91182][ T7028]  path_mount+0x5a9/0x1350
[  113.491213][ T7028]  ? putname+0x78/0xe0
[  113.491242][ T7028]  __x64_sys_mount+0x1a3/0x1e0
[  113.491273][ T7028]  do_syscall_64+0xa4/0xf80
[  113.491304][ T7028]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  113.491326][ T7028] RIP: 0033:0x7fa046f9c14a
[  113.491341][ T7028] 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
[  113.491361][ T7028] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  113.491380][ T7028] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  113.491394][ T7028] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  113.491408][ T7028] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  113.491421][ T7028] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  113.491434][ T7028] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  113.491450][ T7028]  </TASK>
[  113.491482][ T7028] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  113.496373][ T7040] CPU: 1 UID: 0 PID: 7040 Comm: syz.3.56 Not tainted syzkaller #0 PREEMPT(full) 
[  113.496400][ T7040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  113.496412][ T7040] Call Trace:
[  113.496418][ T7040]  <TASK>
[  113.496424][ T7040]  dump_stack_lvl+0x97/0xe0
[  113.496450][ T7040]  sysfs_warn_dup.cold+0x1c/0x28
[  113.496483][ T7040]  sysfs_create_dir_ns+0x129/0x140
[  113.496515][ T7040]  kobject_add_internal+0x104/0x310
[  113.496539][ T7040]  kobject_init_and_add+0xb2/0xf0
[  113.496564][ T7040]  ? alloc_workqueue_noprof+0xe0/0xb60
[  113.496593][ T7040]  gfs2_sys_fs_add+0xef/0x200
[  113.496623][ T7040]  gfs2_fill_super+0x896/0x1210
[  113.496657][ T7040]  ? sb_set_blocksize+0x8c/0x150
[  113.496681][ T7040]  ? setup_bdev_super+0x19d/0x330
[  113.496703][ T7040]  ? __pfx_gfs2_fill_super+0x10/0x10
[  113.496736][ T7040]  get_tree_bdev_flags+0x1c0/0x290
[  113.496763][ T7040]  gfs2_get_tree+0x26/0xd0
[  113.496794][ T7040]  vfs_get_tree+0x30/0x120
[  113.496814][ T7040]  path_mount+0x5a9/0x1350
[  113.496845][ T7040]  ? putname+0x78/0xe0
[  113.496875][ T7040]  __x64_sys_mount+0x1a3/0x1e0
[  113.496906][ T7040]  do_syscall_64+0xa4/0xf80
[  113.496939][ T7040]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  113.496961][ T7040] RIP: 0033:0x7f1c4f59c14a
[  113.496976][ T7040] 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
[  113.496997][ T7040] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  113.497016][ T7040] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  113.497030][ T7040] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  113.497043][ T7040] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  113.497057][ T7040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  113.497070][ T7040] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  113.497087][ T7040]  </TASK>
[  113.497096][ T7040] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  113.509253][ T7032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  113.528739][ T7028] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  113.541354][ T7040] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  113.551925][ T7032] CPU: 1 UID: 0 PID: 7032 Comm: syz.5.52 Not tainted syzkaller #0 PREEMPT(full) 
[  113.551951][ T7032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  113.551964][ T7032] Call Trace:
[  113.551969][ T7032]  <TASK>
[  113.551975][ T7032]  dump_stack_lvl+0x97/0xe0
[  113.552003][ T7032]  sysfs_warn_dup.cold+0x1c/0x28
[  113.552036][ T7032]  sysfs_create_dir_ns+0x129/0x140
[  113.552063][ T7032]  kobject_add_internal+0x104/0x310
[  113.552087][ T7032]  kobject_init_and_add+0xb2/0xf0
[  113.552113][ T7032]  ? alloc_workqueue_noprof+0xe0/0xb60
[  113.552148][ T7032]  gfs2_sys_fs_add+0xef/0x200
[  113.552178][ T7032]  gfs2_fill_super+0x896/0x1210
[  113.552213][ T7032]  ? sb_set_blocksize+0x8c/0x150
[  113.552236][ T7032]  ? setup_bdev_super+0x19d/0x330
[  113.552258][ T7032]  ? __pfx_gfs2_fill_super+0x10/0x10
[  113.552293][ T7032]  get_tree_bdev_flags+0x1c0/0x290
[  113.552319][ T7032]  gfs2_get_tree+0x26/0xd0
[  113.552350][ T7032]  vfs_get_tree+0x30/0x120
[  113.552369][ T7032]  path_mount+0x5a9/0x1350
[  113.552400][ T7032]  ? putname+0x78/0xe0
[  113.552430][ T7032]  __x64_sys_mount+0x1a3/0x1e0
[  113.552462][ T7032]  do_syscall_64+0xa4/0xf80
[  113.552494][ T7032]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  113.552515][ T7032] RIP: 0033:0x7f6d7c39c14a
[  113.552531][ T7032] 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
[  113.552552][ T7032] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  113.552571][ T7032] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  113.552585][ T7032] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  113.552599][ T7032] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  113.552612][ T7032] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  113.552625][ T7032] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  113.552642][ T7032]  </TASK>
[  113.552653][ T7032] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  113.571910][ T7030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  113.573328][ T7032] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  113.576907][ T7030] CPU: 0 UID: 0 PID: 7030 Comm: syz.4.51 Not tainted syzkaller #0 PREEMPT(full) 
[  113.576934][ T7030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  113.576946][ T7030] Call Trace:
[  113.576951][ T7030]  <TASK>
[  113.576958][ T7030]  dump_stack_lvl+0x97/0xe0
[  113.576986][ T7030]  sysfs_warn_dup.cold+0x1c/0x28
[  113.577018][ T7030]  sysfs_create_dir_ns+0x129/0x140
[  113.577045][ T7030]  kobject_add_internal+0x104/0x310
[  113.577068][ T7030]  kobject_init_and_add+0xb2/0xf0
[  113.577093][ T7030]  ? alloc_workqueue_noprof+0xe0/0xb60
[  113.577120][ T7030]  gfs2_sys_fs_add+0xef/0x200
[  113.577148][ T7030]  gfs2_fill_super+0x896/0x1210
[  113.577182][ T7030]  ? sb_set_blocksize+0x8c/0x150
[  113.577206][ T7030]  ? setup_bdev_super+0x19d/0x330
[  113.577228][ T7030]  ? __pfx_gfs2_fill_super+0x10/0x10
[  113.577261][ T7030]  get_tree_bdev_flags+0x1c0/0x290
[  113.577286][ T7030]  gfs2_get_tree+0x26/0xd0
[  113.577317][ T7030]  vfs_get_tree+0x30/0x120
[  113.577336][ T7030]  path_mount+0x5a9/0x1350
[  113.577368][ T7030]  ? putname+0x78/0xe0
[  113.577396][ T7030]  __x64_sys_mount+0x1a3/0x1e0
[  113.577428][ T7030]  do_syscall_64+0xa4/0xf80
[  113.577459][ T7030]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  113.577481][ T7030] RIP: 0033:0x7f9543b9c14a
[  113.577496][ T7030] 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
[  113.577516][ T7030] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  113.577535][ T7030] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  113.577549][ T7030] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  113.577562][ T7030] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  113.577575][ T7030] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  113.577593][ T7030] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  113.577609][ T7030]  </TASK>
[  113.577651][ T7030] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  113.592119][ T7036] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  113.597022][ T7030] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  113.649616][ T7036] CPU: 1 UID: 0 PID: 7036 Comm: syz.0.54 Not tainted syzkaller #0 PREEMPT(full) 
[  113.649643][ T7036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  113.649656][ T7036] Call Trace:
[  113.649661][ T7036]  <TASK>
[  113.649667][ T7036]  dump_stack_lvl+0x97/0xe0
[  113.649696][ T7036]  sysfs_warn_dup.cold+0x1c/0x28
[  113.649728][ T7036]  sysfs_create_dir_ns+0x129/0x140
[  113.649755][ T7036]  kobject_add_internal+0x104/0x310
[  113.649780][ T7036]  kobject_init_and_add+0xb2/0xf0
[  113.649805][ T7036]  ? alloc_workqueue_noprof+0xe0/0xb60
[  113.649833][ T7036]  gfs2_sys_fs_add+0xef/0x200
[  113.649862][ T7036]  gfs2_fill_super+0x896/0x1210
[  113.649896][ T7036]  ? sb_set_blocksize+0x8c/0x150
[  113.649920][ T7036]  ? setup_bdev_super+0x19d/0x330
[  113.649942][ T7036]  ? __pfx_gfs2_fill_super+0x10/0x10
[  113.649976][ T7036]  get_tree_bdev_flags+0x1c0/0x290
[  113.650002][ T7036]  gfs2_get_tree+0x26/0xd0
[  113.650033][ T7036]  vfs_get_tree+0x30/0x120
[  113.650052][ T7036]  path_mount+0x5a9/0x1350
[  113.650084][ T7036]  ? putname+0x78/0xe0
[  113.650114][ T7036]  __x64_sys_mount+0x1a3/0x1e0
[  113.650151][ T7036]  do_syscall_64+0xa4/0xf80
[  113.650183][ T7036]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  113.650205][ T7036] RIP: 0033:0x7f41b599c14a
[  113.650220][ T7036] 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
[  113.650241][ T7036] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  113.650260][ T7036] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  113.650274][ T7036] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  113.650288][ T7036] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  113.650301][ T7036] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  113.650315][ T7036] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  113.650331][ T7036]  </TASK>
[  113.650340][ T7036] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  114.828802][ T7036] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  118.432809][ T6788] gfs2: fsid=syz:syz.0: file system withdrawn
[  118.516577][ T7055] set_capacity_and_notify: 3 callbacks suppressed
[  118.516586][ T7055] loop2: detected capacity change from 0 to 32768
[  118.532565][ T7055] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  118.540741][ T7055] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  118.551134][ T7055] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  118.559260][ T5931] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  118.566356][ T5931] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  118.576725][ T5931] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  118.584202][ T5931] gfs2: fsid=syz:syz.0: jid=0: Done
[  118.589412][ T7055] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  118.616983][ T7055] gfs2: fsid=syz:syz.0: found 1 quota changes
[  118.625303][ T6341] syz-executor: attempt to access beyond end of device
[  118.625303][ T6341] loop2: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  118.640029][ T6341] Buffer I/O error on dev loop2, logical block 8589934885, lost async page write
[  118.649292][ T6341] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  118.662599][ T6341] CPU: 0 UID: 0 PID: 6341 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  118.662627][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  118.662640][ T6341] Call Trace:
[  118.662645][ T6341]  <TASK>
[  118.662652][ T6341]  dump_stack_lvl+0x97/0xe0
[  118.662687][ T6341]  gfs2_withdraw.cold+0xa/0x77
[  118.662708][ T6341]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  118.662731][ T6341]  gfs2_ail1_flush+0x497/0x7e0
[  118.662769][ T6341]  gfs2_ail1_start+0x4f/0x80
[  118.662804][ T6341]  gfs2_log_flush+0xf95/0x1170
[  118.662816][ T6341]  gfs2_kill_sb+0x3e/0x1e0
[  118.662834][ T6341]  deactivate_locked_super+0x4f/0x120
[  118.662849][ T6341]  deactivate_super+0xa4/0xc0
[  118.662862][ T6341]  cleanup_mnt+0x145/0x1f0
[  118.662876][ T6341]  task_work_run+0x95/0xf0
[  118.662894][ T6341]  exit_to_user_mode_loop+0xcf/0x440
[  118.662910][ T6341]  do_syscall_64+0x2b8/0xf80
[  118.662942][ T6341]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  118.662956][ T6341] RIP: 0033:0x7f808a39c117
[  118.662966][ T6341] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  118.662979][ T6341] RSP: 002b:00007ffd9df08a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  118.662990][ T6341] RAX: 0000000000000000 RBX: 00007f808a40471f RCX: 00007f808a39c117
[  118.662997][ T6341] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9df08ad0
[  118.663005][ T6341] RBP: 00007ffd9df08ad0 R08: 00007ffd9df09ad0 R09: 00000000ffffffff
[  118.663012][ T6341] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd9df09b60
[  118.663019][ T6341] R13: 00007f808a40471f R14: 000000000001cea4 R15: 00007ffd9df09ba0
[  118.663028][ T6341]  </TASK>
[  118.663032][ T6341] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  123.872936][   T10] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:07:14 executed programs: 54
[  126.239435][ T7064] loop0: detected capacity change from 0 to 32768
[  126.288573][ T7064] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  126.317608][ T7074] loop5: detected capacity change from 0 to 32768
[  126.361896][ T7064] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  126.370701][ T7073] loop4: detected capacity change from 0 to 32768
[  126.378397][ T7073] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  126.386094][ T7074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  126.393929][ T7074] CPU: 1 UID: 0 PID: 7074 Comm: syz.5.62 Not tainted syzkaller #0 PREEMPT(full) 
[  126.393956][ T7074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  126.393968][ T7074] Call Trace:
[  126.393974][ T7074]  <TASK>
[  126.393981][ T7074]  dump_stack_lvl+0x97/0xe0
[  126.394017][ T7074]  sysfs_warn_dup.cold+0x1c/0x28
[  126.394047][ T7074]  sysfs_create_dir_ns+0x129/0x140
[  126.394084][ T7074]  kobject_add_internal+0x104/0x310
[  126.394110][ T7074]  kobject_init_and_add+0xb2/0xf0
[  126.394136][ T7074]  ? alloc_workqueue_noprof+0xe0/0xb60
[  126.394165][ T7074]  gfs2_sys_fs_add+0xef/0x200
[  126.394194][ T7074]  gfs2_fill_super+0x896/0x1210
[  126.394230][ T7074]  ? sb_set_blocksize+0x8c/0x150
[  126.394255][ T7074]  ? setup_bdev_super+0x19d/0x330
[  126.394278][ T7074]  ? __pfx_gfs2_fill_super+0x10/0x10
[  126.394313][ T7074]  get_tree_bdev_flags+0x1c0/0x290
[  126.394339][ T7074]  gfs2_get_tree+0x26/0xd0
[  126.394369][ T7074]  vfs_get_tree+0x30/0x120
[  126.394389][ T7074]  path_mount+0x5a9/0x1350
[  126.394421][ T7074]  ? putname+0x78/0xe0
[  126.394454][ T7074]  __x64_sys_mount+0x1a3/0x1e0
[  126.394488][ T7074]  do_syscall_64+0xa4/0xf80
[  126.394521][ T7074]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  126.394544][ T7074] RIP: 0033:0x7f6d7c39c14a
[  126.394564][ T7074] 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
[  126.394586][ T7074] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  126.394605][ T7074] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  126.394620][ T7074] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  126.394634][ T7074] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  126.394648][ T7074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  126.394662][ T7074] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  126.394679][ T7074]  </TASK>
[  126.394689][ T7074] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  126.421736][ T7073] CPU: 0 UID: 0 PID: 7073 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full) 
[  126.421763][ T7073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  126.421776][ T7073] Call Trace:
[  126.421782][ T7073]  <TASK>
[  126.421788][ T7073]  dump_stack_lvl+0x97/0xe0
[  126.421823][ T7073]  sysfs_warn_dup.cold+0x1c/0x28
[  126.421854][ T7073]  sysfs_create_dir_ns+0x129/0x140
[  126.421881][ T7073]  kobject_add_internal+0x104/0x310
[  126.421906][ T7073]  kobject_init_and_add+0xb2/0xf0
[  126.421930][ T7073]  ? alloc_workqueue_noprof+0xe0/0xb60
[  126.421957][ T7073]  gfs2_sys_fs_add+0xef/0x200
[  126.421986][ T7073]  gfs2_fill_super+0x896/0x1210
[  126.422020][ T7073]  ? sb_set_blocksize+0x8c/0x150
[  126.422044][ T7073]  ? setup_bdev_super+0x19d/0x330
[  126.422065][ T7073]  ? __pfx_gfs2_fill_super+0x10/0x10
[  126.422098][ T7073]  get_tree_bdev_flags+0x1c0/0x290
[  126.422124][ T7073]  gfs2_get_tree+0x26/0xd0
[  126.422154][ T7073]  vfs_get_tree+0x30/0x120
[  126.422173][ T7073]  path_mount+0x5a9/0x1350
[  126.422205][ T7073]  ? putname+0x78/0xe0
[  126.422234][ T7073]  __x64_sys_mount+0x1a3/0x1e0
[  126.422265][ T7073]  do_syscall_64+0xa4/0xf80
[  126.422297][ T7073]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  126.422319][ T7073] RIP: 0033:0x7f9543b9c14a
[  126.422334][ T7073] 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
[  126.422355][ T7073] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  126.422374][ T7073] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  126.422388][ T7073] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  126.422402][ T7073] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  126.422415][ T7073] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  126.422428][ T7073] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  126.422445][ T7073]  </TASK>
[  126.422456][ T7073] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  126.499620][ T7067] loop3: detected capacity change from 0 to 32768
[  126.502808][ T7066] loop1: detected capacity change from 0 to 32768
[  126.533969][ T7064] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  126.537351][ T7074] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  126.557465][ T7073] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  126.563623][ T7069] loop2: detected capacity change from 0 to 32768
[  126.587280][ T7075] loop6: detected capacity change from 0 to 32768
[  126.662030][ T7067] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  126.663221][ T7066] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  126.678393][ T7069] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  126.684289][ T7066] CPU: 1 UID: 0 PID: 7066 Comm: syz.1.58 Not tainted syzkaller #0 PREEMPT(full) 
[  126.684316][ T7066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  126.684328][ T7066] Call Trace:
[  126.684334][ T7066]  <TASK>
[  126.684340][ T7066]  dump_stack_lvl+0x97/0xe0
[  126.684366][ T7066]  sysfs_warn_dup.cold+0x1c/0x28
[  126.684399][ T7066]  sysfs_create_dir_ns+0x129/0x140
[  126.684426][ T7066]  kobject_add_internal+0x104/0x310
[  126.684451][ T7066]  kobject_init_and_add+0xb2/0xf0
[  126.684476][ T7066]  ? alloc_workqueue_noprof+0xe0/0xb60
[  126.684504][ T7066]  gfs2_sys_fs_add+0xef/0x200
[  126.684533][ T7066]  gfs2_fill_super+0x896/0x1210
[  126.684568][ T7066]  ? sb_set_blocksize+0x8c/0x150
[  126.684592][ T7066]  ? setup_bdev_super+0x19d/0x330
[  126.684614][ T7066]  ? __pfx_gfs2_fill_super+0x10/0x10
[  126.684648][ T7066]  get_tree_bdev_flags+0x1c0/0x290
[  126.684674][ T7066]  gfs2_get_tree+0x26/0xd0
[  126.684704][ T7066]  vfs_get_tree+0x30/0x120
[  126.684723][ T7066]  path_mount+0x5a9/0x1350
[  126.684753][ T7066]  ? putname+0x78/0xe0
[  126.684791][ T7066]  __x64_sys_mount+0x1a3/0x1e0
[  126.684822][ T7066]  do_syscall_64+0xa4/0xf80
[  126.684853][ T7066]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  126.684875][ T7066] RIP: 0033:0x7fa046f9c14a
[  126.684891][ T7066] 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
[  126.684911][ T7066] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  126.684930][ T7066] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  126.684944][ T7066] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  126.684957][ T7066] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  126.684971][ T7066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  126.684984][ T7066] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  126.685000][ T7066]  </TASK>
[  126.685008][ T7066] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  126.721788][ T6983] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  126.729009][ T7067] CPU: 1 UID: 0 PID: 7067 Comm: syz.3.60 Not tainted syzkaller #0 PREEMPT(full) 
[  126.729036][ T7067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  126.729048][ T7067] Call Trace:
[  126.729054][ T7067]  <TASK>
[  126.729061][ T7067]  dump_stack_lvl+0x97/0xe0
[  126.729088][ T7067]  sysfs_warn_dup.cold+0x1c/0x28
[  126.729121][ T7067]  sysfs_create_dir_ns+0x129/0x140
[  126.729148][ T7067]  kobject_add_internal+0x104/0x310
[  126.729173][ T7067]  kobject_init_and_add+0xb2/0xf0
[  126.729197][ T7067]  ? alloc_workqueue_noprof+0xe0/0xb60
[  126.729225][ T7067]  gfs2_sys_fs_add+0xef/0x200
[  126.729254][ T7067]  gfs2_fill_super+0x896/0x1210
[  126.729287][ T7067]  ? sb_set_blocksize+0x8c/0x150
[  126.729311][ T7067]  ? setup_bdev_super+0x19d/0x330
[  126.729333][ T7067]  ? __pfx_gfs2_fill_super+0x10/0x10
[  126.729366][ T7067]  get_tree_bdev_flags+0x1c0/0x290
[  126.729392][ T7067]  gfs2_get_tree+0x26/0xd0
[  126.729422][ T7067]  vfs_get_tree+0x30/0x120
[  126.729441][ T7067]  path_mount+0x5a9/0x1350
[  126.729472][ T7067]  ? putname+0x78/0xe0
[  126.729501][ T7067]  __x64_sys_mount+0x1a3/0x1e0
[  126.729533][ T7067]  do_syscall_64+0xa4/0xf80
[  126.729565][ T7067]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  126.729587][ T7067] RIP: 0033:0x7f1c4f59c14a
[  126.729602][ T7067] 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
[  126.729623][ T7067] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  126.729643][ T7067] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  126.729657][ T7067] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  126.729671][ T7067] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  126.729685][ T7067] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  126.729697][ T7067] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  126.729714][ T7067]  </TASK>
[  126.729724][ T7067] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  126.774108][ T6983] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  126.777851][ T7069] CPU: 1 UID: 0 PID: 7069 Comm: syz.2.59 Not tainted syzkaller #0 PREEMPT(full) 
[  126.777878][ T7069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  126.777890][ T7069] Call Trace:
[  126.777896][ T7069]  <TASK>
[  126.777902][ T7069]  dump_stack_lvl+0x97/0xe0
[  126.777929][ T7069]  sysfs_warn_dup.cold+0x1c/0x28
[  126.777961][ T7069]  sysfs_create_dir_ns+0x129/0x140
[  126.777987][ T7069]  kobject_add_internal+0x104/0x310
[  126.778011][ T7069]  kobject_init_and_add+0xb2/0xf0
[  126.778036][ T7069]  ? alloc_workqueue_noprof+0xe0/0xb60
[  126.778064][ T7069]  gfs2_sys_fs_add+0xef/0x200
[  126.778093][ T7069]  gfs2_fill_super+0x896/0x1210
[  126.778127][ T7069]  ? sb_set_blocksize+0x8c/0x150
[  126.778151][ T7069]  ? setup_bdev_super+0x19d/0x330
[  126.778172][ T7069]  ? __pfx_gfs2_fill_super+0x10/0x10
[  126.778205][ T7069]  get_tree_bdev_flags+0x1c0/0x290
[  126.778231][ T7069]  gfs2_get_tree+0x26/0xd0
[  126.778261][ T7069]  vfs_get_tree+0x30/0x120
[  126.778280][ T7069]  path_mount+0x5a9/0x1350
[  126.778312][ T7069]  ? putname+0x78/0xe0
[  126.778342][ T7069]  __x64_sys_mount+0x1a3/0x1e0
[  126.778373][ T7069]  do_syscall_64+0xa4/0xf80
[  126.778404][ T7069]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  126.778426][ T7069] RIP: 0033:0x7f808a39c14a
[  126.778441][ T7069] 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
[  126.778461][ T7069] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  126.778480][ T7069] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  126.778494][ T7069] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  126.778508][ T7069] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  126.778520][ T7069] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  126.778534][ T7069] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  126.778550][ T7069]  </TASK>
[  126.778559][ T7069] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  126.811752][ T7066] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  126.838838][ T7069] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  126.857357][ T6983] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 83ms
[  126.875387][ T7067] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  126.879102][ T7075] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  127.401008][ T7095] loop5: detected capacity change from 0 to 32768
[  127.403419][ T6983] gfs2: fsid=syz:syz.0: jid=0: Done
[  127.418113][ T7096] loop4: detected capacity change from 0 to 32768
[  127.431733][ T7075] CPU: 0 UID: 0 PID: 7075 Comm: syz.6.63 Not tainted syzkaller #0 PREEMPT(full) 
[  127.431761][ T7075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  127.431773][ T7075] Call Trace:
[  127.431779][ T7075]  <TASK>
[  127.431785][ T7075]  dump_stack_lvl+0x97/0xe0
[  127.431812][ T7075]  sysfs_warn_dup.cold+0x1c/0x28
[  127.431844][ T7075]  sysfs_create_dir_ns+0x129/0x140
[  127.431872][ T7075]  kobject_add_internal+0x104/0x310
[  127.431897][ T7075]  kobject_init_and_add+0xb2/0xf0
[  127.431928][ T7075]  ? alloc_workqueue_noprof+0xe0/0xb60
[  127.431956][ T7075]  gfs2_sys_fs_add+0xef/0x200
[  127.431986][ T7075]  gfs2_fill_super+0x896/0x1210
[  127.432021][ T7075]  ? sb_set_blocksize+0x8c/0x150
[  127.432045][ T7075]  ? setup_bdev_super+0x19d/0x330
[  127.432067][ T7075]  ? __pfx_gfs2_fill_super+0x10/0x10
[  127.432100][ T7075]  get_tree_bdev_flags+0x1c0/0x290
[  127.432127][ T7075]  gfs2_get_tree+0x26/0xd0
[  127.432157][ T7075]  vfs_get_tree+0x30/0x120
[  127.432176][ T7075]  path_mount+0x5a9/0x1350
[  127.432208][ T7075]  ? putname+0x78/0xe0
[  127.432238][ T7075]  __x64_sys_mount+0x1a3/0x1e0
[  127.432271][ T7075]  do_syscall_64+0xa4/0xf80
[  127.432303][ T7075]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  127.432325][ T7075] RIP: 0033:0x7fc30eb9c14a
[  127.432341][ T7075] 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
[  127.432362][ T7075] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  127.432381][ T7075] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  127.432395][ T7075] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  127.432409][ T7075] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  127.432422][ T7075] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  127.432436][ T7075] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  127.432453][ T7075]  </TASK>
[  127.432464][ T7075] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  127.435107][ T7064] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  127.481747][ T7075] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  127.608735][ T7102] loop2: detected capacity change from 0 to 32768
[  127.682699][ T7096] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  127.765212][ T7095] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  127.782759][ T7096] CPU: 1 UID: 0 PID: 7096 Comm: syz.4.64 Not tainted syzkaller #0 PREEMPT(full) 
[  127.782786][ T7096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  127.782798][ T7096] Call Trace:
[  127.782804][ T7096]  <TASK>
[  127.782810][ T7096]  dump_stack_lvl+0x97/0xe0
[  127.782836][ T7096]  sysfs_warn_dup.cold+0x1c/0x28
[  127.782869][ T7096]  sysfs_create_dir_ns+0x129/0x140
[  127.782897][ T7096]  kobject_add_internal+0x104/0x310
[  127.782921][ T7096]  kobject_init_and_add+0xb2/0xf0
[  127.782945][ T7096]  ? alloc_workqueue_noprof+0xe0/0xb60
[  127.782973][ T7096]  gfs2_sys_fs_add+0xef/0x200
[  127.783002][ T7096]  gfs2_fill_super+0x896/0x1210
[  127.783035][ T7096]  ? sb_set_blocksize+0x8c/0x150
[  127.783059][ T7096]  ? setup_bdev_super+0x19d/0x330
[  127.783080][ T7096]  ? __pfx_gfs2_fill_super+0x10/0x10
[  127.783113][ T7096]  get_tree_bdev_flags+0x1c0/0x290
[  127.783139][ T7096]  gfs2_get_tree+0x26/0xd0
[  127.783169][ T7096]  vfs_get_tree+0x30/0x120
[  127.783188][ T7096]  path_mount+0x5a9/0x1350
[  127.783219][ T7096]  ? putname+0x78/0xe0
[  127.783249][ T7096]  __x64_sys_mount+0x1a3/0x1e0
[  127.783280][ T7096]  do_syscall_64+0xa4/0xf80
[  127.783311][ T7096]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  127.783332][ T7096] RIP: 0033:0x7f9543b9c14a
[  127.783348][ T7096] 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
[  127.783368][ T7096] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  127.783388][ T7096] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  127.783402][ T7096] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  127.783415][ T7096] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  127.783428][ T7096] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  127.783441][ T7096] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  127.783457][ T7096]  </TASK>
[  127.783466][ T7096] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  127.811853][ T7101] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  127.814859][ T7095] CPU: 1 UID: 0 PID: 7095 Comm: syz.5.65 Not tainted syzkaller #0 PREEMPT(full) 
[  127.814885][ T7095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  127.814898][ T7095] Call Trace:
[  127.814904][ T7095]  <TASK>
[  127.814910][ T7095]  dump_stack_lvl+0x97/0xe0
[  127.814936][ T7095]  sysfs_warn_dup.cold+0x1c/0x28
[  127.814968][ T7095]  sysfs_create_dir_ns+0x129/0x140
[  127.814994][ T7095]  kobject_add_internal+0x104/0x310
[  127.815019][ T7095]  kobject_init_and_add+0xb2/0xf0
[  127.815043][ T7095]  ? alloc_workqueue_noprof+0xe0/0xb60
[  127.815071][ T7095]  gfs2_sys_fs_add+0xef/0x200
[  127.815100][ T7095]  gfs2_fill_super+0x896/0x1210
[  127.815134][ T7095]  ? sb_set_blocksize+0x8c/0x150
[  127.815158][ T7095]  ? setup_bdev_super+0x19d/0x330
[  127.815180][ T7095]  ? __pfx_gfs2_fill_super+0x10/0x10
[  127.815212][ T7095]  get_tree_bdev_flags+0x1c0/0x290
[  127.815238][ T7095]  gfs2_get_tree+0x26/0xd0
[  127.815269][ T7095]  vfs_get_tree+0x30/0x120
[  127.815288][ T7095]  path_mount+0x5a9/0x1350
[  127.815319][ T7095]  ? putname+0x78/0xe0
[  127.815348][ T7095]  __x64_sys_mount+0x1a3/0x1e0
[  127.815379][ T7095]  do_syscall_64+0xa4/0xf80
[  127.815411][ T7095]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  127.815432][ T7095] RIP: 0033:0x7f6d7c39c14a
[  127.815447][ T7095] 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
[  127.815468][ T7095] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  127.815487][ T7095] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  127.815501][ T7095] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  127.815514][ T7095] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  127.815527][ T7095] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  127.815540][ T7095] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  127.815556][ T7095]  </TASK>
[  127.815565][ T7095] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  127.825011][ T7101] CPU: 0 UID: 0 PID: 7101 Comm: syz.1.68 Not tainted syzkaller #0 PREEMPT(full) 
[  127.825037][ T7101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  127.825049][ T7101] Call Trace:
[  127.825054][ T7101]  <TASK>
[  127.825060][ T7101]  dump_stack_lvl+0x97/0xe0
[  127.825085][ T7101]  sysfs_warn_dup.cold+0x1c/0x28
[  127.825117][ T7101]  sysfs_create_dir_ns+0x129/0x140
[  127.825143][ T7101]  kobject_add_internal+0x104/0x310
[  127.825167][ T7101]  kobject_init_and_add+0xb2/0xf0
[  127.825192][ T7101]  ? alloc_workqueue_noprof+0xe0/0xb60
[  127.825219][ T7101]  gfs2_sys_fs_add+0xef/0x200
[  127.825248][ T7101]  gfs2_fill_super+0x896/0x1210
[  127.825283][ T7101]  ? sb_set_blocksize+0x8c/0x150
[  127.825308][ T7101]  ? setup_bdev_super+0x19d/0x330
[  127.825329][ T7101]  ? __pfx_gfs2_fill_super+0x10/0x10
[  127.825363][ T7101]  get_tree_bdev_flags+0x1c0/0x290
[  127.825391][ T7101]  gfs2_get_tree+0x26/0xd0
[  127.825422][ T7101]  vfs_get_tree+0x30/0x120
[  127.825441][ T7101]  path_mount+0x5a9/0x1350
[  127.825472][ T7101]  ? putname+0x78/0xe0
[  127.825503][ T7101]  __x64_sys_mount+0x1a3/0x1e0
[  127.825534][ T7101]  do_syscall_64+0xa4/0xf80
[  127.825566][ T7101]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  127.825588][ T7101] RIP: 0033:0x7fa046f9c14a
[  127.825603][ T7101] 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
[  127.825623][ T7101] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  127.825642][ T7101] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  127.825656][ T7101] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  127.825670][ T7101] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  127.825683][ T7101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  127.825696][ T7101] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  127.825710][ T7101]  </TASK>
[  127.825717][ T7101] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  127.846587][ T7095] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  127.852268][ T7101] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  127.881907][ T7064] gfs2: fsid=syz:syz.0: found 1 quota changes
[  127.885401][ T7102] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  127.890528][ T7096] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  127.909187][ T7102] CPU: 0 UID: 0 PID: 7102 Comm: syz.2.67 Not tainted syzkaller #0 PREEMPT(full) 
[  127.909214][ T7102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  127.909227][ T7102] Call Trace:
[  127.909232][ T7102]  <TASK>
[  127.909239][ T7102]  dump_stack_lvl+0x97/0xe0
[  127.909265][ T7102]  sysfs_warn_dup.cold+0x1c/0x28
[  127.909297][ T7102]  sysfs_create_dir_ns+0x129/0x140
[  127.909325][ T7102]  kobject_add_internal+0x104/0x310
[  127.909349][ T7102]  kobject_init_and_add+0xb2/0xf0
[  127.909374][ T7102]  ? alloc_workqueue_noprof+0xe0/0xb60
[  127.909402][ T7102]  gfs2_sys_fs_add+0xef/0x200
[  127.909432][ T7102]  gfs2_fill_super+0x896/0x1210
[  127.909467][ T7102]  ? sb_set_blocksize+0x8c/0x150
[  127.909491][ T7102]  ? setup_bdev_super+0x19d/0x330
[  127.909514][ T7102]  ? __pfx_gfs2_fill_super+0x10/0x10
[  127.909548][ T7102]  get_tree_bdev_flags+0x1c0/0x290
[  127.909574][ T7102]  gfs2_get_tree+0x26/0xd0
[  127.909605][ T7102]  vfs_get_tree+0x30/0x120
[  127.909624][ T7102]  path_mount+0x5a9/0x1350
[  127.909655][ T7102]  ? putname+0x78/0xe0
[  127.909685][ T7102]  __x64_sys_mount+0x1a3/0x1e0
[  127.909717][ T7102]  do_syscall_64+0xa4/0xf80
[  127.909748][ T7102]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  127.909770][ T7102] RIP: 0033:0x7f808a39c14a
[  127.909786][ T7102] 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
[  127.909806][ T7102] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  127.909825][ T7102] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  127.909839][ T7102] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  127.909853][ T7102] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  127.909866][ T7102] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  127.909880][ T7102] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  127.909896][ T7102]  </TASK>
[  127.909907][ T7102] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  128.109170][ T7098] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  128.111421][ T7102] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  128.133023][ T6336] syz-executor: attempt to access beyond end of device
[  128.133023][ T6336] loop0: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  128.179178][ T7098] CPU: 0 UID: 0 PID: 7098 Comm: syz.3.66 Not tainted syzkaller #0 PREEMPT(full) 
[  128.179205][ T7098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  128.179218][ T7098] Call Trace:
[  128.179223][ T7098]  <TASK>
[  128.179229][ T7098]  dump_stack_lvl+0x97/0xe0
[  128.179256][ T7098]  sysfs_warn_dup.cold+0x1c/0x28
[  128.179290][ T7098]  sysfs_create_dir_ns+0x129/0x140
[  128.179317][ T7098]  kobject_add_internal+0x104/0x310
[  128.179341][ T7098]  kobject_init_and_add+0xb2/0xf0
[  128.179367][ T7098]  ? alloc_workqueue_noprof+0xe0/0xb60
[  128.179394][ T7098]  gfs2_sys_fs_add+0xef/0x200
[  128.179424][ T7098]  gfs2_fill_super+0x896/0x1210
[  128.179459][ T7098]  ? sb_set_blocksize+0x8c/0x150
[  128.179482][ T7098]  ? setup_bdev_super+0x19d/0x330
[  128.179504][ T7098]  ? __pfx_gfs2_fill_super+0x10/0x10
[  128.179538][ T7098]  get_tree_bdev_flags+0x1c0/0x290
[  128.179565][ T7098]  gfs2_get_tree+0x26/0xd0
[  128.179595][ T7098]  vfs_get_tree+0x30/0x120
[  128.179614][ T7098]  path_mount+0x5a9/0x1350
[  128.179645][ T7098]  ? putname+0x78/0xe0
[  128.179675][ T7098]  __x64_sys_mount+0x1a3/0x1e0
[  128.179707][ T7098]  do_syscall_64+0xa4/0xf80
[  128.179739][ T7098]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  128.179761][ T7098] RIP: 0033:0x7f1c4f59c14a
[  128.179776][ T7098] 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
[  128.179797][ T7098] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  128.179816][ T7098] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  128.179831][ T7098] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  128.179844][ T7098] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  128.179858][ T7098] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  128.179871][ T7098] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  128.179887][ T7098]  </TASK>
[  128.179898][ T7098] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  128.181749][ T7117] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  128.201935][ T6336] Buffer I/O error on dev loop0, logical block 8589934885, lost async page write
[  128.205856][ T7117] CPU: 1 UID: 0 PID: 7117 Comm: syz.6.69 Not tainted syzkaller #0 PREEMPT(full) 
[  128.205883][ T7117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  128.205895][ T7117] Call Trace:
[  128.205901][ T7117]  <TASK>
[  128.205908][ T7117]  dump_stack_lvl+0x97/0xe0
[  128.205934][ T7117]  sysfs_warn_dup.cold+0x1c/0x28
[  128.205966][ T7117]  sysfs_create_dir_ns+0x129/0x140
[  128.205992][ T7117]  kobject_add_internal+0x104/0x310
[  128.206017][ T7117]  kobject_init_and_add+0xb2/0xf0
[  128.206043][ T7117]  ? alloc_workqueue_noprof+0xe0/0xb60
[  128.206070][ T7117]  gfs2_sys_fs_add+0xef/0x200
[  128.206099][ T7117]  gfs2_fill_super+0x896/0x1210
[  128.206133][ T7117]  ? sb_set_blocksize+0x8c/0x150
[  128.206157][ T7117]  ? setup_bdev_super+0x19d/0x330
[  128.206178][ T7117]  ? __pfx_gfs2_fill_super+0x10/0x10
[  128.206211][ T7117]  get_tree_bdev_flags+0x1c0/0x290
[  128.206237][ T7117]  gfs2_get_tree+0x26/0xd0
[  128.206267][ T7117]  vfs_get_tree+0x30/0x120
[  128.206286][ T7117]  path_mount+0x5a9/0x1350
[  128.206317][ T7117]  ? putname+0x78/0xe0
[  128.206347][ T7117]  __x64_sys_mount+0x1a3/0x1e0
[  128.206378][ T7117]  do_syscall_64+0xa4/0xf80
[  128.206410][ T7117]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  128.206432][ T7117] RIP: 0033:0x7fc30eb9c14a
[  128.206447][ T7117] 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
[  128.206467][ T7117] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  128.206486][ T7117] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  128.206500][ T7117] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  128.206514][ T7117] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  128.206527][ T7117] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  128.206540][ T7117] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  128.206556][ T7117]  </TASK>
[  128.206565][ T7117] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  128.278329][ T6336] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  128.280407][ T7098] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  128.284078][ T6336] CPU: 0 UID: 0 PID: 6336 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  128.284106][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  128.284118][ T6336] Call Trace:
[  128.284124][ T6336]  <TASK>
[  128.284132][ T6336]  dump_stack_lvl+0x97/0xe0
[  128.284160][ T6336]  gfs2_withdraw.cold+0xa/0x77
[  128.284182][ T6336]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  128.284202][ T6336]  gfs2_ail1_flush+0x497/0x7e0
[  128.284240][ T6336]  gfs2_ail1_start+0x4f/0x80
[  128.284278][ T6336]  gfs2_log_flush+0xf95/0x1170
[  128.284298][ T6336]  gfs2_kill_sb+0x3e/0x1e0
[  128.284329][ T6336]  deactivate_locked_super+0x4f/0x120
[  128.284355][ T6336]  deactivate_super+0xa4/0xc0
[  128.284378][ T6336]  cleanup_mnt+0x145/0x1f0
[  128.284402][ T6336]  task_work_run+0x95/0xf0
[  128.284434][ T6336]  exit_to_user_mode_loop+0xcf/0x440
[  128.284462][ T6336]  do_syscall_64+0x2b8/0xf80
[  128.284495][ T6336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  128.284517][ T6336] RIP: 0033:0x7f41b599c117
[  128.284532][ T6336] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  128.284553][ T6336] RSP: 002b:00007ffe93807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  128.284572][ T6336] RAX: 0000000000000000 RBX: 00007f41b5a0471f RCX: 00007f41b599c117
[  128.284586][ T6336] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe93807230
[  128.284599][ T6336] RBP: 00007ffe93807230 R08: 00007ffe93808230 R09: 00000000ffffffff
[  128.284613][ T6336] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe938082c0
[  128.284626][ T6336] R13: 00007f41b5a0471f R14: 000000000001ec51 R15: 00007ffe93808300
[  128.284643][ T6336]  </TASK>
[  128.284649][ T6336] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  128.314118][ T7117] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  131.552351][ T1309] ieee802154 phy0 wpan0: encryption failed: -22
[  131.558637][ T1309] ieee802154 phy1 wpan1: encryption failed: -22
[  133.392731][ T6983] gfs2: fsid=syz:syz.0: file system withdrawn
[  133.479365][ T7122] set_capacity_and_notify: 3 callbacks suppressed
[  133.479375][ T7122] loop0: detected capacity change from 0 to 32768
[  133.496320][ T7122] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  133.504564][ T7122] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  133.517331][ T7122] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  133.525211][   T23] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  133.532100][   T23] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  133.542278][   T23] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  133.549696][   T23] gfs2: fsid=syz:syz.0: jid=0: Done
[  133.554936][ T7122] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  133.584736][ T7122] gfs2: fsid=syz:syz.0: found 1 quota changes
[  133.593326][ T6336] syz-executor: attempt to access beyond end of device
[  133.593326][ T6336] loop0: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  133.608044][ T6336] Buffer I/O error on dev loop0, logical block 8589934885, lost async page write
[  133.617179][ T6336] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  133.630398][ T6336] CPU: 0 UID: 0 PID: 6336 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  133.630415][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  133.630427][ T6336] Call Trace:
[  133.630432][ T6336]  <TASK>
[  133.630436][ T6336]  dump_stack_lvl+0x97/0xe0
[  133.630454][ T6336]  gfs2_withdraw.cold+0xa/0x77
[  133.630466][ T6336]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  133.630478][ T6336]  gfs2_ail1_flush+0x497/0x7e0
[  133.630500][ T6336]  gfs2_ail1_start+0x4f/0x80
[  133.630521][ T6336]  gfs2_log_flush+0xf95/0x1170
[  133.630533][ T6336]  gfs2_kill_sb+0x3e/0x1e0
[  133.630550][ T6336]  deactivate_locked_super+0x4f/0x120
[  133.630565][ T6336]  deactivate_super+0xa4/0xc0
[  133.630577][ T6336]  cleanup_mnt+0x145/0x1f0
[  133.630591][ T6336]  task_work_run+0x95/0xf0
[  133.630609][ T6336]  exit_to_user_mode_loop+0xcf/0x440
[  133.630625][ T6336]  do_syscall_64+0x2b8/0xf80
[  133.630644][ T6336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  133.630661][ T6336] RIP: 0033:0x7f41b599c117
[  133.630680][ T6336] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  133.630693][ T6336] RSP: 002b:00007ffe93807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  133.630705][ T6336] RAX: 0000000000000000 RBX: 00007f41b5a0471f RCX: 00007f41b599c117
[  133.630712][ T6336] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe93807230
[  133.630720][ T6336] RBP: 00007ffe93807230 R08: 00007ffe93808230 R09: 00000000ffffffff
[  133.630727][ T6336] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe938082c0
[  133.630737][ T6336] R13: 00007f41b5a0471f R14: 000000000002090d R15: 00007ffe93808300
[  133.630747][ T6336]  </TASK>
[  133.630750][ T6336] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  138.832893][ T6983] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:07:29 executed programs: 68
[  141.303171][ T7132] loop1: detected capacity change from 0 to 32768
[  141.335423][ T7133] loop2: detected capacity change from 0 to 32768
[  141.344684][ T7135] loop4: detected capacity change from 0 to 32768
[  141.351560][ T7132] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  141.361073][ T7132] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  141.382320][ T7132] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  141.391312][ T6983] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  141.391965][ T7133] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.398476][ T6983] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  141.417073][ T7138] loop3: detected capacity change from 0 to 32768
[  141.424656][ T7135] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.449614][ T7143] loop6: detected capacity change from 0 to 32768
[  141.456757][ T7135] CPU: 1 UID: 0 PID: 7135 Comm: syz.4.75 Not tainted syzkaller #0 PREEMPT(full) 
[  141.456784][ T7135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.456796][ T7135] Call Trace:
[  141.456802][ T7135]  <TASK>
[  141.456808][ T7135]  dump_stack_lvl+0x97/0xe0
[  141.456836][ T7135]  sysfs_warn_dup.cold+0x1c/0x28
[  141.456868][ T7135]  sysfs_create_dir_ns+0x129/0x140
[  141.456896][ T7135]  kobject_add_internal+0x104/0x310
[  141.456921][ T7135]  kobject_init_and_add+0xb2/0xf0
[  141.456947][ T7135]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.456975][ T7135]  gfs2_sys_fs_add+0xef/0x200
[  141.457006][ T7135]  gfs2_fill_super+0x896/0x1210
[  141.457041][ T7135]  ? sb_set_blocksize+0x8c/0x150
[  141.457066][ T7135]  ? setup_bdev_super+0x19d/0x330
[  141.457088][ T7135]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.457123][ T7135]  get_tree_bdev_flags+0x1c0/0x290
[  141.457151][ T7135]  gfs2_get_tree+0x26/0xd0
[  141.457181][ T7135]  vfs_get_tree+0x30/0x120
[  141.457201][ T7135]  path_mount+0x5a9/0x1350
[  141.457234][ T7135]  ? putname+0x78/0xe0
[  141.457266][ T7135]  __x64_sys_mount+0x1a3/0x1e0
[  141.457295][ T7135]  do_syscall_64+0xa4/0xf80
[  141.457329][ T7135]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.457352][ T7135] RIP: 0033:0x7f9543b9c14a
[  141.457367][ T7135] 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
[  141.457386][ T7135] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.457404][ T7135] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  141.457418][ T7135] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  141.457432][ T7135] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  141.457445][ T7135] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.457459][ T7135] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  141.457475][ T7135]  </TASK>
[  141.457485][ T7135] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.466636][ T7133] CPU: 0 UID: 0 PID: 7133 Comm: syz.2.73 Not tainted syzkaller #0 PREEMPT(full) 
[  141.466663][ T7133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.466676][ T7133] Call Trace:
[  141.466681][ T7133]  <TASK>
[  141.466688][ T7133]  dump_stack_lvl+0x97/0xe0
[  141.466715][ T7133]  sysfs_warn_dup.cold+0x1c/0x28
[  141.466747][ T7133]  sysfs_create_dir_ns+0x129/0x140
[  141.466774][ T7133]  kobject_add_internal+0x104/0x310
[  141.466798][ T7133]  kobject_init_and_add+0xb2/0xf0
[  141.466822][ T7133]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.466850][ T7133]  gfs2_sys_fs_add+0xef/0x200
[  141.466880][ T7133]  gfs2_fill_super+0x896/0x1210
[  141.466914][ T7133]  ? sb_set_blocksize+0x8c/0x150
[  141.466938][ T7133]  ? setup_bdev_super+0x19d/0x330
[  141.466960][ T7133]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.467002][ T7133]  get_tree_bdev_flags+0x1c0/0x290
[  141.467028][ T7133]  gfs2_get_tree+0x26/0xd0
[  141.467059][ T7133]  vfs_get_tree+0x30/0x120
[  141.467077][ T7133]  path_mount+0x5a9/0x1350
[  141.467108][ T7133]  ? putname+0x78/0xe0
[  141.467138][ T7133]  __x64_sys_mount+0x1a3/0x1e0
[  141.467170][ T7133]  do_syscall_64+0xa4/0xf80
[  141.467202][ T7133]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.467223][ T7133] RIP: 0033:0x7f808a39c14a
[  141.467238][ T7133] 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
[  141.467259][ T7133] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.467278][ T7133] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  141.467292][ T7133] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  141.467306][ T7133] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  141.467319][ T7133] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.467332][ T7133] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  141.467348][ T7133]  </TASK>
[  141.467359][ T7133] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.499355][ T7139] loop5: detected capacity change from 0 to 32768
[  141.504424][ T6983] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 105ms
[  141.511741][ T7135] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  141.531603][ T6983] gfs2: fsid=syz:syz.0: jid=0: Done
[  141.544915][ T7142] loop0: detected capacity change from 0 to 32768
[  141.611830][ T7132] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  141.632615][ T7138] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.648293][ T7143] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.701748][ T7133] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  141.705877][ T7138] CPU: 1 UID: 0 PID: 7138 Comm: syz.3.74 Not tainted syzkaller #0 PREEMPT(full) 
[  141.705904][ T7138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.705916][ T7138] Call Trace:
[  141.705921][ T7138]  <TASK>
[  141.705927][ T7138]  dump_stack_lvl+0x97/0xe0
[  141.705955][ T7138]  sysfs_warn_dup.cold+0x1c/0x28
[  141.705987][ T7138]  sysfs_create_dir_ns+0x129/0x140
[  141.706013][ T7138]  kobject_add_internal+0x104/0x310
[  141.706038][ T7138]  kobject_init_and_add+0xb2/0xf0
[  141.706063][ T7138]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.706091][ T7138]  gfs2_sys_fs_add+0xef/0x200
[  141.706120][ T7138]  gfs2_fill_super+0x896/0x1210
[  141.706154][ T7138]  ? sb_set_blocksize+0x8c/0x150
[  141.706177][ T7138]  ? setup_bdev_super+0x19d/0x330
[  141.706199][ T7138]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.706232][ T7138]  get_tree_bdev_flags+0x1c0/0x290
[  141.706258][ T7138]  gfs2_get_tree+0x26/0xd0
[  141.706288][ T7138]  vfs_get_tree+0x30/0x120
[  141.706307][ T7138]  path_mount+0x5a9/0x1350
[  141.706338][ T7138]  ? putname+0x78/0xe0
[  141.706368][ T7138]  __x64_sys_mount+0x1a3/0x1e0
[  141.706400][ T7138]  do_syscall_64+0xa4/0xf80
[  141.706431][ T7138]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.706460][ T7138] RIP: 0033:0x7f1c4f59c14a
[  141.706476][ T7138] 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
[  141.706496][ T7138] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.706515][ T7138] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  141.706529][ T7138] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  141.706542][ T7138] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  141.706556][ T7138] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.706569][ T7138] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  141.706586][ T7138]  </TASK>
[  141.706595][ T7138] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.717259][ T7143] CPU: 0 UID: 0 PID: 7143 Comm: syz.6.77 Not tainted syzkaller #0 PREEMPT(full) 
[  141.717285][ T7143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.717297][ T7143] Call Trace:
[  141.717303][ T7143]  <TASK>
[  141.717309][ T7143]  dump_stack_lvl+0x97/0xe0
[  141.717336][ T7143]  sysfs_warn_dup.cold+0x1c/0x28
[  141.717368][ T7143]  sysfs_create_dir_ns+0x129/0x140
[  141.717395][ T7143]  kobject_add_internal+0x104/0x310
[  141.717420][ T7143]  kobject_init_and_add+0xb2/0xf0
[  141.717445][ T7143]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.717473][ T7143]  gfs2_sys_fs_add+0xef/0x200
[  141.717502][ T7143]  gfs2_fill_super+0x896/0x1210
[  141.717537][ T7143]  ? sb_set_blocksize+0x8c/0x150
[  141.717560][ T7143]  ? setup_bdev_super+0x19d/0x330
[  141.717582][ T7143]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.717616][ T7143]  get_tree_bdev_flags+0x1c0/0x290
[  141.717642][ T7143]  gfs2_get_tree+0x26/0xd0
[  141.717673][ T7143]  vfs_get_tree+0x30/0x120
[  141.717692][ T7143]  path_mount+0x5a9/0x1350
[  141.717731][ T7143]  ? putname+0x78/0xe0
[  141.717760][ T7143]  __x64_sys_mount+0x1a3/0x1e0
[  141.717793][ T7143]  do_syscall_64+0xa4/0xf80
[  141.717825][ T7143]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.717847][ T7143] RIP: 0033:0x7fc30eb9c14a
[  141.717863][ T7143] 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
[  141.717890][ T7143] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.717913][ T7143] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  141.717927][ T7143] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  141.717941][ T7143] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  141.717954][ T7143] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.717968][ T7143] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  141.717984][ T7143]  </TASK>
[  141.717993][ T7143] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.721574][ T7138] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  141.761772][ T7143] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  141.783616][ T7139] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.820183][ T7142] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  141.903751][ T7139] CPU: 1 UID: 0 PID: 7139 Comm: syz.5.76 Not tainted syzkaller #0 PREEMPT(full) 
[  141.903780][ T7139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.903793][ T7139] Call Trace:
[  141.903806][ T7139]  <TASK>
[  141.903812][ T7139]  dump_stack_lvl+0x97/0xe0
[  141.903847][ T7139]  sysfs_warn_dup.cold+0x1c/0x28
[  141.903880][ T7139]  sysfs_create_dir_ns+0x129/0x140
[  141.903908][ T7139]  kobject_add_internal+0x104/0x310
[  141.903934][ T7139]  kobject_init_and_add+0xb2/0xf0
[  141.903960][ T7139]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.903989][ T7139]  gfs2_sys_fs_add+0xef/0x200
[  141.904020][ T7139]  gfs2_fill_super+0x896/0x1210
[  141.904054][ T7139]  ? sb_set_blocksize+0x8c/0x150
[  141.904079][ T7139]  ? setup_bdev_super+0x19d/0x330
[  141.904102][ T7139]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.904136][ T7139]  get_tree_bdev_flags+0x1c0/0x290
[  141.904164][ T7139]  gfs2_get_tree+0x26/0xd0
[  141.904196][ T7139]  vfs_get_tree+0x30/0x120
[  141.904215][ T7139]  path_mount+0x5a9/0x1350
[  141.904248][ T7139]  ? putname+0x78/0xe0
[  141.904278][ T7139]  __x64_sys_mount+0x1a3/0x1e0
[  141.904312][ T7139]  do_syscall_64+0xa4/0xf80
[  141.904344][ T7139]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.904368][ T7139] RIP: 0033:0x7f6d7c39c14a
[  141.904384][ T7139] 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
[  141.904405][ T7139] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.904426][ T7139] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  141.904440][ T7139] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  141.904455][ T7139] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  141.904469][ T7139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.904482][ T7139] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  141.904499][ T7139]  </TASK>
[  141.904509][ T7139] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.907037][ T7142] CPU: 0 UID: 0 PID: 7142 Comm: syz.0.71 Not tainted syzkaller #0 PREEMPT(full) 
[  141.907063][ T7142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  141.907075][ T7142] Call Trace:
[  141.907080][ T7142]  <TASK>
[  141.907086][ T7142]  dump_stack_lvl+0x97/0xe0
[  141.907111][ T7142]  sysfs_warn_dup.cold+0x1c/0x28
[  141.907142][ T7142]  sysfs_create_dir_ns+0x129/0x140
[  141.907168][ T7142]  kobject_add_internal+0x104/0x310
[  141.907192][ T7142]  kobject_init_and_add+0xb2/0xf0
[  141.907217][ T7142]  ? alloc_workqueue_noprof+0xe0/0xb60
[  141.907245][ T7142]  gfs2_sys_fs_add+0xef/0x200
[  141.907273][ T7142]  gfs2_fill_super+0x896/0x1210
[  141.907307][ T7142]  ? sb_set_blocksize+0x8c/0x150
[  141.907330][ T7142]  ? setup_bdev_super+0x19d/0x330
[  141.907351][ T7142]  ? __pfx_gfs2_fill_super+0x10/0x10
[  141.907384][ T7142]  get_tree_bdev_flags+0x1c0/0x290
[  141.907410][ T7142]  gfs2_get_tree+0x26/0xd0
[  141.907441][ T7142]  vfs_get_tree+0x30/0x120
[  141.907460][ T7142]  path_mount+0x5a9/0x1350
[  141.907490][ T7142]  ? putname+0x78/0xe0
[  141.907521][ T7142]  __x64_sys_mount+0x1a3/0x1e0
[  141.907560][ T7142]  do_syscall_64+0xa4/0xf80
[  141.907591][ T7142]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  141.907612][ T7142] RIP: 0033:0x7f41b599c14a
[  141.907627][ T7142] 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
[  141.907648][ T7142] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  141.907667][ T7142] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  141.907680][ T7142] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  141.907694][ T7142] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  141.907707][ T7142] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  141.907720][ T7142] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  141.907741][ T7142]  </TASK>
[  141.907749][ T7142] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  141.954182][ T7139] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  142.011071][ T7132] gfs2: fsid=syz:syz.0: found 1 quota changes
[  142.016447][ T7142] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  142.395740][ T7165] loop4: detected capacity change from 0 to 32768
[  142.446256][ T6342] syz-executor: attempt to access beyond end of device
[  142.446256][ T6342] loop1: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  142.592012][ T7172] loop5: detected capacity change from 0 to 32768
[  142.598270][ T6342] Buffer I/O error on dev loop1, logical block 8589934885, lost async page write
[  142.625682][ T7167] loop2: detected capacity change from 0 to 32768
[  142.630070][ T6342] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  142.872493][ T6342] CPU: 0 UID: 0 PID: 6342 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  142.872519][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  142.872531][ T6342] Call Trace:
[  142.872536][ T6342]  <TASK>
[  142.872542][ T6342]  dump_stack_lvl+0x97/0xe0
[  142.872569][ T6342]  gfs2_withdraw.cold+0xa/0x77
[  142.872588][ T6342]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  142.872610][ T6342]  gfs2_ail1_flush+0x497/0x7e0
[  142.872646][ T6342]  gfs2_ail1_start+0x4f/0x80
[  142.872683][ T6342]  gfs2_log_flush+0xf95/0x1170
[  142.872704][ T6342]  gfs2_kill_sb+0x3e/0x1e0
[  142.872734][ T6342]  deactivate_locked_super+0x4f/0x120
[  142.872758][ T6342]  deactivate_super+0xa4/0xc0
[  142.872781][ T6342]  cleanup_mnt+0x145/0x1f0
[  142.872805][ T6342]  task_work_run+0x95/0xf0
[  142.872836][ T6342]  exit_to_user_mode_loop+0xcf/0x440
[  142.872864][ T6342]  do_syscall_64+0x2b8/0xf80
[  142.872897][ T6342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  142.872918][ T6342] RIP: 0033:0x7fa046f9c117
[  142.872933][ T6342] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  142.872954][ T6342] RSP: 002b:00007fffb055c848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  142.872973][ T6342] RAX: 0000000000000000 RBX: 00007fa04700471f RCX: 00007fa046f9c117
[  142.872987][ T6342] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb055c900
[  142.872999][ T6342] RBP: 00007fffb055c900 R08: 00007fffb055d900 R09: 00000000ffffffff
[  142.873013][ T6342] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb055d990
[  142.873025][ T6342] R13: 00007fa04700471f R14: 00000000000226d8 R15: 00007fffb055d9d0
[  142.873041][ T6342]  </TASK>
[  142.873048][ T6342] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  142.961985][ T7165] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.031764][ T7172] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.032555][ T7165] CPU: 1 UID: 0 PID: 7165 Comm: syz.4.79 Not tainted syzkaller #0 PREEMPT(full) 
[  143.032581][ T7165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.032594][ T7165] Call Trace:
[  143.032600][ T7165]  <TASK>
[  143.032606][ T7165]  dump_stack_lvl+0x97/0xe0
[  143.032634][ T7165]  sysfs_warn_dup.cold+0x1c/0x28
[  143.032674][ T7165]  sysfs_create_dir_ns+0x129/0x140
[  143.032701][ T7165]  kobject_add_internal+0x104/0x310
[  143.032726][ T7165]  kobject_init_and_add+0xb2/0xf0
[  143.032751][ T7165]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.032779][ T7165]  gfs2_sys_fs_add+0xef/0x200
[  143.032808][ T7165]  gfs2_fill_super+0x896/0x1210
[  143.032843][ T7165]  ? sb_set_blocksize+0x8c/0x150
[  143.032867][ T7165]  ? setup_bdev_super+0x19d/0x330
[  143.032889][ T7165]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.032923][ T7165]  get_tree_bdev_flags+0x1c0/0x290
[  143.032949][ T7165]  gfs2_get_tree+0x26/0xd0
[  143.032980][ T7165]  vfs_get_tree+0x30/0x120
[  143.032999][ T7165]  path_mount+0x5a9/0x1350
[  143.033030][ T7165]  ? putname+0x78/0xe0
[  143.033061][ T7165]  __x64_sys_mount+0x1a3/0x1e0
[  143.033093][ T7165]  do_syscall_64+0xa4/0xf80
[  143.033125][ T7165]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.033147][ T7165] RIP: 0033:0x7f9543b9c14a
[  143.033163][ T7165] 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
[  143.033195][ T7165] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.033214][ T7165] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  143.033233][ T7165] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  143.033246][ T7165] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  143.033260][ T7165] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.033273][ T7165] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  143.033290][ T7165]  </TASK>
[  143.033298][ T7165] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  143.051743][ T7172] CPU: 0 UID: 0 PID: 7172 Comm: syz.5.82 Not tainted syzkaller #0 PREEMPT(full) 
[  143.051770][ T7172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.051783][ T7172] Call Trace:
[  143.051788][ T7172]  <TASK>
[  143.051795][ T7172]  dump_stack_lvl+0x97/0xe0
[  143.051822][ T7172]  sysfs_warn_dup.cold+0x1c/0x28
[  143.051855][ T7172]  sysfs_create_dir_ns+0x129/0x140
[  143.051881][ T7172]  kobject_add_internal+0x104/0x310
[  143.051905][ T7172]  kobject_init_and_add+0xb2/0xf0
[  143.051930][ T7172]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.051957][ T7172]  gfs2_sys_fs_add+0xef/0x200
[  143.051986][ T7172]  gfs2_fill_super+0x896/0x1210
[  143.052022][ T7172]  ? sb_set_blocksize+0x8c/0x150
[  143.052046][ T7172]  ? setup_bdev_super+0x19d/0x330
[  143.052067][ T7172]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.052100][ T7172]  get_tree_bdev_flags+0x1c0/0x290
[  143.052126][ T7172]  gfs2_get_tree+0x26/0xd0
[  143.052156][ T7172]  vfs_get_tree+0x30/0x120
[  143.052175][ T7172]  path_mount+0x5a9/0x1350
[  143.052206][ T7172]  ? putname+0x78/0xe0
[  143.052235][ T7172]  __x64_sys_mount+0x1a3/0x1e0
[  143.052265][ T7172]  do_syscall_64+0xa4/0xf80
[  143.052297][ T7172]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.052318][ T7172] RIP: 0033:0x7f6d7c39c14a
[  143.052334][ T7172] 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
[  143.052354][ T7172] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.052374][ T7172] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  143.052388][ T7172] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  143.052401][ T7172] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  143.052439][ T7172] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.052452][ T7172] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  143.052468][ T7172]  </TASK>
[  143.052480][ T7172] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  143.057830][ T7167] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.075489][ T7172] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  143.087747][ T7167] CPU: 1 UID: 0 PID: 7167 Comm: syz.2.78 Not tainted syzkaller #0 PREEMPT(full) 
[  143.087772][ T7167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.087784][ T7167] Call Trace:
[  143.087789][ T7167]  <TASK>
[  143.087795][ T7167]  dump_stack_lvl+0x97/0xe0
[  143.087822][ T7167]  sysfs_warn_dup.cold+0x1c/0x28
[  143.087855][ T7167]  sysfs_create_dir_ns+0x129/0x140
[  143.087882][ T7167]  kobject_add_internal+0x104/0x310
[  143.087907][ T7167]  kobject_init_and_add+0xb2/0xf0
[  143.087932][ T7167]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.087960][ T7167]  gfs2_sys_fs_add+0xef/0x200
[  143.087990][ T7167]  gfs2_fill_super+0x896/0x1210
[  143.088025][ T7167]  ? sb_set_blocksize+0x8c/0x150
[  143.088049][ T7167]  ? setup_bdev_super+0x19d/0x330
[  143.088072][ T7167]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.088106][ T7167]  get_tree_bdev_flags+0x1c0/0x290
[  143.088132][ T7167]  gfs2_get_tree+0x26/0xd0
[  143.088163][ T7167]  vfs_get_tree+0x30/0x120
[  143.088182][ T7167]  path_mount+0x5a9/0x1350
[  143.088213][ T7167]  ? putname+0x78/0xe0
[  143.088244][ T7167]  __x64_sys_mount+0x1a3/0x1e0
[  143.088277][ T7167]  do_syscall_64+0xa4/0xf80
[  143.088308][ T7167]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.088330][ T7167] RIP: 0033:0x7f808a39c14a
[  143.088346][ T7167] 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
[  143.088367][ T7167] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.088387][ T7167] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  143.088401][ T7167] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  143.088414][ T7167] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  143.088427][ T7167] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.088441][ T7167] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  143.088457][ T7167]  </TASK>
[  143.088467][ T7167] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  143.091011][ T7165] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  143.095525][ T7167] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  143.113427][ T7170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.121958][ T7169] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.126167][ T7170] CPU: 0 UID: 0 PID: 7170 Comm: syz.3.80 Not tainted syzkaller #0 PREEMPT(full) 
[  143.126194][ T7170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.126205][ T7170] Call Trace:
[  143.126210][ T7170]  <TASK>
[  143.126217][ T7170]  dump_stack_lvl+0x97/0xe0
[  143.126243][ T7170]  sysfs_warn_dup.cold+0x1c/0x28
[  143.126274][ T7170]  sysfs_create_dir_ns+0x129/0x140
[  143.126301][ T7170]  kobject_add_internal+0x104/0x310
[  143.126325][ T7170]  kobject_init_and_add+0xb2/0xf0
[  143.126349][ T7170]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.126377][ T7170]  gfs2_sys_fs_add+0xef/0x200
[  143.126413][ T7170]  gfs2_fill_super+0x896/0x1210
[  143.126447][ T7170]  ? sb_set_blocksize+0x8c/0x150
[  143.126471][ T7170]  ? setup_bdev_super+0x19d/0x330
[  143.126493][ T7170]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.126526][ T7170]  get_tree_bdev_flags+0x1c0/0x290
[  143.126551][ T7170]  gfs2_get_tree+0x26/0xd0
[  143.126582][ T7170]  vfs_get_tree+0x30/0x120
[  143.126601][ T7170]  path_mount+0x5a9/0x1350
[  143.126632][ T7170]  ? putname+0x78/0xe0
[  143.126661][ T7170]  __x64_sys_mount+0x1a3/0x1e0
[  143.126693][ T7170]  do_syscall_64+0xa4/0xf80
[  143.126725][ T7170]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.126746][ T7170] RIP: 0033:0x7f1c4f59c14a
[  143.126762][ T7170] 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
[  143.126783][ T7170] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.126801][ T7170] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  143.126815][ T7170] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  143.126829][ T7170] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  143.126842][ T7170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.126855][ T7170] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  143.126871][ T7170]  </TASK>
[  143.126880][ T7170] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  143.130650][ T7169] CPU: 1 UID: 0 PID: 7169 Comm: syz.6.81 Not tainted syzkaller #0 PREEMPT(full) 
[  143.130681][ T7169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.130692][ T7169] Call Trace:
[  143.130697][ T7169]  <TASK>
[  143.130704][ T7169]  dump_stack_lvl+0x97/0xe0
[  143.130728][ T7169]  sysfs_warn_dup.cold+0x1c/0x28
[  143.130760][ T7169]  sysfs_create_dir_ns+0x129/0x140
[  143.130786][ T7169]  kobject_add_internal+0x104/0x310
[  143.130810][ T7169]  kobject_init_and_add+0xb2/0xf0
[  143.130834][ T7169]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.130862][ T7169]  gfs2_sys_fs_add+0xef/0x200
[  143.130890][ T7169]  gfs2_fill_super+0x896/0x1210
[  143.130925][ T7169]  ? sb_set_blocksize+0x8c/0x150
[  143.130948][ T7169]  ? setup_bdev_super+0x19d/0x330
[  143.130969][ T7169]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.131003][ T7169]  get_tree_bdev_flags+0x1c0/0x290
[  143.131029][ T7169]  gfs2_get_tree+0x26/0xd0
[  143.131061][ T7169]  vfs_get_tree+0x30/0x120
[  143.131080][ T7169]  path_mount+0x5a9/0x1350
[  143.131111][ T7169]  ? putname+0x78/0xe0
[  143.131140][ T7169]  __x64_sys_mount+0x1a3/0x1e0
[  143.131173][ T7169]  do_syscall_64+0xa4/0xf80
[  143.131204][ T7169]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.131226][ T7169] RIP: 0033:0x7fc30eb9c14a
[  143.131241][ T7169] 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
[  143.131261][ T7169] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.131280][ T7169] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  143.131293][ T7169] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  143.131307][ T7169] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  143.131321][ T7169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.131334][ T7169] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  143.131350][ T7169]  </TASK>
[  143.131359][ T7169] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  143.135583][ T7170] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  143.196922][ T7174] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  143.293481][ T7169] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  143.301363][ T7174] CPU: 0 UID: 0 PID: 7174 Comm: syz.0.84 Not tainted syzkaller #0 PREEMPT(full) 
[  143.301391][ T7174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  143.301404][ T7174] Call Trace:
[  143.301409][ T7174]  <TASK>
[  143.301415][ T7174]  dump_stack_lvl+0x97/0xe0
[  143.301443][ T7174]  sysfs_warn_dup.cold+0x1c/0x28
[  143.301480][ T7174]  sysfs_create_dir_ns+0x129/0x140
[  143.301507][ T7174]  kobject_add_internal+0x104/0x310
[  143.301531][ T7174]  kobject_init_and_add+0xb2/0xf0
[  143.301556][ T7174]  ? alloc_workqueue_noprof+0xe0/0xb60
[  143.301590][ T7174]  gfs2_sys_fs_add+0xef/0x200
[  143.301621][ T7174]  gfs2_fill_super+0x896/0x1210
[  143.301655][ T7174]  ? sb_set_blocksize+0x8c/0x150
[  143.301680][ T7174]  ? setup_bdev_super+0x19d/0x330
[  143.301704][ T7174]  ? __pfx_gfs2_fill_super+0x10/0x10
[  143.301739][ T7174]  get_tree_bdev_flags+0x1c0/0x290
[  143.301766][ T7174]  gfs2_get_tree+0x26/0xd0
[  143.301796][ T7174]  vfs_get_tree+0x30/0x120
[  143.301816][ T7174]  path_mount+0x5a9/0x1350
[  143.301847][ T7174]  ? putname+0x78/0xe0
[  143.301877][ T7174]  __x64_sys_mount+0x1a3/0x1e0
[  143.301909][ T7174]  do_syscall_64+0xa4/0xf80
[  143.301941][ T7174]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  143.301962][ T7174] RIP: 0033:0x7f41b599c14a
[  143.301978][ T7174] 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
[  143.301999][ T7174] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  143.302018][ T7174] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  143.302033][ T7174] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  143.302046][ T7174] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  143.302060][ T7174] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  143.302073][ T7174] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  143.302089][ T7174]  </TASK>
[  143.302333][ T7174] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  144.381762][ T7174] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  148.032910][ T6921] gfs2: fsid=syz:syz.0: file system withdrawn
[  148.117538][ T7197] set_capacity_and_notify: 3 callbacks suppressed
[  148.117548][ T7197] loop1: detected capacity change from 0 to 32768
[  148.132942][ T7197] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  148.141131][ T7197] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  148.153153][ T7197] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  148.161202][ T7192] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  148.168001][ T7192] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  148.178071][ T7192] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  148.186065][ T7192] gfs2: fsid=syz:syz.0: jid=0: Done
[  148.191267][ T7197] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  148.218096][ T7197] gfs2: fsid=syz:syz.0: found 1 quota changes
[  148.227057][ T6342] syz-executor: attempt to access beyond end of device
[  148.227057][ T6342] loop1: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  148.241865][ T6342] Buffer I/O error on dev loop1, logical block 8589934885, lost async page write
[  148.250991][ T6342] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  148.264206][ T6342] CPU: 1 UID: 0 PID: 6342 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  148.264232][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  148.264242][ T6342] Call Trace:
[  148.264248][ T6342]  <TASK>
[  148.264254][ T6342]  dump_stack_lvl+0x97/0xe0
[  148.264279][ T6342]  gfs2_withdraw.cold+0xa/0x77
[  148.264296][ T6342]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  148.264314][ T6342]  gfs2_ail1_flush+0x497/0x7e0
[  148.264350][ T6342]  gfs2_ail1_start+0x4f/0x80
[  148.264392][ T6342]  gfs2_log_flush+0xf95/0x1170
[  148.264414][ T6342]  gfs2_kill_sb+0x3e/0x1e0
[  148.264446][ T6342]  deactivate_locked_super+0x4f/0x120
[  148.264470][ T6342]  deactivate_super+0xa4/0xc0
[  148.264493][ T6342]  cleanup_mnt+0x145/0x1f0
[  148.264517][ T6342]  task_work_run+0x95/0xf0
[  148.264548][ T6342]  exit_to_user_mode_loop+0xcf/0x440
[  148.264575][ T6342]  do_syscall_64+0x2b8/0xf80
[  148.264607][ T6342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  148.264629][ T6342] RIP: 0033:0x7fa046f9c117
[  148.264644][ T6342] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  148.264664][ T6342] RSP: 002b:00007fffb055c848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  148.264684][ T6342] RAX: 0000000000000000 RBX: 00007fa04700471f RCX: 00007fa046f9c117
[  148.264697][ T6342] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb055c900
[  148.264710][ T6342] RBP: 00007fffb055c900 R08: 00007fffb055d900 R09: 00000000ffffffff
[  148.264724][ T6342] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb055d990
[  148.264738][ T6342] R13: 00007fa04700471f R14: 0000000000024245 R15: 00007fffb055d9d0
[  148.264756][ T6342]  </TASK>
[  148.264763][ T6342] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  153.472827][ T7051] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:07:44 executed programs: 82
[  155.919189][ T7213] loop3: detected capacity change from 0 to 32768
[  155.929650][ T7211] loop4: detected capacity change from 0 to 32768
[  155.934611][ T7215] loop5: detected capacity change from 0 to 32768
[  155.938718][ T7216] loop2: detected capacity change from 0 to 32768
[  155.942672][ T7208] loop1: detected capacity change from 0 to 32768
[  155.989294][ T7209] loop6: detected capacity change from 0 to 32768
[  155.996665][ T7217] loop0: detected capacity change from 0 to 32768
[  155.996687][ T7215] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  156.012129][ T7211] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.019504][ T7211] CPU: 0 UID: 0 PID: 7211 Comm: syz.4.89 Not tainted syzkaller #0 PREEMPT(full) 
[  156.019529][ T7211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.019542][ T7211] Call Trace:
[  156.019548][ T7211]  <TASK>
[  156.019554][ T7211]  dump_stack_lvl+0x97/0xe0
[  156.019588][ T7211]  sysfs_warn_dup.cold+0x1c/0x28
[  156.019619][ T7211]  sysfs_create_dir_ns+0x129/0x140
[  156.019645][ T7211]  kobject_add_internal+0x104/0x310
[  156.019668][ T7211]  kobject_init_and_add+0xb2/0xf0
[  156.019693][ T7211]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.019721][ T7211]  gfs2_sys_fs_add+0xef/0x200
[  156.019749][ T7211]  gfs2_fill_super+0x896/0x1210
[  156.019783][ T7211]  ? sb_set_blocksize+0x8c/0x150
[  156.019807][ T7211]  ? setup_bdev_super+0x19d/0x330
[  156.019829][ T7211]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.019862][ T7211]  get_tree_bdev_flags+0x1c0/0x290
[  156.019888][ T7211]  gfs2_get_tree+0x26/0xd0
[  156.019917][ T7211]  vfs_get_tree+0x30/0x120
[  156.019935][ T7211]  path_mount+0x5a9/0x1350
[  156.019966][ T7211]  ? putname+0x78/0xe0
[  156.019995][ T7211]  __x64_sys_mount+0x1a3/0x1e0
[  156.020026][ T7211]  do_syscall_64+0xa4/0xf80
[  156.020056][ T7211]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.020079][ T7211] RIP: 0033:0x7f9543b9c14a
[  156.020094][ T7211] 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
[  156.020115][ T7211] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.020134][ T7211] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  156.020149][ T7211] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  156.020163][ T7211] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  156.020176][ T7211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.020190][ T7211] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  156.020207][ T7211]  </TASK>
[  156.020216][ T7211] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.036161][ T7215] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  156.050976][ T7211] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.055168][ T7208] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.060206][ T7216] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.068509][ T7213] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.070427][ T7216] CPU: 0 UID: 0 PID: 7216 Comm: syz.2.87 Not tainted syzkaller #0 PREEMPT(full) 
[  156.070453][ T7216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.070466][ T7216] Call Trace:
[  156.070472][ T7216]  <TASK>
[  156.070478][ T7216]  dump_stack_lvl+0x97/0xe0
[  156.070505][ T7216]  sysfs_warn_dup.cold+0x1c/0x28
[  156.070538][ T7216]  sysfs_create_dir_ns+0x129/0x140
[  156.070570][ T7216]  kobject_add_internal+0x104/0x310
[  156.070594][ T7216]  kobject_init_and_add+0xb2/0xf0
[  156.070619][ T7216]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.070647][ T7216]  gfs2_sys_fs_add+0xef/0x200
[  156.070677][ T7216]  gfs2_fill_super+0x896/0x1210
[  156.070712][ T7216]  ? sb_set_blocksize+0x8c/0x150
[  156.070735][ T7216]  ? setup_bdev_super+0x19d/0x330
[  156.070757][ T7216]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.070791][ T7216]  get_tree_bdev_flags+0x1c0/0x290
[  156.070817][ T7216]  gfs2_get_tree+0x26/0xd0
[  156.070848][ T7216]  vfs_get_tree+0x30/0x120
[  156.070866][ T7216]  path_mount+0x5a9/0x1350
[  156.070899][ T7216]  ? putname+0x78/0xe0
[  156.070928][ T7216]  __x64_sys_mount+0x1a3/0x1e0
[  156.070960][ T7216]  do_syscall_64+0xa4/0xf80
[  156.070992][ T7216]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.071014][ T7216] RIP: 0033:0x7f808a39c14a
[  156.071089][ T7216] 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
[  156.071111][ T7216] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.071131][ T7216] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  156.071145][ T7216] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  156.071160][ T7216] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  156.071173][ T7216] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.071187][ T7216] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  156.071203][ T7216]  </TASK>
[  156.071211][ T7216] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.078543][ T7213] CPU: 1 UID: 0 PID: 7213 Comm: syz.3.88 Not tainted syzkaller #0 PREEMPT(full) 
[  156.078569][ T7213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.078580][ T7213] Call Trace:
[  156.078585][ T7213]  <TASK>
[  156.078592][ T7213]  dump_stack_lvl+0x97/0xe0
[  156.078618][ T7213]  sysfs_warn_dup.cold+0x1c/0x28
[  156.078650][ T7213]  sysfs_create_dir_ns+0x129/0x140
[  156.078677][ T7213]  kobject_add_internal+0x104/0x310
[  156.078702][ T7213]  kobject_init_and_add+0xb2/0xf0
[  156.078727][ T7213]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.078754][ T7213]  gfs2_sys_fs_add+0xef/0x200
[  156.078783][ T7213]  gfs2_fill_super+0x896/0x1210
[  156.078816][ T7213]  ? sb_set_blocksize+0x8c/0x150
[  156.078840][ T7213]  ? setup_bdev_super+0x19d/0x330
[  156.078861][ T7213]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.078894][ T7213]  get_tree_bdev_flags+0x1c0/0x290
[  156.078920][ T7213]  gfs2_get_tree+0x26/0xd0
[  156.078950][ T7213]  vfs_get_tree+0x30/0x120
[  156.078969][ T7213]  path_mount+0x5a9/0x1350
[  156.079000][ T7213]  ? putname+0x78/0xe0
[  156.079029][ T7213]  __x64_sys_mount+0x1a3/0x1e0
[  156.079060][ T7213]  do_syscall_64+0xa4/0xf80
[  156.079091][ T7213]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.079112][ T7213] RIP: 0033:0x7f1c4f59c14a
[  156.079128][ T7213] 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
[  156.079148][ T7213] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.079167][ T7213] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  156.079181][ T7213] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  156.079195][ T7213] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  156.079208][ T7213] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.079221][ T7213] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  156.079237][ T7213]  </TASK>
[  156.079246][ T7213] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.097419][ T7208] CPU: 0 UID: 0 PID: 7208 Comm: syz.1.86 Not tainted syzkaller #0 PREEMPT(full) 
[  156.097446][ T7208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.097459][ T7208] Call Trace:
[  156.097464][ T7208]  <TASK>
[  156.097471][ T7208]  dump_stack_lvl+0x97/0xe0
[  156.097497][ T7208]  sysfs_warn_dup.cold+0x1c/0x28
[  156.097530][ T7208]  sysfs_create_dir_ns+0x129/0x140
[  156.097557][ T7208]  kobject_add_internal+0x104/0x310
[  156.097593][ T7208]  kobject_init_and_add+0xb2/0xf0
[  156.097619][ T7208]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.097654][ T7208]  gfs2_sys_fs_add+0xef/0x200
[  156.097683][ T7208]  gfs2_fill_super+0x896/0x1210
[  156.097717][ T7208]  ? sb_set_blocksize+0x8c/0x150
[  156.097741][ T7208]  ? setup_bdev_super+0x19d/0x330
[  156.097763][ T7208]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.097796][ T7208]  get_tree_bdev_flags+0x1c0/0x290
[  156.097823][ T7208]  gfs2_get_tree+0x26/0xd0
[  156.097853][ T7208]  vfs_get_tree+0x30/0x120
[  156.097872][ T7208]  path_mount+0x5a9/0x1350
[  156.097904][ T7208]  ? putname+0x78/0xe0
[  156.097934][ T7208]  __x64_sys_mount+0x1a3/0x1e0
[  156.097966][ T7208]  do_syscall_64+0xa4/0xf80
[  156.097997][ T7208]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.098019][ T7208] RIP: 0033:0x7fa046f9c14a
[  156.098035][ T7208] 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
[  156.098055][ T7208] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.098074][ T7208] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  156.098094][ T7208] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  156.098108][ T7208] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  156.098121][ T7208] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.098134][ T7208] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  156.098151][ T7208]  </TASK>
[  156.098161][ T7208] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.110641][ T7213] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.161367][ T7215] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  156.162996][ T7216] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.212435][   T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  156.215422][ T7208] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.230728][   T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  156.288585][ T7217] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.294065][ T7209] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  156.301650][ T7217] CPU: 1 UID: 0 PID: 7217 Comm: syz.0.85 Not tainted syzkaller #0 PREEMPT(full) 
[  156.301676][ T7217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.301693][ T7217] Call Trace:
[  156.301699][ T7217]  <TASK>
[  156.301705][ T7217]  dump_stack_lvl+0x97/0xe0
[  156.301732][ T7217]  sysfs_warn_dup.cold+0x1c/0x28
[  156.301766][ T7217]  sysfs_create_dir_ns+0x129/0x140
[  156.301795][ T7217]  kobject_add_internal+0x104/0x310
[  156.301820][ T7217]  kobject_init_and_add+0xb2/0xf0
[  156.301845][ T7217]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.301872][ T7217]  gfs2_sys_fs_add+0xef/0x200
[  156.301903][ T7217]  gfs2_fill_super+0x896/0x1210
[  156.301937][ T7217]  ? sb_set_blocksize+0x8c/0x150
[  156.301960][ T7217]  ? setup_bdev_super+0x19d/0x330
[  156.301982][ T7217]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.302016][ T7217]  get_tree_bdev_flags+0x1c0/0x290
[  156.302042][ T7217]  gfs2_get_tree+0x26/0xd0
[  156.302073][ T7217]  vfs_get_tree+0x30/0x120
[  156.302092][ T7217]  path_mount+0x5a9/0x1350
[  156.302124][ T7217]  ? putname+0x78/0xe0
[  156.302154][ T7217]  __x64_sys_mount+0x1a3/0x1e0
[  156.302186][ T7217]  do_syscall_64+0xa4/0xf80
[  156.302218][ T7217]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.302240][ T7217] RIP: 0033:0x7f41b599c14a
[  156.302255][ T7217] 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
[  156.302276][ T7217] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.302295][ T7217] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  156.302309][ T7217] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  156.302323][ T7217] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  156.302336][ T7217] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.302349][ T7217] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  156.302365][ T7217]  </TASK>
[  156.303337][ T7217] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.321085][   T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 90ms
[  156.371738][ T7209] CPU: 1 UID: 0 PID: 7209 Comm: syz.6.91 Not tainted syzkaller #0 PREEMPT(full) 
[  156.371765][ T7209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  156.371777][ T7209] Call Trace:
[  156.371783][ T7209]  <TASK>
[  156.371789][ T7209]  dump_stack_lvl+0x97/0xe0
[  156.371817][ T7209]  sysfs_warn_dup.cold+0x1c/0x28
[  156.371849][ T7209]  sysfs_create_dir_ns+0x129/0x140
[  156.371876][ T7209]  kobject_add_internal+0x104/0x310
[  156.371901][ T7209]  kobject_init_and_add+0xb2/0xf0
[  156.371926][ T7209]  ? alloc_workqueue_noprof+0xe0/0xb60
[  156.371953][ T7209]  gfs2_sys_fs_add+0xef/0x200
[  156.371983][ T7209]  gfs2_fill_super+0x896/0x1210
[  156.372018][ T7209]  ? sb_set_blocksize+0x8c/0x150
[  156.372042][ T7209]  ? setup_bdev_super+0x19d/0x330
[  156.372064][ T7209]  ? __pfx_gfs2_fill_super+0x10/0x10
[  156.372097][ T7209]  get_tree_bdev_flags+0x1c0/0x290
[  156.372124][ T7209]  gfs2_get_tree+0x26/0xd0
[  156.372155][ T7209]  vfs_get_tree+0x30/0x120
[  156.372174][ T7209]  path_mount+0x5a9/0x1350
[  156.372206][ T7209]  ? putname+0x78/0xe0
[  156.372236][ T7209]  __x64_sys_mount+0x1a3/0x1e0
[  156.372267][ T7209]  do_syscall_64+0xa4/0xf80
[  156.372299][ T7209]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  156.372320][ T7209] RIP: 0033:0x7fc30eb9c14a
[  156.372336][ T7209] 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
[  156.372357][ T7209] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  156.372379][ T7209] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  156.372393][ T7209] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  156.372407][ T7209] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  156.372420][ T7209] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  156.372433][ T7209] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  156.372449][ T7209]  </TASK>
[  156.372487][ T7209] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  156.376913][   T10] gfs2: fsid=syz:syz.0: jid=0: Done
[  156.427597][ T7209] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.431028][ T7217] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  156.938501][ T7241] loop4: detected capacity change from 0 to 32768
[  156.971749][ T7215] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  156.996422][ T7243] loop2: detected capacity change from 0 to 32768
[  157.055571][ T7239] loop1: detected capacity change from 0 to 32768
[  157.140420][ T7241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.426960][ T7241] CPU: 0 UID: 0 PID: 7241 Comm: syz.4.95 Not tainted syzkaller #0 PREEMPT(full) 
[  157.426987][ T7241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.426998][ T7241] Call Trace:
[  157.427003][ T7241]  <TASK>
[  157.427009][ T7241]  dump_stack_lvl+0x97/0xe0
[  157.427034][ T7241]  sysfs_warn_dup.cold+0x1c/0x28
[  157.427063][ T7241]  sysfs_create_dir_ns+0x129/0x140
[  157.427086][ T7241]  kobject_add_internal+0x104/0x310
[  157.427109][ T7241]  kobject_init_and_add+0xb2/0xf0
[  157.427131][ T7241]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.427157][ T7241]  gfs2_sys_fs_add+0xef/0x200
[  157.427184][ T7241]  gfs2_fill_super+0x896/0x1210
[  157.427217][ T7241]  ? sb_set_blocksize+0x8c/0x150
[  157.427238][ T7241]  ? setup_bdev_super+0x19d/0x330
[  157.427257][ T7241]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.427290][ T7241]  get_tree_bdev_flags+0x1c0/0x290
[  157.427316][ T7241]  gfs2_get_tree+0x26/0xd0
[  157.427346][ T7241]  vfs_get_tree+0x30/0x120
[  157.427373][ T7241]  path_mount+0x5a9/0x1350
[  157.427404][ T7241]  ? putname+0x78/0xe0
[  157.427437][ T7241]  __x64_sys_mount+0x1a3/0x1e0
[  157.427467][ T7241]  do_syscall_64+0xa4/0xf80
[  157.427498][ T7241]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.427521][ T7241] RIP: 0033:0x7f9543b9c14a
[  157.427537][ T7241] 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
[  157.427558][ T7241] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.427578][ T7241] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  157.427592][ T7241] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  157.427604][ T7241] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  157.427616][ T7241] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.427629][ T7241] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  157.427645][ T7241]  </TASK>
[  157.427681][ T7241] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.427860][ T7247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.451850][ T7215] gfs2: fsid=syz:syz.0: found 1 quota changes
[  157.459431][ T7245] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.483121][ T7247] CPU: 0 UID: 0 PID: 7247 Comm: syz.3.94 Not tainted syzkaller #0 PREEMPT(full) 
[  157.483149][ T7247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.483162][ T7247] Call Trace:
[  157.483167][ T7247]  <TASK>
[  157.483174][ T7247]  dump_stack_lvl+0x97/0xe0
[  157.483198][ T7247]  sysfs_warn_dup.cold+0x1c/0x28
[  157.483228][ T7247]  sysfs_create_dir_ns+0x129/0x140
[  157.483255][ T7247]  kobject_add_internal+0x104/0x310
[  157.483280][ T7247]  kobject_init_and_add+0xb2/0xf0
[  157.483305][ T7247]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.483332][ T7247]  gfs2_sys_fs_add+0xef/0x200
[  157.483362][ T7247]  gfs2_fill_super+0x896/0x1210
[  157.483397][ T7247]  ? sb_set_blocksize+0x8c/0x150
[  157.483420][ T7247]  ? setup_bdev_super+0x19d/0x330
[  157.483450][ T7247]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.483484][ T7247]  get_tree_bdev_flags+0x1c0/0x290
[  157.483510][ T7247]  gfs2_get_tree+0x26/0xd0
[  157.483541][ T7247]  vfs_get_tree+0x30/0x120
[  157.483560][ T7247]  path_mount+0x5a9/0x1350
[  157.483591][ T7247]  ? putname+0x78/0xe0
[  157.483621][ T7247]  __x64_sys_mount+0x1a3/0x1e0
[  157.483654][ T7247]  do_syscall_64+0xa4/0xf80
[  157.483685][ T7247]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.483704][ T7247] RIP: 0033:0x7f1c4f59c14a
[  157.483719][ T7247] 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
[  157.483739][ T7247] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.483759][ T7247] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  157.483773][ T7247] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  157.483787][ T7247] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  157.483801][ T7247] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.483814][ T7247] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  157.483831][ T7247]  </TASK>
[  157.483841][ T7247] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.491722][ T7245] CPU: 1 UID: 0 PID: 7245 Comm: syz.6.96 Not tainted syzkaller #0 PREEMPT(full) 
[  157.491748][ T7245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.491760][ T7245] Call Trace:
[  157.491766][ T7245]  <TASK>
[  157.491773][ T7245]  dump_stack_lvl+0x97/0xe0
[  157.491799][ T7245]  sysfs_warn_dup.cold+0x1c/0x28
[  157.491831][ T7245]  sysfs_create_dir_ns+0x129/0x140
[  157.491858][ T7245]  kobject_add_internal+0x104/0x310
[  157.491883][ T7245]  kobject_init_and_add+0xb2/0xf0
[  157.491907][ T7245]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.491934][ T7245]  gfs2_sys_fs_add+0xef/0x200
[  157.491964][ T7245]  gfs2_fill_super+0x896/0x1210
[  157.491997][ T7245]  ? sb_set_blocksize+0x8c/0x150
[  157.492021][ T7245]  ? setup_bdev_super+0x19d/0x330
[  157.492042][ T7245]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.492075][ T7245]  get_tree_bdev_flags+0x1c0/0x290
[  157.492101][ T7245]  gfs2_get_tree+0x26/0xd0
[  157.492131][ T7245]  vfs_get_tree+0x30/0x120
[  157.492150][ T7245]  path_mount+0x5a9/0x1350
[  157.492187][ T7245]  ? putname+0x78/0xe0
[  157.492217][ T7245]  __x64_sys_mount+0x1a3/0x1e0
[  157.492248][ T7245]  do_syscall_64+0xa4/0xf80
[  157.492279][ T7245]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.492301][ T7245] RIP: 0033:0x7fc30eb9c14a
[  157.492316][ T7245] 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
[  157.492337][ T7245] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.492356][ T7245] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  157.492370][ T7245] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  157.492383][ T7245] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  157.492396][ T7245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.492409][ T7245] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  157.492425][ T7245]  </TASK>
[  157.492435][ T7245] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.493483][ T7241] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  157.498118][ T7245] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  157.525723][ T7247] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  157.602025][ T7243] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.603184][ T6346] syz-executor: attempt to access beyond end of device
[  157.603184][ T6346] loop5: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  157.610697][ T7243] CPU: 1 UID: 0 PID: 7243 Comm: syz.2.92 Not tainted syzkaller #0 PREEMPT(full) 
[  157.610723][ T7243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.610735][ T7243] Call Trace:
[  157.610740][ T7243]  <TASK>
[  157.610747][ T7243]  dump_stack_lvl+0x97/0xe0
[  157.610772][ T7243]  sysfs_warn_dup.cold+0x1c/0x28
[  157.610805][ T7243]  sysfs_create_dir_ns+0x129/0x140
[  157.610832][ T7243]  kobject_add_internal+0x104/0x310
[  157.610857][ T7243]  kobject_init_and_add+0xb2/0xf0
[  157.610883][ T7243]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.610910][ T7243]  gfs2_sys_fs_add+0xef/0x200
[  157.610939][ T7243]  gfs2_fill_super+0x896/0x1210
[  157.610974][ T7243]  ? sb_set_blocksize+0x8c/0x150
[  157.610998][ T7243]  ? setup_bdev_super+0x19d/0x330
[  157.611019][ T7243]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.611053][ T7243]  get_tree_bdev_flags+0x1c0/0x290
[  157.611079][ T7243]  gfs2_get_tree+0x26/0xd0
[  157.611110][ T7243]  vfs_get_tree+0x30/0x120
[  157.611129][ T7243]  path_mount+0x5a9/0x1350
[  157.611160][ T7243]  ? putname+0x78/0xe0
[  157.611191][ T7243]  __x64_sys_mount+0x1a3/0x1e0
[  157.611223][ T7243]  do_syscall_64+0xa4/0xf80
[  157.611255][ T7243]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.611277][ T7243] RIP: 0033:0x7f808a39c14a
[  157.611292][ T7243] 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
[  157.611313][ T7243] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.611332][ T7243] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  157.611346][ T7243] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  157.611365][ T7243] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  157.611379][ T7243] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.611392][ T7243] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  157.611408][ T7243]  </TASK>
[  157.611417][ T7243] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.659515][ T7239] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.666404][ T6346] Buffer I/O error on dev loop5, logical block 8589934885, lost async page write
[  157.676738][ T7239] CPU: 0 UID: 0 PID: 7239 Comm: syz.1.93 Not tainted syzkaller #0 PREEMPT(full) 
[  157.676764][ T7239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.676776][ T7239] Call Trace:
[  157.676782][ T7239]  <TASK>
[  157.676788][ T7239]  dump_stack_lvl+0x97/0xe0
[  157.676815][ T7239]  sysfs_warn_dup.cold+0x1c/0x28
[  157.676849][ T7239]  sysfs_create_dir_ns+0x129/0x140
[  157.676876][ T7239]  kobject_add_internal+0x104/0x310
[  157.676901][ T7239]  kobject_init_and_add+0xb2/0xf0
[  157.676927][ T7239]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.676954][ T7239]  gfs2_sys_fs_add+0xef/0x200
[  157.676984][ T7239]  gfs2_fill_super+0x896/0x1210
[  157.677019][ T7239]  ? sb_set_blocksize+0x8c/0x150
[  157.677043][ T7239]  ? setup_bdev_super+0x19d/0x330
[  157.677065][ T7239]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.677099][ T7239]  get_tree_bdev_flags+0x1c0/0x290
[  157.677125][ T7239]  gfs2_get_tree+0x26/0xd0
[  157.677156][ T7239]  vfs_get_tree+0x30/0x120
[  157.677176][ T7239]  path_mount+0x5a9/0x1350
[  157.677214][ T7239]  ? putname+0x78/0xe0
[  157.677244][ T7239]  __x64_sys_mount+0x1a3/0x1e0
[  157.677276][ T7239]  do_syscall_64+0xa4/0xf80
[  157.677308][ T7239]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.677330][ T7239] RIP: 0033:0x7fa046f9c14a
[  157.677347][ T7239] 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
[  157.677367][ T7239] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.677387][ T7239] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  157.677401][ T7239] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  157.677416][ T7239] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  157.677430][ T7239] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.677443][ T7239] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  157.677460][ T7239]  </TASK>
[  157.677470][ T7239] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.679410][ T6346] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  157.683324][ T7251] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  157.686735][ T6346] CPU: 1 UID: 0 PID: 6346 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  157.686760][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.686772][ T6346] Call Trace:
[  157.686778][ T6346]  <TASK>
[  157.686784][ T6346]  dump_stack_lvl+0x97/0xe0
[  157.686812][ T6346]  gfs2_withdraw.cold+0xa/0x77
[  157.686833][ T6346]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  157.686855][ T6346]  gfs2_ail1_flush+0x497/0x7e0
[  157.686890][ T6346]  gfs2_ail1_start+0x4f/0x80
[  157.686929][ T6346]  gfs2_log_flush+0xf95/0x1170
[  157.686950][ T6346]  gfs2_kill_sb+0x3e/0x1e0
[  157.686981][ T6346]  deactivate_locked_super+0x4f/0x120
[  157.687006][ T6346]  deactivate_super+0xa4/0xc0
[  157.687029][ T6346]  cleanup_mnt+0x145/0x1f0
[  157.687054][ T6346]  task_work_run+0x95/0xf0
[  157.687086][ T6346]  exit_to_user_mode_loop+0xcf/0x440
[  157.687114][ T6346]  do_syscall_64+0x2b8/0xf80
[  157.687146][ T6346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.687168][ T6346] RIP: 0033:0x7f6d7c39c117
[  157.687184][ T6346] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  157.687204][ T6346] RSP: 002b:00007ffe3f7e2aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  157.687223][ T6346] RAX: 0000000000000000 RBX: 00007f6d7c40471f RCX: 00007f6d7c39c117
[  157.687237][ T6346] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f7e2b60
[  157.687248][ T6346] RBP: 00007ffe3f7e2b60 R08: 00007ffe3f7e3b60 R09: 00000000ffffffff
[  157.687260][ T6346] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f7e3bf0
[  157.687267][ T6346] R13: 00007f6d7c40471f R14: 0000000000026732 R15: 00007ffe3f7e3c30
[  157.687278][ T6346]  </TASK>
[  157.687283][ T6346] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  157.692940][ T7251] CPU: 0 UID: 0 PID: 7251 Comm: syz.0.97 Not tainted syzkaller #0 PREEMPT(full) 
[  157.692966][ T7251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  157.692978][ T7251] Call Trace:
[  157.692983][ T7251]  <TASK>
[  157.692989][ T7251]  dump_stack_lvl+0x97/0xe0
[  157.693015][ T7251]  sysfs_warn_dup.cold+0x1c/0x28
[  157.693047][ T7251]  sysfs_create_dir_ns+0x129/0x140
[  157.693074][ T7251]  kobject_add_internal+0x104/0x310
[  157.693098][ T7251]  kobject_init_and_add+0xb2/0xf0
[  157.693124][ T7251]  ? alloc_workqueue_noprof+0xe0/0xb60
[  157.693151][ T7251]  gfs2_sys_fs_add+0xef/0x200
[  157.693181][ T7251]  gfs2_fill_super+0x896/0x1210
[  157.693222][ T7251]  ? sb_set_blocksize+0x8c/0x150
[  157.693246][ T7251]  ? setup_bdev_super+0x19d/0x330
[  157.693268][ T7251]  ? __pfx_gfs2_fill_super+0x10/0x10
[  157.693302][ T7251]  get_tree_bdev_flags+0x1c0/0x290
[  157.693328][ T7251]  gfs2_get_tree+0x26/0xd0
[  157.693359][ T7251]  vfs_get_tree+0x30/0x120
[  157.693378][ T7251]  path_mount+0x5a9/0x1350
[  157.693408][ T7251]  ? putname+0x78/0xe0
[  157.693437][ T7251]  __x64_sys_mount+0x1a3/0x1e0
[  157.693469][ T7251]  do_syscall_64+0xa4/0xf80
[  157.693500][ T7251]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  157.693521][ T7251] RIP: 0033:0x7f41b599c14a
[  157.693536][ T7251] 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
[  157.693556][ T7251] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  157.693575][ T7251] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  157.693589][ T7251] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  157.693602][ T7251] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  157.693615][ T7251] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  157.693628][ T7251] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  157.693645][ T7251]  </TASK>
[  157.693654][ T7251] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  157.697670][ T7243] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  157.703371][ T7239] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  157.751753][ T7251] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  162.911817][ T6346] gfs2: fsid=syz:syz.0: warning: assertion "gfs2_log_is_empty(sdp)" failed - function = gfs2_make_fs_ro, file = fs/gfs2/super.c, line = 566
[  162.926157][ T6346] CPU: 0 UID: 0 PID: 6346 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  162.926173][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  162.926181][ T6346] Call Trace:
[  162.926184][ T6346]  <TASK>
[  162.926189][ T6346]  dump_stack_lvl+0x97/0xe0
[  162.926207][ T6346]  gfs2_assert_warn_i.cold+0x38/0x94
[  162.926220][ T6346]  gfs2_make_fs_ro+0x13d/0x220
[  162.926233][ T6346]  ? __pfx_autoremove_wake_function+0x10/0x10
[  162.926253][ T6346]  gfs2_put_super+0xb4/0x2d0
[  162.926265][ T6346]  ? __pfx_gfs2_put_super+0x10/0x10
[  162.926277][ T6346]  generic_shutdown_super+0x9c/0x160
[  162.926290][ T6346]  kill_block_super+0x1d/0x50
[  162.926301][ T6346]  gfs2_kill_sb+0x1b6/0x1e0
[  162.926319][ T6346]  deactivate_locked_super+0x4f/0x120
[  162.926333][ T6346]  deactivate_super+0xa4/0xc0
[  162.926345][ T6346]  cleanup_mnt+0x145/0x1f0
[  162.926359][ T6346]  task_work_run+0x95/0xf0
[  162.926377][ T6346]  exit_to_user_mode_loop+0xcf/0x440
[  162.926392][ T6346]  do_syscall_64+0x2b8/0xf80
[  162.926412][ T6346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  162.926425][ T6346] RIP: 0033:0x7f6d7c39c117
[  162.926434][ T6346] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  162.926446][ T6346] RSP: 002b:00007ffe3f7e2aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  162.926458][ T6346] RAX: 0000000000000000 RBX: 00007f6d7c40471f RCX: 00007f6d7c39c117
[  162.926465][ T6346] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f7e2b60
[  162.926473][ T6346] RBP: 00007ffe3f7e2b60 R08: 00007ffe3f7e3b60 R09: 00000000ffffffff
[  162.926480][ T6346] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f7e3bf0
[  162.926487][ T6346] R13: 00007f6d7c40471f R14: 0000000000026732 R15: 00007ffe3f7e3c30
[  162.926496][ T6346]  </TASK>
[  164.032755][ T7051] gfs2: fsid=syz:syz.0: file system withdrawn
[  164.116298][ T7269] set_capacity_and_notify: 3 callbacks suppressed
[  164.116308][ T7269] loop5: detected capacity change from 0 to 32768
[  164.137211][ T7269] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  164.146431][ T7269] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  164.154553][ T7269] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  164.168172][   T93] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  164.175272][   T93] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  164.186009][   T93] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  164.194541][   T93] gfs2: fsid=syz:syz.0: jid=0: Done
[  164.199787][ T7269] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  164.226829][ T7269] gfs2: fsid=syz:syz.0: found 1 quota changes
[  164.235405][ T6346] syz-executor: attempt to access beyond end of device
[  164.235405][ T6346] loop5: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  164.250179][ T6346] Buffer I/O error on dev loop5, logical block 8589934885, lost async page write
[  164.259368][ T6346] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  164.272596][ T6346] CPU: 1 UID: 0 PID: 6346 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  164.272614][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  164.272624][ T6346] Call Trace:
[  164.272630][ T6346]  <TASK>
[  164.272636][ T6346]  dump_stack_lvl+0x97/0xe0
[  164.272661][ T6346]  gfs2_withdraw.cold+0xa/0x77
[  164.272680][ T6346]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  164.272694][ T6346]  gfs2_ail1_flush+0x497/0x7e0
[  164.272715][ T6346]  gfs2_ail1_start+0x4f/0x80
[  164.272738][ T6346]  gfs2_log_flush+0xf95/0x1170
[  164.272759][ T6346]  gfs2_kill_sb+0x3e/0x1e0
[  164.272787][ T6346]  deactivate_locked_super+0x4f/0x120
[  164.272801][ T6346]  deactivate_super+0xa4/0xc0
[  164.272814][ T6346]  cleanup_mnt+0x145/0x1f0
[  164.272829][ T6346]  task_work_run+0x95/0xf0
[  164.272860][ T6346]  exit_to_user_mode_loop+0xcf/0x440
[  164.272893][ T6346]  do_syscall_64+0x2b8/0xf80
[  164.272912][ T6346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  164.272927][ T6346] RIP: 0033:0x7f6d7c39c117
[  164.272943][ T6346] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  164.272965][ T6346] RSP: 002b:00007ffe3f7e2aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  164.272986][ T6346] RAX: 0000000000000000 RBX: 00007f6d7c40471f RCX: 00007f6d7c39c117
[  164.272998][ T6346] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f7e2b60
[  164.273005][ T6346] RBP: 00007ffe3f7e2b60 R08: 00007ffe3f7e3b60 R09: 00000000ffffffff
[  164.273012][ T6346] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f7e3bf0
[  164.273024][ T6346] R13: 00007f6d7c40471f R14: 00000000000280c5 R15: 00007ffe3f7e3c30
[  164.273042][ T6346]  </TASK>
[  164.273048][ T6346] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  169.472758][   T93] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:08:00 executed programs: 96
[  171.866819][ T7279] loop2: detected capacity change from 0 to 32768
[  171.884712][ T7282] loop1: detected capacity change from 0 to 32768
[  171.895327][ T7283] loop3: detected capacity change from 0 to 32768
[  171.900061][ T7288] loop5: detected capacity change from 0 to 32768
[  171.927893][ T7287] loop6: detected capacity change from 0 to 32768
[  171.935096][ T7282] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  171.938072][ T7280] loop4: detected capacity change from 0 to 32768
[  171.943605][ T7282] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  171.959739][ T7279] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  171.982969][ T7283] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  171.984772][ T7289] loop0: detected capacity change from 0 to 32768
[  172.005046][ T7279] CPU: 0 UID: 0 PID: 7279 Comm: syz.2.101 Not tainted syzkaller #0 PREEMPT(full) 
[  172.005073][ T7279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.005084][ T7279] Call Trace:
[  172.005089][ T7279]  <TASK>
[  172.005095][ T7279]  dump_stack_lvl+0x97/0xe0
[  172.005121][ T7279]  sysfs_warn_dup.cold+0x1c/0x28
[  172.005154][ T7279]  sysfs_create_dir_ns+0x129/0x140
[  172.005182][ T7279]  kobject_add_internal+0x104/0x310
[  172.005207][ T7279]  kobject_init_and_add+0xb2/0xf0
[  172.005233][ T7279]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.005261][ T7279]  gfs2_sys_fs_add+0xef/0x200
[  172.005291][ T7279]  gfs2_fill_super+0x896/0x1210
[  172.005327][ T7279]  ? sb_set_blocksize+0x8c/0x150
[  172.005352][ T7279]  ? setup_bdev_super+0x19d/0x330
[  172.005374][ T7279]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.005408][ T7279]  get_tree_bdev_flags+0x1c0/0x290
[  172.005433][ T7279]  gfs2_get_tree+0x26/0xd0
[  172.005463][ T7279]  vfs_get_tree+0x30/0x120
[  172.005482][ T7279]  path_mount+0x5a9/0x1350
[  172.005514][ T7279]  ? putname+0x78/0xe0
[  172.005543][ T7279]  __x64_sys_mount+0x1a3/0x1e0
[  172.005575][ T7279]  do_syscall_64+0xa4/0xf80
[  172.005606][ T7279]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.005628][ T7279] RIP: 0033:0x7f808a39c14a
[  172.005644][ T7279] 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
[  172.005664][ T7279] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.005683][ T7279] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  172.005697][ T7279] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  172.005710][ T7279] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  172.005724][ T7279] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.005736][ T7279] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  172.005752][ T7279]  </TASK>
[  172.005792][ T7279] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.010528][ T7280] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  172.015177][ T7283] CPU: 0 UID: 0 PID: 7283 Comm: syz.3.102 Not tainted syzkaller #0 PREEMPT(full) 
[  172.015204][ T7283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.015216][ T7283] Call Trace:
[  172.015221][ T7283]  <TASK>
[  172.015228][ T7283]  dump_stack_lvl+0x97/0xe0
[  172.015254][ T7283]  sysfs_warn_dup.cold+0x1c/0x28
[  172.015286][ T7283]  sysfs_create_dir_ns+0x129/0x140
[  172.015313][ T7283]  kobject_add_internal+0x104/0x310
[  172.015337][ T7283]  kobject_init_and_add+0xb2/0xf0
[  172.015361][ T7283]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.015389][ T7283]  gfs2_sys_fs_add+0xef/0x200
[  172.015418][ T7283]  gfs2_fill_super+0x896/0x1210
[  172.015452][ T7283]  ? sb_set_blocksize+0x8c/0x150
[  172.015476][ T7283]  ? setup_bdev_super+0x19d/0x330
[  172.015497][ T7283]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.015535][ T7283]  get_tree_bdev_flags+0x1c0/0x290
[  172.015561][ T7283]  gfs2_get_tree+0x26/0xd0
[  172.015592][ T7283]  vfs_get_tree+0x30/0x120
[  172.015611][ T7283]  path_mount+0x5a9/0x1350
[  172.015642][ T7283]  ? putname+0x78/0xe0
[  172.015672][ T7283]  __x64_sys_mount+0x1a3/0x1e0
[  172.015702][ T7283]  do_syscall_64+0xa4/0xf80
[  172.015734][ T7283]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.015755][ T7283] RIP: 0033:0x7f1c4f59c14a
[  172.015770][ T7283] 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
[  172.015790][ T7283] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.015809][ T7283] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  172.015823][ T7283] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  172.015837][ T7283] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  172.015850][ T7283] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.015863][ T7283] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  172.015879][ T7283]  </TASK>
[  172.015888][ T7283] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.025331][ T7280] CPU: 1 UID: 0 PID: 7280 Comm: syz.4.103 Not tainted syzkaller #0 PREEMPT(full) 
[  172.025357][ T7280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.025369][ T7280] Call Trace:
[  172.025375][ T7280]  <TASK>
[  172.025381][ T7280]  dump_stack_lvl+0x97/0xe0
[  172.025406][ T7280]  sysfs_warn_dup.cold+0x1c/0x28
[  172.025438][ T7280]  sysfs_create_dir_ns+0x129/0x140
[  172.025464][ T7280]  kobject_add_internal+0x104/0x310
[  172.025487][ T7280]  kobject_init_and_add+0xb2/0xf0
[  172.025512][ T7280]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.025540][ T7280]  gfs2_sys_fs_add+0xef/0x200
[  172.025569][ T7280]  gfs2_fill_super+0x896/0x1210
[  172.025604][ T7280]  ? sb_set_blocksize+0x8c/0x150
[  172.025627][ T7280]  ? setup_bdev_super+0x19d/0x330
[  172.025648][ T7280]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.025682][ T7280]  get_tree_bdev_flags+0x1c0/0x290
[  172.025709][ T7280]  gfs2_get_tree+0x26/0xd0
[  172.025740][ T7280]  vfs_get_tree+0x30/0x120
[  172.025759][ T7280]  path_mount+0x5a9/0x1350
[  172.025791][ T7280]  ? putname+0x78/0xe0
[  172.025821][ T7280]  __x64_sys_mount+0x1a3/0x1e0
[  172.025853][ T7280]  do_syscall_64+0xa4/0xf80
[  172.025885][ T7280]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.025906][ T7280] RIP: 0033:0x7f9543b9c14a
[  172.025921][ T7280] 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
[  172.025941][ T7280] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.025960][ T7280] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  172.025974][ T7280] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  172.025988][ T7280] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  172.026001][ T7280] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.026014][ T7280] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  172.026030][ T7280]  </TASK>
[  172.026039][ T7280] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.053870][ T7282] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  172.081905][ T7279] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  172.087632][ T7280] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  172.092585][ T7283] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  172.152014][ T7192] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  172.192174][ T7287] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  172.197041][ T7192] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  172.241710][ T7287] CPU: 1 UID: 0 PID: 7287 Comm: syz.6.105 Not tainted syzkaller #0 PREEMPT(full) 
[  172.241738][ T7287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.241751][ T7287] Call Trace:
[  172.241757][ T7287]  <TASK>
[  172.241763][ T7287]  dump_stack_lvl+0x97/0xe0
[  172.241790][ T7287]  sysfs_warn_dup.cold+0x1c/0x28
[  172.241822][ T7287]  sysfs_create_dir_ns+0x129/0x140
[  172.241849][ T7287]  kobject_add_internal+0x104/0x310
[  172.241874][ T7287]  kobject_init_and_add+0xb2/0xf0
[  172.241899][ T7287]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.241927][ T7287]  gfs2_sys_fs_add+0xef/0x200
[  172.241958][ T7287]  gfs2_fill_super+0x896/0x1210
[  172.241994][ T7287]  ? sb_set_blocksize+0x8c/0x150
[  172.242017][ T7287]  ? setup_bdev_super+0x19d/0x330
[  172.242039][ T7287]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.242073][ T7287]  get_tree_bdev_flags+0x1c0/0x290
[  172.242099][ T7287]  gfs2_get_tree+0x26/0xd0
[  172.242136][ T7287]  vfs_get_tree+0x30/0x120
[  172.242155][ T7287]  path_mount+0x5a9/0x1350
[  172.242187][ T7287]  ? putname+0x78/0xe0
[  172.242217][ T7287]  __x64_sys_mount+0x1a3/0x1e0
[  172.242249][ T7287]  do_syscall_64+0xa4/0xf80
[  172.242281][ T7287]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.242303][ T7287] RIP: 0033:0x7fc30eb9c14a
[  172.242318][ T7287] 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
[  172.242339][ T7287] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.242359][ T7287] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  172.242373][ T7287] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  172.242387][ T7287] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  172.242401][ T7287] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.242414][ T7287] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  172.242430][ T7287]  </TASK>
[  172.242440][ T7287] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.265904][ T7192] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms
[  172.267427][ T7287] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  172.272890][ T7192] gfs2: fsid=syz:syz.0: jid=0: Done
[  172.292725][ T7288] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  172.331766][ T7282] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  172.335846][ T7288] CPU: 1 UID: 0 PID: 7288 Comm: syz.5.104 Not tainted syzkaller #0 PREEMPT(full) 
[  172.335873][ T7288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.335886][ T7288] Call Trace:
[  172.335891][ T7288]  <TASK>
[  172.335897][ T7288]  dump_stack_lvl+0x97/0xe0
[  172.335927][ T7288]  sysfs_warn_dup.cold+0x1c/0x28
[  172.335959][ T7288]  sysfs_create_dir_ns+0x129/0x140
[  172.335986][ T7288]  kobject_add_internal+0x104/0x310
[  172.336012][ T7288]  kobject_init_and_add+0xb2/0xf0
[  172.336037][ T7288]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.336065][ T7288]  gfs2_sys_fs_add+0xef/0x200
[  172.336095][ T7288]  gfs2_fill_super+0x896/0x1210
[  172.336136][ T7288]  ? sb_set_blocksize+0x8c/0x150
[  172.336159][ T7288]  ? setup_bdev_super+0x19d/0x330
[  172.336181][ T7288]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.336215][ T7288]  get_tree_bdev_flags+0x1c0/0x290
[  172.336241][ T7288]  gfs2_get_tree+0x26/0xd0
[  172.336272][ T7288]  vfs_get_tree+0x30/0x120
[  172.336291][ T7288]  path_mount+0x5a9/0x1350
[  172.336322][ T7288]  ? putname+0x78/0xe0
[  172.336351][ T7288]  __x64_sys_mount+0x1a3/0x1e0
[  172.336384][ T7288]  do_syscall_64+0xa4/0xf80
[  172.336416][ T7288]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.336439][ T7288] RIP: 0033:0x7f6d7c39c14a
[  172.336454][ T7288] 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
[  172.336474][ T7288] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.336494][ T7288] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  172.336508][ T7288] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  172.336522][ T7288] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  172.336535][ T7288] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.336548][ T7288] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  172.336565][ T7288]  </TASK>
[  172.336574][ T7288] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.445623][ T7288] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  172.531495][ T7289] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  172.644935][ T7282] gfs2: fsid=syz:syz.0: found 1 quota changes
[  172.648699][ T7289] CPU: 0 UID: 0 PID: 7289 Comm: syz.0.99 Not tainted syzkaller #0 PREEMPT(full) 
[  172.648726][ T7289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  172.648738][ T7289] Call Trace:
[  172.648743][ T7289]  <TASK>
[  172.648749][ T7289]  dump_stack_lvl+0x97/0xe0
[  172.648776][ T7289]  sysfs_warn_dup.cold+0x1c/0x28
[  172.648808][ T7289]  sysfs_create_dir_ns+0x129/0x140
[  172.648835][ T7289]  kobject_add_internal+0x104/0x310
[  172.648861][ T7289]  kobject_init_and_add+0xb2/0xf0
[  172.648886][ T7289]  ? alloc_workqueue_noprof+0xe0/0xb60
[  172.648913][ T7289]  gfs2_sys_fs_add+0xef/0x200
[  172.648943][ T7289]  gfs2_fill_super+0x896/0x1210
[  172.648978][ T7289]  ? sb_set_blocksize+0x8c/0x150
[  172.649002][ T7289]  ? setup_bdev_super+0x19d/0x330
[  172.649024][ T7289]  ? __pfx_gfs2_fill_super+0x10/0x10
[  172.649057][ T7289]  get_tree_bdev_flags+0x1c0/0x290
[  172.649083][ T7289]  gfs2_get_tree+0x26/0xd0
[  172.649119][ T7289]  vfs_get_tree+0x30/0x120
[  172.649138][ T7289]  path_mount+0x5a9/0x1350
[  172.649169][ T7289]  ? putname+0x78/0xe0
[  172.649199][ T7289]  __x64_sys_mount+0x1a3/0x1e0
[  172.649231][ T7289]  do_syscall_64+0xa4/0xf80
[  172.649263][ T7289]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  172.649285][ T7289] RIP: 0033:0x7f41b599c14a
[  172.649300][ T7289] 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
[  172.649321][ T7289] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  172.649340][ T7289] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  172.649355][ T7289] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  172.649368][ T7289] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  172.649382][ T7289] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  172.649395][ T7289] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  172.649412][ T7289]  </TASK>
[  172.649422][ T7289] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  172.990786][ T7316] loop4: detected capacity change from 0 to 32768
[  173.011712][ T7289] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.071096][ T7319] loop2: detected capacity change from 0 to 32768
[  173.090880][ T7317] loop3: detected capacity change from 0 to 32768
[  173.107737][ T6342] syz-executor: attempt to access beyond end of device
[  173.107737][ T6342] loop1: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  173.177705][ T7316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.180817][ T6342] Buffer I/O error on dev loop1, logical block 8589934885, lost async page write
[  173.197731][ T7316] CPU: 0 UID: 0 PID: 7316 Comm: syz.4.107 Not tainted syzkaller #0 PREEMPT(full) 
[  173.197758][ T7316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.197770][ T7316] Call Trace:
[  173.197776][ T7316]  <TASK>
[  173.197782][ T7316]  dump_stack_lvl+0x97/0xe0
[  173.197810][ T7316]  sysfs_warn_dup.cold+0x1c/0x28
[  173.197842][ T7316]  sysfs_create_dir_ns+0x129/0x140
[  173.197868][ T7316]  kobject_add_internal+0x104/0x310
[  173.197892][ T7316]  kobject_init_and_add+0xb2/0xf0
[  173.197918][ T7316]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.197945][ T7316]  gfs2_sys_fs_add+0xef/0x200
[  173.197975][ T7316]  gfs2_fill_super+0x896/0x1210
[  173.198009][ T7316]  ? sb_set_blocksize+0x8c/0x150
[  173.198033][ T7316]  ? setup_bdev_super+0x19d/0x330
[  173.198062][ T7316]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.198096][ T7316]  get_tree_bdev_flags+0x1c0/0x290
[  173.198122][ T7316]  gfs2_get_tree+0x26/0xd0
[  173.198153][ T7316]  vfs_get_tree+0x30/0x120
[  173.198172][ T7316]  path_mount+0x5a9/0x1350
[  173.198203][ T7316]  ? putname+0x78/0xe0
[  173.198228][ T7316]  __x64_sys_mount+0x1a3/0x1e0
[  173.198259][ T7316]  do_syscall_64+0xa4/0xf80
[  173.198291][ T7316]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.198313][ T7316] RIP: 0033:0x7f9543b9c14a
[  173.198328][ T7316] 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
[  173.198349][ T7316] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.198367][ T7316] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  173.198382][ T7316] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  173.198396][ T7316] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  173.198409][ T7316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.198423][ T7316] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  173.198440][ T7316]  </TASK>
[  173.198449][ T7316] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  173.204220][ T6342] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  173.209920][ T7317] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.214131][ T6342] CPU: 1 UID: 0 PID: 6342 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  173.214156][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.214168][ T6342] Call Trace:
[  173.214174][ T6342]  <TASK>
[  173.214180][ T6342]  dump_stack_lvl+0x97/0xe0
[  173.214206][ T6342]  gfs2_withdraw.cold+0xa/0x77
[  173.214227][ T6342]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  173.214248][ T6342]  gfs2_ail1_flush+0x497/0x7e0
[  173.214284][ T6342]  gfs2_ail1_start+0x4f/0x80
[  173.214322][ T6342]  gfs2_log_flush+0xf95/0x1170
[  173.214342][ T6342]  gfs2_kill_sb+0x3e/0x1e0
[  173.214373][ T6342]  deactivate_locked_super+0x4f/0x120
[  173.214398][ T6342]  deactivate_super+0xa4/0xc0
[  173.214421][ T6342]  cleanup_mnt+0x145/0x1f0
[  173.214445][ T6342]  task_work_run+0x95/0xf0
[  173.214476][ T6342]  exit_to_user_mode_loop+0xcf/0x440
[  173.214503][ T6342]  do_syscall_64+0x2b8/0xf80
[  173.214536][ T6342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.214558][ T6342] RIP: 0033:0x7fa046f9c117
[  173.214573][ T6342] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  173.214594][ T6342] RSP: 002b:00007fffb055c848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  173.214612][ T6342] RAX: 0000000000000000 RBX: 00007fa04700471f RCX: 00007fa046f9c117
[  173.214626][ T6342] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb055c900
[  173.214639][ T6342] RBP: 00007fffb055c900 R08: 00007fffb055d900 R09: 00000000ffffffff
[  173.214652][ T6342] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb055d990
[  173.214666][ T6342] R13: 00007fa04700471f R14: 0000000000029e18 R15: 00007fffb055d9d0
[  173.214682][ T6342]  </TASK>
[  173.214688][ T6342] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  173.263376][ T7319] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.311803][ T7317] CPU: 1 UID: 0 PID: 7317 Comm: syz.3.108 Not tainted syzkaller #0 PREEMPT(full) 
[  173.311831][ T7317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.311843][ T7317] Call Trace:
[  173.311848][ T7317]  <TASK>
[  173.311854][ T7317]  dump_stack_lvl+0x97/0xe0
[  173.311881][ T7317]  sysfs_warn_dup.cold+0x1c/0x28
[  173.311912][ T7317]  sysfs_create_dir_ns+0x129/0x140
[  173.311939][ T7317]  kobject_add_internal+0x104/0x310
[  173.311964][ T7317]  kobject_init_and_add+0xb2/0xf0
[  173.311988][ T7317]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.312015][ T7317]  gfs2_sys_fs_add+0xef/0x200
[  173.312045][ T7317]  gfs2_fill_super+0x896/0x1210
[  173.312079][ T7317]  ? sb_set_blocksize+0x8c/0x150
[  173.312103][ T7317]  ? setup_bdev_super+0x19d/0x330
[  173.312124][ T7317]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.312157][ T7317]  get_tree_bdev_flags+0x1c0/0x290
[  173.312183][ T7317]  gfs2_get_tree+0x26/0xd0
[  173.312213][ T7317]  vfs_get_tree+0x30/0x120
[  173.312232][ T7317]  path_mount+0x5a9/0x1350
[  173.312263][ T7317]  ? putname+0x78/0xe0
[  173.312292][ T7317]  __x64_sys_mount+0x1a3/0x1e0
[  173.312323][ T7317]  do_syscall_64+0xa4/0xf80
[  173.312354][ T7317]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.312375][ T7317] RIP: 0033:0x7f1c4f59c14a
[  173.312390][ T7317] 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
[  173.312410][ T7317] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.312429][ T7317] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  173.312442][ T7317] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  173.312456][ T7317] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  173.312469][ T7317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.312482][ T7317] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  173.312498][ T7317]  </TASK>
[  173.312508][ T7317] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  173.318359][ T7319] CPU: 0 UID: 0 PID: 7319 Comm: syz.2.109 Not tainted syzkaller #0 PREEMPT(full) 
[  173.318385][ T7319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.318397][ T7319] Call Trace:
[  173.318402][ T7319]  <TASK>
[  173.318408][ T7319]  dump_stack_lvl+0x97/0xe0
[  173.318432][ T7319]  sysfs_warn_dup.cold+0x1c/0x28
[  173.318464][ T7319]  sysfs_create_dir_ns+0x129/0x140
[  173.318491][ T7319]  kobject_add_internal+0x104/0x310
[  173.318515][ T7319]  kobject_init_and_add+0xb2/0xf0
[  173.318540][ T7319]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.318567][ T7319]  gfs2_sys_fs_add+0xef/0x200
[  173.318596][ T7319]  gfs2_fill_super+0x896/0x1210
[  173.318630][ T7319]  ? sb_set_blocksize+0x8c/0x150
[  173.318653][ T7319]  ? setup_bdev_super+0x19d/0x330
[  173.318674][ T7319]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.318708][ T7319]  get_tree_bdev_flags+0x1c0/0x290
[  173.318734][ T7319]  gfs2_get_tree+0x26/0xd0
[  173.318765][ T7319]  vfs_get_tree+0x30/0x120
[  173.318800][ T7319]  path_mount+0x5a9/0x1350
[  173.318831][ T7319]  ? putname+0x78/0xe0
[  173.318861][ T7319]  __x64_sys_mount+0x1a3/0x1e0
[  173.318893][ T7319]  do_syscall_64+0xa4/0xf80
[  173.318924][ T7319]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.318946][ T7319] RIP: 0033:0x7f808a39c14a
[  173.318961][ T7319] 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
[  173.318982][ T7319] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.319001][ T7319] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  173.319015][ T7319] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  173.319029][ T7319] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  173.319047][ T7319] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.319060][ T7319] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  173.319077][ T7319]  </TASK>
[  173.319086][ T7319] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  173.347037][ T7316] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.350006][ T7319] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.352944][ T7311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.367196][ T7317] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.373558][ T7311] CPU: 1 UID: 0 PID: 7311 Comm: syz.6.106 Not tainted syzkaller #0 PREEMPT(full) 
[  173.373586][ T7311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.373598][ T7311] Call Trace:
[  173.373605][ T7311]  <TASK>
[  173.373612][ T7311]  dump_stack_lvl+0x97/0xe0
[  173.373639][ T7311]  sysfs_warn_dup.cold+0x1c/0x28
[  173.373669][ T7311]  sysfs_create_dir_ns+0x129/0x140
[  173.373697][ T7311]  kobject_add_internal+0x104/0x310
[  173.373721][ T7311]  kobject_init_and_add+0xb2/0xf0
[  173.373746][ T7311]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.373785][ T7311]  gfs2_sys_fs_add+0xef/0x200
[  173.373815][ T7311]  gfs2_fill_super+0x896/0x1210
[  173.373848][ T7311]  ? sb_set_blocksize+0x8c/0x150
[  173.373871][ T7311]  ? setup_bdev_super+0x19d/0x330
[  173.373897][ T7311]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.373930][ T7311]  get_tree_bdev_flags+0x1c0/0x290
[  173.373962][ T7311]  gfs2_get_tree+0x26/0xd0
[  173.373992][ T7311]  vfs_get_tree+0x30/0x120
[  173.374011][ T7311]  path_mount+0x5a9/0x1350
[  173.374043][ T7311]  ? putname+0x78/0xe0
[  173.374072][ T7311]  __x64_sys_mount+0x1a3/0x1e0
[  173.374105][ T7311]  do_syscall_64+0xa4/0xf80
[  173.374137][ T7311]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.374158][ T7311] RIP: 0033:0x7fc30eb9c14a
[  173.374173][ T7311] 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
[  173.374195][ T7311] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.374214][ T7311] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  173.374228][ T7311] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  173.374241][ T7311] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  173.374254][ T7311] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.374267][ T7311] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  173.374283][ T7311]  </TASK>
[  173.374294][ T7311] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  173.527834][ T7322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.528379][ T7311] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.558660][ T7322] CPU: 0 UID: 0 PID: 7322 Comm: syz.5.111 Not tainted syzkaller #0 PREEMPT(full) 
[  173.558688][ T7322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.558701][ T7322] Call Trace:
[  173.558706][ T7322]  <TASK>
[  173.558712][ T7322]  dump_stack_lvl+0x97/0xe0
[  173.558741][ T7322]  sysfs_warn_dup.cold+0x1c/0x28
[  173.558792][ T7322]  sysfs_create_dir_ns+0x129/0x140
[  173.558819][ T7322]  kobject_add_internal+0x104/0x310
[  173.558844][ T7322]  kobject_init_and_add+0xb2/0xf0
[  173.558869][ T7322]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.558901][ T7322]  gfs2_sys_fs_add+0xef/0x200
[  173.558931][ T7322]  gfs2_fill_super+0x896/0x1210
[  173.558966][ T7322]  ? sb_set_blocksize+0x8c/0x150
[  173.558991][ T7322]  ? setup_bdev_super+0x19d/0x330
[  173.559013][ T7322]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.559047][ T7322]  get_tree_bdev_flags+0x1c0/0x290
[  173.559079][ T7322]  gfs2_get_tree+0x26/0xd0
[  173.559109][ T7322]  vfs_get_tree+0x30/0x120
[  173.559128][ T7322]  path_mount+0x5a9/0x1350
[  173.559159][ T7322]  ? putname+0x78/0xe0
[  173.559190][ T7322]  __x64_sys_mount+0x1a3/0x1e0
[  173.559221][ T7322]  do_syscall_64+0xa4/0xf80
[  173.559253][ T7322]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.559275][ T7322] RIP: 0033:0x7f6d7c39c14a
[  173.559291][ T7322] 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
[  173.559311][ T7322] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.559331][ T7322] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  173.559367][ T7322] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  173.559380][ T7322] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  173.559394][ T7322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.559407][ T7322] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  173.559424][ T7322]  </TASK>
[  173.559432][ T7322] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  173.858582][ T7333] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  173.863210][ T7322] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  173.864370][ T7333] CPU: 1 UID: 0 PID: 7333 Comm: syz.0.112 Not tainted syzkaller #0 PREEMPT(full) 
[  173.864396][ T7333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  173.864408][ T7333] Call Trace:
[  173.864414][ T7333]  <TASK>
[  173.864421][ T7333]  dump_stack_lvl+0x97/0xe0
[  173.864447][ T7333]  sysfs_warn_dup.cold+0x1c/0x28
[  173.864479][ T7333]  sysfs_create_dir_ns+0x129/0x140
[  173.864506][ T7333]  kobject_add_internal+0x104/0x310
[  173.864530][ T7333]  kobject_init_and_add+0xb2/0xf0
[  173.864555][ T7333]  ? alloc_workqueue_noprof+0xe0/0xb60
[  173.864582][ T7333]  gfs2_sys_fs_add+0xef/0x200
[  173.864611][ T7333]  gfs2_fill_super+0x896/0x1210
[  173.864645][ T7333]  ? sb_set_blocksize+0x8c/0x150
[  173.864668][ T7333]  ? setup_bdev_super+0x19d/0x330
[  173.864690][ T7333]  ? __pfx_gfs2_fill_super+0x10/0x10
[  173.864723][ T7333]  get_tree_bdev_flags+0x1c0/0x290
[  173.864749][ T7333]  gfs2_get_tree+0x26/0xd0
[  173.864780][ T7333]  vfs_get_tree+0x30/0x120
[  173.864805][ T7333]  path_mount+0x5a9/0x1350
[  173.864836][ T7333]  ? putname+0x78/0xe0
[  173.864866][ T7333]  __x64_sys_mount+0x1a3/0x1e0
[  173.864897][ T7333]  do_syscall_64+0xa4/0xf80
[  173.864928][ T7333]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  173.864950][ T7333] RIP: 0033:0x7f41b599c14a
[  173.864965][ T7333] 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
[  173.864985][ T7333] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  173.865004][ T7333] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  173.865018][ T7333] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  173.865032][ T7333] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  173.865045][ T7333] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  173.865057][ T7333] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  173.865074][ T7333]  </TASK>
[  173.865082][ T7333] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  174.931473][ T7333] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  178.591778][ T6342] gfs2: fsid=syz:syz.0: warning: assertion "gfs2_log_is_empty(sdp)" failed - function = gfs2_make_fs_ro, file = fs/gfs2/super.c, line = 566
[  178.593209][ T6543] gfs2: fsid=syz:syz.0: file system withdrawn
[  178.606276][ T6342] CPU: 0 UID: 0 PID: 6342 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  178.606301][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  178.606313][ T6342] Call Trace:
[  178.606320][ T6342]  <TASK>
[  178.606328][ T6342]  dump_stack_lvl+0x97/0xe0
[  178.606355][ T6342]  gfs2_assert_warn_i.cold+0x38/0x94
[  178.606378][ T6342]  gfs2_make_fs_ro+0x13d/0x220
[  178.606401][ T6342]  ? __pfx_autoremove_wake_function+0x10/0x10
[  178.606437][ T6342]  gfs2_put_super+0xb4/0x2d0
[  178.606457][ T6342]  ? __pfx_gfs2_put_super+0x10/0x10
[  178.606479][ T6342]  generic_shutdown_super+0x9c/0x160
[  178.606502][ T6342]  kill_block_super+0x1d/0x50
[  178.606522][ T6342]  gfs2_kill_sb+0x1b6/0x1e0
[  178.606554][ T6342]  deactivate_locked_super+0x4f/0x120
[  178.606579][ T6342]  deactivate_super+0xa4/0xc0
[  178.606602][ T6342]  cleanup_mnt+0x145/0x1f0
[  178.606627][ T6342]  task_work_run+0x95/0xf0
[  178.606658][ T6342]  exit_to_user_mode_loop+0xcf/0x440
[  178.606692][ T6342]  do_syscall_64+0x2b8/0xf80
[  178.606725][ T6342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  178.606747][ T6342] RIP: 0033:0x7fa046f9c117
[  178.606762][ T6342] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  178.606783][ T6342] RSP: 002b:00007fffb055c848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  178.606802][ T6342] RAX: 0000000000000000 RBX: 00007fa04700471f RCX: 00007fa046f9c117
[  178.606816][ T6342] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb055c900
[  178.606829][ T6342] RBP: 00007fffb055c900 R08: 00007fffb055d900 R09: 00000000ffffffff
[  178.606842][ T6342] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb055d990
[  178.606856][ T6342] R13: 00007fa04700471f R14: 0000000000029e18 R15: 00007fffb055d9d0
[  178.606872][ T6342]  </TASK>
[  178.895372][ T7341] set_capacity_and_notify: 3 callbacks suppressed
[  178.895382][ T7341] loop1: detected capacity change from 0 to 32768
[  178.918121][ T7341] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  178.926749][ T7341] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  178.934850][ T7341] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  178.942705][ T6543] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  178.949450][ T6543] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  178.959719][ T6543] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  178.967169][ T6543] gfs2: fsid=syz:syz.0: jid=0: Done
[  178.972467][ T7341] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  178.997717][ T7341] gfs2: fsid=syz:syz.0: found 1 quota changes
[  179.006338][ T6342] syz-executor: attempt to access beyond end of device
[  179.006338][ T6342] loop1: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  179.021260][ T6342] Buffer I/O error on dev loop1, logical block 8589934885, lost async page write
[  179.030780][ T6342] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  179.044108][ T6342] CPU: 1 UID: 0 PID: 6342 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  179.044130][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  179.044141][ T6342] Call Trace:
[  179.044145][ T6342]  <TASK>
[  179.044151][ T6342]  dump_stack_lvl+0x97/0xe0
[  179.044177][ T6342]  gfs2_withdraw.cold+0xa/0x77
[  179.044198][ T6342]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  179.044220][ T6342]  gfs2_ail1_flush+0x497/0x7e0
[  179.044259][ T6342]  gfs2_ail1_start+0x4f/0x80
[  179.044297][ T6342]  gfs2_log_flush+0xf95/0x1170
[  179.044318][ T6342]  gfs2_kill_sb+0x3e/0x1e0
[  179.044350][ T6342]  deactivate_locked_super+0x4f/0x120
[  179.044375][ T6342]  deactivate_super+0xa4/0xc0
[  179.044398][ T6342]  cleanup_mnt+0x145/0x1f0
[  179.044427][ T6342]  task_work_run+0x95/0xf0
[  179.044456][ T6342]  exit_to_user_mode_loop+0xcf/0x440
[  179.044484][ T6342]  do_syscall_64+0x2b8/0xf80
[  179.044516][ T6342]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  179.044537][ T6342] RIP: 0033:0x7fa046f9c117
[  179.044553][ T6342] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  179.044575][ T6342] RSP: 002b:00007fffb055c848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  179.044596][ T6342] RAX: 0000000000000000 RBX: 00007fa04700471f RCX: 00007fa046f9c117
[  179.044610][ T6342] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb055c900
[  179.044624][ T6342] RBP: 00007fffb055c900 R08: 00007fffb055d900 R09: 00000000ffffffff
[  179.044638][ T6342] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb055d990
[  179.044651][ T6342] R13: 00007fa04700471f R14: 000000000002ba82 R15: 00007fffb055d9d0
[  179.044665][ T6342]  </TASK>
[  179.044671][ T6342] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  184.272858][ T6543] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:08:15 executed programs: 110
[  186.656352][ T7361] loop0: detected capacity change from 0 to 32768
[  186.693735][ T7360] loop1: detected capacity change from 0 to 32768
[  186.722511][ T7361] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  186.734044][ T7356] loop3: detected capacity change from 0 to 32768
[  186.740869][ T7361] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  186.749541][ T7361] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  186.757943][   T93] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  186.761817][ T7360] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  186.771374][   T93] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  186.786370][   T93] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 14ms
[  186.794336][   T93] gfs2: fsid=syz:syz.0: jid=0: Done
[  186.799538][ T7361] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  186.799595][ T7356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  186.813657][ T7354] loop2: detected capacity change from 0 to 32768
[  186.815318][ T7356] CPU: 1 UID: 0 PID: 7356 Comm: syz.3.116 Not tainted syzkaller #0 PREEMPT(full) 
[  186.815344][ T7356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  186.815357][ T7356] Call Trace:
[  186.815361][ T7356]  <TASK>
[  186.815367][ T7356]  dump_stack_lvl+0x97/0xe0
[  186.815394][ T7356]  sysfs_warn_dup.cold+0x1c/0x28
[  186.815426][ T7356]  sysfs_create_dir_ns+0x129/0x140
[  186.815453][ T7356]  kobject_add_internal+0x104/0x310
[  186.815477][ T7356]  kobject_init_and_add+0xb2/0xf0
[  186.815502][ T7356]  ? alloc_workqueue_noprof+0xe0/0xb60
[  186.815530][ T7356]  gfs2_sys_fs_add+0xef/0x200
[  186.815559][ T7356]  gfs2_fill_super+0x896/0x1210
[  186.815593][ T7356]  ? sb_set_blocksize+0x8c/0x150
[  186.815617][ T7356]  ? setup_bdev_super+0x19d/0x330
[  186.815646][ T7356]  ? __pfx_gfs2_fill_super+0x10/0x10
[  186.815679][ T7356]  get_tree_bdev_flags+0x1c0/0x290
[  186.815705][ T7356]  gfs2_get_tree+0x26/0xd0
[  186.815735][ T7356]  vfs_get_tree+0x30/0x120
[  186.815754][ T7356]  path_mount+0x5a9/0x1350
[  186.815786][ T7356]  ? putname+0x78/0xe0
[  186.815815][ T7356]  __x64_sys_mount+0x1a3/0x1e0
[  186.815846][ T7356]  do_syscall_64+0xa4/0xf80
[  186.815878][ T7356]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  186.815898][ T7356] RIP: 0033:0x7f1c4f59c14a
[  186.815918][ T7356] 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
[  186.815939][ T7356] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  186.815963][ T7356] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  186.815977][ T7356] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  186.815991][ T7356] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  186.816004][ T7356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  186.816017][ T7356] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  186.816033][ T7356]  </TASK>
[  186.816043][ T7356] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  186.851751][ T7360] CPU: 0 UID: 0 PID: 7360 Comm: syz.1.114 Not tainted syzkaller #0 PREEMPT(full) 
[  186.851780][ T7360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  186.851792][ T7360] Call Trace:
[  186.851798][ T7360]  <TASK>
[  186.851804][ T7360]  dump_stack_lvl+0x97/0xe0
[  186.851832][ T7360]  sysfs_warn_dup.cold+0x1c/0x28
[  186.851864][ T7360]  sysfs_create_dir_ns+0x129/0x140
[  186.851898][ T7360]  kobject_add_internal+0x104/0x310
[  186.851923][ T7360]  kobject_init_and_add+0xb2/0xf0
[  186.851947][ T7360]  ? alloc_workqueue_noprof+0xe0/0xb60
[  186.851976][ T7360]  gfs2_sys_fs_add+0xef/0x200
[  186.852005][ T7360]  gfs2_fill_super+0x896/0x1210
[  186.852039][ T7360]  ? sb_set_blocksize+0x8c/0x150
[  186.852066][ T7360]  ? setup_bdev_super+0x19d/0x330
[  186.852089][ T7360]  ? __pfx_gfs2_fill_super+0x10/0x10
[  186.852123][ T7360]  get_tree_bdev_flags+0x1c0/0x290
[  186.852150][ T7360]  gfs2_get_tree+0x26/0xd0
[  186.852180][ T7360]  vfs_get_tree+0x30/0x120
[  186.852199][ T7360]  path_mount+0x5a9/0x1350
[  186.852230][ T7360]  ? putname+0x78/0xe0
[  186.852260][ T7360]  __x64_sys_mount+0x1a3/0x1e0
[  186.852292][ T7360]  do_syscall_64+0xa4/0xf80
[  186.852324][ T7360]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  186.852346][ T7360] RIP: 0033:0x7fa046f9c14a
[  186.852362][ T7360] 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
[  186.852383][ T7360] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  186.852402][ T7360] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  186.852415][ T7360] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  186.852429][ T7360] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  186.852442][ T7360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  186.852455][ T7360] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  186.852471][ T7360]  </TASK>
[  186.852512][ T7360] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  186.862715][ T7356] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  186.918706][ T7359] loop6: detected capacity change from 0 to 32768
[  186.924985][ T7360] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  186.941424][ T7353] loop4: detected capacity change from 0 to 32768
[  186.946364][ T7354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.006210][ T7352] loop5: detected capacity change from 0 to 32768
[  187.012869][ T7354] CPU: 0 UID: 0 PID: 7354 Comm: syz.2.115 Not tainted syzkaller #0 PREEMPT(full) 
[  187.012899][ T7354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.012911][ T7354] Call Trace:
[  187.012916][ T7354]  <TASK>
[  187.012922][ T7354]  dump_stack_lvl+0x97/0xe0
[  187.012949][ T7354]  sysfs_warn_dup.cold+0x1c/0x28
[  187.012981][ T7354]  sysfs_create_dir_ns+0x129/0x140
[  187.013008][ T7354]  kobject_add_internal+0x104/0x310
[  187.013032][ T7354]  kobject_init_and_add+0xb2/0xf0
[  187.013056][ T7354]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.013085][ T7354]  gfs2_sys_fs_add+0xef/0x200
[  187.013115][ T7354]  gfs2_fill_super+0x896/0x1210
[  187.013153][ T7354]  ? sb_set_blocksize+0x8c/0x150
[  187.013176][ T7354]  ? setup_bdev_super+0x19d/0x330
[  187.013198][ T7354]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.013231][ T7354]  get_tree_bdev_flags+0x1c0/0x290
[  187.013258][ T7354]  gfs2_get_tree+0x26/0xd0
[  187.013288][ T7354]  vfs_get_tree+0x30/0x120
[  187.013307][ T7354]  path_mount+0x5a9/0x1350
[  187.013338][ T7354]  ? putname+0x78/0xe0
[  187.013367][ T7354]  __x64_sys_mount+0x1a3/0x1e0
[  187.013398][ T7354]  do_syscall_64+0xa4/0xf80
[  187.013434][ T7354]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.013455][ T7354] RIP: 0033:0x7f808a39c14a
[  187.013472][ T7354] 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
[  187.013492][ T7354] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.013511][ T7354] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  187.013524][ T7354] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  187.013538][ T7354] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  187.013551][ T7354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.013564][ T7354] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  187.013579][ T7354]  </TASK>
[  187.014276][ T7354] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.136773][ T7361] gfs2: fsid=syz:syz.0: found 1 quota changes
[  187.137487][ T7354] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  187.142268][ T7359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.506696][ T6336] syz-executor: attempt to access beyond end of device
[  187.506696][ T6336] loop0: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  187.507828][ T7359] CPU: 1 UID: 0 PID: 7359 Comm: syz.6.119 Not tainted syzkaller #0 PREEMPT(full) 
[  187.507855][ T7359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.507868][ T7359] Call Trace:
[  187.507874][ T7359]  <TASK>
[  187.507881][ T7359]  dump_stack_lvl+0x97/0xe0
[  187.507908][ T7359]  sysfs_warn_dup.cold+0x1c/0x28
[  187.507940][ T7359]  sysfs_create_dir_ns+0x129/0x140
[  187.507966][ T7359]  kobject_add_internal+0x104/0x310
[  187.507990][ T7359]  kobject_init_and_add+0xb2/0xf0
[  187.508015][ T7359]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.508042][ T7359]  gfs2_sys_fs_add+0xef/0x200
[  187.508072][ T7359]  gfs2_fill_super+0x896/0x1210
[  187.508107][ T7359]  ? sb_set_blocksize+0x8c/0x150
[  187.508132][ T7359]  ? setup_bdev_super+0x19d/0x330
[  187.508154][ T7359]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.508187][ T7359]  get_tree_bdev_flags+0x1c0/0x290
[  187.508214][ T7359]  gfs2_get_tree+0x26/0xd0
[  187.508246][ T7359]  vfs_get_tree+0x30/0x120
[  187.508266][ T7359]  path_mount+0x5a9/0x1350
[  187.508297][ T7359]  ? putname+0x78/0xe0
[  187.508327][ T7359]  __x64_sys_mount+0x1a3/0x1e0
[  187.508359][ T7359]  do_syscall_64+0xa4/0xf80
[  187.508391][ T7359]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.508413][ T7359] RIP: 0033:0x7fc30eb9c14a
[  187.508429][ T7359] 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
[  187.508450][ T7359] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.508470][ T7359] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  187.508484][ T7359] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  187.508498][ T7359] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  187.508511][ T7359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.508524][ T7359] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  187.508541][ T7359]  </TASK>
[  187.508551][ T7359] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.522242][ T7353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.542681][ T7359] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  187.582846][ T7378] loop1: detected capacity change from 0 to 32768
[  187.601770][ T7353] CPU: 1 UID: 0 PID: 7353 Comm: syz.4.117 Not tainted syzkaller #0 PREEMPT(full) 
[  187.601797][ T7353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.601810][ T7353] Call Trace:
[  187.601815][ T7353]  <TASK>
[  187.601822][ T7353]  dump_stack_lvl+0x97/0xe0
[  187.601849][ T7353]  sysfs_warn_dup.cold+0x1c/0x28
[  187.601881][ T7353]  sysfs_create_dir_ns+0x129/0x140
[  187.601909][ T7353]  kobject_add_internal+0x104/0x310
[  187.601932][ T7353]  kobject_init_and_add+0xb2/0xf0
[  187.601956][ T7353]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.601984][ T7353]  gfs2_sys_fs_add+0xef/0x200
[  187.602013][ T7353]  gfs2_fill_super+0x896/0x1210
[  187.602047][ T7353]  ? sb_set_blocksize+0x8c/0x150
[  187.602071][ T7353]  ? setup_bdev_super+0x19d/0x330
[  187.602092][ T7353]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.602125][ T7353]  get_tree_bdev_flags+0x1c0/0x290
[  187.602151][ T7353]  gfs2_get_tree+0x26/0xd0
[  187.602182][ T7353]  vfs_get_tree+0x30/0x120
[  187.602201][ T7353]  path_mount+0x5a9/0x1350
[  187.602231][ T7353]  ? putname+0x78/0xe0
[  187.602260][ T7353]  __x64_sys_mount+0x1a3/0x1e0
[  187.602292][ T7353]  do_syscall_64+0xa4/0xf80
[  187.602324][ T7353]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.602346][ T7353] RIP: 0033:0x7f9543b9c14a
[  187.602361][ T7353] 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
[  187.602381][ T7353] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.602401][ T7353] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  187.602415][ T7353] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  187.602428][ T7353] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  187.602442][ T7353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.602455][ T7353] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  187.602471][ T7353]  </TASK>
[  187.602483][ T7353] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.621966][ T6336] Buffer I/O error on dev loop0, logical block 8589934885, lost async page write
[  187.646918][ T7382] loop2: detected capacity change from 0 to 32768
[  187.664863][ T7352] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.673269][ T6336] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  187.683112][ T7352] CPU: 0 UID: 0 PID: 7352 Comm: syz.5.118 Not tainted syzkaller #0 PREEMPT(full) 
[  187.683140][ T7352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.683152][ T7352] Call Trace:
[  187.683157][ T7352]  <TASK>
[  187.683164][ T7352]  dump_stack_lvl+0x97/0xe0
[  187.683191][ T7352]  sysfs_warn_dup.cold+0x1c/0x28
[  187.683224][ T7352]  sysfs_create_dir_ns+0x129/0x140
[  187.683251][ T7352]  kobject_add_internal+0x104/0x310
[  187.683276][ T7352]  kobject_init_and_add+0xb2/0xf0
[  187.683301][ T7352]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.683330][ T7352]  gfs2_sys_fs_add+0xef/0x200
[  187.683359][ T7352]  gfs2_fill_super+0x896/0x1210
[  187.683394][ T7352]  ? sb_set_blocksize+0x8c/0x150
[  187.683417][ T7352]  ? setup_bdev_super+0x19d/0x330
[  187.683439][ T7352]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.683472][ T7352]  get_tree_bdev_flags+0x1c0/0x290
[  187.683499][ T7352]  gfs2_get_tree+0x26/0xd0
[  187.683530][ T7352]  vfs_get_tree+0x30/0x120
[  187.683549][ T7352]  path_mount+0x5a9/0x1350
[  187.683580][ T7352]  ? putname+0x78/0xe0
[  187.683610][ T7352]  __x64_sys_mount+0x1a3/0x1e0
[  187.683642][ T7352]  do_syscall_64+0xa4/0xf80
[  187.683674][ T7352]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.683696][ T7352] RIP: 0033:0x7f6d7c39c14a
[  187.683712][ T7352] 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
[  187.683732][ T7352] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.683752][ T7352] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  187.683765][ T7352] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  187.683779][ T7352] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  187.683793][ T7352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.683806][ T7352] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  187.683822][ T7352]  </TASK>
[  187.683830][ T7352] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.689166][ T6336] CPU: 1 UID: 0 PID: 6336 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  187.689191][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.689203][ T6336] Call Trace:
[  187.689209][ T6336]  <TASK>
[  187.689215][ T6336]  dump_stack_lvl+0x97/0xe0
[  187.689239][ T6336]  gfs2_withdraw.cold+0xa/0x77
[  187.689259][ T6336]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  187.689279][ T6336]  gfs2_ail1_flush+0x497/0x7e0
[  187.689315][ T6336]  gfs2_ail1_start+0x4f/0x80
[  187.689352][ T6336]  gfs2_log_flush+0xf95/0x1170
[  187.689372][ T6336]  gfs2_kill_sb+0x3e/0x1e0
[  187.689403][ T6336]  deactivate_locked_super+0x4f/0x120
[  187.689427][ T6336]  deactivate_super+0xa4/0xc0
[  187.689450][ T6336]  cleanup_mnt+0x145/0x1f0
[  187.689475][ T6336]  task_work_run+0x95/0xf0
[  187.689505][ T6336]  exit_to_user_mode_loop+0xcf/0x440
[  187.689532][ T6336]  do_syscall_64+0x2b8/0xf80
[  187.689563][ T6336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.689584][ T6336] RIP: 0033:0x7f41b599c117
[  187.689599][ T6336] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  187.689619][ T6336] RSP: 002b:00007ffe93807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  187.689637][ T6336] RAX: 0000000000000000 RBX: 00007f41b5a0471f RCX: 00007f41b599c117
[  187.689650][ T6336] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe93807230
[  187.689664][ T6336] RBP: 00007ffe93807230 R08: 00007ffe93808230 R09: 00000000ffffffff
[  187.689677][ T6336] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe938082c0
[  187.689696][ T6336] R13: 00007f41b5a0471f R14: 000000000002db3f R15: 00007ffe93808300
[  187.689712][ T6336]  </TASK>
[  187.689718][ T6336] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  187.697200][ T7352] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  187.754199][ T7380] loop3: detected capacity change from 0 to 32768
[  187.760832][ T7353] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  187.782033][ T7378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.832151][ T7380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.837823][ T7378] CPU: 1 UID: 0 PID: 7378 Comm: syz.1.121 Not tainted syzkaller #0 PREEMPT(full) 
[  187.837849][ T7378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.837861][ T7378] Call Trace:
[  187.837866][ T7378]  <TASK>
[  187.837872][ T7378]  dump_stack_lvl+0x97/0xe0
[  187.837899][ T7378]  sysfs_warn_dup.cold+0x1c/0x28
[  187.837931][ T7378]  sysfs_create_dir_ns+0x129/0x140
[  187.837958][ T7378]  kobject_add_internal+0x104/0x310
[  187.837982][ T7378]  kobject_init_and_add+0xb2/0xf0
[  187.838007][ T7378]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.838035][ T7378]  gfs2_sys_fs_add+0xef/0x200
[  187.838063][ T7378]  gfs2_fill_super+0x896/0x1210
[  187.838097][ T7378]  ? sb_set_blocksize+0x8c/0x150
[  187.838121][ T7378]  ? setup_bdev_super+0x19d/0x330
[  187.838143][ T7378]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.838176][ T7378]  get_tree_bdev_flags+0x1c0/0x290
[  187.838202][ T7378]  gfs2_get_tree+0x26/0xd0
[  187.838233][ T7378]  vfs_get_tree+0x30/0x120
[  187.838252][ T7378]  path_mount+0x5a9/0x1350
[  187.838284][ T7378]  ? putname+0x78/0xe0
[  187.838314][ T7378]  __x64_sys_mount+0x1a3/0x1e0
[  187.838346][ T7378]  do_syscall_64+0xa4/0xf80
[  187.838378][ T7378]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.838400][ T7378] RIP: 0033:0x7fa046f9c14a
[  187.838416][ T7378] 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
[  187.838436][ T7378] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.838455][ T7378] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  187.838469][ T7378] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  187.838483][ T7378] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  187.838496][ T7378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.838510][ T7378] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  187.838526][ T7378]  </TASK>
[  187.838535][ T7378] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.911793][ T7380] CPU: 0 UID: 0 PID: 7380 Comm: syz.3.123 Not tainted syzkaller #0 PREEMPT(full) 
[  187.911820][ T7380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  187.911832][ T7380] Call Trace:
[  187.911838][ T7380]  <TASK>
[  187.911846][ T7380]  dump_stack_lvl+0x97/0xe0
[  187.911873][ T7380]  sysfs_warn_dup.cold+0x1c/0x28
[  187.911906][ T7380]  sysfs_create_dir_ns+0x129/0x140
[  187.911939][ T7380]  kobject_add_internal+0x104/0x310
[  187.911965][ T7380]  kobject_init_and_add+0xb2/0xf0
[  187.911995][ T7380]  ? alloc_workqueue_noprof+0xe0/0xb60
[  187.912022][ T7380]  gfs2_sys_fs_add+0xef/0x200
[  187.912052][ T7380]  gfs2_fill_super+0x896/0x1210
[  187.912088][ T7380]  ? sb_set_blocksize+0x8c/0x150
[  187.912113][ T7380]  ? setup_bdev_super+0x19d/0x330
[  187.912135][ T7380]  ? __pfx_gfs2_fill_super+0x10/0x10
[  187.912169][ T7380]  get_tree_bdev_flags+0x1c0/0x290
[  187.912196][ T7380]  gfs2_get_tree+0x26/0xd0
[  187.912227][ T7380]  vfs_get_tree+0x30/0x120
[  187.912246][ T7380]  path_mount+0x5a9/0x1350
[  187.912277][ T7380]  ? putname+0x78/0xe0
[  187.912308][ T7380]  __x64_sys_mount+0x1a3/0x1e0
[  187.912339][ T7380]  do_syscall_64+0xa4/0xf80
[  187.912372][ T7380]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  187.912394][ T7380] RIP: 0033:0x7f1c4f59c14a
[  187.912410][ T7380] 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
[  187.912430][ T7380] RSP: 002b:00007f1c50423e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  187.912449][ T7380] RAX: ffffffffffffffda RBX: 00007f1c50423ee0 RCX: 00007f1c4f59c14a
[  187.912463][ T7380] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f1c50423ea0
[  187.912477][ T7380] RBP: 00002000000124c0 R08: 00007f1c50423ee0 R09: 0000000000000000
[  187.912490][ T7380] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  187.912503][ T7380] R13: 00007f1c50423ea0 R14: 0000000000012588 R15: 0000200000000000
[  187.912520][ T7380]  </TASK>
[  187.912529][ T7380] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  187.918967][ T7378] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  187.935490][ T7382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  187.968593][ T7380] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  188.211967][ T7382] CPU: 0 UID: 0 PID: 7382 Comm: syz.2.122 Not tainted syzkaller #0 PREEMPT(full) 
[  188.211994][ T7382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  188.212007][ T7382] Call Trace:
[  188.212012][ T7382]  <TASK>
[  188.212019][ T7382]  dump_stack_lvl+0x97/0xe0
[  188.212047][ T7382]  sysfs_warn_dup.cold+0x1c/0x28
[  188.212080][ T7382]  sysfs_create_dir_ns+0x129/0x140
[  188.212107][ T7382]  kobject_add_internal+0x104/0x310
[  188.212132][ T7382]  kobject_init_and_add+0xb2/0xf0
[  188.212161][ T7382]  ? alloc_workqueue_noprof+0xe0/0xb60
[  188.212188][ T7382]  gfs2_sys_fs_add+0xef/0x200
[  188.212217][ T7382]  gfs2_fill_super+0x896/0x1210
[  188.212252][ T7382]  ? sb_set_blocksize+0x8c/0x150
[  188.212275][ T7382]  ? setup_bdev_super+0x19d/0x330
[  188.212297][ T7382]  ? __pfx_gfs2_fill_super+0x10/0x10
[  188.212330][ T7382]  get_tree_bdev_flags+0x1c0/0x290
[  188.212357][ T7382]  gfs2_get_tree+0x26/0xd0
[  188.212388][ T7382]  vfs_get_tree+0x30/0x120
[  188.212407][ T7382]  path_mount+0x5a9/0x1350
[  188.212438][ T7382]  ? putname+0x78/0xe0
[  188.212469][ T7382]  __x64_sys_mount+0x1a3/0x1e0
[  188.212500][ T7382]  do_syscall_64+0xa4/0xf80
[  188.212532][ T7382]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  188.212554][ T7382] RIP: 0033:0x7f808a39c14a
[  188.212570][ T7382] 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
[  188.212590][ T7382] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  188.212609][ T7382] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  188.212622][ T7382] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  188.212636][ T7382] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  188.212649][ T7382] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  188.212663][ T7382] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  188.212679][ T7382]  </TASK>
[  188.212717][ T7382] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  188.461791][ T7393] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  188.514032][ T7382] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  188.516007][ T7393] CPU: 1 UID: 0 PID: 7393 Comm: syz.1.124 Not tainted syzkaller #0 PREEMPT(full) 
[  188.516033][ T7393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  188.516045][ T7393] Call Trace:
[  188.516051][ T7393]  <TASK>
[  188.516057][ T7393]  dump_stack_lvl+0x97/0xe0
[  188.516084][ T7393]  sysfs_warn_dup.cold+0x1c/0x28
[  188.516117][ T7393]  sysfs_create_dir_ns+0x129/0x140
[  188.516145][ T7393]  kobject_add_internal+0x104/0x310
[  188.516170][ T7393]  kobject_init_and_add+0xb2/0xf0
[  188.516195][ T7393]  ? alloc_workqueue_noprof+0xe0/0xb60
[  188.516223][ T7393]  gfs2_sys_fs_add+0xef/0x200
[  188.516254][ T7393]  gfs2_fill_super+0x896/0x1210
[  188.516289][ T7393]  ? sb_set_blocksize+0x8c/0x150
[  188.516313][ T7393]  ? setup_bdev_super+0x19d/0x330
[  188.516335][ T7393]  ? __pfx_gfs2_fill_super+0x10/0x10
[  188.516369][ T7393]  get_tree_bdev_flags+0x1c0/0x290
[  188.516396][ T7393]  gfs2_get_tree+0x26/0xd0
[  188.516427][ T7393]  vfs_get_tree+0x30/0x120
[  188.516447][ T7393]  path_mount+0x5a9/0x1350
[  188.516478][ T7393]  ? putname+0x78/0xe0
[  188.516508][ T7393]  __x64_sys_mount+0x1a3/0x1e0
[  188.516540][ T7393]  do_syscall_64+0xa4/0xf80
[  188.516573][ T7393]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  188.516595][ T7393] RIP: 0033:0x7fa046f9c14a
[  188.516612][ T7393] 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
[  188.516633][ T7393] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  188.516653][ T7393] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  188.516667][ T7393] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  188.516682][ T7393] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  188.516695][ T7393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  188.516708][ T7393] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  188.516725][ T7393]  </TASK>
[  188.516735][ T7393] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  188.519775][ T7397] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  188.551775][ T7393] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  188.561218][ T7395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  188.591839][ T7397] CPU: 1 UID: 0 PID: 7397 Comm: syz.4.126 Not tainted syzkaller #0 PREEMPT(full) 
[  188.591867][ T7397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  188.591880][ T7397] Call Trace:
[  188.591886][ T7397]  <TASK>
[  188.591893][ T7397]  dump_stack_lvl+0x97/0xe0
[  188.591921][ T7397]  sysfs_warn_dup.cold+0x1c/0x28
[  188.591953][ T7397]  sysfs_create_dir_ns+0x129/0x140
[  188.591981][ T7397]  kobject_add_internal+0x104/0x310
[  188.592005][ T7397]  kobject_init_and_add+0xb2/0xf0
[  188.592030][ T7397]  ? alloc_workqueue_noprof+0xe0/0xb60
[  188.592058][ T7397]  gfs2_sys_fs_add+0xef/0x200
[  188.592088][ T7397]  gfs2_fill_super+0x896/0x1210
[  188.592123][ T7397]  ? sb_set_blocksize+0x8c/0x150
[  188.592147][ T7397]  ? setup_bdev_super+0x19d/0x330
[  188.592169][ T7397]  ? __pfx_gfs2_fill_super+0x10/0x10
[  188.592203][ T7397]  get_tree_bdev_flags+0x1c0/0x290
[  188.592229][ T7397]  gfs2_get_tree+0x26/0xd0
[  188.592259][ T7397]  vfs_get_tree+0x30/0x120
[  188.592278][ T7397]  path_mount+0x5a9/0x1350
[  188.592310][ T7397]  ? putname+0x78/0xe0
[  188.592340][ T7397]  __x64_sys_mount+0x1a3/0x1e0
[  188.592371][ T7397]  do_syscall_64+0xa4/0xf80
[  188.592404][ T7397]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  188.592426][ T7397] RIP: 0033:0x7f9543b9c14a
[  188.592442][ T7397] 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
[  188.592462][ T7397] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  188.592481][ T7397] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  188.592495][ T7397] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  188.592509][ T7397] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  188.592522][ T7397] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  188.592536][ T7397] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  188.592552][ T7397]  </TASK>
[  188.592562][ T7397] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  188.627634][ T7395] CPU: 0 UID: 0 PID: 7395 Comm: syz.6.125 Not tainted syzkaller #0 PREEMPT(full) 
[  188.627663][ T7395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  188.627675][ T7395] Call Trace:
[  188.627680][ T7395]  <TASK>
[  188.627686][ T7395]  dump_stack_lvl+0x97/0xe0
[  188.627713][ T7395]  sysfs_warn_dup.cold+0x1c/0x28
[  188.627746][ T7395]  sysfs_create_dir_ns+0x129/0x140
[  188.627772][ T7395]  kobject_add_internal+0x104/0x310
[  188.627796][ T7395]  kobject_init_and_add+0xb2/0xf0
[  188.627821][ T7395]  ? alloc_workqueue_noprof+0xe0/0xb60
[  188.627849][ T7395]  gfs2_sys_fs_add+0xef/0x200
[  188.627878][ T7395]  gfs2_fill_super+0x896/0x1210
[  188.627912][ T7395]  ? sb_set_blocksize+0x8c/0x150
[  188.627936][ T7395]  ? setup_bdev_super+0x19d/0x330
[  188.627957][ T7395]  ? __pfx_gfs2_fill_super+0x10/0x10
[  188.627991][ T7395]  get_tree_bdev_flags+0x1c0/0x290
[  188.628017][ T7395]  gfs2_get_tree+0x26/0xd0
[  188.628048][ T7395]  vfs_get_tree+0x30/0x120
[  188.628067][ T7395]  path_mount+0x5a9/0x1350
[  188.628098][ T7395]  ? putname+0x78/0xe0
[  188.628128][ T7395]  __x64_sys_mount+0x1a3/0x1e0
[  188.628160][ T7395]  do_syscall_64+0xa4/0xf80
[  188.628192][ T7395]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  188.628213][ T7395] RIP: 0033:0x7fc30eb9c14a
[  188.628229][ T7395] 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
[  188.628250][ T7395] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  188.628269][ T7395] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  188.628282][ T7395] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  188.628296][ T7395] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  188.628309][ T7395] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  188.628322][ T7395] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  188.628347][ T7395]  </TASK>
[  188.628356][ T7395] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  188.659119][ T7397] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  188.686915][ T7395] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  192.832852][ T6788] gfs2: fsid=syz:syz.0: file system withdrawn
[  192.918247][ T7407] set_capacity_and_notify: 3 callbacks suppressed
[  192.918257][ T7407] loop0: detected capacity change from 0 to 32768
[  192.934951][ T7407] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  192.943145][ T7407] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  192.951549][ T7407] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  192.959973][   T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  192.966797][   T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  192.976973][   T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  192.984424][   T10] gfs2: fsid=syz:syz.0: jid=0: Done
[  192.989640][ T7407] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  192.997639][ T1309] ieee802154 phy0 wpan0: encryption failed: -22
[  193.004348][ T1309] ieee802154 phy1 wpan1: encryption failed: -22
[  193.028571][ T7407] gfs2: fsid=syz:syz.0: found 1 quota changes
[  193.037190][ T6336] syz-executor: attempt to access beyond end of device
[  193.037190][ T6336] loop0: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  193.051895][ T6336] Buffer I/O error on dev loop0, logical block 8589934885, lost async page write
[  193.061379][ T6336] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  193.074747][ T6336] CPU: 0 UID: 0 PID: 6336 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  193.074775][ T6336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  193.074787][ T6336] Call Trace:
[  193.074792][ T6336]  <TASK>
[  193.074798][ T6336]  dump_stack_lvl+0x97/0xe0
[  193.074823][ T6336]  gfs2_withdraw.cold+0xa/0x77
[  193.074842][ T6336]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  193.074863][ T6336]  gfs2_ail1_flush+0x497/0x7e0
[  193.074900][ T6336]  gfs2_ail1_start+0x4f/0x80
[  193.074941][ T6336]  gfs2_log_flush+0xf95/0x1170
[  193.074963][ T6336]  gfs2_kill_sb+0x3e/0x1e0
[  193.074997][ T6336]  deactivate_locked_super+0x4f/0x120
[  193.075019][ T6336]  deactivate_super+0xa4/0xc0
[  193.075038][ T6336]  cleanup_mnt+0x145/0x1f0
[  193.075060][ T6336]  task_work_run+0x95/0xf0
[  193.075086][ T6336]  exit_to_user_mode_loop+0xcf/0x440
[  193.075113][ T6336]  do_syscall_64+0x2b8/0xf80
[  193.075193][ T6336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  193.075214][ T6336] RIP: 0033:0x7f41b599c117
[  193.075230][ T6336] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  193.075250][ T6336] RSP: 002b:00007ffe93807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  193.075269][ T6336] RAX: 0000000000000000 RBX: 00007f41b5a0471f RCX: 00007f41b599c117
[  193.075283][ T6336] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe93807230
[  193.075296][ T6336] RBP: 00007ffe93807230 R08: 00007ffe93808230 R09: 00000000ffffffff
[  193.075309][ T6336] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe938082c0
[  193.075322][ T6336] R13: 00007f41b5a0471f R14: 000000000002f146 R15: 00007ffe93808300
[  193.075338][ T6336]  </TASK>
[  193.075345][ T6336] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  198.272887][ T5839] gfs2: fsid=syz:syz.0: file system withdrawn
2026/02/04 19:08:29 executed programs: 124
[  200.658738][ T7418] loop1: detected capacity change from 0 to 32768
[  200.680759][ T7421] loop2: detected capacity change from 0 to 32768
[  200.689042][ T7417] loop3: detected capacity change from 0 to 32768
[  200.692825][ T7419] loop0: detected capacity change from 0 to 32768
[  200.717679][ T7424] loop5: detected capacity change from 0 to 32768
[  200.725106][ T7417] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  200.738069][ T7426] loop4: detected capacity change from 0 to 32768
[  200.755063][ T7417] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  200.767834][ T7417] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  200.779111][ T7418] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  200.787827][ T7424] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  200.788058][ T7421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  200.804726][ T7418] CPU: 1 UID: 0 PID: 7418 Comm: syz.1.128 Not tainted syzkaller #0 PREEMPT(full) 
[  200.804753][ T7418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  200.804765][ T7418] Call Trace:
[  200.804770][ T7418]  <TASK>
[  200.804776][ T7418]  dump_stack_lvl+0x97/0xe0
[  200.804804][ T7418]  sysfs_warn_dup.cold+0x1c/0x28
[  200.804837][ T7418]  sysfs_create_dir_ns+0x129/0x140
[  200.804863][ T7418]  kobject_add_internal+0x104/0x310
[  200.804888][ T7418]  kobject_init_and_add+0xb2/0xf0
[  200.804915][ T7418]  ? alloc_workqueue_noprof+0xe0/0xb60
[  200.804943][ T7418]  gfs2_sys_fs_add+0xef/0x200
[  200.804973][ T7418]  gfs2_fill_super+0x896/0x1210
[  200.805007][ T7418]  ? sb_set_blocksize+0x8c/0x150
[  200.805031][ T7418]  ? setup_bdev_super+0x19d/0x330
[  200.805051][ T7418]  ? __pfx_gfs2_fill_super+0x10/0x10
[  200.805083][ T7418]  get_tree_bdev_flags+0x1c0/0x290
[  200.805111][ T7418]  gfs2_get_tree+0x26/0xd0
[  200.805139][ T7418]  vfs_get_tree+0x30/0x120
[  200.805158][ T7418]  path_mount+0x5a9/0x1350
[  200.805191][ T7418]  ? putname+0x78/0xe0
[  200.805220][ T7418]  __x64_sys_mount+0x1a3/0x1e0
[  200.805251][ T7418]  do_syscall_64+0xa4/0xf80
[  200.805284][ T7418]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  200.805306][ T7418] RIP: 0033:0x7fa046f9c14a
[  200.805322][ T7418] 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
[  200.805342][ T7418] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  200.805362][ T7418] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  200.805376][ T7418] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  200.805389][ T7418] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  200.805402][ T7418] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  200.805414][ T7418] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  200.805431][ T7418]  </TASK>
[  200.805599][ T7418] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  200.810486][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  200.815251][ T7419] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  200.830048][ T7427] loop6: detected capacity change from 0 to 32768
[  200.844792][ T7426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  200.855295][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  200.859681][ T7424] CPU: 1 UID: 0 PID: 7424 Comm: syz.5.132 Not tainted syzkaller #0 PREEMPT(full) 
[  200.859708][ T7424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  200.859720][ T7424] Call Trace:
[  200.859725][ T7424]  <TASK>
[  200.859731][ T7424]  dump_stack_lvl+0x97/0xe0
[  200.859758][ T7424]  sysfs_warn_dup.cold+0x1c/0x28
[  200.859790][ T7424]  sysfs_create_dir_ns+0x129/0x140
[  200.859817][ T7424]  kobject_add_internal+0x104/0x310
[  200.859842][ T7424]  kobject_init_and_add+0xb2/0xf0
[  200.859866][ T7424]  ? alloc_workqueue_noprof+0xe0/0xb60
[  200.859893][ T7424]  gfs2_sys_fs_add+0xef/0x200
[  200.859922][ T7424]  gfs2_fill_super+0x896/0x1210
[  200.859957][ T7424]  ? sb_set_blocksize+0x8c/0x150
[  200.859980][ T7424]  ? setup_bdev_super+0x19d/0x330
[  200.860001][ T7424]  ? __pfx_gfs2_fill_super+0x10/0x10
[  200.860035][ T7424]  get_tree_bdev_flags+0x1c0/0x290
[  200.860060][ T7424]  gfs2_get_tree+0x26/0xd0
[  200.860090][ T7424]  vfs_get_tree+0x30/0x120
[  200.860109][ T7424]  path_mount+0x5a9/0x1350
[  200.860140][ T7424]  ? putname+0x78/0xe0
[  200.860169][ T7424]  __x64_sys_mount+0x1a3/0x1e0
[  200.860200][ T7424]  do_syscall_64+0xa4/0xf80
[  200.860232][ T7424]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  200.860253][ T7424] RIP: 0033:0x7f6d7c39c14a
[  200.860268][ T7424] 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
[  200.860289][ T7424] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  200.860308][ T7424] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  200.860322][ T7424] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  200.860335][ T7424] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  200.860348][ T7424] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  200.860361][ T7424] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  200.860377][ T7424]  </TASK>
[  200.860386][ T7424] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  200.871775][ T7418] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  200.933610][ T7424] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  200.948488][ T7419] CPU: 0 UID: 0 PID: 7419 Comm: syz.0.127 Not tainted syzkaller #0 PREEMPT(full) 
[  200.948512][ T7419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  200.948523][ T7419] Call Trace:
[  200.948528][ T7419]  <TASK>
[  200.948535][ T7419]  dump_stack_lvl+0x97/0xe0
[  200.948563][ T7419]  sysfs_warn_dup.cold+0x1c/0x28
[  200.948596][ T7419]  sysfs_create_dir_ns+0x129/0x140
[  200.948623][ T7419]  kobject_add_internal+0x104/0x310
[  200.948648][ T7419]  kobject_init_and_add+0xb2/0xf0
[  200.948673][ T7419]  ? alloc_workqueue_noprof+0xe0/0xb60
[  200.948701][ T7419]  gfs2_sys_fs_add+0xef/0x200
[  200.948739][ T7419]  gfs2_fill_super+0x896/0x1210
[  200.948774][ T7419]  ? sb_set_blocksize+0x8c/0x150
[  200.948798][ T7419]  ? setup_bdev_super+0x19d/0x330
[  200.948820][ T7419]  ? __pfx_gfs2_fill_super+0x10/0x10
[  200.948853][ T7419]  get_tree_bdev_flags+0x1c0/0x290
[  200.948880][ T7419]  gfs2_get_tree+0x26/0xd0
[  200.948911][ T7419]  vfs_get_tree+0x30/0x120
[  200.948930][ T7419]  path_mount+0x5a9/0x1350
[  200.948961][ T7419]  ? putname+0x78/0xe0
[  200.948991][ T7419]  __x64_sys_mount+0x1a3/0x1e0
[  200.949023][ T7419]  do_syscall_64+0xa4/0xf80
[  200.949054][ T7419]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  200.949077][ T7419] RIP: 0033:0x7f41b599c14a
[  200.949092][ T7419] 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
[  200.949113][ T7419] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  200.949133][ T7419] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  200.949147][ T7419] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  200.949161][ T7419] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  200.949174][ T7419] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  200.949187][ T7419] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  200.949204][ T7419]  </TASK>
[  200.949213][ T7419] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  200.971770][ T7426] CPU: 1 UID: 0 PID: 7426 Comm: syz.4.131 Not tainted syzkaller #0 PREEMPT(full) 
[  200.971797][ T7426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  200.971810][ T7426] Call Trace:
[  200.971815][ T7426]  <TASK>
[  200.971821][ T7426]  dump_stack_lvl+0x97/0xe0
[  200.971848][ T7426]  sysfs_warn_dup.cold+0x1c/0x28
[  200.971880][ T7426]  sysfs_create_dir_ns+0x129/0x140
[  200.971906][ T7426]  kobject_add_internal+0x104/0x310
[  200.971931][ T7426]  kobject_init_and_add+0xb2/0xf0
[  200.971955][ T7426]  ? alloc_workqueue_noprof+0xe0/0xb60
[  200.971982][ T7426]  gfs2_sys_fs_add+0xef/0x200
[  200.972012][ T7426]  gfs2_fill_super+0x896/0x1210
[  200.972045][ T7426]  ? sb_set_blocksize+0x8c/0x150
[  200.972069][ T7426]  ? setup_bdev_super+0x19d/0x330
[  200.972090][ T7426]  ? __pfx_gfs2_fill_super+0x10/0x10
[  200.972122][ T7426]  get_tree_bdev_flags+0x1c0/0x290
[  200.972148][ T7426]  gfs2_get_tree+0x26/0xd0
[  200.972180][ T7426]  vfs_get_tree+0x30/0x120
[  200.972198][ T7426]  path_mount+0x5a9/0x1350
[  200.972230][ T7426]  ? putname+0x78/0xe0
[  200.972259][ T7426]  __x64_sys_mount+0x1a3/0x1e0
[  200.972290][ T7426]  do_syscall_64+0xa4/0xf80
[  200.972321][ T7426]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  200.972343][ T7426] RIP: 0033:0x7f9543b9c14a
[  200.972359][ T7426] 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
[  200.972379][ T7426] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  200.972398][ T7426] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  200.972412][ T7426] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  200.972425][ T7426] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  200.972439][ T7426] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  200.972452][ T7426] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  200.972475][ T7426]  </TASK>
[  200.972484][ T7426] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  200.983105][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 127ms
[  200.998566][ T7427] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  201.000111][ T7421] CPU: 0 UID: 0 PID: 7421 Comm: syz.2.129 Not tainted syzkaller #0 PREEMPT(full) 
[  201.000139][ T7421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  201.000153][ T7421] Call Trace:
[  201.000158][ T7421]  <TASK>
[  201.000165][ T7421]  dump_stack_lvl+0x97/0xe0
[  201.000193][ T7421]  sysfs_warn_dup.cold+0x1c/0x28
[  201.000225][ T7421]  sysfs_create_dir_ns+0x129/0x140
[  201.000252][ T7421]  kobject_add_internal+0x104/0x310
[  201.000276][ T7421]  kobject_init_and_add+0xb2/0xf0
[  201.000301][ T7421]  ? alloc_workqueue_noprof+0xe0/0xb60
[  201.000330][ T7421]  gfs2_sys_fs_add+0xef/0x200
[  201.000359][ T7421]  gfs2_fill_super+0x896/0x1210
[  201.000394][ T7421]  ? sb_set_blocksize+0x8c/0x150
[  201.000418][ T7421]  ? setup_bdev_super+0x19d/0x330
[  201.000440][ T7421]  ? __pfx_gfs2_fill_super+0x10/0x10
[  201.000472][ T7421]  get_tree_bdev_flags+0x1c0/0x290
[  201.000499][ T7421]  gfs2_get_tree+0x26/0xd0
[  201.000530][ T7421]  vfs_get_tree+0x30/0x120
[  201.000548][ T7421]  path_mount+0x5a9/0x1350
[  201.000579][ T7421]  ? putname+0x78/0xe0
[  201.000609][ T7421]  __x64_sys_mount+0x1a3/0x1e0
[  201.000641][ T7421]  do_syscall_64+0xa4/0xf80
[  201.000673][ T7421]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  201.000695][ T7421] RIP: 0033:0x7f808a39c14a
[  201.000716][ T7421] 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
[  201.000736][ T7421] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  201.000755][ T7421] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  201.000770][ T7421] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  201.000783][ T7421] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  201.000796][ T7421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  201.000810][ T7421] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  201.000826][ T7421]  </TASK>
[  201.000834][ T7421] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  201.013995][ T7427] CPU: 1 UID: 0 PID: 7427 Comm: syz.6.133 Not tainted syzkaller #0 PREEMPT(full) 
[  201.014021][ T7427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  201.014033][ T7427] Call Trace:
[  201.014038][ T7427]  <TASK>
[  201.014044][ T7427]  dump_stack_lvl+0x97/0xe0
[  201.014069][ T7427]  sysfs_warn_dup.cold+0x1c/0x28
[  201.014099][ T7427]  sysfs_create_dir_ns+0x129/0x140
[  201.014125][ T7427]  kobject_add_internal+0x104/0x310
[  201.014149][ T7427]  kobject_init_and_add+0xb2/0xf0
[  201.014173][ T7427]  ? alloc_workqueue_noprof+0xe0/0xb60
[  201.014199][ T7427]  gfs2_sys_fs_add+0xef/0x200
[  201.014228][ T7427]  gfs2_fill_super+0x896/0x1210
[  201.014261][ T7427]  ? sb_set_blocksize+0x8c/0x150
[  201.014283][ T7427]  ? setup_bdev_super+0x19d/0x330
[  201.014304][ T7427]  ? __pfx_gfs2_fill_super+0x10/0x10
[  201.014337][ T7427]  get_tree_bdev_flags+0x1c0/0x290
[  201.014362][ T7427]  gfs2_get_tree+0x26/0xd0
[  201.014392][ T7427]  vfs_get_tree+0x30/0x120
[  201.014411][ T7427]  path_mount+0x5a9/0x1350
[  201.014441][ T7427]  ? putname+0x78/0xe0
[  201.014476][ T7427]  __x64_sys_mount+0x1a3/0x1e0
[  201.014508][ T7427]  do_syscall_64+0xa4/0xf80
[  201.014539][ T7427]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  201.014560][ T7427] RIP: 0033:0x7fc30eb9c14a
[  201.014574][ T7427] 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
[  201.014594][ T7427] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  201.014613][ T7427] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  201.014627][ T7427] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  201.014640][ T7427] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  201.014653][ T7427] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  201.014666][ T7427] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  201.014682][ T7427]  </TASK>
[  201.014690][ T7427] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  201.027480][ T7426] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  201.028068][ T7427] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  201.071733][ T7421] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  201.101788][ T7419] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  201.108265][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  201.532029][ T7451] loop1: detected capacity change from 0 to 32768
[  201.581131][ T7448] loop6: detected capacity change from 0 to 32768
[  201.659362][ T7453] loop0: detected capacity change from 0 to 32768
[  201.838322][ T7417] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  202.113795][ T7451] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.130066][ T7448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.141756][ T7451] CPU: 0 UID: 0 PID: 7451 Comm: syz.1.136 Not tainted syzkaller #0 PREEMPT(full) 
[  202.141782][ T7451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.141794][ T7451] Call Trace:
[  202.141799][ T7451]  <TASK>
[  202.141805][ T7451]  dump_stack_lvl+0x97/0xe0
[  202.141833][ T7451]  sysfs_warn_dup.cold+0x1c/0x28
[  202.141864][ T7451]  sysfs_create_dir_ns+0x129/0x140
[  202.141891][ T7451]  kobject_add_internal+0x104/0x310
[  202.141915][ T7451]  kobject_init_and_add+0xb2/0xf0
[  202.141940][ T7451]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.141967][ T7451]  gfs2_sys_fs_add+0xef/0x200
[  202.141996][ T7451]  gfs2_fill_super+0x896/0x1210
[  202.142030][ T7451]  ? sb_set_blocksize+0x8c/0x150
[  202.142055][ T7451]  ? setup_bdev_super+0x19d/0x330
[  202.142076][ T7451]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.142109][ T7451]  get_tree_bdev_flags+0x1c0/0x290
[  202.142135][ T7451]  gfs2_get_tree+0x26/0xd0
[  202.142165][ T7451]  vfs_get_tree+0x30/0x120
[  202.142183][ T7451]  path_mount+0x5a9/0x1350
[  202.142214][ T7451]  ? putname+0x78/0xe0
[  202.142243][ T7451]  __x64_sys_mount+0x1a3/0x1e0
[  202.142274][ T7451]  do_syscall_64+0xa4/0xf80
[  202.142306][ T7451]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.142328][ T7451] RIP: 0033:0x7fa046f9c14a
[  202.142343][ T7451] 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
[  202.142364][ T7451] RSP: 002b:00007fa047e5be58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.142388][ T7451] RAX: ffffffffffffffda RBX: 00007fa047e5bee0 RCX: 00007fa046f9c14a
[  202.142402][ T7451] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fa047e5bea0
[  202.142415][ T7451] RBP: 00002000000124c0 R08: 00007fa047e5bee0 R09: 0000000000000000
[  202.142429][ T7451] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.142442][ T7451] R13: 00007fa047e5bea0 R14: 0000000000012588 R15: 0000200000000000
[  202.142458][ T7451]  </TASK>
[  202.142467][ T7451] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.144871][ T7453] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.149564][ T7451] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  202.155015][ T7449] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.185103][ T7417] gfs2: fsid=syz:syz.0: found 1 quota changes
[  202.189015][ T7456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.206320][ T7448] CPU: 0 UID: 0 PID: 7448 Comm: syz.6.135 Not tainted syzkaller #0 PREEMPT(full) 
[  202.206346][ T7448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.206359][ T7448] Call Trace:
[  202.206364][ T7448]  <TASK>
[  202.206371][ T7448]  dump_stack_lvl+0x97/0xe0
[  202.206405][ T7448]  sysfs_warn_dup.cold+0x1c/0x28
[  202.206437][ T7448]  sysfs_create_dir_ns+0x129/0x140
[  202.206464][ T7448]  kobject_add_internal+0x104/0x310
[  202.206489][ T7448]  kobject_init_and_add+0xb2/0xf0
[  202.206513][ T7448]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.206545][ T7448]  gfs2_sys_fs_add+0xef/0x200
[  202.206574][ T7448]  gfs2_fill_super+0x896/0x1210
[  202.206608][ T7448]  ? sb_set_blocksize+0x8c/0x150
[  202.206631][ T7448]  ? setup_bdev_super+0x19d/0x330
[  202.206652][ T7448]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.206685][ T7448]  get_tree_bdev_flags+0x1c0/0x290
[  202.206711][ T7448]  gfs2_get_tree+0x26/0xd0
[  202.206741][ T7448]  vfs_get_tree+0x30/0x120
[  202.206760][ T7448]  path_mount+0x5a9/0x1350
[  202.206791][ T7448]  ? putname+0x78/0xe0
[  202.206820][ T7448]  __x64_sys_mount+0x1a3/0x1e0
[  202.206852][ T7448]  do_syscall_64+0xa4/0xf80
[  202.206883][ T7448]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.206905][ T7448] RIP: 0033:0x7fc30eb9c14a
[  202.206920][ T7448] 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
[  202.206941][ T7448] RSP: 002b:00007fc30fa11e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.206960][ T7448] RAX: ffffffffffffffda RBX: 00007fc30fa11ee0 RCX: 00007fc30eb9c14a
[  202.206974][ T7448] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fc30fa11ea0
[  202.206987][ T7448] RBP: 00002000000124c0 R08: 00007fc30fa11ee0 R09: 0000000000000000
[  202.207000][ T7448] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.207013][ T7448] R13: 00007fc30fa11ea0 R14: 0000000000012588 R15: 0000200000000000
[  202.207029][ T7448]  </TASK>
[  202.207066][ T7448] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.212642][ T7457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  202.218513][ T7456] CPU: 0 UID: 0 PID: 7456 Comm: syz.4.138 Not tainted syzkaller #0 PREEMPT(full) 
[  202.218540][ T7456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.218552][ T7456] Call Trace:
[  202.218558][ T7456]  <TASK>
[  202.218564][ T7456]  dump_stack_lvl+0x97/0xe0
[  202.218591][ T7456]  sysfs_warn_dup.cold+0x1c/0x28
[  202.218623][ T7456]  sysfs_create_dir_ns+0x129/0x140
[  202.218648][ T7456]  kobject_add_internal+0x104/0x310
[  202.218673][ T7456]  kobject_init_and_add+0xb2/0xf0
[  202.218697][ T7456]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.218725][ T7456]  gfs2_sys_fs_add+0xef/0x200
[  202.218754][ T7456]  gfs2_fill_super+0x896/0x1210
[  202.218787][ T7456]  ? sb_set_blocksize+0x8c/0x150
[  202.218811][ T7456]  ? setup_bdev_super+0x19d/0x330
[  202.218832][ T7456]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.218865][ T7456]  get_tree_bdev_flags+0x1c0/0x290
[  202.218894][ T7456]  gfs2_get_tree+0x26/0xd0
[  202.218924][ T7456]  vfs_get_tree+0x30/0x120
[  202.218943][ T7456]  path_mount+0x5a9/0x1350
[  202.218978][ T7456]  ? putname+0x78/0xe0
[  202.219008][ T7456]  __x64_sys_mount+0x1a3/0x1e0
[  202.219039][ T7456]  do_syscall_64+0xa4/0xf80
[  202.219071][ T7456]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.219093][ T7456] RIP: 0033:0x7f9543b9c14a
[  202.219108][ T7456] 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
[  202.219129][ T7456] RSP: 002b:00007f95449e5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.219151][ T7456] RAX: ffffffffffffffda RBX: 00007f95449e5ee0 RCX: 00007f9543b9c14a
[  202.219165][ T7456] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f95449e5ea0
[  202.219182][ T7456] RBP: 00002000000124c0 R08: 00007f95449e5ee0 R09: 0000000000000000
[  202.219195][ T7456] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.219208][ T7456] R13: 00007f95449e5ea0 R14: 0000000000012588 R15: 0000200000000000
[  202.219225][ T7456]  </TASK>
[  202.219234][ T7456] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.221072][ T7457] CPU: 1 UID: 0 PID: 7457 Comm: syz.2.139 Not tainted syzkaller #0 PREEMPT(full) 
[  202.221099][ T7457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.221111][ T7457] Call Trace:
[  202.221116][ T7457]  <TASK>
[  202.221123][ T7457]  dump_stack_lvl+0x97/0xe0
[  202.221147][ T7457]  sysfs_warn_dup.cold+0x1c/0x28
[  202.221179][ T7457]  sysfs_create_dir_ns+0x129/0x140
[  202.221206][ T7457]  kobject_add_internal+0x104/0x310
[  202.221231][ T7457]  kobject_init_and_add+0xb2/0xf0
[  202.221256][ T7457]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.221285][ T7457]  gfs2_sys_fs_add+0xef/0x200
[  202.221314][ T7457]  gfs2_fill_super+0x896/0x1210
[  202.221349][ T7457]  ? sb_set_blocksize+0x8c/0x150
[  202.221373][ T7457]  ? setup_bdev_super+0x19d/0x330
[  202.221395][ T7457]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.221430][ T7457]  get_tree_bdev_flags+0x1c0/0x290
[  202.221458][ T7457]  gfs2_get_tree+0x26/0xd0
[  202.221490][ T7457]  vfs_get_tree+0x30/0x120
[  202.221509][ T7457]  path_mount+0x5a9/0x1350
[  202.221541][ T7457]  ? putname+0x78/0xe0
[  202.221572][ T7457]  __x64_sys_mount+0x1a3/0x1e0
[  202.221604][ T7457]  do_syscall_64+0xa4/0xf80
[  202.221644][ T7457]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.221666][ T7457] RIP: 0033:0x7f808a39c14a
[  202.221685][ T7457] 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
[  202.221706][ T7457] RSP: 002b:00007f808b18de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.221725][ T7457] RAX: ffffffffffffffda RBX: 00007f808b18dee0 RCX: 00007f808a39c14a
[  202.221740][ T7457] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f808b18dea0
[  202.221755][ T7457] RBP: 00002000000124c0 R08: 00007f808b18dee0 R09: 0000000000000000
[  202.221768][ T7457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.221782][ T7457] R13: 00007f808b18dea0 R14: 0000000000012588 R15: 0000200000000000
[  202.221799][ T7457]  </TASK>
[  202.222123][ T7457] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.224035][ T7449] CPU: 0 UID: 0 PID: 7449 Comm: syz.5.134 Not tainted syzkaller #0 PREEMPT(full) 
[  202.224060][ T7449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.224071][ T7449] Call Trace:
[  202.224076][ T7449]  <TASK>
[  202.224083][ T7449]  dump_stack_lvl+0x97/0xe0
[  202.224107][ T7449]  sysfs_warn_dup.cold+0x1c/0x28
[  202.224137][ T7449]  sysfs_create_dir_ns+0x129/0x140
[  202.224163][ T7449]  kobject_add_internal+0x104/0x310
[  202.224187][ T7449]  kobject_init_and_add+0xb2/0xf0
[  202.224210][ T7449]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.224237][ T7449]  gfs2_sys_fs_add+0xef/0x200
[  202.224266][ T7449]  gfs2_fill_super+0x896/0x1210
[  202.224299][ T7449]  ? sb_set_blocksize+0x8c/0x150
[  202.224323][ T7449]  ? setup_bdev_super+0x19d/0x330
[  202.224344][ T7449]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.224414][ T7449]  get_tree_bdev_flags+0x1c0/0x290
[  202.224441][ T7449]  gfs2_get_tree+0x26/0xd0
[  202.224472][ T7449]  vfs_get_tree+0x30/0x120
[  202.224491][ T7449]  path_mount+0x5a9/0x1350
[  202.224521][ T7449]  ? putname+0x78/0xe0
[  202.224551][ T7449]  __x64_sys_mount+0x1a3/0x1e0
[  202.224584][ T7449]  do_syscall_64+0xa4/0xf80
[  202.224615][ T7449]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.224636][ T7449] RIP: 0033:0x7f6d7c39c14a
[  202.224651][ T7449] 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
[  202.224671][ T7449] RSP: 002b:00007f6d7d313e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.224690][ T7449] RAX: ffffffffffffffda RBX: 00007f6d7d313ee0 RCX: 00007f6d7c39c14a
[  202.224704][ T7449] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f6d7d313ea0
[  202.224718][ T7449] RBP: 00002000000124c0 R08: 00007f6d7d313ee0 R09: 0000000000000000
[  202.224731][ T7449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.224745][ T7449] R13: 00007f6d7d313ea0 R14: 0000000000012588 R15: 0000200000000000
[  202.224761][ T7449]  </TASK>
[  202.224770][ T7449] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.228323][ T7457] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  202.238790][ T7453] CPU: 0 UID: 0 PID: 7453 Comm: syz.0.137 Not tainted syzkaller #0 PREEMPT(full) 
[  202.238816][ T7453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.238828][ T7453] Call Trace:
[  202.238834][ T7453]  <TASK>
[  202.238839][ T7453]  dump_stack_lvl+0x97/0xe0
[  202.238865][ T7453]  sysfs_warn_dup.cold+0x1c/0x28
[  202.238897][ T7453]  sysfs_create_dir_ns+0x129/0x140
[  202.238923][ T7453]  kobject_add_internal+0x104/0x310
[  202.238947][ T7453]  kobject_init_and_add+0xb2/0xf0
[  202.238971][ T7453]  ? alloc_workqueue_noprof+0xe0/0xb60
[  202.238999][ T7453]  gfs2_sys_fs_add+0xef/0x200
[  202.239028][ T7453]  gfs2_fill_super+0x896/0x1210
[  202.239061][ T7453]  ? sb_set_blocksize+0x8c/0x150
[  202.239084][ T7453]  ? setup_bdev_super+0x19d/0x330
[  202.239105][ T7453]  ? __pfx_gfs2_fill_super+0x10/0x10
[  202.239138][ T7453]  get_tree_bdev_flags+0x1c0/0x290
[  202.239164][ T7453]  gfs2_get_tree+0x26/0xd0
[  202.239195][ T7453]  vfs_get_tree+0x30/0x120
[  202.239213][ T7453]  path_mount+0x5a9/0x1350
[  202.239244][ T7453]  ? putname+0x78/0xe0
[  202.239274][ T7453]  __x64_sys_mount+0x1a3/0x1e0
[  202.239305][ T7453]  do_syscall_64+0xa4/0xf80
[  202.239337][ T7453]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  202.239358][ T7453] RIP: 0033:0x7f41b599c14a
[  202.239379][ T7453] 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
[  202.239400][ T7453] RSP: 002b:00007f41b6859e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  202.239419][ T7453] RAX: ffffffffffffffda RBX: 00007f41b6859ee0 RCX: 00007f41b599c14a
[  202.239433][ T7453] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f41b6859ea0
[  202.239447][ T7453] RBP: 00002000000124c0 R08: 00007f41b6859ee0 R09: 0000000000000000
[  202.239460][ T7453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[  202.239473][ T7453] R13: 00007f41b6859ea0 R14: 0000000000012588 R15: 0000200000000000
[  202.239489][ T7453]  </TASK>
[  202.239498][ T7453] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  202.251782][ T7456] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  202.254073][ T7470] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 11 2339, function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 398
[  202.263179][ T7448] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  202.268379][ T6344] syz-executor: attempt to access beyond end of device
[  202.268379][ T6344] loop3: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  202.279032][ T7453] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  202.279075][ T7470] gfs2: fsid=syz:syz.0: G:  s:EX n:2/923 f:aqonN t:EX d:EX/0 a:0 v:0 r:2 m:20 p:1
[  202.279110][ T7470] gfs2: fsid=syz:syz.0:  H: s:EX f:H e:0 p:7470 [gfs2_quotad/syz] gfs2_quota_sync+0x1da/0x330
[  202.279154][ T7470] gfs2: fsid=syz:syz.0:  I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
[  202.279180][ T7470] CPU: 1 UID: 0 PID: 7470 Comm: gfs2_quotad/syz Not tainted syzkaller #0 PREEMPT(full) 
[  202.279205][ T7470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  202.279217][ T7470] Call Trace:
[  202.279223][ T7470]  <TASK>
[  202.279230][ T7470]  dump_stack_lvl+0x97/0xe0
[  202.279255][ T7470]  gfs2_withdraw.cold+0xa/0x77
[  202.279276][ T7470]  inode_go_instantiate+0x498/0x560
[  202.279309][ T7470]  gfs2_instantiate+0xa7/0x130
[  202.279332][ T7470]  gfs2_glock_wait+0x100/0x140
[  202.279358][ T7470]  gfs2_glock_nq+0x60e/0x9d0
[  202.279386][ T7470]  ? gfs2_flush_delete_work+0x40/0x160
[  202.279412][ T7470]  do_sync+0x3d3/0x760
[  202.279438][ T7470]  ? gfs2_quota_sync+0x1da/0x330
[  202.279464][ T7470]  gfs2_quota_sync+0x1da/0x330
[  202.279491][ T7470]  gfs2_quotad+0x32a/0x3a0
[  202.279517][ T7470]  ? __pfx_gfs2_quotad+0x10/0x10
[  202.279544][ T7470]  ? __pfx_gfs2_quotad+0x10/0x10
[  202.279571][ T7470]  kthread+0x161/0x310
[  202.279594][ T7470]  ? __pfx_kthread+0x10/0x10
[  202.279617][ T7470]  ret_from_fork+0x23c/0x320
[  202.279651][ T7470]  ? __pfx_kthread+0x10/0x10
[  202.279675][ T7470]  ret_from_fork_asm+0x1a/0x30
[  202.279705][ T7470]  </TASK>
[  202.279712][ T7470] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  202.361810][ T6344] Buffer I/O error on dev loop3, logical block 8589934885, lost async page write
[  202.374512][ T7449] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  205.311986][ T5138] Bluetooth: hci2: command 0x0406 tx timeout
[  205.318120][ T6358] Bluetooth: hci0: command 0x0406 tx timeout
[  205.318305][ T7475] Bluetooth: hci3: command 0x0406 tx timeout
[  205.324123][ T5138] Bluetooth: hci5: command 0x0406 tx timeout
[  205.330199][ T7475] Bluetooth: hci4: command 0x0406 tx timeout
[  205.336056][ T5862] Bluetooth: hci1: command 0x0406 tx timeout
[  205.342070][ T7477] Bluetooth: hci6: command 0x0406 tx timeout
[  207.552004][ T6344] gfs2: fsid=syz:syz.0: warning: assertion "gfs2_log_is_empty(sdp)" failed - function = gfs2_make_fs_ro, file = fs/gfs2/super.c, line = 566
[  207.566851][ T6344] CPU: 0 UID: 0 PID: 6344 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  207.566879][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  207.566891][ T6344] Call Trace:
[  207.566897][ T6344]  <TASK>
[  207.566903][ T6344]  dump_stack_lvl+0x97/0xe0
[  207.566932][ T6344]  gfs2_assert_warn_i.cold+0x38/0x94
[  207.566954][ T6344]  gfs2_make_fs_ro+0x13d/0x220
[  207.566976][ T6344]  ? __pfx_autoremove_wake_function+0x10/0x10
[  207.567011][ T6344]  gfs2_put_super+0xb4/0x2d0
[  207.567032][ T6344]  ? __pfx_gfs2_put_super+0x10/0x10
[  207.567053][ T6344]  generic_shutdown_super+0x9c/0x160
[  207.567076][ T6344]  kill_block_super+0x1d/0x50
[  207.567097][ T6344]  gfs2_kill_sb+0x1b6/0x1e0
[  207.567129][ T6344]  deactivate_locked_super+0x4f/0x120
[  207.567153][ T6344]  deactivate_super+0xa4/0xc0
[  207.567177][ T6344]  cleanup_mnt+0x145/0x1f0
[  207.567202][ T6344]  task_work_run+0x95/0xf0
[  207.567233][ T6344]  exit_to_user_mode_loop+0xcf/0x440
[  207.567269][ T6344]  do_syscall_64+0x2b8/0xf80
[  207.567301][ T6344]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  207.567323][ T6344] RIP: 0033:0x7f1c4f59c117
[  207.567338][ T6344] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  207.567356][ T6344] RSP: 002b:00007ffe6d36d1a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  207.567376][ T6344] RAX: 0000000000000000 RBX: 00007f1c4f60471f RCX: 00007f1c4f59c117
[  207.567390][ T6344] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6d36d260
[  207.567403][ T6344] RBP: 00007ffe6d36d260 R08: 00007ffe6d36e260 R09: 00000000ffffffff
[  207.567416][ T6344] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6d36e2f0
[  207.567429][ T6344] R13: 00007f1c4f60471f R14: 0000000000030ea6 R15: 00007ffe6d36e330
[  207.567447][ T6344]  </TASK>
[  207.860724][ T7483] set_capacity_and_notify: 3 callbacks suppressed
[  207.860734][ T7483] loop3: detected capacity change from 0 to 32768
[  207.879642][ T7483] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  207.888337][ T7483] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  207.897242][ T7483] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[  207.906099][ T6543] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  207.912894][ T6543] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  207.923118][ T6543] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 10ms
[  207.930553][ T6543] gfs2: fsid=syz:syz.0: jid=0: Done
[  207.935884][ T7483] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  207.961955][ T7483] gfs2: fsid=syz:syz.0: found 1 quota changes
[  207.970355][ T6344] syz-executor: attempt to access beyond end of device
[  207.970355][ T6344] loop3: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[  207.985820][ T6344] Buffer I/O error on dev loop3, logical block 8589934885, lost async page write
[  207.995101][ T6344] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[  208.008453][ T6344] CPU: 1 UID: 0 PID: 6344 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  208.008468][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[  208.008476][ T6344] Call Trace:
[  208.008479][ T6344]  <TASK>
[  208.008483][ T6344]  dump_stack_lvl+0x97/0xe0
[  208.008500][ T6344]  gfs2_withdraw.cold+0xa/0x77
[  208.008513][ T6344]  gfs2_io_error_bh_i.cold+0x2d/0x32
[  208.008525][ T6344]  gfs2_ail1_flush+0x497/0x7e0
[  208.008546][ T6344]  gfs2_ail1_start+0x4f/0x80
[  208.008568][ T6344]  gfs2_log_flush+0xf95/0x1170
[  208.008580][ T6344]  gfs2_kill_sb+0x3e/0x1e0
[  208.008597][ T6344]  deactivate_locked_super+0x4f/0x120
[  208.008612][ T6344]  deactivate_super+0xa4/0xc0
[  208.008624][ T6344]  cleanup_mnt+0x145/0x1f0
[  208.008639][ T6344]  task_work_run+0x95/0xf0
[  208.008656][ T6344]  exit_to_user_mode_loop+0xcf/0x440
[  208.008672][ T6344]  do_syscall_64+0x2b8/0xf80
[  208.008691][ T6344]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  208.008704][ T6344] RIP: 0033:0x7f1c4f59c117
[  208.008714][ T6344] Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  208.008726][ T6344] RSP: 002b:00007ffe6d36d1a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  208.008738][ T6344] RAX: 0000000000000000 RBX: 00007f1c4f60471f RCX: 00007f1c4f59c117
[  208.008745][ T6344] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6d36d260
[  208.008752][ T6344] RBP: 00007ffe6d36d260 R08: 00007ffe6d36e260 R09: 00000000ffffffff
[  208.008760][ T6344] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6d36e2f0
[  208.008767][ T6344] R13: 00007f1c4f60471f R14: 0000000000032ba8 R15: 00007ffe6d36e330
[  208.008776][ T6344]  </TASK>
[  208.008780][ T6344] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  213.232720][ T6543] gfs2: fsid=syz:syz.0: file system withdrawn
[  215.276944][ T6227] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88812f712360 (size 144):
  comm "syz.3.130", pid 7417, jiffies 4294957464
  hex dump (first 32 bytes):
    fa 02 7a 82 ff ff ff ff 05 00 00 00 00 00 00 00  ..z.............
    0b 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00  ................
  backtrace (crc 643c8b36):
    kmem_cache_alloc_noprof+0x412/0x580
    gfs2_trans_begin+0x29/0xa0
    gfs2_create_inode+0xbfa/0x17f0
    gfs2_atomic_open+0x96/0x190
    path_openat+0x158f/0x20f0
    do_filp_open+0x104/0x1f0
    do_sys_openat2+0xcb/0x180
    __x64_sys_open+0x7e/0xf0
    do_syscall_64+0xa4/0xf80
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF
[  218.263959][ T4192] netdevsim netdevsim6 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.362998][ T4192] netdevsim netdevsim6 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.423142][ T4192] netdevsim netdevsim6 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.463122][ T4192] netdevsim netdevsim6 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.546629][ T4192] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.583163][ T4192] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.636457][ T4192] netdevsim netdevsim3 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.673195][ T4192] netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  218.742440][ T4192] bridge_slave_1: left allmulticast mode
[  218.748109][ T4192] bridge_slave_1: left promiscuous mode
[  218.754242][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  218.762913][ T4192] bridge_slave_0: left allmulticast mode
[  218.768565][ T4192] bridge_slave_0: left promiscuous mode
[  218.774340][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  218.782434][ T4192] bridge_slave_1: left allmulticast mode
[  218.789222][ T4192] bridge_slave_1: left promiscuous mode
[  218.795063][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  218.803224][ T4192] bridge_slave_0: left allmulticast mode
[  218.811753][ T4192] bridge_slave_0: left promiscuous mode
[  218.817403][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  218.874005][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  218.883173][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  218.892251][ T4192] bond0 (unregistering): Released all slaves
[  218.922556][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  218.931595][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  218.940605][ T4192] bond0 (unregistering): Released all slaves
[  219.167909][ T4192] hsr_slave_0: left promiscuous mode
[  219.173877][ T4192] hsr_slave_1: left promiscuous mode
[  219.179493][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  219.187555][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  219.195169][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  219.202550][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  219.210758][ T4192] hsr_slave_0: left promiscuous mode
[  219.216406][ T4192] hsr_slave_1: left promiscuous mode
[  219.222013][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  219.229371][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  219.236760][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  219.244244][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  219.253436][ T4192] veth1_macvtap: left promiscuous mode
[  219.258896][ T4192] veth0_macvtap: left promiscuous mode
[  219.264510][ T4192] veth1_vlan: left promiscuous mode
[  219.270092][ T4192] veth0_vlan: left promiscuous mode
[  219.275611][ T4192] veth1_macvtap: left promiscuous mode
[  219.281076][ T4192] veth0_macvtap: left promiscuous mode
[  219.286583][ T4192] veth1_vlan: left promiscuous mode
[  219.291884][ T4192] veth0_vlan: left promiscuous mode
[  219.327726][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  219.337537][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  219.358822][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  219.366819][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  219.755172][ T4192] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  219.822790][ T4192] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  219.882853][ T4192] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  219.947089][ T4192] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  219.984699][ T4192] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.034391][ T4192] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.063529][ T4192] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.103857][ T4192] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.149681][ T4192] netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.213738][ T4192] netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.233625][ T4192] netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.275655][ T4192] netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.338185][ T4192] netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.383489][ T4192] netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.434402][ T4192] netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.493130][ T4192] netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.556966][ T4192] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.573913][ T4192] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.614030][ T4192] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.663045][ T4192] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  220.736289][ T4192] bridge_slave_1: left allmulticast mode
[  220.749106][ T4192] bridge_slave_1: left promiscuous mode
[  220.754939][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  220.762939][ T4192] bridge_slave_0: left allmulticast mode
[  220.768584][ T4192] bridge_slave_0: left promiscuous mode
[  220.774536][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  220.782502][ T4192] bridge_slave_1: left allmulticast mode
[  220.788149][ T4192] bridge_slave_1: left promiscuous mode
[  220.794208][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  220.801838][ T4192] bridge_slave_0: left allmulticast mode
[  220.807898][ T4192] bridge_slave_0: left promiscuous mode
[  220.813643][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  220.821201][ T4192] bridge_slave_1: left allmulticast mode
[  220.826978][ T4192] bridge_slave_1: left promiscuous mode
[  220.832698][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  220.840061][ T4192] bridge_slave_0: left allmulticast mode
[  220.845800][ T4192] bridge_slave_0: left promiscuous mode
[  220.851389][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  220.859084][ T4192] bridge_slave_1: left allmulticast mode
[  220.864779][ T4192] bridge_slave_1: left promiscuous mode
[  220.870345][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  220.877793][ T4192] bridge_slave_0: left allmulticast mode
[  220.883464][ T4192] bridge_slave_0: left promiscuous mode
[  220.889052][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  220.896666][ T4192] bridge_slave_1: left allmulticast mode
[  220.902329][ T4192] bridge_slave_1: left promiscuous mode
[  220.908184][ T4192] bridge0: port 2(bridge_slave_1) entered disabled state
[  220.915692][ T4192] bridge_slave_0: left allmulticast mode
[  220.921317][ T4192] bridge_slave_0: left promiscuous mode
[  220.926997][ T4192] bridge0: port 1(bridge_slave_0) entered disabled state
[  221.014340][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  221.023472][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  221.032442][ T4192] bond0 (unregistering): Released all slaves
[  221.072796][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  221.081937][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  221.090888][ T4192] bond0 (unregistering): Released all slaves
[  221.133414][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  221.142921][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  221.151961][ T4192] bond0 (unregistering): Released all slaves
[  221.192547][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  221.201538][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  221.210511][ T4192] bond0 (unregistering): Released all slaves
[  221.244070][ T4192] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  221.253101][ T4192] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  221.262091][ T4192] bond0 (unregistering): Released all slaves
[  221.604517][ T4192] hsr_slave_0: left promiscuous mode
[  221.609937][ T4192] hsr_slave_1: left promiscuous mode
[  221.615840][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  221.623505][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  221.630911][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  221.638425][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  221.646872][ T4192] hsr_slave_0: left promiscuous mode
[  221.652333][ T4192] hsr_slave_1: left promiscuous mode
[  221.657741][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  221.665137][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  221.672435][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  221.679789][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  221.688101][ T4192] hsr_slave_0: left promiscuous mode
[  221.693663][ T4192] hsr_slave_1: left promiscuous mode
[  221.699136][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  221.706581][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  221.713886][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  221.721325][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  221.729554][ T4192] hsr_slave_0: left promiscuous mode
[  221.734997][ T4192] hsr_slave_1: left promiscuous mode
[  221.740375][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  221.747765][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  221.755443][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  221.762843][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  221.770937][ T4192] hsr_slave_0: left promiscuous mode
[  221.776408][ T4192] hsr_slave_1: left promiscuous mode
[  221.781962][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  221.789319][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_0
[  221.796639][ T4192] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  221.804066][ T4192] batman_adv: batadv0: Removing interface: batadv_slave_1
[  221.815413][ T4192] veth1_macvtap: left promiscuous mode
[  221.820873][ T4192] veth0_macvtap: left promiscuous mode
[  221.826385][ T4192] veth1_vlan: left promiscuous mode
[  221.831593][ T4192] veth0_vlan: left promiscuous mode
[  221.837104][ T4192] veth1_macvtap: left promiscuous mode
[  221.842818][ T4192] veth0_macvtap: left promiscuous mode
[  221.848282][ T4192] veth1_vlan: left promiscuous mode
[  221.853506][ T4192] veth0_vlan: left promiscuous mode
[  221.858945][ T4192] veth1_macvtap: left promiscuous mode
[  221.864434][ T4192] veth0_macvtap: left promiscuous mode
[  221.869907][ T4192] veth1_vlan: left promiscuous mode
[  221.875171][ T4192] veth0_vlan: left promiscuous mode
[  221.880690][ T4192] veth1_macvtap: left promiscuous mode
[  221.886154][ T4192] veth0_macvtap: left promiscuous mode
[  221.891623][ T4192] veth1_vlan: left promiscuous mode
[  221.897159][ T4192] veth0_vlan: left promiscuous mode
[  221.902716][ T4192] veth1_macvtap: left promiscuous mode
[  221.908164][ T4192] veth0_macvtap: left promiscuous mode
[  221.913647][ T4192] veth1_vlan: left promiscuous mode
[  221.918843][ T4192] veth0_vlan: left promiscuous mode
[  221.987664][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  221.997665][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  222.018209][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  222.027043][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  222.047980][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  222.058867][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  222.081075][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  222.089018][ T4192] team0 (unregistering): Port device team_slave_0 removed
[  222.111621][ T4192] team0 (unregistering): Port device team_slave_1 removed
[  222.123404][ T4192] team0 (unregistering): Port device team_slave_0 removed