PREEMPT_{RT,(full)} 
[  251.743569][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  251.743582][ T6417] Call Trace:
[  251.743590][ T6417]  <TASK>
[  251.743600][ T6417]  dump_stack_lvl+0xe8/0x150
[  251.743636][ T6417]  sysfs_create_dir_ns+0x271/0x2a0
[  251.743663][ T6417]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  251.743691][ T6417]  ? rt_spin_unlock+0x163/0x200
[  251.743717][ T6417]  kobject_add_internal+0x62c/0xce0
[  251.743745][ T6417]  kobject_init_and_add+0x12b/0x1a0
[  251.743794][ T6417]  ? __pfx_kobject_init_and_add+0x10/0x10
[  251.743830][ T6417]  ? __raw_spin_lock_init+0x45/0x100
[  251.743854][ T6417]  ? __init_swait_queue_head+0xa8/0x150
[  251.743886][ T6417]  gfs2_sys_fs_add+0x257/0x480
[  251.743916][ T6417]  ? is_dynamic_key+0x1aa/0x1c0
[  251.743952][ T6417]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  251.743993][ T6417]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  251.744040][ T6417]  gfs2_fill_super+0x1368/0x20f0
[  251.744078][ T6417]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.744100][ T6417]  ? rt_spin_unlock+0x157/0x200
[  251.744127][ T6417]  ? sb_set_blocksize+0x11b/0x210
[  251.744157][ T6417]  ? setup_bdev_super+0x586/0x680
[  251.744187][ T6417]  get_tree_bdev_flags+0x430/0x4f0
[  251.744214][ T6417]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.744239][ T6417]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  251.744267][ T6417]  ? rcu_is_watching+0x15/0xb0
[  251.744301][ T6417]  gfs2_get_tree+0x51/0x1e0
[  251.744330][ T6417]  vfs_get_tree+0x92/0x2a0
[  251.744360][ T6417]  do_new_mount+0x319/0xdc0
[  251.744382][ T6417]  ? cap_capable+0x123/0x460
[  251.744408][ T6417]  ? __pfx_do_new_mount+0x10/0x10
[  251.744432][ T6417]  ? ns_capable+0x89/0xe0
[  251.744462][ T6417]  ? path_mount+0x647/0x1050
[  251.744487][ T6417]  ? user_path_at+0xd4/0x160
[  251.744513][ T6417]  __se_sys_mount+0x31d/0x420
[  251.744542][ T6417]  ? __pfx___se_sys_mount+0x10/0x10
[  251.744571][ T6417]  ? __x64_sys_mount+0x20/0xc0
[  251.744592][ T6417]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.744616][ T6417]  do_syscall_64+0x174/0x580
[  251.744643][ T6417]  ? trace_irq_disable+0x3b/0x140
[  251.744664][ T6417]  ? clear_bhb_loop+0x40/0x90
[  251.744690][ T6417]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.744712][ T6417] RIP: 0033:0x7f0ea603f0ca
[  251.744733][ T6417] 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
[  251.744766][ T6417] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.744788][ T6417] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  251.744803][ T6417] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  251.744818][ T6417] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  251.744833][ T6417] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  251.744847][ T6417] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  251.744880][ T6417]  </TASK>
[  251.746435][ T6417] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.746456][ T6417] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.847978][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  251.923629][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  252.373803][ T6423] loop1: detected capacity change from 0 to 32768
[  252.379347][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.379372][ T6423] CPU: 1 UID: 0 PID: 6423 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  252.379396][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  252.379409][ T6423] Call Trace:
[  252.379418][ T6423]  <TASK>
[  252.379428][ T6423]  dump_stack_lvl+0xe8/0x150
[  252.379466][ T6423]  sysfs_create_dir_ns+0x271/0x2a0
2026/07/06 02:52:39 executed programs: 180
[  252.379492][ T6423]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.379522][ T6423]  ? rt_spin_unlock+0x163/0x200
[  252.379549][ T6423]  kobject_add_internal+0x62c/0xce0
[  252.379578][ T6423]  kobject_init_and_add+0x12b/0x1a0
[  252.379622][ T6423]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.379657][ T6423]  ? __raw_spin_lock_init+0x45/0x100
[  252.379681][ T6423]  ? __init_swait_queue_head+0xa8/0x150
[  252.379716][ T6423]  gfs2_sys_fs_add+0x257/0x480
[  252.379745][ T6423]  ? is_dynamic_key+0x1aa/0x1c0
[  252.379771][ T6423]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.379811][ T6423]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.379877][ T6423]  gfs2_fill_super+0x1368/0x20f0
[  252.379918][ T6423]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.379940][ T6423]  ? rt_spin_unlock+0x157/0x200
[  252.379966][ T6423]  ? sb_set_blocksize+0x11b/0x210
[  252.379996][ T6423]  ? setup_bdev_super+0x586/0x680
[  252.380026][ T6423]  get_tree_bdev_flags+0x430/0x4f0
[  252.380053][ T6423]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.380078][ T6423]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.380108][ T6423]  ? rcu_is_watching+0x15/0xb0
[  252.380144][ T6423]  gfs2_get_tree+0x51/0x1e0
[  252.380183][ T6423]  vfs_get_tree+0x92/0x2a0
[  252.380213][ T6423]  do_new_mount+0x319/0xdc0
[  252.380233][ T6423]  ? cap_capable+0x123/0x460
[  252.380259][ T6423]  ? __pfx_do_new_mount+0x10/0x10
[  252.380284][ T6423]  ? ns_capable+0x89/0xe0
[  252.380312][ T6423]  ? path_mount+0x647/0x1050
[  252.380337][ T6423]  ? user_path_at+0xd4/0x160
[  252.380364][ T6423]  __se_sys_mount+0x31d/0x420
[  252.380392][ T6423]  ? __pfx___se_sys_mount+0x10/0x10
[  252.380421][ T6423]  ? __x64_sys_mount+0x20/0xc0
[  252.380442][ T6423]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.380465][ T6423]  do_syscall_64+0x174/0x580
[  252.380492][ T6423]  ? trace_irq_disable+0x3b/0x140
[  252.380515][ T6423]  ? clear_bhb_loop+0x40/0x90
[  252.380543][ T6423]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.380562][ T6423] RIP: 0033:0x7f0ea603f0ca
[  252.380583][ T6423] 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
[  252.380602][ T6423] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.380625][ T6423] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  252.380641][ T6423] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  252.380656][ T6423] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  252.380670][ T6423] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  252.380683][ T6423] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  252.380718][ T6423]  </TASK>
[  252.380774][ T6423] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.380791][ T6423] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.646013][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  252.731479][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  252.990193][ T6426] loop1: detected capacity change from 0 to 32768
[  252.994053][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.994075][ T6426] CPU: 0 UID: 0 PID: 6426 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  252.994097][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  252.994108][ T6426] Call Trace:
[  252.994115][ T6426]  <TASK>
[  252.994123][ T6426]  dump_stack_lvl+0xe8/0x150
[  252.994156][ T6426]  sysfs_create_dir_ns+0x271/0x2a0
[  252.994180][ T6426]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.994205][ T6426]  ? rt_spin_unlock+0x163/0x200
[  252.994229][ T6426]  kobject_add_internal+0x62c/0xce0
[  252.994254][ T6426]  kobject_init_and_add+0x12b/0x1a0
[  252.994287][ T6426]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.994324][ T6426]  ? __raw_spin_lock_init+0x45/0x100
[  252.994347][ T6426]  ? __init_swait_queue_head+0xa8/0x150
[  252.994377][ T6426]  gfs2_sys_fs_add+0x257/0x480
[  252.994402][ T6426]  ? is_dynamic_key+0x1aa/0x1c0
[  252.994424][ T6426]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.994459][ T6426]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.994501][ T6426]  gfs2_fill_super+0x1368/0x20f0
[  252.994536][ T6426]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.994556][ T6426]  ? rt_spin_unlock+0x157/0x200
[  252.994579][ T6426]  ? sb_set_blocksize+0x11b/0x210
[  252.994606][ T6426]  ? setup_bdev_super+0x586/0x680
[  252.994633][ T6426]  get_tree_bdev_flags+0x430/0x4f0
[  252.994656][ T6426]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.994678][ T6426]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.994704][ T6426]  ? rcu_is_watching+0x15/0xb0
[  252.994733][ T6426]  gfs2_get_tree+0x51/0x1e0
[  252.994759][ T6426]  vfs_get_tree+0x92/0x2a0
[  252.994784][ T6426]  do_new_mount+0x319/0xdc0
[  252.994802][ T6426]  ? cap_capable+0x123/0x460
[  252.994825][ T6426]  ? __pfx_do_new_mount+0x10/0x10
[  252.994846][ T6426]  ? ns_capable+0x89/0xe0
[  252.994871][ T6426]  ? path_mount+0x647/0x1050
[  252.994893][ T6426]  ? user_path_at+0xd4/0x160
[  252.994917][ T6426]  __se_sys_mount+0x31d/0x420
[  252.994942][ T6426]  ? __pfx___se_sys_mount+0x10/0x10
[  252.994968][ T6426]  ? __x64_sys_mount+0x20/0xc0
[  252.994986][ T6426]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.995007][ T6426]  do_syscall_64+0x174/0x580
[  252.995030][ T6426]  ? trace_irq_disable+0x3b/0x140
[  252.995051][ T6426]  ? clear_bhb_loop+0x40/0x90
[  252.995078][ T6426]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.995096][ T6426] RIP: 0033:0x7f0ea603f0ca
[  252.995115][ T6426] 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
[  252.995131][ T6426] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.995151][ T6426] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  252.995165][ T6426] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  252.995177][ T6426] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  252.995190][ T6426] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  252.995202][ T6426] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  252.995232][ T6426]  </TASK>
[  252.995313][ T6426] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.995329][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.412909][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  253.491470][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  253.575710][ T6429] loop1: detected capacity change from 0 to 32768
[  253.597242][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.597269][ T6429] CPU: 0 UID: 0 PID: 6429 Comm: syz.1.196 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  253.597294][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  253.597316][ T6429] Call Trace:
[  253.597325][ T6429]  <TASK>
[  253.597335][ T6429]  dump_stack_lvl+0xe8/0x150
[  253.597374][ T6429]  sysfs_create_dir_ns+0x271/0x2a0
[  253.597399][ T6429]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.597430][ T6429]  ? rt_spin_unlock+0x163/0x200
[  253.597456][ T6429]  kobject_add_internal+0x62c/0xce0
[  253.597486][ T6429]  kobject_init_and_add+0x12b/0x1a0
[  253.597526][ T6429]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.597560][ T6429]  ? __raw_spin_lock_init+0x45/0x100
[  253.597584][ T6429]  ? __init_swait_queue_head+0xa8/0x150
[  253.597618][ T6429]  gfs2_sys_fs_add+0x257/0x480
[  253.597650][ T6429]  ? is_dynamic_key+0x1aa/0x1c0
[  253.597676][ T6429]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.597716][ T6429]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.597766][ T6429]  gfs2_fill_super+0x1368/0x20f0
[  253.597805][ T6429]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.597829][ T6429]  ? rt_spin_unlock+0x157/0x200
[  253.597857][ T6429]  ? sb_set_blocksize+0x11b/0x210
[  253.597888][ T6429]  ? setup_bdev_super+0x586/0x680
[  253.597919][ T6429]  get_tree_bdev_flags+0x430/0x4f0
[  253.597948][ T6429]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.597974][ T6429]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.598005][ T6429]  ? rcu_is_watching+0x15/0xb0
[  253.598040][ T6429]  gfs2_get_tree+0x51/0x1e0
[  253.598070][ T6429]  vfs_get_tree+0x92/0x2a0
[  253.598099][ T6429]  do_new_mount+0x319/0xdc0
[  253.598121][ T6429]  ? cap_capable+0x123/0x460
[  253.598147][ T6429]  ? __pfx_do_new_mount+0x10/0x10
[  253.598172][ T6429]  ? ns_capable+0x89/0xe0
[  253.598202][ T6429]  ? path_mount+0x647/0x1050
[  253.598228][ T6429]  ? user_path_at+0xd4/0x160
[  253.598256][ T6429]  __se_sys_mount+0x31d/0x420
[  253.598285][ T6429]  ? __pfx___se_sys_mount+0x10/0x10
[  253.598323][ T6429]  ? __x64_sys_mount+0x20/0xc0
[  253.598345][ T6429]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.598368][ T6429]  do_syscall_64+0x174/0x580
[  253.598395][ T6429]  ? trace_irq_disable+0x3b/0x140
[  253.598425][ T6429]  ? clear_bhb_loop+0x40/0x90
[  253.598452][ T6429]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.598474][ T6429] RIP: 0033:0x7f0ea603f0ca
[  253.598495][ T6429] 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
[  253.598512][ T6429] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.598535][ T6429] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  253.598551][ T6429] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  253.598566][ T6429] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  253.598581][ T6429] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  253.598595][ T6429] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  253.598630][ T6429]  </TASK>
[  253.602850][ T6429] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.602870][ T6429] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.619043][ T6429] Flush: task=syz.1.196[6429] dev=loop1 state=2
[  253.702265][ T6429] Teardown: task=syz.1.196[6429] dev=loop1 state=2
[  254.255671][ T6432] loop1: detected capacity change from 0 to 32768
[  254.269698][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.269722][ T6432] CPU: 0 UID: 0 PID: 6432 Comm: syz.1.197 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  254.269747][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  254.269764][ T6432] Call Trace:
[  254.269772][ T6432]  <TASK>
[  254.269781][ T6432]  dump_stack_lvl+0xe8/0x150
[  254.269818][ T6432]  sysfs_create_dir_ns+0x271/0x2a0
[  254.269845][ T6432]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.269873][ T6432]  ? rt_spin_unlock+0x163/0x200
[  254.269901][ T6432]  kobject_add_internal+0x62c/0xce0
[  254.269930][ T6432]  kobject_init_and_add+0x12b/0x1a0
[  254.269966][ T6432]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.270001][ T6432]  ? __raw_spin_lock_init+0x45/0x100
[  254.270026][ T6432]  ? __init_swait_queue_head+0xa8/0x150
[  254.270063][ T6432]  gfs2_sys_fs_add+0x257/0x480
[  254.270092][ T6432]  ? is_dynamic_key+0x1aa/0x1c0
[  254.270117][ T6432]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.270156][ T6432]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.270203][ T6432]  gfs2_fill_super+0x1368/0x20f0
[  254.270242][ T6432]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.270266][ T6432]  ? rt_spin_unlock+0x157/0x200
[  254.270300][ T6432]  ? sb_set_blocksize+0x11b/0x210
[  254.270330][ T6432]  ? setup_bdev_super+0x586/0x680
[  254.270359][ T6432]  get_tree_bdev_flags+0x430/0x4f0
[  254.270386][ T6432]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.270410][ T6432]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.270441][ T6432]  ? rcu_is_watching+0x15/0xb0
[  254.270475][ T6432]  gfs2_get_tree+0x51/0x1e0
[  254.270505][ T6432]  vfs_get_tree+0x92/0x2a0
[  254.270534][ T6432]  do_new_mount+0x319/0xdc0
[  254.270555][ T6432]  ? cap_capable+0x123/0x460
[  254.270581][ T6432]  ? __pfx_do_new_mount+0x10/0x10
[  254.270606][ T6432]  ? ns_capable+0x89/0xe0
[  254.270632][ T6432]  ? path_mount+0x647/0x1050
[  254.270656][ T6432]  ? user_path_at+0xd4/0x160
[  254.270683][ T6432]  __se_sys_mount+0x31d/0x420
[  254.270708][ T6432]  ? __pfx___se_sys_mount+0x10/0x10
[  254.270735][ T6432]  ? __x64_sys_mount+0x20/0xc0
[  254.270756][ T6432]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.270781][ T6432]  do_syscall_64+0x174/0x580
[  254.270806][ T6432]  ? trace_irq_disable+0x3b/0x140
[  254.270831][ T6432]  ? clear_bhb_loop+0x40/0x90
[  254.270858][ T6432]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.270879][ T6432] RIP: 0033:0x7f0ea603f0ca
[  254.270901][ T6432] 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
[  254.270920][ T6432] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.270944][ T6432] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  254.270959][ T6432] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  254.270973][ T6432] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  254.270987][ T6432] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  254.271001][ T6432] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  254.271035][ T6432]  </TASK>
[  254.279256][ T6432] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.279277][ T6432] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.363655][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  254.511609][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  254.887420][ T6435] loop1: detected capacity change from 0 to 32768
[  254.920079][ T6435] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.920102][ T6435] CPU: 1 UID: 0 PID: 6435 Comm: syz.1.198 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  254.920123][ T6435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  254.920133][ T6435] Call Trace:
[  254.920140][ T6435]  <TASK>
[  254.920148][ T6435]  dump_stack_lvl+0xe8/0x150
[  254.920180][ T6435]  sysfs_create_dir_ns+0x271/0x2a0
[  254.920202][ T6435]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.920226][ T6435]  ? rt_spin_unlock+0x163/0x200
[  254.920248][ T6435]  kobject_add_internal+0x62c/0xce0
[  254.920279][ T6435]  kobject_init_and_add+0x12b/0x1a0
[  254.920310][ T6435]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.920337][ T6435]  ? __raw_spin_lock_init+0x45/0x100
[  254.920356][ T6435]  ? __init_swait_queue_head+0xa8/0x150
[  254.920384][ T6435]  gfs2_sys_fs_add+0x257/0x480
[  254.920408][ T6435]  ? is_dynamic_key+0x1aa/0x1c0
[  254.920428][ T6435]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.920460][ T6435]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.920498][ T6435]  gfs2_fill_super+0x1368/0x20f0
[  254.920531][ T6435]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.920557][ T6435]  ? rt_spin_unlock+0x157/0x200
[  254.920589][ T6435]  ? sb_set_blocksize+0x11b/0x210
[  254.920613][ T6435]  ? setup_bdev_super+0x586/0x680
[  254.920640][ T6435]  get_tree_bdev_flags+0x430/0x4f0
[  254.920662][ T6435]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.920681][ T6435]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.920705][ T6435]  ? rcu_is_watching+0x15/0xb0
[  254.920732][ T6435]  gfs2_get_tree+0x51/0x1e0
[  254.920756][ T6435]  vfs_get_tree+0x92/0x2a0
[  254.920779][ T6435]  do_new_mount+0x319/0xdc0
[  254.920796][ T6435]  ? cap_capable+0x123/0x460
[  254.920818][ T6435]  ? __pfx_do_new_mount+0x10/0x10
[  254.920839][ T6435]  ? ns_capable+0x89/0xe0
[  254.920862][ T6435]  ? path_mount+0x647/0x1050
[  254.920882][ T6435]  ? user_path_at+0xd4/0x160
[  254.920904][ T6435]  __se_sys_mount+0x31d/0x420
[  254.920928][ T6435]  ? __pfx___se_sys_mount+0x10/0x10
[  254.920951][ T6435]  ? __x64_sys_mount+0x20/0xc0
[  254.920968][ T6435]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.920988][ T6435]  do_syscall_64+0x174/0x580
[  254.921009][ T6435]  ? trace_irq_disable+0x3b/0x140
[  254.921028][ T6435]  ? clear_bhb_loop+0x40/0x90
[  254.921050][ T6435]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.921067][ T6435] RIP: 0033:0x7f0ea603f0ca
[  254.921085][ T6435] 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
[  254.921100][ T6435] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.921119][ T6435] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  254.921133][ T6435] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  254.921145][ T6435] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  254.921157][ T6435] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  254.921169][ T6435] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  254.921198][ T6435]  </TASK>
[  254.921229][ T6435] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.921262][ T6435] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.169923][ T6435] Flush: task=syz.1.198[6435] dev=loop1 state=2
[  255.241890][ T6435] Teardown: task=syz.1.198[6435] dev=loop1 state=2
[  255.669533][ T6438] loop1: detected capacity change from 0 to 32768
[  255.684189][ T6438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.684214][ T6438] CPU: 0 UID: 0 PID: 6438 Comm: syz.1.199 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  255.684236][ T6438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  255.684247][ T6438] Call Trace:
[  255.684254][ T6438]  <TASK>
[  255.684263][ T6438]  dump_stack_lvl+0xe8/0x150
[  255.684298][ T6438]  sysfs_create_dir_ns+0x271/0x2a0
[  255.684323][ T6438]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  255.684350][ T6438]  ? rt_spin_unlock+0x163/0x200
[  255.684374][ T6438]  kobject_add_internal+0x62c/0xce0
[  255.684402][ T6438]  kobject_init_and_add+0x12b/0x1a0
[  255.684437][ T6438]  ? __pfx_kobject_init_and_add+0x10/0x10
[  255.684469][ T6438]  ? __raw_spin_lock_init+0x45/0x100
[  255.684493][ T6438]  ? __init_swait_queue_head+0xa8/0x150
[  255.684529][ T6438]  gfs2_sys_fs_add+0x257/0x480
[  255.684557][ T6438]  ? is_dynamic_key+0x1aa/0x1c0
[  255.684583][ T6438]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  255.684621][ T6438]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  255.684670][ T6438]  gfs2_fill_super+0x1368/0x20f0
[  255.684709][ T6438]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.684732][ T6438]  ? rt_spin_unlock+0x157/0x200
[  255.684758][ T6438]  ? sb_set_blocksize+0x11b/0x210
[  255.684798][ T6438]  ? setup_bdev_super+0x586/0x680
[  255.684828][ T6438]  get_tree_bdev_flags+0x430/0x4f0
[  255.684855][ T6438]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.684878][ T6438]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  255.684909][ T6438]  ? rcu_is_watching+0x15/0xb0
[  255.684943][ T6438]  gfs2_get_tree+0x51/0x1e0
[  255.684970][ T6438]  vfs_get_tree+0x92/0x2a0
[  255.684998][ T6438]  do_new_mount+0x319/0xdc0
[  255.685019][ T6438]  ? cap_capable+0x123/0x460
[  255.685045][ T6438]  ? __pfx_do_new_mount+0x10/0x10
[  255.685069][ T6438]  ? ns_capable+0x89/0xe0
[  255.685097][ T6438]  ? path_mount+0x647/0x1050
[  255.685121][ T6438]  ? user_path_at+0xd4/0x160
[  255.685148][ T6438]  __se_sys_mount+0x31d/0x420
[  255.685175][ T6438]  ? __pfx___se_sys_mount+0x10/0x10
[  255.685204][ T6438]  ? __x64_sys_mount+0x20/0xc0
[  255.685224][ T6438]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.685248][ T6438]  do_syscall_64+0x174/0x580
[  255.685271][ T6438]  ? trace_irq_disable+0x3b/0x140
[  255.685295][ T6438]  ? clear_bhb_loop+0x40/0x90
[  255.685321][ T6438]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.685343][ T6438] RIP: 0033:0x7f0ea603f0ca
[  255.685362][ T6438] 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
[  255.685385][ T6438] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.685409][ T6438] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  255.685424][ T6438] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  255.685438][ T6438] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  255.685451][ T6438] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  255.685464][ T6438] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  255.685497][ T6438]  </TASK>
[  255.686570][ T6438] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.686592][ T6438] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.909811][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  255.958305][ T1327] ieee802154 phy0 wpan0: encryption failed: -22
[  255.958392][ T1327] ieee802154 phy1 wpan1: encryption failed: -22
[  256.031489][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  256.371873][ T6441] loop1: detected capacity change from 0 to 32768
[  256.378092][ T6441] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.378115][ T6441] CPU: 1 UID: 0 PID: 6441 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  256.378140][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  256.378152][ T6441] Call Trace:
[  256.378161][ T6441]  <TASK>
[  256.378171][ T6441]  dump_stack_lvl+0xe8/0x150
[  256.378209][ T6441]  sysfs_create_dir_ns+0x271/0x2a0
[  256.378235][ T6441]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.378264][ T6441]  ? rt_spin_unlock+0x163/0x200
[  256.378290][ T6441]  kobject_add_internal+0x62c/0xce0
[  256.378320][ T6441]  kobject_init_and_add+0x12b/0x1a0
[  256.378356][ T6441]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.378390][ T6441]  ? __raw_spin_lock_init+0x45/0x100
[  256.378411][ T6441]  ? __init_swait_queue_head+0xa8/0x150
[  256.378435][ T6441]  gfs2_sys_fs_add+0x257/0x480
[  256.378452][ T6441]  ? is_dynamic_key+0x1aa/0x1c0
[  256.378466][ T6441]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.378487][ T6441]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.378512][ T6441]  gfs2_fill_super+0x1368/0x20f0
[  256.378534][ T6441]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.378546][ T6441]  ? rt_spin_unlock+0x157/0x200
[  256.378565][ T6441]  ? sb_set_blocksize+0x11b/0x210
[  256.378582][ T6441]  ? setup_bdev_super+0x586/0x680
[  256.378599][ T6441]  get_tree_bdev_flags+0x430/0x4f0
[  256.378622][ T6441]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.378636][ T6441]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.378653][ T6441]  ? rcu_is_watching+0x15/0xb0
[  256.378671][ T6441]  gfs2_get_tree+0x51/0x1e0
[  256.378688][ T6441]  vfs_get_tree+0x92/0x2a0
[  256.378703][ T6441]  do_new_mount+0x319/0xdc0
[  256.378715][ T6441]  ? cap_capable+0x123/0x460
[  256.378729][ T6441]  ? __pfx_do_new_mount+0x10/0x10
[  256.378742][ T6441]  ? ns_capable+0x89/0xe0
[  256.378759][ T6441]  ? path_mount+0x647/0x1050
[  256.378772][ T6441]  ? user_path_at+0xd4/0x160
[  256.378787][ T6441]  __se_sys_mount+0x31d/0x420
[  256.378803][ T6441]  ? __pfx___se_sys_mount+0x10/0x10
[  256.378819][ T6441]  ? __x64_sys_mount+0x20/0xc0
[  256.378831][ T6441]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.378844][ T6441]  do_syscall_64+0x174/0x580
[  256.378858][ T6441]  ? trace_irq_disable+0x3b/0x140
[  256.378872][ T6441]  ? clear_bhb_loop+0x40/0x90
[  256.378886][ T6441]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.378898][ T6441] RIP: 0033:0x7f0ea603f0ca
[  256.378912][ T6441] 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
[  256.378922][ T6441] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.378936][ T6441] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  256.378945][ T6441] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  256.378952][ T6441] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  256.378960][ T6441] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  256.378968][ T6441] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  256.378986][ T6441]  </TASK>
[  256.379012][ T6441] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.379021][ T6441] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.643932][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  256.753983][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  257.007223][ T6444] loop1: detected capacity change from 0 to 32768
[  257.023139][ T6444] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.023164][ T6444] CPU: 1 UID: 0 PID: 6444 Comm: syz.1.201 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  257.023187][ T6444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  257.023200][ T6444] Call Trace:
[  257.023208][ T6444]  <TASK>
[  257.023217][ T6444]  dump_stack_lvl+0xe8/0x150
[  257.023254][ T6444]  sysfs_create_dir_ns+0x271/0x2a0
[  257.023281][ T6444]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.023310][ T6444]  ? rt_spin_unlock+0x163/0x200
[  257.023335][ T6444]  kobject_add_internal+0x62c/0xce0
[  257.023365][ T6444]  kobject_init_and_add+0x12b/0x1a0
[  257.023401][ T6444]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.023437][ T6444]  ? __raw_spin_lock_init+0x45/0x100
[  257.023462][ T6444]  ? __init_swait_queue_head+0xa8/0x150
[  257.023497][ T6444]  gfs2_sys_fs_add+0x257/0x480
[  257.023527][ T6444]  ? is_dynamic_key+0x1aa/0x1c0
[  257.023553][ T6444]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.023595][ T6444]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.023654][ T6444]  gfs2_fill_super+0x1368/0x20f0
[  257.023694][ T6444]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.023718][ T6444]  ? rt_spin_unlock+0x157/0x200
[  257.023743][ T6444]  ? sb_set_blocksize+0x11b/0x210
[  257.023774][ T6444]  ? setup_bdev_super+0x586/0x680
[  257.023805][ T6444]  get_tree_bdev_flags+0x430/0x4f0
[  257.023833][ T6444]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.023857][ T6444]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.023888][ T6444]  ? rcu_is_watching+0x15/0xb0
[  257.023923][ T6444]  gfs2_get_tree+0x51/0x1e0
[  257.023953][ T6444]  vfs_get_tree+0x92/0x2a0
[  257.023982][ T6444]  do_new_mount+0x319/0xdc0
[  257.024003][ T6444]  ? cap_capable+0x123/0x460
[  257.024028][ T6444]  ? __pfx_do_new_mount+0x10/0x10
[  257.024052][ T6444]  ? ns_capable+0x89/0xe0
[  257.024081][ T6444]  ? path_mount+0x647/0x1050
[  257.024106][ T6444]  ? user_path_at+0xd4/0x160
[  257.024130][ T6444]  __se_sys_mount+0x31d/0x420
[  257.024159][ T6444]  ? __pfx___se_sys_mount+0x10/0x10
[  257.024188][ T6444]  ? __x64_sys_mount+0x20/0xc0
[  257.024209][ T6444]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.024233][ T6444]  do_syscall_64+0x174/0x580
[  257.024259][ T6444]  ? trace_irq_disable+0x3b/0x140
[  257.024286][ T6444]  ? clear_bhb_loop+0x40/0x90
[  257.024314][ T6444]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.024335][ T6444] RIP: 0033:0x7f0ea603f0ca
[  257.024355][ T6444] 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
[  257.024372][ T6444] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.024396][ T6444] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  257.024412][ T6444] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  257.024426][ T6444] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  257.024439][ T6444] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  257.024453][ T6444] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  257.024487][ T6444]  </TASK>
[  257.025983][ T6444] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.026003][ T6444] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.103956][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  257.300268][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  257.723275][ T6447] loop1: detected capacity change from 0 to 32768
[  257.728855][ T6447] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.728880][ T6447] CPU: 0 UID: 0 PID: 6447 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  257.728903][ T6447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  257.728915][ T6447] Call Trace:
[  257.728924][ T6447]  <TASK>
[  257.728934][ T6447]  dump_stack_lvl+0xe8/0x150
[  257.728972][ T6447]  sysfs_create_dir_ns+0x271/0x2a0
[  257.728998][ T6447]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.729024][ T6447]  ? rt_spin_unlock+0x163/0x200
[  257.729050][ T6447]  kobject_add_internal+0x62c/0xce0
[  257.729080][ T6447]  kobject_init_and_add+0x12b/0x1a0
[  257.729127][ T6447]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.729162][ T6447]  ? __raw_spin_lock_init+0x45/0x100
[  257.729186][ T6447]  ? __init_swait_queue_head+0xa8/0x150
[  257.729223][ T6447]  gfs2_sys_fs_add+0x257/0x480
[  257.729254][ T6447]  ? is_dynamic_key+0x1aa/0x1c0
2026/07/06 02:52:45 executed programs: 188
[  257.729281][ T6447]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.729326][ T6447]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.729374][ T6447]  gfs2_fill_super+0x1368/0x20f0
[  257.729414][ T6447]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.729437][ T6447]  ? rt_spin_unlock+0x157/0x200
[  257.729465][ T6447]  ? sb_set_blocksize+0x11b/0x210
[  257.729495][ T6447]  ? setup_bdev_super+0x586/0x680
[  257.729527][ T6447]  get_tree_bdev_flags+0x430/0x4f0
[  257.729554][ T6447]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.729579][ T6447]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.729608][ T6447]  ? rcu_is_watching+0x15/0xb0
[  257.729642][ T6447]  gfs2_get_tree+0x51/0x1e0
[  257.729671][ T6447]  vfs_get_tree+0x92/0x2a0
[  257.729701][ T6447]  do_new_mount+0x319/0xdc0
[  257.729722][ T6447]  ? cap_capable+0x123/0x460
[  257.729748][ T6447]  ? __pfx_do_new_mount+0x10/0x10
[  257.729772][ T6447]  ? ns_capable+0x89/0xe0
[  257.729802][ T6447]  ? path_mount+0x647/0x1050
[  257.729827][ T6447]  ? user_path_at+0xd4/0x160
[  257.729855][ T6447]  __se_sys_mount+0x31d/0x420
[  257.729883][ T6447]  ? __pfx___se_sys_mount+0x10/0x10
[  257.729913][ T6447]  ? __x64_sys_mount+0x20/0xc0
[  257.729934][ T6447]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.729957][ T6447]  do_syscall_64+0x174/0x580
[  257.729984][ T6447]  ? trace_irq_disable+0x3b/0x140
[  257.730008][ T6447]  ? clear_bhb_loop+0x40/0x90
[  257.730034][ T6447]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.730055][ T6447] RIP: 0033:0x7f0ea603f0ca
[  257.730077][ T6447] 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
[  257.730103][ T6447] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.730127][ T6447] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  257.730143][ T6447] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  257.730158][ T6447] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  257.730172][ T6447] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  257.730187][ T6447] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  257.730221][ T6447]  </TASK>
[  257.749688][ T6447] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.749710][ T6447] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.859486][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  257.951539][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  258.031471][ T4914] Bluetooth: hci1: command 0x0406 tx timeout
[  258.371528][ T6450] loop1: detected capacity change from 0 to 32768
[  258.388670][ T6450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.388693][ T6450] CPU: 0 UID: 0 PID: 6450 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  258.388717][ T6450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  258.388730][ T6450] Call Trace:
[  258.388739][ T6450]  <TASK>
[  258.388749][ T6450]  dump_stack_lvl+0xe8/0x150
[  258.388787][ T6450]  sysfs_create_dir_ns+0x271/0x2a0
[  258.388813][ T6450]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.388840][ T6450]  ? rt_spin_unlock+0x163/0x200
[  258.388867][ T6450]  kobject_add_internal+0x62c/0xce0
[  258.388896][ T6450]  kobject_init_and_add+0x12b/0x1a0
[  258.388930][ T6450]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.388960][ T6450]  ? __raw_spin_lock_init+0x45/0x100
[  258.388987][ T6450]  ? __init_swait_queue_head+0xa8/0x150
[  258.389020][ T6450]  gfs2_sys_fs_add+0x257/0x480
[  258.389049][ T6450]  ? is_dynamic_key+0x1aa/0x1c0
[  258.389074][ T6450]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.389112][ T6450]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.389157][ T6450]  gfs2_fill_super+0x1368/0x20f0
[  258.389192][ T6450]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.389213][ T6450]  ? rt_spin_unlock+0x157/0x200
[  258.389238][ T6450]  ? sb_set_blocksize+0x11b/0x210
[  258.389269][ T6450]  ? setup_bdev_super+0x586/0x680
[  258.389297][ T6450]  get_tree_bdev_flags+0x430/0x4f0
[  258.389323][ T6450]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.389344][ T6450]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.389371][ T6450]  ? rcu_is_watching+0x15/0xb0
[  258.389404][ T6450]  gfs2_get_tree+0x51/0x1e0
[  258.389432][ T6450]  vfs_get_tree+0x92/0x2a0
[  258.389460][ T6450]  do_new_mount+0x319/0xdc0
[  258.389480][ T6450]  ? cap_capable+0x123/0x460
[  258.389507][ T6450]  ? __pfx_do_new_mount+0x10/0x10
[  258.389531][ T6450]  ? ns_capable+0x89/0xe0
[  258.389561][ T6450]  ? path_mount+0x647/0x1050
[  258.389595][ T6450]  ? user_path_at+0xd4/0x160
[  258.389623][ T6450]  __se_sys_mount+0x31d/0x420
[  258.389652][ T6450]  ? __pfx___se_sys_mount+0x10/0x10
[  258.389682][ T6450]  ? __x64_sys_mount+0x20/0xc0
[  258.389703][ T6450]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.389727][ T6450]  do_syscall_64+0x174/0x580
[  258.389754][ T6450]  ? trace_irq_disable+0x3b/0x140
[  258.389780][ T6450]  ? clear_bhb_loop+0x40/0x90
[  258.389807][ T6450]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.389828][ T6450] RIP: 0033:0x7f0ea603f0ca
[  258.389850][ T6450] 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
[  258.389868][ T6450] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.389892][ T6450] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  258.389908][ T6450] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  258.389923][ T6450] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  258.389937][ T6450] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  258.389951][ T6450] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  258.389986][ T6450]  </TASK>
[  258.398475][ T6450] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.398498][ T6450] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.603566][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  258.674239][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  259.016644][ T6453] loop1: detected capacity change from 0 to 32768
[  259.029033][ T6453] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.029056][ T6453] CPU: 0 UID: 0 PID: 6453 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  259.029081][ T6453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  259.029094][ T6453] Call Trace:
[  259.029103][ T6453]  <TASK>
[  259.029113][ T6453]  dump_stack_lvl+0xe8/0x150
[  259.029150][ T6453]  sysfs_create_dir_ns+0x271/0x2a0
[  259.029175][ T6453]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.029214][ T6453]  ? rt_spin_unlock+0x163/0x200
[  259.029241][ T6453]  kobject_add_internal+0x62c/0xce0
[  259.029269][ T6453]  kobject_init_and_add+0x12b/0x1a0
[  259.029307][ T6453]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.029342][ T6453]  ? __raw_spin_lock_init+0x45/0x100
[  259.029366][ T6453]  ? __init_swait_queue_head+0xa8/0x150
[  259.029400][ T6453]  gfs2_sys_fs_add+0x257/0x480
[  259.029431][ T6453]  ? is_dynamic_key+0x1aa/0x1c0
[  259.029460][ T6453]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.029500][ T6453]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.029547][ T6453]  gfs2_fill_super+0x1368/0x20f0
[  259.029586][ T6453]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.029610][ T6453]  ? rt_spin_unlock+0x157/0x200
[  259.029637][ T6453]  ? sb_set_blocksize+0x11b/0x210
[  259.029668][ T6453]  ? setup_bdev_super+0x586/0x680
[  259.029697][ T6453]  get_tree_bdev_flags+0x430/0x4f0
[  259.029723][ T6453]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.029749][ T6453]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.029779][ T6453]  ? rcu_is_watching+0x15/0xb0
[  259.029812][ T6453]  gfs2_get_tree+0x51/0x1e0
[  259.029841][ T6453]  vfs_get_tree+0x92/0x2a0
[  259.029871][ T6453]  do_new_mount+0x319/0xdc0
[  259.029892][ T6453]  ? cap_capable+0x123/0x460
[  259.029918][ T6453]  ? __pfx_do_new_mount+0x10/0x10
[  259.029940][ T6453]  ? ns_capable+0x89/0xe0
[  259.029969][ T6453]  ? path_mount+0x647/0x1050
[  259.029995][ T6453]  ? user_path_at+0xd4/0x160
[  259.030020][ T6453]  __se_sys_mount+0x31d/0x420
[  259.030047][ T6453]  ? __pfx___se_sys_mount+0x10/0x10
[  259.030075][ T6453]  ? __x64_sys_mount+0x20/0xc0
[  259.030095][ T6453]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.030116][ T6453]  do_syscall_64+0x174/0x580
[  259.030141][ T6453]  ? trace_irq_disable+0x3b/0x140
[  259.030165][ T6453]  ? clear_bhb_loop+0x40/0x90
[  259.030190][ T6453]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.030222][ T6453] RIP: 0033:0x7f0ea603f0ca
[  259.030243][ T6453] 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
[  259.030260][ T6453] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.030283][ T6453] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  259.030298][ T6453] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  259.030312][ T6453] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  259.030327][ T6453] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  259.030340][ T6453] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  259.030374][ T6453]  </TASK>
[  259.097209][ T6453] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.097232][ T6453] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.114404][ T6453] Flush: task=syz.1.204[6453] dev=loop1 state=2
[  259.261632][ T6453] Teardown: task=syz.1.204[6453] dev=loop1 state=2
[  259.729596][ T6456] loop1: detected capacity change from 0 to 32768
[  259.749900][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.749926][ T6456] CPU: 1 UID: 0 PID: 6456 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  259.749950][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  259.749962][ T6456] Call Trace:
[  259.749971][ T6456]  <TASK>
[  259.749980][ T6456]  dump_stack_lvl+0xe8/0x150
[  259.750019][ T6456]  sysfs_create_dir_ns+0x271/0x2a0
[  259.750044][ T6456]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.750072][ T6456]  ? rt_spin_unlock+0x163/0x200
[  259.750098][ T6456]  kobject_add_internal+0x62c/0xce0
[  259.750126][ T6456]  kobject_init_and_add+0x12b/0x1a0
[  259.750163][ T6456]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.750194][ T6456]  ? __raw_spin_lock_init+0x45/0x100
[  259.750219][ T6456]  ? __init_swait_queue_head+0xa8/0x150
[  259.750259][ T6456]  gfs2_sys_fs_add+0x257/0x480
[  259.750289][ T6456]  ? is_dynamic_key+0x1aa/0x1c0
[  259.750313][ T6456]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.750352][ T6456]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.750398][ T6456]  gfs2_fill_super+0x1368/0x20f0
[  259.750437][ T6456]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.750459][ T6456]  ? rt_spin_unlock+0x157/0x200
[  259.750484][ T6456]  ? sb_set_blocksize+0x11b/0x210
[  259.750514][ T6456]  ? setup_bdev_super+0x586/0x680
[  259.750545][ T6456]  get_tree_bdev_flags+0x430/0x4f0
[  259.750570][ T6456]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.750595][ T6456]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.750625][ T6456]  ? rcu_is_watching+0x15/0xb0
[  259.750659][ T6456]  gfs2_get_tree+0x51/0x1e0
[  259.750697][ T6456]  vfs_get_tree+0x92/0x2a0
[  259.750727][ T6456]  do_new_mount+0x319/0xdc0
[  259.750748][ T6456]  ? cap_capable+0x123/0x460
[  259.750773][ T6456]  ? __pfx_do_new_mount+0x10/0x10
[  259.750798][ T6456]  ? ns_capable+0x89/0xe0
[  259.750827][ T6456]  ? path_mount+0x647/0x1050
[  259.750853][ T6456]  ? user_path_at+0xd4/0x160
[  259.750880][ T6456]  __se_sys_mount+0x31d/0x420
[  259.750909][ T6456]  ? __pfx___se_sys_mount+0x10/0x10
[  259.750938][ T6456]  ? __x64_sys_mount+0x20/0xc0
[  259.750957][ T6456]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.750981][ T6456]  do_syscall_64+0x174/0x580
[  259.751008][ T6456]  ? trace_irq_disable+0x3b/0x140
[  259.751033][ T6456]  ? clear_bhb_loop+0x40/0x90
[  259.751060][ T6456]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.751082][ T6456] RIP: 0033:0x7f0ea603f0ca
[  259.751103][ T6456] 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
[  259.751119][ T6456] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.751142][ T6456] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  259.751158][ T6456] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  259.751172][ T6456] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  259.751185][ T6456] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  259.751199][ T6456] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  259.751234][ T6456]  </TASK>
[  259.757986][ T6456] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.758008][ T6456] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.911066][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  259.991443][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  260.353658][ T6459] loop1: detected capacity change from 0 to 32768
[  260.359910][ T6459] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.359934][ T6459] CPU: 0 UID: 0 PID: 6459 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  260.359958][ T6459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  260.359971][ T6459] Call Trace:
[  260.359980][ T6459]  <TASK>
[  260.359998][ T6459]  dump_stack_lvl+0xe8/0x150
[  260.360037][ T6459]  sysfs_create_dir_ns+0x271/0x2a0
[  260.360064][ T6459]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.360092][ T6459]  ? rt_spin_unlock+0x163/0x200
[  260.360119][ T6459]  kobject_add_internal+0x62c/0xce0
[  260.360148][ T6459]  kobject_init_and_add+0x12b/0x1a0
[  260.360186][ T6459]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.360221][ T6459]  ? __raw_spin_lock_init+0x45/0x100
[  260.360245][ T6459]  ? __init_swait_queue_head+0xa8/0x150
[  260.360281][ T6459]  gfs2_sys_fs_add+0x257/0x480
[  260.360310][ T6459]  ? is_dynamic_key+0x1aa/0x1c0
[  260.360336][ T6459]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.360377][ T6459]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.360426][ T6459]  gfs2_fill_super+0x1368/0x20f0
[  260.360466][ T6459]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.360489][ T6459]  ? rt_spin_unlock+0x157/0x200
[  260.360516][ T6459]  ? sb_set_blocksize+0x11b/0x210
[  260.360547][ T6459]  ? setup_bdev_super+0x586/0x680
[  260.360578][ T6459]  get_tree_bdev_flags+0x430/0x4f0
[  260.360606][ T6459]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.360631][ T6459]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.360660][ T6459]  ? rcu_is_watching+0x15/0xb0
[  260.360694][ T6459]  gfs2_get_tree+0x51/0x1e0
[  260.360725][ T6459]  vfs_get_tree+0x92/0x2a0
[  260.360754][ T6459]  do_new_mount+0x319/0xdc0
[  260.360774][ T6459]  ? cap_capable+0x123/0x460
[  260.360800][ T6459]  ? __pfx_do_new_mount+0x10/0x10
[  260.360824][ T6459]  ? ns_capable+0x89/0xe0
[  260.360854][ T6459]  ? path_mount+0x647/0x1050
[  260.360879][ T6459]  ? user_path_at+0xd4/0x160
[  260.360906][ T6459]  __se_sys_mount+0x31d/0x420
[  260.360935][ T6459]  ? __pfx___se_sys_mount+0x10/0x10
[  260.360972][ T6459]  ? __x64_sys_mount+0x20/0xc0
[  260.361000][ T6459]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.361028][ T6459]  do_syscall_64+0x174/0x580
[  260.361053][ T6459]  ? trace_irq_disable+0x3b/0x140
[  260.361076][ T6459]  ? clear_bhb_loop+0x40/0x90
[  260.361103][ T6459]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.361124][ T6459] RIP: 0033:0x7f0ea603f0ca
[  260.361145][ T6459] 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
[  260.361161][ T6459] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.361183][ T6459] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  260.361199][ T6459] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  260.361214][ T6459] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  260.361228][ T6459] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  260.361242][ T6459] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  260.361275][ T6459]  </TASK>
[  260.444590][ T6459] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.444612][ T6459] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.478140][ T6459] Flush: task=syz.1.206[6459] dev=loop1 state=2
[  260.575935][ T6459] Teardown: task=syz.1.206[6459] dev=loop1 state=2
[  261.082225][ T6462] loop1: detected capacity change from 0 to 32768
[  261.090924][ T6462] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.090949][ T6462] CPU: 1 UID: 0 PID: 6462 Comm: syz.1.207 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  261.090973][ T6462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  261.090986][ T6462] Call Trace:
[  261.090995][ T6462]  <TASK>
[  261.091005][ T6462]  dump_stack_lvl+0xe8/0x150
[  261.091043][ T6462]  sysfs_create_dir_ns+0x271/0x2a0
[  261.091069][ T6462]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.091097][ T6462]  ? rt_spin_unlock+0x163/0x200
[  261.091124][ T6462]  kobject_add_internal+0x62c/0xce0
[  261.091151][ T6462]  kobject_init_and_add+0x12b/0x1a0
[  261.091190][ T6462]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.091222][ T6462]  ? __raw_spin_lock_init+0x45/0x100
[  261.091247][ T6462]  ? __init_swait_queue_head+0xa8/0x150
[  261.091281][ T6462]  gfs2_sys_fs_add+0x257/0x480
[  261.091315][ T6462]  ? is_dynamic_key+0x1aa/0x1c0
[  261.091339][ T6462]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.091377][ T6462]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.091423][ T6462]  gfs2_fill_super+0x1368/0x20f0
[  261.091464][ T6462]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.091488][ T6462]  ? rt_spin_unlock+0x157/0x200
[  261.091514][ T6462]  ? sb_set_blocksize+0x11b/0x210
[  261.091546][ T6462]  ? setup_bdev_super+0x586/0x680
[  261.091578][ T6462]  get_tree_bdev_flags+0x430/0x4f0
[  261.091605][ T6462]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.091629][ T6462]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.091669][ T6462]  ? rcu_is_watching+0x15/0xb0
[  261.091704][ T6462]  gfs2_get_tree+0x51/0x1e0
[  261.091734][ T6462]  vfs_get_tree+0x92/0x2a0
[  261.091764][ T6462]  do_new_mount+0x319/0xdc0
[  261.091784][ T6462]  ? cap_capable+0x123/0x460
[  261.091808][ T6462]  ? __pfx_do_new_mount+0x10/0x10
[  261.091831][ T6462]  ? ns_capable+0x89/0xe0
[  261.091860][ T6462]  ? path_mount+0x647/0x1050
[  261.091884][ T6462]  ? user_path_at+0xd4/0x160
[  261.091912][ T6462]  __se_sys_mount+0x31d/0x420
[  261.091940][ T6462]  ? __pfx___se_sys_mount+0x10/0x10
[  261.091969][ T6462]  ? __x64_sys_mount+0x20/0xc0
[  261.091991][ T6462]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.092015][ T6462]  do_syscall_64+0x174/0x580
[  261.092040][ T6462]  ? trace_irq_disable+0x3b/0x140
[  261.092064][ T6462]  ? clear_bhb_loop+0x40/0x90
[  261.092090][ T6462]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.092111][ T6462] RIP: 0033:0x7f0ea603f0ca
[  261.092132][ T6462] 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
[  261.092147][ T6462] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.092166][ T6462] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  261.092181][ T6462] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  261.092195][ T6462] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  261.092209][ T6462] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  261.092223][ T6462] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  261.092258][ T6462]  </TASK>
[  261.095030][ T6462] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.095048][ T6462] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.270801][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  261.511530][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  261.804009][ T6465] loop1: detected capacity change from 0 to 32768
[  261.810662][ T6465] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.810687][ T6465] CPU: 0 UID: 0 PID: 6465 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  261.810711][ T6465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  261.810723][ T6465] Call Trace:
[  261.810733][ T6465]  <TASK>
[  261.810742][ T6465]  dump_stack_lvl+0xe8/0x150
[  261.810781][ T6465]  sysfs_create_dir_ns+0x271/0x2a0
[  261.810808][ T6465]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.810837][ T6465]  ? rt_spin_unlock+0x163/0x200
[  261.810863][ T6465]  kobject_add_internal+0x62c/0xce0
[  261.810893][ T6465]  kobject_init_and_add+0x12b/0x1a0
[  261.810931][ T6465]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.810965][ T6465]  ? __raw_spin_lock_init+0x45/0x100
[  261.810988][ T6465]  ? __init_swait_queue_head+0xa8/0x150
[  261.811034][ T6465]  gfs2_sys_fs_add+0x257/0x480
[  261.811064][ T6465]  ? is_dynamic_key+0x1aa/0x1c0
[  261.811089][ T6465]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.811128][ T6465]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.811176][ T6465]  gfs2_fill_super+0x1368/0x20f0
[  261.811216][ T6465]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.811239][ T6465]  ? rt_spin_unlock+0x157/0x200
[  261.811266][ T6465]  ? sb_set_blocksize+0x11b/0x210
[  261.811301][ T6465]  ? setup_bdev_super+0x586/0x680
[  261.811329][ T6465]  get_tree_bdev_flags+0x430/0x4f0
[  261.811355][ T6465]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.811378][ T6465]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.811407][ T6465]  ? rcu_is_watching+0x15/0xb0
[  261.811439][ T6465]  gfs2_get_tree+0x51/0x1e0
[  261.811468][ T6465]  vfs_get_tree+0x92/0x2a0
[  261.811496][ T6465]  do_new_mount+0x319/0xdc0
[  261.811516][ T6465]  ? cap_capable+0x123/0x460
[  261.811543][ T6465]  ? __pfx_do_new_mount+0x10/0x10
[  261.811567][ T6465]  ? ns_capable+0x89/0xe0
[  261.811597][ T6465]  ? path_mount+0x647/0x1050
[  261.811623][ T6465]  ? user_path_at+0xd4/0x160
[  261.811650][ T6465]  __se_sys_mount+0x31d/0x420
[  261.811679][ T6465]  ? __pfx___se_sys_mount+0x10/0x10
[  261.811708][ T6465]  ? __x64_sys_mount+0x20/0xc0
[  261.811730][ T6465]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.811754][ T6465]  do_syscall_64+0x174/0x580
[  261.811780][ T6465]  ? trace_irq_disable+0x3b/0x140
[  261.811804][ T6465]  ? clear_bhb_loop+0x40/0x90
[  261.811830][ T6465]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.811852][ T6465] RIP: 0033:0x7f0ea603f0ca
[  261.811873][ T6465] 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
[  261.811890][ T6465] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.811914][ T6465] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  261.811929][ T6465] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  261.811943][ T6465] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  261.811956][ T6465] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  261.811970][ T6465] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  261.812009][ T6465]  </TASK>
[  261.821898][ T6465] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.821920][ T6465] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.067701][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  262.141450][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  262.436907][ T6468] loop1: detected capacity change from 0 to 32768
[  262.449204][ T6468] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.449229][ T6468] CPU: 0 UID: 0 PID: 6468 Comm: syz.1.209 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  262.449252][ T6468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  262.449264][ T6468] Call Trace:
[  262.449272][ T6468]  <TASK>
[  262.449282][ T6468]  dump_stack_lvl+0xe8/0x150
[  262.449319][ T6468]  sysfs_create_dir_ns+0x271/0x2a0
[  262.449346][ T6468]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  262.449375][ T6468]  ? rt_spin_unlock+0x163/0x200
[  262.449401][ T6468]  kobject_add_internal+0x62c/0xce0
[  262.449431][ T6468]  kobject_init_and_add+0x12b/0x1a0
[  262.449469][ T6468]  ? __pfx_kobject_init_and_add+0x10/0x10
[  262.449504][ T6468]  ? __raw_spin_lock_init+0x45/0x100
[  262.449527][ T6468]  ? __init_swait_queue_head+0xa8/0x150
[  262.449562][ T6468]  gfs2_sys_fs_add+0x257/0x480
[  262.449591][ T6468]  ? is_dynamic_key+0x1aa/0x1c0
[  262.449616][ T6468]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  262.449657][ T6468]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  262.449715][ T6468]  gfs2_fill_super+0x1368/0x20f0
[  262.449753][ T6468]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.449777][ T6468]  ? rt_spin_unlock+0x157/0x200
[  262.449804][ T6468]  ? sb_set_blocksize+0x11b/0x210
[  262.449835][ T6468]  ? setup_bdev_super+0x586/0x680
[  262.449864][ T6468]  get_tree_bdev_flags+0x430/0x4f0
[  262.449892][ T6468]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.449917][ T6468]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  262.449951][ T6468]  ? rcu_is_watching+0x15/0xb0
[  262.449984][ T6468]  gfs2_get_tree+0x51/0x1e0
[  262.450013][ T6468]  vfs_get_tree+0x92/0x2a0
[  262.450042][ T6468]  do_new_mount+0x319/0xdc0
[  262.450063][ T6468]  ? cap_capable+0x123/0x460
[  262.450089][ T6468]  ? __pfx_do_new_mount+0x10/0x10
[  262.450113][ T6468]  ? ns_capable+0x89/0xe0
[  262.450143][ T6468]  ? path_mount+0x647/0x1050
[  262.450167][ T6468]  ? user_path_at+0xd4/0x160
[  262.450194][ T6468]  __se_sys_mount+0x31d/0x420
[  262.450223][ T6468]  ? __pfx___se_sys_mount+0x10/0x10
[  262.450252][ T6468]  ? __x64_sys_mount+0x20/0xc0
[  262.450274][ T6468]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.450297][ T6468]  do_syscall_64+0x174/0x580
[  262.450324][ T6468]  ? trace_irq_disable+0x3b/0x140
[  262.450348][ T6468]  ? clear_bhb_loop+0x40/0x90
[  262.450374][ T6468]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.450395][ T6468] RIP: 0033:0x7f0ea603f0ca
[  262.450417][ T6468] 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
[  262.450434][ T6468] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.450458][ T6468] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  262.450474][ T6468] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  262.450487][ T6468] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  262.450500][ T6468] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  262.450514][ T6468] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  262.450548][ T6468]  </TASK>
[  262.450606][ T6468] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.450623][ T6468] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.665836][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  262.741419][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  263.093916][ T6471] loop1: detected capacity change from 0 to 32768
[  263.111234][ T6471] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.111259][ T6471] CPU: 1 UID: 0 PID: 6471 Comm: syz.1.210 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  263.111284][ T6471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  263.111301][ T6471] Call Trace:
[  263.111309][ T6471]  <TASK>
[  263.111319][ T6471]  dump_stack_lvl+0xe8/0x150
[  263.111356][ T6471]  sysfs_create_dir_ns+0x271/0x2a0
[  263.111383][ T6471]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.111412][ T6471]  ? rt_spin_unlock+0x163/0x200
[  263.111438][ T6471]  kobject_add_internal+0x62c/0xce0
[  263.111467][ T6471]  kobject_init_and_add+0x12b/0x1a0
[  263.111506][ T6471]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.111541][ T6471]  ? __raw_spin_lock_init+0x45/0x100
[  263.111566][ T6471]  ? __init_swait_queue_head+0xa8/0x150
[  263.111601][ T6471]  gfs2_sys_fs_add+0x257/0x480
2026/07/06 02:52:50 executed programs: 196
[  263.111636][ T6471]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.111667][ T6471]  ? irqentry_exit+0x218/0x8f0
[  263.111692][ T6471]  ? trace_irq_disable+0x3b/0x140
[  263.111740][ T6471]  gfs2_fill_super+0x1368/0x20f0
[  263.111779][ T6471]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.111803][ T6471]  ? rt_spin_unlock+0x157/0x200
[  263.111828][ T6471]  ? sb_set_blocksize+0x11b/0x210
[  263.111859][ T6471]  ? setup_bdev_super+0x586/0x680
[  263.111889][ T6471]  get_tree_bdev_flags+0x430/0x4f0
[  263.111916][ T6471]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.111942][ T6471]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.111972][ T6471]  ? rcu_is_watching+0x15/0xb0
[  263.112006][ T6471]  gfs2_get_tree+0x51/0x1e0
[  263.112036][ T6471]  vfs_get_tree+0x92/0x2a0
[  263.112065][ T6471]  do_new_mount+0x319/0xdc0
[  263.112086][ T6471]  ? cap_capable+0x123/0x460
[  263.112112][ T6471]  ? __pfx_do_new_mount+0x10/0x10
[  263.112144][ T6471]  ? ns_capable+0x89/0xe0
[  263.112174][ T6471]  ? path_mount+0x647/0x1050
[  263.112199][ T6471]  ? user_path_at+0xd4/0x160
[  263.112227][ T6471]  __se_sys_mount+0x31d/0x420
[  263.112256][ T6471]  ? __pfx___se_sys_mount+0x10/0x10
[  263.112286][ T6471]  ? __x64_sys_mount+0x20/0xc0
[  263.112307][ T6471]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.112331][ T6471]  do_syscall_64+0x174/0x580
[  263.112355][ T6471]  ? trace_irq_disable+0x3b/0x140
[  263.112378][ T6471]  ? clear_bhb_loop+0x40/0x90
[  263.112403][ T6471]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.112425][ T6471] RIP: 0033:0x7f0ea603f0ca
[  263.112446][ T6471] 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
[  263.112463][ T6471] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.112485][ T6471] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  263.112500][ T6471] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  263.112515][ T6471] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  263.112529][ T6471] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  263.112543][ T6471] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  263.112575][ T6471]  </TASK>
[  263.118643][ T6471] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.118663][ T6471] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.259122][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  263.351598][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  263.759072][ T6474] loop1: detected capacity change from 0 to 32768
[  263.779253][ T6474] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.779280][ T6474] CPU: 0 UID: 0 PID: 6474 Comm: syz.1.211 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  263.779304][ T6474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  263.779316][ T6474] Call Trace:
[  263.779325][ T6474]  <TASK>
[  263.779334][ T6474]  dump_stack_lvl+0xe8/0x150
[  263.779374][ T6474]  sysfs_create_dir_ns+0x271/0x2a0
[  263.779401][ T6474]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.779428][ T6474]  ? rt_spin_unlock+0x163/0x200
[  263.779454][ T6474]  kobject_add_internal+0x62c/0xce0
[  263.779484][ T6474]  kobject_init_and_add+0x12b/0x1a0
[  263.779523][ T6474]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.779556][ T6474]  ? __raw_spin_lock_init+0x45/0x100
[  263.779580][ T6474]  ? __init_swait_queue_head+0xa8/0x150
[  263.779614][ T6474]  gfs2_sys_fs_add+0x257/0x480
[  263.779643][ T6474]  ? is_dynamic_key+0x1aa/0x1c0
[  263.779685][ T6474]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.779725][ T6474]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.779770][ T6474]  gfs2_fill_super+0x1368/0x20f0
[  263.779797][ T6474]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.779810][ T6474]  ? rt_spin_unlock+0x157/0x200
[  263.779824][ T6474]  ? sb_set_blocksize+0x11b/0x210
[  263.779841][ T6474]  ? setup_bdev_super+0x586/0x680
[  263.779858][ T6474]  get_tree_bdev_flags+0x430/0x4f0
[  263.779873][ T6474]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.779887][ T6474]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.779903][ T6474]  ? rcu_is_watching+0x15/0xb0
[  263.779922][ T6474]  gfs2_get_tree+0x51/0x1e0
[  263.779939][ T6474]  vfs_get_tree+0x92/0x2a0
[  263.779954][ T6474]  do_new_mount+0x319/0xdc0
[  263.779966][ T6474]  ? cap_capable+0x123/0x460
[  263.779980][ T6474]  ? __pfx_do_new_mount+0x10/0x10
[  263.779993][ T6474]  ? ns_capable+0x89/0xe0
[  263.780009][ T6474]  ? path_mount+0x647/0x1050
[  263.780023][ T6474]  ? user_path_at+0xd4/0x160
[  263.780038][ T6474]  __se_sys_mount+0x31d/0x420
[  263.780054][ T6474]  ? __pfx___se_sys_mount+0x10/0x10
[  263.780070][ T6474]  ? __x64_sys_mount+0x20/0xc0
[  263.780081][ T6474]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.780094][ T6474]  do_syscall_64+0x174/0x580
[  263.780109][ T6474]  ? trace_irq_disable+0x3b/0x140
[  263.780122][ T6474]  ? clear_bhb_loop+0x40/0x90
[  263.780144][ T6474]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.780156][ T6474] RIP: 0033:0x7f0ea603f0ca
[  263.780169][ T6474] 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
[  263.780179][ T6474] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.780194][ T6474] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  263.780202][ T6474] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  263.780210][ T6474] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  263.780218][ T6474] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  263.780225][ T6474] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  263.780244][ T6474]  </TASK>
[  263.780396][ T6474] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.780414][ T6474] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.928531][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  264.013733][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  264.387800][ T6477] loop1: detected capacity change from 0 to 32768
[  264.398832][ T6477] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.398856][ T6477] CPU: 1 UID: 0 PID: 6477 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  264.398878][ T6477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  264.398891][ T6477] Call Trace:
[  264.398899][ T6477]  <TASK>
[  264.398908][ T6477]  dump_stack_lvl+0xe8/0x150
[  264.398945][ T6477]  sysfs_create_dir_ns+0x271/0x2a0
[  264.398972][ T6477]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.399001][ T6477]  ? rt_spin_unlock+0x163/0x200
[  264.399027][ T6477]  kobject_add_internal+0x62c/0xce0
[  264.399055][ T6477]  kobject_init_and_add+0x12b/0x1a0
[  264.399102][ T6477]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.399138][ T6477]  ? __raw_spin_lock_init+0x45/0x100
[  264.399163][ T6477]  ? __init_swait_queue_head+0xa8/0x150
[  264.399198][ T6477]  gfs2_sys_fs_add+0x257/0x480
[  264.399228][ T6477]  ? is_dynamic_key+0x1aa/0x1c0
[  264.399253][ T6477]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.399292][ T6477]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.399345][ T6477]  gfs2_fill_super+0x1368/0x20f0
[  264.399383][ T6477]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.399406][ T6477]  ? rt_spin_unlock+0x157/0x200
[  264.399433][ T6477]  ? sb_set_blocksize+0x11b/0x210
[  264.399465][ T6477]  ? setup_bdev_super+0x586/0x680
[  264.399495][ T6477]  get_tree_bdev_flags+0x430/0x4f0
[  264.399522][ T6477]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.399547][ T6477]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.399587][ T6477]  ? rcu_is_watching+0x15/0xb0
[  264.399619][ T6477]  gfs2_get_tree+0x51/0x1e0
[  264.399648][ T6477]  vfs_get_tree+0x92/0x2a0
[  264.399700][ T6477]  do_new_mount+0x319/0xdc0
[  264.399721][ T6477]  ? cap_capable+0x123/0x460
[  264.399747][ T6477]  ? __pfx_do_new_mount+0x10/0x10
[  264.399772][ T6477]  ? ns_capable+0x89/0xe0
[  264.399802][ T6477]  ? path_mount+0x647/0x1050
[  264.399827][ T6477]  ? user_path_at+0xd4/0x160
[  264.399854][ T6477]  __se_sys_mount+0x31d/0x420
[  264.399883][ T6477]  ? __pfx___se_sys_mount+0x10/0x10
[  264.399913][ T6477]  ? __x64_sys_mount+0x20/0xc0
[  264.399934][ T6477]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.399958][ T6477]  do_syscall_64+0x174/0x580
[  264.399984][ T6477]  ? trace_irq_disable+0x3b/0x140
[  264.400009][ T6477]  ? clear_bhb_loop+0x40/0x90
[  264.400036][ T6477]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.400057][ T6477] RIP: 0033:0x7f0ea603f0ca
[  264.400077][ T6477] 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
[  264.400094][ T6477] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.400117][ T6477] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  264.400133][ T6477] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  264.400148][ T6477] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  264.400161][ T6477] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  264.400175][ T6477] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  264.400210][ T6477]  </TASK>
[  264.405848][ T6477] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.405868][ T6477] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.512354][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  264.581646][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  265.017864][ T6480] loop1: detected capacity change from 0 to 32768
[  265.049774][ T6480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.049797][ T6480] CPU: 0 UID: 0 PID: 6480 Comm: syz.1.213 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  265.049817][ T6480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  265.049827][ T6480] Call Trace:
[  265.049834][ T6480]  <TASK>
[  265.049842][ T6480]  dump_stack_lvl+0xe8/0x150
[  265.049874][ T6480]  sysfs_create_dir_ns+0x271/0x2a0
[  265.049897][ T6480]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.049920][ T6480]  ? rt_spin_unlock+0x163/0x200
[  265.049941][ T6480]  kobject_add_internal+0x62c/0xce0
[  265.049964][ T6480]  kobject_init_and_add+0x12b/0x1a0
[  265.050026][ T6480]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.050054][ T6480]  ? __raw_spin_lock_init+0x45/0x100
[  265.050074][ T6480]  ? __init_swait_queue_head+0xa8/0x150
[  265.050102][ T6480]  gfs2_sys_fs_add+0x257/0x480
[  265.050129][ T6480]  ? is_dynamic_key+0x1aa/0x1c0
[  265.050153][ T6480]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.050188][ T6480]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.050232][ T6480]  gfs2_fill_super+0x1368/0x20f0
[  265.050269][ T6480]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.050291][ T6480]  ? rt_spin_unlock+0x157/0x200
[  265.050318][ T6480]  ? sb_set_blocksize+0x11b/0x210
[  265.050348][ T6480]  ? setup_bdev_super+0x586/0x680
[  265.050377][ T6480]  get_tree_bdev_flags+0x430/0x4f0
[  265.050401][ T6480]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.050425][ T6480]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.050451][ T6480]  ? rcu_is_watching+0x15/0xb0
[  265.050484][ T6480]  gfs2_get_tree+0x51/0x1e0
[  265.050511][ T6480]  vfs_get_tree+0x92/0x2a0
[  265.050540][ T6480]  do_new_mount+0x319/0xdc0
[  265.050559][ T6480]  ? cap_capable+0x123/0x460
[  265.050584][ T6480]  ? __pfx_do_new_mount+0x10/0x10
[  265.050604][ T6480]  ? ns_capable+0x89/0xe0
[  265.050632][ T6480]  ? path_mount+0x647/0x1050
[  265.050657][ T6480]  ? user_path_at+0xd4/0x160
[  265.050682][ T6480]  __se_sys_mount+0x31d/0x420
[  265.050709][ T6480]  ? __pfx___se_sys_mount+0x10/0x10
[  265.050737][ T6480]  ? __x64_sys_mount+0x20/0xc0
[  265.050758][ T6480]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.050780][ T6480]  do_syscall_64+0x174/0x580
[  265.050806][ T6480]  ? trace_irq_disable+0x3b/0x140
[  265.050830][ T6480]  ? clear_bhb_loop+0x40/0x90
[  265.050855][ T6480]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.050876][ T6480] RIP: 0033:0x7f0ea603f0ca
[  265.050897][ T6480] 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
[  265.050918][ T6480] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.050942][ T6480] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  265.050958][ T6480] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  265.050972][ T6480] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  265.050995][ T6480] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  265.051008][ T6480] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  265.051040][ T6480]  </TASK>
[  265.051145][ T6480] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.051160][ T6480] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.235054][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  265.352913][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  265.701199][ T6483] loop1: detected capacity change from 0 to 32768
[  265.725570][ T6483] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.725596][ T6483] CPU: 0 UID: 0 PID: 6483 Comm: syz.1.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  265.725621][ T6483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  265.725634][ T6483] Call Trace:
[  265.725643][ T6483]  <TASK>
[  265.725653][ T6483]  dump_stack_lvl+0xe8/0x150
[  265.725691][ T6483]  sysfs_create_dir_ns+0x271/0x2a0
[  265.725717][ T6483]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.725746][ T6483]  ? rt_spin_unlock+0x163/0x200
[  265.725775][ T6483]  kobject_add_internal+0x62c/0xce0
[  265.725805][ T6483]  kobject_init_and_add+0x12b/0x1a0
[  265.725844][ T6483]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.725876][ T6483]  ? __raw_spin_lock_init+0x45/0x100
[  265.725910][ T6483]  ? __init_swait_queue_head+0xa8/0x150
[  265.725946][ T6483]  gfs2_sys_fs_add+0x257/0x480
[  265.725977][ T6483]  ? is_dynamic_key+0x1aa/0x1c0
[  265.726001][ T6483]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.726040][ T6483]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.726087][ T6483]  gfs2_fill_super+0x1368/0x20f0
[  265.726126][ T6483]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.726150][ T6483]  ? rt_spin_unlock+0x157/0x200
[  265.726176][ T6483]  ? sb_set_blocksize+0x11b/0x210
[  265.726207][ T6483]  ? setup_bdev_super+0x586/0x680
[  265.726237][ T6483]  get_tree_bdev_flags+0x430/0x4f0
[  265.726264][ T6483]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.726287][ T6483]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.726315][ T6483]  ? rcu_is_watching+0x15/0xb0
[  265.726340][ T6483]  gfs2_get_tree+0x51/0x1e0
[  265.726357][ T6483]  vfs_get_tree+0x92/0x2a0
[  265.726372][ T6483]  do_new_mount+0x319/0xdc0
[  265.726384][ T6483]  ? cap_capable+0x123/0x460
[  265.726402][ T6483]  ? __pfx_do_new_mount+0x10/0x10
[  265.726415][ T6483]  ? ns_capable+0x89/0xe0
[  265.726431][ T6483]  ? path_mount+0x647/0x1050
[  265.726445][ T6483]  ? user_path_at+0xd4/0x160
[  265.726460][ T6483]  __se_sys_mount+0x31d/0x420
[  265.726476][ T6483]  ? __pfx___se_sys_mount+0x10/0x10
[  265.726492][ T6483]  ? __x64_sys_mount+0x20/0xc0
[  265.726503][ T6483]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.726516][ T6483]  do_syscall_64+0x174/0x580
[  265.726531][ T6483]  ? trace_irq_disable+0x3b/0x140
[  265.726544][ T6483]  ? clear_bhb_loop+0x40/0x90
[  265.726558][ T6483]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.726570][ T6483] RIP: 0033:0x7f0ea603f0ca
[  265.726585][ T6483] 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
[  265.726595][ T6483] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.726609][ T6483] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  265.726618][ T6483] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  265.726625][ T6483] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  265.726633][ T6483] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  265.726640][ T6483] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  265.726659][ T6483]  </TASK>
[  265.726823][ T6483] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.726840][ T6483] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.990988][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  266.131499][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  266.475645][ T6486] loop1: detected capacity change from 0 to 32768
[  266.489378][ T6486] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.489402][ T6486] CPU: 1 UID: 0 PID: 6486 Comm: syz.1.215 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  266.489426][ T6486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  266.489439][ T6486] Call Trace:
[  266.489457][ T6486]  <TASK>
[  266.489466][ T6486]  dump_stack_lvl+0xe8/0x150
[  266.489506][ T6486]  sysfs_create_dir_ns+0x271/0x2a0
[  266.489533][ T6486]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  266.489570][ T6486]  ? rt_spin_unlock+0x163/0x200
[  266.489597][ T6486]  kobject_add_internal+0x62c/0xce0
[  266.489626][ T6486]  kobject_init_and_add+0x12b/0x1a0
[  266.489666][ T6486]  ? __pfx_kobject_init_and_add+0x10/0x10
[  266.489701][ T6486]  ? __raw_spin_lock_init+0x45/0x100
[  266.489726][ T6486]  ? __init_swait_queue_head+0xa8/0x150
[  266.489770][ T6486]  gfs2_sys_fs_add+0x257/0x480
[  266.489800][ T6486]  ? is_dynamic_key+0x1aa/0x1c0
[  266.489826][ T6486]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  266.489866][ T6486]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  266.489915][ T6486]  gfs2_fill_super+0x1368/0x20f0
[  266.489954][ T6486]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.489979][ T6486]  ? rt_spin_unlock+0x157/0x200
[  266.490006][ T6486]  ? sb_set_blocksize+0x11b/0x210
[  266.490037][ T6486]  ? setup_bdev_super+0x586/0x680
[  266.490069][ T6486]  get_tree_bdev_flags+0x430/0x4f0
[  266.490096][ T6486]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.490122][ T6486]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  266.490152][ T6486]  ? rcu_is_watching+0x15/0xb0
[  266.490188][ T6486]  gfs2_get_tree+0x51/0x1e0
[  266.490217][ T6486]  vfs_get_tree+0x92/0x2a0
[  266.490247][ T6486]  do_new_mount+0x319/0xdc0
[  266.490268][ T6486]  ? cap_capable+0x123/0x460
[  266.490294][ T6486]  ? __pfx_do_new_mount+0x10/0x10
[  266.490318][ T6486]  ? ns_capable+0x89/0xe0
[  266.490348][ T6486]  ? path_mount+0x647/0x1050
[  266.490374][ T6486]  ? user_path_at+0xd4/0x160
[  266.490401][ T6486]  __se_sys_mount+0x31d/0x420
[  266.490430][ T6486]  ? __pfx___se_sys_mount+0x10/0x10
[  266.490467][ T6486]  ? __x64_sys_mount+0x20/0xc0
[  266.490489][ T6486]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.490513][ T6486]  do_syscall_64+0x174/0x580
[  266.490540][ T6486]  ? trace_irq_disable+0x3b/0x140
[  266.490570][ T6486]  ? clear_bhb_loop+0x40/0x90
[  266.490597][ T6486]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.490618][ T6486] RIP: 0033:0x7f0ea603f0ca
[  266.490639][ T6486] 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
[  266.490657][ T6486] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.490681][ T6486] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  266.490697][ T6486] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  266.490711][ T6486] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  266.490726][ T6486] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  266.490740][ T6486] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  266.490775][ T6486]  </TASK>
[  266.580894][ T6486] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.580919][ T6486] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.622226][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  266.722910][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  267.133773][ T6489] loop1: detected capacity change from 0 to 32768
[  267.140363][ T6489] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.140389][ T6489] CPU: 0 UID: 0 PID: 6489 Comm: syz.1.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  267.140414][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  267.140426][ T6489] Call Trace:
[  267.140435][ T6489]  <TASK>
[  267.140444][ T6489]  dump_stack_lvl+0xe8/0x150
[  267.140481][ T6489]  sysfs_create_dir_ns+0x271/0x2a0
[  267.140508][ T6489]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.140536][ T6489]  ? rt_spin_unlock+0x163/0x200
[  267.140562][ T6489]  kobject_add_internal+0x62c/0xce0
[  267.140591][ T6489]  kobject_init_and_add+0x12b/0x1a0
[  267.140630][ T6489]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.140666][ T6489]  ? __raw_spin_lock_init+0x45/0x100
[  267.140690][ T6489]  ? __init_swait_queue_head+0xa8/0x150
[  267.140726][ T6489]  gfs2_sys_fs_add+0x257/0x480
[  267.140756][ T6489]  ? is_dynamic_key+0x1aa/0x1c0
[  267.140783][ T6489]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.140824][ T6489]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.140872][ T6489]  gfs2_fill_super+0x1368/0x20f0
[  267.140912][ T6489]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.140935][ T6489]  ? rt_spin_unlock+0x157/0x200
[  267.140972][ T6489]  ? sb_set_blocksize+0x11b/0x210
[  267.141004][ T6489]  ? setup_bdev_super+0x586/0x680
[  267.141034][ T6489]  get_tree_bdev_flags+0x430/0x4f0
[  267.141061][ T6489]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.141086][ T6489]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.141116][ T6489]  ? rcu_is_watching+0x15/0xb0
[  267.141152][ T6489]  gfs2_get_tree+0x51/0x1e0
[  267.141181][ T6489]  vfs_get_tree+0x92/0x2a0
[  267.141210][ T6489]  do_new_mount+0x319/0xdc0
[  267.141231][ T6489]  ? cap_capable+0x123/0x460
[  267.141258][ T6489]  ? __pfx_do_new_mount+0x10/0x10
[  267.141283][ T6489]  ? ns_capable+0x89/0xe0
[  267.141315][ T6489]  ? path_mount+0x647/0x1050
[  267.141339][ T6489]  ? user_path_at+0xd4/0x160
[  267.141365][ T6489]  __se_sys_mount+0x31d/0x420
[  267.141391][ T6489]  ? __pfx___se_sys_mount+0x10/0x10
[  267.141420][ T6489]  ? __x64_sys_mount+0x20/0xc0
[  267.141440][ T6489]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.141462][ T6489]  do_syscall_64+0x174/0x580
[  267.141489][ T6489]  ? trace_irq_disable+0x3b/0x140
[  267.141514][ T6489]  ? clear_bhb_loop+0x40/0x90
[  267.141541][ T6489]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.141563][ T6489] RIP: 0033:0x7f0ea603f0ca
[  267.141584][ T6489] 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
[  267.141602][ T6489] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.141625][ T6489] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  267.141641][ T6489] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  267.141656][ T6489] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  267.141670][ T6489] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  267.141684][ T6489] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  267.141719][ T6489]  </TASK>
[  267.146087][ T6489] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.146108][ T6489] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.352778][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  267.422885][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  267.792209][ T6492] loop1: detected capacity change from 0 to 32768
[  267.799900][ T6492] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.799924][ T6492] CPU: 1 UID: 0 PID: 6492 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  267.799948][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  267.799961][ T6492] Call Trace:
[  267.799970][ T6492]  <TASK>
[  267.799980][ T6492]  dump_stack_lvl+0xe8/0x150
[  267.800027][ T6492]  sysfs_create_dir_ns+0x271/0x2a0
[  267.800053][ T6492]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.800080][ T6492]  ? rt_spin_unlock+0x163/0x200
[  267.800107][ T6492]  kobject_add_internal+0x62c/0xce0
[  267.800136][ T6492]  kobject_init_and_add+0x12b/0x1a0
[  267.800173][ T6492]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.800215][ T6492]  ? __raw_spin_lock_init+0x45/0x100
[  267.800239][ T6492]  ? __init_swait_queue_head+0xa8/0x150
[  267.800275][ T6492]  gfs2_sys_fs_add+0x257/0x480
[  267.800306][ T6492]  ? is_dynamic_key+0x1aa/0x1c0
[  267.800331][ T6492]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.800373][ T6492]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.800422][ T6492]  gfs2_fill_super+0x1368/0x20f0
[  267.800463][ T6492]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.800486][ T6492]  ? rt_spin_unlock+0x157/0x200
[  267.800513][ T6492]  ? sb_set_blocksize+0x11b/0x210
[  267.800543][ T6492]  ? setup_bdev_super+0x586/0x680
[  267.800577][ T6492]  get_tree_bdev_flags+0x430/0x4f0
[  267.800604][ T6492]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.800630][ T6492]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.800660][ T6492]  ? rcu_is_watching+0x15/0xb0
[  267.800694][ T6492]  gfs2_get_tree+0x51/0x1e0
[  267.800724][ T6492]  vfs_get_tree+0x92/0x2a0
[  267.800753][ T6492]  do_new_mount+0x319/0xdc0
[  267.800774][ T6492]  ? cap_capable+0x123/0x460
[  267.800801][ T6492]  ? __pfx_do_new_mount+0x10/0x10
[  267.800824][ T6492]  ? ns_capable+0x89/0xe0
[  267.800853][ T6492]  ? path_mount+0x647/0x1050
[  267.800878][ T6492]  ? user_path_at+0xd4/0x160
[  267.800904][ T6492]  __se_sys_mount+0x31d/0x420
[  267.800933][ T6492]  ? __pfx___se_sys_mount+0x10/0x10
[  267.800960][ T6492]  ? __x64_sys_mount+0x20/0xc0
[  267.800981][ T6492]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.801005][ T6492]  do_syscall_64+0x174/0x580
[  267.801040][ T6492]  ? trace_irq_disable+0x3b/0x140
[  267.801063][ T6492]  ? clear_bhb_loop+0x40/0x90
[  267.801090][ T6492]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.801110][ T6492] RIP: 0033:0x7f0ea603f0ca
[  267.801132][ T6492] 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
[  267.801149][ T6492] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.801172][ T6492] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  267.801188][ T6492] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  267.801202][ T6492] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  267.801216][ T6492] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  267.801231][ T6492] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  267.801264][ T6492]  </TASK>
[  267.873196][ T6492] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.873217][ T6492] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.892635][ T6492] Flush: task=syz.1.217[6492] dev=loop1 state=2
[  268.031705][ T6492] Teardown: task=syz.1.217[6492] dev=loop1 state=2
2026/07/06 02:52:55 executed programs: 203
[  268.544637][ T6495] loop1: detected capacity change from 0 to 32768
[  268.572548][ T6495] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.572564][ T6495] CPU: 0 UID: 0 PID: 6495 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  268.572579][ T6495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  268.572586][ T6495] Call Trace:
[  268.572591][ T6495]  <TASK>
[  268.572596][ T6495]  dump_stack_lvl+0xe8/0x150
[  268.572620][ T6495]  sysfs_create_dir_ns+0x271/0x2a0
[  268.572636][ T6495]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.572651][ T6495]  ? rt_spin_unlock+0x163/0x200
[  268.572666][ T6495]  kobject_add_internal+0x62c/0xce0
[  268.572682][ T6495]  kobject_init_and_add+0x12b/0x1a0
[  268.572702][ T6495]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.572721][ T6495]  ? __raw_spin_lock_init+0x45/0x100
[  268.572735][ T6495]  ? __init_swait_queue_head+0xa8/0x150
[  268.572754][ T6495]  gfs2_sys_fs_add+0x257/0x480
[  268.572770][ T6495]  ? is_dynamic_key+0x1aa/0x1c0
[  268.572784][ T6495]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.572806][ T6495]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.572832][ T6495]  gfs2_fill_super+0x1368/0x20f0
[  268.572853][ T6495]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.572866][ T6495]  ? rt_spin_unlock+0x157/0x200
[  268.572880][ T6495]  ? sb_set_blocksize+0x11b/0x210
[  268.572906][ T6495]  ? setup_bdev_super+0x586/0x680
[  268.572923][ T6495]  get_tree_bdev_flags+0x430/0x4f0
[  268.572938][ T6495]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.572951][ T6495]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.572967][ T6495]  ? rcu_is_watching+0x15/0xb0
[  268.572985][ T6495]  gfs2_get_tree+0x51/0x1e0
[  268.573001][ T6495]  vfs_get_tree+0x92/0x2a0
[  268.573017][ T6495]  do_new_mount+0x319/0xdc0
[  268.573028][ T6495]  ? cap_capable+0x123/0x460
[  268.573042][ T6495]  ? __pfx_do_new_mount+0x10/0x10
[  268.573055][ T6495]  ? ns_capable+0x89/0xe0
[  268.573071][ T6495]  ? path_mount+0x647/0x1050
[  268.573084][ T6495]  ? user_path_at+0xd4/0x160
[  268.573099][ T6495]  __se_sys_mount+0x31d/0x420
[  268.573114][ T6495]  ? __pfx___se_sys_mount+0x10/0x10
[  268.573133][ T6495]  ? __x64_sys_mount+0x20/0xc0
[  268.573144][ T6495]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.573157][ T6495]  do_syscall_64+0x174/0x580
[  268.573171][ T6495]  ? trace_irq_disable+0x3b/0x140
[  268.573185][ T6495]  ? clear_bhb_loop+0x40/0x90
[  268.573200][ T6495]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.573211][ T6495] RIP: 0033:0x7f0ea603f0ca
[  268.573224][ T6495] 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
[  268.573234][ T6495] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.573248][ T6495] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  268.573256][ T6495] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  268.573264][ T6495] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  268.573271][ T6495] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  268.573279][ T6495] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  268.573297][ T6495]  </TASK>
[  268.573315][ T6495] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.573323][ T6495] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.698411][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  268.991628][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  269.189878][ T6498] loop1: detected capacity change from 0 to 32768
[  269.207993][ T6498] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.208019][ T6498] CPU: 0 UID: 0 PID: 6498 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  269.208057][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  269.208070][ T6498] Call Trace:
[  269.208080][ T6498]  <TASK>
[  269.208090][ T6498]  dump_stack_lvl+0xe8/0x150
[  269.208125][ T6498]  sysfs_create_dir_ns+0x271/0x2a0
[  269.208140][ T6498]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.208155][ T6498]  ? rt_spin_unlock+0x163/0x200
[  269.208170][ T6498]  kobject_add_internal+0x62c/0xce0
[  269.208187][ T6498]  kobject_init_and_add+0x12b/0x1a0
[  269.208207][ T6498]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.208226][ T6498]  ? __raw_spin_lock_init+0x45/0x100
[  269.208239][ T6498]  ? __init_swait_queue_head+0xa8/0x150
[  269.208296][ T6498]  gfs2_sys_fs_add+0x257/0x480
[  269.208314][ T6498]  ? is_dynamic_key+0x1aa/0x1c0
[  269.208328][ T6498]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.208350][ T6498]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.208376][ T6498]  gfs2_fill_super+0x1368/0x20f0
[  269.208398][ T6498]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.208411][ T6498]  ? rt_spin_unlock+0x157/0x200
[  269.208425][ T6498]  ? sb_set_blocksize+0x11b/0x210
[  269.208442][ T6498]  ? setup_bdev_super+0x586/0x680
[  269.208459][ T6498]  get_tree_bdev_flags+0x430/0x4f0
[  269.208473][ T6498]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.208487][ T6498]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.208503][ T6498]  ? rcu_is_watching+0x15/0xb0
[  269.208522][ T6498]  gfs2_get_tree+0x51/0x1e0
[  269.208539][ T6498]  vfs_get_tree+0x92/0x2a0
[  269.208558][ T6498]  do_new_mount+0x319/0xdc0
[  269.208569][ T6498]  ? cap_capable+0x123/0x460
[  269.208584][ T6498]  ? __pfx_do_new_mount+0x10/0x10
[  269.208597][ T6498]  ? ns_capable+0x89/0xe0
[  269.208621][ T6498]  ? path_mount+0x647/0x1050
[  269.208634][ T6498]  ? user_path_at+0xd4/0x160
[  269.208649][ T6498]  __se_sys_mount+0x31d/0x420
[  269.208664][ T6498]  ? __pfx___se_sys_mount+0x10/0x10
[  269.208680][ T6498]  ? __x64_sys_mount+0x20/0xc0
[  269.208692][ T6498]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.208705][ T6498]  do_syscall_64+0x174/0x580
[  269.208719][ T6498]  ? trace_irq_disable+0x3b/0x140
[  269.208733][ T6498]  ? clear_bhb_loop+0x40/0x90
[  269.208747][ T6498]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.208759][ T6498] RIP: 0033:0x7f0ea603f0ca
[  269.208772][ T6498] 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
[  269.208782][ T6498] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.208796][ T6498] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  269.208804][ T6498] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  269.208815][ T6498] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  269.208828][ T6498] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  269.208842][ T6498] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  269.208866][ T6498]  </TASK>
[  269.209383][ T6498] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.209403][ T6498] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.290903][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  269.381465][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  269.797712][ T6501] loop1: detected capacity change from 0 to 32768
[  269.809904][ T6501] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.809929][ T6501] CPU: 0 UID: 0 PID: 6501 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  269.809953][ T6501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  269.809965][ T6501] Call Trace:
[  269.809974][ T6501]  <TASK>
[  269.809983][ T6501]  dump_stack_lvl+0xe8/0x150
[  269.810021][ T6501]  sysfs_create_dir_ns+0x271/0x2a0
[  269.810047][ T6501]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.810075][ T6501]  ? rt_spin_unlock+0x163/0x200
[  269.810102][ T6501]  kobject_add_internal+0x62c/0xce0
[  269.810130][ T6501]  kobject_init_and_add+0x12b/0x1a0
[  269.810166][ T6501]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.810200][ T6501]  ? __raw_spin_lock_init+0x45/0x100
[  269.810224][ T6501]  ? __init_swait_queue_head+0xa8/0x150
[  269.810260][ T6501]  gfs2_sys_fs_add+0x257/0x480
[  269.810291][ T6501]  ? is_dynamic_key+0x1aa/0x1c0
[  269.810316][ T6501]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.810354][ T6501]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.810400][ T6501]  gfs2_fill_super+0x1368/0x20f0
[  269.810441][ T6501]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.810464][ T6501]  ? rt_spin_unlock+0x157/0x200
[  269.810491][ T6501]  ? sb_set_blocksize+0x11b/0x210
[  269.810522][ T6501]  ? setup_bdev_super+0x586/0x680
[  269.810554][ T6501]  get_tree_bdev_flags+0x430/0x4f0
[  269.810582][ T6501]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.810607][ T6501]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.810638][ T6501]  ? rcu_is_watching+0x15/0xb0
[  269.810673][ T6501]  gfs2_get_tree+0x51/0x1e0
[  269.810701][ T6501]  vfs_get_tree+0x92/0x2a0
[  269.810730][ T6501]  do_new_mount+0x319/0xdc0
[  269.810751][ T6501]  ? cap_capable+0x123/0x460
[  269.810777][ T6501]  ? __pfx_do_new_mount+0x10/0x10
[  269.810800][ T6501]  ? ns_capable+0x89/0xe0
[  269.810829][ T6501]  ? path_mount+0x647/0x1050
[  269.810863][ T6501]  ? user_path_at+0xd4/0x160
[  269.810891][ T6501]  __se_sys_mount+0x31d/0x420
[  269.810919][ T6501]  ? __pfx___se_sys_mount+0x10/0x10
[  269.810949][ T6501]  ? __x64_sys_mount+0x20/0xc0
[  269.810970][ T6501]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.810994][ T6501]  do_syscall_64+0x174/0x580
[  269.811020][ T6501]  ? trace_irq_disable+0x3b/0x140
[  269.811045][ T6501]  ? clear_bhb_loop+0x40/0x90
[  269.811074][ T6501]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.811094][ T6501] RIP: 0033:0x7f0ea603f0ca
[  269.811115][ T6501] 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
[  269.811130][ T6501] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.811152][ T6501] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  269.811167][ T6501] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  269.811182][ T6501] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  269.811197][ T6501] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  269.811211][ T6501] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  269.811245][ T6501]  </TASK>
[  269.816522][ T6501] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.816545][ T6501] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.933721][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  270.052422][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  270.479897][ T6504] loop1: detected capacity change from 0 to 32768
[  270.492781][ T6504] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.492807][ T6504] CPU: 1 UID: 0 PID: 6504 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  270.492832][ T6504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  270.492845][ T6504] Call Trace:
[  270.492853][ T6504]  <TASK>
[  270.492863][ T6504]  dump_stack_lvl+0xe8/0x150
[  270.492902][ T6504]  sysfs_create_dir_ns+0x271/0x2a0
[  270.492928][ T6504]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.492955][ T6504]  ? rt_spin_unlock+0x163/0x200
[  270.492982][ T6504]  kobject_add_internal+0x62c/0xce0
[  270.493012][ T6504]  kobject_init_and_add+0x12b/0x1a0
[  270.493051][ T6504]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.493085][ T6504]  ? __raw_spin_lock_init+0x45/0x100
[  270.493110][ T6504]  ? __init_swait_queue_head+0xa8/0x150
[  270.493153][ T6504]  gfs2_sys_fs_add+0x257/0x480
[  270.493181][ T6504]  ? is_dynamic_key+0x1aa/0x1c0
[  270.493207][ T6504]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.493248][ T6504]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.493296][ T6504]  gfs2_fill_super+0x1368/0x20f0
[  270.493335][ T6504]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.493359][ T6504]  ? rt_spin_unlock+0x157/0x200
[  270.493385][ T6504]  ? sb_set_blocksize+0x11b/0x210
[  270.493415][ T6504]  ? setup_bdev_super+0x586/0x680
[  270.493453][ T6504]  get_tree_bdev_flags+0x430/0x4f0
[  270.493480][ T6504]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.493505][ T6504]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.493535][ T6504]  ? rcu_is_watching+0x15/0xb0
[  270.493569][ T6504]  gfs2_get_tree+0x51/0x1e0
[  270.493599][ T6504]  vfs_get_tree+0x92/0x2a0
[  270.493628][ T6504]  do_new_mount+0x319/0xdc0
[  270.493649][ T6504]  ? cap_capable+0x123/0x460
[  270.493675][ T6504]  ? __pfx_do_new_mount+0x10/0x10
[  270.493698][ T6504]  ? ns_capable+0x89/0xe0
[  270.493727][ T6504]  ? path_mount+0x647/0x1050
[  270.493752][ T6504]  ? user_path_at+0xd4/0x160
[  270.493783][ T6504]  __se_sys_mount+0x31d/0x420
[  270.493812][ T6504]  ? __pfx___se_sys_mount+0x10/0x10
[  270.493841][ T6504]  ? __x64_sys_mount+0x20/0xc0
[  270.493862][ T6504]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.493885][ T6504]  do_syscall_64+0x174/0x580
[  270.493912][ T6504]  ? trace_irq_disable+0x3b/0x140
[  270.493937][ T6504]  ? clear_bhb_loop+0x40/0x90
[  270.493962][ T6504]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.493984][ T6504] RIP: 0033:0x7f0ea603f0ca
[  270.494005][ T6504] 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
[  270.494022][ T6504] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.494044][ T6504] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  270.494058][ T6504] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  270.494073][ T6504] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  270.494087][ T6504] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  270.494101][ T6504] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  270.494136][ T6504]  </TASK>
[  270.497270][ T6504] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.497291][ T6504] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.952445][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  271.041491][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  271.505292][ T6508] loop1: detected capacity change from 0 to 32768
[  271.518464][ T6508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.518490][ T6508] CPU: 0 UID: 0 PID: 6508 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  271.518514][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  271.518526][ T6508] Call Trace:
[  271.518534][ T6508]  <TASK>
[  271.518543][ T6508]  dump_stack_lvl+0xe8/0x150
[  271.518582][ T6508]  sysfs_create_dir_ns+0x271/0x2a0
[  271.518608][ T6508]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  271.518636][ T6508]  ? rt_spin_unlock+0x163/0x200
[  271.518662][ T6508]  kobject_add_internal+0x62c/0xce0
[  271.518690][ T6508]  kobject_init_and_add+0x12b/0x1a0
[  271.518728][ T6508]  ? __pfx_kobject_init_and_add+0x10/0x10
[  271.518761][ T6508]  ? __raw_spin_lock_init+0x45/0x100
[  271.518785][ T6508]  ? __init_swait_queue_head+0xa8/0x150
[  271.518817][ T6508]  gfs2_sys_fs_add+0x257/0x480
[  271.518848][ T6508]  ? is_dynamic_key+0x1aa/0x1c0
[  271.518873][ T6508]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  271.518918][ T6508]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  271.518963][ T6508]  gfs2_fill_super+0x1368/0x20f0
[  271.519001][ T6508]  ? __pfx_gfs2_fill_super+0x10/0x10
[  271.519024][ T6508]  ? rt_spin_unlock+0x157/0x200
[  271.519051][ T6508]  ? sb_set_blocksize+0x11b/0x210
[  271.519081][ T6508]  ? setup_bdev_super+0x586/0x680
[  271.519111][ T6508]  get_tree_bdev_flags+0x430/0x4f0
[  271.519138][ T6508]  ? __pfx_gfs2_fill_super+0x10/0x10
[  271.519164][ T6508]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  271.519194][ T6508]  ? rcu_is_watching+0x15/0xb0
[  271.519228][ T6508]  gfs2_get_tree+0x51/0x1e0
[  271.519258][ T6508]  vfs_get_tree+0x92/0x2a0
[  271.519286][ T6508]  do_new_mount+0x319/0xdc0
[  271.519306][ T6508]  ? cap_capable+0x123/0x460
[  271.519331][ T6508]  ? __pfx_do_new_mount+0x10/0x10
[  271.519356][ T6508]  ? ns_capable+0x89/0xe0
[  271.519386][ T6508]  ? path_mount+0x647/0x1050
[  271.519412][ T6508]  ? user_path_at+0xd4/0x160
[  271.519448][ T6508]  __se_sys_mount+0x31d/0x420
[  271.519475][ T6508]  ? __pfx___se_sys_mount+0x10/0x10
[  271.519504][ T6508]  ? __x64_sys_mount+0x20/0xc0
[  271.519523][ T6508]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  271.519565][ T6508]  do_syscall_64+0x174/0x580
[  271.519591][ T6508]  ? trace_irq_disable+0x3b/0x140
[  271.519616][ T6508]  ? clear_bhb_loop+0x40/0x90
[  271.519642][ T6508]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  271.519681][ T6508] RIP: 0033:0x7f0ea603f0ca
[  271.519702][ T6508] 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
[  271.519719][ T6508] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.519742][ T6508] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  271.519758][ T6508] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  271.519772][ T6508] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  271.519785][ T6508] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  271.519797][ T6508] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  271.519831][ T6508]  </TASK>
[  271.525092][ T6508] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.525113][ T6508] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.748393][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  271.921584][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  272.126576][ T6511] loop1: detected capacity change from 0 to 32768
[  272.140077][ T6511] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.140102][ T6511] CPU: 0 UID: 0 PID: 6511 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  272.140127][ T6511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  272.140140][ T6511] Call Trace:
[  272.140149][ T6511]  <TASK>
[  272.140158][ T6511]  dump_stack_lvl+0xe8/0x150
[  272.140197][ T6511]  sysfs_create_dir_ns+0x271/0x2a0
[  272.140224][ T6511]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.140252][ T6511]  ? rt_spin_unlock+0x163/0x200
[  272.140278][ T6511]  kobject_add_internal+0x62c/0xce0
[  272.140306][ T6511]  kobject_init_and_add+0x12b/0x1a0
[  272.140345][ T6511]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.140378][ T6511]  ? __raw_spin_lock_init+0x45/0x100
[  272.140402][ T6511]  ? __init_swait_queue_head+0xa8/0x150
[  272.140437][ T6511]  gfs2_sys_fs_add+0x257/0x480
[  272.140468][ T6511]  ? is_dynamic_key+0x1aa/0x1c0
[  272.140493][ T6511]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.140538][ T6511]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.140587][ T6511]  gfs2_fill_super+0x1368/0x20f0
[  272.140626][ T6511]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.140649][ T6511]  ? rt_spin_unlock+0x157/0x200
[  272.140675][ T6511]  ? sb_set_blocksize+0x11b/0x210
[  272.140704][ T6511]  ? setup_bdev_super+0x586/0x680
[  272.140733][ T6511]  get_tree_bdev_flags+0x430/0x4f0
[  272.140761][ T6511]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.140785][ T6511]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.140816][ T6511]  ? rcu_is_watching+0x15/0xb0
[  272.140850][ T6511]  gfs2_get_tree+0x51/0x1e0
[  272.140890][ T6511]  vfs_get_tree+0x92/0x2a0
[  272.140918][ T6511]  do_new_mount+0x319/0xdc0
[  272.140939][ T6511]  ? cap_capable+0x123/0x460
[  272.140966][ T6511]  ? __pfx_do_new_mount+0x10/0x10
[  272.140989][ T6511]  ? ns_capable+0x89/0xe0
[  272.141019][ T6511]  ? path_mount+0x647/0x1050
[  272.141043][ T6511]  ? user_path_at+0xd4/0x160
[  272.141070][ T6511]  __se_sys_mount+0x31d/0x420
[  272.141099][ T6511]  ? __pfx___se_sys_mount+0x10/0x10
[  272.141129][ T6511]  ? __x64_sys_mount+0x20/0xc0
[  272.141150][ T6511]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.141173][ T6511]  do_syscall_64+0x174/0x580
[  272.141199][ T6511]  ? trace_irq_disable+0x3b/0x140
[  272.141223][ T6511]  ? clear_bhb_loop+0x40/0x90
[  272.141250][ T6511]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.141271][ T6511] RIP: 0033:0x7f0ea603f0ca
[  272.141292][ T6511] 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
[  272.141307][ T6511] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.141329][ T6511] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  272.141344][ T6511] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  272.141358][ T6511] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  272.141371][ T6511] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  272.141384][ T6511] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  272.141417][ T6511]  </TASK>
[  272.168640][ T6511] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.168662][ T6511] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.313854][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  272.381577][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  272.759023][ T6514] loop1: detected capacity change from 0 to 32768
[  272.778201][ T6514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.778227][ T6514] CPU: 1 UID: 0 PID: 6514 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  272.778252][ T6514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  272.778264][ T6514] Call Trace:
[  272.778273][ T6514]  <TASK>
[  272.778282][ T6514]  dump_stack_lvl+0xe8/0x150
[  272.778320][ T6514]  sysfs_create_dir_ns+0x271/0x2a0
[  272.778347][ T6514]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.778375][ T6514]  ? rt_spin_unlock+0x163/0x200
[  272.778402][ T6514]  kobject_add_internal+0x62c/0xce0
[  272.778432][ T6514]  kobject_init_and_add+0x12b/0x1a0
[  272.778470][ T6514]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.778503][ T6514]  ? __raw_spin_lock_init+0x45/0x100
[  272.778526][ T6514]  ? __init_swait_queue_head+0xa8/0x150
[  272.778560][ T6514]  gfs2_sys_fs_add+0x257/0x480
[  272.778591][ T6514]  ? is_dynamic_key+0x1aa/0x1c0
[  272.778617][ T6514]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.778658][ T6514]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.778707][ T6514]  gfs2_fill_super+0x1368/0x20f0
[  272.778746][ T6514]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.778769][ T6514]  ? rt_spin_unlock+0x157/0x200
[  272.778796][ T6514]  ? sb_set_blocksize+0x11b/0x210
[  272.778824][ T6514]  ? setup_bdev_super+0x586/0x680
[  272.778852][ T6514]  get_tree_bdev_flags+0x430/0x4f0
[  272.778878][ T6514]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.778899][ T6514]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.778928][ T6514]  ? rcu_is_watching+0x15/0xb0
[  272.778963][ T6514]  gfs2_get_tree+0x51/0x1e0
[  272.778993][ T6514]  vfs_get_tree+0x92/0x2a0
[  272.779030][ T6514]  do_new_mount+0x319/0xdc0
[  272.779050][ T6514]  ? cap_capable+0x123/0x460
[  272.779076][ T6514]  ? __pfx_do_new_mount+0x10/0x10
[  272.779100][ T6514]  ? ns_capable+0x89/0xe0
[  272.779129][ T6514]  ? path_mount+0x647/0x1050
[  272.779153][ T6514]  ? user_path_at+0xd4/0x160
[  272.779180][ T6514]  __se_sys_mount+0x31d/0x420
[  272.779209][ T6514]  ? __pfx___se_sys_mount+0x10/0x10
[  272.779238][ T6514]  ? __x64_sys_mount+0x20/0xc0
[  272.779258][ T6514]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.779282][ T6514]  do_syscall_64+0x174/0x580
[  272.779308][ T6514]  ? trace_irq_disable+0x3b/0x140
[  272.779332][ T6514]  ? clear_bhb_loop+0x40/0x90
[  272.779359][ T6514]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.779380][ T6514] RIP: 0033:0x7f0ea603f0ca
[  272.779401][ T6514] 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
[  272.779419][ T6514] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.779443][ T6514] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  272.779459][ T6514] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  272.779473][ T6514] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  272.779492][ T6514] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  272.779505][ T6514] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  272.779563][ T6514]  </TASK>
[  272.781074][ T6514] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.781094][ T6514] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.017626][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  273.081416][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  273.393062][ T6517] loop1: detected capacity change from 0 to 32768
[  273.402835][ T6517] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.402858][ T6517] CPU: 1 UID: 0 PID: 6517 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  273.402879][ T6517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  273.402889][ T6517] Call Trace:
[  273.402898][ T6517]  <TASK>
[  273.402906][ T6517]  dump_stack_lvl+0xe8/0x150
[  273.402939][ T6517]  sysfs_create_dir_ns+0x271/0x2a0
[  273.402963][ T6517]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  273.402987][ T6517]  ? rt_spin_unlock+0x163/0x200
[  273.403011][ T6517]  kobject_add_internal+0x62c/0xce0
[  273.403037][ T6517]  kobject_init_and_add+0x12b/0x1a0
[  273.403070][ T6517]  ? __pfx_kobject_init_and_add+0x10/0x10
[  273.403100][ T6517]  ? __raw_spin_lock_init+0x45/0x100
[  273.403121][ T6517]  ? __init_swait_queue_head+0xa8/0x150
[  273.403151][ T6517]  gfs2_sys_fs_add+0x257/0x480
2026/07/06 02:53:00 executed programs: 212
[  273.403177][ T6517]  ? is_dynamic_key+0x1aa/0x1c0
[  273.403200][ T6517]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  273.403234][ T6517]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  273.403276][ T6517]  gfs2_fill_super+0x1368/0x20f0
[  273.403311][ T6517]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.403334][ T6517]  ? rt_spin_unlock+0x157/0x200
[  273.403369][ T6517]  ? sb_set_blocksize+0x11b/0x210
[  273.403396][ T6517]  ? setup_bdev_super+0x586/0x680
[  273.403423][ T6517]  get_tree_bdev_flags+0x430/0x4f0
[  273.403446][ T6517]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.403468][ T6517]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  273.403494][ T6517]  ? rcu_is_watching+0x15/0xb0
[  273.403524][ T6517]  gfs2_get_tree+0x51/0x1e0
[  273.403550][ T6517]  vfs_get_tree+0x92/0x2a0
[  273.403575][ T6517]  do_new_mount+0x319/0xdc0
[  273.403593][ T6517]  ? cap_capable+0x123/0x460
[  273.403625][ T6517]  ? __pfx_do_new_mount+0x10/0x10
[  273.403646][ T6517]  ? ns_capable+0x89/0xe0
[  273.403671][ T6517]  ? path_mount+0x647/0x1050
[  273.403693][ T6517]  ? user_path_at+0xd4/0x160
[  273.403724][ T6517]  __se_sys_mount+0x31d/0x420
[  273.403749][ T6517]  ? __pfx___se_sys_mount+0x10/0x10
[  273.403775][ T6517]  ? __x64_sys_mount+0x20/0xc0
[  273.403794][ T6517]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.403814][ T6517]  do_syscall_64+0x174/0x580
[  273.403856][ T6517]  ? trace_irq_disable+0x3b/0x140
[  273.403878][ T6517]  ? clear_bhb_loop+0x40/0x90
[  273.403901][ T6517]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.403919][ T6517] RIP: 0033:0x7f0ea603f0ca
[  273.403943][ T6517] 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
[  273.403958][ T6517] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.403978][ T6517] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  273.403992][ T6517] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  273.404005][ T6517] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  273.404018][ T6517] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  273.404030][ T6517] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  273.404060][ T6517]  </TASK>
[  273.405639][ T6517] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.405658][ T6517] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.616960][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  273.781493][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  274.027946][ T6520] loop1: detected capacity change from 0 to 32768
[  274.046819][ T6520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.046845][ T6520] CPU: 1 UID: 0 PID: 6520 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  274.046869][ T6520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  274.046880][ T6520] Call Trace:
[  274.046889][ T6520]  <TASK>
[  274.046898][ T6520]  dump_stack_lvl+0xe8/0x150
[  274.046937][ T6520]  sysfs_create_dir_ns+0x271/0x2a0
[  274.046976][ T6520]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  274.047005][ T6520]  ? rt_spin_unlock+0x163/0x200
[  274.047032][ T6520]  kobject_add_internal+0x62c/0xce0
[  274.047065][ T6520]  kobject_init_and_add+0x12b/0x1a0
[  274.047105][ T6520]  ? __pfx_kobject_init_and_add+0x10/0x10
[  274.047139][ T6520]  ? __raw_spin_lock_init+0x45/0x100
[  274.047163][ T6520]  ? __init_swait_queue_head+0xa8/0x150
[  274.047197][ T6520]  gfs2_sys_fs_add+0x257/0x480
[  274.047228][ T6520]  ? is_dynamic_key+0x1aa/0x1c0
[  274.047253][ T6520]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  274.047294][ T6520]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  274.047341][ T6520]  gfs2_fill_super+0x1368/0x20f0
[  274.047381][ T6520]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.047405][ T6520]  ? rt_spin_unlock+0x157/0x200
[  274.047432][ T6520]  ? sb_set_blocksize+0x11b/0x210
[  274.047472][ T6520]  ? setup_bdev_super+0x586/0x680
[  274.047503][ T6520]  get_tree_bdev_flags+0x430/0x4f0
[  274.047530][ T6520]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.047555][ T6520]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  274.047583][ T6520]  ? rcu_is_watching+0x15/0xb0
[  274.047616][ T6520]  gfs2_get_tree+0x51/0x1e0
[  274.047646][ T6520]  vfs_get_tree+0x92/0x2a0
[  274.047675][ T6520]  do_new_mount+0x319/0xdc0
[  274.047694][ T6520]  ? cap_capable+0x123/0x460
[  274.047718][ T6520]  ? __pfx_do_new_mount+0x10/0x10
[  274.047742][ T6520]  ? ns_capable+0x89/0xe0
[  274.047769][ T6520]  ? path_mount+0x647/0x1050
[  274.047792][ T6520]  ? user_path_at+0xd4/0x160
[  274.047819][ T6520]  __se_sys_mount+0x31d/0x420
[  274.047848][ T6520]  ? __pfx___se_sys_mount+0x10/0x10
[  274.047876][ T6520]  ? __x64_sys_mount+0x20/0xc0
[  274.047897][ T6520]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.047919][ T6520]  do_syscall_64+0x174/0x580
[  274.047944][ T6520]  ? trace_irq_disable+0x3b/0x140
[  274.047967][ T6520]  ? clear_bhb_loop+0x40/0x90
[  274.047993][ T6520]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.048014][ T6520] RIP: 0033:0x7f0ea603f0ca
[  274.048034][ T6520] 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
[  274.048050][ T6520] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.048073][ T6520] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  274.048088][ T6520] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  274.048102][ T6520] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  274.048116][ T6520] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  274.048129][ T6520] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  274.048164][ T6520]  </TASK>
[  274.048225][ T6520] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.048243][ T6520] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.233898][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  274.451801][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  274.670639][ T6523] loop1: detected capacity change from 0 to 32768
[  274.694491][ T6523] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.694510][ T6523] CPU: 0 UID: 0 PID: 6523 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  274.694525][ T6523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  274.694532][ T6523] Call Trace:
[  274.694537][ T6523]  <TASK>
[  274.694542][ T6523]  dump_stack_lvl+0xe8/0x150
[  274.694566][ T6523]  sysfs_create_dir_ns+0x271/0x2a0
[  274.694582][ T6523]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  274.694597][ T6523]  ? rt_spin_unlock+0x163/0x200
[  274.694612][ T6523]  kobject_add_internal+0x62c/0xce0
[  274.694627][ T6523]  kobject_init_and_add+0x12b/0x1a0
[  274.694648][ T6523]  ? __pfx_kobject_init_and_add+0x10/0x10
[  274.694666][ T6523]  ? __raw_spin_lock_init+0x45/0x100
[  274.694679][ T6523]  ? __init_swait_queue_head+0xa8/0x150
[  274.694698][ T6523]  gfs2_sys_fs_add+0x257/0x480
[  274.694715][ T6523]  ? is_dynamic_key+0x1aa/0x1c0
[  274.694729][ T6523]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  274.694750][ T6523]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  274.694775][ T6523]  gfs2_fill_super+0x1368/0x20f0
[  274.694796][ T6523]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.694808][ T6523]  ? rt_spin_unlock+0x157/0x200
[  274.694822][ T6523]  ? sb_set_blocksize+0x11b/0x210
[  274.694840][ T6523]  ? setup_bdev_super+0x586/0x680
[  274.694856][ T6523]  get_tree_bdev_flags+0x430/0x4f0
[  274.694878][ T6523]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.694891][ T6523]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  274.694907][ T6523]  ? rcu_is_watching+0x15/0xb0
[  274.694926][ T6523]  gfs2_get_tree+0x51/0x1e0
[  274.694942][ T6523]  vfs_get_tree+0x92/0x2a0
[  274.694957][ T6523]  do_new_mount+0x319/0xdc0
[  274.694969][ T6523]  ? cap_capable+0x123/0x460
[  274.694983][ T6523]  ? __pfx_do_new_mount+0x10/0x10
[  274.694996][ T6523]  ? ns_capable+0x89/0xe0
[  274.695012][ T6523]  ? path_mount+0x647/0x1050
[  274.695025][ T6523]  ? user_path_at+0xd4/0x160
[  274.695040][ T6523]  __se_sys_mount+0x31d/0x420
[  274.695055][ T6523]  ? __pfx___se_sys_mount+0x10/0x10
[  274.695070][ T6523]  ? __x64_sys_mount+0x20/0xc0
[  274.695082][ T6523]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.695095][ T6523]  do_syscall_64+0x174/0x580
[  274.695109][ T6523]  ? trace_irq_disable+0x3b/0x140
[  274.695122][ T6523]  ? clear_bhb_loop+0x40/0x90
[  274.695137][ T6523]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.695148][ T6523] RIP: 0033:0x7f0ea603f0ca
[  274.695161][ T6523] 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
[  274.695171][ T6523] RSP: 002b:00007fff4aaf2768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.695185][ T6523] RAX: ffffffffffffffda RBX: 00007fff4aaf27f0 RCX: 00007f0ea603f0ca
[  274.695194][ T6523] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007fff4aaf27b0
[  274.695201][ T6523] RBP: 000020000001f680 R08: 00007fff4aaf27f0 R09: 0000000000000084
[  274.695209][ T6523] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  274.695217][ T6523] R13: 00007fff4aaf27b0 R14: 000000000001f791 R15: 0000200000000000
[  274.695235][ T6523]  </TASK>
[  274.695252][ T6523] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.695261][ T6523] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.819583][ T5852] Flush: task=udevd[5852] dev=loop1 state=2
[  275.011487][ T5852] Teardown: task=udevd[5852] dev=loop1 state=2
[  275.151541][   T39] INFO: task kworker/0:0:9 blocked in I/O wait for more than 143 seconds.
[  275.151570][   T39]       Not tainted syzkaller #0
[  275.151582][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  275.151591][   T39] task:kworker/0:0     state:D stack:22496 pid:9     tgid:9     ppid:2      task_flags:0x4208060 flags:0x00080000
[  275.151651][   T39] Workqueue: gfs2_recovery gfs2_recover_func
[  275.151679][   T39] Call Trace:
[  275.151687][   T39]  <TASK>
[  275.151701][   T39]  __schedule+0x1709/0x5530
[  275.151748][   T39]  ? __pfx___schedule+0x10/0x10
[  275.151777][   T39]  ? schedule+0x90/0x2b0
[  275.151800][   T39]  schedule+0x164/0x2b0
[  275.151823][   T39]  io_schedule+0x7f/0xd0
[  275.151845][   T39]  folio_wait_bit_common+0x83c/0xbc0
[  275.151898][   T39]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  275.151926][   T39]  ? __pfx_wake_page_function+0x10/0x10
[  275.151974][   T39]  gfs2_jhead_process_page+0x17f/0x670
[  275.152014][   T39]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  275.152062][   T39]  gfs2_find_jhead+0xbe0/0xd20
[  275.152115][   T39]  gfs2_recover_func+0x6bd/0x1f00
[  275.152149][   T39]  ? __lock_acquire+0x6df/0x2e40
[  275.152181][   T39]  ? __pfx_gfs2_recover_func+0x10/0x10
[  275.152206][   T39]  ? __lock_acquire+0x6df/0x2e40
[  275.152230][   T39]  ? look_up_lock_class+0x57/0x110
[  275.152259][   T39]  ? register_lock_class+0x31/0x2e0
[  275.152287][   T39]  ? __lock_acquire+0x6df/0x2e40
[  275.152325][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  275.152368][   T39]  ? rcu_is_watching+0x15/0xb0
[  275.152397][   T39]  ? process_one_work+0x7fd/0x1480
[  275.152426][   T39]  process_one_work+0xaaf/0x1480
[  275.152453][   T39]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  275.152496][   T39]  ? __pfx_process_one_work+0x10/0x10
[  275.152521][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  275.152550][   T39]  ? assign_work+0x3cf/0x5d0
[  275.152584][   T39]  worker_thread+0xb05/0x10d0
[  275.152639][   T39]  kthread+0x388/0x470
[  275.152661][   T39]  ? __pfx_worker_thread+0x10/0x10
[  275.152687][   T39]  ? __pfx_kthread+0x10/0x10
[  275.152710][   T39]  ret_from_fork+0x514/0xb70
[  275.152736][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  275.152759][   T39]  ? __switch_to+0xc89/0x1420
[  275.152792][   T39]  ? __pfx_kthread+0x10/0x10
[  275.152815][   T39]  ret_from_fork_asm+0x1a/0x30
[  275.152855][   T39]  </TASK>
[  275.153012][   T39] INFO: task syz.0.18:5841 blocked for more than 143 seconds.
[  275.153031][   T39]       Not tainted syzkaller #0
[  275.153042][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  275.153052][   T39] task:syz.0.18        state:D stack:25192 pid:5841  tgid:5841  ppid:5735   task_flags:0x400140 flags:0x00080002
[  275.153117][   T39] Call Trace:
[  275.153125][   T39]  <TASK>
[  275.153137][   T39]  __schedule+0x1709/0x5530
[  275.153197][   T39]  ? __pfx___schedule+0x10/0x10
[  275.153235][   T39]  ? schedule+0x90/0x2b0
[  275.153266][   T39]  schedule+0x164/0x2b0
[  275.153294][   T39]  bit_wait+0x11/0xd0
[  275.153324][   T39]  __wait_on_bit+0xac/0x2f0
[  275.153351][   T39]  ? __pfx_bit_wait+0x10/0x10
[  275.153381][   T39]  out_of_line_wait_on_bit+0x13b/0x190
[  275.153418][   T39]  ? __pfx_bit_wait+0x10/0x10
[  275.153446][   T39]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  275.153478][   T39]  ? __pfx_wake_bit_function+0x10/0x10
[  275.153522][   T39]  gfs2_recover_journal+0xda/0x140
[  275.153550][   T39]  init_journal+0x1af4/0x2330
[  275.153589][   T39]  ? init_inodes+0xdb/0x320
[  275.153620][   T39]  ? __pfx_init_journal+0x10/0x10
[  275.153662][   T39]  ? snprintf+0xe8/0x140
[  275.153688][   T39]  ? init_inodes+0xdb/0x320
[  275.153714][   T39]  ? __pfx_snprintf+0x10/0x10
[  275.153740][   T39]  ? gfs2_glock_nq_num+0x13d/0x170
[  275.153773][   T39]  init_inodes+0xdb/0x320
[  275.153802][   T39]  gfs2_fill_super+0x1982/0x20f0
[  275.153844][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.153877][   T39]  ? rt_spin_unlock+0x157/0x200
[  275.153904][   T39]  ? init_locking+0xb8/0x210
[  275.153928][   T39]  ? sb_set_blocksize+0x11b/0x210
[  275.153960][   T39]  ? setup_bdev_super+0x586/0x680
[  275.154000][   T39]  get_tree_bdev_flags+0x430/0x4f0
[  275.154029][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.154056][   T39]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  275.154087][   T39]  ? rcu_is_watching+0x15/0xb0
[  275.154123][   T39]  gfs2_get_tree+0x51/0x1e0
[  275.154153][   T39]  vfs_get_tree+0x92/0x2a0
[  275.154184][   T39]  do_new_mount+0x319/0xdc0
[  275.154206][   T39]  ? cap_capable+0x123/0x460
[  275.154233][   T39]  ? __pfx_do_new_mount+0x10/0x10
[  275.154259][   T39]  ? ns_capable+0x89/0xe0
[  275.154289][   T39]  ? path_mount+0x647/0x1050
[  275.154315][   T39]  ? user_path_at+0xd4/0x160
[  275.154343][   T39]  __se_sys_mount+0x31d/0x420
[  275.154371][   T39]  ? __pfx___se_sys_mount+0x10/0x10
[  275.154401][   T39]  ? __x64_sys_mount+0x20/0xc0
[  275.154423][   T39]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.154448][   T39]  do_syscall_64+0x174/0x580
[  275.154474][   T39]  ? trace_irq_disable+0x3b/0x140
[  275.154501][   T39]  ? clear_bhb_loop+0x40/0x90
[  275.154528][   T39]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.154551][   T39] RIP: 0033:0x7f8fe7d2f0ca
[  275.154572][   T39] RSP: 002b:00007ffcaa994a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.154602][   T39] RAX: ffffffffffffffda RBX: 00007ffcaa994a90 RCX: 00007f8fe7d2f0ca
[  275.154618][   T39] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcaa994a50
[  275.154634][   T39] RBP: 000020000001f680 R08: 00007ffcaa994a90 R09: 0000000000000084
[  275.154649][   T39] R10: 0000000000000084 R11: 0000000000000246 R12: 000020000001f6c0
[  275.154664][   T39] R13: 00007ffcaa994a50 R14: 000000000001f791 R15: 0000200000000000
[  275.154700][   T39]  </TASK>
[  275.154716][   T39] 
[  275.154716][   T39] Showing all locks held in the system:
[  275.154727][   T39] 2 locks held by kworker/0:0/9:
[  275.154739][   T39]  #0: ffff88801f76b938 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  275.154797][   T39]  #1: ffffc900000e7c60 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  275.154856][   T39] 1 lock held by khungtaskd/39:
[  275.154876][   T39]  #0: ffffffff8e1c37c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  275.154948][   T39] 2 locks held by getty/5353:
[  275.154959][   T39]  #0: ffff888035ddd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  275.155014][   T39]  #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360
[  275.155065][   T39] 1 lock held by syz.0.18/5841:
[  275.155077][   T39]  #0: ffff888035dea0e0 (&type->s_umount_key#53/1){+.+.}-{4:4}, at: sget_fc+0x97c/0x1a60
[  275.155137][   T39] 4 locks held by udevd/5852:
[  275.155149][   T39]  #0: ffff8880b873b920 (&rq->__lock){-...}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160
[  275.155699][   T39]  #1: ffff8880b8724540 (psi_seq){-...}-{0:0}, at: psi_task_switch+0x57/0x7d0
[  275.155749][   T39]  #2: ffffffff99acf788 (&____s->seqcount#2){--..}-{0:0}, at: ktime_expiry_to_cycles+0x4e/0x1e0
[  275.155800][   T39]  #3: ffffffff8e1c37c0 (rcu_read_lock){....}-{1:3}, at: mod_memcg_lruvec_state+0xd5/0x270
[  275.155852][   T39] 3 locks held by syz.1.229/6526:
[  275.155874][   T39]  #0: ffff88801beaa510 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0
[  275.155931][   T39]  #1: ffff888037ebc710 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  275.155988][   T39]  #2: ffffffff8e1c37c0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x8f/0x2550
[  275.156044][   T39] 
[  275.156050][   T39] =============================================
[  275.156050][   T39] 
[  275.156061][   T39] NMI backtrace for cpu 0
[  275.156077][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  275.156102][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  275.156114][   T39] Call Trace:
[  275.156123][   T39]  <TASK>
[  275.156132][   T39]  dump_stack_lvl+0xe8/0x150
[  275.156166][   T39]  nmi_cpu_backtrace+0x274/0x2d0
[  275.156190][   T39]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  275.156225][   T39]  nmi_trigger_cpumask_backtrace+0x17a/0x380
[  275.156253][   T39]  sys_info+0x135/0x170
[  275.156273][   T39]  watchdog+0xfd7/0x1030
[  275.156306][   T39]  ? watchdog+0x1c7/0x1030
[  275.156336][   T39]  kthread+0x388/0x470
[  275.156357][   T39]  ? __pfx_watchdog+0x10/0x10
[  275.156377][   T39]  ? __pfx_kthread+0x10/0x10
[  275.156399][   T39]  ret_from_fork+0x514/0xb70
[  275.156423][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  275.156445][   T39]  ? __switch_to+0xc89/0x1420
[  275.156477][   T39]  ? __pfx_kthread+0x10/0x10
[  275.156500][   T39]  ret_from_fork_asm+0x1a/0x30
[  275.156536][   T39]  </TASK>
[  275.156545][   T39] Sending NMI from CPU 0 to CPUs 1:
[  275.156576][    C1] NMI backtrace for cpu 1
[  275.156591][    C1] CPU: 1 UID: 0 PID: 5852 Comm: udevd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  275.156611][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  275.156621][    C1] RIP: 0010:__lock_acquire+0x875/0x2e40
[  275.156644][    C1] Code: 00 41 c1 ec 03 41 81 e4 00 60 00 00 48 89 d9 48 c1 e9 20 29 c8 44 01 e0 89 ca c1 c2 04 31 c2 01 d9 29 d3 89 d0 c1 c0 06 31 d8 <01> ca 29 c1 89 c6 c1 c6 08 31 ce 01 d0 29 f2 89 f3 c1 c3 10 31 d3
[  275.156659][    C1] RSP: 0018:ffffc90003d072a0 EFLAGS: 00000086
[  275.156675][    C1] RAX: 00000000ffefbcf3 RBX: 000000000000400c RCX: 00000000fffffffe
[  275.156688][    C1] RDX: 00000000ffffbff3 RSI: ffff888036cfab18 RDI: ffff888036cf9f00
[  275.156701][    C1] RBP: 0000000000000000 R08: 0600000000000000 R09: 0000000000000000
[  275.156713][    C1] R10: 0000000000000000 R11: ffffffff8e1c37c0 R12: 0000000000004000
[  275.156724][    C1] R13: 0000000000000000 R14: ffff888036cfab18 R15: 0000000000000000
[  275.156735][    C1] FS:  00007f4cd462f880(0000) GS:ffff888125d49000(0000) knlGS:0000000000000000
[  275.156750][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  275.156763][    C1] CR2: 00007f4cd3cce000 CR3: 00000000428de000 CR4: 00000000003526f0
[  275.156780][    C1] Call Trace:
[  275.156786][    C1]  <TASK>
[  275.156795][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  275.156814][    C1]  ? stack_depot_save_flags+0x33/0x800
[  275.156841][    C1]  ? lock_acquire+0x115/0x350
[  275.156861][    C1]  lock_acquire+0x115/0x350
[  275.156879][    C1]  ? __page_table_check_zero+0x6c/0x430
[  275.156905][    C1]  ? __update_page_owner_free_handle+0x2e/0x4a0
[  275.156923][    C1]  ? __page_table_check_zero+0x6c/0x430
[  275.156946][    C1]  __page_table_check_zero+0x89/0x430
[  275.156969][    C1]  ? __page_table_check_zero+0x6c/0x430
[  275.156992][    C1]  ? __reset_page_owner+0x148/0x1f0
[  275.157021][    C1]  free_unref_folios+0xd31/0x19f0
[  275.157052][    C1]  folios_put_refs+0x815/0x920
[  275.157076][    C1]  ? __pfx_folios_put_refs+0x10/0x10
[  275.157096][    C1]  ? folio_batch_remove_exceptionals+0x183/0x1f0
[  275.157118][    C1]  shmem_undo_range+0x4e6/0x15d0
[  275.157145][    C1]  ? __pfx_shmem_undo_range+0x10/0x10
[  275.157174][    C1]  ? __lock_acquire+0x6df/0x2e40
[  275.157201][    C1]  ? do_raw_spin_lock+0x12b/0x2f0
[  275.157222][    C1]  shmem_evict_inode+0x280/0xa80
[  275.157239][    C1]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  275.157259][    C1]  ? rt_mutex_slowunlock+0x4ee/0xa20
[  275.157278][    C1]  ? reacquire_held_locks+0x117/0x1a0
[  275.157299][    C1]  ? __pfx_shmem_evict_inode+0x10/0x10
[  275.157318][    C1]  ? rt_spin_unlock+0x157/0x200
[  275.157336][    C1]  ? rt_spin_unlock+0x163/0x200
[  275.157352][    C1]  ? __pfx_shmem_evict_inode+0x10/0x10
[  275.157376][    C1]  evict+0x624/0xb50
[  275.157400][    C1]  ? __pfx_evict+0x10/0x10
[  275.157421][    C1]  ? rt_spin_unlock+0x163/0x200
[  275.157438][    C1]  ? iput+0xb84/0xf00
[  275.157456][    C1]  dentry_kill+0x1b9/0x880
[  275.157479][    C1]  finish_dput+0x1a/0x260
[  275.157496][    C1]  __fput+0x699/0xa80
[  275.157514][    C1]  task_work_run+0x1d9/0x270
[  275.157532][    C1]  ? __pfx_task_work_run+0x10/0x10
[  275.157548][    C1]  ? fput_close_sync+0x11f/0x240
[  275.157567][    C1]  exit_to_user_mode_loop+0x1fa/0x730
[  275.157586][    C1]  ? rcu_is_watching+0x15/0xb0
[  275.157608][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.157626][    C1]  do_syscall_64+0x353/0x580
[  275.157648][    C1]  ? clear_bhb_loop+0x40/0x90
[  275.157667][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.157683][    C1] RIP: 0033:0x7f4cd471d407
[  275.157699][    C1] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[  275.157713][    C1] RSP: 002b:00007ffc671cad70 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
[  275.157730][    C1] RAX: 0000000000000000 RBX: 00007f4cd462f880 RCX: 00007f4cd471d407
[  275.157742][    C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
[  275.157752][    C1] RBP: 00007f4cd462f6e8 R08: 0000000000000000 R09: 0000000000000000
[  275.157763][    C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[  275.157774][    C1] R13: 000055f21d057190 R14: 0000000000000008 R15: 000055f21d12f590
[  275.157792][    C1]  </TASK>
[  275.160063][   T39] Kernel panic - not syncing: hung_task: blocked tasks
[  275.160081][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  275.160105][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  275.160117][   T39] Call Trace:
[  275.160126][   T39]  <TASK>
[  275.160134][   T39]  vpanic+0x56c/0xa60
[  275.160158][   T39]  ? __pfx___schedule+0x10/0x10
[  275.160184][   T39]  ? __pfx_vpanic+0x10/0x10
[  275.160215][   T39]  panic+0xc5/0xd0
[  275.160235][   T39]  ? __pfx_panic+0x10/0x10
[  275.160254][   T39]  ? preempt_schedule_common+0x82/0xd0
[  275.160281][   T39]  ? preempt_schedule_thunk+0x16/0x40
[  275.160309][   T39]  ? nmi_trigger_cpumask_backtrace+0x314/0x380
[  275.160335][   T39]  ? nmi_trigger_cpumask_backtrace+0x319/0x380
[  275.160363][   T39]  watchdog+0x1030/0x1030
[  275.160394][   T39]  ? watchdog+0x1c7/0x1030
[  275.160424][   T39]  kthread+0x388/0x470
[  275.160445][   T39]  ? __pfx_watchdog+0x10/0x10
[  275.160467][   T39]  ? __pfx_kthread+0x10/0x10
[  275.160489][   T39]  ret_from_fork+0x514/0xb70
[  275.160513][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  275.160533][   T39]  ? __switch_to+0xc89/0x1420
[  275.160565][   T39]  ? __pfx_kthread+0x10/0x10
[  275.160588][   T39]  ret_from_fork_asm+0x1a/0x30
[  275.160624][   T39]  </TASK>
[  275.160778][   T39] Kernel Offset: disabled