[ T6616]  ? __init_swait_queue_head+0xa9/0x150
[  227.548385][ T6616]  gfs2_sys_fs_add+0x234/0x450
[  227.548408][ T6616]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.548432][ T6616]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.548455][ T6616]  gfs2_fill_super+0x13c0/0x20d0
[  227.548478][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.548496][ T6616]  ? sb_set_blocksize+0x104/0x180
[  227.548515][ T6616]  ? setup_bdev_super+0x4c1/0x5b0
[  227.548535][ T6616]  get_tree_bdev_flags+0x40e/0x4d0
[  227.548553][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.548570][ T6616]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.548591][ T6616]  gfs2_get_tree+0x51/0x1e0
[  227.548610][ T6616]  vfs_get_tree+0x92/0x2b0
[  227.548628][ T6616]  do_new_mount+0x2a2/0xa30
[  227.548650][ T6616]  ? ns_capable+0x8a/0xf0
[  227.548670][ T6616]  ? __pfx_do_new_mount+0x10/0x10
[  227.548689][ T6616]  ? path_mount+0x61c/0xfe0
[  227.548705][ T6616]  ? user_path_at+0x44/0x60
[  227.548723][ T6616]  __se_sys_mount+0x317/0x410
[  227.548745][ T6616]  ? __pfx___se_sys_mount+0x10/0x10
[  227.548767][ T6616]  ? rcu_is_watching+0x15/0xb0
[  227.548789][ T6616]  ? __x64_sys_mount+0x20/0xc0
[  227.548809][ T6616]  do_syscall_64+0xfa/0xfa0
[  227.548827][ T6616]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.548849][ T6616]  ? clear_bhb_loop+0x60/0xb0
[  227.548867][ T6616]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.548883][ T6616] RIP: 0033:0x7fa4f559038a
[  227.548898][ T6616] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  227.548920][ T6616] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.548940][ T6616] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  227.548953][ T6616] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  227.548965][ T6616] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  227.548977][ T6616] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  227.548988][ T6616] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  227.549006][ T6616]  </TASK>
[  227.549025][ T6616] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  227.864349][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.157550][ T6619] loop1: detected capacity change from 0 to 32768
[  228.168661][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.176370][ T6619] CPU: 0 UID: 0 PID: 6619 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT(full) 
[  228.176393][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.176405][ T6619] Call Trace:
[  228.176412][ T6619]  <TASK>
[  228.176419][ T6619]  dump_stack_lvl+0x189/0x250
[  228.176443][ T6619]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.176460][ T6619]  ? __pfx__printk+0x10/0x10
[  228.176479][ T6619]  ? kernfs_root+0x1c/0x230
[  228.176495][ T6619]  ? kernfs_path_from_node+0x250/0x290
[  228.176518][ T6619]  ? kernfs_path_from_node+0x2f/0x290
[  228.176534][ T6619]  sysfs_create_dir_ns+0x259/0x280
[  228.176558][ T6619]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.176579][ T6619]  ? do_raw_spin_unlock+0x122/0x240
[  228.176598][ T6619]  kobject_add_internal+0x59f/0xb40
[  228.176622][ T6619]  kobject_init_and_add+0x125/0x190
[  228.176643][ T6619]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.176660][ T6619]  ? __raw_spin_lock_init+0x45/0x100
[  228.176676][ T6619]  ? __init_swait_queue_head+0xa9/0x150
[  228.176694][ T6619]  gfs2_sys_fs_add+0x234/0x450
[  228.176716][ T6619]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.176741][ T6619]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.176762][ T6619]  gfs2_fill_super+0x13c0/0x20d0
[  228.176781][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.176800][ T6619]  ? sb_set_blocksize+0x104/0x180
[  228.176820][ T6619]  ? setup_bdev_super+0x4c1/0x5b0
[  228.176839][ T6619]  get_tree_bdev_flags+0x40e/0x4d0
[  228.176857][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.176873][ T6619]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.176894][ T6619]  gfs2_get_tree+0x51/0x1e0
[  228.176912][ T6619]  vfs_get_tree+0x92/0x2b0
[  228.176931][ T6619]  do_new_mount+0x2a2/0xa30
[  228.176951][ T6619]  ? ns_capable+0x8a/0xf0
[  228.176971][ T6619]  ? __pfx_do_new_mount+0x10/0x10
[  228.176989][ T6619]  ? path_mount+0x61c/0xfe0
[  228.177006][ T6619]  ? user_path_at+0x44/0x60
[  228.177025][ T6619]  __se_sys_mount+0x317/0x410
[  228.177046][ T6619]  ? __pfx___se_sys_mount+0x10/0x10
[  228.177066][ T6619]  ? rcu_is_watching+0x15/0xb0
[  228.177086][ T6619]  ? __x64_sys_mount+0x20/0xc0
[  228.177107][ T6619]  do_syscall_64+0xfa/0xfa0
[  228.177127][ T6619]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.177144][ T6619]  ? clear_bhb_loop+0x60/0xb0
[  228.177161][ T6619]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.177177][ T6619] RIP: 0033:0x7fa4f559038a
[  228.177193][ T6619] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  228.177207][ T6619] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.177225][ T6619] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  228.177237][ T6619] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  228.177250][ T6619] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  228.177262][ T6619] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  228.177273][ T6619] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  228.177291][ T6619]  </TASK>
[  228.177311][ T6619] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  228.493304][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 15:05:36 executed programs: 188
[  228.786319][ T6622] loop1: detected capacity change from 0 to 32768
[  228.794946][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.802423][ T6622] CPU: 0 UID: 0 PID: 6622 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT(full) 
[  228.802447][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.802458][ T6622] Call Trace:
[  228.802465][ T6622]  <TASK>
[  228.802472][ T6622]  dump_stack_lvl+0x189/0x250
[  228.802494][ T6622]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.802511][ T6622]  ? __pfx__printk+0x10/0x10
[  228.802529][ T6622]  ? kernfs_root+0x1c/0x230
[  228.802544][ T6622]  ? kernfs_path_from_node+0x250/0x290
[  228.802557][ T6622]  ? kernfs_path_from_node+0x2f/0x290
[  228.802570][ T6622]  sysfs_create_dir_ns+0x259/0x280
[  228.802590][ T6622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.802611][ T6622]  ? do_raw_spin_unlock+0x122/0x240
[  228.802628][ T6622]  kobject_add_internal+0x59f/0xb40
[  228.802653][ T6622]  kobject_init_and_add+0x125/0x190
[  228.802675][ T6622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.802695][ T6622]  ? __raw_spin_lock_init+0x45/0x100
[  228.802720][ T6622]  ? __init_swait_queue_head+0xa9/0x150
[  228.802739][ T6622]  gfs2_sys_fs_add+0x234/0x450
[  228.802758][ T6622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.802778][ T6622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.802798][ T6622]  gfs2_fill_super+0x13c0/0x20d0
[  228.802819][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.802835][ T6622]  ? sb_set_blocksize+0x104/0x180
[  228.802854][ T6622]  ? setup_bdev_super+0x4c1/0x5b0
[  228.802872][ T6622]  get_tree_bdev_flags+0x40e/0x4d0
[  228.802888][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.802909][ T6622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.802931][ T6622]  gfs2_get_tree+0x51/0x1e0
[  228.802948][ T6622]  vfs_get_tree+0x92/0x2b0
[  228.802967][ T6622]  do_new_mount+0x2a2/0xa30
[  228.802988][ T6622]  ? ns_capable+0x8a/0xf0
[  228.803009][ T6622]  ? __pfx_do_new_mount+0x10/0x10
[  228.803028][ T6622]  ? path_mount+0x61c/0xfe0
[  228.803045][ T6622]  ? user_path_at+0x44/0x60
[  228.803063][ T6622]  __se_sys_mount+0x317/0x410
[  228.803084][ T6622]  ? __pfx___se_sys_mount+0x10/0x10
[  228.803105][ T6622]  ? rcu_is_watching+0x15/0xb0
[  228.803126][ T6622]  ? __x64_sys_mount+0x20/0xc0
[  228.803145][ T6622]  do_syscall_64+0xfa/0xfa0
[  228.803164][ T6622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.803180][ T6622]  ? clear_bhb_loop+0x60/0xb0
[  228.803196][ T6622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.803210][ T6622] RIP: 0033:0x7fa4f559038a
[  228.803225][ T6622] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  228.803239][ T6622] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.803257][ T6622] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  228.803269][ T6622] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  228.803280][ T6622] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  228.803292][ T6622] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  228.803302][ T6622] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  228.803319][ T6622]  </TASK>
[  228.803337][ T6622] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.118021][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.407041][ T6625] loop1: detected capacity change from 0 to 32768
[  229.420715][ T6625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.428983][ T6625] CPU: 1 UID: 0 PID: 6625 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT(full) 
[  229.429008][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.429019][ T6625] Call Trace:
[  229.429026][ T6625]  <TASK>
[  229.429034][ T6625]  dump_stack_lvl+0x189/0x250
[  229.429059][ T6625]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.429077][ T6625]  ? __pfx__printk+0x10/0x10
[  229.429095][ T6625]  ? kernfs_root+0x1c/0x230
[  229.429111][ T6625]  ? kernfs_path_from_node+0x250/0x290
[  229.429124][ T6625]  ? kernfs_path_from_node+0x2f/0x290
[  229.429139][ T6625]  sysfs_create_dir_ns+0x259/0x280
[  229.429162][ T6625]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.429184][ T6625]  ? do_raw_spin_unlock+0x122/0x240
[  229.429202][ T6625]  kobject_add_internal+0x59f/0xb40
[  229.429226][ T6625]  kobject_init_and_add+0x125/0x190
[  229.429247][ T6625]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.429266][ T6625]  ? __raw_spin_lock_init+0x45/0x100
[  229.429283][ T6625]  ? __init_swait_queue_head+0xa9/0x150
[  229.429300][ T6625]  gfs2_sys_fs_add+0x234/0x450
[  229.429321][ T6625]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.429344][ T6625]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.429369][ T6625]  gfs2_fill_super+0x13c0/0x20d0
[  229.429393][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.429411][ T6625]  ? sb_set_blocksize+0x104/0x180
[  229.429431][ T6625]  ? setup_bdev_super+0x4c1/0x5b0
[  229.429450][ T6625]  get_tree_bdev_flags+0x40e/0x4d0
[  229.429468][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.429484][ T6625]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.429505][ T6625]  gfs2_get_tree+0x51/0x1e0
[  229.429523][ T6625]  vfs_get_tree+0x92/0x2b0
[  229.429542][ T6625]  do_new_mount+0x2a2/0xa30
[  229.429562][ T6625]  ? ns_capable+0x8a/0xf0
[  229.429583][ T6625]  ? __pfx_do_new_mount+0x10/0x10
[  229.429601][ T6625]  ? path_mount+0x61c/0xfe0
[  229.429618][ T6625]  ? user_path_at+0x44/0x60
[  229.429638][ T6625]  __se_sys_mount+0x317/0x410
[  229.429668][ T6625]  ? __pfx___se_sys_mount+0x10/0x10
[  229.429689][ T6625]  ? rcu_is_watching+0x15/0xb0
[  229.429711][ T6625]  ? __x64_sys_mount+0x20/0xc0
[  229.429732][ T6625]  do_syscall_64+0xfa/0xfa0
[  229.429751][ T6625]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.429768][ T6625]  ? clear_bhb_loop+0x60/0xb0
[  229.429785][ T6625]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.429801][ T6625] RIP: 0033:0x7fa4f559038a
[  229.429816][ T6625] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  229.429830][ T6625] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.429849][ T6625] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  229.429862][ T6625] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  229.429875][ T6625] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  229.429886][ T6625] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  229.429897][ T6625] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  229.429916][ T6625]  </TASK>
[  229.429935][ T6625] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.745426][ T6625] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.033565][ T6628] loop1: detected capacity change from 0 to 32768
[  230.048473][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.056209][ T6628] CPU: 0 UID: 0 PID: 6628 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT(full) 
[  230.056231][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.056243][ T6628] Call Trace:
[  230.056250][ T6628]  <TASK>
[  230.056258][ T6628]  dump_stack_lvl+0x189/0x250
[  230.056283][ T6628]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.056302][ T6628]  ? __pfx__printk+0x10/0x10
[  230.056329][ T6628]  ? kernfs_root+0x1c/0x230
[  230.056345][ T6628]  ? kernfs_path_from_node+0x250/0x290
[  230.056359][ T6628]  ? kernfs_path_from_node+0x2f/0x290
[  230.056374][ T6628]  sysfs_create_dir_ns+0x259/0x280
[  230.056396][ T6628]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.056418][ T6628]  ? do_raw_spin_unlock+0x122/0x240
[  230.056437][ T6628]  kobject_add_internal+0x59f/0xb40
[  230.056468][ T6628]  kobject_init_and_add+0x125/0x190
[  230.056489][ T6628]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.056508][ T6628]  ? __raw_spin_lock_init+0x45/0x100
[  230.056525][ T6628]  ? __init_swait_queue_head+0xa9/0x150
[  230.056542][ T6628]  gfs2_sys_fs_add+0x234/0x450
[  230.056563][ T6628]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.056586][ T6628]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.056609][ T6628]  gfs2_fill_super+0x13c0/0x20d0
[  230.056633][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.056652][ T6628]  ? sb_set_blocksize+0x104/0x180
[  230.056672][ T6628]  ? setup_bdev_super+0x4c1/0x5b0
[  230.056691][ T6628]  get_tree_bdev_flags+0x40e/0x4d0
[  230.056709][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.056726][ T6628]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.056746][ T6628]  gfs2_get_tree+0x51/0x1e0
[  230.056763][ T6628]  vfs_get_tree+0x92/0x2b0
[  230.056782][ T6628]  do_new_mount+0x2a2/0xa30
[  230.056803][ T6628]  ? ns_capable+0x8a/0xf0
[  230.056824][ T6628]  ? __pfx_do_new_mount+0x10/0x10
[  230.056841][ T6628]  ? path_mount+0x61c/0xfe0
[  230.056858][ T6628]  ? user_path_at+0x44/0x60
[  230.056877][ T6628]  __se_sys_mount+0x317/0x410
[  230.056898][ T6628]  ? __pfx___se_sys_mount+0x10/0x10
[  230.056918][ T6628]  ? rcu_is_watching+0x15/0xb0
[  230.056938][ T6628]  ? __x64_sys_mount+0x20/0xc0
[  230.056957][ T6628]  do_syscall_64+0xfa/0xfa0
[  230.056976][ T6628]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.056993][ T6628]  ? clear_bhb_loop+0x60/0xb0
[  230.057011][ T6628]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.057028][ T6628] RIP: 0033:0x7fa4f559038a
[  230.057044][ T6628] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  230.057058][ T6628] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.057077][ T6628] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  230.057090][ T6628] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  230.057101][ T6628] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  230.057113][ T6628] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  230.057124][ T6628] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  230.057141][ T6628]  </TASK>
[  230.057160][ T6628] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  230.374055][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.655841][ T6631] loop1: detected capacity change from 0 to 32768
[  230.663830][ T6631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.671351][ T6631] CPU: 0 UID: 0 PID: 6631 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT(full) 
[  230.671374][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.671385][ T6631] Call Trace:
[  230.671392][ T6631]  <TASK>
[  230.671400][ T6631]  dump_stack_lvl+0x189/0x250
[  230.671424][ T6631]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.671442][ T6631]  ? __pfx__printk+0x10/0x10
[  230.671462][ T6631]  ? kernfs_root+0x1c/0x230
[  230.671480][ T6631]  ? kernfs_path_from_node+0x250/0x290
[  230.671495][ T6631]  ? kernfs_path_from_node+0x2f/0x290
[  230.671511][ T6631]  sysfs_create_dir_ns+0x259/0x280
[  230.671534][ T6631]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.671556][ T6631]  ? do_raw_spin_unlock+0x122/0x240
[  230.671574][ T6631]  kobject_add_internal+0x59f/0xb40
[  230.671597][ T6631]  kobject_init_and_add+0x125/0x190
[  230.671619][ T6631]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.671634][ T6631]  ? __raw_spin_lock_init+0x45/0x100
[  230.671650][ T6631]  ? __init_swait_queue_head+0xa9/0x150
[  230.671667][ T6631]  gfs2_sys_fs_add+0x234/0x450
[  230.671688][ T6631]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.671712][ T6631]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.671737][ T6631]  gfs2_fill_super+0x13c0/0x20d0
[  230.671757][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.671774][ T6631]  ? sb_set_blocksize+0x104/0x180
[  230.671793][ T6631]  ? setup_bdev_super+0x4c1/0x5b0
[  230.671810][ T6631]  get_tree_bdev_flags+0x40e/0x4d0
[  230.671828][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.671846][ T6631]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.671869][ T6631]  gfs2_get_tree+0x51/0x1e0
[  230.671887][ T6631]  vfs_get_tree+0x92/0x2b0
[  230.671905][ T6631]  do_new_mount+0x2a2/0xa30
[  230.671925][ T6631]  ? ns_capable+0x8a/0xf0
[  230.671946][ T6631]  ? __pfx_do_new_mount+0x10/0x10
[  230.671963][ T6631]  ? path_mount+0x61c/0xfe0
[  230.671978][ T6631]  ? user_path_at+0x44/0x60
[  230.671994][ T6631]  __se_sys_mount+0x317/0x410
[  230.672016][ T6631]  ? __pfx___se_sys_mount+0x10/0x10
[  230.672038][ T6631]  ? rcu_is_watching+0x15/0xb0
[  230.672059][ T6631]  ? __x64_sys_mount+0x20/0xc0
[  230.672080][ T6631]  do_syscall_64+0xfa/0xfa0
[  230.672099][ T6631]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.672116][ T6631]  ? clear_bhb_loop+0x60/0xb0
[  230.672131][ T6631]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.672143][ T6631] RIP: 0033:0x7fa4f559038a
[  230.672156][ T6631] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  230.672170][ T6631] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.672187][ T6631] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  230.672199][ T6631] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  230.672212][ T6631] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  230.672223][ T6631] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  230.672235][ T6631] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  230.672253][ T6631]  </TASK>
[  230.971259][ T6631] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  230.985668][ T6631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.287332][ T6634] loop1: detected capacity change from 0 to 32768
[  231.302949][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.310452][ T6634] CPU: 0 UID: 0 PID: 6634 Comm: syz.1.207 Not tainted syzkaller #0 PREEMPT(full) 
[  231.310477][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.310488][ T6634] Call Trace:
[  231.310495][ T6634]  <TASK>
[  231.310503][ T6634]  dump_stack_lvl+0x189/0x250
[  231.310528][ T6634]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.310556][ T6634]  ? __pfx__printk+0x10/0x10
[  231.310575][ T6634]  ? kernfs_root+0x1c/0x230
[  231.310593][ T6634]  ? kernfs_path_from_node+0x250/0x290
[  231.310607][ T6634]  ? kernfs_path_from_node+0x2f/0x290
[  231.310622][ T6634]  sysfs_create_dir_ns+0x259/0x280
[  231.310645][ T6634]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.310668][ T6634]  ? do_raw_spin_unlock+0x122/0x240
[  231.310688][ T6634]  kobject_add_internal+0x59f/0xb40
[  231.310713][ T6634]  kobject_init_and_add+0x125/0x190
[  231.310733][ T6634]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.310752][ T6634]  ? __raw_spin_lock_init+0x45/0x100
[  231.310768][ T6634]  ? __init_swait_queue_head+0xa9/0x150
[  231.310785][ T6634]  gfs2_sys_fs_add+0x234/0x450
[  231.310806][ T6634]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.310827][ T6634]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.310849][ T6634]  gfs2_fill_super+0x13c0/0x20d0
[  231.310872][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.310890][ T6634]  ? sb_set_blocksize+0x104/0x180
[  231.310911][ T6634]  ? setup_bdev_super+0x4c1/0x5b0
[  231.310930][ T6634]  get_tree_bdev_flags+0x40e/0x4d0
[  231.310949][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.310966][ T6634]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.310988][ T6634]  gfs2_get_tree+0x51/0x1e0
[  231.311005][ T6634]  vfs_get_tree+0x92/0x2b0
[  231.311024][ T6634]  do_new_mount+0x2a2/0xa30
[  231.311045][ T6634]  ? ns_capable+0x8a/0xf0
[  231.311067][ T6634]  ? __pfx_do_new_mount+0x10/0x10
[  231.311086][ T6634]  ? path_mount+0x61c/0xfe0
[  231.311103][ T6634]  ? user_path_at+0x44/0x60
[  231.311122][ T6634]  __se_sys_mount+0x317/0x410
[  231.311143][ T6634]  ? __pfx___se_sys_mount+0x10/0x10
[  231.311163][ T6634]  ? rcu_is_watching+0x15/0xb0
[  231.311184][ T6634]  ? __x64_sys_mount+0x20/0xc0
[  231.311203][ T6634]  do_syscall_64+0xfa/0xfa0
[  231.311221][ T6634]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.311239][ T6634]  ? clear_bhb_loop+0x60/0xb0
[  231.311256][ T6634]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.311272][ T6634] RIP: 0033:0x7fa4f559038a
[  231.311286][ T6634] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  231.311301][ T6634] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.311320][ T6634] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  231.311334][ T6634] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  231.311346][ T6634] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  231.311359][ T6634] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  231.311370][ T6634] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  231.311387][ T6634]  </TASK>
[  231.311417][ T6634] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  231.626464][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.921472][ T6637] loop1: detected capacity change from 0 to 32768
[  231.935707][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.943579][ T6637] CPU: 1 UID: 0 PID: 6637 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT(full) 
[  231.943604][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.943616][ T6637] Call Trace:
[  231.943622][ T6637]  <TASK>
[  231.943630][ T6637]  dump_stack_lvl+0x189/0x250
[  231.943654][ T6637]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.943673][ T6637]  ? __pfx__printk+0x10/0x10
[  231.943691][ T6637]  ? kernfs_root+0x1c/0x230
[  231.943709][ T6637]  ? kernfs_path_from_node+0x250/0x290
[  231.943723][ T6637]  ? kernfs_path_from_node+0x2f/0x290
[  231.943737][ T6637]  sysfs_create_dir_ns+0x259/0x280
[  231.943760][ T6637]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.943782][ T6637]  ? do_raw_spin_unlock+0x122/0x240
[  231.943802][ T6637]  kobject_add_internal+0x59f/0xb40
[  231.943826][ T6637]  kobject_init_and_add+0x125/0x190
[  231.943848][ T6637]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.943866][ T6637]  ? __raw_spin_lock_init+0x45/0x100
[  231.943882][ T6637]  ? __init_swait_queue_head+0xa9/0x150
[  231.943899][ T6637]  gfs2_sys_fs_add+0x234/0x450
[  231.943920][ T6637]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.943942][ T6637]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.943963][ T6637]  gfs2_fill_super+0x13c0/0x20d0
[  231.943985][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.944004][ T6637]  ? sb_set_blocksize+0x104/0x180
[  231.944024][ T6637]  ? setup_bdev_super+0x4c1/0x5b0
[  231.944044][ T6637]  get_tree_bdev_flags+0x40e/0x4d0
[  231.944062][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.944078][ T6637]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.944101][ T6637]  gfs2_get_tree+0x51/0x1e0
[  231.944119][ T6637]  vfs_get_tree+0x92/0x2b0
[  231.944137][ T6637]  do_new_mount+0x2a2/0xa30
[  231.944158][ T6637]  ? ns_capable+0x8a/0xf0
[  231.944190][ T6637]  ? __pfx_do_new_mount+0x10/0x10
[  231.944209][ T6637]  ? path_mount+0x61c/0xfe0
[  231.944226][ T6637]  ? user_path_at+0x44/0x60
[  231.944244][ T6637]  __se_sys_mount+0x317/0x410
[  231.944266][ T6637]  ? __pfx___se_sys_mount+0x10/0x10
[  231.944286][ T6637]  ? rcu_is_watching+0x15/0xb0
[  231.944306][ T6637]  ? __x64_sys_mount+0x20/0xc0
[  231.944325][ T6637]  do_syscall_64+0xfa/0xfa0
[  231.944344][ T6637]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.944360][ T6637]  ? clear_bhb_loop+0x60/0xb0
[  231.944377][ T6637]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.944393][ T6637] RIP: 0033:0x7fa4f559038a
[  231.944408][ T6637] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  231.944423][ T6637] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.944441][ T6637] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  231.944455][ T6637] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  231.944467][ T6637] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  231.944478][ T6637] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  231.944489][ T6637] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  231.944508][ T6637]  </TASK>
[  231.944528][ T6637] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.259465][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  232.556916][ T6640] loop1: detected capacity change from 0 to 32768
[  232.567703][ T6640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.575440][ T6640] CPU: 1 UID: 0 PID: 6640 Comm: syz.1.209 Not tainted syzkaller #0 PREEMPT(full) 
[  232.575462][ T6640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.575472][ T6640] Call Trace:
[  232.575479][ T6640]  <TASK>
[  232.575487][ T6640]  dump_stack_lvl+0x189/0x250
[  232.575512][ T6640]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.575531][ T6640]  ? __pfx__printk+0x10/0x10
[  232.575550][ T6640]  ? kernfs_root+0x1c/0x230
[  232.575567][ T6640]  ? kernfs_path_from_node+0x250/0x290
[  232.575580][ T6640]  ? kernfs_path_from_node+0x2f/0x290
[  232.575596][ T6640]  sysfs_create_dir_ns+0x259/0x280
[  232.575618][ T6640]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.575639][ T6640]  ? do_raw_spin_unlock+0x122/0x240
[  232.575658][ T6640]  kobject_add_internal+0x59f/0xb40
[  232.575682][ T6640]  kobject_init_and_add+0x125/0x190
[  232.575702][ T6640]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.575721][ T6640]  ? __raw_spin_lock_init+0x45/0x100
[  232.575737][ T6640]  ? __init_swait_queue_head+0xa9/0x150
[  232.575755][ T6640]  gfs2_sys_fs_add+0x234/0x450
[  232.575778][ T6640]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.575801][ T6640]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.575823][ T6640]  gfs2_fill_super+0x13c0/0x20d0
[  232.575846][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.575866][ T6640]  ? sb_set_blocksize+0x104/0x180
[  232.575887][ T6640]  ? setup_bdev_super+0x4c1/0x5b0
[  232.575907][ T6640]  get_tree_bdev_flags+0x40e/0x4d0
[  232.575945][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.575961][ T6640]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.575982][ T6640]  gfs2_get_tree+0x51/0x1e0
[  232.575999][ T6640]  vfs_get_tree+0x92/0x2b0
[  232.576017][ T6640]  do_new_mount+0x2a2/0xa30
[  232.576039][ T6640]  ? ns_capable+0x8a/0xf0
[  232.576059][ T6640]  ? __pfx_do_new_mount+0x10/0x10
[  232.576077][ T6640]  ? path_mount+0x61c/0xfe0
[  232.576102][ T6640]  ? user_path_at+0x44/0x60
[  232.576121][ T6640]  __se_sys_mount+0x317/0x410
[  232.576142][ T6640]  ? __pfx___se_sys_mount+0x10/0x10
[  232.576164][ T6640]  ? rcu_is_watching+0x15/0xb0
[  232.576184][ T6640]  ? __x64_sys_mount+0x20/0xc0
[  232.576204][ T6640]  do_syscall_64+0xfa/0xfa0
[  232.576223][ T6640]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.576240][ T6640]  ? clear_bhb_loop+0x60/0xb0
[  232.576258][ T6640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.576275][ T6640] RIP: 0033:0x7fa4f559038a
[  232.576290][ T6640] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  232.576304][ T6640] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.576323][ T6640] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  232.576335][ T6640] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  232.576347][ T6640] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  232.576358][ T6640] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  232.576369][ T6640] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  232.576386][ T6640]  </TASK>
[  232.576406][ T6640] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.892327][ T6640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  233.189065][ T6643] loop1: detected capacity change from 0 to 32768
[  233.197761][ T6643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.205428][ T6643] CPU: 1 UID: 0 PID: 6643 Comm: syz.1.210 Not tainted syzkaller #0 PREEMPT(full) 
[  233.205448][ T6643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.205458][ T6643] Call Trace:
[  233.205465][ T6643]  <TASK>
[  233.205472][ T6643]  dump_stack_lvl+0x189/0x250
[  233.205495][ T6643]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.205514][ T6643]  ? __pfx__printk+0x10/0x10
[  233.205533][ T6643]  ? kernfs_root+0x1c/0x230
[  233.205550][ T6643]  ? kernfs_path_from_node+0x250/0x290
[  233.205564][ T6643]  ? kernfs_path_from_node+0x2f/0x290
[  233.205580][ T6643]  sysfs_create_dir_ns+0x259/0x280
[  233.205602][ T6643]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.205624][ T6643]  ? do_raw_spin_unlock+0x122/0x240
[  233.205643][ T6643]  kobject_add_internal+0x59f/0xb40
[  233.205668][ T6643]  kobject_init_and_add+0x125/0x190
[  233.205689][ T6643]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.205708][ T6643]  ? __raw_spin_lock_init+0x45/0x100
[  233.205725][ T6643]  ? __init_swait_queue_head+0xa9/0x150
[  233.205743][ T6643]  gfs2_sys_fs_add+0x234/0x450
[  233.205766][ T6643]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.205790][ T6643]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.205813][ T6643]  gfs2_fill_super+0x13c0/0x20d0
[  233.205836][ T6643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.205852][ T6643]  ? sb_set_blocksize+0x104/0x180
[  233.205869][ T6643]  ? setup_bdev_super+0x4c1/0x5b0
[  233.205888][ T6643]  get_tree_bdev_flags+0x40e/0x4d0
[  233.205905][ T6643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.205921][ T6643]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.205944][ T6643]  gfs2_get_tree+0x51/0x1e0
[  233.205960][ T6643]  vfs_get_tree+0x92/0x2b0
[  233.205977][ T6643]  do_new_mount+0x2a2/0xa30
[  233.205997][ T6643]  ? ns_capable+0x8a/0xf0
[  233.206015][ T6643]  ? __pfx_do_new_mount+0x10/0x10
[  233.206031][ T6643]  ? path_mount+0x61c/0xfe0
[  233.206046][ T6643]  ? user_path_at+0x44/0x60
[  233.206063][ T6643]  __se_sys_mount+0x317/0x410
[  233.206094][ T6643]  ? __pfx___se_sys_mount+0x10/0x10
[  233.206112][ T6643]  ? rcu_is_watching+0x15/0xb0
[  233.206132][ T6643]  ? __x64_sys_mount+0x20/0xc0
[  233.206150][ T6643]  do_syscall_64+0xfa/0xfa0
[  233.206167][ T6643]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.206182][ T6643]  ? clear_bhb_loop+0x60/0xb0
[  233.206199][ T6643]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.206213][ T6643] RIP: 0033:0x7fa4f559038a
[  233.206227][ T6643] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  233.206240][ T6643] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.206259][ T6643] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  233.206271][ T6643] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  233.206282][ T6643] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  233.206293][ T6643] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  233.206303][ T6643] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  233.206319][ T6643]  </TASK>
[  233.206337][ T6643] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  233.521460][ T6643] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 15:05:41 executed programs: 196
[  233.826345][ T6646] loop1: detected capacity change from 0 to 32768
[  233.837643][ T6646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.845387][ T6646] CPU: 0 UID: 0 PID: 6646 Comm: syz.1.211 Not tainted syzkaller #0 PREEMPT(full) 
[  233.845409][ T6646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.845420][ T6646] Call Trace:
[  233.845427][ T6646]  <TASK>
[  233.845434][ T6646]  dump_stack_lvl+0x189/0x250
[  233.845459][ T6646]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.845477][ T6646]  ? __pfx__printk+0x10/0x10
[  233.845496][ T6646]  ? kernfs_root+0x1c/0x230
[  233.845513][ T6646]  ? kernfs_path_from_node+0x250/0x290
[  233.845527][ T6646]  ? kernfs_path_from_node+0x2f/0x290
[  233.845544][ T6646]  sysfs_create_dir_ns+0x259/0x280
[  233.845565][ T6646]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.845588][ T6646]  ? do_raw_spin_unlock+0x122/0x240
[  233.845607][ T6646]  kobject_add_internal+0x59f/0xb40
[  233.845632][ T6646]  kobject_init_and_add+0x125/0x190
[  233.845653][ T6646]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.845672][ T6646]  ? __raw_spin_lock_init+0x45/0x100
[  233.845688][ T6646]  ? __init_swait_queue_head+0xa9/0x150
[  233.845705][ T6646]  gfs2_sys_fs_add+0x234/0x450
[  233.845726][ T6646]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.845749][ T6646]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.845772][ T6646]  gfs2_fill_super+0x13c0/0x20d0
[  233.845795][ T6646]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.845814][ T6646]  ? sb_set_blocksize+0x104/0x180
[  233.845835][ T6646]  ? setup_bdev_super+0x4c1/0x5b0
[  233.845854][ T6646]  get_tree_bdev_flags+0x40e/0x4d0
[  233.845873][ T6646]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.845890][ T6646]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.845911][ T6646]  gfs2_get_tree+0x51/0x1e0
[  233.845929][ T6646]  vfs_get_tree+0x92/0x2b0
[  233.845948][ T6646]  do_new_mount+0x2a2/0xa30
[  233.845970][ T6646]  ? ns_capable+0x8a/0xf0
[  233.845989][ T6646]  ? __pfx_do_new_mount+0x10/0x10
[  233.846008][ T6646]  ? path_mount+0x61c/0xfe0
[  233.846025][ T6646]  ? user_path_at+0x44/0x60
[  233.846043][ T6646]  __se_sys_mount+0x317/0x410
[  233.846061][ T6646]  ? __pfx___se_sys_mount+0x10/0x10
[  233.846077][ T6646]  ? rcu_is_watching+0x15/0xb0
[  233.846097][ T6646]  ? __x64_sys_mount+0x20/0xc0
[  233.846115][ T6646]  do_syscall_64+0xfa/0xfa0
[  233.846133][ T6646]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.846148][ T6646]  ? clear_bhb_loop+0x60/0xb0
[  233.846165][ T6646]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.846180][ T6646] RIP: 0033:0x7fa4f559038a
[  233.846195][ T6646] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  233.846210][ T6646] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.846239][ T6646] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  233.846252][ T6646] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  233.846263][ T6646] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  233.846275][ T6646] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  233.846286][ T6646] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  233.846305][ T6646]  </TASK>
[  233.846325][ T6646] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  234.161505][ T6646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.457602][ T6649] loop1: detected capacity change from 0 to 32768
[  234.466512][ T6649] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.474309][ T6649] CPU: 1 UID: 0 PID: 6649 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT(full) 
[  234.474338][ T6649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.474350][ T6649] Call Trace:
[  234.474356][ T6649]  <TASK>
[  234.474364][ T6649]  dump_stack_lvl+0x189/0x250
[  234.474388][ T6649]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.474407][ T6649]  ? __pfx__printk+0x10/0x10
[  234.474425][ T6649]  ? kernfs_root+0x1c/0x230
[  234.474443][ T6649]  ? kernfs_path_from_node+0x250/0x290
[  234.474457][ T6649]  ? kernfs_path_from_node+0x2f/0x290
[  234.474472][ T6649]  sysfs_create_dir_ns+0x259/0x280
[  234.474494][ T6649]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.474522][ T6649]  ? do_raw_spin_unlock+0x122/0x240
[  234.474542][ T6649]  kobject_add_internal+0x59f/0xb40
[  234.474567][ T6649]  kobject_init_and_add+0x125/0x190
[  234.474588][ T6649]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.474606][ T6649]  ? __raw_spin_lock_init+0x45/0x100
[  234.474623][ T6649]  ? __init_swait_queue_head+0xa9/0x150
[  234.474640][ T6649]  gfs2_sys_fs_add+0x234/0x450
[  234.474663][ T6649]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.474688][ T6649]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.474709][ T6649]  gfs2_fill_super+0x13c0/0x20d0
[  234.474731][ T6649]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.474751][ T6649]  ? sb_set_blocksize+0x104/0x180
[  234.474772][ T6649]  ? setup_bdev_super+0x4c1/0x5b0
[  234.474792][ T6649]  get_tree_bdev_flags+0x40e/0x4d0
[  234.474811][ T6649]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.474828][ T6649]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.474850][ T6649]  gfs2_get_tree+0x51/0x1e0
[  234.474869][ T6649]  vfs_get_tree+0x92/0x2b0
[  234.474887][ T6649]  do_new_mount+0x2a2/0xa30
[  234.474907][ T6649]  ? ns_capable+0x8a/0xf0
[  234.474928][ T6649]  ? __pfx_do_new_mount+0x10/0x10
[  234.474946][ T6649]  ? path_mount+0x61c/0xfe0
[  234.474963][ T6649]  ? user_path_at+0x44/0x60
[  234.474982][ T6649]  __se_sys_mount+0x317/0x410
[  234.475004][ T6649]  ? __pfx___se_sys_mount+0x10/0x10
[  234.475026][ T6649]  ? rcu_is_watching+0x15/0xb0
[  234.475047][ T6649]  ? __x64_sys_mount+0x20/0xc0
[  234.475066][ T6649]  do_syscall_64+0xfa/0xfa0
[  234.475085][ T6649]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.475102][ T6649]  ? clear_bhb_loop+0x60/0xb0
[  234.475120][ T6649]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.475136][ T6649] RIP: 0033:0x7fa4f559038a
[  234.475158][ T6649] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  234.475172][ T6649] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.475191][ T6649] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  234.475205][ T6649] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  234.475218][ T6649] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  234.475230][ T6649] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  234.475243][ T6649] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  234.475262][ T6649]  </TASK>
[  234.475282][ T6649] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  234.789925][ T6649] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.074717][ T6652] loop1: detected capacity change from 0 to 32768
[  235.089895][ T6652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.097932][ T6652] CPU: 0 UID: 0 PID: 6652 Comm: syz.1.213 Not tainted syzkaller #0 PREEMPT(full) 
[  235.097955][ T6652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.097966][ T6652] Call Trace:
[  235.097972][ T6652]  <TASK>
[  235.097980][ T6652]  dump_stack_lvl+0x189/0x250
[  235.098005][ T6652]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.098023][ T6652]  ? __pfx__printk+0x10/0x10
[  235.098041][ T6652]  ? kernfs_root+0x1c/0x230
[  235.098059][ T6652]  ? kernfs_path_from_node+0x250/0x290
[  235.098073][ T6652]  ? kernfs_path_from_node+0x2f/0x290
[  235.098090][ T6652]  sysfs_create_dir_ns+0x259/0x280
[  235.098122][ T6652]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.098144][ T6652]  ? do_raw_spin_unlock+0x122/0x240
[  235.098162][ T6652]  kobject_add_internal+0x59f/0xb40
[  235.098185][ T6652]  kobject_init_and_add+0x125/0x190
[  235.098205][ T6652]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.098224][ T6652]  ? __raw_spin_lock_init+0x45/0x100
[  235.098241][ T6652]  ? __init_swait_queue_head+0xa9/0x150
[  235.098258][ T6652]  gfs2_sys_fs_add+0x234/0x450
[  235.098281][ T6652]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.098304][ T6652]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.098327][ T6652]  gfs2_fill_super+0x13c0/0x20d0
[  235.098350][ T6652]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.098369][ T6652]  ? sb_set_blocksize+0x104/0x180
[  235.098388][ T6652]  ? setup_bdev_super+0x4c1/0x5b0
[  235.098407][ T6652]  get_tree_bdev_flags+0x40e/0x4d0
[  235.098425][ T6652]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.098442][ T6652]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.098465][ T6652]  gfs2_get_tree+0x51/0x1e0
[  235.098484][ T6652]  vfs_get_tree+0x92/0x2b0
[  235.098504][ T6652]  do_new_mount+0x2a2/0xa30
[  235.098524][ T6652]  ? ns_capable+0x8a/0xf0
[  235.098544][ T6652]  ? __pfx_do_new_mount+0x10/0x10
[  235.098561][ T6652]  ? path_mount+0x61c/0xfe0
[  235.098577][ T6652]  ? user_path_at+0x44/0x60
[  235.098595][ T6652]  __se_sys_mount+0x317/0x410
[  235.098617][ T6652]  ? __pfx___se_sys_mount+0x10/0x10
[  235.098637][ T6652]  ? rcu_is_watching+0x15/0xb0
[  235.098658][ T6652]  ? __x64_sys_mount+0x20/0xc0
[  235.098678][ T6652]  do_syscall_64+0xfa/0xfa0
[  235.098697][ T6652]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.098714][ T6652]  ? clear_bhb_loop+0x60/0xb0
[  235.098731][ T6652]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.098747][ T6652] RIP: 0033:0x7fa4f559038a
[  235.098763][ T6652] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  235.098778][ T6652] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.098797][ T6652] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  235.098808][ T6652] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  235.098819][ T6652] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  235.098829][ T6652] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  235.098839][ T6652] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  235.098854][ T6652]  </TASK>
[  235.098874][ T6652] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.417576][ T6652] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.709199][ T6655] loop1: detected capacity change from 0 to 32768
[  235.722250][ T6655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.729703][ T6655] CPU: 0 UID: 0 PID: 6655 Comm: syz.1.214 Not tainted syzkaller #0 PREEMPT(full) 
[  235.729726][ T6655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.729738][ T6655] Call Trace:
[  235.729745][ T6655]  <TASK>
[  235.729752][ T6655]  dump_stack_lvl+0x189/0x250
[  235.729777][ T6655]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.729795][ T6655]  ? __pfx__printk+0x10/0x10
[  235.729814][ T6655]  ? kernfs_root+0x1c/0x230
[  235.729833][ T6655]  ? kernfs_path_from_node+0x250/0x290
[  235.729848][ T6655]  ? kernfs_path_from_node+0x2f/0x290
[  235.729864][ T6655]  sysfs_create_dir_ns+0x259/0x280
[  235.729887][ T6655]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.729909][ T6655]  ? do_raw_spin_unlock+0x122/0x240
[  235.729928][ T6655]  kobject_add_internal+0x59f/0xb40
[  235.729951][ T6655]  kobject_init_and_add+0x125/0x190
[  235.729973][ T6655]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.729991][ T6655]  ? __raw_spin_lock_init+0x45/0x100
[  235.730007][ T6655]  ? __init_swait_queue_head+0xa9/0x150
[  235.730025][ T6655]  gfs2_sys_fs_add+0x234/0x450
[  235.730056][ T6655]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.730080][ T6655]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.730103][ T6655]  gfs2_fill_super+0x13c0/0x20d0
[  235.730126][ T6655]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.730144][ T6655]  ? sb_set_blocksize+0x104/0x180
[  235.730164][ T6655]  ? setup_bdev_super+0x4c1/0x5b0
[  235.730182][ T6655]  get_tree_bdev_flags+0x40e/0x4d0
[  235.730200][ T6655]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.730217][ T6655]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.730239][ T6655]  gfs2_get_tree+0x51/0x1e0
[  235.730255][ T6655]  vfs_get_tree+0x92/0x2b0
[  235.730273][ T6655]  do_new_mount+0x2a2/0xa30
[  235.730294][ T6655]  ? ns_capable+0x8a/0xf0
[  235.730315][ T6655]  ? __pfx_do_new_mount+0x10/0x10
[  235.730333][ T6655]  ? path_mount+0x61c/0xfe0
[  235.730350][ T6655]  ? user_path_at+0x44/0x60
[  235.730368][ T6655]  __se_sys_mount+0x317/0x410
[  235.730389][ T6655]  ? __pfx___se_sys_mount+0x10/0x10
[  235.730410][ T6655]  ? rcu_is_watching+0x15/0xb0
[  235.730432][ T6655]  ? __x64_sys_mount+0x20/0xc0
[  235.730452][ T6655]  do_syscall_64+0xfa/0xfa0
[  235.730472][ T6655]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.730488][ T6655]  ? clear_bhb_loop+0x60/0xb0
[  235.730505][ T6655]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.730521][ T6655] RIP: 0033:0x7fa4f559038a
[  235.730535][ T6655] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  235.730550][ T6655] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.730568][ T6655] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  235.730580][ T6655] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  235.730593][ T6655] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  235.730605][ T6655] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  235.730616][ T6655] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  235.730634][ T6655]  </TASK>
[  235.730653][ T6655] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.046160][ T6655] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.403223][ T6658] loop1: detected capacity change from 0 to 32768
[  236.417441][ T6658] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.425278][ T6658] CPU: 1 UID: 0 PID: 6658 Comm: syz.1.215 Not tainted syzkaller #0 PREEMPT(full) 
[  236.425301][ T6658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.425312][ T6658] Call Trace:
[  236.425319][ T6658]  <TASK>
[  236.425327][ T6658]  dump_stack_lvl+0x189/0x250
[  236.425351][ T6658]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.425368][ T6658]  ? __pfx__printk+0x10/0x10
[  236.425387][ T6658]  ? kernfs_root+0x1c/0x230
[  236.425405][ T6658]  ? kernfs_path_from_node+0x250/0x290
[  236.425419][ T6658]  ? kernfs_path_from_node+0x2f/0x290
[  236.425436][ T6658]  sysfs_create_dir_ns+0x259/0x280
[  236.425459][ T6658]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.425482][ T6658]  ? do_raw_spin_unlock+0x122/0x240
[  236.425500][ T6658]  kobject_add_internal+0x59f/0xb40
[  236.425522][ T6658]  kobject_init_and_add+0x125/0x190
[  236.425542][ T6658]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.425560][ T6658]  ? __raw_spin_lock_init+0x45/0x100
[  236.425575][ T6658]  ? __init_swait_queue_head+0xa9/0x150
[  236.425591][ T6658]  gfs2_sys_fs_add+0x234/0x450
[  236.425613][ T6658]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.425636][ T6658]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.425657][ T6658]  gfs2_fill_super+0x13c0/0x20d0
[  236.425679][ T6658]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.425698][ T6658]  ? sb_set_blocksize+0x104/0x180
[  236.425717][ T6658]  ? setup_bdev_super+0x4c1/0x5b0
[  236.425746][ T6658]  get_tree_bdev_flags+0x40e/0x4d0
[  236.425765][ T6658]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.425782][ T6658]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.425802][ T6658]  gfs2_get_tree+0x51/0x1e0
[  236.425820][ T6658]  vfs_get_tree+0x92/0x2b0
[  236.425838][ T6658]  do_new_mount+0x2a2/0xa30
[  236.425860][ T6658]  ? ns_capable+0x8a/0xf0
[  236.425881][ T6658]  ? __pfx_do_new_mount+0x10/0x10
[  236.425900][ T6658]  ? path_mount+0x61c/0xfe0
[  236.425917][ T6658]  ? user_path_at+0x44/0x60
[  236.425935][ T6658]  __se_sys_mount+0x317/0x410
[  236.425957][ T6658]  ? __pfx___se_sys_mount+0x10/0x10
[  236.425978][ T6658]  ? rcu_is_watching+0x15/0xb0
[  236.425998][ T6658]  ? __x64_sys_mount+0x20/0xc0
[  236.426017][ T6658]  do_syscall_64+0xfa/0xfa0
[  236.426036][ T6658]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.426052][ T6658]  ? clear_bhb_loop+0x60/0xb0
[  236.426069][ T6658]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.426085][ T6658] RIP: 0033:0x7fa4f559038a
[  236.426100][ T6658] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  236.426114][ T6658] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.426134][ T6658] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  236.426147][ T6658] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  236.426160][ T6658] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  236.426172][ T6658] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  236.426182][ T6658] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  236.426200][ T6658]  </TASK>
[  236.426250][ T6658] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.740636][ T6658] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.036684][ T6661] loop1: detected capacity change from 0 to 32768
[  237.050446][ T6661] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.059017][ T6661] CPU: 0 UID: 0 PID: 6661 Comm: syz.1.216 Not tainted syzkaller #0 PREEMPT(full) 
[  237.059040][ T6661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.059051][ T6661] Call Trace:
[  237.059058][ T6661]  <TASK>
[  237.059065][ T6661]  dump_stack_lvl+0x189/0x250
[  237.059089][ T6661]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.059108][ T6661]  ? __pfx__printk+0x10/0x10
[  237.059127][ T6661]  ? kernfs_root+0x1c/0x230
[  237.059145][ T6661]  ? kernfs_path_from_node+0x250/0x290
[  237.059160][ T6661]  ? kernfs_path_from_node+0x2f/0x290
[  237.059177][ T6661]  sysfs_create_dir_ns+0x259/0x280
[  237.059200][ T6661]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.059221][ T6661]  ? do_raw_spin_unlock+0x122/0x240
[  237.059239][ T6661]  kobject_add_internal+0x59f/0xb40
[  237.059262][ T6661]  kobject_init_and_add+0x125/0x190
[  237.059283][ T6661]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.059302][ T6661]  ? __raw_spin_lock_init+0x45/0x100
[  237.059320][ T6661]  ? __init_swait_queue_head+0xa9/0x150
[  237.059338][ T6661]  gfs2_sys_fs_add+0x234/0x450
[  237.059361][ T6661]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.059385][ T6661]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.059408][ T6661]  gfs2_fill_super+0x13c0/0x20d0
[  237.059432][ T6661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.059451][ T6661]  ? sb_set_blocksize+0x104/0x180
[  237.059470][ T6661]  ? setup_bdev_super+0x4c1/0x5b0
[  237.059489][ T6661]  get_tree_bdev_flags+0x40e/0x4d0
[  237.059507][ T6661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.059524][ T6661]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.059556][ T6661]  gfs2_get_tree+0x51/0x1e0
[  237.059579][ T6661]  vfs_get_tree+0x92/0x2b0
[  237.059597][ T6661]  do_new_mount+0x2a2/0xa30
[  237.059626][ T6661]  ? ns_capable+0x8a/0xf0
[  237.059647][ T6661]  ? __pfx_do_new_mount+0x10/0x10
[  237.059665][ T6661]  ? path_mount+0x61c/0xfe0
[  237.059683][ T6661]  ? user_path_at+0x44/0x60
[  237.059702][ T6661]  __se_sys_mount+0x317/0x410
[  237.059724][ T6661]  ? __pfx___se_sys_mount+0x10/0x10
[  237.059746][ T6661]  ? rcu_is_watching+0x15/0xb0
[  237.059767][ T6661]  ? __x64_sys_mount+0x20/0xc0
[  237.059787][ T6661]  do_syscall_64+0xfa/0xfa0
[  237.059805][ T6661]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.059829][ T6661]  ? clear_bhb_loop+0x60/0xb0
[  237.059848][ T6661]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.059863][ T6661] RIP: 0033:0x7fa4f559038a
[  237.059878][ T6661] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  237.059892][ T6661] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.059912][ T6661] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  237.059926][ T6661] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  237.059939][ T6661] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  237.059960][ T6661] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  237.059972][ T6661] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  237.059990][ T6661]  </TASK>
[  237.060030][ T6661] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  237.378492][ T6661] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.431888][ T5184] Bluetooth: hci1: command 0x0406 tx timeout
[  237.676778][ T6664] loop1: detected capacity change from 0 to 32768
[  237.701394][ T6664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.712848][ T6664] CPU: 1 UID: 0 PID: 6664 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT(full) 
[  237.712872][ T6664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.712884][ T6664] Call Trace:
[  237.712891][ T6664]  <TASK>
[  237.712898][ T6664]  dump_stack_lvl+0x189/0x250
[  237.712923][ T6664]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.712942][ T6664]  ? __pfx__printk+0x10/0x10
[  237.712960][ T6664]  ? kernfs_root+0x1c/0x230
[  237.712977][ T6664]  ? kernfs_path_from_node+0x250/0x290
[  237.712992][ T6664]  ? kernfs_path_from_node+0x2f/0x290
[  237.713014][ T6664]  sysfs_create_dir_ns+0x259/0x280
[  237.713036][ T6664]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.713056][ T6664]  ? do_raw_spin_unlock+0x122/0x240
[  237.713074][ T6664]  kobject_add_internal+0x59f/0xb40
[  237.713098][ T6664]  kobject_init_and_add+0x125/0x190
[  237.713119][ T6664]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.713138][ T6664]  ? __raw_spin_lock_init+0x45/0x100
[  237.713155][ T6664]  ? __init_swait_queue_head+0xa9/0x150
[  237.713172][ T6664]  gfs2_sys_fs_add+0x234/0x450
[  237.713194][ T6664]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.713218][ T6664]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.713241][ T6664]  gfs2_fill_super+0x13c0/0x20d0
[  237.713264][ T6664]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.713281][ T6664]  ? sb_set_blocksize+0x104/0x180
[  237.713302][ T6664]  ? setup_bdev_super+0x4c1/0x5b0
[  237.713322][ T6664]  get_tree_bdev_flags+0x40e/0x4d0
[  237.713340][ T6664]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.713357][ T6664]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.713380][ T6664]  gfs2_get_tree+0x51/0x1e0
[  237.713398][ T6664]  vfs_get_tree+0x92/0x2b0
[  237.713417][ T6664]  do_new_mount+0x2a2/0xa30
[  237.713438][ T6664]  ? ns_capable+0x8a/0xf0
[  237.713458][ T6664]  ? __pfx_do_new_mount+0x10/0x10
[  237.713476][ T6664]  ? path_mount+0x61c/0xfe0
[  237.713494][ T6664]  ? user_path_at+0x44/0x60
[  237.713511][ T6664]  __se_sys_mount+0x317/0x410
[  237.713530][ T6664]  ? __pfx___se_sys_mount+0x10/0x10
[  237.713551][ T6664]  ? rcu_is_watching+0x15/0xb0
[  237.713571][ T6664]  ? __x64_sys_mount+0x20/0xc0
[  237.713590][ T6664]  do_syscall_64+0xfa/0xfa0
[  237.713610][ T6664]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.713626][ T6664]  ? clear_bhb_loop+0x60/0xb0
[  237.713642][ T6664]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.713658][ T6664] RIP: 0033:0x7fa4f559038a
[  237.713674][ T6664] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  237.713689][ T6664] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.713708][ T6664] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  237.713721][ T6664] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  237.713734][ T6664] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  237.713745][ T6664] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  237.713757][ T6664] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  237.713776][ T6664]  </TASK>
[  237.713794][ T6664] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.029368][ T6664] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  238.326519][ T6667] loop1: detected capacity change from 0 to 32768
[  238.341270][ T6667] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.349333][ T6667] CPU: 0 UID: 0 PID: 6667 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT(full) 
[  238.349356][ T6667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.349368][ T6667] Call Trace:
[  238.349376][ T6667]  <TASK>
[  238.349383][ T6667]  dump_stack_lvl+0x189/0x250
[  238.349409][ T6667]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.349427][ T6667]  ? __pfx__printk+0x10/0x10
[  238.349446][ T6667]  ? kernfs_root+0x1c/0x230
[  238.349463][ T6667]  ? kernfs_path_from_node+0x250/0x290
[  238.349477][ T6667]  ? kernfs_path_from_node+0x2f/0x290
[  238.349492][ T6667]  sysfs_create_dir_ns+0x259/0x280
[  238.349515][ T6667]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.349538][ T6667]  ? do_raw_spin_unlock+0x122/0x240
[  238.349555][ T6667]  kobject_add_internal+0x59f/0xb40
[  238.349578][ T6667]  kobject_init_and_add+0x125/0x190
[  238.349600][ T6667]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.349620][ T6667]  ? __raw_spin_lock_init+0x45/0x100
[  238.349638][ T6667]  ? __init_swait_queue_head+0xa9/0x150
[  238.349656][ T6667]  gfs2_sys_fs_add+0x234/0x450
[  238.349677][ T6667]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.349706][ T6667]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.349728][ T6667]  gfs2_fill_super+0x13c0/0x20d0
[  238.349758][ T6667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.349776][ T6667]  ? sb_set_blocksize+0x104/0x180
[  238.349795][ T6667]  ? setup_bdev_super+0x4c1/0x5b0
[  238.349812][ T6667]  get_tree_bdev_flags+0x40e/0x4d0
[  238.349829][ T6667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.349845][ T6667]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.349867][ T6667]  gfs2_get_tree+0x51/0x1e0
[  238.349884][ T6667]  vfs_get_tree+0x92/0x2b0
[  238.349902][ T6667]  do_new_mount+0x2a2/0xa30
[  238.349923][ T6667]  ? ns_capable+0x8a/0xf0
[  238.349944][ T6667]  ? __pfx_do_new_mount+0x10/0x10
[  238.349962][ T6667]  ? path_mount+0x61c/0xfe0
[  238.349980][ T6667]  ? user_path_at+0x44/0x60
[  238.349997][ T6667]  __se_sys_mount+0x317/0x410
[  238.350018][ T6667]  ? __pfx___se_sys_mount+0x10/0x10
[  238.350039][ T6667]  ? rcu_is_watching+0x15/0xb0
[  238.350060][ T6667]  ? __x64_sys_mount+0x20/0xc0
[  238.350081][ T6667]  do_syscall_64+0xfa/0xfa0
[  238.350100][ T6667]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.350115][ T6667]  ? clear_bhb_loop+0x60/0xb0
[  238.350133][ T6667]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.350150][ T6667] RIP: 0033:0x7fa4f559038a
[  238.350164][ T6667] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  238.350179][ T6667] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.350197][ T6667] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  238.350210][ T6667] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  238.350222][ T6667] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  238.350234][ T6667] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  238.350245][ T6667] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  238.350263][ T6667]  </TASK>
[  238.350290][ T6667] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.665901][ T6667] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 15:05:46 executed programs: 204
[  238.959711][ T6670] loop1: detected capacity change from 0 to 32768
[  238.971690][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.979468][ T6670] CPU: 1 UID: 0 PID: 6670 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT(full) 
[  238.979501][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.979512][ T6670] Call Trace:
[  238.979518][ T6670]  <TASK>
[  238.979525][ T6670]  dump_stack_lvl+0x189/0x250
[  238.979550][ T6670]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.979568][ T6670]  ? __pfx__printk+0x10/0x10
[  238.979588][ T6670]  ? kernfs_root+0x1c/0x230
[  238.979604][ T6670]  ? kernfs_path_from_node+0x250/0x290
[  238.979617][ T6670]  ? kernfs_path_from_node+0x2f/0x290
[  238.979633][ T6670]  sysfs_create_dir_ns+0x259/0x280
[  238.979656][ T6670]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.979680][ T6670]  ? do_raw_spin_unlock+0x122/0x240
[  238.979699][ T6670]  kobject_add_internal+0x59f/0xb40
[  238.979722][ T6670]  kobject_init_and_add+0x125/0x190
[  238.979742][ T6670]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.979760][ T6670]  ? __raw_spin_lock_init+0x45/0x100
[  238.979776][ T6670]  ? __init_swait_queue_head+0xa9/0x150
[  238.979792][ T6670]  gfs2_sys_fs_add+0x234/0x450
[  238.979813][ T6670]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.979835][ T6670]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.979857][ T6670]  gfs2_fill_super+0x13c0/0x20d0
[  238.979880][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.979899][ T6670]  ? sb_set_blocksize+0x104/0x180
[  238.979920][ T6670]  ? setup_bdev_super+0x4c1/0x5b0
[  238.979939][ T6670]  get_tree_bdev_flags+0x40e/0x4d0
[  238.979957][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.979975][ T6670]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.979996][ T6670]  gfs2_get_tree+0x51/0x1e0
[  238.980013][ T6670]  vfs_get_tree+0x92/0x2b0
[  238.980032][ T6670]  do_new_mount+0x2a2/0xa30
[  238.980053][ T6670]  ? ns_capable+0x8a/0xf0
[  238.980074][ T6670]  ? __pfx_do_new_mount+0x10/0x10
[  238.980093][ T6670]  ? path_mount+0x61c/0xfe0
[  238.980110][ T6670]  ? user_path_at+0x44/0x60
[  238.980128][ T6670]  __se_sys_mount+0x317/0x410
[  238.980149][ T6670]  ? __pfx___se_sys_mount+0x10/0x10
[  238.980169][ T6670]  ? rcu_is_watching+0x15/0xb0
[  238.980190][ T6670]  ? __x64_sys_mount+0x20/0xc0
[  238.980209][ T6670]  do_syscall_64+0xfa/0xfa0
[  238.980229][ T6670]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.980245][ T6670]  ? clear_bhb_loop+0x60/0xb0
[  238.980262][ T6670]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.980278][ T6670] RIP: 0033:0x7fa4f559038a
[  238.980294][ T6670] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  238.980308][ T6670] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.980328][ T6670] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  238.980341][ T6670] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  238.980352][ T6670] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  238.980363][ T6670] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  238.980375][ T6670] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  238.980394][ T6670]  </TASK>
[  238.980413][ T6670] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.296691][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.594146][ T6673] loop1: detected capacity change from 0 to 32768
[  239.603199][ T6673] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  239.610605][ T6673] CPU: 1 UID: 0 PID: 6673 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT(full) 
[  239.610629][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  239.610641][ T6673] Call Trace:
[  239.610649][ T6673]  <TASK>
[  239.610655][ T6673]  dump_stack_lvl+0x189/0x250
[  239.610681][ T6673]  ? __pfx_dump_stack_lvl+0x10/0x10
[  239.610698][ T6673]  ? __pfx__printk+0x10/0x10
[  239.610718][ T6673]  ? kernfs_root+0x1c/0x230
[  239.610733][ T6673]  ? kernfs_path_from_node+0x250/0x290
[  239.610747][ T6673]  ? kernfs_path_from_node+0x2f/0x290
[  239.610762][ T6673]  sysfs_create_dir_ns+0x259/0x280
[  239.610785][ T6673]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  239.610806][ T6673]  ? do_raw_spin_unlock+0x122/0x240
[  239.610824][ T6673]  kobject_add_internal+0x59f/0xb40
[  239.610848][ T6673]  kobject_init_and_add+0x125/0x190
[  239.610868][ T6673]  ? __pfx_kobject_init_and_add+0x10/0x10
[  239.610888][ T6673]  ? __raw_spin_lock_init+0x45/0x100
[  239.610905][ T6673]  ? __init_swait_queue_head+0xa9/0x150
[  239.610923][ T6673]  gfs2_sys_fs_add+0x234/0x450
[  239.610944][ T6673]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  239.610967][ T6673]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  239.610991][ T6673]  gfs2_fill_super+0x13c0/0x20d0
[  239.611015][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.611034][ T6673]  ? sb_set_blocksize+0x104/0x180
[  239.611055][ T6673]  ? setup_bdev_super+0x4c1/0x5b0
[  239.611075][ T6673]  get_tree_bdev_flags+0x40e/0x4d0
[  239.611092][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.611109][ T6673]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  239.611130][ T6673]  gfs2_get_tree+0x51/0x1e0
[  239.611148][ T6673]  vfs_get_tree+0x92/0x2b0
[  239.611166][ T6673]  do_new_mount+0x2a2/0xa30
[  239.611187][ T6673]  ? ns_capable+0x8a/0xf0
[  239.611208][ T6673]  ? __pfx_do_new_mount+0x10/0x10
[  239.611226][ T6673]  ? path_mount+0x61c/0xfe0
[  239.611244][ T6673]  ? user_path_at+0x44/0x60
[  239.611263][ T6673]  __se_sys_mount+0x317/0x410
[  239.611283][ T6673]  ? __pfx___se_sys_mount+0x10/0x10
[  239.611303][ T6673]  ? rcu_is_watching+0x15/0xb0
[  239.611324][ T6673]  ? __x64_sys_mount+0x20/0xc0
[  239.611345][ T6673]  do_syscall_64+0xfa/0xfa0
[  239.611365][ T6673]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.611382][ T6673]  ? clear_bhb_loop+0x60/0xb0
[  239.611399][ T6673]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.611426][ T6673] RIP: 0033:0x7fa4f559038a
[  239.611442][ T6673] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  239.611455][ T6673] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.611473][ T6673] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  239.611486][ T6673] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  239.611498][ T6673] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  239.611509][ T6673] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  239.611521][ T6673] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  239.611539][ T6673]  </TASK>
[  239.611559][ T6673] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.925919][ T6673] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.211905][ T6676] loop1: detected capacity change from 0 to 32768
[  240.226600][ T6676] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.234428][ T6676] CPU: 0 UID: 0 PID: 6676 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT(full) 
[  240.234452][ T6676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.234463][ T6676] Call Trace:
[  240.234469][ T6676]  <TASK>
[  240.234476][ T6676]  dump_stack_lvl+0x189/0x250
[  240.234500][ T6676]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.234516][ T6676]  ? __pfx__printk+0x10/0x10
[  240.234534][ T6676]  ? kernfs_root+0x1c/0x230
[  240.234550][ T6676]  ? kernfs_path_from_node+0x250/0x290
[  240.234563][ T6676]  ? kernfs_path_from_node+0x2f/0x290
[  240.234579][ T6676]  sysfs_create_dir_ns+0x259/0x280
[  240.234601][ T6676]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.234624][ T6676]  ? do_raw_spin_unlock+0x122/0x240
[  240.234643][ T6676]  kobject_add_internal+0x59f/0xb40
[  240.234675][ T6676]  kobject_init_and_add+0x125/0x190
[  240.234696][ T6676]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.234716][ T6676]  ? __raw_spin_lock_init+0x45/0x100
[  240.234731][ T6676]  ? __init_swait_queue_head+0xa9/0x150
[  240.234748][ T6676]  gfs2_sys_fs_add+0x234/0x450
[  240.234770][ T6676]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.234795][ T6676]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.234819][ T6676]  gfs2_fill_super+0x13c0/0x20d0
[  240.234842][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.234860][ T6676]  ? sb_set_blocksize+0x104/0x180
[  240.234881][ T6676]  ? setup_bdev_super+0x4c1/0x5b0
[  240.234899][ T6676]  get_tree_bdev_flags+0x40e/0x4d0
[  240.234917][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.234934][ T6676]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.234956][ T6676]  gfs2_get_tree+0x51/0x1e0
[  240.234974][ T6676]  vfs_get_tree+0x92/0x2b0
[  240.234992][ T6676]  do_new_mount+0x2a2/0xa30
[  240.235013][ T6676]  ? ns_capable+0x8a/0xf0
[  240.235034][ T6676]  ? __pfx_do_new_mount+0x10/0x10
[  240.235052][ T6676]  ? path_mount+0x61c/0xfe0
[  240.235069][ T6676]  ? user_path_at+0x44/0x60
[  240.235087][ T6676]  __se_sys_mount+0x317/0x410
[  240.235108][ T6676]  ? __pfx___se_sys_mount+0x10/0x10
[  240.235130][ T6676]  ? rcu_is_watching+0x15/0xb0
[  240.235152][ T6676]  ? __x64_sys_mount+0x20/0xc0
[  240.235192][ T6676]  do_syscall_64+0xfa/0xfa0
[  240.235211][ T6676]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.235227][ T6676]  ? clear_bhb_loop+0x60/0xb0
[  240.235244][ T6676]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.235259][ T6676] RIP: 0033:0x7fa4f559038a
[  240.235274][ T6676] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  240.235289][ T6676] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.235307][ T6676] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  240.235320][ T6676] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  240.235332][ T6676] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  240.235344][ T6676] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  240.235355][ T6676] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  240.235373][ T6676]  </TASK>
[  240.235392][ T6676] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.551821][ T6676] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.849713][ T6679] loop1: detected capacity change from 0 to 32768
[  240.862509][ T6679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.869957][ T6679] CPU: 0 UID: 0 PID: 6679 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT(full) 
[  240.869982][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.869993][ T6679] Call Trace:
[  240.870000][ T6679]  <TASK>
[  240.870006][ T6679]  dump_stack_lvl+0x189/0x250
[  240.870031][ T6679]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.870049][ T6679]  ? __pfx__printk+0x10/0x10
[  240.870070][ T6679]  ? kernfs_root+0x1c/0x230
[  240.870087][ T6679]  ? kernfs_path_from_node+0x250/0x290
[  240.870102][ T6679]  ? kernfs_path_from_node+0x2f/0x290
[  240.870119][ T6679]  sysfs_create_dir_ns+0x259/0x280
[  240.870142][ T6679]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.870164][ T6679]  ? do_raw_spin_unlock+0x122/0x240
[  240.870182][ T6679]  kobject_add_internal+0x59f/0xb40
[  240.870206][ T6679]  kobject_init_and_add+0x125/0x190
[  240.870226][ T6679]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.870245][ T6679]  ? __raw_spin_lock_init+0x45/0x100
[  240.870262][ T6679]  ? __init_swait_queue_head+0xa9/0x150
[  240.870289][ T6679]  gfs2_sys_fs_add+0x234/0x450
[  240.870312][ T6679]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.870337][ T6679]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.870360][ T6679]  gfs2_fill_super+0x13c0/0x20d0
[  240.870383][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.870401][ T6679]  ? sb_set_blocksize+0x104/0x180
[  240.870422][ T6679]  ? setup_bdev_super+0x4c1/0x5b0
[  240.870442][ T6679]  get_tree_bdev_flags+0x40e/0x4d0
[  240.870459][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.870476][ T6679]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.870499][ T6679]  gfs2_get_tree+0x51/0x1e0
[  240.870518][ T6679]  vfs_get_tree+0x92/0x2b0
[  240.870535][ T6679]  do_new_mount+0x2a2/0xa30
[  240.870557][ T6679]  ? ns_capable+0x8a/0xf0
[  240.870577][ T6679]  ? __pfx_do_new_mount+0x10/0x10
[  240.870595][ T6679]  ? path_mount+0x61c/0xfe0
[  240.870612][ T6679]  ? user_path_at+0x44/0x60
[  240.870629][ T6679]  __se_sys_mount+0x317/0x410
[  240.870649][ T6679]  ? __pfx___se_sys_mount+0x10/0x10
[  240.870667][ T6679]  ? rcu_is_watching+0x15/0xb0
[  240.870687][ T6679]  ? __x64_sys_mount+0x20/0xc0
[  240.870705][ T6679]  do_syscall_64+0xfa/0xfa0
[  240.870724][ T6679]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.870740][ T6679]  ? clear_bhb_loop+0x60/0xb0
[  240.870757][ T6679]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.870773][ T6679] RIP: 0033:0x7fa4f559038a
[  240.870788][ T6679] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  240.870811][ T6679] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.870831][ T6679] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  240.870844][ T6679] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  240.870856][ T6679] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  240.870867][ T6679] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  240.870878][ T6679] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  240.870896][ T6679]  </TASK>
[  240.870922][ T6679] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.186197][ T6679] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.473541][ T6682] loop1: detected capacity change from 0 to 32768
[  241.489143][ T6682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  241.496600][ T6682] CPU: 1 UID: 0 PID: 6682 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT(full) 
[  241.496624][ T6682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  241.496635][ T6682] Call Trace:
[  241.496642][ T6682]  <TASK>
[  241.496650][ T6682]  dump_stack_lvl+0x189/0x250
[  241.496673][ T6682]  ? __pfx_dump_stack_lvl+0x10/0x10
[  241.496691][ T6682]  ? __pfx__printk+0x10/0x10
[  241.496710][ T6682]  ? kernfs_root+0x1c/0x230
[  241.496727][ T6682]  ? kernfs_path_from_node+0x250/0x290
[  241.496742][ T6682]  ? kernfs_path_from_node+0x2f/0x290
[  241.496759][ T6682]  sysfs_create_dir_ns+0x259/0x280
[  241.496783][ T6682]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  241.496805][ T6682]  ? do_raw_spin_unlock+0x122/0x240
[  241.496823][ T6682]  kobject_add_internal+0x59f/0xb40
[  241.496846][ T6682]  kobject_init_and_add+0x125/0x190
[  241.496867][ T6682]  ? __pfx_kobject_init_and_add+0x10/0x10
[  241.496886][ T6682]  ? __raw_spin_lock_init+0x45/0x100
[  241.496903][ T6682]  ? __init_swait_queue_head+0xa9/0x150
[  241.496920][ T6682]  gfs2_sys_fs_add+0x234/0x450
[  241.496942][ T6682]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  241.496965][ T6682]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  241.496988][ T6682]  gfs2_fill_super+0x13c0/0x20d0
[  241.497012][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  241.497030][ T6682]  ? sb_set_blocksize+0x104/0x180
[  241.497051][ T6682]  ? setup_bdev_super+0x4c1/0x5b0
[  241.497070][ T6682]  get_tree_bdev_flags+0x40e/0x4d0
[  241.497089][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  241.497107][ T6682]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  241.497130][ T6682]  gfs2_get_tree+0x51/0x1e0
[  241.497148][ T6682]  vfs_get_tree+0x92/0x2b0
[  241.497167][ T6682]  do_new_mount+0x2a2/0xa30
[  241.497186][ T6682]  ? ns_capable+0x8a/0xf0
[  241.497207][ T6682]  ? __pfx_do_new_mount+0x10/0x10
[  241.497223][ T6682]  ? path_mount+0x61c/0xfe0
[  241.497240][ T6682]  ? user_path_at+0x44/0x60
[  241.497258][ T6682]  __se_sys_mount+0x317/0x410
[  241.497280][ T6682]  ? __pfx___se_sys_mount+0x10/0x10
[  241.497301][ T6682]  ? rcu_is_watching+0x15/0xb0
[  241.497322][ T6682]  ? __x64_sys_mount+0x20/0xc0
[  241.497341][ T6682]  do_syscall_64+0xfa/0xfa0
[  241.497361][ T6682]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  241.497378][ T6682]  ? clear_bhb_loop+0x60/0xb0
[  241.497394][ T6682]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  241.497409][ T6682] RIP: 0033:0x7fa4f559038a
[  241.497426][ T6682] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  241.497441][ T6682] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  241.497461][ T6682] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  241.497484][ T6682] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  241.497497][ T6682] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  241.497508][ T6682] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  241.497520][ T6682] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  241.497541][ T6682]  </TASK>
[  241.497586][ T6682] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.811600][ T6682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  242.100798][ T6685] loop1: detected capacity change from 0 to 32768
[  242.115580][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.123795][ T6685] CPU: 1 UID: 0 PID: 6685 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT(full) 
[  242.123820][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.123831][ T6685] Call Trace:
[  242.123837][ T6685]  <TASK>
[  242.123845][ T6685]  dump_stack_lvl+0x189/0x250
[  242.123870][ T6685]  ? __pfx_dump_stack_lvl+0x10/0x10
[  242.123901][ T6685]  ? __pfx__printk+0x10/0x10
[  242.123920][ T6685]  ? kernfs_root+0x1c/0x230
[  242.123936][ T6685]  ? kernfs_path_from_node+0x250/0x290
[  242.123949][ T6685]  ? kernfs_path_from_node+0x2f/0x290
[  242.123965][ T6685]  sysfs_create_dir_ns+0x259/0x280
[  242.123989][ T6685]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  242.124012][ T6685]  ? do_raw_spin_unlock+0x122/0x240
[  242.124031][ T6685]  kobject_add_internal+0x59f/0xb40
[  242.124054][ T6685]  kobject_init_and_add+0x125/0x190
[  242.124074][ T6685]  ? __pfx_kobject_init_and_add+0x10/0x10
[  242.124093][ T6685]  ? __raw_spin_lock_init+0x45/0x100
[  242.124109][ T6685]  ? __init_swait_queue_head+0xa9/0x150
[  242.124126][ T6685]  gfs2_sys_fs_add+0x234/0x450
[  242.124156][ T6685]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  242.124180][ T6685]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  242.124202][ T6685]  gfs2_fill_super+0x13c0/0x20d0
[  242.124225][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.124242][ T6685]  ? sb_set_blocksize+0x104/0x180
[  242.124264][ T6685]  ? setup_bdev_super+0x4c1/0x5b0
[  242.124284][ T6685]  get_tree_bdev_flags+0x40e/0x4d0
[  242.124302][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.124318][ T6685]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  242.124340][ T6685]  gfs2_get_tree+0x51/0x1e0
[  242.124358][ T6685]  vfs_get_tree+0x92/0x2b0
[  242.124377][ T6685]  do_new_mount+0x2a2/0xa30
[  242.124397][ T6685]  ? ns_capable+0x8a/0xf0
[  242.124418][ T6685]  ? __pfx_do_new_mount+0x10/0x10
[  242.124436][ T6685]  ? path_mount+0x61c/0xfe0
[  242.124453][ T6685]  ? user_path_at+0x44/0x60
[  242.124472][ T6685]  __se_sys_mount+0x317/0x410
[  242.124492][ T6685]  ? __pfx___se_sys_mount+0x10/0x10
[  242.124511][ T6685]  ? rcu_is_watching+0x15/0xb0
[  242.124532][ T6685]  ? __x64_sys_mount+0x20/0xc0
[  242.124552][ T6685]  do_syscall_64+0xfa/0xfa0
[  242.124571][ T6685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.124587][ T6685]  ? clear_bhb_loop+0x60/0xb0
[  242.124604][ T6685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.124620][ T6685] RIP: 0033:0x7fa4f559038a
[  242.124636][ T6685] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  242.124652][ T6685] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.124670][ T6685] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  242.124683][ T6685] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  242.124695][ T6685] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  242.124707][ T6685] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  242.124718][ T6685] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  242.124738][ T6685]  </TASK>
[  242.124758][ T6685] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  242.439827][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  242.730558][ T6688] loop1: detected capacity change from 0 to 32768
[  242.749749][ T6688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.757565][ T6688] CPU: 1 UID: 0 PID: 6688 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT(full) 
[  242.757590][ T6688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.757601][ T6688] Call Trace:
[  242.757608][ T6688]  <TASK>
[  242.757615][ T6688]  dump_stack_lvl+0x189/0x250
[  242.757645][ T6688]  ? __pfx_dump_stack_lvl+0x10/0x10
[  242.757664][ T6688]  ? __pfx__printk+0x10/0x10
[  242.757684][ T6688]  ? kernfs_root+0x1c/0x230
[  242.757701][ T6688]  ? kernfs_path_from_node+0x250/0x290
[  242.757714][ T6688]  ? kernfs_path_from_node+0x2f/0x290
[  242.757731][ T6688]  sysfs_create_dir_ns+0x259/0x280
[  242.757754][ T6688]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  242.757777][ T6688]  ? do_raw_spin_unlock+0x122/0x240
[  242.757796][ T6688]  kobject_add_internal+0x59f/0xb40
[  242.757819][ T6688]  kobject_init_and_add+0x125/0x190
[  242.757841][ T6688]  ? __pfx_kobject_init_and_add+0x10/0x10
[  242.757861][ T6688]  ? __raw_spin_lock_init+0x45/0x100
[  242.757878][ T6688]  ? __init_swait_queue_head+0xa9/0x150
[  242.757896][ T6688]  gfs2_sys_fs_add+0x234/0x450
[  242.757918][ T6688]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  242.757942][ T6688]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  242.757965][ T6688]  gfs2_fill_super+0x13c0/0x20d0
[  242.757988][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.758007][ T6688]  ? sb_set_blocksize+0x104/0x180
[  242.758029][ T6688]  ? setup_bdev_super+0x4c1/0x5b0
[  242.758049][ T6688]  get_tree_bdev_flags+0x40e/0x4d0
[  242.758067][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.758085][ T6688]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  242.758108][ T6688]  gfs2_get_tree+0x51/0x1e0
[  242.758126][ T6688]  vfs_get_tree+0x92/0x2b0
[  242.758145][ T6688]  do_new_mount+0x2a2/0xa30
[  242.758166][ T6688]  ? ns_capable+0x8a/0xf0
[  242.758187][ T6688]  ? __pfx_do_new_mount+0x10/0x10
[  242.758205][ T6688]  ? path_mount+0x61c/0xfe0
[  242.758223][ T6688]  ? user_path_at+0x44/0x60
[  242.758242][ T6688]  __se_sys_mount+0x317/0x410
[  242.758264][ T6688]  ? __pfx___se_sys_mount+0x10/0x10
[  242.758285][ T6688]  ? rcu_is_watching+0x15/0xb0
[  242.758306][ T6688]  ? __x64_sys_mount+0x20/0xc0
[  242.758327][ T6688]  do_syscall_64+0xfa/0xfa0
[  242.758346][ T6688]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.758363][ T6688]  ? clear_bhb_loop+0x60/0xb0
[  242.758380][ T6688]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.758397][ T6688] RIP: 0033:0x7fa4f559038a
[  242.758419][ T6688] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  242.758434][ T6688] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.758452][ T6688] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  242.758463][ T6688] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  242.758474][ T6688] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  242.758484][ T6688] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  242.758495][ T6688] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  242.758513][ T6688]  </TASK>
[  242.758530][ T6688] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.073832][ T6688] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.365055][ T6691] loop1: detected capacity change from 0 to 32768
[  243.379323][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.386910][ T6691] CPU: 1 UID: 0 PID: 6691 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT(full) 
[  243.386934][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  243.386944][ T6691] Call Trace:
[  243.386951][ T6691]  <TASK>
[  243.386957][ T6691]  dump_stack_lvl+0x189/0x250
[  243.386983][ T6691]  ? __pfx_dump_stack_lvl+0x10/0x10
[  243.387002][ T6691]  ? __pfx__printk+0x10/0x10
[  243.387022][ T6691]  ? kernfs_root+0x1c/0x230
[  243.387040][ T6691]  ? kernfs_path_from_node+0x250/0x290
[  243.387055][ T6691]  ? kernfs_path_from_node+0x2f/0x290
[  243.387070][ T6691]  sysfs_create_dir_ns+0x259/0x280
[  243.387103][ T6691]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  243.387124][ T6691]  ? do_raw_spin_unlock+0x122/0x240
[  243.387142][ T6691]  kobject_add_internal+0x59f/0xb40
[  243.387164][ T6691]  kobject_init_and_add+0x125/0x190
[  243.387186][ T6691]  ? __pfx_kobject_init_and_add+0x10/0x10
[  243.387205][ T6691]  ? __raw_spin_lock_init+0x45/0x100
[  243.387221][ T6691]  ? __init_swait_queue_head+0xa9/0x150
[  243.387238][ T6691]  gfs2_sys_fs_add+0x234/0x450
[  243.387260][ T6691]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  243.387284][ T6691]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  243.387307][ T6691]  gfs2_fill_super+0x13c0/0x20d0
[  243.387328][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  243.387346][ T6691]  ? sb_set_blocksize+0x104/0x180
[  243.387367][ T6691]  ? setup_bdev_super+0x4c1/0x5b0
[  243.387386][ T6691]  get_tree_bdev_flags+0x40e/0x4d0
[  243.387405][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  243.387423][ T6691]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  243.387446][ T6691]  gfs2_get_tree+0x51/0x1e0
[  243.387463][ T6691]  vfs_get_tree+0x92/0x2b0
[  243.387482][ T6691]  do_new_mount+0x2a2/0xa30
[  243.387502][ T6691]  ? ns_capable+0x8a/0xf0
[  243.387522][ T6691]  ? __pfx_do_new_mount+0x10/0x10
[  243.387541][ T6691]  ? path_mount+0x61c/0xfe0
[  243.387559][ T6691]  ? user_path_at+0x44/0x60
[  243.387577][ T6691]  __se_sys_mount+0x317/0x410
[  243.387598][ T6691]  ? __pfx___se_sys_mount+0x10/0x10
[  243.387618][ T6691]  ? rcu_is_watching+0x15/0xb0
[  243.387640][ T6691]  ? __x64_sys_mount+0x20/0xc0
[  243.387661][ T6691]  do_syscall_64+0xfa/0xfa0
[  243.387680][ T6691]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  243.387696][ T6691]  ? clear_bhb_loop+0x60/0xb0
[  243.387713][ T6691]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  243.387728][ T6691] RIP: 0033:0x7fa4f559038a
[  243.387745][ T6691] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  243.387759][ T6691] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.387778][ T6691] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  243.387792][ T6691] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  243.387804][ T6691] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  243.387815][ T6691] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  243.387826][ T6691] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  243.387845][ T6691]  </TASK>
[  243.387865][ T6691] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.702916][ T6691] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 15:05:51 executed programs: 212
[  243.999415][ T6694] loop1: detected capacity change from 0 to 32768
[  244.007878][ T6694] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.015498][ T6694] CPU: 1 UID: 0 PID: 6694 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT(full) 
[  244.015521][ T6694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  244.015532][ T6694] Call Trace:
[  244.015539][ T6694]  <TASK>
[  244.015547][ T6694]  dump_stack_lvl+0x189/0x250
[  244.015572][ T6694]  ? __pfx_dump_stack_lvl+0x10/0x10
[  244.015589][ T6694]  ? __pfx__printk+0x10/0x10
[  244.015609][ T6694]  ? kernfs_root+0x1c/0x230
[  244.015626][ T6694]  ? kernfs_path_from_node+0x250/0x290
[  244.015639][ T6694]  ? kernfs_path_from_node+0x2f/0x290
[  244.015659][ T6694]  sysfs_create_dir_ns+0x259/0x280
[  244.015683][ T6694]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  244.015706][ T6694]  ? do_raw_spin_unlock+0x122/0x240
[  244.015726][ T6694]  kobject_add_internal+0x59f/0xb40
[  244.015750][ T6694]  kobject_init_and_add+0x125/0x190
[  244.015771][ T6694]  ? __pfx_kobject_init_and_add+0x10/0x10
[  244.015787][ T6694]  ? __raw_spin_lock_init+0x45/0x100
[  244.015801][ T6694]  ? __init_swait_queue_head+0xa9/0x150
[  244.015818][ T6694]  gfs2_sys_fs_add+0x234/0x450
[  244.015838][ T6694]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  244.015860][ T6694]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  244.015879][ T6694]  gfs2_fill_super+0x13c0/0x20d0
[  244.015901][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.015920][ T6694]  ? sb_set_blocksize+0x104/0x180
[  244.015941][ T6694]  ? setup_bdev_super+0x4c1/0x5b0
[  244.015959][ T6694]  get_tree_bdev_flags+0x40e/0x4d0
[  244.015977][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.015995][ T6694]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  244.016017][ T6694]  gfs2_get_tree+0x51/0x1e0
[  244.016034][ T6694]  vfs_get_tree+0x92/0x2b0
[  244.016053][ T6694]  do_new_mount+0x2a2/0xa30
[  244.016075][ T6694]  ? ns_capable+0x8a/0xf0
[  244.016096][ T6694]  ? __pfx_do_new_mount+0x10/0x10
[  244.016125][ T6694]  ? path_mount+0x61c/0xfe0
[  244.016143][ T6694]  ? user_path_at+0x44/0x60
[  244.016161][ T6694]  __se_sys_mount+0x317/0x410
[  244.016183][ T6694]  ? __pfx___se_sys_mount+0x10/0x10
[  244.016212][ T6694]  ? rcu_is_watching+0x15/0xb0
[  244.016232][ T6694]  ? __x64_sys_mount+0x20/0xc0
[  244.016252][ T6694]  do_syscall_64+0xfa/0xfa0
[  244.016271][ T6694]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.016288][ T6694]  ? clear_bhb_loop+0x60/0xb0
[  244.016305][ T6694]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.016321][ T6694] RIP: 0033:0x7fa4f559038a
[  244.016346][ T6694] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  244.016361][ T6694] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.016380][ T6694] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  244.016393][ T6694] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  244.016405][ T6694] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  244.016417][ T6694] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  244.016429][ T6694] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  244.016447][ T6694]  </TASK>
[  244.016466][ T6694] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.331705][ T6694] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.624356][ T6697] loop1: detected capacity change from 0 to 32768
[  244.647024][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.654889][ T6697] CPU: 0 UID: 0 PID: 6697 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT(full) 
[  244.654913][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  244.654924][ T6697] Call Trace:
[  244.654931][ T6697]  <TASK>
[  244.654939][ T6697]  dump_stack_lvl+0x189/0x250
[  244.654965][ T6697]  ? __pfx_dump_stack_lvl+0x10/0x10
[  244.654984][ T6697]  ? __pfx__printk+0x10/0x10
[  244.655004][ T6697]  ? kernfs_root+0x1c/0x230
[  244.655020][ T6697]  ? kernfs_path_from_node+0x250/0x290
[  244.655036][ T6697]  ? kernfs_path_from_node+0x2f/0x290
[  244.655052][ T6697]  sysfs_create_dir_ns+0x259/0x280
[  244.655075][ T6697]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  244.655098][ T6697]  ? do_raw_spin_unlock+0x122/0x240
[  244.655117][ T6697]  kobject_add_internal+0x59f/0xb40
[  244.655141][ T6697]  kobject_init_and_add+0x125/0x190
[  244.655171][ T6697]  ? __pfx_kobject_init_and_add+0x10/0x10
[  244.655191][ T6697]  ? __raw_spin_lock_init+0x45/0x100
[  244.655208][ T6697]  ? __init_swait_queue_head+0xa9/0x150
[  244.655226][ T6697]  gfs2_sys_fs_add+0x234/0x450
[  244.655248][ T6697]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  244.655272][ T6697]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  244.655295][ T6697]  gfs2_fill_super+0x13c0/0x20d0
[  244.655318][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.655337][ T6697]  ? sb_set_blocksize+0x104/0x180
[  244.655359][ T6697]  ? setup_bdev_super+0x4c1/0x5b0
[  244.655379][ T6697]  get_tree_bdev_flags+0x40e/0x4d0
[  244.655398][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.655416][ T6697]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  244.655439][ T6697]  gfs2_get_tree+0x51/0x1e0
[  244.655458][ T6697]  vfs_get_tree+0x92/0x2b0
[  244.655477][ T6697]  do_new_mount+0x2a2/0xa30
[  244.655498][ T6697]  ? ns_capable+0x8a/0xf0
[  244.655520][ T6697]  ? __pfx_do_new_mount+0x10/0x10
[  244.655539][ T6697]  ? path_mount+0x61c/0xfe0
[  244.655557][ T6697]  ? user_path_at+0x44/0x60
[  244.655576][ T6697]  __se_sys_mount+0x317/0x410
[  244.655597][ T6697]  ? __pfx___se_sys_mount+0x10/0x10
[  244.655619][ T6697]  ? rcu_is_watching+0x15/0xb0
[  244.655639][ T6697]  ? __x64_sys_mount+0x20/0xc0
[  244.655664][ T6697]  do_syscall_64+0xfa/0xfa0
[  244.655683][ T6697]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.655700][ T6697]  ? clear_bhb_loop+0x60/0xb0
[  244.655718][ T6697]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.655734][ T6697] RIP: 0033:0x7fa4f559038a
[  244.655749][ T6697] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  244.655764][ T6697] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.655783][ T6697] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  244.655797][ T6697] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  244.655809][ T6697] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  244.655821][ T6697] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  244.655833][ T6697] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  244.655852][ T6697]  </TASK>
[  244.655871][ T6697] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.972895][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.264413][ T6700] loop1: detected capacity change from 0 to 32768
[  245.289583][ T6700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.298380][ T6700] CPU: 1 UID: 0 PID: 6700 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT(full) 
[  245.298406][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  245.298417][ T6700] Call Trace:
[  245.298425][ T6700]  <TASK>
[  245.298432][ T6700]  dump_stack_lvl+0x189/0x250
[  245.298457][ T6700]  ? __pfx_dump_stack_lvl+0x10/0x10
[  245.298475][ T6700]  ? __pfx__printk+0x10/0x10
[  245.298495][ T6700]  ? kernfs_root+0x1c/0x230
[  245.298513][ T6700]  ? kernfs_path_from_node+0x250/0x290
[  245.298528][ T6700]  ? kernfs_path_from_node+0x2f/0x290
[  245.298545][ T6700]  sysfs_create_dir_ns+0x259/0x280
[  245.298568][ T6700]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  245.298591][ T6700]  ? do_raw_spin_unlock+0x122/0x240
[  245.298609][ T6700]  kobject_add_internal+0x59f/0xb40
[  245.298633][ T6700]  kobject_init_and_add+0x125/0x190
[  245.298654][ T6700]  ? __pfx_kobject_init_and_add+0x10/0x10
[  245.298681][ T6700]  ? __raw_spin_lock_init+0x45/0x100
[  245.298698][ T6700]  ? __init_swait_queue_head+0xa9/0x150
[  245.298715][ T6700]  gfs2_sys_fs_add+0x234/0x450
[  245.298738][ T6700]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  245.298762][ T6700]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  245.298785][ T6700]  gfs2_fill_super+0x13c0/0x20d0
[  245.298809][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.298829][ T6700]  ? sb_set_blocksize+0x104/0x180
[  245.298851][ T6700]  ? setup_bdev_super+0x4c1/0x5b0
[  245.298871][ T6700]  get_tree_bdev_flags+0x40e/0x4d0
[  245.298889][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.298906][ T6700]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  245.298929][ T6700]  gfs2_get_tree+0x51/0x1e0
[  245.298948][ T6700]  vfs_get_tree+0x92/0x2b0
[  245.298966][ T6700]  do_new_mount+0x2a2/0xa30
[  245.298987][ T6700]  ? ns_capable+0x8a/0xf0
[  245.299008][ T6700]  ? __pfx_do_new_mount+0x10/0x10
[  245.299025][ T6700]  ? path_mount+0x61c/0xfe0
[  245.299043][ T6700]  ? user_path_at+0x44/0x60
[  245.299061][ T6700]  __se_sys_mount+0x317/0x410
[  245.299083][ T6700]  ? __pfx___se_sys_mount+0x10/0x10
[  245.299104][ T6700]  ? rcu_is_watching+0x15/0xb0
[  245.299125][ T6700]  ? __x64_sys_mount+0x20/0xc0
[  245.299146][ T6700]  do_syscall_64+0xfa/0xfa0
[  245.299173][ T6700]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.299190][ T6700]  ? clear_bhb_loop+0x60/0xb0
[  245.299207][ T6700]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.299224][ T6700] RIP: 0033:0x7fa4f559038a
[  245.299239][ T6700] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  245.299255][ T6700] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.299274][ T6700] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  245.299288][ T6700] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  245.299301][ T6700] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  245.299313][ T6700] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  245.299325][ T6700] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  245.299343][ T6700]  </TASK>
[  245.299361][ T6700] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.614417][ T6700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.912741][ T6703] loop1: detected capacity change from 0 to 32768
[  245.922733][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.930156][ T6703] CPU: 0 UID: 0 PID: 6703 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT(full) 
[  245.930179][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  245.930189][ T6703] Call Trace:
[  245.930196][ T6703]  <TASK>
[  245.930203][ T6703]  dump_stack_lvl+0x189/0x250
[  245.930228][ T6703]  ? __pfx_dump_stack_lvl+0x10/0x10
[  245.930247][ T6703]  ? __pfx__printk+0x10/0x10
[  245.930267][ T6703]  ? kernfs_root+0x1c/0x230
[  245.930284][ T6703]  ? kernfs_path_from_node+0x250/0x290
[  245.930299][ T6703]  ? kernfs_path_from_node+0x2f/0x290
[  245.930314][ T6703]  sysfs_create_dir_ns+0x259/0x280
[  245.930337][ T6703]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  245.930359][ T6703]  ? do_raw_spin_unlock+0x122/0x240
[  245.930377][ T6703]  kobject_add_internal+0x59f/0xb40
[  245.930402][ T6703]  kobject_init_and_add+0x125/0x190
[  245.930422][ T6703]  ? __pfx_kobject_init_and_add+0x10/0x10
[  245.930442][ T6703]  ? __raw_spin_lock_init+0x45/0x100
[  245.930459][ T6703]  ? __init_swait_queue_head+0xa9/0x150
[  245.930478][ T6703]  gfs2_sys_fs_add+0x234/0x450
[  245.930501][ T6703]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  245.930524][ T6703]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  245.930546][ T6703]  gfs2_fill_super+0x13c0/0x20d0
[  245.930569][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.930587][ T6703]  ? sb_set_blocksize+0x104/0x180
[  245.930607][ T6703]  ? setup_bdev_super+0x4c1/0x5b0
[  245.930626][ T6703]  get_tree_bdev_flags+0x40e/0x4d0
[  245.930644][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.930661][ T6703]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  245.930683][ T6703]  gfs2_get_tree+0x51/0x1e0
[  245.930701][ T6703]  vfs_get_tree+0x92/0x2b0
[  245.930719][ T6703]  do_new_mount+0x2a2/0xa30
[  245.930739][ T6703]  ? ns_capable+0x8a/0xf0
[  245.930769][ T6703]  ? __pfx_do_new_mount+0x10/0x10
[  245.930787][ T6703]  ? path_mount+0x61c/0xfe0
[  245.930805][ T6703]  ? user_path_at+0x44/0x60
[  245.930824][ T6703]  __se_sys_mount+0x317/0x410
[  245.930846][ T6703]  ? __pfx___se_sys_mount+0x10/0x10
[  245.930868][ T6703]  ? rcu_is_watching+0x15/0xb0
[  245.930888][ T6703]  ? __x64_sys_mount+0x20/0xc0
[  245.930907][ T6703]  do_syscall_64+0xfa/0xfa0
[  245.930926][ T6703]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.930941][ T6703]  ? clear_bhb_loop+0x60/0xb0
[  245.930958][ T6703]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.930973][ T6703] RIP: 0033:0x7fa4f559038a
[  245.930989][ T6703] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  245.931004][ T6703] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.931023][ T6703] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  245.931036][ T6703] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  245.931048][ T6703] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  245.931059][ T6703] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  245.931071][ T6703] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  245.931089][ T6703]  </TASK>
[  245.931108][ T6703] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.246627][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.538240][ T6706] loop1: detected capacity change from 0 to 32768
[  246.549356][ T6706] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.557976][ T6706] CPU: 0 UID: 0 PID: 6706 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT(full) 
[  246.558000][ T6706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  246.558011][ T6706] Call Trace:
[  246.558018][ T6706]  <TASK>
[  246.558026][ T6706]  dump_stack_lvl+0x189/0x250
[  246.558051][ T6706]  ? __pfx_dump_stack_lvl+0x10/0x10
[  246.558068][ T6706]  ? __pfx__printk+0x10/0x10
[  246.558087][ T6706]  ? kernfs_root+0x1c/0x230
[  246.558103][ T6706]  ? kernfs_path_from_node+0x250/0x290
[  246.558117][ T6706]  ? kernfs_path_from_node+0x2f/0x290
[  246.558132][ T6706]  sysfs_create_dir_ns+0x259/0x280
[  246.558154][ T6706]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  246.558175][ T6706]  ? do_raw_spin_unlock+0x122/0x240
[  246.558194][ T6706]  kobject_add_internal+0x59f/0xb40
[  246.558217][ T6706]  kobject_init_and_add+0x125/0x190
[  246.558238][ T6706]  ? __pfx_kobject_init_and_add+0x10/0x10
[  246.558256][ T6706]  ? __raw_spin_lock_init+0x45/0x100
[  246.558272][ T6706]  ? __init_swait_queue_head+0xa9/0x150
[  246.558288][ T6706]  gfs2_sys_fs_add+0x234/0x450
[  246.558311][ T6706]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  246.558335][ T6706]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  246.558356][ T6706]  gfs2_fill_super+0x13c0/0x20d0
[  246.558379][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.558397][ T6706]  ? sb_set_blocksize+0x104/0x180
[  246.558419][ T6706]  ? setup_bdev_super+0x4c1/0x5b0
[  246.558440][ T6706]  get_tree_bdev_flags+0x40e/0x4d0
[  246.558458][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.558475][ T6706]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  246.558497][ T6706]  gfs2_get_tree+0x51/0x1e0
[  246.558514][ T6706]  vfs_get_tree+0x92/0x2b0
[  246.558532][ T6706]  do_new_mount+0x2a2/0xa30
[  246.558552][ T6706]  ? ns_capable+0x8a/0xf0
[  246.558570][ T6706]  ? __pfx_do_new_mount+0x10/0x10
[  246.558588][ T6706]  ? path_mount+0x61c/0xfe0
[  246.558605][ T6706]  ? user_path_at+0x44/0x60
[  246.558624][ T6706]  __se_sys_mount+0x317/0x410
[  246.558644][ T6706]  ? __pfx___se_sys_mount+0x10/0x10
[  246.558665][ T6706]  ? rcu_is_watching+0x15/0xb0
[  246.558686][ T6706]  ? __x64_sys_mount+0x20/0xc0
[  246.558705][ T6706]  do_syscall_64+0xfa/0xfa0
[  246.558724][ T6706]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.558750][ T6706]  ? clear_bhb_loop+0x60/0xb0
[  246.558766][ T6706]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.558782][ T6706] RIP: 0033:0x7fa4f559038a
[  246.558797][ T6706] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  246.558813][ T6706] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.558833][ T6706] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  246.558847][ T6706] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  246.558860][ T6706] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  246.558871][ T6706] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  246.558882][ T6706] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  246.558900][ T6706]  </TASK>
[  246.558925][ T6706] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.873613][ T6706] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.169880][ T6709] loop1: detected capacity change from 0 to 32768
[  247.221693][ T6709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.229589][ T6709] CPU: 1 UID: 0 PID: 6709 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT(full) 
[  247.229615][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  247.229627][ T6709] Call Trace:
[  247.229634][ T6709]  <TASK>
[  247.229641][ T6709]  dump_stack_lvl+0x189/0x250
[  247.229667][ T6709]  ? __pfx_dump_stack_lvl+0x10/0x10
[  247.229687][ T6709]  ? __pfx__printk+0x10/0x10
[  247.229708][ T6709]  ? kernfs_root+0x1c/0x230
[  247.229725][ T6709]  ? kernfs_path_from_node+0x250/0x290
[  247.229742][ T6709]  ? kernfs_path_from_node+0x2f/0x290
[  247.229758][ T6709]  sysfs_create_dir_ns+0x259/0x280
[  247.229782][ T6709]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  247.229806][ T6709]  ? do_raw_spin_unlock+0x122/0x240
[  247.229826][ T6709]  kobject_add_internal+0x59f/0xb40
[  247.229850][ T6709]  kobject_init_and_add+0x125/0x190
[  247.229872][ T6709]  ? __pfx_kobject_init_and_add+0x10/0x10
[  247.229892][ T6709]  ? __raw_spin_lock_init+0x45/0x100
[  247.229911][ T6709]  ? __init_swait_queue_head+0xa9/0x150
[  247.229930][ T6709]  gfs2_sys_fs_add+0x234/0x450
[  247.229962][ T6709]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  247.229986][ T6709]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  247.230010][ T6709]  gfs2_fill_super+0x13c0/0x20d0
[  247.230034][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.230053][ T6709]  ? sb_set_blocksize+0x104/0x180
[  247.230074][ T6709]  ? setup_bdev_super+0x4c1/0x5b0
[  247.230094][ T6709]  get_tree_bdev_flags+0x40e/0x4d0
[  247.230114][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.230132][ T6709]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  247.230155][ T6709]  gfs2_get_tree+0x51/0x1e0
[  247.230175][ T6709]  vfs_get_tree+0x92/0x2b0
[  247.230195][ T6709]  do_new_mount+0x2a2/0xa30
[  247.230217][ T6709]  ? ns_capable+0x8a/0xf0
[  247.230239][ T6709]  ? __pfx_do_new_mount+0x10/0x10
[  247.230258][ T6709]  ? path_mount+0x61c/0xfe0
[  247.230277][ T6709]  ? user_path_at+0x44/0x60
[  247.230297][ T6709]  __se_sys_mount+0x317/0x410
[  247.230320][ T6709]  ? __pfx___se_sys_mount+0x10/0x10
[  247.230343][ T6709]  ? rcu_is_watching+0x15/0xb0
[  247.230365][ T6709]  ? __x64_sys_mount+0x20/0xc0
[  247.230385][ T6709]  do_syscall_64+0xfa/0xfa0
[  247.230404][ T6709]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.230422][ T6709]  ? clear_bhb_loop+0x60/0xb0
[  247.230441][ T6709]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.230458][ T6709] RIP: 0033:0x7fa4f559038a
[  247.230475][ T6709] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  247.230491][ T6709] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.230510][ T6709] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  247.230524][ T6709] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  247.230537][ T6709] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  247.230550][ T6709] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  247.230562][ T6709] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  247.230583][ T6709]  </TASK>
[  247.230602][ T6709] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.548527][ T6709] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.828737][ T6712] loop1: detected capacity change from 0 to 32768
[  247.838242][ T6712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.846055][ T6712] CPU: 1 UID: 0 PID: 6712 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT(full) 
[  247.846076][ T6712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  247.846086][ T6712] Call Trace:
[  247.846094][ T6712]  <TASK>
[  247.846101][ T6712]  dump_stack_lvl+0x189/0x250
[  247.846124][ T6712]  ? __pfx_dump_stack_lvl+0x10/0x10
[  247.846142][ T6712]  ? __pfx__printk+0x10/0x10
[  247.846161][ T6712]  ? kernfs_root+0x1c/0x230
[  247.846178][ T6712]  ? kernfs_path_from_node+0x250/0x290
[  247.846193][ T6712]  ? kernfs_path_from_node+0x2f/0x290
[  247.846209][ T6712]  sysfs_create_dir_ns+0x259/0x280
[  247.846233][ T6712]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  247.846253][ T6712]  ? do_raw_spin_unlock+0x122/0x240
[  247.846272][ T6712]  kobject_add_internal+0x59f/0xb40
[  247.846295][ T6712]  kobject_init_and_add+0x125/0x190
[  247.846315][ T6712]  ? __pfx_kobject_init_and_add+0x10/0x10
[  247.846333][ T6712]  ? __raw_spin_lock_init+0x45/0x100
[  247.846348][ T6712]  ? __init_swait_queue_head+0xa9/0x150
[  247.846365][ T6712]  gfs2_sys_fs_add+0x234/0x450
[  247.846387][ T6712]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  247.846410][ T6712]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  247.846433][ T6712]  gfs2_fill_super+0x13c0/0x20d0
[  247.846456][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.846474][ T6712]  ? sb_set_blocksize+0x104/0x180
[  247.846494][ T6712]  ? setup_bdev_super+0x4c1/0x5b0
[  247.846513][ T6712]  get_tree_bdev_flags+0x40e/0x4d0
[  247.846533][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.846551][ T6712]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  247.846573][ T6712]  gfs2_get_tree+0x51/0x1e0
[  247.846590][ T6712]  vfs_get_tree+0x92/0x2b0
[  247.846609][ T6712]  do_new_mount+0x2a2/0xa30
[  247.846629][ T6712]  ? ns_capable+0x8a/0xf0
[  247.846649][ T6712]  ? __pfx_do_new_mount+0x10/0x10
[  247.846667][ T6712]  ? path_mount+0x61c/0xfe0
[  247.846696][ T6712]  ? user_path_at+0x44/0x60
[  247.846715][ T6712]  __se_sys_mount+0x317/0x410
[  247.846736][ T6712]  ? __pfx___se_sys_mount+0x10/0x10
[  247.846757][ T6712]  ? rcu_is_watching+0x15/0xb0
[  247.846778][ T6712]  ? __x64_sys_mount+0x20/0xc0
[  247.846798][ T6712]  do_syscall_64+0xfa/0xfa0
[  247.846816][ T6712]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.846831][ T6712]  ? clear_bhb_loop+0x60/0xb0
[  247.846849][ T6712]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.846866][ T6712] RIP: 0033:0x7fa4f559038a
[  247.846882][ T6712] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  247.846897][ T6712] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.846917][ T6712] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  247.846929][ T6712] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  247.846942][ T6712] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  247.846953][ T6712] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  247.846964][ T6712] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  247.846982][ T6712]  </TASK>
[  247.847001][ T6712] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.162161][ T6712] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  248.457407][ T6715] loop1: detected capacity change from 0 to 32768
[  248.467734][ T6715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  248.476033][ T6715] CPU: 0 UID: 0 PID: 6715 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  248.476054][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  248.476064][ T6715] Call Trace:
[  248.476072][ T6715]  <TASK>
[  248.476078][ T6715]  dump_stack_lvl+0x189/0x250
[  248.476100][ T6715]  ? __pfx_dump_stack_lvl+0x10/0x10
[  248.476119][ T6715]  ? __pfx__printk+0x10/0x10
[  248.476138][ T6715]  ? kernfs_root+0x1c/0x230
[  248.476153][ T6715]  ? kernfs_path_from_node+0x250/0x290
[  248.476166][ T6715]  ? kernfs_path_from_node+0x2f/0x290
[  248.476180][ T6715]  sysfs_create_dir_ns+0x259/0x280
[  248.476202][ T6715]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  248.476223][ T6715]  ? do_raw_spin_unlock+0x122/0x240
[  248.476241][ T6715]  kobject_add_internal+0x59f/0xb40
[  248.476265][ T6715]  kobject_init_and_add+0x125/0x190
[  248.476306][ T6715]  ? __pfx_kobject_init_and_add+0x10/0x10
[  248.476324][ T6715]  ? __raw_spin_lock_init+0x45/0x100
[  248.476341][ T6715]  ? __init_swait_queue_head+0xa9/0x150
[  248.476359][ T6715]  gfs2_sys_fs_add+0x234/0x450
[  248.476382][ T6715]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  248.476406][ T6715]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  248.476428][ T6715]  gfs2_fill_super+0x13c0/0x20d0
[  248.476451][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  248.476468][ T6715]  ? sb_set_blocksize+0x104/0x180
[  248.476489][ T6715]  ? setup_bdev_super+0x4c1/0x5b0
[  248.476507][ T6715]  get_tree_bdev_flags+0x40e/0x4d0
[  248.476523][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  248.476540][ T6715]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  248.476562][ T6715]  gfs2_get_tree+0x51/0x1e0
[  248.476579][ T6715]  vfs_get_tree+0x92/0x2b0
[  248.476597][ T6715]  do_new_mount+0x2a2/0xa30
[  248.476618][ T6715]  ? ns_capable+0x8a/0xf0
[  248.476638][ T6715]  ? __pfx_do_new_mount+0x10/0x10
[  248.476657][ T6715]  ? path_mount+0x61c/0xfe0
[  248.476674][ T6715]  ? user_path_at+0x44/0x60
[  248.476692][ T6715]  __se_sys_mount+0x317/0x410
[  248.476713][ T6715]  ? __pfx___se_sys_mount+0x10/0x10
[  248.476734][ T6715]  ? rcu_is_watching+0x15/0xb0
[  248.476756][ T6715]  ? __x64_sys_mount+0x20/0xc0
[  248.476785][ T6715]  do_syscall_64+0xfa/0xfa0
[  248.476804][ T6715]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  248.476820][ T6715]  ? clear_bhb_loop+0x60/0xb0
[  248.476838][ T6715]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  248.476853][ T6715] RIP: 0033:0x7fa4f559038a
[  248.476868][ T6715] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  248.476882][ T6715] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  248.476901][ T6715] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  248.476914][ T6715] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  248.476926][ T6715] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  248.476938][ T6715] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  248.476949][ T6715] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  248.476967][ T6715]  </TASK>
[  248.477008][ T6715] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.791369][ T6715] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 15:05:57 executed programs: 220
[  249.089881][ T6718] loop1: detected capacity change from 0 to 32768
[  249.100429][ T6718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.108185][ T6718] CPU: 1 UID: 0 PID: 6718 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT(full) 
[  249.108208][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  249.108219][ T6718] Call Trace:
[  249.108226][ T6718]  <TASK>
[  249.108233][ T6718]  dump_stack_lvl+0x189/0x250
[  249.108256][ T6718]  ? __pfx_dump_stack_lvl+0x10/0x10
[  249.108275][ T6718]  ? __pfx__printk+0x10/0x10
[  249.108294][ T6718]  ? kernfs_root+0x1c/0x230
[  249.108311][ T6718]  ? kernfs_path_from_node+0x250/0x290
[  249.108326][ T6718]  ? kernfs_path_from_node+0x2f/0x290
[  249.108343][ T6718]  sysfs_create_dir_ns+0x259/0x280
[  249.108367][ T6718]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.108387][ T6718]  ? do_raw_spin_unlock+0x122/0x240
[  249.108406][ T6718]  kobject_add_internal+0x59f/0xb40
[  249.108429][ T6718]  kobject_init_and_add+0x125/0x190
[  249.108450][ T6718]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.108469][ T6718]  ? __raw_spin_lock_init+0x45/0x100
[  249.108485][ T6718]  ? __init_swait_queue_head+0xa9/0x150
[  249.108502][ T6718]  gfs2_sys_fs_add+0x234/0x450
[  249.108526][ T6718]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.108548][ T6718]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.108570][ T6718]  gfs2_fill_super+0x13c0/0x20d0
[  249.108593][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.108612][ T6718]  ? sb_set_blocksize+0x104/0x180
[  249.108632][ T6718]  ? setup_bdev_super+0x4c1/0x5b0
[  249.108651][ T6718]  get_tree_bdev_flags+0x40e/0x4d0
[  249.108669][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.108688][ T6718]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.108710][ T6718]  gfs2_get_tree+0x51/0x1e0
[  249.108729][ T6718]  vfs_get_tree+0x92/0x2b0
[  249.108747][ T6718]  do_new_mount+0x2a2/0xa30
[  249.108768][ T6718]  ? ns_capable+0x8a/0xf0
[  249.108790][ T6718]  ? __pfx_do_new_mount+0x10/0x10
[  249.108820][ T6718]  ? path_mount+0x61c/0xfe0
[  249.108838][ T6718]  ? user_path_at+0x44/0x60
[  249.108858][ T6718]  __se_sys_mount+0x317/0x410
[  249.108881][ T6718]  ? __pfx___se_sys_mount+0x10/0x10
[  249.108903][ T6718]  ? rcu_is_watching+0x15/0xb0
[  249.108924][ T6718]  ? __x64_sys_mount+0x20/0xc0
[  249.108945][ T6718]  do_syscall_64+0xfa/0xfa0
[  249.108965][ T6718]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.108983][ T6718]  ? clear_bhb_loop+0x60/0xb0
[  249.109000][ T6718]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.109016][ T6718] RIP: 0033:0x7fa4f559038a
[  249.109033][ T6718] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  249.109049][ T6718] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.109070][ T6718] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  249.109084][ T6718] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  249.109098][ T6718] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  249.109110][ T6718] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  249.109122][ T6718] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  249.109141][ T6718]  </TASK>
[  249.109161][ T6718] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.425679][ T6718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.706828][ T6721] loop1: detected capacity change from 0 to 32768
[  249.717744][ T6721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.725418][ T6721] CPU: 1 UID: 0 PID: 6721 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full) 
[  249.725441][ T6721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  249.725451][ T6721] Call Trace:
[  249.725467][ T6721]  <TASK>
[  249.725473][ T6721]  dump_stack_lvl+0x189/0x250
[  249.725495][ T6721]  ? __pfx_dump_stack_lvl+0x10/0x10
[  249.725511][ T6721]  ? __pfx__printk+0x10/0x10
[  249.725530][ T6721]  ? kernfs_root+0x1c/0x230
[  249.725544][ T6721]  ? kernfs_path_from_node+0x250/0x290
[  249.725558][ T6721]  ? kernfs_path_from_node+0x2f/0x290
[  249.725570][ T6721]  sysfs_create_dir_ns+0x259/0x280
[  249.725593][ T6721]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.725614][ T6721]  ? do_raw_spin_unlock+0x122/0x240
[  249.725633][ T6721]  kobject_add_internal+0x59f/0xb40
[  249.725656][ T6721]  kobject_init_and_add+0x125/0x190
[  249.725677][ T6721]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.725698][ T6721]  ? __raw_spin_lock_init+0x45/0x100
[  249.725714][ T6721]  ? __init_swait_queue_head+0xa9/0x150
[  249.725732][ T6721]  gfs2_sys_fs_add+0x234/0x450
[  249.725756][ T6721]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.725780][ T6721]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.725804][ T6721]  gfs2_fill_super+0x13c0/0x20d0
[  249.725827][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.725846][ T6721]  ? sb_set_blocksize+0x104/0x180
[  249.725866][ T6721]  ? setup_bdev_super+0x4c1/0x5b0
[  249.725885][ T6721]  get_tree_bdev_flags+0x40e/0x4d0
[  249.725903][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.725921][ T6721]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.725943][ T6721]  gfs2_get_tree+0x51/0x1e0
[  249.725961][ T6721]  vfs_get_tree+0x92/0x2b0
[  249.725980][ T6721]  do_new_mount+0x2a2/0xa30
[  249.726001][ T6721]  ? ns_capable+0x8a/0xf0
[  249.726022][ T6721]  ? __pfx_do_new_mount+0x10/0x10
[  249.726040][ T6721]  ? path_mount+0x61c/0xfe0
[  249.726058][ T6721]  ? user_path_at+0x44/0x60
[  249.726076][ T6721]  __se_sys_mount+0x317/0x410
[  249.726098][ T6721]  ? __pfx___se_sys_mount+0x10/0x10
[  249.726119][ T6721]  ? rcu_is_watching+0x15/0xb0
[  249.726139][ T6721]  ? __x64_sys_mount+0x20/0xc0
[  249.726159][ T6721]  do_syscall_64+0xfa/0xfa0
[  249.726178][ T6721]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.726194][ T6721]  ? clear_bhb_loop+0x60/0xb0
[  249.726211][ T6721]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.726227][ T6721] RIP: 0033:0x7fa4f559038a
[  249.726243][ T6721] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  249.726257][ T6721] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.726275][ T6721] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  249.726288][ T6721] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  249.726300][ T6721] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  249.726313][ T6721] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  249.726323][ T6721] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  249.726342][ T6721]  </TASK>
[  249.726360][ T6721] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.040522][ T6721] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.073995][   T31] INFO: task kworker/1:3:6024 blocked for more than 143 seconds.
[  250.092395][   T31]       Not tainted syzkaller #0
[  250.097537][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  250.109152][   T31] task:kworker/1:3     state:D stack:25128 pid:6024  tgid:6024  ppid:2      task_flags:0x4208060 flags:0x00004000
[  250.121621][   T31] Workqueue: gfs2_recovery gfs2_recover_func
[  250.128379][   T31] Call Trace:
[  250.131669][   T31]  <TASK>
[  250.135108][   T31]  __schedule+0x1798/0x4cc0
[  250.139626][   T31]  ? blk_mq_dispatch_queue_requests+0x552/0x800
[  250.146348][   T31]  ? lock_release+0x4b/0x3e0
[  250.151060][   T31]  ? __pfx___schedule+0x10/0x10
[  250.156437][   T31]  ? do_raw_spin_lock+0x121/0x290
[  250.161478][   T31]  ? schedule+0x91/0x360
[  250.166731][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.171519][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.187582][   T31]  ? lock_release+0x4b/0x3e0
[  250.192697][   T31]  ? schedule+0x91/0x360
[  250.196962][   T31]  ? wq_worker_sleeping+0x63/0x250
[  250.202755][   T31]  schedule+0x165/0x360
[  250.206941][   T31]  io_schedule+0x80/0xd0
[  250.211554][   T31]  folio_wait_bit_common+0x6b0/0xb90
[  250.217202][   T31]  ? lock_release+0x4b/0x3e0
[  250.221969][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  250.227878][   T31]  ? seqcount_lockdep_reader_access+0x175/0x1c0
[  250.234533][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  250.240102][   T31]  ? __get_log_header+0x297/0x620
[  250.245408][   T31]  ? __filemap_get_folio+0x79f/0xaf0
[  250.250722][   T31]  gfs2_jhead_process_page+0x16e/0x650
[  250.256530][   T31]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  250.262860][   T31]  gfs2_find_jhead+0xc9e/0xe10
[  250.267834][   T31]  gfs2_recover_func+0x646/0x1d90
[  250.273300][   T31]  ? do_raw_spin_lock+0x121/0x290
[  250.278340][   T31]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  250.284006][   T31]  ? __pfx_gfs2_recover_func+0x10/0x10
[  250.289491][   T31]  ? __switch_to+0xdc8/0x1690
[  250.294551][   T31]  ? do_raw_spin_lock+0x121/0x290
[  250.299598][   T31]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  250.305344][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.310285][   T31]  ? process_scheduled_works+0x9ef/0x17b0
[  250.316728][   T31]  ? process_scheduled_works+0x9ef/0x17b0
[  250.322750][   T31]  process_scheduled_works+0xae1/0x17b0
[  250.328325][   T31]  ? __pfx_process_scheduled_works+0x10/0x10
[  250.334744][   T31]  worker_thread+0x8a0/0xda0
[  250.339357][   T31]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[  250.345986][   T31]  ? _raw_spin_unlock_irqrestore+0xad/0x110
[  250.352179][   T31]  ? __kthread_parkme+0x7b/0x200
[  250.357133][   T31]  kthread+0x711/0x8a0
[  250.361205][   T31]  ? __pfx_worker_thread+0x10/0x10
[  250.366938][   T31]  ? __pfx_kthread+0x10/0x10
[  250.371551][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.376829][   T31]  ? __pfx_kthread+0x10/0x10
[  250.381433][   T31]  ret_from_fork+0x47c/0x820
[  250.386413][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  250.391540][   T31]  ? __switch_to_asm+0x39/0x70
[  250.398946][   T31]  ? __switch_to_asm+0x33/0x70
[  250.403916][   T31]  ? __pfx_kthread+0x10/0x10
[  250.408528][   T31]  ret_from_fork_asm+0x1a/0x30
[  250.413648][   T31]  </TASK>
[  250.417078][   T31] INFO: task syz.0.18:6027 blocked for more than 143 seconds.
[  250.426257][   T31]       Not tainted syzkaller #0
[  250.431206][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  250.440556][   T31] task:syz.0.18        state:D stack:25224 pid:6027  tgid:6027  ppid:5969   task_flags:0x400140 flags:0x00004004
[  250.452831][   T31] Call Trace:
[  250.456150][   T31]  <TASK>
[  250.459093][   T31]  __schedule+0x1798/0x4cc0
[  250.463992][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.468779][   T31]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  250.474629][   T31]  ? __pfx___schedule+0x10/0x10
[  250.479493][   T31]  ? schedule+0x91/0x360
[  250.484087][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.488868][   T31]  ? rcu_is_watching+0x15/0xb0
[  250.494050][   T31]  ? lock_release+0x4b/0x3e0
[  250.498660][   T31]  schedule+0x165/0x360
[  250.503123][   T31]  bit_wait+0x11/0xd0
[  250.507119][   T31]  __wait_on_bit+0xb6/0x310
[  250.511670][   T31]  ? __pfx_bit_wait+0x10/0x10
[  250.516798][   T31]  ? __pfx_bit_wait+0x10/0x10
[  250.521282][ T6724] loop1: detected capacity change from 0 to 32768
[  250.522227][   T31]  out_of_line_wait_on_bit+0x123/0x170
[  250.537180][   T31]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  250.546316][ T6724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.555152][ T6724] CPU: 1 UID: 0 PID: 6724 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT(full) 
[  250.555177][ T6724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  250.555187][ T6724] Call Trace:
[  250.555195][ T6724]  <TASK>
[  250.555202][ T6724]  dump_stack_lvl+0x189/0x250
[  250.555227][ T6724]  ? __pfx_dump_stack_lvl+0x10/0x10
[  250.555246][ T6724]  ? __pfx__printk+0x10/0x10
[  250.555265][ T6724]  ? kernfs_root+0x1c/0x230
[  250.555282][ T6724]  ? kernfs_path_from_node+0x250/0x290
[  250.555296][ T6724]  ? kernfs_path_from_node+0x2f/0x290
[  250.555313][ T6724]  sysfs_create_dir_ns+0x259/0x280
[  250.555336][ T6724]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  250.555358][ T6724]  ? do_raw_spin_unlock+0x122/0x240
[  250.555378][ T6724]  kobject_add_internal+0x59f/0xb40
[  250.555402][ T6724]  kobject_init_and_add+0x125/0x190
[  250.555431][ T6724]  ? __pfx_kobject_init_and_add+0x10/0x10
[  250.555450][ T6724]  ? __raw_spin_lock_init+0x45/0x100
[  250.555468][ T6724]  ? __init_swait_queue_head+0xa9/0x150
[  250.555485][ T6724]  gfs2_sys_fs_add+0x234/0x450
[  250.555508][ T6724]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  250.555532][ T6724]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  250.555555][ T6724]  gfs2_fill_super+0x13c0/0x20d0
[  250.555579][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.555599][ T6724]  ? sb_set_blocksize+0x104/0x180
[  250.555619][ T6724]  ? setup_bdev_super+0x4c1/0x5b0
[  250.555640][ T6724]  get_tree_bdev_flags+0x40e/0x4d0
[  250.555658][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.555675][ T6724]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.555698][ T6724]  gfs2_get_tree+0x51/0x1e0
[  250.555717][ T6724]  vfs_get_tree+0x92/0x2b0
[  250.555736][ T6724]  do_new_mount+0x2a2/0xa30
[  250.555757][ T6724]  ? ns_capable+0x8a/0xf0
[  250.555777][ T6724]  ? __pfx_do_new_mount+0x10/0x10
[  250.555796][ T6724]  ? path_mount+0x61c/0xfe0
[  250.555813][ T6724]  ? user_path_at+0x44/0x60
[  250.555833][ T6724]  __se_sys_mount+0x317/0x410
[  250.555854][ T6724]  ? __pfx___se_sys_mount+0x10/0x10
[  250.555876][ T6724]  ? rcu_is_watching+0x15/0xb0
[  250.555897][ T6724]  ? __x64_sys_mount+0x20/0xc0
[  250.555917][ T6724]  do_syscall_64+0xfa/0xfa0
[  250.555936][ T6724]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.555953][ T6724]  ? clear_bhb_loop+0x60/0xb0
[  250.555971][ T6724]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.555987][ T6724] RIP: 0033:0x7fa4f559038a
[  250.556002][ T6724] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
[  250.556018][ T6724] RSP: 002b:00007ffe3858b2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.556037][ T6724] RAX: ffffffffffffffda RBX: 00007ffe3858b370 RCX: 00007fa4f559038a
[  250.556050][ T6724] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe3858b330
[  250.556063][ T6724] RBP: 000020000001f680 R08: 00007ffe3858b370 R09: 0000000000000084
[  250.556075][ T6724] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  250.556086][ T6724] R13: 00007ffe3858b330 R14: 000000000001f81f R15: 00002000000001c0
[  250.556105][ T6724]  </TASK>
[  250.556123][ T6724] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.573575][   T31]  ? __pfx_wake_bit_function+0x10/0x10
[  250.575712][ T6724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.581775][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  250.581804][   T31]  gfs2_recover_journal+0xda/0x140
[  250.581824][   T31]  init_journal+0x17cc/0x2260
[  250.581846][   T31]  ? init_inodes+0xdb/0x320
[  250.903071][   T31]  ? __pfx_init_journal+0x10/0x10
[  250.908133][   T31]  ? snprintf+0xda/0x120
[  250.912446][   T31]  ? init_inodes+0xdb/0x320
[  250.916956][   T31]  ? __pfx_snprintf+0x10/0x10
[  250.921647][   T31]  ? gfs2_glock_nq_num+0x13d/0x170
[  250.927104][   T31]  init_inodes+0xdb/0x320
[  250.931456][   T31]  gfs2_fill_super+0x1923/0x20d0
[  250.936488][   T31]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.941803][   T31]  ? init_locking+0xb8/0x210
[  250.946403][   T31]  ? sb_set_blocksize+0x104/0x180
[  250.951435][   T31]  ? setup_bdev_super+0x4c1/0x5b0
[  250.956524][   T31]  get_tree_bdev_flags+0x40e/0x4d0
[  250.961649][   T31]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.967075][   T31]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.972754][   T31]  gfs2_get_tree+0x51/0x1e0
[  250.977372][   T31]  vfs_get_tree+0x92/0x2b0
[  250.981858][   T31]  do_new_mount+0x2a2/0xa30
[  250.986369][   T31]  ? ns_capable+0x8a/0xf0
[  250.990795][   T31]  ? __pfx_do_new_mount+0x10/0x10
[  250.996006][   T31]  ? path_mount+0x61c/0xfe0
[  251.000517][   T31]  ? user_path_at+0x44/0x60
[  251.005131][   T31]  __se_sys_mount+0x317/0x410
[  251.009826][   T31]  ? __pfx___se_sys_mount+0x10/0x10
[  251.015129][   T31]  ? rcu_is_watching+0x15/0xb0
[  251.019962][   T31]  ? __x64_sys_mount+0x20/0xc0
[  251.024800][   T31]  do_syscall_64+0xfa/0xfa0
[  251.029680][   T31]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.035914][   T31]  ? clear_bhb_loop+0x60/0xb0
[  251.040697][   T31]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.046713][   T31] RIP: 0033:0x7fb7b6f9038a
[  251.051135][   T31] RSP: 002b:00007ffe121b7e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.059691][   T31] RAX: ffffffffffffffda RBX: 00007ffe121b7ee0 RCX: 00007fb7b6f9038a
[  251.067731][   T31] RDX: 000020000001f680 RSI: 0000200000000080 RDI: 00007ffe121b7ea0
[  251.075828][   T31] RBP: 000020000001f680 R08: 00007ffe121b7ee0 R09: 0000000000000084
[  251.083957][   T31] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000080
[  251.092023][   T31] R13: 00007ffe121b7ea0 R14: 000000000001f81f R15: 00002000000001c0
[  251.100024][   T31]  </TASK>
[  251.103310][   T31] INFO: lockdep is turned off.
[  251.108124][   T31] NMI backtrace for cpu 0
[  251.108143][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  251.108162][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  251.108175][   T31] Call Trace:
[  251.108182][   T31]  <TASK>
[  251.108190][   T31]  dump_stack_lvl+0x189/0x250
[  251.108216][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.108236][   T31]  ? __pfx__printk+0x10/0x10
[  251.108370][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  251.108395][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  251.108418][   T31]  ? __pfx__printk+0x10/0x10
[  251.108441][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  251.108463][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  251.108485][   T31]  watchdog+0xf60/0xfa0
[  251.108505][   T31]  ? watchdog+0x1e2/0xfa0
[  251.108521][   T31]  kthread+0x711/0x8a0
[  251.108539][   T31]  ? __pfx_watchdog+0x10/0x10
[  251.108557][   T31]  ? __pfx_kthread+0x10/0x10
[  251.108574][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  251.108591][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  251.108609][   T31]  ? __pfx_kthread+0x10/0x10
[  251.108626][   T31]  ret_from_fork+0x47c/0x820
[  251.108646][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  251.108670][   T31]  ? __switch_to_asm+0x39/0x70
[  251.108689][   T31]  ? __switch_to_asm+0x33/0x70
[  251.108708][   T31]  ? __pfx_kthread+0x10/0x10
[  251.108724][   T31]  ret_from_fork_asm+0x1a/0x30
[  251.108750][   T31]  </TASK>
[  251.108758][   T31] Sending NMI from CPU 0 to CPUs 1:
[  251.167378][ T6727] loop1: detected capacity change from 0 to 32768
[  251.169881][    C1] NMI backtrace for cpu 1
[  251.169894][    C1] CPU: 1 UID: 0 PID: 6727 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  251.169912][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  251.169923][    C1] RIP: 0010:io_serial_in+0x77/0xc0
[  251.169944][    C1] Code: e8 1e 6e 6d fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 cf 17 d1 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[  251.169958][    C1] RSP: 0018:ffffc90004bc6978 EFLAGS: 00000006
[  251.169972][    C1] RAX: 1ffffffff3401505 RBX: 00000000000003f9 RCX: 0000000000000000
[  251.169984][    C1] RDX: 00000000000003f9 RSI: 0000000000000000 RDI: 0000000000000020
[  251.169994][    C1] RBP: ffffc90004bc6b50 R08: 0000000000000003 R09: 0000000000000004
[  251.170005][    C1] R10: dffffc0000000000 R11: ffffffff85532060 R12: dffffc0000000000
[  251.170017][    C1] R13: dffffc0000000000 R14: ffffffff9a00af20 R15: 0000000000000000
[  251.170029][    C1] FS:  00005555741e1500(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
[  251.170043][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  251.170054][    C1] CR2: 00007fa4ed5ff000 CR3: 0000000077be4000 CR4: 00000000003526f0
[  251.170069][    C1] Call Trace:
[  251.170076][    C1]  <TASK>
[  251.170084][    C1]  serial8250_console_write+0x581/0x1ba0
[  251.170102][    C1]  ? format_decode+0xd9/0xe30
[  251.170124][    C1]  ? __pfx_serial8250_console_write+0x10/0x10
[  251.170140][    C1]  ? console_flush_all+0x13a/0xc40
[  251.170156][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.170175][    C1]  ? lock_acquire+0x5f/0x360
[  251.170194][    C1]  ? do_raw_spin_unlock+0x122/0x240
[  251.170209][    C1]  ? console_flush_all+0x13a/0xc40
[  251.170223][    C1]  ? console_flush_all+0x13a/0xc40
[  251.170239][    C1]  console_flush_all+0x725/0xc40
[  251.170253][    C1]  ? console_flush_all+0x13a/0xc40
[  251.170266][    C1]  ? __pfx_console_flush_all+0x10/0x10
[  251.170280][    C1]  ? is_printk_cpu_sync_owner+0x32/0x40
[  251.170294][    C1]  console_unlock+0xc4/0x270
[  251.170310][    C1]  ? __pfx_console_unlock+0x10/0x10
[  251.170326][    C1]  ? vprintk_emit+0x444/0x7a0
[  251.170347][    C1]  ? vprintk_emit+0x444/0x7a0
[  251.170364][    C1]  ? vprintk_emit+0x444/0x7a0
[  251.170384][    C1]  vprintk_emit+0x5b7/0x7a0
[  251.170401][    C1]  ? vprintk_emit+0x444/0x7a0
[  251.170421][    C1]  ? __pfx_vprintk_emit+0x10/0x10
[  251.170441][    C1]  ? shmem_huge_global_enabled+0x174/0x3a0
[  251.170462][    C1]  _printk+0xcf/0x120
[  251.170482][    C1]  ? __pfx__printk+0x10/0x10
[  251.170523][    C1]  ? do_raw_spin_unlock+0x122/0x240
[  251.170539][    C1]  set_capacity_and_notify+0x208/0x2d0
[  251.170561][    C1]  ? __pfx_set_capacity_and_notify+0x10/0x10
[  251.170580][    C1]  ? __pfx_internal_create_group+0x10/0x10
[  251.170603][    C1]  loop_set_size+0x44/0xb0
[  251.170622][    C1]  loop_configure+0x9f4/0xe50
[  251.170639][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.170653][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.170675][    C1]  ? __pfx_loop_configure+0x10/0x10
[  251.170698][    C1]  ? __kernel_text_address+0xd/0x40
[  251.170715][    C1]  ? unwind_get_return_address+0x4d/0x90
[  251.170729][    C1]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  251.170747][    C1]  lo_ioctl+0x810/0x1b30
[  251.170765][    C1]  ? stack_trace_save+0x9c/0xe0
[  251.170779][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  251.170794][    C1]  ? __pfx_lo_ioctl+0x10/0x10
[  251.170811][    C1]  ? stack_depot_save_flags+0x40/0x860
[  251.170829][    C1]  ? vsnprintf+0xe3a/0xf00
[  251.170848][    C1]  ? kasan_save_track+0x4f/0x80
[  251.170863][    C1]  ? kasan_save_track+0x3e/0x80
[  251.170877][    C1]  ? __kasan_save_free_info+0x46/0x50
[  251.170896][    C1]  ? __kasan_slab_free+0x5b/0x80
[  251.170910][    C1]  ? kfree+0x18e/0x440
[  251.170925][    C1]  ? tomoyo_check_open_permission+0x2c2/0x3b0
[  251.170943][    C1]  ? security_file_open+0xb1/0x270
[  251.170958][    C1]  ? do_dentry_open+0x384/0x13f0
[  251.170977][    C1]  ? vfs_open+0x3b/0x340
[  251.170994][    C1]  ? path_openat+0x2ee5/0x3830
[  251.171007][    C1]  ? do_filp_open+0x1fa/0x410
[  251.171021][    C1]  ? do_sys_openat2+0x121/0x1c0
[  251.171040][    C1]  ? __x64_sys_openat+0x138/0x170
[  251.171053][    C1]  ? do_syscall_64+0xfa/0xfa0
[  251.171069][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.171089][    C1]  ? __mutex_trylock_common+0x153/0x260
[  251.171110][    C1]  ? __pfx___mutex_trylock_common+0x10/0x10
[  251.171132][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171145][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171164][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171179][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171192][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171210][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171225][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171238][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171257][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171270][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171289][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171303][    C1]  ? unwind_next_frame+0xa5/0x2390
[  251.171316][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171334][    C1]  ? is_bpf_text_address+0x26/0x2b0
[  251.171352][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171370][    C1]  ? rcu_is_watching+0x15/0xb0
[  251.171389][    C1]  ? lock_release+0x4b/0x3e0
[  251.171405][    C1]  ? lock_release+0x4b/0x3e0
[  251.171424][    C1]  ? is_bpf_text_address+0x292/0x2b0
[  251.171441][    C1]  ? is_bpf_text_address+0x26/0x2b0
[  251.171459][    C1]  ? kernel_text_address+0xa5/0xe0
[  251.171475][    C1]  ? __kernel_text_address+0xd/0x40
[  251.171496][    C1]  ? unwind_get_return_address+0x4d/0x90
[  251.171510][    C1]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  251.171526][    C1]  ? arch_stack_walk+0xfc/0x150
[  251.171545][    C1]  ? stack_trace_save+0x9c/0xe0
[  251.171560][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  251.171575][    C1]  ? stack_depot_save_flags+0x40/0x860
[  251.171596][    C1]  ? kasan_save_track+0x4f/0x80
[  251.171610][    C1]  ? kasan_save_track+0x3e/0x80
[  251.171625][    C1]  ? __kasan_save_free_info+0x46/0x50
[  251.171643][    C1]  ? __kasan_slab_free+0x5b/0x80
[  251.171658][    C1]  ? kfree+0x18e/0x440
[  251.171672][    C1]  ? tomoyo_path_number_perm+0x47a/0x5a0
[  251.171688][    C1]  ? security_file_ioctl+0xcb/0x2d0
[  251.171704][    C1]  ? __se_sys_ioctl+0x47/0x170
[  251.171719][    C1]  ? do_syscall_64+0xfa/0xfa0
[  251.171735][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.171753][    C1]  ? __asan_memset+0x22/0x50
[  251.171765][    C1]  ? blk_get_meta_cap+0x140/0x710
[  251.171789][    C1]  ? __pfx_blkdev_common_ioctl+0x10/0x10
[  251.171807][    C1]  ? do_vfs_ioctl+0xbe8/0x1430
[  251.171821][    C1]  ? tomoyo_path_number_perm+0x1bc/0x5a0
[  251.171839][    C1]  ? __pfx_do_vfs_ioctl+0x10/0x10
[  251.171867][    C1]  ? __pfx_lo_ioctl+0x10/0x10
[  251.171885][    C1]  blkdev_ioctl+0x5a8/0x6d0
[  251.171905][    C1]  ? __pfx_blkdev_ioctl+0x10/0x10
[  251.171926][    C1]  ? bpf_lsm_file_ioctl+0x9/0x20
[  251.171942][    C1]  ? __pfx_blkdev_ioctl+0x10/0x10
[  251.171960][    C1]  __se_sys_ioctl+0xfc/0x170
[  251.171976][    C1]  do_syscall_64+0xfa/0xfa0
[  251.171992][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.172007][    C1]  ? clear_bhb_loop+0x60/0xb0
[  251.172023][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.172037][    C1] RIP: 0033:0x7fa4f558e7eb
[  251.172051][    C1] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
[  251.172064][    C1] RSP: 002b:00007ffe3858b240 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  251.172080][    C1] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa4f558e7eb
[  251.172091][    C1] RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004
[  251.172101][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000001f819
[  251.172112][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  251.172122][    C1] R13: 00007ffe3858b370 R14: 00007ffe3858b330 R15: 00007fa4ec600000
[  251.172140][    C1]  </TASK>
[  251.174618][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  251.174635][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  251.174655][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  251.174666][   T31] Call Trace:
[  251.174674][   T31]  <TASK>
[  251.174681][   T31]  dump_stack_lvl+0x99/0x250
[  251.174703][   T31]  ? __asan_memcpy+0x40/0x70
[  251.174720][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.174738][   T31]  ? __pfx__printk+0x10/0x10
[  251.174764][   T31]  vpanic+0x281/0x750
[  251.174783][   T31]  ? __pfx_vpanic+0x10/0x10
[  251.174801][   T31]  ? preempt_schedule+0xae/0xc0
[  251.174820][   T31]  ? preempt_schedule_common+0x83/0xd0
[  251.174840][   T31]  panic+0xb9/0xc0
[  251.174858][   T31]  ? __pfx_panic+0x10/0x10
[  251.174876][   T31]  ? preempt_schedule_thunk+0x16/0x30
[  251.174894][   T31]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  251.174918][   T31]  watchdog+0xf9f/0xfa0
[  251.174939][   T31]  ? watchdog+0x1e2/0xfa0
[  251.174959][   T31]  kthread+0x711/0x8a0
[  251.174977][   T31]  ? __pfx_watchdog+0x10/0x10
[  251.174995][   T31]  ? __pfx_kthread+0x10/0x10
[  251.175012][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  251.175030][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  251.175047][   T31]  ? __pfx_kthread+0x10/0x10
[  251.175064][   T31]  ret_from_fork+0x47c/0x820
[  251.175087][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  251.175111][   T31]  ? __switch_to_asm+0x39/0x70
[  251.175130][   T31]  ? __switch_to_asm+0x33/0x70
[  251.175149][   T31]  ? __pfx_kthread+0x10/0x10
[  251.175166][   T31]  ret_from_fork_asm+0x1a/0x30
[  251.175192][   T31]  </TASK>
[  251.178414][   T31] Kernel Offset: disabled