ot tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  305.722925][ T6578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  305.722934][ T6578] Call Trace:
[  305.722941][ T6578]  <TASK>
[  305.722948][ T6578]  dump_stack_lvl+0xe8/0x150
[  305.722977][ T6578]  sysfs_create_dir_ns+0x271/0x2a0
[  305.723001][ T6578]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  305.723028][ T6578]  ? rt_spin_unlock+0x163/0x200
[  305.723045][ T6578]  kobject_add_internal+0x62c/0xce0
[  305.723073][ T6578]  kobject_init_and_add+0x12b/0x1a0
[  305.723098][ T6578]  ? __pfx_kobject_init_and_add+0x10/0x10
[  305.723121][ T6578]  ? __raw_spin_lock_init+0x45/0x100
[  305.723139][ T6578]  ? __init_swait_queue_head+0xa8/0x150
[  305.723165][ T6578]  gfs2_sys_fs_add+0x257/0x480
[  305.723184][ T6578]  ? is_dynamic_key+0x1aa/0x1c0
[  305.723205][ T6578]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  305.723242][ T6578]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  305.723274][ T6578]  gfs2_fill_super+0x1368/0x20f0
[  305.723303][ T6578]  ? __pfx_gfs2_fill_super+0x10/0x10
[  305.723320][ T6578]  ? rt_spin_unlock+0x157/0x200
[  305.723338][ T6578]  ? sb_set_blocksize+0x11b/0x210
[  305.723355][ T6578]  ? setup_bdev_super+0x586/0x680
[  305.723382][ T6578]  get_tree_bdev_flags+0x430/0x4f0
[  305.723401][ T6578]  ? __pfx_gfs2_fill_super+0x10/0x10
[  305.723422][ T6578]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  305.723447][ T6578]  ? rcu_is_watching+0x15/0xb0
[  305.723473][ T6578]  gfs2_get_tree+0x51/0x1e0
[  305.723496][ T6578]  vfs_get_tree+0x92/0x2a0
[  305.723520][ T6578]  do_new_mount+0x319/0xdc0
[  305.723539][ T6578]  ? cap_capable+0x123/0x460
[  305.723559][ T6578]  ? __pfx_do_new_mount+0x10/0x10
[  305.723576][ T6578]  ? ns_capable+0x89/0xe0
[  305.723595][ T6578]  ? path_mount+0x647/0x1050
[  305.723614][ T6578]  ? user_path_at+0xd4/0x160
[  305.723641][ T6578]  __se_sys_mount+0x31d/0x420
[  305.723666][ T6578]  ? __pfx___se_sys_mount+0x10/0x10
[  305.723692][ T6578]  ? __x64_sys_mount+0x20/0xc0
[  305.723711][ T6578]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  305.723731][ T6578]  do_syscall_64+0x174/0x580
[  305.723751][ T6578]  ? trace_irq_disable+0x3b/0x140
[  305.723768][ T6578]  ? clear_bhb_loop+0x40/0x90
[  305.723786][ T6578]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  305.723799][ T6578] RIP: 0033:0x7faedc0df0ca
[  305.723813][ T6578] 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
[  305.723826][ T6578] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  305.723842][ T6578] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  305.723852][ T6578] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  305.723863][ T6578] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  305.723874][ T6578] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  305.723883][ T6578] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  305.723909][ T6578]  </TASK>
[  305.724038][ T6578] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  305.724054][ T6578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.042051][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  306.116481][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  306.257068][ T6581] loop1: detected capacity change from 0 to 32768
[  306.271949][ T6581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.271969][ T6581] CPU: 0 UID: 0 PID: 6581 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  306.271990][ T6581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  306.272001][ T6581] Call Trace:
[  306.272009][ T6581]  <TASK>
[  306.272017][ T6581]  dump_stack_lvl+0xe8/0x150
[  306.272048][ T6581]  sysfs_create_dir_ns+0x271/0x2a0
[  306.272075][ T6581]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  306.272101][ T6581]  ? rt_spin_unlock+0x163/0x200
[  306.272122][ T6581]  kobject_add_internal+0x62c/0xce0
[  306.272155][ T6581]  kobject_init_and_add+0x12b/0x1a0
[  306.272184][ T6581]  ? __pfx_kobject_init_and_add+0x10/0x10
[  306.272211][ T6581]  ? __raw_spin_lock_init+0x45/0x100
[  306.272233][ T6581]  ? __init_swait_queue_head+0xa8/0x150
[  306.272261][ T6581]  gfs2_sys_fs_add+0x257/0x480
[  306.272281][ T6581]  ? is_dynamic_key+0x1aa/0x1c0
[  306.272301][ T6581]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  306.272330][ T6581]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  306.272370][ T6581]  gfs2_fill_super+0x1368/0x20f0
[  306.272406][ T6581]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.272429][ T6581]  ? rt_spin_unlock+0x157/0x200
[  306.272450][ T6581]  ? sb_set_blocksize+0x11b/0x210
[  306.272471][ T6581]  ? setup_bdev_super+0x586/0x680
[  306.272498][ T6581]  get_tree_bdev_flags+0x430/0x4f0
[  306.272524][ T6581]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.272549][ T6581]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  306.272576][ T6581]  ? rcu_is_watching+0x15/0xb0
[  306.272603][ T6581]  gfs2_get_tree+0x51/0x1e0
[  306.272631][ T6581]  vfs_get_tree+0x92/0x2a0
[  306.272657][ T6581]  do_new_mount+0x319/0xdc0
[  306.272679][ T6581]  ? cap_capable+0x123/0x460
[  306.272704][ T6581]  ? __pfx_do_new_mount+0x10/0x10
[  306.272737][ T6581]  ? ns_capable+0x89/0xe0
[  306.272761][ T6581]  ? path_mount+0x647/0x1050
[  306.272785][ T6581]  ? user_path_at+0xd4/0x160
[  306.272810][ T6581]  __se_sys_mount+0x31d/0x420
[  306.272837][ T6581]  ? __pfx___se_sys_mount+0x10/0x10
[  306.272865][ T6581]  ? __x64_sys_mount+0x20/0xc0
[  306.272886][ T6581]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.272906][ T6581]  do_syscall_64+0x174/0x580
[  306.272927][ T6581]  ? trace_irq_disable+0x3b/0x140
[  306.272949][ T6581]  ? clear_bhb_loop+0x40/0x90
[  306.272971][ T6581]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.272989][ T6581] RIP: 0033:0x7faedc0df0ca
[  306.273006][ T6581] 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
[  306.273022][ T6581] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.273042][ T6581] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  306.273055][ T6581] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  306.273069][ T6581] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  306.273082][ T6581] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  306.273098][ T6581] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  306.273127][ T6581]  </TASK>
[  306.273151][ T6581] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.273166][ T6581] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.483371][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  306.547951][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  306.834393][ T6584] loop1: detected capacity change from 0 to 32768
[  306.849918][ T6584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.849939][ T6584] CPU: 0 UID: 0 PID: 6584 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  306.849961][ T6584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  306.849971][ T6584] Call Trace:
[  306.849978][ T6584]  <TASK>
[  306.849987][ T6584]  dump_stack_lvl+0xe8/0x150
[  306.850020][ T6584]  sysfs_create_dir_ns+0x271/0x2a0
[  306.850045][ T6584]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  306.850074][ T6584]  ? rt_spin_unlock+0x163/0x200
[  306.850096][ T6584]  kobject_add_internal+0x62c/0xce0
[  306.850128][ T6584]  kobject_init_and_add+0x12b/0x1a0
[  306.850158][ T6584]  ? __pfx_kobject_init_and_add+0x10/0x10
[  306.850184][ T6584]  ? __raw_spin_lock_init+0x45/0x100
[  306.850204][ T6584]  ? __init_swait_queue_head+0xa8/0x150
[  306.850234][ T6584]  gfs2_sys_fs_add+0x257/0x480
[  306.850254][ T6584]  ? is_dynamic_key+0x1aa/0x1c0
[  306.850274][ T6584]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  306.850302][ T6584]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  306.850340][ T6584]  gfs2_fill_super+0x1368/0x20f0
[  306.850376][ T6584]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.850399][ T6584]  ? rt_spin_unlock+0x157/0x200
[  306.850421][ T6584]  ? sb_set_blocksize+0x11b/0x210
[  306.850442][ T6584]  ? setup_bdev_super+0x586/0x680
[  306.850470][ T6584]  get_tree_bdev_flags+0x430/0x4f0
[  306.850496][ T6584]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.850520][ T6584]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  306.850547][ T6584]  ? rcu_is_watching+0x15/0xb0
[  306.850576][ T6584]  gfs2_get_tree+0x51/0x1e0
[  306.850604][ T6584]  vfs_get_tree+0x92/0x2a0
[  306.850639][ T6584]  do_new_mount+0x319/0xdc0
[  306.850660][ T6584]  ? cap_capable+0x123/0x460
[  306.850685][ T6584]  ? __pfx_do_new_mount+0x10/0x10
[  306.850709][ T6584]  ? ns_capable+0x89/0xe0
[  306.850734][ T6584]  ? path_mount+0x647/0x1050
[  306.850759][ T6584]  ? user_path_at+0xd4/0x160
[  306.850786][ T6584]  __se_sys_mount+0x31d/0x420
[  306.850814][ T6584]  ? __pfx___se_sys_mount+0x10/0x10
[  306.850841][ T6584]  ? __x64_sys_mount+0x20/0xc0
[  306.850862][ T6584]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.850882][ T6584]  do_syscall_64+0x174/0x580
[  306.850904][ T6584]  ? trace_irq_disable+0x3b/0x140
[  306.850926][ T6584]  ? clear_bhb_loop+0x40/0x90
[  306.850949][ T6584]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.850966][ T6584] RIP: 0033:0x7faedc0df0ca
[  306.850984][ T6584] 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
[  306.850999][ T6584] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.851019][ T6584] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  306.851033][ T6584] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  306.851046][ T6584] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  306.851059][ T6584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  306.851071][ T6584] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  306.851100][ T6584]  </TASK>
[  306.851165][ T6584] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.851181][ T6584] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  307.249454][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  307.326508][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  307.694922][ T6588] loop1: detected capacity change from 0 to 32768
[  307.706074][ T6588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  307.706094][ T6588] CPU: 0 UID: 0 PID: 6588 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  307.706116][ T6588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  307.706127][ T6588] Call Trace:
[  307.706134][ T6588]  <TASK>
[  307.706143][ T6588]  dump_stack_lvl+0xe8/0x150
[  307.706174][ T6588]  sysfs_create_dir_ns+0x271/0x2a0
[  307.706201][ T6588]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  307.706228][ T6588]  ? rt_spin_unlock+0x163/0x200
[  307.706250][ T6588]  kobject_add_internal+0x62c/0xce0
[  307.706283][ T6588]  kobject_init_and_add+0x12b/0x1a0
[  307.706314][ T6588]  ? __pfx_kobject_init_and_add+0x10/0x10
[  307.706341][ T6588]  ? __raw_spin_lock_init+0x45/0x100
[  307.706362][ T6588]  ? __init_swait_queue_head+0xa8/0x150
[  307.706394][ T6588]  gfs2_sys_fs_add+0x257/0x480
2026/07/12 02:01:06 executed programs: 208
[  307.706414][ T6588]  ? is_dynamic_key+0x1aa/0x1c0
[  307.706435][ T6588]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  307.706464][ T6588]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  307.706505][ T6588]  gfs2_fill_super+0x1368/0x20f0
[  307.706541][ T6588]  ? __pfx_gfs2_fill_super+0x10/0x10
[  307.706565][ T6588]  ? rt_spin_unlock+0x157/0x200
[  307.706586][ T6588]  ? sb_set_blocksize+0x11b/0x210
[  307.706608][ T6588]  ? setup_bdev_super+0x586/0x680
[  307.706636][ T6588]  get_tree_bdev_flags+0x430/0x4f0
[  307.706663][ T6588]  ? __pfx_gfs2_fill_super+0x10/0x10
[  307.706688][ T6588]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  307.706715][ T6588]  ? rcu_is_watching+0x15/0xb0
[  307.706744][ T6588]  gfs2_get_tree+0x51/0x1e0
[  307.706773][ T6588]  vfs_get_tree+0x92/0x2a0
[  307.706800][ T6588]  do_new_mount+0x319/0xdc0
[  307.706821][ T6588]  ? cap_capable+0x123/0x460
[  307.706847][ T6588]  ? __pfx_do_new_mount+0x10/0x10
[  307.706871][ T6588]  ? ns_capable+0x89/0xe0
[  307.706896][ T6588]  ? path_mount+0x647/0x1050
[  307.706920][ T6588]  ? user_path_at+0xd4/0x160
[  307.706946][ T6588]  __se_sys_mount+0x31d/0x420
[  307.706974][ T6588]  ? __pfx___se_sys_mount+0x10/0x10
[  307.707001][ T6588]  ? __x64_sys_mount+0x20/0xc0
[  307.707022][ T6588]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  307.707042][ T6588]  do_syscall_64+0x174/0x580
[  307.707064][ T6588]  ? trace_irq_disable+0x3b/0x140
[  307.707093][ T6588]  ? clear_bhb_loop+0x40/0x90
[  307.707116][ T6588]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  307.707134][ T6588] RIP: 0033:0x7faedc0df0ca
[  307.707152][ T6588] 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
[  307.707168][ T6588] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  307.707188][ T6588] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  307.707203][ T6588] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  307.707216][ T6588] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  307.707229][ T6588] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  307.707241][ T6588] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  307.707271][ T6588]  </TASK>
[  307.713061][ T6588] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  307.713088][ T6588] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  307.820290][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  307.967101][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  308.241860][ T6591] loop1: detected capacity change from 0 to 32768
[  308.255237][ T6591] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  308.255258][ T6591] CPU: 0 UID: 0 PID: 6591 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  308.255280][ T6591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  308.255291][ T6591] Call Trace:
[  308.255298][ T6591]  <TASK>
[  308.255307][ T6591]  dump_stack_lvl+0xe8/0x150
[  308.255338][ T6591]  sysfs_create_dir_ns+0x271/0x2a0
[  308.255364][ T6591]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  308.255392][ T6591]  ? rt_spin_unlock+0x163/0x200
[  308.255413][ T6591]  kobject_add_internal+0x62c/0xce0
[  308.255446][ T6591]  kobject_init_and_add+0x12b/0x1a0
[  308.255476][ T6591]  ? __pfx_kobject_init_and_add+0x10/0x10
[  308.255502][ T6591]  ? __raw_spin_lock_init+0x45/0x100
[  308.255523][ T6591]  ? __init_swait_queue_head+0xa8/0x150
[  308.255552][ T6591]  gfs2_sys_fs_add+0x257/0x480
[  308.255573][ T6591]  ? is_dynamic_key+0x1aa/0x1c0
[  308.255595][ T6591]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  308.255625][ T6591]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  308.255665][ T6591]  gfs2_fill_super+0x1368/0x20f0
[  308.255703][ T6591]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.255726][ T6591]  ? rt_spin_unlock+0x157/0x200
[  308.255748][ T6591]  ? sb_set_blocksize+0x11b/0x210
[  308.255769][ T6591]  ? setup_bdev_super+0x586/0x680
[  308.255798][ T6591]  get_tree_bdev_flags+0x430/0x4f0
[  308.255824][ T6591]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.255848][ T6591]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  308.255877][ T6591]  ? rcu_is_watching+0x15/0xb0
[  308.255906][ T6591]  gfs2_get_tree+0x51/0x1e0
[  308.255934][ T6591]  vfs_get_tree+0x92/0x2a0
[  308.255962][ T6591]  do_new_mount+0x319/0xdc0
[  308.255982][ T6591]  ? cap_capable+0x123/0x460
[  308.256008][ T6591]  ? __pfx_do_new_mount+0x10/0x10
[  308.256040][ T6591]  ? ns_capable+0x89/0xe0
[  308.256065][ T6591]  ? path_mount+0x647/0x1050
[  308.256089][ T6591]  ? user_path_at+0xd4/0x160
[  308.256115][ T6591]  __se_sys_mount+0x31d/0x420
[  308.256142][ T6591]  ? __pfx___se_sys_mount+0x10/0x10
[  308.256170][ T6591]  ? __x64_sys_mount+0x20/0xc0
[  308.256191][ T6591]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.256212][ T6591]  do_syscall_64+0x174/0x580
[  308.256233][ T6591]  ? trace_irq_disable+0x3b/0x140
[  308.256257][ T6591]  ? clear_bhb_loop+0x40/0x90
[  308.256278][ T6591]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.256297][ T6591] RIP: 0033:0x7faedc0df0ca
[  308.256315][ T6591] 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
[  308.256331][ T6591] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  308.256350][ T6591] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  308.256364][ T6591] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  308.256378][ T6591] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  308.256390][ T6591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  308.256402][ T6591] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  308.256430][ T6591]  </TASK>
[  308.271504][ T6591] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  308.271523][ T6591] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  308.382000][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  308.596751][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  308.793170][ T6594] loop1: detected capacity change from 0 to 32768
[  308.808645][ T6594] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  308.808665][ T6594] CPU: 0 UID: 0 PID: 6594 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  308.808688][ T6594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  308.808698][ T6594] Call Trace:
[  308.808706][ T6594]  <TASK>
[  308.808714][ T6594]  dump_stack_lvl+0xe8/0x150
[  308.808746][ T6594]  sysfs_create_dir_ns+0x271/0x2a0
[  308.808772][ T6594]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  308.808800][ T6594]  ? rt_spin_unlock+0x163/0x200
[  308.808822][ T6594]  kobject_add_internal+0x62c/0xce0
[  308.808854][ T6594]  kobject_init_and_add+0x12b/0x1a0
[  308.808886][ T6594]  ? __pfx_kobject_init_and_add+0x10/0x10
[  308.808913][ T6594]  ? __raw_spin_lock_init+0x45/0x100
[  308.808934][ T6594]  ? __init_swait_queue_head+0xa8/0x150
[  308.808965][ T6594]  gfs2_sys_fs_add+0x257/0x480
[  308.808984][ T6594]  ? is_dynamic_key+0x1aa/0x1c0
[  308.809006][ T6594]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  308.809038][ T6594]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  308.809078][ T6594]  gfs2_fill_super+0x1368/0x20f0
[  308.809116][ T6594]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.809139][ T6594]  ? rt_spin_unlock+0x157/0x200
[  308.809161][ T6594]  ? sb_set_blocksize+0x11b/0x210
[  308.809183][ T6594]  ? setup_bdev_super+0x586/0x680
[  308.809211][ T6594]  get_tree_bdev_flags+0x430/0x4f0
[  308.809237][ T6594]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.809262][ T6594]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  308.809290][ T6594]  ? rcu_is_watching+0x15/0xb0
[  308.809320][ T6594]  gfs2_get_tree+0x51/0x1e0
[  308.809347][ T6594]  vfs_get_tree+0x92/0x2a0
[  308.809375][ T6594]  do_new_mount+0x319/0xdc0
[  308.809396][ T6594]  ? cap_capable+0x123/0x460
[  308.809422][ T6594]  ? __pfx_do_new_mount+0x10/0x10
[  308.809446][ T6594]  ? ns_capable+0x89/0xe0
[  308.809477][ T6594]  ? path_mount+0x647/0x1050
[  308.809503][ T6594]  ? user_path_at+0xd4/0x160
[  308.809529][ T6594]  __se_sys_mount+0x31d/0x420
[  308.809557][ T6594]  ? __pfx___se_sys_mount+0x10/0x10
[  308.809583][ T6594]  ? __x64_sys_mount+0x20/0xc0
[  308.809602][ T6594]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.809621][ T6594]  do_syscall_64+0x174/0x580
[  308.809643][ T6594]  ? trace_irq_disable+0x3b/0x140
[  308.809663][ T6594]  ? clear_bhb_loop+0x40/0x90
[  308.809686][ T6594]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.809705][ T6594] RIP: 0033:0x7faedc0df0ca
[  308.809723][ T6594] 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
[  308.809738][ T6594] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  308.809757][ T6594] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  308.809770][ T6594] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  308.809783][ T6594] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  308.809795][ T6594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  308.809805][ T6594] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  308.809834][ T6594]  </TASK>
[  308.809995][ T6594] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  308.810012][ T6594] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  309.033677][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  309.116526][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  309.347781][ T6597] loop1: detected capacity change from 0 to 32768
[  309.351635][ T6597] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  309.351655][ T6597] CPU: 0 UID: 0 PID: 6597 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  309.351677][ T6597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  309.351688][ T6597] Call Trace:
[  309.351696][ T6597]  <TASK>
[  309.351704][ T6597]  dump_stack_lvl+0xe8/0x150
[  309.351736][ T6597]  sysfs_create_dir_ns+0x271/0x2a0
[  309.351762][ T6597]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  309.351788][ T6597]  ? rt_spin_unlock+0x163/0x200
[  309.351810][ T6597]  kobject_add_internal+0x62c/0xce0
[  309.351843][ T6597]  kobject_init_and_add+0x12b/0x1a0
[  309.351874][ T6597]  ? __pfx_kobject_init_and_add+0x10/0x10
[  309.351903][ T6597]  ? __raw_spin_lock_init+0x45/0x100
[  309.351922][ T6597]  ? __init_swait_queue_head+0xa8/0x150
[  309.351949][ T6597]  gfs2_sys_fs_add+0x257/0x480
[  309.351970][ T6597]  ? is_dynamic_key+0x1aa/0x1c0
[  309.351990][ T6597]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  309.352020][ T6597]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  309.352059][ T6597]  gfs2_fill_super+0x1368/0x20f0
[  309.352095][ T6597]  ? __pfx_gfs2_fill_super+0x10/0x10
[  309.352117][ T6597]  ? rt_spin_unlock+0x157/0x200
[  309.352137][ T6597]  ? sb_set_blocksize+0x11b/0x210
[  309.352156][ T6597]  ? setup_bdev_super+0x586/0x680
[  309.352184][ T6597]  get_tree_bdev_flags+0x430/0x4f0
[  309.352210][ T6597]  ? __pfx_gfs2_fill_super+0x10/0x10
[  309.352232][ T6597]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  309.352259][ T6597]  ? rcu_is_watching+0x15/0xb0
[  309.352286][ T6597]  gfs2_get_tree+0x51/0x1e0
[  309.352313][ T6597]  vfs_get_tree+0x92/0x2a0
[  309.352339][ T6597]  do_new_mount+0x319/0xdc0
[  309.352360][ T6597]  ? cap_capable+0x123/0x460
[  309.352384][ T6597]  ? __pfx_do_new_mount+0x10/0x10
[  309.352407][ T6597]  ? ns_capable+0x89/0xe0
[  309.352431][ T6597]  ? path_mount+0x647/0x1050
[  309.352463][ T6597]  ? user_path_at+0xd4/0x160
[  309.352488][ T6597]  __se_sys_mount+0x31d/0x420
[  309.352514][ T6597]  ? __pfx___se_sys_mount+0x10/0x10
[  309.352541][ T6597]  ? __x64_sys_mount+0x20/0xc0
[  309.352561][ T6597]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  309.352581][ T6597]  do_syscall_64+0x174/0x580
[  309.352601][ T6597]  ? trace_irq_disable+0x3b/0x140
[  309.352621][ T6597]  ? clear_bhb_loop+0x40/0x90
[  309.352642][ T6597]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  309.352659][ T6597] RIP: 0033:0x7faedc0df0ca
[  309.352677][ T6597] 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
[  309.352693][ T6597] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  309.352712][ T6597] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  309.352726][ T6597] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  309.352740][ T6597] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  309.352753][ T6597] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  309.352766][ T6597] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  309.352796][ T6597]  </TASK>
[  309.352838][ T6597] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  309.352853][ T6597] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  309.745104][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  309.827182][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  310.197975][ T6601] loop1: detected capacity change from 0 to 32768
[  310.201793][ T6601] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  310.201813][ T6601] CPU: 0 UID: 0 PID: 6601 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  310.201835][ T6601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  310.201845][ T6601] Call Trace:
[  310.201853][ T6601]  <TASK>
[  310.201861][ T6601]  dump_stack_lvl+0xe8/0x150
[  310.201893][ T6601]  sysfs_create_dir_ns+0x271/0x2a0
[  310.201919][ T6601]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  310.201946][ T6601]  ? rt_spin_unlock+0x163/0x200
[  310.201968][ T6601]  kobject_add_internal+0x62c/0xce0
[  310.202000][ T6601]  kobject_init_and_add+0x12b/0x1a0
[  310.202030][ T6601]  ? __pfx_kobject_init_and_add+0x10/0x10
[  310.202056][ T6601]  ? __raw_spin_lock_init+0x45/0x100
[  310.202078][ T6601]  ? __init_swait_queue_head+0xa8/0x150
[  310.202107][ T6601]  gfs2_sys_fs_add+0x257/0x480
[  310.202128][ T6601]  ? is_dynamic_key+0x1aa/0x1c0
[  310.202150][ T6601]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  310.202180][ T6601]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  310.202223][ T6601]  gfs2_fill_super+0x1368/0x20f0
[  310.202260][ T6601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.202282][ T6601]  ? rt_spin_unlock+0x157/0x200
[  310.202302][ T6601]  ? sb_set_blocksize+0x11b/0x210
[  310.202319][ T6601]  ? setup_bdev_super+0x586/0x680
[  310.202345][ T6601]  get_tree_bdev_flags+0x430/0x4f0
[  310.202377][ T6601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.202402][ T6601]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  310.202431][ T6601]  ? rcu_is_watching+0x15/0xb0
[  310.202460][ T6601]  gfs2_get_tree+0x51/0x1e0
[  310.202489][ T6601]  vfs_get_tree+0x92/0x2a0
[  310.202516][ T6601]  do_new_mount+0x319/0xdc0
[  310.202537][ T6601]  ? cap_capable+0x123/0x460
[  310.202563][ T6601]  ? __pfx_do_new_mount+0x10/0x10
[  310.202587][ T6601]  ? ns_capable+0x89/0xe0
[  310.202612][ T6601]  ? path_mount+0x647/0x1050
[  310.202635][ T6601]  ? user_path_at+0xd4/0x160
[  310.202661][ T6601]  __se_sys_mount+0x31d/0x420
[  310.202689][ T6601]  ? __pfx___se_sys_mount+0x10/0x10
[  310.202717][ T6601]  ? __x64_sys_mount+0x20/0xc0
[  310.202735][ T6601]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.202754][ T6601]  do_syscall_64+0x174/0x580
[  310.202775][ T6601]  ? trace_irq_disable+0x3b/0x140
[  310.202795][ T6601]  ? clear_bhb_loop+0x40/0x90
[  310.202816][ T6601]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.202835][ T6601] RIP: 0033:0x7faedc0df0ca
[  310.202853][ T6601] 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
[  310.202870][ T6601] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  310.202888][ T6601] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  310.202902][ T6601] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  310.202914][ T6601] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  310.202927][ T6601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  310.202938][ T6601] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  310.202966][ T6601]  </TASK>
[  310.203028][ T6601] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  310.203043][ T6601] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  310.284776][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  310.347265][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  310.727108][ T6604] loop1: detected capacity change from 0 to 32768
[  310.734493][ T6604] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  310.734511][ T6604] CPU: 0 UID: 0 PID: 6604 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  310.734533][ T6604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  310.734544][ T6604] Call Trace:
[  310.734551][ T6604]  <TASK>
[  310.734559][ T6604]  dump_stack_lvl+0xe8/0x150
[  310.734592][ T6604]  sysfs_create_dir_ns+0x271/0x2a0
[  310.734617][ T6604]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  310.734644][ T6604]  ? rt_spin_unlock+0x163/0x200
[  310.734667][ T6604]  kobject_add_internal+0x62c/0xce0
[  310.734700][ T6604]  kobject_init_and_add+0x12b/0x1a0
[  310.734731][ T6604]  ? __pfx_kobject_init_and_add+0x10/0x10
[  310.734758][ T6604]  ? __raw_spin_lock_init+0x45/0x100
[  310.734779][ T6604]  ? __init_swait_queue_head+0xa8/0x150
[  310.734808][ T6604]  gfs2_sys_fs_add+0x257/0x480
[  310.734842][ T6604]  ? is_dynamic_key+0x1aa/0x1c0
[  310.734865][ T6604]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  310.734894][ T6604]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  310.734934][ T6604]  gfs2_fill_super+0x1368/0x20f0
[  310.734971][ T6604]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.734994][ T6604]  ? rt_spin_unlock+0x157/0x200
[  310.735016][ T6604]  ? sb_set_blocksize+0x11b/0x210
[  310.735039][ T6604]  ? setup_bdev_super+0x586/0x680
[  310.735067][ T6604]  get_tree_bdev_flags+0x430/0x4f0
[  310.735093][ T6604]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.735117][ T6604]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  310.735145][ T6604]  ? rcu_is_watching+0x15/0xb0
[  310.735174][ T6604]  gfs2_get_tree+0x51/0x1e0
[  310.735203][ T6604]  vfs_get_tree+0x92/0x2a0
[  310.735230][ T6604]  do_new_mount+0x319/0xdc0
[  310.735251][ T6604]  ? cap_capable+0x123/0x460
[  310.735277][ T6604]  ? __pfx_do_new_mount+0x10/0x10
[  310.735301][ T6604]  ? ns_capable+0x89/0xe0
[  310.735326][ T6604]  ? path_mount+0x647/0x1050
[  310.735361][ T6604]  ? user_path_at+0xd4/0x160
[  310.735388][ T6604]  __se_sys_mount+0x31d/0x420
[  310.735418][ T6604]  ? __pfx___se_sys_mount+0x10/0x10
[  310.735446][ T6604]  ? __x64_sys_mount+0x20/0xc0
[  310.735467][ T6604]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.735488][ T6604]  do_syscall_64+0x174/0x580
[  310.735510][ T6604]  ? trace_irq_disable+0x3b/0x140
[  310.735531][ T6604]  ? clear_bhb_loop+0x40/0x90
[  310.735555][ T6604]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.735573][ T6604] RIP: 0033:0x7faedc0df0ca
[  310.735592][ T6604] 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
[  310.735608][ T6604] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  310.735628][ T6604] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  310.735642][ T6604] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  310.735655][ T6604] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  310.735668][ T6604] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  310.735680][ T6604] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  310.735707][ T6604]  </TASK>
[  310.735744][ T6604] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  310.735760][ T6604] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  310.935006][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  311.127706][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  311.291170][ T6607] loop1: detected capacity change from 0 to 32768
[  311.295971][ T6607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  311.295991][ T6607] CPU: 0 UID: 0 PID: 6607 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  311.296013][ T6607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  311.296023][ T6607] Call Trace:
[  311.296031][ T6607]  <TASK>
[  311.296039][ T6607]  dump_stack_lvl+0xe8/0x150
[  311.296071][ T6607]  sysfs_create_dir_ns+0x271/0x2a0
[  311.296097][ T6607]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  311.296124][ T6607]  ? rt_spin_unlock+0x163/0x200
[  311.296146][ T6607]  kobject_add_internal+0x62c/0xce0
[  311.296180][ T6607]  kobject_init_and_add+0x12b/0x1a0
[  311.296210][ T6607]  ? __pfx_kobject_init_and_add+0x10/0x10
[  311.296238][ T6607]  ? __raw_spin_lock_init+0x45/0x100
[  311.296259][ T6607]  ? __init_swait_queue_head+0xa8/0x150
[  311.296288][ T6607]  gfs2_sys_fs_add+0x257/0x480
[  311.296310][ T6607]  ? is_dynamic_key+0x1aa/0x1c0
[  311.296332][ T6607]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  311.296361][ T6607]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  311.296404][ T6607]  gfs2_fill_super+0x1368/0x20f0
[  311.296439][ T6607]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.296466][ T6607]  ? rt_spin_unlock+0x157/0x200
[  311.296487][ T6607]  ? sb_set_blocksize+0x11b/0x210
[  311.296508][ T6607]  ? setup_bdev_super+0x586/0x680
[  311.296537][ T6607]  get_tree_bdev_flags+0x430/0x4f0
[  311.296562][ T6607]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.296587][ T6607]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  311.296614][ T6607]  ? rcu_is_watching+0x15/0xb0
[  311.296643][ T6607]  gfs2_get_tree+0x51/0x1e0
[  311.296671][ T6607]  vfs_get_tree+0x92/0x2a0
[  311.296698][ T6607]  do_new_mount+0x319/0xdc0
[  311.296719][ T6607]  ? cap_capable+0x123/0x460
[  311.296745][ T6607]  ? __pfx_do_new_mount+0x10/0x10
[  311.296769][ T6607]  ? ns_capable+0x89/0xe0
[  311.296801][ T6607]  ? path_mount+0x647/0x1050
[  311.296826][ T6607]  ? user_path_at+0xd4/0x160
[  311.296852][ T6607]  __se_sys_mount+0x31d/0x420
[  311.296879][ T6607]  ? __pfx___se_sys_mount+0x10/0x10
[  311.296904][ T6607]  ? __x64_sys_mount+0x20/0xc0
[  311.296924][ T6607]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.296944][ T6607]  do_syscall_64+0x174/0x580
[  311.296962][ T6607]  ? trace_irq_disable+0x3b/0x140
[  311.296980][ T6607]  ? clear_bhb_loop+0x40/0x90
[  311.297000][ T6607]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.297019][ T6607] RIP: 0033:0x7faedc0df0ca
[  311.297036][ T6607] 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
[  311.297052][ T6607] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  311.297072][ T6607] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  311.297086][ T6607] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  311.297098][ T6607] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  311.297111][ T6607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  311.297123][ T6607] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  311.297152][ T6607]  </TASK>
[  311.301656][ T6607] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  311.301674][ T6607] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  311.399280][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  311.647283][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  311.830053][ T6610] loop1: detected capacity change from 0 to 32768
[  311.843192][ T6610] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  311.843206][ T6610] CPU: 0 UID: 0 PID: 6610 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  311.843218][ T6610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  311.843225][ T6610] Call Trace:
[  311.843229][ T6610]  <TASK>
[  311.843234][ T6610]  dump_stack_lvl+0xe8/0x150
[  311.843255][ T6610]  sysfs_create_dir_ns+0x271/0x2a0
[  311.843270][ T6610]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  311.843285][ T6610]  ? rt_spin_unlock+0x163/0x200
[  311.843298][ T6610]  kobject_add_internal+0x62c/0xce0
[  311.843317][ T6610]  kobject_init_and_add+0x12b/0x1a0
[  311.843335][ T6610]  ? __pfx_kobject_init_and_add+0x10/0x10
[  311.843351][ T6610]  ? __raw_spin_lock_init+0x45/0x100
[  311.843363][ T6610]  ? __init_swait_queue_head+0xa8/0x150
[  311.843380][ T6610]  gfs2_sys_fs_add+0x257/0x480
[  311.843392][ T6610]  ? is_dynamic_key+0x1aa/0x1c0
[  311.843405][ T6610]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  311.843421][ T6610]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  311.843447][ T6610]  gfs2_fill_super+0x1368/0x20f0
[  311.843469][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.843482][ T6610]  ? rt_spin_unlock+0x157/0x200
[  311.843494][ T6610]  ? sb_set_blocksize+0x11b/0x210
[  311.843506][ T6610]  ? setup_bdev_super+0x586/0x680
[  311.843523][ T6610]  get_tree_bdev_flags+0x430/0x4f0
[  311.843539][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.843553][ T6610]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  311.843569][ T6610]  ? rcu_is_watching+0x15/0xb0
[  311.843586][ T6610]  gfs2_get_tree+0x51/0x1e0
[  311.843602][ T6610]  vfs_get_tree+0x92/0x2a0
[  311.843618][ T6610]  do_new_mount+0x319/0xdc0
[  311.843630][ T6610]  ? cap_capable+0x123/0x460
[  311.843645][ T6610]  ? __pfx_do_new_mount+0x10/0x10
[  311.843658][ T6610]  ? ns_capable+0x89/0xe0
[  311.843672][ T6610]  ? path_mount+0x647/0x1050
[  311.843686][ T6610]  ? user_path_at+0xd4/0x160
[  311.843701][ T6610]  __se_sys_mount+0x31d/0x420
[  311.843716][ T6610]  ? __pfx___se_sys_mount+0x10/0x10
[  311.843731][ T6610]  ? __x64_sys_mount+0x20/0xc0
[  311.843743][ T6610]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.843755][ T6610]  do_syscall_64+0x174/0x580
[  311.843767][ T6610]  ? trace_irq_disable+0x3b/0x140
[  311.843779][ T6610]  ? clear_bhb_loop+0x40/0x90
[  311.843791][ T6610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.843801][ T6610] RIP: 0033:0x7faedc0df0ca
[  311.843812][ T6610] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  311.843821][ T6610] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  311.843833][ T6610] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  311.843840][ T6610] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  311.843847][ T6610] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  311.843854][ T6610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  311.843861][ T6610] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  311.843876][ T6610]  </TASK>
[  311.843890][ T6610] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  311.843899][ T6610] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  311.927697][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  312.026529][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  312.391066][ T6613] loop1: detected capacity change from 0 to 32768
[  312.405529][ T6613] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  312.405549][ T6613] CPU: 0 UID: 0 PID: 6613 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  312.405571][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  312.405582][ T6613] Call Trace:
[  312.405590][ T6613]  <TASK>
[  312.405598][ T6613]  dump_stack_lvl+0xe8/0x150
[  312.405630][ T6613]  sysfs_create_dir_ns+0x271/0x2a0
[  312.405655][ T6613]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  312.405682][ T6613]  ? rt_spin_unlock+0x163/0x200
[  312.405704][ T6613]  kobject_add_internal+0x62c/0xce0
[  312.405745][ T6613]  kobject_init_and_add+0x12b/0x1a0
[  312.405775][ T6613]  ? __pfx_kobject_init_and_add+0x10/0x10
[  312.405803][ T6613]  ? __raw_spin_lock_init+0x45/0x100
[  312.405824][ T6613]  ? __init_swait_queue_head+0xa8/0x150
[  312.405855][ T6613]  gfs2_sys_fs_add+0x257/0x480
[  312.405876][ T6613]  ? is_dynamic_key+0x1aa/0x1c0
[  312.405897][ T6613]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  312.405927][ T6613]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  312.405968][ T6613]  gfs2_fill_super+0x1368/0x20f0
[  312.406006][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.406029][ T6613]  ? rt_spin_unlock+0x157/0x200
[  312.406051][ T6613]  ? sb_set_blocksize+0x11b/0x210
[  312.406073][ T6613]  ? setup_bdev_super+0x586/0x680
[  312.406102][ T6613]  get_tree_bdev_flags+0x430/0x4f0
[  312.406128][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.406152][ T6613]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  312.406180][ T6613]  ? rcu_is_watching+0x15/0xb0
[  312.406208][ T6613]  gfs2_get_tree+0x51/0x1e0
[  312.406236][ T6613]  vfs_get_tree+0x92/0x2a0
[  312.406263][ T6613]  do_new_mount+0x319/0xdc0
[  312.406284][ T6613]  ? cap_capable+0x123/0x460
[  312.406310][ T6613]  ? __pfx_do_new_mount+0x10/0x10
[  312.406333][ T6613]  ? ns_capable+0x89/0xe0
[  312.406358][ T6613]  ? path_mount+0x647/0x1050
[  312.406384][ T6613]  ? user_path_at+0xd4/0x160
[  312.406409][ T6613]  __se_sys_mount+0x31d/0x420
[  312.406435][ T6613]  ? __pfx___se_sys_mount+0x10/0x10
[  312.406462][ T6613]  ? __x64_sys_mount+0x20/0xc0
[  312.406482][ T6613]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.406502][ T6613]  do_syscall_64+0x174/0x580
[  312.406524][ T6613]  ? trace_irq_disable+0x3b/0x140
[  312.406546][ T6613]  ? clear_bhb_loop+0x40/0x90
[  312.406569][ T6613]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.406586][ T6613] RIP: 0033:0x7faedc0df0ca
[  312.406604][ T6613] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  312.406620][ T6613] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  312.406640][ T6613] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  312.406654][ T6613] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  312.406668][ T6613] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  312.406681][ T6613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  312.406693][ T6613] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  312.406730][ T6613]  </TASK>
[  312.410677][ T6613] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  312.410696][ T6613] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  312.546487][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  312.616511][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  312.935480][ T6616] loop1: detected capacity change from 0 to 32768
[  312.962282][ T6616] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  312.962296][ T6616] CPU: 0 UID: 0 PID: 6616 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  312.962308][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  312.962315][ T6616] Call Trace:
[  312.962320][ T6616]  <TASK>
[  312.962324][ T6616]  dump_stack_lvl+0xe8/0x150
[  312.962345][ T6616]  sysfs_create_dir_ns+0x271/0x2a0
[  312.962360][ T6616]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  312.962374][ T6616]  ? rt_spin_unlock+0x163/0x200
[  312.962387][ T6616]  kobject_add_internal+0x62c/0xce0
2026/07/12 02:01:12 executed programs: 218
[  312.962405][ T6616]  kobject_init_and_add+0x12b/0x1a0
[  312.962423][ T6616]  ? __pfx_kobject_init_and_add+0x10/0x10
[  312.962439][ T6616]  ? __raw_spin_lock_init+0x45/0x100
[  312.962450][ T6616]  ? __init_swait_queue_head+0xa8/0x150
[  312.962468][ T6616]  gfs2_sys_fs_add+0x257/0x480
[  312.962480][ T6616]  ? is_dynamic_key+0x1aa/0x1c0
[  312.962492][ T6616]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  312.962508][ T6616]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  312.962531][ T6616]  gfs2_fill_super+0x1368/0x20f0
[  312.962553][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.962567][ T6616]  ? rt_spin_unlock+0x157/0x200
[  312.962579][ T6616]  ? sb_set_blocksize+0x11b/0x210
[  312.962599][ T6616]  ? setup_bdev_super+0x586/0x680
[  312.962628][ T6616]  get_tree_bdev_flags+0x430/0x4f0
[  312.962660][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.962676][ T6616]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  312.962692][ T6616]  ? rcu_is_watching+0x15/0xb0
[  312.962709][ T6616]  gfs2_get_tree+0x51/0x1e0
[  312.962726][ T6616]  vfs_get_tree+0x92/0x2a0
[  312.962741][ T6616]  do_new_mount+0x319/0xdc0
[  312.962753][ T6616]  ? cap_capable+0x123/0x460
[  312.962768][ T6616]  ? __pfx_do_new_mount+0x10/0x10
[  312.962781][ T6616]  ? ns_capable+0x89/0xe0
[  312.962796][ T6616]  ? path_mount+0x647/0x1050
[  312.962810][ T6616]  ? user_path_at+0xd4/0x160
[  312.962825][ T6616]  __se_sys_mount+0x31d/0x420
[  312.962840][ T6616]  ? __pfx___se_sys_mount+0x10/0x10
[  312.962855][ T6616]  ? __x64_sys_mount+0x20/0xc0
[  312.962867][ T6616]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.962878][ T6616]  do_syscall_64+0x174/0x580
[  312.962891][ T6616]  ? trace_irq_disable+0x3b/0x140
[  312.962904][ T6616]  ? clear_bhb_loop+0x40/0x90
[  312.962916][ T6616]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.962926][ T6616] RIP: 0033:0x7faedc0df0ca
[  312.962937][ T6616] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  312.962947][ T6616] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  312.962959][ T6616] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  312.962966][ T6616] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  312.962973][ T6616] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  312.962980][ T6616] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  312.962987][ T6616] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  312.963002][ T6616]  </TASK>
[  312.963017][ T6616] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  312.963025][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  313.085505][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  313.386566][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  313.452698][ T6619] loop1: detected capacity change from 0 to 32768
[  313.480178][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  313.480199][ T6619] CPU: 1 UID: 0 PID: 6619 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  313.480220][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  313.480231][ T6619] Call Trace:
[  313.480239][ T6619]  <TASK>
[  313.480247][ T6619]  dump_stack_lvl+0xe8/0x150
[  313.480279][ T6619]  sysfs_create_dir_ns+0x271/0x2a0
[  313.480305][ T6619]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  313.480331][ T6619]  ? rt_spin_unlock+0x163/0x200
[  313.480353][ T6619]  kobject_add_internal+0x62c/0xce0
[  313.480386][ T6619]  kobject_init_and_add+0x12b/0x1a0
[  313.480417][ T6619]  ? __pfx_kobject_init_and_add+0x10/0x10
[  313.480444][ T6619]  ? __raw_spin_lock_init+0x45/0x100
[  313.480466][ T6619]  ? __init_swait_queue_head+0xa8/0x150
[  313.480495][ T6619]  gfs2_sys_fs_add+0x257/0x480
[  313.480515][ T6619]  ? is_dynamic_key+0x1aa/0x1c0
[  313.480538][ T6619]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  313.480568][ T6619]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  313.480609][ T6619]  gfs2_fill_super+0x1368/0x20f0
[  313.480650][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  313.480680][ T6619]  ? rt_spin_unlock+0x157/0x200
[  313.480703][ T6619]  ? sb_set_blocksize+0x11b/0x210
[  313.480725][ T6619]  ? setup_bdev_super+0x586/0x680
[  313.480754][ T6619]  get_tree_bdev_flags+0x430/0x4f0
[  313.480780][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  313.480805][ T6619]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  313.480834][ T6619]  ? rcu_is_watching+0x15/0xb0
[  313.480864][ T6619]  gfs2_get_tree+0x51/0x1e0
[  313.480893][ T6619]  vfs_get_tree+0x92/0x2a0
[  313.480920][ T6619]  do_new_mount+0x319/0xdc0
[  313.480942][ T6619]  ? cap_capable+0x123/0x460
[  313.480969][ T6619]  ? __pfx_do_new_mount+0x10/0x10
[  313.480991][ T6619]  ? ns_capable+0x89/0xe0
[  313.481016][ T6619]  ? path_mount+0x647/0x1050
[  313.481041][ T6619]  ? user_path_at+0xd4/0x160
[  313.481067][ T6619]  __se_sys_mount+0x31d/0x420
[  313.481095][ T6619]  ? __pfx___se_sys_mount+0x10/0x10
[  313.481122][ T6619]  ? __x64_sys_mount+0x20/0xc0
[  313.481143][ T6619]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  313.481164][ T6619]  do_syscall_64+0x174/0x580
[  313.481185][ T6619]  ? trace_irq_disable+0x3b/0x140
[  313.481207][ T6619]  ? clear_bhb_loop+0x40/0x90
[  313.481230][ T6619]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  313.481249][ T6619] RIP: 0033:0x7faedc0df0ca
[  313.481267][ T6619] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  313.481284][ T6619] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  313.481304][ T6619] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  313.481318][ T6619] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  313.481332][ T6619] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  313.481345][ T6619] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  313.481357][ T6619] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  313.481388][ T6619]  </TASK>
[  313.481422][ T6619] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  313.481458][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  313.805269][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  313.876512][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  313.976553][   T60] Bluetooth: hci1: command 0x0406 tx timeout
[  314.155974][ T6622] loop1: detected capacity change from 0 to 32768
[  314.169539][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  314.169552][ T6622] CPU: 0 UID: 0 PID: 6622 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  314.169573][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  314.169579][ T6622] Call Trace:
[  314.169584][ T6622]  <TASK>
[  314.169588][ T6622]  dump_stack_lvl+0xe8/0x150
[  314.169610][ T6622]  sysfs_create_dir_ns+0x271/0x2a0
[  314.169624][ T6622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  314.169640][ T6622]  ? rt_spin_unlock+0x163/0x200
[  314.169652][ T6622]  kobject_add_internal+0x62c/0xce0
[  314.169671][ T6622]  kobject_init_and_add+0x12b/0x1a0
[  314.169689][ T6622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  314.169705][ T6622]  ? __raw_spin_lock_init+0x45/0x100
[  314.169716][ T6622]  ? __init_swait_queue_head+0xa8/0x150
[  314.169734][ T6622]  gfs2_sys_fs_add+0x257/0x480
[  314.169746][ T6622]  ? is_dynamic_key+0x1aa/0x1c0
[  314.169759][ T6622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  314.169775][ T6622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  314.169798][ T6622]  gfs2_fill_super+0x1368/0x20f0
[  314.169820][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.169833][ T6622]  ? rt_spin_unlock+0x157/0x200
[  314.169845][ T6622]  ? sb_set_blocksize+0x11b/0x210
[  314.169857][ T6622]  ? setup_bdev_super+0x586/0x680
[  314.169873][ T6622]  get_tree_bdev_flags+0x430/0x4f0
[  314.169889][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.169908][ T6622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  314.169935][ T6622]  ? rcu_is_watching+0x15/0xb0
[  314.169960][ T6622]  gfs2_get_tree+0x51/0x1e0
[  314.169980][ T6622]  vfs_get_tree+0x92/0x2a0
[  314.169996][ T6622]  do_new_mount+0x319/0xdc0
[  314.170008][ T6622]  ? cap_capable+0x123/0x460
[  314.170023][ T6622]  ? __pfx_do_new_mount+0x10/0x10
[  314.170036][ T6622]  ? ns_capable+0x89/0xe0
[  314.170050][ T6622]  ? path_mount+0x647/0x1050
[  314.170066][ T6622]  ? user_path_at+0xd4/0x160
[  314.170082][ T6622]  __se_sys_mount+0x31d/0x420
[  314.170097][ T6622]  ? __pfx___se_sys_mount+0x10/0x10
[  314.170113][ T6622]  ? __x64_sys_mount+0x20/0xc0
[  314.170125][ T6622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.170136][ T6622]  do_syscall_64+0x174/0x580
[  314.170148][ T6622]  ? trace_irq_disable+0x3b/0x140
[  314.170161][ T6622]  ? clear_bhb_loop+0x40/0x90
[  314.170173][ T6622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.170184][ T6622] RIP: 0033:0x7faedc0df0ca
[  314.170195][ T6622] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  314.170204][ T6622] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  314.170215][ T6622] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  314.170223][ T6622] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  314.170230][ T6622] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  314.170237][ T6622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  314.170244][ T6622] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  314.170259][ T6622]  </TASK>
[  314.170282][ T6622] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  314.170290][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  314.262104][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  314.437346][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  314.778509][ T6625] loop1: detected capacity change from 0 to 32768
[  314.788698][ T6625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  314.788718][ T6625] CPU: 1 UID: 0 PID: 6625 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  314.788741][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  314.788751][ T6625] Call Trace:
[  314.788759][ T6625]  <TASK>
[  314.788767][ T6625]  dump_stack_lvl+0xe8/0x150
[  314.788798][ T6625]  sysfs_create_dir_ns+0x271/0x2a0
[  314.788824][ T6625]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  314.788852][ T6625]  ? rt_spin_unlock+0x163/0x200
[  314.788873][ T6625]  kobject_add_internal+0x62c/0xce0
[  314.788907][ T6625]  kobject_init_and_add+0x12b/0x1a0
[  314.788936][ T6625]  ? __pfx_kobject_init_and_add+0x10/0x10
[  314.788964][ T6625]  ? __raw_spin_lock_init+0x45/0x100
[  314.788986][ T6625]  ? __init_swait_queue_head+0xa8/0x150
[  314.789015][ T6625]  gfs2_sys_fs_add+0x257/0x480
[  314.789035][ T6625]  ? is_dynamic_key+0x1aa/0x1c0
[  314.789057][ T6625]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  314.789087][ T6625]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  314.789128][ T6625]  gfs2_fill_super+0x1368/0x20f0
[  314.789166][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.789190][ T6625]  ? rt_spin_unlock+0x157/0x200
[  314.789213][ T6625]  ? sb_set_blocksize+0x11b/0x210
[  314.789234][ T6625]  ? setup_bdev_super+0x586/0x680
[  314.789263][ T6625]  get_tree_bdev_flags+0x430/0x4f0
[  314.789289][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.789313][ T6625]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  314.789342][ T6625]  ? rcu_is_watching+0x15/0xb0
[  314.789371][ T6625]  gfs2_get_tree+0x51/0x1e0
[  314.789399][ T6625]  vfs_get_tree+0x92/0x2a0
[  314.789426][ T6625]  do_new_mount+0x319/0xdc0
[  314.789449][ T6625]  ? cap_capable+0x123/0x460
[  314.789475][ T6625]  ? __pfx_do_new_mount+0x10/0x10
[  314.789499][ T6625]  ? ns_capable+0x89/0xe0
[  314.789531][ T6625]  ? path_mount+0x647/0x1050
[  314.789556][ T6625]  ? user_path_at+0xd4/0x160
[  314.789581][ T6625]  __se_sys_mount+0x31d/0x420
[  314.789608][ T6625]  ? __pfx___se_sys_mount+0x10/0x10
[  314.789635][ T6625]  ? __x64_sys_mount+0x20/0xc0
[  314.789655][ T6625]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.789675][ T6625]  do_syscall_64+0x174/0x580
[  314.789696][ T6625]  ? trace_irq_disable+0x3b/0x140
[  314.789718][ T6625]  ? clear_bhb_loop+0x40/0x90
[  314.789740][ T6625]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.789758][ T6625] RIP: 0033:0x7faedc0df0ca
[  314.789776][ T6625] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  314.789792][ T6625] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  314.789811][ T6625] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  314.789825][ T6625] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  314.789838][ T6625] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  314.789851][ T6625] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  314.789864][ T6625] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  314.789895][ T6625]  </TASK>
[  314.913405][ T6625] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  314.913425][ T6625] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  314.928973][ T6625] Flush: task=syz.1.235[6625] dev=loop1 state=2
[  315.036702][ T6625] Teardown: task=syz.1.235[6625] dev=loop1 state=2
[  315.422160][ T6628] loop1: detected capacity change from 0 to 32768
[  315.436991][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  315.437012][ T6628] CPU: 0 UID: 0 PID: 6628 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  315.437034][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  315.437044][ T6628] Call Trace:
[  315.437051][ T6628]  <TASK>
[  315.437059][ T6628]  dump_stack_lvl+0xe8/0x150
[  315.437090][ T6628]  sysfs_create_dir_ns+0x271/0x2a0
[  315.437116][ T6628]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  315.437142][ T6628]  ? rt_spin_unlock+0x163/0x200
[  315.437163][ T6628]  kobject_add_internal+0x62c/0xce0
[  315.437195][ T6628]  kobject_init_and_add+0x12b/0x1a0
[  315.437226][ T6628]  ? __pfx_kobject_init_and_add+0x10/0x10
[  315.437259][ T6628]  ? __raw_spin_lock_init+0x45/0x100
[  315.437280][ T6628]  ? __init_swait_queue_head+0xa8/0x150
[  315.437309][ T6628]  gfs2_sys_fs_add+0x257/0x480
[  315.437329][ T6628]  ? is_dynamic_key+0x1aa/0x1c0
[  315.437351][ T6628]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  315.437382][ T6628]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  315.437423][ T6628]  gfs2_fill_super+0x1368/0x20f0
[  315.437461][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.437485][ T6628]  ? rt_spin_unlock+0x157/0x200
[  315.437520][ T6628]  ? sb_set_blocksize+0x11b/0x210
[  315.437542][ T6628]  ? setup_bdev_super+0x586/0x680
[  315.437570][ T6628]  get_tree_bdev_flags+0x430/0x4f0
[  315.437596][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.437619][ T6628]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  315.437646][ T6628]  ? rcu_is_watching+0x15/0xb0
[  315.437675][ T6628]  gfs2_get_tree+0x51/0x1e0
[  315.437702][ T6628]  vfs_get_tree+0x92/0x2a0
[  315.437729][ T6628]  do_new_mount+0x319/0xdc0
[  315.437750][ T6628]  ? cap_capable+0x123/0x460
[  315.437776][ T6628]  ? __pfx_do_new_mount+0x10/0x10
[  315.437799][ T6628]  ? ns_capable+0x89/0xe0
[  315.437824][ T6628]  ? path_mount+0x647/0x1050
[  315.437848][ T6628]  ? user_path_at+0xd4/0x160
[  315.437873][ T6628]  __se_sys_mount+0x31d/0x420
[  315.437900][ T6628]  ? __pfx___se_sys_mount+0x10/0x10
[  315.437928][ T6628]  ? __x64_sys_mount+0x20/0xc0
[  315.437949][ T6628]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.437970][ T6628]  do_syscall_64+0x174/0x580
[  315.437990][ T6628]  ? trace_irq_disable+0x3b/0x140
[  315.438011][ T6628]  ? clear_bhb_loop+0x40/0x90
[  315.438033][ T6628]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.438052][ T6628] RIP: 0033:0x7faedc0df0ca
[  315.438069][ T6628] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  315.438086][ T6628] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  315.438107][ T6628] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  315.438122][ T6628] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  315.438136][ T6628] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  315.438149][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  315.438162][ T6628] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  315.438191][ T6628]  </TASK>
[  315.441078][ T6628] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  315.441097][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  315.522222][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  315.596531][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  315.981318][ T6631] loop1: detected capacity change from 0 to 32768
[  315.986956][ T6631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  315.986975][ T6631] CPU: 1 UID: 0 PID: 6631 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  315.986995][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  315.987006][ T6631] Call Trace:
[  315.987012][ T6631]  <TASK>
[  315.987020][ T6631]  dump_stack_lvl+0xe8/0x150
[  315.987052][ T6631]  sysfs_create_dir_ns+0x271/0x2a0
[  315.987077][ T6631]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  315.987104][ T6631]  ? rt_spin_unlock+0x163/0x200
[  315.987125][ T6631]  kobject_add_internal+0x62c/0xce0
[  315.987157][ T6631]  kobject_init_and_add+0x12b/0x1a0
[  315.987188][ T6631]  ? __pfx_kobject_init_and_add+0x10/0x10
[  315.987214][ T6631]  ? __raw_spin_lock_init+0x45/0x100
[  315.987234][ T6631]  ? __init_swait_queue_head+0xa8/0x150
[  315.987265][ T6631]  gfs2_sys_fs_add+0x257/0x480
[  315.987286][ T6631]  ? is_dynamic_key+0x1aa/0x1c0
[  315.987308][ T6631]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  315.987337][ T6631]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  315.987379][ T6631]  gfs2_fill_super+0x1368/0x20f0
[  315.987425][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.987448][ T6631]  ? rt_spin_unlock+0x157/0x200
[  315.987470][ T6631]  ? sb_set_blocksize+0x11b/0x210
[  315.987492][ T6631]  ? setup_bdev_super+0x586/0x680
[  315.987521][ T6631]  get_tree_bdev_flags+0x430/0x4f0
[  315.987547][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.987572][ T6631]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  315.987600][ T6631]  ? rcu_is_watching+0x15/0xb0
[  315.987630][ T6631]  gfs2_get_tree+0x51/0x1e0
[  315.987658][ T6631]  vfs_get_tree+0x92/0x2a0
[  315.987685][ T6631]  do_new_mount+0x319/0xdc0
[  315.987709][ T6631]  ? cap_capable+0x123/0x460
[  315.987734][ T6631]  ? __pfx_do_new_mount+0x10/0x10
[  315.987757][ T6631]  ? ns_capable+0x89/0xe0
[  315.987782][ T6631]  ? path_mount+0x647/0x1050
[  315.987807][ T6631]  ? user_path_at+0xd4/0x160
[  315.987833][ T6631]  __se_sys_mount+0x31d/0x420
[  315.987861][ T6631]  ? __pfx___se_sys_mount+0x10/0x10
[  315.987889][ T6631]  ? __x64_sys_mount+0x20/0xc0
[  315.987911][ T6631]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.987930][ T6631]  do_syscall_64+0x174/0x580
[  315.987952][ T6631]  ? trace_irq_disable+0x3b/0x140
[  315.987974][ T6631]  ? clear_bhb_loop+0x40/0x90
[  315.987997][ T6631]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.988015][ T6631] RIP: 0033:0x7faedc0df0ca
[  315.988033][ T6631] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  315.988049][ T6631] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  315.988069][ T6631] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  315.988084][ T6631] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  315.988098][ T6631] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  315.988111][ T6631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  315.988123][ T6631] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  315.988154][ T6631]  </TASK>
[  315.988190][ T6631] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  315.988206][ T6631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  316.263186][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  316.396569][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  316.489364][ T6634] loop1: detected capacity change from 0 to 32768
[  316.521373][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  316.521394][ T6634] CPU: 0 UID: 0 PID: 6634 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  316.521417][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  316.521428][ T6634] Call Trace:
[  316.521436][ T6634]  <TASK>
[  316.521444][ T6634]  dump_stack_lvl+0xe8/0x150
[  316.521476][ T6634]  sysfs_create_dir_ns+0x271/0x2a0
[  316.521501][ T6634]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  316.521530][ T6634]  ? rt_spin_unlock+0x163/0x200
[  316.521552][ T6634]  kobject_add_internal+0x62c/0xce0
[  316.521585][ T6634]  kobject_init_and_add+0x12b/0x1a0
[  316.521616][ T6634]  ? __pfx_kobject_init_and_add+0x10/0x10
[  316.521644][ T6634]  ? __raw_spin_lock_init+0x45/0x100
[  316.521667][ T6634]  ? __init_swait_queue_head+0xa8/0x150
[  316.521697][ T6634]  gfs2_sys_fs_add+0x257/0x480
[  316.521718][ T6634]  ? is_dynamic_key+0x1aa/0x1c0
[  316.521740][ T6634]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  316.521770][ T6634]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  316.521811][ T6634]  gfs2_fill_super+0x1368/0x20f0
[  316.521848][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.521879][ T6634]  ? rt_spin_unlock+0x157/0x200
[  316.521901][ T6634]  ? sb_set_blocksize+0x11b/0x210
[  316.521923][ T6634]  ? setup_bdev_super+0x586/0x680
[  316.521953][ T6634]  get_tree_bdev_flags+0x430/0x4f0
[  316.521979][ T6634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.522006][ T6634]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  316.522035][ T6634]  ? rcu_is_watching+0x15/0xb0
[  316.522064][ T6634]  gfs2_get_tree+0x51/0x1e0
[  316.522092][ T6634]  vfs_get_tree+0x92/0x2a0
[  316.522119][ T6634]  do_new_mount+0x319/0xdc0
[  316.522141][ T6634]  ? cap_capable+0x123/0x460
[  316.522167][ T6634]  ? __pfx_do_new_mount+0x10/0x10
[  316.522191][ T6634]  ? ns_capable+0x89/0xe0
[  316.522216][ T6634]  ? path_mount+0x647/0x1050
[  316.522241][ T6634]  ? user_path_at+0xd4/0x160
[  316.522268][ T6634]  __se_sys_mount+0x31d/0x420
[  316.522296][ T6634]  ? __pfx___se_sys_mount+0x10/0x10
[  316.522325][ T6634]  ? __x64_sys_mount+0x20/0xc0
[  316.522346][ T6634]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.522367][ T6634]  do_syscall_64+0x174/0x580
[  316.522389][ T6634]  ? trace_irq_disable+0x3b/0x140
[  316.522411][ T6634]  ? clear_bhb_loop+0x40/0x90
[  316.522433][ T6634]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.522452][ T6634] RIP: 0033:0x7faedc0df0ca
[  316.522471][ T6634] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  316.522488][ T6634] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  316.522508][ T6634] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  316.522523][ T6634] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  316.522537][ T6634] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  316.522550][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  316.522562][ T6634] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  316.522593][ T6634]  </TASK>
[  316.522649][ T6634] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  316.522665][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  316.803328][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  316.886474][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  317.035713][ T1340] ieee802154 phy0 wpan0: encryption failed: -22
[  317.035801][ T1340] ieee802154 phy1 wpan1: encryption failed: -22
[  317.104190][ T6637] loop1: detected capacity change from 0 to 32768
[  317.108295][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  317.108315][ T6637] CPU: 0 UID: 0 PID: 6637 Comm: syz.1.239 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  317.108337][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  317.108347][ T6637] Call Trace:
[  317.108355][ T6637]  <TASK>
[  317.108363][ T6637]  dump_stack_lvl+0xe8/0x150
[  317.108395][ T6637]  sysfs_create_dir_ns+0x271/0x2a0
[  317.108421][ T6637]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  317.108448][ T6637]  ? rt_spin_unlock+0x163/0x200
[  317.108469][ T6637]  kobject_add_internal+0x62c/0xce0
[  317.108501][ T6637]  kobject_init_and_add+0x12b/0x1a0
[  317.108531][ T6637]  ? __pfx_kobject_init_and_add+0x10/0x10
[  317.108558][ T6637]  ? __raw_spin_lock_init+0x45/0x100
[  317.108579][ T6637]  ? __init_swait_queue_head+0xa8/0x150
[  317.108608][ T6637]  gfs2_sys_fs_add+0x257/0x480
[  317.108628][ T6637]  ? is_dynamic_key+0x1aa/0x1c0
[  317.108649][ T6637]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  317.108678][ T6637]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  317.108717][ T6637]  gfs2_fill_super+0x1368/0x20f0
[  317.108753][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  317.108779][ T6637]  ? rt_spin_unlock+0x157/0x200
[  317.108800][ T6637]  ? sb_set_blocksize+0x11b/0x210
[  317.108827][ T6637]  ? setup_bdev_super+0x586/0x680
[  317.108856][ T6637]  get_tree_bdev_flags+0x430/0x4f0
[  317.108882][ T6637]  ? __pfx_gfs2_fill_super+0x10/0x10
[  317.108906][ T6637]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  317.108934][ T6637]  ? rcu_is_watching+0x15/0xb0
[  317.108962][ T6637]  gfs2_get_tree+0x51/0x1e0
[  317.108990][ T6637]  vfs_get_tree+0x92/0x2a0
[  317.109017][ T6637]  do_new_mount+0x319/0xdc0
[  317.109038][ T6637]  ? cap_capable+0x123/0x460
[  317.109062][ T6637]  ? __pfx_do_new_mount+0x10/0x10
[  317.109084][ T6637]  ? ns_capable+0x89/0xe0
[  317.109107][ T6637]  ? path_mount+0x647/0x1050
[  317.109131][ T6637]  ? user_path_at+0xd4/0x160
[  317.109157][ T6637]  __se_sys_mount+0x31d/0x420
[  317.109183][ T6637]  ? __pfx___se_sys_mount+0x10/0x10
[  317.109211][ T6637]  ? __x64_sys_mount+0x20/0xc0
[  317.109231][ T6637]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  317.109252][ T6637]  do_syscall_64+0x174/0x580
[  317.109272][ T6637]  ? trace_irq_disable+0x3b/0x140
[  317.109293][ T6637]  ? clear_bhb_loop+0x40/0x90
[  317.109316][ T6637]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  317.109334][ T6637] RIP: 0033:0x7faedc0df0ca
[  317.109351][ T6637] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  317.109367][ T6637] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  317.109386][ T6637] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  317.109400][ T6637] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  317.109413][ T6637] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  317.109427][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  317.109439][ T6637] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  317.109468][ T6637]  </TASK>
[  317.116556][ T6637] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  317.116576][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  317.237339][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  317.306566][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  317.650091][ T6640] loop1: detected capacity change from 0 to 32768
[  317.655466][ T6640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  317.655485][ T6640] CPU: 1 UID: 0 PID: 6640 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  317.655508][ T6640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  317.655518][ T6640] Call Trace:
[  317.655526][ T6640]  <TASK>
[  317.655534][ T6640]  dump_stack_lvl+0xe8/0x150
[  317.655565][ T6640]  sysfs_create_dir_ns+0x271/0x2a0
[  317.655591][ T6640]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  317.655617][ T6640]  ? rt_spin_unlock+0x163/0x200
[  317.655639][ T6640]  kobject_add_internal+0x62c/0xce0
[  317.655673][ T6640]  kobject_init_and_add+0x12b/0x1a0
[  317.655703][ T6640]  ? __pfx_kobject_init_and_add+0x10/0x10
[  317.655731][ T6640]  ? __raw_spin_lock_init+0x45/0x100
[  317.655753][ T6640]  ? __init_swait_queue_head+0xa8/0x150
[  317.655782][ T6640]  gfs2_sys_fs_add+0x257/0x480
[  317.655805][ T6640]  ? is_dynamic_key+0x1aa/0x1c0
[  317.655827][ T6640]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  317.655857][ T6640]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  317.655898][ T6640]  gfs2_fill_super+0x1368/0x20f0
[  317.655935][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  317.655959][ T6640]  ? rt_spin_unlock+0x157/0x200
[  317.655981][ T6640]  ? sb_set_blocksize+0x11b/0x210
[  317.656002][ T6640]  ? setup_bdev_super+0x586/0x680
[  317.656031][ T6640]  get_tree_bdev_flags+0x430/0x4f0
[  317.656056][ T6640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  317.656081][ T6640]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  317.656109][ T6640]  ? rcu_is_watching+0x15/0xb0
[  317.656137][ T6640]  gfs2_get_tree+0x51/0x1e0
[  317.656165][ T6640]  vfs_get_tree+0x92/0x2a0
[  317.656193][ T6640]  do_new_mount+0x319/0xdc0
[  317.656215][ T6640]  ? cap_capable+0x123/0x460
[  317.656240][ T6640]  ? __pfx_do_new_mount+0x10/0x10
[  317.656265][ T6640]  ? ns_capable+0x89/0xe0
[  317.656295][ T6640]  ? path_mount+0x647/0x1050
[  317.656321][ T6640]  ? user_path_at+0xd4/0x160
[  317.656347][ T6640]  __se_sys_mount+0x31d/0x420
[  317.656374][ T6640]  ? __pfx___se_sys_mount+0x10/0x10
[  317.656400][ T6640]  ? __x64_sys_mount+0x20/0xc0
[  317.656420][ T6640]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  317.656441][ T6640]  do_syscall_64+0x174/0x580
[  317.656462][ T6640]  ? trace_irq_disable+0x3b/0x140
[  317.656484][ T6640]  ? clear_bhb_loop+0x40/0x90
[  317.656507][ T6640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  317.656526][ T6640] RIP: 0033:0x7faedc0df0ca
[  317.656544][ T6640] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  317.656559][ T6640] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  317.656579][ T6640] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  317.656593][ T6640] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  317.656607][ T6640] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  317.656620][ T6640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  317.656633][ T6640] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  317.656663][ T6640]  </TASK>
[  317.663477][ T6640] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  317.663496][ T6640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  318.053234][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  318.126505][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
2026/07/12 02:01:17 executed programs: 227
[  318.527274][ T6644] loop1: detected capacity change from 0 to 32768
[  318.532558][ T6644] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  318.532578][ T6644] CPU: 1 UID: 0 PID: 6644 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  318.532599][ T6644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  318.532609][ T6644] Call Trace:
[  318.532616][ T6644]  <TASK>
[  318.532625][ T6644]  dump_stack_lvl+0xe8/0x150
[  318.532656][ T6644]  sysfs_create_dir_ns+0x271/0x2a0
[  318.532683][ T6644]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  318.532710][ T6644]  ? rt_spin_unlock+0x163/0x200
[  318.532730][ T6644]  kobject_add_internal+0x62c/0xce0
[  318.532763][ T6644]  kobject_init_and_add+0x12b/0x1a0
[  318.532793][ T6644]  ? __pfx_kobject_init_and_add+0x10/0x10
[  318.532820][ T6644]  ? __raw_spin_lock_init+0x45/0x100
[  318.532842][ T6644]  ? __init_swait_queue_head+0xa8/0x150
[  318.532872][ T6644]  gfs2_sys_fs_add+0x257/0x480
[  318.532893][ T6644]  ? is_dynamic_key+0x1aa/0x1c0
[  318.532918][ T6644]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  318.532949][ T6644]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  318.532986][ T6644]  gfs2_fill_super+0x1368/0x20f0
[  318.533022][ T6644]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.533045][ T6644]  ? rt_spin_unlock+0x157/0x200
[  318.533067][ T6644]  ? sb_set_blocksize+0x11b/0x210
[  318.533088][ T6644]  ? setup_bdev_super+0x586/0x680
[  318.533117][ T6644]  get_tree_bdev_flags+0x430/0x4f0
[  318.533143][ T6644]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.533167][ T6644]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  318.533195][ T6644]  ? rcu_is_watching+0x15/0xb0
[  318.533231][ T6644]  gfs2_get_tree+0x51/0x1e0
[  318.533260][ T6644]  vfs_get_tree+0x92/0x2a0
[  318.533288][ T6644]  do_new_mount+0x319/0xdc0
[  318.533309][ T6644]  ? cap_capable+0x123/0x460
[  318.533335][ T6644]  ? __pfx_do_new_mount+0x10/0x10
[  318.533358][ T6644]  ? ns_capable+0x89/0xe0
[  318.533382][ T6644]  ? path_mount+0x647/0x1050
[  318.533407][ T6644]  ? user_path_at+0xd4/0x160
[  318.533433][ T6644]  __se_sys_mount+0x31d/0x420
[  318.533461][ T6644]  ? __pfx___se_sys_mount+0x10/0x10
[  318.533489][ T6644]  ? __x64_sys_mount+0x20/0xc0
[  318.533510][ T6644]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.533530][ T6644]  do_syscall_64+0x174/0x580
[  318.533552][ T6644]  ? trace_irq_disable+0x3b/0x140
[  318.533573][ T6644]  ? clear_bhb_loop+0x40/0x90
[  318.533597][ T6644]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.533615][ T6644] RIP: 0033:0x7faedc0df0ca
[  318.533633][ T6644] 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
[  318.533648][ T6644] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  318.533668][ T6644] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  318.533683][ T6644] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  318.533697][ T6644] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  318.533710][ T6644] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  318.533722][ T6644] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  318.533752][ T6644]  </TASK>
[  318.533787][ T6644] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  318.533802][ T6644] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  318.689344][ T6644] Flush: task=syz.1.242[6644] dev=loop1 state=2
[  318.756826][ T6644] Teardown: task=syz.1.242[6644] dev=loop1 state=2
[  319.162740][ T6647] loop1: detected capacity change from 0 to 32768
[  319.166340][ T6647] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  319.166361][ T6647] CPU: 0 UID: 0 PID: 6647 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  319.166385][ T6647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  319.166396][ T6647] Call Trace:
[  319.166403][ T6647]  <TASK>
[  319.166412][ T6647]  dump_stack_lvl+0xe8/0x150
[  319.166445][ T6647]  sysfs_create_dir_ns+0x271/0x2a0
[  319.166471][ T6647]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  319.166497][ T6647]  ? rt_spin_unlock+0x163/0x200
[  319.166519][ T6647]  kobject_add_internal+0x62c/0xce0
[  319.166550][ T6647]  kobject_init_and_add+0x12b/0x1a0
[  319.166580][ T6647]  ? __pfx_kobject_init_and_add+0x10/0x10
[  319.166608][ T6647]  ? __raw_spin_lock_init+0x45/0x100
[  319.166629][ T6647]  ? __init_swait_queue_head+0xa8/0x150
[  319.166659][ T6647]  gfs2_sys_fs_add+0x257/0x480
[  319.166680][ T6647]  ? is_dynamic_key+0x1aa/0x1c0
[  319.166703][ T6647]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  319.166733][ T6647]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  319.166774][ T6647]  gfs2_fill_super+0x1368/0x20f0
[  319.166820][ T6647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  319.166842][ T6647]  ? rt_spin_unlock+0x157/0x200
[  319.166864][ T6647]  ? sb_set_blocksize+0x11b/0x210
[  319.166885][ T6647]  ? setup_bdev_super+0x586/0x680
[  319.166913][ T6647]  get_tree_bdev_flags+0x430/0x4f0
[  319.166939][ T6647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  319.166964][ T6647]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  319.166992][ T6647]  ? rcu_is_watching+0x15/0xb0
[  319.167022][ T6647]  gfs2_get_tree+0x51/0x1e0
[  319.167050][ T6647]  vfs_get_tree+0x92/0x2a0
[  319.167077][ T6647]  do_new_mount+0x319/0xdc0
[  319.167098][ T6647]  ? cap_capable+0x123/0x460
[  319.167124][ T6647]  ? __pfx_do_new_mount+0x10/0x10
[  319.167147][ T6647]  ? ns_capable+0x89/0xe0
[  319.167171][ T6647]  ? path_mount+0x647/0x1050
[  319.167196][ T6647]  ? user_path_at+0xd4/0x160
[  319.167222][ T6647]  __se_sys_mount+0x31d/0x420
[  319.167250][ T6647]  ? __pfx___se_sys_mount+0x10/0x10
[  319.167277][ T6647]  ? __x64_sys_mount+0x20/0xc0
[  319.167297][ T6647]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  319.167318][ T6647]  do_syscall_64+0x174/0x580
[  319.167339][ T6647]  ? trace_irq_disable+0x3b/0x140
[  319.167362][ T6647]  ? clear_bhb_loop+0x40/0x90
[  319.167385][ T6647]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  319.167404][ T6647] RIP: 0033:0x7faedc0df0ca
[  319.167422][ T6647] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  319.167437][ T6647] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  319.167456][ T6647] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  319.167469][ T6647] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  319.167482][ T6647] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  319.167496][ T6647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  319.167508][ T6647] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  319.167536][ T6647]  </TASK>
[  319.173423][ T6647] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  319.173442][ T6647] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  319.556854][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  319.636500][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  320.017980][ T6651] loop1: detected capacity change from 0 to 32768
[  320.025548][ T6651] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  320.025568][ T6651] CPU: 0 UID: 0 PID: 6651 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  320.025590][ T6651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  320.025601][ T6651] Call Trace:
[  320.025609][ T6651]  <TASK>
[  320.025617][ T6651]  dump_stack_lvl+0xe8/0x150
[  320.025652][ T6651]  sysfs_create_dir_ns+0x271/0x2a0
[  320.025678][ T6651]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  320.025705][ T6651]  ? rt_spin_unlock+0x163/0x200
[  320.025727][ T6651]  kobject_add_internal+0x62c/0xce0
[  320.025759][ T6651]  kobject_init_and_add+0x12b/0x1a0
[  320.025790][ T6651]  ? __pfx_kobject_init_and_add+0x10/0x10
[  320.025817][ T6651]  ? __raw_spin_lock_init+0x45/0x100
[  320.025838][ T6651]  ? __init_swait_queue_head+0xa8/0x150
[  320.025867][ T6651]  gfs2_sys_fs_add+0x257/0x480
[  320.025887][ T6651]  ? is_dynamic_key+0x1aa/0x1c0
[  320.025909][ T6651]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  320.025939][ T6651]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  320.025980][ T6651]  gfs2_fill_super+0x1368/0x20f0
[  320.026017][ T6651]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.026041][ T6651]  ? rt_spin_unlock+0x157/0x200
[  320.026063][ T6651]  ? sb_set_blocksize+0x11b/0x210
[  320.026085][ T6651]  ? setup_bdev_super+0x586/0x680
[  320.026114][ T6651]  get_tree_bdev_flags+0x430/0x4f0
[  320.026139][ T6651]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.026171][ T6651]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  320.026200][ T6651]  ? rcu_is_watching+0x15/0xb0
[  320.026229][ T6651]  gfs2_get_tree+0x51/0x1e0
[  320.026257][ T6651]  vfs_get_tree+0x92/0x2a0
[  320.026284][ T6651]  do_new_mount+0x319/0xdc0
[  320.026305][ T6651]  ? cap_capable+0x123/0x460
[  320.026332][ T6651]  ? __pfx_do_new_mount+0x10/0x10
[  320.026356][ T6651]  ? ns_capable+0x89/0xe0
[  320.026380][ T6651]  ? path_mount+0x647/0x1050
[  320.026403][ T6651]  ? user_path_at+0xd4/0x160
[  320.026428][ T6651]  __se_sys_mount+0x31d/0x420
[  320.026454][ T6651]  ? __pfx___se_sys_mount+0x10/0x10
[  320.026481][ T6651]  ? __x64_sys_mount+0x20/0xc0
[  320.026501][ T6651]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.026520][ T6651]  do_syscall_64+0x174/0x580
[  320.026541][ T6651]  ? trace_irq_disable+0x3b/0x140
[  320.026562][ T6651]  ? clear_bhb_loop+0x40/0x90
[  320.026585][ T6651]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.026603][ T6651] RIP: 0033:0x7faedc0df0ca
[  320.026622][ T6651] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  320.026637][ T6651] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  320.026657][ T6651] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  320.026671][ T6651] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  320.026685][ T6651] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  320.026698][ T6651] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  320.026710][ T6651] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  320.026741][ T6651]  </TASK>
[  320.032170][ T6651] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  320.032189][ T6651] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  320.204073][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  320.388057][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  320.576039][ T6654] loop1: detected capacity change from 0 to 32768
[  320.584954][ T6654] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  320.584974][ T6654] CPU: 0 UID: 0 PID: 6654 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  320.584996][ T6654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  320.585006][ T6654] Call Trace:
[  320.585013][ T6654]  <TASK>
[  320.585022][ T6654]  dump_stack_lvl+0xe8/0x150
[  320.585063][ T6654]  sysfs_create_dir_ns+0x271/0x2a0
[  320.585089][ T6654]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  320.585117][ T6654]  ? rt_spin_unlock+0x163/0x200
[  320.585139][ T6654]  kobject_add_internal+0x62c/0xce0
[  320.585171][ T6654]  kobject_init_and_add+0x12b/0x1a0
[  320.585201][ T6654]  ? __pfx_kobject_init_and_add+0x10/0x10
[  320.585227][ T6654]  ? __raw_spin_lock_init+0x45/0x100
[  320.585249][ T6654]  ? __init_swait_queue_head+0xa8/0x150
[  320.585278][ T6654]  gfs2_sys_fs_add+0x257/0x480
[  320.585297][ T6654]  ? is_dynamic_key+0x1aa/0x1c0
[  320.585320][ T6654]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  320.585349][ T6654]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  320.585390][ T6654]  gfs2_fill_super+0x1368/0x20f0
[  320.585427][ T6654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.585453][ T6654]  ? rt_spin_unlock+0x157/0x200
[  320.585475][ T6654]  ? sb_set_blocksize+0x11b/0x210
[  320.585497][ T6654]  ? setup_bdev_super+0x586/0x680
[  320.585526][ T6654]  get_tree_bdev_flags+0x430/0x4f0
[  320.585550][ T6654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.585575][ T6654]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  320.585603][ T6654]  ? rcu_is_watching+0x15/0xb0
[  320.585631][ T6654]  gfs2_get_tree+0x51/0x1e0
[  320.585659][ T6654]  vfs_get_tree+0x92/0x2a0
[  320.585686][ T6654]  do_new_mount+0x319/0xdc0
[  320.585707][ T6654]  ? cap_capable+0x123/0x460
[  320.585734][ T6654]  ? __pfx_do_new_mount+0x10/0x10
[  320.585758][ T6654]  ? ns_capable+0x89/0xe0
[  320.585783][ T6654]  ? path_mount+0x647/0x1050
[  320.585808][ T6654]  ? user_path_at+0xd4/0x160
[  320.585834][ T6654]  __se_sys_mount+0x31d/0x420
[  320.585861][ T6654]  ? __pfx___se_sys_mount+0x10/0x10
[  320.585889][ T6654]  ? __x64_sys_mount+0x20/0xc0
[  320.585910][ T6654]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.585931][ T6654]  do_syscall_64+0x174/0x580
[  320.585953][ T6654]  ? trace_irq_disable+0x3b/0x140
[  320.585975][ T6654]  ? clear_bhb_loop+0x40/0x90
[  320.585997][ T6654]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.586016][ T6654] RIP: 0033:0x7faedc0df0ca
[  320.586033][ T6654] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  320.586055][ T6654] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  320.586076][ T6654] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  320.586090][ T6654] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  320.586103][ T6654] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  320.586116][ T6654] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  320.586128][ T6654] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  320.586159][ T6654]  </TASK>
[  320.589605][ T6654] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  320.589624][ T6654] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  320.680791][ T6654] Flush: task=syz.1.246[6654] dev=loop1 state=2
[  320.767349][ T6654] Teardown: task=syz.1.246[6654] dev=loop1 state=2
[  321.183779][ T6657] loop1: detected capacity change from 0 to 32768
[  321.203428][ T6657] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  321.203462][ T6657] CPU: 0 UID: 0 PID: 6657 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  321.203484][ T6657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  321.203495][ T6657] Call Trace:
[  321.203502][ T6657]  <TASK>
[  321.203518][ T6657]  dump_stack_lvl+0xe8/0x150
[  321.203551][ T6657]  sysfs_create_dir_ns+0x271/0x2a0
[  321.203576][ T6657]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  321.203604][ T6657]  ? rt_spin_unlock+0x163/0x200
[  321.203625][ T6657]  kobject_add_internal+0x62c/0xce0
[  321.203657][ T6657]  kobject_init_and_add+0x12b/0x1a0
[  321.203688][ T6657]  ? __pfx_kobject_init_and_add+0x10/0x10
[  321.203715][ T6657]  ? __raw_spin_lock_init+0x45/0x100
[  321.203737][ T6657]  ? __init_swait_queue_head+0xa8/0x150
[  321.203766][ T6657]  gfs2_sys_fs_add+0x257/0x480
[  321.203787][ T6657]  ? is_dynamic_key+0x1aa/0x1c0
[  321.203809][ T6657]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  321.203838][ T6657]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  321.203877][ T6657]  gfs2_fill_super+0x1368/0x20f0
[  321.203916][ T6657]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.203939][ T6657]  ? rt_spin_unlock+0x157/0x200
[  321.203961][ T6657]  ? sb_set_blocksize+0x11b/0x210
[  321.203984][ T6657]  ? setup_bdev_super+0x586/0x680
[  321.204011][ T6657]  get_tree_bdev_flags+0x430/0x4f0
[  321.204038][ T6657]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.204062][ T6657]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  321.204090][ T6657]  ? rcu_is_watching+0x15/0xb0
[  321.204119][ T6657]  gfs2_get_tree+0x51/0x1e0
[  321.204148][ T6657]  vfs_get_tree+0x92/0x2a0
[  321.204175][ T6657]  do_new_mount+0x319/0xdc0
[  321.204195][ T6657]  ? cap_capable+0x123/0x460
[  321.204222][ T6657]  ? __pfx_do_new_mount+0x10/0x10
[  321.204246][ T6657]  ? ns_capable+0x89/0xe0
[  321.204270][ T6657]  ? path_mount+0x647/0x1050
[  321.204295][ T6657]  ? user_path_at+0xd4/0x160
[  321.204321][ T6657]  __se_sys_mount+0x31d/0x420
[  321.204348][ T6657]  ? __pfx___se_sys_mount+0x10/0x10
[  321.204376][ T6657]  ? __x64_sys_mount+0x20/0xc0
[  321.204397][ T6657]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.204418][ T6657]  do_syscall_64+0x174/0x580
[  321.204438][ T6657]  ? trace_irq_disable+0x3b/0x140
[  321.204460][ T6657]  ? clear_bhb_loop+0x40/0x90
[  321.204483][ T6657]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.204502][ T6657] RIP: 0033:0x7faedc0df0ca
[  321.204526][ T6657] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  321.204542][ T6657] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  321.204562][ T6657] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  321.204577][ T6657] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  321.204590][ T6657] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  321.204603][ T6657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  321.204616][ T6657] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  321.204646][ T6657]  </TASK>
[  321.214513][ T6657] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  321.214532][ T6657] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  321.338134][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  321.586497][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  321.747349][ T6660] loop1: detected capacity change from 0 to 32768
[  321.753743][ T6660] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  321.753763][ T6660] CPU: 0 UID: 0 PID: 6660 Comm: syz.1.248 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  321.753784][ T6660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  321.753795][ T6660] Call Trace:
[  321.753802][ T6660]  <TASK>
[  321.753811][ T6660]  dump_stack_lvl+0xe8/0x150
[  321.753845][ T6660]  sysfs_create_dir_ns+0x271/0x2a0
[  321.753870][ T6660]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  321.753896][ T6660]  ? rt_spin_unlock+0x163/0x200
[  321.753918][ T6660]  kobject_add_internal+0x62c/0xce0
[  321.753949][ T6660]  kobject_init_and_add+0x12b/0x1a0
[  321.753990][ T6660]  ? __pfx_kobject_init_and_add+0x10/0x10
[  321.754019][ T6660]  ? __raw_spin_lock_init+0x45/0x100
[  321.754040][ T6660]  ? __init_swait_queue_head+0xa8/0x150
[  321.754069][ T6660]  gfs2_sys_fs_add+0x257/0x480
[  321.754089][ T6660]  ? is_dynamic_key+0x1aa/0x1c0
[  321.754112][ T6660]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  321.754141][ T6660]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  321.754182][ T6660]  gfs2_fill_super+0x1368/0x20f0
[  321.754219][ T6660]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.754242][ T6660]  ? rt_spin_unlock+0x157/0x200
[  321.754265][ T6660]  ? sb_set_blocksize+0x11b/0x210
[  321.754285][ T6660]  ? setup_bdev_super+0x586/0x680
[  321.754313][ T6660]  get_tree_bdev_flags+0x430/0x4f0
[  321.754340][ T6660]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.754363][ T6660]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  321.754391][ T6660]  ? rcu_is_watching+0x15/0xb0
[  321.754418][ T6660]  gfs2_get_tree+0x51/0x1e0
[  321.754444][ T6660]  vfs_get_tree+0x92/0x2a0
[  321.754480][ T6660]  do_new_mount+0x319/0xdc0
[  321.754500][ T6660]  ? cap_capable+0x123/0x460
[  321.754527][ T6660]  ? __pfx_do_new_mount+0x10/0x10
[  321.754550][ T6660]  ? ns_capable+0x89/0xe0
[  321.754574][ T6660]  ? path_mount+0x647/0x1050
[  321.754599][ T6660]  ? user_path_at+0xd4/0x160
[  321.754625][ T6660]  __se_sys_mount+0x31d/0x420
[  321.754652][ T6660]  ? __pfx___se_sys_mount+0x10/0x10
[  321.754680][ T6660]  ? __x64_sys_mount+0x20/0xc0
[  321.754700][ T6660]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.754721][ T6660]  do_syscall_64+0x174/0x580
[  321.754743][ T6660]  ? trace_irq_disable+0x3b/0x140
[  321.754764][ T6660]  ? clear_bhb_loop+0x40/0x90
[  321.754786][ T6660]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.754804][ T6660] RIP: 0033:0x7faedc0df0ca
[  321.754822][ T6660] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  321.754837][ T6660] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  321.754858][ T6660] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  321.754872][ T6660] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  321.754886][ T6660] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  321.754899][ T6660] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  321.754911][ T6660] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  321.754940][ T6660]  </TASK>
[  321.754970][ T6660] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  321.755008][ T6660] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  322.127607][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  322.206498][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  322.226183][ T6663] loop1: detected capacity change from 0 to 32768
[  322.240332][ T6663] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  322.240352][ T6663] CPU: 0 UID: 0 PID: 6663 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  322.240374][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  322.240385][ T6663] Call Trace:
[  322.240393][ T6663]  <TASK>
[  322.240401][ T6663]  dump_stack_lvl+0xe8/0x150
[  322.240440][ T6663]  sysfs_create_dir_ns+0x271/0x2a0
[  322.240467][ T6663]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  322.240495][ T6663]  ? rt_spin_unlock+0x163/0x200
[  322.240516][ T6663]  kobject_add_internal+0x62c/0xce0
[  322.240550][ T6663]  kobject_init_and_add+0x12b/0x1a0
[  322.240582][ T6663]  ? __pfx_kobject_init_and_add+0x10/0x10
[  322.240609][ T6663]  ? __raw_spin_lock_init+0x45/0x100
[  322.240631][ T6663]  ? __init_swait_queue_head+0xa8/0x150
[  322.240661][ T6663]  gfs2_sys_fs_add+0x257/0x480
[  322.240682][ T6663]  ? is_dynamic_key+0x1aa/0x1c0
[  322.240705][ T6663]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  322.240736][ T6663]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  322.240776][ T6663]  gfs2_fill_super+0x1368/0x20f0
[  322.240814][ T6663]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.240837][ T6663]  ? rt_spin_unlock+0x157/0x200
[  322.240859][ T6663]  ? sb_set_blocksize+0x11b/0x210
[  322.240881][ T6663]  ? setup_bdev_super+0x586/0x680
[  322.240910][ T6663]  get_tree_bdev_flags+0x430/0x4f0
[  322.240936][ T6663]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.240961][ T6663]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  322.240990][ T6663]  ? rcu_is_watching+0x15/0xb0
[  322.241018][ T6663]  gfs2_get_tree+0x51/0x1e0
[  322.241047][ T6663]  vfs_get_tree+0x92/0x2a0
[  322.241073][ T6663]  do_new_mount+0x319/0xdc0
[  322.241094][ T6663]  ? cap_capable+0x123/0x460
[  322.241120][ T6663]  ? __pfx_do_new_mount+0x10/0x10
[  322.241145][ T6663]  ? ns_capable+0x89/0xe0
[  322.241170][ T6663]  ? path_mount+0x647/0x1050
[  322.241194][ T6663]  ? user_path_at+0xd4/0x160
[  322.241220][ T6663]  __se_sys_mount+0x31d/0x420
[  322.241248][ T6663]  ? __pfx___se_sys_mount+0x10/0x10
[  322.241277][ T6663]  ? __x64_sys_mount+0x20/0xc0
[  322.241299][ T6663]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.241320][ T6663]  do_syscall_64+0x174/0x580
[  322.241341][ T6663]  ? trace_irq_disable+0x3b/0x140
[  322.241363][ T6663]  ? clear_bhb_loop+0x40/0x90
[  322.241386][ T6663]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.241406][ T6663] RIP: 0033:0x7faedc0df0ca
[  322.241429][ T6663] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  322.241444][ T6663] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  322.241465][ T6663] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  322.241480][ T6663] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  322.241494][ T6663] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  322.241507][ T6663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  322.241520][ T6663] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  322.241552][ T6663]  </TASK>
[  322.241577][ T6663] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  322.241615][ T6663] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  322.251587][ T6663] Flush: task=syz.1.249[6663] dev=loop1 state=2
[  322.596592][ T6663] Teardown: task=syz.1.249[6663] dev=loop1 state=2
[  322.954878][ T6666] loop1: detected capacity change from 0 to 32768
[  322.959900][ T6666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  322.959920][ T6666] CPU: 0 UID: 0 PID: 6666 Comm: syz.1.250 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  322.959942][ T6666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  322.959953][ T6666] Call Trace:
[  322.959961][ T6666]  <TASK>
[  322.959969][ T6666]  dump_stack_lvl+0xe8/0x150
[  322.960002][ T6666]  sysfs_create_dir_ns+0x271/0x2a0
[  322.960027][ T6666]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  322.960054][ T6666]  ? rt_spin_unlock+0x163/0x200
[  322.960076][ T6666]  kobject_add_internal+0x62c/0xce0
[  322.960108][ T6666]  kobject_init_and_add+0x12b/0x1a0
[  322.960137][ T6666]  ? __pfx_kobject_init_and_add+0x10/0x10
[  322.960164][ T6666]  ? __raw_spin_lock_init+0x45/0x100
[  322.960185][ T6666]  ? __init_swait_queue_head+0xa8/0x150
[  322.960214][ T6666]  gfs2_sys_fs_add+0x257/0x480
[  322.960234][ T6666]  ? is_dynamic_key+0x1aa/0x1c0
[  322.960255][ T6666]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  322.960285][ T6666]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  322.960324][ T6666]  gfs2_fill_super+0x1368/0x20f0
[  322.960367][ T6666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.960390][ T6666]  ? rt_spin_unlock+0x157/0x200
[  322.960414][ T6666]  ? sb_set_blocksize+0x11b/0x210
[  322.960435][ T6666]  ? setup_bdev_super+0x586/0x680
[  322.960463][ T6666]  get_tree_bdev_flags+0x430/0x4f0
[  322.960488][ T6666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.960513][ T6666]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  322.960541][ T6666]  ? rcu_is_watching+0x15/0xb0
[  322.960569][ T6666]  gfs2_get_tree+0x51/0x1e0
[  322.960596][ T6666]  vfs_get_tree+0x92/0x2a0
[  322.960623][ T6666]  do_new_mount+0x319/0xdc0
[  322.960644][ T6666]  ? cap_capable+0x123/0x460
[  322.960670][ T6666]  ? __pfx_do_new_mount+0x10/0x10
[  322.960693][ T6666]  ? ns_capable+0x89/0xe0
[  322.960717][ T6666]  ? path_mount+0x647/0x1050
[  322.960741][ T6666]  ? user_path_at+0xd4/0x160
[  322.960766][ T6666]  __se_sys_mount+0x31d/0x420
[  322.960793][ T6666]  ? __pfx___se_sys_mount+0x10/0x10
[  322.960821][ T6666]  ? __x64_sys_mount+0x20/0xc0
[  322.960840][ T6666]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.960860][ T6666]  do_syscall_64+0x174/0x580
[  322.960880][ T6666]  ? trace_irq_disable+0x3b/0x140
[  322.960901][ T6666]  ? clear_bhb_loop+0x40/0x90
[  322.960924][ T6666]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.960942][ T6666] RIP: 0033:0x7faedc0df0ca
[  322.960959][ T6666] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  322.960975][ T6666] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  322.960994][ T6666] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  322.961008][ T6666] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  322.961022][ T6666] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  322.961035][ T6666] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  322.961047][ T6666] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  322.961076][ T6666]  </TASK>
[  322.961517][ T6666] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  322.961534][ T6666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  323.367036][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  323.447751][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
2026/07/12 02:01:22 executed programs: 237
[  323.820365][ T6670] loop1: detected capacity change from 0 to 32768
[  323.833874][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  323.833895][ T6670] CPU: 0 UID: 0 PID: 6670 Comm: syz.1.252 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  323.833916][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  323.833926][ T6670] Call Trace:
[  323.833934][ T6670]  <TASK>
[  323.833943][ T6670]  dump_stack_lvl+0xe8/0x150
[  323.833975][ T6670]  sysfs_create_dir_ns+0x271/0x2a0
[  323.834001][ T6670]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  323.834028][ T6670]  ? rt_spin_unlock+0x163/0x200
[  323.834050][ T6670]  kobject_add_internal+0x62c/0xce0
[  323.834082][ T6670]  kobject_init_and_add+0x12b/0x1a0
[  323.834113][ T6670]  ? __pfx_kobject_init_and_add+0x10/0x10
[  323.834141][ T6670]  ? __raw_spin_lock_init+0x45/0x100
[  323.834163][ T6670]  ? __init_swait_queue_head+0xa8/0x150
[  323.834193][ T6670]  gfs2_sys_fs_add+0x257/0x480
[  323.834213][ T6670]  ? is_dynamic_key+0x1aa/0x1c0
[  323.834235][ T6670]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  323.834266][ T6670]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  323.834306][ T6670]  gfs2_fill_super+0x1368/0x20f0
[  323.834349][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.834371][ T6670]  ? rt_spin_unlock+0x157/0x200
[  323.834395][ T6670]  ? sb_set_blocksize+0x11b/0x210
[  323.834416][ T6670]  ? setup_bdev_super+0x586/0x680
[  323.834444][ T6670]  get_tree_bdev_flags+0x430/0x4f0
[  323.834469][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.834492][ T6670]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  323.834519][ T6670]  ? rcu_is_watching+0x15/0xb0
[  323.834548][ T6670]  gfs2_get_tree+0x51/0x1e0
[  323.834575][ T6670]  vfs_get_tree+0x92/0x2a0
[  323.834601][ T6670]  do_new_mount+0x319/0xdc0
[  323.834623][ T6670]  ? cap_capable+0x123/0x460
[  323.834648][ T6670]  ? __pfx_do_new_mount+0x10/0x10
[  323.834671][ T6670]  ? ns_capable+0x89/0xe0
[  323.834695][ T6670]  ? path_mount+0x647/0x1050
[  323.834718][ T6670]  ? user_path_at+0xd4/0x160
[  323.834744][ T6670]  __se_sys_mount+0x31d/0x420
[  323.834772][ T6670]  ? __pfx___se_sys_mount+0x10/0x10
[  323.834799][ T6670]  ? __x64_sys_mount+0x20/0xc0
[  323.834818][ T6670]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.834838][ T6670]  do_syscall_64+0x174/0x580
[  323.834859][ T6670]  ? trace_irq_disable+0x3b/0x140
[  323.834881][ T6670]  ? clear_bhb_loop+0x40/0x90
[  323.834904][ T6670]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.834923][ T6670] RIP: 0033:0x7faedc0df0ca
[  323.834941][ T6670] 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
[  323.834957][ T6670] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  323.834976][ T6670] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  323.834990][ T6670] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  323.835003][ T6670] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  323.835015][ T6670] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  323.835027][ T6670] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  323.835056][ T6670]  </TASK>
[  323.835656][ T6670] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  323.835674][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  323.997990][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  324.186518][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  324.362528][ T6673] loop1: detected capacity change from 0 to 32768
[  324.374672][ T6673] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  324.374693][ T6673] CPU: 0 UID: 0 PID: 6673 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  324.374714][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  324.374725][ T6673] Call Trace:
[  324.374732][ T6673]  <TASK>
[  324.374741][ T6673]  dump_stack_lvl+0xe8/0x150
[  324.374773][ T6673]  sysfs_create_dir_ns+0x271/0x2a0
[  324.374801][ T6673]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  324.374829][ T6673]  ? rt_spin_unlock+0x163/0x200
[  324.374850][ T6673]  kobject_add_internal+0x62c/0xce0
[  324.374882][ T6673]  kobject_init_and_add+0x12b/0x1a0
[  324.374913][ T6673]  ? __pfx_kobject_init_and_add+0x10/0x10
[  324.374940][ T6673]  ? __raw_spin_lock_init+0x45/0x100
[  324.374961][ T6673]  ? __init_swait_queue_head+0xa8/0x150
[  324.374990][ T6673]  gfs2_sys_fs_add+0x257/0x480
[  324.375010][ T6673]  ? is_dynamic_key+0x1aa/0x1c0
[  324.375033][ T6673]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  324.375062][ T6673]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  324.375101][ T6673]  gfs2_fill_super+0x1368/0x20f0
[  324.375138][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.375162][ T6673]  ? rt_spin_unlock+0x157/0x200
[  324.375184][ T6673]  ? sb_set_blocksize+0x11b/0x210
[  324.375206][ T6673]  ? setup_bdev_super+0x586/0x680
[  324.375235][ T6673]  get_tree_bdev_flags+0x430/0x4f0
[  324.375269][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.375293][ T6673]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  324.375322][ T6673]  ? rcu_is_watching+0x15/0xb0
[  324.375351][ T6673]  gfs2_get_tree+0x51/0x1e0
[  324.375379][ T6673]  vfs_get_tree+0x92/0x2a0
[  324.375406][ T6673]  do_new_mount+0x319/0xdc0
[  324.375427][ T6673]  ? cap_capable+0x123/0x460
[  324.375453][ T6673]  ? __pfx_do_new_mount+0x10/0x10
[  324.375482][ T6673]  ? ns_capable+0x89/0xe0
[  324.375506][ T6673]  ? path_mount+0x647/0x1050
[  324.375531][ T6673]  ? user_path_at+0xd4/0x160
[  324.375558][ T6673]  __se_sys_mount+0x31d/0x420
[  324.375586][ T6673]  ? __pfx___se_sys_mount+0x10/0x10
[  324.375614][ T6673]  ? __x64_sys_mount+0x20/0xc0
[  324.375635][ T6673]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.375656][ T6673]  do_syscall_64+0x174/0x580
[  324.375677][ T6673]  ? trace_irq_disable+0x3b/0x140
[  324.375698][ T6673]  ? clear_bhb_loop+0x40/0x90
[  324.375720][ T6673]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.375738][ T6673] RIP: 0033:0x7faedc0df0ca
[  324.375756][ T6673] 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
[  324.375771][ T6673] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  324.375792][ T6673] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  324.375806][ T6673] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  324.375819][ T6673] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  324.375832][ T6673] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  324.375848][ T6673] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  324.375878][ T6673]  </TASK>
[  324.376634][ T6673] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  324.376653][ T6673] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  324.526081][ T6673] Flush: task=syz.1.253[6673] dev=loop1 state=2
[  324.596607][ T6673] Teardown: task=syz.1.253[6673] dev=loop1 state=2
[  325.002106][ T6676] loop1: detected capacity change from 0 to 32768
[  325.008084][ T6676] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  325.008105][ T6676] CPU: 0 UID: 0 PID: 6676 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.008127][ T6676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  325.008137][ T6676] Call Trace:
[  325.008145][ T6676]  <TASK>
[  325.008152][ T6676]  dump_stack_lvl+0xe8/0x150
[  325.008186][ T6676]  sysfs_create_dir_ns+0x271/0x2a0
[  325.008211][ T6676]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.008237][ T6676]  ? rt_spin_unlock+0x163/0x200
[  325.008257][ T6676]  kobject_add_internal+0x62c/0xce0
[  325.008290][ T6676]  kobject_init_and_add+0x12b/0x1a0
[  325.008320][ T6676]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.008346][ T6676]  ? __raw_spin_lock_init+0x45/0x100
[  325.008367][ T6676]  ? __init_swait_queue_head+0xa8/0x150
[  325.008396][ T6676]  gfs2_sys_fs_add+0x257/0x480
[  325.008417][ T6676]  ? is_dynamic_key+0x1aa/0x1c0
[  325.008438][ T6676]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.008470][ T6676]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.008510][ T6676]  gfs2_fill_super+0x1368/0x20f0
[  325.008548][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.008570][ T6676]  ? rt_spin_unlock+0x157/0x200
[  325.008591][ T6676]  ? sb_set_blocksize+0x11b/0x210
[  325.008613][ T6676]  ? setup_bdev_super+0x586/0x680
[  325.008641][ T6676]  get_tree_bdev_flags+0x430/0x4f0
[  325.008666][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.008690][ T6676]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.008724][ T6676]  ? rcu_is_watching+0x15/0xb0
[  325.008754][ T6676]  gfs2_get_tree+0x51/0x1e0
[  325.008780][ T6676]  vfs_get_tree+0x92/0x2a0
[  325.008807][ T6676]  do_new_mount+0x319/0xdc0
[  325.008828][ T6676]  ? cap_capable+0x123/0x460
[  325.008853][ T6676]  ? __pfx_do_new_mount+0x10/0x10
[  325.008876][ T6676]  ? ns_capable+0x89/0xe0
[  325.008900][ T6676]  ? path_mount+0x647/0x1050
[  325.008924][ T6676]  ? user_path_at+0xd4/0x160
[  325.008950][ T6676]  __se_sys_mount+0x31d/0x420
[  325.008976][ T6676]  ? __pfx___se_sys_mount+0x10/0x10
[  325.009004][ T6676]  ? __x64_sys_mount+0x20/0xc0
[  325.009025][ T6676]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.009045][ T6676]  do_syscall_64+0x174/0x580
[  325.009066][ T6676]  ? trace_irq_disable+0x3b/0x140
[  325.009087][ T6676]  ? clear_bhb_loop+0x40/0x90
[  325.009109][ T6676]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.009127][ T6676] RIP: 0033:0x7faedc0df0ca
[  325.009145][ T6676] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  325.009160][ T6676] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.009179][ T6676] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  325.009193][ T6676] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  325.009207][ T6676] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  325.009219][ T6676] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  325.009231][ T6676] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  325.009261][ T6676]  </TASK>
[  325.009295][ T6676] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.009310][ T6676] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.404770][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  325.476539][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  325.879234][ T6680] loop1: detected capacity change from 0 to 32768
[  325.893237][ T6680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  325.893256][ T6680] CPU: 0 UID: 0 PID: 6680 Comm: syz.1.256 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.893277][ T6680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  325.893287][ T6680] Call Trace:
[  325.893294][ T6680]  <TASK>
[  325.893303][ T6680]  dump_stack_lvl+0xe8/0x150
[  325.893334][ T6680]  sysfs_create_dir_ns+0x271/0x2a0
[  325.893368][ T6680]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.893395][ T6680]  ? rt_spin_unlock+0x163/0x200
[  325.893416][ T6680]  kobject_add_internal+0x62c/0xce0
[  325.893449][ T6680]  kobject_init_and_add+0x12b/0x1a0
[  325.893479][ T6680]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.893505][ T6680]  ? __raw_spin_lock_init+0x45/0x100
[  325.893526][ T6680]  ? __init_swait_queue_head+0xa8/0x150
[  325.893555][ T6680]  gfs2_sys_fs_add+0x257/0x480
[  325.893574][ T6680]  ? is_dynamic_key+0x1aa/0x1c0
[  325.893595][ T6680]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.893622][ T6680]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.893674][ T6680]  gfs2_fill_super+0x1368/0x20f0
[  325.893710][ T6680]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.893732][ T6680]  ? rt_spin_unlock+0x157/0x200
[  325.893752][ T6680]  ? sb_set_blocksize+0x11b/0x210
[  325.893773][ T6680]  ? setup_bdev_super+0x586/0x680
[  325.893802][ T6680]  get_tree_bdev_flags+0x430/0x4f0
[  325.893828][ T6680]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.893852][ T6680]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.893881][ T6680]  ? rcu_is_watching+0x15/0xb0
[  325.893910][ T6680]  gfs2_get_tree+0x51/0x1e0
[  325.893938][ T6680]  vfs_get_tree+0x92/0x2a0
[  325.893964][ T6680]  do_new_mount+0x319/0xdc0
[  325.893985][ T6680]  ? cap_capable+0x123/0x460
[  325.894011][ T6680]  ? __pfx_do_new_mount+0x10/0x10
[  325.894034][ T6680]  ? ns_capable+0x89/0xe0
[  325.894059][ T6680]  ? path_mount+0x647/0x1050
[  325.894083][ T6680]  ? user_path_at+0xd4/0x160
[  325.894108][ T6680]  __se_sys_mount+0x31d/0x420
[  325.894136][ T6680]  ? __pfx___se_sys_mount+0x10/0x10
[  325.894164][ T6680]  ? __x64_sys_mount+0x20/0xc0
[  325.894184][ T6680]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.894205][ T6680]  do_syscall_64+0x174/0x580
[  325.894226][ T6680]  ? trace_irq_disable+0x3b/0x140
[  325.894248][ T6680]  ? clear_bhb_loop+0x40/0x90
[  325.894270][ T6680]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.894289][ T6680] RIP: 0033:0x7faedc0df0ca
[  325.894307][ T6680] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  325.894323][ T6680] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.894352][ T6680] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  325.894366][ T6680] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  325.894380][ T6680] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  325.894392][ T6680] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  325.894405][ T6680] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  325.894434][ T6680]  </TASK>
[  325.894474][ T6680] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.895447][ T6680] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.001057][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  326.086509][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  326.434182][ T6683] loop1: detected capacity change from 0 to 32768
[  326.452743][ T6683] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.452764][ T6683] CPU: 1 UID: 0 PID: 6683 Comm: syz.1.257 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.452785][ T6683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.452795][ T6683] Call Trace:
[  326.452803][ T6683]  <TASK>
[  326.452811][ T6683]  dump_stack_lvl+0xe8/0x150
[  326.452843][ T6683]  sysfs_create_dir_ns+0x271/0x2a0
[  326.452869][ T6683]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.452895][ T6683]  ? rt_spin_unlock+0x163/0x200
[  326.452916][ T6683]  kobject_add_internal+0x62c/0xce0
[  326.452949][ T6683]  kobject_init_and_add+0x12b/0x1a0
[  326.452973][ T6683]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.452988][ T6683]  ? __raw_spin_lock_init+0x45/0x100
[  326.453000][ T6683]  ? __init_swait_queue_head+0xa8/0x150
[  326.453018][ T6683]  gfs2_sys_fs_add+0x257/0x480
[  326.453029][ T6683]  ? is_dynamic_key+0x1aa/0x1c0
[  326.453042][ T6683]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.453058][ T6683]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.453081][ T6683]  gfs2_fill_super+0x1368/0x20f0
[  326.453105][ T6683]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.453119][ T6683]  ? rt_spin_unlock+0x157/0x200
[  326.453131][ T6683]  ? sb_set_blocksize+0x11b/0x210
[  326.453143][ T6683]  ? setup_bdev_super+0x586/0x680
[  326.453159][ T6683]  get_tree_bdev_flags+0x430/0x4f0
[  326.453175][ T6683]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.453189][ T6683]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.453206][ T6683]  ? rcu_is_watching+0x15/0xb0
[  326.453222][ T6683]  gfs2_get_tree+0x51/0x1e0
[  326.453239][ T6683]  vfs_get_tree+0x92/0x2a0
[  326.453255][ T6683]  do_new_mount+0x319/0xdc0
[  326.453267][ T6683]  ? cap_capable+0x123/0x460
[  326.453281][ T6683]  ? __pfx_do_new_mount+0x10/0x10
[  326.453295][ T6683]  ? ns_capable+0x89/0xe0
[  326.453309][ T6683]  ? path_mount+0x647/0x1050
[  326.453322][ T6683]  ? user_path_at+0xd4/0x160
[  326.453337][ T6683]  __se_sys_mount+0x31d/0x420
[  326.453352][ T6683]  ? __pfx___se_sys_mount+0x10/0x10
[  326.453368][ T6683]  ? __x64_sys_mount+0x20/0xc0
[  326.453379][ T6683]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.453391][ T6683]  do_syscall_64+0x174/0x580
[  326.453403][ T6683]  ? trace_irq_disable+0x3b/0x140
[  326.453416][ T6683]  ? clear_bhb_loop+0x40/0x90
[  326.453428][ T6683]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.453439][ T6683] RIP: 0033:0x7faedc0df0ca
[  326.453449][ T6683] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  326.453458][ T6683] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.453469][ T6683] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  326.453477][ T6683] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  326.453484][ T6683] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  326.453491][ T6683] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.453498][ T6683] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  326.453513][ T6683]  </TASK>
[  326.453716][ T6683] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.453732][ T6683] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.829023][ T5962] Flush: task=udevd[5962] dev=loop1 state=2
[  326.896505][ T5962] Teardown: task=udevd[5962] dev=loop1 state=2
[  326.928818][ T6686] loop1: detected capacity change from 0 to 32768
[  326.937602][ T6686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.937623][ T6686] CPU: 1 UID: 0 PID: 6686 Comm: syz.1.258 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.937645][ T6686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.937660][ T6686] Call Trace:
[  326.937668][ T6686]  <TASK>
[  326.937676][ T6686]  dump_stack_lvl+0xe8/0x150
[  326.937706][ T6686]  sysfs_create_dir_ns+0x271/0x2a0
[  326.937733][ T6686]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.937761][ T6686]  ? rt_spin_unlock+0x163/0x200
[  326.937782][ T6686]  kobject_add_internal+0x62c/0xce0
[  326.937814][ T6686]  kobject_init_and_add+0x12b/0x1a0
[  326.937845][ T6686]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.937871][ T6686]  ? __raw_spin_lock_init+0x45/0x100
[  326.937893][ T6686]  ? __init_swait_queue_head+0xa8/0x150
[  326.937922][ T6686]  gfs2_sys_fs_add+0x257/0x480
[  326.937942][ T6686]  ? is_dynamic_key+0x1aa/0x1c0
[  326.937964][ T6686]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.937994][ T6686]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.938036][ T6686]  gfs2_fill_super+0x1368/0x20f0
[  326.938081][ T6686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.938103][ T6686]  ? rt_spin_unlock+0x157/0x200
[  326.938124][ T6686]  ? sb_set_blocksize+0x11b/0x210
[  326.938146][ T6686]  ? setup_bdev_super+0x586/0x680
[  326.938174][ T6686]  get_tree_bdev_flags+0x430/0x4f0
[  326.938199][ T6686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.938223][ T6686]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.938251][ T6686]  ? rcu_is_watching+0x15/0xb0
[  326.938279][ T6686]  gfs2_get_tree+0x51/0x1e0
[  326.938306][ T6686]  vfs_get_tree+0x92/0x2a0
[  326.938333][ T6686]  do_new_mount+0x319/0xdc0
[  326.938355][ T6686]  ? cap_capable+0x123/0x460
[  326.938380][ T6686]  ? __pfx_do_new_mount+0x10/0x10
[  326.938403][ T6686]  ? ns_capable+0x89/0xe0
[  326.938427][ T6686]  ? path_mount+0x647/0x1050
[  326.938451][ T6686]  ? user_path_at+0xd4/0x160
[  326.938478][ T6686]  __se_sys_mount+0x31d/0x420
[  326.938504][ T6686]  ? __pfx___se_sys_mount+0x10/0x10
[  326.938532][ T6686]  ? __x64_sys_mount+0x20/0xc0
[  326.938552][ T6686]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.938576][ T6686]  do_syscall_64+0x174/0x580
[  326.938597][ T6686]  ? trace_irq_disable+0x3b/0x140
[  326.938618][ T6686]  ? clear_bhb_loop+0x40/0x90
[  326.938640][ T6686]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.938659][ T6686] RIP: 0033:0x7faedc0df0ca
[  326.938676][ T6686] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  326.938691][ T6686] RSP: 002b:00007ffd180d7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.938711][ T6686] RAX: ffffffffffffffda RBX: 00007ffd180d7bf0 RCX: 00007faedc0df0ca
[  326.938725][ T6686] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd180d7bb0
[  326.938738][ T6686] RBP: 000020000001f680 R08: 00007ffd180d7bf0 R09: 0000000000000000
[  326.938751][ T6686] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.938763][ T6686] R13: 00007ffd180d7bb0 R14: 000000000001f7dd R15: 0000200000000380
[  326.938793][ T6686]  </TASK>
[  326.938828][ T6686] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.938843][ T6686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.954176][ T6686] Flush: task=syz.1.258[6686] dev=loop1 state=2
[  327.036688][ T6686] Teardown: task=syz.1.258[6686] dev=loop1 state=2
[  327.260403][   T39] INFO: task kworker/0:3:5648 blocked in I/O wait for more than 143 seconds.
[  327.260424][   T39]       Not tainted syzkaller #0
[  327.260434][   T39] "echo 0 > /proc/sys/kernel/hung_task_time[  327.260434][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  327.260444][   T39] task:kworker/0:3     state:D stack:21312 pid:5648  tgid:5648  ppid:2      task_flags:0x4208060 flags:0x00080000
[  327.260489][   T39] Workqueue: gfs2_recovery gfs2_recover_func
[  327.260519][   T39] Call Trace:
[  327.260526][   T39]  <TASK>
[  327.260537][   T39]  __schedule+0x1709/0x5530
[  327.260587][   T39]  ? __pfx___schedule+0x10/0x10
[  327.260615][   T39]  ? schedule+0x90/0x2b0
[  327.260639][   T39]  schedule+0x164/0x2b0
[  327.260661][   T39]  io_schedule+0x7f/0xd0
[  327.260685][   T39]  folio_wait_bit_common+0x83c/0xbc0
[  327.260728][   T39]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  327.260757][   T39]  ? __pfx_wake_page_function+0x10/0x10
[  327.260801][   T39]  gfs2_jhead_process_page+0x17f/0x670
[  327.260832][   T39]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  327.260871][   T39]  gfs2_find_jhead+0xbe0/0xd20
[  327.260912][   T39]  gfs2_recover_func+0x6bd/0x1f00
[  327.260941][   T39]  ? unwind_next_frame+0x8f/0x2550
[  327.260976][   T39]  ? ret_from_fork_asm+0x1a/0x30
[  327.260999][   T39]  ? stack_trace_save+0xa9/0x100
[  327.261020][   T39]  ? __pfx_gfs2_recover_func+0x10/0x10
[  327.261055][   T39]  ? check_path+0x21/0x40
[  327.261083][   T39]  ? add_lock_to_list+0xc7/0x100
[  327.261109][   T39]  ? lockdep_unlock+0x5d/0xd0
[  327.261127][   T39]  ? __lock_acquire+0x14b9/0x2e40
[  327.261152][   T39]  ? __pfx_clockevents_program_event+0x10/0x10
[  327.261208][   T39]  ? rcu_is_watching+0x15/0xb0
[  327.261235][   T39]  ? process_one_work+0x7fd/0x1480
[  327.261260][   T39]  process_one_work+0xaaf/0x1480
[  327.261302][   T39]  ? __pfx_process_one_work+0x10/0x10
[  327.261322][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  327.261347][   T39]  ? assign_work+0x3cf/0x5d0
[  327.261375][   T39]  worker_thread+0xb05/0x10d0
[  327.261407][   T39]  ? __kthread_parkme+0x71/0x1f0
[  327.261441][   T39]  kthread+0x388/0x470
[  327.261459][   T39]  ? __pfx_worker_thread+0x10/0x10
[  327.261480][   T39]  ? __pfx_kthread+0x10/0x10
[  327.261498][   T39]  ret_from_fork+0x514/0xb70
[  327.261521][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  327.261538][   T39]  ? __switch_to+0xc89/0x1420
[  327.261566][   T39]  ? __pfx_kthread+0x10/0x10
[  327.261585][   T39]  ret_from_fork_asm+0x1a/0x30
[  327.261620][   T39]  </TASK>
[  327.261637][   T39] INFO: task syz.0.17:5952 blocked for more than 143 seconds.
[  327.261652][   T39]       Not tainted syzkaller #0
[  327.261661][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  327.261695][   T39] task:syz.0.17        state:D stack:23808 pid:5952  tgid:5952  ppid:5802   task_flags:0x400140 flags:0x00080002
[  327.261741][   T39] Call Trace:
[  327.261747][   T39]  <TASK>
[  327.261758][   T39]  __schedule+0x1709/0x5530
[  327.261807][   T39]  ? __pfx___schedule+0x10/0x10
[  327.261838][   T39]  ? schedule+0x90/0x2b0
[  327.261861][   T39]  schedule+0x164/0x2b0
[  327.261883][   T39]  bit_wait+0x11/0xd0
[  327.261905][   T39]  __wait_on_bit+0xac/0x2f0
[  327.261926][   T39]  ? __pfx_bit_wait+0x10/0x10
[  327.261950][   T39]  out_of_line_wait_on_bit+0x13b/0x190
[  327.261972][   T39]  ? __pfx_bit_wait+0x10/0x10
[  327.261994][   T39]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  327.262019][   T39]  ? __pfx_wake_bit_function+0x10/0x10
[  327.262063][   T39]  gfs2_recover_journal+0xda/0x140
[  327.262090][   T39]  init_journal+0x1af4/0x2330
[  327.262126][   T39]  ? init_inodes+0xdb/0x320
[  327.262156][   T39]  ? __pfx_init_journal+0x10/0x10
[  327.262194][   T39]  ? snprintf+0xe8/0x140
[  327.262215][   T39]  ? init_inodes+0xdb/0x320
[  327.262240][   T39]  ? __pfx_snprintf+0x10/0x10
[  327.262261][   T39]  ? gfs2_glock_nq_num+0x13d/0x170
[  327.262288][   T39]  init_inodes+0xdb/0x320
[  327.262316][   T39]  gfs2_fill_super+0x1982/0x20f0
[  327.262357][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.262381][   T39]  ? rt_spin_unlock+0x157/0x200
[  327.262402][   T39]  ? init_locking+0xb8/0x210
[  327.262427][   T39]  ? sb_set_blocksize+0x11b/0x210
[  327.262449][   T39]  ? setup_bdev_super+0x586/0x680
[  327.262479][   T39]  get_tree_bdev_flags+0x430/0x4f0
[  327.262506][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.262531][   T39]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  327.262560][   T39]  ? rcu_is_watching+0x15/0xb0
[  327.262589][   T39]  gfs2_get_tree+0x51/0x1e0
[  327.262619][   T39]  vfs_get_tree+0x92/0x2a0
[  327.262647][   T39]  do_new_mount+0x319/0xdc0
[  327.262668][   T39]  ? cap_capable+0x123/0x460
[  327.262694][   T39]  ? __pfx_do_new_mount+0x10/0x10
[  327.262718][   T39]  ? ns_capable+0x89/0xe0
[  327.262745][   T39]  ? path_mount+0x647/0x1050
[  327.262770][   T39]  ? user_path_at+0xd4/0x160
[  327.262797][   T39]  __se_sys_mount+0x31d/0x420
[  327.262825][   T39]  ? __pfx___se_sys_mount+0x10/0x10
[  327.262854][   T39]  ? __x64_sys_mount+0x20/0xc0
[  327.262875][   T39]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.262896][   T39]  do_syscall_64+0x174/0x580
[  327.262919][   T39]  ? trace_irq_disable+0x3b/0x140
[  327.262942][   T39]  ? clear_bhb_loop+0x40/0x90
[  327.262965][   T39]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.262984][   T39] RIP: 0033:0x7f63e44bf0ca
[  327.263003][   T39] RSP: 002b:00007ffe6ebd9f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  327.263022][   T39] RAX: ffffffffffffffda RBX: 00007ffe6ebda000 RCX: 00007f63e44bf0ca
[  327.263043][   T39] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe6ebd9fc0
[  327.263057][   T39] RBP: 000020000001f680 R08: 00007ffe6ebda000 R09: 0000000000000000
[  327.263071][   T39] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  327.263084][   T39] R13: 00007ffe6ebd9fc0 R14: 000000000001f7dd R15: 0000200000000380
[  327.263115][   T39]  </TASK>
[  327.263152][   T39] 
[  327.263152][   T39] Showing all locks held in the system:
[  327.263161][   T39] locks held by pr/legacy/17: 4, last CPU#0:
[  327.263177][   T39]  #0: ffffffff8e1b5a00 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[  327.263225][   T39]  #1: ffffffff8e09d2f8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[  327.263270][   T39]  #2: ffffffff99e47458 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x17c/0x1b40
[  327.263315][   T39]  #3: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  327.263367][   T39] locks held by khungtaskd/39: 1, last CPU#0:
[  327.263381][   T39]  #0: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  327.263429][   T39] locks held by kworker/u8:4/68: 2, on CPU#1:
[  327.263442][   T39]  #0: ffff88813fe5c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263489][   T39]  #1: ffffc9000153fc60 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263541][   T39] locks held by kworker/u8:9/1189: 2, on CPU#1:
[  327.263555][   T39]  #0: ffff88813fe5c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263601][   T39]  #1: ffffc90006b7fc60 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263659][   T39] locks held by getty/5350: 2, on CPU#1:
[  327.263674][   T39]  #0: ffff888036c130a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  327.263724][   T39]  #1: ffffc900044cb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360
[  327.263771][   T39] locks held by kworker/0:3/5648: 2, on CPU#0:
[  327.263783][   T39]  #0: ffff88801fbd1138 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263829][   T39]  #1: ffffc90004d77c60 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  327.263878][   T39] locks held by syz.0.17/5952: 1, on CPU#0:
[  327.263892][   T39]  #0: ffff88804192a0e0 (&type->s_umount_key#53/1){+.+.}-{4:4}, at: sget_fc+0x97c/0x1a60
[  327.263947][   T39] locks held by udevd/5962: 2, last CPU#1:
[  327.263961][   T39]  #0: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x8f/0x2550
[  327.264006][   T39]  #1: ffff8880453c7768 (&lockref->lock){+.+.}-{3:3}, at: rt_mutex_slowunlock+0xbf/0xa20
[  327.264057][   T39] locks held by syz.1.258/6686: 3, last CPU#1:
[  327.264071][   T39]  #0: ffff8880b8742d58 (&pcp->lock){+.+.}-{3:3}, at: free_frozen_page_commit+0x813/0x1850
[  327.264116][   T39]  #1: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x10c/0x2b0
[  327.264156][   T39]  #2: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  327.264204][   T39] 
[  327.264210][   T39] =============================================
[  327.264210][   T39] 
[  327.264229][   T39] NMI backtrace for cpu 0
[  327.264243][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.264265][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  327.264275][   T39] Call Trace:
[  327.264283][   T39]  <TASK>
[  327.264291][   T39]  dump_stack_lvl+0xe8/0x150
[  327.264317][   T39]  nmi_cpu_backtrace+0x274/0x2d0
[  327.264336][   T39]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  327.264365][   T39]  nmi_trigger_cpumask_backtrace+0x17a/0x380
[  327.264386][   T39]  sys_info+0x135/0x170
[  327.264410][   T39]  watchdog+0xfd7/0x1030
[  327.264437][   T39]  ? watchdog+0x1c7/0x1030
[  327.264464][   T39]  kthread+0x388/0x470
[  327.264483][   T39]  ? __pfx_watchdog+0x10/0x10
[  327.264501][   T39]  ? __pfx_kthread+0x10/0x10
[  327.264520][   T39]  ret_from_fork+0x514/0xb70
[  327.264541][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  327.264559][   T39]  ? __switch_to+0xc89/0x1420
[  327.264585][   T39]  ? __pfx_kthread+0x10/0x10
[  327.264604][   T39]  ret_from_fork_asm+0x1a/0x30
[  327.264635][   T39]  </TASK>
[  327.264642][   T39] Sending NMI from CPU 0 to CPUs 1:
[  327.264670][    C1] NMI backtrace for cpu 1
[  327.264687][    C1] CPU: 1 UID: 0 PID: 5962 Comm: udevd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.264705][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  327.264714][    C1] RIP: 0010:__lock_acquire+0x2d2/0x2e40
[  327.264734][    C1] Code: 83 0b 29 00 00 4c 89 7c 24 18 4b 8d 04 bf 89 f1 81 e1 ff 1f 00 00 48 c7 c2 00 e0 ff ff 49 23 54 c5 20 48 09 ca 49 89 54 c5 20 <48> 8b 94 24 28 01 00 00 49 89 54 c5 08 4d 89 5c c5 10 48 8b 94 24
[  327.264747][    C1] RSP: 0018:ffffc900056f6ff8 EFLAGS: 00000082
[  327.264761][    C1] RAX: 0000000000000005 RBX: 0000000000000000 RCX: 000000000000000b
[  327.264771][    C1] RDX: fe0000000002000b RSI: 000000000000000b RDI: ffff888038335dc0
[  327.264782][    C1] RBP: 0000000000000000 R08: 00000000044dcaff R09: 0000000000000000
[  327.264792][    C1] R10: 0000000000000000 R11: ffffffff8e1c3840 R12: 0000000000000000
[  327.264803][    C1] R13: ffff8880383369d8 R14: 0000000000000002 R15: 0000000000000001
[  327.264813][    C1] FS:  00007f27d6d77880(0000) GS:ffff888125d43000(0000) knlGS:0000000000000000
[  327.264827][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  327.264838][    C1] CR2: 00007faedc18cc2b CR3: 000000003e17a000 CR4: 00000000003526f0
[  327.264853][    C1] Call Trace:
[  327.264859][    C1]  <TASK>
[  327.264867][    C1]  ? lock_acquire+0x115/0x350
[  327.264888][    C1]  ? lock_acquire+0x115/0x350
[  327.264906][    C1]  lock_acquire+0x115/0x350
[  327.264922][    C1]  ? unwind_next_frame+0x8f/0x2550
[  327.264942][    C1]  ? unwind_next_frame+0x8f/0x2550
[  327.264957][    C1]  ? __kasan_slab_free+0x5c/0x80
[  327.264973][    C1]  ? unwind_next_frame+0x8f/0x2550
[  327.264990][    C1]  unwind_next_frame+0xac/0x2550
[  327.265005][    C1]  ? unwind_next_frame+0x8f/0x2550
[  327.265023][    C1]  ? kasan_save_free_info+0x40/0x50
[  327.265042][    C1]  ? unwind_next_frame+0x8f/0x2550
[  327.265060][    C1]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  327.265077][    C1]  arch_stack_walk+0x11b/0x150
[  327.265096][    C1]  ? __kasan_slab_free+0x5c/0x80
[  327.265113][    C1]  stack_trace_save+0xa9/0x100
[  327.265128][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  327.265144][    C1]  ? __lock_acquire+0x6df/0x2e40
[  327.265162][    C1]  kasan_save_track+0x3e/0x80
[  327.265176][    C1]  ? kasan_save_track+0x3e/0x80
[  327.265190][    C1]  ? kasan_save_free_info+0x40/0x50
[  327.265208][    C1]  ? __kasan_slab_free+0x5c/0x80
[  327.265242][    C1]  kasan_save_free_info+0x40/0x50
[  327.265261][    C1]  __kasan_slab_free+0x5c/0x80
[  327.265277][    C1]  kfree+0x1c5/0x6c0
[  327.265297][    C1]  ? tomoyo_encode+0x533/0x570
[  327.265311][    C1]  ? tomoyo_realpath_from_path+0x605/0x640
[  327.265328][    C1]  tomoyo_realpath_from_path+0x605/0x640
[  327.265348][    C1]  tomoyo_check_open_permission+0x229/0x470
[  327.265369][    C1]  ? tomoyo_check_open_permission+0x1d3/0x470
[  327.265388][    C1]  ? __pfx_tomoyo_check_open_permission+0x10/0x10
[  327.265407][    C1]  ? do_raw_spin_lock+0x12b/0x2f0
[  327.265435][    C1]  ? rt_spin_unlock+0x157/0x200
[  327.265449][    C1]  ? tomoyo_file_open+0x166/0x220
[  327.265466][    C1]  security_file_open+0x9c/0x200
[  327.265485][    C1]  do_dentry_open+0x4be/0x1420
[  327.265505][    C1]  vfs_open+0x3b/0x350
[  327.265520][    C1]  ? path_openat+0x2e4d/0x3850
[  327.265546][    C1]  path_openat+0x2e64/0x3850
[  327.265569][    C1]  ? __kasan_slab_alloc+0x6c/0x80
[  327.265584][    C1]  ? do_sys_openat2+0xcc/0x200
[  327.265600][    C1]  ? __x64_sys_openat+0x138/0x170
[  327.265615][    C1]  ? do_syscall_64+0x174/0x580
[  327.265640][    C1]  do_file_open+0x23e/0x4a0
[  327.265659][    C1]  ? lockdep_hardirqs_on+0x7a/0x110
[  327.265677][    C1]  ? __pfx_do_file_open+0x10/0x10
[  327.265706][    C1]  ? alloc_fd+0x654/0x6d0
[  327.265726][    C1]  do_sys_openat2+0x115/0x200
[  327.265743][    C1]  ? __pfx_do_sys_openat2+0x10/0x10
[  327.265759][    C1]  ? __x64_sys_utimensat+0x15e/0x240
[  327.265774][    C1]  ? __pfx___x64_sys_utimensat+0x10/0x10
[  327.265791][    C1]  __x64_sys_openat+0x138/0x170
[  327.265808][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.265823][    C1]  do_syscall_64+0x174/0x580
[  327.265841][    C1]  ? clear_bhb_loop+0x40/0x90
[  327.265857][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.265872][    C1] RIP: 0033:0x7f27d6ed3c3a
[  327.265884][    C1] Code: 41 89 f2 48 89 54 24 e0 41 83 e2 40 75 2a 89 f0 f7 d0 a9 00 00 41 00 74 1f 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 2e c3 0f 1f 44 00 00 48 8d 44 24 08 c7 44 24
[  327.265897][    C1] RSP: 002b:00007ffcd1f91c78 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[  327.265912][    C1] RAX: ffffffffffffffda RBX: 00007ffcd1f91cb0 RCX: 00007f27d6ed3c3a
[  327.265924][    C1] RDX: 0000000000090800 RSI: 00007ffcd1f920b0 RDI: 00000000ffffff9c
[  327.265935][    C1] RBP: 0000000000000007 R08: 000055c4fc3e41e0 R09: 0000000000000000
[  327.265945][    C1] R10: 0000000000000000 R11: 0000000000000206 R12: 000055c4fc3e9830
[  327.265955][    C1] R13: 00007ffcd1f928b0 R14: 00007ffcd1f924b0 R15: 00007ffcd1f920b0
[  327.265973][    C1]  </TASK>
[  327.306471][   T39] Kernel panic - not syncing: hung_task: blocked tasks
[  327.306490][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.306511][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  327.306522][   T39] Call Trace:
[  327.306529][   T39]  <TASK>
[  327.306538][   T39]  vpanic+0x5d9/0xad0
[  327.306563][   T39]  ? __pfx_vpanic+0x10/0x10
[  327.306581][   T39]  ? irqentry_exit+0x218/0x8f0
[  327.306601][   T39]  ? __pfx___schedule+0x10/0x10
[  327.306633][   T39]  panic+0xc5/0xd0
[  327.306650][   T39]  ? __pfx_panic+0x10/0x10
[  327.306665][   T39]  ? preempt_schedule_common+0x82/0xd0
[  327.306683][   T39]  ? preempt_schedule_thunk+0x16/0x40
[  327.306700][   T39]  ? nmi_trigger_cpumask_backtrace+0x314/0x380
[  327.306718][   T39]  ? nmi_trigger_cpumask_backtrace+0x319/0x380
[  327.306735][   T39]  watchdog+0x1030/0x1030
[  327.306758][   T39]  ? watchdog+0x1c7/0x1030
[  327.306778][   T39]  kthread+0x388/0x470
[  327.306792][   T39]  ? __pfx_watchdog+0x10/0x10
[  327.306807][   T39]  ? __pfx_kthread+0x10/0x10
[  327.306822][   T39]  ret_from_fork+0x514/0xb70
[  327.306839][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  327.306853][   T39]  ? __switch_to+0xc89/0x1420
[  327.306875][   T39]  ? __pfx_kthread+0x10/0x10
[  327.306890][   T39]  ret_from_fork_asm+0x1a/0x30
[  327.306915][   T39]  </TASK>
[  327.307244][   T39] Kernel Offset: disabled