25.628467][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  325.692798][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  325.699975][ T6610] loop1: detected capacity change from 0 to 32768
[  325.736538][ T6610] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  325.736561][ T6610] CPU: 1 UID: 0 PID: 6610 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.736584][ T6610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  325.736596][ T6610] Call Trace:
[  325.736616][ T6610]  <TASK>
[  325.736624][ T6610]  dump_stack_lvl+0xe8/0x150
[  325.736660][ T6610]  sysfs_create_dir_ns+0x271/0x2a0
[  325.736689][ T6610]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.736718][ T6610]  ? rt_spin_unlock+0x163/0x200
[  325.736745][ T6610]  kobject_add_internal+0x62c/0xce0
[  325.736775][ T6610]  kobject_init_and_add+0x12b/0x1a0
[  325.736808][ T6610]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.736833][ T6610]  ? __raw_spin_lock_init+0x45/0x100
[  325.736855][ T6610]  ? __init_swait_queue_head+0xa8/0x150
[  325.736889][ T6610]  gfs2_sys_fs_add+0x257/0x480
[  325.736914][ T6610]  ? is_dynamic_key+0x1aa/0x1c0
[  325.736937][ T6610]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.736972][ T6610]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.737018][ T6610]  gfs2_fill_super+0x1368/0x20f0
[  325.737052][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.737070][ T6610]  ? rt_spin_unlock+0x157/0x200
[  325.737098][ T6610]  ? sb_set_blocksize+0x11b/0x210
[  325.737124][ T6610]  ? setup_bdev_super+0x586/0x680
[  325.737156][ T6610]  get_tree_bdev_flags+0x430/0x4f0
[  325.737185][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.737205][ T6610]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.737237][ T6610]  ? rcu_is_watching+0x15/0xb0
[  325.737302][ T6610]  gfs2_get_tree+0x51/0x1e0
[  325.737326][ T6610]  vfs_get_tree+0x92/0x2a0
[  325.737357][ T6610]  do_new_mount+0x319/0xdc0
[  325.737380][ T6610]  ? cap_capable+0x123/0x460
[  325.737411][ T6610]  ? __pfx_do_new_mount+0x10/0x10
[  325.737437][ T6610]  ? ns_capable+0x89/0xe0
[  325.737464][ T6610]  ? path_mount+0x647/0x1050
[  325.737491][ T6610]  ? user_path_at+0xd4/0x160
[  325.737520][ T6610]  __se_sys_mount+0x31d/0x420
[  325.737550][ T6610]  ? __pfx___se_sys_mount+0x10/0x10
[  325.737580][ T6610]  ? __x64_sys_mount+0x20/0xc0
[  325.737606][ T6610]  do_syscall_64+0x17b/0x530
[  325.737635][ T6610]  ? irqentry_exit+0x10f/0x8f0
[  325.737663][ T6610]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.737684][ T6610]  ? clear_bhb_loop+0x40/0x90
[  325.737709][ T6610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.737729][ T6610] RIP: 0033:0x7efc45b6f10a
[  325.737748][ T6610] 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
[  325.737767][ T6610] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.737789][ T6610] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  325.737804][ T6610] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  325.737819][ T6610] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  325.737833][ T6610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  325.737846][ T6610] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  325.737878][ T6610]  </TASK>
[  325.737929][ T6610] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.737945][ T6610] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.753532][ T6610] Flush: task=syz.1.227[6610] dev=loop1 state=2
[  325.842879][ T6610] Teardown: task=syz.1.227[6610] dev=loop1 state=2
[  326.366778][ T6613] loop1: detected capacity change from 0 to 32768
[  326.396334][ T6613] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.396357][ T6613] CPU: 1 UID: 0 PID: 6613 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.396381][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.396393][ T6613] Call Trace:
[  326.396401][ T6613]  <TASK>
[  326.396409][ T6613]  dump_stack_lvl+0xe8/0x150
[  326.396442][ T6613]  sysfs_create_dir_ns+0x271/0x2a0
[  326.396471][ T6613]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.396500][ T6613]  ? rt_spin_unlock+0x163/0x200
[  326.396528][ T6613]  kobject_add_internal+0x62c/0xce0
[  326.396558][ T6613]  kobject_init_and_add+0x12b/0x1a0
[  326.396586][ T6613]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.396610][ T6613]  ? __raw_spin_lock_init+0x45/0x100
[  326.396631][ T6613]  ? __init_swait_queue_head+0xa8/0x150
[  326.396664][ T6613]  gfs2_sys_fs_add+0x257/0x480
[  326.396688][ T6613]  ? is_dynamic_key+0x1aa/0x1c0
[  326.396712][ T6613]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.396745][ T6613]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.396798][ T6613]  gfs2_fill_super+0x1368/0x20f0
[  326.396826][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.396835][ T6613]  ? rt_spin_unlock+0x157/0x200
[  326.396849][ T6613]  ? sb_set_blocksize+0x11b/0x210
[  326.396863][ T6613]  ? setup_bdev_super+0x586/0x680
[  326.396879][ T6613]  get_tree_bdev_flags+0x430/0x4f0
[  326.396894][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.396905][ T6613]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.396921][ T6613]  ? rcu_is_watching+0x15/0xb0
[  326.396943][ T6613]  gfs2_get_tree+0x51/0x1e0
[  326.396955][ T6613]  vfs_get_tree+0x92/0x2a0
[  326.396971][ T6613]  do_new_mount+0x319/0xdc0
[  326.396983][ T6613]  ? cap_capable+0x123/0x460
[  326.396999][ T6613]  ? __pfx_do_new_mount+0x10/0x10
[  326.397012][ T6613]  ? ns_capable+0x89/0xe0
[  326.397026][ T6613]  ? path_mount+0x647/0x1050
[  326.397039][ T6613]  ? user_path_at+0xd4/0x160
[  326.397054][ T6613]  __se_sys_mount+0x31d/0x420
[  326.397070][ T6613]  ? __pfx___se_sys_mount+0x10/0x10
[  326.397084][ T6613]  ? __x64_sys_mount+0x20/0xc0
[  326.397097][ T6613]  do_syscall_64+0x17b/0x530
[  326.397112][ T6613]  ? irqentry_exit+0x10f/0x8f0
[  326.397126][ T6613]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.397137][ T6613]  ? clear_bhb_loop+0x40/0x90
[  326.397150][ T6613]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.397160][ T6613] RIP: 0033:0x7efc45b6f10a
[  326.397171][ T6613] 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
[  326.397181][ T6613] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.397193][ T6613] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  326.397201][ T6613] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  326.397209][ T6613] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  326.397216][ T6613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.397222][ T6613] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  326.397238][ T6613]  </TASK>
[  326.397300][ T6613] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.397309][ T6613] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.474348][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  326.624282][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  326.987697][ T6616] loop1: detected capacity change from 0 to 32768
[  326.992048][ T6616] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.992072][ T6616] CPU: 1 UID: 0 PID: 6616 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.992095][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.992106][ T6616] Call Trace:
[  326.992114][ T6616]  <TASK>
[  326.992123][ T6616]  dump_stack_lvl+0xe8/0x150
[  326.992157][ T6616]  sysfs_create_dir_ns+0x271/0x2a0
[  326.992185][ T6616]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.992213][ T6616]  ? rt_spin_unlock+0x163/0x200
[  326.992241][ T6616]  kobject_add_internal+0x62c/0xce0
[  326.992271][ T6616]  kobject_init_and_add+0x12b/0x1a0
[  326.992297][ T6616]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.992322][ T6616]  ? __raw_spin_lock_init+0x45/0x100
[  326.992344][ T6616]  ? __init_swait_queue_head+0xa8/0x150
[  326.992377][ T6616]  gfs2_sys_fs_add+0x257/0x480
[  326.992401][ T6616]  ? is_dynamic_key+0x1aa/0x1c0
[  326.992425][ T6616]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.992460][ T6616]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.992505][ T6616]  gfs2_fill_super+0x1368/0x20f0
[  326.992538][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.992557][ T6616]  ? rt_spin_unlock+0x157/0x200
[  326.992584][ T6616]  ? sb_set_blocksize+0x11b/0x210
[  326.992607][ T6616]  ? setup_bdev_super+0x586/0x680
[  326.992635][ T6616]  get_tree_bdev_flags+0x430/0x4f0
[  326.992660][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.992678][ T6616]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.992706][ T6616]  ? rcu_is_watching+0x15/0xb0
[  326.992734][ T6616]  gfs2_get_tree+0x51/0x1e0
[  326.992755][ T6616]  vfs_get_tree+0x92/0x2a0
[  326.992784][ T6616]  do_new_mount+0x319/0xdc0
[  326.992805][ T6616]  ? cap_capable+0x123/0x460
[  326.992835][ T6616]  ? __pfx_do_new_mount+0x10/0x10
[  326.992859][ T6616]  ? ns_capable+0x89/0xe0
[  326.992891][ T6616]  ? path_mount+0x647/0x1050
[  326.992911][ T6616]  ? user_path_at+0xd4/0x160
[  326.992944][ T6616]  __se_sys_mount+0x31d/0x420
[  326.992973][ T6616]  ? __pfx___se_sys_mount+0x10/0x10
[  326.993002][ T6616]  ? __x64_sys_mount+0x20/0xc0
[  326.993026][ T6616]  do_syscall_64+0x17b/0x530
[  326.993054][ T6616]  ? irqentry_exit+0x10f/0x8f0
[  326.993081][ T6616]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.993101][ T6616]  ? clear_bhb_loop+0x40/0x90
[  326.993125][ T6616]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.993144][ T6616] RIP: 0033:0x7efc45b6f10a
[  326.993163][ T6616] 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
[  326.993181][ T6616] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.993202][ T6616] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  326.993217][ T6616] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  326.993232][ T6616] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  326.993246][ T6616] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.993258][ T6616] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  326.993288][ T6616]  </TASK>
[  326.993469][ T6616] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.993486][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  327.194736][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  327.272821][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  327.665587][ T6619] loop1: detected capacity change from 0 to 32768
[  327.681176][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  327.681199][ T6619] CPU: 0 UID: 0 PID: 6619 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.681222][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  327.681234][ T6619] Call Trace:
[  327.681242][ T6619]  <TASK>
[  327.681250][ T6619]  dump_stack_lvl+0xe8/0x150
[  327.681285][ T6619]  sysfs_create_dir_ns+0x271/0x2a0
[  327.681314][ T6619]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  327.681343][ T6619]  ? rt_spin_unlock+0x163/0x200
[  327.681371][ T6619]  kobject_add_internal+0x62c/0xce0
[  327.681401][ T6619]  kobject_init_and_add+0x12b/0x1a0
[  327.681429][ T6619]  ? __pfx_kobject_init_and_add+0x10/0x10
[  327.681454][ T6619]  ? __raw_spin_lock_init+0x45/0x100
[  327.681476][ T6619]  ? __init_swait_queue_head+0xa8/0x150
[  327.681510][ T6619]  gfs2_sys_fs_add+0x257/0x480
[  327.681535][ T6619]  ? is_dynamic_key+0x1aa/0x1c0
[  327.681559][ T6619]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  327.681594][ T6619]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  327.681647][ T6619]  gfs2_fill_super+0x1368/0x20f0
[  327.681681][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.681700][ T6619]  ? rt_spin_unlock+0x157/0x200
[  327.681728][ T6619]  ? sb_set_blocksize+0x11b/0x210
[  327.681754][ T6619]  ? setup_bdev_super+0x586/0x680
[  327.681790][ T6619]  get_tree_bdev_flags+0x430/0x4f0
[  327.681820][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.681840][ T6619]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  327.681873][ T6619]  ? rcu_is_watching+0x15/0xb0
[  327.681905][ T6619]  gfs2_get_tree+0x51/0x1e0
[  327.681929][ T6619]  vfs_get_tree+0x92/0x2a0
[  327.681960][ T6619]  do_new_mount+0x319/0xdc0
[  327.681983][ T6619]  ? cap_capable+0x123/0x460
[  327.682016][ T6619]  ? __pfx_do_new_mount+0x10/0x10
[  327.682041][ T6619]  ? ns_capable+0x89/0xe0
[  327.682069][ T6619]  ? path_mount+0x647/0x1050
[  327.682095][ T6619]  ? user_path_at+0xd4/0x160
[  327.682124][ T6619]  __se_sys_mount+0x31d/0x420
[  327.682154][ T6619]  ? __pfx___se_sys_mount+0x10/0x10
[  327.682183][ T6619]  ? __x64_sys_mount+0x20/0xc0
[  327.682210][ T6619]  do_syscall_64+0x17b/0x530
[  327.682239][ T6619]  ? irqentry_exit+0x10f/0x8f0
[  327.682267][ T6619]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.682288][ T6619]  ? clear_bhb_loop+0x40/0x90
[  327.682313][ T6619]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.682334][ T6619] RIP: 0033:0x7efc45b6f10a
[  327.682353][ T6619] 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
[  327.682371][ T6619] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  327.682392][ T6619] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  327.682407][ T6619] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  327.682422][ T6619] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  327.682436][ T6619] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  327.682449][ T6619] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  327.682480][ T6619]  </TASK>
[  327.747586][ T6619] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  327.747612][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  327.901998][ T6619] Flush: task=syz.1.230[6619] dev=loop1 state=2
[  327.983313][ T6619] Teardown: task=syz.1.230[6619] dev=loop1 state=2
[  328.375053][ T6622] loop1: detected capacity change from 0 to 32768
[  328.401665][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  328.401688][ T6622] CPU: 0 UID: 0 PID: 6622 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  328.401710][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  328.401721][ T6622] Call Trace:
[  328.401730][ T6622]  <TASK>
[  328.401738][ T6622]  dump_stack_lvl+0xe8/0x150
[  328.401774][ T6622]  sysfs_create_dir_ns+0x271/0x2a0
[  328.401803][ T6622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  328.401833][ T6622]  ? rt_spin_unlock+0x163/0x200
[  328.401860][ T6622]  kobject_add_internal+0x62c/0xce0
[  328.401889][ T6622]  kobject_init_and_add+0x12b/0x1a0
[  328.401916][ T6622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  328.401940][ T6622]  ? __raw_spin_lock_init+0x45/0x100
[  328.401960][ T6622]  ? __init_swait_queue_head+0xa8/0x150
[  328.401993][ T6622]  gfs2_sys_fs_add+0x257/0x480
[  328.402015][ T6622]  ? is_dynamic_key+0x1aa/0x1c0
[  328.402038][ T6622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  328.402082][ T6622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  328.402126][ T6622]  gfs2_fill_super+0x1368/0x20f0
[  328.402158][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.402176][ T6622]  ? rt_spin_unlock+0x157/0x200
[  328.402202][ T6622]  ? sb_set_blocksize+0x11b/0x210
[  328.402227][ T6622]  ? setup_bdev_super+0x586/0x680
[  328.402259][ T6622]  get_tree_bdev_flags+0x430/0x4f0
[  328.402287][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.402307][ T6622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  328.402338][ T6622]  ? rcu_is_watching+0x15/0xb0
[  328.402368][ T6622]  gfs2_get_tree+0x51/0x1e0
[  328.402391][ T6622]  vfs_get_tree+0x92/0x2a0
[  328.402421][ T6622]  do_new_mount+0x319/0xdc0
[  328.402445][ T6622]  ? cap_capable+0x123/0x460
[  328.402477][ T6622]  ? __pfx_do_new_mount+0x10/0x10
[  328.402503][ T6622]  ? ns_capable+0x89/0xe0
[  328.402529][ T6622]  ? path_mount+0x647/0x1050
[  328.402555][ T6622]  ? user_path_at+0xd4/0x160
[  328.402581][ T6622]  __se_sys_mount+0x31d/0x420
[  328.402609][ T6622]  ? __pfx___se_sys_mount+0x10/0x10
[  328.402639][ T6622]  ? __x64_sys_mount+0x20/0xc0
[  328.402663][ T6622]  do_syscall_64+0x17b/0x530
[  328.402690][ T6622]  ? irqentry_exit+0x10f/0x8f0
[  328.402716][ T6622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.402735][ T6622]  ? clear_bhb_loop+0x40/0x90
[  328.402758][ T6622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.402777][ T6622] RIP: 0033:0x7efc45b6f10a
[  328.402795][ T6622] 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
[  328.402813][ T6622] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  328.402832][ T6622] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  328.402847][ T6622] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  328.402860][ T6622] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  328.402874][ T6622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  328.402886][ T6622] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  328.402916][ T6622]  </TASK>
[  328.403184][ T6622] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  328.403202][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  328.617519][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  328.692808][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  328.936703][ T6625] loop1: detected capacity change from 0 to 32768
[  328.942338][ T6625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  328.942359][ T6625] CPU: 0 UID: 0 PID: 6625 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  328.942381][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  328.942393][ T6625] Call Trace:
[  328.942401][ T6625]  <TASK>
[  328.942410][ T6625]  dump_stack_lvl+0xe8/0x150
[  328.942445][ T6625]  sysfs_create_dir_ns+0x271/0x2a0
[  328.942473][ T6625]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  328.942503][ T6625]  ? rt_spin_unlock+0x163/0x200
[  328.942531][ T6625]  kobject_add_internal+0x62c/0xce0
[  328.942560][ T6625]  kobject_init_and_add+0x12b/0x1a0
[  328.942587][ T6625]  ? __pfx_kobject_init_and_add+0x10/0x10
[  328.942610][ T6625]  ? __raw_spin_lock_init+0x45/0x100
[  328.942633][ T6625]  ? __init_swait_queue_head+0xa8/0x150
[  328.942664][ T6625]  gfs2_sys_fs_add+0x257/0x480
[  328.942686][ T6625]  ? is_dynamic_key+0x1aa/0x1c0
[  328.942707][ T6625]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  328.942739][ T6625]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  328.942783][ T6625]  gfs2_fill_super+0x1368/0x20f0
[  328.942817][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.942836][ T6625]  ? rt_spin_unlock+0x157/0x200
[  328.942864][ T6625]  ? sb_set_blocksize+0x11b/0x210
[  328.942891][ T6625]  ? setup_bdev_super+0x586/0x680
[  328.942921][ T6625]  get_tree_bdev_flags+0x430/0x4f0
[  328.942944][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.942963][ T6625]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  328.943000][ T6625]  ? rcu_is_watching+0x15/0xb0
[  328.943032][ T6625]  gfs2_get_tree+0x51/0x1e0
[  328.943063][ T6625]  vfs_get_tree+0x92/0x2a0
[  328.943093][ T6625]  do_new_mount+0x319/0xdc0
[  328.943116][ T6625]  ? cap_capable+0x123/0x460
[  328.943148][ T6625]  ? __pfx_do_new_mount+0x10/0x10
[  328.943173][ T6625]  ? ns_capable+0x89/0xe0
[  328.943200][ T6625]  ? path_mount+0x647/0x1050
[  328.943226][ T6625]  ? user_path_at+0xd4/0x160
[  328.943254][ T6625]  __se_sys_mount+0x31d/0x420
[  328.943285][ T6625]  ? __pfx___se_sys_mount+0x10/0x10
[  328.943314][ T6625]  ? __x64_sys_mount+0x20/0xc0
[  328.943340][ T6625]  do_syscall_64+0x17b/0x530
[  328.943369][ T6625]  ? irqentry_exit+0x10f/0x8f0
[  328.943396][ T6625]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.943416][ T6625]  ? clear_bhb_loop+0x40/0x90
[  328.943441][ T6625]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.943461][ T6625] RIP: 0033:0x7efc45b6f10a
[  328.943479][ T6625] 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
[  328.943497][ T6625] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  328.943516][ T6625] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  328.943530][ T6625] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  328.943541][ T6625] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  328.943552][ T6625] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  328.943560][ T6625] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  328.943585][ T6625]  </TASK>
[  328.945661][ T6625] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  328.945680][ T6625] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  329.132457][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  329.352816][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  329.518098][ T6628] loop1: detected capacity change from 0 to 32768
[  329.551227][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  329.551252][ T6628] CPU: 1 UID: 0 PID: 6628 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  329.551275][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  329.551285][ T6628] Call Trace:
[  329.551293][ T6628]  <TASK>
[  329.551302][ T6628]  dump_stack_lvl+0xe8/0x150
[  329.551336][ T6628]  sysfs_create_dir_ns+0x271/0x2a0
[  329.551363][ T6628]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  329.551390][ T6628]  ? rt_spin_unlock+0x163/0x200
[  329.551417][ T6628]  kobject_add_internal+0x62c/0xce0
[  329.551447][ T6628]  kobject_init_and_add+0x12b/0x1a0
[  329.551468][ T6628]  ? __pfx_kobject_init_and_add+0x10/0x10
[  329.551484][ T6628]  ? __raw_spin_lock_init+0x45/0x100
[  329.551496][ T6628]  ? __init_swait_queue_head+0xa8/0x150
[  329.551514][ T6628]  gfs2_sys_fs_add+0x257/0x480
[  329.551527][ T6628]  ? is_dynamic_key+0x1aa/0x1c0
[  329.551539][ T6628]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  329.551557][ T6628]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  329.551580][ T6628]  gfs2_fill_super+0x1368/0x20f0
[  329.551597][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.551606][ T6628]  ? rt_spin_unlock+0x157/0x200
[  329.551620][ T6628]  ? sb_set_blocksize+0x11b/0x210
[  329.551634][ T6628]  ? setup_bdev_super+0x586/0x680
[  329.551650][ T6628]  get_tree_bdev_flags+0x430/0x4f0
[  329.551665][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.551675][ T6628]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  329.551692][ T6628]  ? rcu_is_watching+0x15/0xb0
[  329.551711][ T6628]  gfs2_get_tree+0x51/0x1e0
[  329.551723][ T6628]  vfs_get_tree+0x92/0x2a0
[  329.551739][ T6628]  do_new_mount+0x319/0xdc0
[  329.551752][ T6628]  ? cap_capable+0x123/0x460
[  329.551768][ T6628]  ? __pfx_do_new_mount+0x10/0x10
[  329.551782][ T6628]  ? ns_capable+0x89/0xe0
[  329.551795][ T6628]  ? path_mount+0x647/0x1050
[  329.551808][ T6628]  ? user_path_at+0xd4/0x160
[  329.551824][ T6628]  __se_sys_mount+0x31d/0x420
[  329.551839][ T6628]  ? __pfx___se_sys_mount+0x10/0x10
[  329.551853][ T6628]  ? __x64_sys_mount+0x20/0xc0
[  329.551867][ T6628]  do_syscall_64+0x17b/0x530
[  329.551882][ T6628]  ? irqentry_exit+0x10f/0x8f0
[  329.551896][ T6628]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.551907][ T6628]  ? clear_bhb_loop+0x40/0x90
[  329.551920][ T6628]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.551930][ T6628] RIP: 0033:0x7efc45b6f10a
[  329.551942][ T6628] 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
[  329.551952][ T6628] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  329.551964][ T6628] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  329.551971][ T6628] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  329.551985][ T6628] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  329.551992][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  329.551998][ T6628] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  329.552014][ T6628]  </TASK>
[  329.552155][ T6628] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  329.552171][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  329.701263][ T6628] Flush: task=syz.1.233[6628] dev=loop1 state=2
[  329.784224][ T6628] Teardown: task=syz.1.233[6628] dev=loop1 state=2
2026/07/20 04:59:35 executed programs: 219
[  330.200928][ T6631] loop1: detected capacity change from 0 to 32768
[  330.221144][ T6631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  330.221163][ T6631] CPU: 1 UID: 0 PID: 6631 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  330.221179][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  330.221188][ T6631] Call Trace:
[  330.221194][ T6631]  <TASK>
[  330.221201][ T6631]  dump_stack_lvl+0xe8/0x150
[  330.221228][ T6631]  sysfs_create_dir_ns+0x271/0x2a0
[  330.221249][ T6631]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  330.221270][ T6631]  ? rt_spin_unlock+0x163/0x200
[  330.221290][ T6631]  kobject_add_internal+0x62c/0xce0
[  330.221311][ T6631]  kobject_init_and_add+0x12b/0x1a0
[  330.221330][ T6631]  ? __pfx_kobject_init_and_add+0x10/0x10
[  330.221348][ T6631]  ? __raw_spin_lock_init+0x45/0x100
[  330.221364][ T6631]  ? __init_swait_queue_head+0xa8/0x150
[  330.221391][ T6631]  gfs2_sys_fs_add+0x257/0x480
[  330.221409][ T6631]  ? is_dynamic_key+0x1aa/0x1c0
[  330.221426][ T6631]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  330.221465][ T6631]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  330.221505][ T6631]  gfs2_fill_super+0x1368/0x20f0
[  330.221530][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.221543][ T6631]  ? rt_spin_unlock+0x157/0x200
[  330.221563][ T6631]  ? sb_set_blocksize+0x11b/0x210
[  330.221582][ T6631]  ? setup_bdev_super+0x586/0x680
[  330.221605][ T6631]  get_tree_bdev_flags+0x430/0x4f0
[  330.221626][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.221640][ T6631]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  330.221662][ T6631]  ? rcu_is_watching+0x15/0xb0
[  330.221685][ T6631]  gfs2_get_tree+0x51/0x1e0
[  330.221702][ T6631]  vfs_get_tree+0x92/0x2a0
[  330.221724][ T6631]  do_new_mount+0x319/0xdc0
[  330.221741][ T6631]  ? cap_capable+0x123/0x460
[  330.221765][ T6631]  ? __pfx_do_new_mount+0x10/0x10
[  330.221784][ T6631]  ? ns_capable+0x89/0xe0
[  330.221805][ T6631]  ? path_mount+0x647/0x1050
[  330.221824][ T6631]  ? user_path_at+0xd4/0x160
[  330.221847][ T6631]  __se_sys_mount+0x31d/0x420
[  330.221871][ T6631]  ? __pfx___se_sys_mount+0x10/0x10
[  330.221895][ T6631]  ? __x64_sys_mount+0x20/0xc0
[  330.221916][ T6631]  do_syscall_64+0x17b/0x530
[  330.221939][ T6631]  ? irqentry_exit+0x10f/0x8f0
[  330.221960][ T6631]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.221984][ T6631]  ? clear_bhb_loop+0x40/0x90
[  330.222004][ T6631]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.222020][ T6631] RIP: 0033:0x7efc45b6f10a
[  330.222036][ T6631] 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
[  330.222050][ T6631] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  330.222068][ T6631] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  330.222085][ T6631] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  330.222096][ T6631] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  330.222107][ T6631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  330.222118][ T6631] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  330.222143][ T6631]  </TASK>
[  330.222184][ T6631] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  330.222198][ T6631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.581438][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  330.652958][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  330.735376][ T6634] loop1: detected capacity change from 0 to 32768
[  330.749546][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  330.749569][ T6634] CPU: 1 UID: 0 PID: 6634 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  330.749592][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  330.749604][ T6634] Call Trace:
[  330.749612][ T6634]  <TASK>
[  330.749620][ T6634]  dump_stack_lvl+0xe8/0x150
[  330.749655][ T6634]  sysfs_create_dir_ns+0x271/0x2a0
[  330.749683][ T6634]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  330.749712][ T6634]  ? rt_spin_unlock+0x163/0x200
[  330.749740][ T6634]  kobject_add_internal+0x62c/0xce0
[  330.749769][ T6634]  kobject_init_and_add+0x12b/0x1a0
[  330.749797][ T6634]  ? __pfx_kobject_init_and_add+0x10/0x10
[  330.749822][ T6634]  ? __raw_spin_lock_init+0x45/0x100
[  330.749843][ T6634]  ? __init_swait_queue_head+0xa8/0x150
[  330.749884][ T6634]  gfs2_sys_fs_add+0x257/0x480
[  330.749910][ T6634]  ? is_dynamic_key+0x1aa/0x1c0
[  330.749934][ T6634]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  330.749969][ T6634]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  330.750018][ T6634]  gfs2_fill_super+0x1368/0x20f0
[  330.750051][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.750070][ T6634]  ? rt_spin_unlock+0x157/0x200
[  330.750097][ T6634]  ? sb_set_blocksize+0x11b/0x210
[  330.750124][ T6634]  ? setup_bdev_super+0x586/0x680
[  330.750156][ T6634]  get_tree_bdev_flags+0x430/0x4f0
[  330.750185][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.750205][ T6634]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  330.750236][ T6634]  ? rcu_is_watching+0x15/0xb0
[  330.750268][ T6634]  gfs2_get_tree+0x51/0x1e0
[  330.750292][ T6634]  vfs_get_tree+0x92/0x2a0
[  330.750322][ T6634]  do_new_mount+0x319/0xdc0
[  330.750344][ T6634]  ? cap_capable+0x123/0x460
[  330.750375][ T6634]  ? __pfx_do_new_mount+0x10/0x10
[  330.750401][ T6634]  ? ns_capable+0x89/0xe0
[  330.750428][ T6634]  ? path_mount+0x647/0x1050
[  330.750454][ T6634]  ? user_path_at+0xd4/0x160
[  330.750483][ T6634]  __se_sys_mount+0x31d/0x420
[  330.750513][ T6634]  ? __pfx___se_sys_mount+0x10/0x10
[  330.750542][ T6634]  ? __x64_sys_mount+0x20/0xc0
[  330.750568][ T6634]  do_syscall_64+0x17b/0x530
[  330.750597][ T6634]  ? irqentry_exit+0x10f/0x8f0
[  330.750624][ T6634]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.750645][ T6634]  ? clear_bhb_loop+0x40/0x90
[  330.750670][ T6634]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.750690][ T6634] RIP: 0033:0x7efc45b6f10a
[  330.750709][ T6634] 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
[  330.750727][ T6634] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  330.750749][ T6634] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  330.750764][ T6634] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  330.750779][ T6634] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  330.750793][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  330.750806][ T6634] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  330.750838][ T6634]  </TASK>
[  330.752371][ T6634] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  330.752389][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.807469][ T6634] Flush: task=syz.1.235[6634] dev=loop1 state=2
[  330.893403][ T6634] Teardown: task=syz.1.235[6634] dev=loop1 state=2
[  331.343888][ T6637] loop1: detected capacity change from 0 to 32768
[  331.372100][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  331.372114][ T6637] CPU: 0 UID: 0 PID: 6637 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  331.372127][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  331.372134][ T6637] Call Trace:
[  331.372138][ T6637]  <TASK>
[  331.372143][ T6637]  dump_stack_lvl+0xe8/0x150
[  331.372163][ T6637]  sysfs_create_dir_ns+0x271/0x2a0
[  331.372178][ T6637]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  331.372193][ T6637]  ? rt_spin_unlock+0x163/0x200
[  331.372208][ T6637]  kobject_add_internal+0x62c/0xce0
[  331.372223][ T6637]  kobject_init_and_add+0x12b/0x1a0
[  331.372238][ T6637]  ? __pfx_kobject_init_and_add+0x10/0x10
[  331.372256][ T6637]  ? __raw_spin_lock_init+0x45/0x100
[  331.372269][ T6637]  ? __init_swait_queue_head+0xa8/0x150
[  331.372286][ T6637]  gfs2_sys_fs_add+0x257/0x480
[  331.372299][ T6637]  ? is_dynamic_key+0x1aa/0x1c0
[  331.372317][ T6637]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  331.372335][ T6637]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  331.372359][ T6637]  gfs2_fill_super+0x1368/0x20f0
[  331.372376][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.372385][ T6637]  ? rt_spin_unlock+0x157/0x200
[  331.372399][ T6637]  ? sb_set_blocksize+0x11b/0x210
[  331.372413][ T6637]  ? setup_bdev_super+0x586/0x680
[  331.372429][ T6637]  get_tree_bdev_flags+0x430/0x4f0
[  331.372444][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.372455][ T6637]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  331.372471][ T6637]  ? rcu_is_watching+0x15/0xb0
[  331.372488][ T6637]  gfs2_get_tree+0x51/0x1e0
[  331.372500][ T6637]  vfs_get_tree+0x92/0x2a0
[  331.372516][ T6637]  do_new_mount+0x319/0xdc0
[  331.372528][ T6637]  ? cap_capable+0x123/0x460
[  331.372544][ T6637]  ? __pfx_do_new_mount+0x10/0x10
[  331.372557][ T6637]  ? ns_capable+0x89/0xe0
[  331.372571][ T6637]  ? path_mount+0x647/0x1050
[  331.372584][ T6637]  ? user_path_at+0xd4/0x160
[  331.372599][ T6637]  __se_sys_mount+0x31d/0x420
[  331.372615][ T6637]  ? __pfx___se_sys_mount+0x10/0x10
[  331.372643][ T6637]  ? __x64_sys_mount+0x20/0xc0
[  331.372666][ T6637]  do_syscall_64+0x17b/0x530
[  331.372694][ T6637]  ? irqentry_exit+0x10f/0x8f0
[  331.372720][ T6637]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.372737][ T6637]  ? clear_bhb_loop+0x40/0x90
[  331.372750][ T6637]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.372761][ T6637] RIP: 0033:0x7efc45b6f10a
[  331.372772][ T6637] 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
[  331.372782][ T6637] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  331.372794][ T6637] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  331.372802][ T6637] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  331.372809][ T6637] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  331.372819][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  331.372825][ T6637] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  331.372841][ T6637]  </TASK>
[  331.374744][ T6637] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  331.374763][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  331.507100][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  331.602739][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  331.926154][ T6640] loop1: detected capacity change from 0 to 32768
[  331.942478][ T6640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  331.942499][ T6640] CPU: 0 UID: 0 PID: 6640 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  331.942522][ T6640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  331.942533][ T6640] Call Trace:
[  331.942541][ T6640]  <TASK>
[  331.942549][ T6640]  dump_stack_lvl+0xe8/0x150
[  331.942583][ T6640]  sysfs_create_dir_ns+0x271/0x2a0
[  331.942611][ T6640]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  331.942641][ T6640]  ? rt_spin_unlock+0x163/0x200
[  331.942667][ T6640]  kobject_add_internal+0x62c/0xce0
[  331.942695][ T6640]  kobject_init_and_add+0x12b/0x1a0
[  331.942720][ T6640]  ? __pfx_kobject_init_and_add+0x10/0x10
[  331.942743][ T6640]  ? __raw_spin_lock_init+0x45/0x100
[  331.942764][ T6640]  ? __init_swait_queue_head+0xa8/0x150
[  331.942795][ T6640]  gfs2_sys_fs_add+0x257/0x480
[  331.942821][ T6640]  ? is_dynamic_key+0x1aa/0x1c0
[  331.942845][ T6640]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  331.942880][ T6640]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  331.942928][ T6640]  gfs2_fill_super+0x1368/0x20f0
[  331.942959][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.942977][ T6640]  ? rt_spin_unlock+0x157/0x200
[  331.943009][ T6640]  ? sb_set_blocksize+0x11b/0x210
[  331.943033][ T6640]  ? setup_bdev_super+0x586/0x680
[  331.943065][ T6640]  get_tree_bdev_flags+0x430/0x4f0
[  331.943093][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.943112][ T6640]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  331.943143][ T6640]  ? rcu_is_watching+0x15/0xb0
[  331.943173][ T6640]  gfs2_get_tree+0x51/0x1e0
[  331.943195][ T6640]  vfs_get_tree+0x92/0x2a0
[  331.943224][ T6640]  do_new_mount+0x319/0xdc0
[  331.943246][ T6640]  ? cap_capable+0x123/0x460
[  331.943289][ T6640]  ? __pfx_do_new_mount+0x10/0x10
[  331.943314][ T6640]  ? ns_capable+0x89/0xe0
[  331.943340][ T6640]  ? path_mount+0x647/0x1050
[  331.943365][ T6640]  ? user_path_at+0xd4/0x160
[  331.943394][ T6640]  __se_sys_mount+0x31d/0x420
[  331.943424][ T6640]  ? __pfx___se_sys_mount+0x10/0x10
[  331.943460][ T6640]  ? __x64_sys_mount+0x20/0xc0
[  331.943485][ T6640]  do_syscall_64+0x17b/0x530
[  331.943513][ T6640]  ? irqentry_exit+0x10f/0x8f0
[  331.943540][ T6640]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.943562][ T6640]  ? clear_bhb_loop+0x40/0x90
[  331.943587][ T6640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.943607][ T6640] RIP: 0033:0x7efc45b6f10a
[  331.943626][ T6640] 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
[  331.943644][ T6640] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  331.943665][ T6640] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  331.943680][ T6640] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  331.943694][ T6640] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  331.943708][ T6640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  331.943721][ T6640] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  331.943750][ T6640]  </TASK>
[  332.060320][ T6640] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.060341][ T6640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  332.096398][ T6640] Flush: task=syz.1.237[6640] dev=loop1 state=2
[  332.172802][ T6640] Teardown: task=syz.1.237[6640] dev=loop1 state=2
[  332.581377][ T6643] loop1: detected capacity change from 0 to 32768
[  332.592941][ T6643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  332.592963][ T6643] CPU: 0 UID: 0 PID: 6643 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  332.592986][ T6643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  332.592997][ T6643] Call Trace:
[  332.593005][ T6643]  <TASK>
[  332.593012][ T6643]  dump_stack_lvl+0xe8/0x150
[  332.593044][ T6643]  sysfs_create_dir_ns+0x271/0x2a0
[  332.593073][ T6643]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  332.593101][ T6643]  ? rt_spin_unlock+0x163/0x200
[  332.593127][ T6643]  kobject_add_internal+0x62c/0xce0
[  332.593154][ T6643]  kobject_init_and_add+0x12b/0x1a0
[  332.593178][ T6643]  ? __pfx_kobject_init_and_add+0x10/0x10
[  332.593202][ T6643]  ? __raw_spin_lock_init+0x45/0x100
[  332.593223][ T6643]  ? __init_swait_queue_head+0xa8/0x150
[  332.593256][ T6643]  gfs2_sys_fs_add+0x257/0x480
[  332.593279][ T6643]  ? is_dynamic_key+0x1aa/0x1c0
[  332.593303][ T6643]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  332.593336][ T6643]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  332.593381][ T6643]  gfs2_fill_super+0x1368/0x20f0
[  332.593433][ T6643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.593451][ T6643]  ? rt_spin_unlock+0x157/0x200
[  332.593479][ T6643]  ? sb_set_blocksize+0x11b/0x210
[  332.593503][ T6643]  ? setup_bdev_super+0x586/0x680
[  332.593533][ T6643]  get_tree_bdev_flags+0x430/0x4f0
[  332.593561][ T6643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.593581][ T6643]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  332.593610][ T6643]  ? rcu_is_watching+0x15/0xb0
[  332.593639][ T6643]  gfs2_get_tree+0x51/0x1e0
[  332.593662][ T6643]  vfs_get_tree+0x92/0x2a0
[  332.593699][ T6643]  do_new_mount+0x319/0xdc0
[  332.593722][ T6643]  ? cap_capable+0x123/0x460
[  332.593751][ T6643]  ? __pfx_do_new_mount+0x10/0x10
[  332.593776][ T6643]  ? ns_capable+0x89/0xe0
[  332.593802][ T6643]  ? path_mount+0x647/0x1050
[  332.593827][ T6643]  ? user_path_at+0xd4/0x160
[  332.593855][ T6643]  __se_sys_mount+0x31d/0x420
[  332.593885][ T6643]  ? __pfx___se_sys_mount+0x10/0x10
[  332.593912][ T6643]  ? __x64_sys_mount+0x20/0xc0
[  332.593938][ T6643]  do_syscall_64+0x17b/0x530
[  332.593967][ T6643]  ? irqentry_exit+0x10f/0x8f0
[  332.593994][ T6643]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.594014][ T6643]  ? clear_bhb_loop+0x40/0x90
[  332.594038][ T6643]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.594057][ T6643] RIP: 0033:0x7efc45b6f10a
[  332.594075][ T6643] 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
[  332.594093][ T6643] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  332.594114][ T6643] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  332.594129][ T6643] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  332.594143][ T6643] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  332.594158][ T6643] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  332.594170][ T6643] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  332.594201][ T6643]  </TASK>
[  332.596173][ T6643] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.596191][ T6643] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  333.001910][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  333.075485][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  333.481579][ T6647] loop1: detected capacity change from 0 to 32768
[  333.491186][ T6647] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  333.491213][ T6647] CPU: 0 UID: 0 PID: 6647 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  333.491240][ T6647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  333.491251][ T6647] Call Trace:
[  333.491259][ T6647]  <TASK>
[  333.491268][ T6647]  dump_stack_lvl+0xe8/0x150
[  333.491306][ T6647]  sysfs_create_dir_ns+0x271/0x2a0
[  333.491333][ T6647]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  333.491362][ T6647]  ? rt_spin_unlock+0x163/0x200
[  333.491390][ T6647]  kobject_add_internal+0x62c/0xce0
[  333.491419][ T6647]  kobject_init_and_add+0x12b/0x1a0
[  333.491447][ T6647]  ? __pfx_kobject_init_and_add+0x10/0x10
[  333.491471][ T6647]  ? __raw_spin_lock_init+0x45/0x100
[  333.491492][ T6647]  ? __init_swait_queue_head+0xa8/0x150
[  333.491525][ T6647]  gfs2_sys_fs_add+0x257/0x480
[  333.491550][ T6647]  ? is_dynamic_key+0x1aa/0x1c0
[  333.491574][ T6647]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  333.491618][ T6647]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  333.491662][ T6647]  gfs2_fill_super+0x1368/0x20f0
[  333.491695][ T6647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.491714][ T6647]  ? rt_spin_unlock+0x157/0x200
[  333.491741][ T6647]  ? sb_set_blocksize+0x11b/0x210
[  333.491767][ T6647]  ? setup_bdev_super+0x586/0x680
[  333.491798][ T6647]  get_tree_bdev_flags+0x430/0x4f0
[  333.491827][ T6647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.491848][ T6647]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  333.491879][ T6647]  ? rcu_is_watching+0x15/0xb0
[  333.491911][ T6647]  gfs2_get_tree+0x51/0x1e0
[  333.491935][ T6647]  vfs_get_tree+0x92/0x2a0
[  333.491966][ T6647]  do_new_mount+0x319/0xdc0
[  333.491989][ T6647]  ? cap_capable+0x123/0x460
[  333.492020][ T6647]  ? __pfx_do_new_mount+0x10/0x10
[  333.492046][ T6647]  ? ns_capable+0x89/0xe0
[  333.492073][ T6647]  ? path_mount+0x647/0x1050
[  333.492098][ T6647]  ? user_path_at+0xd4/0x160
[  333.492126][ T6647]  __se_sys_mount+0x31d/0x420
[  333.492155][ T6647]  ? __pfx___se_sys_mount+0x10/0x10
[  333.492184][ T6647]  ? __x64_sys_mount+0x20/0xc0
[  333.492210][ T6647]  do_syscall_64+0x17b/0x530
[  333.492238][ T6647]  ? irqentry_exit+0x10f/0x8f0
[  333.492266][ T6647]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.492287][ T6647]  ? clear_bhb_loop+0x40/0x90
[  333.492311][ T6647]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.492331][ T6647] RIP: 0033:0x7efc45b6f10a
[  333.492350][ T6647] 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
[  333.492368][ T6647] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  333.492389][ T6647] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  333.492403][ T6647] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  333.492417][ T6647] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  333.492432][ T6647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  333.492444][ T6647] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  333.492476][ T6647]  </TASK>
[  333.498598][ T6647] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  333.498617][ T6647] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  333.894976][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  333.992767][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  334.424814][ T6651] loop1: detected capacity change from 0 to 32768
[  334.441469][ T6651] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  334.441491][ T6651] CPU: 1 UID: 0 PID: 6651 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  334.441518][ T6651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  334.441527][ T6651] Call Trace:
[  334.441534][ T6651]  <TASK>
[  334.441540][ T6651]  dump_stack_lvl+0xe8/0x150
[  334.441566][ T6651]  sysfs_create_dir_ns+0x271/0x2a0
[  334.441587][ T6651]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  334.441608][ T6651]  ? rt_spin_unlock+0x163/0x200
[  334.441627][ T6651]  kobject_add_internal+0x62c/0xce0
[  334.441649][ T6651]  kobject_init_and_add+0x12b/0x1a0
[  334.441669][ T6651]  ? __pfx_kobject_init_and_add+0x10/0x10
[  334.441690][ T6651]  ? __raw_spin_lock_init+0x45/0x100
[  334.441707][ T6651]  ? __init_swait_queue_head+0xa8/0x150
[  334.441731][ T6651]  gfs2_sys_fs_add+0x257/0x480
[  334.441749][ T6651]  ? is_dynamic_key+0x1aa/0x1c0
[  334.441766][ T6651]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  334.441790][ T6651]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  334.441822][ T6651]  gfs2_fill_super+0x1368/0x20f0
[  334.441846][ T6651]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.441859][ T6651]  ? rt_spin_unlock+0x157/0x200
[  334.441879][ T6651]  ? sb_set_blocksize+0x11b/0x210
[  334.441898][ T6651]  ? setup_bdev_super+0x586/0x680
[  334.441921][ T6651]  get_tree_bdev_flags+0x430/0x4f0
[  334.441942][ T6651]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.441956][ T6651]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  334.441979][ T6651]  ? rcu_is_watching+0x15/0xb0
[  334.442003][ T6651]  gfs2_get_tree+0x51/0x1e0
[  334.442021][ T6651]  vfs_get_tree+0x92/0x2a0
[  334.442043][ T6651]  do_new_mount+0x319/0xdc0
[  334.442060][ T6651]  ? cap_capable+0x123/0x460
[  334.442084][ T6651]  ? __pfx_do_new_mount+0x10/0x10
[  334.442103][ T6651]  ? ns_capable+0x89/0xe0
[  334.442122][ T6651]  ? path_mount+0x647/0x1050
[  334.442140][ T6651]  ? user_path_at+0xd4/0x160
[  334.442161][ T6651]  __se_sys_mount+0x31d/0x420
[  334.442184][ T6651]  ? __pfx___se_sys_mount+0x10/0x10
[  334.442206][ T6651]  ? __x64_sys_mount+0x20/0xc0
[  334.442225][ T6651]  do_syscall_64+0x17b/0x530
[  334.442249][ T6651]  ? irqentry_exit+0x10f/0x8f0
[  334.442269][ T6651]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.442285][ T6651]  ? clear_bhb_loop+0x40/0x90
[  334.442304][ T6651]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.442320][ T6651] RIP: 0033:0x7efc45b6f10a
[  334.442336][ T6651] 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
[  334.442351][ T6651] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  334.442369][ T6651] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  334.442381][ T6651] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  334.442394][ T6651] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  334.442406][ T6651] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  334.442416][ T6651] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  334.442438][ T6651]  </TASK>
[  334.442478][ T6651] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  334.442490][ T6651] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  334.552026][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  334.612773][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  335.013139][ T6654] loop1: detected capacity change from 0 to 32768
[  335.016404][ T6654] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  335.016425][ T6654] CPU: 1 UID: 0 PID: 6654 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  335.016458][ T6654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  335.016469][ T6654] Call Trace:
[  335.016478][ T6654]  <TASK>
[  335.016485][ T6654]  dump_stack_lvl+0xe8/0x150
[  335.016519][ T6654]  sysfs_create_dir_ns+0x271/0x2a0
2026/07/20 04:59:41 executed programs: 229
[  335.016547][ T6654]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  335.016574][ T6654]  ? rt_spin_unlock+0x163/0x200
[  335.016601][ T6654]  kobject_add_internal+0x62c/0xce0
[  335.016630][ T6654]  kobject_init_and_add+0x12b/0x1a0
[  335.016657][ T6654]  ? __pfx_kobject_init_and_add+0x10/0x10
[  335.016680][ T6654]  ? __raw_spin_lock_init+0x45/0x100
[  335.016702][ T6654]  ? __init_swait_queue_head+0xa8/0x150
[  335.016735][ T6654]  gfs2_sys_fs_add+0x257/0x480
[  335.016760][ T6654]  ? is_dynamic_key+0x1aa/0x1c0
[  335.016783][ T6654]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  335.016818][ T6654]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  335.016863][ T6654]  gfs2_fill_super+0x1368/0x20f0
[  335.016896][ T6654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.016915][ T6654]  ? rt_spin_unlock+0x157/0x200
[  335.016942][ T6654]  ? sb_set_blocksize+0x11b/0x210
[  335.016968][ T6654]  ? setup_bdev_super+0x586/0x680
[  335.016999][ T6654]  get_tree_bdev_flags+0x430/0x4f0
[  335.017027][ T6654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.017047][ T6654]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  335.017079][ T6654]  ? rcu_is_watching+0x15/0xb0
[  335.017110][ T6654]  gfs2_get_tree+0x51/0x1e0
[  335.017130][ T6654]  vfs_get_tree+0x92/0x2a0
[  335.017160][ T6654]  do_new_mount+0x319/0xdc0
[  335.017182][ T6654]  ? cap_capable+0x123/0x460
[  335.017214][ T6654]  ? __pfx_do_new_mount+0x10/0x10
[  335.017239][ T6654]  ? ns_capable+0x89/0xe0
[  335.017266][ T6654]  ? path_mount+0x647/0x1050
[  335.017292][ T6654]  ? user_path_at+0xd4/0x160
[  335.017318][ T6654]  __se_sys_mount+0x31d/0x420
[  335.017346][ T6654]  ? __pfx___se_sys_mount+0x10/0x10
[  335.017374][ T6654]  ? __x64_sys_mount+0x20/0xc0
[  335.017399][ T6654]  do_syscall_64+0x17b/0x530
[  335.017429][ T6654]  ? irqentry_exit+0x10f/0x8f0
[  335.017464][ T6654]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.017485][ T6654]  ? clear_bhb_loop+0x40/0x90
[  335.017508][ T6654]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.017528][ T6654] RIP: 0033:0x7efc45b6f10a
[  335.017547][ T6654] 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
[  335.017565][ T6654] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  335.017586][ T6654] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  335.017601][ T6654] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  335.017615][ T6654] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  335.017629][ T6654] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  335.017642][ T6654] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  335.017673][ T6654]  </TASK>
[  335.019181][ T6654] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  335.019199][ T6654] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  335.179899][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  335.254029][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  335.576103][ T6657] loop1: detected capacity change from 0 to 32768
[  335.580269][ T6657] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  335.580290][ T6657] CPU: 1 UID: 0 PID: 6657 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  335.580313][ T6657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  335.580324][ T6657] Call Trace:
[  335.580332][ T6657]  <TASK>
[  335.580340][ T6657]  dump_stack_lvl+0xe8/0x150
[  335.580375][ T6657]  sysfs_create_dir_ns+0x271/0x2a0
[  335.580403][ T6657]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  335.580433][ T6657]  ? rt_spin_unlock+0x163/0x200
[  335.580469][ T6657]  kobject_add_internal+0x62c/0xce0
[  335.580499][ T6657]  kobject_init_and_add+0x12b/0x1a0
[  335.580526][ T6657]  ? __pfx_kobject_init_and_add+0x10/0x10
[  335.580550][ T6657]  ? __raw_spin_lock_init+0x45/0x100
[  335.580571][ T6657]  ? __init_swait_queue_head+0xa8/0x150
[  335.580605][ T6657]  gfs2_sys_fs_add+0x257/0x480
[  335.580630][ T6657]  ? is_dynamic_key+0x1aa/0x1c0
[  335.580653][ T6657]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  335.580687][ T6657]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  335.580734][ T6657]  gfs2_fill_super+0x1368/0x20f0
[  335.580768][ T6657]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.580786][ T6657]  ? rt_spin_unlock+0x157/0x200
[  335.580814][ T6657]  ? sb_set_blocksize+0x11b/0x210
[  335.580840][ T6657]  ? setup_bdev_super+0x586/0x680
[  335.580872][ T6657]  get_tree_bdev_flags+0x430/0x4f0
[  335.580901][ T6657]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.580920][ T6657]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  335.580950][ T6657]  ? rcu_is_watching+0x15/0xb0
[  335.580980][ T6657]  gfs2_get_tree+0x51/0x1e0
[  335.581003][ T6657]  vfs_get_tree+0x92/0x2a0
[  335.581033][ T6657]  do_new_mount+0x319/0xdc0
[  335.581054][ T6657]  ? cap_capable+0x123/0x460
[  335.581085][ T6657]  ? __pfx_do_new_mount+0x10/0x10
[  335.581111][ T6657]  ? ns_capable+0x89/0xe0
[  335.581138][ T6657]  ? path_mount+0x647/0x1050
[  335.581163][ T6657]  ? user_path_at+0xd4/0x160
[  335.581192][ T6657]  __se_sys_mount+0x31d/0x420
[  335.581222][ T6657]  ? __pfx___se_sys_mount+0x10/0x10
[  335.581251][ T6657]  ? __x64_sys_mount+0x20/0xc0
[  335.581277][ T6657]  do_syscall_64+0x17b/0x530
[  335.581306][ T6657]  ? irqentry_exit+0x10f/0x8f0
[  335.581333][ T6657]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.581354][ T6657]  ? clear_bhb_loop+0x40/0x90
[  335.581378][ T6657]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.581397][ T6657] RIP: 0033:0x7efc45b6f10a
[  335.581416][ T6657] 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
[  335.581434][ T6657] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  335.581463][ T6657] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  335.581478][ T6657] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  335.581492][ T6657] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  335.581506][ T6657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  335.581519][ T6657] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  335.581550][ T6657]  </TASK>
[  335.597803][ T6657] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  335.597824][ T6657] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  335.765362][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  335.842727][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  336.146290][ T6660] loop1: detected capacity change from 0 to 32768
[  336.162548][ T6660] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.162572][ T6660] CPU: 1 UID: 0 PID: 6660 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  336.162595][ T6660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  336.162606][ T6660] Call Trace:
[  336.162618][ T6660]  <TASK>
[  336.162626][ T6660]  dump_stack_lvl+0xe8/0x150
[  336.162658][ T6660]  sysfs_create_dir_ns+0x271/0x2a0
[  336.162684][ T6660]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.162712][ T6660]  ? rt_spin_unlock+0x163/0x200
[  336.162738][ T6660]  kobject_add_internal+0x62c/0xce0
[  336.162769][ T6660]  kobject_init_and_add+0x12b/0x1a0
[  336.162794][ T6660]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.162819][ T6660]  ? __raw_spin_lock_init+0x45/0x100
[  336.162840][ T6660]  ? __init_swait_queue_head+0xa8/0x150
[  336.162871][ T6660]  gfs2_sys_fs_add+0x257/0x480
[  336.162892][ T6660]  ? is_dynamic_key+0x1aa/0x1c0
[  336.162911][ T6660]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.162940][ T6660]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.162976][ T6660]  gfs2_fill_super+0x1368/0x20f0
[  336.163004][ T6660]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.163019][ T6660]  ? rt_spin_unlock+0x157/0x200
[  336.163041][ T6660]  ? sb_set_blocksize+0x11b/0x210
[  336.163072][ T6660]  ? setup_bdev_super+0x586/0x680
[  336.163098][ T6660]  get_tree_bdev_flags+0x430/0x4f0
[  336.163122][ T6660]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.163138][ T6660]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.163164][ T6660]  ? rcu_is_watching+0x15/0xb0
[  336.163190][ T6660]  gfs2_get_tree+0x51/0x1e0
[  336.163209][ T6660]  vfs_get_tree+0x92/0x2a0
[  336.163234][ T6660]  do_new_mount+0x319/0xdc0
[  336.163252][ T6660]  ? cap_capable+0x123/0x460
[  336.163278][ T6660]  ? __pfx_do_new_mount+0x10/0x10
[  336.163304][ T6660]  ? ns_capable+0x89/0xe0
[  336.163325][ T6660]  ? path_mount+0x647/0x1050
[  336.163347][ T6660]  ? user_path_at+0xd4/0x160
[  336.163370][ T6660]  __se_sys_mount+0x31d/0x420
[  336.163395][ T6660]  ? __pfx___se_sys_mount+0x10/0x10
[  336.163419][ T6660]  ? __x64_sys_mount+0x20/0xc0
[  336.163440][ T6660]  do_syscall_64+0x17b/0x530
[  336.163464][ T6660]  ? irqentry_exit+0x10f/0x8f0
[  336.163487][ T6660]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.163504][ T6660]  ? clear_bhb_loop+0x40/0x90
[  336.163524][ T6660]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.163541][ T6660] RIP: 0033:0x7efc45b6f10a
[  336.163557][ T6660] 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
[  336.163572][ T6660] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.163591][ T6660] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  336.163604][ T6660] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  336.163618][ T6660] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  336.163630][ T6660] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  336.163640][ T6660] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  336.163665][ T6660]  </TASK>
[  336.205250][ T6660] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.222737][ T6660] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.243707][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  336.503042][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  336.715308][ T6663] loop1: detected capacity change from 0 to 32768
[  336.733297][ T6663] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.733320][ T6663] CPU: 0 UID: 0 PID: 6663 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  336.733344][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  336.733355][ T6663] Call Trace:
[  336.733363][ T6663]  <TASK>
[  336.733372][ T6663]  dump_stack_lvl+0xe8/0x150
[  336.733407][ T6663]  sysfs_create_dir_ns+0x271/0x2a0
[  336.733436][ T6663]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.733466][ T6663]  ? rt_spin_unlock+0x163/0x200
[  336.733493][ T6663]  kobject_add_internal+0x62c/0xce0
[  336.733521][ T6663]  kobject_init_and_add+0x12b/0x1a0
[  336.733547][ T6663]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.733571][ T6663]  ? __raw_spin_lock_init+0x45/0x100
[  336.733593][ T6663]  ? __init_swait_queue_head+0xa8/0x150
[  336.733626][ T6663]  gfs2_sys_fs_add+0x257/0x480
[  336.733649][ T6663]  ? is_dynamic_key+0x1aa/0x1c0
[  336.733671][ T6663]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.733704][ T6663]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.733750][ T6663]  gfs2_fill_super+0x1368/0x20f0
[  336.733783][ T6663]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.733801][ T6663]  ? rt_spin_unlock+0x157/0x200
[  336.733828][ T6663]  ? sb_set_blocksize+0x11b/0x210
[  336.733854][ T6663]  ? setup_bdev_super+0x586/0x680
[  336.733886][ T6663]  get_tree_bdev_flags+0x430/0x4f0
[  336.733913][ T6663]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.733934][ T6663]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.733965][ T6663]  ? rcu_is_watching+0x15/0xb0
[  336.734005][ T6663]  gfs2_get_tree+0x51/0x1e0
[  336.734029][ T6663]  vfs_get_tree+0x92/0x2a0
[  336.734059][ T6663]  do_new_mount+0x319/0xdc0
[  336.734082][ T6663]  ? cap_capable+0x123/0x460
[  336.734113][ T6663]  ? __pfx_do_new_mount+0x10/0x10
[  336.734139][ T6663]  ? ns_capable+0x89/0xe0
[  336.734166][ T6663]  ? path_mount+0x647/0x1050
[  336.734191][ T6663]  ? user_path_at+0xd4/0x160
[  336.734219][ T6663]  __se_sys_mount+0x31d/0x420
[  336.734249][ T6663]  ? __pfx___se_sys_mount+0x10/0x10
[  336.734278][ T6663]  ? __x64_sys_mount+0x20/0xc0
[  336.734303][ T6663]  do_syscall_64+0x17b/0x530
[  336.734331][ T6663]  ? irqentry_exit+0x10f/0x8f0
[  336.734357][ T6663]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.734377][ T6663]  ? clear_bhb_loop+0x40/0x90
[  336.734401][ T6663]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.734421][ T6663] RIP: 0033:0x7efc45b6f10a
[  336.734438][ T6663] 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
[  336.734455][ T6663] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.734477][ T6663] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  336.734492][ T6663] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  336.734506][ T6663] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  336.734519][ T6663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  336.734532][ T6663] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  336.734563][ T6663]  </TASK>
[  336.736105][ T6663] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.736125][ T6663] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.935609][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  337.002730][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  337.295831][ T6666] loop1: detected capacity change from 0 to 32768
[  337.299742][ T6666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.299763][ T6666] CPU: 1 UID: 0 PID: 6666 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.299785][ T6666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  337.299796][ T6666] Call Trace:
[  337.299803][ T6666]  <TASK>
[  337.299814][ T6666]  dump_stack_lvl+0xe8/0x150
[  337.299849][ T6666]  sysfs_create_dir_ns+0x271/0x2a0
[  337.299877][ T6666]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.299906][ T6666]  ? rt_spin_unlock+0x163/0x200
[  337.299934][ T6666]  kobject_add_internal+0x62c/0xce0
[  337.299964][ T6666]  kobject_init_and_add+0x12b/0x1a0
[  337.299991][ T6666]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.300016][ T6666]  ? __raw_spin_lock_init+0x45/0x100
[  337.300037][ T6666]  ? __init_swait_queue_head+0xa8/0x150
[  337.300070][ T6666]  gfs2_sys_fs_add+0x257/0x480
[  337.300094][ T6666]  ? is_dynamic_key+0x1aa/0x1c0
[  337.300117][ T6666]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.300152][ T6666]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.300195][ T6666]  gfs2_fill_super+0x1368/0x20f0
[  337.300228][ T6666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.300246][ T6666]  ? rt_spin_unlock+0x157/0x200
[  337.300274][ T6666]  ? sb_set_blocksize+0x11b/0x210
[  337.300307][ T6666]  ? setup_bdev_super+0x586/0x680
[  337.300338][ T6666]  get_tree_bdev_flags+0x430/0x4f0
[  337.300366][ T6666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.300387][ T6666]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.300418][ T6666]  ? rcu_is_watching+0x15/0xb0
[  337.300450][ T6666]  gfs2_get_tree+0x51/0x1e0
[  337.300473][ T6666]  vfs_get_tree+0x92/0x2a0
[  337.300504][ T6666]  do_new_mount+0x319/0xdc0
[  337.300527][ T6666]  ? cap_capable+0x123/0x460
[  337.300558][ T6666]  ? __pfx_do_new_mount+0x10/0x10
[  337.300584][ T6666]  ? ns_capable+0x89/0xe0
[  337.300610][ T6666]  ? path_mount+0x647/0x1050
[  337.300637][ T6666]  ? user_path_at+0xd4/0x160
[  337.300666][ T6666]  __se_sys_mount+0x31d/0x420
[  337.300695][ T6666]  ? __pfx___se_sys_mount+0x10/0x10
[  337.300725][ T6666]  ? __x64_sys_mount+0x20/0xc0
[  337.300747][ T6666]  do_syscall_64+0x17b/0x530
[  337.300772][ T6666]  ? irqentry_exit+0x10f/0x8f0
[  337.300797][ T6666]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.300817][ T6666]  ? clear_bhb_loop+0x40/0x90
[  337.300839][ T6666]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.300858][ T6666] RIP: 0033:0x7efc45b6f10a
[  337.300877][ T6666] 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
[  337.300896][ T6666] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.300916][ T6666] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  337.300931][ T6666] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  337.300944][ T6666] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  337.300957][ T6666] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  337.300968][ T6666] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  337.300995][ T6666]  </TASK>
[  337.301059][ T6666] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.301074][ T6666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.510762][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  337.663333][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  337.854091][ T6669] loop1: detected capacity change from 0 to 32768
[  337.870931][ T6669] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.870954][ T6669] CPU: 0 UID: 0 PID: 6669 Comm: syz.1.248 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.870977][ T6669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  337.870988][ T6669] Call Trace:
[  337.870995][ T6669]  <TASK>
[  337.871004][ T6669]  dump_stack_lvl+0xe8/0x150
[  337.871038][ T6669]  sysfs_create_dir_ns+0x271/0x2a0
[  337.871067][ T6669]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.871096][ T6669]  ? rt_spin_unlock+0x163/0x200
[  337.871122][ T6669]  kobject_add_internal+0x62c/0xce0
[  337.871151][ T6669]  kobject_init_and_add+0x12b/0x1a0
[  337.871178][ T6669]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.871203][ T6669]  ? __raw_spin_lock_init+0x45/0x100
[  337.871225][ T6669]  ? __init_swait_queue_head+0xa8/0x150
[  337.871258][ T6669]  gfs2_sys_fs_add+0x257/0x480
[  337.871284][ T6669]  ? is_dynamic_key+0x1aa/0x1c0
[  337.871308][ T6669]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.871341][ T6669]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.871384][ T6669]  gfs2_fill_super+0x1368/0x20f0
[  337.871416][ T6669]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.871434][ T6669]  ? rt_spin_unlock+0x157/0x200
[  337.871461][ T6669]  ? sb_set_blocksize+0x11b/0x210
[  337.871485][ T6669]  ? setup_bdev_super+0x586/0x680
[  337.871517][ T6669]  get_tree_bdev_flags+0x430/0x4f0
[  337.871545][ T6669]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.871565][ T6669]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.871596][ T6669]  ? rcu_is_watching+0x15/0xb0
[  337.871628][ T6669]  gfs2_get_tree+0x51/0x1e0
[  337.871651][ T6669]  vfs_get_tree+0x92/0x2a0
[  337.871682][ T6669]  do_new_mount+0x319/0xdc0
[  337.871704][ T6669]  ? cap_capable+0x123/0x460
[  337.871745][ T6669]  ? __pfx_do_new_mount+0x10/0x10
[  337.871771][ T6669]  ? ns_capable+0x89/0xe0
[  337.871798][ T6669]  ? path_mount+0x647/0x1050
[  337.871824][ T6669]  ? user_path_at+0xd4/0x160
[  337.871851][ T6669]  __se_sys_mount+0x31d/0x420
[  337.871881][ T6669]  ? __pfx___se_sys_mount+0x10/0x10
[  337.871909][ T6669]  ? __x64_sys_mount+0x20/0xc0
[  337.871936][ T6669]  do_syscall_64+0x17b/0x530
[  337.871966][ T6669]  ? irqentry_exit+0x10f/0x8f0
[  337.871994][ T6669]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.872015][ T6669]  ? clear_bhb_loop+0x40/0x90
[  337.872039][ T6669]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.872059][ T6669] RIP: 0033:0x7efc45b6f10a
[  337.872079][ T6669] 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
[  337.872097][ T6669] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.872118][ T6669] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  337.872133][ T6669] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  337.872148][ T6669] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  337.872162][ T6669] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  337.872174][ T6669] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  337.872205][ T6669]  </TASK>
[  337.872231][ T6669] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.872247][ T6669] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.964613][ T6669] Flush: task=syz.1.248[6669] dev=loop1 state=2
[  338.052833][ T6669] Teardown: task=syz.1.248[6669] dev=loop1 state=2
[  338.481968][ T6672] loop1: detected capacity change from 0 to 32768
[  338.495123][ T6672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  338.495144][ T6672] CPU: 1 UID: 0 PID: 6672 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  338.495166][ T6672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  338.495177][ T6672] Call Trace:
[  338.495185][ T6672]  <TASK>
[  338.495193][ T6672]  dump_stack_lvl+0xe8/0x150
[  338.495228][ T6672]  sysfs_create_dir_ns+0x271/0x2a0
[  338.495255][ T6672]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  338.495284][ T6672]  ? rt_spin_unlock+0x163/0x200
[  338.495311][ T6672]  kobject_add_internal+0x62c/0xce0
[  338.495340][ T6672]  kobject_init_and_add+0x12b/0x1a0
[  338.495368][ T6672]  ? __pfx_kobject_init_and_add+0x10/0x10
[  338.495392][ T6672]  ? __raw_spin_lock_init+0x45/0x100
[  338.495414][ T6672]  ? __init_swait_queue_head+0xa8/0x150
[  338.495447][ T6672]  gfs2_sys_fs_add+0x257/0x480
[  338.495473][ T6672]  ? is_dynamic_key+0x1aa/0x1c0
[  338.495496][ T6672]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  338.495530][ T6672]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  338.495573][ T6672]  gfs2_fill_super+0x1368/0x20f0
[  338.495610][ T6672]  ? __pfx_gfs2_fill_super+0x10/0x10
[  338.495628][ T6672]  ? rt_spin_unlock+0x157/0x200
[  338.495653][ T6672]  ? sb_set_blocksize+0x11b/0x210
[  338.495679][ T6672]  ? setup_bdev_super+0x586/0x680
[  338.495711][ T6672]  get_tree_bdev_flags+0x430/0x4f0
[  338.495748][ T6672]  ? __pfx_gfs2_fill_super+0x10/0x10
[  338.495767][ T6672]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  338.495798][ T6672]  ? rcu_is_watching+0x15/0xb0
[  338.495828][ T6672]  gfs2_get_tree+0x51/0x1e0
[  338.495851][ T6672]  vfs_get_tree+0x92/0x2a0
[  338.495879][ T6672]  do_new_mount+0x319/0xdc0
[  338.495901][ T6672]  ? cap_capable+0x123/0x460
[  338.495932][ T6672]  ? __pfx_do_new_mount+0x10/0x10
[  338.495956][ T6672]  ? ns_capable+0x89/0xe0
[  338.495981][ T6672]  ? path_mount+0x647/0x1050
[  338.496008][ T6672]  ? user_path_at+0xd4/0x160
[  338.496036][ T6672]  __se_sys_mount+0x31d/0x420
[  338.496066][ T6672]  ? __pfx___se_sys_mount+0x10/0x10
[  338.496096][ T6672]  ? __x64_sys_mount+0x20/0xc0
[  338.496121][ T6672]  do_syscall_64+0x17b/0x530
[  338.496150][ T6672]  ? irqentry_exit+0x10f/0x8f0
[  338.496178][ T6672]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.496199][ T6672]  ? clear_bhb_loop+0x40/0x90
[  338.496224][ T6672]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.496243][ T6672] RIP: 0033:0x7efc45b6f10a
[  338.496263][ T6672] 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
[  338.496281][ T6672] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  338.496302][ T6672] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  338.496318][ T6672] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  338.496333][ T6672] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  338.496347][ T6672] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  338.496359][ T6672] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  338.496389][ T6672]  </TASK>
[  338.497654][ T6672] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  338.497673][ T6672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  338.582491][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  338.656549][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  339.051699][ T6675] loop1: detected capacity change from 0 to 32768
[  339.072602][ T6675] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.072747][ T6675] CPU: 0 UID: 0 PID: 6675 Comm: syz.1.250 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.072771][ T6675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  339.072782][ T6675] Call Trace:
[  339.072790][ T6675]  <TASK>
[  339.072798][ T6675]  dump_stack_lvl+0xe8/0x150
[  339.072833][ T6675]  sysfs_create_dir_ns+0x271/0x2a0
[  339.072883][ T6675]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.072913][ T6675]  ? rt_spin_unlock+0x163/0x200
[  339.072939][ T6675]  kobject_add_internal+0x62c/0xce0
[  339.072966][ T6675]  kobject_init_and_add+0x12b/0x1a0
[  339.072993][ T6675]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.073016][ T6675]  ? __raw_spin_lock_init+0x45/0x100
[  339.073038][ T6675]  ? __init_swait_queue_head+0xa8/0x150
[  339.073070][ T6675]  gfs2_sys_fs_add+0x257/0x480
[  339.073094][ T6675]  ? is_dynamic_key+0x1aa/0x1c0
[  339.073115][ T6675]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.073148][ T6675]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.073199][ T6675]  gfs2_fill_super+0x1368/0x20f0
[  339.073233][ T6675]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.073251][ T6675]  ? rt_spin_unlock+0x157/0x200
[  339.073279][ T6675]  ? sb_set_blocksize+0x11b/0x210
[  339.073306][ T6675]  ? setup_bdev_super+0x586/0x680
[  339.073337][ T6675]  get_tree_bdev_flags+0x430/0x4f0
[  339.073367][ T6675]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.073385][ T6675]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.073416][ T6675]  ? rcu_is_watching+0x15/0xb0
[  339.073448][ T6675]  gfs2_get_tree+0x51/0x1e0
[  339.073472][ T6675]  vfs_get_tree+0x92/0x2a0
[  339.073503][ T6675]  do_new_mount+0x319/0xdc0
[  339.073526][ T6675]  ? cap_capable+0x123/0x460
[  339.073558][ T6675]  ? __pfx_do_new_mount+0x10/0x10
[  339.073584][ T6675]  ? ns_capable+0x89/0xe0
[  339.073611][ T6675]  ? path_mount+0x647/0x1050
[  339.073638][ T6675]  ? user_path_at+0xd4/0x160
[  339.073667][ T6675]  __se_sys_mount+0x31d/0x420
[  339.073697][ T6675]  ? __pfx___se_sys_mount+0x10/0x10
[  339.073729][ T6675]  ? __x64_sys_mount+0x20/0xc0
[  339.073755][ T6675]  do_syscall_64+0x17b/0x530
[  339.073785][ T6675]  ? irqentry_exit+0x10f/0x8f0
[  339.073812][ T6675]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.073833][ T6675]  ? clear_bhb_loop+0x40/0x90
[  339.073861][ T6675]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.073880][ T6675] RIP: 0033:0x7efc45b6f10a
[  339.073899][ T6675] 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
[  339.073917][ T6675] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.073939][ T6675] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  339.073955][ T6675] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  339.073969][ T6675] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  339.073983][ T6675] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  339.073996][ T6675] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  339.074028][ T6675]  </TASK>
[  339.075544][ T6675] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  339.075561][ T6675] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  339.188294][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  339.262773][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  339.646267][ T6678] loop1: detected capacity change from 0 to 32768
[  339.654783][ T6678] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.654806][ T6678] CPU: 0 UID: 0 PID: 6678 Comm: syz.1.251 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.654829][ T6678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  339.654839][ T6678] Call Trace:
[  339.654847][ T6678]  <TASK>
[  339.654855][ T6678]  dump_stack_lvl+0xe8/0x150
[  339.654888][ T6678]  sysfs_create_dir_ns+0x271/0x2a0
[  339.654915][ T6678]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.654944][ T6678]  ? rt_spin_unlock+0x163/0x200
[  339.654970][ T6678]  kobject_add_internal+0x62c/0xce0
[  339.654997][ T6678]  kobject_init_and_add+0x12b/0x1a0
[  339.655023][ T6678]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.655046][ T6678]  ? __raw_spin_lock_init+0x45/0x100
[  339.655066][ T6678]  ? __init_swait_queue_head+0xa8/0x150
[  339.655098][ T6678]  gfs2_sys_fs_add+0x257/0x480
[  339.655123][ T6678]  ? is_dynamic_key+0x1aa/0x1c0
[  339.655146][ T6678]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.655179][ T6678]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.655222][ T6678]  gfs2_fill_super+0x1368/0x20f0
[  339.655255][ T6678]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.655272][ T6678]  ? rt_spin_unlock+0x157/0x200
[  339.655299][ T6678]  ? sb_set_blocksize+0x11b/0x210
[  339.655323][ T6678]  ? setup_bdev_super+0x586/0x680
[  339.655353][ T6678]  get_tree_bdev_flags+0x430/0x4f0
[  339.655382][ T6678]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.655401][ T6678]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.655431][ T6678]  ? rcu_is_watching+0x15/0xb0
[  339.655462][ T6678]  gfs2_get_tree+0x51/0x1e0
[  339.655485][ T6678]  vfs_get_tree+0x92/0x2a0
[  339.655517][ T6678]  do_new_mount+0x319/0xdc0
[  339.655540][ T6678]  ? cap_capable+0x123/0x460
[  339.655571][ T6678]  ? __pfx_do_new_mount+0x10/0x10
[  339.655596][ T6678]  ? ns_capable+0x89/0xe0
[  339.655622][ T6678]  ? path_mount+0x647/0x1050
[  339.655648][ T6678]  ? user_path_at+0xd4/0x160
[  339.655675][ T6678]  __se_sys_mount+0x31d/0x420
[  339.655706][ T6678]  ? __pfx___se_sys_mount+0x10/0x10
[  339.655736][ T6678]  ? __x64_sys_mount+0x20/0xc0
[  339.655762][ T6678]  do_syscall_64+0x17b/0x530
[  339.655799][ T6678]  ? irqentry_exit+0x10f/0x8f0
[  339.655827][ T6678]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.655847][ T6678]  ? clear_bhb_loop+0x40/0x90
[  339.655870][ T6678]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.655889][ T6678] RIP: 0033:0x7efc45b6f10a
[  339.655909][ T6678] 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
[  339.655935][ T6678] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.655955][ T6678] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  339.655970][ T6678] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  339.655985][ T6678] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  339.656001][ T6678] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  339.656013][ T6678] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  339.656043][ T6678]  </TASK>
[  339.679759][ T6678] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  339.679981][ T6678] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.036753][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  340.112854][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  340.149060][ T6681] loop1: detected capacity change from 0 to 32768
[  340.164101][ T6681] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.164124][ T6681] CPU: 0 UID: 0 PID: 6681 Comm: syz.1.252 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.164147][ T6681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  340.164158][ T6681] Call Trace:
[  340.164166][ T6681]  <TASK>
[  340.164174][ T6681]  dump_stack_lvl+0xe8/0x150
[  340.164207][ T6681]  sysfs_create_dir_ns+0x271/0x2a0
[  340.164233][ T6681]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.164258][ T6681]  ? rt_spin_unlock+0x163/0x200
[  340.164284][ T6681]  kobject_add_internal+0x62c/0xce0
[  340.164313][ T6681]  kobject_init_and_add+0x12b/0x1a0
[  340.164341][ T6681]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.164366][ T6681]  ? __raw_spin_lock_init+0x45/0x100
[  340.164388][ T6681]  ? __init_swait_queue_head+0xa8/0x150
[  340.164420][ T6681]  gfs2_sys_fs_add+0x257/0x480
[  340.164445][ T6681]  ? is_dynamic_key+0x1aa/0x1c0
[  340.164467][ T6681]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.164503][ T6681]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.164548][ T6681]  gfs2_fill_super+0x1368/0x20f0
[  340.164583][ T6681]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.164602][ T6681]  ? rt_spin_unlock+0x157/0x200
[  340.164629][ T6681]  ? sb_set_blocksize+0x11b/0x210
[  340.164654][ T6681]  ? setup_bdev_super+0x586/0x680
[  340.164686][ T6681]  get_tree_bdev_flags+0x430/0x4f0
[  340.164714][ T6681]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.164734][ T6681]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.164766][ T6681]  ? rcu_is_watching+0x15/0xb0
[  340.164798][ T6681]  gfs2_get_tree+0x51/0x1e0
[  340.164822][ T6681]  vfs_get_tree+0x92/0x2a0
[  340.164853][ T6681]  do_new_mount+0x319/0xdc0
[  340.164876][ T6681]  ? cap_capable+0x123/0x460
[  340.164908][ T6681]  ? __pfx_do_new_mount+0x10/0x10
[  340.164934][ T6681]  ? ns_capable+0x89/0xe0
[  340.164961][ T6681]  ? path_mount+0x647/0x1050
[  340.164988][ T6681]  ? user_path_at+0xd4/0x160
[  340.165017][ T6681]  __se_sys_mount+0x31d/0x420
[  340.165053][ T6681]  ? __pfx___se_sys_mount+0x10/0x10
[  340.165083][ T6681]  ? __x64_sys_mount+0x20/0xc0
[  340.165110][ T6681]  do_syscall_64+0x17b/0x530
[  340.165139][ T6681]  ? irqentry_exit+0x10f/0x8f0
[  340.165166][ T6681]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.165186][ T6681]  ? clear_bhb_loop+0x40/0x90
[  340.165211][ T6681]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.165231][ T6681] RIP: 0033:0x7efc45b6f10a
[  340.165250][ T6681] 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
[  340.165268][ T6681] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.165290][ T6681] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  340.165305][ T6681] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  340.165319][ T6681] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  340.165333][ T6681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
2026/07/20 04:59:46 executed programs: 238
[  340.165346][ T6681] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  340.165377][ T6681]  </TASK>
[  340.166900][ T6681] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.166919][ T6681] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.243932][ T6681] Flush: task=syz.1.252[6681] dev=loop1 state=2
[  340.342809][ T6681] Teardown: task=syz.1.252[6681] dev=loop1 state=2
[  340.787320][ T6684] loop1: detected capacity change from 0 to 32768
[  340.795521][ T6684] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.795543][ T6684] CPU: 1 UID: 0 PID: 6684 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.795565][ T6684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  340.795577][ T6684] Call Trace:
[  340.795584][ T6684]  <TASK>
[  340.795593][ T6684]  dump_stack_lvl+0xe8/0x150
[  340.795626][ T6684]  sysfs_create_dir_ns+0x271/0x2a0
[  340.795653][ T6684]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.795681][ T6684]  ? rt_spin_unlock+0x163/0x200
[  340.795708][ T6684]  kobject_add_internal+0x62c/0xce0
[  340.795736][ T6684]  kobject_init_and_add+0x12b/0x1a0
[  340.795763][ T6684]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.795787][ T6684]  ? __raw_spin_lock_init+0x45/0x100
[  340.795808][ T6684]  ? __init_swait_queue_head+0xa8/0x150
[  340.795840][ T6684]  gfs2_sys_fs_add+0x257/0x480
[  340.795865][ T6684]  ? is_dynamic_key+0x1aa/0x1c0
[  340.795887][ T6684]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.795925][ T6684]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.795968][ T6684]  gfs2_fill_super+0x1368/0x20f0
[  340.796007][ T6684]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.796027][ T6684]  ? rt_spin_unlock+0x157/0x200
[  340.796054][ T6684]  ? sb_set_blocksize+0x11b/0x210
[  340.796079][ T6684]  ? setup_bdev_super+0x586/0x680
[  340.796110][ T6684]  get_tree_bdev_flags+0x430/0x4f0
[  340.796137][ T6684]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.796157][ T6684]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.796187][ T6684]  ? rcu_is_watching+0x15/0xb0
[  340.796218][ T6684]  gfs2_get_tree+0x51/0x1e0
[  340.796240][ T6684]  vfs_get_tree+0x92/0x2a0
[  340.796270][ T6684]  do_new_mount+0x319/0xdc0
[  340.796292][ T6684]  ? cap_capable+0x123/0x460
[  340.796322][ T6684]  ? __pfx_do_new_mount+0x10/0x10
[  340.796346][ T6684]  ? ns_capable+0x89/0xe0
[  340.796372][ T6684]  ? path_mount+0x647/0x1050
[  340.796397][ T6684]  ? user_path_at+0xd4/0x160
[  340.796424][ T6684]  __se_sys_mount+0x31d/0x420
[  340.796453][ T6684]  ? __pfx___se_sys_mount+0x10/0x10
[  340.796481][ T6684]  ? __x64_sys_mount+0x20/0xc0
[  340.796508][ T6684]  do_syscall_64+0x17b/0x530
[  340.796536][ T6684]  ? irqentry_exit+0x10f/0x8f0
[  340.796562][ T6684]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.796582][ T6684]  ? clear_bhb_loop+0x40/0x90
[  340.796606][ T6684]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.796625][ T6684] RIP: 0033:0x7efc45b6f10a
[  340.796643][ T6684] 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
[  340.796660][ T6684] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.796682][ T6684] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  340.796697][ T6684] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  340.796711][ T6684] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  340.796724][ T6684] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  340.796737][ T6684] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  340.796767][ T6684]  </TASK>
[  340.799497][ T6684] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.799517][ T6684] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.892290][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  340.973413][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  341.359022][ T6687] loop1: detected capacity change from 0 to 32768
[  341.367406][ T6687] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  341.367428][ T6687] CPU: 1 UID: 0 PID: 6687 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  341.367451][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  341.367462][ T6687] Call Trace:
[  341.367470][ T6687]  <TASK>
[  341.367485][ T6687]  dump_stack_lvl+0xe8/0x150
[  341.367519][ T6687]  sysfs_create_dir_ns+0x271/0x2a0
[  341.367547][ T6687]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  341.367575][ T6687]  ? rt_spin_unlock+0x163/0x200
[  341.367602][ T6687]  kobject_add_internal+0x62c/0xce0
[  341.367630][ T6687]  kobject_init_and_add+0x12b/0x1a0
[  341.367657][ T6687]  ? __pfx_kobject_init_and_add+0x10/0x10
[  341.367681][ T6687]  ? __raw_spin_lock_init+0x45/0x100
[  341.367701][ T6687]  ? __init_swait_queue_head+0xa8/0x150
[  341.367733][ T6687]  gfs2_sys_fs_add+0x257/0x480
[  341.367758][ T6687]  ? is_dynamic_key+0x1aa/0x1c0
[  341.367781][ T6687]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  341.367814][ T6687]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  341.367857][ T6687]  gfs2_fill_super+0x1368/0x20f0
[  341.367889][ T6687]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.367907][ T6687]  ? rt_spin_unlock+0x157/0x200
[  341.367933][ T6687]  ? sb_set_blocksize+0x11b/0x210
[  341.367963][ T6687]  ? setup_bdev_super+0x586/0x680
[  341.367993][ T6687]  get_tree_bdev_flags+0x430/0x4f0
[  341.368021][ T6687]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.368040][ T6687]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  341.368071][ T6687]  ? rcu_is_watching+0x15/0xb0
[  341.368102][ T6687]  gfs2_get_tree+0x51/0x1e0
[  341.368124][ T6687]  vfs_get_tree+0x92/0x2a0
[  341.368154][ T6687]  do_new_mount+0x319/0xdc0
[  341.368176][ T6687]  ? cap_capable+0x123/0x460
[  341.368207][ T6687]  ? __pfx_do_new_mount+0x10/0x10
[  341.368232][ T6687]  ? ns_capable+0x89/0xe0
[  341.368258][ T6687]  ? path_mount+0x647/0x1050
[  341.368284][ T6687]  ? user_path_at+0xd4/0x160
[  341.368312][ T6687]  __se_sys_mount+0x31d/0x420
[  341.368340][ T6687]  ? __pfx___se_sys_mount+0x10/0x10
[  341.368369][ T6687]  ? __x64_sys_mount+0x20/0xc0
[  341.368394][ T6687]  do_syscall_64+0x17b/0x530
[  341.368422][ T6687]  ? irqentry_exit+0x10f/0x8f0
[  341.368448][ T6687]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.368471][ T6687]  ? clear_bhb_loop+0x40/0x90
[  341.368501][ T6687]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.368520][ T6687] RIP: 0033:0x7efc45b6f10a
[  341.368538][ T6687] 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
[  341.368556][ T6687] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  341.368577][ T6687] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  341.368592][ T6687] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  341.368606][ T6687] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  341.368620][ T6687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  341.368632][ T6687] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  341.368662][ T6687]  </TASK>
[  341.370195][ T6687] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  341.370212][ T6687] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  341.763219][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  341.832761][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  341.863174][ T6690] loop1: detected capacity change from 0 to 32768
[  341.884626][ T6690] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  341.884649][ T6690] CPU: 0 UID: 0 PID: 6690 Comm: syz.1.255 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  341.884672][ T6690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  341.884684][ T6690] Call Trace:
[  341.884691][ T6690]  <TASK>
[  341.884700][ T6690]  dump_stack_lvl+0xe8/0x150
[  341.884735][ T6690]  sysfs_create_dir_ns+0x271/0x2a0
[  341.884764][ T6690]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  341.884794][ T6690]  ? rt_spin_unlock+0x163/0x200
[  341.884823][ T6690]  kobject_add_internal+0x62c/0xce0
[  341.884853][ T6690]  kobject_init_and_add+0x12b/0x1a0
[  341.884881][ T6690]  ? __pfx_kobject_init_and_add+0x10/0x10
[  341.884905][ T6690]  ? __raw_spin_lock_init+0x45/0x100
[  341.884927][ T6690]  ? __init_swait_queue_head+0xa8/0x150
[  341.884961][ T6690]  gfs2_sys_fs_add+0x257/0x480
[  341.884985][ T6690]  ? is_dynamic_key+0x1aa/0x1c0
[  341.885008][ T6690]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  341.885044][ T6690]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  341.885089][ T6690]  gfs2_fill_super+0x1368/0x20f0
[  341.885126][ T6690]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.885145][ T6690]  ? rt_spin_unlock+0x157/0x200
[  341.885174][ T6690]  ? sb_set_blocksize+0x11b/0x210
[  341.885200][ T6690]  ? setup_bdev_super+0x586/0x680
[  341.885233][ T6690]  get_tree_bdev_flags+0x430/0x4f0
[  341.885262][ T6690]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.885282][ T6690]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  341.885314][ T6690]  ? rcu_is_watching+0x15/0xb0
[  341.885346][ T6690]  gfs2_get_tree+0x51/0x1e0
[  341.885370][ T6690]  vfs_get_tree+0x92/0x2a0
[  341.885402][ T6690]  do_new_mount+0x319/0xdc0
[  341.885425][ T6690]  ? cap_capable+0x123/0x460
[  341.885458][ T6690]  ? __pfx_do_new_mount+0x10/0x10
[  341.885490][ T6690]  ? ns_capable+0x89/0xe0
[  341.885518][ T6690]  ? path_mount+0x647/0x1050
[  341.885545][ T6690]  ? user_path_at+0xd4/0x160
[  341.885574][ T6690]  __se_sys_mount+0x31d/0x420
[  341.885605][ T6690]  ? __pfx___se_sys_mount+0x10/0x10
[  341.885634][ T6690]  ? __x64_sys_mount+0x20/0xc0
[  341.885661][ T6690]  do_syscall_64+0x17b/0x530
[  341.885691][ T6690]  ? irqentry_exit+0x10f/0x8f0
[  341.885719][ T6690]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.885739][ T6690]  ? clear_bhb_loop+0x40/0x90
[  341.885764][ T6690]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.885784][ T6690] RIP: 0033:0x7efc45b6f10a
[  341.885803][ T6690] 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
[  341.885822][ T6690] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  341.885843][ T6690] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  341.885859][ T6690] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  341.885873][ T6690] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  341.885887][ T6690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  341.885900][ T6690] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  341.885935][ T6690]  </TASK>
[  341.886017][ T6690] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  341.886033][ T6690] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  341.945887][ T6690] Flush: task=syz.1.255[6690] dev=loop1 state=2
[  342.123466][ T6690] Teardown: task=syz.1.255[6690] dev=loop1 state=2
[  342.543285][ T6693] loop1: detected capacity change from 0 to 32768
[  342.572027][ T6693] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  342.572050][ T6693] CPU: 0 UID: 0 PID: 6693 Comm: syz.1.256 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  342.572073][ T6693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  342.572085][ T6693] Call Trace:
[  342.572093][ T6693]  <TASK>
[  342.572102][ T6693]  dump_stack_lvl+0xe8/0x150
[  342.572136][ T6693]  sysfs_create_dir_ns+0x271/0x2a0
[  342.572163][ T6693]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  342.572192][ T6693]  ? rt_spin_unlock+0x163/0x200
[  342.572219][ T6693]  kobject_add_internal+0x62c/0xce0
[  342.572248][ T6693]  kobject_init_and_add+0x12b/0x1a0
[  342.572274][ T6693]  ? __pfx_kobject_init_and_add+0x10/0x10
[  342.572298][ T6693]  ? __raw_spin_lock_init+0x45/0x100
[  342.572319][ T6693]  ? __init_swait_queue_head+0xa8/0x150
[  342.572353][ T6693]  gfs2_sys_fs_add+0x257/0x480
[  342.572377][ T6693]  ? is_dynamic_key+0x1aa/0x1c0
[  342.572401][ T6693]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  342.572436][ T6693]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  342.572479][ T6693]  gfs2_fill_super+0x1368/0x20f0
[  342.572511][ T6693]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.572528][ T6693]  ? rt_spin_unlock+0x157/0x200
[  342.572569][ T6693]  ? sb_set_blocksize+0x11b/0x210
[  342.572594][ T6693]  ? setup_bdev_super+0x586/0x680
[  342.572628][ T6693]  get_tree_bdev_flags+0x430/0x4f0
[  342.572652][ T6693]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.572669][ T6693]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  342.572697][ T6693]  ? rcu_is_watching+0x15/0xb0
[  342.572726][ T6693]  gfs2_get_tree+0x51/0x1e0
[  342.572747][ T6693]  vfs_get_tree+0x92/0x2a0
[  342.572775][ T6693]  do_new_mount+0x319/0xdc0
[  342.572798][ T6693]  ? cap_capable+0x123/0x460
[  342.572826][ T6693]  ? __pfx_do_new_mount+0x10/0x10
[  342.572850][ T6693]  ? ns_capable+0x89/0xe0
[  342.572883][ T6693]  ? path_mount+0x647/0x1050
[  342.572908][ T6693]  ? user_path_at+0xd4/0x160
[  342.572937][ T6693]  __se_sys_mount+0x31d/0x420
[  342.572967][ T6693]  ? __pfx___se_sys_mount+0x10/0x10
[  342.572997][ T6693]  ? __x64_sys_mount+0x20/0xc0
[  342.573023][ T6693]  do_syscall_64+0x17b/0x530
[  342.573053][ T6693]  ? irqentry_exit+0x10f/0x8f0
[  342.573080][ T6693]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.573101][ T6693]  ? clear_bhb_loop+0x40/0x90
[  342.573126][ T6693]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.573146][ T6693] RIP: 0033:0x7efc45b6f10a
[  342.573170][ T6693] 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
[  342.573188][ T6693] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  342.573209][ T6693] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  342.573224][ T6693] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  342.573237][ T6693] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  342.573250][ T6693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  342.573263][ T6693] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  342.573295][ T6693]  </TASK>
[  342.702800][ T6693] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  342.702821][ T6693] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  342.722126][ T6693] Flush: task=syz.1.256[6693] dev=loop1 state=2
[  342.852812][ T6693] Teardown: task=syz.1.256[6693] dev=loop1 state=2
[  343.246344][ T6696] loop1: detected capacity change from 0 to 32768
[  343.262380][ T6696] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.262403][ T6696] CPU: 0 UID: 0 PID: 6696 Comm: syz.1.257 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.262426][ T6696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  343.262438][ T6696] Call Trace:
[  343.262446][ T6696]  <TASK>
[  343.262455][ T6696]  dump_stack_lvl+0xe8/0x150
[  343.262492][ T6696]  sysfs_create_dir_ns+0x271/0x2a0
[  343.262520][ T6696]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.262548][ T6696]  ? rt_spin_unlock+0x163/0x200
[  343.262576][ T6696]  kobject_add_internal+0x62c/0xce0
[  343.262606][ T6696]  kobject_init_and_add+0x12b/0x1a0
[  343.262631][ T6696]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.262652][ T6696]  ? __raw_spin_lock_init+0x45/0x100
[  343.262671][ T6696]  ? __init_swait_queue_head+0xa8/0x150
[  343.262702][ T6696]  gfs2_sys_fs_add+0x257/0x480
[  343.262726][ T6696]  ? is_dynamic_key+0x1aa/0x1c0
[  343.262748][ T6696]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.262780][ T6696]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.262834][ T6696]  gfs2_fill_super+0x1368/0x20f0
[  343.262865][ T6696]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.262883][ T6696]  ? rt_spin_unlock+0x157/0x200
[  343.262910][ T6696]  ? sb_set_blocksize+0x11b/0x210
[  343.262936][ T6696]  ? setup_bdev_super+0x586/0x680
[  343.262968][ T6696]  get_tree_bdev_flags+0x430/0x4f0
[  343.263002][ T6696]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.263022][ T6696]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.263053][ T6696]  ? rcu_is_watching+0x15/0xb0
[  343.263083][ T6696]  gfs2_get_tree+0x51/0x1e0
[  343.263106][ T6696]  vfs_get_tree+0x92/0x2a0
[  343.263135][ T6696]  do_new_mount+0x319/0xdc0
[  343.263159][ T6696]  ? cap_capable+0x123/0x460
[  343.263191][ T6696]  ? __pfx_do_new_mount+0x10/0x10
[  343.263217][ T6696]  ? ns_capable+0x89/0xe0
[  343.263244][ T6696]  ? path_mount+0x647/0x1050
[  343.263269][ T6696]  ? user_path_at+0xd4/0x160
[  343.263296][ T6696]  __se_sys_mount+0x31d/0x420
[  343.263326][ T6696]  ? __pfx___se_sys_mount+0x10/0x10
[  343.263353][ T6696]  ? __x64_sys_mount+0x20/0xc0
[  343.263378][ T6696]  do_syscall_64+0x17b/0x530
[  343.263404][ T6696]  ? irqentry_exit+0x10f/0x8f0
[  343.263430][ T6696]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.263451][ T6696]  ? clear_bhb_loop+0x40/0x90
[  343.263474][ T6696]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.263494][ T6696] RIP: 0033:0x7efc45b6f10a
[  343.263513][ T6696] 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
[  343.263531][ T6696] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.263552][ T6696] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  343.263567][ T6696] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  343.263581][ T6696] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  343.263594][ T6696] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  343.263608][ T6696] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  343.263638][ T6696]  </TASK>
[  343.328201][ T6696] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  343.328223][ T6696] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  343.354986][ T6696] Flush: task=syz.1.257[6696] dev=loop1 state=2
[  343.433140][ T6696] Teardown: task=syz.1.257[6696] dev=loop1 state=2
[  343.874122][ T6699] loop1: detected capacity change from 0 to 32768
[  343.890217][ T6699] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.890231][ T6699] CPU: 1 UID: 0 PID: 6699 Comm: syz.1.258 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.890244][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  343.890251][ T6699] Call Trace:
[  343.890255][ T6699]  <TASK>
[  343.890260][ T6699]  dump_stack_lvl+0xe8/0x150
[  343.890283][ T6699]  sysfs_create_dir_ns+0x271/0x2a0
[  343.890298][ T6699]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.890313][ T6699]  ? rt_spin_unlock+0x163/0x200
[  343.890329][ T6699]  kobject_add_internal+0x62c/0xce0
[  343.890344][ T6699]  kobject_init_and_add+0x12b/0x1a0
[  343.890358][ T6699]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.890370][ T6699]  ? __raw_spin_lock_init+0x45/0x100
[  343.890382][ T6699]  ? __init_swait_queue_head+0xa8/0x150
[  343.890400][ T6699]  gfs2_sys_fs_add+0x257/0x480
[  343.890413][ T6699]  ? is_dynamic_key+0x1aa/0x1c0
[  343.890425][ T6699]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.890443][ T6699]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.890466][ T6699]  gfs2_fill_super+0x1368/0x20f0
[  343.890483][ T6699]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.890492][ T6699]  ? rt_spin_unlock+0x157/0x200
[  343.890507][ T6699]  ? sb_set_blocksize+0x11b/0x210
[  343.890521][ T6699]  ? setup_bdev_super+0x586/0x680
[  343.890537][ T6699]  get_tree_bdev_flags+0x430/0x4f0
[  343.890552][ T6699]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.890562][ T6699]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.890578][ T6699]  ? rcu_is_watching+0x15/0xb0
[  343.890595][ T6699]  gfs2_get_tree+0x51/0x1e0
[  343.890607][ T6699]  vfs_get_tree+0x92/0x2a0
[  343.890622][ T6699]  do_new_mount+0x319/0xdc0
[  343.890634][ T6699]  ? cap_capable+0x123/0x460
[  343.890651][ T6699]  ? __pfx_do_new_mount+0x10/0x10
[  343.890667][ T6699]  ? ns_capable+0x89/0xe0
[  343.890690][ T6699]  ? path_mount+0x647/0x1050
[  343.890716][ T6699]  ? user_path_at+0xd4/0x160
[  343.890731][ T6699]  __se_sys_mount+0x31d/0x420
[  343.890746][ T6699]  ? __pfx___se_sys_mount+0x10/0x10
[  343.890767][ T6699]  ? __x64_sys_mount+0x20/0xc0
[  343.890780][ T6699]  do_syscall_64+0x17b/0x530
[  343.890796][ T6699]  ? irqentry_exit+0x10f/0x8f0
[  343.890815][ T6699]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.890826][ T6699]  ? clear_bhb_loop+0x40/0x90
[  343.890839][ T6699]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.890849][ T6699] RIP: 0033:0x7efc45b6f10a
[  343.890861][ T6699] 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
[  343.890870][ T6699] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.890882][ T6699] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  343.890893][ T6699] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  343.890901][ T6699] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  343.890908][ T6699] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  343.890914][ T6699] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  343.890930][ T6699]  </TASK>
[  343.890953][ T6699] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  343.890962][ T6699] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  344.124296][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  344.212825][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  344.434327][ T6702] loop1: detected capacity change from 0 to 32768
[  344.437602][ T6702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  344.437624][ T6702] CPU: 1 UID: 0 PID: 6702 Comm: syz.1.259 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  344.437645][ T6702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  344.437657][ T6702] Call Trace:
[  344.437664][ T6702]  <TASK>
[  344.437672][ T6702]  dump_stack_lvl+0xe8/0x150
[  344.437705][ T6702]  sysfs_create_dir_ns+0x271/0x2a0
[  344.437742][ T6702]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  344.437769][ T6702]  ? rt_spin_unlock+0x163/0x200
[  344.437795][ T6702]  kobject_add_internal+0x62c/0xce0
[  344.437824][ T6702]  kobject_init_and_add+0x12b/0x1a0
[  344.437851][ T6702]  ? __pfx_kobject_init_and_add+0x10/0x10
[  344.437874][ T6702]  ? __raw_spin_lock_init+0x45/0x100
[  344.437894][ T6702]  ? __init_swait_queue_head+0xa8/0x150
[  344.437926][ T6702]  gfs2_sys_fs_add+0x257/0x480
[  344.437951][ T6702]  ? is_dynamic_key+0x1aa/0x1c0
[  344.437973][ T6702]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  344.438008][ T6702]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  344.438052][ T6702]  gfs2_fill_super+0x1368/0x20f0
[  344.438088][ T6702]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.438106][ T6702]  ? rt_spin_unlock+0x157/0x200
[  344.438134][ T6702]  ? sb_set_blocksize+0x11b/0x210
[  344.438160][ T6702]  ? setup_bdev_super+0x586/0x680
[  344.438191][ T6702]  get_tree_bdev_flags+0x430/0x4f0
[  344.438219][ T6702]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.438238][ T6702]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  344.438270][ T6702]  ? rcu_is_watching+0x15/0xb0
[  344.438301][ T6702]  gfs2_get_tree+0x51/0x1e0
[  344.438325][ T6702]  vfs_get_tree+0x92/0x2a0
[  344.438355][ T6702]  do_new_mount+0x319/0xdc0
[  344.438378][ T6702]  ? cap_capable+0x123/0x460
[  344.438409][ T6702]  ? __pfx_do_new_mount+0x10/0x10
[  344.438435][ T6702]  ? ns_capable+0x89/0xe0
[  344.438461][ T6702]  ? path_mount+0x647/0x1050
[  344.438487][ T6702]  ? user_path_at+0xd4/0x160
[  344.438516][ T6702]  __se_sys_mount+0x31d/0x420
[  344.438545][ T6702]  ? __pfx___se_sys_mount+0x10/0x10
[  344.438573][ T6702]  ? __x64_sys_mount+0x20/0xc0
[  344.438598][ T6702]  do_syscall_64+0x17b/0x530
[  344.438626][ T6702]  ? irqentry_exit+0x10f/0x8f0
[  344.438653][ T6702]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.438673][ T6702]  ? clear_bhb_loop+0x40/0x90
[  344.438698][ T6702]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.438718][ T6702] RIP: 0033:0x7efc45b6f10a
[  344.438743][ T6702] 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
[  344.438761][ T6702] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  344.438783][ T6702] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  344.438798][ T6702] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  344.438813][ T6702] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  344.438826][ T6702] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  344.438840][ T6702] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  344.438871][ T6702]  </TASK>
[  344.441870][ T6702] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  344.441889][ T6702] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  344.664125][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  344.763051][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  345.059203][ T6705] loop1: detected capacity change from 0 to 32768
[  345.078435][ T6705] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  345.078459][ T6705] CPU: 1 UID: 0 PID: 6705 Comm: syz.1.260 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  345.078482][ T6705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  345.078493][ T6705] Call Trace:
[  345.078501][ T6705]  <TASK>
[  345.078509][ T6705]  dump_stack_lvl+0xe8/0x150
[  345.078544][ T6705]  sysfs_create_dir_ns+0x271/0x2a0
[  345.078572][ T6705]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  345.078599][ T6705]  ? rt_spin_unlock+0x163/0x200
[  345.078625][ T6705]  kobject_add_internal+0x62c/0xce0
[  345.078654][ T6705]  kobject_init_and_add+0x12b/0x1a0
[  345.078681][ T6705]  ? __pfx_kobject_init_and_add+0x10/0x10
[  345.078704][ T6705]  ? __raw_spin_lock_init+0x45/0x100
[  345.078725][ T6705]  ? __init_swait_queue_head+0xa8/0x150
[  345.078758][ T6705]  gfs2_sys_fs_add+0x257/0x480
[  345.078783][ T6705]  ? is_dynamic_key+0x1aa/0x1c0
[  345.078806][ T6705]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  345.078838][ T6705]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  345.078881][ T6705]  gfs2_fill_super+0x1368/0x20f0
[  345.078918][ T6705]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.078937][ T6705]  ? rt_spin_unlock+0x157/0x200
[  345.078965][ T6705]  ? sb_set_blocksize+0x11b/0x210
[  345.078992][ T6705]  ? setup_bdev_super+0x586/0x680
[  345.079023][ T6705]  get_tree_bdev_flags+0x430/0x4f0
[  345.079051][ T6705]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.079071][ T6705]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  345.079111][ T6705]  ? rcu_is_watching+0x15/0xb0
[  345.079142][ T6705]  gfs2_get_tree+0x51/0x1e0
[  345.079164][ T6705]  vfs_get_tree+0x92/0x2a0
[  345.079193][ T6705]  do_new_mount+0x319/0xdc0
[  345.079216][ T6705]  ? cap_capable+0x123/0x460
[  345.079246][ T6705]  ? __pfx_do_new_mount+0x10/0x10
[  345.079271][ T6705]  ? ns_capable+0x89/0xe0
[  345.079298][ T6705]  ? path_mount+0x647/0x1050
[  345.079323][ T6705]  ? user_path_at+0xd4/0x160
[  345.079351][ T6705]  __se_sys_mount+0x31d/0x420
[  345.079380][ T6705]  ? __pfx___se_sys_mount+0x10/0x10
[  345.079409][ T6705]  ? __x64_sys_mount+0x20/0xc0
[  345.079434][ T6705]  do_syscall_64+0x17b/0x530
[  345.079463][ T6705]  ? irqentry_exit+0x10f/0x8f0
[  345.079491][ T6705]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.079512][ T6705]  ? clear_bhb_loop+0x40/0x90
[  345.079537][ T6705]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.079556][ T6705] RIP: 0033:0x7efc45b6f10a
[  345.079576][ T6705] 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
[  345.079592][ T6705] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  345.079614][ T6705] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  345.079629][ T6705] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  345.079643][ T6705] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  345.079658][ T6705] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  345.079671][ T6705] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  345.079703][ T6705]  </TASK>
[  345.081284][ T6705] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  345.081304][ T6705] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  345.222125][ T6705] Flush: task=syz.1.260[6705] dev=loop1 state=2
[  345.294801][ T6705] Teardown: task=syz.1.260[6705] dev=loop1 state=2
[  345.708823][ T6708] loop1: detected capacity change from 0 to 32768
[  345.721595][ T6708] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  345.721617][ T6708] CPU: 1 UID: 0 PID: 6708 Comm: syz.1.261 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  345.721641][ T6708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  345.721652][ T6708] Call Trace:
[  345.721659][ T6708]  <TASK>
[  345.721668][ T6708]  dump_stack_lvl+0xe8/0x150
[  345.721702][ T6708]  sysfs_create_dir_ns+0x271/0x2a0
[  345.721729][ T6708]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  345.721757][ T6708]  ? rt_spin_unlock+0x163/0x200
[  345.721783][ T6708]  kobject_add_internal+0x62c/0xce0
[  345.721812][ T6708]  kobject_init_and_add+0x12b/0x1a0
[  345.721838][ T6708]  ? __pfx_kobject_init_and_add+0x10/0x10
[  345.721862][ T6708]  ? __raw_spin_lock_init+0x45/0x100
[  345.721883][ T6708]  ? __init_swait_queue_head+0xa8/0x150
[  345.721915][ T6708]  gfs2_sys_fs_add+0x257/0x480
[  345.721939][ T6708]  ? is_dynamic_key+0x1aa/0x1c0
[  345.721962][ T6708]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  345.721996][ T6708]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  345.722039][ T6708]  gfs2_fill_super+0x1368/0x20f0
[  345.722071][ T6708]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.722088][ T6708]  ? rt_spin_unlock+0x157/0x200
[  345.722115][ T6708]  ? sb_set_blocksize+0x11b/0x210
[  345.722140][ T6708]  ? setup_bdev_super+0x586/0x680
[  345.722172][ T6708]  get_tree_bdev_flags+0x430/0x4f0
[  345.722200][ T6708]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.722219][ T6708]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  345.722249][ T6708]  ? rcu_is_watching+0x15/0xb0
[  345.722281][ T6708]  gfs2_get_tree+0x51/0x1e0
[  345.722303][ T6708]  vfs_get_tree+0x92/0x2a0
[  345.722333][ T6708]  do_new_mount+0x319/0xdc0
[  345.722356][ T6708]  ? cap_capable+0x123/0x460
[  345.722388][ T6708]  ? __pfx_do_new_mount+0x10/0x10
[  345.722414][ T6708]  ? ns_capable+0x89/0xe0
[  345.722440][ T6708]  ? path_mount+0x647/0x1050
[  345.722467][ T6708]  ? user_path_at+0xd4/0x160
[  345.722495][ T6708]  __se_sys_mount+0x31d/0x420
[  345.722524][ T6708]  ? __pfx___se_sys_mount+0x10/0x10
[  345.722552][ T6708]  ? __x64_sys_mount+0x20/0xc0
[  345.722587][ T6708]  do_syscall_64+0x17b/0x530
[  345.722618][ T6708]  ? irqentry_exit+0x10f/0x8f0
[  345.722642][ T6708]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.722661][ T6708]  ? clear_bhb_loop+0x40/0x90
[  345.722685][ T6708]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.722705][ T6708] RIP: 0033:0x7efc45b6f10a
[  345.722724][ T6708] 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
[  345.722742][ T6708] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  345.722763][ T6708] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  345.722777][ T6708] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  345.722791][ T6708] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  345.722805][ T6708] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  345.722817][ T6708] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  345.722848][ T6708]  </TASK>
[  345.787753][ T6708] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  345.787775][ T6708] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  345.887714][ T6708] Flush: task=syz.1.261[6708] dev=loop1 state=2
[  346.022741][ T6708] Teardown: task=syz.1.261[6708] dev=loop1 state=2
2026/07/20 04:59:52 executed programs: 247
[  346.397607][ T6711] loop1: detected capacity change from 0 to 32768
[  346.434403][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  346.434418][ T6711] CPU: 1 UID: 0 PID: 6711 Comm: syz.1.262 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  346.434431][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  346.434438][ T6711] Call Trace:
[  346.434442][ T6711]  <TASK>
[  346.434447][ T6711]  dump_stack_lvl+0xe8/0x150
[  346.434468][ T6711]  sysfs_create_dir_ns+0x271/0x2a0
[  346.434491][ T6711]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  346.434506][ T6711]  ? rt_spin_unlock+0x163/0x200
[  346.434521][ T6711]  kobject_add_internal+0x62c/0xce0
[  346.434536][ T6711]  kobject_init_and_add+0x12b/0x1a0
[  346.434551][ T6711]  ? __pfx_kobject_init_and_add+0x10/0x10
[  346.434563][ T6711]  ? __raw_spin_lock_init+0x45/0x100
[  346.434575][ T6711]  ? __init_swait_queue_head+0xa8/0x150
[  346.434592][ T6711]  gfs2_sys_fs_add+0x257/0x480
[  346.434605][ T6711]  ? is_dynamic_key+0x1aa/0x1c0
[  346.434618][ T6711]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  346.434635][ T6711]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  346.434659][ T6711]  gfs2_fill_super+0x1368/0x20f0
[  346.434676][ T6711]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.434685][ T6711]  ? rt_spin_unlock+0x157/0x200
[  346.434703][ T6711]  ? sb_set_blocksize+0x11b/0x210
[  346.434727][ T6711]  ? setup_bdev_super+0x586/0x680
[  346.434751][ T6711]  get_tree_bdev_flags+0x430/0x4f0
[  346.434766][ T6711]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.434776][ T6711]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  346.434793][ T6711]  ? rcu_is_watching+0x15/0xb0
[  346.434809][ T6711]  gfs2_get_tree+0x51/0x1e0
[  346.434821][ T6711]  vfs_get_tree+0x92/0x2a0
[  346.434837][ T6711]  do_new_mount+0x319/0xdc0
[  346.434849][ T6711]  ? cap_capable+0x123/0x460
[  346.434866][ T6711]  ? __pfx_do_new_mount+0x10/0x10
[  346.434879][ T6711]  ? ns_capable+0x89/0xe0
[  346.434893][ T6711]  ? path_mount+0x647/0x1050
[  346.434906][ T6711]  ? user_path_at+0xd4/0x160
[  346.434921][ T6711]  __se_sys_mount+0x31d/0x420
[  346.434937][ T6711]  ? __pfx___se_sys_mount+0x10/0x10
[  346.434951][ T6711]  ? __x64_sys_mount+0x20/0xc0
[  346.434965][ T6711]  do_syscall_64+0x17b/0x530
[  346.434980][ T6711]  ? irqentry_exit+0x10f/0x8f0
[  346.434997][ T6711]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.435007][ T6711]  ? clear_bhb_loop+0x40/0x90
[  346.435020][ T6711]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.435031][ T6711] RIP: 0033:0x7efc45b6f10a
[  346.435043][ T6711] 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
[  346.435052][ T6711] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  346.435064][ T6711] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  346.435072][ T6711] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  346.435079][ T6711] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  346.435086][ T6711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  346.435092][ T6711] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  346.435108][ T6711]  </TASK>
[  346.435123][ T6711] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  346.435131][ T6711] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  346.494925][ T5968] Flush: task=udevd[5968] dev=loop1 state=2
[  346.773674][ T5968] Teardown: task=udevd[5968] dev=loop1 state=2
[  346.986172][ T6714] loop1: detected capacity change from 0 to 32768
[  346.991872][ T6714] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  346.991895][ T6714] CPU: 0 UID: 0 PID: 6714 Comm: syz.1.263 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  346.991919][ T6714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  346.991930][ T6714] Call Trace:
[  346.991938][ T6714]  <TASK>
[  346.991947][ T6714]  dump_stack_lvl+0xe8/0x150
[  346.991982][ T6714]  sysfs_create_dir_ns+0x271/0x2a0
[  346.992011][ T6714]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  346.992049][ T6714]  ? rt_spin_unlock+0x163/0x200
[  346.992077][ T6714]  kobject_add_internal+0x62c/0xce0
[  346.992107][ T6714]  kobject_init_and_add+0x12b/0x1a0
[  346.992135][ T6714]  ? __pfx_kobject_init_and_add+0x10/0x10
[  346.992160][ T6714]  ? __raw_spin_lock_init+0x45/0x100
[  346.992201][ T6714]  ? __init_swait_queue_head+0xa8/0x150
[  346.992234][ T6714]  gfs2_sys_fs_add+0x257/0x480
[  346.992259][ T6714]  ? is_dynamic_key+0x1aa/0x1c0
[  346.992281][ T6714]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  346.992316][ T6714]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  346.992360][ T6714]  gfs2_fill_super+0x1368/0x20f0
[  346.992394][ T6714]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.992413][ T6714]  ? rt_spin_unlock+0x157/0x200
[  346.992441][ T6714]  ? sb_set_blocksize+0x11b/0x210
[  346.992467][ T6714]  ? setup_bdev_super+0x586/0x680
[  346.992500][ T6714]  get_tree_bdev_flags+0x430/0x4f0
[  346.992529][ T6714]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.992548][ T6714]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  346.992580][ T6714]  ? rcu_is_watching+0x15/0xb0
[  346.992614][ T6714]  gfs2_get_tree+0x51/0x1e0
[  346.992634][ T6714]  vfs_get_tree+0x92/0x2a0
[  346.992662][ T6714]  do_new_mount+0x319/0xdc0[  346.992662][ T6714]  do_new_mount+0x319/0xdc0
[  346.992683][ T6714]  ? cap_capable+0x123/0x460
[  346.992712][ T6714]  ? __pfx_do_new_mount+0x10/0x10
[  346.992737][ T6714]  ? ns_capable+0x89/0xe0
[  346.992764][ T6714]  ? path_mount+0x647/0x1050
[  346.992791][ T6714]  ? user_path_at+0xd4/0x160
[  346.992820][ T6714]  __se_sys_mount+0x31d/0x420
[  346.992850][ T6714]  ? __pfx___se_sys_mount+0x10/0x10
[  346.992879][ T6714]  ? __x64_sys_mount+0x20/0xc0
[  346.992905][ T6714]  do_syscall_64+0x17b/0x530
[  346.992933][ T6714]  ? irqentry_exit+0x10f/0x8f0
[  346.992961][ T6714]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.992982][ T6714]  ? clear_bhb_loop+0x40/0x90
[  346.993006][ T6714]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.993026][ T6714] RIP: 0033:0x7efc45b6f10a
[  346.993053][ T6714] 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
[  346.993071][ T6714] RSP: 002b:00007fff9b098c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  346.993092][ T6714] RAX: ffffffffffffffda RBX: 00007fff9b098c90 RCX: 00007efc45b6f10a
[  346.993109][ T6714] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff9b098c50
[  346.993124][ T6714] RBP: 000020000001f680 R08: 00007fff9b098c90 R09: 0000000000000000
[  346.993138][ T6714] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  346.993151][ T6714] R13: 00007fff9b098c50 R14: 000000000001f7dd R15: 0000200000000380
[  346.993182][ T6714]  </TASK>
[  347.017922][ T6714] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  347.018550][ T6714] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  347.144850][   T39] INFO: task kworker/1:0:32 blocked in I/O wait for more than 143 seconds.
[  347.144873][   T39]       Not tainted syzkaller #0
[  347.144884][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  347.144893][   T39] task:kworker/1:0     state:D stack:21128 pid:32    tgid:32    ppid:2      task_flags:0x4208060 flags:0x00080000
[  347.144965][   T39] Workqueue: gfs2_recovery gfs2_recover_func
[  347.144999][   T39] Call Trace:
[  347.145006][   T39]  <TASK>
[  347.145018][   T39]  __schedule+0x1709/0x5530
[  347.145073][   T39]  ? __pfx___schedule+0x10/0x10
[  347.145107][   T39]  ? schedule+0x90/0x2b0
[  347.145136][   T39]  schedule+0x164/0x2b0
[  347.145164][   T39]  io_schedule+0x7f/0xd0
[  347.145192][   T39]  folio_wait_bit_common+0x83c/0xbc0
[  347.145238][   T39]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  347.145269][   T39]  ? __pfx_wake_page_function+0x10/0x10
[  347.145316][   T39]  gfs2_jhead_process_page+0x17f/0x670
[  347.145349][   T39]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  347.145391][   T39]  gfs2_find_jhead+0xbe0/0xd20
[  347.145437][   T39]  gfs2_recover_func+0x6bd/0x1f00
[  347.145480][   T39]  ? __lock_acquire+0x6df/0x2e40
[  347.145514][   T39]  ? __pfx_gfs2_recover_func+0x10/0x10
[  347.145552][   T39]  ? __lock_acquire+0x6df/0x2e40
[  347.145574][   T39]  ? look_up_lock_class+0x57/0x110
[  347.145603][   T39]  ? register_lock_class+0x31/0x2e0
[  347.145630][   T39]  ? __lock_acquire+0x6df/0x2e40
[  347.145664][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  347.145703][   T39]  ? rcu_is_watching+0x15/0xb0
[  347.145729][   T39]  ? process_one_work+0x7fd/0x1480
[  347.145755][   T39]  process_one_work+0xaaf/0x1480
[  347.145778][   T39]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  347.145814][   T39]  ? __pfx_process_one_work+0x10/0x10
[  347.145836][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  347.145861][   T39]  ? assign_work+0x3cf/0x5d0
[  347.145889][   T39]  worker_thread+0xb05/0x10d0
[  347.145936][   T39]  kthread+0x388/0x470
[  347.145965][   T39]  ? __pfx_worker_thread+0x10/0x10
[  347.146002][   T39]  ? __pfx_kthread+0x10/0x10
[  347.146032][   T39]  ret_from_fork+0x514/0xb70
[  347.146066][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  347.146096][   T39]  ? __switch_to+0xc89/0x1420
[  347.146125][   T39]  ? __pfx_kthread+0x10/0x10
[  347.146156][   T39]  ret_from_fork_asm+0x1a/0x30
[  347.146192][   T39]  </TASK>
[  347.147885][   T39] INFO: task syz.0.18:5960 blocked for more than 143 seconds.
[  347.147904][   T39]       Not tainted syzkaller #0
[  347.147914][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  347.147924][   T39] task:syz.0.18        state:D stack:25576 pid:5960  tgid:5960  ppid:5790   task_flags:0x400140 flags:0x00080002
[  347.147985][   T39] Call Trace:
[  347.147992][   T39]  <TASK>
[  347.148005][   T39]  __schedule+0x1709/0x5530
[  347.148058][   T39]  ? __pfx___schedule+0x10/0x10
[  347.148095][   T39]  ? schedule+0x90/0x2b0
[  347.148124][   T39]  schedule+0x164/0x2b0
[  347.148153][   T39]  bit_wait+0x11/0xd0
[  347.148181][   T39]  __wait_on_bit+0xac/0x2f0
[  347.148209][   T39]  ? __pfx_bit_wait+0x10/0x10
[  347.148239][   T39]  out_of_line_wait_on_bit+0x13b/0x190
[  347.148269][   T39]  ? __pfx_bit_wait+0x10/0x10
[  347.148296][   T39]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  347.148327][   T39]  ? __pfx_wake_bit_function+0x10/0x10
[  347.148367][   T39]  gfs2_recover_journal+0xda/0x140
[  347.148399][   T39]  init_journal+0x1af4/0x2330
[  347.148430][   T39]  ? init_inodes+0xdb/0x320
[  347.148455][   T39]  ? __pfx_init_journal+0x10/0x10
[  347.148487][   T39]  ? snprintf+0xe8/0x140
[  347.148513][   T39]  ? init_inodes+0xdb/0x320
[  347.148541][   T39]  ? __pfx_snprintf+0x10/0x10
[  347.148566][   T39]  ? gfs2_glock_nq_num+0x13d/0x170
[  347.148591][   T39]  init_inodes+0xdb/0x320
[  347.148614][   T39]  gfs2_fill_super+0x1982/0x20f0
[  347.148647][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.148664][   T39]  ? rt_spin_unlock+0x157/0x200
[  347.148690][   T39]  ? init_locking+0xb8/0x210
[  347.148708][   T39]  ? sb_set_blocksize+0x11b/0x210
[  347.148734][   T39]  ? setup_bdev_super+0x586/0x680
[  347.148765][   T39]  get_tree_bdev_flags+0x430/0x4f0
[  347.148793][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.148812][   T39]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  347.148843][   T39]  ? rcu_is_watching+0x15/0xb0
[  347.148874][   T39]  gfs2_get_tree+0x51/0x1e0
[  347.148897][   T39]  vfs_get_tree+0x92/0x2a0
[  347.148927][   T39]  do_new_mount+0x319/0xdc0
[  347.148950][   T39]  ? cap_capable+0x123/0x460
[  347.148981][   T39]  ? __pfx_do_new_mount+0x10/0x10
[  347.149005][   T39]  ? ns_capable+0x89/0xe0
[  347.149031][   T39]  ? path_mount+0x647/0x1050
[  347.149057][   T39]  ? user_path_at+0xd4/0x160
[  347.149085][   T39]  __se_sys_mount+0x31d/0x420
[  347.149114][   T39]  ? __pfx___se_sys_mount+0x10/0x10
[  347.149142][   T39]  ? __x64_sys_mount+0x20/0xc0
[  347.149169][   T39]  do_syscall_64+0x17b/0x530
[  347.149196][   T39]  ? irqentry_exit+0x10f/0x8f0
[  347.149223][   T39]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.149243][   T39]  ? clear_bhb_loop+0x40/0x90
[  347.149268][   T39]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.149288][   T39] RIP: 0033:0x7f61d768f10a
[  347.149305][   T39] RSP: 002b:00007ffe53e4a818 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  347.149326][   T39] RAX: ffffffffffffffda RBX: 00007ffe53e4a8a0 RCX: 00007f61d768f10a
[  347.149341][   T39] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe53e4a860
[  347.150899][   T39] RBP: 000020000001f680 R08: 00007ffe53e4a8a0 R09: 0000000000000000
[  347.150918][   T39] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  347.150932][   T39] R13: 00007ffe53e4a860 R14: 000000000001f7dd R15: 0000200000000380
[  347.150963][   T39]  </TASK>
[  347.150995][   T39] 
[  347.150995][   T39] Showing all locks held in the system:
[  347.151009][   T39] locks held by pr/legacy/17: 4, last CPU#0:
[  347.151024][   T39]  #0: ffffffff8e1b5a40 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[  347.151076][   T39]  #1: ffffffff8e09d338 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[  347.151122][   T39]  #2: ffffffff99e2e4d8 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x17c/0x1b40
[  347.151172][   T39]  #3: ffffffff8e1c3880 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  347.151223][   T39] locks held by kworker/1:0/32: 2, on CPU#1:
[  347.151237][   T39]  #0: ffff88801f35a538 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151285][   T39]  #1: ffffc90000a6fc60 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151335][   T39] locks held by khungtaskd/39: 1, last CPU#1:
[  347.151349][   T39]  #0: ffffffff8e1c3880 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  347.151403][   T39] locks held by kworker/1:2/928: 3, last CPU#1:
[  347.151417][   T39]  #0: ffff88813fe1a538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151464][   T39]  #1: ffffc9000601fc60 ((gc_work).work){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151511][   T39]  #2: ffffffff8e1c3880 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  347.151569][   T39] locks held by kworker/u8:10/1177: 2, on CPU#1:
[  347.151583][   T39]  #0: ffff88813fe5c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151631][   T39]  #1: ffffc90006b37c60 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151698][   T39] locks held by kworker/0:3/5326: 4, last CPU#0:
[  347.151712][   T39]  #0: ffff88813fe19538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151759][   T39]  #1: ffffc900041c7c60 ((work_completion)(&sdp->work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.151806][   T39]  #2: ffffffff8e059320 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[  347.151855][   T39]  #3: ffffffff8e1c3880 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[  347.151903][   T39] locks held by getty/5351: 2, on CPU#0:
[  347.151917][   T39]  #0: ffff888035cfe0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  347.151961][   T39]  #1: ffffc900044ce2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360
[  347.152014][   T39] locks held by syz.0.18/5960: 1, on CPU#1:
[  347.152027][   T39]  #0: ffff88803d5e80e0 (&type->s_umount_key#53/1){+.+.}-{4:4}, at: sget_fc+0x97c/0x1a60
[  347.152086][   T39] locks held by udevd/5968: 3, last CPU#1:
[  347.152100][   T39]  #0: ffff8880369e6510 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
[  347.152175][   T39]  #1: ffff88803d453090 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: filename_rmdir+0x1cd/0x520
[  347.152227][   T39]  #2: ffffffff8e938678 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_path_perm+0x251/0x560
[  347.152282][   T39] locks held by syz.1.264/6717: 1, last CPU#1:
[  347.152296][   T39]  #0: ffff88802e2a4d08 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[  347.152342][   T39] 
[  347.152348][   T39] =============================================
[  347.152348][   T39] 
[  347.152368][   T39] NMI backtrace for cpu 1
[  347.152384][   T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.152406][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.152418][   T39] Call Trace:
[  347.152426][   T39]  <TASK>
[  347.152433][   T39]  dump_stack_lvl+0xe8/0x150
[  347.152463][   T39]  nmi_cpu_backtrace+0x274/0x2d0
[  347.152487][   T39]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  347.152540][   T39]  nmi_trigger_cpumask_backtrace+0x17a/0x380
[  347.152567][   T39]  sys_info+0x135/0x170
[  347.152587][   T39]  watchdog+0xfd7/0x1030
[  347.152615][   T39]  ? watchdog+0x1c7/0x1030
[  347.152640][   T39]  kthread+0x388/0x470
[  347.152668][   T39]  ? __pfx_watchdog+0x10/0x10
[  347.152687][   T39]  ? __pfx_kthread+0x10/0x10
[  347.152717][   T39]  ret_from_fork+0x514/0xb70
[  347.152750][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  347.152778][   T39]  ? __switch_to+0xc89/0x1420
[  347.152806][   T39]  ? __pfx_kthread+0x10/0x10
[  347.152836][   T39]  ret_from_fork_asm+0x1a/0x30
[  347.152869][   T39]  </TASK>
[  347.152923][   T39] Sending NMI from CPU 1 to CPUs 0:
[  347.152967][    C0] NMI backtrace for cpu 0
[  347.152986][    C0] CPU: 0 UID: 0 PID: 17 Comm: pr/legacy Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.153006][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.153016][    C0] RIP: 0010:io_serial_in+0x77/0xc0
[  347.153047][    C0] Code: e8 6e 3d 6e fc 44 89 f9 d3 e3 49 83 ee 80 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 2f 94 da fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[  347.153062][    C0] RSP: 0018:ffffc90000167a28 EFLAGS: 00000202
[  347.153077][    C0] RAX: 1ffffffff33c5c00 RBX: 00000000000003fd RCX: 0000000000000000
[  347.153090][    C0] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000000
[  347.153101][    C0] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
[  347.153113][    C0] R10: dffffc0000000000 R11: ffffffff855745f0 R12: dffffc0000000000
[  347.153126][    C0] R13: 0000000000000000 R14: ffffffff99e2e500 R15: 0000000000000000
[  347.153138][    C0] FS:  0000000000000000(0000) GS:ffff888125c3c000(0000) knlGS:0000000000000000
[  347.153153][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  347.153166][    C0] CR2: 00007efc45c1cc6b CR3: 000000000dfb0000 CR4: 00000000003526f0
[  347.153181][    C0] Call Trace:
[  347.153188][    C0]  <TASK>
[  347.153196][    C0]  wait_for_lsr+0x190/0x300
[  347.153219][    C0]  serial8250_console_write+0x113a/0x1b40
[  347.153246][    C0]  ? __pfx_serial8250_console_write+0x10/0x10
[  347.153271][    C0]  ? console_flush_one_record+0x49d/0xb90
[  347.153292][    C0]  console_flush_one_record+0x667/0xb90
[  347.153313][    C0]  ? console_flush_one_record+0xfa/0xb90
[  347.153334][    C0]  ? __pfx_console_flush_one_record+0x10/0x10
[  347.153359][    C0]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  347.153387][    C0]  legacy_kthread_func+0x1b6/0x250
[  347.153407][    C0]  ? __pfx_legacy_kthread_func+0x10/0x10
[  347.153425][    C0]  ? __pfx_autoremove_wake_function+0x10/0x10
[  347.153453][    C0]  ? __kthread_parkme+0x71/0x1f0
[  347.153477][    C0]  ? __kthread_parkme+0x196/0x1f0
[  347.153503][    C0]  kthread+0x388/0x470
[  347.153528][    C0]  ? __pfx_legacy_kthread_func+0x10/0x10
[  347.153546][    C0]  ? __pfx_kthread+0x10/0x10
[  347.153572][    C0]  ret_from_fork+0x514/0xb70
[  347.153599][    C0]  ? __pfx_ret_from_fork+0x10/0x10
[  347.153626][    C0]  ? __switch_to+0xc89/0x1420
[  347.153650][    C0]  ? __pfx_kthread+0x10/0x10
[  347.153676][    C0]  ret_from_fork_asm+0x1a/0x30
[  347.153700][    C0]  </TASK>
[  347.163435][   T39] Kernel panic - not syncing: hung_task: blocked tasks
[  347.163456][   T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.163479][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.163490][   T39] Call Trace:
[  347.163499][   T39]  <TASK>
[  347.163506][   T39]  vpanic+0x56c/0xa60
[  347.163538][   T39]  ? __pfx___schedule+0x10/0x10
[  347.163565][   T39]  ? __pfx_vpanic+0x10/0x10
[  347.163593][   T39]  panic+0xc5/0xd0
[  347.163610][   T39]  ? __pfx_panic+0x10/0x10
[  347.163627][   T39]  ? preempt_schedule_common+0x82/0xd0
[  347.163653][   T39]  ? preempt_schedule_thunk+0x16/0x40
[  347.163681][   T39]  ? nmi_trigger_cpumask_backtrace+0x314/0x380
[  347.163709][   T39]  ? nmi_trigger_cpumask_backtrace+0x319/0x380
[  347.163735][   T39]  watchdog+0x1030/0x1030
[  347.163764][   T39]  ? watchdog+0x1c7/0x1030
[  347.163791][   T39]  kthread+0x388/0x470
[  347.163820][   T39]  ? __pfx_watchdog+0x10/0x10
[  347.163838][   T39]  ? __pfx_kthread+0x10/0x10
[  347.163868][   T39]  ret_from_fork+0x514/0xb70
[  347.163901][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  347.163929][   T39]  ? __switch_to+0xc89/0x1420
[  347.163958][   T39]  ? __pfx_kthread+0x10/0x10
[  347.163987][   T39]  ret_from_fork_asm+0x1a/0x30
[  347.164019][   T39]  </TASK>
[  347.164301][   T39] Kernel Offset: disabled