6]  ? __pfx_kobject_init_and_add+0x10/0x10
[  219.067896][ T6656]  ? __raw_spin_lock_init+0x45/0x100
[  219.067917][ T6656]  ? __init_swait_queue_head+0xa9/0x150
[  219.067938][ T6656]  gfs2_sys_fs_add+0x234/0x450
[  219.067968][ T6656]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  219.067999][ T6656]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  219.068028][ T6656]  gfs2_fill_super+0x13c0/0x20d0
[  219.068058][ T6656]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.068093][ T6656]  ? sb_set_blocksize+0x104/0x180
[  219.068119][ T6656]  ? setup_bdev_super+0x4c1/0x5b0
[  219.068143][ T6656]  get_tree_bdev_flags+0x40e/0x4d0
[  219.068166][ T6656]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.068187][ T6656]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  219.068216][ T6656]  gfs2_get_tree+0x51/0x1e0
[  219.068238][ T6656]  vfs_get_tree+0x92/0x2b0
[  219.068262][ T6656]  do_new_mount+0x2a2/0xa30
[  219.068288][ T6656]  ? ns_capable+0x8a/0xf0
[  219.068317][ T6656]  ? __pfx_do_new_mount+0x10/0x10
[  219.068341][ T6656]  ? path_mount+0x61c/0xfe0
[  219.068364][ T6656]  ? user_path_at+0x44/0x60
[  219.068387][ T6656]  __se_sys_mount+0x317/0x410
[  219.068415][ T6656]  ? __pfx___se_sys_mount+0x10/0x10
[  219.068443][ T6656]  ? rcu_is_watching+0x15/0xb0
[  219.068470][ T6656]  ? __x64_sys_mount+0x20/0xc0
[  219.068497][ T6656]  do_syscall_64+0xfa/0xfa0
[  219.068521][ T6656]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.068540][ T6656]  ? clear_bhb_loop+0x60/0xb0
[  219.068562][ T6656]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.068581][ T6656] RIP: 0033:0x7f69ed19038a
[  219.068599][ T6656] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  219.068617][ T6656] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  219.068639][ T6656] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  219.068655][ T6656] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  219.068670][ T6656] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  219.068684][ T6656] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  219.068698][ T6656] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  219.068721][ T6656]  </TASK>
[  219.068746][ T6656] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  219.383042][ T6656] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  219.634051][ T6659] loop1: detected capacity change from 0 to 32768
[  219.642873][ T6659] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  219.650691][ T6659] CPU: 0 UID: 0 PID: 6659 Comm: syz.1.212 Not tainted syzkaller #0 PREEMPT(full) 
[  219.650718][ T6659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  219.650731][ T6659] Call Trace:
[  219.650739][ T6659]  <TASK>
[  219.650747][ T6659]  dump_stack_lvl+0x189/0x250
[  219.650778][ T6659]  ? __pfx_dump_stack_lvl+0x10/0x10
[  219.650803][ T6659]  ? __pfx__printk+0x10/0x10
[  219.650830][ T6659]  ? kernfs_root+0x1c/0x230
[  219.650850][ T6659]  ? kernfs_path_from_node+0x250/0x290
[  219.650868][ T6659]  ? kernfs_path_from_node+0x2f/0x290
[  219.650889][ T6659]  sysfs_create_dir_ns+0x259/0x280
[  219.650920][ T6659]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  219.650952][ T6659]  ? do_raw_spin_unlock+0x122/0x240
[  219.650975][ T6659]  kobject_add_internal+0x59f/0xb40
[  219.651005][ T6659]  kobject_init_and_add+0x125/0x190
[  219.651033][ T6659]  ? __pfx_kobject_init_and_add+0x10/0x10
[  219.651060][ T6659]  ? __raw_spin_lock_init+0x45/0x100
[  219.651082][ T6659]  ? __init_swait_queue_head+0xa9/0x150
[  219.651111][ T6659]  gfs2_sys_fs_add+0x234/0x450
[  219.651141][ T6659]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  219.651174][ T6659]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  219.651204][ T6659]  gfs2_fill_super+0x13c0/0x20d0
[  219.651234][ T6659]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.651259][ T6659]  ? sb_set_blocksize+0x104/0x180
[  219.651286][ T6659]  ? setup_bdev_super+0x4c1/0x5b0
[  219.651312][ T6659]  get_tree_bdev_flags+0x40e/0x4d0
[  219.651336][ T6659]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.651359][ T6659]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  219.651387][ T6659]  gfs2_get_tree+0x51/0x1e0
[  219.651411][ T6659]  vfs_get_tree+0x92/0x2b0
[  219.651435][ T6659]  do_new_mount+0x2a2/0xa30
[  219.651463][ T6659]  ? ns_capable+0x8a/0xf0
[  219.651492][ T6659]  ? __pfx_do_new_mount+0x10/0x10
[  219.651517][ T6659]  ? path_mount+0x61c/0xfe0
[  219.651541][ T6659]  ? user_path_at+0x44/0x60
[  219.651564][ T6659]  __se_sys_mount+0x317/0x410
[  219.651593][ T6659]  ? __pfx___se_sys_mount+0x10/0x10
[  219.651622][ T6659]  ? rcu_is_watching+0x15/0xb0
[  219.651650][ T6659]  ? __x64_sys_mount+0x20/0xc0
[  219.651677][ T6659]  do_syscall_64+0xfa/0xfa0
[  219.651703][ T6659]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.651724][ T6659]  ? clear_bhb_loop+0x60/0xb0
[  219.651747][ T6659]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.651767][ T6659] RIP: 0033:0x7f69ed19038a
[  219.651785][ T6659] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  219.651804][ T6659] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  219.651825][ T6659] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  219.651839][ T6659] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  219.651854][ T6659] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  219.651868][ T6659] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  219.651881][ T6659] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  219.651904][ T6659]  </TASK>
[  219.651923][ T6659] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  219.967468][ T6659] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  220.224541][ T6662] loop1: detected capacity change from 0 to 32768
[  220.254853][ T6662] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  220.262400][ T6662] CPU: 0 UID: 0 PID: 6662 Comm: syz.1.213 Not tainted syzkaller #0 PREEMPT(full) 
[  220.262427][ T6662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  220.262440][ T6662] Call Trace:
[  220.262448][ T6662]  <TASK>
[  220.262456][ T6662]  dump_stack_lvl+0x189/0x250
[  220.262487][ T6662]  ? __pfx_dump_stack_lvl+0x10/0x10
[  220.262510][ T6662]  ? __pfx__printk+0x10/0x10
[  220.262536][ T6662]  ? kernfs_root+0x1c/0x230
[  220.262555][ T6662]  ? kernfs_path_from_node+0x250/0x290
[  220.262573][ T6662]  ? kernfs_path_from_node+0x2f/0x290
[  220.262593][ T6662]  sysfs_create_dir_ns+0x259/0x280
[  220.262623][ T6662]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  220.262653][ T6662]  ? do_raw_spin_unlock+0x122/0x240
[  220.262675][ T6662]  kobject_add_internal+0x59f/0xb40
[  220.262714][ T6662]  kobject_init_and_add+0x125/0x190
[  220.262742][ T6662]  ? __pfx_kobject_init_and_add+0x10/0x10
[  220.262767][ T6662]  ? __raw_spin_lock_init+0x45/0x100
[  220.262788][ T6662]  ? __init_swait_queue_head+0xa9/0x150
[  220.262809][ T6662]  gfs2_sys_fs_add+0x234/0x450
[  220.262838][ T6662]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  220.262887][ T6662]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  220.262917][ T6662]  gfs2_fill_super+0x13c0/0x20d0
[  220.262947][ T6662]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.262972][ T6662]  ? sb_set_blocksize+0x104/0x180
[  220.263000][ T6662]  ? setup_bdev_super+0x4c1/0x5b0
[  220.263026][ T6662]  get_tree_bdev_flags+0x40e/0x4d0
[  220.263050][ T6662]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.263073][ T6662]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  220.263115][ T6662]  gfs2_get_tree+0x51/0x1e0
[  220.263138][ T6662]  vfs_get_tree+0x92/0x2b0
[  220.263161][ T6662]  do_new_mount+0x2a2/0xa30
[  220.263187][ T6662]  ? ns_capable+0x8a/0xf0
[  220.263220][ T6662]  ? __pfx_do_new_mount+0x10/0x10
[  220.263244][ T6662]  ? path_mount+0x61c/0xfe0
[  220.263266][ T6662]  ? user_path_at+0x44/0x60
[  220.263289][ T6662]  __se_sys_mount+0x317/0x410
[  220.263317][ T6662]  ? __pfx___se_sys_mount+0x10/0x10
[  220.263345][ T6662]  ? rcu_is_watching+0x15/0xb0
[  220.263372][ T6662]  ? __x64_sys_mount+0x20/0xc0
[  220.263399][ T6662]  do_syscall_64+0xfa/0xfa0
[  220.263423][ T6662]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.263443][ T6662]  ? clear_bhb_loop+0x60/0xb0
[  220.263465][ T6662]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.263485][ T6662] RIP: 0033:0x7f69ed19038a
[  220.263502][ T6662] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  220.263520][ T6662] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  220.263542][ T6662] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  220.263558][ T6662] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  220.263572][ T6662] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  220.263586][ T6662] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  220.263600][ T6662] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  220.263623][ T6662]  </TASK>
[  220.263642][ T6662] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  220.580176][ T6662] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  220.837287][ T6665] loop1: detected capacity change from 0 to 32768
[  220.848087][ T6665] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  220.855500][ T6665] CPU: 0 UID: 0 PID: 6665 Comm: syz.1.214 Not tainted syzkaller #0 PREEMPT(full) 
[  220.855525][ T6665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  220.855538][ T6665] Call Trace:
[  220.855546][ T6665]  <TASK>
[  220.855554][ T6665]  dump_stack_lvl+0x189/0x250
[  220.855585][ T6665]  ? __pfx_dump_stack_lvl+0x10/0x10
[  220.855609][ T6665]  ? __pfx__printk+0x10/0x10
[  220.855638][ T6665]  ? kernfs_root+0x1c/0x230
[  220.855658][ T6665]  ? kernfs_path_from_node+0x250/0x290
[  220.855676][ T6665]  ? kernfs_path_from_node+0x2f/0x290
[  220.855702][ T6665]  sysfs_create_dir_ns+0x259/0x280
[  220.855734][ T6665]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  220.855765][ T6665]  ? do_raw_spin_unlock+0x122/0x240
[  220.855807][ T6665]  kobject_add_internal+0x59f/0xb40
[  220.855838][ T6665]  kobject_init_and_add+0x125/0x190
[  220.855866][ T6665]  ? __pfx_kobject_init_and_add+0x10/0x10
[  220.855892][ T6665]  ? __raw_spin_lock_init+0x45/0x100
[  220.855913][ T6665]  ? __init_swait_queue_head+0xa9/0x150
[  220.855934][ T6665]  gfs2_sys_fs_add+0x234/0x450
[  220.855965][ T6665]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  220.855998][ T6665]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  220.856027][ T6665]  gfs2_fill_super+0x13c0/0x20d0
[  220.856057][ T6665]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.856082][ T6665]  ? sb_set_blocksize+0x104/0x180
[  220.856110][ T6665]  ? setup_bdev_super+0x4c1/0x5b0
[  220.856136][ T6665]  get_tree_bdev_flags+0x40e/0x4d0
[  220.856160][ T6665]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.856182][ T6665]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  220.856212][ T6665]  gfs2_get_tree+0x51/0x1e0
[  220.856235][ T6665]  vfs_get_tree+0x92/0x2b0
[  220.856259][ T6665]  do_new_mount+0x2a2/0xa30
[  220.856286][ T6665]  ? ns_capable+0x8a/0xf0
[  220.856315][ T6665]  ? __pfx_do_new_mount+0x10/0x10
[  220.856340][ T6665]  ? path_mount+0x61c/0xfe0
[  220.856363][ T6665]  ? user_path_at+0x44/0x60
[  220.856386][ T6665]  __se_sys_mount+0x317/0x410
[  220.856415][ T6665]  ? __pfx___se_sys_mount+0x10/0x10
[  220.856443][ T6665]  ? rcu_is_watching+0x15/0xb0
[  220.856472][ T6665]  ? __x64_sys_mount+0x20/0xc0
[  220.856499][ T6665]  do_syscall_64+0xfa/0xfa0
[  220.856524][ T6665]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.856545][ T6665]  ? clear_bhb_loop+0x60/0xb0
[  220.856568][ T6665]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.856588][ T6665] RIP: 0033:0x7f69ed19038a
[  220.856605][ T6665] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  220.856624][ T6665] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  220.856647][ T6665] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  220.856663][ T6665] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  220.856677][ T6665] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  220.856691][ T6665] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  220.856716][ T6665] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  220.856740][ T6665]  </TASK>
[  221.156803][ T6665] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  221.171271][ T6665] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  221.430947][ T6668] loop1: detected capacity change from 0 to 32768
[  221.447700][ T6668] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  221.455109][ T6668] CPU: 1 UID: 0 PID: 6668 Comm: syz.1.215 Not tainted syzkaller #0 PREEMPT(full) 
[  221.455132][ T6668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  221.455145][ T6668] Call Trace:
[  221.455152][ T6668]  <TASK>
[  221.455160][ T6668]  dump_stack_lvl+0x189/0x250
[  221.455188][ T6668]  ? __pfx_dump_stack_lvl+0x10/0x10
[  221.455211][ T6668]  ? __pfx__printk+0x10/0x10
[  221.455235][ T6668]  ? kernfs_root+0x1c/0x230
[  221.455253][ T6668]  ? kernfs_path_from_node+0x250/0x290
[  221.455269][ T6668]  ? kernfs_path_from_node+0x2f/0x290
[  221.455288][ T6668]  sysfs_create_dir_ns+0x259/0x280
[  221.455315][ T6668]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  221.455344][ T6668]  ? do_raw_spin_unlock+0x122/0x240
[  221.455365][ T6668]  kobject_add_internal+0x59f/0xb40
[  221.455393][ T6668]  kobject_init_and_add+0x125/0x190
[  221.455418][ T6668]  ? __pfx_kobject_init_and_add+0x10/0x10
[  221.455442][ T6668]  ? __raw_spin_lock_init+0x45/0x100
[  221.455461][ T6668]  ? __init_swait_queue_head+0xa9/0x150
[  221.455481][ T6668]  gfs2_sys_fs_add+0x234/0x450
[  221.455508][ T6668]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  221.455538][ T6668]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  221.455565][ T6668]  gfs2_fill_super+0x13c0/0x20d0
[  221.455602][ T6668]  ? __pfx_gfs2_fill_super+0x10/0x10
[  221.455626][ T6668]  ? sb_set_blocksize+0x104/0x180
[  221.455653][ T6668]  ? setup_bdev_super+0x4c1/0x5b0
[  221.455676][ T6668]  get_tree_bdev_flags+0x40e/0x4d0
[  221.455698][ T6668]  ? __pfx_gfs2_fill_super+0x10/0x10
[  221.455718][ T6668]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  221.455745][ T6668]  gfs2_get_tree+0x51/0x1e0
[  221.455767][ T6668]  vfs_get_tree+0x92/0x2b0
[  221.455789][ T6668]  do_new_mount+0x2a2/0xa30
[  221.455814][ T6668]  ? ns_capable+0x8a/0xf0
[  221.455845][ T6668]  ? __pfx_do_new_mount+0x10/0x10
[  221.455867][ T6668]  ? path_mount+0x61c/0xfe0
[  221.455888][ T6668]  ? user_path_at+0x44/0x60
[  221.455909][ T6668]  __se_sys_mount+0x317/0x410
[  221.455935][ T6668]  ? __pfx___se_sys_mount+0x10/0x10
[  221.455961][ T6668]  ? rcu_is_watching+0x15/0xb0
[  221.455987][ T6668]  ? __x64_sys_mount+0x20/0xc0
[  221.456012][ T6668]  do_syscall_64+0xfa/0xfa0
[  221.456035][ T6668]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  221.456053][ T6668]  ? clear_bhb_loop+0x60/0xb0
[  221.456074][ T6668]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  221.456092][ T6668] RIP: 0033:0x7f69ed19038a
[  221.456109][ T6668] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  221.456127][ T6668] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  221.456148][ T6668] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  221.456163][ T6668] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  221.456176][ T6668] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  221.456190][ T6668] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  221.456203][ T6668] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  221.456224][ T6668]  </TASK>
[  221.757790][ T6668] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  221.771992][ T6668] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 18:18:31 executed programs: 201
[  222.028974][ T6671] loop1: detected capacity change from 0 to 32768
[  222.038321][ T6671] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  222.045801][ T6671] CPU: 0 UID: 0 PID: 6671 Comm: syz.1.216 Not tainted syzkaller #0 PREEMPT(full) 
[  222.045824][ T6671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  222.045837][ T6671] Call Trace:
[  222.045844][ T6671]  <TASK>
[  222.045852][ T6671]  dump_stack_lvl+0x189/0x250
[  222.045888][ T6671]  ? __pfx_dump_stack_lvl+0x10/0x10
[  222.045910][ T6671]  ? __pfx__printk+0x10/0x10
[  222.045934][ T6671]  ? kernfs_root+0x1c/0x230
[  222.045953][ T6671]  ? kernfs_path_from_node+0x250/0x290
[  222.045968][ T6671]  ? kernfs_path_from_node+0x2f/0x290
[  222.045987][ T6671]  sysfs_create_dir_ns+0x259/0x280
[  222.046015][ T6671]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  222.046044][ T6671]  ? do_raw_spin_unlock+0x122/0x240
[  222.046065][ T6671]  kobject_add_internal+0x59f/0xb40
[  222.046094][ T6671]  kobject_init_and_add+0x125/0x190
[  222.046120][ T6671]  ? __pfx_kobject_init_and_add+0x10/0x10
[  222.046143][ T6671]  ? __raw_spin_lock_init+0x45/0x100
[  222.046163][ T6671]  ? __init_swait_queue_head+0xa9/0x150
[  222.046183][ T6671]  gfs2_sys_fs_add+0x234/0x450
[  222.046211][ T6671]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.046240][ T6671]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.046267][ T6671]  gfs2_fill_super+0x13c0/0x20d0
[  222.046294][ T6671]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.046316][ T6671]  ? sb_set_blocksize+0x104/0x180
[  222.046341][ T6671]  ? setup_bdev_super+0x4c1/0x5b0
[  222.046365][ T6671]  get_tree_bdev_flags+0x40e/0x4d0
[  222.046387][ T6671]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.046407][ T6671]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.046434][ T6671]  gfs2_get_tree+0x51/0x1e0
[  222.046455][ T6671]  vfs_get_tree+0x92/0x2b0
[  222.046477][ T6671]  do_new_mount+0x2a2/0xa30
[  222.046502][ T6671]  ? ns_capable+0x8a/0xf0
[  222.046528][ T6671]  ? __pfx_do_new_mount+0x10/0x10
[  222.046550][ T6671]  ? path_mount+0x61c/0xfe0
[  222.046572][ T6671]  ? user_path_at+0x44/0x60
[  222.046593][ T6671]  __se_sys_mount+0x317/0x410
[  222.046620][ T6671]  ? __pfx___se_sys_mount+0x10/0x10
[  222.046645][ T6671]  ? rcu_is_watching+0x15/0xb0
[  222.046671][ T6671]  ? __x64_sys_mount+0x20/0xc0
[  222.046696][ T6671]  do_syscall_64+0xfa/0xfa0
[  222.046719][ T6671]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.046738][ T6671]  ? clear_bhb_loop+0x60/0xb0
[  222.046758][ T6671]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.046777][ T6671] RIP: 0033:0x7f69ed19038a
[  222.046793][ T6671] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  222.046810][ T6671] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.046831][ T6671] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  222.046846][ T6671] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  222.046860][ T6671] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  222.046881][ T6671] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.046894][ T6671] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  222.046915][ T6671]  </TASK>
[  222.046935][ T6671] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  222.361032][ T6671] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  222.618140][ T6674] loop1: detected capacity change from 0 to 32768
[  222.634453][ T6674] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  222.641996][ T6674] CPU: 1 UID: 0 PID: 6674 Comm: syz.1.217 Not tainted syzkaller #0 PREEMPT(full) 
[  222.642020][ T6674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  222.642033][ T6674] Call Trace:
[  222.642041][ T6674]  <TASK>
[  222.642049][ T6674]  dump_stack_lvl+0x189/0x250
[  222.642079][ T6674]  ? __pfx_dump_stack_lvl+0x10/0x10
[  222.642104][ T6674]  ? __pfx__printk+0x10/0x10
[  222.642129][ T6674]  ? kernfs_root+0x1c/0x230
[  222.642149][ T6674]  ? kernfs_path_from_node+0x250/0x290
[  222.642166][ T6674]  ? kernfs_path_from_node+0x2f/0x290
[  222.642186][ T6674]  sysfs_create_dir_ns+0x259/0x280
[  222.642216][ T6674]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  222.642246][ T6674]  ? do_raw_spin_unlock+0x122/0x240
[  222.642269][ T6674]  kobject_add_internal+0x59f/0xb40
[  222.642299][ T6674]  kobject_init_and_add+0x125/0x190
[  222.642327][ T6674]  ? __pfx_kobject_init_and_add+0x10/0x10
[  222.642351][ T6674]  ? __raw_spin_lock_init+0x45/0x100
[  222.642372][ T6674]  ? __init_swait_queue_head+0xa9/0x150
[  222.642394][ T6674]  gfs2_sys_fs_add+0x234/0x450
[  222.642423][ T6674]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.642454][ T6674]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.642483][ T6674]  gfs2_fill_super+0x13c0/0x20d0
[  222.642512][ T6674]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.642536][ T6674]  ? sb_set_blocksize+0x104/0x180
[  222.642563][ T6674]  ? setup_bdev_super+0x4c1/0x5b0
[  222.642588][ T6674]  get_tree_bdev_flags+0x40e/0x4d0
[  222.642611][ T6674]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.642633][ T6674]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.642661][ T6674]  gfs2_get_tree+0x51/0x1e0
[  222.642684][ T6674]  vfs_get_tree+0x92/0x2b0
[  222.642708][ T6674]  do_new_mount+0x2a2/0xa30
[  222.642734][ T6674]  ? ns_capable+0x8a/0xf0
[  222.642769][ T6674]  ? __pfx_do_new_mount+0x10/0x10
[  222.642793][ T6674]  ? path_mount+0x61c/0xfe0
[  222.642816][ T6674]  ? user_path_at+0x44/0x60
[  222.642839][ T6674]  __se_sys_mount+0x317/0x410
[  222.642867][ T6674]  ? __pfx___se_sys_mount+0x10/0x10
[  222.642895][ T6674]  ? rcu_is_watching+0x15/0xb0
[  222.642923][ T6674]  ? __x64_sys_mount+0x20/0xc0
[  222.642950][ T6674]  do_syscall_64+0xfa/0xfa0
[  222.642974][ T6674]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.642994][ T6674]  ? clear_bhb_loop+0x60/0xb0
[  222.643016][ T6674]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.643035][ T6674] RIP: 0033:0x7f69ed19038a
[  222.643053][ T6674] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  222.643071][ T6674] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.643093][ T6674] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  222.643109][ T6674] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  222.643124][ T6674] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  222.643138][ T6674] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.643151][ T6674] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  222.643175][ T6674]  </TASK>
[  222.643199][ T6674] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  222.957407][ T6674] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.214564][ T6677] loop1: detected capacity change from 0 to 32768
[  223.231675][ T6677] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.239187][ T6677] CPU: 0 UID: 0 PID: 6677 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT(full) 
[  223.239213][ T6677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.239226][ T6677] Call Trace:
[  223.239234][ T6677]  <TASK>
[  223.239242][ T6677]  dump_stack_lvl+0x189/0x250
[  223.239273][ T6677]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.239299][ T6677]  ? __pfx__printk+0x10/0x10
[  223.239325][ T6677]  ? kernfs_root+0x1c/0x230
[  223.239346][ T6677]  ? kernfs_path_from_node+0x250/0x290
[  223.239364][ T6677]  ? kernfs_path_from_node+0x2f/0x290
[  223.239384][ T6677]  sysfs_create_dir_ns+0x259/0x280
[  223.239415][ T6677]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.239446][ T6677]  ? do_raw_spin_unlock+0x122/0x240
[  223.239469][ T6677]  kobject_add_internal+0x59f/0xb40
[  223.239500][ T6677]  kobject_init_and_add+0x125/0x190
[  223.239528][ T6677]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.239554][ T6677]  ? __raw_spin_lock_init+0x45/0x100
[  223.239576][ T6677]  ? __init_swait_queue_head+0xa9/0x150
[  223.239598][ T6677]  gfs2_sys_fs_add+0x234/0x450
[  223.239627][ T6677]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.239660][ T6677]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.239709][ T6677]  gfs2_fill_super+0x13c0/0x20d0
[  223.239738][ T6677]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.239761][ T6677]  ? sb_set_blocksize+0x104/0x180
[  223.239789][ T6677]  ? setup_bdev_super+0x4c1/0x5b0
[  223.239815][ T6677]  get_tree_bdev_flags+0x40e/0x4d0
[  223.239838][ T6677]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.239860][ T6677]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.239888][ T6677]  gfs2_get_tree+0x51/0x1e0
[  223.239911][ T6677]  vfs_get_tree+0x92/0x2b0
[  223.239934][ T6677]  do_new_mount+0x2a2/0xa30
[  223.239960][ T6677]  ? ns_capable+0x8a/0xf0
[  223.239988][ T6677]  ? __pfx_do_new_mount+0x10/0x10
[  223.240012][ T6677]  ? path_mount+0x61c/0xfe0
[  223.240035][ T6677]  ? user_path_at+0x44/0x60
[  223.240057][ T6677]  __se_sys_mount+0x317/0x410
[  223.240085][ T6677]  ? __pfx___se_sys_mount+0x10/0x10
[  223.240112][ T6677]  ? rcu_is_watching+0x15/0xb0
[  223.240139][ T6677]  ? __x64_sys_mount+0x20/0xc0
[  223.240164][ T6677]  do_syscall_64+0xfa/0xfa0
[  223.240189][ T6677]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.240208][ T6677]  ? clear_bhb_loop+0x60/0xb0
[  223.240231][ T6677]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.240251][ T6677] RIP: 0033:0x7f69ed19038a
[  223.240268][ T6677] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  223.240287][ T6677] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.240308][ T6677] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  223.240324][ T6677] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  223.240338][ T6677] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  223.240353][ T6677] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.240385][ T6677] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  223.240410][ T6677]  </TASK>
[  223.240496][ T6677] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  223.556090][ T6677] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.818494][ T6680] loop1: detected capacity change from 0 to 32768
[  223.843631][ T6680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.851175][ T6680] CPU: 0 UID: 0 PID: 6680 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT(full) 
[  223.851198][ T6680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.851210][ T6680] Call Trace:
[  223.851217][ T6680]  <TASK>
[  223.851226][ T6680]  dump_stack_lvl+0x189/0x250
[  223.851255][ T6680]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.851276][ T6680]  ? __pfx__printk+0x10/0x10
[  223.851298][ T6680]  ? kernfs_root+0x1c/0x230
[  223.851317][ T6680]  ? kernfs_path_from_node+0x250/0x290
[  223.851332][ T6680]  ? kernfs_path_from_node+0x2f/0x290
[  223.851350][ T6680]  sysfs_create_dir_ns+0x259/0x280
[  223.851378][ T6680]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.851415][ T6680]  ? do_raw_spin_unlock+0x122/0x240
[  223.851436][ T6680]  kobject_add_internal+0x59f/0xb40
[  223.851464][ T6680]  kobject_init_and_add+0x125/0x190
[  223.851490][ T6680]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.851512][ T6680]  ? __raw_spin_lock_init+0x45/0x100
[  223.851531][ T6680]  ? __init_swait_queue_head+0xa9/0x150
[  223.851552][ T6680]  gfs2_sys_fs_add+0x234/0x450
[  223.851572][ T6680]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.851593][ T6680]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.851613][ T6680]  gfs2_fill_super+0x13c0/0x20d0
[  223.851632][ T6680]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.851648][ T6680]  ? sb_set_blocksize+0x104/0x180
[  223.851666][ T6680]  ? setup_bdev_super+0x4c1/0x5b0
[  223.851682][ T6680]  get_tree_bdev_flags+0x40e/0x4d0
[  223.851697][ T6680]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.851712][ T6680]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.851730][ T6680]  gfs2_get_tree+0x51/0x1e0
[  223.851745][ T6680]  vfs_get_tree+0x92/0x2b0
[  223.851760][ T6680]  do_new_mount+0x2a2/0xa30
[  223.851778][ T6680]  ? ns_capable+0x8a/0xf0
[  223.851796][ T6680]  ? __pfx_do_new_mount+0x10/0x10
[  223.851812][ T6680]  ? path_mount+0x61c/0xfe0
[  223.851827][ T6680]  ? user_path_at+0x44/0x60
[  223.851842][ T6680]  __se_sys_mount+0x317/0x410
[  223.851861][ T6680]  ? __pfx___se_sys_mount+0x10/0x10
[  223.851879][ T6680]  ? rcu_is_watching+0x15/0xb0
[  223.851897][ T6680]  ? __x64_sys_mount+0x20/0xc0
[  223.851914][ T6680]  do_syscall_64+0xfa/0xfa0
[  223.851930][ T6680]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.851943][ T6680]  ? clear_bhb_loop+0x60/0xb0
[  223.851958][ T6680]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.851970][ T6680] RIP: 0033:0x7f69ed19038a
[  223.851982][ T6680] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  223.851994][ T6680] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.852009][ T6680] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  223.852019][ T6680] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  223.852028][ T6680] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  223.852037][ T6680] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.852046][ T6680] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  223.852061][ T6680]  </TASK>
[  223.852074][ T6680] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  224.168264][ T6680] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  224.440025][ T6683] loop1: detected capacity change from 0 to 32768
[  224.462294][ T6683] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  224.470109][ T6683] CPU: 1 UID: 0 PID: 6683 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT(full) 
[  224.470134][ T6683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  224.470147][ T6683] Call Trace:
[  224.470155][ T6683]  <TASK>
[  224.470164][ T6683]  dump_stack_lvl+0x189/0x250
[  224.470195][ T6683]  ? __pfx_dump_stack_lvl+0x10/0x10
[  224.470231][ T6683]  ? __pfx__printk+0x10/0x10
[  224.470257][ T6683]  ? kernfs_root+0x1c/0x230
[  224.470277][ T6683]  ? kernfs_path_from_node+0x250/0x290
[  224.470313][ T6683]  ? kernfs_path_from_node+0x2f/0x290
[  224.470333][ T6683]  sysfs_create_dir_ns+0x259/0x280
[  224.470391][ T6683]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  224.470421][ T6683]  ? do_raw_spin_unlock+0x122/0x240
[  224.470444][ T6683]  kobject_add_internal+0x59f/0xb40
[  224.470474][ T6683]  kobject_init_and_add+0x125/0x190
[  224.470501][ T6683]  ? __pfx_kobject_init_and_add+0x10/0x10
[  224.470526][ T6683]  ? __raw_spin_lock_init+0x45/0x100
[  224.470547][ T6683]  ? __init_swait_queue_head+0xa9/0x150
[  224.470568][ T6683]  gfs2_sys_fs_add+0x234/0x450
[  224.470597][ T6683]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  224.470627][ T6683]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  224.470656][ T6683]  gfs2_fill_super+0x13c0/0x20d0
[  224.470685][ T6683]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.470708][ T6683]  ? sb_set_blocksize+0x104/0x180
[  224.470737][ T6683]  ? setup_bdev_super+0x4c1/0x5b0
[  224.470761][ T6683]  get_tree_bdev_flags+0x40e/0x4d0
[  224.470784][ T6683]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.470806][ T6683]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  224.470835][ T6683]  gfs2_get_tree+0x51/0x1e0
[  224.470857][ T6683]  vfs_get_tree+0x92/0x2b0
[  224.470881][ T6683]  do_new_mount+0x2a2/0xa30
[  224.470907][ T6683]  ? ns_capable+0x8a/0xf0
[  224.470935][ T6683]  ? __pfx_do_new_mount+0x10/0x10
[  224.470959][ T6683]  ? path_mount+0x61c/0xfe0
[  224.470982][ T6683]  ? user_path_at+0x44/0x60
[  224.471004][ T6683]  __se_sys_mount+0x317/0x410
[  224.471033][ T6683]  ? __pfx___se_sys_mount+0x10/0x10
[  224.471061][ T6683]  ? rcu_is_watching+0x15/0xb0
[  224.471088][ T6683]  ? __x64_sys_mount+0x20/0xc0
[  224.471114][ T6683]  do_syscall_64+0xfa/0xfa0
[  224.471138][ T6683]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.471159][ T6683]  ? clear_bhb_loop+0x60/0xb0
[  224.471181][ T6683]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.471200][ T6683] RIP: 0033:0x7f69ed19038a
[  224.471218][ T6683] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  224.471236][ T6683] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  224.471259][ T6683] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  224.471274][ T6683] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  224.471289][ T6683] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  224.471303][ T6683] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  224.471316][ T6683] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  224.471339][ T6683]  </TASK>
[  224.471379][ T6683] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  224.785603][ T6683] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  225.042644][ T6686] loop1: detected capacity change from 0 to 32768
[  225.054927][ T6686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.062461][ T6686] CPU: 1 UID: 0 PID: 6686 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT(full) 
[  225.062488][ T6686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.062502][ T6686] Call Trace:
[  225.062510][ T6686]  <TASK>
[  225.062518][ T6686]  dump_stack_lvl+0x189/0x250
[  225.062550][ T6686]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.062576][ T6686]  ? __pfx__printk+0x10/0x10
[  225.062603][ T6686]  ? kernfs_root+0x1c/0x230
[  225.062624][ T6686]  ? kernfs_path_from_node+0x250/0x290
[  225.062642][ T6686]  ? kernfs_path_from_node+0x2f/0x290
[  225.062662][ T6686]  sysfs_create_dir_ns+0x259/0x280
[  225.062694][ T6686]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.062726][ T6686]  ? do_raw_spin_unlock+0x122/0x240
[  225.062749][ T6686]  kobject_add_internal+0x59f/0xb40
[  225.062790][ T6686]  kobject_init_and_add+0x125/0x190
[  225.062819][ T6686]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.062845][ T6686]  ? __raw_spin_lock_init+0x45/0x100
[  225.062867][ T6686]  ? __init_swait_queue_head+0xa9/0x150
[  225.062890][ T6686]  gfs2_sys_fs_add+0x234/0x450
[  225.062921][ T6686]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.062954][ T6686]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.062984][ T6686]  gfs2_fill_super+0x13c0/0x20d0
[  225.063014][ T6686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.063038][ T6686]  ? sb_set_blocksize+0x104/0x180
[  225.063065][ T6686]  ? setup_bdev_super+0x4c1/0x5b0
[  225.063091][ T6686]  get_tree_bdev_flags+0x40e/0x4d0
[  225.063115][ T6686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.063138][ T6686]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.063168][ T6686]  gfs2_get_tree+0x51/0x1e0
[  225.063192][ T6686]  vfs_get_tree+0x92/0x2b0
[  225.063216][ T6686]  do_new_mount+0x2a2/0xa30
[  225.063244][ T6686]  ? ns_capable+0x8a/0xf0
[  225.063273][ T6686]  ? __pfx_do_new_mount+0x10/0x10
[  225.063298][ T6686]  ? path_mount+0x61c/0xfe0
[  225.063331][ T6686]  ? user_path_at+0x44/0x60
[  225.063354][ T6686]  __se_sys_mount+0x317/0x410
[  225.063384][ T6686]  ? __pfx___se_sys_mount+0x10/0x10
[  225.063412][ T6686]  ? rcu_is_watching+0x15/0xb0
[  225.063442][ T6686]  ? __x64_sys_mount+0x20/0xc0
[  225.063470][ T6686]  do_syscall_64+0xfa/0xfa0
[  225.063495][ T6686]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.063516][ T6686]  ? clear_bhb_loop+0x60/0xb0
[  225.063539][ T6686]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.063560][ T6686] RIP: 0033:0x7f69ed19038a
[  225.063579][ T6686] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  225.063599][ T6686] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.063622][ T6686] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  225.063638][ T6686] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  225.063654][ T6686] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  225.063669][ T6686] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.063683][ T6686] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  225.063708][ T6686]  </TASK>
[  225.063728][ T6686] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  225.378022][ T6686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  225.638300][ T6689] loop1: detected capacity change from 0 to 32768
[  225.659207][ T6689] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.672888][ T6689] CPU: 1 UID: 0 PID: 6689 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT(full) 
[  225.672915][ T6689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.672929][ T6689] Call Trace:
[  225.672936][ T6689]  <TASK>
[  225.672945][ T6689]  dump_stack_lvl+0x189/0x250
[  225.672974][ T6689]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.672999][ T6689]  ? __pfx__printk+0x10/0x10
[  225.673024][ T6689]  ? kernfs_root+0x1c/0x230
[  225.673044][ T6689]  ? kernfs_path_from_node+0x250/0x290
[  225.673062][ T6689]  ? kernfs_path_from_node+0x2f/0x290
[  225.673081][ T6689]  sysfs_create_dir_ns+0x259/0x280
[  225.673111][ T6689]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.673142][ T6689]  ? do_raw_spin_unlock+0x122/0x240
[  225.673165][ T6689]  kobject_add_internal+0x59f/0xb40
[  225.673194][ T6689]  kobject_init_and_add+0x125/0x190
[  225.673231][ T6689]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.673275][ T6689]  ? __raw_spin_lock_init+0x45/0x100
[  225.673296][ T6689]  ? __init_swait_queue_head+0xa9/0x150
[  225.673318][ T6689]  gfs2_sys_fs_add+0x234/0x450
[  225.673348][ T6689]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.673382][ T6689]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.673412][ T6689]  gfs2_fill_super+0x13c0/0x20d0
[  225.673442][ T6689]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.673466][ T6689]  ? sb_set_blocksize+0x104/0x180
[  225.673495][ T6689]  ? setup_bdev_super+0x4c1/0x5b0
[  225.673521][ T6689]  get_tree_bdev_flags+0x40e/0x4d0
[  225.673545][ T6689]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.673568][ T6689]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.673598][ T6689]  gfs2_get_tree+0x51/0x1e0
[  225.673621][ T6689]  vfs_get_tree+0x92/0x2b0
[  225.673645][ T6689]  do_new_mount+0x2a2/0xa30
[  225.673673][ T6689]  ? ns_capable+0x8a/0xf0
[  225.673701][ T6689]  ? __pfx_do_new_mount+0x10/0x10
[  225.673726][ T6689]  ? path_mount+0x61c/0xfe0
[  225.673750][ T6689]  ? user_path_at+0x44/0x60
[  225.673774][ T6689]  __se_sys_mount+0x317/0x410
[  225.673803][ T6689]  ? __pfx___se_sys_mount+0x10/0x10
[  225.673831][ T6689]  ? rcu_is_watching+0x15/0xb0
[  225.673860][ T6689]  ? __x64_sys_mount+0x20/0xc0
[  225.673887][ T6689]  do_syscall_64+0xfa/0xfa0
[  225.673912][ T6689]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.673932][ T6689]  ? clear_bhb_loop+0x60/0xb0
[  225.673955][ T6689]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.673975][ T6689] RIP: 0033:0x7f69ed19038a
[  225.673993][ T6689] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  225.674012][ T6689] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.674034][ T6689] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  225.674050][ T6689] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  225.674065][ T6689] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  225.674080][ T6689] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.674094][ T6689] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  225.674130][ T6689]  </TASK>
[  225.674149][ T6689] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  225.987638][ T6689] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  226.254514][ T6692] loop1: detected capacity change from 0 to 32768
[  226.266379][ T6692] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  226.273809][ T6692] CPU: 1 UID: 0 PID: 6692 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT(full) 
[  226.273835][ T6692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  226.273849][ T6692] Call Trace:
[  226.273858][ T6692]  <TASK>
[  226.273866][ T6692]  dump_stack_lvl+0x189/0x250
[  226.273897][ T6692]  ? __pfx_dump_stack_lvl+0x10/0x10
[  226.273922][ T6692]  ? __pfx__printk+0x10/0x10
[  226.273948][ T6692]  ? kernfs_root+0x1c/0x230
[  226.273969][ T6692]  ? kernfs_path_from_node+0x250/0x290
[  226.273987][ T6692]  ? kernfs_path_from_node+0x2f/0x290
[  226.274007][ T6692]  sysfs_create_dir_ns+0x259/0x280
[  226.274038][ T6692]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  226.274070][ T6692]  ? do_raw_spin_unlock+0x122/0x240
[  226.274094][ T6692]  kobject_add_internal+0x59f/0xb40
[  226.274125][ T6692]  kobject_init_and_add+0x125/0x190
[  226.274154][ T6692]  ? __pfx_kobject_init_and_add+0x10/0x10
[  226.274196][ T6692]  ? __raw_spin_lock_init+0x45/0x100
[  226.274218][ T6692]  ? __init_swait_queue_head+0xa9/0x150
[  226.274240][ T6692]  gfs2_sys_fs_add+0x234/0x450
[  226.274270][ T6692]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  226.274303][ T6692]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  226.274332][ T6692]  gfs2_fill_super+0x13c0/0x20d0
[  226.274362][ T6692]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.274387][ T6692]  ? sb_set_blocksize+0x104/0x180
[  226.274416][ T6692]  ? setup_bdev_super+0x4c1/0x5b0
[  226.274441][ T6692]  get_tree_bdev_flags+0x40e/0x4d0
[  226.274466][ T6692]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.274489][ T6692]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  226.274519][ T6692]  gfs2_get_tree+0x51/0x1e0
[  226.274543][ T6692]  vfs_get_tree+0x92/0x2b0
[  226.274566][ T6692]  do_new_mount+0x2a2/0xa30
[  226.274594][ T6692]  ? ns_capable+0x8a/0xf0
[  226.274622][ T6692]  ? __pfx_do_new_mount+0x10/0x10
[  226.274647][ T6692]  ? path_mount+0x61c/0xfe0
[  226.274671][ T6692]  ? user_path_at+0x44/0x60
[  226.274694][ T6692]  __se_sys_mount+0x317/0x410
[  226.274723][ T6692]  ? __pfx___se_sys_mount+0x10/0x10
[  226.274767][ T6692]  ? rcu_is_watching+0x15/0xb0
[  226.274795][ T6692]  ? __x64_sys_mount+0x20/0xc0
[  226.274822][ T6692]  do_syscall_64+0xfa/0xfa0
[  226.274846][ T6692]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.274865][ T6692]  ? clear_bhb_loop+0x60/0xb0
[  226.274888][ T6692]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.274908][ T6692] RIP: 0033:0x7f69ed19038a
[  226.274926][ T6692] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  226.274944][ T6692] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  226.274967][ T6692] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  226.274983][ T6692] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  226.274997][ T6692] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  226.275011][ T6692] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  226.275025][ T6692] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  226.275048][ T6692]  </TASK>
[  226.275068][ T6692] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  226.588687][ T6692] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  226.854530][ T6695] loop1: detected capacity change from 0 to 32768
[  226.866716][ T6695] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  226.874179][ T6695] CPU: 0 UID: 0 PID: 6695 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT(full) 
[  226.874203][ T6695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  226.874216][ T6695] Call Trace:
[  226.874223][ T6695]  <TASK>
[  226.874231][ T6695]  dump_stack_lvl+0x189/0x250
[  226.874261][ T6695]  ? __pfx_dump_stack_lvl+0x10/0x10
[  226.874283][ T6695]  ? __pfx__printk+0x10/0x10
[  226.874307][ T6695]  ? kernfs_root+0x1c/0x230
[  226.874326][ T6695]  ? kernfs_path_from_node+0x250/0x290
[  226.874342][ T6695]  ? kernfs_path_from_node+0x2f/0x290
[  226.874369][ T6695]  sysfs_create_dir_ns+0x259/0x280
[  226.874397][ T6695]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  226.874426][ T6695]  ? do_raw_spin_unlock+0x122/0x240
[  226.874447][ T6695]  kobject_add_internal+0x59f/0xb40
[  226.874475][ T6695]  kobject_init_and_add+0x125/0x190
[  226.874501][ T6695]  ? __pfx_kobject_init_and_add+0x10/0x10
[  226.874524][ T6695]  ? __raw_spin_lock_init+0x45/0x100
[  226.874543][ T6695]  ? __init_swait_queue_head+0xa9/0x150
[  226.874563][ T6695]  gfs2_sys_fs_add+0x234/0x450
[  226.874591][ T6695]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  226.874620][ T6695]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  226.874648][ T6695]  gfs2_fill_super+0x13c0/0x20d0
[  226.874691][ T6695]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.874714][ T6695]  ? sb_set_blocksize+0x104/0x180
[  226.874741][ T6695]  ? setup_bdev_super+0x4c1/0x5b0
[  226.874766][ T6695]  get_tree_bdev_flags+0x40e/0x4d0
[  226.874789][ T6695]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.874812][ T6695]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  226.874840][ T6695]  gfs2_get_tree+0x51/0x1e0
[  226.874863][ T6695]  vfs_get_tree+0x92/0x2b0
[  226.874886][ T6695]  do_new_mount+0x2a2/0xa30
[  226.874914][ T6695]  ? ns_capable+0x8a/0xf0
[  226.874941][ T6695]  ? __pfx_do_new_mount+0x10/0x10
[  226.874965][ T6695]  ? path_mount+0x61c/0xfe0
[  226.874988][ T6695]  ? user_path_at+0x44/0x60
[  226.875010][ T6695]  __se_sys_mount+0x317/0x410
[  226.875039][ T6695]  ? __pfx___se_sys_mount+0x10/0x10
[  226.875066][ T6695]  ? rcu_is_watching+0x15/0xb0
[  226.875093][ T6695]  ? __x64_sys_mount+0x20/0xc0
[  226.875120][ T6695]  do_syscall_64+0xfa/0xfa0
[  226.875143][ T6695]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.875163][ T6695]  ? clear_bhb_loop+0x60/0xb0
[  226.875185][ T6695]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.875204][ T6695] RIP: 0033:0x7f69ed19038a
[  226.875222][ T6695] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  226.875240][ T6695] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  226.875263][ T6695] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  226.875279][ T6695] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  226.875293][ T6695] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  226.875307][ T6695] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  226.875321][ T6695] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  226.875344][ T6695]  </TASK>
[  226.875378][ T6695] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  227.036313][ T5944] Bluetooth: hci1: command 0x0406 tx timeout
[  227.196479][ T6695] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 18:18:36 executed programs: 210
[  227.463918][ T6698] loop1: detected capacity change from 0 to 32768
[  227.474440][ T6698] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  227.481906][ T6698] CPU: 0 UID: 0 PID: 6698 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT(full) 
[  227.481933][ T6698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  227.481946][ T6698] Call Trace:
[  227.481954][ T6698]  <TASK>
[  227.481963][ T6698]  dump_stack_lvl+0x189/0x250
[  227.481994][ T6698]  ? __pfx_dump_stack_lvl+0x10/0x10
[  227.482019][ T6698]  ? __pfx__printk+0x10/0x10
[  227.482046][ T6698]  ? kernfs_root+0x1c/0x230
[  227.482066][ T6698]  ? kernfs_path_from_node+0x250/0x290
[  227.482084][ T6698]  ? kernfs_path_from_node+0x2f/0x290
[  227.482104][ T6698]  sysfs_create_dir_ns+0x259/0x280
[  227.482136][ T6698]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  227.482166][ T6698]  ? do_raw_spin_unlock+0x122/0x240
[  227.482190][ T6698]  kobject_add_internal+0x59f/0xb40
[  227.482222][ T6698]  kobject_init_and_add+0x125/0x190
[  227.482249][ T6698]  ? __pfx_kobject_init_and_add+0x10/0x10
[  227.482276][ T6698]  ? __raw_spin_lock_init+0x45/0x100
[  227.482297][ T6698]  ? __init_swait_queue_head+0xa9/0x150
[  227.482328][ T6698]  gfs2_sys_fs_add+0x234/0x450
[  227.482359][ T6698]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.482392][ T6698]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.482421][ T6698]  gfs2_fill_super+0x13c0/0x20d0
[  227.482451][ T6698]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.482475][ T6698]  ? sb_set_blocksize+0x104/0x180
[  227.482504][ T6698]  ? setup_bdev_super+0x4c1/0x5b0
[  227.482530][ T6698]  get_tree_bdev_flags+0x40e/0x4d0
[  227.482554][ T6698]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.482576][ T6698]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.482605][ T6698]  gfs2_get_tree+0x51/0x1e0
[  227.482629][ T6698]  vfs_get_tree+0x92/0x2b0
[  227.482654][ T6698]  do_new_mount+0x2a2/0xa30
[  227.482681][ T6698]  ? ns_capable+0x8a/0xf0
[  227.482710][ T6698]  ? __pfx_do_new_mount+0x10/0x10
[  227.482735][ T6698]  ? path_mount+0x61c/0xfe0
[  227.482759][ T6698]  ? user_path_at+0x44/0x60
[  227.482782][ T6698]  __se_sys_mount+0x317/0x410
[  227.482811][ T6698]  ? __pfx___se_sys_mount+0x10/0x10
[  227.482840][ T6698]  ? rcu_is_watching+0x15/0xb0
[  227.482868][ T6698]  ? __x64_sys_mount+0x20/0xc0
[  227.482896][ T6698]  do_syscall_64+0xfa/0xfa0
[  227.482921][ T6698]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.482942][ T6698]  ? clear_bhb_loop+0x60/0xb0
[  227.482965][ T6698]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.482985][ T6698] RIP: 0033:0x7f69ed19038a
[  227.483004][ T6698] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  227.483023][ T6698] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.483047][ T6698] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  227.483063][ T6698] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  227.483079][ T6698] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  227.483093][ T6698] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  227.483107][ T6698] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  227.483131][ T6698]  </TASK>
[  227.483157][ T6698] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  227.798182][ T6698] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.058587][ T6701] loop1: detected capacity change from 0 to 32768
[  228.070324][ T6701] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.086004][ T6701] CPU: 0 UID: 0 PID: 6701 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT(full) 
[  228.086027][ T6701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.086057][ T6701] Call Trace:
[  228.086065][ T6701]  <TASK>
[  228.086073][ T6701]  dump_stack_lvl+0x189/0x250
[  228.086103][ T6701]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.086124][ T6701]  ? __pfx__printk+0x10/0x10
[  228.086145][ T6701]  ? kernfs_root+0x1c/0x230
[  228.086162][ T6701]  ? kernfs_path_from_node+0x250/0x290
[  228.086175][ T6701]  ? kernfs_path_from_node+0x2f/0x290
[  228.086190][ T6701]  sysfs_create_dir_ns+0x259/0x280
[  228.086216][ T6701]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.086239][ T6701]  ? do_raw_spin_unlock+0x122/0x240
[  228.086257][ T6701]  kobject_add_internal+0x59f/0xb40
[  228.086291][ T6701]  kobject_init_and_add+0x125/0x190
[  228.086313][ T6701]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.086340][ T6701]  ? __raw_spin_lock_init+0x45/0x100
[  228.086357][ T6701]  ? __init_swait_queue_head+0xa9/0x150
[  228.086374][ T6701]  gfs2_sys_fs_add+0x234/0x450
[  228.086398][ T6701]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.086423][ T6701]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.086446][ T6701]  gfs2_fill_super+0x13c0/0x20d0
[  228.086469][ T6701]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.086489][ T6701]  ? sb_set_blocksize+0x104/0x180
[  228.086511][ T6701]  ? setup_bdev_super+0x4c1/0x5b0
[  228.086531][ T6701]  get_tree_bdev_flags+0x40e/0x4d0
[  228.086550][ T6701]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.086567][ T6701]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.086590][ T6701]  gfs2_get_tree+0x51/0x1e0
[  228.086608][ T6701]  vfs_get_tree+0x92/0x2b0
[  228.086627][ T6701]  do_new_mount+0x2a2/0xa30
[  228.086648][ T6701]  ? ns_capable+0x8a/0xf0
[  228.086671][ T6701]  ? __pfx_do_new_mount+0x10/0x10
[  228.086690][ T6701]  ? path_mount+0x61c/0xfe0
[  228.086708][ T6701]  ? user_path_at+0x44/0x60
[  228.086726][ T6701]  __se_sys_mount+0x317/0x410
[  228.086749][ T6701]  ? __pfx___se_sys_mount+0x10/0x10
[  228.086771][ T6701]  ? rcu_is_watching+0x15/0xb0
[  228.086794][ T6701]  ? __x64_sys_mount+0x20/0xc0
[  228.086815][ T6701]  do_syscall_64+0xfa/0xfa0
[  228.086834][ T6701]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.086850][ T6701]  ? clear_bhb_loop+0x60/0xb0
[  228.086868][ T6701]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.086883][ T6701] RIP: 0033:0x7f69ed19038a
[  228.086897][ T6701] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  228.086911][ T6701] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.086929][ T6701] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  228.086941][ T6701] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  228.086953][ T6701] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  228.086965][ T6701] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  228.086976][ T6701] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  228.086994][ T6701]  </TASK>
[  228.087015][ T6701] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  228.403941][ T6701] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.718567][ T6704] loop1: detected capacity change from 0 to 32768
[  228.733843][ T6704] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.741413][ T6704] CPU: 0 UID: 0 PID: 6704 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT(full) 
[  228.741440][ T6704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.741453][ T6704] Call Trace:
[  228.741461][ T6704]  <TASK>
[  228.741470][ T6704]  dump_stack_lvl+0x189/0x250
[  228.741501][ T6704]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.741526][ T6704]  ? __pfx__printk+0x10/0x10
[  228.741554][ T6704]  ? kernfs_root+0x1c/0x230
[  228.741574][ T6704]  ? kernfs_path_from_node+0x250/0x290
[  228.741592][ T6704]  ? kernfs_path_from_node+0x2f/0x290
[  228.741612][ T6704]  sysfs_create_dir_ns+0x259/0x280
[  228.741644][ T6704]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.741675][ T6704]  ? do_raw_spin_unlock+0x122/0x240
[  228.741698][ T6704]  kobject_add_internal+0x59f/0xb40
[  228.741729][ T6704]  kobject_init_and_add+0x125/0x190
[  228.741757][ T6704]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.741784][ T6704]  ? __raw_spin_lock_init+0x45/0x100
[  228.741806][ T6704]  ? __init_swait_queue_head+0xa9/0x150
[  228.741827][ T6704]  gfs2_sys_fs_add+0x234/0x450
[  228.741858][ T6704]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.741891][ T6704]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.741921][ T6704]  gfs2_fill_super+0x13c0/0x20d0
[  228.741961][ T6704]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.741987][ T6704]  ? sb_set_blocksize+0x104/0x180
[  228.742015][ T6704]  ? setup_bdev_super+0x4c1/0x5b0
[  228.742041][ T6704]  get_tree_bdev_flags+0x40e/0x4d0
[  228.742066][ T6704]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.742088][ T6704]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.742117][ T6704]  gfs2_get_tree+0x51/0x1e0
[  228.742141][ T6704]  vfs_get_tree+0x92/0x2b0
[  228.742166][ T6704]  do_new_mount+0x2a2/0xa30
[  228.742194][ T6704]  ? ns_capable+0x8a/0xf0
[  228.742222][ T6704]  ? __pfx_do_new_mount+0x10/0x10
[  228.742248][ T6704]  ? path_mount+0x61c/0xfe0
[  228.742272][ T6704]  ? user_path_at+0x44/0x60
[  228.742295][ T6704]  __se_sys_mount+0x317/0x410
[  228.742324][ T6704]  ? __pfx___se_sys_mount+0x10/0x10
[  228.742353][ T6704]  ? rcu_is_watching+0x15/0xb0
[  228.742381][ T6704]  ? __x64_sys_mount+0x20/0xc0
[  228.742408][ T6704]  do_syscall_64+0xfa/0xfa0
[  228.742434][ T6704]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.742454][ T6704]  ? clear_bhb_loop+0x60/0xb0
[  228.742477][ T6704]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.742498][ T6704] RIP: 0033:0x7f69ed19038a
[  228.742516][ T6704] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  228.742535][ T6704] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.742557][ T6704] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  228.742574][ T6704] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  228.742589][ T6704] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  228.742604][ T6704] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  228.742618][ T6704] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  228.742642][ T6704]  </TASK>
[  228.742668][ T6704] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.058756][ T6704] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.319897][ T6707] loop1: detected capacity change from 0 to 32768
[  229.334148][ T6707] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.341655][ T6707] CPU: 1 UID: 0 PID: 6707 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT(full) 
[  229.341680][ T6707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.341692][ T6707] Call Trace:
[  229.341700][ T6707]  <TASK>
[  229.341708][ T6707]  dump_stack_lvl+0x189/0x250
[  229.341738][ T6707]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.341762][ T6707]  ? __pfx__printk+0x10/0x10
[  229.341788][ T6707]  ? kernfs_root+0x1c/0x230
[  229.341808][ T6707]  ? kernfs_path_from_node+0x250/0x290
[  229.341826][ T6707]  ? kernfs_path_from_node+0x2f/0x290
[  229.341846][ T6707]  sysfs_create_dir_ns+0x259/0x280
[  229.341877][ T6707]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.341937][ T6707]  ? do_raw_spin_unlock+0x122/0x240
[  229.341960][ T6707]  kobject_add_internal+0x59f/0xb40
[  229.341991][ T6707]  kobject_init_and_add+0x125/0x190
[  229.342018][ T6707]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.342043][ T6707]  ? __raw_spin_lock_init+0x45/0x100
[  229.342064][ T6707]  ? __init_swait_queue_head+0xa9/0x150
[  229.342086][ T6707]  gfs2_sys_fs_add+0x234/0x450
[  229.342115][ T6707]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.342145][ T6707]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.342174][ T6707]  gfs2_fill_super+0x13c0/0x20d0
[  229.342203][ T6707]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.342228][ T6707]  ? sb_set_blocksize+0x104/0x180
[  229.342255][ T6707]  ? setup_bdev_super+0x4c1/0x5b0
[  229.342280][ T6707]  get_tree_bdev_flags+0x40e/0x4d0
[  229.342303][ T6707]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.342343][ T6707]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.342387][ T6707]  gfs2_get_tree+0x51/0x1e0
[  229.342409][ T6707]  vfs_get_tree+0x92/0x2b0
[  229.342433][ T6707]  do_new_mount+0x2a2/0xa30
[  229.342460][ T6707]  ? ns_capable+0x8a/0xf0
[  229.342487][ T6707]  ? __pfx_do_new_mount+0x10/0x10
[  229.342510][ T6707]  ? path_mount+0x61c/0xfe0
[  229.342532][ T6707]  ? user_path_at+0x44/0x60
[  229.342553][ T6707]  __se_sys_mount+0x317/0x410
[  229.342580][ T6707]  ? __pfx___se_sys_mount+0x10/0x10
[  229.342608][ T6707]  ? rcu_is_watching+0x15/0xb0
[  229.342634][ T6707]  ? __x64_sys_mount+0x20/0xc0
[  229.342660][ T6707]  do_syscall_64+0xfa/0xfa0
[  229.342685][ T6707]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.342706][ T6707]  ? clear_bhb_loop+0x60/0xb0
[  229.342728][ T6707]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.342748][ T6707] RIP: 0033:0x7f69ed19038a
[  229.342765][ T6707] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  229.342784][ T6707] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.342825][ T6707] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  229.342841][ T6707] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  229.342856][ T6707] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  229.342871][ T6707] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.342886][ T6707] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  229.342921][ T6707]  </TASK>
[  229.342941][ T6707] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.657507][ T6707] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.909657][ T6710] loop1: detected capacity change from 0 to 32768
[  229.930563][ T6710] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.938272][ T6710] CPU: 1 UID: 0 PID: 6710 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT(full) 
[  229.938297][ T6710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.938310][ T6710] Call Trace:
[  229.938318][ T6710]  <TASK>
[  229.938326][ T6710]  dump_stack_lvl+0x189/0x250
[  229.938367][ T6710]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.938391][ T6710]  ? __pfx__printk+0x10/0x10
[  229.938427][ T6710]  ? kernfs_root+0x1c/0x230
[  229.938441][ T6710]  ? kernfs_path_from_node+0x250/0x290
[  229.938453][ T6710]  ? kernfs_path_from_node+0x2f/0x290
[  229.938467][ T6710]  sysfs_create_dir_ns+0x259/0x280
[  229.938489][ T6710]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.938510][ T6710]  ? do_raw_spin_unlock+0x122/0x240
[  229.938526][ T6710]  kobject_add_internal+0x59f/0xb40
[  229.938547][ T6710]  kobject_init_and_add+0x125/0x190
[  229.938566][ T6710]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.938583][ T6710]  ? __raw_spin_lock_init+0x45/0x100
[  229.938598][ T6710]  ? __init_swait_queue_head+0xa9/0x150
[  229.938612][ T6710]  gfs2_sys_fs_add+0x234/0x450
[  229.938633][ T6710]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.938655][ T6710]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.938675][ T6710]  gfs2_fill_super+0x13c0/0x20d0
[  229.938696][ T6710]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.938713][ T6710]  ? sb_set_blocksize+0x104/0x180
[  229.938732][ T6710]  ? setup_bdev_super+0x4c1/0x5b0
[  229.938749][ T6710]  get_tree_bdev_flags+0x40e/0x4d0
[  229.938765][ T6710]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.938781][ T6710]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.938801][ T6710]  gfs2_get_tree+0x51/0x1e0
[  229.938816][ T6710]  vfs_get_tree+0x92/0x2b0
[  229.938842][ T6710]  do_new_mount+0x2a2/0xa30
[  229.938861][ T6710]  ? ns_capable+0x8a/0xf0
[  229.938881][ T6710]  ? __pfx_do_new_mount+0x10/0x10
[  229.938898][ T6710]  ? path_mount+0x61c/0xfe0
[  229.938914][ T6710]  ? user_path_at+0x44/0x60
[  229.938930][ T6710]  __se_sys_mount+0x317/0x410
[  229.938950][ T6710]  ? __pfx___se_sys_mount+0x10/0x10
[  229.938970][ T6710]  ? rcu_is_watching+0x15/0xb0
[  229.938990][ T6710]  ? __x64_sys_mount+0x20/0xc0
[  229.939008][ T6710]  do_syscall_64+0xfa/0xfa0
[  229.939025][ T6710]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.939039][ T6710]  ? clear_bhb_loop+0x60/0xb0
[  229.939055][ T6710]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.939068][ T6710] RIP: 0033:0x7f69ed19038a
[  229.939081][ T6710] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  229.939096][ T6710] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.939111][ T6710] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  229.939122][ T6710] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  229.939132][ T6710] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  229.939142][ T6710] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.939152][ T6710] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  229.939169][ T6710]  </TASK>
[  229.939183][ T6710] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  230.254988][ T6710] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.512825][ T6713] loop1: detected capacity change from 0 to 32768
[  230.524267][ T6713] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.532430][ T6713] CPU: 0 UID: 0 PID: 6713 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT(full) 
[  230.532456][ T6713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.532470][ T6713] Call Trace:
[  230.532478][ T6713]  <TASK>
[  230.532486][ T6713]  dump_stack_lvl+0x189/0x250
[  230.532516][ T6713]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.532540][ T6713]  ? __pfx__printk+0x10/0x10
[  230.532566][ T6713]  ? kernfs_root+0x1c/0x230
[  230.532586][ T6713]  ? kernfs_path_from_node+0x250/0x290
[  230.532604][ T6713]  ? kernfs_path_from_node+0x2f/0x290
[  230.532623][ T6713]  sysfs_create_dir_ns+0x259/0x280
[  230.532654][ T6713]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.532684][ T6713]  ? do_raw_spin_unlock+0x122/0x240
[  230.532707][ T6713]  kobject_add_internal+0x59f/0xb40
[  230.532737][ T6713]  kobject_init_and_add+0x125/0x190
[  230.532764][ T6713]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.532790][ T6713]  ? __raw_spin_lock_init+0x45/0x100
[  230.532829][ T6713]  ? __init_swait_queue_head+0xa9/0x150
[  230.532850][ T6713]  gfs2_sys_fs_add+0x234/0x450
[  230.532881][ T6713]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.532925][ T6713]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.532953][ T6713]  gfs2_fill_super+0x13c0/0x20d0
[  230.532982][ T6713]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.533006][ T6713]  ? sb_set_blocksize+0x104/0x180
[  230.533033][ T6713]  ? setup_bdev_super+0x4c1/0x5b0
[  230.533058][ T6713]  get_tree_bdev_flags+0x40e/0x4d0
[  230.533082][ T6713]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.533104][ T6713]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.533144][ T6713]  gfs2_get_tree+0x51/0x1e0
[  230.533168][ T6713]  vfs_get_tree+0x92/0x2b0
[  230.533192][ T6713]  do_new_mount+0x2a2/0xa30
[  230.533218][ T6713]  ? ns_capable+0x8a/0xf0
[  230.533246][ T6713]  ? __pfx_do_new_mount+0x10/0x10
[  230.533269][ T6713]  ? path_mount+0x61c/0xfe0
[  230.533292][ T6713]  ? user_path_at+0x44/0x60
[  230.533314][ T6713]  __se_sys_mount+0x317/0x410
[  230.533342][ T6713]  ? __pfx___se_sys_mount+0x10/0x10
[  230.533370][ T6713]  ? rcu_is_watching+0x15/0xb0
[  230.533397][ T6713]  ? __x64_sys_mount+0x20/0xc0
[  230.533423][ T6713]  do_syscall_64+0xfa/0xfa0
[  230.533448][ T6713]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.533468][ T6713]  ? clear_bhb_loop+0x60/0xb0
[  230.533490][ T6713]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.533510][ T6713] RIP: 0033:0x7f69ed19038a
[  230.533527][ T6713] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  230.533545][ T6713] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.533567][ T6713] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  230.533583][ T6713] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  230.533598][ T6713] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  230.533612][ T6713] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  230.533626][ T6713] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  230.533649][ T6713]  </TASK>
[  230.533721][ T6713] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  230.848623][ T6713] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.107607][ T6716] loop1: detected capacity change from 0 to 32768
[  231.121165][ T6716] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.128971][ T6716] CPU: 1 UID: 0 PID: 6716 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT(full) 
[  231.129002][ T6716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.129015][ T6716] Call Trace:
[  231.129022][ T6716]  <TASK>
[  231.129030][ T6716]  dump_stack_lvl+0x189/0x250
[  231.129059][ T6716]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.129082][ T6716]  ? __pfx__printk+0x10/0x10
[  231.129106][ T6716]  ? kernfs_root+0x1c/0x230
[  231.129125][ T6716]  ? kernfs_path_from_node+0x250/0x290
[  231.129141][ T6716]  ? kernfs_path_from_node+0x2f/0x290
[  231.129159][ T6716]  sysfs_create_dir_ns+0x259/0x280
[  231.129188][ T6716]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.129216][ T6716]  ? do_raw_spin_unlock+0x122/0x240
[  231.129238][ T6716]  kobject_add_internal+0x59f/0xb40
[  231.129267][ T6716]  kobject_init_and_add+0x125/0x190
[  231.129292][ T6716]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.129316][ T6716]  ? __raw_spin_lock_init+0x45/0x100
[  231.129335][ T6716]  ? __init_swait_queue_head+0xa9/0x150
[  231.129356][ T6716]  gfs2_sys_fs_add+0x234/0x450
[  231.129382][ T6716]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.129412][ T6716]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.129438][ T6716]  gfs2_fill_super+0x13c0/0x20d0
[  231.129464][ T6716]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.129486][ T6716]  ? sb_set_blocksize+0x104/0x180
[  231.129512][ T6716]  ? setup_bdev_super+0x4c1/0x5b0
[  231.129534][ T6716]  get_tree_bdev_flags+0x40e/0x4d0
[  231.129555][ T6716]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.129575][ T6716]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.129602][ T6716]  gfs2_get_tree+0x51/0x1e0
[  231.129622][ T6716]  vfs_get_tree+0x92/0x2b0
[  231.129644][ T6716]  do_new_mount+0x2a2/0xa30
[  231.129668][ T6716]  ? ns_capable+0x8a/0xf0
[  231.129694][ T6716]  ? __pfx_do_new_mount+0x10/0x10
[  231.129717][ T6716]  ? path_mount+0x61c/0xfe0
[  231.129738][ T6716]  ? user_path_at+0x44/0x60
[  231.129760][ T6716]  __se_sys_mount+0x317/0x410
[  231.129786][ T6716]  ? __pfx___se_sys_mount+0x10/0x10
[  231.129812][ T6716]  ? rcu_is_watching+0x15/0xb0
[  231.129837][ T6716]  ? __x64_sys_mount+0x20/0xc0
[  231.129861][ T6716]  do_syscall_64+0xfa/0xfa0
[  231.129885][ T6716]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.129903][ T6716]  ? clear_bhb_loop+0x60/0xb0
[  231.129924][ T6716]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.129942][ T6716] RIP: 0033:0x7f69ed19038a
[  231.129958][ T6716] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  231.129976][ T6716] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.130002][ T6716] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  231.130017][ T6716] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  231.130031][ T6716] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  231.130045][ T6716] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  231.130057][ T6716] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  231.130079][ T6716]  </TASK>
[  231.130097][ T6716] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  231.443279][ T6716] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.696765][ T6719] loop1: detected capacity change from 0 to 32768
[  231.708098][ T6719] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.715564][ T6719] CPU: 0 UID: 0 PID: 6719 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT(full) 
[  231.715588][ T6719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.715600][ T6719] Call Trace:
[  231.715611][ T6719]  <TASK>
[  231.715618][ T6719]  dump_stack_lvl+0x189/0x250
[  231.715650][ T6719]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.715672][ T6719]  ? __pfx__printk+0x10/0x10
[  231.715695][ T6719]  ? kernfs_root+0x1c/0x230
[  231.715715][ T6719]  ? kernfs_path_from_node+0x250/0x290
[  231.715739][ T6719]  ? kernfs_path_from_node+0x2f/0x290
[  231.715758][ T6719]  sysfs_create_dir_ns+0x259/0x280
[  231.715788][ T6719]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.715815][ T6719]  ? do_raw_spin_unlock+0x122/0x240
[  231.715836][ T6719]  kobject_add_internal+0x59f/0xb40
[  231.715865][ T6719]  kobject_init_and_add+0x125/0x190
[  231.715891][ T6719]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.715915][ T6719]  ? __raw_spin_lock_init+0x45/0x100
[  231.715934][ T6719]  ? __init_swait_queue_head+0xa9/0x150
[  231.715954][ T6719]  gfs2_sys_fs_add+0x234/0x450
[  231.715982][ T6719]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.716012][ T6719]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.716038][ T6719]  gfs2_fill_super+0x13c0/0x20d0
[  231.716065][ T6719]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.716088][ T6719]  ? sb_set_blocksize+0x104/0x180
[  231.716113][ T6719]  ? setup_bdev_super+0x4c1/0x5b0
[  231.716136][ T6719]  get_tree_bdev_flags+0x40e/0x4d0
[  231.716157][ T6719]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.716178][ T6719]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.716204][ T6719]  gfs2_get_tree+0x51/0x1e0
[  231.716225][ T6719]  vfs_get_tree+0x92/0x2b0
[  231.716248][ T6719]  do_new_mount+0x2a2/0xa30
[  231.716273][ T6719]  ? ns_capable+0x8a/0xf0
[  231.716298][ T6719]  ? __pfx_do_new_mount+0x10/0x10
[  231.716321][ T6719]  ? path_mount+0x61c/0xfe0
[  231.716342][ T6719]  ? user_path_at+0x44/0x60
[  231.716363][ T6719]  __se_sys_mount+0x317/0x410
[  231.716390][ T6719]  ? __pfx___se_sys_mount+0x10/0x10
[  231.716416][ T6719]  ? rcu_is_watching+0x15/0xb0
[  231.716441][ T6719]  ? __x64_sys_mount+0x20/0xc0
[  231.716465][ T6719]  do_syscall_64+0xfa/0xfa0
[  231.716488][ T6719]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.716506][ T6719]  ? clear_bhb_loop+0x60/0xb0
[  231.716527][ T6719]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.716546][ T6719] RIP: 0033:0x7f69ed19038a
[  231.716563][ T6719] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  231.716580][ T6719] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.716601][ T6719] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  231.716615][ T6719] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  231.716630][ T6719] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  231.716643][ T6719] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  231.716655][ T6719] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  231.716677][ T6719]  </TASK>
[  232.016452][ T6719] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.030576][ T6719] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  232.287343][ T6722] loop1: detected capacity change from 0 to 32768
[  232.295438][ T6722] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.315038][ T6722] CPU: 1 UID: 0 PID: 6722 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT(full) 
[  232.315065][ T6722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.315079][ T6722] Call Trace:
[  232.315087][ T6722]  <TASK>
[  232.315095][ T6722]  dump_stack_lvl+0x189/0x250
[  232.315126][ T6722]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.315150][ T6722]  ? __pfx__printk+0x10/0x10
[  232.315176][ T6722]  ? kernfs_root+0x1c/0x230
[  232.315196][ T6722]  ? kernfs_path_from_node+0x250/0x290
[  232.315214][ T6722]  ? kernfs_path_from_node+0x2f/0x290
[  232.315233][ T6722]  sysfs_create_dir_ns+0x259/0x280
[  232.315265][ T6722]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.315294][ T6722]  ? do_raw_spin_unlock+0x122/0x240
[  232.315317][ T6722]  kobject_add_internal+0x59f/0xb40
[  232.315348][ T6722]  kobject_init_and_add+0x125/0x190
[  232.315376][ T6722]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.315400][ T6722]  ? __raw_spin_lock_init+0x45/0x100
[  232.315421][ T6722]  ? __init_swait_queue_head+0xa9/0x150
[  232.315443][ T6722]  gfs2_sys_fs_add+0x234/0x450
[  232.315473][ T6722]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.315505][ T6722]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.315534][ T6722]  gfs2_fill_super+0x13c0/0x20d0
[  232.315564][ T6722]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.315588][ T6722]  ? sb_set_blocksize+0x104/0x180
[  232.315620][ T6722]  ? setup_bdev_super+0x4c1/0x5b0
[  232.315644][ T6722]  get_tree_bdev_flags+0x40e/0x4d0
[  232.315668][ T6722]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.315690][ T6722]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.315726][ T6722]  gfs2_get_tree+0x51/0x1e0
[  232.315749][ T6722]  vfs_get_tree+0x92/0x2b0
[  232.315773][ T6722]  do_new_mount+0x2a2/0xa30
[  232.315799][ T6722]  ? ns_capable+0x8a/0xf0
[  232.315826][ T6722]  ? __pfx_do_new_mount+0x10/0x10
[  232.315849][ T6722]  ? path_mount+0x61c/0xfe0
[  232.315873][ T6722]  ? user_path_at+0x44/0x60
[  232.315895][ T6722]  __se_sys_mount+0x317/0x410
[  232.315924][ T6722]  ? __pfx___se_sys_mount+0x10/0x10
[  232.315951][ T6722]  ? rcu_is_watching+0x15/0xb0
[  232.315979][ T6722]  ? __x64_sys_mount+0x20/0xc0
[  232.316005][ T6722]  do_syscall_64+0xfa/0xfa0
[  232.316029][ T6722]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.316049][ T6722]  ? clear_bhb_loop+0x60/0xb0
[  232.316071][ T6722]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.316090][ T6722] RIP: 0033:0x7f69ed19038a
[  232.316108][ T6722] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  232.316126][ T6722] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.316149][ T6722] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  232.316164][ T6722] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  232.316179][ T6722] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  232.316193][ T6722] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  232.316207][ T6722] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  232.316230][ T6722]  </TASK>
[  232.616715][ T6722] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.630912][ T6722] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 18:18:42 executed programs: 219
[  232.879237][ T6725] loop1: detected capacity change from 0 to 32768
[  232.922295][ T6725] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.931463][ T6725] CPU: 1 UID: 0 PID: 6725 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  232.931489][ T6725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.931502][ T6725] Call Trace:
[  232.931510][ T6725]  <TASK>
[  232.931519][ T6725]  dump_stack_lvl+0x189/0x250
[  232.931549][ T6725]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.931573][ T6725]  ? __pfx__printk+0x10/0x10
[  232.931599][ T6725]  ? kernfs_root+0x1c/0x230
[  232.931619][ T6725]  ? kernfs_path_from_node+0x250/0x290
[  232.931637][ T6725]  ? kernfs_path_from_node+0x2f/0x290
[  232.931656][ T6725]  sysfs_create_dir_ns+0x259/0x280
[  232.931687][ T6725]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.931717][ T6725]  ? do_raw_spin_unlock+0x122/0x240
[  232.931739][ T6725]  kobject_add_internal+0x59f/0xb40
[  232.931770][ T6725]  kobject_init_and_add+0x125/0x190
[  232.931797][ T6725]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.931830][ T6725]  ? __raw_spin_lock_init+0x45/0x100
[  232.931852][ T6725]  ? __init_swait_queue_head+0xa9/0x150
[  232.931873][ T6725]  gfs2_sys_fs_add+0x234/0x450
[  232.931902][ T6725]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.931934][ T6725]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.931963][ T6725]  gfs2_fill_super+0x13c0/0x20d0
[  232.931992][ T6725]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.932017][ T6725]  ? sb_set_blocksize+0x104/0x180
[  232.932044][ T6725]  ? setup_bdev_super+0x4c1/0x5b0
[  232.932069][ T6725]  get_tree_bdev_flags+0x40e/0x4d0
[  232.932092][ T6725]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.932114][ T6725]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.932153][ T6725]  gfs2_get_tree+0x51/0x1e0
[  232.932174][ T6725]  vfs_get_tree+0x92/0x2b0
[  232.932197][ T6725]  do_new_mount+0x2a2/0xa30
[  232.932221][ T6725]  ? ns_capable+0x8a/0xf0
[  232.932246][ T6725]  ? __pfx_do_new_mount+0x10/0x10
[  232.932268][ T6725]  ? path_mount+0x61c/0xfe0
[  232.932290][ T6725]  ? user_path_at+0x44/0x60
[  232.932310][ T6725]  __se_sys_mount+0x317/0x410
[  232.932337][ T6725]  ? __pfx___se_sys_mount+0x10/0x10
[  232.932363][ T6725]  ? rcu_is_watching+0x15/0xb0
[  232.932389][ T6725]  ? __x64_sys_mount+0x20/0xc0
[  232.932413][ T6725]  do_syscall_64+0xfa/0xfa0
[  232.932435][ T6725]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.932454][ T6725]  ? clear_bhb_loop+0x60/0xb0
[  232.932475][ T6725]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.932493][ T6725] RIP: 0033:0x7f69ed19038a
[  232.932510][ T6725] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  232.932527][ T6725] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.932547][ T6725] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  232.932562][ T6725] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  232.932575][ T6725] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  232.932588][ T6725] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  232.932601][ T6725] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  232.932622][ T6725]  </TASK>
[  232.932641][ T6725] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  233.247149][ T6725] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  233.499255][ T6728] loop1: detected capacity change from 0 to 32768
[  233.511245][ T6728] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.518753][ T6728] CPU: 1 UID: 0 PID: 6728 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT(full) 
[  233.518784][ T6728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.518796][ T6728] Call Trace:
[  233.518804][ T6728]  <TASK>
[  233.518811][ T6728]  dump_stack_lvl+0x189/0x250
[  233.518839][ T6728]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.518861][ T6728]  ? __pfx__printk+0x10/0x10
[  233.518886][ T6728]  ? kernfs_root+0x1c/0x230
[  233.518905][ T6728]  ? kernfs_path_from_node+0x250/0x290
[  233.518921][ T6728]  ? kernfs_path_from_node+0x2f/0x290
[  233.518939][ T6728]  sysfs_create_dir_ns+0x259/0x280
[  233.518969][ T6728]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.518996][ T6728]  ? do_raw_spin_unlock+0x122/0x240
[  233.519017][ T6728]  kobject_add_internal+0x59f/0xb40
[  233.519046][ T6728]  kobject_init_and_add+0x125/0x190
[  233.519071][ T6728]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.519095][ T6728]  ? __raw_spin_lock_init+0x45/0x100
[  233.519114][ T6728]  ? __init_swait_queue_head+0xa9/0x150
[  233.519135][ T6728]  gfs2_sys_fs_add+0x234/0x450
[  233.519162][ T6728]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.519193][ T6728]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.519219][ T6728]  gfs2_fill_super+0x13c0/0x20d0
[  233.519246][ T6728]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.519269][ T6728]  ? sb_set_blocksize+0x104/0x180
[  233.519294][ T6728]  ? setup_bdev_super+0x4c1/0x5b0
[  233.519317][ T6728]  get_tree_bdev_flags+0x40e/0x4d0
[  233.519339][ T6728]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.519359][ T6728]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.519385][ T6728]  gfs2_get_tree+0x51/0x1e0
[  233.519406][ T6728]  vfs_get_tree+0x92/0x2b0
[  233.519428][ T6728]  do_new_mount+0x2a2/0xa30
[  233.519452][ T6728]  ? ns_capable+0x8a/0xf0
[  233.519477][ T6728]  ? __pfx_do_new_mount+0x10/0x10
[  233.519499][ T6728]  ? path_mount+0x61c/0xfe0
[  233.519520][ T6728]  ? user_path_at+0x44/0x60
[  233.519540][ T6728]  __se_sys_mount+0x317/0x410
[  233.519567][ T6728]  ? __pfx___se_sys_mount+0x10/0x10
[  233.519593][ T6728]  ? rcu_is_watching+0x15/0xb0
[  233.519618][ T6728]  ? __x64_sys_mount+0x20/0xc0
[  233.519643][ T6728]  do_syscall_64+0xfa/0xfa0
[  233.519667][ T6728]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.519685][ T6728]  ? clear_bhb_loop+0x60/0xb0
[  233.519706][ T6728]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.519725][ T6728] RIP: 0033:0x7f69ed19038a
[  233.519741][ T6728] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  233.519766][ T6728] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.519786][ T6728] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  233.519801][ T6728] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  233.519815][ T6728] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  233.519828][ T6728] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  233.519841][ T6728] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  233.519863][ T6728]  </TASK>
[  233.519882][ T6728] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  233.836699][ T6728] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.104280][ T6732] loop1: detected capacity change from 0 to 32768
[  234.119547][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.127333][ T6732] CPU: 1 UID: 0 PID: 6732 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full) 
[  234.127356][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.127368][ T6732] Call Trace:
[  234.127375][ T6732]  <TASK>
[  234.127383][ T6732]  dump_stack_lvl+0x189/0x250
[  234.127412][ T6732]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.127450][ T6732]  ? __pfx__printk+0x10/0x10
[  234.127481][ T6732]  ? kernfs_root+0x1c/0x230
[  234.127500][ T6732]  ? kernfs_path_from_node+0x250/0x290
[  234.127517][ T6732]  ? kernfs_path_from_node+0x2f/0x290
[  234.127534][ T6732]  sysfs_create_dir_ns+0x259/0x280
[  234.127564][ T6732]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.127591][ T6732]  ? do_raw_spin_unlock+0x122/0x240
[  234.127611][ T6732]  kobject_add_internal+0x59f/0xb40
[  234.127640][ T6732]  kobject_init_and_add+0x125/0x190
[  234.127665][ T6732]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.127688][ T6732]  ? __raw_spin_lock_init+0x45/0x100
[  234.127708][ T6732]  ? __init_swait_queue_head+0xa9/0x150
[  234.127728][ T6732]  gfs2_sys_fs_add+0x234/0x450
[  234.127755][ T6732]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.127785][ T6732]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.127812][ T6732]  gfs2_fill_super+0x13c0/0x20d0
[  234.127839][ T6732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.127861][ T6732]  ? sb_set_blocksize+0x104/0x180
[  234.127887][ T6732]  ? setup_bdev_super+0x4c1/0x5b0
[  234.127911][ T6732]  get_tree_bdev_flags+0x40e/0x4d0
[  234.127932][ T6732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.127953][ T6732]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.127978][ T6732]  gfs2_get_tree+0x51/0x1e0
[  234.128000][ T6732]  vfs_get_tree+0x92/0x2b0
[  234.128022][ T6732]  do_new_mount+0x2a2/0xa30
[  234.128047][ T6732]  ? ns_capable+0x8a/0xf0
[  234.128073][ T6732]  ? __pfx_do_new_mount+0x10/0x10
[  234.128095][ T6732]  ? path_mount+0x61c/0xfe0
[  234.128117][ T6732]  ? user_path_at+0x44/0x60
[  234.128138][ T6732]  __se_sys_mount+0x317/0x410
[  234.128164][ T6732]  ? __pfx___se_sys_mount+0x10/0x10
[  234.128190][ T6732]  ? rcu_is_watching+0x15/0xb0
[  234.128215][ T6732]  ? __x64_sys_mount+0x20/0xc0
[  234.128240][ T6732]  do_syscall_64+0xfa/0xfa0
[  234.128263][ T6732]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.128281][ T6732]  ? clear_bhb_loop+0x60/0xb0
[  234.128302][ T6732]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.128320][ T6732] RIP: 0033:0x7f69ed19038a
[  234.128337][ T6732] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  234.128354][ T6732] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.128375][ T6732] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  234.128390][ T6732] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  234.128413][ T6732] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  234.128426][ T6732] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.128439][ T6732] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  234.128466][ T6732]  </TASK>
[  234.128485][ T6732] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  234.442631][ T6732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.705384][ T6736] loop1: detected capacity change from 0 to 32768
[  234.718981][ T6736] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.726612][ T6736] CPU: 1 UID: 0 PID: 6736 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT(full) 
[  234.726639][ T6736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.726661][ T6736] Call Trace:
[  234.726669][ T6736]  <TASK>
[  234.726678][ T6736]  dump_stack_lvl+0x189/0x250
[  234.726711][ T6736]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.726736][ T6736]  ? __pfx__printk+0x10/0x10
[  234.726763][ T6736]  ? kernfs_root+0x1c/0x230
[  234.726783][ T6736]  ? kernfs_path_from_node+0x250/0x290
[  234.726801][ T6736]  ? kernfs_path_from_node+0x2f/0x290
[  234.726822][ T6736]  sysfs_create_dir_ns+0x259/0x280
[  234.726854][ T6736]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.726885][ T6736]  ? do_raw_spin_unlock+0x122/0x240
[  234.726908][ T6736]  kobject_add_internal+0x59f/0xb40
[  234.726940][ T6736]  kobject_init_and_add+0x125/0x190
[  234.726967][ T6736]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.726993][ T6736]  ? __raw_spin_lock_init+0x45/0x100
[  234.727015][ T6736]  ? __init_swait_queue_head+0xa9/0x150
[  234.727037][ T6736]  gfs2_sys_fs_add+0x234/0x450
[  234.727068][ T6736]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.727101][ T6736]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.727130][ T6736]  gfs2_fill_super+0x13c0/0x20d0
[  234.727160][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.727186][ T6736]  ? sb_set_blocksize+0x104/0x180
[  234.727214][ T6736]  ? setup_bdev_super+0x4c1/0x5b0
[  234.727240][ T6736]  get_tree_bdev_flags+0x40e/0x4d0
[  234.727264][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.727287][ T6736]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.727316][ T6736]  gfs2_get_tree+0x51/0x1e0
[  234.727339][ T6736]  vfs_get_tree+0x92/0x2b0
[  234.727363][ T6736]  do_new_mount+0x2a2/0xa30
[  234.727408][ T6736]  ? ns_capable+0x8a/0xf0
[  234.727437][ T6736]  ? __pfx_do_new_mount+0x10/0x10
[  234.727462][ T6736]  ? path_mount+0x61c/0xfe0
[  234.727485][ T6736]  ? user_path_at+0x44/0x60
[  234.727508][ T6736]  __se_sys_mount+0x317/0x410
[  234.727538][ T6736]  ? __pfx___se_sys_mount+0x10/0x10
[  234.727567][ T6736]  ? rcu_is_watching+0x15/0xb0
[  234.727596][ T6736]  ? __x64_sys_mount+0x20/0xc0
[  234.727623][ T6736]  do_syscall_64+0xfa/0xfa0
[  234.727657][ T6736]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.727678][ T6736]  ? clear_bhb_loop+0x60/0xb0
[  234.727701][ T6736]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.727722][ T6736] RIP: 0033:0x7f69ed19038a
[  234.727741][ T6736] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  234.727760][ T6736] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.727783][ T6736] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  234.727799][ T6736] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  234.727815][ T6736] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  234.727829][ T6736] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.727843][ T6736] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  234.727867][ T6736]  </TASK>
[  234.727921][ T6736] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.042038][ T6736] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.312823][ T6739] loop1: detected capacity change from 0 to 32768
[  235.334540][ T6739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.342149][ T6739] CPU: 1 UID: 0 PID: 6739 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  235.342177][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.342191][ T6739] Call Trace:
[  235.342199][ T6739]  <TASK>
[  235.342208][ T6739]  dump_stack_lvl+0x189/0x250
[  235.342238][ T6739]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.342263][ T6739]  ? __pfx__printk+0x10/0x10
[  235.342291][ T6739]  ? kernfs_root+0x1c/0x230
[  235.342306][ T6739]  ? kernfs_path_from_node+0x250/0x290
[  235.342318][ T6739]  ? kernfs_path_from_node+0x2f/0x290
[  235.342332][ T6739]  sysfs_create_dir_ns+0x259/0x280
[  235.342356][ T6739]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.342377][ T6739]  ? do_raw_spin_unlock+0x122/0x240
[  235.342396][ T6739]  kobject_add_internal+0x59f/0xb40
[  235.342419][ T6739]  kobject_init_and_add+0x125/0x190
[  235.342439][ T6739]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.342457][ T6739]  ? __raw_spin_lock_init+0x45/0x100
[  235.342473][ T6739]  ? __init_swait_queue_head+0xa9/0x150
[  235.342488][ T6739]  gfs2_sys_fs_add+0x234/0x450
[  235.342510][ T6739]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.342534][ T6739]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.342555][ T6739]  gfs2_fill_super+0x13c0/0x20d0
[  235.342576][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.342594][ T6739]  ? sb_set_blocksize+0x104/0x180
[  235.342614][ T6739]  ? setup_bdev_super+0x4c1/0x5b0
[  235.342646][ T6739]  get_tree_bdev_flags+0x40e/0x4d0
[  235.342663][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.342679][ T6739]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.342701][ T6739]  gfs2_get_tree+0x51/0x1e0
[  235.342717][ T6739]  vfs_get_tree+0x92/0x2b0
[  235.342736][ T6739]  do_new_mount+0x2a2/0xa30
[  235.342755][ T6739]  ? ns_capable+0x8a/0xf0
[  235.342776][ T6739]  ? __pfx_do_new_mount+0x10/0x10
[  235.342793][ T6739]  ? path_mount+0x61c/0xfe0
[  235.342810][ T6739]  ? user_path_at+0x44/0x60
[  235.342827][ T6739]  __se_sys_mount+0x317/0x410
[  235.342848][ T6739]  ? __pfx___se_sys_mount+0x10/0x10
[  235.342869][ T6739]  ? rcu_is_watching+0x15/0xb0
[  235.342889][ T6739]  ? __x64_sys_mount+0x20/0xc0
[  235.342909][ T6739]  do_syscall_64+0xfa/0xfa0
[  235.342926][ T6739]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.342941][ T6739]  ? clear_bhb_loop+0x60/0xb0
[  235.342957][ T6739]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.342972][ T6739] RIP: 0033:0x7f69ed19038a
[  235.342985][ T6739] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  235.342999][ T6739] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.343015][ T6739] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  235.343027][ T6739] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  235.343038][ T6739] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  235.343048][ T6739] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  235.343058][ T6739] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  235.343075][ T6739]  </TASK>
[  235.343407][ T6739] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.658384][ T6739] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.921162][ T6744] loop1: detected capacity change from 0 to 32768
[  235.937633][ T6744] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.945913][ T6744] CPU: 1 UID: 0 PID: 6744 Comm: syz.1.239 Not tainted syzkaller #0 PREEMPT(full) 
[  235.945937][ T6744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.945950][ T6744] Call Trace:
[  235.945957][ T6744]  <TASK>
[  235.945965][ T6744]  dump_stack_lvl+0x189/0x250
[  235.945995][ T6744]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.946017][ T6744]  ? __pfx__printk+0x10/0x10
[  235.946041][ T6744]  ? kernfs_root+0x1c/0x230
[  235.946059][ T6744]  ? kernfs_path_from_node+0x250/0x290
[  235.946075][ T6744]  ? kernfs_path_from_node+0x2f/0x290
[  235.946104][ T6744]  sysfs_create_dir_ns+0x259/0x280
[  235.946133][ T6744]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.946161][ T6744]  ? do_raw_spin_unlock+0x122/0x240
[  235.946182][ T6744]  kobject_add_internal+0x59f/0xb40
[  235.946210][ T6744]  kobject_init_and_add+0x125/0x190
[  235.946235][ T6744]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.946259][ T6744]  ? __raw_spin_lock_init+0x45/0x100
[  235.946279][ T6744]  ? __init_swait_queue_head+0xa9/0x150
[  235.946299][ T6744]  gfs2_sys_fs_add+0x234/0x450
[  235.946335][ T6744]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.946365][ T6744]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.946392][ T6744]  gfs2_fill_super+0x13c0/0x20d0
[  235.946419][ T6744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.946442][ T6744]  ? sb_set_blocksize+0x104/0x180
[  235.946468][ T6744]  ? setup_bdev_super+0x4c1/0x5b0
[  235.946491][ T6744]  get_tree_bdev_flags+0x40e/0x4d0
[  235.946513][ T6744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.946534][ T6744]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.946560][ T6744]  gfs2_get_tree+0x51/0x1e0
[  235.946582][ T6744]  vfs_get_tree+0x92/0x2b0
[  235.946604][ T6744]  do_new_mount+0x2a2/0xa30
[  235.946629][ T6744]  ? ns_capable+0x8a/0xf0
[  235.946654][ T6744]  ? __pfx_do_new_mount+0x10/0x10
[  235.946677][ T6744]  ? path_mount+0x61c/0xfe0
[  235.946698][ T6744]  ? user_path_at+0x44/0x60
[  235.946719][ T6744]  __se_sys_mount+0x317/0x410
[  235.946763][ T6744]  ? __pfx___se_sys_mount+0x10/0x10
[  235.946791][ T6744]  ? rcu_is_watching+0x15/0xb0
[  235.946818][ T6744]  ? __x64_sys_mount+0x20/0xc0
[  235.946845][ T6744]  do_syscall_64+0xfa/0xfa0
[  235.946869][ T6744]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.946889][ T6744]  ? clear_bhb_loop+0x60/0xb0
[  235.946911][ T6744]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.946930][ T6744] RIP: 0033:0x7f69ed19038a
[  235.946948][ T6744] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  235.946966][ T6744] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.946988][ T6744] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  235.947003][ T6744] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  235.947018][ T6744] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  235.947032][ T6744] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  235.947046][ T6744] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  235.947069][ T6744]  </TASK>
[  235.947088][ T6744] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.261171][ T6744] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.529454][ T6748] loop1: detected capacity change from 0 to 32768
[  236.541003][ T6748] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.548701][ T6748] CPU: 1 UID: 0 PID: 6748 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT(full) 
[  236.548727][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.548740][ T6748] Call Trace:
[  236.548749][ T6748]  <TASK>
[  236.548757][ T6748]  dump_stack_lvl+0x189/0x250
[  236.548787][ T6748]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.548811][ T6748]  ? __pfx__printk+0x10/0x10
[  236.548836][ T6748]  ? kernfs_root+0x1c/0x230
[  236.548857][ T6748]  ? kernfs_path_from_node+0x250/0x290
[  236.548875][ T6748]  ? kernfs_path_from_node+0x2f/0x290
[  236.548894][ T6748]  sysfs_create_dir_ns+0x259/0x280
[  236.548925][ T6748]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.548954][ T6748]  ? do_raw_spin_unlock+0x122/0x240
[  236.548976][ T6748]  kobject_add_internal+0x59f/0xb40
[  236.549006][ T6748]  kobject_init_and_add+0x125/0x190
[  236.549033][ T6748]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.549059][ T6748]  ? __raw_spin_lock_init+0x45/0x100
[  236.549079][ T6748]  ? __init_swait_queue_head+0xa9/0x150
[  236.549101][ T6748]  gfs2_sys_fs_add+0x234/0x450
[  236.549130][ T6748]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.549162][ T6748]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.549190][ T6748]  gfs2_fill_super+0x13c0/0x20d0
[  236.549219][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.549254][ T6748]  ? sb_set_blocksize+0x104/0x180
[  236.549281][ T6748]  ? setup_bdev_super+0x4c1/0x5b0
[  236.549306][ T6748]  get_tree_bdev_flags+0x40e/0x4d0
[  236.549330][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.549351][ T6748]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.549379][ T6748]  gfs2_get_tree+0x51/0x1e0
[  236.549401][ T6748]  vfs_get_tree+0x92/0x2b0
[  236.549425][ T6748]  do_new_mount+0x2a2/0xa30
[  236.549452][ T6748]  ? ns_capable+0x8a/0xf0
[  236.549478][ T6748]  ? __pfx_do_new_mount+0x10/0x10
[  236.549503][ T6748]  ? path_mount+0x61c/0xfe0
[  236.549527][ T6748]  ? user_path_at+0x44/0x60
[  236.549550][ T6748]  __se_sys_mount+0x317/0x410
[  236.549578][ T6748]  ? __pfx___se_sys_mount+0x10/0x10
[  236.549605][ T6748]  ? rcu_is_watching+0x15/0xb0
[  236.549632][ T6748]  ? __x64_sys_mount+0x20/0xc0
[  236.549659][ T6748]  do_syscall_64+0xfa/0xfa0
[  236.549684][ T6748]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.549703][ T6748]  ? clear_bhb_loop+0x60/0xb0
[  236.549725][ T6748]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.549744][ T6748] RIP: 0033:0x7f69ed19038a
[  236.549761][ T6748] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  236.549779][ T6748] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.549801][ T6748] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  236.549817][ T6748] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  236.549832][ T6748] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  236.549846][ T6748] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  236.549860][ T6748] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  236.549883][ T6748]  </TASK>
[  236.549903][ T6748] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  236.864164][ T6748] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.124902][ T6751] loop1: detected capacity change from 0 to 32768
[  237.138880][ T6751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.146451][ T6751] CPU: 1 UID: 0 PID: 6751 Comm: syz.1.241 Not tainted syzkaller #0 PREEMPT(full) 
[  237.146488][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.146500][ T6751] Call Trace:
[  237.146507][ T6751]  <TASK>
[  237.146515][ T6751]  dump_stack_lvl+0x189/0x250
[  237.146542][ T6751]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.146562][ T6751]  ? __pfx__printk+0x10/0x10
[  237.146585][ T6751]  ? kernfs_root+0x1c/0x230
[  237.146621][ T6751]  ? kernfs_path_from_node+0x250/0x290
[  237.146638][ T6751]  ? kernfs_path_from_node+0x2f/0x290
[  237.146658][ T6751]  sysfs_create_dir_ns+0x259/0x280
[  237.146688][ T6751]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.146716][ T6751]  ? do_raw_spin_unlock+0x122/0x240
[  237.146738][ T6751]  kobject_add_internal+0x59f/0xb40
[  237.146767][ T6751]  kobject_init_and_add+0x125/0x190
[  237.146793][ T6751]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.146817][ T6751]  ? __raw_spin_lock_init+0x45/0x100
[  237.146837][ T6751]  ? __init_swait_queue_head+0xa9/0x150
[  237.146858][ T6751]  gfs2_sys_fs_add+0x234/0x450
[  237.146889][ T6751]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.146921][ T6751]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.146948][ T6751]  gfs2_fill_super+0x13c0/0x20d0
[  237.146977][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.147001][ T6751]  ? sb_set_blocksize+0x104/0x180
[  237.147027][ T6751]  ? setup_bdev_super+0x4c1/0x5b0
[  237.147052][ T6751]  get_tree_bdev_flags+0x40e/0x4d0
[  237.147075][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.147097][ T6751]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.147125][ T6751]  gfs2_get_tree+0x51/0x1e0
[  237.147148][ T6751]  vfs_get_tree+0x92/0x2b0
[  237.147196][ T6751]  do_new_mount+0x2a2/0xa30
[  237.147222][ T6751]  ? ns_capable+0x8a/0xf0
[  237.147249][ T6751]  ? __pfx_do_new_mount+0x10/0x10
[  237.147273][ T6751]  ? path_mount+0x61c/0xfe0
[  237.147296][ T6751]  ? user_path_at+0x44/0x60
[  237.147318][ T6751]  __se_sys_mount+0x317/0x410
[  237.147346][ T6751]  ? __pfx___se_sys_mount+0x10/0x10
[  237.147374][ T6751]  ? rcu_is_watching+0x15/0xb0
[  237.147402][ T6751]  ? __x64_sys_mount+0x20/0xc0
[  237.147447][ T6751]  do_syscall_64+0xfa/0xfa0
[  237.147472][ T6751]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.147493][ T6751]  ? clear_bhb_loop+0x60/0xb0
[  237.147516][ T6751]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.147536][ T6751] RIP: 0033:0x7f69ed19038a
[  237.147554][ T6751] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  237.147573][ T6751] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.147596][ T6751] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  237.147612][ T6751] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  237.147626][ T6751] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  237.147641][ T6751] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  237.147655][ T6751] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  237.147679][ T6751]  </TASK>
[  237.147700][ T6751] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  237.461543][ T6751] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.728375][ T6755] loop1: detected capacity change from 0 to 32768
[  237.753549][ T6755] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.763188][ T6755] CPU: 0 UID: 0 PID: 6755 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT(full) 
[  237.763215][ T6755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.763229][ T6755] Call Trace:
[  237.763237][ T6755]  <TASK>
[  237.763246][ T6755]  dump_stack_lvl+0x189/0x250
[  237.763278][ T6755]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.763302][ T6755]  ? __pfx__printk+0x10/0x10
[  237.763328][ T6755]  ? kernfs_root+0x1c/0x230
[  237.763348][ T6755]  ? kernfs_path_from_node+0x250/0x290
[  237.763365][ T6755]  ? kernfs_path_from_node+0x2f/0x290
[  237.763385][ T6755]  sysfs_create_dir_ns+0x259/0x280
[  237.763423][ T6755]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.763453][ T6755]  ? do_raw_spin_unlock+0x122/0x240
[  237.763476][ T6755]  kobject_add_internal+0x59f/0xb40
[  237.763506][ T6755]  kobject_init_and_add+0x125/0x190
[  237.763534][ T6755]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.763559][ T6755]  ? __raw_spin_lock_init+0x45/0x100
[  237.763580][ T6755]  ? __init_swait_queue_head+0xa9/0x150
[  237.763601][ T6755]  gfs2_sys_fs_add+0x234/0x450
[  237.763630][ T6755]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.763662][ T6755]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.763690][ T6755]  gfs2_fill_super+0x13c0/0x20d0
[  237.763720][ T6755]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.763744][ T6755]  ? sb_set_blocksize+0x104/0x180
[  237.763771][ T6755]  ? setup_bdev_super+0x4c1/0x5b0
[  237.763796][ T6755]  get_tree_bdev_flags+0x40e/0x4d0
[  237.763819][ T6755]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.763841][ T6755]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.763869][ T6755]  gfs2_get_tree+0x51/0x1e0
[  237.763892][ T6755]  vfs_get_tree+0x92/0x2b0
[  237.763916][ T6755]  do_new_mount+0x2a2/0xa30
[  237.763943][ T6755]  ? ns_capable+0x8a/0xf0
[  237.763970][ T6755]  ? __pfx_do_new_mount+0x10/0x10
[  237.763994][ T6755]  ? path_mount+0x61c/0xfe0
[  237.764017][ T6755]  ? user_path_at+0x44/0x60
[  237.764039][ T6755]  __se_sys_mount+0x317/0x410
[  237.764067][ T6755]  ? __pfx___se_sys_mount+0x10/0x10
[  237.764095][ T6755]  ? rcu_is_watching+0x15/0xb0
[  237.764122][ T6755]  ? __x64_sys_mount+0x20/0xc0
[  237.764148][ T6755]  do_syscall_64+0xfa/0xfa0
[  237.764173][ T6755]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.764193][ T6755]  ? clear_bhb_loop+0x60/0xb0
[  237.764216][ T6755]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.764235][ T6755] RIP: 0033:0x7f69ed19038a
[  237.764253][ T6755] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  237.764271][ T6755] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.764292][ T6755] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  237.764307][ T6755] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  237.764321][ T6755] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  237.764335][ T6755] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  237.764348][ T6755] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  237.764371][ T6755]  </TASK>
[  237.764390][ T6755] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.079814][ T6755] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 18:18:47 executed programs: 228
[  238.354326][ T6758] loop1: detected capacity change from 0 to 32768
[  238.368338][ T6758] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.375833][ T6758] CPU: 1 UID: 0 PID: 6758 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT(full) 
[  238.375858][ T6758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.375870][ T6758] Call Trace:
[  238.375877][ T6758]  <TASK>
[  238.375885][ T6758]  dump_stack_lvl+0x189/0x250
[  238.375914][ T6758]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.375937][ T6758]  ? __pfx__printk+0x10/0x10
[  238.375962][ T6758]  ? kernfs_root+0x1c/0x230
[  238.375981][ T6758]  ? kernfs_path_from_node+0x250/0x290
[  238.375997][ T6758]  ? kernfs_path_from_node+0x2f/0x290
[  238.376016][ T6758]  sysfs_create_dir_ns+0x259/0x280
[  238.376046][ T6758]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.376075][ T6758]  ? do_raw_spin_unlock+0x122/0x240
[  238.376097][ T6758]  kobject_add_internal+0x59f/0xb40
[  238.376125][ T6758]  kobject_init_and_add+0x125/0x190
[  238.376151][ T6758]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.376175][ T6758]  ? __raw_spin_lock_init+0x45/0x100
[  238.376195][ T6758]  ? __init_swait_queue_head+0xa9/0x150
[  238.376215][ T6758]  gfs2_sys_fs_add+0x234/0x450
[  238.376243][ T6758]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.376273][ T6758]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.376300][ T6758]  gfs2_fill_super+0x13c0/0x20d0
[  238.376335][ T6758]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.376358][ T6758]  ? sb_set_blocksize+0x104/0x180
[  238.376384][ T6758]  ? setup_bdev_super+0x4c1/0x5b0
[  238.376408][ T6758]  get_tree_bdev_flags+0x40e/0x4d0
[  238.376430][ T6758]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.376451][ T6758]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.376478][ T6758]  gfs2_get_tree+0x51/0x1e0
[  238.376500][ T6758]  vfs_get_tree+0x92/0x2b0
[  238.376522][ T6758]  do_new_mount+0x2a2/0xa30
[  238.376547][ T6758]  ? ns_capable+0x8a/0xf0
[  238.376573][ T6758]  ? __pfx_do_new_mount+0x10/0x10
[  238.376596][ T6758]  ? path_mount+0x61c/0xfe0
[  238.376618][ T6758]  ? user_path_at+0x44/0x60
[  238.376639][ T6758]  __se_sys_mount+0x317/0x410
[  238.376667][ T6758]  ? __pfx___se_sys_mount+0x10/0x10
[  238.376693][ T6758]  ? rcu_is_watching+0x15/0xb0
[  238.376719][ T6758]  ? __x64_sys_mount+0x20/0xc0
[  238.376744][ T6758]  do_syscall_64+0xfa/0xfa0
[  238.376767][ T6758]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.376785][ T6758]  ? clear_bhb_loop+0x60/0xb0
[  238.376806][ T6758]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.376825][ T6758] RIP: 0033:0x7f69ed19038a
[  238.376842][ T6758] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  238.376859][ T6758] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.376880][ T6758] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  238.376895][ T6758] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  238.376909][ T6758] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  238.376922][ T6758] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  238.376935][ T6758] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  238.376957][ T6758]  </TASK>
[  238.376974][ T6758] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  238.690542][ T6758] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  238.947250][ T6761] loop1: detected capacity change from 0 to 32768
[  238.966522][ T6761] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.974063][ T6761] CPU: 0 UID: 0 PID: 6761 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT(full) 
[  238.974091][ T6761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.974106][ T6761] Call Trace:
[  238.974114][ T6761]  <TASK>
[  238.974123][ T6761]  dump_stack_lvl+0x189/0x250
[  238.974155][ T6761]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.974179][ T6761]  ? __pfx__printk+0x10/0x10
[  238.974206][ T6761]  ? kernfs_root+0x1c/0x230
[  238.974227][ T6761]  ? kernfs_path_from_node+0x250/0x290
[  238.974245][ T6761]  ? kernfs_path_from_node+0x2f/0x290
[  238.974265][ T6761]  sysfs_create_dir_ns+0x259/0x280
[  238.974297][ T6761]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.974328][ T6761]  ? do_raw_spin_unlock+0x122/0x240
[  238.974352][ T6761]  kobject_add_internal+0x59f/0xb40
[  238.974383][ T6761]  kobject_init_and_add+0x125/0x190
[  238.974411][ T6761]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.974445][ T6761]  ? __raw_spin_lock_init+0x45/0x100
[  238.974467][ T6761]  ? __init_swait_queue_head+0xa9/0x150
[  238.974488][ T6761]  gfs2_sys_fs_add+0x234/0x450
[  238.974518][ T6761]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.974550][ T6761]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.974580][ T6761]  gfs2_fill_super+0x13c0/0x20d0
[  238.974609][ T6761]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.974635][ T6761]  ? sb_set_blocksize+0x104/0x180
[  238.974664][ T6761]  ? setup_bdev_super+0x4c1/0x5b0
[  238.974690][ T6761]  get_tree_bdev_flags+0x40e/0x4d0
[  238.974715][ T6761]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.974738][ T6761]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.974767][ T6761]  gfs2_get_tree+0x51/0x1e0
[  238.974791][ T6761]  vfs_get_tree+0x92/0x2b0
[  238.974816][ T6761]  do_new_mount+0x2a2/0xa30
[  238.974843][ T6761]  ? ns_capable+0x8a/0xf0
[  238.974872][ T6761]  ? __pfx_do_new_mount+0x10/0x10
[  238.974897][ T6761]  ? path_mount+0x61c/0xfe0
[  238.974920][ T6761]  ? user_path_at+0x44/0x60
[  238.974943][ T6761]  __se_sys_mount+0x317/0x410
[  238.974973][ T6761]  ? __pfx___se_sys_mount+0x10/0x10
[  238.975015][ T6761]  ? rcu_is_watching+0x15/0xb0
[  238.975045][ T6761]  ? __x64_sys_mount+0x20/0xc0
[  238.975073][ T6761]  do_syscall_64+0xfa/0xfa0
[  238.975098][ T6761]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.975119][ T6761]  ? clear_bhb_loop+0x60/0xb0
[  238.975142][ T6761]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.975162][ T6761] RIP: 0033:0x7f69ed19038a
[  238.975181][ T6761] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  238.975200][ T6761] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.975223][ T6761] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  238.975240][ T6761] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  238.975255][ T6761] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  238.975270][ T6761] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  238.975284][ T6761] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  238.975307][ T6761]  </TASK>
[  238.975330][ T6761] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.291062][ T6761] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.542308][ T6764] loop1: detected capacity change from 0 to 32768
[  239.558407][ T6764] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  239.566216][ T6764] CPU: 0 UID: 0 PID: 6764 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT(full) 
[  239.566239][ T6764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  239.566251][ T6764] Call Trace:
[  239.566258][ T6764]  <TASK>
[  239.566266][ T6764]  dump_stack_lvl+0x189/0x250
[  239.566295][ T6764]  ? __pfx_dump_stack_lvl+0x10/0x10
[  239.566317][ T6764]  ? __pfx__printk+0x10/0x10
[  239.566341][ T6764]  ? kernfs_root+0x1c/0x230
[  239.566360][ T6764]  ? kernfs_path_from_node+0x250/0x290
[  239.566376][ T6764]  ? kernfs_path_from_node+0x2f/0x290
[  239.566393][ T6764]  sysfs_create_dir_ns+0x259/0x280
[  239.566422][ T6764]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  239.566449][ T6764]  ? do_raw_spin_unlock+0x122/0x240
[  239.566471][ T6764]  kobject_add_internal+0x59f/0xb40
[  239.566499][ T6764]  kobject_init_and_add+0x125/0x190
[  239.566524][ T6764]  ? __pfx_kobject_init_and_add+0x10/0x10
[  239.566548][ T6764]  ? __raw_spin_lock_init+0x45/0x100
[  239.566567][ T6764]  ? __init_swait_queue_head+0xa9/0x150
[  239.566587][ T6764]  gfs2_sys_fs_add+0x234/0x450
[  239.566615][ T6764]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  239.566644][ T6764]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  239.566670][ T6764]  gfs2_fill_super+0x13c0/0x20d0
[  239.566698][ T6764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.566721][ T6764]  ? sb_set_blocksize+0x104/0x180
[  239.566746][ T6764]  ? setup_bdev_super+0x4c1/0x5b0
[  239.566770][ T6764]  get_tree_bdev_flags+0x40e/0x4d0
[  239.566791][ T6764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.566811][ T6764]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  239.566838][ T6764]  gfs2_get_tree+0x51/0x1e0
[  239.566859][ T6764]  vfs_get_tree+0x92/0x2b0
[  239.566882][ T6764]  do_new_mount+0x2a2/0xa30
[  239.566906][ T6764]  ? ns_capable+0x8a/0xf0
[  239.566932][ T6764]  ? __pfx_do_new_mount+0x10/0x10
[  239.566976][ T6764]  ? path_mount+0x61c/0xfe0
[  239.567003][ T6764]  ? user_path_at+0x44/0x60
[  239.567024][ T6764]  __se_sys_mount+0x317/0x410
[  239.567068][ T6764]  ? __pfx___se_sys_mount+0x10/0x10
[  239.567094][ T6764]  ? rcu_is_watching+0x15/0xb0
[  239.567122][ T6764]  ? __x64_sys_mount+0x20/0xc0
[  239.567148][ T6764]  do_syscall_64+0xfa/0xfa0
[  239.567182][ T6764]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.567201][ T6764]  ? clear_bhb_loop+0x60/0xb0
[  239.567222][ T6764]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.567240][ T6764] RIP: 0033:0x7f69ed19038a
[  239.567256][ T6764] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  239.567274][ T6764] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.567294][ T6764] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  239.567309][ T6764] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  239.567322][ T6764] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  239.567335][ T6764] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  239.567348][ T6764] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  239.567370][ T6764]  </TASK>
[  239.567388][ T6764] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  239.881772][ T6764] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.131809][ T6767] loop1: detected capacity change from 0 to 32768
[  240.141936][ T6767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.150307][ T6767] CPU: 1 UID: 0 PID: 6767 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT(full) 
[  240.150332][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.150347][ T6767] Call Trace:
[  240.150355][ T6767]  <TASK>
[  240.150363][ T6767]  dump_stack_lvl+0x189/0x250
[  240.150396][ T6767]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.150421][ T6767]  ? __pfx__printk+0x10/0x10
[  240.150447][ T6767]  ? kernfs_root+0x1c/0x230
[  240.150468][ T6767]  ? kernfs_path_from_node+0x250/0x290
[  240.150504][ T6767]  ? kernfs_path_from_node+0x2f/0x290
[  240.150524][ T6767]  sysfs_create_dir_ns+0x259/0x280
[  240.150556][ T6767]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.150586][ T6767]  ? do_raw_spin_unlock+0x122/0x240
[  240.150610][ T6767]  kobject_add_internal+0x59f/0xb40
[  240.150642][ T6767]  kobject_init_and_add+0x125/0x190
[  240.150670][ T6767]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.150696][ T6767]  ? __raw_spin_lock_init+0x45/0x100
[  240.150718][ T6767]  ? __init_swait_queue_head+0xa9/0x150
[  240.150739][ T6767]  gfs2_sys_fs_add+0x234/0x450
[  240.150769][ T6767]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.150802][ T6767]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.150832][ T6767]  gfs2_fill_super+0x13c0/0x20d0
[  240.150862][ T6767]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.150887][ T6767]  ? sb_set_blocksize+0x104/0x180
[  240.150916][ T6767]  ? setup_bdev_super+0x4c1/0x5b0
[  240.150941][ T6767]  get_tree_bdev_flags+0x40e/0x4d0
[  240.150965][ T6767]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.150987][ T6767]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.151016][ T6767]  gfs2_get_tree+0x51/0x1e0
[  240.151040][ T6767]  vfs_get_tree+0x92/0x2b0
[  240.151064][ T6767]  do_new_mount+0x2a2/0xa30
[  240.151103][ T6767]  ? ns_capable+0x8a/0xf0
[  240.151130][ T6767]  ? __pfx_do_new_mount+0x10/0x10
[  240.151154][ T6767]  ? path_mount+0x61c/0xfe0
[  240.151177][ T6767]  ? user_path_at+0x44/0x60
[  240.151200][ T6767]  __se_sys_mount+0x317/0x410
[  240.151229][ T6767]  ? __pfx___se_sys_mount+0x10/0x10
[  240.151269][ T6767]  ? rcu_is_watching+0x15/0xb0
[  240.151296][ T6767]  ? __x64_sys_mount+0x20/0xc0
[  240.151321][ T6767]  do_syscall_64+0xfa/0xfa0
[  240.151346][ T6767]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.151366][ T6767]  ? clear_bhb_loop+0x60/0xb0
[  240.151388][ T6767]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.151407][ T6767] RIP: 0033:0x7f69ed19038a
[  240.151425][ T6767] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  240.151443][ T6767] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.151465][ T6767] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  240.151481][ T6767] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  240.151496][ T6767] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  240.151510][ T6767] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  240.151523][ T6767] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  240.151546][ T6767]  </TASK>
[  240.151567][ T6767] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.318714][   T31] INFO: task syz.0.17:6036 blocked for more than 143 seconds.
[  240.321760][ T6767] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.327807][   T31]       Not tainted syzkaller #0
[  240.492211][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  240.500967][   T31] task:syz.0.17        state:D stack:24424 pid:6036  tgid:6036  ppid:5974   task_flags:0x400140 flags:0x00004004
[  240.513629][   T31] Call Trace:
[  240.516973][   T31]  <TASK>
[  240.519924][   T31]  __schedule+0x1798/0x4cc0
[  240.524522][   T31]  ? __queue_work+0x102/0xfb0
[  240.529901][   T31]  ? preempt_schedule+0xae/0xc0
[  240.534851][   T31]  ? __pfx___schedule+0x10/0x10
[  240.542230][   T31]  ? do_raw_spin_lock+0x121/0x290
[  240.547991][   T31]  ? schedule+0x91/0x360
[  240.552991][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.557877][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.562676][   T31]  ? lock_release+0x4b/0x3e0
[  240.567981][   T31]  schedule+0x165/0x360
[  240.572166][   T31]  io_schedule+0x80/0xd0
[  240.576466][   T31]  folio_wait_bit_common+0x6b0/0xb90
[  240.581837][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.587315][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  240.593229][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  240.598883][   T31]  ? seqcount_lockdep_reader_access+0x175/0x1c0
[  240.605209][   T31]  ? unwind_next_frame+0xa5/0x2390
[  240.611072][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.615946][   T31]  ? unwind_next_frame+0xa5/0x2390
[  240.621080][   T31]  writeback_iter+0x8d8/0x12a0
[  240.626586][   T31]  iomap_writepages+0x14d/0x2d0
[  240.631468][   T31]  ? __pfx_iomap_writepages+0x10/0x10
[  240.637235][   T31]  ? folio_mark_accessed+0x42c/0x8b0
[  240.642560][   T31]  gfs2_writepages+0x177/0x250
[  240.648044][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  240.654148][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  240.659555][   T31]  do_writepages+0x32e/0x550
[  240.664176][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.669007][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  240.674294][   T31]  filemap_fdatawrite+0x199/0x240
[  240.679407][   T31]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  240.685057][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.689908][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  240.695235][   T31]  gfs2_log_flush+0x966/0x24c0
[  240.700084][   T31]  ? __pfx_gfs2_log_flush+0x10/0x10
[  240.705369][   T31]  ? __pfx___up_read+0x10/0x10
[  240.710251][   T31]  gfs2_trans_end+0x37c/0x570
[  240.714958][   T31]  gfs2_page_mkwrite+0x14a8/0x1910
[  240.720220][   T31]  ? do_page_mkwrite+0x14d/0x310
[  240.725198][   T31]  ? __pfx_gfs2_page_mkwrite+0x10/0x10
[  240.730756][   T31]  ? gfs2_fault+0x19a/0x1f0
[  240.735283][   T31]  ? do_page_mkwrite+0x14d/0x310
[  240.740288][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.745133][   T31]  do_page_mkwrite+0x14d/0x310
[  240.750303][   T31]  __handle_mm_fault+0x1916/0x5400
[  240.756278][   T31]  ? __pfx___handle_mm_fault+0x10/0x10
[  240.761774][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.766675][   T31]  ? lock_vma_under_rcu+0x3cb/0x450
[  240.771901][   T31]  ? __pfx_do_futex+0x10/0x10
[  240.776634][   T31]  ? __pfx_lock_vma_under_rcu+0x10/0x10
[  240.782369][   T31]  handle_mm_fault+0x40a/0x8e0
[  240.787193][   T31]  do_user_addr_fault+0xa81/0x1390
[  240.792335][   T31]  ? rcu_is_watching+0x15/0xb0
[  240.797282][   T31]  ? trace_page_fault_user+0x84/0x1e0
[  240.802691][   T31]  exc_page_fault+0x82/0x100
[  240.807421][   T31]  asm_exc_page_fault+0x26/0x30
[  240.808508][ T6770] loop1: detected capacity change from 0 to 32768
[  240.812296][   T31] RIP: 0033:0x7f35bb4550b3
[  240.823261][   T31] RSP: 002b:00007ffd5d4a11e0 EFLAGS: 00010246
[  240.829423][   T31] RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
[  240.837522][   T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055556b1ea3c8
[  240.839879][ T6770] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.845507][   T31] RBP: 00007ffd5d4a12e8 R08: 0000000000000000 R09: 0000000000000000
[  240.861432][   T31] R10: 0000000000000000 R11: 0000000000000000 R12: 00007f35bb7b5fac
[  240.869681][   T31] R13: 00007f35bb7b5fa0 R14: fffffffffffffffe R15: 0000000000000006
[  240.877794][   T31]  </TASK>
[  240.880976][   T31] INFO: lockdep is turned off.
[  240.885935][ T6770] CPU: 0 UID: 0 PID: 6770 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  240.885957][ T6770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.885967][ T6770] Call Trace:
[  240.885974][ T6770]  <TASK>
[  240.885981][ T6770]  dump_stack_lvl+0x189/0x250
[  240.886005][ T6770]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.886024][ T6770]  ? __pfx__printk+0x10/0x10
[  240.886046][ T6770]  ? kernfs_root+0x1c/0x230
[  240.886063][ T6770]  ? kernfs_path_from_node+0x250/0x290
[  240.886076][ T6770]  ? kernfs_path_from_node+0x2f/0x290
[  240.886099][ T6770]  sysfs_create_dir_ns+0x259/0x280
[  240.886124][ T6770]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.886148][ T6770]  ? do_raw_spin_unlock+0x122/0x240
[  240.886167][ T6770]  kobject_add_internal+0x59f/0xb40
[  240.886192][ T6770]  kobject_init_and_add+0x125/0x190
[  240.886214][ T6770]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.886235][ T6770]  ? __raw_spin_lock_init+0x45/0x100
[  240.886252][ T6770]  ? __init_swait_queue_head+0xa9/0x150
[  240.886269][ T6770]  gfs2_sys_fs_add+0x234/0x450
[  240.886294][ T6770]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.886319][ T6770]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.886342][ T6770]  gfs2_fill_super+0x13c0/0x20d0
[  240.886366][ T6770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.886386][ T6770]  ? sb_set_blocksize+0x104/0x180
[  240.886408][ T6770]  ? setup_bdev_super+0x4c1/0x5b0
[  240.886428][ T6770]  get_tree_bdev_flags+0x40e/0x4d0
[  240.886447][ T6770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.886465][ T6770]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.886488][ T6770]  gfs2_get_tree+0x51/0x1e0
[  240.886506][ T6770]  vfs_get_tree+0x92/0x2b0
[  240.886525][ T6770]  do_new_mount+0x2a2/0xa30
[  240.886548][ T6770]  ? ns_capable+0x8a/0xf0
[  240.886570][ T6770]  ? __pfx_do_new_mount+0x10/0x10
[  240.886590][ T6770]  ? path_mount+0x61c/0xfe0
[  240.886608][ T6770]  ? user_path_at+0x44/0x60
[  240.886626][ T6770]  __se_sys_mount+0x317/0x410
[  240.886650][ T6770]  ? __pfx___se_sys_mount+0x10/0x10
[  240.886672][ T6770]  ? rcu_is_watching+0x15/0xb0
[  240.886694][ T6770]  ? __x64_sys_mount+0x20/0xc0
[  240.886716][ T6770]  do_syscall_64+0xfa/0xfa0
[  240.886736][ T6770]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.886751][ T6770]  ? clear_bhb_loop+0x60/0xb0
[  240.886769][ T6770]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.886784][ T6770] RIP: 0033:0x7f69ed19038a
[  240.886799][ T6770] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  240.886813][ T6770] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.886847][ T6770] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  240.886860][ T6770] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  240.886872][ T6770] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  240.886883][ T6770] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  240.886893][ T6770] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  240.886911][ T6770]  </TASK>
[  240.886932][ T6770] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.907661][   T31] NMI backtrace for cpu 1
[  240.907681][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  240.907707][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.907722][   T31] Call Trace:
[  240.907731][   T31]  <TASK>
[  240.907740][   T31]  dump_stack_lvl+0x189/0x250
[  240.907794][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.907821][   T31]  ? __pfx__printk+0x10/0x10
[  240.907870][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  240.907907][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  240.907942][   T31]  ? __pfx__printk+0x10/0x10
[  240.907975][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  240.908009][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  240.908046][   T31]  watchdog+0xf60/0xfa0
[  240.908076][   T31]  ? watchdog+0x1e2/0xfa0
[  240.908105][   T31]  kthread+0x711/0x8a0
[  240.908130][   T31]  ? __pfx_watchdog+0x10/0x10
[  240.908156][   T31]  ? __pfx_kthread+0x10/0x10
[  240.908180][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  240.908205][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  240.908230][   T31]  ? __pfx_kthread+0x10/0x10
[  240.908253][   T31]  ret_from_fork+0x47c/0x820
[  240.908288][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  240.908324][   T31]  ? __switch_to_asm+0x39/0x70
[  240.908355][   T31]  ? __switch_to_asm+0x33/0x70
[  240.908395][   T31]  ? __pfx_kthread+0x10/0x10
[  240.908419][   T31]  ret_from_fork_asm+0x1a/0x30
[  240.908457][   T31]  </TASK>
[  240.908466][   T31] Sending NMI from CPU 1 to CPUs 0:
[  240.915436][ T6770] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.917219][    C0] NMI backtrace for cpu 0
[  240.917232][    C0] CPU: 0 UID: 0 PID: 6770 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  240.917250][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.917260][    C0] RIP: 0010:io_serial_out+0x7c/0xc0
[  240.917281][    C0] Code: 6d 6d fc 44 89 f9 d3 e5 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 fc 16 d1 fc 41 03 2e 89 d8 89 ea ee <5b> 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc 44 89 f9 80 e1 07 38 c1
[  240.917296][    C0] RSP: 0018:ffffc900047072b0 EFLAGS: 00000006
[  240.917310][    C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  240.917320][    C0] RDX: 00000000000003f9 RSI: 0000000000000000 RDI: 0000000000000020
[  240.917330][    C0] RBP: 00000000000003f9 R08: 0000000000000003 R09: 0000000000000004
[  240.917340][    C0] R10: dffffc0000000000 R11: ffffffff85532130 R12: dffffc0000000000
[  240.917353][    C0] R13: dffffc0000000000 R14: ffffffff9a00af20 R15: 0000000000000000
[  240.917365][    C0] FS:  000055558f2e3500(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000
[  240.917379][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  240.917390][    C0] CR2: 000055558f2e3808 CR3: 000000005afba000 CR4: 00000000003526f0
[  240.917405][    C0] Call Trace:
[  240.917411][    C0]  <TASK>
[  240.917419][    C0]  serial8250_console_write+0x5f2/0x1ba0
[  240.917439][    C0]  ? format_decode+0xd9/0xe30
[  240.917464][    C0]  ? __pfx_serial8250_console_write+0x10/0x10
[  240.917481][    C0]  ? console_flush_all+0x13a/0xc40
[  240.917497][    C0]  ? rcu_is_watching+0x15/0xb0
[  240.917520][    C0]  ? lock_acquire+0x5f/0x360
[  240.917541][    C0]  ? do_raw_spin_unlock+0x122/0x240
[  240.917557][    C0]  ? console_flush_all+0x13a/0xc40
[  240.917571][    C0]  ? console_flush_all+0x13a/0xc40
[  240.917587][    C0]  console_flush_all+0x725/0xc40
[  240.917603][    C0]  ? console_flush_all+0x13a/0xc40
[  240.917621][    C0]  ? __pfx_console_flush_all+0x10/0x10
[  240.917637][    C0]  ? vprintk_emit+0x63e/0x7a0
[  240.917662][    C0]  ? is_printk_cpu_sync_owner+0x32/0x40
[  240.917682][    C0]  console_unlock+0xc4/0x270
[  240.917706][    C0]  ? __pfx_console_unlock+0x10/0x10
[  240.917728][    C0]  ? vprintk_emit+0x440/0x7a0
[  240.917751][    C0]  ? vprintk_emit+0x587/0x7a0
[  240.917773][    C0]  ? vprintk_emit+0x444/0x7a0
[  240.917794][    C0]  ? vprintk_emit+0x444/0x7a0
[  240.917818][    C0]  vprintk_emit+0x5b7/0x7a0
[  240.917841][    C0]  ? vprintk_emit+0x444/0x7a0
[  240.917864][    C0]  ? __pfx_vprintk_emit+0x10/0x10
[  240.917888][    C0]  ? kobject_put+0x43f/0x480
[  240.917906][    C0]  ? kobj_kset_leave+0x163/0x190
[  240.917927][    C0]  ? kobject_add_internal+0x873/0xb40
[  240.917949][    C0]  _printk+0xcf/0x120
[  240.917973][    C0]  ? __pfx__printk+0x10/0x10
[  240.917994][    C0]  ? __raw_spin_lock_init+0x45/0x100
[  240.918010][    C0]  ? __init_swait_queue_head+0xa9/0x150
[  240.918027][    C0]  gfs2_sys_fs_add+0x39c/0x450
[  240.918051][    C0]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.918083][    C0]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.918106][    C0]  gfs2_fill_super+0x13c0/0x20d0
[  240.918130][    C0]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.918149][    C0]  ? sb_set_blocksize+0x104/0x180
[  240.918171][    C0]  ? setup_bdev_super+0x4c1/0x5b0
[  240.918209][    C0]  get_tree_bdev_flags+0x40e/0x4d0
[  240.918229][    C0]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.918247][    C0]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.918271][    C0]  gfs2_get_tree+0x51/0x1e0
[  240.918290][    C0]  vfs_get_tree+0x92/0x2b0
[  240.918310][    C0]  do_new_mount+0x2a2/0xa30
[  240.918333][    C0]  ? ns_capable+0x8a/0xf0
[  240.918357][    C0]  ? __pfx_do_new_mount+0x10/0x10
[  240.918377][    C0]  ? path_mount+0x61c/0xfe0
[  240.918397][    C0]  ? user_path_at+0x44/0x60
[  240.918415][    C0]  __se_sys_mount+0x317/0x410
[  240.918439][    C0]  ? __pfx___se_sys_mount+0x10/0x10
[  240.918462][    C0]  ? rcu_is_watching+0x15/0xb0
[  240.918485][    C0]  ? __x64_sys_mount+0x20/0xc0
[  240.918507][    C0]  do_syscall_64+0xfa/0xfa0
[  240.918528][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.918544][    C0]  ? clear_bhb_loop+0x60/0xb0
[  240.918563][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.918579][    C0] RIP: 0033:0x7f69ed19038a
[  240.918593][    C0] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  240.918608][    C0] RSP: 002b:00007ffd0404eb28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.918625][    C0] RAX: ffffffffffffffda RBX: 00007ffd0404ebb0 RCX: 00007f69ed19038a
[  240.918637][    C0] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffd0404eb70
[  240.918649][    C0] RBP: 000020000001f680 R08: 00007ffd0404ebb0 R09: 0000000000000094
[  240.918673][    C0] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  240.918684][    C0] R13: 00007ffd0404eb70 R14: 000000000001f790 R15: 00002000000001c0
[  240.918702][    C0]  </TASK>
[  240.919246][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  240.919265][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  240.919289][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.919302][   T31] Call Trace:
[  240.919311][   T31]  <TASK>
[  240.919320][   T31]  dump_stack_lvl+0x99/0x250
[  240.919346][   T31]  ? __asan_memcpy+0x40/0x70
[  240.919367][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.919393][   T31]  ? __pfx__printk+0x10/0x10
[  240.919427][   T31]  vpanic+0x281/0x750
[  240.919455][   T31]  ? __pfx_vpanic+0x10/0x10
[  240.919477][   T31]  ? preempt_schedule+0xae/0xc0
[  240.919501][   T31]  ? preempt_schedule_common+0x83/0xd0
[  240.919528][   T31]  panic+0xb9/0xc0
[  240.919551][   T31]  ? __pfx_panic+0x10/0x10
[  240.919576][   T31]  ? preempt_schedule_thunk+0x16/0x30
[  240.919599][   T31]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  240.919633][   T31]  watchdog+0xf9f/0xfa0
[  240.919662][   T31]  ? watchdog+0x1e2/0xfa0
[  240.919688][   T31]  kthread+0x711/0x8a0
[  240.919712][   T31]  ? __pfx_watchdog+0x10/0x10
[  240.919735][   T31]  ? __pfx_kthread+0x10/0x10
[  240.919757][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  240.919780][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  240.919804][   T31]  ? __pfx_kthread+0x10/0x10
[  240.919832][   T31]  ret_from_fork+0x47c/0x820
[  240.919864][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  240.919897][   T31]  ? __switch_to_asm+0x39/0x70
[  240.919925][   T31]  ? __switch_to_asm+0x33/0x70
[  240.919952][   T31]  ? __pfx_kthread+0x10/0x10
[  240.919974][   T31]  ret_from_fork_asm+0x1a/0x30
[  240.920010][   T31]  </TASK>
[  240.924300][   T31] Kernel Offset: disabled