rror+0x37c/0x540
[  328.517173][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  328.517217][ T6438]  __submit_merged_bio+0x256/0x700
[  328.517250][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  328.517305][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  328.517336][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  328.517370][ T6438]  do_write_page+0x40f/0xac0
[  328.517401][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  328.517426][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  328.517466][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  328.517499][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.517530][ T6438]  ? release_pages+0x56c/0x5a0
[  328.517560][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  328.517609][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  328.517653][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.517683][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  328.517708][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.517735][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  328.517754][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.517813][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.517843][ T6438]  ? kernel_text_address+0xa5/0xe0
[  328.517896][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.517943][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.517986][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  328.518007][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.518027][ T6438]  do_writepages+0x32e/0x550
[  328.518062][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  328.518086][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  328.518117][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  328.518292][ T6438]  ? down_write+0x16d/0x200
[  328.518332][ T6438]  ? __pfx_down_write+0x10/0x10
[  328.518383][ T6438]  f2fs_collapse_range+0x48f/0x530
[  328.518406][ T6438]  ? inode_dio_wait+0x7f/0x270
[  328.518436][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  328.518463][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  328.518485][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  328.518510][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  328.518537][ T6438]  vfs_fallocate+0x669/0x7e0
[  328.518557][ T6438]  ? __fget_files+0x2a/0x420
[  328.518587][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  328.518606][ T6438]  ? __fget_files+0x2a/0x420
[  328.518639][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  328.518664][ T6438]  do_syscall_64+0x14d/0xf80
[  328.518687][ T6438]  ? trace_irq_disable+0x3b/0x150
[  328.518703][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.518721][ T6438]  ? clear_bhb_loop+0x40/0x90
[  328.518744][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.518762][ T6438] RIP: 0033:0x7fdb8319c629
[  328.518781][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  328.518796][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  328.518816][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  328.518830][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  328.518841][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  328.518852][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  328.518863][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  328.518898][ T6438]  </TASK>
[  328.518908][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  328.567014][ T6605] team0: Port device team_slave_0 added
[  328.851776][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  328.851803][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  328.851814][ T6438] Call Trace:
[  328.851822][ T6438]  <TASK>
[  328.851830][ T6438]  dump_stack_lvl+0xe8/0x150
[  328.851861][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  328.851894][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  328.851934][ T6438]  __submit_merged_bio+0x256/0x700
[  328.851966][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  328.852022][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  328.852053][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  328.852088][ T6438]  do_write_page+0x40f/0xac0
[  328.852125][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  328.852150][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  328.852190][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  328.852222][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.852255][ T6438]  ? release_pages+0x56c/0x5a0
[  328.852285][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  328.852329][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  328.852374][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.852404][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  328.852429][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.852456][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  328.852475][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.852534][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.852567][ T6438]  ? kernel_text_address+0xa5/0xe0
[  328.852619][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.852667][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.852709][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  328.852729][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.852749][ T6438]  do_writepages+0x32e/0x550
[  328.852784][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  328.852809][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  328.852838][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  328.852905][ T6438]  ? down_write+0x16d/0x200
[  328.852930][ T6438]  ? __pfx_down_write+0x10/0x10
[  328.852967][ T6438]  f2fs_collapse_range+0x48f/0x530
[  328.852986][ T6438]  ? inode_dio_wait+0x7f/0x270
[  328.853015][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  328.853042][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  328.853064][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  328.853087][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  328.853114][ T6438]  vfs_fallocate+0x669/0x7e0
[  328.853136][ T6438]  ? __fget_files+0x2a/0x420
[  328.853166][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  328.853184][ T6438]  ? __fget_files+0x2a/0x420
[  328.853218][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  328.853243][ T6438]  do_syscall_64+0x14d/0xf80
[  328.853264][ T6438]  ? trace_irq_disable+0x3b/0x150
[  328.853280][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.853298][ T6438]  ? clear_bhb_loop+0x40/0x90
[  328.853320][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.853338][ T6438] RIP: 0033:0x7fdb8319c629
[  328.853356][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  328.853370][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  328.853390][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  328.853403][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  328.853413][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  328.853424][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  328.853435][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  328.853468][ T6438]  </TASK>
[  328.853476][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  328.881150][ T6613] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  328.885164][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  328.885188][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  328.885199][ T6438] Call Trace:
[  328.885207][ T6438]  <TASK>
[  328.885214][ T6438]  dump_stack_lvl+0xe8/0x150
[  328.885244][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  328.885277][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  328.885316][ T6438]  __submit_merged_bio+0x256/0x700
[  328.885348][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  328.885403][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  328.885434][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  328.885468][ T6438]  do_write_page+0x40f/0xac0
[  328.885498][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  328.885524][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  328.885564][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  328.885596][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.885629][ T6438]  ? release_pages+0x56c/0x5a0
[  328.885659][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  328.885707][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  328.885754][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.885784][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  328.885808][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  328.885835][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  328.885854][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.885914][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.885947][ T6438]  ? kernel_text_address+0xa5/0xe0
[  328.886000][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.886047][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  328.886090][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  328.886117][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  328.886136][ T6438]  do_writepages+0x32e/0x550
[  328.886171][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  328.886196][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  328.886226][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  328.886292][ T6438]  ? down_write+0x16d/0x200
[  328.886317][ T6438]  ? __pfx_down_write+0x10/0x10
[  328.886353][ T6438]  f2fs_collapse_range+0x48f/0x530
[  328.886373][ T6438]  ? inode_dio_wait+0x7f/0x270
[  328.886402][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  328.886429][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  328.886451][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  328.886475][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  328.886502][ T6438]  vfs_fallocate+0x669/0x7e0
[  328.886521][ T6438]  ? __fget_files+0x2a/0x420
[  328.886550][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  328.886568][ T6438]  ? __fget_files+0x2a/0x420
[  328.886605][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  328.886629][ T6438]  do_syscall_64+0x14d/0xf80
[  328.886650][ T6438]  ? trace_irq_disable+0x3b/0x150
[  328.886666][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.886684][ T6438]  ? clear_bhb_loop+0x40/0x90
[  328.886706][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.886724][ T6438] RIP: 0033:0x7fdb8319c629
[  328.886741][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  328.886756][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  328.886775][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  328.886788][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  328.886799][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  328.886810][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  328.886821][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  328.886854][ T6438]  </TASK>
[  328.888166][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  329.187218][ T5943] Bluetooth: hci3: command tx timeout
[  329.227170][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  329.227196][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  329.227207][ T6438] Call Trace:
[  329.227215][ T6438]  <TASK>
[  329.227223][ T6438]  dump_stack_lvl+0xe8/0x150
[  329.227254][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  329.227287][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  329.227325][ T6438]  __submit_merged_bio+0x256/0x700
[  329.227358][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  329.227413][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  329.227444][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  329.227478][ T6438]  do_write_page+0x40f/0xac0
[  329.227508][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  329.227534][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  329.227573][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  329.227606][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  329.227638][ T6438]  ? release_pages+0x56c/0x5a0
[  329.227667][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  329.227711][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  329.227758][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  329.227788][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  329.227812][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  329.227840][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  329.227859][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  329.227919][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  329.227952][ T6438]  ? kernel_text_address+0xa5/0xe0
[  329.228004][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  329.228052][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  329.228105][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  329.228126][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  329.228146][ T6438]  do_writepages+0x32e/0x550
[  329.228180][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  329.228205][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  329.228236][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  329.228302][ T6438]  ? down_write+0x16d/0x200
[  329.228327][ T6438]  ? __pfx_down_write+0x10/0x10
[  329.228363][ T6438]  f2fs_collapse_range+0x48f/0x530
[  329.228383][ T6438]  ? inode_dio_wait+0x7f/0x270
[  329.228411][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  329.228439][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  329.228462][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  329.228485][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  329.228513][ T6438]  vfs_fallocate+0x669/0x7e0
[  329.228531][ T6438]  ? __fget_files+0x2a/0x420
[  329.228561][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  329.228578][ T6438]  ? __fget_files+0x2a/0x420
[  329.228612][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  329.228636][ T6438]  do_syscall_64+0x14d/0xf80
[  329.228658][ T6438]  ? trace_irq_disable+0x3b/0x150
[  329.228674][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.228692][ T6438]  ? clear_bhb_loop+0x40/0x90
[  329.228715][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.228732][ T6438] RIP: 0033:0x7fdb8319c629
[  329.228751][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  329.228766][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  329.228785][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  329.228799][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  329.228810][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  329.228821][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  329.228832][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  329.228866][ T6438]  </TASK>
[  329.228874][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  331.267953][ T5943] Bluetooth: hci3: command tx timeout
[  331.279194][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  331.279220][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  331.279231][ T6438] Call Trace:
[  331.279239][ T6438]  <TASK>
[  331.279247][ T6438]  dump_stack_lvl+0xe8/0x150
[  331.279278][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  331.279310][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  331.279349][ T6438]  __submit_merged_bio+0x256/0x700
[  331.279381][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  331.279437][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  331.279468][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  331.279503][ T6438]  do_write_page+0x40f/0xac0
[  331.279533][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  331.279559][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  331.279599][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  331.279630][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  331.279664][ T6438]  ? release_pages+0x56c/0x5a0
[  331.279695][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  331.279739][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  331.279786][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  331.279832][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  331.279857][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  331.279889][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  331.279909][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  331.279969][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  331.280006][ T6438]  ? kernel_text_address+0xa5/0xe0
[  331.280059][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  331.280106][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  331.280148][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  331.280179][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  331.280199][ T6438]  do_writepages+0x32e/0x550
[  331.280234][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  331.280259][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  331.280289][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  331.280355][ T6438]  ? down_write+0x16d/0x200
[  331.280381][ T6438]  ? __pfx_down_write+0x10/0x10
[  331.280417][ T6438]  f2fs_collapse_range+0x48f/0x530
[  331.280436][ T6438]  ? inode_dio_wait+0x7f/0x270
[  331.280466][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  331.280493][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  331.280515][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  331.280538][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  331.280566][ T6438]  vfs_fallocate+0x669/0x7e0
[  331.280585][ T6438]  ? __fget_files+0x2a/0x420
[  331.280614][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  331.280632][ T6438]  ? __fget_files+0x2a/0x420
[  331.280665][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  331.280690][ T6438]  do_syscall_64+0x14d/0xf80
[  331.280711][ T6438]  ? trace_irq_disable+0x3b/0x150
[  331.280726][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.280745][ T6438]  ? clear_bhb_loop+0x40/0x90
[  331.280767][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.280785][ T6438] RIP: 0033:0x7fdb8319c629
[  331.280802][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  331.280817][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  331.280836][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  331.280849][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  331.280860][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  331.280871][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  331.280882][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  331.280920][ T6438]  </TASK>
[  331.280928][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  336.327935][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  336.327960][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  336.327971][ T6438] Call Trace:
[  336.327981][ T6438]  <TASK>
[  336.327990][ T6438]  dump_stack_lvl+0xe8/0x150
[  336.328017][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  336.328046][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  336.328078][ T6438]  __submit_merged_bio+0x256/0x700
[  336.328107][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  336.328149][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  336.328174][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  336.328202][ T6438]  do_write_page+0x40f/0xac0
[  336.328230][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  336.328253][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  336.328289][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  336.328317][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.328384][ T6438]  ? release_pages+0x56c/0x5a0
[  336.328413][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  336.328456][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  336.328503][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  336.328533][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  336.328558][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  336.328586][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  336.328605][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.328663][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  336.328695][ T6438]  ? kernel_text_address+0xa5/0xe0
[  336.328746][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.328793][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.328835][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  336.328856][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  336.328876][ T6438]  do_writepages+0x32e/0x550
[  336.328911][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  336.328936][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  336.328968][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  336.329033][ T6438]  ? down_write+0x16d/0x200
[  336.329058][ T6438]  ? __pfx_down_write+0x10/0x10
[  336.329094][ T6438]  f2fs_collapse_range+0x48f/0x530
[  336.329115][ T6438]  ? inode_dio_wait+0x7f/0x270
[  336.329144][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  336.329172][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  336.329195][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  336.329218][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  336.329246][ T6438]  vfs_fallocate+0x669/0x7e0
[  336.329266][ T6438]  ? __fget_files+0x2a/0x420
[  336.329295][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  336.329314][ T6438]  ? __fget_files+0x2a/0x420
[  336.329352][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  336.329377][ T6438]  do_syscall_64+0x14d/0xf80
[  336.329400][ T6438]  ? trace_irq_disable+0x3b/0x150
[  336.329416][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.329435][ T6438]  ? clear_bhb_loop+0x40/0x90
[  336.329458][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.329476][ T6438] RIP: 0033:0x7fdb8319c629
[  336.329495][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  336.329511][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  336.329531][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  336.329544][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  336.329556][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  336.329567][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  336.329579][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  336.329610][ T6438]  </TASK>
[  336.329619][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  336.705713][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  336.705733][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  336.705740][ T6438] Call Trace:
[  336.705744][ T6438]  <TASK>
[  336.705749][ T6438]  dump_stack_lvl+0xe8/0x150
[  336.705770][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  336.705790][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  336.705812][ T6438]  __submit_merged_bio+0x256/0x700
[  336.705830][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  336.705861][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  336.705879][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  336.705900][ T6438]  do_write_page+0x40f/0xac0
[  336.705918][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  336.705932][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  336.705956][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  336.705975][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.705995][ T6438]  ? release_pages+0x56c/0x5a0
[  336.706013][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  336.706039][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  336.706065][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  336.706083][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  336.706098][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  336.706115][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  336.706126][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.706158][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  336.706175][ T6438]  ? kernel_text_address+0xa5/0xe0
[  336.706203][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.706229][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  336.706253][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  336.706266][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  336.706276][ T6438]  do_writepages+0x32e/0x550
[  336.706297][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  336.706313][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  336.706332][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  336.706368][ T6438]  ? down_write+0x16d/0x200
[  336.706384][ T6438]  ? __pfx_down_write+0x10/0x10
[  336.706406][ T6438]  f2fs_collapse_range+0x48f/0x530
[  336.706418][ T6438]  ? inode_dio_wait+0x7f/0x270
[  336.706434][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  336.706450][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  336.706463][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  336.706477][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  336.706492][ T6438]  vfs_fallocate+0x669/0x7e0
[  336.706504][ T6438]  ? __fget_files+0x2a/0x420
[  336.706521][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  336.706532][ T6438]  ? __fget_files+0x2a/0x420
[  336.706558][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  336.706573][ T6438]  do_syscall_64+0x14d/0xf80
[  336.706587][ T6438]  ? trace_irq_disable+0x3b/0x150
[  336.706596][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.706607][ T6438]  ? clear_bhb_loop+0x40/0x90
[  336.706620][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.706631][ T6438] RIP: 0033:0x7fdb8319c629
[  336.706643][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  336.706652][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  336.706664][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  336.706672][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  336.706678][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  336.706685][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  336.706691][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  336.706709][ T6438]  </TASK>
[  336.706714][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  337.082990][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  337.083013][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  337.083020][ T6438] Call Trace:
[  337.083025][ T6438]  <TASK>
[  337.083031][ T6438]  dump_stack_lvl+0xe8/0x150
[  337.083053][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  337.083073][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  337.083094][ T6438]  __submit_merged_bio+0x256/0x700
[  337.083113][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  337.083143][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  337.083161][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  337.083183][ T6438]  do_write_page+0x40f/0xac0
[  337.083200][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  337.083217][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  337.083240][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  337.083260][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.083279][ T6438]  ? release_pages+0x56c/0x5a0
[  337.083297][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  337.083322][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  337.083349][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.083366][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  337.083381][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.083398][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  337.083408][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.083441][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.083466][ T6438]  ? kernel_text_address+0xa5/0xe0
[  337.083495][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.083521][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.083545][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  337.083558][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.083569][ T6438]  do_writepages+0x32e/0x550
[  337.083589][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  337.083603][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  337.083623][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  337.083659][ T6438]  ? down_write+0x16d/0x200
[  337.083676][ T6438]  ? __pfx_down_write+0x10/0x10
[  337.083698][ T6438]  f2fs_collapse_range+0x48f/0x530
[  337.083711][ T6438]  ? inode_dio_wait+0x7f/0x270
[  337.083728][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  337.083744][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  337.083757][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  337.083771][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  337.083786][ T6438]  vfs_fallocate+0x669/0x7e0
[  337.083798][ T6438]  ? __fget_files+0x2a/0x420
[  337.083816][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  337.083827][ T6438]  ? __fget_files+0x2a/0x420
[  337.083847][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  337.083862][ T6438]  do_syscall_64+0x14d/0xf80
[  337.083876][ T6438]  ? trace_irq_disable+0x3b/0x150
[  337.083885][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.083896][ T6438]  ? clear_bhb_loop+0x40/0x90
[  337.083909][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.083920][ T6438] RIP: 0033:0x7fdb8319c629
[  337.083931][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  337.083940][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  337.083952][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  337.083959][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  337.083966][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  337.083972][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  337.083978][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  337.083996][ T6438]  </TASK>
[  337.084001][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  337.467189][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  337.467217][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  337.467227][ T6438] Call Trace:
[  337.467234][ T6438]  <TASK>
[  337.467252][ T6438]  dump_stack_lvl+0xe8/0x150
[  337.467283][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  337.467314][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  337.467351][ T6438]  __submit_merged_bio+0x256/0x700
[  337.467383][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  337.467437][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  337.467466][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  337.467498][ T6438]  do_write_page+0x40f/0xac0
[  337.467526][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  337.467550][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  337.467588][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  337.467618][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.467650][ T6438]  ? release_pages+0x56c/0x5a0
[  337.467679][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  337.467722][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  337.467767][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.467795][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  337.467817][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.467843][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  337.467861][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.467919][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.467951][ T6438]  ? kernel_text_address+0xa5/0xe0
[  337.468003][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.468050][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.468092][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  337.468112][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.468130][ T6438]  do_writepages+0x32e/0x550
[  337.468164][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  337.468187][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  337.468216][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  337.468343][ T6438]  ? down_write+0x16d/0x200
[  337.468368][ T6438]  ? __pfx_down_write+0x10/0x10
[  337.468403][ T6438]  f2fs_collapse_range+0x48f/0x530
[  337.468422][ T6438]  ? inode_dio_wait+0x7f/0x270
[  337.468450][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  337.468476][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  337.468496][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  337.468516][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  337.468542][ T6438]  vfs_fallocate+0x669/0x7e0
[  337.468560][ T6438]  ? __fget_files+0x2a/0x420
[  337.468588][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  337.468605][ T6438]  ? __fget_files+0x2a/0x420
[  337.468637][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  337.468660][ T6438]  do_syscall_64+0x14d/0xf80
[  337.468680][ T6438]  ? trace_irq_disable+0x3b/0x150
[  337.468695][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.468712][ T6438]  ? clear_bhb_loop+0x40/0x90
[  337.468733][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.468750][ T6438] RIP: 0033:0x7fdb8319c629
[  337.468768][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  337.468782][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  337.468801][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  337.468813][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  337.468824][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  337.468834][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  337.468844][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  337.468876][ T6438]  </TASK>
[  337.468885][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  337.836433][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  337.836457][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  337.836466][ T6438] Call Trace:
[  337.836474][ T6438]  <TASK>
[  337.836480][ T6438]  dump_stack_lvl+0xe8/0x150
[  337.836511][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  337.836541][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  337.836575][ T6438]  __submit_merged_bio+0x256/0x700
[  337.836604][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  337.836655][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  337.836683][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  337.836713][ T6438]  do_write_page+0x40f/0xac0
[  337.836741][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  337.836763][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  337.836796][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  337.836823][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.836852][ T6438]  ? release_pages+0x56c/0x5a0
[  337.836880][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  337.836919][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  337.836964][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.836991][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  337.837014][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  337.837038][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  337.837052][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.837085][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.837102][ T6438]  ? kernel_text_address+0xa5/0xe0
[  337.837131][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.837157][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  337.837181][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  337.837221][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  337.837232][ T6438]  do_writepages+0x32e/0x550
[  337.837252][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  337.837267][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  337.837286][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  337.837322][ T6438]  ? down_write+0x16d/0x200
[  337.837339][ T6438]  ? __pfx_down_write+0x10/0x10
[  337.837360][ T6438]  f2fs_collapse_range+0x48f/0x530
[  337.837373][ T6438]  ? inode_dio_wait+0x7f/0x270
[  337.837389][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  337.837405][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  337.837418][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  337.837432][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  337.837447][ T6438]  vfs_fallocate+0x669/0x7e0
[  337.837459][ T6438]  ? __fget_files+0x2a/0x420
[  337.837477][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  337.837487][ T6438]  ? __fget_files+0x2a/0x420
[  337.837507][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  337.837521][ T6438]  do_syscall_64+0x14d/0xf80
[  337.837535][ T6438]  ? trace_irq_disable+0x3b/0x150
[  337.837545][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.837556][ T6438]  ? clear_bhb_loop+0x40/0x90
[  337.837569][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.837580][ T6438] RIP: 0033:0x7fdb8319c629
[  337.837593][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  337.837602][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  337.837614][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  337.837622][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  337.837629][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  337.837635][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  337.837641][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  337.837659][ T6438]  </TASK>
[  338.194282][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  338.203687][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  338.203712][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  338.203721][ T6438] Call Trace:
[  338.203728][ T6438]  <TASK>
[  338.203734][ T6438]  dump_stack_lvl+0xe8/0x150
[  338.203761][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  338.203789][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  338.203825][ T6438]  __submit_merged_bio+0x256/0x700
[  338.203854][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  338.203902][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  338.203933][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  338.203965][ T6438]  do_write_page+0x40f/0xac0
[  338.203995][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  338.204021][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  338.204059][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  338.204087][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.204118][ T6438]  ? release_pages+0x56c/0x5a0
[  338.204148][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  338.204193][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  338.204240][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.204271][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  338.204296][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.204320][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  338.204337][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.204406][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.204435][ T6438]  ? kernel_text_address+0xa5/0xe0
[  338.204489][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.204538][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.204582][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  338.204604][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.204625][ T6438]  do_writepages+0x32e/0x550
[  338.204662][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  338.204688][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  338.204721][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  338.204791][ T6438]  ? down_write+0x16d/0x200
[  338.204817][ T6438]  ? __pfx_down_write+0x10/0x10
[  338.204855][ T6438]  f2fs_collapse_range+0x48f/0x530
[  338.204875][ T6438]  ? inode_dio_wait+0x7f/0x270
[  338.204907][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  338.204936][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  338.204959][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  338.204986][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  338.205010][ T6438]  vfs_fallocate+0x669/0x7e0
[  338.205029][ T6438]  ? __fget_files+0x2a/0x420
[  338.205058][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  338.205075][ T6438]  ? __fget_files+0x2a/0x420
[  338.205109][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  338.205134][ T6438]  do_syscall_64+0x14d/0xf80
[  338.205157][ T6438]  ? trace_irq_disable+0x3b/0x150
[  338.205173][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.205191][ T6438]  ? clear_bhb_loop+0x40/0x90
[  338.205211][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.205229][ T6438] RIP: 0033:0x7fdb8319c629
[  338.205247][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  338.205262][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  338.205292][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  338.205303][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  338.205313][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  338.205323][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  338.205332][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  338.205369][ T6438]  </TASK>
[  338.205862][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  338.576242][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  338.576267][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  338.576278][ T6438] Call Trace:
[  338.576285][ T6438]  <TASK>
[  338.576293][ T6438]  dump_stack_lvl+0xe8/0x150
[  338.576319][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  338.576339][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  338.576363][ T6438]  __submit_merged_bio+0x256/0x700
[  338.576382][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  338.576412][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  338.576430][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  338.576451][ T6438]  do_write_page+0x40f/0xac0
[  338.576468][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  338.576483][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  338.576506][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  338.576525][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.576546][ T6438]  ? release_pages+0x56c/0x5a0
[  338.576564][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  338.576589][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  338.576616][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.576634][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  338.576649][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.576665][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  338.576677][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.576708][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.576726][ T6438]  ? kernel_text_address+0xa5/0xe0
[  338.576754][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.576780][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.576804][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  338.576817][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.576828][ T6438]  do_writepages+0x32e/0x550
[  338.576848][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  338.576862][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  338.576880][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  338.576916][ T6438]  ? down_write+0x16d/0x200
[  338.576940][ T6438]  ? __pfx_down_write+0x10/0x10
[  338.576970][ T6438]  f2fs_collapse_range+0x48f/0x530
[  338.576988][ T6438]  ? inode_dio_wait+0x7f/0x270
[  338.577013][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  338.577038][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  338.577059][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  338.577073][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  338.577088][ T6438]  vfs_fallocate+0x669/0x7e0
[  338.577101][ T6438]  ? __fget_files+0x2a/0x420
[  338.577124][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  338.577135][ T6438]  ? __fget_files+0x2a/0x420
[  338.577155][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  338.577169][ T6438]  do_syscall_64+0x14d/0xf80
[  338.577183][ T6438]  ? trace_irq_disable+0x3b/0x150
[  338.577193][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.577204][ T6438]  ? clear_bhb_loop+0x40/0x90
[  338.577217][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.577227][ T6438] RIP: 0033:0x7fdb8319c629
[  338.577240][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  338.577248][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  338.577261][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  338.577269][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  338.577275][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  338.577281][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  338.577288][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  338.577305][ T6438]  </TASK>
[  338.932290][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  338.939297][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  338.939323][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  338.939334][ T6438] Call Trace:
[  338.939342][ T6438]  <TASK>
[  338.939350][ T6438]  dump_stack_lvl+0xe8/0x150
[  338.939382][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  338.939415][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  338.939454][ T6438]  __submit_merged_bio+0x256/0x700
[  338.939484][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  338.939538][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  338.939569][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  338.939604][ T6438]  do_write_page+0x40f/0xac0
[  338.939633][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  338.939659][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  338.939698][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  338.939731][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.939763][ T6438]  ? release_pages+0x56c/0x5a0
[  338.939793][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  338.939836][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  338.939882][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.939911][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  338.939933][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  338.939961][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  338.939977][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.940039][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.940064][ T6438]  ? kernel_text_address+0xa5/0xe0
[  338.940102][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.940136][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  338.940168][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  338.940185][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  338.940200][ T6438]  do_writepages+0x32e/0x550
[  338.940226][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  338.940245][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  338.940271][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  338.940319][ T6438]  ? down_write+0x16d/0x200
[  338.940340][ T6438]  ? __pfx_down_write+0x10/0x10
[  338.940367][ T6438]  f2fs_collapse_range+0x48f/0x530
[  338.940383][ T6438]  ? inode_dio_wait+0x7f/0x270
[  338.940405][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  338.940426][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  338.940442][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  338.940461][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  338.940481][ T6438]  vfs_fallocate+0x669/0x7e0
[  338.940496][ T6438]  ? __fget_files+0x2a/0x420
[  338.940519][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  338.940532][ T6438]  ? __fget_files+0x2a/0x420
[  338.940558][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  338.940576][ T6438]  do_syscall_64+0x14d/0xf80
[  338.940594][ T6438]  ? trace_irq_disable+0x3b/0x150
[  338.940606][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.940620][ T6438]  ? clear_bhb_loop+0x40/0x90
[  338.940637][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.940651][ T6438] RIP: 0033:0x7fdb8319c629
[  338.940666][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  338.940677][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  338.940693][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  338.940703][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  338.940713][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  338.940721][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  338.940730][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  338.940754][ T6438]  </TASK>
[  338.940766][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.307694][ T6438] CPU: 1 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.307720][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.307730][ T6438] Call Trace:
[  339.307738][ T6438]  <TASK>
[  339.307746][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.307778][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.307811][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.307850][ T6438]  __submit_merged_bio+0x256/0x700
[  339.307880][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.307931][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.308058][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.308107][ T6438]  do_write_page+0x40f/0xac0
[  339.308138][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.308165][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.308206][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.308240][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.308274][ T6438]  ? release_pages+0x56c/0x5a0
[  339.308304][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.308348][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.308397][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.308430][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.308458][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.308487][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.308507][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.308568][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.308604][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.308659][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.308711][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.308760][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.308782][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.308804][ T6438]  do_writepages+0x32e/0x550
[  339.308849][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.308877][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.308909][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.308978][ T6438]  ? down_write+0x16d/0x200
[  339.309006][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.309053][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.309076][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.309107][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.309137][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.309162][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.309187][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.309215][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.309236][ T6438]  ? __fget_files+0x2a/0x420
[  339.309268][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.309285][ T6438]  ? __fget_files+0x2a/0x420
[  339.309321][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.309348][ T6438]  do_syscall_64+0x14d/0xf80
[  339.309370][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.309388][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.309407][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.309432][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.309451][ T6438] RIP: 0033:0x7fdb8319c629
[  339.309471][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.309486][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.309508][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.309522][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.309534][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.309546][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.309558][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.309595][ T6438]  </TASK>
[  339.309605][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.675722][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.675746][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.675757][ T6438] Call Trace:
[  339.675766][ T6438]  <TASK>
[  339.675775][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.675804][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.675833][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.675865][ T6438]  __submit_merged_bio+0x256/0x700
[  339.675895][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.675943][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.675982][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.676013][ T6438]  do_write_page+0x40f/0xac0
[  339.676036][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.676052][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.676075][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.676095][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.676115][ T6438]  ? release_pages+0x56c/0x5a0
[  339.676134][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.676159][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.676186][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.676205][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.676222][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.676239][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.676250][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.676282][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.676300][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.676329][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.676355][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.676379][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.676391][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.676402][ T6438]  do_writepages+0x32e/0x550
[  339.676423][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.676437][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.676458][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.676494][ T6438]  ? down_write+0x16d/0x200
[  339.676511][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.676533][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.676546][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.676562][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.676578][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.676591][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.676604][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.676619][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.676632][ T6438]  ? __fget_files+0x2a/0x420
[  339.676649][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.676660][ T6438]  ? __fget_files+0x2a/0x420
[  339.676680][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.676695][ T6438]  do_syscall_64+0x14d/0xf80
[  339.676709][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.676718][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.676729][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.676742][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.676753][ T6438] RIP: 0033:0x7fdb8319c629
[  339.676766][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.676774][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.676787][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.676795][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.676801][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.676808][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.676814][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.676832][ T6438]  </TASK>
[  339.676837][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.722316][ T6605] team0: Port device team_slave_1 added
[  339.726171][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.726197][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.726207][ T6438] Call Trace:
[  339.726215][ T6438]  <TASK>
[  339.726223][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.726253][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.726284][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.726321][ T6438]  __submit_merged_bio+0x256/0x700
[  339.726351][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.726403][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.726432][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.726465][ T6438]  do_write_page+0x40f/0xac0
[  339.726493][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.726518][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.726556][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.726587][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.726618][ T6438]  ? release_pages+0x56c/0x5a0
[  339.726648][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.726690][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.726734][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.726763][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.726787][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.726815][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.726834][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.726888][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.726919][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.727018][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.727063][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.727103][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.727124][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.727142][ T6438]  do_writepages+0x32e/0x550
[  339.727175][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.727199][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.727228][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.727291][ T6438]  ? down_write+0x16d/0x200
[  339.727316][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.727350][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.727370][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.727399][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.727425][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.727447][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.727468][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.727495][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.727513][ T6438]  ? __fget_files+0x2a/0x420
[  339.727543][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.727559][ T6438]  ? __fget_files+0x2a/0x420
[  339.727592][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.727615][ T6438]  do_syscall_64+0x14d/0xf80
[  339.727637][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.727652][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.727670][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.727691][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.727709][ T6438] RIP: 0033:0x7fdb8319c629
[  339.727727][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.727742][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.727761][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.727773][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.727785][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.727796][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.727807][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.727838][ T6438]  </TASK>
[  339.727890][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.810217][ T6616] team0: Port device team_slave_0 added
[  339.811379][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.811401][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.811413][ T6438] Call Trace:
[  339.811421][ T6438]  <TASK>
[  339.811428][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.811458][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.811491][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.811530][ T6438]  __submit_merged_bio+0x256/0x700
[  339.811561][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.811617][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.811647][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.811683][ T6438]  do_write_page+0x40f/0xac0
[  339.811713][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.811739][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.811779][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.811811][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.811844][ T6438]  ? release_pages+0x56c/0x5a0
[  339.811874][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.811919][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.811966][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.812005][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.812030][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.812057][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.812077][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.812136][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.812168][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.812222][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.812269][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.812313][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.812333][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.812353][ T6438]  do_writepages+0x32e/0x550
[  339.812388][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.812412][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.812443][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.812510][ T6438]  ? down_write+0x16d/0x200
[  339.812536][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.812572][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.812592][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.812621][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.812650][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.812671][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.812696][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.812723][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.812742][ T6438]  ? __fget_files+0x2a/0x420
[  339.812770][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.812789][ T6438]  ? __fget_files+0x2a/0x420
[  339.812823][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.812847][ T6438]  do_syscall_64+0x14d/0xf80
[  339.812869][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.812884][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.812903][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.812926][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.812943][ T6438] RIP: 0033:0x7fdb8319c629
[  339.812962][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.812982][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.813001][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.813014][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.813026][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.813037][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.813048][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.813081][ T6438]  </TASK>
[  339.813089][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.857811][ T6613] team0: Port device team_slave_0 added
[  339.860516][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.860539][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.860551][ T6438] Call Trace:
[  339.860560][ T6438]  <TASK>
[  339.860568][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.860599][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.860633][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.860669][ T6438]  __submit_merged_bio+0x256/0x700
[  339.860700][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.860753][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.860783][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.860816][ T6438]  do_write_page+0x40f/0xac0
[  339.860845][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.860870][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.860909][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.860940][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.860971][ T6438]  ? release_pages+0x56c/0x5a0
[  339.861037][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.861080][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.861125][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.861154][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.861179][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.861205][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.861224][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.861277][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.861308][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.861358][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.861402][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.861442][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.861462][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.861481][ T6438]  do_writepages+0x32e/0x550
[  339.861514][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.861537][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.861567][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.861629][ T6438]  ? down_write+0x16d/0x200
[  339.861653][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.861688][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.861707][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.861735][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.861761][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.861783][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.861805][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.861831][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.861849][ T6438]  ? __fget_files+0x2a/0x420
[  339.861878][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.861896][ T6438]  ? __fget_files+0x2a/0x420
[  339.861928][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.861952][ T6438]  do_syscall_64+0x14d/0xf80
[  339.861973][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.861995][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.862013][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.862034][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.862052][ T6438] RIP: 0033:0x7fdb8319c629
[  339.862072][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.862086][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.862106][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.862119][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.862130][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.862141][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.862152][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.862183][ T6438]  </TASK>
[  339.862191][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.891536][ T6616] team0: Port device team_slave_1 added
[  339.896402][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.896425][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.896436][ T6438] Call Trace:
[  339.896444][ T6438]  <TASK>
[  339.896452][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.896482][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.896514][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.896550][ T6438]  __submit_merged_bio+0x256/0x700
[  339.896581][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.896633][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.896662][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.896695][ T6438]  do_write_page+0x40f/0xac0
[  339.896723][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.896748][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.896786][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.896817][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.896849][ T6438]  ? release_pages+0x56c/0x5a0
[  339.896878][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.896919][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.896976][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.897005][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.897029][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.897057][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.897076][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.897132][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.897164][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.897213][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.897257][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.897298][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.897318][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.897336][ T6438]  do_writepages+0x32e/0x550
[  339.897370][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.897393][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.897422][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.897483][ T6438]  ? down_write+0x16d/0x200
[  339.897508][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.897541][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.897561][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.897590][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.897615][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.897636][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.897659][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.897685][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.897703][ T6438]  ? __fget_files+0x2a/0x420
[  339.897732][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.897750][ T6438]  ? __fget_files+0x2a/0x420
[  339.897782][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.897805][ T6438]  do_syscall_64+0x14d/0xf80
[  339.897826][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.897842][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.897860][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.897882][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.897899][ T6438] RIP: 0033:0x7fdb8319c629
[  339.897917][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.897932][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.897952][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.897970][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.897981][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.898058][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.898069][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.898104][ T6438]  </TASK>
[  339.898217][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.935782][ T6612] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  339.940619][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.940645][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.940657][ T6438] Call Trace:
[  339.940665][ T6438]  <TASK>
[  339.940673][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.940703][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.940736][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.940775][ T6438]  __submit_merged_bio+0x256/0x700
[  339.940806][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.940863][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.940905][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.940940][ T6438]  do_write_page+0x40f/0xac0
[  339.940969][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.940995][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.941036][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.941069][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.941102][ T6438]  ? release_pages+0x56c/0x5a0
[  339.941133][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.941245][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.941294][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.941325][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.941351][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.941379][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.941399][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.941458][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.941492][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.941546][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.941594][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.941639][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.941660][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.941679][ T6438]  do_writepages+0x32e/0x550
[  339.941717][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.941742][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.941771][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.941837][ T6438]  ? down_write+0x16d/0x200
[  339.941863][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.941901][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.941921][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.941952][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.941988][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.942011][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.942036][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.942064][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.942084][ T6438]  ? __fget_files+0x2a/0x420
[  339.942114][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.942133][ T6438]  ? __fget_files+0x2a/0x420
[  339.942167][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.942192][ T6438]  do_syscall_64+0x14d/0xf80
[  339.942215][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.942231][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.942249][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.942272][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.942290][ T6438] RIP: 0033:0x7fdb8319c629
[  339.942309][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.942324][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.942344][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.942357][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.942368][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.942380][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.942392][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.942426][ T6438]  </TASK>
[  339.942435][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  339.983743][ T6605] batman_adv: batadv0: Adding interface: batadv_slave_0
[  339.988962][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  339.988986][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  339.988997][ T6438] Call Trace:
[  339.989005][ T6438]  <TASK>
[  339.989013][ T6438]  dump_stack_lvl+0xe8/0x150
[  339.989043][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  339.989075][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  339.989114][ T6438]  __submit_merged_bio+0x256/0x700
[  339.989155][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  339.989211][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  339.989242][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  339.989277][ T6438]  do_write_page+0x40f/0xac0
[  339.989307][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  339.989333][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  339.989373][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  339.989406][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.989439][ T6438]  ? release_pages+0x56c/0x5a0
[  339.989470][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  339.989514][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  339.989563][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.989592][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  339.989617][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  339.989645][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  339.989665][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.989723][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.989756][ T6438]  ? kernel_text_address+0xa5/0xe0
[  339.989810][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.989858][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  339.989900][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  339.989921][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  339.989940][ T6438]  do_writepages+0x32e/0x550
[  339.989975][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  339.989999][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  339.990030][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  339.990097][ T6438]  ? down_write+0x16d/0x200
[  339.990123][ T6438]  ? __pfx_down_write+0x10/0x10
[  339.990166][ T6438]  f2fs_collapse_range+0x48f/0x530
[  339.990185][ T6438]  ? inode_dio_wait+0x7f/0x270
[  339.990215][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  339.990243][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  339.990265][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  339.990289][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  339.990316][ T6438]  vfs_fallocate+0x669/0x7e0
[  339.990335][ T6438]  ? __fget_files+0x2a/0x420
[  339.990365][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  339.990382][ T6438]  ? __fget_files+0x2a/0x420
[  339.990416][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  339.990441][ T6438]  do_syscall_64+0x14d/0xf80
[  339.990462][ T6438]  ? trace_irq_disable+0x3b/0x150
[  339.990477][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.990496][ T6438]  ? clear_bhb_loop+0x40/0x90
[  339.990518][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.990536][ T6438] RIP: 0033:0x7fdb8319c629
[  339.990555][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  339.990569][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  339.990589][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  339.990602][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  339.990613][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  339.990624][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  339.990636][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  339.990669][ T6438]  </TASK>
[  339.990677][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.012590][ T6605] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  340.014009][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.014033][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.014044][ T6438] Call Trace:
[  340.014052][ T6438]  <TASK>
[  340.014060][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.014092][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.014124][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.014160][ T6438]  __submit_merged_bio+0x256/0x700
[  340.014191][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.014243][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.014271][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.014304][ T6438]  do_write_page+0x40f/0xac0
[  340.014333][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.014358][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.014395][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.014427][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.014458][ T6438]  ? release_pages+0x56c/0x5a0
[  340.014486][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.014527][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.014572][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.014601][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.014625][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.014651][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.014670][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.014724][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.014754][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.014800][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.014845][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.014884][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.014905][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.014924][ T6438]  do_writepages+0x32e/0x550
[  340.014963][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.014986][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.015017][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.015077][ T6438]  ? down_write+0x16d/0x200
[  340.015103][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.015137][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.015158][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.015185][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.015212][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.015233][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.015255][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.015281][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.015299][ T6438]  ? __fget_files+0x2a/0x420
[  340.015328][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.015345][ T6438]  ? __fget_files+0x2a/0x420
[  340.015377][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.015401][ T6438]  do_syscall_64+0x14d/0xf80
[  340.015422][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.015437][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.015456][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.015478][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.015495][ T6438] RIP: 0033:0x7fdb8319c629
[  340.015513][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.015528][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.015547][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.015560][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.015571][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.015581][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.015592][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.015624][ T6438]  </TASK>
[  340.015631][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.062531][ T6605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  340.068094][ T6613] team0: Port device team_slave_1 added
[  340.078171][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.078195][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.078206][ T6438] Call Trace:
[  340.078213][ T6438]  <TASK>
[  340.078221][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.078253][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.078286][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.078324][ T6438]  __submit_merged_bio+0x256/0x700
[  340.078356][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.078412][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.078442][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.078476][ T6438]  do_write_page+0x40f/0xac0
[  340.078506][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.078531][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.078571][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.078604][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.078636][ T6438]  ? release_pages+0x56c/0x5a0
[  340.078667][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.078711][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.078758][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.078787][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.078812][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.078839][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.078875][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.078926][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.078963][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.079014][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.079062][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.079107][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.079127][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.079147][ T6438]  do_writepages+0x32e/0x550
[  340.079183][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.079206][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.079236][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.079299][ T6438]  ? down_write+0x16d/0x200
[  340.079325][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.079363][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.079384][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.079415][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.079443][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.079466][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.079490][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.079519][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.079538][ T6438]  ? __fget_files+0x2a/0x420
[  340.079570][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.079588][ T6438]  ? __fget_files+0x2a/0x420
[  340.079624][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.079649][ T6438]  do_syscall_64+0x14d/0xf80
[  340.079672][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.079686][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.079705][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.079728][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.079746][ T6438] RIP: 0033:0x7fdb8319c629
[  340.079765][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.079780][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.079800][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.079814][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.079825][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.079838][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.079849][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.079878][ T6438]  </TASK>
[  340.079886][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.118141][ T6612] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  340.127760][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.127784][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.127795][ T6438] Call Trace:
[  340.127803][ T6438]  <TASK>
[  340.127811][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.127843][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.127876][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.127912][ T6438]  __submit_merged_bio+0x256/0x700
[  340.127947][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.127995][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.128023][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.128055][ T6438]  do_write_page+0x40f/0xac0
[  340.128082][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.128107][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.128147][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.128179][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.128213][ T6438]  ? release_pages+0x56c/0x5a0
[  340.128250][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.128293][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.128344][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.128373][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.128397][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.128423][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.128441][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.128497][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.128526][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.128581][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.128625][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.128665][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.128695][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.128717][ T6438]  do_writepages+0x32e/0x550
[  340.128754][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.128778][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.128808][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.128873][ T6438]  ? down_write+0x16d/0x200
[  340.128899][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.128949][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.128969][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.129004][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.129034][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.129059][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.129088][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.129114][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.129133][ T6438]  ? __fget_files+0x2a/0x420
[  340.129161][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.129179][ T6438]  ? __fget_files+0x2a/0x420
[  340.129212][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.129235][ T6438]  do_syscall_64+0x14d/0xf80
[  340.129257][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.129272][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.129291][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.129313][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.129330][ T6438] RIP: 0033:0x7fdb8319c629
[  340.129348][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.129363][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.129383][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.129396][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.129407][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.129418][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.129429][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.129459][ T6438]  </TASK>
[  340.129468][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.184405][ T6605] batman_adv: batadv0: Adding interface: batadv_slave_1
[  340.185337][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.185359][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.185371][ T6438] Call Trace:
[  340.185379][ T6438]  <TASK>
[  340.185387][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.185415][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.185447][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.185487][ T6438]  __submit_merged_bio+0x256/0x700
[  340.185518][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.185575][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.185607][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.185640][ T6438]  do_write_page+0x40f/0xac0
[  340.185671][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.185697][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.185737][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.185769][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.185802][ T6438]  ? release_pages+0x56c/0x5a0
[  340.185832][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.185876][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.185924][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.185985][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.186009][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.186036][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.186055][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.186114][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.186147][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.186200][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.186247][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.186291][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.186311][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.186330][ T6438]  do_writepages+0x32e/0x550
[  340.186365][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.186390][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.186420][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.186487][ T6438]  ? down_write+0x16d/0x200
[  340.186512][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.186548][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.186568][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.186597][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.186625][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.186647][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.186670][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.186698][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.186716][ T6438]  ? __fget_files+0x2a/0x420
[  340.186746][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.186763][ T6438]  ? __fget_files+0x2a/0x420
[  340.186798][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.186821][ T6438]  do_syscall_64+0x14d/0xf80
[  340.186843][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.186858][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.186877][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.186900][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.186918][ T6438] RIP: 0033:0x7fdb8319c629
[  340.186946][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.186961][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.186980][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.186994][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.187004][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.187015][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.187026][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.187059][ T6438]  </TASK>
[  340.187330][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.201428][ T6605] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  340.222169][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.222195][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.222207][ T6438] Call Trace:
[  340.222215][ T6438]  <TASK>
[  340.222223][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.222254][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.222287][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.222327][ T6438]  __submit_merged_bio+0x256/0x700
[  340.222358][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.222415][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.222445][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.222479][ T6438]  do_write_page+0x40f/0xac0
[  340.222509][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.222534][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.222574][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.222606][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.222638][ T6438]  ? release_pages+0x56c/0x5a0
[  340.222668][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.222712][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.222759][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.222788][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.222813][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.222840][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.222859][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.222918][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.222958][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.223011][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.223058][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.223101][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.223122][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.223141][ T6438]  do_writepages+0x32e/0x550
[  340.223177][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.223200][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.223231][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.223297][ T6438]  ? down_write+0x16d/0x200
[  340.223322][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.223359][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.223379][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.223408][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.223436][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.223458][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.223482][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.223509][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.223528][ T6438]  ? __fget_files+0x2a/0x420
[  340.223557][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.223575][ T6438]  ? __fget_files+0x2a/0x420
[  340.223609][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.223634][ T6438]  do_syscall_64+0x14d/0xf80
[  340.223654][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.223670][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.223689][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.223712][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.223730][ T6438] RIP: 0033:0x7fdb8319c629
[  340.223748][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.223762][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.223781][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.223795][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.223806][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.223817][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.223828][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.223861][ T6438]  </TASK>
[  340.223869][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.231975][ T6605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  340.238010][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.238036][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.238047][ T6438] Call Trace:
[  340.238055][ T6438]  <TASK>
[  340.238063][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.238095][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.238129][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.238170][ T6438]  __submit_merged_bio+0x256/0x700
[  340.238202][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.238260][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.238292][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.238328][ T6438]  do_write_page+0x40f/0xac0
[  340.238353][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.238376][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.238416][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.238448][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.238482][ T6438]  ? release_pages+0x56c/0x5a0
[  340.238512][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.238557][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.238602][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.238632][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.238657][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.238684][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.238703][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.238762][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.238795][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.238865][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.238913][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.238962][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.238983][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.239002][ T6438]  do_writepages+0x32e/0x550
[  340.239037][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.239062][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.239093][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.239160][ T6438]  ? down_write+0x16d/0x200
[  340.239185][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.239222][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.239242][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.239271][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.239300][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.239322][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.239345][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.239372][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.239391][ T6438]  ? __fget_files+0x2a/0x420
[  340.239421][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.239438][ T6438]  ? __fget_files+0x2a/0x420
[  340.239473][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.239497][ T6438]  do_syscall_64+0x14d/0xf80
[  340.239518][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.239534][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.239552][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.239575][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.239593][ T6438] RIP: 0033:0x7fdb8319c629
[  340.239612][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.239626][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.239645][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.239658][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.239670][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.239681][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.239692][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.239726][ T6438]  </TASK>
[  340.239734][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.268045][ T6616] batman_adv: batadv0: Adding interface: batadv_slave_0
[  340.273380][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.273405][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.273417][ T6438] Call Trace:
[  340.273424][ T6438]  <TASK>
[  340.273432][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.273464][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.273498][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.273536][ T6438]  __submit_merged_bio+0x256/0x700
[  340.273568][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.273625][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.273656][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.273690][ T6438]  do_write_page+0x40f/0xac0
[  340.273719][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.273744][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.273785][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.273818][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.273850][ T6438]  ? release_pages+0x56c/0x5a0
[  340.273881][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.273932][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.273979][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.274009][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.274034][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.274061][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.274080][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.274139][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.274172][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.274224][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.274271][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.274314][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.274334][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.274354][ T6438]  do_writepages+0x32e/0x550
[  340.274389][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.274414][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.274444][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.274511][ T6438]  ? down_write+0x16d/0x200
[  340.274535][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.274572][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.274593][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.274621][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.274649][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.274672][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.274696][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.274722][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.274741][ T6438]  ? __fget_files+0x2a/0x420
[  340.274771][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.274789][ T6438]  ? __fget_files+0x2a/0x420
[  340.274823][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.274847][ T6438]  do_syscall_64+0x14d/0xf80
[  340.274869][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.274884][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.274903][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.274931][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.274949][ T6438] RIP: 0033:0x7fdb8319c629
[  340.274967][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.274982][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.275001][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.275014][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.275025][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.275036][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.275048][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.275081][ T6438]  </TASK>
[  340.275089][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.276367][ T6616] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  340.303265][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.303291][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.303303][ T6438] Call Trace:
[  340.303310][ T6438]  <TASK>
[  340.303319][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.303350][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.303383][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.303423][ T6438]  __submit_merged_bio+0x256/0x700
[  340.303454][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.303511][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.303542][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.303576][ T6438]  do_write_page+0x40f/0xac0
[  340.303606][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.303632][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.303672][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.303705][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.303738][ T6438]  ? release_pages+0x56c/0x5a0
[  340.303769][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.303813][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.303861][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.303890][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.303915][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.303948][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.303967][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.304028][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.304061][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.304115][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.304164][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.304207][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.304228][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.304247][ T6438]  do_writepages+0x32e/0x550
[  340.304283][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.304308][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.304339][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.304408][ T6438]  ? down_write+0x16d/0x200
[  340.304433][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.304470][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.304490][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.304520][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.304547][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.304570][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.304593][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.304620][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.304639][ T6438]  ? __fget_files+0x2a/0x420
[  340.304669][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.304687][ T6438]  ? __fget_files+0x2a/0x420
[  340.304722][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.304745][ T6438]  do_syscall_64+0x14d/0xf80
[  340.304767][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.304783][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.304801][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.304824][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.304842][ T6438] RIP: 0033:0x7fdb8319c629
[  340.304860][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.304875][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.304894][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.304907][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.304918][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.304935][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.304946][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.304980][ T6438]  </TASK>
[  340.304987][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.319127][ T6616] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  340.321089][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.321111][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.321122][ T6438] Call Trace:
[  340.321130][ T6438]  <TASK>
[  340.321138][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.321168][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.321200][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.321238][ T6438]  __submit_merged_bio+0x256/0x700
[  340.321270][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.321325][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.321356][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.321390][ T6438]  do_write_page+0x40f/0xac0
[  340.321420][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.321446][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.321485][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.321517][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.321550][ T6438]  ? release_pages+0x56c/0x5a0
[  340.321582][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.321625][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.321672][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.321702][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.321726][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.321755][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.321774][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.321833][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.321867][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.321926][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.321974][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.322017][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.322038][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.322057][ T6438]  do_writepages+0x32e/0x550
[  340.322093][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  340.322117][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  340.322148][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  340.322214][ T6438]  ? down_write+0x16d/0x200
[  340.322240][ T6438]  ? __pfx_down_write+0x10/0x10
[  340.322276][ T6438]  f2fs_collapse_range+0x48f/0x530
[  340.322296][ T6438]  ? inode_dio_wait+0x7f/0x270
[  340.322326][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  340.322353][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  340.322376][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  340.322399][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  340.322426][ T6438]  vfs_fallocate+0x669/0x7e0
[  340.322445][ T6438]  ? __fget_files+0x2a/0x420
[  340.322475][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  340.322493][ T6438]  ? __fget_files+0x2a/0x420
[  340.322527][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  340.322551][ T6438]  do_syscall_64+0x14d/0xf80
[  340.322573][ T6438]  ? trace_irq_disable+0x3b/0x150
[  340.322588][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.322606][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.322628][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.322646][ T6438] RIP: 0033:0x7fdb8319c629
[  340.322664][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.322678][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.322698][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.322710][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.322722][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.322733][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.322744][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.322777][ T6438]  </TASK>
[  340.322785][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.439317][ T6616] batman_adv: batadv0: Adding interface: batadv_slave_1
[  340.462928][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.462956][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.462967][ T6438] Call Trace:
[  340.462975][ T6438]  <TASK>
[  340.462982][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.463014][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.463047][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.463086][ T6438]  __submit_merged_bio+0x256/0x700
[  340.463118][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.463181][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.463212][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.463246][ T6438]  do_write_page+0x40f/0xac0
[  340.463276][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.463302][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.463341][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.463374][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.463407][ T6438]  ? release_pages+0x56c/0x5a0
[  340.463437][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  340.463481][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  340.463527][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.463557][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  340.463582][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  340.463609][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  340.463628][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.463688][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  340.463720][ T6438]  ? kernel_text_address+0xa5/0xe0
[  340.463774][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.463821][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  340.463864][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  340.463885][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
** 3 printk messages dropped **
[  340.463994][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
** 28 printk messages dropped **
[  340.483783][ T6616] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[  340.486463][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.486486][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.486497][ T6438] Call Trace:
[  340.486505][ T6438]  <TASK>
[  340.486513][ T6438]  dump_stack_lvl+0xe8/0x150
** 53 printk messages dropped **
[  340.488139][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.488150][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.488183][ T6438]  </TASK>
[  340.488285][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.509115][ T6616] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  340.514812][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  340.514836][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  340.514846][ T6438] Call Trace:
[  340.514855][ T6438]  <TASK>
[  340.514863][ T6438]  dump_stack_lvl+0xe8/0x150
[  340.514895][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  340.514927][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  340.514966][ T6438]  __submit_merged_bio+0x256/0x700
[  340.515000][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  340.515056][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  340.515088][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  340.515122][ T6438]  do_write_page+0x40f/0xac0
[  340.515153][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  340.515185][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  340.515225][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  340.515257][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
** 21 printk messages dropped **
[  340.516033][ T6438]  ? inode_dio_wait+0x7f/0x270
** 20 printk messages dropped **
[  340.516478][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.516490][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
** 60 printk messages dropped **
[  340.542244][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.542255][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
** 61 printk messages dropped **
[  340.672493][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.672504][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  340.672515][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  340.672548][ T6438]  </TASK>
[  340.672557][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  340.676525][ T6613] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
** 54 printk messages dropped **
[  340.682158][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.682177][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
** 60 printk messages dropped **
[  340.714205][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.714220][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.714239][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
** 61 printk messages dropped **
[  340.772062][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.772082][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
** 61 printk messages dropped **
[  340.822948][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  340.822967][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  340.822980][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  340.822991][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  340.823002][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
** 1 printk messages dropped **
[  340.823046][ T6438]  </TASK>
** 54 printk messages dropped **
[  340.839605][ T6438] RIP: 0033:0x7fdb8319c629
[  340.839623][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  340.839638][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
** 58 printk messages dropped **
[  340.855529][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.855552][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
** 61 printk messages dropped **
[  340.899344][ T6438]  ? clear_bhb_loop+0x40/0x90
[  340.899366][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
** 60 printk messages dropped **
[  341.018656][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.018674][ T6438]  ? clear_bhb_loop+0x40/0x90
[  341.018697][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
** 59 printk messages dropped **
[  341.045890][ T6438]  ? trace_irq_disable+0x3b/0x150
[  341.045905][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.045923][ T6438]  ? clear_bhb_loop+0x40/0x90
[  341.045945][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.045962][ T6438] RIP: 0033:0x7fdb8319c629
[  341.045980][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
** 57 printk messages dropped **
[  341.060632][ T6438]  ? trace_irq_disable+0x3b/0x150
[  341.060647][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
** 1 printk messages dropped **
[  341.060689][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.060706][ T6438] RIP: 0033:0x7fdb8319c629
** 56 printk messages dropped **
[  341.089221][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  341.089246][ T6438]  do_syscall_64+0x14d/0xf80
[  341.089267][ T6438]  ? trace_irq_disable+0x3b/0x150
[  341.089283][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.089302][ T6438]  ? clear_bhb_loop+0x40/0x90
[  341.089325][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.089343][ T6438] RIP: 0033:0x7fdb8319c629
[  341.089361][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  341.089376][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  341.089394][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  341.089407][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  341.089418][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  341.089429][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  341.089440][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  341.089472][ T6438]  </TASK>
[  341.089481][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.067400][   T30] INFO: task syz.6.23:6459 blocked for more than 143 seconds.
[  344.087176][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.087201][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.087212][ T6438] Call Trace:
[  344.087220][ T6438]  <TASK>
[  344.087228][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.087260][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.087293][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.087333][ T6438]  __submit_merged_bio+0x256/0x700
[  344.087365][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.087420][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.087451][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.087486][ T6438]  do_write_page+0x40f/0xac0
[  344.087516][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.087549][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.087590][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.087621][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.087655][ T6438]  ? release_pages+0x56c/0x5a0
[  344.087687][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.087731][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.087778][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.087808][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.087832][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.087860][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.087879][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.087938][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.087971][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.088024][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.088072][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.088115][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.088136][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.088155][ T6438]  do_writepages+0x32e/0x550
[  344.088191][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.088215][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.088246][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.088313][ T6438]  ? down_write+0x16d/0x200
[  344.088338][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.088375][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.088396][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.088424][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.088452][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.088475][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.088499][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.088532][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.088551][ T6438]  ? __fget_files+0x2a/0x420
[  344.088581][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.088599][ T6438]  ? __fget_files+0x2a/0x420
[  344.088633][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.088658][ T6438]  do_syscall_64+0x14d/0xf80
[  344.088680][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.088696][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.088714][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.088737][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.088755][ T6438] RIP: 0033:0x7fdb8319c629
[  344.088774][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.088789][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.088807][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.088820][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.088831][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.088842][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.088853][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.088886][ T6438]  </TASK>
[  344.088894][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.095612][   T30]       Not tainted syzkaller #0
[  344.096789][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.096810][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.096821][ T6438] Call Trace:
[  344.096829][ T6438]  <TASK>
[  344.096838][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.096868][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.096900][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.096941][ T6438]  __submit_merged_bio+0x256/0x700
[  344.096973][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.097025][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.097055][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.097089][ T6438]  do_write_page+0x40f/0xac0
[  344.097117][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.097142][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.097180][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.097211][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.097243][ T6438]  ? release_pages+0x56c/0x5a0
[  344.097271][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.097313][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.097357][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.097386][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.097410][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.097436][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.097455][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.097509][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.097546][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.097594][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.097638][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.097677][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.097698][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.097717][ T6438]  do_writepages+0x32e/0x550
[  344.097751][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.097774][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.097804][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.097865][ T6438]  ? down_write+0x16d/0x200
[  344.097890][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.097925][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.097946][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.097973][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.098001][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.098022][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.098046][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.098072][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.098091][ T6438]  ? __fget_files+0x2a/0x420
[  344.098120][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.098138][ T6438]  ? __fget_files+0x2a/0x420
[  344.098170][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.098194][ T6438]  do_syscall_64+0x14d/0xf80
[  344.098217][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.098233][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.098252][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.098273][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.098291][ T6438] RIP: 0033:0x7fdb8319c629
[  344.098310][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.098324][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.098343][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.098356][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.098367][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.098378][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.098389][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.098419][ T6438]  </TASK>
[  344.098570][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.117214][   T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  344.197236][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.197262][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.197273][ T6438] Call Trace:
[  344.197281][ T6438]  <TASK>
[  344.197289][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.197321][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.197353][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.197389][ T6438]  __submit_merged_bio+0x256/0x700
[  344.197420][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.197471][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.197501][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.197567][ T6438]  do_write_page+0x40f/0xac0
[  344.197596][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.197621][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.197658][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.197691][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.197723][ T6438]  ? release_pages+0x56c/0x5a0
[  344.197751][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.197792][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.197837][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.197865][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.197889][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.197916][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.197934][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.197989][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.198019][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.198067][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.198112][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.198151][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.198171][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.198191][ T6438]  do_writepages+0x32e/0x550
[  344.198224][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.198248][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.198278][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.198340][ T6438]  ? down_write+0x16d/0x200
[  344.198365][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.198400][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.198433][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.198461][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.198488][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.198515][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.198538][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.198564][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.198583][ T6438]  ? __fget_files+0x2a/0x420
[  344.198611][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.198629][ T6438]  ? __fget_files+0x2a/0x420
[  344.198662][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.198686][ T6438]  do_syscall_64+0x14d/0xf80
[  344.198707][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.198722][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.198740][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.198761][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.198779][ T6438] RIP: 0033:0x7fdb8319c629
[  344.198797][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.198812][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.198830][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.198843][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.198854][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.198864][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.198875][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.198906][ T6438]  </TASK>
[  344.198913][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.201794][   T30] task:syz.6.23        state:D
[  344.225228][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.225254][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.225265][ T6438] Call Trace:
[  344.225273][ T6438]  <TASK>
[  344.225281][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.225312][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.225345][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.225383][ T6438]  __submit_merged_bio+0x256/0x700
[  344.225415][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.225471][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.225502][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.225542][ T6438]  do_write_page+0x40f/0xac0
[  344.225572][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.225598][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.225637][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.225670][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.225703][ T6438]  ? release_pages+0x56c/0x5a0
[  344.225733][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.225777][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.225824][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.225854][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.225879][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.225906][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.225926][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.225984][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.226017][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.226070][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.226118][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.226161][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.226182][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.226201][ T6438]  do_writepages+0x32e/0x550
[  344.226236][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.226260][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.226290][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.226357][ T6438]  ? down_write+0x16d/0x200
[  344.226381][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.226418][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.226439][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.226467][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.226496][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.226523][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.226546][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.226573][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.226592][ T6438]  ? __fget_files+0x2a/0x420
[  344.226621][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.226639][ T6438]  ? __fget_files+0x2a/0x420
[  344.226673][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.226697][ T6438]  do_syscall_64+0x14d/0xf80
[  344.226719][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.226734][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.226753][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.226775][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.226792][ T6438] RIP: 0033:0x7fdb8319c629
[  344.226810][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.226825][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.226843][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.226856][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.226867][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.226878][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.226888][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.226922][ T6438]  </TASK>
[  344.232337][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.241862][   T30]  stack:28832 pid:6459  tgid:6437  ppid:6229   task_flags:0x400040 flags:0x00080002
[  344.244143][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.244166][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.244177][ T6438] Call Trace:
[  344.244184][ T6438]  <TASK>
[  344.244192][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.244224][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.244257][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.244296][ T6438]  __submit_merged_bio+0x256/0x700
[  344.244329][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.244385][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.244415][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.244451][ T6438]  do_write_page+0x40f/0xac0
[  344.244480][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.244512][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.244553][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.244585][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.244619][ T6438]  ? release_pages+0x56c/0x5a0
[  344.244650][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.244695][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.244743][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.244772][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.244797][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.244824][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.244843][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.244902][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.244935][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.244987][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.245034][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.245077][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.245098][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.245118][ T6438]  do_writepages+0x32e/0x550
[  344.245153][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.245178][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.245208][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.245275][ T6438]  ? down_write+0x16d/0x200
[  344.245301][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.245337][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.245357][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.245386][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.245413][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.245436][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.245460][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.245486][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.245510][ T6438]  ? __fget_files+0x2a/0x420
[  344.245540][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.245558][ T6438]  ? __fget_files+0x2a/0x420
[  344.245592][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.245617][ T6438]  do_syscall_64+0x14d/0xf80
[  344.245638][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.245654][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.245673][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.245695][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.245713][ T6438] RIP: 0033:0x7fdb8319c629
[  344.245731][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.245746][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.245764][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.245777][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.245788][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.245799][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.245810][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.245844][ T6438]  </TASK>
[  344.245852][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.248574][   T30] Call Trace:
[  344.259163][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.259187][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.259198][ T6438] Call Trace:
[  344.259206][ T6438]  <TASK>
[  344.259214][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.259245][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.259277][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.259316][ T6438]  __submit_merged_bio+0x256/0x700
[  344.259348][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.259404][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.259434][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.259469][ T6438]  do_write_page+0x40f/0xac0
[  344.259506][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.259533][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.259572][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.259605][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.259638][ T6438]  ? release_pages+0x56c/0x5a0
[  344.259666][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.259704][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.259748][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.259778][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.259804][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.259831][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.259851][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.259909][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.259943][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.259996][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.260044][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.260088][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.260109][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.260128][ T6438]  do_writepages+0x32e/0x550
[  344.260163][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.260188][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.260221][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.260288][ T6438]  ? down_write+0x16d/0x200
[  344.260313][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.260350][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.260369][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.260399][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.260427][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.260449][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.260472][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.260524][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.260545][ T6438]  ? __fget_files+0x2a/0x420
[  344.260574][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.260593][ T6438]  ? __fget_files+0x2a/0x420
[  344.260628][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.260652][ T6438]  do_syscall_64+0x14d/0xf80
[  344.260675][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.260690][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.260710][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.260735][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.260754][ T6438] RIP: 0033:0x7fdb8319c629
[  344.260771][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.260787][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.260805][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.260818][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.260829][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.260840][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.260851][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.260883][ T6438]  </TASK>
[  344.260891][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.265989][   T30]  <TASK>
[  344.275143][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.275166][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.275177][ T6438] Call Trace:
[  344.275184][ T6438]  <TASK>
[  344.275191][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.275222][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.275254][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.275291][ T6438]  __submit_merged_bio+0x256/0x700
[  344.275321][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.275373][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.275402][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.275435][ T6438]  do_write_page+0x40f/0xac0
[  344.275463][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.275488][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.275533][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.275564][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.275595][ T6438]  ? release_pages+0x56c/0x5a0
[  344.275625][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.275664][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.275709][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.275739][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.275763][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.275789][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.275808][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.275862][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.275893][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.275942][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.275985][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.276025][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.276045][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.276063][ T6438]  do_writepages+0x32e/0x550
[  344.276097][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.276121][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.276152][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.276214][ T6438]  ? down_write+0x16d/0x200
[  344.276239][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.276274][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.276294][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.276321][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.276349][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.276370][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.276393][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.276419][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.276439][ T6438]  ? __fget_files+0x2a/0x420
[  344.276467][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.276485][ T6438]  ? __fget_files+0x2a/0x420
[  344.276523][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.276547][ T6438]  do_syscall_64+0x14d/0xf80
[  344.276568][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.276583][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.276602][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.276624][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.276641][ T6438] RIP: 0033:0x7fdb8319c629
[  344.276659][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.276674][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.276693][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.276705][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.276716][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.276727][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.276737][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.276768][ T6438]  </TASK>
[  344.276775][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.297490][   T30]  __schedule+0x1585/0x5340
[  344.315421][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.315445][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.315457][ T6438] Call Trace:
[  344.315465][ T6438]  <TASK>
[  344.315473][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.315510][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.315543][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.315581][ T6438]  __submit_merged_bio+0x256/0x700
[  344.315612][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.315668][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.315699][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.315734][ T6438]  do_write_page+0x40f/0xac0
[  344.315762][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.315788][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.315828][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.315859][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.315892][ T6438]  ? release_pages+0x56c/0x5a0
[  344.315922][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.315966][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.316014][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.316043][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.316068][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.316095][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.316113][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.316170][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.316203][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.316255][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.316303][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.316345][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.316366][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.316385][ T6438]  do_writepages+0x32e/0x550
[  344.316420][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.316445][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.316477][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.316553][ T6438]  ? down_write+0x16d/0x200
[  344.316578][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.316614][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.316635][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.316665][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.316692][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.316714][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.316738][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.316765][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.316784][ T6438]  ? __fget_files+0x2a/0x420
[  344.316814][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.316832][ T6438]  ? __fget_files+0x2a/0x420
[  344.316867][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.316891][ T6438]  do_syscall_64+0x14d/0xf80
[  344.316913][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.316933][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.316952][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.316974][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.316992][ T6438] RIP: 0033:0x7fdb8319c629
[  344.317010][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.317025][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.317044][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.317056][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.317067][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.317077][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.317088][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.317121][ T6438]  </TASK>
[  344.325425][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.327195][   T30]  ? futex_unqueue+0x22/0x240
[  344.332512][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.332536][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.332547][ T6438] Call Trace:
[  344.332555][ T6438]  <TASK>
[  344.332563][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.332593][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.332626][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.332664][ T6438]  __submit_merged_bio+0x256/0x700
[  344.332695][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.332751][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.332782][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.332816][ T6438]  do_write_page+0x40f/0xac0
[  344.332845][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.332878][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.332918][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.332959][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.332993][ T6438]  ? release_pages+0x56c/0x5a0
[  344.333023][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.333066][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.333113][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.333143][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.333168][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.333196][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.333214][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.333273][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.333306][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.333358][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.333405][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.333457][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.333478][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.333498][ T6438]  do_writepages+0x32e/0x550
[  344.333533][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.333557][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.333589][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.333656][ T6438]  ? down_write+0x16d/0x200
[  344.333680][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.333717][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.333737][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.333766][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.333795][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.333817][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.333841][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.333868][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.333888][ T6438]  ? __fget_files+0x2a/0x420
[  344.333917][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.333935][ T6438]  ? __fget_files+0x2a/0x420
[  344.333969][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.333993][ T6438]  do_syscall_64+0x14d/0xf80
[  344.334025][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.334041][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.334060][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.334083][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.334101][ T6438] RIP: 0033:0x7fdb8319c629
[  344.334120][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.334135][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.334153][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.334166][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.334177][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.334188][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.334199][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.334232][ T6438]  </TASK>
[  344.334239][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.337977][   T30]  ? futex_unqueue+0x22/0x240
[  344.344108][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.344134][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.344145][ T6438] Call Trace:
[  344.344153][ T6438]  <TASK>
[  344.344160][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.344199][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.344231][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.344270][ T6438]  __submit_merged_bio+0x256/0x700
[  344.344302][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.344358][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.344388][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.344428][ T6438]  do_write_page+0x40f/0xac0
[  344.344457][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.344484][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.344524][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.344556][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.344600][ T6438]  ? release_pages+0x56c/0x5a0
[  344.344631][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.344674][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.344721][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.344751][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.344776][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.344804][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.344823][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.344883][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.344915][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.344968][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.345016][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.345059][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.345080][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.345099][ T6438]  do_writepages+0x32e/0x550
[  344.345134][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.345158][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.345188][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.345254][ T6438]  ? down_write+0x16d/0x200
[  344.345279][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.345316][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.345335][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.345363][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.345391][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.345419][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.345443][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.345470][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.345489][ T6438]  ? __fget_files+0x2a/0x420
[  344.345518][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.345536][ T6438]  ? __fget_files+0x2a/0x420
[  344.345570][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.345595][ T6438]  do_syscall_64+0x14d/0xf80
[  344.345617][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.345633][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.345652][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.345674][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.345692][ T6438] RIP: 0033:0x7fdb8319c629
[  344.345711][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.345725][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.345743][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.345756][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.345767][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.345777][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.345788][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.345822][ T6438]  </TASK>
[  344.345830][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.358454][   T30]  ? __pfx___schedule+0x10/0x10
[  344.358495][   T30]  ? schedule+0x90/0x360
[  344.358521][   T30]  schedule+0x164/0x360
[  344.358544][   T30]  schedule_preempt_disabled+0x13/0x30
[  344.358567][   T30]  rwsem_down_write_slowpath+0x899/0x1040
[  344.358593][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  344.358616][   T30]  ? rwsem_down_write_slowpath+0x471/0x1040
[  344.358639][   T30]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  344.358656][   T30]  ? aa_file_perm+0x50e/0x15e0
[  344.368922][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.368946][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.368957][ T6438] Call Trace:
[  344.368965][ T6438]  <TASK>
[  344.368973][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.369004][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.369037][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.369075][ T6438]  __submit_merged_bio+0x256/0x700
[  344.369107][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.369162][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.369192][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.369226][ T6438]  do_write_page+0x40f/0xac0
[  344.369256][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.369281][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.369321][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.369353][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.369385][ T6438]  ? release_pages+0x56c/0x5a0
[  344.369422][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.369466][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.369518][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.369556][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.369580][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.369608][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.369627][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.369693][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.369722][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.369769][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.369813][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.369856][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.369878][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.369897][ T6438]  do_writepages+0x32e/0x550
[  344.369933][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.369957][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.369988][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.370057][ T6438]  ? down_write+0x16d/0x200
[  344.370082][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.370119][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.370139][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.370168][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.370196][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.370218][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.370242][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.370269][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.370288][ T6438]  ? __fget_files+0x2a/0x420
[  344.370318][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.370336][ T6438]  ? __fget_files+0x2a/0x420
[  344.370370][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.370395][ T6438]  do_syscall_64+0x14d/0xf80
[  344.370424][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.370440][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.370458][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.370480][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.370497][ T6438] RIP: 0033:0x7fdb8319c629
[  344.370524][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.370538][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.370557][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.370570][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.370581][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.370591][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.370603][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.370636][ T6438]  </TASK>
[  344.370644][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.374712][   T30]  ? aa_file_perm+0x192/0x15e0
[  344.380541][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.380566][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.380579][ T6438] Call Trace:
[  344.380587][ T6438]  <TASK>
[  344.380595][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.380626][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.380660][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.380699][ T6438]  __submit_merged_bio+0x256/0x700
[  344.380731][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.380787][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.380818][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.380854][ T6438]  do_write_page+0x40f/0xac0
[  344.380885][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.380910][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.380950][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.380983][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.381016][ T6438]  ? release_pages+0x56c/0x5a0
[  344.381046][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.381090][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.381136][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.381167][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.381191][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.381219][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.381239][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.381298][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.381331][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.381384][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.381438][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.381481][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.381502][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.381522][ T6438]  do_writepages+0x32e/0x550
[  344.381558][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.381582][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.381613][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.381680][ T6438]  ? down_write+0x16d/0x200
[  344.381705][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.381742][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.381762][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.381792][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.381819][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.381841][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.381866][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.381893][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.381912][ T6438]  ? __fget_files+0x2a/0x420
[  344.381942][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.381960][ T6438]  ? __fget_files+0x2a/0x420
[  344.381994][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.382019][ T6438]  do_syscall_64+0x14d/0xf80
[  344.382040][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.382056][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.382075][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.382098][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.382116][ T6438] RIP: 0033:0x7fdb8319c629
[  344.382135][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.382149][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.382168][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.382181][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.382192][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.382203][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.382214][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.382247][ T6438]  </TASK>
[  344.382255][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.397780][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  344.401803][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.401825][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.401837][ T6438] Call Trace:
[  344.401844][ T6438]  <TASK>
[  344.401852][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.401881][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.401914][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.401953][ T6438]  __submit_merged_bio+0x256/0x700
[  344.401985][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.402041][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.402071][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.402106][ T6438]  do_write_page+0x40f/0xac0
[  344.402136][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.402162][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.402201][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.402234][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.402266][ T6438]  ? release_pages+0x56c/0x5a0
[  344.402297][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.402341][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.402388][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.402424][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.402449][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.402477][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.402496][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.402556][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.402589][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.402642][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.402689][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.402732][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.402753][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.402773][ T6438]  do_writepages+0x32e/0x550
[  344.402808][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.402833][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.402864][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.402931][ T6438]  ? down_write+0x16d/0x200
[  344.402956][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.402993][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.403013][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.403043][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.403071][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.403094][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.403117][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.403144][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.403164][ T6438]  ? __fget_files+0x2a/0x420
[  344.403193][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.403211][ T6438]  ? __fget_files+0x2a/0x420
[  344.403245][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.403270][ T6438]  do_syscall_64+0x14d/0xf80
[  344.403291][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.403307][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.403326][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.403348][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.403366][ T6438] RIP: 0033:0x7fdb8319c629
[  344.403384][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.403398][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.403433][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.403446][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.403457][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.403468][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.403479][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.403512][ T6438]  </TASK>
[  344.403520][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.406864][   T30]  down_write+0x1bc/0x200
[  344.411815][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.411837][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.411848][ T6438] Call Trace:
[  344.411856][ T6438]  <TASK>
[  344.411863][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.411891][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.411922][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.411958][ T6438]  __submit_merged_bio+0x256/0x700
[  344.411988][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.412039][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.412068][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.412102][ T6438]  do_write_page+0x40f/0xac0
[  344.412130][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.412155][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.412192][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.412223][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.412254][ T6438]  ? release_pages+0x56c/0x5a0
[  344.412282][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.412323][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.412368][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.412395][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.412426][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.412454][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.412472][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.412526][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.412557][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.412605][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.412650][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.412689][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.412709][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.412728][ T6438]  do_writepages+0x32e/0x550
[  344.412762][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.412785][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.412815][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.412877][ T6438]  ? down_write+0x16d/0x200
[  344.412902][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.412936][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.412956][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.412984][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.413010][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.413032][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.413054][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.413080][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.413099][ T6438]  ? __fget_files+0x2a/0x420
[  344.413128][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.413146][ T6438]  ? __fget_files+0x2a/0x420
[  344.413178][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.413201][ T6438]  do_syscall_64+0x14d/0xf80
[  344.413222][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.413238][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.413256][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.413277][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.413294][ T6438] RIP: 0033:0x7fdb8319c629
[  344.413311][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.413325][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.413344][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.413356][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.413367][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.413378][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.413389][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.413425][ T6438]  </TASK>
[  344.413433][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.434910][   T30]  ? __pfx_down_write+0x10/0x10
[  344.438516][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.438540][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.438551][ T6438] Call Trace:
[  344.438559][ T6438]  <TASK>
[  344.438568][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.438597][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.438629][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.438670][ T6438]  __submit_merged_bio+0x256/0x700
[  344.438701][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.438758][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.438789][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.438824][ T6438]  do_write_page+0x40f/0xac0
[  344.438854][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.438879][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.438920][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.438952][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.438985][ T6438]  ? release_pages+0x56c/0x5a0
[  344.439015][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.439059][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.439107][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.439137][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.439161][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.439189][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.439208][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.439267][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.439301][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.439355][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.439403][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.439447][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.439468][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.439493][ T6438]  do_writepages+0x32e/0x550
[  344.439529][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.439554][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.439584][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.439652][ T6438]  ? down_write+0x16d/0x200
[  344.439677][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.439713][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.439733][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.439763][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.439790][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.439813][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.439837][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.439864][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.439883][ T6438]  ? __fget_files+0x2a/0x420
[  344.439913][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.439931][ T6438]  ? __fget_files+0x2a/0x420
[  344.439965][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.439989][ T6438]  do_syscall_64+0x14d/0xf80
[  344.440011][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.440026][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.440044][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.440067][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.440084][ T6438] RIP: 0033:0x7fdb8319c629
[  344.440103][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.440117][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.440136][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.440149][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.440160][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.440171][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.440182][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.440215][ T6438]  </TASK>
[  344.440223][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.458320][   T30]  f2fs_fallocate+0x24e/0x9b0
[  344.462937][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.462962][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.462973][ T6438] Call Trace:
[  344.462981][ T6438]  <TASK>
[  344.462989][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.463019][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.463052][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.463091][ T6438]  __submit_merged_bio+0x256/0x700
[  344.463123][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.463178][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.463210][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.463244][ T6438]  do_write_page+0x40f/0xac0
[  344.463274][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.463300][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.463340][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.463372][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.463406][ T6438]  ? release_pages+0x56c/0x5a0
[  344.463435][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.463486][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.463533][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.463563][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.463588][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.463615][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.463634][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.463693][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.463726][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.463779][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.463827][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.463875][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.463896][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.463915][ T6438]  do_writepages+0x32e/0x550
[  344.463953][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.463978][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.464009][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.464075][ T6438]  ? down_write+0x16d/0x200
[  344.464101][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.464137][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.464156][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.464186][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.464214][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.464236][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.464259][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.464287][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.464306][ T6438]  ? __fget_files+0x2a/0x420
[  344.464335][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.464353][ T6438]  ? __fget_files+0x2a/0x420
[  344.464388][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.464412][ T6438]  do_syscall_64+0x14d/0xf80
[  344.464434][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.464449][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.464468][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.464496][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.464514][ T6438] RIP: 0033:0x7fdb8319c629
[  344.464532][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.464546][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.464565][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.464578][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.464589][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.464600][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.464611][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.464643][ T6438]  </TASK>
[  344.464651][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.480619][   T30]  vfs_fallocate+0x669/0x7e0
[  344.485169][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.485194][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.485204][ T6438] Call Trace:
[  344.485212][ T6438]  <TASK>
[  344.485220][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.485250][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.485283][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.485323][ T6438]  __submit_merged_bio+0x256/0x700
[  344.485355][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.485411][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.485441][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.485476][ T6438]  do_write_page+0x40f/0xac0
[  344.485506][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.485531][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.485571][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.485604][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.485637][ T6438]  ? release_pages+0x56c/0x5a0
[  344.485673][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.485719][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.485766][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.485797][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.485822][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.485849][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.485868][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.485928][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.485961][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.486015][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.486064][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.486108][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.486129][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.486148][ T6438]  do_writepages+0x32e/0x550
[  344.486184][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.486208][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.486239][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.486306][ T6438]  ? down_write+0x16d/0x200
[  344.486331][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.486369][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.486389][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.486418][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.486446][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.486468][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.486492][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.486519][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.486538][ T6438]  ? __fget_files+0x2a/0x420
[  344.486568][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.486586][ T6438]  ? __fget_files+0x2a/0x420
[  344.486620][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.486645][ T6438]  do_syscall_64+0x14d/0xf80
[  344.486672][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.486687][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.486706][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.486728][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.486746][ T6438] RIP: 0033:0x7fdb8319c629
[  344.486765][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.486778][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.486798][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.486811][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.486821][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.486832][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.486843][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.486877][ T6438]  </TASK>
[  344.486884][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.490478][   T30]  ? __fget_files+0x2a/0x420
[  344.509201][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.509227][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.509238][ T6438] Call Trace:
[  344.509245][ T6438]  <TASK>
[  344.509253][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.509283][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.509316][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.509354][ T6438]  __submit_merged_bio+0x256/0x700
[  344.509387][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.509442][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.509474][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.509508][ T6438]  do_write_page+0x40f/0xac0
[  344.509536][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.509562][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.509603][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.509635][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.509674][ T6438]  ? release_pages+0x56c/0x5a0
[  344.509705][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.509750][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.509797][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.509827][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.509852][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.509880][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.509899][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.509958][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.509991][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.510044][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.510091][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.510134][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.510155][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.510175][ T6438]  do_writepages+0x32e/0x550
[  344.510210][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.510235][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.510265][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.510332][ T6438]  ? down_write+0x16d/0x200
[  344.510357][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.510395][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.510414][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.510444][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.510473][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.510495][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.510518][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.510545][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.510564][ T6438]  ? __fget_files+0x2a/0x420
[  344.510594][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.510612][ T6438]  ? __fget_files+0x2a/0x420
[  344.510646][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.510676][ T6438]  do_syscall_64+0x14d/0xf80
[  344.510698][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.510714][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.510732][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.510754][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.510772][ T6438] RIP: 0033:0x7fdb8319c629
[  344.510791][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.510804][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.510824][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.510836][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.510847][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.510858][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.510869][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.510903][ T6438]  </TASK>
[  344.510911][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.525214][   T30]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.533185][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.533208][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.533219][ T6438] Call Trace:
[  344.533226][ T6438]  <TASK>
[  344.533235][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.533264][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.533297][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.533335][ T6438]  __submit_merged_bio+0x256/0x700
[  344.533367][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.533425][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.533457][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.533491][ T6438]  do_write_page+0x40f/0xac0
[  344.533521][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.533546][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.533586][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.533619][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.533658][ T6438]  ? release_pages+0x56c/0x5a0
[  344.533691][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.533736][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.533783][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.533813][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.533837][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.533865][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.533883][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.533942][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.533975][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.534027][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.534075][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.534117][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.534138][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.534158][ T6438]  do_writepages+0x32e/0x550
[  344.534192][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.534216][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.534247][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.534313][ T6438]  ? down_write+0x16d/0x200
[  344.534339][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.534377][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.534397][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.534425][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.534453][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.534476][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.534499][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.534527][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.534545][ T6438]  ? __fget_files+0x2a/0x420
[  344.534575][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.534593][ T6438]  ? __fget_files+0x2a/0x420
[  344.534627][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.534658][ T6438]  do_syscall_64+0x14d/0xf80
[  344.534679][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.534695][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.534714][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.534736][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.534754][ T6438] RIP: 0033:0x7fdb8319c629
[  344.534772][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.534786][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.534805][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.534818][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.534829][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.534840][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.534851][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.534883][ T6438]  </TASK>
[  344.534891][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.550407][   T30]  ? __fget_files+0x2a/0x420
[  344.568911][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.568938][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.568948][ T6438] Call Trace:
[  344.568956][ T6438]  <TASK>
[  344.568964][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.568995][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.569024][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.569063][ T6438]  __submit_merged_bio+0x256/0x700
[  344.569095][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.569151][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.569181][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.569217][ T6438]  do_write_page+0x40f/0xac0
[  344.569246][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.569271][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.569311][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.569344][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.569376][ T6438]  ? release_pages+0x56c/0x5a0
[  344.569405][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.569449][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.569496][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.569526][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.569551][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.569578][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.569597][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.569663][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.569695][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.569749][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.569796][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.569839][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.569862][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.569883][ T6438]  do_writepages+0x32e/0x550
[  344.569919][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.569945][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.569976][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.570045][ T6438]  ? down_write+0x16d/0x200
[  344.570071][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.570109][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.570129][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.570160][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.570188][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.570211][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.570236][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.570264][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.570285][ T6438]  ? __fget_files+0x2a/0x420
[  344.570316][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.570334][ T6438]  ? __fget_files+0x2a/0x420
[  344.570369][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.570394][ T6438]  do_syscall_64+0x14d/0xf80
[  344.570417][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.570434][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.570453][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.570476][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.570495][ T6438] RIP: 0033:0x7fdb8319c629
[  344.570515][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.570530][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.570549][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.570562][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.570574][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.570586][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.570598][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.570632][ T6438]  </TASK>
[  344.570640][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.582943][   T30]  __x64_sys_fallocate+0xc0/0x110
[  344.583924][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.583946][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.583956][ T6438] Call Trace:
[  344.583964][ T6438]  <TASK>
[  344.583971][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.584000][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.584032][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.584071][ T6438]  __submit_merged_bio+0x256/0x700
[  344.584102][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.584158][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.584189][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.584224][ T6438]  do_write_page+0x40f/0xac0
[  344.584253][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.584278][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.584318][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.584351][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.584384][ T6438]  ? release_pages+0x56c/0x5a0
[  344.584412][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.584457][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.584503][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.584534][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.584559][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.584586][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.584605][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.584683][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.584724][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.584778][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.584825][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.584869][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.584890][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.584909][ T6438]  do_writepages+0x32e/0x550
[  344.584944][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.584969][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.584999][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.585066][ T6438]  ? down_write+0x16d/0x200
[  344.585092][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.585129][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.585150][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.585187][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.585215][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.585246][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.585269][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.585296][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.585315][ T6438]  ? __fget_files+0x2a/0x420
[  344.585346][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.585364][ T6438]  ? __fget_files+0x2a/0x420
[  344.585396][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.585421][ T6438]  do_syscall_64+0x14d/0xf80
[  344.585443][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.585459][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.585478][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.585500][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.585518][ T6438] RIP: 0033:0x7fdb8319c629
[  344.585536][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.585550][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.585569][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.585582][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.585592][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.585603][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.585614][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.585652][ T6438]  </TASK>
[  344.585660][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.599082][   T30]  do_syscall_64+0x14d/0xf80
[  344.600380][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.600401][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.600412][ T6438] Call Trace:
[  344.600420][ T6438]  <TASK>
[  344.600428][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.600456][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.600487][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.600523][ T6438]  __submit_merged_bio+0x256/0x700
[  344.600555][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.600607][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.600636][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.600675][ T6438]  do_write_page+0x40f/0xac0
[  344.600702][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.600728][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.600767][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.600798][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.600830][ T6438]  ? release_pages+0x56c/0x5a0
[  344.600859][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.600901][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.600945][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.600974][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.600999][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.601025][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.601044][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.601098][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.601128][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.601177][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.601221][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.601260][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.601281][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.601301][ T6438]  do_writepages+0x32e/0x550
[  344.601334][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.601357][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.601386][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.601447][ T6438]  ? down_write+0x16d/0x200
[  344.601471][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.601506][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.601526][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.601553][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.601580][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.601602][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.601624][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.601656][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.601675][ T6438]  ? __fget_files+0x2a/0x420
[  344.601704][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.601721][ T6438]  ? __fget_files+0x2a/0x420
[  344.601754][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.601778][ T6438]  do_syscall_64+0x14d/0xf80
[  344.601799][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.601814][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.601833][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.601855][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.601873][ T6438] RIP: 0033:0x7fdb8319c629
[  344.601891][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.601905][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.601923][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.601935][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.601946][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.601957][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.601968][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.601998][ T6438]  </TASK>
[  344.602006][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.605004][   T30]  ? trace_irq_disable+0x3b/0x150
[  344.627275][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.627299][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.627311][ T6438] Call Trace:
[  344.627318][ T6438]  <TASK>
[  344.627326][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.627357][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.627389][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.627422][ T6438]  __submit_merged_bio+0x256/0x700
[  344.627454][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.627509][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.627540][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.627575][ T6438]  do_write_page+0x40f/0xac0
[  344.627604][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.627629][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.627676][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.627709][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.627742][ T6438]  ? release_pages+0x56c/0x5a0
[  344.627772][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.627816][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.627863][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.627893][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.627918][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.627946][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.627965][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.628023][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.628056][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.628109][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.628157][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.628200][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.628220][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.628240][ T6438]  do_writepages+0x32e/0x550
[  344.628275][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.628300][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.628330][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.628397][ T6438]  ? down_write+0x16d/0x200
[  344.628422][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.628458][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.628478][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.628507][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.628535][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.628557][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.628580][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.628607][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.628627][ T6438]  ? __fget_files+0x2a/0x420
[  344.628661][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.628679][ T6438]  ? __fget_files+0x2a/0x420
[  344.628712][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.628737][ T6438]  do_syscall_64+0x14d/0xf80
[  344.628758][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.628774][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.628792][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.628814][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.628831][ T6438] RIP: 0033:0x7fdb8319c629
[  344.628849][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.628863][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.628882][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.628895][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.628905][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.628916][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.628927][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.628960][ T6438]  </TASK>
[  344.628968][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.632200][   T30]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.644377][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.644401][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.644412][ T6438] Call Trace:
[  344.644420][ T6438]  <TASK>
[  344.644428][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.644459][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.644492][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.644531][ T6438]  __submit_merged_bio+0x256/0x700
[  344.644563][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.644619][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.644656][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.644690][ T6438]  do_write_page+0x40f/0xac0
[  344.644720][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.644746][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.644786][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.644818][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.644851][ T6438]  ? release_pages+0x56c/0x5a0
[  344.644881][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.644925][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.644972][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.645002][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.645026][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.645054][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.645073][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.645132][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.645164][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.645216][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.645265][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.645308][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.645329][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.645349][ T6438]  do_writepages+0x32e/0x550
[  344.645383][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.645407][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.645438][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.645504][ T6438]  ? down_write+0x16d/0x200
[  344.645529][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.645566][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.645585][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.645615][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.645648][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.645670][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.645694][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.645721][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.645740][ T6438]  ? __fget_files+0x2a/0x420
[  344.645770][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.645787][ T6438]  ? __fget_files+0x2a/0x420
[  344.645822][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.645847][ T6438]  do_syscall_64+0x14d/0xf80
[  344.645869][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.645884][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.645903][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.645925][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.645943][ T6438] RIP: 0033:0x7fdb8319c629
[  344.645962][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.645977][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.645996][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.646008][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.646019][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.646030][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.646041][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.646074][ T6438]  </TASK>
[  344.646081][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.650974][   T30]  ? clear_bhb_loop+0x40/0x90
[  344.659851][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.659875][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.659886][ T6438] Call Trace:
[  344.659894][ T6438]  <TASK>
[  344.659902][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.659932][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.659965][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.660004][ T6438]  __submit_merged_bio+0x256/0x700
[  344.660036][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.660091][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.660121][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.660156][ T6438]  do_write_page+0x40f/0xac0
[  344.660185][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.660210][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.660251][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.660284][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.660316][ T6438]  ? release_pages+0x56c/0x5a0
[  344.660346][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.660390][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.660436][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.660465][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.660490][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.660517][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.660536][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.660597][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.660629][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.660689][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.660737][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.660781][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.660802][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.660821][ T6438]  do_writepages+0x32e/0x550
[  344.660856][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.660880][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.660911][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.660977][ T6438]  ? down_write+0x16d/0x200
[  344.661002][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.661038][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.661058][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.661087][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.661115][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.661137][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.661160][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.661188][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.661207][ T6438]  ? __fget_files+0x2a/0x420
[  344.661236][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.661254][ T6438]  ? __fget_files+0x2a/0x420
[  344.661289][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.661313][ T6438]  do_syscall_64+0x14d/0xf80
[  344.661334][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.661350][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.661369][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.661391][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.661409][ T6438] RIP: 0033:0x7fdb8319c629
[  344.661426][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.661441][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.661459][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.661472][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.661483][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.661494][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.661505][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.661537][ T6438]  </TASK>
[  344.661545][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.665481][   T30]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.687222][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.687246][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.687257][ T6438] Call Trace:
[  344.687265][ T6438]  <TASK>
[  344.687273][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.687303][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.687336][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.687372][ T6438]  __submit_merged_bio+0x256/0x700
[  344.687402][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.687453][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.687483][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.687517][ T6438]  do_write_page+0x40f/0xac0
[  344.687545][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.687570][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.687608][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.687645][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.687677][ T6438]  ? release_pages+0x56c/0x5a0
[  344.687704][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.687742][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.687786][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.687816][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.687840][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.687866][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.687885][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.687940][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.687970][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.688018][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.688062][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.688102][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.688123][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.688141][ T6438]  do_writepages+0x32e/0x550
[  344.688175][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.688198][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.688228][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.688290][ T6438]  ? down_write+0x16d/0x200
[  344.688314][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.688349][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.688369][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.688396][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.688422][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.688444][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.688467][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.688493][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.688512][ T6438]  ? __fget_files+0x2a/0x420
[  344.688542][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.688560][ T6438]  ? __fget_files+0x2a/0x420
[  344.688592][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.688616][ T6438]  do_syscall_64+0x14d/0xf80
[  344.688644][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.688660][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.688679][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.688701][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.688718][ T6438] RIP: 0033:0x7fdb8319c629
[  344.688737][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.688752][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.688771][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629
[  344.688784][ T6438] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  344.688794][ T6438] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.688805][ T6438] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  344.688816][ T6438] R13: 00007fdb83416038 R14: 00007fdb83415fa0 R15: 00007ffd380386a8
[  344.688846][ T6438]  </TASK>
[  344.688854][ T6438] F2FS-fs (loop6): Stopped filesystem due to reason: 3
[  344.709882][   T30] RIP: 0033:0x7fdb8319c629
[  344.709910][   T30] RSP: 002b:00007fdb8408a028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.709931][   T30] RAX: ffffffffffffffda RBX: 00007fdb83416090 RCX: 00007fdb8319c629
[  344.709945][   T30] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000004
[  344.709958][   T30] RBP: 00007fdb83232b39 R08: 0000000000000000 R09: 0000000000000000
[  344.709972][   T30] R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
[  344.709984][   T30] R13: 00007fdb83416128 R14: 00007fdb83416090 R15: 00007ffd380386a8
[  344.710015][   T30]  </TASK>
[  344.710982][   T30] 
[  344.710982][   T30] Showing all locks held in the system:
[  344.724098][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.6.23 Not tainted syzkaller #0 PREEMPT(full) 
[  344.724122][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  344.724133][ T6438] Call Trace:
[  344.724141][ T6438]  <TASK>
[  344.724149][ T6438]  dump_stack_lvl+0xe8/0x150
[  344.724179][ T6438]  f2fs_handle_critical_error+0x37c/0x540
[  344.724212][ T6438]  f2fs_write_end_io+0xcdb/0xff0
[  344.724253][ T6438]  __submit_merged_bio+0x256/0x700
[  344.724284][ T6438]  f2fs_submit_page_write+0xec4/0x23e0
[  344.724342][ T6438]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  344.724372][ T6438]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  344.724407][ T6438]  do_write_page+0x40f/0xac0
[  344.724437][ T6438]  f2fs_outplace_write_data+0x11a/0x220
[  344.724463][ T6438]  f2fs_do_write_data_page+0x123b/0x16f0
[  344.724503][ T6438]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  344.724536][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.724569][ T6438]  ? release_pages+0x56c/0x5a0
[  344.724600][ T6438]  f2fs_write_single_data_page+0x906/0x18b0
[  344.724650][ T6438]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  344.724698][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.724729][ T6438]  ? folio_clear_dirty_for_io+0x573/0x710
[  344.724754][ T6438]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  344.724782][ T6438]  f2fs_write_data_pages+0x1a5b/0x35e0
[  344.724801][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.724862][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.724895][ T6438]  ? kernel_text_address+0xa5/0xe0
[  344.724949][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.724997][ T6438]  ? __lock_acquire+0x6b5/0x2cf0
[  344.725041][ T6438]  ? __free_frozen_pages+0x706/0xdb0
[  344.725063][ T6438]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  344.725082][ T6438]  do_writepages+0x32e/0x550
[  344.725118][ T6438]  ? do_raw_spin_unlock+0xf5/0x210
[  344.725143][ T6438]  filemap_write_and_wait_range+0x335/0x3f0
[  344.725173][ T6438]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  344.725242][ T6438]  ? down_write+0x16d/0x200
[  344.725267][ T6438]  ? __pfx_down_write+0x10/0x10
[  344.725305][ T6438]  f2fs_collapse_range+0x48f/0x530
[  344.725325][ T6438]  ? inode_dio_wait+0x7f/0x270
[  344.725355][ T6438]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  344.725383][ T6438]  ? mnt_put_write_access_file+0xc0/0x100
[  344.725406][ T6438]  ? file_update_time_flags+0x400/0x4a0
[  344.725429][ T6438]  f2fs_fallocate+0x54d/0x9b0
[  344.725457][ T6438]  vfs_fallocate+0x669/0x7e0
[  344.725476][ T6438]  ? __fget_files+0x2a/0x420
[  344.725506][ T6438]  ? __pfx_vfs_fallocate+0x10/0x10
[  344.725524][ T6438]  ? __fget_files+0x2a/0x420
[  344.725559][ T6438]  __x64_sys_fallocate+0xc0/0x110
[  344.725583][ T6438]  do_syscall_64+0x14d/0xf80
[  344.725605][ T6438]  ? trace_irq_disable+0x3b/0x150
[  344.725620][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.725643][ T6438]  ? clear_bhb_loop+0x40/0x90
[  344.725665][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.725683][ T6438] RIP: 0033:0x7fdb8319c629
[  344.725701][ T6438] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  344.725715][ T6438] RSP: 002b:00007fdb840ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  344.725735][ T6438] RAX: ffffffffffffffda RBX: 00007fdb83415fa0 RCX: 00007fdb8319c629