U: 0 UID: 0 PID: 6525 Comm: syz.1.189 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  323.504816][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  323.504829][ T6525] Call Trace:
[  323.504838][ T6525]  <TASK>
[  323.504847][ T6525]  dump_stack_lvl+0xe8/0x150
[  323.504885][ T6525]  sysfs_create_dir_ns+0x271/0x2a0
[  323.504915][ T6525]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  323.504948][ T6525]  ? rt_spin_unlock+0x163/0x200
[  323.504972][ T6525]  kobject_add_internal+0x62c/0xce0
[  323.505012][ T6525]  kobject_init_and_add+0x12b/0x1a0
[  323.505048][ T6525]  ? __pfx_kobject_init_and_add+0x10/0x10
[  323.505080][ T6525]  ? __raw_spin_lock_init+0x45/0x100
[  323.505104][ T6525]  ? __init_swait_queue_head+0xa8/0x150
[  323.505141][ T6525]  gfs2_sys_fs_add+0x257/0x480
[  323.505166][ T6525]  ? is_dynamic_key+0x1aa/0x1c0
[  323.505192][ T6525]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  323.505227][ T6525]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  323.505273][ T6525]  gfs2_fill_super+0x1368/0x20f0
[  323.505319][ T6525]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.505347][ T6525]  ? rt_spin_unlock+0x157/0x200
[  323.505384][ T6525]  ? sb_set_blocksize+0x11b/0x210
[  323.505409][ T6525]  ? setup_bdev_super+0x586/0x680
[  323.505443][ T6525]  get_tree_bdev_flags+0x430/0x4f0
[  323.505476][ T6525]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.505506][ T6525]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  323.505540][ T6525]  ? rcu_is_watching+0x15/0xb0
[  323.505575][ T6525]  gfs2_get_tree+0x51/0x1e0
[  323.505610][ T6525]  vfs_get_tree+0x92/0x2a0
[  323.505644][ T6525]  do_new_mount+0x319/0xdc0
[  323.505667][ T6525]  ? cap_capable+0x123/0x460
[  323.505697][ T6525]  ? __pfx_do_new_mount+0x10/0x10
[  323.505727][ T6525]  ? ns_capable+0x89/0xe0
[  323.505756][ T6525]  ? path_mount+0x647/0x1050
[  323.505785][ T6525]  ? user_path_at+0xd4/0x160
[  323.505815][ T6525]  __se_sys_mount+0x31d/0x420
[  323.505848][ T6525]  ? __pfx___se_sys_mount+0x10/0x10
[  323.505878][ T6525]  ? __x64_sys_mount+0x20/0xc0
[  323.505901][ T6525]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.505925][ T6525]  do_syscall_64+0x174/0x580
[  323.505946][ T6525]  ? trace_irq_disable+0x3b/0x140
[  323.505974][ T6525]  ? clear_bhb_loop+0x40/0x90
[  323.506001][ T6525]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.506022][ T6525] RIP: 0033:0x7f81de08f0ca
[  323.506045][ T6525] 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
[  323.506063][ T6525] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  323.506088][ T6525] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  323.506105][ T6525] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  323.506120][ T6525] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  323.506136][ T6525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  323.506150][ T6525] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  323.506187][ T6525]  </TASK>
[  323.506282][ T6525] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  323.506300][ T6525] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  323.661941][ T6525] Flush: task=syz.1.189[6525] dev=loop1 state=2
[  323.795100][ T6525] Teardown: task=syz.1.189[6525] dev=loop1 state=2
2026/07/11 22:30:04 executed programs: 175
[  324.252029][ T6528] loop1: detected capacity change from 0 to 32768
[  324.277940][ T6528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  324.277968][ T6528] CPU: 0 UID: 0 PID: 6528 Comm: syz.1.190 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  324.277993][ T6528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  324.278006][ T6528] Call Trace:
[  324.278015][ T6528]  <TASK>
[  324.278025][ T6528]  dump_stack_lvl+0xe8/0x150
[  324.278063][ T6528]  sysfs_create_dir_ns+0x271/0x2a0
[  324.278095][ T6528]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  324.278127][ T6528]  ? rt_spin_unlock+0x163/0x200
[  324.278152][ T6528]  kobject_add_internal+0x62c/0xce0
[  324.278190][ T6528]  kobject_init_and_add+0x12b/0x1a0
[  324.278228][ T6528]  ? __pfx_kobject_init_and_add+0x10/0x10
[  324.278261][ T6528]  ? __raw_spin_lock_init+0x45/0x100
[  324.278285][ T6528]  ? __init_swait_queue_head+0xa8/0x150
[  324.278321][ T6528]  gfs2_sys_fs_add+0x257/0x480
[  324.278345][ T6528]  ? is_dynamic_key+0x1aa/0x1c0
[  324.278380][ T6528]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  324.278415][ T6528]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  324.278464][ T6528]  gfs2_fill_super+0x1368/0x20f0
[  324.278510][ T6528]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.278538][ T6528]  ? rt_spin_unlock+0x157/0x200
[  324.278564][ T6528]  ? sb_set_blocksize+0x11b/0x210
[  324.278590][ T6528]  ? setup_bdev_super+0x586/0x680
[  324.278624][ T6528]  get_tree_bdev_flags+0x430/0x4f0
[  324.278654][ T6528]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.278684][ T6528]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  324.278719][ T6528]  ? rcu_is_watching+0x15/0xb0
[  324.278753][ T6528]  gfs2_get_tree+0x51/0x1e0
[  324.278788][ T6528]  vfs_get_tree+0x92/0x2a0
[  324.278822][ T6528]  do_new_mount+0x319/0xdc0
[  324.278846][ T6528]  ? cap_capable+0x123/0x460
[  324.278875][ T6528]  ? __pfx_do_new_mount+0x10/0x10
[  324.278904][ T6528]  ? ns_capable+0x89/0xe0
[  324.278933][ T6528]  ? path_mount+0x647/0x1050
[  324.278963][ T6528]  ? user_path_at+0xd4/0x160
[  324.278993][ T6528]  __se_sys_mount+0x31d/0x420
[  324.279025][ T6528]  ? __pfx___se_sys_mount+0x10/0x10
[  324.279059][ T6528]  ? __x64_sys_mount+0x20/0xc0
[  324.279084][ T6528]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.279109][ T6528]  do_syscall_64+0x174/0x580
[  324.279134][ T6528]  ? trace_irq_disable+0x3b/0x140
[  324.279164][ T6528]  ? clear_bhb_loop+0x40/0x90
[  324.279192][ T6528]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.279213][ T6528] RIP: 0033:0x7f81de08f0ca
[  324.279235][ T6528] 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
[  324.279253][ T6528] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  324.279278][ T6528] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  324.279294][ T6528] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  324.279309][ T6528] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  324.279324][ T6528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  324.279338][ T6528] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  324.279383][ T6528]  </TASK>
[  324.280947][ T6528] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  324.280969][ T6528] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  324.477397][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  324.625636][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  324.960651][ T6531] loop1: detected capacity change from 0 to 32768
[  324.984126][ T6531] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  324.984151][ T6531] CPU: 1 UID: 0 PID: 6531 Comm: syz.1.191 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  324.984178][ T6531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  324.984191][ T6531] Call Trace:
[  324.984201][ T6531]  <TASK>
[  324.984210][ T6531]  dump_stack_lvl+0xe8/0x150
[  324.984248][ T6531]  sysfs_create_dir_ns+0x271/0x2a0
[  324.984279][ T6531]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  324.984312][ T6531]  ? rt_spin_unlock+0x163/0x200
[  324.984337][ T6531]  kobject_add_internal+0x62c/0xce0
[  324.984372][ T6531]  kobject_init_and_add+0x12b/0x1a0
[  324.984409][ T6531]  ? __pfx_kobject_init_and_add+0x10/0x10
[  324.984443][ T6531]  ? __raw_spin_lock_init+0x45/0x100
[  324.984469][ T6531]  ? __init_swait_queue_head+0xa8/0x150
[  324.984502][ T6531]  gfs2_sys_fs_add+0x257/0x480
[  324.984526][ T6531]  ? is_dynamic_key+0x1aa/0x1c0
[  324.984552][ T6531]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  324.984588][ T6531]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  324.984638][ T6531]  gfs2_fill_super+0x1368/0x20f0
[  324.984681][ T6531]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.984710][ T6531]  ? rt_spin_unlock+0x157/0x200
[  324.984736][ T6531]  ? sb_set_blocksize+0x11b/0x210
[  324.984762][ T6531]  ? setup_bdev_super+0x586/0x680
[  324.984796][ T6531]  get_tree_bdev_flags+0x430/0x4f0
[  324.984829][ T6531]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.984868][ T6531]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  324.984903][ T6531]  ? rcu_is_watching+0x15/0xb0
[  324.984937][ T6531]  gfs2_get_tree+0x51/0x1e0
[  324.984971][ T6531]  vfs_get_tree+0x92/0x2a0
[  324.985004][ T6531]  do_new_mount+0x319/0xdc0
[  324.985028][ T6531]  ? cap_capable+0x123/0x460
[  324.985059][ T6531]  ? __pfx_do_new_mount+0x10/0x10
[  324.985087][ T6531]  ? ns_capable+0x89/0xe0
[  324.985115][ T6531]  ? path_mount+0x647/0x1050
[  324.985144][ T6531]  ? user_path_at+0xd4/0x160
[  324.985175][ T6531]  __se_sys_mount+0x31d/0x420
[  324.985208][ T6531]  ? __pfx___se_sys_mount+0x10/0x10
[  324.985242][ T6531]  ? __x64_sys_mount+0x20/0xc0
[  324.985267][ T6531]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.985291][ T6531]  do_syscall_64+0x174/0x580
[  324.985321][ T6531]  ? trace_irq_disable+0x3b/0x140
[  324.985347][ T6531]  ? clear_bhb_loop+0x40/0x90
[  324.985374][ T6531]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.985396][ T6531] RIP: 0033:0x7f81de08f0ca
[  324.985419][ T6531] 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
[  324.985436][ T6531] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  324.985460][ T6531] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  324.985476][ T6531] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  324.985491][ T6531] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  324.985506][ T6531] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  324.985520][ T6531] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  324.985555][ T6531]  </TASK>
[  324.985614][ T6531] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  324.985631][ T6531] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.367821][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  325.442845][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  325.547057][ T6534] loop1: detected capacity change from 0 to 32768
[  325.579345][ T6534] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  325.579374][ T6534] CPU: 1 UID: 0 PID: 6534 Comm: syz.1.192 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.579400][ T6534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  325.579413][ T6534] Call Trace:
[  325.579423][ T6534]  <TASK>
[  325.579433][ T6534]  dump_stack_lvl+0xe8/0x150
[  325.579472][ T6534]  sysfs_create_dir_ns+0x271/0x2a0
[  325.579504][ T6534]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.579538][ T6534]  ? rt_spin_unlock+0x163/0x200
[  325.579564][ T6534]  kobject_add_internal+0x62c/0xce0
[  325.579603][ T6534]  kobject_init_and_add+0x12b/0x1a0
[  325.579641][ T6534]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.579676][ T6534]  ? __raw_spin_lock_init+0x45/0x100
[  325.579702][ T6534]  ? __init_swait_queue_head+0xa8/0x150
[  325.579738][ T6534]  gfs2_sys_fs_add+0x257/0x480
[  325.579763][ T6534]  ? is_dynamic_key+0x1aa/0x1c0
[  325.579790][ T6534]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.579826][ T6534]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.579877][ T6534]  gfs2_fill_super+0x1368/0x20f0
[  325.579923][ T6534]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.579961][ T6534]  ? rt_spin_unlock+0x157/0x200
[  325.579988][ T6534]  ? sb_set_blocksize+0x11b/0x210
[  325.580014][ T6534]  ? setup_bdev_super+0x586/0x680
[  325.580049][ T6534]  get_tree_bdev_flags+0x430/0x4f0
[  325.580080][ T6534]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.580112][ T6534]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.580148][ T6534]  ? rcu_is_watching+0x15/0xb0
[  325.580184][ T6534]  gfs2_get_tree+0x51/0x1e0
[  325.580221][ T6534]  vfs_get_tree+0x92/0x2a0
[  325.580255][ T6534]  do_new_mount+0x319/0xdc0
[  325.580282][ T6534]  ? cap_capable+0x123/0x460
[  325.580314][ T6534]  ? __pfx_do_new_mount+0x10/0x10
[  325.580343][ T6534]  ? ns_capable+0x89/0xe0
[  325.580374][ T6534]  ? path_mount+0x647/0x1050
[  325.580404][ T6534]  ? user_path_at+0xd4/0x160
[  325.580437][ T6534]  __se_sys_mount+0x31d/0x420
[  325.580470][ T6534]  ? __pfx___se_sys_mount+0x10/0x10
[  325.580504][ T6534]  ? __x64_sys_mount+0x20/0xc0
[  325.580531][ T6534]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.580560][ T6534]  do_syscall_64+0x174/0x580
[  325.580585][ T6534]  ? trace_irq_disable+0x3b/0x140
[  325.580611][ T6534]  ? clear_bhb_loop+0x40/0x90
[  325.580639][ T6534]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.580660][ T6534] RIP: 0033:0x7f81de08f0ca
[  325.580683][ T6534] 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
[  325.580701][ T6534] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.580738][ T6534] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  325.580755][ T6534] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  325.580771][ T6534] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  325.580786][ T6534] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  325.580801][ T6534] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  325.580837][ T6534]  </TASK>
[  325.580898][ T6534] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.580915][ T6534] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.744999][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  325.822804][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  326.235337][ T6537] loop1: detected capacity change from 0 to 32768
[  326.240880][ T6537] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.240898][ T6537] CPU: 0 UID: 0 PID: 6537 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.240913][ T6537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.240920][ T6537] Call Trace:
[  326.240926][ T6537]  <TASK>
[  326.240932][ T6537]  dump_stack_lvl+0xe8/0x150
[  326.240959][ T6537]  sysfs_create_dir_ns+0x271/0x2a0
[  326.240977][ T6537]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.240995][ T6537]  ? rt_spin_unlock+0x163/0x200
[  326.241010][ T6537]  kobject_add_internal+0x62c/0xce0
[  326.241031][ T6537]  kobject_init_and_add+0x12b/0x1a0
[  326.241052][ T6537]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.241070][ T6537]  ? __raw_spin_lock_init+0x45/0x100
[  326.241084][ T6537]  ? __init_swait_queue_head+0xa8/0x150
[  326.241103][ T6537]  gfs2_sys_fs_add+0x257/0x480
[  326.241117][ T6537]  ? is_dynamic_key+0x1aa/0x1c0
[  326.241132][ T6537]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.241150][ T6537]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.241177][ T6537]  gfs2_fill_super+0x1368/0x20f0
[  326.241202][ T6537]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.241217][ T6537]  ? rt_spin_unlock+0x157/0x200
[  326.241231][ T6537]  ? sb_set_blocksize+0x11b/0x210
[  326.241245][ T6537]  ? setup_bdev_super+0x586/0x680
[  326.241264][ T6537]  get_tree_bdev_flags+0x430/0x4f0
[  326.241281][ T6537]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.241297][ T6537]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.241316][ T6537]  ? rcu_is_watching+0x15/0xb0
[  326.241335][ T6537]  gfs2_get_tree+0x51/0x1e0
[  326.241354][ T6537]  vfs_get_tree+0x92/0x2a0
[  326.241372][ T6537]  do_new_mount+0x319/0xdc0
[  326.241388][ T6537]  ? cap_capable+0x123/0x460
[  326.241405][ T6537]  ? __pfx_do_new_mount+0x10/0x10
[  326.241421][ T6537]  ? ns_capable+0x89/0xe0
[  326.241448][ T6537]  ? path_mount+0x647/0x1050
[  326.241465][ T6537]  ? user_path_at+0xd4/0x160
[  326.241481][ T6537]  __se_sys_mount+0x31d/0x420
[  326.241499][ T6537]  ? __pfx___se_sys_mount+0x10/0x10
[  326.241517][ T6537]  ? __x64_sys_mount+0x20/0xc0
[  326.241531][ T6537]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.241544][ T6537]  do_syscall_64+0x174/0x580
[  326.241558][ T6537]  ? trace_irq_disable+0x3b/0x140
[  326.241572][ T6537]  ? clear_bhb_loop+0x40/0x90
[  326.241587][ T6537]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.241599][ T6537] RIP: 0033:0x7f81de08f0ca
[  326.241612][ T6537] 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
[  326.241623][ T6537] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.241638][ T6537] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  326.241647][ T6537] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  326.241656][ T6537] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  326.241664][ T6537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.241672][ T6537] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  326.241691][ T6537]  </TASK>
[  326.241707][ T6537] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.241717][ T6537] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.447194][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  326.522809][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  326.865719][ T6540] loop1: detected capacity change from 0 to 32768
[  326.881830][ T6540] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.881856][ T6540] CPU: 1 UID: 0 PID: 6540 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.881880][ T6540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  326.881892][ T6540] Call Trace:
[  326.881901][ T6540]  <TASK>
[  326.881911][ T6540]  dump_stack_lvl+0xe8/0x150
[  326.881950][ T6540]  sysfs_create_dir_ns+0x271/0x2a0
[  326.881982][ T6540]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.882014][ T6540]  ? rt_spin_unlock+0x163/0x200
[  326.882039][ T6540]  kobject_add_internal+0x62c/0xce0
[  326.882076][ T6540]  kobject_init_and_add+0x12b/0x1a0
[  326.882118][ T6540]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.882150][ T6540]  ? __raw_spin_lock_init+0x45/0x100
[  326.882175][ T6540]  ? __init_swait_queue_head+0xa8/0x150
[  326.882207][ T6540]  gfs2_sys_fs_add+0x257/0x480
[  326.882223][ T6540]  ? is_dynamic_key+0x1aa/0x1c0
[  326.882238][ T6540]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.882256][ T6540]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.882283][ T6540]  gfs2_fill_super+0x1368/0x20f0
[  326.882308][ T6540]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.882324][ T6540]  ? rt_spin_unlock+0x157/0x200
[  326.882337][ T6540]  ? sb_set_blocksize+0x11b/0x210
[  326.882351][ T6540]  ? setup_bdev_super+0x586/0x680
[  326.882371][ T6540]  get_tree_bdev_flags+0x430/0x4f0
[  326.882388][ T6540]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.882405][ T6540]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.882424][ T6540]  ? rcu_is_watching+0x15/0xb0
[  326.882452][ T6540]  gfs2_get_tree+0x51/0x1e0
[  326.882471][ T6540]  vfs_get_tree+0x92/0x2a0
[  326.882490][ T6540]  do_new_mount+0x319/0xdc0
[  326.882504][ T6540]  ? cap_capable+0x123/0x460
[  326.882521][ T6540]  ? __pfx_do_new_mount+0x10/0x10
[  326.882537][ T6540]  ? ns_capable+0x89/0xe0
[  326.882554][ T6540]  ? path_mount+0x647/0x1050
[  326.882569][ T6540]  ? user_path_at+0xd4/0x160
[  326.882586][ T6540]  __se_sys_mount+0x31d/0x420
[  326.882604][ T6540]  ? __pfx___se_sys_mount+0x10/0x10
[  326.882623][ T6540]  ? __x64_sys_mount+0x20/0xc0
[  326.882636][ T6540]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.882650][ T6540]  do_syscall_64+0x174/0x580
[  326.882668][ T6540]  ? trace_irq_disable+0x3b/0x140
[  326.882691][ T6540]  ? clear_bhb_loop+0x40/0x90
[  326.882716][ T6540]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.882736][ T6540] RIP: 0033:0x7f81de08f0ca
[  326.882757][ T6540] 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
[  326.882774][ T6540] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.882798][ T6540] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  326.882813][ T6540] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  326.882828][ T6540] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  326.882842][ T6540] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  326.882856][ T6540] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  326.882889][ T6540]  </TASK>
[  326.968553][ T6540] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.968575][ T6540] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.987834][ T6540] Flush: task=syz.1.194[6540] dev=loop1 state=2
[  327.063009][ T6540] Teardown: task=syz.1.194[6540] dev=loop1 state=2
[  327.539412][ T6543] loop1: detected capacity change from 0 to 32768
[  327.553991][ T6543] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  327.554015][ T6543] CPU: 0 UID: 0 PID: 6543 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.554039][ T6543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  327.554051][ T6543] Call Trace:
[  327.554060][ T6543]  <TASK>
[  327.554069][ T6543]  dump_stack_lvl+0xe8/0x150
[  327.554106][ T6543]  sysfs_create_dir_ns+0x271/0x2a0
[  327.554136][ T6543]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  327.554168][ T6543]  ? rt_spin_unlock+0x163/0x200
[  327.554198][ T6543]  kobject_add_internal+0x62c/0xce0
[  327.554235][ T6543]  kobject_init_and_add+0x12b/0x1a0
[  327.554281][ T6543]  ? __pfx_kobject_init_and_add+0x10/0x10
[  327.554311][ T6543]  ? __raw_spin_lock_init+0x45/0x100
[  327.554336][ T6543]  ? __init_swait_queue_head+0xa8/0x150
[  327.554370][ T6543]  gfs2_sys_fs_add+0x257/0x480
[  327.554395][ T6543]  ? is_dynamic_key+0x1aa/0x1c0
[  327.554420][ T6543]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  327.554451][ T6543]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  327.554498][ T6543]  gfs2_fill_super+0x1368/0x20f0
[  327.554542][ T6543]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.554570][ T6543]  ? rt_spin_unlock+0x157/0x200
[  327.554594][ T6543]  ? sb_set_blocksize+0x11b/0x210
[  327.554617][ T6543]  ? setup_bdev_super+0x586/0x680
[  327.554650][ T6543]  get_tree_bdev_flags+0x430/0x4f0
[  327.554680][ T6543]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.554709][ T6543]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  327.554752][ T6543]  ? rcu_is_watching+0x15/0xb0
[  327.554785][ T6543]  gfs2_get_tree+0x51/0x1e0
[  327.554817][ T6543]  vfs_get_tree+0x92/0x2a0
[  327.554849][ T6543]  do_new_mount+0x319/0xdc0
[  327.554874][ T6543]  ? cap_capable+0x123/0x460
[  327.554903][ T6543]  ? __pfx_do_new_mount+0x10/0x10
[  327.554930][ T6543]  ? ns_capable+0x89/0xe0
[  327.554958][ T6543]  ? path_mount+0x647/0x1050
[  327.554982][ T6543]  ? user_path_at+0xd4/0x160
[  327.555006][ T6543]  __se_sys_mount+0x31d/0x420
[  327.555031][ T6543]  ? __pfx___se_sys_mount+0x10/0x10
[  327.555057][ T6543]  ? __x64_sys_mount+0x20/0xc0
[  327.555076][ T6543]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.555094][ T6543]  do_syscall_64+0x174/0x580
[  327.555113][ T6543]  ? trace_irq_disable+0x3b/0x140
[  327.555132][ T6543]  ? clear_bhb_loop+0x40/0x90
[  327.555152][ T6543]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.555168][ T6543] RIP: 0033:0x7f81de08f0ca
[  327.555186][ T6543] 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
[  327.555200][ T6543] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  327.555220][ T6543] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  327.555233][ T6543] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  327.555246][ T6543] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  327.555257][ T6543] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  327.555268][ T6543] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  327.555295][ T6543]  </TASK>
[  327.559372][ T6543] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  327.559395][ T6543] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  328.016616][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  328.097417][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  328.577682][ T6547] loop1: detected capacity change from 0 to 32768
[  328.591339][ T6547] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  328.591363][ T6547] CPU: 1 UID: 0 PID: 6547 Comm: syz.1.197 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  328.591389][ T6547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  328.591402][ T6547] Call Trace:
[  328.591411][ T6547]  <TASK>
[  328.591431][ T6547]  dump_stack_lvl+0xe8/0x150
[  328.591473][ T6547]  sysfs_create_dir_ns+0x271/0x2a0
[  328.591503][ T6547]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  328.591536][ T6547]  ? rt_spin_unlock+0x163/0x200
[  328.591561][ T6547]  kobject_add_internal+0x62c/0xce0
[  328.591600][ T6547]  kobject_init_and_add+0x12b/0x1a0
[  328.591638][ T6547]  ? __pfx_kobject_init_and_add+0x10/0x10
[  328.591669][ T6547]  ? __raw_spin_lock_init+0x45/0x100
[  328.591695][ T6547]  ? __init_swait_queue_head+0xa8/0x150
[  328.591730][ T6547]  gfs2_sys_fs_add+0x257/0x480
[  328.591754][ T6547]  ? is_dynamic_key+0x1aa/0x1c0
[  328.591781][ T6547]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  328.591821][ T6547]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  328.591871][ T6547]  gfs2_fill_super+0x1368/0x20f0
[  328.591913][ T6547]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.591940][ T6547]  ? rt_spin_unlock+0x157/0x200
[  328.591967][ T6547]  ? sb_set_blocksize+0x11b/0x210
[  328.591992][ T6547]  ? setup_bdev_super+0x586/0x680
[  328.592027][ T6547]  get_tree_bdev_flags+0x430/0x4f0
[  328.592059][ T6547]  ? __pfx_gfs2_fill_super+0x10/0x10
[  328.592090][ T6547]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  328.592123][ T6547]  ? rcu_is_watching+0x15/0xb0
[  328.592157][ T6547]  gfs2_get_tree+0x51/0x1e0
[  328.592191][ T6547]  vfs_get_tree+0x92/0x2a0
[  328.592223][ T6547]  do_new_mount+0x319/0xdc0
[  328.592248][ T6547]  ? cap_capable+0x123/0x460
[  328.592277][ T6547]  ? __pfx_do_new_mount+0x10/0x10
[  328.592304][ T6547]  ? ns_capable+0x89/0xe0
[  328.592333][ T6547]  ? path_mount+0x647/0x1050
[  328.592362][ T6547]  ? user_path_at+0xd4/0x160
[  328.592393][ T6547]  __se_sys_mount+0x31d/0x420
[  328.592435][ T6547]  ? __pfx___se_sys_mount+0x10/0x10
[  328.592469][ T6547]  ? __x64_sys_mount+0x20/0xc0
[  328.592495][ T6547]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.592519][ T6547]  do_syscall_64+0x174/0x580
[  328.592545][ T6547]  ? trace_irq_disable+0x3b/0x140
[  328.592570][ T6547]  ? clear_bhb_loop+0x40/0x90
[  328.592597][ T6547]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  328.592618][ T6547] RIP: 0033:0x7f81de08f0ca
[  328.592640][ T6547] 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
[  328.592657][ T6547] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  328.592680][ T6547] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  328.592696][ T6547] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  328.592711][ T6547] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  328.592725][ T6547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  328.592738][ T6547] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  328.592771][ T6547]  </TASK>
[  328.738975][ T6547] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  328.738998][ T6547] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  328.758398][ T6547] Flush: task=syz.1.197[6547] dev=loop1 state=2
[  328.833516][ T6547] Teardown: task=syz.1.197[6547] dev=loop1 state=2
2026/07/11 22:30:09 executed programs: 183
[  329.309406][ T6550] loop1: detected capacity change from 0 to 32768
[  329.322891][ T6550] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  329.322917][ T6550] CPU: 1 UID: 0 PID: 6550 Comm: syz.1.198 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  329.322942][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  329.322955][ T6550] Call Trace:
[  329.322965][ T6550]  <TASK>
[  329.322975][ T6550]  dump_stack_lvl+0xe8/0x150
[  329.323014][ T6550]  sysfs_create_dir_ns+0x271/0x2a0
[  329.323045][ T6550]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  329.323078][ T6550]  ? rt_spin_unlock+0x163/0x200
[  329.323103][ T6550]  kobject_add_internal+0x62c/0xce0
[  329.323143][ T6550]  kobject_init_and_add+0x12b/0x1a0
[  329.323182][ T6550]  ? __pfx_kobject_init_and_add+0x10/0x10
[  329.323216][ T6550]  ? __raw_spin_lock_init+0x45/0x100
[  329.323241][ T6550]  ? __init_swait_queue_head+0xa8/0x150
[  329.323277][ T6550]  gfs2_sys_fs_add+0x257/0x480
[  329.323302][ T6550]  ? is_dynamic_key+0x1aa/0x1c0
[  329.323329][ T6550]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  329.323364][ T6550]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  329.323413][ T6550]  gfs2_fill_super+0x1368/0x20f0
[  329.323460][ T6550]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.323489][ T6550]  ? rt_spin_unlock+0x157/0x200
[  329.323515][ T6550]  ? sb_set_blocksize+0x11b/0x210
[  329.323542][ T6550]  ? setup_bdev_super+0x586/0x680
[  329.323577][ T6550]  get_tree_bdev_flags+0x430/0x4f0
[  329.323609][ T6550]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.323640][ T6550]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  329.323675][ T6550]  ? rcu_is_watching+0x15/0xb0
[  329.323711][ T6550]  gfs2_get_tree+0x51/0x1e0
[  329.323746][ T6550]  vfs_get_tree+0x92/0x2a0
[  329.323781][ T6550]  do_new_mount+0x319/0xdc0
[  329.323806][ T6550]  ? cap_capable+0x123/0x460
[  329.323838][ T6550]  ? __pfx_do_new_mount+0x10/0x10
[  329.323873][ T6550]  ? ns_capable+0x89/0xe0
[  329.323903][ T6550]  ? path_mount+0x647/0x1050
[  329.323935][ T6550]  ? user_path_at+0xd4/0x160
[  329.323967][ T6550]  __se_sys_mount+0x31d/0x420
[  329.324000][ T6550]  ? __pfx___se_sys_mount+0x10/0x10
[  329.324035][ T6550]  ? __x64_sys_mount+0x20/0xc0
[  329.324061][ T6550]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.324085][ T6550]  do_syscall_64+0x174/0x580
[  329.324110][ T6550]  ? trace_irq_disable+0x3b/0x140
[  329.324136][ T6550]  ? clear_bhb_loop+0x40/0x90
[  329.324164][ T6550]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.324187][ T6550] RIP: 0033:0x7f81de08f0ca
[  329.324209][ T6550] 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
[  329.324228][ T6550] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  329.324253][ T6550] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  329.324269][ T6550] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  329.324284][ T6550] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  329.324300][ T6550] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  329.324314][ T6550] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  329.324349][ T6550]  </TASK>
[  329.324401][ T6550] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  329.324418][ T6550] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  329.511793][ T6550] Flush: task=syz.1.198[6550] dev=loop1 state=2
[  329.592851][ T6550] Teardown: task=syz.1.198[6550] dev=loop1 state=2
[  329.653306][ T4911] Bluetooth: hci1: command 0x0406 tx timeout
[  330.078237][ T6553] loop1: detected capacity change from 0 to 32768
[  330.099563][ T6553] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  330.099588][ T6553] CPU: 0 UID: 0 PID: 6553 Comm: syz.1.199 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  330.099611][ T6553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  330.099623][ T6553] Call Trace:
[  330.099631][ T6553]  <TASK>
[  330.099639][ T6553]  dump_stack_lvl+0xe8/0x150
[  330.099676][ T6553]  sysfs_create_dir_ns+0x271/0x2a0
[  330.099706][ T6553]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  330.099736][ T6553]  ? rt_spin_unlock+0x163/0x200
[  330.099760][ T6553]  kobject_add_internal+0x62c/0xce0
[  330.099797][ T6553]  kobject_init_and_add+0x12b/0x1a0
[  330.099832][ T6553]  ? __pfx_kobject_init_and_add+0x10/0x10
[  330.099864][ T6553]  ? __raw_spin_lock_init+0x45/0x100
[  330.099887][ T6553]  ? __init_swait_queue_head+0xa8/0x150
[  330.099921][ T6553]  gfs2_sys_fs_add+0x257/0x480
[  330.099944][ T6553]  ? is_dynamic_key+0x1aa/0x1c0
[  330.099970][ T6553]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  330.100003][ T6553]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  330.100047][ T6553]  gfs2_fill_super+0x1368/0x20f0
[  330.100091][ T6553]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.100117][ T6553]  ? rt_spin_unlock+0x157/0x200
[  330.100141][ T6553]  ? sb_set_blocksize+0x11b/0x210
[  330.100165][ T6553]  ? setup_bdev_super+0x586/0x680
[  330.100196][ T6553]  get_tree_bdev_flags+0x430/0x4f0
[  330.100225][ T6553]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.100265][ T6553]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  330.100298][ T6553]  ? rcu_is_watching+0x15/0xb0
[  330.100331][ T6553]  gfs2_get_tree+0x51/0x1e0
[  330.100364][ T6553]  vfs_get_tree+0x92/0x2a0
[  330.100394][ T6553]  do_new_mount+0x319/0xdc0
[  330.100418][ T6553]  ? cap_capable+0x123/0x460
[  330.100445][ T6553]  ? __pfx_do_new_mount+0x10/0x10
[  330.100471][ T6553]  ? ns_capable+0x89/0xe0
[  330.100499][ T6553]  ? path_mount+0x647/0x1050
[  330.100528][ T6553]  ? user_path_at+0xd4/0x160
[  330.100557][ T6553]  __se_sys_mount+0x31d/0x420
[  330.100588][ T6553]  ? __pfx___se_sys_mount+0x10/0x10
[  330.100619][ T6553]  ? __x64_sys_mount+0x20/0xc0
[  330.100638][ T6553]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.100657][ T6553]  do_syscall_64+0x174/0x580
[  330.100677][ T6553]  ? trace_irq_disable+0x3b/0x140
[  330.100716][ T6553]  ? clear_bhb_loop+0x40/0x90
[  330.100737][ T6553]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.100755][ T6553] RIP: 0033:0x7f81de08f0ca
[  330.100771][ T6553] 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
[  330.100786][ T6553] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  330.100805][ T6553] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  330.100818][ T6553] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  330.100830][ T6553] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  330.100841][ T6553] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  330.100852][ T6553] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  330.100879][ T6553]  </TASK>
[  330.100910][ T6553] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  330.100926][ T6553] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.230294][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  330.292860][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  330.711332][ T6556] loop1: detected capacity change from 0 to 32768
[  330.725626][ T6556] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  330.725652][ T6556] CPU: 1 UID: 0 PID: 6556 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  330.725678][ T6556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  330.725691][ T6556] Call Trace:
[  330.725701][ T6556]  <TASK>
[  330.725711][ T6556]  dump_stack_lvl+0xe8/0x150
[  330.725758][ T6556]  sysfs_create_dir_ns+0x271/0x2a0
[  330.725787][ T6556]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  330.725819][ T6556]  ? rt_spin_unlock+0x163/0x200
[  330.725846][ T6556]  kobject_add_internal+0x62c/0xce0
[  330.725885][ T6556]  kobject_init_and_add+0x12b/0x1a0
[  330.725920][ T6556]  ? __pfx_kobject_init_and_add+0x10/0x10
[  330.725953][ T6556]  ? __raw_spin_lock_init+0x45/0x100
[  330.725978][ T6556]  ? __init_swait_queue_head+0xa8/0x150
[  330.726013][ T6556]  gfs2_sys_fs_add+0x257/0x480
[  330.726037][ T6556]  ? is_dynamic_key+0x1aa/0x1c0
[  330.726064][ T6556]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  330.726098][ T6556]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  330.726147][ T6556]  gfs2_fill_super+0x1368/0x20f0
[  330.726193][ T6556]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.726223][ T6556]  ? rt_spin_unlock+0x157/0x200
[  330.726248][ T6556]  ? sb_set_blocksize+0x11b/0x210
[  330.726273][ T6556]  ? setup_bdev_super+0x586/0x680
[  330.726307][ T6556]  get_tree_bdev_flags+0x430/0x4f0
[  330.726339][ T6556]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.726368][ T6556]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  330.726403][ T6556]  ? rcu_is_watching+0x15/0xb0
[  330.726438][ T6556]  gfs2_get_tree+0x51/0x1e0
[  330.726472][ T6556]  vfs_get_tree+0x92/0x2a0
[  330.726504][ T6556]  do_new_mount+0x319/0xdc0
[  330.726528][ T6556]  ? cap_capable+0x123/0x460
[  330.726560][ T6556]  ? __pfx_do_new_mount+0x10/0x10
[  330.726589][ T6556]  ? ns_capable+0x89/0xe0
[  330.726618][ T6556]  ? path_mount+0x647/0x1050
[  330.726647][ T6556]  ? user_path_at+0xd4/0x160
[  330.726679][ T6556]  __se_sys_mount+0x31d/0x420
[  330.726711][ T6556]  ? __pfx___se_sys_mount+0x10/0x10
[  330.726744][ T6556]  ? __x64_sys_mount+0x20/0xc0
[  330.726906][ T6556]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.726931][ T6556]  do_syscall_64+0x174/0x580
[  330.726957][ T6556]  ? trace_irq_disable+0x3b/0x140
[  330.726983][ T6556]  ? clear_bhb_loop+0x40/0x90
[  330.727009][ T6556]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.727031][ T6556] RIP: 0033:0x7f81de08f0ca
[  330.727053][ T6556] 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
[  330.727071][ T6556] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  330.727095][ T6556] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  330.727111][ T6556] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  330.727126][ T6556] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  330.727141][ T6556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  330.727155][ T6556] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  330.727191][ T6556]  </TASK>
[  330.729308][ T6556] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  330.729331][ T6556] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.851742][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  330.933621][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  331.370625][ T6559] loop1: detected capacity change from 0 to 32768
[  331.392613][ T6559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  331.392639][ T6559] CPU: 0 UID: 0 PID: 6559 Comm: syz.1.201 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  331.392669][ T6559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  331.392682][ T6559] Call Trace:
[  331.392691][ T6559]  <TASK>
[  331.392700][ T6559]  dump_stack_lvl+0xe8/0x150
[  331.392749][ T6559]  sysfs_create_dir_ns+0x271/0x2a0
[  331.392781][ T6559]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  331.392813][ T6559]  ? rt_spin_unlock+0x163/0x200
[  331.392837][ T6559]  kobject_add_internal+0x62c/0xce0
[  331.392876][ T6559]  kobject_init_and_add+0x12b/0x1a0
[  331.392914][ T6559]  ? __pfx_kobject_init_and_add+0x10/0x10
[  331.392947][ T6559]  ? __raw_spin_lock_init+0x45/0x100
[  331.392972][ T6559]  ? __init_swait_queue_head+0xa8/0x150
[  331.393008][ T6559]  gfs2_sys_fs_add+0x257/0x480
[  331.393032][ T6559]  ? is_dynamic_key+0x1aa/0x1c0
[  331.393059][ T6559]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  331.393093][ T6559]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  331.393143][ T6559]  gfs2_fill_super+0x1368/0x20f0
[  331.393188][ T6559]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.393217][ T6559]  ? rt_spin_unlock+0x157/0x200
[  331.393241][ T6559]  ? sb_set_blocksize+0x11b/0x210
[  331.393267][ T6559]  ? setup_bdev_super+0x586/0x680
[  331.393301][ T6559]  get_tree_bdev_flags+0x430/0x4f0
[  331.393333][ T6559]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.393363][ T6559]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  331.393397][ T6559]  ? rcu_is_watching+0x15/0xb0
[  331.393432][ T6559]  gfs2_get_tree+0x51/0x1e0
[  331.393467][ T6559]  vfs_get_tree+0x92/0x2a0
[  331.393499][ T6559]  do_new_mount+0x319/0xdc0
[  331.393524][ T6559]  ? cap_capable+0x123/0x460
[  331.393556][ T6559]  ? __pfx_do_new_mount+0x10/0x10
[  331.393584][ T6559]  ? ns_capable+0x89/0xe0
[  331.393614][ T6559]  ? path_mount+0x647/0x1050
[  331.393643][ T6559]  ? user_path_at+0xd4/0x160
[  331.393675][ T6559]  __se_sys_mount+0x31d/0x420
[  331.393708][ T6559]  ? __pfx___se_sys_mount+0x10/0x10
[  331.393756][ T6559]  ? __x64_sys_mount+0x20/0xc0
[  331.393782][ T6559]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.393807][ T6559]  do_syscall_64+0x174/0x580
[  331.393833][ T6559]  ? trace_irq_disable+0x3b/0x140
[  331.393858][ T6559]  ? clear_bhb_loop+0x40/0x90
[  331.393883][ T6559]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.393904][ T6559] RIP: 0033:0x7f81de08f0ca
[  331.393926][ T6559] 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
[  331.393944][ T6559] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  331.393969][ T6559] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  331.393985][ T6559] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  331.394001][ T6559] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  331.394016][ T6559] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  331.394031][ T6559] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  331.394066][ T6559]  </TASK>
[  331.398497][ T6559] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  331.398518][ T6559] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  331.820898][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  331.902822][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  332.041906][ T6562] loop1: detected capacity change from 0 to 32768
[  332.071360][ T6562] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  332.071385][ T6562] CPU: 1 UID: 0 PID: 6562 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  332.071411][ T6562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  332.071424][ T6562] Call Trace:
[  332.071434][ T6562]  <TASK>
[  332.071443][ T6562]  dump_stack_lvl+0xe8/0x150
[  332.071484][ T6562]  sysfs_create_dir_ns+0x271/0x2a0
[  332.071514][ T6562]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  332.071546][ T6562]  ? rt_spin_unlock+0x163/0x200
[  332.071572][ T6562]  kobject_add_internal+0x62c/0xce0
[  332.071611][ T6562]  kobject_init_and_add+0x12b/0x1a0
[  332.071648][ T6562]  ? __pfx_kobject_init_and_add+0x10/0x10
[  332.071682][ T6562]  ? __raw_spin_lock_init+0x45/0x100
[  332.071708][ T6562]  ? __init_swait_queue_head+0xa8/0x150
[  332.071743][ T6562]  gfs2_sys_fs_add+0x257/0x480
[  332.071767][ T6562]  ? is_dynamic_key+0x1aa/0x1c0
[  332.071792][ T6562]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  332.071826][ T6562]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  332.071860][ T6562]  gfs2_fill_super+0x1368/0x20f0
[  332.071885][ T6562]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.071909][ T6562]  ? rt_spin_unlock+0x157/0x200
[  332.071923][ T6562]  ? sb_set_blocksize+0x11b/0x210
[  332.071937][ T6562]  ? setup_bdev_super+0x586/0x680
[  332.071957][ T6562]  get_tree_bdev_flags+0x430/0x4f0
[  332.071974][ T6562]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.071991][ T6562]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  332.072010][ T6562]  ? rcu_is_watching+0x15/0xb0
[  332.072029][ T6562]  gfs2_get_tree+0x51/0x1e0
[  332.072048][ T6562]  vfs_get_tree+0x92/0x2a0
[  332.072066][ T6562]  do_new_mount+0x319/0xdc0
[  332.072081][ T6562]  ? cap_capable+0x123/0x460
[  332.072098][ T6562]  ? __pfx_do_new_mount+0x10/0x10
[  332.072114][ T6562]  ? ns_capable+0x89/0xe0
[  332.072130][ T6562]  ? path_mount+0x647/0x1050
[  332.072146][ T6562]  ? user_path_at+0xd4/0x160
[  332.072163][ T6562]  __se_sys_mount+0x31d/0x420
[  332.072182][ T6562]  ? __pfx___se_sys_mount+0x10/0x10
[  332.072200][ T6562]  ? __x64_sys_mount+0x20/0xc0
[  332.072214][ T6562]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.072227][ T6562]  do_syscall_64+0x174/0x580
[  332.072241][ T6562]  ? trace_irq_disable+0x3b/0x140
[  332.072256][ T6562]  ? clear_bhb_loop+0x40/0x90
[  332.072271][ T6562]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.072283][ T6562] RIP: 0033:0x7f81de08f0ca
[  332.072296][ T6562] 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
[  332.072307][ T6562] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  332.072322][ T6562] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  332.072332][ T6562] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  332.072340][ T6562] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  332.072348][ T6562] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  332.072356][ T6562] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  332.072376][ T6562]  </TASK>
[  332.072524][ T6562] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.072561][ T6562] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  332.480941][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  332.562886][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  332.655741][ T6565] loop1: detected capacity change from 0 to 32768
[  332.677575][ T6565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  332.677600][ T6565] CPU: 0 UID: 0 PID: 6565 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  332.677627][ T6565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  332.677640][ T6565] Call Trace:
[  332.677649][ T6565]  <TASK>
[  332.677659][ T6565]  dump_stack_lvl+0xe8/0x150
[  332.677700][ T6565]  sysfs_create_dir_ns+0x271/0x2a0
[  332.677732][ T6565]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  332.677765][ T6565]  ? rt_spin_unlock+0x163/0x200
[  332.677790][ T6565]  kobject_add_internal+0x62c/0xce0
[  332.677849][ T6565]  kobject_init_and_add+0x12b/0x1a0
[  332.677887][ T6565]  ? __pfx_kobject_init_and_add+0x10/0x10
[  332.677922][ T6565]  ? __raw_spin_lock_init+0x45/0x100
[  332.677945][ T6565]  ? __init_swait_queue_head+0xa8/0x150
[  332.677991][ T6565]  gfs2_sys_fs_add+0x257/0x480
[  332.678017][ T6565]  ? is_dynamic_key+0x1aa/0x1c0
[  332.678044][ T6565]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  332.678081][ T6565]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  332.678132][ T6565]  gfs2_fill_super+0x1368/0x20f0
[  332.678177][ T6565]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.678206][ T6565]  ? rt_spin_unlock+0x157/0x200
[  332.678231][ T6565]  ? sb_set_blocksize+0x11b/0x210
[  332.678257][ T6565]  ? setup_bdev_super+0x586/0x680
[  332.678292][ T6565]  get_tree_bdev_flags+0x430/0x4f0
[  332.678324][ T6565]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.678354][ T6565]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  332.678389][ T6565]  ? rcu_is_watching+0x15/0xb0
[  332.678425][ T6565]  gfs2_get_tree+0x51/0x1e0
[  332.678460][ T6565]  vfs_get_tree+0x92/0x2a0
[  332.678495][ T6565]  do_new_mount+0x319/0xdc0
[  332.678520][ T6565]  ? cap_capable+0x123/0x460
[  332.678552][ T6565]  ? __pfx_do_new_mount+0x10/0x10
[  332.678582][ T6565]  ? ns_capable+0x89/0xe0
[  332.678612][ T6565]  ? path_mount+0x647/0x1050
[  332.678643][ T6565]  ? user_path_at+0xd4/0x160
[  332.678674][ T6565]  __se_sys_mount+0x31d/0x420
[  332.678707][ T6565]  ? __pfx___se_sys_mount+0x10/0x10
[  332.678740][ T6565]  ? __x64_sys_mount+0x20/0xc0
[  332.678769][ T6565]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.678792][ T6565]  do_syscall_64+0x174/0x580
[  332.678818][ T6565]  ? trace_irq_disable+0x3b/0x140
[  332.678946][ T6565]  ? clear_bhb_loop+0x40/0x90
[  332.678974][ T6565]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.678997][ T6565] RIP: 0033:0x7f81de08f0ca
[  332.679019][ T6565] 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
[  332.679037][ T6565] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  332.679064][ T6565] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  332.679080][ T6565] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  332.679096][ T6565] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  332.679111][ T6565] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  332.679126][ T6565] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  332.679162][ T6565]  </TASK>
[  332.709698][ T6565] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.709721][ T6565] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  332.729381][ T6565] Flush: task=syz.1.203[6565] dev=loop1 state=2
[  333.033127][ T6565] Teardown: task=syz.1.203[6565] dev=loop1 state=2
[  333.638309][ T6568] loop1: detected capacity change from 0 to 32768
[  333.642972][ T6568] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  333.642998][ T6568] CPU: 0 UID: 0 PID: 6568 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  333.643024][ T6568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  333.643037][ T6568] Call Trace:
[  333.643046][ T6568]  <TASK>
[  333.643056][ T6568]  dump_stack_lvl+0xe8/0x150
[  333.643095][ T6568]  sysfs_create_dir_ns+0x271/0x2a0
[  333.643129][ T6568]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  333.643162][ T6568]  ? rt_spin_unlock+0x163/0x200
[  333.643186][ T6568]  kobject_add_internal+0x62c/0xce0
[  333.643226][ T6568]  kobject_init_and_add+0x12b/0x1a0
[  333.643264][ T6568]  ? __pfx_kobject_init_and_add+0x10/0x10
[  333.643297][ T6568]  ? __raw_spin_lock_init+0x45/0x100
[  333.643322][ T6568]  ? __init_swait_queue_head+0xa8/0x150
[  333.643360][ T6568]  gfs2_sys_fs_add+0x257/0x480
[  333.643384][ T6568]  ? is_dynamic_key+0x1aa/0x1c0
[  333.643406][ T6568]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  333.643440][ T6568]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  333.643486][ T6568]  gfs2_fill_super+0x1368/0x20f0
[  333.643532][ T6568]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.643558][ T6568]  ? rt_spin_unlock+0x157/0x200
[  333.643584][ T6568]  ? sb_set_blocksize+0x11b/0x210
[  333.643609][ T6568]  ? setup_bdev_super+0x586/0x680
[  333.643643][ T6568]  get_tree_bdev_flags+0x430/0x4f0
[  333.643675][ T6568]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.643703][ T6568]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  333.643745][ T6568]  ? rcu_is_watching+0x15/0xb0
[  333.643779][ T6568]  gfs2_get_tree+0x51/0x1e0
[  333.643811][ T6568]  vfs_get_tree+0x92/0x2a0
[  333.643841][ T6568]  do_new_mount+0x319/0xdc0
[  333.643864][ T6568]  ? cap_capable+0x123/0x460
[  333.643895][ T6568]  ? __pfx_do_new_mount+0x10/0x10
[  333.643922][ T6568]  ? ns_capable+0x89/0xe0
[  333.643951][ T6568]  ? path_mount+0x647/0x1050
[  333.643976][ T6568]  ? user_path_at+0xd4/0x160
[  333.644004][ T6568]  __se_sys_mount+0x31d/0x420
[  333.644035][ T6568]  ? __pfx___se_sys_mount+0x10/0x10
[  333.644069][ T6568]  ? __x64_sys_mount+0x20/0xc0
[  333.644093][ T6568]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.644117][ T6568]  do_syscall_64+0x174/0x580
[  333.644141][ T6568]  ? trace_irq_disable+0x3b/0x140
[  333.644165][ T6568]  ? clear_bhb_loop+0x40/0x90
[  333.644192][ T6568]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.644214][ T6568] RIP: 0033:0x7f81de08f0ca
[  333.644235][ T6568] 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
[  333.644251][ T6568] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  333.644276][ T6568] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  333.644292][ T6568] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  333.644307][ T6568] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  333.644321][ T6568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  333.644334][ T6568] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  333.644367][ T6568]  </TASK>
[  333.774769][ T6568] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  333.774795][ T6568] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  333.845095][ T6568] Flush: task=syz.1.204[6568] dev=loop1 state=2
[  333.963067][ T6568] Teardown: task=syz.1.204[6568] dev=loop1 state=2
2026/07/11 22:30:15 executed programs: 190
[  334.388657][ T6571] loop1: detected capacity change from 0 to 32768
[  334.393151][ T6571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  334.393176][ T6571] CPU: 0 UID: 0 PID: 6571 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  334.393201][ T6571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  334.393214][ T6571] Call Trace:
[  334.393223][ T6571]  <TASK>
[  334.393232][ T6571]  dump_stack_lvl+0xe8/0x150
[  334.393268][ T6571]  sysfs_create_dir_ns+0x271/0x2a0
[  334.393300][ T6571]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  334.393343][ T6571]  ? rt_spin_unlock+0x163/0x200
[  334.393369][ T6571]  kobject_add_internal+0x62c/0xce0
[  334.393405][ T6571]  kobject_init_and_add+0x12b/0x1a0
[  334.393439][ T6571]  ? __pfx_kobject_init_and_add+0x10/0x10
[  334.393469][ T6571]  ? __raw_spin_lock_init+0x45/0x100
[  334.393493][ T6571]  ? __init_swait_queue_head+0xa8/0x150
[  334.393530][ T6571]  gfs2_sys_fs_add+0x257/0x480
[  334.393554][ T6571]  ? is_dynamic_key+0x1aa/0x1c0
[  334.393579][ T6571]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  334.393614][ T6571]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  334.393663][ T6571]  gfs2_fill_super+0x1368/0x20f0
[  334.393708][ T6571]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.393736][ T6571]  ? rt_spin_unlock+0x157/0x200
[  334.393762][ T6571]  ? sb_set_blocksize+0x11b/0x210
[  334.393786][ T6571]  ? setup_bdev_super+0x586/0x680
[  334.393820][ T6571]  get_tree_bdev_flags+0x430/0x4f0
[  334.393851][ T6571]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.393881][ T6571]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  334.393915][ T6571]  ? rcu_is_watching+0x15/0xb0
[  334.393950][ T6571]  gfs2_get_tree+0x51/0x1e0
[  334.393985][ T6571]  vfs_get_tree+0x92/0x2a0
[  334.394016][ T6571]  do_new_mount+0x319/0xdc0
[  334.394042][ T6571]  ? cap_capable+0x123/0x460
[  334.394075][ T6571]  ? __pfx_do_new_mount+0x10/0x10
[  334.394104][ T6571]  ? ns_capable+0x89/0xe0
[  334.394135][ T6571]  ? path_mount+0x647/0x1050
[  334.394166][ T6571]  ? user_path_at+0xd4/0x160
[  334.394198][ T6571]  __se_sys_mount+0x31d/0x420
[  334.394231][ T6571]  ? __pfx___se_sys_mount+0x10/0x10
[  334.394264][ T6571]  ? __x64_sys_mount+0x20/0xc0
[  334.394289][ T6571]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.394321][ T6571]  do_syscall_64+0x174/0x580
[  334.394349][ T6571]  ? trace_irq_disable+0x3b/0x140
[  334.394371][ T6571]  ? clear_bhb_loop+0x40/0x90
[  334.394397][ T6571]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.394416][ T6571] RIP: 0033:0x7f81de08f0ca
[  334.394438][ T6571] 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
[  334.394455][ T6571] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  334.394480][ T6571] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  334.394496][ T6571] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  334.394511][ T6571] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  334.394526][ T6571] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  334.394540][ T6571] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  334.394576][ T6571]  </TASK>
[  334.414469][ T6571] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  334.414494][ T6571] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  334.609008][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  334.762867][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  335.032443][ T6574] loop1: detected capacity change from 0 to 32768
[  335.037098][ T6574] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  335.037120][ T6574] CPU: 1 UID: 0 PID: 6574 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  335.037143][ T6574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  335.037155][ T6574] Call Trace:
[  335.037163][ T6574]  <TASK>
[  335.037171][ T6574]  dump_stack_lvl+0xe8/0x150
[  335.037207][ T6574]  sysfs_create_dir_ns+0x271/0x2a0
[  335.037243][ T6574]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  335.037272][ T6574]  ? rt_spin_unlock+0x163/0x200
[  335.037303][ T6574]  kobject_add_internal+0x62c/0xce0
[  335.037337][ T6574]  kobject_init_and_add+0x12b/0x1a0
[  335.037369][ T6574]  ? __pfx_kobject_init_and_add+0x10/0x10
[  335.037398][ T6574]  ? __raw_spin_lock_init+0x45/0x100
[  335.037421][ T6574]  ? __init_swait_queue_head+0xa8/0x150
[  335.037452][ T6574]  gfs2_sys_fs_add+0x257/0x480
[  335.037474][ T6574]  ? is_dynamic_key+0x1aa/0x1c0
[  335.037497][ T6574]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  335.037528][ T6574]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  335.037571][ T6574]  gfs2_fill_super+0x1368/0x20f0
[  335.037611][ T6574]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.037635][ T6574]  ? rt_spin_unlock+0x157/0x200
[  335.037657][ T6574]  ? sb_set_blocksize+0x11b/0x210
[  335.037680][ T6574]  ? setup_bdev_super+0x586/0x680
[  335.037710][ T6574]  get_tree_bdev_flags+0x430/0x4f0
[  335.037741][ T6574]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.037768][ T6574]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  335.037797][ T6574]  ? rcu_is_watching+0x15/0xb0
[  335.037828][ T6574]  gfs2_get_tree+0x51/0x1e0
[  335.037858][ T6574]  vfs_get_tree+0x92/0x2a0
[  335.037887][ T6574]  do_new_mount+0x319/0xdc0
[  335.037910][ T6574]  ? cap_capable+0x123/0x460
[  335.037937][ T6574]  ? __pfx_do_new_mount+0x10/0x10
[  335.037963][ T6574]  ? ns_capable+0x89/0xe0
[  335.037988][ T6574]  ? path_mount+0x647/0x1050
[  335.038015][ T6574]  ? user_path_at+0xd4/0x160
[  335.038042][ T6574]  __se_sys_mount+0x31d/0x420
[  335.038072][ T6574]  ? __pfx___se_sys_mount+0x10/0x10
[  335.038101][ T6574]  ? __x64_sys_mount+0x20/0xc0
[  335.038123][ T6574]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.038145][ T6574]  do_syscall_64+0x174/0x580
[  335.038167][ T6574]  ? trace_irq_disable+0x3b/0x140
[  335.038189][ T6574]  ? clear_bhb_loop+0x40/0x90
[  335.038213][ T6574]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.038232][ T6574] RIP: 0033:0x7f81de08f0ca
[  335.038252][ T6574] 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
[  335.038268][ T6574] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  335.038290][ T6574] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  335.038312][ T6574] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  335.038326][ T6574] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  335.038339][ T6574] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  335.038351][ T6574] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  335.038383][ T6574]  </TASK>
[  335.038485][ T6574] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  335.038501][ T6574] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  335.055181][ T6574] Flush: task=syz.1.206[6574] dev=loop1 state=2
[  335.143267][ T6574] Teardown: task=syz.1.206[6574] dev=loop1 state=2
[  335.676476][ T6577] loop1: detected capacity change from 0 to 32768
[  335.684859][ T6577] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  335.684886][ T6577] CPU: 1 UID: 0 PID: 6577 Comm: syz.1.207 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  335.684911][ T6577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  335.684925][ T6577] Call Trace:
[  335.684934][ T6577]  <TASK>
[  335.684942][ T6577]  dump_stack_lvl+0xe8/0x150
[  335.684980][ T6577]  sysfs_create_dir_ns+0x271/0x2a0
[  335.685012][ T6577]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  335.685044][ T6577]  ? rt_spin_unlock+0x163/0x200
[  335.685067][ T6577]  kobject_add_internal+0x62c/0xce0
[  335.685102][ T6577]  kobject_init_and_add+0x12b/0x1a0
[  335.685148][ T6577]  ? __pfx_kobject_init_and_add+0x10/0x10
[  335.685179][ T6577]  ? __raw_spin_lock_init+0x45/0x100
[  335.685203][ T6577]  ? __init_swait_queue_head+0xa8/0x150
[  335.685237][ T6577]  gfs2_sys_fs_add+0x257/0x480
[  335.685269][ T6577]  ? is_dynamic_key+0x1aa/0x1c0
[  335.685293][ T6577]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  335.685327][ T6577]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  335.685372][ T6577]  gfs2_fill_super+0x1368/0x20f0
[  335.685417][ T6577]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.685444][ T6577]  ? rt_spin_unlock+0x157/0x200
[  335.685469][ T6577]  ? sb_set_blocksize+0x11b/0x210
[  335.685492][ T6577]  ? setup_bdev_super+0x586/0x680
[  335.685525][ T6577]  get_tree_bdev_flags+0x430/0x4f0
[  335.685556][ T6577]  ? __pfx_gfs2_fill_super+0x10/0x10
[  335.685584][ T6577]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  335.685615][ T6577]  ? rcu_is_watching+0x15/0xb0
[  335.685647][ T6577]  gfs2_get_tree+0x51/0x1e0
[  335.685676][ T6577]  vfs_get_tree+0x92/0x2a0
[  335.685705][ T6577]  do_new_mount+0x319/0xdc0
[  335.685736][ T6577]  ? cap_capable+0x123/0x460
[  335.685763][ T6577]  ? __pfx_do_new_mount+0x10/0x10
[  335.685788][ T6577]  ? ns_capable+0x89/0xe0
[  335.685815][ T6577]  ? path_mount+0x647/0x1050
[  335.685841][ T6577]  ? user_path_at+0xd4/0x160
[  335.685869][ T6577]  __se_sys_mount+0x31d/0x420
[  335.685899][ T6577]  ? __pfx___se_sys_mount+0x10/0x10
[  335.685932][ T6577]  ? __x64_sys_mount+0x20/0xc0
[  335.685954][ T6577]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.685975][ T6577]  do_syscall_64+0x174/0x580
[  335.685998][ T6577]  ? trace_irq_disable+0x3b/0x140
[  335.686020][ T6577]  ? clear_bhb_loop+0x40/0x90
[  335.686044][ T6577]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  335.686063][ T6577] RIP: 0033:0x7f81de08f0ca
[  335.686083][ T6577] 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
[  335.686099][ T6577] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  335.686129][ T6577] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  335.686144][ T6577] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  335.686158][ T6577] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  335.686171][ T6577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  335.686183][ T6577] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  335.686215][ T6577]  </TASK>
[  335.689377][ T6577] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  335.689397][ T6577] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.174370][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  336.252825][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  336.278670][ T6580] loop1: detected capacity change from 0 to 32768
[  336.288112][ T6580] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.288136][ T6580] CPU: 1 UID: 0 PID: 6580 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  336.288163][ T6580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  336.288176][ T6580] Call Trace:
[  336.288184][ T6580]  <TASK>
[  336.288192][ T6580]  dump_stack_lvl+0xe8/0x150
[  336.288226][ T6580]  sysfs_create_dir_ns+0x271/0x2a0
[  336.288253][ T6580]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.288282][ T6580]  ? rt_spin_unlock+0x163/0x200
[  336.288304][ T6580]  kobject_add_internal+0x62c/0xce0
[  336.288338][ T6580]  kobject_init_and_add+0x12b/0x1a0
[  336.288371][ T6580]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.288401][ T6580]  ? __raw_spin_lock_init+0x45/0x100
[  336.288424][ T6580]  ? __init_swait_queue_head+0xa8/0x150
[  336.288455][ T6580]  gfs2_sys_fs_add+0x257/0x480
[  336.288476][ T6580]  ? is_dynamic_key+0x1aa/0x1c0
[  336.288499][ T6580]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.288530][ T6580]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.288573][ T6580]  gfs2_fill_super+0x1368/0x20f0
[  336.288613][ T6580]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.288638][ T6580]  ? rt_spin_unlock+0x157/0x200
[  336.288661][ T6580]  ? sb_set_blocksize+0x11b/0x210
[  336.288683][ T6580]  ? setup_bdev_super+0x586/0x680
[  336.288713][ T6580]  get_tree_bdev_flags+0x430/0x4f0
[  336.288740][ T6580]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.288766][ T6580]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.288796][ T6580]  ? rcu_is_watching+0x15/0xb0
[  336.288826][ T6580]  gfs2_get_tree+0x51/0x1e0
[  336.288856][ T6580]  vfs_get_tree+0x92/0x2a0
[  336.288893][ T6580]  do_new_mount+0x319/0xdc0
[  336.288914][ T6580]  ? cap_capable+0x123/0x460
[  336.288942][ T6580]  ? __pfx_do_new_mount+0x10/0x10
[  336.288967][ T6580]  ? ns_capable+0x89/0xe0
[  336.288993][ T6580]  ? path_mount+0x647/0x1050
[  336.289019][ T6580]  ? user_path_at+0xd4/0x160
[  336.289046][ T6580]  __se_sys_mount+0x31d/0x420
[  336.289075][ T6580]  ? __pfx___se_sys_mount+0x10/0x10
[  336.289105][ T6580]  ? __x64_sys_mount+0x20/0xc0
[  336.289127][ T6580]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.289149][ T6580]  do_syscall_64+0x174/0x580
[  336.289170][ T6580]  ? trace_irq_disable+0x3b/0x140
[  336.289193][ T6580]  ? clear_bhb_loop+0x40/0x90
[  336.289216][ T6580]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.289235][ T6580] RIP: 0033:0x7f81de08f0ca
[  336.289255][ T6580] 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
[  336.289272][ T6580] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.289296][ T6580] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  336.289312][ T6580] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  336.289326][ T6580] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  336.289339][ T6580] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  336.289352][ T6580] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  336.289384][ T6580]  </TASK>
[  336.291035][ T6580] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.291053][ T6580] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.313938][ T6580] Flush: task=syz.1.208[6580] dev=loop1 state=2
[  336.572991][ T6580] Teardown: task=syz.1.208[6580] dev=loop1 state=2
[  337.121997][ T6583] loop1: detected capacity change from 0 to 32768
[  337.137516][ T6583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.137543][ T6583] CPU: 0 UID: 0 PID: 6583 Comm: syz.1.209 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.137569][ T6583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  337.137582][ T6583] Call Trace:
[  337.137590][ T6583]  <TASK>
[  337.137601][ T6583]  dump_stack_lvl+0xe8/0x150
[  337.137640][ T6583]  sysfs_create_dir_ns+0x271/0x2a0
[  337.137672][ T6583]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.137705][ T6583]  ? rt_spin_unlock+0x163/0x200
[  337.137729][ T6583]  kobject_add_internal+0x62c/0xce0
[  337.137780][ T6583]  kobject_init_and_add+0x12b/0x1a0
[  337.137817][ T6583]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.137856][ T6583]  ? __raw_spin_lock_init+0x45/0x100
[  337.137882][ T6583]  ? __init_swait_queue_head+0xa8/0x150
[  337.137918][ T6583]  gfs2_sys_fs_add+0x257/0x480
[  337.137943][ T6583]  ? is_dynamic_key+0x1aa/0x1c0
[  337.137970][ T6583]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.138005][ T6583]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.138055][ T6583]  gfs2_fill_super+0x1368/0x20f0
[  337.138098][ T6583]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.138123][ T6583]  ? rt_spin_unlock+0x157/0x200
[  337.138149][ T6583]  ? sb_set_blocksize+0x11b/0x210
[  337.138174][ T6583]  ? setup_bdev_super+0x586/0x680
[  337.138209][ T6583]  get_tree_bdev_flags+0x430/0x4f0
[  337.138241][ T6583]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.138271][ T6583]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.138304][ T6583]  ? rcu_is_watching+0x15/0xb0
[  337.138339][ T6583]  gfs2_get_tree+0x51/0x1e0
[  337.138374][ T6583]  vfs_get_tree+0x92/0x2a0
[  337.138406][ T6583]  do_new_mount+0x319/0xdc0
[  337.138431][ T6583]  ? cap_capable+0x123/0x460
[  337.138462][ T6583]  ? __pfx_do_new_mount+0x10/0x10
[  337.138490][ T6583]  ? ns_capable+0x89/0xe0
[  337.138520][ T6583]  ? path_mount+0x647/0x1050
[  337.138549][ T6583]  ? user_path_at+0xd4/0x160
[  337.138580][ T6583]  __se_sys_mount+0x31d/0x420
[  337.138614][ T6583]  ? __pfx___se_sys_mount+0x10/0x10
[  337.138648][ T6583]  ? __x64_sys_mount+0x20/0xc0
[  337.138672][ T6583]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.138696][ T6583]  do_syscall_64+0x174/0x580
[  337.138721][ T6583]  ? trace_irq_disable+0x3b/0x140
[  337.138746][ T6583]  ? clear_bhb_loop+0x40/0x90
[  337.138784][ T6583]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.138806][ T6583] RIP: 0033:0x7f81de08f0ca
[  337.138828][ T6583] 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
[  337.138846][ T6583] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.138870][ T6583] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  337.138887][ T6583] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  337.138902][ T6583] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  337.138917][ T6583] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  337.138931][ T6583] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  337.138966][ T6583]  </TASK>
[  337.141514][ T6583] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.141536][ T6583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.555476][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  337.634777][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  337.709271][ T6586] loop1: detected capacity change from 0 to 32768
[  337.755729][ T6586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.755757][ T6586] CPU: 0 UID: 0 PID: 6586 Comm: syz.1.210 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.755783][ T6586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  337.755797][ T6586] Call Trace:
[  337.755806][ T6586]  <TASK>
[  337.755816][ T6586]  dump_stack_lvl+0xe8/0x150
[  337.755855][ T6586]  sysfs_create_dir_ns+0x271/0x2a0
[  337.755887][ T6586]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.755920][ T6586]  ? rt_spin_unlock+0x163/0x200
[  337.755946][ T6586]  kobject_add_internal+0x62c/0xce0
[  337.755986][ T6586]  kobject_init_and_add+0x12b/0x1a0
[  337.756025][ T6586]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.756060][ T6586]  ? __raw_spin_lock_init+0x45/0x100
[  337.756085][ T6586]  ? __init_swait_queue_head+0xa8/0x150
[  337.756121][ T6586]  gfs2_sys_fs_add+0x257/0x480
[  337.756146][ T6586]  ? is_dynamic_key+0x1aa/0x1c0
[  337.756172][ T6586]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.756208][ T6586]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.756259][ T6586]  gfs2_fill_super+0x1368/0x20f0
[  337.756305][ T6586]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.756334][ T6586]  ? rt_spin_unlock+0x157/0x200
[  337.756369][ T6586]  ? sb_set_blocksize+0x11b/0x210
[  337.756395][ T6586]  ? setup_bdev_super+0x586/0x680
[  337.756431][ T6586]  get_tree_bdev_flags+0x430/0x4f0
[  337.756463][ T6586]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.756495][ T6586]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.756529][ T6586]  ? rcu_is_watching+0x15/0xb0
[  337.756566][ T6586]  gfs2_get_tree+0x51/0x1e0
[  337.756602][ T6586]  vfs_get_tree+0x92/0x2a0
[  337.756637][ T6586]  do_new_mount+0x319/0xdc0
[  337.756663][ T6586]  ? cap_capable+0x123/0x460
[  337.756695][ T6586]  ? __pfx_do_new_mount+0x10/0x10
[  337.756724][ T6586]  ? ns_capable+0x89/0xe0
[  337.756755][ T6586]  ? path_mount+0x647/0x1050
[  337.756785][ T6586]  ? user_path_at+0xd4/0x160
[  337.756817][ T6586]  __se_sys_mount+0x31d/0x420
[  337.756851][ T6586]  ? __pfx___se_sys_mount+0x10/0x10
[  337.756885][ T6586]  ? __x64_sys_mount+0x20/0xc0
[  337.756911][ T6586]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.756941][ T6586]  do_syscall_64+0x174/0x580
[  337.756967][ T6586]  ? trace_irq_disable+0x3b/0x140
[  337.756993][ T6586]  ? clear_bhb_loop+0x40/0x90
[  337.757021][ T6586]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.757043][ T6586] RIP: 0033:0x7f81de08f0ca
[  337.757064][ T6586] 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
[  337.757083][ T6586] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.757108][ T6586] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  337.757124][ T6586] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  337.757139][ T6586] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  337.757154][ T6586] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  337.757169][ T6586] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  337.757204][ T6586]  </TASK>
[  337.758375][ T6586] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.758396][ T6586] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.921574][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  338.114523][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  338.472212][ T6589] loop1: detected capacity change from 0 to 32768
[  338.475922][ T6589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  338.475945][ T6589] CPU: 0 UID: 0 PID: 6589 Comm: syz.1.211 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  338.475968][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  338.475980][ T6589] Call Trace:
[  338.475988][ T6589]  <TASK>
[  338.475997][ T6589]  dump_stack_lvl+0xe8/0x150
[  338.476031][ T6589]  sysfs_create_dir_ns+0x271/0x2a0
[  338.476059][ T6589]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  338.476088][ T6589]  ? rt_spin_unlock+0x163/0x200
[  338.476110][ T6589]  kobject_add_internal+0x62c/0xce0
[  338.476145][ T6589]  kobject_init_and_add+0x12b/0x1a0
[  338.476177][ T6589]  ? __pfx_kobject_init_and_add+0x10/0x10
[  338.476206][ T6589]  ? __raw_spin_lock_init+0x45/0x100
[  338.476229][ T6589]  ? __init_swait_queue_head+0xa8/0x150
[  338.476260][ T6589]  gfs2_sys_fs_add+0x257/0x480
[  338.476282][ T6589]  ? is_dynamic_key+0x1aa/0x1c0
[  338.476304][ T6589]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  338.476335][ T6589]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  338.476387][ T6589]  gfs2_fill_super+0x1368/0x20f0
[  338.476427][ T6589]  ? __pfx_gfs2_fill_super+0x10/0x10
[  338.476452][ T6589]  ? rt_spin_unlock+0x157/0x200
[  338.476475][ T6589]  ? sb_set_blocksize+0x11b/0x210
[  338.476498][ T6589]  ? setup_bdev_super+0x586/0x680
[  338.476529][ T6589]  get_tree_bdev_flags+0x430/0x4f0
[  338.476556][ T6589]  ? __pfx_gfs2_fill_super+0x10/0x10
[  338.476582][ T6589]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  338.476612][ T6589]  ? rcu_is_watching+0x15/0xb0
[  338.476642][ T6589]  gfs2_get_tree+0x51/0x1e0
[  338.476672][ T6589]  vfs_get_tree+0x92/0x2a0
[  338.476701][ T6589]  do_new_mount+0x319/0xdc0
[  338.476723][ T6589]  ? cap_capable+0x123/0x460
[  338.476750][ T6589]  ? __pfx_do_new_mount+0x10/0x10
[  338.476775][ T6589]  ? ns_capable+0x89/0xe0
[  338.476801][ T6589]  ? path_mount+0x647/0x1050
[  338.476827][ T6589]  ? user_path_at+0xd4/0x160
[  338.476854][ T6589]  __se_sys_mount+0x31d/0x420
[  338.476884][ T6589]  ? __pfx___se_sys_mount+0x10/0x10
[  338.476913][ T6589]  ? __x64_sys_mount+0x20/0xc0
[  338.476935][ T6589]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.476961][ T6589]  do_syscall_64+0x174/0x580
[  338.476983][ T6589]  ? trace_irq_disable+0x3b/0x140
[  338.477006][ T6589]  ? clear_bhb_loop+0x40/0x90
[  338.477030][ T6589]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  338.477048][ T6589] RIP: 0033:0x7f81de08f0ca
[  338.477067][ T6589] 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
[  338.477082][ T6589] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  338.477105][ T6589] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  338.477120][ T6589] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  338.477134][ T6589] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  338.477148][ T6589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  338.477161][ T6589] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  338.477192][ T6589]  </TASK>
[  338.477295][ T6589] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  338.477311][ T6589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  338.506638][ T6589] Flush: task=syz.1.211[6589] dev=loop1 state=2
[  338.593581][ T6589] Teardown: task=syz.1.211[6589] dev=loop1 state=2
[  339.139895][ T6592] loop1: detected capacity change from 0 to 32768
[  339.151108][ T6592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.151134][ T6592] CPU: 1 UID: 0 PID: 6592 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.151158][ T6592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  339.151171][ T6592] Call Trace:
[  339.151181][ T6592]  <TASK>
[  339.151190][ T6592]  dump_stack_lvl+0xe8/0x150
[  339.151239][ T6592]  sysfs_create_dir_ns+0x271/0x2a0
[  339.151270][ T6592]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.151302][ T6592]  ? rt_spin_unlock+0x163/0x200
[  339.151327][ T6592]  kobject_add_internal+0x62c/0xce0
[  339.151365][ T6592]  kobject_init_and_add+0x12b/0x1a0
[  339.151403][ T6592]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.151436][ T6592]  ? __raw_spin_lock_init+0x45/0x100
[  339.151461][ T6592]  ? __init_swait_queue_head+0xa8/0x150
[  339.151497][ T6592]  gfs2_sys_fs_add+0x257/0x480
[  339.151523][ T6592]  ? is_dynamic_key+0x1aa/0x1c0
[  339.151555][ T6592]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.151590][ T6592]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.151636][ T6592]  gfs2_fill_super+0x1368/0x20f0
[  339.151682][ T6592]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.151711][ T6592]  ? rt_spin_unlock+0x157/0x200
[  339.151735][ T6592]  ? sb_set_blocksize+0x11b/0x210
[  339.151761][ T6592]  ? setup_bdev_super+0x586/0x680
[  339.151797][ T6592]  get_tree_bdev_flags+0x430/0x4f0
[  339.151827][ T6592]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.151857][ T6592]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.151891][ T6592]  ? rcu_is_watching+0x15/0xb0
[  339.151925][ T6592]  gfs2_get_tree+0x51/0x1e0
[  339.151959][ T6592]  vfs_get_tree+0x92/0x2a0
[  339.151991][ T6592]  do_new_mount+0x319/0xdc0
[  339.152016][ T6592]  ? cap_capable+0x123/0x460
[  339.152047][ T6592]  ? __pfx_do_new_mount+0x10/0x10
[  339.152076][ T6592]  ? ns_capable+0x89/0xe0
[  339.152104][ T6592]  ? path_mount+0x647/0x1050
[  339.152133][ T6592]  ? user_path_at+0xd4/0x160
[  339.152164][ T6592]  __se_sys_mount+0x31d/0x420
[  339.152197][ T6592]  ? __pfx___se_sys_mount+0x10/0x10
[  339.152240][ T6592]  ? __x64_sys_mount+0x20/0xc0
[  339.152265][ T6592]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.152289][ T6592]  do_syscall_64+0x174/0x580
[  339.152315][ T6592]  ? trace_irq_disable+0x3b/0x140
[  339.152341][ T6592]  ? clear_bhb_loop+0x40/0x90
[  339.152368][ T6592]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.152389][ T6592] RIP: 0033:0x7f81de08f0ca
[  339.152409][ T6592] 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
[  339.152426][ T6592] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.152451][ T6592] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  339.152468][ T6592] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  339.152483][ T6592] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  339.152497][ T6592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  339.152511][ T6592] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  339.152546][ T6592]  </TASK>
[  339.226919][ T6592] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  339.226942][ T6592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  339.247888][ T6592] Flush: task=syz.1.212[6592] dev=loop1 state=2
[  339.324139][ T6592] Teardown: task=syz.1.212[6592] dev=loop1 state=2
2026/07/11 22:30:20 executed programs: 198
[  339.803158][ T6595] loop1: detected capacity change from 0 to 32768
[  339.807729][ T6595] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.807754][ T6595] CPU: 1 UID: 0 PID: 6595 Comm: syz.1.213 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.807780][ T6595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  339.807794][ T6595] Call Trace:
[  339.807803][ T6595]  <TASK>
[  339.807813][ T6595]  dump_stack_lvl+0xe8/0x150
[  339.807851][ T6595]  sysfs_create_dir_ns+0x271/0x2a0
[  339.807886][ T6595]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.807920][ T6595]  ? rt_spin_unlock+0x163/0x200
[  339.807946][ T6595]  kobject_add_internal+0x62c/0xce0
[  339.807986][ T6595]  kobject_init_and_add+0x12b/0x1a0
[  339.808024][ T6595]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.808058][ T6595]  ? __raw_spin_lock_init+0x45/0x100
[  339.808083][ T6595]  ? __init_swait_queue_head+0xa8/0x150
[  339.808118][ T6595]  gfs2_sys_fs_add+0x257/0x480
[  339.808143][ T6595]  ? is_dynamic_key+0x1aa/0x1c0
[  339.808169][ T6595]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.808212][ T6595]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.808260][ T6595]  gfs2_fill_super+0x1368/0x20f0
[  339.808306][ T6595]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.808332][ T6595]  ? rt_spin_unlock+0x157/0x200
[  339.808359][ T6595]  ? sb_set_blocksize+0x11b/0x210
[  339.808385][ T6595]  ? setup_bdev_super+0x586/0x680
[  339.808420][ T6595]  get_tree_bdev_flags+0x430/0x4f0
[  339.808452][ T6595]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.808483][ T6595]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.808520][ T6595]  ? rcu_is_watching+0x15/0xb0
[  339.808554][ T6595]  gfs2_get_tree+0x51/0x1e0
[  339.808590][ T6595]  vfs_get_tree+0x92/0x2a0
[  339.808624][ T6595]  do_new_mount+0x319/0xdc0
[  339.808649][ T6595]  ? cap_capable+0x123/0x460
[  339.808677][ T6595]  ? __pfx_do_new_mount+0x10/0x10
[  339.808703][ T6595]  ? ns_capable+0x89/0xe0
[  339.808732][ T6595]  ? path_mount+0x647/0x1050
[  339.808761][ T6595]  ? user_path_at+0xd4/0x160
[  339.808790][ T6595]  __se_sys_mount+0x31d/0x420
[  339.808824][ T6595]  ? __pfx___se_sys_mount+0x10/0x10
[  339.808856][ T6595]  ? __x64_sys_mount+0x20/0xc0
[  339.808882][ T6595]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.808906][ T6595]  do_syscall_64+0x174/0x580
[  339.808930][ T6595]  ? trace_irq_disable+0x3b/0x140
[  339.808974][ T6595]  ? clear_bhb_loop+0x40/0x90
[  339.809001][ T6595]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.809021][ T6595] RIP: 0033:0x7f81de08f0ca
[  339.809041][ T6595] 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
[  339.809060][ T6595] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.809084][ T6595] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  339.809099][ T6595] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  339.809114][ T6595] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  339.809128][ T6595] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  339.809143][ T6595] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  339.809176][ T6595]  </TASK>
[  339.810301][ T6595] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  339.810322][ T6595] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.230891][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  340.292861][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  340.516759][ T6598] loop1: detected capacity change from 0 to 32768
[  340.521744][ T6598] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.521770][ T6598] CPU: 0 UID: 0 PID: 6598 Comm: syz.1.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.521794][ T6598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  340.521806][ T6598] Call Trace:
[  340.521816][ T6598]  <TASK>
[  340.521826][ T6598]  dump_stack_lvl+0xe8/0x150
[  340.521865][ T6598]  sysfs_create_dir_ns+0x271/0x2a0
[  340.521896][ T6598]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.521928][ T6598]  ? rt_spin_unlock+0x163/0x200
[  340.521954][ T6598]  kobject_add_internal+0x62c/0xce0
[  340.521993][ T6598]  kobject_init_and_add+0x12b/0x1a0
[  340.522031][ T6598]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.522064][ T6598]  ? __raw_spin_lock_init+0x45/0x100
[  340.522090][ T6598]  ? __init_swait_queue_head+0xa8/0x150
[  340.522140][ T6598]  gfs2_sys_fs_add+0x257/0x480
[  340.522166][ T6598]  ? is_dynamic_key+0x1aa/0x1c0
[  340.522191][ T6598]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.522227][ T6598]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.522278][ T6598]  gfs2_fill_super+0x1368/0x20f0
[  340.522324][ T6598]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.522353][ T6598]  ? rt_spin_unlock+0x157/0x200
[  340.522380][ T6598]  ? sb_set_blocksize+0x11b/0x210
[  340.522406][ T6598]  ? setup_bdev_super+0x586/0x680
[  340.522441][ T6598]  get_tree_bdev_flags+0x430/0x4f0
[  340.522473][ T6598]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.522503][ T6598]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.522536][ T6598]  ? rcu_is_watching+0x15/0xb0
[  340.522571][ T6598]  gfs2_get_tree+0x51/0x1e0
[  340.522607][ T6598]  vfs_get_tree+0x92/0x2a0
[  340.522696][ T6598]  do_new_mount+0x319/0xdc0
[  340.522729][ T6598]  ? cap_capable+0x123/0x460
[  340.522759][ T6598]  ? __pfx_do_new_mount+0x10/0x10
[  340.522807][ T6598]  ? ns_capable+0x89/0xe0
[  340.522843][ T6598]  ? path_mount+0x647/0x1050
[  340.522870][ T6598]  ? user_path_at+0xd4/0x160
[  340.522899][ T6598]  __se_sys_mount+0x31d/0x420
[  340.522930][ T6598]  ? __pfx___se_sys_mount+0x10/0x10
[  340.522964][ T6598]  ? __x64_sys_mount+0x20/0xc0
[  340.522988][ T6598]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.523012][ T6598]  do_syscall_64+0x174/0x580
[  340.523040][ T6598]  ? trace_irq_disable+0x3b/0x140
[  340.523075][ T6598]  ? clear_bhb_loop+0x40/0x90
[  340.523104][ T6598]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.523126][ T6598] RIP: 0033:0x7f81de08f0ca
[  340.523145][ T6598] 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
[  340.523162][ T6598] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.523184][ T6598] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  340.523200][ T6598] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  340.523215][ T6598] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  340.523228][ T6598] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  340.523243][ T6598] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  340.523276][ T6598]  </TASK>
[  340.565310][ T6598] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.565340][ T6598] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.662029][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  340.723099][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  341.169184][ T6601] loop1: detected capacity change from 0 to 32768
[  341.174864][ T6601] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  341.174889][ T6601] CPU: 1 UID: 0 PID: 6601 Comm: syz.1.215 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  341.174915][ T6601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  341.174928][ T6601] Call Trace:
[  341.174937][ T6601]  <TASK>
[  341.174947][ T6601]  dump_stack_lvl+0xe8/0x150
[  341.174987][ T6601]  sysfs_create_dir_ns+0x271/0x2a0
[  341.175018][ T6601]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  341.175051][ T6601]  ? rt_spin_unlock+0x163/0x200
[  341.175077][ T6601]  kobject_add_internal+0x62c/0xce0
[  341.175114][ T6601]  kobject_init_and_add+0x12b/0x1a0
[  341.175152][ T6601]  ? __pfx_kobject_init_and_add+0x10/0x10
[  341.175186][ T6601]  ? __raw_spin_lock_init+0x45/0x100
[  341.175214][ T6601]  ? __init_swait_queue_head+0xa8/0x150
[  341.175250][ T6601]  gfs2_sys_fs_add+0x257/0x480
[  341.175275][ T6601]  ? is_dynamic_key+0x1aa/0x1c0
[  341.175301][ T6601]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  341.175334][ T6601]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  341.175381][ T6601]  gfs2_fill_super+0x1368/0x20f0
[  341.175427][ T6601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.175456][ T6601]  ? rt_spin_unlock+0x157/0x200
[  341.175480][ T6601]  ? sb_set_blocksize+0x11b/0x210
[  341.175505][ T6601]  ? setup_bdev_super+0x586/0x680
[  341.175537][ T6601]  get_tree_bdev_flags+0x430/0x4f0
[  341.175568][ T6601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.175598][ T6601]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  341.175632][ T6601]  ? rcu_is_watching+0x15/0xb0
[  341.175675][ T6601]  gfs2_get_tree+0x51/0x1e0
[  341.175706][ T6601]  vfs_get_tree+0x92/0x2a0
[  341.175736][ T6601]  do_new_mount+0x319/0xdc0
[  341.175758][ T6601]  ? cap_capable+0x123/0x460
[  341.175786][ T6601]  ? __pfx_do_new_mount+0x10/0x10
[  341.175810][ T6601]  ? ns_capable+0x89/0xe0
[  341.175836][ T6601]  ? path_mount+0x647/0x1050
[  341.175862][ T6601]  ? user_path_at+0xd4/0x160
[  341.175889][ T6601]  __se_sys_mount+0x31d/0x420
[  341.175918][ T6601]  ? __pfx___se_sys_mount+0x10/0x10
[  341.175948][ T6601]  ? __x64_sys_mount+0x20/0xc0
[  341.175970][ T6601]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.175993][ T6601]  do_syscall_64+0x174/0x580
[  341.176014][ T6601]  ? trace_irq_disable+0x3b/0x140
[  341.176037][ T6601]  ? clear_bhb_loop+0x40/0x90
[  341.176061][ T6601]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.176079][ T6601] RIP: 0033:0x7f81de08f0ca
[  341.176099][ 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
[  341.176116][ T6601] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  341.176138][ T6601] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  341.176154][ T6601] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  341.176168][ T6601] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  341.176182][ T6601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  341.176195][ T6601] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  341.176227][ T6601]  </TASK>
[  341.178384][ 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.
[  341.178404][ T6601] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  341.591965][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  341.662821][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  341.724962][ T6604] loop1: detected capacity change from 0 to 32768
[  341.744989][ T6604] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  341.745016][ T6604] CPU: 0 UID: 0 PID: 6604 Comm: syz.1.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  341.745040][ T6604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  341.745054][ T6604] Call Trace:
[  341.745063][ T6604]  <TASK>
[  341.745072][ T6604]  dump_stack_lvl+0xe8/0x150
[  341.745112][ T6604]  sysfs_create_dir_ns+0x271/0x2a0
[  341.745144][ T6604]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  341.745179][ T6604]  ? rt_spin_unlock+0x163/0x200
[  341.745205][ T6604]  kobject_add_internal+0x62c/0xce0
[  341.745255][ T6604]  kobject_init_and_add+0x12b/0x1a0
[  341.745293][ T6604]  ? __pfx_kobject_init_and_add+0x10/0x10
[  341.745328][ T6604]  ? __raw_spin_lock_init+0x45/0x100
[  341.745354][ T6604]  ? __init_swait_queue_head+0xa8/0x150
[  341.745395][ T6604]  gfs2_sys_fs_add+0x257/0x480
[  341.745422][ T6604]  ? is_dynamic_key+0x1aa/0x1c0
[  341.745448][ T6604]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  341.745484][ T6604]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  341.745535][ T6604]  gfs2_fill_super+0x1368/0x20f0
[  341.745592][ T6604]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.745621][ T6604]  ? rt_spin_unlock+0x157/0x200
[  341.745647][ T6604]  ? sb_set_blocksize+0x11b/0x210
[  341.745673][ T6604]  ? setup_bdev_super+0x586/0x680
[  341.745708][ T6604]  get_tree_bdev_flags+0x430/0x4f0
[  341.745737][ T6604]  ? __pfx_gfs2_fill_super+0x10/0x10
[  341.745768][ T6604]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  341.745813][ T6604]  ? rcu_is_watching+0x15/0xb0
[  341.745849][ T6604]  gfs2_get_tree+0x51/0x1e0
[  341.745885][ T6604]  vfs_get_tree+0x92/0x2a0
[  341.745917][ T6604]  do_new_mount+0x319/0xdc0
[  341.745943][ T6604]  ? cap_capable+0x123/0x460
[  341.745975][ T6604]  ? __pfx_do_new_mount+0x10/0x10
[  341.746005][ T6604]  ? ns_capable+0x89/0xe0
[  341.746035][ T6604]  ? path_mount+0x647/0x1050
[  341.746066][ T6604]  ? user_path_at+0xd4/0x160
[  341.746099][ T6604]  __se_sys_mount+0x31d/0x420
[  341.746133][ T6604]  ? __pfx___se_sys_mount+0x10/0x10
[  341.746169][ T6604]  ? __x64_sys_mount+0x20/0xc0
[  341.746195][ T6604]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.746219][ T6604]  do_syscall_64+0x174/0x580
[  341.746254][ T6604]  ? trace_irq_disable+0x3b/0x140
[  341.746281][ T6604]  ? clear_bhb_loop+0x40/0x90
[  341.746308][ T6604]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  341.746329][ T6604] RIP: 0033:0x7f81de08f0ca
[  341.746352][ 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
[  341.746371][ T6604] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  341.746396][ T6604] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  341.746413][ T6604] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  341.746429][ T6604] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  341.746444][ T6604] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  341.746459][ T6604] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  341.746494][ T6604]  </TASK>
[  341.748061][ 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.
[  341.748081][ T6604] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  341.767019][ T6604] Flush: task=syz.1.216[6604] dev=loop1 state=2
[  341.852786][ T6604] Teardown: task=syz.1.216[6604] dev=loop1 state=2
[  342.438291][ T6607] loop1: detected capacity change from 0 to 32768
[  342.466094][ T6607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  342.466121][ T6607] CPU: 1 UID: 0 PID: 6607 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  342.466149][ T6607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  342.466162][ T6607] Call Trace:
[  342.466172][ T6607]  <TASK>
[  342.466181][ T6607]  dump_stack_lvl+0xe8/0x150
[  342.466222][ T6607]  sysfs_create_dir_ns+0x271/0x2a0
[  342.466253][ T6607]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  342.466283][ T6607]  ? rt_spin_unlock+0x163/0x200
[  342.466308][ T6607]  kobject_add_internal+0x62c/0xce0
[  342.466347][ T6607]  kobject_init_and_add+0x12b/0x1a0
[  342.466384][ T6607]  ? __pfx_kobject_init_and_add+0x10/0x10
[  342.466418][ T6607]  ? __raw_spin_lock_init+0x45/0x100
[  342.466443][ T6607]  ? __init_swait_queue_head+0xa8/0x150
[  342.466478][ T6607]  gfs2_sys_fs_add+0x257/0x480
[  342.466502][ T6607]  ? is_dynamic_key+0x1aa/0x1c0
[  342.466529][ T6607]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  342.466564][ T6607]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  342.466624][ T6607]  gfs2_fill_super+0x1368/0x20f0
[  342.466670][ T6607]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.466699][ T6607]  ? rt_spin_unlock+0x157/0x200
[  342.466723][ T6607]  ? sb_set_blocksize+0x11b/0x210
[  342.466748][ T6607]  ? setup_bdev_super+0x586/0x680
[  342.466783][ T6607]  get_tree_bdev_flags+0x430/0x4f0
[  342.466814][ T6607]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.466844][ T6607]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  342.466879][ T6607]  ? rcu_is_watching+0x15/0xb0
[  342.466914][ T6607]  gfs2_get_tree+0x51/0x1e0
[  342.466948][ T6607]  vfs_get_tree+0x92/0x2a0
[  342.466981][ T6607]  do_new_mount+0x319/0xdc0
[  342.467006][ T6607]  ? cap_capable+0x123/0x460
[  342.467037][ T6607]  ? __pfx_do_new_mount+0x10/0x10
[  342.467066][ T6607]  ? ns_capable+0x89/0xe0
[  342.467096][ T6607]  ? path_mount+0x647/0x1050
[  342.467124][ T6607]  ? user_path_at+0xd4/0x160
[  342.467155][ T6607]  __se_sys_mount+0x31d/0x420
[  342.467187][ T6607]  ? __pfx___se_sys_mount+0x10/0x10
[  342.467219][ T6607]  ? __x64_sys_mount+0x20/0xc0
[  342.467245][ T6607]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.467268][ T6607]  do_syscall_64+0x174/0x580
[  342.467294][ T6607]  ? trace_irq_disable+0x3b/0x140
[  342.467319][ T6607]  ? clear_bhb_loop+0x40/0x90
[  342.467347][ T6607]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.467368][ T6607] RIP: 0033:0x7f81de08f0ca
[  342.467389][ 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
[  342.467407][ T6607] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  342.467430][ T6607] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  342.467446][ T6607] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  342.467461][ T6607] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  342.467476][ T6607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  342.467491][ T6607] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  342.467524][ T6607]  </TASK>
[  342.467556][ 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.
[  342.467573][ T6607] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  342.850167][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  342.922826][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  343.013699][ T6610] loop1: detected capacity change from 0 to 32768
[  343.017297][ T6610] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.017323][ T6610] CPU: 1 UID: 0 PID: 6610 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.017349][ T6610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  343.017362][ T6610] Call Trace:
[  343.017372][ T6610]  <TASK>
[  343.017381][ T6610]  dump_stack_lvl+0xe8/0x150
[  343.017422][ T6610]  sysfs_create_dir_ns+0x271/0x2a0
[  343.017453][ T6610]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.017486][ T6610]  ? rt_spin_unlock+0x163/0x200
[  343.017511][ T6610]  kobject_add_internal+0x62c/0xce0
[  343.017551][ T6610]  kobject_init_and_add+0x12b/0x1a0
[  343.017589][ T6610]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.017628][ T6610]  ? __raw_spin_lock_init+0x45/0x100
[  343.017652][ T6610]  ? __init_swait_queue_head+0xa8/0x150
[  343.017689][ T6610]  gfs2_sys_fs_add+0x257/0x480
[  343.017714][ T6610]  ? is_dynamic_key+0x1aa/0x1c0
[  343.017741][ T6610]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.017777][ T6610]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.017828][ T6610]  gfs2_fill_super+0x1368/0x20f0
[  343.017875][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.017904][ T6610]  ? rt_spin_unlock+0x157/0x200
[  343.017931][ T6610]  ? sb_set_blocksize+0x11b/0x210
[  343.017957][ T6610]  ? setup_bdev_super+0x586/0x680
[  343.017992][ T6610]  get_tree_bdev_flags+0x430/0x4f0
[  343.018022][ T6610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.018051][ T6610]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.018082][ T6610]  ? rcu_is_watching+0x15/0xb0
[  343.018117][ T6610]  gfs2_get_tree+0x51/0x1e0
[  343.018159][ T6610]  vfs_get_tree+0x92/0x2a0
[  343.018189][ T6610]  do_new_mount+0x319/0xdc0
[  343.018212][ T6610]  ? cap_capable+0x123/0x460
[  343.018241][ T6610]  ? __pfx_do_new_mount+0x10/0x10
[  343.018269][ T6610]  ? ns_capable+0x89/0xe0
[  343.018296][ T6610]  ? path_mount+0x647/0x1050
[  343.018325][ T6610]  ? user_path_at+0xd4/0x160
[  343.018356][ T6610]  __se_sys_mount+0x31d/0x420
[  343.018388][ T6610]  ? __pfx___se_sys_mount+0x10/0x10
[  343.018420][ T6610]  ? __x64_sys_mount+0x20/0xc0
[  343.018445][ T6610]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.018469][ T6610]  do_syscall_64+0x174/0x580
[  343.018494][ T6610]  ? trace_irq_disable+0x3b/0x140
[  343.018521][ T6610]  ? clear_bhb_loop+0x40/0x90
[  343.018548][ T6610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.018568][ T6610] RIP: 0033:0x7f81de08f0ca
[  343.018588][ 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
[  343.018606][ T6610] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.018630][ T6610] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  343.018646][ T6610] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  343.018660][ T6610] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  343.018674][ T6610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  343.018688][ T6610] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  343.018721][ T6610]  </TASK>
[  343.018834][ 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.
[  343.018852][ T6610] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  343.035424][ T6610] Flush: task=syz.1.218[6610] dev=loop1 state=2
[  343.133451][ T6610] Teardown: task=syz.1.218[6610] dev=loop1 state=2
[  343.714283][ T6613] loop1: detected capacity change from 0 to 32768
[  343.725907][ T6613] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.725931][ T6613] CPU: 0 UID: 0 PID: 6613 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.725956][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  343.725968][ T6613] Call Trace:
[  343.725977][ T6613]  <TASK>
[  343.725986][ T6613]  dump_stack_lvl+0xe8/0x150
[  343.726024][ T6613]  sysfs_create_dir_ns+0x271/0x2a0
[  343.726055][ T6613]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.726085][ T6613]  ? rt_spin_unlock+0x163/0x200
[  343.726109][ T6613]  kobject_add_internal+0x62c/0xce0
[  343.726148][ T6613]  kobject_init_and_add+0x12b/0x1a0
[  343.726184][ T6613]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.726217][ T6613]  ? __raw_spin_lock_init+0x45/0x100
[  343.726245][ T6613]  ? __init_swait_queue_head+0xa8/0x150
[  343.726279][ T6613]  gfs2_sys_fs_add+0x257/0x480
[  343.726301][ T6613]  ? is_dynamic_key+0x1aa/0x1c0
[  343.726335][ T6613]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.726370][ T6613]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.726418][ T6613]  gfs2_fill_super+0x1368/0x20f0
[  343.726462][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.726490][ T6613]  ? rt_spin_unlock+0x157/0x200
[  343.726516][ T6613]  ? sb_set_blocksize+0x11b/0x210
[  343.726540][ T6613]  ? setup_bdev_super+0x586/0x680
[  343.726574][ T6613]  get_tree_bdev_flags+0x430/0x4f0
[  343.726605][ T6613]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.726633][ T6613]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.726668][ T6613]  ? rcu_is_watching+0x15/0xb0
[  343.726702][ T6613]  gfs2_get_tree+0x51/0x1e0
[  343.726735][ T6613]  vfs_get_tree+0x92/0x2a0
[  343.726768][ T6613]  do_new_mount+0x319/0xdc0
[  343.726793][ T6613]  ? cap_capable+0x123/0x460
[  343.726824][ T6613]  ? __pfx_do_new_mount+0x10/0x10
[  343.726852][ T6613]  ? ns_capable+0x89/0xe0
[  343.726882][ T6613]  ? path_mount+0x647/0x1050
[  343.726911][ T6613]  ? user_path_at+0xd4/0x160
[  343.726942][ T6613]  __se_sys_mount+0x31d/0x420
[  343.726975][ T6613]  ? __pfx___se_sys_mount+0x10/0x10
[  343.727007][ T6613]  ? __x64_sys_mount+0x20/0xc0
[  343.727032][ T6613]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.727057][ T6613]  do_syscall_64+0x174/0x580
[  343.727083][ T6613]  ? trace_irq_disable+0x3b/0x140
[  343.727107][ T6613]  ? clear_bhb_loop+0x40/0x90
[  343.727133][ T6613]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.727155][ T6613] RIP: 0033:0x7f81de08f0ca
[  343.727177][ 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
[  343.727195][ T6613] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.727218][ T6613] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  343.727234][ T6613] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  343.727250][ T6613] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  343.727265][ T6613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  343.727279][ T6613] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  343.727322][ T6613]  </TASK>
[  343.782831][ 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.
[  343.782857][ T6613] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  343.845638][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  343.933206][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  344.380281][ T6616] loop1: detected capacity change from 0 to 32768
[  344.401790][ T6616] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  344.401816][ T6616] CPU: 0 UID: 0 PID: 6616 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  344.401841][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  344.401854][ T6616] Call Trace:
[  344.401863][ T6616]  <TASK>
[  344.401873][ T6616]  dump_stack_lvl+0xe8/0x150
[  344.401915][ T6616]  sysfs_create_dir_ns+0x271/0x2a0
[  344.401946][ T6616]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  344.401977][ T6616]  ? rt_spin_unlock+0x163/0x200
[  344.402002][ T6616]  kobject_add_internal+0x62c/0xce0
[  344.402038][ T6616]  kobject_init_and_add+0x12b/0x1a0
[  344.402074][ T6616]  ? __pfx_kobject_init_and_add+0x10/0x10
[  344.402108][ T6616]  ? __raw_spin_lock_init+0x45/0x100
[  344.402133][ T6616]  ? __init_swait_queue_head+0xa8/0x150
[  344.402169][ T6616]  gfs2_sys_fs_add+0x257/0x480
[  344.402195][ T6616]  ? is_dynamic_key+0x1aa/0x1c0
[  344.402221][ T6616]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  344.402265][ T6616]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  344.402314][ T6616]  gfs2_fill_super+0x1368/0x20f0
[  344.402361][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.402388][ T6616]  ? rt_spin_unlock+0x157/0x200
[  344.402413][ T6616]  ? sb_set_blocksize+0x11b/0x210
[  344.402439][ T6616]  ? setup_bdev_super+0x586/0x680
[  344.402474][ T6616]  get_tree_bdev_flags+0x430/0x4f0
[  344.402505][ T6616]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.402535][ T6616]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  344.402568][ T6616]  ? rcu_is_watching+0x15/0xb0
[  344.402603][ T6616]  gfs2_get_tree+0x51/0x1e0
[  344.402636][ T6616]  vfs_get_tree+0x92/0x2a0
[  344.402667][ T6616]  do_new_mount+0x319/0xdc0
[  344.402691][ T6616]  ? cap_capable+0x123/0x460
[  344.402719][ T6616]  ? __pfx_do_new_mount+0x10/0x10
[  344.402747][ T6616]  ? ns_capable+0x89/0xe0
2026/07/11 22:30:25 executed programs: 206
[  344.402775][ T6616]  ? path_mount+0x647/0x1050
[  344.402803][ T6616]  ? user_path_at+0xd4/0x160
[  344.402834][ T6616]  __se_sys_mount+0x31d/0x420
[  344.402867][ T6616]  ? __pfx___se_sys_mount+0x10/0x10
[  344.402899][ T6616]  ? __x64_sys_mount+0x20/0xc0
[  344.402925][ T6616]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.402949][ T6616]  do_syscall_64+0x174/0x580
[  344.402974][ T6616]  ? trace_irq_disable+0x3b/0x140
[  344.402999][ T6616]  ? clear_bhb_loop+0x40/0x90
[  344.403025][ T6616]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.403046][ T6616] RIP: 0033:0x7f81de08f0ca
[  344.403069][ 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
[  344.403087][ T6616] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  344.403112][ T6616] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  344.403128][ T6616] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  344.403144][ T6616] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  344.403159][ T6616] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  344.403173][ T6616] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  344.403209][ T6616]  </TASK>
[  344.488279][ 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.
[  344.488304][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  344.695251][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  344.772841][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  345.063340][ T6619] loop1: detected capacity change from 0 to 32768
[  345.076227][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  345.076250][ T6619] CPU: 1 UID: 0 PID: 6619 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  345.076274][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  345.076286][ T6619] Call Trace:
[  345.076295][ T6619]  <TASK>
[  345.076303][ T6619]  dump_stack_lvl+0xe8/0x150
[  345.076338][ T6619]  sysfs_create_dir_ns+0x271/0x2a0
[  345.076366][ T6619]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  345.076394][ T6619]  ? rt_spin_unlock+0x163/0x200
[  345.076417][ T6619]  kobject_add_internal+0x62c/0xce0
[  345.076451][ T6619]  kobject_init_and_add+0x12b/0x1a0
[  345.076483][ T6619]  ? __pfx_kobject_init_and_add+0x10/0x10
[  345.076512][ T6619]  ? __raw_spin_lock_init+0x45/0x100
[  345.076534][ T6619]  ? __init_swait_queue_head+0xa8/0x150
[  345.076565][ T6619]  gfs2_sys_fs_add+0x257/0x480
[  345.076587][ T6619]  ? is_dynamic_key+0x1aa/0x1c0
[  345.076611][ T6619]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  345.076646][ T6619]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  345.076697][ T6619]  gfs2_fill_super+0x1368/0x20f0
[  345.076737][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.076762][ T6619]  ? rt_spin_unlock+0x157/0x200
[  345.076785][ T6619]  ? sb_set_blocksize+0x11b/0x210
[  345.076807][ T6619]  ? setup_bdev_super+0x586/0x680
[  345.076837][ T6619]  get_tree_bdev_flags+0x430/0x4f0
[  345.076865][ T6619]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.076892][ T6619]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  345.076926][ T6619]  ? rcu_is_watching+0x15/0xb0
[  345.076958][ T6619]  gfs2_get_tree+0x51/0x1e0
[  345.076988][ T6619]  vfs_get_tree+0x92/0x2a0
[  345.077017][ T6619]  do_new_mount+0x319/0xdc0
[  345.077039][ T6619]  ? cap_capable+0x123/0x460
[  345.077066][ T6619]  ? __pfx_do_new_mount+0x10/0x10
[  345.077092][ T6619]  ? ns_capable+0x89/0xe0
[  345.077118][ T6619]  ? path_mount+0x647/0x1050
[  345.077143][ T6619]  ? user_path_at+0xd4/0x160
[  345.077171][ T6619]  __se_sys_mount+0x31d/0x420
[  345.077201][ T6619]  ? __pfx___se_sys_mount+0x10/0x10
[  345.077230][ T6619]  ? __x64_sys_mount+0x20/0xc0
[  345.077252][ T6619]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.077275][ T6619]  do_syscall_64+0x174/0x580
[  345.077297][ T6619]  ? trace_irq_disable+0x3b/0x140
[  345.077319][ T6619]  ? clear_bhb_loop+0x40/0x90
[  345.077343][ T6619]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.077362][ T6619] RIP: 0033:0x7f81de08f0ca
[  345.077381][ 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
[  345.077397][ T6619] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  345.077419][ T6619] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  345.077433][ T6619] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  345.077447][ T6619] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  345.077460][ T6619] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  345.077473][ T6619] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  345.077503][ T6619]  </TASK>
[  345.078948][ 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.
[  345.078967][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  345.294992][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  345.442852][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  345.714766][ T6622] loop1: detected capacity change from 0 to 32768
[  345.721887][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  345.721912][ T6622] CPU: 1 UID: 0 PID: 6622 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  345.721936][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  345.721949][ T6622] Call Trace:
[  345.721959][ T6622]  <TASK>
[  345.721968][ T6622]  dump_stack_lvl+0xe8/0x150
[  345.722007][ T6622]  sysfs_create_dir_ns+0x271/0x2a0
[  345.722036][ T6622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  345.722064][ T6622]  ? rt_spin_unlock+0x163/0x200
[  345.722089][ T6622]  kobject_add_internal+0x62c/0xce0
[  345.722127][ T6622]  kobject_init_and_add+0x12b/0x1a0
[  345.722170][ T6622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  345.722218][ T6622]  ? __raw_spin_lock_init+0x45/0x100
[  345.722242][ T6622]  ? __init_swait_queue_head+0xa8/0x150
[  345.722275][ T6622]  gfs2_sys_fs_add+0x257/0x480
[  345.722299][ T6622]  ? is_dynamic_key+0x1aa/0x1c0
[  345.722324][ T6622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  345.722357][ T6622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  345.722403][ T6622]  gfs2_fill_super+0x1368/0x20f0
[  345.722448][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.722475][ T6622]  ? rt_spin_unlock+0x157/0x200
[  345.722499][ T6622]  ? sb_set_blocksize+0x11b/0x210
[  345.722523][ T6622]  ? setup_bdev_super+0x586/0x680
[  345.722555][ T6622]  get_tree_bdev_flags+0x430/0x4f0
[  345.722584][ T6622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  345.722615][ T6622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  345.722653][ T6622]  ? rcu_is_watching+0x15/0xb0
[  345.722694][ T6622]  gfs2_get_tree+0x51/0x1e0
[  345.722728][ T6622]  vfs_get_tree+0x92/0x2a0
[  345.722758][ T6622]  do_new_mount+0x319/0xdc0
[  345.722783][ T6622]  ? cap_capable+0x123/0x460
[  345.722813][ T6622]  ? __pfx_do_new_mount+0x10/0x10
[  345.722841][ T6622]  ? ns_capable+0x89/0xe0
[  345.722871][ T6622]  ? path_mount+0x647/0x1050
[  345.722899][ T6622]  ? user_path_at+0xd4/0x160
[  345.722930][ T6622]  __se_sys_mount+0x31d/0x420
[  345.722962][ T6622]  ? __pfx___se_sys_mount+0x10/0x10
[  345.722995][ T6622]  ? __x64_sys_mount+0x20/0xc0
[  345.723020][ T6622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.723043][ T6622]  do_syscall_64+0x174/0x580
[  345.723069][ T6622]  ? trace_irq_disable+0x3b/0x140
[  345.723094][ T6622]  ? clear_bhb_loop+0x40/0x90
[  345.723121][ T6622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  345.723142][ T6622] RIP: 0033:0x7f81de08f0ca
[  345.723164][ 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
[  345.723182][ T6622] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  345.723207][ T6622] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  345.723224][ T6622] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  345.723239][ T6622] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  345.723253][ T6622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  345.723268][ T6622] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  345.723302][ T6622]  </TASK>
[  345.727370][ 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.
[  345.727393][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  345.896372][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  345.972859][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  346.348382][ T6625] loop1: detected capacity change from 0 to 32768
[  346.360723][ T6625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  346.360749][ T6625] CPU: 0 UID: 0 PID: 6625 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  346.360775][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  346.360788][ T6625] Call Trace:
[  346.360798][ T6625]  <TASK>
[  346.360807][ T6625]  dump_stack_lvl+0xe8/0x150
[  346.360846][ T6625]  sysfs_create_dir_ns+0x271/0x2a0
[  346.360876][ T6625]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  346.360913][ T6625]  ? rt_spin_unlock+0x163/0x200
[  346.360939][ T6625]  kobject_add_internal+0x62c/0xce0
[  346.360976][ T6625]  kobject_init_and_add+0x12b/0x1a0
[  346.361014][ T6625]  ? __pfx_kobject_init_and_add+0x10/0x10
[  346.361045][ T6625]  ? __raw_spin_lock_init+0x45/0x100
[  346.361069][ T6625]  ? __init_swait_queue_head+0xa8/0x150
[  346.361115][ T6625]  gfs2_sys_fs_add+0x257/0x480
[  346.361140][ T6625]  ? is_dynamic_key+0x1aa/0x1c0
[  346.361166][ T6625]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  346.361201][ T6625]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  346.361250][ T6625]  gfs2_fill_super+0x1368/0x20f0
[  346.361295][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.361322][ T6625]  ? rt_spin_unlock+0x157/0x200
[  346.361347][ T6625]  ? sb_set_blocksize+0x11b/0x210
[  346.361372][ T6625]  ? setup_bdev_super+0x586/0x680
[  346.361406][ T6625]  get_tree_bdev_flags+0x430/0x4f0
[  346.361438][ T6625]  ? __pfx_gfs2_fill_super+0x10/0x10
[  346.361466][ T6625]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  346.361496][ T6625]  ? rcu_is_watching+0x15/0xb0
[  346.361531][ T6625]  gfs2_get_tree+0x51/0x1e0
[  346.361565][ T6625]  vfs_get_tree+0x92/0x2a0
[  346.361595][ T6625]  do_new_mount+0x319/0xdc0
[  346.361619][ T6625]  ? cap_capable+0x123/0x460
[  346.361649][ T6625]  ? __pfx_do_new_mount+0x10/0x10
[  346.361676][ T6625]  ? ns_capable+0x89/0xe0
[  346.361705][ T6625]  ? path_mount+0x647/0x1050
[  346.361733][ T6625]  ? user_path_at+0xd4/0x160
[  346.361764][ T6625]  __se_sys_mount+0x31d/0x420
[  346.361797][ T6625]  ? __pfx___se_sys_mount+0x10/0x10
[  346.361830][ T6625]  ? __x64_sys_mount+0x20/0xc0
[  346.361854][ T6625]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.361877][ T6625]  do_syscall_64+0x174/0x580
[  346.361900][ T6625]  ? trace_irq_disable+0x3b/0x140
[  346.361926][ T6625]  ? clear_bhb_loop+0x40/0x90
[  346.361953][ T6625]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  346.361973][ T6625] RIP: 0033:0x7f81de08f0ca
[  346.361994][ 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
[  346.362011][ T6625] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  346.362036][ T6625] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  346.362053][ T6625] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  346.362068][ T6625] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  346.362093][ T6625] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  346.362108][ T6625] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  346.362149][ T6625]  </TASK>
[  346.437710][ 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.
[  346.437736][ T6625] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  346.574818][ T6625] Flush: task=syz.1.223[6625] dev=loop1 state=2
[  346.663206][ T6625] Teardown: task=syz.1.223[6625] dev=loop1 state=2
[  347.083427][ T6628] loop1: detected capacity change from 0 to 32768
[  347.089171][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  347.089196][ T6628] CPU: 0 UID: 0 PID: 6628 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.089219][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.089233][ T6628] Call Trace:
[  347.089241][ T6628]  <TASK>
[  347.089251][ T6628]  dump_stack_lvl+0xe8/0x150
[  347.089287][ T6628]  sysfs_create_dir_ns+0x271/0x2a0
[  347.089318][ T6628]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  347.089350][ T6628]  ? rt_spin_unlock+0x163/0x200
[  347.089376][ T6628]  kobject_add_internal+0x62c/0xce0
[  347.089415][ T6628]  kobject_init_and_add+0x12b/0x1a0
[  347.089451][ T6628]  ? __pfx_kobject_init_and_add+0x10/0x10
[  347.089483][ T6628]  ? __raw_spin_lock_init+0x45/0x100
[  347.089507][ T6628]  ? __init_swait_queue_head+0xa8/0x150
[  347.089544][ T6628]  gfs2_sys_fs_add+0x257/0x480
[  347.089568][ T6628]  ? is_dynamic_key+0x1aa/0x1c0
[  347.089598][ T6628]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  347.089632][ T6628]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  347.089682][ T6628]  gfs2_fill_super+0x1368/0x20f0
[  347.089724][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.089749][ T6628]  ? rt_spin_unlock+0x157/0x200
[  347.089784][ T6628]  ? sb_set_blocksize+0x11b/0x210
[  347.089809][ T6628]  ? setup_bdev_super+0x586/0x680
[  347.089842][ T6628]  get_tree_bdev_flags+0x430/0x4f0
[  347.089873][ T6628]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.089903][ T6628]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  347.089936][ T6628]  ? rcu_is_watching+0x15/0xb0
[  347.089969][ T6628]  gfs2_get_tree+0x51/0x1e0
[  347.090002][ T6628]  vfs_get_tree+0x92/0x2a0
[  347.090033][ T6628]  do_new_mount+0x319/0xdc0
[  347.090058][ T6628]  ? cap_capable+0x123/0x460
[  347.090089][ T6628]  ? __pfx_do_new_mount+0x10/0x10
[  347.090118][ T6628]  ? ns_capable+0x89/0xe0
[  347.090147][ T6628]  ? path_mount+0x647/0x1050
[  347.090175][ T6628]  ? user_path_at+0xd4/0x160
[  347.090204][ T6628]  __se_sys_mount+0x31d/0x420
[  347.090236][ T6628]  ? __pfx___se_sys_mount+0x10/0x10
[  347.090269][ T6628]  ? __x64_sys_mount+0x20/0xc0
[  347.090295][ T6628]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.090318][ T6628]  do_syscall_64+0x174/0x580
[  347.090344][ T6628]  ? trace_irq_disable+0x3b/0x140
[  347.090369][ T6628]  ? clear_bhb_loop+0x40/0x90
[  347.090396][ T6628]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.090418][ T6628] RIP: 0033:0x7f81de08f0ca
[  347.090439][ 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
[  347.090457][ T6628] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  347.090482][ T6628] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  347.090499][ T6628] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  347.090514][ T6628] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  347.090529][ T6628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  347.090544][ T6628] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  347.090579][ T6628]  </TASK>
[  347.090636][ 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.
[  347.090654][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  347.175449][ T5970] Flush: task=udevd[5970] dev=loop1 state=2
[  347.249017][ T5970] Teardown: task=udevd[5970] dev=loop1 state=2
[  347.412900][   T39] INFO: task kworker/0:3:5681 blocked in I/O wait for more than 143 seconds.
[  347.412928][   T39]       Not tainted syzkaller #0
[  347.412940][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  347.412950][   T39] task:kworker/0:3     state:D stack:22200 pid:5681  tgid:5681  ppid:2      task_flags:0x4208060 flags:0x00080000
[  347.413015][   T39] Workqueue: gfs2_recovery gfs2_recover_func
[  347.413052][   T39] Call Trace:
[  347.413059][   T39]  <TASK>
[  347.413074][   T39]  __schedule+0x1709/0x5530
[  347.413133][   T39]  ? __pfx___schedule+0x10/0x10
[  347.413169][   T39]  ? schedule+0x90/0x2b0
[  347.413196][   T39]  schedule+0x164/0x2b0
[  347.413223][   T39]  io_schedule+0x7f/0xd0
[  347.413250][   T39]  folio_wait_bit_common+0x83c/0xbc0
[  347.413302][   T39]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  347.413340][   T39]  ? __pfx_wake_page_function+0x10/0x10
[  347.413395][   T39]  gfs2_jhead_process_page+0x17f/0x670
[  347.413430][   T39]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  347.413475][   T39]  gfs2_find_jhead+0xbe0/0xd20
[  347.413526][   T39]  gfs2_recover_func+0x6bd/0x1f00
[  347.413559][   T39]  ? unwind_next_frame+0x8f/0x2550
[  347.413601][   T39]  ? ret_from_fork_asm+0x1a/0x30
[  347.413628][   T39]  ? stack_trace_save+0xa9/0x100
[  347.413652][   T39]  ? __pfx_gfs2_recover_func+0x10/0x10
[  347.413685][   T39]  ? check_path+0x21/0x40
[  347.413719][   T39]  ? add_lock_to_list+0xc7/0x100
[  347.413751][   T39]  ? lockdep_unlock+0x5d/0xd0
[  347.413772][   T39]  ? __lock_acquire+0x14b9/0x2e40
[  347.413847][   T39]  ? rcu_is_watching+0x15/0xb0
[  347.413879][   T39]  ? process_one_work+0x7fd/0x1480
[  347.413908][   T39]  process_one_work+0xaaf/0x1480
[  347.413959][   T39]  ? __pfx_process_one_work+0x10/0x10
[  347.413985][   T39]  ? do_raw_spin_lock+0x12b/0x2f0
[  347.414014][   T39]  ? assign_work+0x3cf/0x5d0
[  347.414049][   T39]  worker_thread+0xb05/0x10d0
[  347.414089][   T39]  ? __kthread_parkme+0x71/0x1f0
[  347.414130][   T39]  kthread+0x388/0x470
[  347.414153][   T39]  ? __pfx_worker_thread+0x10/0x10
[  347.414180][   T39]  ? __pfx_kthread+0x10/0x10
[  347.508805][   T39]  ret_from_fork+0x514/0xb70
[  347.508848][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  347.508872][   T39]  ? __switch_to+0xc89/0x1420
[  347.508907][   T39]  ? __pfx_kthread+0x10/0x10
[  347.508931][   T39]  ret_from_fork_asm+0x1a/0x30
[  347.508970][   T39]  </TASK>
[  347.508990][   T39] INFO: task syz.0.17:5961 blocked for more than 143 seconds.
[  347.509007][   T39]       Not tainted syzkaller #0
[  347.509018][   T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  347.509029][   T39] task:syz.0.17        state:D stack:25032 pid:5961  tgid:5961  ppid:5808   task_flags:0x400140 flags:0x00080002
[  347.509095][   T39] Call Trace:
[  347.509104][   T39]  <TASK>
[  347.509118][   T39]  __schedule+0x1709/0x5530
[  347.509175][   T39]  ? __pfx___schedule+0x10/0x10
[  347.509220][   T39]  ? schedule+0x90/0x2b0
[  347.509249][   T39]  schedule+0x164/0x2b0
[  347.509275][   T39]  bit_wait+0x11/0xd0
[  347.509303][   T39]  __wait_on_bit+0xac/0x2f0
[  347.509328][   T39]  ? __pfx_bit_wait+0x10/0x10
[  347.509358][   T39]  out_of_line_wait_on_bit+0x13b/0x190
[  347.509386][   T39]  ? __pfx_bit_wait+0x10/0x10
[  347.509411][   T39]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  347.509442][   T39]  ? __pfx_wake_bit_function+0x10/0x10
[  347.509488][   T39]  gfs2_recover_journal+0xda/0x140
[  347.509521][   T39]  init_journal+0x1af4/0x2330
[  347.509567][   T39]  ? init_inodes+0xdb/0x320
[  347.509604][   T39]  ? __pfx_init_journal+0x10/0x10
[  347.509650][   T39]  ? snprintf+0xe8/0x140
[  347.509676][   T39]  ? init_inodes+0xdb/0x320
[  347.509706][   T39]  ? __pfx_snprintf+0x10/0x10
[  347.509729][   T39]  ? gfs2_glock_nq_num+0x13d/0x170
[  347.509757][   T39]  init_inodes+0xdb/0x320
[  347.509789][   T39]  gfs2_fill_super+0x1982/0x20f0
[  347.509834][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.509862][   T39]  ? rt_spin_unlock+0x157/0x200
[  347.509887][   T39]  ? init_locking+0xb8/0x210
[  347.509916][   T39]  ? sb_set_blocksize+0x11b/0x210
[  347.509942][   T39]  ? setup_bdev_super+0x586/0x680
[  347.509979][   T39]  get_tree_bdev_flags+0x430/0x4f0
[  347.510014][   T39]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.510046][   T39]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  347.510082][   T39]  ? rcu_is_watching+0x15/0xb0
[  347.510120][   T39]  gfs2_get_tree+0x51/0x1e0
[  347.510157][   T39]  vfs_get_tree+0x92/0x2a0
[  347.510192][   T39]  do_new_mount+0x319/0xdc0
[  347.638470][   T39]  ? cap_capable+0x123/0x460
[  347.638516][   T39]  ? __pfx_do_new_mount+0x10/0x10
[  347.638548][   T39]  ? ns_capable+0x89/0xe0
[  347.638579][   T39]  ? path_mount+0x647/0x1050
[  347.638609][   T39]  ? user_path_at+0xd4/0x160
[  347.638642][   T39]  __se_sys_mount+0x31d/0x420
[  347.638676][   T39]  ? __pfx___se_sys_mount+0x10/0x10
[  347.638712][   T39]  ? __x64_sys_mount+0x20/0xc0
[  347.638739][   T39]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.638764][   T39]  do_syscall_64+0x174/0x580
[  347.638792][   T39]  ? trace_irq_disable+0x3b/0x140
[  347.638818][   T39]  ? clear_bhb_loop+0x40/0x90
[  347.638847][   T39]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.638871][   T39] RIP: 0033:0x7f8c3e8af0ca
[  347.638892][   T39] RSP: 002b:00007ffe41de9e08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  347.638919][   T39] RAX: ffffffffffffffda RBX: 00007ffe41de9e90 RCX: 00007f8c3e8af0ca
[  347.638937][   T39] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe41de9e50
[  347.638953][   T39] RBP: 000020000001f680 R08: 00007ffe41de9e90 R09: 0000000000000000
[  347.638969][   T39] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  347.638985][   T39] R13: 00007ffe41de9e50 R14: 000000000001f7dd R15: 0000200000000380
[  347.639023][   T39]  </TASK>
[  347.639060][   T39] 
[  347.639060][   T39] Showing all locks held in the system:
[  347.639128][   T39] locks held by pr/legacy/17: 4, last CPU#0:
[  347.639197][   T39]  #0: ffffffff8e1b5a00 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[  347.639278][   T39]  #1: ffffffff8e09d2f8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[  347.639330][   T39]  #2: ffffffff99e47458 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x17c/0x1b40
[  347.639382][   T39]  #3: ffff[  347.639382][   T39]  #3: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  347.639444][   T39] locks held by kworker/1:0/32: 2, last CPU#1:
[  347.639460][   T39]  #0: ffff88813fe1e538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.639513][   T39]  #1: ffffc90000a6fc60 ((gc_work).work){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.639570][   T39] locks held by khungtaskd/39: 1, last CPU#0:
[  347.639585][   T39]  #0: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  347.639638][   T39] locks held by kworker/u8:2/48: 2, on CPU#1:
[  347.639652][   T39]  #0: ffff88813fe5c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.639707][   T39]  #1: ffffc90000ba7c60 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.639769][   T39] locks held by kworker/u8:7/1028: 2, on CPU#1:
[  347.639784][   T39]  #0: ffff88813fe5c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.639839][   T39]  #1: ffffc90005fb7c60 (connector_reaper_work){+.+.}-{0:0}, at: psi_task_switch+0x57/0x7d0
[  347.768800][   T39] locks held by getty/5350: 2, on CPU#0:
[  347.768821][   T39]  #0: ffff8880298c60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  347.768886][   T39]  #1: ffffc900044c32e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360
[  347.768946][   T39] locks held by kworker/0:3/5681: 2, on CPU#0:
[  347.768963][   T39]  #0: ffff88801f7e4938 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.769020][   T39]  #1: ffffc90004ddfc60 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480
[  347.769079][   T39] locks held by syz.0.17/5961: 1, on CPU#0:
[  347.769095][   T39]  #0: ffff888035af20e0 (&type->s_umount_key#53/1){+.+.}-{4:4}, at: sget_fc+0x97c/0x1a60
[  347.769173][   T39] locks held by syz.1.225/6631: 4, last CPU#1:
[  347.769190][   T39]  #0: ffff88801beaa510 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0
[  347.769252][   T39]  #1: ffff88803ea94e90 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  347.769314][   T39]  #2: ffffffff8e1c3840 (rcu_read_lock){....}-{1:3}, at: inode_add_bytes+0x38/0x140
[  347.769369][   T39]  #3: ffff8880b8742d18 (_T->lock){....}-{2:2}, at: rt_spin_lock+0x157/0x400
[  347.769451][   T39] 
[  347.769457][   T39] =============================================
[  347.769457][   T39] 
[  347.769467][   T39] NMI backtrace for cpu 0
[  347.769482][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.769506][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.769519][   T39] Call Trace:
[  347.769529][   T39]  <TASK>
[  347.769539][   T39]  dump_stack_lvl+0xe8/0x150
[  347.769574][   T39]  nmi_cpu_backtrace+0x274/0x2d0
[  347.769597][   T39]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  347.769633][   T39]  nmi_trigger_cpumask_backtrace+0x17a/0x380
[  347.769659][   T39]  sys_info+0x135/0x170
[  347.769689][   T39]  watchdog+0xfd7/0x1030
[  347.769723][   T39]  ? watchdog+0x1c7/0x1030
[  347.769756][   T39]  kthread+0x388/0x470
[  347.769779][   T39]  ? __pfx_watchdog+0x10/0x10
[  347.769800][   T39]  ? __pfx_kthread+0x10/0x10
[  347.769822][   T39]  ret_from_fork+0x514/0xb70
[  347.769848][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  347.769869][   T39]  ? __switch_to+0xc89/0x1420
[  347.769901][   T39]  ? __pfx_kthread+0x10/0x10
[  347.769924][   T39]  ret_from_fork_asm+0x1a/0x30
[  347.769962][   T39]  </TASK>
[  347.769971][   T39] Sending NMI from CPU 0 to CPUs 1:
[  347.770000][    C1] NMI backtrace for cpu 1
[  347.770016][    C1] CPU: 1 UID: 0 PID: 6631 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.770036][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.770045][    C1] RIP: 0010:lock_is_held_type+0x89/0x150
[  347.770068][    C1] Code: 58 07 41 83 bd 08 0c 00 00 00 7e 48 4c 89 eb 48 81 c3 18 0c 00 00 45 31 ff 49 83 ff 31 73 24 48 89 df 4c 89 f6 e8 f7 01 00 00 <85> c0 75 2a 49 ff c7 49 63 85 08 0c 00 00 48 83 c3 28 49 39 c7 7c
[  347.770083][    C1] RSP: 0018:ffffc9000518f568 EFLAGS: 00000046
[  347.770098][    C1] RAX: 0000000000000000 RBX: ffff888027e50c68 RCX: 0000000080000001
[  347.770111][    C1] RDX: 0000000000000001 RSI: ffff8880b8733da8 RDI: ffff888027e50c68
[  347.770124][    C1] RBP: 00000000ffffffff R08: 0000000000000003 R09: 0000000000000004
[  347.770136][    C1] R10: dffffc0000000000 R11: fffff52000a31eec R12: 0000000000000046
[  347.770148][    C1] R13: ffff888027e50000 R14: ffff8880b8733da8 R15: 0000000000000002
[  347.770162][    C1] FS:  0000555563206500(0000) GS:ffff888125d43000(0000) knlGS:0000000000000000
[  347.770177][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  347.770190][    C1] CR2: 00007f81d62ee000 CR3: 000000003207c000 CR4: 00000000003526f0
[  347.770207][    C1] Call Trace:
[  347.770214][    C1]  <TASK>
[  347.770222][    C1]  rtlock_slowlock_locked+0xde/0x3c20
[  347.770243][    C1]  ? __lock_acquire+0x6df/0x2e40
[  347.770265][    C1]  ? __lock_acquire+0x6df/0x2e40
[  347.770284][    C1]  ? rt_mutex_slowunlock+0x4ee/0xa20
[  347.770301][    C1]  ? __pfx_rtlock_slowlock_locked+0x10/0x10
[  347.770318][    C1]  ? do_raw_spin_lock+0x12b/0x2f0
[  347.770336][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  347.770353][    C1]  ? rcu_is_watching+0x15/0xb0
[  347.770376][    C1]  rt_spin_lock+0x165/0x400
[  347.770401][    C1]  ? __pfx_rt_spin_lock+0x10/0x10
[  347.770428][    C1]  __folio_batch_add_and_move+0x283/0xa90
[  347.770447][    C1]  ? __pfx_lru_add+0x10/0x10
[  347.770465][    C1]  shmem_get_folio_gfp+0xc8a/0x1c40
[  347.770497][    C1]  ? __pfx_shmem_get_folio_gfp+0x10/0x10
[  347.770520][    C1]  ? folio_mapping+0x16f/0x1f0
[  347.770544][    C1]  shmem_write_begin+0x166/0x320
[  347.770562][    C1]  generic_perform_write+0x2ad/0x8b0
[  347.770586][    C1]  ? __pfx_generic_perform_write+0x10/0x10
[  347.770606][    C1]  ? preempt_count_add+0x91/0x190
[  347.770634][    C1]  ? mnt_put_write_access_file+0xbf/0x100
[  347.770659][    C1]  ? file_update_time_flags+0x406/0x4b0
[  347.770682][    C1]  shmem_file_write_iter+0xfb/0x120
[  347.770702][    C1]  vfs_write+0x61e/0xbb0
[  347.770722][    C1]  ? handle_mm_fault+0xeb/0x28d0
[  347.770741][    C1]  ? __pfx_vfs_write+0x10/0x10
[  347.770770][    C1]  ksys_write+0x156/0x270
[  347.770791][    C1]  ? __pfx_ksys_write+0x10/0x10
[  347.770815][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.770832][    C1]  do_syscall_64+0x174/0x580
[  347.770851][    C1]  ? trace_irq_disable+0x3b/0x140
[  347.770869][    C1]  ? clear_bhb_loop+0x40/0x90
[  347.770887][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.770903][    C1] RIP: 0033:0x7f81de04e68e
[  347.770919][    C1] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  347.770932][    C1] RSP: 002b:00007ffc97883098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  347.770949][    C1] RAX: ffffffffffffffda RBX: 0000555563206500 RCX: 00007f81de04e68e
[  347.770961][    C1] RDX: 0000000001000000 RSI: 00007f81d52ef000 RDI: 0000000000000003
[  347.770972][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  347.770982][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  347.770993][    C1] R13: 00007ffc978831d0 R14: 00007ffc97883190 R15: 00007f81d52ef000
[  347.771012][    C1]  </TASK>
[  347.953252][ T6631] loop1: detected capacity change from 0 to 32768
[  347.965578][ T6631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  347.965601][ T6631] CPU: 1 UID: 0 PID: 6631 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  347.965631][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  347.965642][ T6631] Call Trace:
[  347.965651][ T6631]  <TASK>
[  347.965659][ T6631]  dump_stack_lvl+0xe8/0x150
[  347.965693][ T6631]  sysfs_create_dir_ns+0x271/0x2a0
[  347.965720][ T6631]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  347.965748][ T6631]  ? rt_spin_unlock+0x163/0x200
[  347.965771][ T6631]  kobject_add_internal+0x62c/0xce0
[  347.965804][ T6631]  kobject_init_and_add+0x12b/0x1a0
[  347.965837][ T6631]  ? __pfx_kobject_init_and_add+0x10/0x10
[  347.965866][ T6631]  ? __raw_spin_lock_init+0x45/0x100
[  347.965888][ T6631]  ? __init_swait_queue_head+0xa8/0x150
[  347.965919][ T6631]  gfs2_sys_fs_add+0x257/0x480
[  347.965940][ T6631]  ? is_dynamic_key+0x1aa/0x1c0
[  347.965989][ T6631]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  347.966020][ T6631]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  347.966063][ T6631]  gfs2_fill_super+0x1368/0x20f0
[  347.966102][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.966126][ T6631]  ? rt_spin_unlock+0x157/0x200
[  347.966149][ T6631]  ? sb_set_blocksize+0x11b/0x210
[  347.966171][ T6631]  ? setup_bdev_super+0x586/0x680
[  347.966201][ T6631]  get_tree_bdev_flags+0x430/0x4f0
[  347.966229][ T6631]  ? __pfx_gfs2_fill_super+0x10/0x10
[  347.966255][ T6631]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  347.966285][ T6631]  ? rcu_is_watching+0x15/0xb0
[  347.966315][ T6631]  gfs2_get_tree+0x51/0x1e0
[  347.966345][ T6631]  vfs_get_tree+0x92/0x2a0
[  347.966374][ T6631]  do_new_mount+0x319/0xdc0
[  347.966396][ T6631]  ? cap_capable+0x123/0x460
[  347.966423][ T6631]  ? __pfx_do_new_mount+0x10/0x10
[  347.966448][ T6631]  ? ns_capable+0x89/0xe0
[  347.966474][ T6631]  ? path_mount+0x647/0x1050
[  347.966500][ T6631]  ? user_path_at+0xd4/0x160
[  347.966528][ T6631]  __se_sys_mount+0x31d/0x420
[  347.966556][ T6631]  ? __pfx___se_sys_mount+0x10/0x10
[  347.966591][ T6631]  ? __x64_sys_mount+0x20/0xc0
[  347.966619][ T6631]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.966640][ T6631]  do_syscall_64+0x174/0x580
[  347.966663][ T6631]  ? trace_irq_disable+0x3b/0x140
[  347.966685][ T6631]  ? clear_bhb_loop+0x40/0x90
[  347.966709][ T6631]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  347.966728][ T6631] RIP: 0033:0x7f81de08f0ca
[  347.966747][ 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
[  347.966763][ T6631] RSP: 002b:00007ffc97883148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  347.966785][ T6631] RAX: ffffffffffffffda RBX: 00007ffc978831d0 RCX: 00007f81de08f0ca
[  347.966799][ T6631] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffc97883190
[  347.966813][ T6631] RBP: 000020000001f680 R08: 00007ffc978831d0 R09: 0000000000000000
[  347.966826][ T6631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040
[  347.966838][ T6631] R13: 00007ffc97883190 R14: 000000000001f7dd R15: 0000200000000380
[  347.966869][ T6631]  </TASK>
[  347.970329][ 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.
[  347.970350][ T6631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  348.063666][   T39] Kernel panic - not syncing: hung_task: blocked tasks
[  348.063692][   T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  348.063718][   T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[  348.063731][   T39] Call Trace:
[  348.063739][   T39]  <TASK>
[  348.063748][   T39]  vpanic+0x5d9/0xad0
[  348.063774][   T39]  ? __pfx_vpanic+0x10/0x10
[  348.063791][   T39]  ? irqentry_exit+0x218/0x8f0
[  348.063813][   T39]  ? __pfx___schedule+0x10/0x10
[  348.063844][   T39]  panic+0xc5/0xd0
[  348.063860][   T39]  ? __pfx_panic+0x10/0x10
[  348.063876][   T39]  ? preempt_schedule_common+0x82/0xd0
[  348.063899][   T39]  ? preempt_schedule_thunk+0x16/0x40
[  348.063926][   T39]  ? nmi_trigger_cpumask_backtrace+0x314/0x380
[  348.063950][   T39]  ? nmi_trigger_cpumask_backtrace+0x319/0x380
[  348.063974][   T39]  watchdog+0x1030/0x1030
[  348.064007][   T39]  ? watchdog+0x1c7/0x1030
[  348.064037][   T39]  kthread+0x388/0x470
[  348.064059][   T39]  ? __pfx_watchdog+0x10/0x10
[  348.064079][   T39]  ? __pfx_kthread+0x10/0x10
[  348.064099][   T39]  ret_from_fork+0x514/0xb70
[  348.064123][   T39]  ? __pfx_ret_from_fork+0x10/0x10
[  348.064143][   T39]  ? __switch_to+0xc89/0x1420
[  348.064188][   T39]  ? __pfx_kthread+0x10/0x10
[  348.064210][   T39]  ret_from_fork_asm+0x1a/0x30
[  348.064248][   T39]  </TASK>
[  348.064509][   T39] Kernel Offset: disabled