450
[  250.602740][ T6717]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  250.602765][ T6717]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  250.602789][ T6717]  gfs2_fill_super+0x13c0/0x20d0
[  250.602812][ T6717]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.602831][ T6717]  ? sb_set_blocksize+0x104/0x180
[  250.602851][ T6717]  ? setup_bdev_super+0x4c1/0x5b0
[  250.602870][ T6717]  get_tree_bdev_flags+0x40e/0x4d0
[  250.602890][ T6717]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.602908][ T6717]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.602931][ T6717]  gfs2_get_tree+0x51/0x1e0
[  250.602949][ T6717]  vfs_get_tree+0x92/0x2b0
[  250.602968][ T6717]  do_new_mount+0x2a2/0xa30
[  250.602989][ T6717]  ? ns_capable+0x8a/0xf0
[  250.603011][ T6717]  ? __pfx_do_new_mount+0x10/0x10
[  250.603030][ T6717]  ? path_mount+0x61c/0xfe0
[  250.603047][ T6717]  ? user_path_at+0x44/0x60
[  250.603066][ T6717]  __se_sys_mount+0x317/0x410
[  250.603088][ T6717]  ? __pfx___se_sys_mount+0x10/0x10
[  250.603109][ T6717]  ? rcu_is_watching+0x15/0xb0
[  250.603129][ T6717]  ? __x64_sys_mount+0x20/0xc0
[  250.603150][ T6717]  do_syscall_64+0xfa/0xfa0
[  250.603170][ T6717]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.603187][ T6717]  ? clear_bhb_loop+0x60/0xb0
[  250.603204][ T6717]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.603221][ T6717] RIP: 0033:0x7f6a6df9038a
[  250.603236][ T6717] 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
[  250.603252][ T6717] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.603272][ T6717] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  250.603286][ T6717] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  250.603299][ T6717] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  250.603311][ T6717] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  250.603323][ T6717] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  250.603359][ T6717]  </TASK>
[  250.603377][ T6717] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.917683][ T6717] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.126723][ T6720] loop1: detected capacity change from 0 to 32768
[  251.138153][ T6720] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.147958][ T6720] CPU: 1 UID: 0 PID: 6720 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT(full) 
[  251.147983][ T6720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  251.147994][ T6720] Call Trace:
[  251.148002][ T6720]  <TASK>
[  251.148008][ T6720]  dump_stack_lvl+0x189/0x250
[  251.148033][ T6720]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.148051][ T6720]  ? __pfx__printk+0x10/0x10
[  251.148070][ T6720]  ? kernfs_root+0x1c/0x230
[  251.148085][ T6720]  ? kernfs_path_from_node+0x250/0x290
[  251.148100][ T6720]  ? kernfs_path_from_node+0x2f/0x290
[  251.148116][ T6720]  sysfs_create_dir_ns+0x259/0x280
[  251.148139][ T6720]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  251.148162][ T6720]  ? do_raw_spin_unlock+0x122/0x240
[  251.148179][ T6720]  kobject_add_internal+0x59f/0xb40
[  251.148203][ T6720]  kobject_init_and_add+0x125/0x190
[  251.148225][ T6720]  ? __pfx_kobject_init_and_add+0x10/0x10
[  251.148243][ T6720]  ? __raw_spin_lock_init+0x45/0x100
[  251.148259][ T6720]  ? __init_swait_queue_head+0xa9/0x150
[  251.148276][ T6720]  gfs2_sys_fs_add+0x234/0x450
[  251.148297][ T6720]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  251.148322][ T6720]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  251.148345][ T6720]  gfs2_fill_super+0x13c0/0x20d0
[  251.148368][ T6720]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.148385][ T6720]  ? sb_set_blocksize+0x104/0x180
[  251.148406][ T6720]  ? setup_bdev_super+0x4c1/0x5b0
[  251.148424][ T6720]  get_tree_bdev_flags+0x40e/0x4d0
[  251.148442][ T6720]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.148459][ T6720]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  251.148480][ T6720]  gfs2_get_tree+0x51/0x1e0
[  251.148498][ T6720]  vfs_get_tree+0x92/0x2b0
[  251.148516][ T6720]  do_new_mount+0x2a2/0xa30
[  251.148548][ T6720]  ? ns_capable+0x8a/0xf0
[  251.148570][ T6720]  ? __pfx_do_new_mount+0x10/0x10
[  251.148589][ T6720]  ? path_mount+0x61c/0xfe0
[  251.148606][ T6720]  ? user_path_at+0x44/0x60
[  251.148624][ T6720]  __se_sys_mount+0x317/0x410
[  251.148646][ T6720]  ? __pfx___se_sys_mount+0x10/0x10
[  251.148667][ T6720]  ? rcu_is_watching+0x15/0xb0
[  251.148688][ T6720]  ? __x64_sys_mount+0x20/0xc0
[  251.148708][ T6720]  do_syscall_64+0xfa/0xfa0
[  251.148727][ T6720]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.148744][ T6720]  ? clear_bhb_loop+0x60/0xb0
[  251.148761][ T6720]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.148776][ T6720] RIP: 0033:0x7f6a6df9038a
[  251.148791][ T6720] 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
[  251.148806][ T6720] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.148825][ T6720] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  251.148837][ T6720] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  251.148850][ T6720] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  251.148861][ T6720] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  251.148873][ T6720] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  251.148891][ T6720]  </TASK>
[  251.148909][ T6720] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  251.463251][ T6720] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  251.672412][ T6723] loop1: detected capacity change from 0 to 32768
[  251.683809][ T6723] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  251.691534][ T6723] CPU: 1 UID: 0 PID: 6723 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT(full) 
[  251.691555][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  251.691566][ T6723] Call Trace:
[  251.691573][ T6723]  <TASK>
[  251.691579][ T6723]  dump_stack_lvl+0x189/0x250
[  251.691605][ T6723]  ? __pfx_dump_stack_lvl+0x10/0x10
[  251.691624][ T6723]  ? __pfx__printk+0x10/0x10
[  251.691643][ T6723]  ? kernfs_root+0x1c/0x230
[  251.691659][ T6723]  ? kernfs_path_from_node+0x250/0x290
[  251.691673][ T6723]  ? kernfs_path_from_node+0x2f/0x290
[  251.691689][ T6723]  sysfs_create_dir_ns+0x259/0x280
[  251.691712][ T6723]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  251.691733][ T6723]  ? do_raw_spin_unlock+0x122/0x240
[  251.691751][ T6723]  kobject_add_internal+0x59f/0xb40
[  251.691775][ T6723]  kobject_init_and_add+0x125/0x190
[  251.691797][ T6723]  ? __pfx_kobject_init_and_add+0x10/0x10
[  251.691817][ T6723]  ? __raw_spin_lock_init+0x45/0x100
[  251.691834][ T6723]  ? __init_swait_queue_head+0xa9/0x150
[  251.691851][ T6723]  gfs2_sys_fs_add+0x234/0x450
[  251.691872][ T6723]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  251.691895][ T6723]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  251.691917][ T6723]  gfs2_fill_super+0x13c0/0x20d0
[  251.691939][ T6723]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.691958][ T6723]  ? sb_set_blocksize+0x104/0x180
[  251.691979][ T6723]  ? setup_bdev_super+0x4c1/0x5b0
[  251.691997][ T6723]  get_tree_bdev_flags+0x40e/0x4d0
[  251.692015][ T6723]  ? __pfx_gfs2_fill_super+0x10/0x10
[  251.692033][ T6723]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  251.692055][ T6723]  gfs2_get_tree+0x51/0x1e0
[  251.692073][ T6723]  vfs_get_tree+0x92/0x2b0
[  251.692154][ T6723]  do_new_mount+0x2a2/0xa30
[  251.692175][ T6723]  ? ns_capable+0x8a/0xf0
[  251.692196][ T6723]  ? __pfx_do_new_mount+0x10/0x10
[  251.692214][ T6723]  ? path_mount+0x61c/0xfe0
[  251.692231][ T6723]  ? user_path_at+0x44/0x60
[  251.692249][ T6723]  __se_sys_mount+0x317/0x410
[  251.692280][ T6723]  ? __pfx___se_sys_mount+0x10/0x10
[  251.692307][ T6723]  ? rcu_is_watching+0x15/0xb0
[  251.692328][ T6723]  ? __x64_sys_mount+0x20/0xc0
[  251.692348][ T6723]  do_syscall_64+0xfa/0xfa0
[  251.692368][ T6723]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.692385][ T6723]  ? clear_bhb_loop+0x60/0xb0
[  251.692403][ T6723]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  251.692418][ T6723] RIP: 0033:0x7f6a6df9038a
[  251.692434][ T6723] 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
[  251.692449][ T6723] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  251.692468][ T6723] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  251.692481][ T6723] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  251.692494][ T6723] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  251.692506][ T6723] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  251.692517][ T6723] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  251.692534][ T6723]  </TASK>
[  251.692551][ T6723] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.006625][ T6723] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 22:15:58 executed programs: 219
[  252.222632][ T6726] loop1: detected capacity change from 0 to 32768
[  252.236691][ T6726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.244674][ T6726] CPU: 0 UID: 0 PID: 6726 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  252.244702][ T6726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  252.244712][ T6726] Call Trace:
[  252.244719][ T6726]  <TASK>
[  252.244726][ T6726]  dump_stack_lvl+0x189/0x250
[  252.244751][ T6726]  ? __pfx_dump_stack_lvl+0x10/0x10
[  252.244768][ T6726]  ? __pfx__printk+0x10/0x10
[  252.244787][ T6726]  ? kernfs_root+0x1c/0x230
[  252.244803][ T6726]  ? kernfs_path_from_node+0x250/0x290
[  252.244818][ T6726]  ? kernfs_path_from_node+0x2f/0x290
[  252.244834][ T6726]  sysfs_create_dir_ns+0x259/0x280
[  252.244857][ T6726]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.244878][ T6726]  ? do_raw_spin_unlock+0x122/0x240
[  252.244897][ T6726]  kobject_add_internal+0x59f/0xb40
[  252.244921][ T6726]  kobject_init_and_add+0x125/0x190
[  252.244942][ T6726]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.244962][ T6726]  ? __raw_spin_lock_init+0x45/0x100
[  252.244979][ T6726]  ? __init_swait_queue_head+0xa9/0x150
[  252.244995][ T6726]  gfs2_sys_fs_add+0x234/0x450
[  252.245017][ T6726]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.245041][ T6726]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.245064][ T6726]  gfs2_fill_super+0x13c0/0x20d0
[  252.245086][ T6726]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.245104][ T6726]  ? sb_set_blocksize+0x104/0x180
[  252.245123][ T6726]  ? setup_bdev_super+0x4c1/0x5b0
[  252.245142][ T6726]  get_tree_bdev_flags+0x40e/0x4d0
[  252.245160][ T6726]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.245177][ T6726]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.245199][ T6726]  gfs2_get_tree+0x51/0x1e0
[  252.245226][ T6726]  vfs_get_tree+0x92/0x2b0
[  252.245246][ T6726]  do_new_mount+0x2a2/0xa30
[  252.245266][ T6726]  ? ns_capable+0x8a/0xf0
[  252.245286][ T6726]  ? __pfx_do_new_mount+0x10/0x10
[  252.245304][ T6726]  ? path_mount+0x61c/0xfe0
[  252.245321][ T6726]  ? user_path_at+0x44/0x60
[  252.245340][ T6726]  __se_sys_mount+0x317/0x410
[  252.245363][ T6726]  ? __pfx___se_sys_mount+0x10/0x10
[  252.245384][ T6726]  ? rcu_is_watching+0x15/0xb0
[  252.245405][ T6726]  ? __x64_sys_mount+0x20/0xc0
[  252.245425][ T6726]  do_syscall_64+0xfa/0xfa0
[  252.245443][ T6726]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.245459][ T6726]  ? clear_bhb_loop+0x60/0xb0
[  252.245476][ T6726]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.245490][ T6726] RIP: 0033:0x7f6a6df9038a
[  252.245506][ T6726] 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
[  252.245522][ T6726] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.245540][ T6726] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  252.245553][ T6726] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  252.245565][ T6726] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  252.245577][ T6726] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  252.245588][ T6726] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  252.245606][ T6726]  </TASK>
[  252.245648][ T6726] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.558895][ T6726] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.770727][ T6729] loop1: detected capacity change from 0 to 32768
[  252.780914][ T6729] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.792557][ T6729] CPU: 0 UID: 0 PID: 6729 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT(full) 
[  252.792581][ T6729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  252.792592][ T6729] Call Trace:
[  252.792600][ T6729]  <TASK>
[  252.792607][ T6729]  dump_stack_lvl+0x189/0x250
[  252.792633][ T6729]  ? __pfx_dump_stack_lvl+0x10/0x10
[  252.792652][ T6729]  ? __pfx__printk+0x10/0x10
[  252.792671][ T6729]  ? kernfs_root+0x1c/0x230
[  252.792689][ T6729]  ? kernfs_path_from_node+0x250/0x290
[  252.792704][ T6729]  ? kernfs_path_from_node+0x2f/0x290
[  252.792720][ T6729]  sysfs_create_dir_ns+0x259/0x280
[  252.792743][ T6729]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.792766][ T6729]  ? do_raw_spin_unlock+0x122/0x240
[  252.792785][ T6729]  kobject_add_internal+0x59f/0xb40
[  252.792810][ T6729]  kobject_init_and_add+0x125/0x190
[  252.792832][ T6729]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.792851][ T6729]  ? __raw_spin_lock_init+0x45/0x100
[  252.792869][ T6729]  ? __init_swait_queue_head+0xa9/0x150
[  252.792886][ T6729]  gfs2_sys_fs_add+0x234/0x450
[  252.792910][ T6729]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.792934][ T6729]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.792958][ T6729]  gfs2_fill_super+0x13c0/0x20d0
[  252.792983][ T6729]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.793002][ T6729]  ? sb_set_blocksize+0x104/0x180
[  252.793023][ T6729]  ? setup_bdev_super+0x4c1/0x5b0
[  252.793042][ T6729]  get_tree_bdev_flags+0x40e/0x4d0
[  252.793061][ T6729]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.793079][ T6729]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.793102][ T6729]  gfs2_get_tree+0x51/0x1e0
[  252.793121][ T6729]  vfs_get_tree+0x92/0x2b0
[  252.793140][ T6729]  do_new_mount+0x2a2/0xa30
[  252.793161][ T6729]  ? ns_capable+0x8a/0xf0
[  252.793182][ T6729]  ? __pfx_do_new_mount+0x10/0x10
[  252.793200][ T6729]  ? path_mount+0x61c/0xfe0
[  252.793219][ T6729]  ? user_path_at+0x44/0x60
[  252.793238][ T6729]  __se_sys_mount+0x317/0x410
[  252.793260][ T6729]  ? __pfx___se_sys_mount+0x10/0x10
[  252.793281][ T6729]  ? rcu_is_watching+0x15/0xb0
[  252.793302][ T6729]  ? __x64_sys_mount+0x20/0xc0
[  252.793323][ T6729]  do_syscall_64+0xfa/0xfa0
[  252.793342][ T6729]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.793358][ T6729]  ? clear_bhb_loop+0x60/0xb0
[  252.793382][ T6729]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.793399][ T6729] RIP: 0033:0x7f6a6df9038a
[  252.793414][ T6729] 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
[  252.793429][ T6729] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.793449][ T6729] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  252.793462][ T6729] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  252.793475][ T6729] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  252.793488][ T6729] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  252.793500][ T6729] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  252.793519][ T6729]  </TASK>
[  252.793537][ T6729] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  253.109300][ T6729] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.316208][ T6732] loop1: detected capacity change from 0 to 32768
[  253.330339][ T6732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.337752][ T6732] CPU: 0 UID: 0 PID: 6732 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full) 
[  253.337773][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  253.337784][ T6732] Call Trace:
[  253.337791][ T6732]  <TASK>
[  253.337797][ T6732]  dump_stack_lvl+0x189/0x250
[  253.337822][ T6732]  ? __pfx_dump_stack_lvl+0x10/0x10
[  253.337841][ T6732]  ? __pfx__printk+0x10/0x10
[  253.337861][ T6732]  ? kernfs_root+0x1c/0x230
[  253.337876][ T6732]  ? kernfs_path_from_node+0x250/0x290
[  253.337886][ T6732]  ? kernfs_path_from_node+0x2f/0x290
[  253.337900][ T6732]  sysfs_create_dir_ns+0x259/0x280
[  253.337919][ T6732]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.337939][ T6732]  ? do_raw_spin_unlock+0x122/0x240
[  253.337955][ T6732]  kobject_add_internal+0x59f/0xb40
[  253.337978][ T6732]  kobject_init_and_add+0x125/0x190
[  253.337999][ T6732]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.338018][ T6732]  ? __raw_spin_lock_init+0x45/0x100
[  253.338035][ T6732]  ? __init_swait_queue_head+0xa9/0x150
[  253.338053][ T6732]  gfs2_sys_fs_add+0x234/0x450
[  253.338075][ T6732]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.338099][ T6732]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.338122][ T6732]  gfs2_fill_super+0x13c0/0x20d0
[  253.338144][ T6732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.338163][ T6732]  ? sb_set_blocksize+0x104/0x180
[  253.338185][ T6732]  ? setup_bdev_super+0x4c1/0x5b0
[  253.338205][ T6732]  get_tree_bdev_flags+0x40e/0x4d0
[  253.338225][ T6732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.338243][ T6732]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.338266][ T6732]  gfs2_get_tree+0x51/0x1e0
[  253.338284][ T6732]  vfs_get_tree+0x92/0x2b0
[  253.338302][ T6732]  do_new_mount+0x2a2/0xa30
[  253.338330][ T6732]  ? ns_capable+0x8a/0xf0
[  253.338350][ T6732]  ? __pfx_do_new_mount+0x10/0x10
[  253.338369][ T6732]  ? path_mount+0x61c/0xfe0
[  253.338384][ T6732]  ? user_path_at+0x44/0x60
[  253.338400][ T6732]  __se_sys_mount+0x317/0x410
[  253.338421][ T6732]  ? __pfx___se_sys_mount+0x10/0x10
[  253.338439][ T6732]  ? rcu_is_watching+0x15/0xb0
[  253.338459][ T6732]  ? __x64_sys_mount+0x20/0xc0
[  253.338479][ T6732]  do_syscall_64+0xfa/0xfa0
[  253.338499][ T6732]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.338515][ T6732]  ? clear_bhb_loop+0x60/0xb0
[  253.338533][ T6732]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.338550][ T6732] RIP: 0033:0x7f6a6df9038a
[  253.338565][ 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
[  253.338580][ T6732] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.338599][ T6732] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  253.338612][ T6732] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  253.338625][ T6732] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  253.338637][ T6732] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  253.338648][ T6732] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  253.338666][ T6732]  </TASK>
[  253.338683][ 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.
[  253.652355][ T6732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.859681][ T6735] loop1: detected capacity change from 0 to 32768
[  253.873028][ T6735] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.880748][ T6735] CPU: 0 UID: 0 PID: 6735 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT(full) 
[  253.880770][ T6735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  253.880781][ T6735] Call Trace:
[  253.880787][ T6735]  <TASK>
[  253.880794][ T6735]  dump_stack_lvl+0x189/0x250
[  253.880819][ T6735]  ? __pfx_dump_stack_lvl+0x10/0x10
[  253.880838][ T6735]  ? __pfx__printk+0x10/0x10
[  253.880856][ T6735]  ? kernfs_root+0x1c/0x230
[  253.880874][ T6735]  ? kernfs_path_from_node+0x250/0x290
[  253.880889][ T6735]  ? kernfs_path_from_node+0x2f/0x290
[  253.880906][ T6735]  sysfs_create_dir_ns+0x259/0x280
[  253.880928][ T6735]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.880950][ T6735]  ? do_raw_spin_unlock+0x122/0x240
[  253.880969][ T6735]  kobject_add_internal+0x59f/0xb40
[  253.880991][ T6735]  kobject_init_and_add+0x125/0x190
[  253.881012][ T6735]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.881031][ T6735]  ? __raw_spin_lock_init+0x45/0x100
[  253.881059][ T6735]  ? __init_swait_queue_head+0xa9/0x150
[  253.881076][ T6735]  gfs2_sys_fs_add+0x234/0x450
[  253.881098][ T6735]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.881122][ T6735]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.881144][ T6735]  gfs2_fill_super+0x13c0/0x20d0
[  253.881167][ T6735]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.881184][ T6735]  ? sb_set_blocksize+0x104/0x180
[  253.881205][ T6735]  ? setup_bdev_super+0x4c1/0x5b0
[  253.881225][ T6735]  get_tree_bdev_flags+0x40e/0x4d0
[  253.881242][ T6735]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.881259][ T6735]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.881281][ T6735]  gfs2_get_tree+0x51/0x1e0
[  253.881297][ T6735]  vfs_get_tree+0x92/0x2b0
[  253.881315][ T6735]  do_new_mount+0x2a2/0xa30
[  253.881337][ T6735]  ? ns_capable+0x8a/0xf0
[  253.881357][ T6735]  ? __pfx_do_new_mount+0x10/0x10
[  253.881374][ T6735]  ? path_mount+0x61c/0xfe0
[  253.881392][ T6735]  ? user_path_at+0x44/0x60
[  253.881411][ T6735]  __se_sys_mount+0x317/0x410
[  253.881434][ T6735]  ? __pfx___se_sys_mount+0x10/0x10
[  253.881455][ T6735]  ? rcu_is_watching+0x15/0xb0
[  253.881475][ T6735]  ? __x64_sys_mount+0x20/0xc0
[  253.881495][ T6735]  do_syscall_64+0xfa/0xfa0
[  253.881513][ T6735]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.881529][ T6735]  ? clear_bhb_loop+0x60/0xb0
[  253.881547][ T6735]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.881561][ T6735] RIP: 0033:0x7f6a6df9038a
[  253.881577][ T6735] 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
[  253.881592][ T6735] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.881610][ T6735] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  253.881622][ T6735] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  253.881634][ T6735] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  253.881646][ T6735] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  253.881657][ T6735] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  253.881676][ T6735]  </TASK>
[  253.881695][ T6735] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.195277][ T6735] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.401020][ T6738] loop1: detected capacity change from 0 to 32768
[  254.411169][ T6738] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.422515][ T6738] CPU: 0 UID: 0 PID: 6738 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  254.422539][ T6738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  254.422549][ T6738] Call Trace:
[  254.422556][ T6738]  <TASK>
[  254.422564][ T6738]  dump_stack_lvl+0x189/0x250
[  254.422589][ T6738]  ? __pfx_dump_stack_lvl+0x10/0x10
[  254.422607][ T6738]  ? __pfx__printk+0x10/0x10
[  254.422626][ T6738]  ? kernfs_root+0x1c/0x230
[  254.422643][ T6738]  ? kernfs_path_from_node+0x250/0x290
[  254.422657][ T6738]  ? kernfs_path_from_node+0x2f/0x290
[  254.422675][ T6738]  sysfs_create_dir_ns+0x259/0x280
[  254.422698][ T6738]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.422721][ T6738]  ? do_raw_spin_unlock+0x122/0x240
[  254.422739][ T6738]  kobject_add_internal+0x59f/0xb40
[  254.422763][ T6738]  kobject_init_and_add+0x125/0x190
[  254.422784][ T6738]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.422804][ T6738]  ? __raw_spin_lock_init+0x45/0x100
[  254.422821][ T6738]  ? __init_swait_queue_head+0xa9/0x150
[  254.422837][ T6738]  gfs2_sys_fs_add+0x234/0x450
[  254.422859][ T6738]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.422883][ T6738]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.422907][ T6738]  gfs2_fill_super+0x13c0/0x20d0
[  254.422949][ T6738]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.422967][ T6738]  ? sb_set_blocksize+0x104/0x180
[  254.422988][ T6738]  ? setup_bdev_super+0x4c1/0x5b0
[  254.423006][ T6738]  get_tree_bdev_flags+0x40e/0x4d0
[  254.423024][ T6738]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.423040][ T6738]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.423061][ T6738]  gfs2_get_tree+0x51/0x1e0
[  254.423079][ T6738]  vfs_get_tree+0x92/0x2b0
[  254.423097][ T6738]  do_new_mount+0x2a2/0xa30
[  254.423118][ T6738]  ? ns_capable+0x8a/0xf0
[  254.423139][ T6738]  ? __pfx_do_new_mount+0x10/0x10
[  254.423157][ T6738]  ? path_mount+0x61c/0xfe0
[  254.423182][ T6738]  ? user_path_at+0x44/0x60
[  254.423202][ T6738]  __se_sys_mount+0x317/0x410
[  254.423223][ T6738]  ? __pfx___se_sys_mount+0x10/0x10
[  254.423244][ T6738]  ? rcu_is_watching+0x15/0xb0
[  254.423265][ T6738]  ? __x64_sys_mount+0x20/0xc0
[  254.423285][ T6738]  do_syscall_64+0xfa/0xfa0
[  254.423305][ T6738]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.423322][ T6738]  ? clear_bhb_loop+0x60/0xb0
[  254.423340][ T6738]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.423356][ T6738] RIP: 0033:0x7f6a6df9038a
[  254.423371][ T6738] 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
[  254.423386][ T6738] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.423404][ T6738] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  254.423417][ T6738] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  254.423429][ T6738] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  254.423442][ T6738] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  254.423453][ T6738] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  254.423472][ T6738]  </TASK>
[  254.423490][ T6738] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.736866][ T6738] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.944743][ T6741] loop1: detected capacity change from 0 to 32768
[  254.964342][ T6741] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.971890][ T6741] CPU: 0 UID: 0 PID: 6741 Comm: syz.1.239 Not tainted syzkaller #0 PREEMPT(full) 
[  254.971913][ T6741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  254.971924][ T6741] Call Trace:
[  254.971930][ T6741]  <TASK>
[  254.971945][ T6741]  dump_stack_lvl+0x189/0x250
[  254.971970][ T6741]  ? __pfx_dump_stack_lvl+0x10/0x10
[  254.971989][ T6741]  ? __pfx__printk+0x10/0x10
[  254.972008][ T6741]  ? kernfs_root+0x1c/0x230
[  254.972025][ T6741]  ? kernfs_path_from_node+0x250/0x290
[  254.972039][ T6741]  ? kernfs_path_from_node+0x2f/0x290
[  254.972056][ T6741]  sysfs_create_dir_ns+0x259/0x280
[  254.972080][ T6741]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.972103][ T6741]  ? do_raw_spin_unlock+0x122/0x240
[  254.972120][ T6741]  kobject_add_internal+0x59f/0xb40
[  254.972142][ T6741]  kobject_init_and_add+0x125/0x190
[  254.972160][ T6741]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.972179][ T6741]  ? __raw_spin_lock_init+0x45/0x100
[  254.972195][ T6741]  ? __init_swait_queue_head+0xa9/0x150
[  254.972213][ T6741]  gfs2_sys_fs_add+0x234/0x450
[  254.972236][ T6741]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.972264][ T6741]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.972287][ T6741]  gfs2_fill_super+0x13c0/0x20d0
[  254.972311][ T6741]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.972330][ T6741]  ? sb_set_blocksize+0x104/0x180
[  254.972351][ T6741]  ? setup_bdev_super+0x4c1/0x5b0
[  254.972371][ T6741]  get_tree_bdev_flags+0x40e/0x4d0
[  254.972390][ T6741]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.972407][ T6741]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.972427][ T6741]  gfs2_get_tree+0x51/0x1e0
[  254.972445][ T6741]  vfs_get_tree+0x92/0x2b0
[  254.972464][ T6741]  do_new_mount+0x2a2/0xa30
[  254.972485][ T6741]  ? ns_capable+0x8a/0xf0
[  254.972506][ T6741]  ? __pfx_do_new_mount+0x10/0x10
[  254.972525][ T6741]  ? path_mount+0x61c/0xfe0
[  254.972542][ T6741]  ? user_path_at+0x44/0x60
[  254.972561][ T6741]  __se_sys_mount+0x317/0x410
[  254.972583][ T6741]  ? __pfx___se_sys_mount+0x10/0x10
[  254.972605][ T6741]  ? rcu_is_watching+0x15/0xb0
[  254.972626][ T6741]  ? __x64_sys_mount+0x20/0xc0
[  254.972646][ T6741]  do_syscall_64+0xfa/0xfa0
[  254.972665][ T6741]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.972680][ T6741]  ? clear_bhb_loop+0x60/0xb0
[  254.972706][ T6741]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.972722][ T6741] RIP: 0033:0x7f6a6df9038a
[  254.972738][ T6741] 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
[  254.972754][ T6741] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.972773][ T6741] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  254.972786][ T6741] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  254.972798][ T6741] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  254.972810][ T6741] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  254.972822][ T6741] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  254.972842][ T6741]  </TASK>
[  254.972866][ T6741] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.285746][ T6741] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.495159][ T6744] loop1: detected capacity change from 0 to 32768
[  255.509044][ T6744] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.517182][ T6744] CPU: 0 UID: 0 PID: 6744 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT(full) 
[  255.517205][ T6744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  255.517217][ T6744] Call Trace:
[  255.517224][ T6744]  <TASK>
[  255.517231][ T6744]  dump_stack_lvl+0x189/0x250
[  255.517256][ T6744]  ? __pfx_dump_stack_lvl+0x10/0x10
[  255.517275][ T6744]  ? __pfx__printk+0x10/0x10
[  255.517294][ T6744]  ? kernfs_root+0x1c/0x230
[  255.517312][ T6744]  ? kernfs_path_from_node+0x250/0x290
[  255.517326][ T6744]  ? kernfs_path_from_node+0x2f/0x290
[  255.517341][ T6744]  sysfs_create_dir_ns+0x259/0x280
[  255.517363][ T6744]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  255.517386][ T6744]  ? do_raw_spin_unlock+0x122/0x240
[  255.517406][ T6744]  kobject_add_internal+0x59f/0xb40
[  255.517431][ T6744]  kobject_init_and_add+0x125/0x190
[  255.517451][ T6744]  ? __pfx_kobject_init_and_add+0x10/0x10
[  255.517470][ T6744]  ? __raw_spin_lock_init+0x45/0x100
[  255.517486][ T6744]  ? __init_swait_queue_head+0xa9/0x150
[  255.517503][ T6744]  gfs2_sys_fs_add+0x234/0x450
[  255.517526][ T6744]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  255.517550][ T6744]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  255.517572][ T6744]  gfs2_fill_super+0x13c0/0x20d0
[  255.517595][ T6744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.517614][ T6744]  ? sb_set_blocksize+0x104/0x180
[  255.517636][ T6744]  ? setup_bdev_super+0x4c1/0x5b0
[  255.517656][ T6744]  get_tree_bdev_flags+0x40e/0x4d0
[  255.517674][ T6744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.517690][ T6744]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  255.517711][ T6744]  gfs2_get_tree+0x51/0x1e0
[  255.517728][ T6744]  vfs_get_tree+0x92/0x2b0
[  255.517746][ T6744]  do_new_mount+0x2a2/0xa30
[  255.517766][ T6744]  ? ns_capable+0x8a/0xf0
[  255.517787][ T6744]  ? __pfx_do_new_mount+0x10/0x10
[  255.517805][ T6744]  ? path_mount+0x61c/0xfe0
[  255.517822][ T6744]  ? user_path_at+0x44/0x60
[  255.517840][ T6744]  __se_sys_mount+0x317/0x410
[  255.517860][ T6744]  ? __pfx___se_sys_mount+0x10/0x10
[  255.517889][ T6744]  ? rcu_is_watching+0x15/0xb0
[  255.517910][ T6744]  ? __x64_sys_mount+0x20/0xc0
[  255.517929][ T6744]  do_syscall_64+0xfa/0xfa0
[  255.517948][ T6744]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.517964][ T6744]  ? clear_bhb_loop+0x60/0xb0
[  255.517983][ T6744]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.517999][ T6744] RIP: 0033:0x7f6a6df9038a
[  255.518015][ 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
[  255.518030][ T6744] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.518048][ T6744] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  255.518061][ T6744] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  255.518072][ T6744] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  255.518084][ T6744] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  255.518095][ T6744] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  255.518120][ T6744]  </TASK>
[  255.518138][ 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.
[  255.832438][ T6744] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.038443][ T6747] loop1: detected capacity change from 0 to 32768
[  256.050539][ T6747] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.058251][ T6747] CPU: 0 UID: 0 PID: 6747 Comm: syz.1.241 Not tainted syzkaller #0 PREEMPT(full) 
[  256.058274][ T6747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  256.058285][ T6747] Call Trace:
[  256.058292][ T6747]  <TASK>
[  256.058299][ T6747]  dump_stack_lvl+0x189/0x250
[  256.058323][ T6747]  ? __pfx_dump_stack_lvl+0x10/0x10
[  256.058340][ T6747]  ? __pfx__printk+0x10/0x10
[  256.058359][ T6747]  ? kernfs_root+0x1c/0x230
[  256.058375][ T6747]  ? kernfs_path_from_node+0x250/0x290
[  256.058389][ T6747]  ? kernfs_path_from_node+0x2f/0x290
[  256.058403][ T6747]  sysfs_create_dir_ns+0x259/0x280
[  256.058427][ T6747]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.058448][ T6747]  ? do_raw_spin_unlock+0x122/0x240
[  256.058465][ T6747]  kobject_add_internal+0x59f/0xb40
[  256.058489][ T6747]  kobject_init_and_add+0x125/0x190
[  256.058511][ T6747]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.058530][ T6747]  ? __raw_spin_lock_init+0x45/0x100
[  256.058548][ T6747]  ? __init_swait_queue_head+0xa9/0x150
[  256.058565][ T6747]  gfs2_sys_fs_add+0x234/0x450
[  256.058587][ T6747]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.058610][ T6747]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.058632][ T6747]  gfs2_fill_super+0x13c0/0x20d0
[  256.058654][ T6747]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.058672][ T6747]  ? sb_set_blocksize+0x104/0x180
[  256.058692][ T6747]  ? setup_bdev_super+0x4c1/0x5b0
[  256.058711][ T6747]  get_tree_bdev_flags+0x40e/0x4d0
[  256.058729][ T6747]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.058745][ T6747]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.058766][ T6747]  gfs2_get_tree+0x51/0x1e0
[  256.058783][ T6747]  vfs_get_tree+0x92/0x2b0
[  256.058802][ T6747]  do_new_mount+0x2a2/0xa30
[  256.058822][ T6747]  ? ns_capable+0x8a/0xf0
[  256.058842][ T6747]  ? __pfx_do_new_mount+0x10/0x10
[  256.058860][ T6747]  ? path_mount+0x61c/0xfe0
[  256.058878][ T6747]  ? user_path_at+0x44/0x60
[  256.058897][ T6747]  __se_sys_mount+0x317/0x410
[  256.058920][ T6747]  ? __pfx___se_sys_mount+0x10/0x10
[  256.058941][ T6747]  ? rcu_is_watching+0x15/0xb0
[  256.058962][ T6747]  ? __x64_sys_mount+0x20/0xc0
[  256.058981][ T6747]  do_syscall_64+0xfa/0xfa0
[  256.059009][ T6747]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.059024][ T6747]  ? clear_bhb_loop+0x60/0xb0
[  256.059041][ T6747]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.059058][ T6747] RIP: 0033:0x7f6a6df9038a
[  256.059074][ T6747] 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
[  256.059088][ T6747] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.059107][ T6747] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  256.059120][ T6747] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  256.059132][ T6747] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  256.059144][ T6747] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  256.059156][ T6747] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  256.059175][ T6747]  </TASK>
[  256.059193][ T6747] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.371975][ T6747] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.574852][ T6750] loop1: detected capacity change from 0 to 32768
[  256.593504][ T6750] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.601109][ T6750] CPU: 0 UID: 0 PID: 6750 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT(full) 
[  256.601134][ T6750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  256.601145][ T6750] Call Trace:
[  256.601152][ T6750]  <TASK>
[  256.601159][ T6750]  dump_stack_lvl+0x189/0x250
[  256.601185][ T6750]  ? __pfx_dump_stack_lvl+0x10/0x10
[  256.601203][ T6750]  ? __pfx__printk+0x10/0x10
[  256.601223][ T6750]  ? kernfs_root+0x1c/0x230
[  256.601240][ T6750]  ? kernfs_path_from_node+0x250/0x290
[  256.601255][ T6750]  ? kernfs_path_from_node+0x2f/0x290
[  256.601271][ T6750]  sysfs_create_dir_ns+0x259/0x280
[  256.601293][ T6750]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.601316][ T6750]  ? do_raw_spin_unlock+0x122/0x240
[  256.601335][ T6750]  kobject_add_internal+0x59f/0xb40
[  256.601358][ T6750]  kobject_init_and_add+0x125/0x190
[  256.601379][ T6750]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.601399][ T6750]  ? __raw_spin_lock_init+0x45/0x100
[  256.601416][ T6750]  ? __init_swait_queue_head+0xa9/0x150
[  256.601433][ T6750]  gfs2_sys_fs_add+0x234/0x450
[  256.601455][ T6750]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.601479][ T6750]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.601502][ T6750]  gfs2_fill_super+0x13c0/0x20d0
[  256.601525][ T6750]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.601544][ T6750]  ? sb_set_blocksize+0x104/0x180
[  256.601565][ T6750]  ? setup_bdev_super+0x4c1/0x5b0
[  256.601584][ T6750]  get_tree_bdev_flags+0x40e/0x4d0
[  256.601603][ T6750]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.601620][ T6750]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.601643][ T6750]  gfs2_get_tree+0x51/0x1e0
[  256.601661][ T6750]  vfs_get_tree+0x92/0x2b0
[  256.601680][ T6750]  do_new_mount+0x2a2/0xa30
[  256.601702][ T6750]  ? ns_capable+0x8a/0xf0
[  256.601723][ T6750]  ? __pfx_do_new_mount+0x10/0x10
[  256.601742][ T6750]  ? path_mount+0x61c/0xfe0
[  256.601760][ T6750]  ? user_path_at+0x44/0x60
[  256.601788][ T6750]  __se_sys_mount+0x317/0x410
[  256.601810][ T6750]  ? __pfx___se_sys_mount+0x10/0x10
[  256.601831][ T6750]  ? rcu_is_watching+0x15/0xb0
[  256.601851][ T6750]  ? __x64_sys_mount+0x20/0xc0
[  256.601871][ T6750]  do_syscall_64+0xfa/0xfa0
[  256.601891][ T6750]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.601907][ T6750]  ? clear_bhb_loop+0x60/0xb0
[  256.601924][ T6750]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.601940][ T6750] RIP: 0033:0x7f6a6df9038a
[  256.601956][ T6750] 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
[  256.601971][ T6750] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.601990][ T6750] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  256.602004][ T6750] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  256.602016][ T6750] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  256.602027][ T6750] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  256.602039][ T6750] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  256.602058][ T6750]  </TASK>
[  256.602077][ T6750] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.915720][ T6750] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.125752][ T6753] loop1: detected capacity change from 0 to 32768
[  257.136879][ T6753] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.145064][ T6753] CPU: 1 UID: 0 PID: 6753 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT(full) 
[  257.145086][ T6753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  257.145096][ T6753] Call Trace:
[  257.145104][ T6753]  <TASK>
[  257.145111][ T6753]  dump_stack_lvl+0x189/0x250
[  257.145135][ T6753]  ? __pfx_dump_stack_lvl+0x10/0x10
[  257.145154][ T6753]  ? __pfx__printk+0x10/0x10
[  257.145173][ T6753]  ? kernfs_root+0x1c/0x230
[  257.145190][ T6753]  ? kernfs_path_from_node+0x250/0x290
[  257.145204][ T6753]  ? kernfs_path_from_node+0x2f/0x290
[  257.145220][ T6753]  sysfs_create_dir_ns+0x259/0x280
[  257.145243][ T6753]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.145265][ T6753]  ? do_raw_spin_unlock+0x122/0x240
[  257.145284][ T6753]  kobject_add_internal+0x59f/0xb40
[  257.145306][ T6753]  kobject_init_and_add+0x125/0x190
[  257.145328][ T6753]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.145347][ T6753]  ? __raw_spin_lock_init+0x45/0x100
[  257.145365][ T6753]  ? __init_swait_queue_head+0xa9/0x150
[  257.145382][ T6753]  gfs2_sys_fs_add+0x234/0x450
[  257.145405][ T6753]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.145427][ T6753]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.145450][ T6753]  gfs2_fill_super+0x13c0/0x20d0
[  257.145472][ T6753]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.145489][ T6753]  ? sb_set_blocksize+0x104/0x180
[  257.145510][ T6753]  ? setup_bdev_super+0x4c1/0x5b0
[  257.145529][ T6753]  get_tree_bdev_flags+0x40e/0x4d0
[  257.145547][ T6753]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.145564][ T6753]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.145586][ T6753]  gfs2_get_tree+0x51/0x1e0
[  257.145604][ T6753]  vfs_get_tree+0x92/0x2b0
[  257.145624][ T6753]  do_new_mount+0x2a2/0xa30
[  257.145644][ T6753]  ? ns_capable+0x8a/0xf0
[  257.145664][ T6753]  ? __pfx_do_new_mount+0x10/0x10
[  257.145681][ T6753]  ? path_mount+0x61c/0xfe0
[  257.145698][ T6753]  ? user_path_at+0x44/0x60
[  257.145717][ T6753]  __se_sys_mount+0x317/0x410
[  257.145741][ T6753]  ? __pfx___se_sys_mount+0x10/0x10
[  257.145762][ T6753]  ? rcu_is_watching+0x15/0xb0
[  257.145781][ T6753]  ? __x64_sys_mount+0x20/0xc0
[  257.145801][ T6753]  do_syscall_64+0xfa/0xfa0
[  257.145819][ T6753]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.145834][ T6753]  ? clear_bhb_loop+0x60/0xb0
[  257.145852][ T6753]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.145868][ T6753] RIP: 0033:0x7f6a6df9038a
[  257.145884][ T6753] 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
[  257.145899][ T6753] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.145930][ T6753] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  257.145943][ T6753] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  257.145955][ T6753] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  257.145968][ T6753] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  257.145980][ T6753] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  257.145997][ T6753]  </TASK>
[  257.146021][ T6753] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.460964][ T6753] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 22:16:03 executed programs: 229
[  257.671548][ T6756] loop1: detected capacity change from 0 to 32768
[  257.682514][ T6756] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.689948][ T6756] CPU: 1 UID: 0 PID: 6756 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT(full) 
[  257.689969][ T6756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  257.689984][ T6756] Call Trace:
[  257.689991][ T6756]  <TASK>
[  257.689998][ T6756]  dump_stack_lvl+0x189/0x250
[  257.690022][ T6756]  ? __pfx_dump_stack_lvl+0x10/0x10
[  257.690039][ T6756]  ? __pfx__printk+0x10/0x10
[  257.690057][ T6756]  ? kernfs_root+0x1c/0x230
[  257.690073][ T6756]  ? kernfs_path_from_node+0x250/0x290
[  257.690086][ T6756]  ? kernfs_path_from_node+0x2f/0x290
[  257.690101][ T6756]  sysfs_create_dir_ns+0x259/0x280
[  257.690122][ T6756]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.690143][ T6756]  ? do_raw_spin_unlock+0x122/0x240
[  257.690159][ T6756]  kobject_add_internal+0x59f/0xb40
[  257.690182][ T6756]  kobject_init_and_add+0x125/0x190
[  257.690202][ T6756]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.690219][ T6756]  ? __raw_spin_lock_init+0x45/0x100
[  257.690233][ T6756]  ? __init_swait_queue_head+0xa9/0x150
[  257.690248][ T6756]  gfs2_sys_fs_add+0x234/0x450
[  257.690269][ T6756]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.690292][ T6756]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.690313][ T6756]  gfs2_fill_super+0x13c0/0x20d0
[  257.690337][ T6756]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.690355][ T6756]  ? sb_set_blocksize+0x104/0x180
[  257.690374][ T6756]  ? setup_bdev_super+0x4c1/0x5b0
[  257.690393][ T6756]  get_tree_bdev_flags+0x40e/0x4d0
[  257.690411][ T6756]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.690427][ T6756]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.690447][ T6756]  gfs2_get_tree+0x51/0x1e0
[  257.690465][ T6756]  vfs_get_tree+0x92/0x2b0
[  257.690484][ T6756]  do_new_mount+0x2a2/0xa30
[  257.690504][ T6756]  ? ns_capable+0x8a/0xf0
[  257.690524][ T6756]  ? __pfx_do_new_mount+0x10/0x10
[  257.690542][ T6756]  ? path_mount+0x61c/0xfe0
[  257.690559][ T6756]  ? user_path_at+0x44/0x60
[  257.690579][ T6756]  __se_sys_mount+0x317/0x410
[  257.690612][ T6756]  ? __pfx___se_sys_mount+0x10/0x10
[  257.690633][ T6756]  ? rcu_is_watching+0x15/0xb0
[  257.690653][ T6756]  ? __x64_sys_mount+0x20/0xc0
[  257.690672][ T6756]  do_syscall_64+0xfa/0xfa0
[  257.690690][ T6756]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.690705][ T6756]  ? clear_bhb_loop+0x60/0xb0
[  257.690722][ T6756]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.690737][ T6756] RIP: 0033:0x7f6a6df9038a
[  257.690753][ T6756] 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
[  257.690768][ T6756] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.690786][ T6756] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  257.690799][ T6756] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  257.690811][ T6756] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  257.690822][ T6756] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  257.690834][ T6756] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  257.690851][ T6756]  </TASK>
[  257.990189][ T6756] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.004549][ T6756] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.215075][ T6759] loop1: detected capacity change from 0 to 32768
[  258.230634][ T6759] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.238077][ T6759] CPU: 0 UID: 0 PID: 6759 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT(full) 
[  258.238097][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  258.238107][ T6759] Call Trace:
[  258.238113][ T6759]  <TASK>
[  258.238120][ T6759]  dump_stack_lvl+0x189/0x250
[  258.238142][ T6759]  ? __pfx_dump_stack_lvl+0x10/0x10
[  258.238161][ T6759]  ? __pfx__printk+0x10/0x10
[  258.238181][ T6759]  ? kernfs_root+0x1c/0x230
[  258.238196][ T6759]  ? kernfs_path_from_node+0x250/0x290
[  258.238210][ T6759]  ? kernfs_path_from_node+0x2f/0x290
[  258.238225][ T6759]  sysfs_create_dir_ns+0x259/0x280
[  258.238244][ T6759]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.238265][ T6759]  ? do_raw_spin_unlock+0x122/0x240
[  258.238281][ T6759]  kobject_add_internal+0x59f/0xb40
[  258.238301][ T6759]  kobject_init_and_add+0x125/0x190
[  258.238320][ T6759]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.238336][ T6759]  ? __raw_spin_lock_init+0x45/0x100
[  258.238351][ T6759]  ? __init_swait_queue_head+0xa9/0x150
[  258.238367][ T6759]  gfs2_sys_fs_add+0x234/0x450
[  258.238386][ T6759]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.238408][ T6759]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.238430][ T6759]  gfs2_fill_super+0x13c0/0x20d0
[  258.238452][ T6759]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.238469][ T6759]  ? sb_set_blocksize+0x104/0x180
[  258.238489][ T6759]  ? setup_bdev_super+0x4c1/0x5b0
[  258.238507][ T6759]  get_tree_bdev_flags+0x40e/0x4d0
[  258.238525][ T6759]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.238552][ T6759]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.238572][ T6759]  gfs2_get_tree+0x51/0x1e0
[  258.238589][ T6759]  vfs_get_tree+0x92/0x2b0
[  258.238608][ T6759]  do_new_mount+0x2a2/0xa30
[  258.238629][ T6759]  ? ns_capable+0x8a/0xf0
[  258.238650][ T6759]  ? __pfx_do_new_mount+0x10/0x10
[  258.238669][ T6759]  ? path_mount+0x61c/0xfe0
[  258.238684][ T6759]  ? user_path_at+0x44/0x60
[  258.238701][ T6759]  __se_sys_mount+0x317/0x410
[  258.238722][ T6759]  ? __pfx___se_sys_mount+0x10/0x10
[  258.238742][ T6759]  ? rcu_is_watching+0x15/0xb0
[  258.238762][ T6759]  ? __x64_sys_mount+0x20/0xc0
[  258.238781][ T6759]  do_syscall_64+0xfa/0xfa0
[  258.238799][ T6759]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.238814][ T6759]  ? clear_bhb_loop+0x60/0xb0
[  258.238829][ T6759]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.238843][ T6759] RIP: 0033:0x7f6a6df9038a
[  258.238858][ T6759] 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
[  258.238872][ T6759] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.238891][ T6759] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  258.238904][ T6759] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  258.238915][ T6759] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  258.238927][ T6759] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  258.238938][ T6759] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  258.238956][ T6759]  </TASK>
[  258.239046][ T6759] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.552535][ T6759] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.757389][ T6762] loop1: detected capacity change from 0 to 32768
[  258.768954][ T6762] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.778855][ T6762] CPU: 1 UID: 0 PID: 6762 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT(full) 
[  258.778878][ T6762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  258.778889][ T6762] Call Trace:
[  258.778896][ T6762]  <TASK>
[  258.778903][ T6762]  dump_stack_lvl+0x189/0x250
[  258.778928][ T6762]  ? __pfx_dump_stack_lvl+0x10/0x10
[  258.778945][ T6762]  ? __pfx__printk+0x10/0x10
[  258.778963][ T6762]  ? kernfs_root+0x1c/0x230
[  258.778981][ T6762]  ? kernfs_path_from_node+0x250/0x290
[  258.778996][ T6762]  ? kernfs_path_from_node+0x2f/0x290
[  258.779012][ T6762]  sysfs_create_dir_ns+0x259/0x280
[  258.779036][ T6762]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.779058][ T6762]  ? do_raw_spin_unlock+0x122/0x240
[  258.779076][ T6762]  kobject_add_internal+0x59f/0xb40
[  258.779099][ T6762]  kobject_init_and_add+0x125/0x190
[  258.779120][ T6762]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.779138][ T6762]  ? __raw_spin_lock_init+0x45/0x100
[  258.779154][ T6762]  ? __init_swait_queue_head+0xa9/0x150
[  258.779171][ T6762]  gfs2_sys_fs_add+0x234/0x450
[  258.779193][ T6762]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.779217][ T6762]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.779239][ T6762]  gfs2_fill_super+0x13c0/0x20d0
[  258.779263][ T6762]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.779281][ T6762]  ? sb_set_blocksize+0x104/0x180
[  258.779301][ T6762]  ? setup_bdev_super+0x4c1/0x5b0
[  258.779320][ T6762]  get_tree_bdev_flags+0x40e/0x4d0
[  258.779339][ T6762]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.779357][ T6762]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.779379][ T6762]  gfs2_get_tree+0x51/0x1e0
[  258.779399][ T6762]  vfs_get_tree+0x92/0x2b0
[  258.779417][ T6762]  do_new_mount+0x2a2/0xa30
[  258.779438][ T6762]  ? ns_capable+0x8a/0xf0
[  258.779457][ T6762]  ? __pfx_do_new_mount+0x10/0x10
[  258.779475][ T6762]  ? path_mount+0x61c/0xfe0
[  258.779492][ T6762]  ? user_path_at+0x44/0x60
[  258.779520][ T6762]  __se_sys_mount+0x317/0x410
[  258.779542][ T6762]  ? __pfx___se_sys_mount+0x10/0x10
[  258.779563][ T6762]  ? rcu_is_watching+0x15/0xb0
[  258.779583][ T6762]  ? __x64_sys_mount+0x20/0xc0
[  258.779603][ T6762]  do_syscall_64+0xfa/0xfa0
[  258.779623][ T6762]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.779639][ T6762]  ? clear_bhb_loop+0x60/0xb0
[  258.779655][ T6762]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.779670][ T6762] RIP: 0033:0x7f6a6df9038a
[  258.779686][ T6762] 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
[  258.779701][ T6762] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.779722][ T6762] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  258.779735][ T6762] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  258.779748][ T6762] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  258.779759][ T6762] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  258.779770][ T6762] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  258.779789][ T6762]  </TASK>
[  258.779806][ T6762] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.094840][ T6762] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.304135][ T6765] loop1: detected capacity change from 0 to 32768
[  259.335136][ T6765] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.342667][ T6765] CPU: 1 UID: 0 PID: 6765 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  259.342691][ T6765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  259.342703][ T6765] Call Trace:
[  259.342710][ T6765]  <TASK>
[  259.342725][ T6765]  dump_stack_lvl+0x189/0x250
[  259.342750][ T6765]  ? __pfx_dump_stack_lvl+0x10/0x10
[  259.342769][ T6765]  ? __pfx__printk+0x10/0x10
[  259.342788][ T6765]  ? kernfs_root+0x1c/0x230
[  259.342805][ T6765]  ? kernfs_path_from_node+0x250/0x290
[  259.342820][ T6765]  ? kernfs_path_from_node+0x2f/0x290
[  259.342837][ T6765]  sysfs_create_dir_ns+0x259/0x280
[  259.342860][ T6765]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.342883][ T6765]  ? do_raw_spin_unlock+0x122/0x240
[  259.342903][ T6765]  kobject_add_internal+0x59f/0xb40
[  259.342927][ T6765]  kobject_init_and_add+0x125/0x190
[  259.342948][ T6765]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.342968][ T6765]  ? __raw_spin_lock_init+0x45/0x100
[  259.342985][ T6765]  ? __init_swait_queue_head+0xa9/0x150
[  259.343002][ T6765]  gfs2_sys_fs_add+0x234/0x450
[  259.343024][ T6765]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.343049][ T6765]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.343072][ T6765]  gfs2_fill_super+0x13c0/0x20d0
[  259.343096][ T6765]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.343115][ T6765]  ? sb_set_blocksize+0x104/0x180
[  259.343137][ T6765]  ? setup_bdev_super+0x4c1/0x5b0
[  259.343156][ T6765]  get_tree_bdev_flags+0x40e/0x4d0
[  259.343174][ T6765]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.343190][ T6765]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.343212][ T6765]  gfs2_get_tree+0x51/0x1e0
[  259.343230][ T6765]  vfs_get_tree+0x92/0x2b0
[  259.343249][ T6765]  do_new_mount+0x2a2/0xa30
[  259.343271][ T6765]  ? ns_capable+0x8a/0xf0
[  259.343291][ T6765]  ? __pfx_do_new_mount+0x10/0x10
[  259.343309][ T6765]  ? path_mount+0x61c/0xfe0
[  259.343326][ T6765]  ? user_path_at+0x44/0x60
[  259.343345][ T6765]  __se_sys_mount+0x317/0x410
[  259.343368][ T6765]  ? __pfx___se_sys_mount+0x10/0x10
[  259.343389][ T6765]  ? rcu_is_watching+0x15/0xb0
[  259.343410][ T6765]  ? __x64_sys_mount+0x20/0xc0
[  259.343429][ T6765]  do_syscall_64+0xfa/0xfa0
[  259.343448][ T6765]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.343464][ T6765]  ? clear_bhb_loop+0x60/0xb0
[  259.343481][ T6765]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.343498][ T6765] RIP: 0033:0x7f6a6df9038a
[  259.343514][ T6765] 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
[  259.343529][ T6765] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.343549][ T6765] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  259.343562][ T6765] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  259.343574][ T6765] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  259.343586][ T6765] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  259.343598][ T6765] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  259.343618][ T6765]  </TASK>
[  259.343638][ T6765] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.380779][ T5186] Bluetooth: hci1: command 0x0406 tx timeout
[  259.383794][ T6765] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.874214][ T6768] loop1: detected capacity change from 0 to 32768
[  259.884871][ T6768] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.892377][ T6768] CPU: 1 UID: 0 PID: 6768 Comm: syz.1.248 Not tainted syzkaller #0 PREEMPT(full) 
[  259.892399][ T6768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  259.892408][ T6768] Call Trace:
[  259.892415][ T6768]  <TASK>
[  259.892422][ T6768]  dump_stack_lvl+0x189/0x250
[  259.892444][ T6768]  ? __pfx_dump_stack_lvl+0x10/0x10
[  259.892461][ T6768]  ? __pfx__printk+0x10/0x10
[  259.892480][ T6768]  ? kernfs_root+0x1c/0x230
[  259.892497][ T6768]  ? kernfs_path_from_node+0x250/0x290
[  259.892511][ T6768]  ? kernfs_path_from_node+0x2f/0x290
[  259.892527][ T6768]  sysfs_create_dir_ns+0x259/0x280
[  259.892550][ T6768]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.892571][ T6768]  ? do_raw_spin_unlock+0x122/0x240
[  259.892591][ T6768]  kobject_add_internal+0x59f/0xb40
[  259.892616][ T6768]  kobject_init_and_add+0x125/0x190
[  259.892638][ T6768]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.892666][ T6768]  ? __raw_spin_lock_init+0x45/0x100
[  259.892683][ T6768]  ? __init_swait_queue_head+0xa9/0x150
[  259.892699][ T6768]  gfs2_sys_fs_add+0x234/0x450
[  259.892721][ T6768]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.892743][ T6768]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.892763][ T6768]  gfs2_fill_super+0x13c0/0x20d0
[  259.892786][ T6768]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.892804][ T6768]  ? sb_set_blocksize+0x104/0x180
[  259.892824][ T6768]  ? setup_bdev_super+0x4c1/0x5b0
[  259.892843][ T6768]  get_tree_bdev_flags+0x40e/0x4d0
[  259.892862][ T6768]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.892881][ T6768]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.892904][ T6768]  gfs2_get_tree+0x51/0x1e0
[  259.892924][ T6768]  vfs_get_tree+0x92/0x2b0
[  259.892943][ T6768]  do_new_mount+0x2a2/0xa30
[  259.892964][ T6768]  ? ns_capable+0x8a/0xf0
[  259.892985][ T6768]  ? __pfx_do_new_mount+0x10/0x10
[  259.893003][ T6768]  ? path_mount+0x61c/0xfe0
[  259.893020][ T6768]  ? user_path_at+0x44/0x60
[  259.893037][ T6768]  __se_sys_mount+0x317/0x410
[  259.893058][ T6768]  ? __pfx___se_sys_mount+0x10/0x10
[  259.893076][ T6768]  ? rcu_is_watching+0x15/0xb0
[  259.893096][ T6768]  ? __x64_sys_mount+0x20/0xc0
[  259.893115][ T6768]  do_syscall_64+0xfa/0xfa0
[  259.893133][ T6768]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.893149][ T6768]  ? clear_bhb_loop+0x60/0xb0
[  259.893166][ T6768]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.893182][ T6768] RIP: 0033:0x7f6a6df9038a
[  259.893197][ T6768] 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
[  259.893211][ T6768] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.893230][ T6768] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  259.893243][ T6768] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  259.893256][ T6768] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  259.893267][ T6768] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  259.893277][ T6768] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  259.893294][ T6768]  </TASK>
[  259.893313][ T6768] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.207278][ T6768] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.417481][ T6771] loop1: detected capacity change from 0 to 32768
[  260.428611][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.436289][ T6771] CPU: 1 UID: 0 PID: 6771 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT(full) 
[  260.436311][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  260.436321][ T6771] Call Trace:
[  260.436328][ T6771]  <TASK>
[  260.436335][ T6771]  dump_stack_lvl+0x189/0x250
[  260.436360][ T6771]  ? __pfx_dump_stack_lvl+0x10/0x10
[  260.436379][ T6771]  ? __pfx__printk+0x10/0x10
[  260.436397][ T6771]  ? kernfs_root+0x1c/0x230
[  260.436414][ T6771]  ? kernfs_path_from_node+0x250/0x290
[  260.436428][ T6771]  ? kernfs_path_from_node+0x2f/0x290
[  260.436444][ T6771]  sysfs_create_dir_ns+0x259/0x280
[  260.436467][ T6771]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.436489][ T6771]  ? do_raw_spin_unlock+0x122/0x240
[  260.436507][ T6771]  kobject_add_internal+0x59f/0xb40
[  260.436529][ T6771]  kobject_init_and_add+0x125/0x190
[  260.436550][ T6771]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.436570][ T6771]  ? __raw_spin_lock_init+0x45/0x100
[  260.436587][ T6771]  ? __init_swait_queue_head+0xa9/0x150
[  260.436605][ T6771]  gfs2_sys_fs_add+0x234/0x450
[  260.436627][ T6771]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.436650][ T6771]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.436672][ T6771]  gfs2_fill_super+0x13c0/0x20d0
[  260.436694][ T6771]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.436712][ T6771]  ? sb_set_blocksize+0x104/0x180
[  260.436732][ T6771]  ? setup_bdev_super+0x4c1/0x5b0
[  260.436752][ T6771]  get_tree_bdev_flags+0x40e/0x4d0
[  260.436770][ T6771]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.436787][ T6771]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.436809][ T6771]  gfs2_get_tree+0x51/0x1e0
[  260.436827][ T6771]  vfs_get_tree+0x92/0x2b0
[  260.436846][ T6771]  do_new_mount+0x2a2/0xa30
[  260.436865][ T6771]  ? ns_capable+0x8a/0xf0
[  260.436885][ T6771]  ? __pfx_do_new_mount+0x10/0x10
[  260.436904][ T6771]  ? path_mount+0x61c/0xfe0
[  260.436922][ T6771]  ? user_path_at+0x44/0x60
[  260.436942][ T6771]  __se_sys_mount+0x317/0x410
[  260.436964][ T6771]  ? __pfx___se_sys_mount+0x10/0x10
[  260.436984][ T6771]  ? rcu_is_watching+0x15/0xb0
[  260.437004][ T6771]  ? __x64_sys_mount+0x20/0xc0
[  260.437023][ T6771]  do_syscall_64+0xfa/0xfa0
[  260.437041][ T6771]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.437057][ T6771]  ? clear_bhb_loop+0x60/0xb0
[  260.437075][ T6771]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.437091][ T6771] RIP: 0033:0x7f6a6df9038a
[  260.437107][ T6771] 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
[  260.437121][ T6771] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.437140][ T6771] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  260.437153][ T6771] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  260.437166][ T6771] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  260.437177][ T6771] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  260.437189][ T6771] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  260.437207][ T6771]  </TASK>
[  260.437224][ T6771] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.752431][ T6771] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.961687][ T6774] loop1: detected capacity change from 0 to 32768
[  260.976513][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.984064][ T6774] CPU: 0 UID: 0 PID: 6774 Comm: syz.1.250 Not tainted syzkaller #0 PREEMPT(full) 
[  260.984087][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  260.984097][ T6774] Call Trace:
[  260.984105][ T6774]  <TASK>
[  260.984112][ T6774]  dump_stack_lvl+0x189/0x250
[  260.984137][ T6774]  ? __pfx_dump_stack_lvl+0x10/0x10
[  260.984156][ T6774]  ? __pfx__printk+0x10/0x10
[  260.984176][ T6774]  ? kernfs_root+0x1c/0x230
[  260.984191][ T6774]  ? kernfs_path_from_node+0x250/0x290
[  260.984206][ T6774]  ? kernfs_path_from_node+0x2f/0x290
[  260.984221][ T6774]  sysfs_create_dir_ns+0x259/0x280
[  260.984245][ T6774]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.984268][ T6774]  ? do_raw_spin_unlock+0x122/0x240
[  260.984286][ T6774]  kobject_add_internal+0x59f/0xb40
[  260.984309][ T6774]  kobject_init_and_add+0x125/0x190
[  260.984330][ T6774]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.984349][ T6774]  ? __raw_spin_lock_init+0x45/0x100
[  260.984364][ T6774]  ? __init_swait_queue_head+0xa9/0x150
[  260.984380][ T6774]  gfs2_sys_fs_add+0x234/0x450
[  260.984402][ T6774]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.984425][ T6774]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.984449][ T6774]  gfs2_fill_super+0x13c0/0x20d0
[  260.984472][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.984490][ T6774]  ? sb_set_blocksize+0x104/0x180
[  260.984511][ T6774]  ? setup_bdev_super+0x4c1/0x5b0
[  260.984541][ T6774]  get_tree_bdev_flags+0x40e/0x4d0
[  260.984559][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.984584][ T6774]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.984607][ T6774]  gfs2_get_tree+0x51/0x1e0
[  260.984626][ T6774]  vfs_get_tree+0x92/0x2b0
[  260.984646][ T6774]  do_new_mount+0x2a2/0xa30
[  260.984666][ T6774]  ? ns_capable+0x8a/0xf0
[  260.984687][ T6774]  ? __pfx_do_new_mount+0x10/0x10
[  260.984705][ T6774]  ? path_mount+0x61c/0xfe0
[  260.984722][ T6774]  ? user_path_at+0x44/0x60
[  260.984740][ T6774]  __se_sys_mount+0x317/0x410
[  260.984761][ T6774]  ? __pfx___se_sys_mount+0x10/0x10
[  260.984782][ T6774]  ? rcu_is_watching+0x15/0xb0
[  260.984802][ T6774]  ? __x64_sys_mount+0x20/0xc0
[  260.984822][ T6774]  do_syscall_64+0xfa/0xfa0
[  260.984841][ T6774]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.984858][ T6774]  ? clear_bhb_loop+0x60/0xb0
[  260.984875][ T6774]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.984890][ T6774] RIP: 0033:0x7f6a6df9038a
[  260.984906][ T6774] 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
[  260.984922][ T6774] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.984942][ T6774] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  260.984956][ T6774] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  260.984969][ T6774] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  260.984981][ T6774] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  260.984992][ T6774] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  260.985011][ T6774]  </TASK>
[  260.985032][ T6774] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.298563][ T6774] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.504268][ T6777] loop1: detected capacity change from 0 to 32768
[  261.517775][ T6777] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.525506][ T6777] CPU: 0 UID: 0 PID: 6777 Comm: syz.1.251 Not tainted syzkaller #0 PREEMPT(full) 
[  261.525527][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  261.525538][ T6777] Call Trace:
[  261.525545][ T6777]  <TASK>
[  261.525552][ T6777]  dump_stack_lvl+0x189/0x250
[  261.525576][ T6777]  ? __pfx_dump_stack_lvl+0x10/0x10
[  261.525594][ T6777]  ? __pfx__printk+0x10/0x10
[  261.525613][ T6777]  ? kernfs_root+0x1c/0x230
[  261.525629][ T6777]  ? kernfs_path_from_node+0x250/0x290
[  261.525644][ T6777]  ? kernfs_path_from_node+0x2f/0x290
[  261.525660][ T6777]  sysfs_create_dir_ns+0x259/0x280
[  261.525683][ T6777]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.525704][ T6777]  ? do_raw_spin_unlock+0x122/0x240
[  261.525723][ T6777]  kobject_add_internal+0x59f/0xb40
[  261.525746][ T6777]  kobject_init_and_add+0x125/0x190
[  261.525766][ T6777]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.525785][ T6777]  ? __raw_spin_lock_init+0x45/0x100
[  261.525803][ T6777]  ? __init_swait_queue_head+0xa9/0x150
[  261.525821][ T6777]  gfs2_sys_fs_add+0x234/0x450
[  261.525844][ T6777]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.525868][ T6777]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.525890][ T6777]  gfs2_fill_super+0x13c0/0x20d0
[  261.525913][ T6777]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.525931][ T6777]  ? sb_set_blocksize+0x104/0x180
[  261.525951][ T6777]  ? setup_bdev_super+0x4c1/0x5b0
[  261.525971][ T6777]  get_tree_bdev_flags+0x40e/0x4d0
[  261.525989][ T6777]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.526006][ T6777]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.526027][ T6777]  gfs2_get_tree+0x51/0x1e0
[  261.526045][ T6777]  vfs_get_tree+0x92/0x2b0
[  261.526064][ T6777]  do_new_mount+0x2a2/0xa30
[  261.526084][ T6777]  ? ns_capable+0x8a/0xf0
[  261.526105][ T6777]  ? __pfx_do_new_mount+0x10/0x10
[  261.526123][ T6777]  ? path_mount+0x61c/0xfe0
[  261.526140][ T6777]  ? user_path_at+0x44/0x60
[  261.526159][ T6777]  __se_sys_mount+0x317/0x410
[  261.526194][ T6777]  ? __pfx___se_sys_mount+0x10/0x10
[  261.526215][ T6777]  ? rcu_is_watching+0x15/0xb0
[  261.526235][ T6777]  ? __x64_sys_mount+0x20/0xc0
[  261.526255][ T6777]  do_syscall_64+0xfa/0xfa0
[  261.526274][ T6777]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.526291][ T6777]  ? clear_bhb_loop+0x60/0xb0
[  261.526309][ T6777]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.526324][ T6777] RIP: 0033:0x7f6a6df9038a
[  261.526340][ T6777] 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
[  261.526355][ T6777] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.526375][ T6777] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  261.526388][ T6777] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  261.526402][ T6777] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  261.526414][ T6777] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  261.526425][ T6777] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  261.526443][ T6777]  </TASK>
[  261.526461][ T6777] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.839578][ T6777] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.048873][ T6780] loop1: detected capacity change from 0 to 32768
[  262.064307][ T6780] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.072028][ T6780] CPU: 1 UID: 0 PID: 6780 Comm: syz.1.252 Not tainted syzkaller #0 PREEMPT(full) 
[  262.072051][ T6780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  262.072063][ T6780] Call Trace:
[  262.072071][ T6780]  <TASK>
[  262.072079][ T6780]  dump_stack_lvl+0x189/0x250
[  262.072103][ T6780]  ? __pfx_dump_stack_lvl+0x10/0x10
[  262.072121][ T6780]  ? __pfx__printk+0x10/0x10
[  262.072141][ T6780]  ? kernfs_root+0x1c/0x230
[  262.072158][ T6780]  ? kernfs_path_from_node+0x250/0x290
[  262.072170][ T6780]  ? kernfs_path_from_node+0x2f/0x290
[  262.072185][ T6780]  sysfs_create_dir_ns+0x259/0x280
[  262.072208][ T6780]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  262.072229][ T6780]  ? do_raw_spin_unlock+0x122/0x240
[  262.072249][ T6780]  kobject_add_internal+0x59f/0xb40
[  262.072274][ T6780]  kobject_init_and_add+0x125/0x190
[  262.072295][ T6780]  ? __pfx_kobject_init_and_add+0x10/0x10
[  262.072316][ T6780]  ? __raw_spin_lock_init+0x45/0x100
[  262.072332][ T6780]  ? __init_swait_queue_head+0xa9/0x150
[  262.072349][ T6780]  gfs2_sys_fs_add+0x234/0x450
[  262.072372][ T6780]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  262.072396][ T6780]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  262.072426][ T6780]  gfs2_fill_super+0x13c0/0x20d0
[  262.072449][ T6780]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.072468][ T6780]  ? sb_set_blocksize+0x104/0x180
[  262.072489][ T6780]  ? setup_bdev_super+0x4c1/0x5b0
[  262.072509][ T6780]  get_tree_bdev_flags+0x40e/0x4d0
[  262.072528][ T6780]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.072545][ T6780]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  262.072567][ T6780]  gfs2_get_tree+0x51/0x1e0
[  262.072584][ T6780]  vfs_get_tree+0x92/0x2b0
[  262.072601][ T6780]  do_new_mount+0x2a2/0xa30
[  262.072645][ T6780]  ? ns_capable+0x8a/0xf0
[  262.072676][ T6780]  ? __pfx_do_new_mount+0x10/0x10
[  262.072694][ T6780]  ? path_mount+0x61c/0xfe0
[  262.072712][ T6780]  ? user_path_at+0x44/0x60
[  262.072730][ T6780]  __se_sys_mount+0x317/0x410
[  262.072752][ T6780]  ? __pfx___se_sys_mount+0x10/0x10
[  262.072773][ T6780]  ? rcu_is_watching+0x15/0xb0
[  262.072794][ T6780]  ? __x64_sys_mount+0x20/0xc0
[  262.072813][ T6780]  do_syscall_64+0xfa/0xfa0
[  262.072832][ T6780]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.072849][ T6780]  ? clear_bhb_loop+0x60/0xb0
[  262.072868][ T6780]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.072884][ T6780] RIP: 0033:0x7f6a6df9038a
[  262.072900][ T6780] 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
[  262.072914][ T6780] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.072933][ T6780] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  262.072946][ T6780] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  262.072957][ T6780] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  262.072968][ T6780] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  262.072979][ T6780] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  262.072998][ T6780]  </TASK>
[  262.073016][ T6780] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.387295][ T6780] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.431488][ T1300] ieee802154 phy0 wpan0: encryption failed: -22
[  262.437794][ T1300] ieee802154 phy1 wpan1: encryption failed: -22
[  262.607977][ T6783] loop1: detected capacity change from 0 to 32768
[  262.619154][ T6783] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.626658][ T6783] CPU: 0 UID: 0 PID: 6783 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT(full) 
[  262.626680][ T6783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  262.626689][ T6783] Call Trace:
[  262.626695][ T6783]  <TASK>
[  262.626702][ T6783]  dump_stack_lvl+0x189/0x250
[  262.626726][ T6783]  ? __pfx_dump_stack_lvl+0x10/0x10
[  262.626743][ T6783]  ? __pfx__printk+0x10/0x10
[  262.626762][ T6783]  ? kernfs_root+0x1c/0x230
[  262.626778][ T6783]  ? kernfs_path_from_node+0x250/0x290
[  262.626793][ T6783]  ? kernfs_path_from_node+0x2f/0x290
[  262.626808][ T6783]  sysfs_create_dir_ns+0x259/0x280
[  262.626831][ T6783]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  262.626853][ T6783]  ? do_raw_spin_unlock+0x122/0x240
[  262.626873][ T6783]  kobject_add_internal+0x59f/0xb40
[  262.626897][ T6783]  kobject_init_and_add+0x125/0x190
[  262.626919][ T6783]  ? __pfx_kobject_init_and_add+0x10/0x10
[  262.626939][ T6783]  ? __raw_spin_lock_init+0x45/0x100
[  262.626955][ T6783]  ? __init_swait_queue_head+0xa9/0x150
[  262.626973][ T6783]  gfs2_sys_fs_add+0x234/0x450
[  262.626995][ T6783]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  262.627019][ T6783]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  262.627041][ T6783]  gfs2_fill_super+0x13c0/0x20d0
[  262.627065][ T6783]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.627084][ T6783]  ? sb_set_blocksize+0x104/0x180
[  262.627105][ T6783]  ? setup_bdev_super+0x4c1/0x5b0
[  262.627135][ T6783]  get_tree_bdev_flags+0x40e/0x4d0
[  262.627154][ T6783]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.627171][ T6783]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  262.627193][ T6783]  gfs2_get_tree+0x51/0x1e0
[  262.627212][ T6783]  vfs_get_tree+0x92/0x2b0
[  262.627230][ T6783]  do_new_mount+0x2a2/0xa30
[  262.627251][ T6783]  ? ns_capable+0x8a/0xf0
[  262.627272][ T6783]  ? __pfx_do_new_mount+0x10/0x10
[  262.627291][ T6783]  ? path_mount+0x61c/0xfe0
[  262.627308][ T6783]  ? user_path_at+0x44/0x60
[  262.627326][ T6783]  __se_sys_mount+0x317/0x410
[  262.627347][ T6783]  ? __pfx___se_sys_mount+0x10/0x10
[  262.627368][ T6783]  ? rcu_is_watching+0x15/0xb0
[  262.627389][ T6783]  ? __x64_sys_mount+0x20/0xc0
[  262.627409][ T6783]  do_syscall_64+0xfa/0xfa0
[  262.627428][ T6783]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.627444][ T6783]  ? clear_bhb_loop+0x60/0xb0
[  262.627461][ T6783]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.627477][ T6783] RIP: 0033:0x7f6a6df9038a
[  262.627492][ T6783] 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
[  262.627506][ T6783] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.627524][ T6783] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  262.627537][ T6783] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  262.627549][ T6783] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  262.627561][ T6783] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  262.627572][ T6783] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  262.627591][ T6783]  </TASK>
[  262.627608][ T6783] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.941089][ T6783] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 22:16:09 executed programs: 239
[  263.148585][ T6786] loop1: detected capacity change from 0 to 32768
[  263.161603][ T6786] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.169022][ T6786] CPU: 0 UID: 0 PID: 6786 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT(full) 
[  263.169046][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  263.169056][ T6786] Call Trace:
[  263.169063][ T6786]  <TASK>
[  263.169070][ T6786]  dump_stack_lvl+0x189/0x250
[  263.169095][ T6786]  ? __pfx_dump_stack_lvl+0x10/0x10
[  263.169113][ T6786]  ? __pfx__printk+0x10/0x10
[  263.169132][ T6786]  ? kernfs_root+0x1c/0x230
[  263.169149][ T6786]  ? kernfs_path_from_node+0x250/0x290
[  263.169163][ T6786]  ? kernfs_path_from_node+0x2f/0x290
[  263.169178][ T6786]  sysfs_create_dir_ns+0x259/0x280
[  263.169202][ T6786]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.169223][ T6786]  ? do_raw_spin_unlock+0x122/0x240
[  263.169241][ T6786]  kobject_add_internal+0x59f/0xb40
[  263.169264][ T6786]  kobject_init_and_add+0x125/0x190
[  263.169285][ T6786]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.169305][ T6786]  ? __raw_spin_lock_init+0x45/0x100
[  263.169322][ T6786]  ? __init_swait_queue_head+0xa9/0x150
[  263.169341][ T6786]  gfs2_sys_fs_add+0x234/0x450
[  263.169362][ T6786]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.169386][ T6786]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.169407][ T6786]  gfs2_fill_super+0x13c0/0x20d0
[  263.169430][ T6786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.169448][ T6786]  ? sb_set_blocksize+0x104/0x180
[  263.169469][ T6786]  ? setup_bdev_super+0x4c1/0x5b0
[  263.169488][ T6786]  get_tree_bdev_flags+0x40e/0x4d0
[  263.169506][ T6786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.169523][ T6786]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.169545][ T6786]  gfs2_get_tree+0x51/0x1e0
[  263.169563][ T6786]  vfs_get_tree+0x92/0x2b0
[  263.169582][ T6786]  do_new_mount+0x2a2/0xa30
[  263.169603][ T6786]  ? ns_capable+0x8a/0xf0
[  263.169623][ T6786]  ? __pfx_do_new_mount+0x10/0x10
[  263.169642][ T6786]  ? path_mount+0x61c/0xfe0
[  263.169660][ T6786]  ? user_path_at+0x44/0x60
[  263.169680][ T6786]  __se_sys_mount+0x317/0x410
[  263.169702][ T6786]  ? __pfx___se_sys_mount+0x10/0x10
[  263.169723][ T6786]  ? rcu_is_watching+0x15/0xb0
[  263.169743][ T6786]  ? __x64_sys_mount+0x20/0xc0
[  263.169763][ T6786]  do_syscall_64+0xfa/0xfa0
[  263.169781][ T6786]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.169797][ T6786]  ? clear_bhb_loop+0x60/0xb0
[  263.169815][ T6786]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.169831][ T6786] RIP: 0033:0x7f6a6df9038a
[  263.169846][ T6786] 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
[  263.169861][ T6786] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.169879][ T6786] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  263.169893][ T6786] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  263.169905][ T6786] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  263.169918][ T6786] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  263.169929][ T6786] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  263.169947][ T6786]  </TASK>
[  263.169978][ T6786] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  263.483491][ T6786] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.686937][ T6789] loop1: detected capacity change from 0 to 32768
[  263.697802][ T6789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.705349][ T6789] CPU: 0 UID: 0 PID: 6789 Comm: syz.1.255 Not tainted syzkaller #0 PREEMPT(full) 
[  263.705373][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  263.705383][ T6789] Call Trace:
[  263.705390][ T6789]  <TASK>
[  263.705397][ T6789]  dump_stack_lvl+0x189/0x250
[  263.705422][ T6789]  ? __pfx_dump_stack_lvl+0x10/0x10
[  263.705439][ T6789]  ? __pfx__printk+0x10/0x10
[  263.705458][ T6789]  ? kernfs_root+0x1c/0x230
[  263.705474][ T6789]  ? kernfs_path_from_node+0x250/0x290
[  263.705489][ T6789]  ? kernfs_path_from_node+0x2f/0x290
[  263.705504][ T6789]  sysfs_create_dir_ns+0x259/0x280
[  263.705527][ T6789]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.705549][ T6789]  ? do_raw_spin_unlock+0x122/0x240
[  263.705567][ T6789]  kobject_add_internal+0x59f/0xb40
[  263.705591][ T6789]  kobject_init_and_add+0x125/0x190
[  263.705611][ T6789]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.705630][ T6789]  ? __raw_spin_lock_init+0x45/0x100
[  263.705647][ T6789]  ? __init_swait_queue_head+0xa9/0x150
[  263.705665][ T6789]  gfs2_sys_fs_add+0x234/0x450
[  263.705688][ T6789]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.705712][ T6789]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.705734][ T6789]  gfs2_fill_super+0x13c0/0x20d0
[  263.705757][ T6789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.705775][ T6789]  ? sb_set_blocksize+0x104/0x180
[  263.705794][ T6789]  ? setup_bdev_super+0x4c1/0x5b0
[  263.705813][ T6789]  get_tree_bdev_flags+0x40e/0x4d0
[  263.705831][ T6789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.705849][ T6789]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.705870][ T6789]  gfs2_get_tree+0x51/0x1e0
[  263.705888][ T6789]  vfs_get_tree+0x92/0x2b0
[  263.705906][ T6789]  do_new_mount+0x2a2/0xa30
[  263.705927][ T6789]  ? ns_capable+0x8a/0xf0
[  263.705959][ T6789]  ? __pfx_do_new_mount+0x10/0x10
[  263.705976][ T6789]  ? path_mount+0x61c/0xfe0
[  263.705993][ T6789]  ? user_path_at+0x44/0x60
[  263.706012][ T6789]  __se_sys_mount+0x317/0x410
[  263.706034][ T6789]  ? __pfx___se_sys_mount+0x10/0x10
[  263.706055][ T6789]  ? rcu_is_watching+0x15/0xb0
[  263.706077][ T6789]  ? __x64_sys_mount+0x20/0xc0
[  263.706096][ T6789]  do_syscall_64+0xfa/0xfa0
[  263.706115][ T6789]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.706130][ T6789]  ? clear_bhb_loop+0x60/0xb0
[  263.706147][ T6789]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.706162][ T6789] RIP: 0033:0x7f6a6df9038a
[  263.706178][ T6789] 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
[  263.706191][ T6789] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.706210][ T6789] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  263.706223][ T6789] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  263.706235][ T6789] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  263.706246][ T6789] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  263.706258][ T6789] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  263.706276][ T6789]  </TASK>
[  263.706301][ T6789] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.019087][ T6789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.227597][ T6792] loop1: detected capacity change from 0 to 32768
[  264.238766][ T6792] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.246607][ T6792] CPU: 0 UID: 0 PID: 6792 Comm: syz.1.256 Not tainted syzkaller #0 PREEMPT(full) 
[  264.246628][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  264.246640][ T6792] Call Trace:
[  264.246647][ T6792]  <TASK>
[  264.246654][ T6792]  dump_stack_lvl+0x189/0x250
[  264.246679][ T6792]  ? __pfx_dump_stack_lvl+0x10/0x10
[  264.246697][ T6792]  ? __pfx__printk+0x10/0x10
[  264.246716][ T6792]  ? kernfs_root+0x1c/0x230
[  264.246733][ T6792]  ? kernfs_path_from_node+0x250/0x290
[  264.246746][ T6792]  ? kernfs_path_from_node+0x2f/0x290
[  264.246761][ T6792]  sysfs_create_dir_ns+0x259/0x280
[  264.246784][ T6792]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.246807][ T6792]  ? do_raw_spin_unlock+0x122/0x240
[  264.246826][ T6792]  kobject_add_internal+0x59f/0xb40
[  264.246850][ T6792]  kobject_init_and_add+0x125/0x190
[  264.246870][ T6792]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.246889][ T6792]  ? __raw_spin_lock_init+0x45/0x100
[  264.246966][ T6792]  ? __init_swait_queue_head+0xa9/0x150
[  264.246983][ T6792]  gfs2_sys_fs_add+0x234/0x450
[  264.247005][ T6792]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.247028][ T6792]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.247050][ T6792]  gfs2_fill_super+0x13c0/0x20d0
[  264.247074][ T6792]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.247093][ T6792]  ? sb_set_blocksize+0x104/0x180
[  264.247113][ T6792]  ? setup_bdev_super+0x4c1/0x5b0
[  264.247133][ T6792]  get_tree_bdev_flags+0x40e/0x4d0
[  264.247151][ T6792]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.247220][ T6792]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.247245][ T6792]  gfs2_get_tree+0x51/0x1e0
[  264.247266][ T6792]  vfs_get_tree+0x92/0x2b0
[  264.247284][ T6792]  do_new_mount+0x2a2/0xa30
[  264.247305][ T6792]  ? ns_capable+0x8a/0xf0
[  264.247325][ T6792]  ? __pfx_do_new_mount+0x10/0x10
[  264.247342][ T6792]  ? path_mount+0x61c/0xfe0
[  264.247357][ T6792]  ? user_path_at+0x44/0x60
[  264.247374][ T6792]  __se_sys_mount+0x317/0x410
[  264.247394][ T6792]  ? __pfx___se_sys_mount+0x10/0x10
[  264.247414][ T6792]  ? rcu_is_watching+0x15/0xb0
[  264.247433][ T6792]  ? __x64_sys_mount+0x20/0xc0
[  264.247451][ T6792]  do_syscall_64+0xfa/0xfa0
[  264.247470][ T6792]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.247486][ T6792]  ? clear_bhb_loop+0x60/0xb0
[  264.247503][ T6792]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.247519][ T6792] RIP: 0033:0x7f6a6df9038a
[  264.247534][ T6792] 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
[  264.247548][ T6792] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.247566][ T6792] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  264.247579][ T6792] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  264.247591][ T6792] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  264.247603][ T6792] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  264.247615][ T6792] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  264.247634][ T6792]  </TASK>
[  264.247652][ T6792] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.561268][ T6792] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.764534][ T6795] loop1: detected capacity change from 0 to 32768
[  264.774185][ T6795] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.781744][ T6795] CPU: 0 UID: 0 PID: 6795 Comm: syz.1.257 Not tainted syzkaller #0 PREEMPT(full) 
[  264.781766][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  264.781776][ T6795] Call Trace:
[  264.781803][ T6795]  <TASK>
[  264.781809][ T6795]  dump_stack_lvl+0x189/0x250
[  264.781834][ T6795]  ? __pfx_dump_stack_lvl+0x10/0x10
[  264.781858][ T6795]  ? __pfx__printk+0x10/0x10
[  264.781879][ T6795]  ? kernfs_root+0x1c/0x230
[  264.781896][ T6795]  ? kernfs_path_from_node+0x250/0x290
[  264.781912][ T6795]  ? kernfs_path_from_node+0x2f/0x290
[  264.781928][ T6795]  sysfs_create_dir_ns+0x259/0x280
[  264.781952][ T6795]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.781973][ T6795]  ? do_raw_spin_unlock+0x122/0x240
[  264.781992][ T6795]  kobject_add_internal+0x59f/0xb40
[  264.782017][ T6795]  kobject_init_and_add+0x125/0x190
[  264.782038][ T6795]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.782058][ T6795]  ? __raw_spin_lock_init+0x45/0x100
[  264.782075][ T6795]  ? __init_swait_queue_head+0xa9/0x150
[  264.782091][ T6795]  gfs2_sys_fs_add+0x234/0x450
[  264.782114][ T6795]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.782139][ T6795]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.782162][ T6795]  gfs2_fill_super+0x13c0/0x20d0
[  264.782186][ T6795]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.782206][ T6795]  ? sb_set_blocksize+0x104/0x180
[  264.782227][ T6795]  ? setup_bdev_super+0x4c1/0x5b0
[  264.782247][ T6795]  get_tree_bdev_flags+0x40e/0x4d0
[  264.782265][ T6795]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.782282][ T6795]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.782305][ T6795]  gfs2_get_tree+0x51/0x1e0
[  264.782323][ T6795]  vfs_get_tree+0x92/0x2b0
[  264.782341][ T6795]  do_new_mount+0x2a2/0xa30
[  264.782359][ T6795]  ? ns_capable+0x8a/0xf0
[  264.782379][ T6795]  ? __pfx_do_new_mount+0x10/0x10
[  264.782395][ T6795]  ? path_mount+0x61c/0xfe0
[  264.782411][ T6795]  ? user_path_at+0x44/0x60
[  264.782430][ T6795]  __se_sys_mount+0x317/0x410
[  264.782452][ T6795]  ? __pfx___se_sys_mount+0x10/0x10
[  264.782471][ T6795]  ? rcu_is_watching+0x15/0xb0
[  264.782491][ T6795]  ? __x64_sys_mount+0x20/0xc0
[  264.782509][ T6795]  do_syscall_64+0xfa/0xfa0
[  264.782526][ T6795]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.782540][ T6795]  ? clear_bhb_loop+0x60/0xb0
[  264.782556][ T6795]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.782569][ T6795] RIP: 0033:0x7f6a6df9038a
[  264.782584][ T6795] 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
[  264.782598][ T6795] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.782615][ T6795] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  264.782626][ T6795] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  264.782638][ T6795] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  264.782650][ T6795] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  264.782661][ T6795] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  264.782678][ T6795]  </TASK>
[  264.782695][ T6795] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.096582][ T6795] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.312657][ T6798] loop1: detected capacity change from 0 to 32768
[  265.323225][ T6798] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.330736][ T6798] CPU: 0 UID: 0 PID: 6798 Comm: syz.1.258 Not tainted syzkaller #0 PREEMPT(full) 
[  265.330760][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  265.330780][ T6798] Call Trace:
[  265.330787][ T6798]  <TASK>
[  265.330794][ T6798]  dump_stack_lvl+0x189/0x250
[  265.330818][ T6798]  ? __pfx_dump_stack_lvl+0x10/0x10
[  265.330837][ T6798]  ? __pfx__printk+0x10/0x10
[  265.330857][ T6798]  ? kernfs_root+0x1c/0x230
[  265.330874][ T6798]  ? kernfs_path_from_node+0x250/0x290
[  265.330888][ T6798]  ? kernfs_path_from_node+0x2f/0x290
[  265.330905][ T6798]  sysfs_create_dir_ns+0x259/0x280
[  265.330928][ T6798]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.330949][ T6798]  ? do_raw_spin_unlock+0x122/0x240
[  265.330967][ T6798]  kobject_add_internal+0x59f/0xb40
[  265.330989][ T6798]  kobject_init_and_add+0x125/0x190
[  265.331010][ T6798]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.331027][ T6798]  ? __raw_spin_lock_init+0x45/0x100
[  265.331039][ T6798]  ? __init_swait_queue_head+0xa9/0x150
[  265.331055][ T6798]  gfs2_sys_fs_add+0x234/0x450
[  265.331077][ T6798]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.331101][ T6798]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.331123][ T6798]  gfs2_fill_super+0x13c0/0x20d0
[  265.331146][ T6798]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.331166][ T6798]  ? sb_set_blocksize+0x104/0x180
[  265.331187][ T6798]  ? setup_bdev_super+0x4c1/0x5b0
[  265.331205][ T6798]  get_tree_bdev_flags+0x40e/0x4d0
[  265.331223][ T6798]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.331241][ T6798]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.331263][ T6798]  gfs2_get_tree+0x51/0x1e0
[  265.331282][ T6798]  vfs_get_tree+0x92/0x2b0
[  265.331301][ T6798]  do_new_mount+0x2a2/0xa30
[  265.331322][ T6798]  ? ns_capable+0x8a/0xf0
[  265.331342][ T6798]  ? __pfx_do_new_mount+0x10/0x10
[  265.331358][ T6798]  ? path_mount+0x61c/0xfe0
[  265.331374][ T6798]  ? user_path_at+0x44/0x60
[  265.331390][ T6798]  __se_sys_mount+0x317/0x410
[  265.331410][ T6798]  ? __pfx___se_sys_mount+0x10/0x10
[  265.331429][ T6798]  ? rcu_is_watching+0x15/0xb0
[  265.331450][ T6798]  ? __x64_sys_mount+0x20/0xc0
[  265.331469][ T6798]  do_syscall_64+0xfa/0xfa0
[  265.331488][ T6798]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.331504][ T6798]  ? clear_bhb_loop+0x60/0xb0
[  265.331522][ T6798]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.331538][ T6798] RIP: 0033:0x7f6a6df9038a
[  265.331553][ T6798] 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
[  265.331568][ T6798] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.331587][ T6798] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  265.331601][ T6798] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  265.331613][ T6798] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  265.331624][ T6798] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  265.331635][ T6798] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  265.331653][ T6798]  </TASK>
[  265.331671][ T6798] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.645590][ T6798] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.855046][ T6801] loop1: detected capacity change from 0 to 32768
[  265.864221][ T6801] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.872005][ T6801] CPU: 1 UID: 0 PID: 6801 Comm: syz.1.259 Not tainted syzkaller #0 PREEMPT(full) 
[  265.872025][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  265.872036][ T6801] Call Trace:
[  265.872042][ T6801]  <TASK>
[  265.872048][ T6801]  dump_stack_lvl+0x189/0x250
[  265.872073][ T6801]  ? __pfx_dump_stack_lvl+0x10/0x10
[  265.872091][ T6801]  ? __pfx__printk+0x10/0x10
[  265.872110][ T6801]  ? kernfs_root+0x1c/0x230
[  265.872128][ T6801]  ? kernfs_path_from_node+0x250/0x290
[  265.872144][ T6801]  ? kernfs_path_from_node+0x2f/0x290
[  265.872167][ T6801]  sysfs_create_dir_ns+0x259/0x280
[  265.872191][ T6801]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.872213][ T6801]  ? do_raw_spin_unlock+0x122/0x240
[  265.872231][ T6801]  kobject_add_internal+0x59f/0xb40
[  265.872255][ T6801]  kobject_init_and_add+0x125/0x190
[  265.872277][ T6801]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.872296][ T6801]  ? __raw_spin_lock_init+0x45/0x100
[  265.872313][ T6801]  ? __init_swait_queue_head+0xa9/0x150
[  265.872331][ T6801]  gfs2_sys_fs_add+0x234/0x450
[  265.872352][ T6801]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.872376][ T6801]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.872398][ T6801]  gfs2_fill_super+0x13c0/0x20d0
[  265.872421][ T6801]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.872438][ T6801]  ? sb_set_blocksize+0x104/0x180
[  265.872457][ T6801]  ? setup_bdev_super+0x4c1/0x5b0
[  265.872475][ T6801]  get_tree_bdev_flags+0x40e/0x4d0
[  265.872490][ T6801]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.872507][ T6801]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.872530][ T6801]  gfs2_get_tree+0x51/0x1e0
[  265.872548][ T6801]  vfs_get_tree+0x92/0x2b0
[  265.872567][ T6801]  do_new_mount+0x2a2/0xa30
[  265.872588][ T6801]  ? ns_capable+0x8a/0xf0
[  265.872609][ T6801]  ? __pfx_do_new_mount+0x10/0x10
[  265.872628][ T6801]  ? path_mount+0x61c/0xfe0
[  265.872646][ T6801]  ? user_path_at+0x44/0x60
[  265.872665][ T6801]  __se_sys_mount+0x317/0x410
[  265.872687][ T6801]  ? __pfx___se_sys_mount+0x10/0x10
[  265.872706][ T6801]  ? rcu_is_watching+0x15/0xb0
[  265.872726][ T6801]  ? __x64_sys_mount+0x20/0xc0
[  265.872746][ T6801]  do_syscall_64+0xfa/0xfa0
[  265.872766][ T6801]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.872783][ T6801]  ? clear_bhb_loop+0x60/0xb0
[  265.872801][ T6801]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.872818][ T6801] RIP: 0033:0x7f6a6df9038a
[  265.872833][ T6801] 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
[  265.872848][ T6801] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.872868][ T6801] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  265.872881][ T6801] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  265.872893][ T6801] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  265.872905][ T6801] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  265.872916][ T6801] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  265.872936][ T6801]  </TASK>
[  265.872960][ T6801] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.186439][ T6801] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.395061][ T6804] loop1: detected capacity change from 0 to 32768
[  266.410796][ T6804] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.418232][ T6804] CPU: 1 UID: 0 PID: 6804 Comm: syz.1.260 Not tainted syzkaller #0 PREEMPT(full) 
[  266.418257][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.418268][ T6804] Call Trace:
[  266.418275][ T6804]  <TASK>
[  266.418282][ T6804]  dump_stack_lvl+0x189/0x250
[  266.418307][ T6804]  ? __pfx_dump_stack_lvl+0x10/0x10
[  266.418325][ T6804]  ? __pfx__printk+0x10/0x10
[  266.418344][ T6804]  ? kernfs_root+0x1c/0x230
[  266.418361][ T6804]  ? kernfs_path_from_node+0x250/0x290
[  266.418376][ T6804]  ? kernfs_path_from_node+0x2f/0x290
[  266.418392][ T6804]  sysfs_create_dir_ns+0x259/0x280
[  266.418415][ T6804]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  266.418437][ T6804]  ? do_raw_spin_unlock+0x122/0x240
[  266.418456][ T6804]  kobject_add_internal+0x59f/0xb40
[  266.418479][ T6804]  kobject_init_and_add+0x125/0x190
[  266.418500][ T6804]  ? __pfx_kobject_init_and_add+0x10/0x10
[  266.418521][ T6804]  ? __raw_spin_lock_init+0x45/0x100
[  266.418538][ T6804]  ? __init_swait_queue_head+0xa9/0x150
[  266.418556][ T6804]  gfs2_sys_fs_add+0x234/0x450
[  266.418578][ T6804]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  266.418601][ T6804]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  266.418622][ T6804]  gfs2_fill_super+0x13c0/0x20d0
[  266.418646][ T6804]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.418666][ T6804]  ? sb_set_blocksize+0x104/0x180
[  266.418686][ T6804]  ? setup_bdev_super+0x4c1/0x5b0
[  266.418716][ T6804]  get_tree_bdev_flags+0x40e/0x4d0
[  266.418735][ T6804]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.418753][ T6804]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  266.418776][ T6804]  gfs2_get_tree+0x51/0x1e0
[  266.418794][ T6804]  vfs_get_tree+0x92/0x2b0
[  266.418812][ T6804]  do_new_mount+0x2a2/0xa30
[  266.418833][ T6804]  ? ns_capable+0x8a/0xf0
[  266.418854][ T6804]  ? __pfx_do_new_mount+0x10/0x10
[  266.418873][ T6804]  ? path_mount+0x61c/0xfe0
[  266.418890][ T6804]  ? user_path_at+0x44/0x60
[  266.418908][ T6804]  __se_sys_mount+0x317/0x410
[  266.418930][ T6804]  ? __pfx___se_sys_mount+0x10/0x10
[  266.418950][ T6804]  ? rcu_is_watching+0x15/0xb0
[  266.418972][ T6804]  ? __x64_sys_mount+0x20/0xc0
[  266.418992][ T6804]  do_syscall_64+0xfa/0xfa0
[  266.419011][ T6804]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.419027][ T6804]  ? clear_bhb_loop+0x60/0xb0
[  266.419045][ T6804]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.419060][ T6804] RIP: 0033:0x7f6a6df9038a
[  266.419076][ T6804] 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
[  266.419090][ T6804] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.419109][ T6804] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  266.419122][ T6804] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  266.419134][ T6804] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  266.419145][ T6804] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  266.419157][ T6804] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  266.419177][ T6804]  </TASK>
[  266.419195][ T6804] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.733335][ T6804] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.943393][ T6807] loop1: detected capacity change from 0 to 32768
[  266.967995][ T6807] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.985688][ T6807] CPU: 1 UID: 0 PID: 6807 Comm: syz.1.261 Not tainted syzkaller #0 PREEMPT(full) 
[  266.985712][ T6807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  266.985724][ T6807] Call Trace:
[  266.985731][ T6807]  <TASK>
[  266.985738][ T6807]  dump_stack_lvl+0x189/0x250
[  266.985763][ T6807]  ? __pfx_dump_stack_lvl+0x10/0x10
[  266.985782][ T6807]  ? __pfx__printk+0x10/0x10
[  266.985800][ T6807]  ? kernfs_root+0x1c/0x230
[  266.985816][ T6807]  ? kernfs_path_from_node+0x250/0x290
[  266.985830][ T6807]  ? kernfs_path_from_node+0x2f/0x290
[  266.985847][ T6807]  sysfs_create_dir_ns+0x259/0x280
[  266.985876][ T6807]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  266.985895][ T6807]  ? do_raw_spin_unlock+0x122/0x240
[  266.985913][ T6807]  kobject_add_internal+0x59f/0xb40
[  266.985936][ T6807]  kobject_init_and_add+0x125/0x190
[  266.985956][ T6807]  ? __pfx_kobject_init_and_add+0x10/0x10
[  266.985974][ T6807]  ? __raw_spin_lock_init+0x45/0x100
[  266.985991][ T6807]  ? __init_swait_queue_head+0xa9/0x150
[  266.986008][ T6807]  gfs2_sys_fs_add+0x234/0x450
[  266.986038][ T6807]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  266.986061][ T6807]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  266.986084][ T6807]  gfs2_fill_super+0x13c0/0x20d0
[  266.986108][ T6807]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.986136][ T6807]  ? sb_set_blocksize+0x104/0x180
[  266.986156][ T6807]  ? setup_bdev_super+0x4c1/0x5b0
[  266.986174][ T6807]  get_tree_bdev_flags+0x40e/0x4d0
[  266.986193][ T6807]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.986209][ T6807]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  266.986228][ T6807]  gfs2_get_tree+0x51/0x1e0
[  266.986245][ T6807]  vfs_get_tree+0x92/0x2b0
[  266.986262][ T6807]  do_new_mount+0x2a2/0xa30
[  266.986282][ T6807]  ? ns_capable+0x8a/0xf0
[  266.986302][ T6807]  ? __pfx_do_new_mount+0x10/0x10
[  266.986321][ T6807]  ? path_mount+0x61c/0xfe0
[  266.986338][ T6807]  ? user_path_at+0x44/0x60
[  266.986355][ T6807]  __se_sys_mount+0x317/0x410
[  266.986376][ T6807]  ? __pfx___se_sys_mount+0x10/0x10
[  266.986396][ T6807]  ? rcu_is_watching+0x15/0xb0
[  266.986417][ T6807]  ? __x64_sys_mount+0x20/0xc0
[  266.986436][ T6807]  do_syscall_64+0xfa/0xfa0
[  266.986455][ T6807]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.986471][ T6807]  ? clear_bhb_loop+0x60/0xb0
[  266.986489][ T6807]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.986505][ T6807] RIP: 0033:0x7f6a6df9038a
[  266.986521][ T6807] 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
[  266.986536][ T6807] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.986564][ T6807] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  266.986575][ T6807] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  266.986587][ T6807] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  266.986599][ T6807] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  266.986611][ T6807] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  266.986628][ T6807]  </TASK>
[  266.987237][ T6807] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.301872][ T6807] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.504047][ T6810] loop1: detected capacity change from 0 to 32768
[  267.529191][ T6810] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.536872][ T6810] CPU: 0 UID: 0 PID: 6810 Comm: syz.1.262 Not tainted syzkaller #0 PREEMPT(full) 
[  267.536897][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  267.536908][ T6810] Call Trace:
[  267.536915][ T6810]  <TASK>
[  267.536922][ T6810]  dump_stack_lvl+0x189/0x250
[  267.536948][ T6810]  ? __pfx_dump_stack_lvl+0x10/0x10
[  267.536967][ T6810]  ? __pfx__printk+0x10/0x10
[  267.536987][ T6810]  ? kernfs_root+0x1c/0x230
[  267.537005][ T6810]  ? kernfs_path_from_node+0x250/0x290
[  267.537020][ T6810]  ? kernfs_path_from_node+0x2f/0x290
[  267.537036][ T6810]  sysfs_create_dir_ns+0x259/0x280
[  267.537060][ T6810]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.537083][ T6810]  ? do_raw_spin_unlock+0x122/0x240
[  267.537101][ T6810]  kobject_add_internal+0x59f/0xb40
[  267.537125][ T6810]  kobject_init_and_add+0x125/0x190
[  267.537147][ T6810]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.537166][ T6810]  ? __raw_spin_lock_init+0x45/0x100
[  267.537183][ T6810]  ? __init_swait_queue_head+0xa9/0x150
[  267.537201][ T6810]  gfs2_sys_fs_add+0x234/0x450
[  267.537221][ T6810]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.537242][ T6810]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.537263][ T6810]  gfs2_fill_super+0x13c0/0x20d0
[  267.537283][ T6810]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.537299][ T6810]  ? sb_set_blocksize+0x104/0x180
[  267.537319][ T6810]  ? setup_bdev_super+0x4c1/0x5b0
[  267.537338][ T6810]  get_tree_bdev_flags+0x40e/0x4d0
[  267.537356][ T6810]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.537371][ T6810]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.537389][ T6810]  gfs2_get_tree+0x51/0x1e0
[  267.537404][ T6810]  vfs_get_tree+0x92/0x2b0
[  267.537423][ T6810]  do_new_mount+0x2a2/0xa30
[  267.537443][ T6810]  ? ns_capable+0x8a/0xf0
[  267.537465][ T6810]  ? __pfx_do_new_mount+0x10/0x10
[  267.537483][ T6810]  ? path_mount+0x61c/0xfe0
[  267.537499][ T6810]  ? user_path_at+0x44/0x60
[  267.537516][ T6810]  __se_sys_mount+0x317/0x410
[  267.537536][ T6810]  ? __pfx___se_sys_mount+0x10/0x10
[  267.537555][ T6810]  ? rcu_is_watching+0x15/0xb0
[  267.537587][ T6810]  ? __x64_sys_mount+0x20/0xc0
[  267.537605][ T6810]  do_syscall_64+0xfa/0xfa0
[  267.537623][ T6810]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.537638][ T6810]  ? clear_bhb_loop+0x60/0xb0
[  267.537655][ T6810]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.537671][ T6810] RIP: 0033:0x7f6a6df9038a
[  267.537686][ T6810] 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
[  267.537701][ T6810] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.537719][ T6810] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  267.537732][ T6810] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  267.537745][ T6810] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  267.537757][ T6810] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  267.537769][ T6810] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  267.537786][ T6810]  </TASK>
[  267.537804][ T6810] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.853957][ T6810] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.064298][ T6813] loop1: detected capacity change from 0 to 32768
[  268.074791][ T6813] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.082443][ T6813] CPU: 0 UID: 0 PID: 6813 Comm: syz.1.263 Not tainted syzkaller #0 PREEMPT(full) 
[  268.082466][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  268.082477][ T6813] Call Trace:
[  268.082484][ T6813]  <TASK>
[  268.082491][ T6813]  dump_stack_lvl+0x189/0x250
[  268.082526][ T6813]  ? __pfx_dump_stack_lvl+0x10/0x10
[  268.082544][ T6813]  ? __pfx__printk+0x10/0x10
[  268.082563][ T6813]  ? kernfs_root+0x1c/0x230
[  268.082579][ T6813]  ? kernfs_path_from_node+0x250/0x290
[  268.082593][ T6813]  ? kernfs_path_from_node+0x2f/0x290
[  268.082609][ T6813]  sysfs_create_dir_ns+0x259/0x280
[  268.082633][ T6813]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.082655][ T6813]  ? do_raw_spin_unlock+0x122/0x240
[  268.082674][ T6813]  kobject_add_internal+0x59f/0xb40
[  268.082697][ T6813]  kobject_init_and_add+0x125/0x190
[  268.082718][ T6813]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.082735][ T6813]  ? __raw_spin_lock_init+0x45/0x100
[  268.082750][ T6813]  ? __init_swait_queue_head+0xa9/0x150
[  268.082765][ T6813]  gfs2_sys_fs_add+0x234/0x450
[  268.082786][ T6813]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.082809][ T6813]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.082831][ T6813]  gfs2_fill_super+0x13c0/0x20d0
[  268.082854][ T6813]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.082873][ T6813]  ? sb_set_blocksize+0x104/0x180
[  268.082894][ T6813]  ? setup_bdev_super+0x4c1/0x5b0
[  268.082913][ T6813]  get_tree_bdev_flags+0x40e/0x4d0
[  268.082931][ T6813]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.082947][ T6813]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.082970][ T6813]  gfs2_get_tree+0x51/0x1e0
[  268.082988][ T6813]  vfs_get_tree+0x92/0x2b0
[  268.083007][ T6813]  do_new_mount+0x2a2/0xa30
[  268.083026][ T6813]  ? ns_capable+0x8a/0xf0
[  268.083047][ T6813]  ? __pfx_do_new_mount+0x10/0x10
[  268.083067][ T6813]  ? path_mount+0x61c/0xfe0
[  268.083084][ T6813]  ? user_path_at+0x44/0x60
[  268.083104][ T6813]  __se_sys_mount+0x317/0x410
[  268.083126][ T6813]  ? __pfx___se_sys_mount+0x10/0x10
[  268.083146][ T6813]  ? rcu_is_watching+0x15/0xb0
[  268.083167][ T6813]  ? __x64_sys_mount+0x20/0xc0
[  268.083186][ T6813]  do_syscall_64+0xfa/0xfa0
[  268.083205][ T6813]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.083221][ T6813]  ? clear_bhb_loop+0x60/0xb0
[  268.083239][ T6813]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.083255][ T6813] RIP: 0033:0x7f6a6df9038a
[  268.083271][ T6813] 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
[  268.083285][ T6813] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.083304][ T6813] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  268.083317][ T6813] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  268.083329][ T6813] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  268.083341][ T6813] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  268.083353][ T6813] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  268.083371][ T6813]  </TASK>
[  268.083388][ T6813] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.397271][ T6813] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 22:16:14 executed programs: 249
[  268.601830][ T6816] loop1: detected capacity change from 0 to 32768
[  268.609962][ T6816] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.618086][ T6816] CPU: 1 UID: 0 PID: 6816 Comm: syz.1.264 Not tainted syzkaller #0 PREEMPT(full) 
[  268.618110][ T6816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  268.618122][ T6816] Call Trace:
[  268.618136][ T6816]  <TASK>
[  268.618143][ T6816]  dump_stack_lvl+0x189/0x250
[  268.618169][ T6816]  ? __pfx_dump_stack_lvl+0x10/0x10
[  268.618187][ T6816]  ? __pfx__printk+0x10/0x10
[  268.618206][ T6816]  ? kernfs_root+0x1c/0x230
[  268.618224][ T6816]  ? kernfs_path_from_node+0x250/0x290
[  268.618237][ T6816]  ? kernfs_path_from_node+0x2f/0x290
[  268.618254][ T6816]  sysfs_create_dir_ns+0x259/0x280
[  268.618277][ T6816]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.618298][ T6816]  ? do_raw_spin_unlock+0x122/0x240
[  268.618314][ T6816]  kobject_add_internal+0x59f/0xb40
[  268.618335][ T6816]  kobject_init_and_add+0x125/0x190
[  268.618355][ T6816]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.618372][ T6816]  ? __raw_spin_lock_init+0x45/0x100
[  268.618386][ T6816]  ? __init_swait_queue_head+0xa9/0x150
[  268.618400][ T6816]  gfs2_sys_fs_add+0x234/0x450
[  268.618421][ T6816]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.618443][ T6816]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.618463][ T6816]  gfs2_fill_super+0x13c0/0x20d0
[  268.618486][ T6816]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.618504][ T6816]  ? sb_set_blocksize+0x104/0x180
[  268.618525][ T6816]  ? setup_bdev_super+0x4c1/0x5b0
[  268.618543][ T6816]  get_tree_bdev_flags+0x40e/0x4d0
[  268.618560][ T6816]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.618575][ T6816]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.618595][ T6816]  gfs2_get_tree+0x51/0x1e0
[  268.618613][ T6816]  vfs_get_tree+0x92/0x2b0
[  268.618631][ T6816]  do_new_mount+0x2a2/0xa30
[  268.618650][ T6816]  ? ns_capable+0x8a/0xf0
[  268.618679][ T6816]  ? __pfx_do_new_mount+0x10/0x10
[  268.618698][ T6816]  ? path_mount+0x61c/0xfe0
[  268.618716][ T6816]  ? user_path_at+0x44/0x60
[  268.618734][ T6816]  __se_sys_mount+0x317/0x410
[  268.618755][ T6816]  ? __pfx___se_sys_mount+0x10/0x10
[  268.618775][ T6816]  ? rcu_is_watching+0x15/0xb0
[  268.618795][ T6816]  ? __x64_sys_mount+0x20/0xc0
[  268.618814][ T6816]  do_syscall_64+0xfa/0xfa0
[  268.618848][ T6816]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.618867][ T6816]  ? clear_bhb_loop+0x60/0xb0
[  268.618885][ T6816]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.618901][ T6816] RIP: 0033:0x7f6a6df9038a
[  268.618917][ T6816] 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
[  268.618931][ T6816] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.618950][ T6816] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  268.618963][ T6816] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  268.618975][ T6816] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  268.618987][ T6816] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  268.618999][ T6816] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  268.619017][ T6816]  </TASK>
[  268.619034][ T6816] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.932696][ T6816] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.135958][ T6819] loop1: detected capacity change from 0 to 32768
[  269.159678][ T6819] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.168489][ T6819] CPU: 1 UID: 0 PID: 6819 Comm: syz.1.265 Not tainted syzkaller #0 PREEMPT(full) 
[  269.168515][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  269.168527][ T6819] Call Trace:
[  269.168534][ T6819]  <TASK>
[  269.168542][ T6819]  dump_stack_lvl+0x189/0x250
[  269.168567][ T6819]  ? __pfx_dump_stack_lvl+0x10/0x10
[  269.168585][ T6819]  ? __pfx__printk+0x10/0x10
[  269.168612][ T6819]  ? kernfs_root+0x1c/0x230
[  269.168629][ T6819]  ? kernfs_path_from_node+0x250/0x290
[  269.168645][ T6819]  ? kernfs_path_from_node+0x2f/0x290
[  269.168662][ T6819]  sysfs_create_dir_ns+0x259/0x280
[  269.168684][ T6819]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.168706][ T6819]  ? do_raw_spin_unlock+0x122/0x240
[  269.168724][ T6819]  kobject_add_internal+0x59f/0xb40
[  269.168747][ T6819]  kobject_init_and_add+0x125/0x190
[  269.168768][ T6819]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.168787][ T6819]  ? __raw_spin_lock_init+0x45/0x100
[  269.168803][ T6819]  ? __init_swait_queue_head+0xa9/0x150
[  269.168820][ T6819]  gfs2_sys_fs_add+0x234/0x450
[  269.168842][ T6819]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.168866][ T6819]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.168889][ T6819]  gfs2_fill_super+0x13c0/0x20d0
[  269.168913][ T6819]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.168932][ T6819]  ? sb_set_blocksize+0x104/0x180
[  269.168953][ T6819]  ? setup_bdev_super+0x4c1/0x5b0
[  269.168973][ T6819]  get_tree_bdev_flags+0x40e/0x4d0
[  269.168991][ T6819]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.169009][ T6819]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.169031][ T6819]  gfs2_get_tree+0x51/0x1e0
[  269.169049][ T6819]  vfs_get_tree+0x92/0x2b0
[  269.169067][ T6819]  do_new_mount+0x2a2/0xa30
[  269.169089][ T6819]  ? ns_capable+0x8a/0xf0
[  269.169110][ T6819]  ? __pfx_do_new_mount+0x10/0x10
[  269.169129][ T6819]  ? path_mount+0x61c/0xfe0
[  269.169146][ T6819]  ? user_path_at+0x44/0x60
[  269.169165][ T6819]  __se_sys_mount+0x317/0x410
[  269.169186][ T6819]  ? __pfx___se_sys_mount+0x10/0x10
[  269.169208][ T6819]  ? rcu_is_watching+0x15/0xb0
[  269.169229][ T6819]  ? __x64_sys_mount+0x20/0xc0
[  269.169250][ T6819]  do_syscall_64+0xfa/0xfa0
[  269.169268][ T6819]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.169284][ T6819]  ? clear_bhb_loop+0x60/0xb0
[  269.169302][ T6819]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.169318][ T6819] RIP: 0033:0x7f6a6df9038a
[  269.169334][ T6819] 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
[  269.169347][ T6819] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.169367][ T6819] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  269.169379][ T6819] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  269.169391][ T6819] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  269.169403][ T6819] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  269.169415][ T6819] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  269.169434][ T6819]  </TASK>
[  269.169515][ T6819] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.483874][ T6819] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.694828][ T6822] loop1: detected capacity change from 0 to 32768
[  269.704985][ T6822] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.712490][ T6822] CPU: 0 UID: 0 PID: 6822 Comm: syz.1.266 Not tainted syzkaller #0 PREEMPT(full) 
[  269.712511][ T6822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  269.712521][ T6822] Call Trace:
[  269.712528][ T6822]  <TASK>
[  269.712534][ T6822]  dump_stack_lvl+0x189/0x250
[  269.712557][ T6822]  ? __pfx_dump_stack_lvl+0x10/0x10
[  269.712575][ T6822]  ? __pfx__printk+0x10/0x10
[  269.712603][ T6822]  ? kernfs_root+0x1c/0x230
[  269.712620][ T6822]  ? kernfs_path_from_node+0x250/0x290
[  269.712634][ T6822]  ? kernfs_path_from_node+0x2f/0x290
[  269.712650][ T6822]  sysfs_create_dir_ns+0x259/0x280
[  269.712673][ T6822]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.712695][ T6822]  ? do_raw_spin_unlock+0x122/0x240
[  269.712714][ T6822]  kobject_add_internal+0x59f/0xb40
[  269.712739][ T6822]  kobject_init_and_add+0x125/0x190
[  269.712762][ T6822]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.712782][ T6822]  ? __raw_spin_lock_init+0x45/0x100
[  269.712799][ T6822]  ? __init_swait_queue_head+0xa9/0x150
[  269.712817][ T6822]  gfs2_sys_fs_add+0x234/0x450
[  269.712839][ T6822]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.712863][ T6822]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.712885][ T6822]  gfs2_fill_super+0x13c0/0x20d0
[  269.712909][ T6822]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.712929][ T6822]  ? sb_set_blocksize+0x104/0x180
[  269.712949][ T6822]  ? setup_bdev_super+0x4c1/0x5b0
[  269.712969][ T6822]  get_tree_bdev_flags+0x40e/0x4d0
[  269.712988][ T6822]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.713005][ T6822]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.713027][ T6822]  gfs2_get_tree+0x51/0x1e0
[  269.713045][ T6822]  vfs_get_tree+0x92/0x2b0
[  269.713064][ T6822]  do_new_mount+0x2a2/0xa30
[  269.713085][ T6822]  ? ns_capable+0x8a/0xf0
[  269.713105][ T6822]  ? __pfx_do_new_mount+0x10/0x10
[  269.713124][ T6822]  ? path_mount+0x61c/0xfe0
[  269.713140][ T6822]  ? user_path_at+0x44/0x60
[  269.713159][ T6822]  __se_sys_mount+0x317/0x410
[  269.713181][ T6822]  ? __pfx___se_sys_mount+0x10/0x10
[  269.713201][ T6822]  ? rcu_is_watching+0x15/0xb0
[  269.713222][ T6822]  ? __x64_sys_mount+0x20/0xc0
[  269.713241][ T6822]  do_syscall_64+0xfa/0xfa0
[  269.713260][ T6822]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.713276][ T6822]  ? clear_bhb_loop+0x60/0xb0
[  269.713294][ T6822]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.713309][ T6822] RIP: 0033:0x7f6a6df9038a
[  269.713325][ T6822] 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
[  269.713338][ T6822] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.713356][ T6822] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  269.713369][ T6822] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  269.713381][ T6822] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  269.713393][ T6822] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  269.713404][ T6822] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  269.713423][ T6822]  </TASK>
[  269.713441][ T6822] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.027095][ T6822] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.100559][   T31] INFO: task syz.0.17:6031 blocked for more than 143 seconds.
[  270.112691][   T31]       Not tainted syzkaller #0
[  270.117658][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  270.128105][   T31] task:syz.0.17        state:D stack:23608 pid:6031  tgid:6031  ppid:5972   task_flags:0x400140 flags:0x00004004
[  270.142464][   T31] Call Trace:
[  270.145773][   T31]  <TASK>
[  270.148707][   T31]  __schedule+0x1798/0x4cc0
[  270.153678][   T31]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[  270.160032][   T31]  ? __pfx___schedule+0x10/0x10
[  270.165825][   T31]  ? do_raw_spin_lock+0x121/0x290
[  270.171559][   T31]  ? schedule+0x91/0x360
[  270.175899][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.180984][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.186419][   T31]  ? lock_release+0x4b/0x3e0
[  270.191866][   T31]  schedule+0x165/0x360
[  270.196037][   T31]  io_schedule+0x80/0xd0
[  270.201114][   T31]  folio_wait_bit_common+0x6b0/0xb90
[  270.206414][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.211990][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  270.217808][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  270.223590][   T31]  ? unwind_next_frame+0xa5/0x2390
[  270.228707][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.234427][   T31]  ? unwind_next_frame+0xa5/0x2390
[  270.239561][   T31]  writeback_iter+0x8d8/0x12a0
[  270.245046][   T31]  iomap_writepages+0x14d/0x2d0
[  270.249945][   T31]  ? __pfx_iomap_writepages+0x10/0x10
[  270.256426][   T31]  ? folio_mark_accessed+0x42c/0x8b0
[  270.261982][   T31]  gfs2_writepages+0x177/0x250
[  270.266854][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  270.273645][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  270.279031][   T31]  do_writepages+0x32e/0x550
[  270.283967][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.289550][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  270.295849][   T31]  filemap_fdatawrite+0x199/0x240
[  270.301266][   T31]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  270.306849][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.313047][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  270.318427][   T31]  gfs2_log_flush+0x966/0x24c0
[  270.323637][   T31]  ? __pfx_gfs2_log_flush+0x10/0x10
[  270.328855][   T31]  ? __pfx___up_read+0x10/0x10
[  270.334876][   T31]  gfs2_trans_end+0x37c/0x570
[  270.335883][ T6825] loop1: detected capacity change from 0 to 32768
[  270.339610][   T31]  gfs2_page_mkwrite+0x14a8/0x1910
[  270.351795][   T31]  ? do_page_mkwrite+0x14d/0x310
[  270.356748][   T31]  ? __pfx_gfs2_page_mkwrite+0x10/0x10
[  270.362483][   T31]  ? gfs2_fault+0x19a/0x1f0
[  270.367055][   T31]  ? do_page_mkwrite+0x14d/0x310
[  270.372117][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.376950][   T31]  do_page_mkwrite+0x14d/0x310
[  270.377116][ T6825] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.381820][   T31]  __handle_mm_fault+0x1916/0x5400
[  270.394511][   T31]  ? __pfx___handle_mm_fault+0x10/0x10
[  270.399987][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.404851][   T31]  ? lock_vma_under_rcu+0x3cb/0x450
[  270.405219][ T6825] CPU: 1 UID: 0 PID: 6825 Comm: syz.1.267 Not tainted syzkaller #0 PREEMPT(full) 
[  270.405239][ T6825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  270.405251][ T6825] Call Trace:
[  270.405258][ T6825]  <TASK>
[  270.405266][ T6825]  dump_stack_lvl+0x189/0x250
[  270.405288][ T6825]  ? __pfx_dump_stack_lvl+0x10/0x10
[  270.405306][ T6825]  ? __pfx__printk+0x10/0x10
[  270.405325][ T6825]  ? kernfs_root+0x1c/0x230
[  270.405343][ T6825]  ? kernfs_path_from_node+0x250/0x290
[  270.405356][ T6825]  ? kernfs_path_from_node+0x2f/0x290
[  270.405373][ T6825]  sysfs_create_dir_ns+0x259/0x280
[  270.405395][ T6825]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.405416][ T6825]  ? do_raw_spin_unlock+0x122/0x240
[  270.405434][ T6825]  kobject_add_internal+0x59f/0xb40
[  270.405457][ T6825]  kobject_init_and_add+0x125/0x190
[  270.405478][ T6825]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.405497][ T6825]  ? __raw_spin_lock_init+0x45/0x100
[  270.405513][ T6825]  ? __init_swait_queue_head+0xa9/0x150
[  270.405530][ T6825]  gfs2_sys_fs_add+0x234/0x450
[  270.405552][ T6825]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.405576][ T6825]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.405598][ T6825]  gfs2_fill_super+0x13c0/0x20d0
[  270.405621][ T6825]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.405640][ T6825]  ? sb_set_blocksize+0x104/0x180
[  270.405660][ T6825]  ? setup_bdev_super+0x4c1/0x5b0
[  270.405680][ T6825]  get_tree_bdev_flags+0x40e/0x4d0
[  270.405697][ T6825]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.405714][ T6825]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.405736][ T6825]  gfs2_get_tree+0x51/0x1e0
[  270.405753][ T6825]  vfs_get_tree+0x92/0x2b0
[  270.405772][ T6825]  do_new_mount+0x2a2/0xa30
[  270.405793][ T6825]  ? ns_capable+0x8a/0xf0
[  270.405813][ T6825]  ? __pfx_do_new_mount+0x10/0x10
[  270.405831][ T6825]  ? path_mount+0x61c/0xfe0
[  270.405857][ T6825]  ? user_path_at+0x44/0x60
[  270.405876][ T6825]  __se_sys_mount+0x317/0x410
[  270.405897][ T6825]  ? __pfx___se_sys_mount+0x10/0x10
[  270.405917][ T6825]  ? rcu_is_watching+0x15/0xb0
[  270.405937][ T6825]  ? __x64_sys_mount+0x20/0xc0
[  270.405957][ T6825]  do_syscall_64+0xfa/0xfa0
[  270.405976][ T6825]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.405992][ T6825]  ? clear_bhb_loop+0x60/0xb0
[  270.406009][ T6825]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.406025][ T6825] RIP: 0033:0x7f6a6df9038a
[  270.406040][ T6825] 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
[  270.406055][ T6825] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.406074][ T6825] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  270.406087][ T6825] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  270.406099][ T6825] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  270.406111][ T6825] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  270.406122][ T6825] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  270.406141][ T6825]  </TASK>
[  270.406158][ T6825] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.410053][   T31]  ? __pfx_do_futex+0x10/0x10
[  270.432969][ T6825] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.435613][   T31]  ? __pfx_lock_vma_under_rcu+0x10/0x10
[  270.740418][   T31]  handle_mm_fault+0x40a/0x8e0
[  270.745230][   T31]  do_user_addr_fault+0xa81/0x1390
[  270.750386][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.755157][   T31]  ? trace_page_fault_user+0x84/0x1e0
[  270.760609][   T31]  exc_page_fault+0x82/0x100
[  270.765212][   T31]  asm_exc_page_fault+0x26/0x30
[  270.770069][   T31] RIP: 0033:0x7f7e1d6550b3
[  270.774536][   T31] RSP: 002b:00007ffefd79ea80 EFLAGS: 00010246
[  270.780652][   T31] RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
[  270.788631][   T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000555593c0b3c8
[  270.796654][   T31] RBP: 00007ffefd79eb88 R08: 0000000000000000 R09: 0000000000000000
[  270.804893][   T31] R10: 0000000000000000 R11: 0000000000000000 R12: 00007f7e1d9b5fac
[  270.812922][   T31] R13: 00007f7e1d9b5fa0 R14: fffffffffffffffe R15: 0000000000000006
[  270.819286][ T6828] loop1: detected capacity change from 0 to 32768
[  270.820967][   T31]  </TASK>
[  270.821000][   T31] INFO: lockdep is turned off.
[  270.821023][   T31] NMI backtrace for cpu 0
[  270.821036][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  270.821054][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  270.821065][   T31] Call Trace:
[  270.821073][   T31]  <TASK>
[  270.821079][   T31]  dump_stack_lvl+0x189/0x250
[  270.821103][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  270.821190][   T31]  ? __pfx__printk+0x10/0x10
[  270.821215][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  270.821238][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  270.821261][   T31]  ? __pfx__printk+0x10/0x10
[  270.821282][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  270.821306][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  270.821331][   T31]  watchdog+0xf60/0xfa0
[  270.821353][   T31]  ? watchdog+0x1e2/0xfa0
[  270.821374][   T31]  kthread+0x711/0x8a0
[  270.821391][   T31]  ? __pfx_watchdog+0x10/0x10
[  270.821409][   T31]  ? __pfx_kthread+0x10/0x10
[  270.821425][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  270.821443][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  270.821461][   T31]  ? __pfx_kthread+0x10/0x10
[  270.821480][   T31]  ret_from_fork+0x47c/0x820
[  270.821503][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  270.821527][   T31]  ? __switch_to_asm+0x39/0x70
[  270.821547][   T31]  ? __switch_to_asm+0x33/0x70
[  270.821567][   T31]  ? __pfx_kthread+0x10/0x10
[  270.821584][   T31]  ret_from_fork_asm+0x1a/0x30
[  270.821610][   T31]  </TASK>
[  270.821618][   T31] Sending NMI from CPU 0 to CPUs 1:
[  270.913108][ T6828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.915825][    C1] NMI backtrace for cpu 1
[  270.915838][    C1] CPU: 1 UID: 0 PID: 6828 Comm: syz.1.268 Not tainted syzkaller #0 PREEMPT(full) 
[  270.915856][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  270.915867][    C1] RIP: 0010:io_serial_in+0x77/0xc0
[  270.915888][    C1] Code: e8 1e 6e 6d fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 cf 17 d1 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[  270.915902][    C1] RSP: 0018:ffffc90004977098 EFLAGS: 00000006
[  270.915917][    C1] RAX: 1ffffffff3401505 RBX: 00000000000003f9 RCX: 0000000000000000
[  270.915928][    C1] RDX: 00000000000003f9 RSI: 0000000000000000 RDI: 0000000000000020
[  270.915939][    C1] RBP: ffffc90004977270 R08: 0000000000000003 R09: 0000000000000004
[  270.915949][    C1] R10: dffffc0000000000 R11: ffffffff85532060 R12: dffffc0000000000
[  270.915961][    C1] R13: dffffc0000000000 R14: ffffffff9a00af20 R15: 0000000000000000
[  270.915973][    C1] FS:  000055555a700500(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
[  270.915987][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  270.915999][    C1] CR2: 00007fdeda223000 CR3: 000000007fb30000 CR4: 00000000003526f0
[  270.916013][    C1] Call Trace:
[  270.916020][    C1]  <TASK>
[  270.916028][    C1]  serial8250_console_write+0x581/0x1ba0
[  270.916048][    C1]  ? format_decode+0xd9/0xe30
[  270.916070][    C1]  ? __pfx_serial8250_console_write+0x10/0x10
[  270.916086][    C1]  ? console_flush_all+0x13a/0xc40
[  270.916102][    C1]  ? rcu_is_watching+0x15/0xb0
[  270.916120][    C1]  ? lock_acquire+0x5f/0x360
[  270.916140][    C1]  ? do_raw_spin_unlock+0x122/0x240
[  270.916154][    C1]  ? console_flush_all+0x13a/0xc40
[  270.916168][    C1]  ? console_flush_all+0x13a/0xc40
[  270.916183][    C1]  console_flush_all+0x725/0xc40
[  270.916199][    C1]  ? console_flush_all+0x13a/0xc40
[  270.916216][    C1]  ? __pfx_console_flush_all+0x10/0x10
[  270.916234][    C1]  ? is_printk_cpu_sync_owner+0x32/0x40
[  270.916252][    C1]  console_unlock+0xc4/0x270
[  270.916272][    C1]  ? __pfx_console_unlock+0x10/0x10
[  270.916290][    C1]  ? vprintk_emit+0x444/0x7a0
[  270.916310][    C1]  ? vprintk_emit+0x444/0x7a0
[  270.916327][    C1]  ? vprintk_emit+0x444/0x7a0
[  270.916347][    C1]  vprintk_emit+0x5b7/0x7a0
[  270.916365][    C1]  ? vprintk_emit+0x444/0x7a0
[  270.916392][    C1]  ? __pfx_vprintk_emit+0x10/0x10
[  270.916411][    C1]  ? __pfx_scnprintf+0x10/0x10
[  270.916430][    C1]  ? rcu_is_watching+0x15/0xb0
[  270.916449][    C1]  ? rcu_is_watching+0x15/0xb0
[  270.916470][    C1]  _printk+0xcf/0x120
[  270.916490][    C1]  ? __pfx__printk+0x10/0x10
[  270.916507][    C1]  ? kernfs_root+0x1c/0x230
[  270.916523][    C1]  ? kernfs_path_from_node+0x250/0x290
[  270.916536][    C1]  ? kernfs_path_from_node+0x2f/0x290
[  270.916551][    C1]  sysfs_create_dir_ns+0x254/0x280
[  270.916571][    C1]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.916591][    C1]  ? do_raw_spin_unlock+0x122/0x240
[  270.916608][    C1]  kobject_add_internal+0x59f/0xb40
[  270.916629][    C1]  kobject_init_and_add+0x125/0x190
[  270.916649][    C1]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.916667][    C1]  ? __raw_spin_lock_init+0x45/0x100
[  270.916683][    C1]  ? __init_swait_queue_head+0xa9/0x150
[  270.916699][    C1]  gfs2_sys_fs_add+0x234/0x450
[  270.916719][    C1]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.916740][    C1]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.916762][    C1]  gfs2_fill_super+0x13c0/0x20d0
[  270.916783][    C1]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.916801][    C1]  ? sb_set_blocksize+0x104/0x180
[  270.916820][    C1]  ? setup_bdev_super+0x4c1/0x5b0
[  270.916837][    C1]  get_tree_bdev_flags+0x40e/0x4d0
[  270.916854][    C1]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.916870][    C1]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.916890][    C1]  gfs2_get_tree+0x51/0x1e0
[  270.916907][    C1]  vfs_get_tree+0x92/0x2b0
[  270.916924][    C1]  do_new_mount+0x2a2/0xa30
[  270.916942][    C1]  ? ns_capable+0x8a/0xf0
[  270.916961][    C1]  ? __pfx_do_new_mount+0x10/0x10
[  270.916977][    C1]  ? path_mount+0x61c/0xfe0
[  270.916993][    C1]  ? user_path_at+0x44/0x60
[  270.917011][    C1]  __se_sys_mount+0x317/0x410
[  270.917030][    C1]  ? __pfx___se_sys_mount+0x10/0x10
[  270.917049][    C1]  ? rcu_is_watching+0x15/0xb0
[  270.917067][    C1]  ? __x64_sys_mount+0x20/0xc0
[  270.917085][    C1]  do_syscall_64+0xfa/0xfa0
[  270.917101][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.917117][    C1]  ? clear_bhb_loop+0x60/0xb0
[  270.917133][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.917148][    C1] RIP: 0033:0x7f6a6df9038a
[  270.917161][    C1] 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
[  270.917175][    C1] RSP: 002b:00007fff043724a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.917191][    C1] RAX: ffffffffffffffda RBX: 00007fff04372530 RCX: 00007f6a6df9038a
[  270.917203][    C1] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fff043724f0
[  270.917214][    C1] RBP: 000020000001f680 R08: 00007fff04372530 R09: 0000000000000094
[  270.917225][    C1] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  270.917235][    C1] R13: 00007fff043724f0 R14: 000000000001f790 R15: 00002000000001c0
[  270.917252][    C1]  </TASK>
[  270.917970][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  270.917983][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  270.918002][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  270.918014][   T31] Call Trace:
[  270.918021][   T31]  <TASK>
[  270.918029][   T31]  dump_stack_lvl+0x99/0x250
[  270.918050][   T31]  ? __asan_memcpy+0x40/0x70
[  270.918067][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  270.918085][   T31]  ? __pfx__printk+0x10/0x10
[  270.918110][   T31]  vpanic+0x281/0x750
[  270.918137][   T31]  ? __pfx_vpanic+0x10/0x10
[  270.918154][   T31]  ? rcu_is_watching+0x15/0xb0
[  270.918174][   T31]  ? preempt_schedule+0xae/0xc0
[  270.918192][   T31]  ? preempt_schedule_common+0x83/0xd0
[  270.918213][   T31]  panic+0xb9/0xc0
[  270.918230][   T31]  ? __pfx_panic+0x10/0x10
[  270.918248][   T31]  ? preempt_schedule_thunk+0x16/0x30
[  270.918266][   T31]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  270.918290][   T31]  watchdog+0xf9f/0xfa0
[  270.918311][   T31]  ? watchdog+0x1e2/0xfa0
[  270.918331][   T31]  kthread+0x711/0x8a0
[  270.918349][   T31]  ? __pfx_watchdog+0x10/0x10
[  270.918367][   T31]  ? __pfx_kthread+0x10/0x10
[  270.918383][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  270.918401][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  270.918419][   T31]  ? __pfx_kthread+0x10/0x10
[  270.918435][   T31]  ret_from_fork+0x47c/0x820
[  270.918459][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  270.918482][   T31]  ? __switch_to_asm+0x39/0x70
[  270.918502][   T31]  ? __switch_to_asm+0x33/0x70
[  270.918521][   T31]  ? __pfx_kthread+0x10/0x10
[  270.918538][   T31]  ret_from_fork_asm+0x1a/0x30
[  270.918565][   T31]  </TASK>
[  270.921557][   T31] Kernel Offset: disabled