6]  ? __pfx_kobject_init_and_add+0x10/0x10
[  215.769683][ T6676]  ? __raw_spin_lock_init+0x45/0x100
[  215.769701][ T6676]  ? __init_swait_queue_head+0xa9/0x150
[  215.769719][ T6676]  gfs2_sys_fs_add+0x234/0x450
[  215.769747][ T6676]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  215.769775][ T6676]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  215.769806][ T6676]  gfs2_fill_super+0x13c0/0x20d0
[  215.769830][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  215.769850][ T6676]  ? sb_set_blocksize+0x104/0x180
[  215.769874][ T6676]  ? setup_bdev_super+0x4c1/0x5b0
[  215.769897][ T6676]  get_tree_bdev_flags+0x40e/0x4d0
[  215.769929][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  215.769950][ T6676]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  215.769976][ T6676]  gfs2_get_tree+0x51/0x1e0
[  215.769998][ T6676]  vfs_get_tree+0x92/0x2b0
[  215.770021][ T6676]  do_new_mount+0x2a2/0xa30
[  215.770047][ T6676]  ? ns_capable+0x8a/0xf0
[  215.770073][ T6676]  ? __pfx_do_new_mount+0x10/0x10
[  215.770095][ T6676]  ? path_mount+0x61c/0xfe0
[  215.770116][ T6676]  ? user_path_at+0x44/0x60
[  215.770136][ T6676]  __se_sys_mount+0x317/0x410
[  215.770161][ T6676]  ? __pfx___se_sys_mount+0x10/0x10
[  215.770185][ T6676]  ? rcu_is_watching+0x15/0xb0
[  215.770211][ T6676]  ? __x64_sys_mount+0x20/0xc0
[  215.770236][ T6676]  do_syscall_64+0xfa/0xfa0
[  215.770257][ T6676]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  215.770276][ T6676]  ? clear_bhb_loop+0x60/0xb0
[  215.770297][ T6676]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  215.770316][ T6676] RIP: 0033:0x7f2fdbf9038a
[  215.770334][ T6676] 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
[  215.770350][ T6676] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  215.770372][ T6676] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  215.770387][ T6676] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  215.770401][ T6676] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  215.770414][ T6676] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  215.770427][ T6676] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  215.770446][ T6676]  </TASK>
[  216.076522][ T6676] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  216.091476][ T6676] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  216.324816][ T6679] loop1: detected capacity change from 0 to 32768
[  216.339574][ T6679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  216.347427][ T6679] CPU: 1 UID: 0 PID: 6679 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT(full) 
[  216.347453][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  216.347465][ T6679] Call Trace:
[  216.347473][ T6679]  <TASK>
[  216.347481][ T6679]  dump_stack_lvl+0x189/0x250
[  216.347510][ T6679]  ? __pfx_dump_stack_lvl+0x10/0x10
[  216.347532][ T6679]  ? __pfx__printk+0x10/0x10
[  216.347555][ T6679]  ? kernfs_root+0x1c/0x230
[  216.347575][ T6679]  ? kernfs_path_from_node+0x250/0x290
[  216.347591][ T6679]  ? kernfs_path_from_node+0x2f/0x290
[  216.347609][ T6679]  sysfs_create_dir_ns+0x259/0x280
[  216.347636][ T6679]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  216.347662][ T6679]  ? do_raw_spin_unlock+0x122/0x240
[  216.347684][ T6679]  kobject_add_internal+0x59f/0xb40
[  216.347712][ T6679]  kobject_init_and_add+0x125/0x190
[  216.347736][ T6679]  ? __pfx_kobject_init_and_add+0x10/0x10
[  216.347760][ T6679]  ? __raw_spin_lock_init+0x45/0x100
[  216.347779][ T6679]  ? __init_swait_queue_head+0xa9/0x150
[  216.347797][ T6679]  gfs2_sys_fs_add+0x234/0x450
[  216.347825][ T6679]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  216.347854][ T6679]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  216.347881][ T6679]  gfs2_fill_super+0x13c0/0x20d0
[  216.347907][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  216.347927][ T6679]  ? sb_set_blocksize+0x104/0x180
[  216.347951][ T6679]  ? setup_bdev_super+0x4c1/0x5b0
[  216.347974][ T6679]  get_tree_bdev_flags+0x40e/0x4d0
[  216.347996][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  216.348015][ T6679]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  216.348040][ T6679]  gfs2_get_tree+0x51/0x1e0
[  216.348063][ T6679]  vfs_get_tree+0x92/0x2b0
[  216.348084][ T6679]  do_new_mount+0x2a2/0xa30
[  216.348108][ T6679]  ? ns_capable+0x8a/0xf0
[  216.348133][ T6679]  ? __pfx_do_new_mount+0x10/0x10
[  216.348164][ T6679]  ? path_mount+0x61c/0xfe0
[  216.348186][ T6679]  ? user_path_at+0x44/0x60
[  216.348208][ T6679]  __se_sys_mount+0x317/0x410
[  216.348233][ T6679]  ? __pfx___se_sys_mount+0x10/0x10
[  216.348256][ T6679]  ? rcu_is_watching+0x15/0xb0
[  216.348281][ T6679]  ? __x64_sys_mount+0x20/0xc0
[  216.348304][ T6679]  do_syscall_64+0xfa/0xfa0
[  216.348326][ T6679]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  216.348345][ T6679]  ? clear_bhb_loop+0x60/0xb0
[  216.348366][ T6679]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  216.348383][ T6679] RIP: 0033:0x7f2fdbf9038a
[  216.348400][ T6679] 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
[  216.348416][ T6679] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  216.348438][ T6679] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  216.348452][ T6679] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  216.348466][ T6679] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  216.348479][ T6679] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  216.348491][ T6679] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  216.348512][ T6679]  </TASK>
[  216.348532][ T6679] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  216.666567][ T6679] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  216.901030][ T6682] loop1: detected capacity change from 0 to 32768
[  216.915476][ T6682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  216.923288][ T6682] CPU: 1 UID: 0 PID: 6682 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT(full) 
[  216.923314][ T6682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  216.923326][ T6682] Call Trace:
[  216.923333][ T6682]  <TASK>
[  216.923340][ T6682]  dump_stack_lvl+0x189/0x250
[  216.923369][ T6682]  ? __pfx_dump_stack_lvl+0x10/0x10
[  216.923390][ T6682]  ? __pfx__printk+0x10/0x10
[  216.923412][ T6682]  ? kernfs_root+0x1c/0x230
[  216.923431][ T6682]  ? kernfs_path_from_node+0x250/0x290
[  216.923447][ T6682]  ? kernfs_path_from_node+0x2f/0x290
[  216.923465][ T6682]  sysfs_create_dir_ns+0x259/0x280
[  216.923491][ T6682]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  216.923516][ T6682]  ? do_raw_spin_unlock+0x122/0x240
[  216.923538][ T6682]  kobject_add_internal+0x59f/0xb40
[  216.923564][ T6682]  kobject_init_and_add+0x125/0x190
[  216.923588][ T6682]  ? __pfx_kobject_init_and_add+0x10/0x10
[  216.923611][ T6682]  ? __raw_spin_lock_init+0x45/0x100
[  216.923630][ T6682]  ? __init_swait_queue_head+0xa9/0x150
[  216.923650][ T6682]  gfs2_sys_fs_add+0x234/0x450
[  216.923677][ T6682]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  216.923704][ T6682]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  216.923730][ T6682]  gfs2_fill_super+0x13c0/0x20d0
[  216.923755][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  216.923777][ T6682]  ? sb_set_blocksize+0x104/0x180
[  216.923800][ T6682]  ? setup_bdev_super+0x4c1/0x5b0
[  216.923824][ T6682]  get_tree_bdev_flags+0x40e/0x4d0
[  216.923845][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  216.923865][ T6682]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  216.923891][ T6682]  gfs2_get_tree+0x51/0x1e0
[  216.923911][ T6682]  vfs_get_tree+0x92/0x2b0
[  216.923932][ T6682]  do_new_mount+0x2a2/0xa30
[  216.923956][ T6682]  ? ns_capable+0x8a/0xf0
[  216.923981][ T6682]  ? __pfx_do_new_mount+0x10/0x10
[  216.924001][ T6682]  ? path_mount+0x61c/0xfe0
[  216.924022][ T6682]  ? user_path_at+0x44/0x60
[  216.924042][ T6682]  __se_sys_mount+0x317/0x410
[  216.924068][ T6682]  ? __pfx___se_sys_mount+0x10/0x10
[  216.924093][ T6682]  ? rcu_is_watching+0x15/0xb0
[  216.924118][ T6682]  ? __x64_sys_mount+0x20/0xc0
[  216.924141][ T6682]  do_syscall_64+0xfa/0xfa0
[  216.924163][ T6682]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  216.924181][ T6682]  ? clear_bhb_loop+0x60/0xb0
[  216.924214][ T6682]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  216.924232][ T6682] RIP: 0033:0x7f2fdbf9038a
[  216.924250][ T6682] 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
[  216.924266][ T6682] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  216.924289][ T6682] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  216.924304][ T6682] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  216.924317][ T6682] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  216.924330][ T6682] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  216.924342][ T6682] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  216.924364][ T6682]  </TASK>
[  216.924384][ T6682] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  217.241699][ T6682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  217.473494][ T6685] loop1: detected capacity change from 0 to 32768
[  217.485969][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  217.493860][ T6685] CPU: 0 UID: 0 PID: 6685 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT(full) 
[  217.493886][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  217.493908][ T6685] Call Trace:
[  217.493916][ T6685]  <TASK>
[  217.493924][ T6685]  dump_stack_lvl+0x189/0x250
[  217.493954][ T6685]  ? __pfx_dump_stack_lvl+0x10/0x10
[  217.493977][ T6685]  ? __pfx__printk+0x10/0x10
[  217.494000][ T6685]  ? kernfs_root+0x1c/0x230
[  217.494020][ T6685]  ? kernfs_path_from_node+0x250/0x290
[  217.494035][ T6685]  ? kernfs_path_from_node+0x2f/0x290
[  217.494054][ T6685]  sysfs_create_dir_ns+0x259/0x280
[  217.494082][ T6685]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  217.494107][ T6685]  ? do_raw_spin_unlock+0x122/0x240
[  217.494129][ T6685]  kobject_add_internal+0x59f/0xb40
[  217.494156][ T6685]  kobject_init_and_add+0x125/0x190
[  217.494181][ T6685]  ? __pfx_kobject_init_and_add+0x10/0x10
[  217.494202][ T6685]  ? __raw_spin_lock_init+0x45/0x100
[  217.494221][ T6685]  ? __init_swait_queue_head+0xa9/0x150
[  217.494241][ T6685]  gfs2_sys_fs_add+0x234/0x450
[  217.494268][ T6685]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  217.494296][ T6685]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  217.494323][ T6685]  gfs2_fill_super+0x13c0/0x20d0
[  217.494349][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  217.494371][ T6685]  ? sb_set_blocksize+0x104/0x180
[  217.494395][ T6685]  ? setup_bdev_super+0x4c1/0x5b0
[  217.494419][ T6685]  get_tree_bdev_flags+0x40e/0x4d0
[  217.494441][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  217.494460][ T6685]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  217.494485][ T6685]  gfs2_get_tree+0x51/0x1e0
[  217.494507][ T6685]  vfs_get_tree+0x92/0x2b0
[  217.494528][ T6685]  do_new_mount+0x2a2/0xa30
[  217.494554][ T6685]  ? ns_capable+0x8a/0xf0
[  217.494578][ T6685]  ? __pfx_do_new_mount+0x10/0x10
[  217.494600][ T6685]  ? path_mount+0x61c/0xfe0
[  217.494620][ T6685]  ? user_path_at+0x44/0x60
[  217.494640][ T6685]  __se_sys_mount+0x317/0x410
[  217.494666][ T6685]  ? __pfx___se_sys_mount+0x10/0x10
[  217.494691][ T6685]  ? rcu_is_watching+0x15/0xb0
[  217.494715][ T6685]  ? __x64_sys_mount+0x20/0xc0
[  217.494739][ T6685]  do_syscall_64+0xfa/0xfa0
[  217.494761][ T6685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  217.494779][ T6685]  ? clear_bhb_loop+0x60/0xb0
[  217.494800][ T6685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  217.494818][ T6685] RIP: 0033:0x7f2fdbf9038a
[  217.494836][ T6685] 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
[  217.494852][ T6685] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  217.494873][ T6685] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  217.494888][ T6685] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  217.494911][ T6685] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  217.494924][ T6685] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  217.494936][ T6685] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  217.494956][ T6685]  </TASK>
[  217.494976][ T6685] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  217.814474][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  218.052342][ T6688] loop1: detected capacity change from 0 to 32768
[  218.073005][ T6688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  218.080709][ T6688] CPU: 1 UID: 0 PID: 6688 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT(full) 
[  218.080734][ T6688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  218.080746][ T6688] Call Trace:
[  218.080754][ T6688]  <TASK>
[  218.080762][ T6688]  dump_stack_lvl+0x189/0x250
[  218.080789][ T6688]  ? __pfx_dump_stack_lvl+0x10/0x10
[  218.080810][ T6688]  ? __pfx__printk+0x10/0x10
[  218.080831][ T6688]  ? kernfs_root+0x1c/0x230
[  218.080850][ T6688]  ? kernfs_path_from_node+0x250/0x290
[  218.080865][ T6688]  ? kernfs_path_from_node+0x2f/0x290
[  218.080883][ T6688]  sysfs_create_dir_ns+0x259/0x280
[  218.080919][ T6688]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  218.080942][ T6688]  ? do_raw_spin_unlock+0x122/0x240
[  218.080965][ T6688]  kobject_add_internal+0x59f/0xb40
[  218.080992][ T6688]  kobject_init_and_add+0x125/0x190
[  218.081016][ T6688]  ? __pfx_kobject_init_and_add+0x10/0x10
[  218.081038][ T6688]  ? __raw_spin_lock_init+0x45/0x100
[  218.081056][ T6688]  ? __init_swait_queue_head+0xa9/0x150
[  218.081074][ T6688]  gfs2_sys_fs_add+0x234/0x450
[  218.081100][ T6688]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  218.081127][ T6688]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  218.081151][ T6688]  gfs2_fill_super+0x13c0/0x20d0
[  218.081175][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  218.081197][ T6688]  ? sb_set_blocksize+0x104/0x180
[  218.081220][ T6688]  ? setup_bdev_super+0x4c1/0x5b0
[  218.081244][ T6688]  get_tree_bdev_flags+0x40e/0x4d0
[  218.081265][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  218.081285][ T6688]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  218.081311][ T6688]  gfs2_get_tree+0x51/0x1e0
[  218.081331][ T6688]  vfs_get_tree+0x92/0x2b0
[  218.081353][ T6688]  do_new_mount+0x2a2/0xa30
[  218.081378][ T6688]  ? ns_capable+0x8a/0xf0
[  218.081403][ T6688]  ? __pfx_do_new_mount+0x10/0x10
[  218.081426][ T6688]  ? path_mount+0x61c/0xfe0
[  218.081446][ T6688]  ? user_path_at+0x44/0x60
[  218.081466][ T6688]  __se_sys_mount+0x317/0x410
[  218.081491][ T6688]  ? __pfx___se_sys_mount+0x10/0x10
[  218.081516][ T6688]  ? rcu_is_watching+0x15/0xb0
[  218.081541][ T6688]  ? __x64_sys_mount+0x20/0xc0
[  218.081565][ T6688]  do_syscall_64+0xfa/0xfa0
[  218.081588][ T6688]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  218.081606][ T6688]  ? clear_bhb_loop+0x60/0xb0
[  218.081627][ T6688]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  218.081645][ T6688] RIP: 0033:0x7f2fdbf9038a
[  218.081663][ T6688] 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
[  218.081681][ T6688] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  218.081702][ T6688] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  218.081717][ T6688] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  218.081731][ T6688] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  218.081744][ T6688] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  218.081757][ T6688] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  218.081778][ T6688]  </TASK>
[  218.081829][ T6688] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  218.398528][ T6688] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  218.627074][ T6691] loop1: detected capacity change from 0 to 32768
[  218.640507][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  218.648290][ T6691] CPU: 1 UID: 0 PID: 6691 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT(full) 
[  218.648318][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  218.648330][ T6691] Call Trace:
[  218.648337][ T6691]  <TASK>
[  218.648346][ T6691]  dump_stack_lvl+0x189/0x250
[  218.648375][ T6691]  ? __pfx_dump_stack_lvl+0x10/0x10
[  218.648398][ T6691]  ? __pfx__printk+0x10/0x10
[  218.648421][ T6691]  ? kernfs_root+0x1c/0x230
[  218.648440][ T6691]  ? kernfs_path_from_node+0x250/0x290
[  218.648456][ T6691]  ? kernfs_path_from_node+0x2f/0x290
[  218.648473][ T6691]  sysfs_create_dir_ns+0x259/0x280
[  218.648500][ T6691]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  218.648524][ T6691]  ? do_raw_spin_unlock+0x122/0x240
[  218.648546][ T6691]  kobject_add_internal+0x59f/0xb40
[  218.648573][ T6691]  kobject_init_and_add+0x125/0x190
[  218.648597][ T6691]  ? __pfx_kobject_init_and_add+0x10/0x10
[  218.648621][ T6691]  ? __raw_spin_lock_init+0x45/0x100
[  218.648640][ T6691]  ? __init_swait_queue_head+0xa9/0x150
[  218.648659][ T6691]  gfs2_sys_fs_add+0x234/0x450
[  218.648684][ T6691]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  218.648712][ T6691]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  218.648738][ T6691]  gfs2_fill_super+0x13c0/0x20d0
[  218.648765][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  218.648787][ T6691]  ? sb_set_blocksize+0x104/0x180
[  218.648812][ T6691]  ? setup_bdev_super+0x4c1/0x5b0
[  218.648835][ T6691]  get_tree_bdev_flags+0x40e/0x4d0
[  218.648856][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  218.648875][ T6691]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  218.648899][ T6691]  gfs2_get_tree+0x51/0x1e0
[  218.648920][ T6691]  vfs_get_tree+0x92/0x2b0
[  218.648941][ T6691]  do_new_mount+0x2a2/0xa30
[  218.648966][ T6691]  ? ns_capable+0x8a/0xf0
[  218.648991][ T6691]  ? __pfx_do_new_mount+0x10/0x10
[  218.649013][ T6691]  ? path_mount+0x61c/0xfe0
[  218.649034][ T6691]  ? user_path_at+0x44/0x60
[  218.649055][ T6691]  __se_sys_mount+0x317/0x410
[  218.649081][ T6691]  ? __pfx___se_sys_mount+0x10/0x10
[  218.649104][ T6691]  ? rcu_is_watching+0x15/0xb0
[  218.649129][ T6691]  ? __x64_sys_mount+0x20/0xc0
[  218.649163][ T6691]  do_syscall_64+0xfa/0xfa0
[  218.649185][ T6691]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  218.649204][ T6691]  ? clear_bhb_loop+0x60/0xb0
[  218.649225][ T6691]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  218.649243][ T6691] RIP: 0033:0x7f2fdbf9038a
[  218.649261][ T6691] 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
[  218.649277][ T6691] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  218.649300][ T6691] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  218.649315][ T6691] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  218.649329][ T6691] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  218.649342][ T6691] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  218.649354][ T6691] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  218.649375][ T6691]  </TASK>
[  218.649415][ T6691] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  218.966952][ T6691] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  219.199255][ T6694] loop1: detected capacity change from 0 to 32768
[  219.210845][ T6694] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  219.218351][ T6694] CPU: 0 UID: 0 PID: 6694 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT(full) 
[  219.218378][ T6694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  219.218390][ T6694] Call Trace:
[  219.218398][ T6694]  <TASK>
[  219.218407][ T6694]  dump_stack_lvl+0x189/0x250
[  219.218437][ T6694]  ? __pfx_dump_stack_lvl+0x10/0x10
[  219.218459][ T6694]  ? __pfx__printk+0x10/0x10
[  219.218483][ T6694]  ? kernfs_root+0x1c/0x230
[  219.218501][ T6694]  ? kernfs_path_from_node+0x250/0x290
[  219.218517][ T6694]  ? kernfs_path_from_node+0x2f/0x290
[  219.218535][ T6694]  sysfs_create_dir_ns+0x259/0x280
[  219.218562][ T6694]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  219.218588][ T6694]  ? do_raw_spin_unlock+0x122/0x240
[  219.218610][ T6694]  kobject_add_internal+0x59f/0xb40
[  219.218638][ T6694]  kobject_init_and_add+0x125/0x190
[  219.218663][ T6694]  ? __pfx_kobject_init_and_add+0x10/0x10
[  219.218686][ T6694]  ? __raw_spin_lock_init+0x45/0x100
[  219.218704][ T6694]  ? __init_swait_queue_head+0xa9/0x150
[  219.218722][ T6694]  gfs2_sys_fs_add+0x234/0x450
[  219.218749][ T6694]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  219.218777][ T6694]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  219.218802][ T6694]  gfs2_fill_super+0x13c0/0x20d0
[  219.218827][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.218849][ T6694]  ? sb_set_blocksize+0x104/0x180
[  219.218874][ T6694]  ? setup_bdev_super+0x4c1/0x5b0
[  219.218897][ T6694]  get_tree_bdev_flags+0x40e/0x4d0
[  219.218930][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.218949][ T6694]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  219.218974][ T6694]  gfs2_get_tree+0x51/0x1e0
[  219.218994][ T6694]  vfs_get_tree+0x92/0x2b0
[  219.219016][ T6694]  do_new_mount+0x2a2/0xa30
[  219.219040][ T6694]  ? ns_capable+0x8a/0xf0
[  219.219065][ T6694]  ? __pfx_do_new_mount+0x10/0x10
[  219.219087][ T6694]  ? path_mount+0x61c/0xfe0
[  219.219107][ T6694]  ? user_path_at+0x44/0x60
[  219.219127][ T6694]  __se_sys_mount+0x317/0x410
[  219.219152][ T6694]  ? __pfx___se_sys_mount+0x10/0x10
[  219.219175][ T6694]  ? rcu_is_watching+0x15/0xb0
[  219.219198][ T6694]  ? __x64_sys_mount+0x20/0xc0
[  219.219222][ T6694]  do_syscall_64+0xfa/0xfa0
[  219.219244][ T6694]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.219261][ T6694]  ? clear_bhb_loop+0x60/0xb0
[  219.219282][ T6694]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.219300][ T6694] RIP: 0033:0x7f2fdbf9038a
[  219.219317][ T6694] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  219.219334][ T6694] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  219.219357][ T6694] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  219.219372][ T6694] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  219.219385][ T6694] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  219.219397][ T6694] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  219.219411][ T6694] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  219.219432][ T6694]  </TASK>
[  219.219452][ T6694] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  219.540613][ T6694] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 11:51:21 executed programs: 210
[  219.773568][ T6697] loop1: detected capacity change from 0 to 32768
[  219.785730][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  219.793707][ T6697] CPU: 1 UID: 0 PID: 6697 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT(full) 
[  219.793732][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  219.793744][ T6697] Call Trace:
[  219.793752][ T6697]  <TASK>
[  219.793760][ T6697]  dump_stack_lvl+0x189/0x250
[  219.793790][ T6697]  ? __pfx_dump_stack_lvl+0x10/0x10
[  219.793812][ T6697]  ? __pfx__printk+0x10/0x10
[  219.793836][ T6697]  ? kernfs_root+0x1c/0x230
[  219.793856][ T6697]  ? kernfs_path_from_node+0x250/0x290
[  219.793871][ T6697]  ? kernfs_path_from_node+0x2f/0x290
[  219.793901][ T6697]  sysfs_create_dir_ns+0x259/0x280
[  219.793930][ T6697]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  219.793956][ T6697]  ? do_raw_spin_unlock+0x122/0x240
[  219.793979][ T6697]  kobject_add_internal+0x59f/0xb40
[  219.794005][ T6697]  kobject_init_and_add+0x125/0x190
[  219.794029][ T6697]  ? __pfx_kobject_init_and_add+0x10/0x10
[  219.794052][ T6697]  ? __raw_spin_lock_init+0x45/0x100
[  219.794071][ T6697]  ? __init_swait_queue_head+0xa9/0x150
[  219.794091][ T6697]  gfs2_sys_fs_add+0x234/0x450
[  219.794117][ T6697]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  219.794143][ T6697]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  219.794169][ T6697]  gfs2_fill_super+0x13c0/0x20d0
[  219.794196][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.794217][ T6697]  ? sb_set_blocksize+0x104/0x180
[  219.794241][ T6697]  ? setup_bdev_super+0x4c1/0x5b0
[  219.794264][ T6697]  get_tree_bdev_flags+0x40e/0x4d0
[  219.794285][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  219.794304][ T6697]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  219.794329][ T6697]  gfs2_get_tree+0x51/0x1e0
[  219.794350][ T6697]  vfs_get_tree+0x92/0x2b0
[  219.794372][ T6697]  do_new_mount+0x2a2/0xa30
[  219.794396][ T6697]  ? ns_capable+0x8a/0xf0
[  219.794422][ T6697]  ? __pfx_do_new_mount+0x10/0x10
[  219.794443][ T6697]  ? path_mount+0x61c/0xfe0
[  219.794464][ T6697]  ? user_path_at+0x44/0x60
[  219.794485][ T6697]  __se_sys_mount+0x317/0x410
[  219.794510][ T6697]  ? __pfx___se_sys_mount+0x10/0x10
[  219.794535][ T6697]  ? rcu_is_watching+0x15/0xb0
[  219.794559][ T6697]  ? __x64_sys_mount+0x20/0xc0
[  219.794590][ T6697]  do_syscall_64+0xfa/0xfa0
[  219.794612][ T6697]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.794632][ T6697]  ? clear_bhb_loop+0x60/0xb0
[  219.794652][ T6697]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  219.794670][ T6697] RIP: 0033:0x7f2fdbf9038a
[  219.794688][ T6697] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  219.794704][ T6697] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  219.794726][ T6697] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  219.794741][ T6697] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  219.794755][ T6697] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  219.794768][ T6697] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  219.794781][ T6697] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  219.794802][ T6697]  </TASK>
[  219.794845][ T6697] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  220.112282][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  220.351738][ T6700] loop1: detected capacity change from 0 to 32768
[  220.362970][ T6700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  220.370802][ T6700] CPU: 0 UID: 0 PID: 6700 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT(full) 
[  220.370828][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  220.370840][ T6700] Call Trace:
[  220.370848][ T6700]  <TASK>
[  220.370856][ T6700]  dump_stack_lvl+0x189/0x250
[  220.370896][ T6700]  ? __pfx_dump_stack_lvl+0x10/0x10
[  220.370918][ T6700]  ? __pfx__printk+0x10/0x10
[  220.370940][ T6700]  ? kernfs_root+0x1c/0x230
[  220.370961][ T6700]  ? kernfs_path_from_node+0x250/0x290
[  220.370977][ T6700]  ? kernfs_path_from_node+0x2f/0x290
[  220.370995][ T6700]  sysfs_create_dir_ns+0x259/0x280
[  220.371021][ T6700]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  220.371048][ T6700]  ? do_raw_spin_unlock+0x122/0x240
[  220.371071][ T6700]  kobject_add_internal+0x59f/0xb40
[  220.371097][ T6700]  kobject_init_and_add+0x125/0x190
[  220.371121][ T6700]  ? __pfx_kobject_init_and_add+0x10/0x10
[  220.371144][ T6700]  ? __raw_spin_lock_init+0x45/0x100
[  220.371162][ T6700]  ? __init_swait_queue_head+0xa9/0x150
[  220.371181][ T6700]  gfs2_sys_fs_add+0x234/0x450
[  220.371208][ T6700]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  220.371236][ T6700]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  220.371261][ T6700]  gfs2_fill_super+0x13c0/0x20d0
[  220.371288][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.371310][ T6700]  ? sb_set_blocksize+0x104/0x180
[  220.371334][ T6700]  ? setup_bdev_super+0x4c1/0x5b0
[  220.371358][ T6700]  get_tree_bdev_flags+0x40e/0x4d0
[  220.371379][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.371399][ T6700]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  220.371425][ T6700]  gfs2_get_tree+0x51/0x1e0
[  220.371446][ T6700]  vfs_get_tree+0x92/0x2b0
[  220.371467][ T6700]  do_new_mount+0x2a2/0xa30
[  220.371493][ T6700]  ? ns_capable+0x8a/0xf0
[  220.371519][ T6700]  ? __pfx_do_new_mount+0x10/0x10
[  220.371540][ T6700]  ? path_mount+0x61c/0xfe0
[  220.371562][ T6700]  ? user_path_at+0x44/0x60
[  220.371582][ T6700]  __se_sys_mount+0x317/0x410
[  220.371606][ T6700]  ? __pfx___se_sys_mount+0x10/0x10
[  220.371631][ T6700]  ? rcu_is_watching+0x15/0xb0
[  220.371656][ T6700]  ? __x64_sys_mount+0x20/0xc0
[  220.371679][ T6700]  do_syscall_64+0xfa/0xfa0
[  220.371702][ T6700]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.371722][ T6700]  ? clear_bhb_loop+0x60/0xb0
[  220.371742][ T6700]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.371760][ T6700] RIP: 0033:0x7f2fdbf9038a
[  220.371777][ T6700] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  220.371793][ T6700] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  220.371816][ T6700] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  220.371830][ T6700] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  220.371843][ T6700] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  220.371854][ T6700] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  220.371867][ T6700] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  220.371898][ T6700]  </TASK>
[  220.371919][ T6700] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  220.689313][ T6700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  220.921334][ T6703] loop1: detected capacity change from 0 to 32768
[  220.931465][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  220.939166][ T6703] CPU: 0 UID: 0 PID: 6703 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT(full) 
[  220.939192][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  220.939203][ T6703] Call Trace:
[  220.939211][ T6703]  <TASK>
[  220.939219][ T6703]  dump_stack_lvl+0x189/0x250
[  220.939247][ T6703]  ? __pfx_dump_stack_lvl+0x10/0x10
[  220.939269][ T6703]  ? __pfx__printk+0x10/0x10
[  220.939291][ T6703]  ? kernfs_root+0x1c/0x230
[  220.939311][ T6703]  ? kernfs_path_from_node+0x250/0x290
[  220.939325][ T6703]  ? kernfs_path_from_node+0x2f/0x290
[  220.939343][ T6703]  sysfs_create_dir_ns+0x259/0x280
[  220.939371][ T6703]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  220.939397][ T6703]  ? do_raw_spin_unlock+0x122/0x240
[  220.939419][ T6703]  kobject_add_internal+0x59f/0xb40
[  220.939446][ T6703]  kobject_init_and_add+0x125/0x190
[  220.939470][ T6703]  ? __pfx_kobject_init_and_add+0x10/0x10
[  220.939493][ T6703]  ? __raw_spin_lock_init+0x45/0x100
[  220.939512][ T6703]  ? __init_swait_queue_head+0xa9/0x150
[  220.939531][ T6703]  gfs2_sys_fs_add+0x234/0x450
[  220.939559][ T6703]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  220.939583][ T6703]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  220.939606][ T6703]  gfs2_fill_super+0x13c0/0x20d0
[  220.939630][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.939651][ T6703]  ? sb_set_blocksize+0x104/0x180
[  220.939674][ T6703]  ? setup_bdev_super+0x4c1/0x5b0
[  220.939698][ T6703]  get_tree_bdev_flags+0x40e/0x4d0
[  220.939718][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  220.939737][ T6703]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  220.939760][ T6703]  gfs2_get_tree+0x51/0x1e0
[  220.939779][ T6703]  vfs_get_tree+0x92/0x2b0
[  220.939805][ T6703]  do_new_mount+0x2a2/0xa30
[  220.939828][ T6703]  ? ns_capable+0x8a/0xf0
[  220.939851][ T6703]  ? __pfx_do_new_mount+0x10/0x10
[  220.939872][ T6703]  ? path_mount+0x61c/0xfe0
[  220.939903][ T6703]  ? user_path_at+0x44/0x60
[  220.939921][ T6703]  __se_sys_mount+0x317/0x410
[  220.939945][ T6703]  ? __pfx___se_sys_mount+0x10/0x10
[  220.939968][ T6703]  ? rcu_is_watching+0x15/0xb0
[  220.939991][ T6703]  ? __x64_sys_mount+0x20/0xc0
[  220.940015][ T6703]  do_syscall_64+0xfa/0xfa0
[  220.940036][ T6703]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.940055][ T6703]  ? clear_bhb_loop+0x60/0xb0
[  220.940074][ T6703]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  220.940091][ T6703] RIP: 0033:0x7f2fdbf9038a
[  220.940108][ T6703] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  220.940124][ T6703] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  220.940145][ T6703] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  220.940159][ T6703] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  220.940171][ T6703] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  220.940183][ T6703] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  220.940195][ T6703] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  220.940216][ T6703]  </TASK>
[  221.243643][ T6703] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  221.257947][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  221.495768][ T6706] loop1: detected capacity change from 0 to 32768
[  221.512282][ T6706] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  221.520164][ T6706] CPU: 0 UID: 0 PID: 6706 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT(full) 
[  221.520191][ T6706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  221.520204][ T6706] Call Trace:
[  221.520211][ T6706]  <TASK>
[  221.520219][ T6706]  dump_stack_lvl+0x189/0x250
[  221.520247][ T6706]  ? __pfx_dump_stack_lvl+0x10/0x10
[  221.520268][ T6706]  ? __pfx__printk+0x10/0x10
[  221.520291][ T6706]  ? kernfs_root+0x1c/0x230
[  221.520310][ T6706]  ? kernfs_path_from_node+0x250/0x290
[  221.520326][ T6706]  ? kernfs_path_from_node+0x2f/0x290
[  221.520345][ T6706]  sysfs_create_dir_ns+0x259/0x280
[  221.520371][ T6706]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  221.520396][ T6706]  ? do_raw_spin_unlock+0x122/0x240
[  221.520417][ T6706]  kobject_add_internal+0x59f/0xb40
[  221.520443][ T6706]  kobject_init_and_add+0x125/0x190
[  221.520467][ T6706]  ? __pfx_kobject_init_and_add+0x10/0x10
[  221.520490][ T6706]  ? __raw_spin_lock_init+0x45/0x100
[  221.520509][ T6706]  ? __init_swait_queue_head+0xa9/0x150
[  221.520529][ T6706]  gfs2_sys_fs_add+0x234/0x450
[  221.520556][ T6706]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  221.520583][ T6706]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  221.520610][ T6706]  gfs2_fill_super+0x13c0/0x20d0
[  221.520637][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  221.520659][ T6706]  ? sb_set_blocksize+0x104/0x180
[  221.520683][ T6706]  ? setup_bdev_super+0x4c1/0x5b0
[  221.520707][ T6706]  get_tree_bdev_flags+0x40e/0x4d0
[  221.520728][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  221.520749][ T6706]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  221.520775][ T6706]  gfs2_get_tree+0x51/0x1e0
[  221.520796][ T6706]  vfs_get_tree+0x92/0x2b0
[  221.520817][ T6706]  do_new_mount+0x2a2/0xa30
[  221.520842][ T6706]  ? ns_capable+0x8a/0xf0
[  221.520867][ T6706]  ? __pfx_do_new_mount+0x10/0x10
[  221.520888][ T6706]  ? path_mount+0x61c/0xfe0
[  221.520909][ T6706]  ? user_path_at+0x44/0x60
[  221.520930][ T6706]  __se_sys_mount+0x317/0x410
[  221.520955][ T6706]  ? __pfx___se_sys_mount+0x10/0x10
[  221.520981][ T6706]  ? rcu_is_watching+0x15/0xb0
[  221.521005][ T6706]  ? __x64_sys_mount+0x20/0xc0
[  221.521050][ T6706]  do_syscall_64+0xfa/0xfa0
[  221.521070][ T6706]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  221.521089][ T6706]  ? clear_bhb_loop+0x60/0xb0
[  221.521109][ T6706]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  221.521135][ T6706] RIP: 0033:0x7f2fdbf9038a
[  221.521151][ T6706] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  221.521168][ T6706] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  221.521189][ T6706] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  221.521204][ T6706] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  221.521218][ T6706] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  221.521231][ T6706] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  221.521244][ T6706] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  221.521264][ T6706]  </TASK>
[  221.521283][ T6706] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  221.839370][ T6706] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  222.112715][ T6709] loop1: detected capacity change from 0 to 32768
[  222.125919][ T6709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  222.134191][ T6709] CPU: 0 UID: 0 PID: 6709 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT(full) 
[  222.134217][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  222.134230][ T6709] Call Trace:
[  222.134237][ T6709]  <TASK>
[  222.134245][ T6709]  dump_stack_lvl+0x189/0x250
[  222.134273][ T6709]  ? __pfx_dump_stack_lvl+0x10/0x10
[  222.134295][ T6709]  ? __pfx__printk+0x10/0x10
[  222.134318][ T6709]  ? kernfs_root+0x1c/0x230
[  222.134337][ T6709]  ? kernfs_path_from_node+0x250/0x290
[  222.134352][ T6709]  ? kernfs_path_from_node+0x2f/0x290
[  222.134370][ T6709]  sysfs_create_dir_ns+0x259/0x280
[  222.134397][ T6709]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  222.134423][ T6709]  ? do_raw_spin_unlock+0x122/0x240
[  222.134444][ T6709]  kobject_add_internal+0x59f/0xb40
[  222.134470][ T6709]  kobject_init_and_add+0x125/0x190
[  222.134493][ T6709]  ? __pfx_kobject_init_and_add+0x10/0x10
[  222.134515][ T6709]  ? __raw_spin_lock_init+0x45/0x100
[  222.134534][ T6709]  ? __init_swait_queue_head+0xa9/0x150
[  222.134553][ T6709]  gfs2_sys_fs_add+0x234/0x450
[  222.134578][ T6709]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.134605][ T6709]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.134632][ T6709]  gfs2_fill_super+0x13c0/0x20d0
[  222.134658][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.134681][ T6709]  ? sb_set_blocksize+0x104/0x180
[  222.134704][ T6709]  ? setup_bdev_super+0x4c1/0x5b0
[  222.134726][ T6709]  get_tree_bdev_flags+0x40e/0x4d0
[  222.134747][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.134774][ T6709]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.134798][ T6709]  gfs2_get_tree+0x51/0x1e0
[  222.134818][ T6709]  vfs_get_tree+0x92/0x2b0
[  222.134841][ T6709]  do_new_mount+0x2a2/0xa30
[  222.134864][ T6709]  ? ns_capable+0x8a/0xf0
[  222.134888][ T6709]  ? __pfx_do_new_mount+0x10/0x10
[  222.134909][ T6709]  ? path_mount+0x61c/0xfe0
[  222.134930][ T6709]  ? user_path_at+0x44/0x60
[  222.134951][ T6709]  __se_sys_mount+0x317/0x410
[  222.134976][ T6709]  ? __pfx___se_sys_mount+0x10/0x10
[  222.135000][ T6709]  ? rcu_is_watching+0x15/0xb0
[  222.135026][ T6709]  ? __x64_sys_mount+0x20/0xc0
[  222.135050][ T6709]  do_syscall_64+0xfa/0xfa0
[  222.135072][ T6709]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.135091][ T6709]  ? clear_bhb_loop+0x60/0xb0
[  222.135120][ T6709]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.135138][ T6709] RIP: 0033:0x7f2fdbf9038a
[  222.135156][ T6709] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  222.135173][ T6709] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.135194][ T6709] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  222.135208][ T6709] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  222.135222][ T6709] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  222.135235][ T6709] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.135248][ T6709] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  222.135269][ T6709]  </TASK>
[  222.135368][ T6709] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  222.320568][ T5905] Bluetooth: hci1: command 0x0406 tx timeout
[  222.327983][ T6709] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  222.696936][ T6712] loop1: detected capacity change from 0 to 32768
[  222.710831][ T6712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  222.718258][ T6712] CPU: 1 UID: 0 PID: 6712 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT(full) 
[  222.718285][ T6712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  222.718297][ T6712] Call Trace:
[  222.718304][ T6712]  <TASK>
[  222.718311][ T6712]  dump_stack_lvl+0x189/0x250
[  222.718341][ T6712]  ? __pfx_dump_stack_lvl+0x10/0x10
[  222.718363][ T6712]  ? __pfx__printk+0x10/0x10
[  222.718387][ T6712]  ? kernfs_root+0x1c/0x230
[  222.718406][ T6712]  ? kernfs_path_from_node+0x250/0x290
[  222.718422][ T6712]  ? kernfs_path_from_node+0x2f/0x290
[  222.718440][ T6712]  sysfs_create_dir_ns+0x259/0x280
[  222.718468][ T6712]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  222.718495][ T6712]  ? do_raw_spin_unlock+0x122/0x240
[  222.718516][ T6712]  kobject_add_internal+0x59f/0xb40
[  222.718543][ T6712]  kobject_init_and_add+0x125/0x190
[  222.718567][ T6712]  ? __pfx_kobject_init_and_add+0x10/0x10
[  222.718590][ T6712]  ? __raw_spin_lock_init+0x45/0x100
[  222.718610][ T6712]  ? __init_swait_queue_head+0xa9/0x150
[  222.718629][ T6712]  gfs2_sys_fs_add+0x234/0x450
[  222.718656][ T6712]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.718683][ T6712]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.718710][ T6712]  gfs2_fill_super+0x13c0/0x20d0
[  222.718736][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.718758][ T6712]  ? sb_set_blocksize+0x104/0x180
[  222.718783][ T6712]  ? setup_bdev_super+0x4c1/0x5b0
[  222.718804][ T6712]  get_tree_bdev_flags+0x40e/0x4d0
[  222.718826][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.718846][ T6712]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.718871][ T6712]  gfs2_get_tree+0x51/0x1e0
[  222.718892][ T6712]  vfs_get_tree+0x92/0x2b0
[  222.718914][ T6712]  do_new_mount+0x2a2/0xa30
[  222.718938][ T6712]  ? ns_capable+0x8a/0xf0
[  222.718962][ T6712]  ? __pfx_do_new_mount+0x10/0x10
[  222.718984][ T6712]  ? path_mount+0x61c/0xfe0
[  222.719004][ T6712]  ? user_path_at+0x44/0x60
[  222.719024][ T6712]  __se_sys_mount+0x317/0x410
[  222.719049][ T6712]  ? __pfx___se_sys_mount+0x10/0x10
[  222.719073][ T6712]  ? rcu_is_watching+0x15/0xb0
[  222.719099][ T6712]  ? __x64_sys_mount+0x20/0xc0
[  222.719133][ T6712]  do_syscall_64+0xfa/0xfa0
[  222.719155][ T6712]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.719173][ T6712]  ? clear_bhb_loop+0x60/0xb0
[  222.719193][ T6712]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.719211][ T6712] RIP: 0033:0x7f2fdbf9038a
[  222.719229][ T6712] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  222.719246][ T6712] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.719268][ T6712] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  222.719283][ T6712] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  222.719296][ T6712] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  222.719309][ T6712] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.719322][ T6712] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  222.719343][ T6712]  </TASK>
[  222.719365][ T6712] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  223.037022][ T6712] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.280765][ T6715] loop1: detected capacity change from 0 to 32768
[  223.306139][ T6715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.313740][ T6715] CPU: 0 UID: 0 PID: 6715 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT(full) 
[  223.313767][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.313778][ T6715] Call Trace:
[  223.313786][ T6715]  <TASK>
[  223.313793][ T6715]  dump_stack_lvl+0x189/0x250
[  223.313818][ T6715]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.313834][ T6715]  ? __pfx__printk+0x10/0x10
[  223.313848][ T6715]  ? kernfs_root+0x1c/0x230
[  223.313860][ T6715]  ? kernfs_path_from_node+0x250/0x290
[  223.313869][ T6715]  ? kernfs_path_from_node+0x2f/0x290
[  223.313880][ T6715]  sysfs_create_dir_ns+0x259/0x280
[  223.313896][ T6715]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.313913][ T6715]  ? do_raw_spin_unlock+0x122/0x240
[  223.313925][ T6715]  kobject_add_internal+0x59f/0xb40
[  223.313942][ T6715]  kobject_init_and_add+0x125/0x190
[  223.313956][ T6715]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.313970][ T6715]  ? __raw_spin_lock_init+0x45/0x100
[  223.313981][ T6715]  ? __init_swait_queue_head+0xa9/0x150
[  223.313993][ T6715]  gfs2_sys_fs_add+0x234/0x450
[  223.314009][ T6715]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.314026][ T6715]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.314042][ T6715]  gfs2_fill_super+0x13c0/0x20d0
[  223.314065][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.314078][ T6715]  ? sb_set_blocksize+0x104/0x180
[  223.314094][ T6715]  ? setup_bdev_super+0x4c1/0x5b0
[  223.314108][ T6715]  get_tree_bdev_flags+0x40e/0x4d0
[  223.314121][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.314133][ T6715]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.314147][ T6715]  gfs2_get_tree+0x51/0x1e0
[  223.314160][ T6715]  vfs_get_tree+0x92/0x2b0
[  223.314173][ T6715]  do_new_mount+0x2a2/0xa30
[  223.314187][ T6715]  ? ns_capable+0x8a/0xf0
[  223.314203][ T6715]  ? __pfx_do_new_mount+0x10/0x10
[  223.314216][ T6715]  ? path_mount+0x61c/0xfe0
[  223.314228][ T6715]  ? user_path_at+0x44/0x60
[  223.314240][ T6715]  __se_sys_mount+0x317/0x410
[  223.314256][ T6715]  ? __pfx___se_sys_mount+0x10/0x10
[  223.314270][ T6715]  ? rcu_is_watching+0x15/0xb0
[  223.314292][ T6715]  ? __x64_sys_mount+0x20/0xc0
[  223.314313][ T6715]  do_syscall_64+0xfa/0xfa0
[  223.314335][ T6715]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.314352][ T6715]  ? clear_bhb_loop+0x60/0xb0
[  223.314370][ T6715]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.314388][ T6715] RIP: 0033:0x7f2fdbf9038a
[  223.314402][ T6715] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  223.314413][ T6715] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.314427][ T6715] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  223.314436][ T6715] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  223.314444][ T6715] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  223.314451][ T6715] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.314459][ T6715] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  223.314471][ T6715]  </TASK>
[  223.314484][ T6715] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  223.631898][ T6715] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.863181][ T6718] loop1: detected capacity change from 0 to 32768
[  223.874725][ T6718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.882698][ T6718] CPU: 1 UID: 0 PID: 6718 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT(full) 
[  223.882724][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.882736][ T6718] Call Trace:
[  223.882743][ T6718]  <TASK>
[  223.882750][ T6718]  dump_stack_lvl+0x189/0x250
[  223.882780][ T6718]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.882802][ T6718]  ? __pfx__printk+0x10/0x10
[  223.882826][ T6718]  ? kernfs_root+0x1c/0x230
[  223.882845][ T6718]  ? kernfs_path_from_node+0x250/0x290
[  223.882860][ T6718]  ? kernfs_path_from_node+0x2f/0x290
[  223.882878][ T6718]  sysfs_create_dir_ns+0x259/0x280
[  223.882905][ T6718]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.882933][ T6718]  ? do_raw_spin_unlock+0x122/0x240
[  223.882953][ T6718]  kobject_add_internal+0x59f/0xb40
[  223.882982][ T6718]  kobject_init_and_add+0x125/0x190
[  223.883007][ T6718]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.883028][ T6718]  ? __raw_spin_lock_init+0x45/0x100
[  223.883048][ T6718]  ? __init_swait_queue_head+0xa9/0x150
[  223.883068][ T6718]  gfs2_sys_fs_add+0x234/0x450
[  223.883107][ T6718]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.883136][ T6718]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.883163][ T6718]  gfs2_fill_super+0x13c0/0x20d0
[  223.883188][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.883210][ T6718]  ? sb_set_blocksize+0x104/0x180
[  223.883236][ T6718]  ? setup_bdev_super+0x4c1/0x5b0
[  223.883258][ T6718]  get_tree_bdev_flags+0x40e/0x4d0
[  223.883279][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.883299][ T6718]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.883326][ T6718]  gfs2_get_tree+0x51/0x1e0
[  223.883346][ T6718]  vfs_get_tree+0x92/0x2b0
[  223.883368][ T6718]  do_new_mount+0x2a2/0xa30
[  223.883392][ T6718]  ? ns_capable+0x8a/0xf0
[  223.883418][ T6718]  ? __pfx_do_new_mount+0x10/0x10
[  223.883440][ T6718]  ? path_mount+0x61c/0xfe0
[  223.883461][ T6718]  ? user_path_at+0x44/0x60
[  223.883483][ T6718]  __se_sys_mount+0x317/0x410
[  223.883508][ T6718]  ? __pfx___se_sys_mount+0x10/0x10
[  223.883532][ T6718]  ? rcu_is_watching+0x15/0xb0
[  223.883557][ T6718]  ? __x64_sys_mount+0x20/0xc0
[  223.883581][ T6718]  do_syscall_64+0xfa/0xfa0
[  223.883604][ T6718]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.883622][ T6718]  ? clear_bhb_loop+0x60/0xb0
[  223.883642][ T6718]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.883660][ T6718] RIP: 0033:0x7f2fdbf9038a
[  223.883677][ T6718] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  223.883693][ T6718] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.883714][ T6718] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  223.883728][ T6718] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  223.883740][ T6718] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  223.883753][ T6718] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.883766][ T6718] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  223.883786][ T6718]  </TASK>
[  223.883807][ T6718] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  224.200474][ T6718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  224.435347][ T6721] loop1: detected capacity change from 0 to 32768
[  224.446468][ T6721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  224.454298][ T6721] CPU: 0 UID: 0 PID: 6721 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT(full) 
[  224.454324][ T6721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  224.454337][ T6721] Call Trace:
[  224.454344][ T6721]  <TASK>
[  224.454352][ T6721]  dump_stack_lvl+0x189/0x250
[  224.454381][ T6721]  ? __pfx_dump_stack_lvl+0x10/0x10
[  224.454404][ T6721]  ? __pfx__printk+0x10/0x10
[  224.454426][ T6721]  ? kernfs_root+0x1c/0x230
[  224.454445][ T6721]  ? kernfs_path_from_node+0x250/0x290
[  224.454461][ T6721]  ? kernfs_path_from_node+0x2f/0x290
[  224.454480][ T6721]  sysfs_create_dir_ns+0x259/0x280
[  224.454507][ T6721]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  224.454531][ T6721]  ? do_raw_spin_unlock+0x122/0x240
[  224.454552][ T6721]  kobject_add_internal+0x59f/0xb40
[  224.454580][ T6721]  kobject_init_and_add+0x125/0x190
[  224.454604][ T6721]  ? __pfx_kobject_init_and_add+0x10/0x10
[  224.454626][ T6721]  ? __raw_spin_lock_init+0x45/0x100
[  224.454645][ T6721]  ? __init_swait_queue_head+0xa9/0x150
[  224.454666][ T6721]  gfs2_sys_fs_add+0x234/0x450
[  224.454691][ T6721]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  224.454720][ T6721]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  224.454748][ T6721]  gfs2_fill_super+0x13c0/0x20d0
[  224.454774][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.454796][ T6721]  ? sb_set_blocksize+0x104/0x180
[  224.454819][ T6721]  ? setup_bdev_super+0x4c1/0x5b0
[  224.454842][ T6721]  get_tree_bdev_flags+0x40e/0x4d0
[  224.454864][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.454895][ T6721]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  224.454920][ T6721]  gfs2_get_tree+0x51/0x1e0
[  224.454942][ T6721]  vfs_get_tree+0x92/0x2b0
[  224.454964][ T6721]  do_new_mount+0x2a2/0xa30
[  224.454989][ T6721]  ? ns_capable+0x8a/0xf0
[  224.455013][ T6721]  ? __pfx_do_new_mount+0x10/0x10
[  224.455035][ T6721]  ? path_mount+0x61c/0xfe0
[  224.455056][ T6721]  ? user_path_at+0x44/0x60
[  224.455076][ T6721]  __se_sys_mount+0x317/0x410
[  224.455101][ T6721]  ? __pfx___se_sys_mount+0x10/0x10
[  224.455125][ T6721]  ? rcu_is_watching+0x15/0xb0
[  224.455149][ T6721]  ? __x64_sys_mount+0x20/0xc0
[  224.455173][ T6721]  do_syscall_64+0xfa/0xfa0
[  224.455195][ T6721]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.455215][ T6721]  ? clear_bhb_loop+0x60/0xb0
[  224.455234][ T6721]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.455252][ T6721] RIP: 0033:0x7f2fdbf9038a
[  224.455271][ T6721] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  224.455287][ T6721] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  224.455310][ T6721] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  224.455324][ T6721] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  224.455337][ T6721] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  224.455350][ T6721] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  224.455363][ T6721] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  224.455384][ T6721]  </TASK>
[  224.455405][ T6721] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  224.775793][ T6721] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 11:51:26 executed programs: 219
[  225.005942][ T6724] loop1: detected capacity change from 0 to 32768
[  225.014960][ T6724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.023340][ T6724] CPU: 0 UID: 0 PID: 6724 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  225.023364][ T6724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.023373][ T6724] Call Trace:
[  225.023389][ T6724]  <TASK>
[  225.023395][ T6724]  dump_stack_lvl+0x189/0x250
[  225.023420][ T6724]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.023437][ T6724]  ? __pfx__printk+0x10/0x10
[  225.023456][ T6724]  ? kernfs_root+0x1c/0x230
[  225.023471][ T6724]  ? kernfs_path_from_node+0x250/0x290
[  225.023483][ T6724]  ? kernfs_path_from_node+0x2f/0x290
[  225.023496][ T6724]  sysfs_create_dir_ns+0x259/0x280
[  225.023517][ T6724]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.023539][ T6724]  ? do_raw_spin_unlock+0x122/0x240
[  225.023555][ T6724]  kobject_add_internal+0x59f/0xb40
[  225.023577][ T6724]  kobject_init_and_add+0x125/0x190
[  225.023596][ T6724]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.023614][ T6724]  ? __raw_spin_lock_init+0x45/0x100
[  225.023628][ T6724]  ? __init_swait_queue_head+0xa9/0x150
[  225.023643][ T6724]  gfs2_sys_fs_add+0x234/0x450
[  225.023665][ T6724]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.023687][ T6724]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.023707][ T6724]  gfs2_fill_super+0x13c0/0x20d0
[  225.023728][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.023744][ T6724]  ? sb_set_blocksize+0x104/0x180
[  225.023764][ T6724]  ? setup_bdev_super+0x4c1/0x5b0
[  225.023782][ T6724]  get_tree_bdev_flags+0x40e/0x4d0
[  225.023799][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.023814][ T6724]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.023834][ T6724]  gfs2_get_tree+0x51/0x1e0
[  225.023851][ T6724]  vfs_get_tree+0x92/0x2b0
[  225.023868][ T6724]  do_new_mount+0x2a2/0xa30
[  225.023887][ T6724]  ? ns_capable+0x8a/0xf0
[  225.023908][ T6724]  ? __pfx_do_new_mount+0x10/0x10
[  225.023925][ T6724]  ? path_mount+0x61c/0xfe0
[  225.023941][ T6724]  ? user_path_at+0x44/0x60
[  225.023957][ T6724]  __se_sys_mount+0x317/0x410
[  225.023977][ T6724]  ? __pfx___se_sys_mount+0x10/0x10
[  225.023996][ T6724]  ? rcu_is_watching+0x15/0xb0
[  225.024016][ T6724]  ? __x64_sys_mount+0x20/0xc0
[  225.024035][ T6724]  do_syscall_64+0xfa/0xfa0
[  225.024052][ T6724]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.024066][ T6724]  ? clear_bhb_loop+0x60/0xb0
[  225.024082][ T6724]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.024103][ T6724] RIP: 0033:0x7f2fdbf9038a
[  225.024116][ T6724] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  225.024130][ T6724] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.024147][ T6724] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  225.024159][ T6724] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  225.024169][ T6724] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  225.024179][ T6724] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.024189][ T6724] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  225.024205][ T6724]  </TASK>
[  225.024225][ T6724] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  225.344033][ T6724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  225.591593][ T6727] loop1: detected capacity change from 0 to 32768
[  225.603584][ T6727] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.612241][ T6727] CPU: 0 UID: 0 PID: 6727 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT(full) 
[  225.612269][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.612281][ T6727] Call Trace:
[  225.612289][ T6727]  <TASK>
[  225.612297][ T6727]  dump_stack_lvl+0x189/0x250
[  225.612326][ T6727]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.612349][ T6727]  ? __pfx__printk+0x10/0x10
[  225.612372][ T6727]  ? kernfs_root+0x1c/0x230
[  225.612399][ T6727]  ? kernfs_path_from_node+0x250/0x290
[  225.612416][ T6727]  ? kernfs_path_from_node+0x2f/0x290
[  225.612434][ T6727]  sysfs_create_dir_ns+0x259/0x280
[  225.612460][ T6727]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.612486][ T6727]  ? do_raw_spin_unlock+0x122/0x240
[  225.612509][ T6727]  kobject_add_internal+0x59f/0xb40
[  225.612536][ T6727]  kobject_init_and_add+0x125/0x190
[  225.612562][ T6727]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.612583][ T6727]  ? __raw_spin_lock_init+0x45/0x100
[  225.612602][ T6727]  ? __init_swait_queue_head+0xa9/0x150
[  225.612622][ T6727]  gfs2_sys_fs_add+0x234/0x450
[  225.612649][ T6727]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.612676][ T6727]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.612703][ T6727]  gfs2_fill_super+0x13c0/0x20d0
[  225.612730][ T6727]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.612752][ T6727]  ? sb_set_blocksize+0x104/0x180
[  225.612778][ T6727]  ? setup_bdev_super+0x4c1/0x5b0
[  225.612800][ T6727]  get_tree_bdev_flags+0x40e/0x4d0
[  225.612822][ T6727]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.612840][ T6727]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.612865][ T6727]  gfs2_get_tree+0x51/0x1e0
[  225.612887][ T6727]  vfs_get_tree+0x92/0x2b0
[  225.612908][ T6727]  do_new_mount+0x2a2/0xa30
[  225.612933][ T6727]  ? ns_capable+0x8a/0xf0
[  225.612958][ T6727]  ? __pfx_do_new_mount+0x10/0x10
[  225.612979][ T6727]  ? path_mount+0x61c/0xfe0
[  225.613001][ T6727]  ? user_path_at+0x44/0x60
[  225.613022][ T6727]  __se_sys_mount+0x317/0x410
[  225.613046][ T6727]  ? __pfx___se_sys_mount+0x10/0x10
[  225.613071][ T6727]  ? rcu_is_watching+0x15/0xb0
[  225.613106][ T6727]  ? __x64_sys_mount+0x20/0xc0
[  225.613129][ T6727]  do_syscall_64+0xfa/0xfa0
[  225.613152][ T6727]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.613170][ T6727]  ? clear_bhb_loop+0x60/0xb0
[  225.613190][ T6727]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.613207][ T6727] RIP: 0033:0x7f2fdbf9038a
[  225.613225][ T6727] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  225.613243][ T6727] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.613266][ T6727] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  225.613280][ T6727] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  225.613294][ T6727] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  225.613307][ T6727] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.613320][ T6727] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  225.613341][ T6727]  </TASK>
[  225.613362][ T6727] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  225.931012][ T6727] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  226.167379][ T6730] loop1: detected capacity change from 0 to 32768
[  226.192281][ T6730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  226.200051][ T6730] CPU: 1 UID: 0 PID: 6730 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full) 
[  226.200076][ T6730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  226.200088][ T6730] Call Trace:
[  226.200095][ T6730]  <TASK>
[  226.200103][ T6730]  dump_stack_lvl+0x189/0x250
[  226.200132][ T6730]  ? __pfx_dump_stack_lvl+0x10/0x10
[  226.200154][ T6730]  ? __pfx__printk+0x10/0x10
[  226.200176][ T6730]  ? kernfs_root+0x1c/0x230
[  226.200192][ T6730]  ? kernfs_path_from_node+0x250/0x290
[  226.200201][ T6730]  ? kernfs_path_from_node+0x2f/0x290
[  226.200212][ T6730]  sysfs_create_dir_ns+0x259/0x280
[  226.200228][ T6730]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  226.200244][ T6730]  ? do_raw_spin_unlock+0x122/0x240
[  226.200257][ T6730]  kobject_add_internal+0x59f/0xb40
[  226.200274][ T6730]  kobject_init_and_add+0x125/0x190
[  226.200289][ T6730]  ? __pfx_kobject_init_and_add+0x10/0x10
[  226.200302][ T6730]  ? __raw_spin_lock_init+0x45/0x100
[  226.200314][ T6730]  ? __init_swait_queue_head+0xa9/0x150
[  226.200325][ T6730]  gfs2_sys_fs_add+0x234/0x450
[  226.200341][ T6730]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  226.200358][ T6730]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  226.200373][ T6730]  gfs2_fill_super+0x13c0/0x20d0
[  226.200389][ T6730]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.200401][ T6730]  ? sb_set_blocksize+0x104/0x180
[  226.200416][ T6730]  ? setup_bdev_super+0x4c1/0x5b0
[  226.200430][ T6730]  get_tree_bdev_flags+0x40e/0x4d0
[  226.200443][ T6730]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.200455][ T6730]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  226.200470][ T6730]  gfs2_get_tree+0x51/0x1e0
[  226.200482][ T6730]  vfs_get_tree+0x92/0x2b0
[  226.200495][ T6730]  do_new_mount+0x2a2/0xa30
[  226.200509][ T6730]  ? ns_capable+0x8a/0xf0
[  226.200524][ T6730]  ? __pfx_do_new_mount+0x10/0x10
[  226.200537][ T6730]  ? path_mount+0x61c/0xfe0
[  226.200550][ T6730]  ? user_path_at+0x44/0x60
[  226.200562][ T6730]  __se_sys_mount+0x317/0x410
[  226.200577][ T6730]  ? __pfx___se_sys_mount+0x10/0x10
[  226.200592][ T6730]  ? rcu_is_watching+0x15/0xb0
[  226.200607][ T6730]  ? __x64_sys_mount+0x20/0xc0
[  226.200621][ T6730]  do_syscall_64+0xfa/0xfa0
[  226.200634][ T6730]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.200645][ T6730]  ? clear_bhb_loop+0x60/0xb0
[  226.200657][ T6730]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.200668][ T6730] RIP: 0033:0x7f2fdbf9038a
[  226.200680][ T6730] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  226.200690][ T6730] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  226.200704][ T6730] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  226.200713][ T6730] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  226.200721][ T6730] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  226.200728][ T6730] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  226.200736][ T6730] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  226.200748][ T6730]  </TASK>
[  226.201435][ T6730] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  226.520438][ T6730] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  226.748471][ T6733] loop1: detected capacity change from 0 to 32768
[  226.757321][ T6733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  226.764981][ T6733] CPU: 0 UID: 0 PID: 6733 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT(full) 
[  226.765007][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  226.765018][ T6733] Call Trace:
[  226.765025][ T6733]  <TASK>
[  226.765032][ T6733]  dump_stack_lvl+0x189/0x250
[  226.765060][ T6733]  ? __pfx_dump_stack_lvl+0x10/0x10
[  226.765091][ T6733]  ? __pfx__printk+0x10/0x10
[  226.765114][ T6733]  ? kernfs_root+0x1c/0x230
[  226.765131][ T6733]  ? kernfs_path_from_node+0x250/0x290
[  226.765146][ T6733]  ? kernfs_path_from_node+0x2f/0x290
[  226.765164][ T6733]  sysfs_create_dir_ns+0x259/0x280
[  226.765189][ T6733]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  226.765215][ T6733]  ? do_raw_spin_unlock+0x122/0x240
[  226.765234][ T6733]  kobject_add_internal+0x59f/0xb40
[  226.765258][ T6733]  kobject_init_and_add+0x125/0x190
[  226.765280][ T6733]  ? __pfx_kobject_init_and_add+0x10/0x10
[  226.765300][ T6733]  ? __raw_spin_lock_init+0x45/0x100
[  226.765318][ T6733]  ? __init_swait_queue_head+0xa9/0x150
[  226.765336][ T6733]  gfs2_sys_fs_add+0x234/0x450
[  226.765362][ T6733]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  226.765390][ T6733]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  226.765416][ T6733]  gfs2_fill_super+0x13c0/0x20d0
[  226.765440][ T6733]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.765460][ T6733]  ? sb_set_blocksize+0x104/0x180
[  226.765483][ T6733]  ? setup_bdev_super+0x4c1/0x5b0
[  226.765505][ T6733]  get_tree_bdev_flags+0x40e/0x4d0
[  226.765524][ T6733]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.765544][ T6733]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  226.765569][ T6733]  gfs2_get_tree+0x51/0x1e0
[  226.765590][ T6733]  vfs_get_tree+0x92/0x2b0
[  226.765612][ T6733]  do_new_mount+0x2a2/0xa30
[  226.765635][ T6733]  ? ns_capable+0x8a/0xf0
[  226.765660][ T6733]  ? __pfx_do_new_mount+0x10/0x10
[  226.765681][ T6733]  ? path_mount+0x61c/0xfe0
[  226.765701][ T6733]  ? user_path_at+0x44/0x60
[  226.765720][ T6733]  __se_sys_mount+0x317/0x410
[  226.765746][ T6733]  ? __pfx___se_sys_mount+0x10/0x10
[  226.765769][ T6733]  ? rcu_is_watching+0x15/0xb0
[  226.765793][ T6733]  ? __x64_sys_mount+0x20/0xc0
[  226.765818][ T6733]  do_syscall_64+0xfa/0xfa0
[  226.765839][ T6733]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.765859][ T6733]  ? clear_bhb_loop+0x60/0xb0
[  226.765879][ T6733]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.765898][ T6733] RIP: 0033:0x7f2fdbf9038a
[  226.765914][ T6733] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  226.765932][ T6733] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  226.765955][ T6733] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  226.765969][ T6733] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  226.765982][ T6733] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  226.765994][ T6733] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  226.766007][ T6733] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  226.766027][ T6733]  </TASK>
[  226.766047][ T6733] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  227.084221][ T6733] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  227.314727][ T6736] loop1: detected capacity change from 0 to 32768
[  227.339731][ T6736] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  227.349888][ T6736] CPU: 1 UID: 0 PID: 6736 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  227.349915][ T6736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  227.349927][ T6736] Call Trace:
[  227.349934][ T6736]  <TASK>
[  227.349942][ T6736]  dump_stack_lvl+0x189/0x250
[  227.349972][ T6736]  ? __pfx_dump_stack_lvl+0x10/0x10
[  227.349994][ T6736]  ? __pfx__printk+0x10/0x10
[  227.350017][ T6736]  ? kernfs_root+0x1c/0x230
[  227.350036][ T6736]  ? kernfs_path_from_node+0x250/0x290
[  227.350052][ T6736]  ? kernfs_path_from_node+0x2f/0x290
[  227.350088][ T6736]  sysfs_create_dir_ns+0x259/0x280
[  227.350115][ T6736]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  227.350144][ T6736]  ? do_raw_spin_unlock+0x122/0x240
[  227.350165][ T6736]  kobject_add_internal+0x59f/0xb40
[  227.350192][ T6736]  kobject_init_and_add+0x125/0x190
[  227.350218][ T6736]  ? __pfx_kobject_init_and_add+0x10/0x10
[  227.350241][ T6736]  ? __raw_spin_lock_init+0x45/0x100
[  227.350260][ T6736]  ? __init_swait_queue_head+0xa9/0x150
[  227.350280][ T6736]  gfs2_sys_fs_add+0x234/0x450
[  227.350306][ T6736]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.350335][ T6736]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.350363][ T6736]  gfs2_fill_super+0x13c0/0x20d0
[  227.350390][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.350411][ T6736]  ? sb_set_blocksize+0x104/0x180
[  227.350437][ T6736]  ? setup_bdev_super+0x4c1/0x5b0
[  227.350460][ T6736]  get_tree_bdev_flags+0x40e/0x4d0
[  227.350481][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.350502][ T6736]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.350528][ T6736]  gfs2_get_tree+0x51/0x1e0
[  227.350550][ T6736]  vfs_get_tree+0x92/0x2b0
[  227.350570][ T6736]  do_new_mount+0x2a2/0xa30
[  227.350595][ T6736]  ? ns_capable+0x8a/0xf0
[  227.350620][ T6736]  ? __pfx_do_new_mount+0x10/0x10
[  227.350642][ T6736]  ? path_mount+0x61c/0xfe0
[  227.350664][ T6736]  ? user_path_at+0x44/0x60
[  227.350685][ T6736]  __se_sys_mount+0x317/0x410
[  227.350711][ T6736]  ? __pfx___se_sys_mount+0x10/0x10
[  227.350736][ T6736]  ? rcu_is_watching+0x15/0xb0
[  227.350762][ T6736]  ? __x64_sys_mount+0x20/0xc0
[  227.350786][ T6736]  do_syscall_64+0xfa/0xfa0
[  227.350808][ T6736]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.350825][ T6736]  ? clear_bhb_loop+0x60/0xb0
[  227.350841][ T6736]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.350859][ T6736] RIP: 0033:0x7f2fdbf9038a
[  227.350876][ T6736] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  227.350893][ T6736] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.350916][ T6736] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  227.350931][ T6736] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  227.350943][ T6736] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  227.350957][ T6736] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  227.350969][ T6736] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  227.350991][ T6736]  </TASK>
[  227.351012][ T6736] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  227.670510][ T6736] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  227.906098][ T6739] loop1: detected capacity change from 0 to 32768
[  227.921630][ T6739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  227.929074][ T6739] CPU: 1 UID: 0 PID: 6739 Comm: syz.1.239 Not tainted syzkaller #0 PREEMPT(full) 
[  227.929100][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  227.929112][ T6739] Call Trace:
[  227.929120][ T6739]  <TASK>
[  227.929127][ T6739]  dump_stack_lvl+0x189/0x250
[  227.929158][ T6739]  ? __pfx_dump_stack_lvl+0x10/0x10
[  227.929180][ T6739]  ? __pfx__printk+0x10/0x10
[  227.929203][ T6739]  ? kernfs_root+0x1c/0x230
[  227.929223][ T6739]  ? kernfs_path_from_node+0x250/0x290
[  227.929239][ T6739]  ? kernfs_path_from_node+0x2f/0x290
[  227.929257][ T6739]  sysfs_create_dir_ns+0x259/0x280
[  227.929284][ T6739]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  227.929312][ T6739]  ? do_raw_spin_unlock+0x122/0x240
[  227.929333][ T6739]  kobject_add_internal+0x59f/0xb40
[  227.929358][ T6739]  kobject_init_and_add+0x125/0x190
[  227.929384][ T6739]  ? __pfx_kobject_init_and_add+0x10/0x10
[  227.929406][ T6739]  ? __raw_spin_lock_init+0x45/0x100
[  227.929426][ T6739]  ? __init_swait_queue_head+0xa9/0x150
[  227.929445][ T6739]  gfs2_sys_fs_add+0x234/0x450
[  227.929473][ T6739]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.929500][ T6739]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.929526][ T6739]  gfs2_fill_super+0x13c0/0x20d0
[  227.929552][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.929574][ T6739]  ? sb_set_blocksize+0x104/0x180
[  227.929599][ T6739]  ? setup_bdev_super+0x4c1/0x5b0
[  227.929622][ T6739]  get_tree_bdev_flags+0x40e/0x4d0
[  227.929644][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.929665][ T6739]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.929689][ T6739]  gfs2_get_tree+0x51/0x1e0
[  227.929710][ T6739]  vfs_get_tree+0x92/0x2b0
[  227.929732][ T6739]  do_new_mount+0x2a2/0xa30
[  227.929757][ T6739]  ? ns_capable+0x8a/0xf0
[  227.929786][ T6739]  ? __pfx_do_new_mount+0x10/0x10
[  227.929807][ T6739]  ? path_mount+0x61c/0xfe0
[  227.929826][ T6739]  ? user_path_at+0x44/0x60
[  227.929860][ T6739]  __se_sys_mount+0x317/0x410
[  227.929884][ T6739]  ? __pfx___se_sys_mount+0x10/0x10
[  227.929909][ T6739]  ? rcu_is_watching+0x15/0xb0
[  227.929934][ T6739]  ? __x64_sys_mount+0x20/0xc0
[  227.929958][ T6739]  do_syscall_64+0xfa/0xfa0
[  227.929981][ T6739]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.930000][ T6739]  ? clear_bhb_loop+0x60/0xb0
[  227.930019][ T6739]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.930037][ T6739] RIP: 0033:0x7f2fdbf9038a
[  227.930054][ T6739] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  227.930071][ T6739] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.930092][ T6739] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  227.930107][ T6739] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  227.930120][ T6739] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  227.930132][ T6739] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  227.930145][ T6739] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  227.930167][ T6739]  </TASK>
[  228.232555][ T6739] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  228.247209][ T6739] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.485469][ T6742] loop1: detected capacity change from 0 to 32768
[  228.500898][ T6742] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.508513][ T6742] CPU: 0 UID: 0 PID: 6742 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT(full) 
[  228.508541][ T6742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.508553][ T6742] Call Trace:
[  228.508561][ T6742]  <TASK>
[  228.508569][ T6742]  dump_stack_lvl+0x189/0x250
[  228.508598][ T6742]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.508621][ T6742]  ? __pfx__printk+0x10/0x10
[  228.508644][ T6742]  ? kernfs_root+0x1c/0x230
[  228.508664][ T6742]  ? kernfs_path_from_node+0x250/0x290
[  228.508681][ T6742]  ? kernfs_path_from_node+0x2f/0x290
[  228.508699][ T6742]  sysfs_create_dir_ns+0x259/0x280
[  228.508727][ T6742]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.508754][ T6742]  ? do_raw_spin_unlock+0x122/0x240
[  228.508775][ T6742]  kobject_add_internal+0x59f/0xb40
[  228.508802][ T6742]  kobject_init_and_add+0x125/0x190
[  228.508839][ T6742]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.508861][ T6742]  ? __raw_spin_lock_init+0x45/0x100
[  228.508881][ T6742]  ? __init_swait_queue_head+0xa9/0x150
[  228.508901][ T6742]  gfs2_sys_fs_add+0x234/0x450
[  228.508927][ T6742]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.508956][ T6742]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.508981][ T6742]  gfs2_fill_super+0x13c0/0x20d0
[  228.509008][ T6742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.509030][ T6742]  ? sb_set_blocksize+0x104/0x180
[  228.509056][ T6742]  ? setup_bdev_super+0x4c1/0x5b0
[  228.509078][ T6742]  get_tree_bdev_flags+0x40e/0x4d0
[  228.509099][ T6742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.509119][ T6742]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.509144][ T6742]  gfs2_get_tree+0x51/0x1e0
[  228.509166][ T6742]  vfs_get_tree+0x92/0x2b0
[  228.509187][ T6742]  do_new_mount+0x2a2/0xa30
[  228.509213][ T6742]  ? ns_capable+0x8a/0xf0
[  228.509239][ T6742]  ? __pfx_do_new_mount+0x10/0x10
[  228.509260][ T6742]  ? path_mount+0x61c/0xfe0
[  228.509281][ T6742]  ? user_path_at+0x44/0x60
[  228.509302][ T6742]  __se_sys_mount+0x317/0x410
[  228.509328][ T6742]  ? __pfx___se_sys_mount+0x10/0x10
[  228.509353][ T6742]  ? rcu_is_watching+0x15/0xb0
[  228.509378][ T6742]  ? __x64_sys_mount+0x20/0xc0
[  228.509401][ T6742]  do_syscall_64+0xfa/0xfa0
[  228.509424][ T6742]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.509442][ T6742]  ? clear_bhb_loop+0x60/0xb0
[  228.509463][ T6742]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.509481][ T6742] RIP: 0033:0x7f2fdbf9038a
[  228.509498][ T6742] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  228.509514][ T6742] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.509537][ T6742] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  228.509551][ T6742] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  228.509564][ T6742] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  228.509578][ T6742] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  228.509591][ T6742] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  228.509612][ T6742]  </TASK>
[  228.509633][ T6742] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  228.827214][ T6742] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.067559][ T6745] loop1: detected capacity change from 0 to 32768
[  229.089337][ T6745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.098420][ T6745] CPU: 0 UID: 0 PID: 6745 Comm: syz.1.241 Not tainted syzkaller #0 PREEMPT(full) 
[  229.098448][ T6745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.098461][ T6745] Call Trace:
[  229.098468][ T6745]  <TASK>
[  229.098476][ T6745]  dump_stack_lvl+0x189/0x250
[  229.098506][ T6745]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.098528][ T6745]  ? __pfx__printk+0x10/0x10
[  229.098553][ T6745]  ? kernfs_root+0x1c/0x230
[  229.098572][ T6745]  ? kernfs_path_from_node+0x250/0x290
[  229.098588][ T6745]  ? kernfs_path_from_node+0x2f/0x290
[  229.098606][ T6745]  sysfs_create_dir_ns+0x259/0x280
[  229.098634][ T6745]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.098661][ T6745]  ? do_raw_spin_unlock+0x122/0x240
[  229.098683][ T6745]  kobject_add_internal+0x59f/0xb40
[  229.098710][ T6745]  kobject_init_and_add+0x125/0x190
[  229.098735][ T6745]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.098758][ T6745]  ? __raw_spin_lock_init+0x45/0x100
[  229.098778][ T6745]  ? __init_swait_queue_head+0xa9/0x150
[  229.098799][ T6745]  gfs2_sys_fs_add+0x234/0x450
[  229.098823][ T6745]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.098853][ T6745]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.098879][ T6745]  gfs2_fill_super+0x13c0/0x20d0
[  229.098906][ T6745]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.098928][ T6745]  ? sb_set_blocksize+0x104/0x180
[  229.098954][ T6745]  ? setup_bdev_super+0x4c1/0x5b0
[  229.098978][ T6745]  get_tree_bdev_flags+0x40e/0x4d0
[  229.099000][ T6745]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.099020][ T6745]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.099046][ T6745]  gfs2_get_tree+0x51/0x1e0
[  229.099077][ T6745]  vfs_get_tree+0x92/0x2b0
[  229.099099][ T6745]  do_new_mount+0x2a2/0xa30
[  229.099123][ T6745]  ? ns_capable+0x8a/0xf0
[  229.099149][ T6745]  ? __pfx_do_new_mount+0x10/0x10
[  229.099170][ T6745]  ? path_mount+0x61c/0xfe0
[  229.099191][ T6745]  ? user_path_at+0x44/0x60
[  229.099212][ T6745]  __se_sys_mount+0x317/0x410
[  229.099238][ T6745]  ? __pfx___se_sys_mount+0x10/0x10
[  229.099263][ T6745]  ? rcu_is_watching+0x15/0xb0
[  229.099289][ T6745]  ? __x64_sys_mount+0x20/0xc0
[  229.099313][ T6745]  do_syscall_64+0xfa/0xfa0
[  229.099335][ T6745]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.099354][ T6745]  ? clear_bhb_loop+0x60/0xb0
[  229.099374][ T6745]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.099393][ T6745] RIP: 0033:0x7f2fdbf9038a
[  229.099410][ T6745] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  229.099427][ T6745] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.099450][ T6745] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  229.099465][ T6745] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  229.099478][ T6745] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  229.099492][ T6745] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.099506][ T6745] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  229.099527][ T6745]  </TASK>
[  229.099547][ T6745] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.421841][ T6745] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.658108][ T6748] loop1: detected capacity change from 0 to 32768
[  229.666880][ T6748] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.674787][ T6748] CPU: 0 UID: 0 PID: 6748 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT(full) 
[  229.674823][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.674835][ T6748] Call Trace:
[  229.674842][ T6748]  <TASK>
[  229.674850][ T6748]  dump_stack_lvl+0x189/0x250
[  229.674881][ T6748]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.674904][ T6748]  ? __pfx__printk+0x10/0x10
[  229.674928][ T6748]  ? kernfs_root+0x1c/0x230
[  229.674948][ T6748]  ? kernfs_path_from_node+0x250/0x290
[  229.674964][ T6748]  ? kernfs_path_from_node+0x2f/0x290
[  229.674982][ T6748]  sysfs_create_dir_ns+0x259/0x280
[  229.675010][ T6748]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.675036][ T6748]  ? do_raw_spin_unlock+0x122/0x240
[  229.675056][ T6748]  kobject_add_internal+0x59f/0xb40
[  229.675081][ T6748]  kobject_init_and_add+0x125/0x190
[  229.675105][ T6748]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.675126][ T6748]  ? __raw_spin_lock_init+0x45/0x100
[  229.675143][ T6748]  ? __init_swait_queue_head+0xa9/0x150
[  229.675162][ T6748]  gfs2_sys_fs_add+0x234/0x450
[  229.675187][ T6748]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.675215][ T6748]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.675241][ T6748]  gfs2_fill_super+0x13c0/0x20d0
[  229.675266][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.675286][ T6748]  ? sb_set_blocksize+0x104/0x180
[  229.675310][ T6748]  ? setup_bdev_super+0x4c1/0x5b0
[  229.675333][ T6748]  get_tree_bdev_flags+0x40e/0x4d0
[  229.675353][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.675373][ T6748]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.675397][ T6748]  gfs2_get_tree+0x51/0x1e0
[  229.675417][ T6748]  vfs_get_tree+0x92/0x2b0
[  229.675438][ T6748]  do_new_mount+0x2a2/0xa30
[  229.675461][ T6748]  ? ns_capable+0x8a/0xf0
[  229.675485][ T6748]  ? __pfx_do_new_mount+0x10/0x10
[  229.675506][ T6748]  ? path_mount+0x61c/0xfe0
[  229.675525][ T6748]  ? user_path_at+0x44/0x60
[  229.675545][ T6748]  __se_sys_mount+0x317/0x410
[  229.675569][ T6748]  ? __pfx___se_sys_mount+0x10/0x10
[  229.675592][ T6748]  ? rcu_is_watching+0x15/0xb0
[  229.675616][ T6748]  ? __x64_sys_mount+0x20/0xc0
[  229.675639][ T6748]  do_syscall_64+0xfa/0xfa0
[  229.675660][ T6748]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.675677][ T6748]  ? clear_bhb_loop+0x60/0xb0
[  229.675695][ T6748]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.675713][ T6748] RIP: 0033:0x7f2fdbf9038a
[  229.675730][ T6748] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  229.675746][ T6748] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.675767][ T6748] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  229.675782][ T6748] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  229.675794][ T6748] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  229.675806][ T6748] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.675829][ T6748] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  229.675849][ T6748]  </TASK>
[  229.675868][ T6748] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  229.993019][ T6748] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 11:51:32 executed programs: 228
[  230.230660][ T6751] loop1: detected capacity change from 0 to 32768
[  230.241522][ T6751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.249153][ T6751] CPU: 0 UID: 0 PID: 6751 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT(full) 
[  230.249180][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.249191][ T6751] Call Trace:
[  230.249199][ T6751]  <TASK>
[  230.249207][ T6751]  dump_stack_lvl+0x189/0x250
[  230.249236][ T6751]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.249259][ T6751]  ? __pfx__printk+0x10/0x10
[  230.249281][ T6751]  ? kernfs_root+0x1c/0x230
[  230.249301][ T6751]  ? kernfs_path_from_node+0x250/0x290
[  230.249317][ T6751]  ? kernfs_path_from_node+0x2f/0x290
[  230.249335][ T6751]  sysfs_create_dir_ns+0x259/0x280
[  230.249364][ T6751]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.249390][ T6751]  ? do_raw_spin_unlock+0x122/0x240
[  230.249412][ T6751]  kobject_add_internal+0x59f/0xb40
[  230.249440][ T6751]  kobject_init_and_add+0x125/0x190
[  230.249464][ T6751]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.249487][ T6751]  ? __raw_spin_lock_init+0x45/0x100
[  230.249506][ T6751]  ? __init_swait_queue_head+0xa9/0x150
[  230.249526][ T6751]  gfs2_sys_fs_add+0x234/0x450
[  230.249553][ T6751]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.249582][ T6751]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.249608][ T6751]  gfs2_fill_super+0x13c0/0x20d0
[  230.249634][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.249655][ T6751]  ? sb_set_blocksize+0x104/0x180
[  230.249680][ T6751]  ? setup_bdev_super+0x4c1/0x5b0
[  230.249704][ T6751]  get_tree_bdev_flags+0x40e/0x4d0
[  230.249726][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.249746][ T6751]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.249771][ T6751]  gfs2_get_tree+0x51/0x1e0
[  230.249797][ T6751]  vfs_get_tree+0x92/0x2b0
[  230.249816][ T6751]  do_new_mount+0x2a2/0xa30
[  230.249838][ T6751]  ? ns_capable+0x8a/0xf0
[  230.249862][ T6751]  ? __pfx_do_new_mount+0x10/0x10
[  230.249884][ T6751]  ? path_mount+0x61c/0xfe0
[  230.249905][ T6751]  ? user_path_at+0x44/0x60
[  230.249925][ T6751]  __se_sys_mount+0x317/0x410
[  230.249951][ T6751]  ? __pfx___se_sys_mount+0x10/0x10
[  230.249976][ T6751]  ? rcu_is_watching+0x15/0xb0
[  230.250001][ T6751]  ? __x64_sys_mount+0x20/0xc0
[  230.250025][ T6751]  do_syscall_64+0xfa/0xfa0
[  230.250057][ T6751]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.250076][ T6751]  ? clear_bhb_loop+0x60/0xb0
[  230.250096][ T6751]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.250114][ T6751] RIP: 0033:0x7f2fdbf9038a
[  230.250132][ T6751] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  230.250149][ T6751] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.250172][ T6751] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  230.250185][ T6751] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  230.250199][ T6751] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  230.250211][ T6751] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  230.250224][ T6751] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  230.250246][ T6751]  </TASK>
[  230.554166][ T6751] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  230.568462][ T6751] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.806077][ T6754] loop1: detected capacity change from 0 to 32768
[  230.825333][ T6754] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.833539][ T6754] CPU: 0 UID: 0 PID: 6754 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT(full) 
[  230.833567][ T6754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.833579][ T6754] Call Trace:
[  230.833586][ T6754]  <TASK>
[  230.833594][ T6754]  dump_stack_lvl+0x189/0x250
[  230.833624][ T6754]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.833647][ T6754]  ? __pfx__printk+0x10/0x10
[  230.833670][ T6754]  ? kernfs_root+0x1c/0x230
[  230.833690][ T6754]  ? kernfs_path_from_node+0x250/0x290
[  230.833707][ T6754]  ? kernfs_path_from_node+0x2f/0x290
[  230.833725][ T6754]  sysfs_create_dir_ns+0x259/0x280
[  230.833753][ T6754]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.833793][ T6754]  ? do_raw_spin_unlock+0x122/0x240
[  230.833815][ T6754]  kobject_add_internal+0x59f/0xb40
[  230.833842][ T6754]  kobject_init_and_add+0x125/0x190
[  230.833868][ T6754]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.833891][ T6754]  ? __raw_spin_lock_init+0x45/0x100
[  230.833911][ T6754]  ? __init_swait_queue_head+0xa9/0x150
[  230.833932][ T6754]  gfs2_sys_fs_add+0x234/0x450
[  230.833959][ T6754]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.833988][ T6754]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.834015][ T6754]  gfs2_fill_super+0x13c0/0x20d0
[  230.834041][ T6754]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.834063][ T6754]  ? sb_set_blocksize+0x104/0x180
[  230.834088][ T6754]  ? setup_bdev_super+0x4c1/0x5b0
[  230.834112][ T6754]  get_tree_bdev_flags+0x40e/0x4d0
[  230.834134][ T6754]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.834154][ T6754]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.834181][ T6754]  gfs2_get_tree+0x51/0x1e0
[  230.834202][ T6754]  vfs_get_tree+0x92/0x2b0
[  230.834224][ T6754]  do_new_mount+0x2a2/0xa30
[  230.834249][ T6754]  ? ns_capable+0x8a/0xf0
[  230.834275][ T6754]  ? __pfx_do_new_mount+0x10/0x10
[  230.834297][ T6754]  ? path_mount+0x61c/0xfe0
[  230.834319][ T6754]  ? user_path_at+0x44/0x60
[  230.834340][ T6754]  __se_sys_mount+0x317/0x410
[  230.834366][ T6754]  ? __pfx___se_sys_mount+0x10/0x10
[  230.834391][ T6754]  ? rcu_is_watching+0x15/0xb0
[  230.834417][ T6754]  ? __x64_sys_mount+0x20/0xc0
[  230.834441][ T6754]  do_syscall_64+0xfa/0xfa0
[  230.834464][ T6754]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.834483][ T6754]  ? clear_bhb_loop+0x60/0xb0
[  230.834504][ T6754]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.834523][ T6754] RIP: 0033:0x7f2fdbf9038a
[  230.834541][ T6754] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  230.834559][ T6754] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.834582][ T6754] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  230.834595][ T6754] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  230.834608][ T6754] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  230.834620][ T6754] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  230.834633][ T6754] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  230.834654][ T6754]  </TASK>
[  230.834674][ T6754] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  231.150977][ T6754] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.390719][ T6757] loop1: detected capacity change from 0 to 32768
[  231.402292][ T6757] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.414741][ T6757] CPU: 1 UID: 0 PID: 6757 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT(full) 
[  231.414771][ T6757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.414840][ T6757] Call Trace:
[  231.414848][ T6757]  <TASK>
[  231.414856][ T6757]  dump_stack_lvl+0x189/0x250
[  231.414886][ T6757]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.414908][ T6757]  ? __pfx__printk+0x10/0x10
[  231.414931][ T6757]  ? kernfs_root+0x1c/0x230
[  231.414951][ T6757]  ? kernfs_path_from_node+0x250/0x290
[  231.414966][ T6757]  ? kernfs_path_from_node+0x2f/0x290
[  231.414982][ T6757]  sysfs_create_dir_ns+0x259/0x280
[  231.415010][ T6757]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.415036][ T6757]  ? do_raw_spin_unlock+0x122/0x240
[  231.415058][ T6757]  kobject_add_internal+0x59f/0xb40
[  231.415085][ T6757]  kobject_init_and_add+0x125/0x190
[  231.415111][ T6757]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.415133][ T6757]  ? __raw_spin_lock_init+0x45/0x100
[  231.415152][ T6757]  ? __init_swait_queue_head+0xa9/0x150
[  231.415171][ T6757]  gfs2_sys_fs_add+0x234/0x450
[  231.415198][ T6757]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.415226][ T6757]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.415251][ T6757]  gfs2_fill_super+0x13c0/0x20d0
[  231.415277][ T6757]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.415298][ T6757]  ? sb_set_blocksize+0x104/0x180
[  231.415325][ T6757]  ? setup_bdev_super+0x4c1/0x5b0
[  231.415349][ T6757]  get_tree_bdev_flags+0x40e/0x4d0
[  231.415371][ T6757]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.415391][ T6757]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.415416][ T6757]  gfs2_get_tree+0x51/0x1e0
[  231.415437][ T6757]  vfs_get_tree+0x92/0x2b0
[  231.415458][ T6757]  do_new_mount+0x2a2/0xa30
[  231.415484][ T6757]  ? ns_capable+0x8a/0xf0
[  231.415509][ T6757]  ? __pfx_do_new_mount+0x10/0x10
[  231.415529][ T6757]  ? path_mount+0x61c/0xfe0
[  231.415550][ T6757]  ? user_path_at+0x44/0x60
[  231.415571][ T6757]  __se_sys_mount+0x317/0x410
[  231.415598][ T6757]  ? __pfx___se_sys_mount+0x10/0x10
[  231.415622][ T6757]  ? rcu_is_watching+0x15/0xb0
[  231.415649][ T6757]  ? __x64_sys_mount+0x20/0xc0
[  231.415671][ T6757]  do_syscall_64+0xfa/0xfa0
[  231.415693][ T6757]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.415711][ T6757]  ? clear_bhb_loop+0x60/0xb0
[  231.415730][ T6757]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.415747][ T6757] RIP: 0033:0x7f2fdbf9038a
[  231.415764][ T6757] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  231.415793][ T6757] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.415817][ T6757] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  231.415832][ T6757] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  231.415845][ T6757] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  231.415858][ T6757] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  231.415870][ T6757] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  231.415890][ T6757]  </TASK>
[  231.415912][ T6757] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  231.732410][ T6757] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.965515][ T6760] loop1: detected capacity change from 0 to 32768
[  231.980023][ T6760] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.988194][ T6760] CPU: 1 UID: 0 PID: 6760 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT(full) 
[  231.988222][ T6760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.988235][ T6760] Call Trace:
[  231.988243][ T6760]  <TASK>
[  231.988251][ T6760]  dump_stack_lvl+0x189/0x250
[  231.988282][ T6760]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.988304][ T6760]  ? __pfx__printk+0x10/0x10
[  231.988327][ T6760]  ? kernfs_root+0x1c/0x230
[  231.988346][ T6760]  ? kernfs_path_from_node+0x250/0x290
[  231.988362][ T6760]  ? kernfs_path_from_node+0x2f/0x290
[  231.988380][ T6760]  sysfs_create_dir_ns+0x259/0x280
[  231.988408][ T6760]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.988435][ T6760]  ? do_raw_spin_unlock+0x122/0x240
[  231.988457][ T6760]  kobject_add_internal+0x59f/0xb40
[  231.988485][ T6760]  kobject_init_and_add+0x125/0x190
[  231.988510][ T6760]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.988532][ T6760]  ? __raw_spin_lock_init+0x45/0x100
[  231.988552][ T6760]  ? __init_swait_queue_head+0xa9/0x150
[  231.988572][ T6760]  gfs2_sys_fs_add+0x234/0x450
[  231.988598][ T6760]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.988626][ T6760]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.988653][ T6760]  gfs2_fill_super+0x13c0/0x20d0
[  231.988679][ T6760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.988700][ T6760]  ? sb_set_blocksize+0x104/0x180
[  231.988726][ T6760]  ? setup_bdev_super+0x4c1/0x5b0
[  231.988749][ T6760]  get_tree_bdev_flags+0x40e/0x4d0
[  231.988769][ T6760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.988802][ T6760]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.988828][ T6760]  gfs2_get_tree+0x51/0x1e0
[  231.988850][ T6760]  vfs_get_tree+0x92/0x2b0
[  231.988872][ T6760]  do_new_mount+0x2a2/0xa30
[  231.988896][ T6760]  ? ns_capable+0x8a/0xf0
[  231.988922][ T6760]  ? __pfx_do_new_mount+0x10/0x10
[  231.988943][ T6760]  ? path_mount+0x61c/0xfe0
[  231.988964][ T6760]  ? user_path_at+0x44/0x60
[  231.988985][ T6760]  __se_sys_mount+0x317/0x410
[  231.989011][ T6760]  ? __pfx___se_sys_mount+0x10/0x10
[  231.989034][ T6760]  ? rcu_is_watching+0x15/0xb0
[  231.989060][ T6760]  ? __x64_sys_mount+0x20/0xc0
[  231.989083][ T6760]  do_syscall_64+0xfa/0xfa0
[  231.989105][ T6760]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.989123][ T6760]  ? clear_bhb_loop+0x60/0xb0
[  231.989144][ T6760]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.989162][ T6760] RIP: 0033:0x7f2fdbf9038a
[  231.989178][ T6760] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  231.989195][ T6760] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.989218][ T6760] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  231.989232][ T6760] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  231.989246][ T6760] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  231.989258][ T6760] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  231.989272][ T6760] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  231.989294][ T6760]  </TASK>
[  231.989314][ T6760] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.307529][ T6760] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  232.539230][ T6763] loop1: detected capacity change from 0 to 32768
[  232.551683][ T6763] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.559259][ T6763] CPU: 1 UID: 0 PID: 6763 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  232.559289][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.559301][ T6763] Call Trace:
[  232.559309][ T6763]  <TASK>
[  232.559317][ T6763]  dump_stack_lvl+0x189/0x250
[  232.559348][ T6763]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.559370][ T6763]  ? __pfx__printk+0x10/0x10
[  232.559394][ T6763]  ? kernfs_root+0x1c/0x230
[  232.559414][ T6763]  ? kernfs_path_from_node+0x250/0x290
[  232.559429][ T6763]  ? kernfs_path_from_node+0x2f/0x290
[  232.559447][ T6763]  sysfs_create_dir_ns+0x259/0x280
[  232.559475][ T6763]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.559502][ T6763]  ? do_raw_spin_unlock+0x122/0x240
[  232.559524][ T6763]  kobject_add_internal+0x59f/0xb40
[  232.559552][ T6763]  kobject_init_and_add+0x125/0x190
[  232.559577][ T6763]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.559599][ T6763]  ? __raw_spin_lock_init+0x45/0x100
[  232.559618][ T6763]  ? __init_swait_queue_head+0xa9/0x150
[  232.559638][ T6763]  gfs2_sys_fs_add+0x234/0x450
[  232.559666][ T6763]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.559694][ T6763]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.559721][ T6763]  gfs2_fill_super+0x13c0/0x20d0
[  232.559757][ T6763]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.559792][ T6763]  ? sb_set_blocksize+0x104/0x180
[  232.559824][ T6763]  ? setup_bdev_super+0x4c1/0x5b0
[  232.559847][ T6763]  get_tree_bdev_flags+0x40e/0x4d0
[  232.559867][ T6763]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.559887][ T6763]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.559913][ T6763]  gfs2_get_tree+0x51/0x1e0
[  232.559935][ T6763]  vfs_get_tree+0x92/0x2b0
[  232.559956][ T6763]  do_new_mount+0x2a2/0xa30
[  232.559981][ T6763]  ? ns_capable+0x8a/0xf0
[  232.560006][ T6763]  ? __pfx_do_new_mount+0x10/0x10
[  232.560026][ T6763]  ? path_mount+0x61c/0xfe0
[  232.560047][ T6763]  ? user_path_at+0x44/0x60
[  232.560067][ T6763]  __se_sys_mount+0x317/0x410
[  232.560092][ T6763]  ? __pfx___se_sys_mount+0x10/0x10
[  232.560117][ T6763]  ? rcu_is_watching+0x15/0xb0
[  232.560142][ T6763]  ? __x64_sys_mount+0x20/0xc0
[  232.560166][ T6763]  do_syscall_64+0xfa/0xfa0
[  232.560188][ T6763]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.560207][ T6763]  ? clear_bhb_loop+0x60/0xb0
[  232.560226][ T6763]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.560245][ T6763] RIP: 0033:0x7f2fdbf9038a
[  232.560262][ T6763] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  232.560279][ T6763] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.560302][ T6763] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  232.560317][ T6763] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  232.560330][ T6763] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  232.560343][ T6763] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  232.560356][ T6763] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  232.560377][ T6763]  </TASK>
[  232.865218][ T6763] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  232.880200][ T6763] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  233.119038][ T6766] loop1: detected capacity change from 0 to 32768
[  233.140962][ T6766] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.151004][ T6766] CPU: 0 UID: 0 PID: 6766 Comm: syz.1.248 Not tainted syzkaller #0 PREEMPT(full) 
[  233.151033][ T6766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.151045][ T6766] Call Trace:
[  233.151052][ T6766]  <TASK>
[  233.151059][ T6766]  dump_stack_lvl+0x189/0x250
[  233.151089][ T6766]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.151112][ T6766]  ? __pfx__printk+0x10/0x10
[  233.151135][ T6766]  ? kernfs_root+0x1c/0x230
[  233.151154][ T6766]  ? kernfs_path_from_node+0x250/0x290
[  233.151171][ T6766]  ? kernfs_path_from_node+0x2f/0x290
[  233.151189][ T6766]  sysfs_create_dir_ns+0x259/0x280
[  233.151217][ T6766]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.151245][ T6766]  ? do_raw_spin_unlock+0x122/0x240
[  233.151267][ T6766]  kobject_add_internal+0x59f/0xb40
[  233.151294][ T6766]  kobject_init_and_add+0x125/0x190
[  233.151318][ T6766]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.151341][ T6766]  ? __raw_spin_lock_init+0x45/0x100
[  233.151360][ T6766]  ? __init_swait_queue_head+0xa9/0x150
[  233.151380][ T6766]  gfs2_sys_fs_add+0x234/0x450
[  233.151408][ T6766]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.151435][ T6766]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.151463][ T6766]  gfs2_fill_super+0x13c0/0x20d0
[  233.151488][ T6766]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.151510][ T6766]  ? sb_set_blocksize+0x104/0x180
[  233.151535][ T6766]  ? setup_bdev_super+0x4c1/0x5b0
[  233.151558][ T6766]  get_tree_bdev_flags+0x40e/0x4d0
[  233.151579][ T6766]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.151600][ T6766]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.151626][ T6766]  gfs2_get_tree+0x51/0x1e0
[  233.151647][ T6766]  vfs_get_tree+0x92/0x2b0
[  233.151669][ T6766]  do_new_mount+0x2a2/0xa30
[  233.151693][ T6766]  ? ns_capable+0x8a/0xf0
[  233.151719][ T6766]  ? __pfx_do_new_mount+0x10/0x10
[  233.151750][ T6766]  ? path_mount+0x61c/0xfe0
[  233.151771][ T6766]  ? user_path_at+0x44/0x60
[  233.151791][ T6766]  __se_sys_mount+0x317/0x410
[  233.151816][ T6766]  ? __pfx___se_sys_mount+0x10/0x10
[  233.151839][ T6766]  ? rcu_is_watching+0x15/0xb0
[  233.151860][ T6766]  ? __x64_sys_mount+0x20/0xc0
[  233.151875][ T6766]  do_syscall_64+0xfa/0xfa0
[  233.151888][ T6766]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.151900][ T6766]  ? clear_bhb_loop+0x60/0xb0
[  233.151912][ T6766]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.151923][ T6766] RIP: 0033:0x7f2fdbf9038a
[  233.151935][ T6766] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  233.151945][ T6766] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.151960][ T6766] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  233.151969][ T6766] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  233.151977][ T6766] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  233.151987][ T6766] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  233.151995][ T6766] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  233.152007][ T6766]  </TASK>
[  233.152109][ T6766] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  233.473127][ T6766] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  233.709933][ T6770] loop1: detected capacity change from 0 to 32768
[  233.727689][ T6770] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.735512][ T6770] CPU: 0 UID: 0 PID: 6770 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT(full) 
[  233.735539][ T6770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.735551][ T6770] Call Trace:
[  233.735559][ T6770]  <TASK>
[  233.735566][ T6770]  dump_stack_lvl+0x189/0x250
[  233.735596][ T6770]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.735618][ T6770]  ? __pfx__printk+0x10/0x10
[  233.735642][ T6770]  ? kernfs_root+0x1c/0x230
[  233.735662][ T6770]  ? kernfs_path_from_node+0x250/0x290
[  233.735678][ T6770]  ? kernfs_path_from_node+0x2f/0x290
[  233.735695][ T6770]  sysfs_create_dir_ns+0x259/0x280
[  233.735721][ T6770]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.735748][ T6770]  ? do_raw_spin_unlock+0x122/0x240
[  233.735769][ T6770]  kobject_add_internal+0x59f/0xb40
[  233.735796][ T6770]  kobject_init_and_add+0x125/0x190
[  233.735822][ T6770]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.735844][ T6770]  ? __raw_spin_lock_init+0x45/0x100
[  233.735863][ T6770]  ? __init_swait_queue_head+0xa9/0x150
[  233.735882][ T6770]  gfs2_sys_fs_add+0x234/0x450
[  233.735908][ T6770]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.735934][ T6770]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.735960][ T6770]  gfs2_fill_super+0x13c0/0x20d0
[  233.735987][ T6770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.736008][ T6770]  ? sb_set_blocksize+0x104/0x180
[  233.736044][ T6770]  ? setup_bdev_super+0x4c1/0x5b0
[  233.736066][ T6770]  get_tree_bdev_flags+0x40e/0x4d0
[  233.736087][ T6770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.736108][ T6770]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.736134][ T6770]  gfs2_get_tree+0x51/0x1e0
[  233.736155][ T6770]  vfs_get_tree+0x92/0x2b0
[  233.736177][ T6770]  do_new_mount+0x2a2/0xa30
[  233.736200][ T6770]  ? ns_capable+0x8a/0xf0
[  233.736225][ T6770]  ? __pfx_do_new_mount+0x10/0x10
[  233.736247][ T6770]  ? path_mount+0x61c/0xfe0
[  233.736267][ T6770]  ? user_path_at+0x44/0x60
[  233.736287][ T6770]  __se_sys_mount+0x317/0x410
[  233.736313][ T6770]  ? __pfx___se_sys_mount+0x10/0x10
[  233.736337][ T6770]  ? rcu_is_watching+0x15/0xb0
[  233.736361][ T6770]  ? __x64_sys_mount+0x20/0xc0
[  233.736385][ T6770]  do_syscall_64+0xfa/0xfa0
[  233.736407][ T6770]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.736426][ T6770]  ? clear_bhb_loop+0x60/0xb0
[  233.736446][ T6770]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.736464][ T6770] RIP: 0033:0x7f2fdbf9038a
[  233.736481][ T6770] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  233.736497][ T6770] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.736519][ T6770] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  233.736534][ T6770] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  233.736548][ T6770] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  233.736560][ T6770] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  233.736573][ T6770] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  233.736595][ T6770]  </TASK>
[  233.736615][ T6770] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  234.056322][ T6770] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.302402][ T6774] loop1: detected capacity change from 0 to 32768
[  234.315353][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.323106][ T6774] CPU: 1 UID: 0 PID: 6774 Comm: syz.1.250 Not tainted syzkaller #0 PREEMPT(full) 
[  234.323132][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.323144][ T6774] Call Trace:
[  234.323152][ T6774]  <TASK>
[  234.323159][ T6774]  dump_stack_lvl+0x189/0x250
[  234.323195][ T6774]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.323218][ T6774]  ? __pfx__printk+0x10/0x10
[  234.323242][ T6774]  ? kernfs_root+0x1c/0x230
[  234.323262][ T6774]  ? kernfs_path_from_node+0x250/0x290
[  234.323278][ T6774]  ? kernfs_path_from_node+0x2f/0x290
[  234.323296][ T6774]  sysfs_create_dir_ns+0x259/0x280
[  234.323323][ T6774]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.323350][ T6774]  ? do_raw_spin_unlock+0x122/0x240
[  234.323371][ T6774]  kobject_add_internal+0x59f/0xb40
[  234.323398][ T6774]  kobject_init_and_add+0x125/0x190
[  234.323423][ T6774]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.323446][ T6774]  ? __raw_spin_lock_init+0x45/0x100
[  234.323465][ T6774]  ? __init_swait_queue_head+0xa9/0x150
[  234.323485][ T6774]  gfs2_sys_fs_add+0x234/0x450
[  234.323511][ T6774]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.323540][ T6774]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.323567][ T6774]  gfs2_fill_super+0x13c0/0x20d0
[  234.323593][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.323615][ T6774]  ? sb_set_blocksize+0x104/0x180
[  234.323639][ T6774]  ? setup_bdev_super+0x4c1/0x5b0
[  234.323662][ T6774]  get_tree_bdev_flags+0x40e/0x4d0
[  234.323682][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.323702][ T6774]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.323727][ T6774]  gfs2_get_tree+0x51/0x1e0
[  234.323748][ T6774]  vfs_get_tree+0x92/0x2b0
[  234.323768][ T6774]  do_new_mount+0x2a2/0xa30
[  234.323792][ T6774]  ? ns_capable+0x8a/0xf0
[  234.323817][ T6774]  ? __pfx_do_new_mount+0x10/0x10
[  234.323838][ T6774]  ? path_mount+0x61c/0xfe0
[  234.323859][ T6774]  ? user_path_at+0x44/0x60
[  234.323880][ T6774]  __se_sys_mount+0x317/0x410
[  234.323904][ T6774]  ? __pfx___se_sys_mount+0x10/0x10
[  234.323928][ T6774]  ? rcu_is_watching+0x15/0xb0
[  234.323953][ T6774]  ? __x64_sys_mount+0x20/0xc0
[  234.323976][ T6774]  do_syscall_64+0xfa/0xfa0
[  234.323997][ T6774]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.324026][ T6774]  ? clear_bhb_loop+0x60/0xb0
[  234.324048][ T6774]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.324066][ T6774] RIP: 0033:0x7f2fdbf9038a
[  234.324084][ 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
[  234.324101][ T6774] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.324124][ T6774] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  234.324138][ T6774] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  234.324151][ T6774] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  234.324164][ T6774] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.324176][ T6774] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  234.324197][ T6774]  </TASK>
[  234.324241][ 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.
[  234.641903][ T6774] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.889256][ T6779] loop1: detected capacity change from 0 to 32768
[  234.911149][ T6779] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.918743][ T6779] CPU: 0 UID: 0 PID: 6779 Comm: syz.1.251 Not tainted syzkaller #0 PREEMPT(full) 
[  234.918780][ T6779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.918792][ T6779] Call Trace:
[  234.918800][ T6779]  <TASK>
[  234.918808][ T6779]  dump_stack_lvl+0x189/0x250
[  234.918838][ T6779]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.918860][ T6779]  ? __pfx__printk+0x10/0x10
[  234.918883][ T6779]  ? kernfs_root+0x1c/0x230
[  234.918903][ T6779]  ? kernfs_path_from_node+0x250/0x290
[  234.918919][ T6779]  ? kernfs_path_from_node+0x2f/0x290
[  234.918937][ T6779]  sysfs_create_dir_ns+0x259/0x280
[  234.918965][ T6779]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.918993][ T6779]  ? do_raw_spin_unlock+0x122/0x240
[  234.919013][ T6779]  kobject_add_internal+0x59f/0xb40
[  234.919042][ T6779]  kobject_init_and_add+0x125/0x190
[  234.919067][ T6779]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.919091][ T6779]  ? __raw_spin_lock_init+0x45/0x100
[  234.919111][ T6779]  ? __init_swait_queue_head+0xa9/0x150
[  234.919131][ T6779]  gfs2_sys_fs_add+0x234/0x450
[  234.919157][ T6779]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.919186][ T6779]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.919214][ T6779]  gfs2_fill_super+0x13c0/0x20d0
[  234.919240][ T6779]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.919261][ T6779]  ? sb_set_blocksize+0x104/0x180
[  234.919287][ T6779]  ? setup_bdev_super+0x4c1/0x5b0
[  234.919310][ T6779]  get_tree_bdev_flags+0x40e/0x4d0
[  234.919333][ T6779]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.919354][ T6779]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.919380][ T6779]  gfs2_get_tree+0x51/0x1e0
[  234.919402][ T6779]  vfs_get_tree+0x92/0x2b0
[  234.919424][ T6779]  do_new_mount+0x2a2/0xa30
[  234.919450][ T6779]  ? ns_capable+0x8a/0xf0
[  234.919476][ T6779]  ? __pfx_do_new_mount+0x10/0x10
[  234.919498][ T6779]  ? path_mount+0x61c/0xfe0
[  234.919520][ T6779]  ? user_path_at+0x44/0x60
[  234.919542][ T6779]  __se_sys_mount+0x317/0x410
[  234.919568][ T6779]  ? __pfx___se_sys_mount+0x10/0x10
[  234.919593][ T6779]  ? rcu_is_watching+0x15/0xb0
[  234.919618][ T6779]  ? __x64_sys_mount+0x20/0xc0
[  234.919642][ T6779]  do_syscall_64+0xfa/0xfa0
[  234.919664][ T6779]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.919683][ T6779]  ? clear_bhb_loop+0x60/0xb0
[  234.919704][ T6779]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.919722][ T6779] RIP: 0033:0x7f2fdbf9038a
[  234.919740][ T6779] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  234.919766][ T6779] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.919795][ T6779] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  234.919809][ T6779] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  234.919822][ T6779] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  234.919834][ T6779] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.919846][ T6779] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  234.919864][ T6779]  </TASK>
[  235.224855][ T6779] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.240363][ T6779] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/25 11:51:37 executed programs: 237
[  235.483792][ T6783] loop1: detected capacity change from 0 to 32768
[  235.500867][ T6783] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.508388][ T6783] CPU: 0 UID: 0 PID: 6783 Comm: syz.1.252 Not tainted syzkaller #0 PREEMPT(full) 
[  235.508416][ T6783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.508428][ T6783] Call Trace:
[  235.508436][ T6783]  <TASK>
[  235.508444][ T6783]  dump_stack_lvl+0x189/0x250
[  235.508473][ T6783]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.508496][ T6783]  ? __pfx__printk+0x10/0x10
[  235.508519][ T6783]  ? kernfs_root+0x1c/0x230
[  235.508538][ T6783]  ? kernfs_path_from_node+0x250/0x290
[  235.508553][ T6783]  ? kernfs_path_from_node+0x2f/0x290
[  235.508571][ T6783]  sysfs_create_dir_ns+0x259/0x280
[  235.508597][ T6783]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.508629][ T6783]  ? do_raw_spin_unlock+0x122/0x240
[  235.508649][ T6783]  kobject_add_internal+0x59f/0xb40
[  235.508677][ T6783]  kobject_init_and_add+0x125/0x190
[  235.508711][ T6783]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.508733][ T6783]  ? __raw_spin_lock_init+0x45/0x100
[  235.508752][ T6783]  ? __init_swait_queue_head+0xa9/0x150
[  235.508771][ T6783]  gfs2_sys_fs_add+0x234/0x450
[  235.508798][ T6783]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.508826][ T6783]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.508853][ T6783]  gfs2_fill_super+0x13c0/0x20d0
[  235.508880][ T6783]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.508901][ T6783]  ? sb_set_blocksize+0x104/0x180
[  235.508926][ T6783]  ? setup_bdev_super+0x4c1/0x5b0
[  235.508947][ T6783]  get_tree_bdev_flags+0x40e/0x4d0
[  235.508970][ T6783]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.508988][ T6783]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.509014][ T6783]  gfs2_get_tree+0x51/0x1e0
[  235.509035][ T6783]  vfs_get_tree+0x92/0x2b0
[  235.509058][ T6783]  do_new_mount+0x2a2/0xa30
[  235.509082][ T6783]  ? ns_capable+0x8a/0xf0
[  235.509107][ T6783]  ? __pfx_do_new_mount+0x10/0x10
[  235.509129][ T6783]  ? path_mount+0x61c/0xfe0
[  235.509160][ T6783]  ? user_path_at+0x44/0x60
[  235.509181][ T6783]  __se_sys_mount+0x317/0x410
[  235.509206][ T6783]  ? __pfx___se_sys_mount+0x10/0x10
[  235.509232][ T6783]  ? rcu_is_watching+0x15/0xb0
[  235.509257][ T6783]  ? __x64_sys_mount+0x20/0xc0
[  235.509280][ T6783]  do_syscall_64+0xfa/0xfa0
[  235.509303][ T6783]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.509322][ T6783]  ? clear_bhb_loop+0x60/0xb0
[  235.509342][ T6783]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.509360][ T6783] RIP: 0033:0x7f2fdbf9038a
[  235.509378][ 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
[  235.509394][ T6783] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.509416][ T6783] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  235.509431][ T6783] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  235.509444][ T6783] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  235.509457][ T6783] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  235.509470][ T6783] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  235.509491][ T6783]  </TASK>
[  235.509541][ 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.
[  235.829311][ T6783] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.067457][ T6786] loop1: detected capacity change from 0 to 32768
[  236.089764][ T6786] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.097522][ T6786] CPU: 1 UID: 0 PID: 6786 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT(full) 
[  236.097546][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.097559][ T6786] Call Trace:
[  236.097566][ T6786]  <TASK>
[  236.097574][ T6786]  dump_stack_lvl+0x189/0x250
[  236.097602][ T6786]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.097624][ T6786]  ? __pfx__printk+0x10/0x10
[  236.097646][ T6786]  ? kernfs_root+0x1c/0x230
[  236.097665][ T6786]  ? kernfs_path_from_node+0x250/0x290
[  236.097680][ T6786]  ? kernfs_path_from_node+0x2f/0x290
[  236.097697][ T6786]  sysfs_create_dir_ns+0x259/0x280
[  236.097731][ T6786]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.097757][ T6786]  ? do_raw_spin_unlock+0x122/0x240
[  236.097778][ T6786]  kobject_add_internal+0x59f/0xb40
[  236.097803][ T6786]  kobject_init_and_add+0x125/0x190
[  236.097826][ T6786]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.097848][ T6786]  ? __raw_spin_lock_init+0x45/0x100
[  236.097866][ T6786]  ? __init_swait_queue_head+0xa9/0x150
[  236.097885][ T6786]  gfs2_sys_fs_add+0x234/0x450
[  236.097910][ T6786]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.097937][ T6786]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.097961][ T6786]  gfs2_fill_super+0x13c0/0x20d0
[  236.097986][ T6786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.098006][ T6786]  ? sb_set_blocksize+0x104/0x180
[  236.098030][ T6786]  ? setup_bdev_super+0x4c1/0x5b0
[  236.098052][ T6786]  get_tree_bdev_flags+0x40e/0x4d0
[  236.098072][ T6786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.098091][ T6786]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.098116][ T6786]  gfs2_get_tree+0x51/0x1e0
[  236.098136][ T6786]  vfs_get_tree+0x92/0x2b0
[  236.098156][ T6786]  do_new_mount+0x2a2/0xa30
[  236.098179][ T6786]  ? ns_capable+0x8a/0xf0
[  236.098202][ T6786]  ? __pfx_do_new_mount+0x10/0x10
[  236.098223][ T6786]  ? path_mount+0x61c/0xfe0
[  236.098244][ T6786]  ? user_path_at+0x44/0x60
[  236.098264][ T6786]  __se_sys_mount+0x317/0x410
[  236.098288][ T6786]  ? __pfx___se_sys_mount+0x10/0x10
[  236.098311][ T6786]  ? rcu_is_watching+0x15/0xb0
[  236.098335][ T6786]  ? __x64_sys_mount+0x20/0xc0
[  236.098358][ T6786]  do_syscall_64+0xfa/0xfa0
[  236.098380][ T6786]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.098398][ T6786]  ? clear_bhb_loop+0x60/0xb0
[  236.098417][ T6786]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.098435][ T6786] RIP: 0033:0x7f2fdbf9038a
[  236.098452][ 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
[  236.098467][ T6786] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.098489][ T6786] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  236.098503][ T6786] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  236.098515][ T6786] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  236.098527][ T6786] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  236.098540][ T6786] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  236.098559][ T6786]  </TASK>
[  236.098578][ 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.
[  236.259230][   T31] INFO: task syz.0.17:6035 blocked for more than 143 seconds.
[  236.260946][ T6786] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.266126][   T31]       Not tainted syzkaller #0
[  236.437556][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  236.446551][   T31] task:syz.0.17        state:D stack:24744 pid:6035  tgid:6035  ppid:5973   task_flags:0x400140 flags:0x00004004
[  236.459409][   T31] Call Trace:
[  236.462948][   T31]  <TASK>
[  236.466735][   T31]  __schedule+0x1798/0x4cc0
[  236.473527][   T31]  ? __pfx___schedule+0x10/0x10
[  236.478623][   T31]  ? do_raw_spin_lock+0x121/0x290
[  236.483721][   T31]  ? schedule+0x91/0x360
[  236.488079][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.493504][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.498310][   T31]  ? lock_release+0x4b/0x3e0
[  236.502984][   T31]  schedule+0x165/0x360
[  236.507205][   T31]  io_schedule+0x80/0xd0
[  236.512162][   T31]  folio_wait_bit_common+0x6b0/0xb90
[  236.517645][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.522512][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  236.528379][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  236.534599][   T31]  ? unwind_next_frame+0xa5/0x2390
[  236.539760][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.544648][   T31]  ? unwind_next_frame+0xa5/0x2390
[  236.550445][   T31]  writeback_iter+0x8d8/0x12a0
[  236.555336][   T31]  iomap_writepages+0x14d/0x2d0
[  236.560508][   T31]  ? __pfx_iomap_writepages+0x10/0x10
[  236.565910][   T31]  ? folio_mark_accessed+0x42c/0x8b0
[  236.574365][   T31]  gfs2_writepages+0x177/0x250
[  236.579477][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  236.585208][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  236.591406][   T31]  do_writepages+0x32e/0x550
[  236.596049][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.600911][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  236.606142][   T31]  filemap_fdatawrite+0x199/0x240
[  236.611816][   T31]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  236.617426][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.622283][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  236.627514][   T31]  gfs2_log_flush+0x966/0x24c0
[  236.632965][   T31]  ? __pfx_gfs2_log_flush+0x10/0x10
[  236.638419][   T31]  ? __pfx___up_read+0x10/0x10
[  236.643354][   T31]  gfs2_trans_end+0x37c/0x570
[  236.648059][   T31]  gfs2_page_mkwrite+0x14a8/0x1910
[  236.653871][   T31]  ? do_page_mkwrite+0x14d/0x310
[  236.658936][   T31]  ? __pfx_gfs2_page_mkwrite+0x10/0x10
[  236.664483][   T31]  ? gfs2_fault+0x19a/0x1f0
[  236.669011][   T31]  ? do_page_mkwrite+0x14d/0x310
[  236.675725][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.681766][   T31]  do_page_mkwrite+0x14d/0x310
[  236.685925][ T6789] loop1: detected capacity change from 0 to 32768
[  236.686648][   T31]  __handle_mm_fault+0x1916/0x5400
[  236.699428][   T31]  ? __pfx___handle_mm_fault+0x10/0x10
[  236.705245][   T31]  ? rcu_is_watching+0x15/0xb0
[  236.711382][   T31]  ? lock_vma_under_rcu+0x3cb/0x450
[  236.717050][   T31]  ? __pfx_do_futex+0x10/0x10
[  236.722140][   T31]  ? __pfx_lock_vma_under_rcu+0x10/0x10
[  236.727699][ T6789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.727723][ T6789] CPU: 1 UID: 0 PID: 6789 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT(full) 
[  236.727742][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.727753][ T6789] Call Trace:
[  236.727761][ T6789]  <TASK>
[  236.727768][ T6789]  dump_stack_lvl+0x189/0x250
[  236.727793][ T6789]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.727812][ T6789]  ? __pfx__printk+0x10/0x10
[  236.727833][ T6789]  ? kernfs_root+0x1c/0x230
[  236.727851][ T6789]  ? kernfs_path_from_node+0x250/0x290
[  236.727865][ T6789]  ? kernfs_path_from_node+0x2f/0x290
[  236.727881][ T6789]  sysfs_create_dir_ns+0x259/0x280
[  236.727905][ T6789]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.727929][ T6789]  ? do_raw_spin_unlock+0x122/0x240
[  236.727948][ T6789]  kobject_add_internal+0x59f/0xb40
[  236.727972][ T6789]  kobject_init_and_add+0x125/0x190
[  236.728005][ T6789]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.728025][ T6789]  ? __raw_spin_lock_init+0x45/0x100
[  236.728042][ T6789]  ? __init_swait_queue_head+0xa9/0x150
[  236.728060][ T6789]  gfs2_sys_fs_add+0x234/0x450
[  236.728083][ T6789]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.728108][ T6789]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.728131][ T6789]  gfs2_fill_super+0x13c0/0x20d0
[  236.728155][ T6789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.728174][ T6789]  ? sb_set_blocksize+0x104/0x180
[  236.728196][ T6789]  ? setup_bdev_super+0x4c1/0x5b0
[  236.728216][ T6789]  get_tree_bdev_flags+0x40e/0x4d0
[  236.728235][ T6789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.728253][ T6789]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.728276][ T6789]  gfs2_get_tree+0x51/0x1e0
[  236.728294][ T6789]  vfs_get_tree+0x92/0x2b0
[  236.728313][ T6789]  do_new_mount+0x2a2/0xa30
[  236.728335][ T6789]  ? ns_capable+0x8a/0xf0
[  236.728356][ T6789]  ? __pfx_do_new_mount+0x10/0x10
[  236.728376][ T6789]  ? path_mount+0x61c/0xfe0
[  236.728394][ T6789]  ? user_path_at+0x44/0x60
[  236.728412][ T6789]  __se_sys_mount+0x317/0x410
[  236.728435][ T6789]  ? __pfx___se_sys_mount+0x10/0x10
[  236.728457][ T6789]  ? rcu_is_watching+0x15/0xb0
[  236.728479][ T6789]  ? __x64_sys_mount+0x20/0xc0
[  236.728500][ T6789]  do_syscall_64+0xfa/0xfa0
[  236.728520][ T6789]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.728536][ T6789]  ? clear_bhb_loop+0x60/0xb0
[  236.728554][ T6789]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.728571][ T6789] RIP: 0033:0x7f2fdbf9038a
[  236.728586][ 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
[  236.728600][ T6789] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.728621][ T6789] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  236.728634][ T6789] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  236.728646][ T6789] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  236.728657][ T6789] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  236.728669][ T6789] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  236.728687][ T6789]  </TASK>
[  236.728704][ 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.
[  236.735209][   T31]  handle_mm_fault+0x40a/0x8e0
[  236.762293][ T6789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.765626][   T31]  do_user_addr_fault+0xa81/0x1390
[  237.069934][   T31]  ? rcu_is_watching+0x15/0xb0
[  237.074832][   T31]  ? trace_page_fault_user+0x84/0x1e0
[  237.080795][   T31]  exc_page_fault+0x82/0x100
[  237.085430][   T31]  asm_exc_page_fault+0x26/0x30
[  237.090351][   T31] RIP: 0033:0x7f59a96550b3
[  237.094794][   T31] RSP: 002b:00007ffe629b0770 EFLAGS: 00010246
[  237.100902][   T31] RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
[  237.108895][   T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005555652fc3c8
[  237.116972][   T31] RBP: 00007ffe629b0878 R08: 0000000000000000 R09: 0000000000000000
[  237.125005][   T31] R10: 0000000000000000 R11: 0000000000000000 R12: 00007f59a99b5fac
[  237.133225][   T31] R13: 00007f59a99b5fa0 R14: fffffffffffffffe R15: 0000000000000006
[  237.141262][   T31]  </TASK>
[  237.144441][   T31] INFO: lockdep is turned off.
[  237.149246][   T31] NMI backtrace for cpu 0
[  237.149262][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  237.149282][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.149294][   T31] Call Trace:
[  237.149301][   T31]  <TASK>
[  237.149308][   T31]  dump_stack_lvl+0x189/0x250
[  237.149336][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.149355][   T31]  ? __pfx__printk+0x10/0x10
[  237.149383][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  237.149411][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  237.149436][   T31]  ? __pfx__printk+0x10/0x10
[  237.149462][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  237.149488][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  237.149518][   T31]  watchdog+0xf60/0xfa0
[  237.149543][   T31]  ? watchdog+0x1e2/0xfa0
[  237.149566][   T31]  kthread+0x711/0x8a0
[  237.149587][   T31]  ? __pfx_watchdog+0x10/0x10
[  237.149608][   T31]  ? __pfx_kthread+0x10/0x10
[  237.149627][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  237.149648][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  237.149669][   T31]  ? __pfx_kthread+0x10/0x10
[  237.149688][   T31]  ret_from_fork+0x47c/0x820
[  237.149716][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  237.149754][   T31]  ? __switch_to_asm+0x39/0x70
[  237.149784][   T31]  ? __switch_to_asm+0x33/0x70
[  237.149806][   T31]  ? __pfx_kthread+0x10/0x10
[  237.149824][   T31]  ret_from_fork_asm+0x1a/0x30
[  237.149851][   T31]  </TASK>
[  237.197949][ T6792] loop1: detected capacity change from 0 to 32768
[  237.199575][   T31] Sending NMI from CPU 0 to CPUs 1:
[  237.276187][ T6792] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.278958][    C1] NMI backtrace for cpu 1
[  237.278972][    C1] CPU: 1 UID: 0 PID: 6792 Comm: syz.1.255 Not tainted syzkaller #0 PREEMPT(full) 
[  237.278991][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.279001][    C1] RIP: 0010:seqcount_lockdep_reader_access+0x0/0x1c0
[  237.279024][    C1] Code: 46 9c d2 09 cc e8 70 a5 11 00 90 0f 0b 90 e9 08 fd ff ff e8 82 b7 cf 09 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 81 ec
[  237.279038][    C1] RSP: 0018:ffffc90000a08e20 EFLAGS: 00000802
[  237.279054][    C1] RAX: 1ffff110170e4f9d RBX: 1ffff110170e4f7d RCX: ffff8880303f8000
[  237.279065][    C1] RDX: 0000000000010000 RSI: ffff8880b8727be8 RDI: ffff8880b8727ac8
[  237.279077][    C1] RBP: ffff8880b8727ce8 R08: 0000000000000003 R09: 0000000000000004
[  237.279088][    C1] R10: dffffc0000000000 R11: fffff520001411b0 R12: ffff8880b8727ad0
[  237.279098][    C1] R13: 0000000000000000 R14: ffff8880b8727c68 R15: 1ffff110170e4f59
[  237.279109][    C1] FS:  0000555569cc3500(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
[  237.279123][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  237.279134][    C1] CR2: 00007f3f1b14e000 CR3: 000000007ba72000 CR4: 00000000003526f0
[  237.279151][    C1] Call Trace:
[  237.279157][    C1]  <IRQ>
[  237.279164][    C1]  ktime_get_update_offsets_now+0x60/0x3d0
[  237.279186][    C1]  hrtimer_interrupt+0x132/0xaa0
[  237.279206][    C1]  ? sched_clock+0x3f/0x60
[  237.279224][    C1]  ? sched_clock_cpu+0x74/0x430
[  237.279244][    C1]  ? __pfx_sched_clock_cpu+0x10/0x10
[  237.279263][    C1]  ? __irq_exit_rcu+0xd8/0x1f0
[  237.279283][    C1]  ? __pfx___irq_exit_rcu+0x10/0x10
[  237.279305][    C1]  __sysvec_apic_timer_interrupt+0x108/0x410
[  237.279321][    C1]  sysvec_apic_timer_interrupt+0xa1/0xc0
[  237.279339][    C1]  </IRQ>
[  237.279344][    C1]  <TASK>
[  237.279350][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  237.279366][    C1] RIP: 0010:vprintk_emit+0x58f/0x7a0
[  237.279387][    C1] Code: 85 32 01 00 00 e8 a1 81 1f 00 41 89 df 4d 85 f6 48 8b 1c 24 75 07 e8 90 81 1f 00 eb 06 e8 89 81 1f 00 fb 48 c7 c7 80 02 33 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 b9 35
[  237.279399][    C1] RSP: 0018:ffffc9000acd74a0 EFLAGS: 00000293
[  237.279412][    C1] RAX: ffffffff81a10d47 RBX: ffffffff81a10c04 RCX: ffff8880303f8000
[  237.279423][    C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e330280
[  237.279433][    C1] RBP: ffffc9000acd75b0 R08: ffffffff8fc40337 R09: 1ffffffff1f88066
[  237.279444][    C1] R10: dffffc0000000000 R11: fffffbfff1f88067 R12: dffffc0000000000
[  237.279454][    C1] R13: 1ffff9200159ae98 R14: 0000000000000200 R15: 000000000000003a
[  237.279466][    C1]  ? vprintk_emit+0x444/0x7a0
[  237.279487][    C1]  ? vprintk_emit+0x587/0x7a0
[  237.279509][    C1]  ? vprintk_emit+0x444/0x7a0
[  237.279529][    C1]  ? __pfx_vprintk_emit+0x10/0x10
[  237.279549][    C1]  ? __pfx_scnprintf+0x10/0x10
[  237.279569][    C1]  ? rcu_is_watching+0x15/0xb0
[  237.279590][    C1]  ? rcu_is_watching+0x15/0xb0
[  237.279611][    C1]  _printk+0xcf/0x120
[  237.279632][    C1]  ? __pfx__printk+0x10/0x10
[  237.279650][    C1]  ? kernfs_root+0x1c/0x230
[  237.279665][    C1]  ? kernfs_path_from_node+0x250/0x290
[  237.279678][    C1]  ? kernfs_path_from_node+0x2f/0x290
[  237.279693][    C1]  sysfs_create_dir_ns+0x254/0x280
[  237.279714][    C1]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.279735][    C1]  ? do_raw_spin_unlock+0x122/0x240
[  237.279752][    C1]  kobject_add_internal+0x59f/0xb40
[  237.279772][    C1]  kobject_init_and_add+0x125/0x190
[  237.279792][    C1]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.279812][    C1]  ? __raw_spin_lock_init+0x45/0x100
[  237.279829][    C1]  ? __init_swait_queue_head+0xa9/0x150
[  237.279847][    C1]  gfs2_sys_fs_add+0x234/0x450
[  237.279871][    C1]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.279898][    C1]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.279924][    C1]  gfs2_fill_super+0x13c0/0x20d0
[  237.279958][    C1]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.279977][    C1]  ? sb_set_blocksize+0x104/0x180
[  237.279996][    C1]  ? setup_bdev_super+0x4c1/0x5b0
[  237.280015][    C1]  get_tree_bdev_flags+0x40e/0x4d0
[  237.280031][    C1]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.280047][    C1]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.280068][    C1]  gfs2_get_tree+0x51/0x1e0
[  237.280084][    C1]  vfs_get_tree+0x92/0x2b0
[  237.280101][    C1]  do_new_mount+0x2a2/0xa30
[  237.280121][    C1]  ? ns_capable+0x8a/0xf0
[  237.280140][    C1]  ? __pfx_do_new_mount+0x10/0x10
[  237.280158][    C1]  ? path_mount+0x61c/0xfe0
[  237.280174][    C1]  ? user_path_at+0x44/0x60
[  237.280191][    C1]  __se_sys_mount+0x317/0x410
[  237.280210][    C1]  ? __pfx___se_sys_mount+0x10/0x10
[  237.280230][    C1]  ? rcu_is_watching+0x15/0xb0
[  237.280248][    C1]  ? __x64_sys_mount+0x20/0xc0
[  237.280266][    C1]  do_syscall_64+0xfa/0xfa0
[  237.280284][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.280298][    C1]  ? clear_bhb_loop+0x60/0xb0
[  237.280315][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.280329][    C1] RIP: 0033:0x7f2fdbf9038a
[  237.280342][    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
[  237.280354][    C1] RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.280369][    C1] RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
[  237.280380][    C1] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
[  237.280391][    C1] RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
[  237.280401][    C1] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  237.280411][    C1] R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
[  237.280428][    C1]  </TASK>
[  237.286279][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  237.286298][   T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  237.286318][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.286329][   T31] Call Trace:
[  237.286337][   T31]  <TASK>
[  237.286344][   T31]  dump_stack_lvl+0x99/0x250
[  237.286369][   T31]  ? __asan_memcpy+0x40/0x70
[  237.286387][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.286407][   T31]  ? __pfx__printk+0x10/0x10
[  237.286434][   T31]  vpanic+0x281/0x750
[  237.286454][   T31]  ? __pfx_vpanic+0x10/0x10
[  237.286473][   T31]  ? preempt_schedule+0xae/0xc0
[  237.286493][   T31]  ? preempt_schedule_common+0x83/0xd0
[  237.286514][   T31]  panic+0xb9/0xc0
[  237.286532][   T31]  ? __pfx_panic+0x10/0x10
[  237.286551][   T31]  ? preempt_schedule_thunk+0x16/0x30
[  237.286569][   T31]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  237.286595][   T31]  watchdog+0xf9f/0xfa0
[  237.286618][   T31]  ? watchdog+0x1e2/0xfa0
[  237.286639][   T31]  kthread+0x711/0x8a0
[  237.286658][   T31]  ? __pfx_watchdog+0x10/0x10
[  237.286677][   T31]  ? __pfx_kthread+0x10/0x10
[  237.286704][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  237.286724][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  237.286743][   T31]  ? __pfx_kthread+0x10/0x10
[  237.286761][   T31]  ret_from_fork+0x47c/0x820
[  237.286786][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  237.286812][   T31]  ? __switch_to_asm+0x39/0x70
[  237.286832][   T31]  ? __switch_to_asm+0x33/0x70
[  237.286853][   T31]  ? __pfx_kthread+0x10/0x10
[  237.286871][   T31]  ret_from_fork_asm+0x1a/0x30
[  237.286899][   T31]  </TASK>
[  237.290413][   T31] Kernel Offset: disabled