KASAN: use-after-free Read in f2fs_truncate_data_blocks_range

Status: upstream: reported C repro on 2023/05/12 15:50
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+33be3c5ec9ecadd6fe14@syzkaller.appspotmail.com
First crash: 1186d, last: 20d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (4)
Date Name Commit Repro Result
2023/08/11 android14-6.1 (ToT) d7dacaa439c7 C [report] KASAN: slab-out-of-bounds Read in f2fs_truncate_data_blocks_range
2023/05/12 lts (merge base) be100a8460e3 C [report] KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/12 upstream (ToT) 47a2ee5d4a0b C [report] KASAN: slab-use-after-free Read in f2fs_truncate_data_blocks_range
2023/08/11 upstream (ToT) 29d99aae13cf C Didn't crash
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-15 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range origin:lts 19 syz, C error 5 9d01h 347d 0/2 upstream: reported C repro on 2025/08/28 23:47
android-5-10 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range 19 syz, C error error 10 77d 1186d 0/2 upstream: reported C repro on 2023/05/12 18:24
android-54 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range 19 syz, C 3 472d 1187d 0/2 upstream: reported C repro on 2023/05/12 11:37
upstream KASAN: slab-use-after-free Read in f2fs_truncate_data_blocks_range f2fs 19 syz, C error 1 1146d 1142d 23/29 fixed on 2023/10/12 12:47
upstream KASAN: slab-out-of-bounds Read in f2fs_truncate_data_blocks_range f2fs 17 1 338d 334d 0/29 auto-obsoleted due to no activity on 2025/12/06 05:03
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2026/07/15 14:45 14m retest repro android14-6.1 log
2026/07/15 14:45 16m retest repro android14-6.1 log
2026/05/30 02:08 15m retest repro android14-6.1 log
2026/05/30 02:08 19m retest repro android14-6.1 log
2026/05/05 03:12 46m retest repro android14-6.1 report log
2026/05/05 03:12 17m retest repro android14-6.1 report log
2026/03/14 19:58 6m retest repro android14-6.1 error
▶ ▼ Fix bisection attempts (20)
Created Duration User Patch Repo Result
2025/05/06 23:35 5m bisect fix android14-6.1 error job log
2025/04/05 09:12 1h11m bisect fix android14-6.1 OK (0) job log log
2025/03/01 21:14 59m bisect fix android14-6.1 OK (0) job log log
2025/01/29 00:36 2h41m bisect fix android14-6.1 OK (0) job log log
2024/12/22 14:16 1h24m bisect fix android14-6.1 OK (0) job log log
2024/11/09 09:58 1h31m bisect fix android14-6.1 OK (0) job log log
2024/10/07 02:59 2h16m bisect fix android14-6.1 OK (0) job log log
2024/08/24 18:55 44m bisect fix android14-6.1 OK (0) job log log
2024/07/23 23:13 1h02m bisect fix android14-6.1 OK (0) job log log
2024/06/08 10:26 1h09m bisect fix android14-6.1 OK (0) job log log
2024/05/09 02:14 48m bisect fix android14-6.1 OK (0) job log log
2024/04/04 12:47 4h47m bisect fix android14-6.1 OK (0) job log log
2024/03/05 07:32 55m bisect fix android14-6.1 OK (0) job log log
2024/01/27 19:58 47m bisect fix android14-6.1 OK (0) job log log
2023/12/27 12:19 46m bisect fix android14-6.1 OK (0) job log log
2023/11/27 05:50 1h13m bisect fix android14-6.1 OK (0) job log log
2023/10/27 13:50 50m bisect fix android14-6.1 OK (0) job log log
2023/09/24 00:01 50m bisect fix android14-6.1 OK (0) job log log
2023/08/11 07:30 1h51m bisect fix android14-6.1 OK (0) job log log
2023/06/22 22:23 26m bisect fix android14-6.1 OK (0) job log log

Sample crash report:
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
==================================================================
BUG: KASAN: use-after-free in f2fs_truncate_data_blocks_range+0x714/0xef0 fs/f2fs/file.c:677
Read of size 4 at addr ffff88812dc4f000 by task syz.2.17/376

CPU: 0 PID: 376 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
 f2fs_truncate_data_blocks_range+0x714/0xef0 fs/f2fs/file.c:677
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>

Allocated by task 345:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 __kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:334
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3382 [inline]
 slab_alloc mm/slub.c:3392 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3399 [inline]
 kmem_cache_alloc+0x166/0x320 mm/slub.c:3408
 dst_alloc+0x16a/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3309
 ndisc_send_skb+0x2ad/0xcd0 net/ipv6/ndisc.c:493
 ndisc_send_ns+0xd4/0x160 net/ipv6/ndisc.c:671
 addrconf_dad_work+0x9d6/0x14a0 net/ipv6/addrconf.c:4245
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 13:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 kmem_cache_free+0x12d/0x300 mm/slub.c:3737
 dst_destroy+0x202/0x2e0 net/core/dst.c:124
 dst_destroy_rcu+0x19/0x20 net/core/dst.c:137
 rcu_do_batch+0x52b/0xc30 kernel/rcu/tree.c:2297
 rcu_core+0x486/0xf00 kernel/rcu/tree.c:2557
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2574
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
 run_ksoftirqd+0x28/0x30 kernel/softirq.c:1019
 smpboot_thread_fn+0x48c/0x8e0 kernel/smpboot.c:164
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46
 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 __call_rcu_common kernel/rcu/tree.c:2807 [inline]
 call_rcu+0xcf/0xf50 kernel/rcu/tree.c:2926
 call_rcu_hurry include/linux/rcupdate.h:117 [inline]
 dst_release+0x123/0x190 net/core/dst.c:181
 refdst_drop include/net/dst.h:256 [inline]
 skb_dst_drop include/net/dst.h:268 [inline]
 __dev_queue_xmit+0xa46/0x3540 net/core/dev.c:4337
 dev_queue_xmit include/linux/netdevice.h:3085 [inline]
 neigh_resolve_output+0x6ee/0x7f0 net/core/neighbour.c:1563
 neigh_output include/net/neighbour.h:552 [inline]
 ip6_finish_output2+0x1619/0x18b0 net/ipv6/ip6_output.c:138
 __ip6_finish_output net/ipv6/ip6_output.c:205 [inline]
 ip6_finish_output+0x60b/0xbe0 net/ipv6/ip6_output.c:216
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1fa/0x410 net/ipv6/ip6_output.c:237
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7c8/0xcd0 net/ipv6/ndisc.c:513
 ndisc_send_ns+0xd4/0x160 net/ipv6/ndisc.c:671
 addrconf_dad_work+0x9d6/0x14a0 net/ipv6/addrconf.c:4245
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88812dc4f000
 which belongs to the cache ip6_dst_cache of size 248
The buggy address is located 0 bytes inside of
 248-byte region [ffff88812dc4f000, ffff88812dc4f0f8)

The buggy address belongs to the physical page:
page:ffffea0004b713c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12dc4f
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff88810dc3f800
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 345, tgid 345 (kworker/0:3), ts 24038182263, free_ts 22951669156
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2672
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2679
 get_page_from_freelist+0x2ca9/0x2d20 mm/page_alloc.c:4586
 __alloc_pages+0x1fa/0x610 mm/page_alloc.c:5930
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3e0 mm/slub.c:2020
 ___slab_alloc+0x70f/0xb70 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 slab_alloc mm/slub.c:3392 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3399 [inline]
 kmem_cache_alloc+0x1a8/0x320 mm/slub.c:3408
 dst_alloc+0x16a/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3309
 ndisc_send_skb+0x2ad/0xcd0 net/ipv6/ndisc.c:493
 ndisc_send_rs+0x66a/0x870 net/ipv6/ndisc.c:723
 addrconf_dad_completed+0x958/0xe80 net/ipv6/addrconf.c:4322
 addrconf_dad_work+0xc1b/0x14a0 net/ipv6/addrconf.c:-1
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1580 [inline]
 free_pcp_prepare mm/page_alloc.c:1654 [inline]
 free_unref_page_prepare+0x80c/0x820 mm/page_alloc.c:3621
 free_unref_page+0x93/0x530 mm/page_alloc.c:3719
 free_the_page mm/page_alloc.c:863 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:6020
 __vunmap+0xa3c/0xc00 mm/vmalloc.c:2739
 __vfree mm/vmalloc.c:2788 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2819
 kcov_put kernel/kcov.c:437 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:533
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xaf2/0x2850 kernel/exit.c:887
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1030
 get_signal+0x167c/0x1700 kernel/signal.c:2895
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303

Memory state around the buggy address:
 ffff88812dc4ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88812dc4ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88812dc4f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88812dc4f080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc
 ffff88812dc4f100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
==================================================================
F2FS-fs (loop2): access invalid blkaddr:343184384
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:13
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:99680529
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:343212928
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2220490224
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2220382816
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294901760
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294939625
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767881944
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:351764416
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:16777216
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:771752191
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:128
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:16777216
CPU: 0 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:771752191
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767881424
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871
 f2fs_fill_super+0x5b38/0x7380 fs/f2fs/super.c:4621
 mount_bdev+0x29b/0x3d0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4861
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb40 fs/namespace.c:3081
 path_mount+0x640/0xfd0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffa06d9f10a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc176dbbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc176dbc80 RCX: 00007ffa06d9f10a
RDX: 0000200000000140 RSI: 0000200000000300 RDI: 00007ffc176dbc40
RBP: 0000200000000140 R08: 00007ffc176dbc80 R09: 00000000000004c2
R10: 00000000000004c2 R11: 0000000000000246 R12: 0000200000000300
R13: 00007ffc176dbc40 R14: 0000000000005541 R15: 0000200000000a80
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 376 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xcd2/0x1400 fs/f2fs/checkpoint.c:-1
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:447
 f2fs_truncate_data_blocks_range+0x5f3/0xef0 fs/f2fs/file.c:651
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:708
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x85b/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x69f/0xbf0 fs/f2fs/file.c:798
 f2fs_truncate_blocks+0x10b/0x310 fs/f2fs/file.c:826
 f2fs_truncate+0x1d6/0x3d0 fs/f2fs/file.c:876
 f2fs_evict_inode+0x94d/0x1790 fs/f2fs/inode.c:823
 evict+0x4c4/0x8c0 fs/inode.c:709
 iput_final fs/inode.c:1845 [inline]
 iput+0x633/0x690 fs/inode.c:1871

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/21 21:48 android14-6.1 72b456bf57ad 7c5de9c3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2026/02/28 17:14 android14-6.1 6bfa51973214 43249bac .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2026/02/28 16:54 android14-6.1 6bfa51973214 43249bac .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2026/02/08 14:15 android14-6.1 c9e2710a7bd0 4c131dc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/12 15:48 android14-6.1 af58dc05bbd2 ecca8a24 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/23 01:52 android14-6.1 e6c15792a6de 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
* Struck through repros no longer work on HEAD.