D: 0 PID: 7287 Comm: syz.1.192 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  279.732914][ T7287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  279.732925][ T7287] Call Trace:
[  279.732933][ T7287]  <TASK>
[  279.732941][ T7287]  dump_stack_lvl+0xe8/0x150
[  279.732970][ T7287]  sysfs_create_dir_ns+0x271/0x2a0
[  279.732998][ T7287]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  279.733022][ T7287]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  279.733044][ T7287]  ? rt_spin_unlock+0x160/0x200
[  279.733068][ T7287]  kobject_add_internal+0x631/0xd10
[  279.733094][ T7287]  kobject_init_and_add+0x12b/0x1a0
[  279.733118][ T7287]  ? __pfx_kobject_init_and_add+0x10/0x10
[  279.733138][ T7287]  ? __raw_spin_lock_init+0x45/0x100
[  279.733162][ T7287]  ? __init_swait_queue_head+0xa9/0x150
[  279.733188][ T7287]  gfs2_sys_fs_add+0x257/0x480
[  279.733208][ T7287]  ? is_dynamic_key+0x1ac/0x1c0
[  279.733233][ T7287]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  279.733262][ T7287]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  279.733300][ T7287]  gfs2_fill_super+0x141c/0x2220
[  279.733341][ T7287]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.733362][ T7287]  ? rt_spin_unlock+0x14f/0x200
[  279.733386][ T7287]  ? sb_set_blocksize+0x11b/0x210
[  279.733414][ T7287]  ? setup_bdev_super+0x4c1/0x5b0
[  279.733439][ T7287]  get_tree_bdev_flags+0x431/0x4f0
[  279.733462][ T7287]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.733484][ T7287]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  279.733504][ T7287]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  279.733537][ T7287]  gfs2_get_tree+0x51/0x1e0
[  279.733563][ T7287]  vfs_get_tree+0x92/0x2a0
[  279.733588][ T7287]  do_new_mount+0x341/0xd30
[  279.733604][ T7287]  ? apparmor_capable+0x126/0x170
[  279.733634][ T7287]  ? __pfx_do_new_mount+0x10/0x10
[  279.733652][ T7287]  ? ns_capable+0x89/0xe0
[  279.733677][ T7287]  ? user_path_at+0xd4/0x160
[  279.733702][ T7287]  ? user_path_at+0xd4/0x160
[  279.733723][ T7287]  __se_sys_mount+0x31d/0x420
[  279.733748][ T7287]  ? __pfx___se_sys_mount+0x10/0x10
[  279.733773][ T7287]  ? __x64_sys_mount+0x20/0xc0
[  279.733791][ T7287]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.733811][ T7287]  do_syscall_64+0x15f/0xf80
[  279.733837][ T7287]  ? trace_irq_disable+0x3b/0x140
[  279.733861][ T7287]  ? clear_bhb_loop+0x40/0x90
[  279.733883][ T7287]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.733901][ T7287] RIP: 0033:0x7fb8cc86b60a
[  279.733919][ T7287] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  279.733934][ T7287] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.733955][ T7287] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  279.733969][ T7287] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  279.733989][ T7287] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  279.734002][ T7287] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  279.734014][ T7287] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  279.734044][ T7287]  </TASK>
[  279.740126][ T7287] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.740147][ T7287] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.273216][ T7291] loop1: detected capacity change from 0 to 32768
[  280.291992][ T7291] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.292015][ T7291] CPU: 0 UID: 0 PID: 7291 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  280.292035][ T7291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  280.292046][ T7291] Call Trace:
[  280.292053][ T7291]  <TASK>
[  280.292061][ T7291]  dump_stack_lvl+0xe8/0x150
[  280.292094][ T7291]  sysfs_create_dir_ns+0x271/0x2a0
[  280.292115][ T7291]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  280.292179][ T7291]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  280.292201][ T7291]  ? rt_spin_unlock+0x160/0x200
[  280.292225][ T7291]  kobject_add_internal+0x631/0xd10
[  280.292251][ T7291]  kobject_init_and_add+0x12b/0x1a0
[  280.292275][ T7291]  ? __pfx_kobject_init_and_add+0x10/0x10
[  280.292295][ T7291]  ? __raw_spin_lock_init+0x45/0x100
[  280.292320][ T7291]  ? __init_swait_queue_head+0xa9/0x150
[  280.292347][ T7291]  gfs2_sys_fs_add+0x257/0x480
[  280.292368][ T7291]  ? is_dynamic_key+0x1ac/0x1c0
[  280.292393][ T7291]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  280.292422][ T7291]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  280.292461][ T7291]  gfs2_fill_super+0x141c/0x2220
[  280.292501][ T7291]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.292523][ T7291]  ? rt_spin_unlock+0x14f/0x200
[  280.292548][ T7291]  ? sb_set_blocksize+0x11b/0x210
[  280.292576][ T7291]  ? setup_bdev_super+0x4c1/0x5b0
[  280.292602][ T7291]  get_tree_bdev_flags+0x431/0x4f0
[  280.292625][ T7291]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.292649][ T7291]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  280.292669][ T7291]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  280.292701][ T7291]  gfs2_get_tree+0x51/0x1e0
[  280.292728][ T7291]  vfs_get_tree+0x92/0x2a0
[  280.292753][ T7291]  do_new_mount+0x341/0xd30
[  280.292770][ T7291]  ? apparmor_capable+0x126/0x170
[  280.292801][ T7291]  ? __pfx_do_new_mount+0x10/0x10
[  280.292819][ T7291]  ? ns_capable+0x89/0xe0
[  280.292843][ T7291]  ? user_path_at+0xd4/0x160
[  280.292868][ T7291]  ? user_path_at+0xd4/0x160
[  280.292889][ T7291]  __se_sys_mount+0x31d/0x420
[  280.292907][ T7291]  ? __pfx___se_sys_mount+0x10/0x10
[  280.292926][ T7291]  ? __x64_sys_mount+0x20/0xc0
[  280.292942][ T7291]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.292963][ T7291]  do_syscall_64+0x15f/0xf80
[  280.292987][ T7291]  ? trace_irq_disable+0x3b/0x140
[  280.293010][ T7291]  ? clear_bhb_loop+0x40/0x90
[  280.293031][ T7291]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.293050][ T7291] RIP: 0033:0x7fb8cc86b60a
[  280.293068][ T7291] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  280.293083][ T7291] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.293103][ T7291] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  280.293117][ T7291] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  280.293136][ T7291] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  280.293149][ T7291] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  280.293162][ T7291] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  280.293193][ T7291]  </TASK>
[  280.293858][ T7291] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.293876][ T7291] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.887459][ T7295] loop1: detected capacity change from 0 to 32768
[  280.913113][ T7295] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.913129][ T7295] CPU: 1 UID: 0 PID: 7295 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  280.913142][ T7295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  280.913148][ T7295] Call Trace:
[  280.913153][ T7295]  <TASK>
[  280.913158][ T7295]  dump_stack_lvl+0xe8/0x150
[  280.913177][ T7295]  sysfs_create_dir_ns+0x271/0x2a0
[  280.913189][ T7295]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  280.913203][ T7295]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  280.913215][ T7295]  ? rt_spin_unlock+0x160/0x200
[  280.913228][ T7295]  kobject_add_internal+0x631/0xd10
[  280.913243][ T7295]  kobject_init_and_add+0x12b/0x1a0
[  280.913255][ T7295]  ? __pfx_kobject_init_and_add+0x10/0x10
[  280.913266][ T7295]  ? __raw_spin_lock_init+0x45/0x100
[  280.913281][ T7295]  ? __init_swait_queue_head+0xa9/0x150
[  280.913296][ T7295]  gfs2_sys_fs_add+0x257/0x480
[  280.913308][ T7295]  ? is_dynamic_key+0x1ac/0x1c0
[  280.913323][ T7295]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  280.913345][ T7295]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  280.913377][ T7295]  gfs2_fill_super+0x141c/0x2220
[  280.913400][ T7295]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.913412][ T7295]  ? rt_spin_unlock+0x14f/0x200
[  280.913434][ T7295]  ? sb_set_blocksize+0x11b/0x210
[  280.913460][ T7295]  ? setup_bdev_super+0x4c1/0x5b0
[  280.913485][ T7295]  get_tree_bdev_flags+0x431/0x4f0
[  280.913505][ T7295]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.913527][ T7295]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  280.913545][ T7295]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  280.913572][ T7295]  gfs2_get_tree+0x51/0x1e0
[  280.913598][ T7295]  vfs_get_tree+0x92/0x2a0
[  280.913621][ T7295]  do_new_mount+0x341/0xd30
[  280.913638][ T7295]  ? apparmor_capable+0x126/0x170
[  280.913665][ T7295]  ? __pfx_do_new_mount+0x10/0x10
[  280.913683][ T7295]  ? ns_capable+0x89/0xe0
[  280.913707][ T7295]  ? user_path_at+0xd4/0x160
[  280.913732][ T7295]  ? user_path_at+0xd4/0x160
[  280.913754][ T7295]  __se_sys_mount+0x31d/0x420
[  280.913778][ T7295]  ? __pfx___se_sys_mount+0x10/0x10
[  280.913804][ T7295]  ? __x64_sys_mount+0x20/0xc0
[  280.913821][ T7295]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.913851][ T7295]  do_syscall_64+0x15f/0xf80
[  280.913875][ T7295]  ? trace_irq_disable+0x3b/0x140
[  280.913898][ T7295]  ? clear_bhb_loop+0x40/0x90
[  280.913919][ T7295]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.913941][ T7295] RIP: 0033:0x7fb8cc86b60a
[  280.913959][ T7295] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  280.913974][ T7295] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.913994][ T7295] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  280.914007][ T7295] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  280.914019][ T7295] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  280.914030][ T7295] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  280.914042][ T7295] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  280.914068][ T7295]  </TASK>
[  280.914106][ T7295] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.914120][ T7295] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.524912][ T7299] loop1: detected capacity change from 0 to 32768
[  281.530784][ T7299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.530806][ T7299] CPU: 1 UID: 0 PID: 7299 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  281.530826][ T7299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  281.530836][ T7299] Call Trace:
[  281.530844][ T7299]  <TASK>
[  281.530851][ T7299]  dump_stack_lvl+0xe8/0x150
[  281.530880][ T7299]  sysfs_create_dir_ns+0x271/0x2a0
[  281.530901][ T7299]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  281.530922][ T7299]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  281.530944][ T7299]  ? rt_spin_unlock+0x160/0x200
[  281.530967][ T7299]  kobject_add_internal+0x631/0xd10
[  281.530999][ T7299]  kobject_init_and_add+0x12b/0x1a0
[  281.531023][ T7299]  ? __pfx_kobject_init_and_add+0x10/0x10
[  281.531044][ T7299]  ? __raw_spin_lock_init+0x45/0x100
[  281.531068][ T7299]  ? __init_swait_queue_head+0xa9/0x150
[  281.531095][ T7299]  gfs2_sys_fs_add+0x257/0x480
[  281.531116][ T7299]  ? is_dynamic_key+0x1ac/0x1c0
[  281.531141][ T7299]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  281.531170][ T7299]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  281.531208][ T7299]  gfs2_fill_super+0x141c/0x2220
[  281.531249][ T7299]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.531271][ T7299]  ? rt_spin_unlock+0x14f/0x200
[  281.531294][ T7299]  ? sb_set_blocksize+0x11b/0x210
[  281.531321][ T7299]  ? setup_bdev_super+0x4c1/0x5b0
[  281.531348][ T7299]  get_tree_bdev_flags+0x431/0x4f0
[  281.531371][ T7299]  ? __pfx_gfs2_fill_super+0x10/0x10
[  281.531393][ T7299]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  281.531410][ T7299]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  281.531438][ T7299]  gfs2_get_tree+0x51/0x1e0
[  281.531463][ T7299]  vfs_get_tree+0x92/0x2a0
[  281.531486][ T7299]  do_new_mount+0x341/0xd30
[  281.531500][ T7299]  ? apparmor_capable+0x126/0x170
[  281.531532][ T7299]  ? __pfx_do_new_mount+0x10/0x10
[  281.531549][ T7299]  ? ns_capable+0x89/0xe0
[  281.531571][ T7299]  ? user_path_at+0xd4/0x160
[  281.531594][ T7299]  ? user_path_at+0xd4/0x160
[  281.531614][ T7299]  __se_sys_mount+0x31d/0x420
[  281.531635][ T7299]  ? __pfx___se_sys_mount+0x10/0x10
[  281.531658][ T7299]  ? __x64_sys_mount+0x20/0xc0
[  281.531673][ T7299]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.531693][ T7299]  do_syscall_64+0x15f/0xf80
[  281.531714][ T7299]  ? trace_irq_disable+0x3b/0x140
[  281.531737][ T7299]  ? clear_bhb_loop+0x40/0x90
[  281.531759][ T7299]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.531778][ T7299] RIP: 0033:0x7fb8cc86b60a
[  281.531795][ T7299] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  281.531811][ T7299] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.531830][ T7299] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  281.531842][ T7299] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  281.531855][ T7299] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  281.531866][ T7299] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  281.531875][ T7299] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  281.531900][ T7299]  </TASK>
[  281.531937][ T7299] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.531951][ T7299] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.109036][ T7303] loop1: detected capacity change from 0 to 32768
[  282.114716][ T7303] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.114739][ T7303] CPU: 1 UID: 0 PID: 7303 Comm: syz.1.196 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  282.114759][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  282.114769][ T7303] Call Trace:
[  282.114777][ T7303]  <TASK>
[  282.114785][ T7303]  dump_stack_lvl+0xe8/0x150
[  282.114814][ T7303]  sysfs_create_dir_ns+0x271/0x2a0
[  282.114835][ T7303]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  282.114860][ T7303]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  282.114882][ T7303]  ? rt_spin_unlock+0x160/0x200
[  282.114914][ T7303]  kobject_add_internal+0x631/0xd10
[  282.114939][ T7303]  kobject_init_and_add+0x12b/0x1a0
[  282.114970][ T7303]  ? __pfx_kobject_init_and_add+0x10/0x10
[  282.114990][ T7303]  ? __raw_spin_lock_init+0x45/0x100
[  282.115014][ T7303]  ? __init_swait_queue_head+0xa9/0x150
[  282.115046][ T7303]  gfs2_sys_fs_add+0x257/0x480
[  282.115064][ T7303]  ? is_dynamic_key+0x1ac/0x1c0
[  282.115089][ T7303]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  282.115117][ T7303]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  282.115155][ T7303]  gfs2_fill_super+0x141c/0x2220
[  282.115193][ T7303]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.115215][ T7303]  ? rt_spin_unlock+0x14f/0x200
[  282.115239][ T7303]  ? sb_set_blocksize+0x11b/0x210
[  282.115267][ T7303]  ? setup_bdev_super+0x4c1/0x5b0
[  282.115293][ T7303]  get_tree_bdev_flags+0x431/0x4f0
[  282.115322][ T7303]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.115344][ T7303]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  282.115364][ T7303]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  282.115401][ T7303]  gfs2_get_tree+0x51/0x1e0
[  282.115428][ T7303]  vfs_get_tree+0x92/0x2a0
[  282.115452][ T7303]  do_new_mount+0x341/0xd30
[  282.115469][ T7303]  ? apparmor_capable+0x126/0x170
[  282.115500][ T7303]  ? __pfx_do_new_mount+0x10/0x10
[  282.115518][ T7303]  ? ns_capable+0x89/0xe0
[  282.115543][ T7303]  ? user_path_at+0xd4/0x160
[  282.115567][ T7303]  ? user_path_at+0xd4/0x160
[  282.115589][ T7303]  __se_sys_mount+0x31d/0x420
[  282.115614][ T7303]  ? __pfx___se_sys_mount+0x10/0x10
[  282.115638][ T7303]  ? __x64_sys_mount+0x20/0xc0
[  282.115656][ T7303]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.115677][ T7303]  do_syscall_64+0x15f/0xf80
[  282.115699][ T7303]  ? trace_irq_disable+0x3b/0x140
[  282.115729][ T7303]  ? clear_bhb_loop+0x40/0x90
[  282.115751][ T7303]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.115768][ T7303] RIP: 0033:0x7fb8cc86b60a
[  282.115783][ T7303] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  282.115797][ T7303] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.115815][ T7303] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  282.115827][ T7303] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  282.115838][ T7303] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  282.115850][ T7303] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  282.115860][ T7303] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  282.115887][ T7303]  </TASK>
[  282.191564][ T7303] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.191586][ T7303] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.716660][ T7307] loop1: detected capacity change from 0 to 32768
[  282.722512][ T7307] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.722535][ T7307] CPU: 0 UID: 0 PID: 7307 Comm: syz.1.197 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  282.722555][ T7307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  282.722566][ T7307] Call Trace:
[  282.722574][ T7307]  <TASK>
[  282.722582][ T7307]  dump_stack_lvl+0xe8/0x150
[  282.722610][ T7307]  sysfs_create_dir_ns+0x271/0x2a0
[  282.722631][ T7307]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  282.722654][ T7307]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  282.722675][ T7307]  ? rt_spin_unlock+0x160/0x200
[  282.722698][ T7307]  kobject_add_internal+0x631/0xd10
[  282.722724][ T7307]  kobject_init_and_add+0x12b/0x1a0
[  282.722747][ T7307]  ? __pfx_kobject_init_and_add+0x10/0x10
[  282.722768][ T7307]  ? __raw_spin_lock_init+0x45/0x100
[  282.722793][ T7307]  ? __init_swait_queue_head+0xa9/0x150
2026/05/01 21:43:42 executed programs: 183
[  282.722820][ T7307]  gfs2_sys_fs_add+0x257/0x480
[  282.722840][ T7307]  ? is_dynamic_key+0x1ac/0x1c0
[  282.722865][ T7307]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  282.722894][ T7307]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  282.722940][ T7307]  gfs2_fill_super+0x141c/0x2220
[  282.722979][ T7307]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.723001][ T7307]  ? rt_spin_unlock+0x14f/0x200
[  282.723026][ T7307]  ? sb_set_blocksize+0x11b/0x210
[  282.723053][ T7307]  ? setup_bdev_super+0x4c1/0x5b0
[  282.723080][ T7307]  get_tree_bdev_flags+0x431/0x4f0
[  282.723103][ T7307]  ? __pfx_gfs2_fill_super+0x10/0x10
[  282.723126][ T7307]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  282.723146][ T7307]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  282.723178][ T7307]  gfs2_get_tree+0x51/0x1e0
[  282.723206][ T7307]  vfs_get_tree+0x92/0x2a0
[  282.723231][ T7307]  do_new_mount+0x341/0xd30
[  282.723248][ T7307]  ? apparmor_capable+0x126/0x170
[  282.723278][ T7307]  ? __pfx_do_new_mount+0x10/0x10
[  282.723296][ T7307]  ? ns_capable+0x89/0xe0
[  282.723320][ T7307]  ? user_path_at+0xd4/0x160
[  282.723345][ T7307]  ? user_path_at+0xd4/0x160
[  282.723367][ T7307]  __se_sys_mount+0x31d/0x420
[  282.723390][ T7307]  ? __pfx___se_sys_mount+0x10/0x10
[  282.723415][ T7307]  ? __x64_sys_mount+0x20/0xc0
[  282.723432][ T7307]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.723471][ T7307]  do_syscall_64+0x15f/0xf80
[  282.723494][ T7307]  ? trace_irq_disable+0x3b/0x140
[  282.723518][ T7307]  ? clear_bhb_loop+0x40/0x90
[  282.723540][ T7307]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  282.723558][ T7307] RIP: 0033:0x7fb8cc86b60a
[  282.723576][ T7307] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  282.723591][ T7307] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.723612][ T7307] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  282.723625][ T7307] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  282.723639][ T7307] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  282.723651][ T7307] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  282.723664][ T7307] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  282.723693][ T7307]  </TASK>
[  282.723719][ T7307] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.728836][ T7307] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.287490][ T7311] loop1: detected capacity change from 0 to 32768
[  283.293173][ T7311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.293195][ T7311] CPU: 1 UID: 0 PID: 7311 Comm: syz.1.198 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  283.293214][ T7311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  283.293224][ T7311] Call Trace:
[  283.293232][ T7311]  <TASK>
[  283.293240][ T7311]  dump_stack_lvl+0xe8/0x150
[  283.293270][ T7311]  sysfs_create_dir_ns+0x271/0x2a0
[  283.293290][ T7311]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  283.293314][ T7311]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  283.293336][ T7311]  ? rt_spin_unlock+0x160/0x200
[  283.293358][ T7311]  kobject_add_internal+0x631/0xd10
[  283.293385][ T7311]  kobject_init_and_add+0x12b/0x1a0
[  283.293408][ T7311]  ? __pfx_kobject_init_and_add+0x10/0x10
[  283.293428][ T7311]  ? __raw_spin_lock_init+0x45/0x100
[  283.293451][ T7311]  ? __init_swait_queue_head+0xa9/0x150
[  283.293474][ T7311]  gfs2_sys_fs_add+0x257/0x480
[  283.293490][ T7311]  ? is_dynamic_key+0x1ac/0x1c0
[  283.293514][ T7311]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  283.293542][ T7311]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  283.293580][ T7311]  gfs2_fill_super+0x141c/0x2220
[  283.293619][ T7311]  ? __pfx_gfs2_fill_super+0x10/0x10
[  283.293646][ T7311]  ? rt_spin_unlock+0x14f/0x200
[  283.293681][ T7311]  ? sb_set_blocksize+0x11b/0x210
[  283.293709][ T7311]  ? setup_bdev_super+0x4c1/0x5b0
[  283.293734][ T7311]  get_tree_bdev_flags+0x431/0x4f0
[  283.293757][ T7311]  ? __pfx_gfs2_fill_super+0x10/0x10
[  283.293780][ T7311]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  283.293800][ T7311]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  283.293833][ T7311]  gfs2_get_tree+0x51/0x1e0
[  283.293860][ T7311]  vfs_get_tree+0x92/0x2a0
[  283.293885][ T7311]  do_new_mount+0x341/0xd30
[  283.293902][ T7311]  ? apparmor_capable+0x126/0x170
[  283.293933][ T7311]  ? __pfx_do_new_mount+0x10/0x10
[  283.293951][ T7311]  ? ns_capable+0x89/0xe0
[  283.293975][ T7311]  ? user_path_at+0xd4/0x160
[  283.293999][ T7311]  ? user_path_at+0xd4/0x160
[  283.294021][ T7311]  __se_sys_mount+0x31d/0x420
[  283.294044][ T7311]  ? __pfx___se_sys_mount+0x10/0x10
[  283.294069][ T7311]  ? __x64_sys_mount+0x20/0xc0
[  283.294087][ T7311]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.294107][ T7311]  do_syscall_64+0x15f/0xf80
[  283.294131][ T7311]  ? trace_irq_disable+0x3b/0x140
[  283.294155][ T7311]  ? clear_bhb_loop+0x40/0x90
[  283.294177][ T7311]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.294195][ T7311] RIP: 0033:0x7fb8cc86b60a
[  283.294212][ T7311] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  283.294228][ T7311] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.294248][ T7311] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  283.294262][ T7311] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  283.294274][ T7311] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  283.294286][ T7311] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  283.294298][ T7311] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  283.294328][ T7311]  </TASK>
[  283.314590][ T7311] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.314613][ T7311] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.860006][ T7315] loop1: detected capacity change from 0 to 32768
[  283.871254][ T7315] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.871277][ T7315] CPU: 1 UID: 0 PID: 7315 Comm: syz.1.199 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  283.871297][ T7315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  283.871307][ T7315] Call Trace:
[  283.871315][ T7315]  <TASK>
[  283.871322][ T7315]  dump_stack_lvl+0xe8/0x150
[  283.871350][ T7315]  sysfs_create_dir_ns+0x271/0x2a0
[  283.871371][ T7315]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  283.871394][ T7315]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  283.871413][ T7315]  ? rt_spin_unlock+0x160/0x200
[  283.871434][ T7315]  kobject_add_internal+0x631/0xd10
[  283.871459][ T7315]  kobject_init_and_add+0x12b/0x1a0
[  283.871482][ T7315]  ? __pfx_kobject_init_and_add+0x10/0x10
[  283.871501][ T7315]  ? __raw_spin_lock_init+0x45/0x100
[  283.871525][ T7315]  ? __init_swait_queue_head+0xa9/0x150
[  283.871559][ T7315]  gfs2_sys_fs_add+0x257/0x480
[  283.871579][ T7315]  ? is_dynamic_key+0x1ac/0x1c0
[  283.871604][ T7315]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  283.871631][ T7315]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  283.871668][ T7315]  gfs2_fill_super+0x141c/0x2220
[  283.871707][ T7315]  ? __pfx_gfs2_fill_super+0x10/0x10
[  283.871729][ T7315]  ? rt_spin_unlock+0x14f/0x200
[  283.871754][ T7315]  ? sb_set_blocksize+0x11b/0x210
[  283.871781][ T7315]  ? setup_bdev_super+0x4c1/0x5b0
[  283.871805][ T7315]  get_tree_bdev_flags+0x431/0x4f0
[  283.871829][ T7315]  ? __pfx_gfs2_fill_super+0x10/0x10
[  283.871851][ T7315]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  283.871871][ T7315]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  283.871903][ T7315]  gfs2_get_tree+0x51/0x1e0
[  283.871930][ T7315]  vfs_get_tree+0x92/0x2a0
[  283.871955][ T7315]  do_new_mount+0x341/0xd30
[  283.871971][ T7315]  ? apparmor_capable+0x126/0x170
[  283.872002][ T7315]  ? __pfx_do_new_mount+0x10/0x10
[  283.872020][ T7315]  ? ns_capable+0x89/0xe0
[  283.872046][ T7315]  ? user_path_at+0xd4/0x160
[  283.872071][ T7315]  ? user_path_at+0xd4/0x160
[  283.872093][ T7315]  __se_sys_mount+0x31d/0x420
[  283.872117][ T7315]  ? __pfx___se_sys_mount+0x10/0x10
[  283.872140][ T7315]  ? __x64_sys_mount+0x20/0xc0
[  283.872156][ T7315]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.872175][ T7315]  do_syscall_64+0x15f/0xf80
[  283.872196][ T7315]  ? trace_irq_disable+0x3b/0x140
[  283.872219][ T7315]  ? clear_bhb_loop+0x40/0x90
[  283.872240][ T7315]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  283.872258][ T7315] RIP: 0033:0x7fb8cc86b60a
[  283.872275][ T7315] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  283.872291][ T7315] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.872310][ T7315] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  283.872323][ T7315] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  283.872336][ T7315] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  283.872348][ T7315] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  283.872360][ T7315] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  283.872393][ T7315]  </TASK>
[  283.872462][ T7315] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.872477][ T7315] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.441446][ T7319] loop1: detected capacity change from 0 to 32768
[  284.451500][ T7319] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.451522][ T7319] CPU: 0 UID: 0 PID: 7319 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  284.451542][ T7319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  284.451551][ T7319] Call Trace:
[  284.451559][ T7319]  <TASK>
[  284.451566][ T7319]  dump_stack_lvl+0xe8/0x150
[  284.451597][ T7319]  sysfs_create_dir_ns+0x271/0x2a0
[  284.451617][ T7319]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  284.451641][ T7319]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  284.451664][ T7319]  ? rt_spin_unlock+0x160/0x200
[  284.451687][ T7319]  kobject_add_internal+0x631/0xd10
[  284.451714][ T7319]  kobject_init_and_add+0x12b/0x1a0
[  284.451738][ T7319]  ? __pfx_kobject_init_and_add+0x10/0x10
[  284.451758][ T7319]  ? __raw_spin_lock_init+0x45/0x100
[  284.451793][ T7319]  ? __init_swait_queue_head+0xa9/0x150
[  284.451818][ T7319]  gfs2_sys_fs_add+0x257/0x480
[  284.451837][ T7319]  ? is_dynamic_key+0x1ac/0x1c0
[  284.451863][ T7319]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  284.451891][ T7319]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  284.451930][ T7319]  gfs2_fill_super+0x141c/0x2220
[  284.451967][ T7319]  ? __pfx_gfs2_fill_super+0x10/0x10
[  284.451989][ T7319]  ? rt_spin_unlock+0x14f/0x200
[  284.452011][ T7319]  ? sb_set_blocksize+0x11b/0x210
[  284.452038][ T7319]  ? setup_bdev_super+0x4c1/0x5b0
[  284.452061][ T7319]  get_tree_bdev_flags+0x431/0x4f0
[  284.452084][ T7319]  ? __pfx_gfs2_fill_super+0x10/0x10
[  284.452107][ T7319]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  284.452126][ T7319]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  284.452155][ T7319]  gfs2_get_tree+0x51/0x1e0
[  284.452180][ T7319]  vfs_get_tree+0x92/0x2a0
[  284.452204][ T7319]  do_new_mount+0x341/0xd30
[  284.452221][ T7319]  ? apparmor_capable+0x126/0x170
[  284.452251][ T7319]  ? __pfx_do_new_mount+0x10/0x10
[  284.452268][ T7319]  ? ns_capable+0x89/0xe0
[  284.452293][ T7319]  ? user_path_at+0xd4/0x160
[  284.452318][ T7319]  ? user_path_at+0xd4/0x160
[  284.452339][ T7319]  __se_sys_mount+0x31d/0x420
[  284.452363][ T7319]  ? __pfx___se_sys_mount+0x10/0x10
[  284.452387][ T7319]  ? __x64_sys_mount+0x20/0xc0
[  284.452402][ T7319]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.452423][ T7319]  do_syscall_64+0x15f/0xf80
[  284.452446][ T7319]  ? trace_irq_disable+0x3b/0x140
[  284.452467][ T7319]  ? clear_bhb_loop+0x40/0x90
[  284.452487][ T7319]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  284.452504][ T7319] RIP: 0033:0x7fb8cc86b60a
[  284.452520][ T7319] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  284.452536][ T7319] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.452556][ T7319] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  284.452570][ T7319] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  284.452583][ T7319] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  284.452595][ T7319] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  284.452607][ T7319] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  284.452637][ T7319]  </TASK>
[  284.452664][ T7319] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.452679][ T7319] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.064879][ T7323] loop1: detected capacity change from 0 to 32768
[  285.073018][ T7323] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.073040][ T7323] CPU: 1 UID: 0 PID: 7323 Comm: syz.1.201 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  285.073061][ T7323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  285.073070][ T7323] Call Trace:
[  285.073078][ T7323]  <TASK>
[  285.073085][ T7323]  dump_stack_lvl+0xe8/0x150
[  285.073114][ T7323]  sysfs_create_dir_ns+0x271/0x2a0
[  285.073134][ T7323]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  285.073158][ T7323]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  285.073178][ T7323]  ? rt_spin_unlock+0x160/0x200
[  285.073206][ T7323]  kobject_add_internal+0x631/0xd10
[  285.073232][ T7323]  kobject_init_and_add+0x12b/0x1a0
[  285.073256][ T7323]  ? __pfx_kobject_init_and_add+0x10/0x10
[  285.073277][ T7323]  ? __raw_spin_lock_init+0x45/0x100
[  285.073302][ T7323]  ? __init_swait_queue_head+0xa9/0x150
[  285.073327][ T7323]  gfs2_sys_fs_add+0x257/0x480
[  285.073347][ T7323]  ? is_dynamic_key+0x1ac/0x1c0
[  285.073371][ T7323]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  285.073398][ T7323]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  285.073436][ T7323]  gfs2_fill_super+0x141c/0x2220
[  285.073476][ T7323]  ? __pfx_gfs2_fill_super+0x10/0x10
[  285.073497][ T7323]  ? rt_spin_unlock+0x14f/0x200
[  285.073520][ T7323]  ? sb_set_blocksize+0x11b/0x210
[  285.073546][ T7323]  ? setup_bdev_super+0x4c1/0x5b0
[  285.073571][ T7323]  get_tree_bdev_flags+0x431/0x4f0
[  285.073594][ T7323]  ? __pfx_gfs2_fill_super+0x10/0x10
[  285.073616][ T7323]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  285.073636][ T7323]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  285.073668][ T7323]  gfs2_get_tree+0x51/0x1e0
[  285.073695][ T7323]  vfs_get_tree+0x92/0x2a0
[  285.073728][ T7323]  do_new_mount+0x341/0xd30
[  285.073746][ T7323]  ? apparmor_capable+0x126/0x170
[  285.073777][ T7323]  ? __pfx_do_new_mount+0x10/0x10
[  285.073794][ T7323]  ? ns_capable+0x89/0xe0
[  285.073819][ T7323]  ? user_path_at+0xd4/0x160
[  285.073844][ T7323]  ? user_path_at+0xd4/0x160
[  285.073882][ T7323]  __se_sys_mount+0x31d/0x420
[  285.073908][ T7323]  ? __pfx___se_sys_mount+0x10/0x10
[  285.073935][ T7323]  ? __x64_sys_mount+0x20/0xc0
[  285.073953][ T7323]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.073973][ T7323]  do_syscall_64+0x15f/0xf80
[  285.073997][ T7323]  ? trace_irq_disable+0x3b/0x140
[  285.074020][ T7323]  ? clear_bhb_loop+0x40/0x90
[  285.074043][ T7323]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.074060][ T7323] RIP: 0033:0x7fb8cc86b60a
[  285.074078][ T7323] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  285.074093][ T7323] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.074112][ T7323] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  285.074126][ T7323] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  285.074138][ T7323] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  285.074150][ T7323] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  285.074162][ T7323] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  285.074189][ T7323]  </TASK>
[  285.141005][ T7323] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.141028][ T7323] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.664538][ T7327] loop1: detected capacity change from 0 to 32768
[  285.681723][ T7327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.681745][ T7327] CPU: 1 UID: 0 PID: 7327 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  285.681765][ T7327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  285.681775][ T7327] Call Trace:
[  285.681783][ T7327]  <TASK>
[  285.681791][ T7327]  dump_stack_lvl+0xe8/0x150
[  285.681830][ T7327]  sysfs_create_dir_ns+0x271/0x2a0
[  285.681851][ T7327]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  285.681874][ T7327]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  285.681896][ T7327]  ? rt_spin_unlock+0x160/0x200
[  285.681920][ T7327]  kobject_add_internal+0x631/0xd10
[  285.681947][ T7327]  kobject_init_and_add+0x12b/0x1a0
[  285.681971][ T7327]  ? __pfx_kobject_init_and_add+0x10/0x10
[  285.681990][ T7327]  ? __raw_spin_lock_init+0x45/0x100
[  285.682013][ T7327]  ? __init_swait_queue_head+0xa9/0x150
[  285.682040][ T7327]  gfs2_sys_fs_add+0x257/0x480
[  285.682060][ T7327]  ? is_dynamic_key+0x1ac/0x1c0
[  285.682085][ T7327]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  285.682113][ T7327]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  285.682150][ T7327]  gfs2_fill_super+0x141c/0x2220
[  285.682189][ T7327]  ? __pfx_gfs2_fill_super+0x10/0x10
[  285.682209][ T7327]  ? rt_spin_unlock+0x14f/0x200
[  285.682234][ T7327]  ? sb_set_blocksize+0x11b/0x210
[  285.682260][ T7327]  ? setup_bdev_super+0x4c1/0x5b0
[  285.682285][ T7327]  get_tree_bdev_flags+0x431/0x4f0
[  285.682308][ T7327]  ? __pfx_gfs2_fill_super+0x10/0x10
[  285.682330][ T7327]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  285.682357][ T7327]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  285.682390][ T7327]  gfs2_get_tree+0x51/0x1e0
[  285.682417][ T7327]  vfs_get_tree+0x92/0x2a0
[  285.682441][ T7327]  do_new_mount+0x341/0xd30
[  285.682458][ T7327]  ? apparmor_capable+0x126/0x170
[  285.682489][ T7327]  ? __pfx_do_new_mount+0x10/0x10
[  285.682507][ T7327]  ? ns_capable+0x89/0xe0
[  285.682533][ T7327]  ? user_path_at+0xd4/0x160
[  285.682557][ T7327]  ? user_path_at+0xd4/0x160
[  285.682578][ T7327]  __se_sys_mount+0x31d/0x420
[  285.682601][ T7327]  ? __pfx___se_sys_mount+0x10/0x10
[  285.682631][ T7327]  ? __x64_sys_mount+0x20/0xc0
[  285.682649][ T7327]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.682670][ T7327]  do_syscall_64+0x15f/0xf80
[  285.682693][ T7327]  ? trace_irq_disable+0x3b/0x140
[  285.682717][ T7327]  ? clear_bhb_loop+0x40/0x90
[  285.682739][ T7327]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  285.682756][ T7327] RIP: 0033:0x7fb8cc86b60a
[  285.682773][ T7327] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  285.682789][ T7327] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.682808][ T7327] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  285.682821][ T7327] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  285.682834][ T7327] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  285.682846][ T7327] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  285.682857][ T7327] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  285.682885][ T7327]  </TASK>
[  285.682929][ T7327] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.695084][ T7327] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.268300][ T7331] loop1: detected capacity change from 0 to 32768
[  286.274278][ T7331] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.274302][ T7331] CPU: 1 UID: 0 PID: 7331 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  286.274323][ T7331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  286.274333][ T7331] Call Trace:
[  286.274340][ T7331]  <TASK>
[  286.274348][ T7331]  dump_stack_lvl+0xe8/0x150
[  286.274379][ T7331]  sysfs_create_dir_ns+0x271/0x2a0
[  286.274398][ T7331]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  286.274420][ T7331]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  286.274440][ T7331]  ? rt_spin_unlock+0x160/0x200
[  286.274462][ T7331]  kobject_add_internal+0x631/0xd10
[  286.274485][ T7331]  kobject_init_and_add+0x12b/0x1a0
[  286.274508][ T7331]  ? __pfx_kobject_init_and_add+0x10/0x10
[  286.274527][ T7331]  ? __raw_spin_lock_init+0x45/0x100
[  286.274550][ T7331]  ? __init_swait_queue_head+0xa9/0x150
[  286.274583][ T7331]  gfs2_sys_fs_add+0x257/0x480
[  286.274603][ T7331]  ? is_dynamic_key+0x1ac/0x1c0
[  286.274628][ T7331]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  286.274658][ T7331]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  286.274698][ T7331]  gfs2_fill_super+0x141c/0x2220
[  286.274737][ T7331]  ? __pfx_gfs2_fill_super+0x10/0x10
[  286.274754][ T7331]  ? rt_spin_unlock+0x14f/0x200
[  286.274775][ T7331]  ? sb_set_blocksize+0x11b/0x210
[  286.274800][ T7331]  ? setup_bdev_super+0x4c1/0x5b0
[  286.274824][ T7331]  get_tree_bdev_flags+0x431/0x4f0
[  286.274845][ T7331]  ? __pfx_gfs2_fill_super+0x10/0x10
[  286.274873][ T7331]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  286.274893][ T7331]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  286.274926][ T7331]  gfs2_get_tree+0x51/0x1e0
[  286.274953][ T7331]  vfs_get_tree+0x92/0x2a0
[  286.274978][ T7331]  do_new_mount+0x341/0xd30
[  286.274995][ T7331]  ? apparmor_capable+0x126/0x170
[  286.275026][ T7331]  ? __pfx_do_new_mount+0x10/0x10
[  286.275044][ T7331]  ? ns_capable+0x89/0xe0
[  286.275069][ T7331]  ? user_path_at+0xd4/0x160
[  286.275094][ T7331]  ? user_path_at+0xd4/0x160
[  286.275135][ T7331]  __se_sys_mount+0x31d/0x420
[  286.275160][ T7331]  ? __pfx___se_sys_mount+0x10/0x10
[  286.275184][ T7331]  ? __x64_sys_mount+0x20/0xc0
[  286.275201][ T7331]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.275222][ T7331]  do_syscall_64+0x15f/0xf80
[  286.275246][ T7331]  ? trace_irq_disable+0x3b/0x140
[  286.275269][ T7331]  ? clear_bhb_loop+0x40/0x90
[  286.275291][ T7331]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.275308][ T7331] RIP: 0033:0x7fb8cc86b60a
[  286.275326][ T7331] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  286.275339][ T7331] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.275355][ T7331] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  286.275366][ T7331] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  286.275387][ T7331] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  286.275399][ T7331] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  286.275410][ T7331] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  286.275436][ T7331]  </TASK>
[  286.289020][ T7331] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.289042][ T7331] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.852210][ T7335] loop1: detected capacity change from 0 to 32768
[  286.877326][ T7335] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.877349][ T7335] CPU: 0 UID: 0 PID: 7335 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  286.877370][ T7335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  286.877380][ T7335] Call Trace:
[  286.877388][ T7335]  <TASK>
[  286.877396][ T7335]  dump_stack_lvl+0xe8/0x150
[  286.877425][ T7335]  sysfs_create_dir_ns+0x271/0x2a0
[  286.877445][ T7335]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  286.877468][ T7335]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  286.877483][ T7335]  ? rt_spin_unlock+0x160/0x200
[  286.877502][ T7335]  kobject_add_internal+0x631/0xd10
[  286.877516][ T7335]  kobject_init_and_add+0x12b/0x1a0
[  286.877529][ T7335]  ? __pfx_kobject_init_and_add+0x10/0x10
[  286.877540][ T7335]  ? __raw_spin_lock_init+0x45/0x100
[  286.877555][ T7335]  ? __init_swait_queue_head+0xa9/0x150
[  286.877570][ T7335]  gfs2_sys_fs_add+0x257/0x480
[  286.877581][ T7335]  ? is_dynamic_key+0x1ac/0x1c0
[  286.877596][ T7335]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  286.877612][ T7335]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  286.877634][ T7335]  gfs2_fill_super+0x141c/0x2220
[  286.877656][ T7335]  ? __pfx_gfs2_fill_super+0x10/0x10
[  286.877669][ T7335]  ? rt_spin_unlock+0x14f/0x200
[  286.877683][ T7335]  ? sb_set_blocksize+0x11b/0x210
[  286.877699][ T7335]  ? setup_bdev_super+0x4c1/0x5b0
[  286.877714][ T7335]  get_tree_bdev_flags+0x431/0x4f0
[  286.877727][ T7335]  ? __pfx_gfs2_fill_super+0x10/0x10
[  286.877741][ T7335]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  286.877752][ T7335]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  286.877770][ T7335]  gfs2_get_tree+0x51/0x1e0
[  286.877786][ T7335]  vfs_get_tree+0x92/0x2a0
[  286.877800][ T7335]  do_new_mount+0x341/0xd30
[  286.877809][ T7335]  ? apparmor_capable+0x126/0x170
[  286.877827][ T7335]  ? __pfx_do_new_mount+0x10/0x10
[  286.877836][ T7335]  ? ns_capable+0x89/0xe0
[  286.877851][ T7335]  ? user_path_at+0xd4/0x160
[  286.877864][ T7335]  ? user_path_at+0xd4/0x160
[  286.877876][ T7335]  __se_sys_mount+0x31d/0x420
[  286.877889][ T7335]  ? __pfx___se_sys_mount+0x10/0x10
[  286.877903][ T7335]  ? __x64_sys_mount+0x20/0xc0
[  286.877912][ T7335]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.877924][ T7335]  do_syscall_64+0x15f/0xf80
[  286.877937][ T7335]  ? trace_irq_disable+0x3b/0x140
[  286.877951][ T7335]  ? clear_bhb_loop+0x40/0x90
[  286.877963][ T7335]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.877973][ T7335] RIP: 0033:0x7fb8cc86b60a
[  286.877984][ T7335] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  286.877993][ T7335] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.878004][ T7335] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  286.878012][ T7335] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  286.878019][ T7335] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  286.878026][ T7335] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  286.878032][ T7335] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  286.878048][ T7335]  </TASK>
[  286.878063][ T7335] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.878072][ T7335] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.458346][ T7339] loop1: detected capacity change from 0 to 32768
[  287.482626][ T7339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.482650][ T7339] CPU: 1 UID: 0 PID: 7339 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  287.482671][ T7339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  287.482681][ T7339] Call Trace:
[  287.482689][ T7339]  <TASK>
[  287.482697][ T7339]  dump_stack_lvl+0xe8/0x150
[  287.482728][ T7339]  sysfs_create_dir_ns+0x271/0x2a0
[  287.482748][ T7339]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  287.482770][ T7339]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  287.482792][ T7339]  ? rt_spin_unlock+0x160/0x200
[  287.482815][ T7339]  kobject_add_internal+0x631/0xd10
[  287.482841][ T7339]  kobject_init_and_add+0x12b/0x1a0
[  287.482866][ T7339]  ? __pfx_kobject_init_and_add+0x10/0x10
[  287.482886][ T7339]  ? __raw_spin_lock_init+0x45/0x100
[  287.482911][ T7339]  ? __init_swait_queue_head+0xa9/0x150
[  287.482936][ T7339]  gfs2_sys_fs_add+0x257/0x480
[  287.482956][ T7339]  ? is_dynamic_key+0x1ac/0x1c0
[  287.482980][ T7339]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  287.483009][ T7339]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  287.483046][ T7339]  gfs2_fill_super+0x141c/0x2220
[  287.483085][ T7339]  ? __pfx_gfs2_fill_super+0x10/0x10
[  287.483107][ T7339]  ? rt_spin_unlock+0x14f/0x200
[  287.483131][ T7339]  ? sb_set_blocksize+0x11b/0x210
[  287.483158][ T7339]  ? setup_bdev_super+0x4c1/0x5b0
[  287.483184][ T7339]  get_tree_bdev_flags+0x431/0x4f0
[  287.483207][ T7339]  ? __pfx_gfs2_fill_super+0x10/0x10
[  287.483229][ T7339]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  287.483249][ T7339]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  287.483281][ T7339]  gfs2_get_tree+0x51/0x1e0
[  287.483308][ T7339]  vfs_get_tree+0x92/0x2a0
[  287.483332][ T7339]  do_new_mount+0x341/0xd30
[  287.483350][ T7339]  ? apparmor_capable+0x126/0x170
[  287.483381][ T7339]  ? __pfx_do_new_mount+0x10/0x10
[  287.483399][ T7339]  ? ns_capable+0x89/0xe0
[  287.483423][ T7339]  ? user_path_at+0xd4/0x160
[  287.483447][ T7339]  ? user_path_at+0xd4/0x160
[  287.483480][ T7339]  __se_sys_mount+0x31d/0x420
[  287.483504][ T7339]  ? __pfx___se_sys_mount+0x10/0x10
[  287.483529][ T7339]  ? __x64_sys_mount+0x20/0xc0
[  287.483547][ T7339]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.483568][ T7339]  do_syscall_64+0x15f/0xf80
[  287.483592][ T7339]  ? trace_irq_disable+0x3b/0x140
[  287.483614][ T7339]  ? clear_bhb_loop+0x40/0x90
[  287.483635][ T7339]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  287.483653][ T7339] RIP: 0033:0x7fb8cc86b60a
[  287.483671][ T7339] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  287.483686][ T7339] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.483705][ T7339] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  287.483718][ T7339] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  287.483731][ T7339] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  287.483742][ T7339] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  287.483754][ T7339] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  287.483784][ T7339]  </TASK>
[  287.483810][ T7339] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.483825][ T7339] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.033842][ T7343] loop1: detected capacity change from 0 to 32768
[  288.062406][ T7343] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.062436][ T7343] CPU: 1 UID: 0 PID: 7343 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  288.062457][ T7343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  288.062468][ T7343] Call Trace:
[  288.062476][ T7343]  <TASK>
[  288.062484][ T7343]  dump_stack_lvl+0xe8/0x150
[  288.062512][ T7343]  sysfs_create_dir_ns+0x271/0x2a0
[  288.062533][ T7343]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  288.062556][ T7343]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  288.062579][ T7343]  ? rt_spin_unlock+0x160/0x200
[  288.062602][ T7343]  kobject_add_internal+0x631/0xd10
2026/05/01 21:43:47 executed programs: 192
[  288.062628][ T7343]  kobject_init_and_add+0x12b/0x1a0
[  288.062652][ T7343]  ? __pfx_kobject_init_and_add+0x10/0x10
[  288.062673][ T7343]  ? __raw_spin_lock_init+0x45/0x100
[  288.062698][ T7343]  ? __init_swait_queue_head+0xa9/0x150
[  288.062725][ T7343]  gfs2_sys_fs_add+0x257/0x480
[  288.062745][ T7343]  ? is_dynamic_key+0x1ac/0x1c0
[  288.062771][ T7343]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  288.062799][ T7343]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  288.062837][ T7343]  gfs2_fill_super+0x141c/0x2220
[  288.062878][ T7343]  ? __pfx_gfs2_fill_super+0x10/0x10
[  288.062900][ T7343]  ? rt_spin_unlock+0x14f/0x200
[  288.062924][ T7343]  ? sb_set_blocksize+0x11b/0x210
[  288.062951][ T7343]  ? setup_bdev_super+0x4c1/0x5b0
[  288.062977][ T7343]  get_tree_bdev_flags+0x431/0x4f0
[  288.063001][ T7343]  ? __pfx_gfs2_fill_super+0x10/0x10
[  288.063024][ T7343]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  288.063044][ T7343]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  288.063075][ T7343]  gfs2_get_tree+0x51/0x1e0
[  288.063103][ T7343]  vfs_get_tree+0x92/0x2a0
[  288.063128][ T7343]  do_new_mount+0x341/0xd30
[  288.063144][ T7343]  ? apparmor_capable+0x126/0x170
[  288.063174][ T7343]  ? __pfx_do_new_mount+0x10/0x10
[  288.063191][ T7343]  ? ns_capable+0x89/0xe0
[  288.063215][ T7343]  ? user_path_at+0xd4/0x160
[  288.063239][ T7343]  ? user_path_at+0xd4/0x160
[  288.063260][ T7343]  __se_sys_mount+0x31d/0x420
[  288.063284][ T7343]  ? __pfx___se_sys_mount+0x10/0x10
[  288.063308][ T7343]  ? __x64_sys_mount+0x20/0xc0
[  288.063326][ T7343]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.063346][ T7343]  do_syscall_64+0x15f/0xf80
[  288.063370][ T7343]  ? trace_irq_disable+0x3b/0x140
[  288.063393][ T7343]  ? clear_bhb_loop+0x40/0x90
[  288.063421][ T7343]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.063440][ T7343] RIP: 0033:0x7fb8cc86b60a
[  288.063457][ T7343] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  288.063473][ T7343] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.063493][ T7343] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  288.063507][ T7343] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  288.063524][ T7343] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  288.063536][ T7343] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  288.063548][ T7343] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  288.063578][ T7343]  </TASK>
[  288.063930][ T7343] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.063947][ T7343] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.599531][ T7347] loop1: detected capacity change from 0 to 32768
[  288.602635][ T7347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.602656][ T7347] CPU: 1 UID: 0 PID: 7347 Comm: syz.1.207 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  288.602676][ T7347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  288.602686][ T7347] Call Trace:
[  288.602694][ T7347]  <TASK>
[  288.602700][ T7347]  dump_stack_lvl+0xe8/0x150
[  288.602728][ T7347]  sysfs_create_dir_ns+0x271/0x2a0
[  288.602749][ T7347]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  288.602772][ T7347]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  288.602795][ T7347]  ? rt_spin_unlock+0x160/0x200
[  288.602818][ T7347]  kobject_add_internal+0x631/0xd10
[  288.602844][ T7347]  kobject_init_and_add+0x12b/0x1a0
[  288.602869][ T7347]  ? __pfx_kobject_init_and_add+0x10/0x10
[  288.602889][ T7347]  ? __raw_spin_lock_init+0x45/0x100
[  288.602913][ T7347]  ? __init_swait_queue_head+0xa9/0x150
[  288.602940][ T7347]  gfs2_sys_fs_add+0x257/0x480
[  288.602960][ T7347]  ? is_dynamic_key+0x1ac/0x1c0
[  288.602981][ T7347]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  288.603010][ T7347]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  288.603056][ T7347]  gfs2_fill_super+0x141c/0x2220
[  288.603096][ T7347]  ? __pfx_gfs2_fill_super+0x10/0x10
[  288.603118][ T7347]  ? rt_spin_unlock+0x14f/0x200
[  288.603138][ T7347]  ? sb_set_blocksize+0x11b/0x210
[  288.603165][ T7347]  ? setup_bdev_super+0x4c1/0x5b0
[  288.603188][ T7347]  get_tree_bdev_flags+0x431/0x4f0
[  288.603210][ T7347]  ? __pfx_gfs2_fill_super+0x10/0x10
[  288.603232][ T7347]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  288.603252][ T7347]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  288.603281][ T7347]  gfs2_get_tree+0x51/0x1e0
[  288.603306][ T7347]  vfs_get_tree+0x92/0x2a0
[  288.603329][ T7347]  do_new_mount+0x341/0xd30
[  288.603345][ T7347]  ? apparmor_capable+0x126/0x170
[  288.603377][ T7347]  ? __pfx_do_new_mount+0x10/0x10
[  288.603394][ T7347]  ? ns_capable+0x89/0xe0
[  288.603417][ T7347]  ? user_path_at+0xd4/0x160
[  288.603442][ T7347]  ? user_path_at+0xd4/0x160
[  288.603464][ T7347]  __se_sys_mount+0x31d/0x420
[  288.603485][ T7347]  ? __pfx___se_sys_mount+0x10/0x10
[  288.603509][ T7347]  ? __x64_sys_mount+0x20/0xc0
[  288.603527][ T7347]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.603547][ T7347]  do_syscall_64+0x15f/0xf80
[  288.603569][ T7347]  ? trace_irq_disable+0x3b/0x140
[  288.603592][ T7347]  ? clear_bhb_loop+0x40/0x90
[  288.603614][ T7347]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  288.603632][ T7347] RIP: 0033:0x7fb8cc86b60a
[  288.603650][ T7347] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  288.603665][ T7347] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.603685][ T7347] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  288.603698][ T7347] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  288.603712][ T7347] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  288.603724][ T7347] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  288.603736][ T7347] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  288.603766][ T7347]  </TASK>
[  288.603793][ T7347] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.603807][ T7347] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.167652][ T7351] loop1: detected capacity change from 0 to 32768
[  289.181292][ T7351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.181322][ T7351] CPU: 1 UID: 0 PID: 7351 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  289.181340][ T7351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  289.181349][ T7351] Call Trace:
[  289.181357][ T7351]  <TASK>
[  289.181364][ T7351]  dump_stack_lvl+0xe8/0x150
[  289.181392][ T7351]  sysfs_create_dir_ns+0x271/0x2a0
[  289.181412][ T7351]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  289.181434][ T7351]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  289.181457][ T7351]  ? rt_spin_unlock+0x160/0x200
[  289.181480][ T7351]  kobject_add_internal+0x631/0xd10
[  289.181504][ T7351]  kobject_init_and_add+0x12b/0x1a0
[  289.181526][ T7351]  ? __pfx_kobject_init_and_add+0x10/0x10
[  289.181544][ T7351]  ? __raw_spin_lock_init+0x45/0x100
[  289.181565][ T7351]  ? __init_swait_queue_head+0xa9/0x150
[  289.181590][ T7351]  gfs2_sys_fs_add+0x257/0x480
[  289.181610][ T7351]  ? is_dynamic_key+0x1ac/0x1c0
[  289.181633][ T7351]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  289.181657][ T7351]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  289.181692][ T7351]  gfs2_fill_super+0x141c/0x2220
[  289.181728][ T7351]  ? __pfx_gfs2_fill_super+0x10/0x10
[  289.181748][ T7351]  ? rt_spin_unlock+0x14f/0x200
[  289.181771][ T7351]  ? sb_set_blocksize+0x11b/0x210
[  289.181797][ T7351]  ? setup_bdev_super+0x4c1/0x5b0
[  289.181820][ T7351]  get_tree_bdev_flags+0x431/0x4f0
[  289.181841][ T7351]  ? __pfx_gfs2_fill_super+0x10/0x10
[  289.181863][ T7351]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  289.181883][ T7351]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  289.181912][ T7351]  gfs2_get_tree+0x51/0x1e0
[  289.181939][ T7351]  vfs_get_tree+0x92/0x2a0
[  289.181964][ T7351]  do_new_mount+0x341/0xd30
[  289.181980][ T7351]  ? apparmor_capable+0x126/0x170
[  289.182015][ T7351]  ? __pfx_do_new_mount+0x10/0x10
[  289.182033][ T7351]  ? ns_capable+0x89/0xe0
[  289.182056][ T7351]  ? user_path_at+0xd4/0x160
[  289.182082][ T7351]  ? user_path_at+0xd4/0x160
[  289.182103][ T7351]  __se_sys_mount+0x31d/0x420
[  289.182126][ T7351]  ? __pfx___se_sys_mount+0x10/0x10
[  289.182149][ T7351]  ? __x64_sys_mount+0x20/0xc0
[  289.182167][ T7351]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.182187][ T7351]  do_syscall_64+0x15f/0xf80
[  289.182211][ T7351]  ? trace_irq_disable+0x3b/0x140
[  289.182235][ T7351]  ? clear_bhb_loop+0x40/0x90
[  289.182256][ T7351]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.182273][ T7351] RIP: 0033:0x7fb8cc86b60a
[  289.182300][ T7351] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  289.182316][ T7351] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.182335][ T7351] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  289.182349][ T7351] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  289.182362][ T7351] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  289.182372][ T7351] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  289.182384][ T7351] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  289.182410][ T7351]  </TASK>
[  289.182447][ T7351] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.182461][ T7351] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.745380][ T7355] loop1: detected capacity change from 0 to 32768
[  289.751987][ T7355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.752011][ T7355] CPU: 1 UID: 0 PID: 7355 Comm: syz.1.209 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  289.752032][ T7355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  289.752043][ T7355] Call Trace:
[  289.752051][ T7355]  <TASK>
[  289.752059][ T7355]  dump_stack_lvl+0xe8/0x150
[  289.752088][ T7355]  sysfs_create_dir_ns+0x271/0x2a0
[  289.752108][ T7355]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  289.752131][ T7355]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  289.752153][ T7355]  ? rt_spin_unlock+0x160/0x200
[  289.752176][ T7355]  kobject_add_internal+0x631/0xd10
[  289.752203][ T7355]  kobject_init_and_add+0x12b/0x1a0
[  289.752236][ T7355]  ? __pfx_kobject_init_and_add+0x10/0x10
[  289.752256][ T7355]  ? __raw_spin_lock_init+0x45/0x100
[  289.752281][ T7355]  ? __init_swait_queue_head+0xa9/0x150
[  289.752308][ T7355]  gfs2_sys_fs_add+0x257/0x480
[  289.752329][ T7355]  ? is_dynamic_key+0x1ac/0x1c0
[  289.752354][ T7355]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  289.752382][ T7355]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  289.752424][ T7355]  gfs2_fill_super+0x141c/0x2220
[  289.752465][ T7355]  ? __pfx_gfs2_fill_super+0x10/0x10
[  289.752487][ T7355]  ? rt_spin_unlock+0x14f/0x200
[  289.752511][ T7355]  ? sb_set_blocksize+0x11b/0x210
[  289.752539][ T7355]  ? setup_bdev_super+0x4c1/0x5b0
[  289.752565][ T7355]  get_tree_bdev_flags+0x431/0x4f0
[  289.752588][ T7355]  ? __pfx_gfs2_fill_super+0x10/0x10
[  289.752611][ T7355]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  289.752631][ T7355]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  289.752663][ T7355]  gfs2_get_tree+0x51/0x1e0
[  289.752691][ T7355]  vfs_get_tree+0x92/0x2a0
[  289.752716][ T7355]  do_new_mount+0x341/0xd30
[  289.752733][ T7355]  ? apparmor_capable+0x126/0x170
[  289.752761][ T7355]  ? __pfx_do_new_mount+0x10/0x10
[  289.752778][ T7355]  ? ns_capable+0x89/0xe0
[  289.752799][ T7355]  ? user_path_at+0xd4/0x160
[  289.752821][ T7355]  ? user_path_at+0xd4/0x160
[  289.752841][ T7355]  __se_sys_mount+0x31d/0x420
[  289.752864][ T7355]  ? __pfx___se_sys_mount+0x10/0x10
[  289.752886][ T7355]  ? __x64_sys_mount+0x20/0xc0
[  289.752902][ T7355]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.752920][ T7355]  do_syscall_64+0x15f/0xf80
[  289.752942][ T7355]  ? trace_irq_disable+0x3b/0x140
[  289.752968][ T7355]  ? clear_bhb_loop+0x40/0x90
[  289.752987][ T7355]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  289.753003][ T7355] RIP: 0033:0x7fb8cc86b60a
[  289.753019][ T7355] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  289.753034][ T7355] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.753052][ T7355] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  289.753065][ T7355] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  289.753076][ T7355] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  289.753088][ T7355] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  289.753100][ T7355] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  289.753131][ T7355]  </TASK>
[  289.753167][ T7355] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.753245][ T7355] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.299740][ T7359] loop1: detected capacity change from 0 to 32768
[  290.316484][ T7359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.316506][ T7359] CPU: 0 UID: 0 PID: 7359 Comm: syz.1.210 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  290.316527][ T7359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  290.316537][ T7359] Call Trace:
[  290.316545][ T7359]  <TASK>
[  290.316552][ T7359]  dump_stack_lvl+0xe8/0x150
[  290.316582][ T7359]  sysfs_create_dir_ns+0x271/0x2a0
[  290.316602][ T7359]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  290.316625][ T7359]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  290.316646][ T7359]  ? rt_spin_unlock+0x160/0x200
[  290.316669][ T7359]  kobject_add_internal+0x631/0xd10
[  290.316695][ T7359]  kobject_init_and_add+0x12b/0x1a0
[  290.316718][ T7359]  ? __pfx_kobject_init_and_add+0x10/0x10
[  290.316738][ T7359]  ? __raw_spin_lock_init+0x45/0x100
[  290.316762][ T7359]  ? __init_swait_queue_head+0xa9/0x150
[  290.316789][ T7359]  gfs2_sys_fs_add+0x257/0x480
[  290.316809][ T7359]  ? is_dynamic_key+0x1ac/0x1c0
[  290.316833][ T7359]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  290.316859][ T7359]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  290.316895][ T7359]  gfs2_fill_super+0x141c/0x2220
[  290.316934][ T7359]  ? __pfx_gfs2_fill_super+0x10/0x10
[  290.316960][ T7359]  ? rt_spin_unlock+0x14f/0x200
[  290.316986][ T7359]  ? sb_set_blocksize+0x11b/0x210
[  290.317013][ T7359]  ? setup_bdev_super+0x4c1/0x5b0
[  290.317039][ T7359]  get_tree_bdev_flags+0x431/0x4f0
[  290.317061][ T7359]  ? __pfx_gfs2_fill_super+0x10/0x10
[  290.317084][ T7359]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  290.317103][ T7359]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  290.317133][ T7359]  gfs2_get_tree+0x51/0x1e0
[  290.317167][ T7359]  vfs_get_tree+0x92/0x2a0
[  290.317191][ T7359]  do_new_mount+0x341/0xd30
[  290.317209][ T7359]  ? apparmor_capable+0x126/0x170
[  290.317239][ T7359]  ? __pfx_do_new_mount+0x10/0x10
[  290.317257][ T7359]  ? ns_capable+0x89/0xe0
[  290.317282][ T7359]  ? user_path_at+0xd4/0x160
[  290.317307][ T7359]  ? user_path_at+0xd4/0x160
[  290.317329][ T7359]  __se_sys_mount+0x31d/0x420
[  290.317353][ T7359]  ? __pfx___se_sys_mount+0x10/0x10
[  290.317377][ T7359]  ? __x64_sys_mount+0x20/0xc0
[  290.317395][ T7359]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.317415][ T7359]  do_syscall_64+0x15f/0xf80
[  290.317438][ T7359]  ? trace_irq_disable+0x3b/0x140
[  290.317462][ T7359]  ? clear_bhb_loop+0x40/0x90
[  290.317484][ T7359]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.317502][ T7359] RIP: 0033:0x7fb8cc86b60a
[  290.317520][ T7359] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  290.317535][ T7359] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.317555][ T7359] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  290.317569][ T7359] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  290.317582][ T7359] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  290.317594][ T7359] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  290.317607][ T7359] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  290.317637][ T7359]  </TASK>
[  290.317684][ T7359] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.317698][ T7359] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.879746][ T7363] loop1: detected capacity change from 0 to 32768
[  290.892825][ T7363] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.892849][ T7363] CPU: 1 UID: 0 PID: 7363 Comm: syz.1.211 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  290.892868][ T7363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  290.892879][ T7363] Call Trace:
[  290.892886][ T7363]  <TASK>
[  290.892902][ T7363]  dump_stack_lvl+0xe8/0x150
[  290.892931][ T7363]  sysfs_create_dir_ns+0x271/0x2a0
[  290.892951][ T7363]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  290.892975][ T7363]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  290.892997][ T7363]  ? rt_spin_unlock+0x160/0x200
[  290.893019][ T7363]  kobject_add_internal+0x631/0xd10
[  290.893045][ T7363]  kobject_init_and_add+0x12b/0x1a0
[  290.893069][ T7363]  ? __pfx_kobject_init_and_add+0x10/0x10
[  290.893089][ T7363]  ? __raw_spin_lock_init+0x45/0x100
[  290.893113][ T7363]  ? __init_swait_queue_head+0xa9/0x150
[  290.893140][ T7363]  gfs2_sys_fs_add+0x257/0x480
[  290.893159][ T7363]  ? is_dynamic_key+0x1ac/0x1c0
[  290.893184][ T7363]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  290.893211][ T7363]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  290.893250][ T7363]  gfs2_fill_super+0x141c/0x2220
[  290.893288][ T7363]  ? __pfx_gfs2_fill_super+0x10/0x10
[  290.893311][ T7363]  ? rt_spin_unlock+0x14f/0x200
[  290.893335][ T7363]  ? sb_set_blocksize+0x11b/0x210
[  290.893363][ T7363]  ? setup_bdev_super+0x4c1/0x5b0
[  290.893388][ T7363]  get_tree_bdev_flags+0x431/0x4f0
[  290.893415][ T7363]  ? __pfx_gfs2_fill_super+0x10/0x10
[  290.893438][ T7363]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  290.893458][ T7363]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  290.893491][ T7363]  gfs2_get_tree+0x51/0x1e0
[  290.893518][ T7363]  vfs_get_tree+0x92/0x2a0
[  290.893542][ T7363]  do_new_mount+0x341/0xd30
[  290.893558][ T7363]  ? apparmor_capable+0x126/0x170
[  290.893590][ T7363]  ? __pfx_do_new_mount+0x10/0x10
[  290.893608][ T7363]  ? ns_capable+0x89/0xe0
[  290.893632][ T7363]  ? user_path_at+0xd4/0x160
[  290.893657][ T7363]  ? user_path_at+0xd4/0x160
[  290.893679][ T7363]  __se_sys_mount+0x31d/0x420
[  290.893702][ T7363]  ? __pfx___se_sys_mount+0x10/0x10
[  290.893727][ T7363]  ? __x64_sys_mount+0x20/0xc0
[  290.893744][ T7363]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.893764][ T7363]  do_syscall_64+0x15f/0xf80
[  290.893786][ T7363]  ? trace_irq_disable+0x3b/0x140
[  290.893808][ T7363]  ? clear_bhb_loop+0x40/0x90
[  290.893830][ T7363]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  290.893847][ T7363] RIP: 0033:0x7fb8cc86b60a
[  290.893865][ T7363] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  290.893880][ T7363] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.893905][ T7363] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  290.893919][ T7363] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  290.893932][ T7363] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  290.893944][ T7363] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  290.893956][ T7363] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  290.893984][ T7363]  </TASK>
[  290.894020][ T7363] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.894035][ T7363] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.442118][ T7367] loop1: detected capacity change from 0 to 32768
[  291.446668][ T7367] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.446691][ T7367] CPU: 1 UID: 0 PID: 7367 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  291.446711][ T7367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  291.446721][ T7367] Call Trace:
[  291.446728][ T7367]  <TASK>
[  291.446736][ T7367]  dump_stack_lvl+0xe8/0x150
[  291.446763][ T7367]  sysfs_create_dir_ns+0x271/0x2a0
[  291.446783][ T7367]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  291.446807][ T7367]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  291.446835][ T7367]  ? rt_spin_unlock+0x160/0x200
[  291.446857][ T7367]  kobject_add_internal+0x631/0xd10
[  291.446882][ T7367]  kobject_init_and_add+0x12b/0x1a0
[  291.446906][ T7367]  ? __pfx_kobject_init_and_add+0x10/0x10
[  291.446926][ T7367]  ? __raw_spin_lock_init+0x45/0x100
[  291.446949][ T7367]  ? __init_swait_queue_head+0xa9/0x150
[  291.446975][ T7367]  gfs2_sys_fs_add+0x257/0x480
[  291.446994][ T7367]  ? is_dynamic_key+0x1ac/0x1c0
[  291.447018][ T7367]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  291.447045][ T7367]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  291.447082][ T7367]  gfs2_fill_super+0x141c/0x2220
[  291.447118][ T7367]  ? __pfx_gfs2_fill_super+0x10/0x10
[  291.447139][ T7367]  ? rt_spin_unlock+0x14f/0x200
[  291.447163][ T7367]  ? sb_set_blocksize+0x11b/0x210
[  291.447188][ T7367]  ? setup_bdev_super+0x4c1/0x5b0
[  291.447212][ T7367]  get_tree_bdev_flags+0x431/0x4f0
[  291.447235][ T7367]  ? __pfx_gfs2_fill_super+0x10/0x10
[  291.447257][ T7367]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  291.447276][ T7367]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  291.447307][ T7367]  gfs2_get_tree+0x51/0x1e0
[  291.447333][ T7367]  vfs_get_tree+0x92/0x2a0
[  291.447357][ T7367]  do_new_mount+0x341/0xd30
[  291.447372][ T7367]  ? apparmor_capable+0x126/0x170
[  291.447401][ T7367]  ? __pfx_do_new_mount+0x10/0x10
[  291.447419][ T7367]  ? ns_capable+0x89/0xe0
[  291.447443][ T7367]  ? user_path_at+0xd4/0x160
[  291.447466][ T7367]  ? user_path_at+0xd4/0x160
[  291.447487][ T7367]  __se_sys_mount+0x31d/0x420
[  291.447509][ T7367]  ? __pfx___se_sys_mount+0x10/0x10
[  291.447532][ T7367]  ? __x64_sys_mount+0x20/0xc0
[  291.447549][ T7367]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.447569][ T7367]  do_syscall_64+0x15f/0xf80
[  291.447591][ T7367]  ? trace_irq_disable+0x3b/0x140
[  291.447613][ T7367]  ? clear_bhb_loop+0x40/0x90
[  291.447633][ T7367]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  291.447650][ T7367] RIP: 0033:0x7fb8cc86b60a
[  291.447667][ T7367] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  291.447682][ T7367] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  291.447702][ T7367] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  291.447715][ T7367] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  291.447727][ T7367] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  291.447738][ T7367] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  291.447750][ T7367] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  291.447779][ T7367]  </TASK>
[  291.447804][ T7367] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  291.447818][ T7367] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  292.059681][ T7371] loop1: detected capacity change from 0 to 32768
[  292.064177][ T7371] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.064199][ T7371] CPU: 0 UID: 0 PID: 7371 Comm: syz.1.213 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  292.064218][ T7371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  292.064228][ T7371] Call Trace:
[  292.064235][ T7371]  <TASK>
[  292.064243][ T7371]  dump_stack_lvl+0xe8/0x150
[  292.064272][ T7371]  sysfs_create_dir_ns+0x271/0x2a0
[  292.064292][ T7371]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  292.064316][ T7371]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  292.064338][ T7371]  ? rt_spin_unlock+0x160/0x200
[  292.064364][ T7371]  kobject_add_internal+0x631/0xd10
[  292.064387][ T7371]  kobject_init_and_add+0x12b/0x1a0
[  292.064410][ T7371]  ? __pfx_kobject_init_and_add+0x10/0x10
[  292.064428][ T7371]  ? __raw_spin_lock_init+0x45/0x100
[  292.064452][ T7371]  ? __init_swait_queue_head+0xa9/0x150
[  292.064478][ T7371]  gfs2_sys_fs_add+0x257/0x480
[  292.064497][ T7371]  ? is_dynamic_key+0x1ac/0x1c0
[  292.064522][ T7371]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  292.064550][ T7371]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  292.064589][ T7371]  gfs2_fill_super+0x141c/0x2220
[  292.064628][ T7371]  ? __pfx_gfs2_fill_super+0x10/0x10
[  292.064649][ T7371]  ? rt_spin_unlock+0x14f/0x200
[  292.064672][ T7371]  ? sb_set_blocksize+0x11b/0x210
[  292.064699][ T7371]  ? setup_bdev_super+0x4c1/0x5b0
[  292.064724][ T7371]  get_tree_bdev_flags+0x431/0x4f0
[  292.064746][ T7371]  ? __pfx_gfs2_fill_super+0x10/0x10
[  292.064769][ T7371]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  292.064789][ T7371]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  292.064821][ T7371]  gfs2_get_tree+0x51/0x1e0
[  292.064847][ T7371]  vfs_get_tree+0x92/0x2a0
[  292.064872][ T7371]  do_new_mount+0x341/0xd30
[  292.064888][ T7371]  ? apparmor_capable+0x126/0x170
[  292.064920][ T7371]  ? __pfx_do_new_mount+0x10/0x10
[  292.064937][ T7371]  ? ns_capable+0x89/0xe0
[  292.064963][ T7371]  ? user_path_at+0xd4/0x160
[  292.064996][ T7371]  ? user_path_at+0xd4/0x160
[  292.065018][ T7371]  __se_sys_mount+0x31d/0x420
[  292.065043][ T7371]  ? __pfx___se_sys_mount+0x10/0x10
[  292.065067][ T7371]  ? __x64_sys_mount+0x20/0xc0
[  292.065085][ T7371]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.065106][ T7371]  do_syscall_64+0x15f/0xf80
[  292.065144][ T7371]  ? trace_irq_disable+0x3b/0x140
[  292.065167][ T7371]  ? clear_bhb_loop+0x40/0x90
[  292.065189][ T7371]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.065205][ T7371] RIP: 0033:0x7fb8cc86b60a
[  292.065223][ T7371] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  292.065239][ T7371] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.065259][ T7371] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  292.065272][ T7371] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  292.065285][ T7371] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  292.065298][ T7371] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  292.065310][ T7371] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  292.065340][ T7371]  </TASK>
[  292.114506][ T7371] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.114528][ T7371] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  292.626550][ T7375] loop1: detected capacity change from 0 to 32768
[  292.632441][ T7375] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.632464][ T7375] CPU: 0 UID: 0 PID: 7375 Comm: syz.1.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  292.632485][ T7375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  292.632496][ T7375] Call Trace:
[  292.632503][ T7375]  <TASK>
[  292.632510][ T7375]  dump_stack_lvl+0xe8/0x150
[  292.632539][ T7375]  sysfs_create_dir_ns+0x271/0x2a0
[  292.632559][ T7375]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  292.632583][ T7375]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  292.632605][ T7375]  ? rt_spin_unlock+0x160/0x200
[  292.632627][ T7375]  kobject_add_internal+0x631/0xd10
[  292.632655][ T7375]  kobject_init_and_add+0x12b/0x1a0
[  292.632677][ T7375]  ? __pfx_kobject_init_and_add+0x10/0x10
[  292.632696][ T7375]  ? __raw_spin_lock_init+0x45/0x100
[  292.632720][ T7375]  ? __init_swait_queue_head+0xa9/0x150
[  292.632747][ T7375]  gfs2_sys_fs_add+0x257/0x480
[  292.632766][ T7375]  ? is_dynamic_key+0x1ac/0x1c0
[  292.632792][ T7375]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  292.632820][ T7375]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  292.632860][ T7375]  gfs2_fill_super+0x141c/0x2220
[  292.632900][ T7375]  ? __pfx_gfs2_fill_super+0x10/0x10
[  292.632929][ T7375]  ? rt_spin_unlock+0x14f/0x200
[  292.632953][ T7375]  ? sb_set_blocksize+0x11b/0x210
[  292.632980][ T7375]  ? setup_bdev_super+0x4c1/0x5b0
[  292.633006][ T7375]  get_tree_bdev_flags+0x431/0x4f0
[  292.633029][ T7375]  ? __pfx_gfs2_fill_super+0x10/0x10
[  292.633052][ T7375]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  292.633072][ T7375]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  292.633101][ T7375]  gfs2_get_tree+0x51/0x1e0
[  292.633124][ T7375]  vfs_get_tree+0x92/0x2a0
[  292.633146][ T7375]  do_new_mount+0x341/0xd30
[  292.633162][ T7375]  ? apparmor_capable+0x126/0x170
[  292.633191][ T7375]  ? __pfx_do_new_mount+0x10/0x10
[  292.633207][ T7375]  ? ns_capable+0x89/0xe0
[  292.633233][ T7375]  ? user_path_at+0xd4/0x160
[  292.633256][ T7375]  ? user_path_at+0xd4/0x160
[  292.633277][ T7375]  __se_sys_mount+0x31d/0x420
[  292.633299][ T7375]  ? __pfx___se_sys_mount+0x10/0x10
[  292.633320][ T7375]  ? __x64_sys_mount+0x20/0xc0
[  292.633334][ T7375]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.633353][ T7375]  do_syscall_64+0x15f/0xf80
[  292.633374][ T7375]  ? trace_irq_disable+0x3b/0x140
[  292.633397][ T7375]  ? clear_bhb_loop+0x40/0x90
[  292.633416][ T7375]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  292.633433][ T7375] RIP: 0033:0x7fb8cc86b60a
[  292.633448][ T7375] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  292.633461][ T7375] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.633479][ T7375] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  292.633492][ T7375] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  292.633504][ T7375] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  292.633515][ T7375] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  292.633526][ T7375] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  292.633553][ T7375]  </TASK>
[  292.633580][ T7375] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.633594][ T7375] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.199267][ T7379] loop1: detected capacity change from 0 to 32768
[  293.203027][ T7379] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.203048][ T7379] CPU: 0 UID: 0 PID: 7379 Comm: syz.1.215 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  293.203069][ T7379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  293.203079][ T7379] Call Trace:
[  293.203086][ T7379]  <TASK>
[  293.203094][ T7379]  dump_stack_lvl+0xe8/0x150
[  293.203123][ T7379]  sysfs_create_dir_ns+0x271/0x2a0
2026/05/01 21:43:52 executed programs: 201
[  293.203143][ T7379]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  293.203167][ T7379]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  293.203189][ T7379]  ? rt_spin_unlock+0x160/0x200
[  293.203211][ T7379]  kobject_add_internal+0x631/0xd10
[  293.203237][ T7379]  kobject_init_and_add+0x12b/0x1a0
[  293.203262][ T7379]  ? __pfx_kobject_init_and_add+0x10/0x10
[  293.203282][ T7379]  ? __raw_spin_lock_init+0x45/0x100
[  293.203306][ T7379]  ? __init_swait_queue_head+0xa9/0x150
[  293.203333][ T7379]  gfs2_sys_fs_add+0x257/0x480
[  293.203352][ T7379]  ? is_dynamic_key+0x1ac/0x1c0
[  293.203377][ T7379]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  293.203406][ T7379]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  293.203445][ T7379]  gfs2_fill_super+0x141c/0x2220
[  293.203485][ T7379]  ? __pfx_gfs2_fill_super+0x10/0x10
[  293.203510][ T7379]  ? rt_spin_unlock+0x14f/0x200
[  293.203534][ T7379]  ? sb_set_blocksize+0x11b/0x210
[  293.203562][ T7379]  ? setup_bdev_super+0x4c1/0x5b0
[  293.203603][ T7379]  get_tree_bdev_flags+0x431/0x4f0
[  293.203626][ T7379]  ? __pfx_gfs2_fill_super+0x10/0x10
[  293.203647][ T7379]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  293.203666][ T7379]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  293.203698][ T7379]  gfs2_get_tree+0x51/0x1e0
[  293.203724][ T7379]  vfs_get_tree+0x92/0x2a0
[  293.203748][ T7379]  do_new_mount+0x341/0xd30
[  293.203765][ T7379]  ? apparmor_capable+0x126/0x170
[  293.203793][ T7379]  ? __pfx_do_new_mount+0x10/0x10
[  293.203811][ T7379]  ? ns_capable+0x89/0xe0
[  293.203844][ T7379]  ? user_path_at+0xd4/0x160
[  293.203868][ T7379]  ? user_path_at+0xd4/0x160
[  293.203888][ T7379]  __se_sys_mount+0x31d/0x420
[  293.203911][ T7379]  ? __pfx___se_sys_mount+0x10/0x10
[  293.203935][ T7379]  ? __x64_sys_mount+0x20/0xc0
[  293.203952][ T7379]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.203970][ T7379]  do_syscall_64+0x15f/0xf80
[  293.203993][ T7379]  ? trace_irq_disable+0x3b/0x140
[  293.204016][ T7379]  ? clear_bhb_loop+0x40/0x90
[  293.204037][ T7379]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.204055][ T7379] RIP: 0033:0x7fb8cc86b60a
[  293.204073][ T7379] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  293.204089][ T7379] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.204109][ T7379] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  293.204122][ T7379] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  293.204134][ T7379] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  293.204146][ T7379] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  293.204158][ T7379] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  293.204188][ T7379]  </TASK>
[  293.204226][ T7379] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.204240][ T7379] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.772807][ T7383] loop1: detected capacity change from 0 to 32768
[  293.797232][ T7383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.797247][ T7383] CPU: 1 UID: 0 PID: 7383 Comm: syz.1.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  293.797260][ T7383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  293.797266][ T7383] Call Trace:
[  293.797271][ T7383]  <TASK>
[  293.797275][ T7383]  dump_stack_lvl+0xe8/0x150
[  293.797294][ T7383]  sysfs_create_dir_ns+0x271/0x2a0
[  293.797307][ T7383]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  293.797321][ T7383]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  293.797333][ T7383]  ? rt_spin_unlock+0x160/0x200
[  293.797346][ T7383]  kobject_add_internal+0x631/0xd10
[  293.797361][ T7383]  kobject_init_and_add+0x12b/0x1a0
[  293.797374][ T7383]  ? __pfx_kobject_init_and_add+0x10/0x10
[  293.797385][ T7383]  ? __raw_spin_lock_init+0x45/0x100
[  293.797399][ T7383]  ? __init_swait_queue_head+0xa9/0x150
[  293.797415][ T7383]  gfs2_sys_fs_add+0x257/0x480
[  293.797426][ T7383]  ? is_dynamic_key+0x1ac/0x1c0
[  293.797442][ T7383]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  293.797457][ T7383]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  293.797479][ T7383]  gfs2_fill_super+0x141c/0x2220
[  293.797501][ T7383]  ? __pfx_gfs2_fill_super+0x10/0x10
[  293.797514][ T7383]  ? rt_spin_unlock+0x14f/0x200
[  293.797527][ T7383]  ? sb_set_blocksize+0x11b/0x210
[  293.797544][ T7383]  ? setup_bdev_super+0x4c1/0x5b0
[  293.797559][ T7383]  get_tree_bdev_flags+0x431/0x4f0
[  293.797573][ T7383]  ? __pfx_gfs2_fill_super+0x10/0x10
[  293.797587][ T7383]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  293.797598][ T7383]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  293.797619][ T7383]  gfs2_get_tree+0x51/0x1e0
[  293.797635][ T7383]  vfs_get_tree+0x92/0x2a0
[  293.797649][ T7383]  do_new_mount+0x341/0xd30
[  293.797659][ T7383]  ? apparmor_capable+0x126/0x170
[  293.797677][ T7383]  ? __pfx_do_new_mount+0x10/0x10
[  293.797687][ T7383]  ? ns_capable+0x89/0xe0
[  293.797701][ T7383]  ? user_path_at+0xd4/0x160
[  293.797718][ T7383]  ? user_path_at+0xd4/0x160
[  293.797731][ T7383]  __se_sys_mount+0x31d/0x420
[  293.797744][ T7383]  ? __pfx___se_sys_mount+0x10/0x10
[  293.797757][ T7383]  ? __x64_sys_mount+0x20/0xc0
[  293.797767][ T7383]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.797778][ T7383]  do_syscall_64+0x15f/0xf80
[  293.797793][ T7383]  ? trace_irq_disable+0x3b/0x140
[  293.797806][ T7383]  ? clear_bhb_loop+0x40/0x90
[  293.797818][ T7383]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  293.797828][ T7383] RIP: 0033:0x7fb8cc86b60a
[  293.797840][ T7383] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  293.797849][ T7383] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.797867][ T7383] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  293.797874][ T7383] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  293.797881][ T7383] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  293.797888][ T7383] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  293.797895][ T7383] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  293.797910][ T7383]  </TASK>
[  293.799054][ T7383] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.799067][ T7383] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.362266][ T7387] loop1: detected capacity change from 0 to 32768
[  294.381539][ T7387] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.381567][ T7387] CPU: 1 UID: 0 PID: 7387 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  294.381588][ T7387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  294.381598][ T7387] Call Trace:
[  294.381605][ T7387]  <TASK>
[  294.381613][ T7387]  dump_stack_lvl+0xe8/0x150
[  294.381642][ T7387]  sysfs_create_dir_ns+0x271/0x2a0
[  294.381662][ T7387]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  294.381685][ T7387]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  294.381707][ T7387]  ? rt_spin_unlock+0x160/0x200
[  294.381729][ T7387]  kobject_add_internal+0x631/0xd10
[  294.381755][ T7387]  kobject_init_and_add+0x12b/0x1a0
[  294.381783][ T7387]  ? __pfx_kobject_init_and_add+0x10/0x10
[  294.381806][ T7387]  ? __raw_spin_lock_init+0x45/0x100
[  294.381831][ T7387]  ? __init_swait_queue_head+0xa9/0x150
[  294.381856][ T7387]  gfs2_sys_fs_add+0x257/0x480
[  294.381876][ T7387]  ? is_dynamic_key+0x1ac/0x1c0
[  294.381901][ T7387]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  294.381927][ T7387]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  294.381968][ T7387]  gfs2_fill_super+0x141c/0x2220
[  294.382006][ T7387]  ? __pfx_gfs2_fill_super+0x10/0x10
[  294.382028][ T7387]  ? rt_spin_unlock+0x14f/0x200
[  294.382053][ T7387]  ? sb_set_blocksize+0x11b/0x210
[  294.382074][ T7387]  ? setup_bdev_super+0x4c1/0x5b0
[  294.382089][ T7387]  get_tree_bdev_flags+0x431/0x4f0
[  294.382102][ T7387]  ? __pfx_gfs2_fill_super+0x10/0x10
[  294.382116][ T7387]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  294.382128][ T7387]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  294.382146][ T7387]  gfs2_get_tree+0x51/0x1e0
[  294.382162][ T7387]  vfs_get_tree+0x92/0x2a0
[  294.382178][ T7387]  do_new_mount+0x341/0xd30
[  294.382188][ T7387]  ? apparmor_capable+0x126/0x170
[  294.382207][ T7387]  ? __pfx_do_new_mount+0x10/0x10
[  294.382216][ T7387]  ? ns_capable+0x89/0xe0
[  294.382230][ T7387]  ? user_path_at+0xd4/0x160
[  294.382244][ T7387]  ? user_path_at+0xd4/0x160
[  294.382257][ T7387]  __se_sys_mount+0x31d/0x420
[  294.382270][ T7387]  ? __pfx___se_sys_mount+0x10/0x10
[  294.382283][ T7387]  ? __x64_sys_mount+0x20/0xc0
[  294.382293][ T7387]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  294.382304][ T7387]  do_syscall_64+0x15f/0xf80
[  294.382318][ T7387]  ? trace_irq_disable+0x3b/0x140
[  294.382332][ T7387]  ? clear_bhb_loop+0x40/0x90
[  294.382344][ T7387]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  294.382354][ T7387] RIP: 0033:0x7fb8cc86b60a
[  294.382365][ T7387] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  294.382374][ T7387] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.382386][ T7387] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  294.382393][ T7387] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  294.382400][ T7387] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  294.382407][ T7387] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  294.382413][ T7387] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  294.382429][ T7387]  </TASK>
[  294.382457][ T7387] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.382465][ T7387] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.941919][ T7391] loop1: detected capacity change from 0 to 32768
[  294.945481][ T7391] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.945502][ T7391] CPU: 1 UID: 0 PID: 7391 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  294.945523][ T7391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  294.945533][ T7391] Call Trace:
[  294.945540][ T7391]  <TASK>
[  294.945547][ T7391]  dump_stack_lvl+0xe8/0x150
[  294.945576][ T7391]  sysfs_create_dir_ns+0x271/0x2a0
[  294.945596][ T7391]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  294.945620][ T7391]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  294.945641][ T7391]  ? rt_spin_unlock+0x160/0x200
[  294.945663][ T7391]  kobject_add_internal+0x631/0xd10
[  294.945691][ T7391]  kobject_init_and_add+0x12b/0x1a0
[  294.945714][ T7391]  ? __pfx_kobject_init_and_add+0x10/0x10
[  294.945733][ T7391]  ? __raw_spin_lock_init+0x45/0x100
[  294.945756][ T7391]  ? __init_swait_queue_head+0xa9/0x150
[  294.945781][ T7391]  gfs2_sys_fs_add+0x257/0x480
[  294.945800][ T7391]  ? is_dynamic_key+0x1ac/0x1c0
[  294.945825][ T7391]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  294.945852][ T7391]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  294.945888][ T7391]  gfs2_fill_super+0x141c/0x2220
[  294.945926][ T7391]  ? __pfx_gfs2_fill_super+0x10/0x10
[  294.945947][ T7391]  ? rt_spin_unlock+0x14f/0x200
[  294.945971][ T7391]  ? sb_set_blocksize+0x11b/0x210
[  294.945995][ T7391]  ? setup_bdev_super+0x4c1/0x5b0
[  294.946020][ T7391]  get_tree_bdev_flags+0x431/0x4f0
[  294.946043][ T7391]  ? __pfx_gfs2_fill_super+0x10/0x10
[  294.946066][ T7391]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  294.946086][ T7391]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  294.946116][ T7391]  gfs2_get_tree+0x51/0x1e0
[  294.946142][ T7391]  vfs_get_tree+0x92/0x2a0
[  294.946166][ T7391]  do_new_mount+0x341/0xd30
[  294.946182][ T7391]  ? apparmor_capable+0x126/0x170
[  294.946211][ T7391]  ? __pfx_do_new_mount+0x10/0x10
[  294.946230][ T7391]  ? ns_capable+0x89/0xe0
[  294.946253][ T7391]  ? user_path_at+0xd4/0x160
[  294.946277][ T7391]  ? user_path_at+0xd4/0x160
[  294.946298][ T7391]  __se_sys_mount+0x31d/0x420
[  294.946321][ T7391]  ? __pfx___se_sys_mount+0x10/0x10
[  294.946344][ T7391]  ? __x64_sys_mount+0x20/0xc0
[  294.946361][ T7391]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  294.946380][ T7391]  do_syscall_64+0x15f/0xf80
[  294.946402][ T7391]  ? trace_irq_disable+0x3b/0x140
[  294.946423][ T7391]  ? clear_bhb_loop+0x40/0x90
[  294.946450][ T7391]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  294.946468][ T7391] RIP: 0033:0x7fb8cc86b60a
[  294.946484][ T7391] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  294.946499][ T7391] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.946519][ T7391] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  294.946532][ T7391] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  294.946544][ T7391] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  294.946556][ T7391] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  294.946568][ T7391] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  294.946596][ T7391]  </TASK>
[  294.946630][ T7391] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.946644][ T7391] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  295.502491][ T7395] loop1: detected capacity change from 0 to 32768
[  295.534779][ T7395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.534802][ T7395] CPU: 1 UID: 0 PID: 7395 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  295.534824][ T7395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  295.534834][ T7395] Call Trace:
[  295.534840][ T7395]  <TASK>
[  295.534848][ T7395]  dump_stack_lvl+0xe8/0x150
[  295.534877][ T7395]  sysfs_create_dir_ns+0x271/0x2a0
[  295.534897][ T7395]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  295.534919][ T7395]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  295.534940][ T7395]  ? rt_spin_unlock+0x160/0x200
[  295.534963][ T7395]  kobject_add_internal+0x631/0xd10
[  295.534988][ T7395]  kobject_init_and_add+0x12b/0x1a0
[  295.535011][ T7395]  ? __pfx_kobject_init_and_add+0x10/0x10
[  295.535031][ T7395]  ? __raw_spin_lock_init+0x45/0x100
[  295.535052][ T7395]  ? __init_swait_queue_head+0xa9/0x150
[  295.535068][ T7395]  gfs2_sys_fs_add+0x257/0x480
[  295.535080][ T7395]  ? is_dynamic_key+0x1ac/0x1c0
[  295.535095][ T7395]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  295.535110][ T7395]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  295.535132][ T7395]  gfs2_fill_super+0x141c/0x2220
[  295.535155][ T7395]  ? __pfx_gfs2_fill_super+0x10/0x10
[  295.535168][ T7395]  ? rt_spin_unlock+0x14f/0x200
[  295.535182][ T7395]  ? sb_set_blocksize+0x11b/0x210
[  295.535198][ T7395]  ? setup_bdev_super+0x4c1/0x5b0
[  295.535213][ T7395]  get_tree_bdev_flags+0x431/0x4f0
[  295.535226][ T7395]  ? __pfx_gfs2_fill_super+0x10/0x10
[  295.535240][ T7395]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  295.535254][ T7395]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  295.535283][ T7395]  gfs2_get_tree+0x51/0x1e0
[  295.535303][ T7395]  vfs_get_tree+0x92/0x2a0
[  295.535317][ T7395]  do_new_mount+0x341/0xd30
[  295.535326][ T7395]  ? apparmor_capable+0x126/0x170
[  295.535345][ T7395]  ? __pfx_do_new_mount+0x10/0x10
[  295.535355][ T7395]  ? ns_capable+0x89/0xe0
[  295.535370][ T7395]  ? user_path_at+0xd4/0x160
[  295.535391][ T7395]  ? user_path_at+0xd4/0x160
[  295.535404][ T7395]  __se_sys_mount+0x31d/0x420
[  295.535417][ T7395]  ? __pfx___se_sys_mount+0x10/0x10
[  295.535430][ T7395]  ? __x64_sys_mount+0x20/0xc0
[  295.535440][ T7395]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  295.535451][ T7395]  do_syscall_64+0x15f/0xf80
[  295.535465][ T7395]  ? trace_irq_disable+0x3b/0x140
[  295.535479][ T7395]  ? clear_bhb_loop+0x40/0x90
[  295.535492][ T7395]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  295.535502][ T7395] RIP: 0033:0x7fb8cc86b60a
[  295.535513][ T7395] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  295.535522][ T7395] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  295.535534][ T7395] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  295.535541][ T7395] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  295.535549][ T7395] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  295.535555][ T7395] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  295.535562][ T7395] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  295.535578][ T7395]  </TASK>
[  295.535656][ T7395] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.535665][ T7395] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.073713][ T7399] loop1: detected capacity change from 0 to 32768
[  296.084064][ T7399] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.084087][ T7399] CPU: 0 UID: 0 PID: 7399 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  296.084108][ T7399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  296.084118][ T7399] Call Trace:
[  296.084125][ T7399]  <TASK>
[  296.084133][ T7399]  dump_stack_lvl+0xe8/0x150
[  296.084162][ T7399]  sysfs_create_dir_ns+0x271/0x2a0
[  296.084182][ T7399]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  296.084206][ T7399]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  296.084227][ T7399]  ? rt_spin_unlock+0x160/0x200
[  296.084251][ T7399]  kobject_add_internal+0x631/0xd10
[  296.084277][ T7399]  kobject_init_and_add+0x12b/0x1a0
[  296.084300][ T7399]  ? __pfx_kobject_init_and_add+0x10/0x10
[  296.084320][ T7399]  ? __raw_spin_lock_init+0x45/0x100
[  296.084345][ T7399]  ? __init_swait_queue_head+0xa9/0x150
[  296.084373][ T7399]  gfs2_sys_fs_add+0x257/0x480
[  296.084400][ T7399]  ? is_dynamic_key+0x1ac/0x1c0
[  296.084425][ T7399]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  296.084453][ T7399]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  296.084492][ T7399]  gfs2_fill_super+0x141c/0x2220
[  296.084533][ T7399]  ? __pfx_gfs2_fill_super+0x10/0x10
[  296.084554][ T7399]  ? rt_spin_unlock+0x14f/0x200
[  296.084578][ T7399]  ? sb_set_blocksize+0x11b/0x210
[  296.084604][ T7399]  ? setup_bdev_super+0x4c1/0x5b0
[  296.084630][ T7399]  get_tree_bdev_flags+0x431/0x4f0
[  296.084653][ T7399]  ? __pfx_gfs2_fill_super+0x10/0x10
[  296.084675][ T7399]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  296.084695][ T7399]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  296.084727][ T7399]  gfs2_get_tree+0x51/0x1e0
[  296.084753][ T7399]  vfs_get_tree+0x92/0x2a0
[  296.084778][ T7399]  do_new_mount+0x341/0xd30
[  296.084794][ T7399]  ? apparmor_capable+0x126/0x170
[  296.084826][ T7399]  ? __pfx_do_new_mount+0x10/0x10
[  296.084844][ T7399]  ? ns_capable+0x89/0xe0
[  296.084869][ T7399]  ? user_path_at+0xd4/0x160
[  296.084893][ T7399]  ? user_path_at+0xd4/0x160
[  296.084915][ T7399]  __se_sys_mount+0x31d/0x420
[  296.084939][ T7399]  ? __pfx___se_sys_mount+0x10/0x10
[  296.084964][ T7399]  ? __x64_sys_mount+0x20/0xc0
[  296.084982][ T7399]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  296.085002][ T7399]  do_syscall_64+0x15f/0xf80
[  296.085026][ T7399]  ? trace_irq_disable+0x3b/0x140
[  296.085050][ T7399]  ? clear_bhb_loop+0x40/0x90
[  296.085072][ T7399]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  296.085090][ T7399] RIP: 0033:0x7fb8cc86b60a
[  296.085108][ T7399] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  296.085123][ T7399] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.085144][ T7399] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  296.085158][ T7399] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  296.085171][ T7399] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  296.085184][ T7399] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  296.085196][ T7399] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  296.085225][ T7399]  </TASK>
[  296.099062][ T7399] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.099083][ T7399] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.619068][ T7403] loop1: detected capacity change from 0 to 32768
[  296.623955][ T7403] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.623978][ T7403] CPU: 1 UID: 0 PID: 7403 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  296.624004][ T7403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  296.624014][ T7403] Call Trace:
[  296.624021][ T7403]  <TASK>
[  296.624029][ T7403]  dump_stack_lvl+0xe8/0x150
[  296.624058][ T7403]  sysfs_create_dir_ns+0x271/0x2a0
[  296.624079][ T7403]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  296.624102][ T7403]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  296.624124][ T7403]  ? rt_spin_unlock+0x160/0x200
[  296.624147][ T7403]  kobject_add_internal+0x631/0xd10
[  296.624174][ T7403]  kobject_init_and_add+0x12b/0x1a0
[  296.624197][ T7403]  ? __pfx_kobject_init_and_add+0x10/0x10
[  296.624217][ T7403]  ? __raw_spin_lock_init+0x45/0x100
[  296.624242][ T7403]  ? __init_swait_queue_head+0xa9/0x150
[  296.624269][ T7403]  gfs2_sys_fs_add+0x257/0x480
[  296.624289][ T7403]  ? is_dynamic_key+0x1ac/0x1c0
[  296.624312][ T7403]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  296.624346][ T7403]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  296.624383][ T7403]  gfs2_fill_super+0x141c/0x2220
[  296.624419][ T7403]  ? __pfx_gfs2_fill_super+0x10/0x10
[  296.624439][ T7403]  ? rt_spin_unlock+0x14f/0x200
[  296.624462][ T7403]  ? sb_set_blocksize+0x11b/0x210
[  296.624487][ T7403]  ? setup_bdev_super+0x4c1/0x5b0
[  296.624511][ T7403]  get_tree_bdev_flags+0x431/0x4f0
[  296.624534][ T7403]  ? __pfx_gfs2_fill_super+0x10/0x10
[  296.624557][ T7403]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  296.624577][ T7403]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  296.624606][ T7403]  gfs2_get_tree+0x51/0x1e0
[  296.624634][ T7403]  vfs_get_tree+0x92/0x2a0
[  296.624659][ T7403]  do_new_mount+0x341/0xd30
[  296.624677][ T7403]  ? apparmor_capable+0x126/0x170
[  296.624708][ T7403]  ? __pfx_do_new_mount+0x10/0x10
[  296.624726][ T7403]  ? ns_capable+0x89/0xe0
[  296.624751][ T7403]  ? user_path_at+0xd4/0x160
[  296.624775][ T7403]  ? user_path_at+0xd4/0x160
[  296.624797][ T7403]  __se_sys_mount+0x31d/0x420
[  296.624820][ T7403]  ? __pfx___se_sys_mount+0x10/0x10
[  296.624845][ T7403]  ? __x64_sys_mount+0x20/0xc0
[  296.624863][ T7403]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  296.624883][ T7403]  do_syscall_64+0x15f/0xf80
[  296.624905][ T7403]  ? trace_irq_disable+0x3b/0x140
[  296.624929][ T7403]  ? clear_bhb_loop+0x40/0x90
[  296.624951][ T7403]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  296.624966][ T7403] RIP: 0033:0x7fb8cc86b60a
[  296.624983][ T7403] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  296.624996][ T7403] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.625016][ T7403] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  296.625029][ T7403] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  296.625041][ T7403] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  296.625052][ T7403] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  296.625063][ T7403] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  296.625093][ T7403]  </TASK>
[  296.634483][ T7403] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.634502][ T7403] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  297.246919][ T7407] loop1: detected capacity change from 0 to 32768
[  297.249558][ T7407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.249579][ T7407] CPU: 0 UID: 0 PID: 7407 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  297.249600][ T7407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  297.249610][ T7407] Call Trace:
[  297.249617][ T7407]  <TASK>
[  297.249625][ T7407]  dump_stack_lvl+0xe8/0x150
[  297.249653][ T7407]  sysfs_create_dir_ns+0x271/0x2a0
[  297.249673][ T7407]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  297.249695][ T7407]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  297.249715][ T7407]  ? rt_spin_unlock+0x160/0x200
[  297.249738][ T7407]  kobject_add_internal+0x631/0xd10
[  297.249763][ T7407]  kobject_init_and_add+0x12b/0x1a0
[  297.249786][ T7407]  ? __pfx_kobject_init_and_add+0x10/0x10
[  297.249806][ T7407]  ? __raw_spin_lock_init+0x45/0x100
[  297.249834][ T7407]  ? __init_swait_queue_head+0xa9/0x150
[  297.249859][ T7407]  gfs2_sys_fs_add+0x257/0x480
[  297.249879][ T7407]  ? is_dynamic_key+0x1ac/0x1c0
[  297.249904][ T7407]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  297.249932][ T7407]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  297.249968][ T7407]  gfs2_fill_super+0x141c/0x2220
[  297.250008][ T7407]  ? __pfx_gfs2_fill_super+0x10/0x10
[  297.250029][ T7407]  ? rt_spin_unlock+0x14f/0x200
[  297.250054][ T7407]  ? sb_set_blocksize+0x11b/0x210
[  297.250080][ T7407]  ? setup_bdev_super+0x4c1/0x5b0
[  297.250104][ T7407]  get_tree_bdev_flags+0x431/0x4f0
[  297.250127][ T7407]  ? __pfx_gfs2_fill_super+0x10/0x10
[  297.250150][ T7407]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  297.250169][ T7407]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  297.250201][ T7407]  gfs2_get_tree+0x51/0x1e0
[  297.250228][ T7407]  vfs_get_tree+0x92/0x2a0
[  297.250254][ T7407]  do_new_mount+0x341/0xd30
[  297.250271][ T7407]  ? apparmor_capable+0x126/0x170
[  297.250309][ T7407]  ? __pfx_do_new_mount+0x10/0x10
[  297.250328][ T7407]  ? ns_capable+0x89/0xe0
[  297.250353][ T7407]  ? user_path_at+0xd4/0x160
[  297.250377][ T7407]  ? user_path_at+0xd4/0x160
[  297.250399][ T7407]  __se_sys_mount+0x31d/0x420
[  297.250423][ T7407]  ? __pfx___se_sys_mount+0x10/0x10
[  297.250447][ T7407]  ? __x64_sys_mount+0x20/0xc0
[  297.250465][ T7407]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  297.250485][ T7407]  do_syscall_64+0x15f/0xf80
[  297.250508][ T7407]  ? trace_irq_disable+0x3b/0x140
[  297.250531][ T7407]  ? clear_bhb_loop+0x40/0x90
[  297.250552][ T7407]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  297.250569][ T7407] RIP: 0033:0x7fb8cc86b60a
[  297.250587][ T7407] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  297.250602][ T7407] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.250621][ T7407] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  297.250634][ T7407] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  297.250647][ T7407] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  297.250659][ T7407] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  297.250671][ T7407] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  297.250699][ T7407]  </TASK>
[  297.250735][ T7407] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  297.250750][ T7407] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  297.818483][ T7411] loop1: detected capacity change from 0 to 32768
[  297.822480][ T7411] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.822503][ T7411] CPU: 0 UID: 0 PID: 7411 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  297.822525][ T7411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  297.822535][ T7411] Call Trace:
[  297.822543][ T7411]  <TASK>
[  297.822551][ T7411]  dump_stack_lvl+0xe8/0x150
[  297.822580][ T7411]  sysfs_create_dir_ns+0x271/0x2a0
[  297.822600][ T7411]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  297.822622][ T7411]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  297.822643][ T7411]  ? rt_spin_unlock+0x160/0x200
[  297.822666][ T7411]  kobject_add_internal+0x631/0xd10
[  297.822693][ T7411]  kobject_init_and_add+0x12b/0x1a0
[  297.822716][ T7411]  ? __pfx_kobject_init_and_add+0x10/0x10
[  297.822736][ T7411]  ? __raw_spin_lock_init+0x45/0x100
[  297.822760][ T7411]  ? __init_swait_queue_head+0xa9/0x150
[  297.822787][ T7411]  gfs2_sys_fs_add+0x257/0x480
[  297.822807][ T7411]  ? is_dynamic_key+0x1ac/0x1c0
[  297.822833][ T7411]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  297.822860][ T7411]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  297.822899][ T7411]  gfs2_fill_super+0x141c/0x2220
[  297.822938][ T7411]  ? __pfx_gfs2_fill_super+0x10/0x10
[  297.822961][ T7411]  ? rt_spin_unlock+0x14f/0x200
[  297.822984][ T7411]  ? sb_set_blocksize+0x11b/0x210
[  297.823011][ T7411]  ? setup_bdev_super+0x4c1/0x5b0
[  297.823036][ T7411]  get_tree_bdev_flags+0x431/0x4f0
[  297.823060][ T7411]  ? __pfx_gfs2_fill_super+0x10/0x10
[  297.823083][ T7411]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  297.823103][ T7411]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  297.823135][ T7411]  gfs2_get_tree+0x51/0x1e0
[  297.823179][ T7411]  vfs_get_tree+0x92/0x2a0
[  297.823204][ T7411]  do_new_mount+0x341/0xd30
[  297.823225][ T7411]  ? apparmor_capable+0x126/0x170
[  297.823255][ T7411]  ? __pfx_do_new_mount+0x10/0x10
[  297.823274][ T7411]  ? ns_capable+0x89/0xe0
[  297.823299][ T7411]  ? user_path_at+0xd4/0x160
[  297.823322][ T7411]  ? user_path_at+0xd4/0x160
[  297.823341][ T7411]  __se_sys_mount+0x31d/0x420
[  297.823363][ T7411]  ? __pfx___se_sys_mount+0x10/0x10
[  297.823385][ T7411]  ? __x64_sys_mount+0x20/0xc0
[  297.823402][ T7411]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  297.823426][ T7411]  do_syscall_64+0x15f/0xf80
[  297.823450][ T7411]  ? trace_irq_disable+0x3b/0x140
[  297.823474][ T7411]  ? clear_bhb_loop+0x40/0x90
[  297.823494][ T7411]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  297.823511][ T7411] RIP: 0033:0x7fb8cc86b60a
[  297.823527][ T7411] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  297.823541][ T7411] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.823560][ T7411] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  297.823573][ T7411] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  297.823584][ T7411] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  297.823596][ T7411] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  297.823608][ T7411] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  297.823634][ T7411]  </TASK>
[  297.823668][ T7411] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  297.823682][ T7411] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.414224][ T7415] loop1: detected capacity change from 0 to 32768
[  298.436458][ T7415] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  298.436482][ T7415] CPU: 0 UID: 0 PID: 7415 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  298.436503][ T7415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  298.436513][ T7415] Call Trace:
[  298.436521][ T7415]  <TASK>
[  298.436529][ T7415]  dump_stack_lvl+0xe8/0x150
[  298.436558][ T7415]  sysfs_create_dir_ns+0x271/0x2a0
[  298.436578][ T7415]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  298.436601][ T7415]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  298.436622][ T7415]  ? rt_spin_unlock+0x160/0x200
[  298.436645][ T7415]  kobject_add_internal+0x631/0xd10
[  298.436672][ T7415]  kobject_init_and_add+0x12b/0x1a0
[  298.436696][ T7415]  ? __pfx_kobject_init_and_add+0x10/0x10
[  298.436716][ T7415]  ? __raw_spin_lock_init+0x45/0x100
[  298.436739][ T7415]  ? __init_swait_queue_head+0xa9/0x150
[  298.436765][ T7415]  gfs2_sys_fs_add+0x257/0x480
[  298.436786][ T7415]  ? is_dynamic_key+0x1ac/0x1c0
[  298.436810][ T7415]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  298.436839][ T7415]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
2026/05/01 21:43:57 executed programs: 210
[  298.436877][ T7415]  gfs2_fill_super+0x141c/0x2220
[  298.436918][ T7415]  ? __pfx_gfs2_fill_super+0x10/0x10
[  298.436939][ T7415]  ? rt_spin_unlock+0x14f/0x200
[  298.436962][ T7415]  ? sb_set_blocksize+0x11b/0x210
[  298.436987][ T7415]  ? setup_bdev_super+0x4c1/0x5b0
[  298.437012][ T7415]  get_tree_bdev_flags+0x431/0x4f0
[  298.437035][ T7415]  ? __pfx_gfs2_fill_super+0x10/0x10
[  298.437061][ T7415]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  298.437081][ T7415]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  298.437112][ T7415]  gfs2_get_tree+0x51/0x1e0
[  298.437139][ T7415]  vfs_get_tree+0x92/0x2a0
[  298.437163][ T7415]  do_new_mount+0x341/0xd30
[  298.437179][ T7415]  ? apparmor_capable+0x126/0x170
[  298.437210][ T7415]  ? __pfx_do_new_mount+0x10/0x10
[  298.437227][ T7415]  ? ns_capable+0x89/0xe0
[  298.437251][ T7415]  ? user_path_at+0xd4/0x160
[  298.437276][ T7415]  ? user_path_at+0xd4/0x160
[  298.437298][ T7415]  __se_sys_mount+0x31d/0x420
[  298.437322][ T7415]  ? __pfx___se_sys_mount+0x10/0x10
[  298.437345][ T7415]  ? __x64_sys_mount+0x20/0xc0
[  298.437363][ T7415]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  298.437383][ T7415]  do_syscall_64+0x15f/0xf80
[  298.437407][ T7415]  ? trace_irq_disable+0x3b/0x140
[  298.437437][ T7415]  ? clear_bhb_loop+0x40/0x90
[  298.437458][ T7415]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  298.437475][ T7415] RIP: 0033:0x7fb8cc86b60a
[  298.437493][ T7415] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  298.437509][ T7415] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  298.437529][ T7415] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  298.437543][ T7415] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  298.437556][ T7415] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  298.437569][ T7415] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  298.437581][ T7415] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  298.437610][ T7415]  </TASK>
[  298.437654][ T7415] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  298.437669][ T7415] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.794598][   T62] Bluetooth: hci1: command 0x0406 tx timeout
[  298.986854][ T7419] loop1: detected capacity change from 0 to 32768
[  299.005642][ T7419] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  299.005666][ T7419] CPU: 0 UID: 0 PID: 7419 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  299.005686][ T7419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  299.005697][ T7419] Call Trace:
[  299.005705][ T7419]  <TASK>
[  299.005713][ T7419]  dump_stack_lvl+0xe8/0x150
[  299.005741][ T7419]  sysfs_create_dir_ns+0x271/0x2a0
[  299.005761][ T7419]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  299.005784][ T7419]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  299.005805][ T7419]  ? rt_spin_unlock+0x160/0x200
[  299.005828][ T7419]  kobject_add_internal+0x631/0xd10
[  299.005854][ T7419]  kobject_init_and_add+0x12b/0x1a0
[  299.005877][ T7419]  ? __pfx_kobject_init_and_add+0x10/0x10
[  299.005897][ T7419]  ? __raw_spin_lock_init+0x45/0x100
[  299.005922][ T7419]  ? __init_swait_queue_head+0xa9/0x150
[  299.005949][ T7419]  gfs2_sys_fs_add+0x257/0x480
[  299.005969][ T7419]  ? is_dynamic_key+0x1ac/0x1c0
[  299.005994][ T7419]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  299.006022][ T7419]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  299.006150][ T7419]  gfs2_fill_super+0x141c/0x2220
[  299.006191][ T7419]  ? __pfx_gfs2_fill_super+0x10/0x10
[  299.006213][ T7419]  ? rt_spin_unlock+0x14f/0x200
[  299.006236][ T7419]  ? sb_set_blocksize+0x11b/0x210
[  299.006260][ T7419]  ? setup_bdev_super+0x4c1/0x5b0
[  299.006283][ T7419]  get_tree_bdev_flags+0x431/0x4f0
[  299.006303][ T7419]  ? __pfx_gfs2_fill_super+0x10/0x10
[  299.006325][ T7419]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  299.006343][ T7419]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  299.006374][ T7419]  gfs2_get_tree+0x51/0x1e0
[  299.006402][ T7419]  vfs_get_tree+0x92/0x2a0
[  299.006424][ T7419]  do_new_mount+0x341/0xd30
[  299.006439][ T7419]  ? apparmor_capable+0x126/0x170
[  299.006467][ T7419]  ? __pfx_do_new_mount+0x10/0x10
[  299.006483][ T7419]  ? ns_capable+0x89/0xe0
[  299.006506][ T7419]  ? user_path_at+0xd4/0x160
[  299.006529][ T7419]  ? user_path_at+0xd4/0x160
[  299.006550][ T7419]  __se_sys_mount+0x31d/0x420
[  299.006572][ T7419]  ? __pfx___se_sys_mount+0x10/0x10
[  299.006595][ T7419]  ? __x64_sys_mount+0x20/0xc0
[  299.006610][ T7419]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  299.006626][ T7419]  do_syscall_64+0x15f/0xf80
[  299.006648][ T7419]  ? trace_irq_disable+0x3b/0x140
[  299.006673][ T7419]  ? clear_bhb_loop+0x40/0x90
[  299.006694][ T7419]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  299.006710][ T7419] RIP: 0033:0x7fb8cc86b60a
[  299.006727][ T7419] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  299.006742][ T7419] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  299.006761][ T7419] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  299.006773][ T7419] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  299.006785][ T7419] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  299.006797][ T7419] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  299.006807][ T7419] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  299.006835][ T7419]  </TASK>
[  299.006895][ T7419] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  299.006910][ T7419] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  299.575913][ T7423] loop1: detected capacity change from 0 to 32768
[  299.580678][ T7423] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  299.580700][ T7423] CPU: 0 UID: 0 PID: 7423 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  299.580720][ T7423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  299.580730][ T7423] Call Trace:
[  299.580737][ T7423]  <TASK>
[  299.580745][ T7423]  dump_stack_lvl+0xe8/0x150
[  299.580773][ T7423]  sysfs_create_dir_ns+0x271/0x2a0
[  299.580792][ T7423]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  299.580816][ T7423]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  299.580838][ T7423]  ? rt_spin_unlock+0x160/0x200
[  299.580861][ T7423]  kobject_add_internal+0x631/0xd10
[  299.580888][ T7423]  kobject_init_and_add+0x12b/0x1a0
[  299.580912][ T7423]  ? __pfx_kobject_init_and_add+0x10/0x10
[  299.580932][ T7423]  ? __raw_spin_lock_init+0x45/0x100
[  299.580956][ T7423]  ? __init_swait_queue_head+0xa9/0x150
[  299.580983][ T7423]  gfs2_sys_fs_add+0x257/0x480
[  299.581002][ T7423]  ? is_dynamic_key+0x1ac/0x1c0
[  299.581032][ T7423]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  299.581061][ T7423]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  299.581095][ T7423]  gfs2_fill_super+0x141c/0x2220
[  299.581134][ T7423]  ? __pfx_gfs2_fill_super+0x10/0x10
[  299.581156][ T7423]  ? rt_spin_unlock+0x14f/0x200
[  299.581181][ T7423]  ? sb_set_blocksize+0x11b/0x210
[  299.581209][ T7423]  ? setup_bdev_super+0x4c1/0x5b0
[  299.581241][ T7423]  get_tree_bdev_flags+0x431/0x4f0
[  299.581262][ T7423]  ? __pfx_gfs2_fill_super+0x10/0x10
[  299.581282][ T7423]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  299.581301][ T7423]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  299.581328][ T7423]  gfs2_get_tree+0x51/0x1e0
[  299.581353][ T7423]  vfs_get_tree+0x92/0x2a0
[  299.581376][ T7423]  do_new_mount+0x341/0xd30
[  299.581394][ T7423]  ? apparmor_capable+0x126/0x170
[  299.581422][ T7423]  ? __pfx_do_new_mount+0x10/0x10
[  299.581439][ T7423]  ? ns_capable+0x89/0xe0
[  299.581463][ T7423]  ? user_path_at+0xd4/0x160
[  299.581486][ T7423]  ? user_path_at+0xd4/0x160
[  299.581508][ T7423]  __se_sys_mount+0x31d/0x420
[  299.581531][ T7423]  ? __pfx___se_sys_mount+0x10/0x10
[  299.581555][ T7423]  ? __x64_sys_mount+0x20/0xc0
[  299.581571][ T7423]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  299.581591][ T7423]  do_syscall_64+0x15f/0xf80
[  299.581614][ T7423]  ? trace_irq_disable+0x3b/0x140
[  299.581635][ T7423]  ? clear_bhb_loop+0x40/0x90
[  299.581656][ T7423]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  299.581673][ T7423] RIP: 0033:0x7fb8cc86b60a
[  299.581690][ T7423] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  299.581704][ T7423] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  299.581724][ T7423] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  299.581738][ T7423] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  299.581751][ T7423] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  299.581763][ T7423] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  299.581775][ T7423] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  299.581804][ T7423]  </TASK>
[  299.581889][ T7423] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  299.581904][ T7423] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  300.127296][ T7427] loop1: detected capacity change from 0 to 32768
[  300.140492][ T7427] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  300.140514][ T7427] CPU: 1 UID: 0 PID: 7427 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  300.140534][ T7427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  300.140544][ T7427] Call Trace:
[  300.140552][ T7427]  <TASK>
[  300.140559][ T7427]  dump_stack_lvl+0xe8/0x150
[  300.140587][ T7427]  sysfs_create_dir_ns+0x271/0x2a0
[  300.140607][ T7427]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  300.140630][ T7427]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  300.140651][ T7427]  ? rt_spin_unlock+0x160/0x200
[  300.140673][ T7427]  kobject_add_internal+0x631/0xd10
[  300.140698][ T7427]  kobject_init_and_add+0x12b/0x1a0
[  300.140722][ T7427]  ? __pfx_kobject_init_and_add+0x10/0x10
[  300.140741][ T7427]  ? __raw_spin_lock_init+0x45/0x100
[  300.140765][ T7427]  ? __init_swait_queue_head+0xa9/0x150
[  300.140790][ T7427]  gfs2_sys_fs_add+0x257/0x480
[  300.140809][ T7427]  ? is_dynamic_key+0x1ac/0x1c0
[  300.140832][ T7427]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  300.140860][ T7427]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  300.140895][ T7427]  gfs2_fill_super+0x141c/0x2220
[  300.140933][ T7427]  ? __pfx_gfs2_fill_super+0x10/0x10
[  300.140954][ T7427]  ? rt_spin_unlock+0x14f/0x200
[  300.140977][ T7427]  ? sb_set_blocksize+0x11b/0x210
[  300.141002][ T7427]  ? setup_bdev_super+0x4c1/0x5b0
[  300.141027][ T7427]  get_tree_bdev_flags+0x431/0x4f0
[  300.141049][ T7427]  ? __pfx_gfs2_fill_super+0x10/0x10
[  300.141072][ T7427]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  300.141091][ T7427]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  300.141122][ T7427]  gfs2_get_tree+0x51/0x1e0
[  300.141146][ T7427]  vfs_get_tree+0x92/0x2a0
[  300.141169][ T7427]  do_new_mount+0x341/0xd30
[  300.141185][ T7427]  ? apparmor_capable+0x126/0x170
[  300.141222][ T7427]  ? __pfx_do_new_mount+0x10/0x10
[  300.141239][ T7427]  ? ns_capable+0x89/0xe0
[  300.141263][ T7427]  ? user_path_at+0xd4/0x160
[  300.141287][ T7427]  ? user_path_at+0xd4/0x160
[  300.141307][ T7427]  __se_sys_mount+0x31d/0x420
[  300.141331][ T7427]  ? __pfx___se_sys_mount+0x10/0x10
[  300.141354][ T7427]  ? __x64_sys_mount+0x20/0xc0
[  300.141371][ T7427]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  300.141391][ T7427]  do_syscall_64+0x15f/0xf80
[  300.141414][ T7427]  ? trace_irq_disable+0x3b/0x140
[  300.141436][ T7427]  ? clear_bhb_loop+0x40/0x90
[  300.141457][ T7427]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  300.141474][ T7427] RIP: 0033:0x7fb8cc86b60a
[  300.141491][ T7427] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  300.141512][ T7427] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  300.141532][ T7427] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  300.141545][ T7427] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  300.141558][ T7427] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  300.141569][ T7427] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  300.141581][ T7427] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  300.141613][ T7427]  </TASK>
[  300.141648][ T7427] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  300.141663][ T7427] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  300.701098][ T7431] loop1: detected capacity change from 0 to 32768
[  300.715347][ T7431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  300.715370][ T7431] CPU: 1 UID: 0 PID: 7431 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  300.715389][ T7431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  300.715400][ T7431] Call Trace:
[  300.715407][ T7431]  <TASK>
[  300.715415][ T7431]  dump_stack_lvl+0xe8/0x150
[  300.715444][ T7431]  sysfs_create_dir_ns+0x271/0x2a0
[  300.715465][ T7431]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  300.715489][ T7431]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  300.715511][ T7431]  ? rt_spin_unlock+0x160/0x200
[  300.715534][ T7431]  kobject_add_internal+0x631/0xd10
[  300.715560][ T7431]  kobject_init_and_add+0x12b/0x1a0
[  300.715584][ T7431]  ? __pfx_kobject_init_and_add+0x10/0x10
[  300.715605][ T7431]  ? __raw_spin_lock_init+0x45/0x100
[  300.715629][ T7431]  ? __init_swait_queue_head+0xa9/0x150
[  300.715655][ T7431]  gfs2_sys_fs_add+0x257/0x480
[  300.715678][ T7431]  ? is_dynamic_key+0x1ac/0x1c0
[  300.715704][ T7431]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  300.715730][ T7431]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  300.715769][ T7431]  gfs2_fill_super+0x141c/0x2220
[  300.715810][ T7431]  ? __pfx_gfs2_fill_super+0x10/0x10
[  300.715831][ T7431]  ? rt_spin_unlock+0x14f/0x200
[  300.715856][ T7431]  ? sb_set_blocksize+0x11b/0x210
[  300.715894][ T7431]  ? setup_bdev_super+0x4c1/0x5b0
[  300.715919][ T7431]  get_tree_bdev_flags+0x431/0x4f0
[  300.715942][ T7431]  ? __pfx_gfs2_fill_super+0x10/0x10
[  300.715966][ T7431]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  300.715985][ T7431]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  300.716018][ T7431]  gfs2_get_tree+0x51/0x1e0
[  300.716043][ T7431]  vfs_get_tree+0x92/0x2a0
[  300.716067][ T7431]  do_new_mount+0x341/0xd30
[  300.716084][ T7431]  ? apparmor_capable+0x126/0x170
[  300.716113][ T7431]  ? __pfx_do_new_mount+0x10/0x10
[  300.716131][ T7431]  ? ns_capable+0x89/0xe0
[  300.716155][ T7431]  ? user_path_at+0xd4/0x160
[  300.716180][ T7431]  ? user_path_at+0xd4/0x160
[  300.716202][ T7431]  __se_sys_mount+0x31d/0x420
[  300.716226][ T7431]  ? __pfx___se_sys_mount+0x10/0x10
[  300.716251][ T7431]  ? __x64_sys_mount+0x20/0xc0
[  300.716269][ T7431]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  300.716288][ T7431]  do_syscall_64+0x15f/0xf80
[  300.716312][ T7431]  ? trace_irq_disable+0x3b/0x140
[  300.716334][ T7431]  ? clear_bhb_loop+0x40/0x90
[  300.716355][ T7431]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  300.716372][ T7431] RIP: 0033:0x7fb8cc86b60a
[  300.716389][ T7431] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  300.716402][ T7431] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  300.716423][ T7431] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  300.716436][ T7431] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  300.716449][ T7431] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  300.716462][ T7431] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  300.716474][ T7431] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  300.716504][ T7431]  </TASK>
[  300.716541][ T7431] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  300.718610][ T7431] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  301.308661][ T7435] loop1: detected capacity change from 0 to 32768
[  301.323677][ T7435] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  301.323699][ T7435] CPU: 0 UID: 0 PID: 7435 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  301.323719][ T7435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  301.323729][ T7435] Call Trace:
[  301.323737][ T7435]  <TASK>
[  301.323744][ T7435]  dump_stack_lvl+0xe8/0x150
[  301.323773][ T7435]  sysfs_create_dir_ns+0x271/0x2a0
[  301.323794][ T7435]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  301.323818][ T7435]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  301.323839][ T7435]  ? rt_spin_unlock+0x160/0x200
[  301.323861][ T7435]  kobject_add_internal+0x631/0xd10
[  301.323887][ T7435]  kobject_init_and_add+0x12b/0x1a0
[  301.323910][ T7435]  ? __pfx_kobject_init_and_add+0x10/0x10
[  301.323931][ T7435]  ? __raw_spin_lock_init+0x45/0x100
[  301.323955][ T7435]  ? __init_swait_queue_head+0xa9/0x150
[  301.323980][ T7435]  gfs2_sys_fs_add+0x257/0x480
[  301.323998][ T7435]  ? is_dynamic_key+0x1ac/0x1c0
[  301.324020][ T7435]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  301.324047][ T7435]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  301.324082][ T7435]  gfs2_fill_super+0x141c/0x2220
[  301.324129][ T7435]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.324147][ T7435]  ? rt_spin_unlock+0x14f/0x200
[  301.324170][ T7435]  ? sb_set_blocksize+0x11b/0x210
[  301.324194][ T7435]  ? setup_bdev_super+0x4c1/0x5b0
[  301.324240][ T7435]  get_tree_bdev_flags+0x431/0x4f0
[  301.324263][ T7435]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.324284][ T7435]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  301.324302][ T7435]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  301.324334][ T7435]  gfs2_get_tree+0x51/0x1e0
[  301.324363][ T7435]  vfs_get_tree+0x92/0x2a0
[  301.324386][ T7435]  do_new_mount+0x341/0xd30
[  301.324401][ T7435]  ? apparmor_capable+0x126/0x170
[  301.324431][ T7435]  ? __pfx_do_new_mount+0x10/0x10
[  301.324447][ T7435]  ? ns_capable+0x89/0xe0
[  301.324471][ T7435]  ? user_path_at+0xd4/0x160
[  301.324495][ T7435]  ? user_path_at+0xd4/0x160
[  301.324518][ T7435]  __se_sys_mount+0x31d/0x420
[  301.324542][ T7435]  ? __pfx___se_sys_mount+0x10/0x10
[  301.324567][ T7435]  ? __x64_sys_mount+0x20/0xc0
[  301.324585][ T7435]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.324605][ T7435]  do_syscall_64+0x15f/0xf80
[  301.324628][ T7435]  ? trace_irq_disable+0x3b/0x140
[  301.324651][ T7435]  ? clear_bhb_loop+0x40/0x90
[  301.324672][ T7435]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.324689][ T7435] RIP: 0033:0x7fb8cc86b60a
[  301.324707][ T7435] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  301.324722][ T7435] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  301.324741][ T7435] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  301.324754][ T7435] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  301.324767][ T7435] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  301.324779][ T7435] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  301.324789][ T7435] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  301.324816][ T7435]  </TASK>
[  301.405934][ T7435] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  301.406035][ T7435] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  301.921519][ T7439] loop1: detected capacity change from 0 to 32768
[  301.946163][ T7439] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  301.946186][ T7439] CPU: 0 UID: 0 PID: 7439 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  301.946206][ T7439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  301.946216][ T7439] Call Trace:
[  301.946224][ T7439]  <TASK>
[  301.946232][ T7439]  dump_stack_lvl+0xe8/0x150
[  301.946261][ T7439]  sysfs_create_dir_ns+0x271/0x2a0
[  301.946281][ T7439]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  301.946303][ T7439]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  301.946325][ T7439]  ? rt_spin_unlock+0x160/0x200
[  301.946348][ T7439]  kobject_add_internal+0x631/0xd10
[  301.946373][ T7439]  kobject_init_and_add+0x12b/0x1a0
[  301.946397][ T7439]  ? __pfx_kobject_init_and_add+0x10/0x10
[  301.946416][ T7439]  ? __raw_spin_lock_init+0x45/0x100
[  301.946440][ T7439]  ? __init_swait_queue_head+0xa9/0x150
[  301.946468][ T7439]  gfs2_sys_fs_add+0x257/0x480
[  301.946488][ T7439]  ? is_dynamic_key+0x1ac/0x1c0
[  301.946512][ T7439]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  301.946539][ T7439]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  301.946577][ T7439]  gfs2_fill_super+0x141c/0x2220
[  301.946617][ T7439]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.946643][ T7439]  ? rt_spin_unlock+0x14f/0x200
[  301.946666][ T7439]  ? sb_set_blocksize+0x11b/0x210
[  301.946693][ T7439]  ? setup_bdev_super+0x4c1/0x5b0
[  301.946719][ T7439]  get_tree_bdev_flags+0x431/0x4f0
[  301.946742][ T7439]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.946766][ T7439]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  301.946786][ T7439]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  301.946825][ T7439]  gfs2_get_tree+0x51/0x1e0
[  301.946853][ T7439]  vfs_get_tree+0x92/0x2a0
[  301.946878][ T7439]  do_new_mount+0x341/0xd30
[  301.946894][ T7439]  ? apparmor_capable+0x126/0x170
[  301.946924][ T7439]  ? __pfx_do_new_mount+0x10/0x10
[  301.946942][ T7439]  ? ns_capable+0x89/0xe0
[  301.946967][ T7439]  ? user_path_at+0xd4/0x160
[  301.946991][ T7439]  ? user_path_at+0xd4/0x160
[  301.947012][ T7439]  __se_sys_mount+0x31d/0x420
[  301.947036][ T7439]  ? __pfx___se_sys_mount+0x10/0x10
[  301.947059][ T7439]  ? __x64_sys_mount+0x20/0xc0
[  301.947077][ T7439]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.947097][ T7439]  do_syscall_64+0x15f/0xf80
[  301.947121][ T7439]  ? trace_irq_disable+0x3b/0x140
[  301.947144][ T7439]  ? clear_bhb_loop+0x40/0x90
[  301.947166][ T7439]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.947184][ T7439] RIP: 0033:0x7fb8cc86b60a
[  301.947202][ T7439] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  301.947217][ T7439] RSP: 002b:00007fb8cbecde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  301.947237][ T7439] RAX: ffffffffffffffda RBX: 00007fb8cbecdee0 RCX: 00007fb8cc86b60a
[  301.947250][ T7439] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fb8cbecdea0
[  301.947263][ T7439] RBP: 000020000001f680 R08: 00007fb8cbecdee0 R09: 0000000000000094
[  301.947275][ T7439] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  301.947287][ T7439] R13: 00007fb8cbecdea0 R14: 000000000001f790 R15: 00002000000001c0
[  301.947317][ T7439]  </TASK>
[  301.947354][ T7439] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  301.947369][ T7439] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  302.474598][   T39] INFO: task kworker/1:3:4938 blocked in I/O wait for more than 143 seconds.
[  302.474623][   T39]       Not tainted syzkaller #0
[  302.474635][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  302.474644][   T39] task:kworker/1:3     state:D stack:22208 pid:4938  tgid:4938  ppid:2      task_flags:0x4208060 flags:0x00080000
[  302.474690][   T39] Workqueue: gfs2_recovery gfs2_recover_func
[  302.474720][   T39] Call Trace:
[  302.474733][   T39]  <TASK>
[  302.474745][   T39]  __schedule+0x169e/0x54f0
[  302.474775][   T39]  ? __lock_acquire+0x6b5/0x2d10
[  302.474809][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  302.474845][   T39]  ? __pfx___schedule+0x10/0x10
[  302.474877][   T39]  ? schedule+0x90/0x360
[  302.474904][   T39]  schedule+0x164/0x360
[  302.474929][   T39]  io_schedule+0x7f/0xd0
[  302.474956][   T39]  folio_wait_bit_common+0x6dd/0xbc0
[  302.475003][   T39]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  302.475029][   T39]  ? __pfx_wake_page_function+0x10/0x10
[  302.475050][   T39]  ? __get_log_header+0x2a3/0x630
[  302.475080][   T39]  ? __filemap_get_folio_mpol+0x6fa/0xa50
[  302.475110][   T39]  gfs2_jhead_process_page+0x175/0x670
[  302.475140][   T39]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  302.475177][   T39]  gfs2_find_jhead+0xbd2/0xd30
[  302.475220][   T39]  gfs2_recover_func+0x6cf/0x1f60
[  302.475270][   T39]  ? __pfx_gfs2_recover_func+0x10/0x10
[  302.475296][   T39]  ? __lock_acquire+0x6b5/0x2d10
[  302.475321][   T39]  ? look_up_lock_class+0x57/0x110
[  302.475346][   T39]  ? register_lock_class+0x31/0x2e0
[  302.475374][   T39]  ? __lock_acquire+0x6b5/0x2d10
[  302.475412][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  302.475443][   T39]  ? process_one_work+0x8b7/0x1710
[  302.475480][   T39]  ? process_one_work+0x8b7/0x1710
[  302.475500][   T39]  process_one_work+0x9a3/0x1710
[  302.475540][   T39]  ? __pfx_process_one_work+0x10/0x10
[  302.475560][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  302.475598][   T39]  worker_thread+0xba8/0x11e0
[  302.475630][   T39]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  302.475657][   T39]  ? __kthread_parkme+0x7a/0x1f0
[  302.475680][   T39]  ? __kthread_parkme+0x19c/0x1f0
[  302.475709][   T39]  kthread+0x388/0x470
[  302.475735][   T39]  ? __pfx_worker_thread+0x10/0x10
[  302.475754][   T39]  ? __pfx_kthread+0x10/0x10
[  302.475781][   T39]  ret_from_fork+0x514/0xb70
[  302.475806][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  302.475829][   T39]  ? __switch_to+0xc79/0x1410
[  302.475897][   T39]  ? __pfx_kthread+0x10/0x10
[  302.475925][   T39]  ret_from_fork_asm+0x1a/0x30
[  302.475964][   T39]  </TASK>
[  302.476000][   T39] INFO: task syz.0.18:6542 blocked for more than 143 seconds.
[  302.476015][   T39]       Not tainted syzkaller #0
[  302.476025][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  302.476034][   T39] task:syz.0.18        state:D stack:24512 pid:6542  tgid:6541  ppid:6356   task_flags:0x400140 flags:0x00080002
[  302.476077][   T39] Call Trace:
[  302.476084][   T39]  <TASK>
[  302.476095][   T39]  __schedule+0x169e/0x54f0
[  302.476122][   T39]  ? __lock_acquire+0x6b5/0x2d10
[  302.476154][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  302.476191][   T39]  ? __pfx___schedule+0x10/0x10
[  302.476223][   T39]  ? schedule+0x90/0x360
[  302.476249][   T39]  schedule+0x164/0x360
[  302.476275][   T39]  bit_wait+0x11/0xd0
[  302.476300][   T39]  __wait_on_bit+0xb9/0x300
[  302.476326][   T39]  ? __pfx_bit_wait+0x10/0x10
[  302.476353][   T39]  out_of_line_wait_on_bit+0x13b/0x190
[  302.476380][   T39]  ? __pfx_bit_wait+0x10/0x10
[  302.476404][   T39]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  302.476432][   T39]  ? __pfx_wake_bit_function+0x10/0x10
[  302.476466][   T39]  gfs2_recover_journal+0xda/0x140
[  302.476492][   T39]  init_journal+0x16ad/0x2280
[  302.476528][   T39]  ? init_inodes+0xdb/0x320
[  302.476557][   T39]  ? __pfx_init_journal+0x10/0x10
[  302.476594][   T39]  ? snprintf+0xe8/0x140
[  302.476617][   T39]  ? init_inodes+0xdb/0x320
[  302.476641][   T39]  ? __pfx_snprintf+0x10/0x10
[  302.476663][   T39]  ? gfs2_glock_nq_num+0x13d/0x170
[  302.476685][   T39]  init_inodes+0xdb/0x320
[  302.476713][   T39]  gfs2_fill_super+0x1a92/0x2220
[  302.476751][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  302.476774][   T39]  ? rt_spin_unlock+0x14f/0x200
[  302.476797][   T39]  ? init_locking+0xb8/0x210
[  302.476820][   T39]  ? sb_set_blocksize+0x11b/0x210
[  302.476847][   T39]  ? setup_bdev_super+0x4c1/0x5b0
[  302.476874][   T39]  get_tree_bdev_flags+0x431/0x4f0
[  302.476898][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  302.476923][   T39]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  302.476944][   T39]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  302.476977][   T39]  gfs2_get_tree+0x51/0x1e0
[  302.477009][   T39]  vfs_get_tree+0x92/0x2a0
[  302.477035][   T39]  do_new_mount+0x341/0xd30
[  302.477053][   T39]  ? apparmor_capable+0x126/0x170
[  302.477085][   T39]  ? __pfx_do_new_mount+0x10/0x10
[  302.477104][   T39]  ? ns_capable+0x89/0xe0
[  302.477130][   T39]  ? user_path_at+0xd4/0x160
[  302.477154][   T39]  ? user_path_at+0xd4/0x160
[  302.477177][   T39]  __se_sys_mount+0x31d/0x420
[  302.477203][   T39]  ? __pfx___se_sys_mount+0x10/0x10
[  302.477228][   T39]  ? __x64_sys_mount+0x20/0xc0
[  302.477246][   T39]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.477267][   T39]  do_syscall_64+0x15f/0xf80
[  302.477314][   T39]  ? trace_irq_disable+0x3b/0x140
[  302.477340][   T39]  ? clear_bhb_loop+0x40/0x90
[  302.477363][   T39]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.477381][   T39] RIP: 0033:0x7efe35f7b60a
[  302.477399][   T39] RSP: 002b:00007efe355dde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  302.477418][   T39] RAX: ffffffffffffffda RBX: 00007efe355ddee0 RCX: 00007efe35f7b60a
[  302.477432][   T39] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007efe355ddea0
[  302.477446][   T39] RBP: 000020000001f680 R08: 00007efe355ddee0 R09: 0000000000000094
[  302.477459][   T39] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  302.477472][   T39] R13: 00007efe355ddea0 R14: 000000000001f790 R15: 00002000000001c0
[  302.477501][   T39]  </TASK>
[  302.477527][   T39] 
[  302.477527][   T39] Showing all locks held in the system:
[  302.477540][   T39] 1 lock held by khungtaskd/39:
[  302.477551][   T39]  #0: ffffffff8dfc8180 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  302.477627][   T39] 2 locks held by kworker/1:3/4938:
[  302.477645][   T39]  #0: ffff88801ef04938 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x890/0x1710
[  302.477691][   T39]  #1: ffffc9001133fc40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x1710
[  302.477737][   T39] 2 locks held by getty/5366:
[  302.477747][   T39]  #0: ffff888035c530a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  302.477799][   T39]  #1: ffffc90003cb62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[  302.477850][   T39] 1 lock held by syz.0.18/6542:
[  302.477860][   T39]  #0: ffff8880350900d0 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xac0
[  302.477914][   T39] 2 locks held by syz.1.231/7443:
[  302.477925][   T39]  #0: ffff88801b6b2480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  302.477973][   T39]  #1: ffff88805bb9ce38 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  302.478033][   T39] 
[  302.478038][   T39] =============================================
[  302.478038][   T39] 
[  302.478051][   T39] NMI backtrace for cpu 1
[  302.478064][   T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  302.478084][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.478096][   T39] Call Trace:
[  302.478103][   T39]  <TASK>
[  302.478110][   T39]  dump_stack_lvl+0xe8/0x150
[  302.478135][   T39]  nmi_cpu_backtrace+0x274/0x2d0
[  302.478156][   T39]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  302.478180][   T39]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  302.478203][   T39]  sys_info+0x135/0x170
[  302.478220][   T39]  watchdog+0xfd3/0x1030
[  302.478250][   T39]  ? watchdog+0x1c9/0x1030
[  302.478277][   T39]  kthread+0x388/0x470
[  302.478302][   T39]  ? __pfx_watchdog+0x10/0x10
[  302.478322][   T39]  ? __pfx_kthread+0x10/0x10
[  302.478347][   T39]  ret_from_fork+0x514/0xb70
[  302.478371][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  302.478392][   T39]  ? __switch_to+0xc79/0x1410
[  302.478414][   T39]  ? __pfx_kthread+0x10/0x10
[  302.478440][   T39]  ret_from_fork_asm+0x1a/0x30
[  302.478477][   T39]  </TASK>
[  302.478485][   T39] Sending NMI from CPU 1 to CPUs 0:
[  302.478516][    C0] NMI backtrace for cpu 0
[  302.478530][    C0] CPU: 0 UID: 0 PID: 7443 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  302.478547][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.478556][    C0] RIP: 0010:debug_smp_processor_id+0xb/0x20
[  302.478581][    C0] Code: f9 e9 67 ff ff ff cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 c7 c7 00 60 a8 8b <48> c7 c6 40 60 a8 8b eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90
[  302.478595][    C0] RSP: 0018:ffffc90005d0f820 EFLAGS: 00000083
[  302.478608][    C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff82315add
[  302.478619][    C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ba86000
[  302.478629][    C0] RBP: 0000000000000000 R08: ffffffff8f8a84f7 R09: 1ffffffff1f1509e
[  302.478640][    C0] R10: dffffc0000000000 R11: fffffbfff1f1509f R12: 0000000000000000
[  302.478651][    C0] R13: 0000607ed9d2a9c0 R14: 0000000000000001 R15: ffff88801ce90f80
[  302.478662][    C0] FS:  00007fb8cbece6c0(0000) GS:ffff888125f2a000(0000) knlGS:0000000000000000
[  302.478676][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  302.478687][    C0] CR2: 00007f275e442000 CR3: 000000004071a000 CR4: 00000000003526f0
[  302.478701][    C0] Call Trace:
[  302.478708][    C0]  <TASK>
[  302.478713][    C0]  rcu_is_watching+0x15/0xb0
[  302.478730][    C0]  count_memcg_events+0xfc/0x280
[  302.478760][    C0]  memcg1_commit_charge+0xb3/0x170
[  302.478779][    C0]  charge_memcg+0x216/0x2b0
[  302.478798][    C0]  __mem_cgroup_charge+0x25/0x80
[  302.478816][    C0]  shmem_get_folio_gfp+0x75f/0x1a80
[  302.478843][    C0]  ? __pfx_shmem_get_folio_gfp+0x10/0x10
[  302.478860][    C0]  ? folio_mapping+0x16f/0x1f0
[  302.478880][    C0]  shmem_write_begin+0x166/0x320
[  302.478900][    C0]  generic_perform_write+0x2af/0x8b0
[  302.478927][    C0]  ? __pfx_generic_perform_write+0x10/0x10
[  302.478948][    C0]  ? preempt_count_add+0x91/0x190
[  302.478966][    C0]  ? mnt_put_write_access_file+0xbf/0x100
[  302.478986][    C0]  ? file_update_time_flags+0x406/0x4b0
[  302.479007][    C0]  shmem_file_write_iter+0xfb/0x120
[  302.479029][    C0]  vfs_write+0x629/0xba0
[  302.479049][    C0]  ? __pfx_vfs_write+0x10/0x10
[  302.479071][    C0]  ? __fget_files+0x2a/0x420
[  302.479090][    C0]  ksys_write+0x156/0x270
[  302.479108][    C0]  ? __pfx_ksys_write+0x10/0x10
[  302.479128][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.479144][    C0]  do_syscall_64+0x15f/0xf80
[  302.479163][    C0]  ? trace_irq_disable+0x3b/0x140
[  302.479180][    C0]  ? clear_bhb_loop+0x40/0x90
[  302.479197][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.479211][    C0] RIP: 0033:0x7fb8cc82ac4e
[  302.479225][    C0] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  302.479237][    C0] RSP: 002b:00007fb8cbecdda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  302.479252][    C0] RAX: ffffffffffffffda RBX: 00007fb8cbece6c0 RCX: 00007fb8cc82ac4e
[  302.479263][    C0] RDX: 0000000001000000 RSI: 00007fb8c3aae000 RDI: 0000000000000003
[  302.479273][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  302.479283][    C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  302.479292][    C0] R13: 00007fb8cbecdee0 R14: 00007fb8cbecdea0 R15: 00007fb8c3aae000
[  302.479311][    C0]  </TASK>
[  302.479513][   T39] Kernel panic - not syncing: hung_task: blocked tasks
[  302.479531][   T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  302.479551][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.479561][   T39] Call Trace:
[  302.479569][   T39]  <TASK>
[  302.479576][   T39]  vpanic+0x56c/0xa60
[  302.479604][   T39]  ? __pfx_vpanic+0x10/0x10
[  302.479636][   T39]  panic+0xc5/0xd0
[  302.479658][   T39]  ? __pfx_panic+0x10/0x10
[  302.479690][   T39]  ? nmi_trigger_cpumask_backtrace+0x234/0x300
[  302.479714][   T39]  watchdog+0x102c/0x1030
[  302.479742][   T39]  ? watchdog+0x1c9/0x1030
[  302.479769][   T39]  kthread+0x388/0x470
[  302.479794][   T39]  ? __pfx_watchdog+0x10/0x10
[  302.479813][   T39]  ? __pfx_kthread+0x10/0x10
[  302.479839][   T39]  ret_from_fork+0x514/0xb70
[  302.479863][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  302.479885][   T39]  ? __switch_to+0xc79/0x1410
[  302.479906][   T39]  ? __pfx_kthread+0x10/0x10
[  302.479932][   T39]  ret_from_fork_asm+0x1a/0x30
[  302.479968][   T39]  </TASK>
[  302.480370][   T39] Kernel Offset: disabled