add+0x10/0x10
[  222.078074][ T6667]  ? __raw_spin_lock_init+0x45/0x100
[  222.078091][ T6667]  ? __init_swait_queue_head+0xa9/0x150
[  222.078109][ T6667]  gfs2_sys_fs_add+0x234/0x450
[  222.078132][ T6667]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.078156][ T6667]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.078179][ T6667]  gfs2_fill_super+0x13c0/0x20d0
[  222.078201][ T6667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.078220][ T6667]  ? sb_set_blocksize+0x104/0x180
[  222.078241][ T6667]  ? setup_bdev_super+0x4c1/0x5b0
[  222.078260][ T6667]  get_tree_bdev_flags+0x40e/0x4d0
[  222.078278][ T6667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.078294][ T6667]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.078316][ T6667]  gfs2_get_tree+0x51/0x1e0
[  222.078335][ T6667]  vfs_get_tree+0x92/0x2b0
[  222.078354][ T6667]  do_new_mount+0x2a2/0xa30
[  222.078375][ T6667]  ? ns_capable+0x8a/0xf0
[  222.078395][ T6667]  ? __pfx_do_new_mount+0x10/0x10
[  222.078414][ T6667]  ? path_mount+0x61c/0xfe0
[  222.078431][ T6667]  ? user_path_at+0x44/0x60
[  222.078449][ T6667]  __se_sys_mount+0x317/0x410
[  222.078471][ T6667]  ? __pfx___se_sys_mount+0x10/0x10
[  222.078492][ T6667]  ? rcu_is_watching+0x15/0xb0
[  222.078512][ T6667]  ? __x64_sys_mount+0x20/0xc0
[  222.078532][ T6667]  do_syscall_64+0xfa/0xfa0
[  222.078551][ T6667]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.078568][ T6667]  ? clear_bhb_loop+0x60/0xb0
[  222.078594][ T6667]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.078609][ T6667] RIP: 0033:0x7f659f59038a
[  222.078624][ T6667] 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
[  222.078638][ T6667] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.078658][ T6667] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  222.078671][ T6667] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  222.078684][ T6667] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  222.078696][ T6667] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.078706][ T6667] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  222.078725][ T6667]  </TASK>
[  222.078742][ T6667] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  222.393586][ T6667] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  222.606497][ T6670] loop1: detected capacity change from 0 to 32768
[  222.627498][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  222.640975][ T6670] CPU: 0 UID: 0 PID: 6670 Comm: syz.1.218 Not tainted syzkaller #0 PREEMPT(full) 
[  222.640999][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  222.641010][ T6670] Call Trace:
[  222.641016][ T6670]  <TASK>
[  222.641025][ T6670]  dump_stack_lvl+0x189/0x250
[  222.641049][ T6670]  ? __pfx_dump_stack_lvl+0x10/0x10
[  222.641067][ T6670]  ? __pfx__printk+0x10/0x10
[  222.641085][ T6670]  ? kernfs_root+0x1c/0x230
[  222.641101][ T6670]  ? kernfs_path_from_node+0x250/0x290
[  222.641113][ T6670]  ? kernfs_path_from_node+0x2f/0x290
[  222.641130][ T6670]  sysfs_create_dir_ns+0x259/0x280
[  222.641153][ T6670]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  222.641175][ T6670]  ? do_raw_spin_unlock+0x122/0x240
[  222.641194][ T6670]  kobject_add_internal+0x59f/0xb40
[  222.641219][ T6670]  kobject_init_and_add+0x125/0x190
[  222.641241][ T6670]  ? __pfx_kobject_init_and_add+0x10/0x10
[  222.641261][ T6670]  ? __raw_spin_lock_init+0x45/0x100
[  222.641278][ T6670]  ? __init_swait_queue_head+0xa9/0x150
[  222.641295][ T6670]  gfs2_sys_fs_add+0x234/0x450
[  222.641317][ T6670]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  222.641341][ T6670]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  222.641364][ T6670]  gfs2_fill_super+0x13c0/0x20d0
[  222.641389][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.641408][ T6670]  ? sb_set_blocksize+0x104/0x180
[  222.641429][ T6670]  ? setup_bdev_super+0x4c1/0x5b0
[  222.641449][ T6670]  get_tree_bdev_flags+0x40e/0x4d0
[  222.641467][ T6670]  ? __pfx_gfs2_fill_super+0x10/0x10
[  222.641486][ T6670]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  222.641509][ T6670]  gfs2_get_tree+0x51/0x1e0
[  222.641527][ T6670]  vfs_get_tree+0x92/0x2b0
[  222.641547][ T6670]  do_new_mount+0x2a2/0xa30
[  222.641567][ T6670]  ? ns_capable+0x8a/0xf0
[  222.641587][ T6670]  ? __pfx_do_new_mount+0x10/0x10
[  222.641614][ T6670]  ? path_mount+0x61c/0xfe0
[  222.641632][ T6670]  ? user_path_at+0x44/0x60
[  222.641651][ T6670]  __se_sys_mount+0x317/0x410
[  222.641673][ T6670]  ? __pfx___se_sys_mount+0x10/0x10
[  222.641694][ T6670]  ? rcu_is_watching+0x15/0xb0
[  222.641715][ T6670]  ? __x64_sys_mount+0x20/0xc0
[  222.641735][ T6670]  do_syscall_64+0xfa/0xfa0
[  222.641755][ T6670]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.641772][ T6670]  ? clear_bhb_loop+0x60/0xb0
[  222.641790][ T6670]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  222.641807][ T6670] RIP: 0033:0x7f659f59038a
[  222.641822][ T6670] 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
[  222.641837][ T6670] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  222.641856][ T6670] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  222.641874][ T6670] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  222.641887][ T6670] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  222.641900][ T6670] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  222.641912][ T6670] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  222.641930][ T6670]  </TASK>
[  222.641948][ T6670] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  222.956986][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.164037][ T6673] loop1: detected capacity change from 0 to 32768
[  223.175603][ T6673] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.183285][ T6673] CPU: 0 UID: 0 PID: 6673 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT(full) 
[  223.183307][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.183317][ T6673] Call Trace:
[  223.183324][ T6673]  <TASK>
[  223.183332][ T6673]  dump_stack_lvl+0x189/0x250
[  223.183356][ T6673]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.183374][ T6673]  ? __pfx__printk+0x10/0x10
[  223.183393][ T6673]  ? kernfs_root+0x1c/0x230
[  223.183410][ T6673]  ? kernfs_path_from_node+0x250/0x290
[  223.183424][ T6673]  ? kernfs_path_from_node+0x2f/0x290
[  223.183439][ T6673]  sysfs_create_dir_ns+0x259/0x280
[  223.183461][ T6673]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.183483][ T6673]  ? do_raw_spin_unlock+0x122/0x240
[  223.183501][ T6673]  kobject_add_internal+0x59f/0xb40
[  223.183523][ T6673]  kobject_init_and_add+0x125/0x190
[  223.183545][ T6673]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.183562][ T6673]  ? __raw_spin_lock_init+0x45/0x100
[  223.183578][ T6673]  ? __init_swait_queue_head+0xa9/0x150
[  223.183595][ T6673]  gfs2_sys_fs_add+0x234/0x450
[  223.183619][ T6673]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.183643][ T6673]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.183667][ T6673]  gfs2_fill_super+0x13c0/0x20d0
[  223.183690][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.183709][ T6673]  ? sb_set_blocksize+0x104/0x180
[  223.183729][ T6673]  ? setup_bdev_super+0x4c1/0x5b0
[  223.183758][ T6673]  get_tree_bdev_flags+0x40e/0x4d0
[  223.183776][ T6673]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.183792][ T6673]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.183814][ T6673]  gfs2_get_tree+0x51/0x1e0
[  223.183833][ T6673]  vfs_get_tree+0x92/0x2b0
[  223.183852][ T6673]  do_new_mount+0x2a2/0xa30
[  223.183874][ T6673]  ? ns_capable+0x8a/0xf0
[  223.183895][ T6673]  ? __pfx_do_new_mount+0x10/0x10
[  223.183913][ T6673]  ? path_mount+0x61c/0xfe0
[  223.183930][ T6673]  ? user_path_at+0x44/0x60
[  223.183948][ T6673]  __se_sys_mount+0x317/0x410
[  223.183970][ T6673]  ? __pfx___se_sys_mount+0x10/0x10
[  223.183991][ T6673]  ? rcu_is_watching+0x15/0xb0
[  223.184011][ T6673]  ? __x64_sys_mount+0x20/0xc0
[  223.184030][ T6673]  do_syscall_64+0xfa/0xfa0
[  223.184050][ T6673]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.184067][ T6673]  ? clear_bhb_loop+0x60/0xb0
[  223.184085][ T6673]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.184102][ T6673] RIP: 0033:0x7f659f59038a
[  223.184117][ T6673] 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
[  223.184131][ T6673] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.184149][ T6673] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  223.184161][ T6673] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  223.184173][ T6673] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  223.184184][ T6673] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.184194][ T6673] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  223.184212][ T6673]  </TASK>
[  223.184230][ T6673] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  223.497821][ T6673] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  223.709955][ T6676] loop1: detected capacity change from 0 to 32768
[  223.721806][ T6676] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  223.729247][ T6676] CPU: 1 UID: 0 PID: 6676 Comm: syz.1.220 Not tainted syzkaller #0 PREEMPT(full) 
[  223.729270][ T6676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  223.729281][ T6676] Call Trace:
[  223.729288][ T6676]  <TASK>
[  223.729296][ T6676]  dump_stack_lvl+0x189/0x250
[  223.729346][ T6676]  ? __pfx_dump_stack_lvl+0x10/0x10
[  223.729365][ T6676]  ? __pfx__printk+0x10/0x10
[  223.729385][ T6676]  ? kernfs_root+0x1c/0x230
[  223.729402][ T6676]  ? kernfs_path_from_node+0x250/0x290
[  223.729416][ T6676]  ? kernfs_path_from_node+0x2f/0x290
[  223.729432][ T6676]  sysfs_create_dir_ns+0x259/0x280
[  223.729454][ T6676]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  223.729476][ T6676]  ? do_raw_spin_unlock+0x122/0x240
[  223.729493][ T6676]  kobject_add_internal+0x59f/0xb40
[  223.729516][ T6676]  kobject_init_and_add+0x125/0x190
[  223.729537][ T6676]  ? __pfx_kobject_init_and_add+0x10/0x10
[  223.729557][ T6676]  ? __raw_spin_lock_init+0x45/0x100
[  223.729573][ T6676]  ? __init_swait_queue_head+0xa9/0x150
[  223.729590][ T6676]  gfs2_sys_fs_add+0x234/0x450
[  223.729612][ T6676]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  223.729635][ T6676]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  223.729658][ T6676]  gfs2_fill_super+0x13c0/0x20d0
[  223.729680][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.729699][ T6676]  ? sb_set_blocksize+0x104/0x180
[  223.729721][ T6676]  ? setup_bdev_super+0x4c1/0x5b0
[  223.729751][ T6676]  get_tree_bdev_flags+0x40e/0x4d0
[  223.729770][ T6676]  ? __pfx_gfs2_fill_super+0x10/0x10
[  223.729787][ T6676]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  223.729808][ T6676]  gfs2_get_tree+0x51/0x1e0
[  223.729827][ T6676]  vfs_get_tree+0x92/0x2b0
[  223.729845][ T6676]  do_new_mount+0x2a2/0xa30
[  223.729866][ T6676]  ? ns_capable+0x8a/0xf0
[  223.729886][ T6676]  ? __pfx_do_new_mount+0x10/0x10
[  223.729904][ T6676]  ? path_mount+0x61c/0xfe0
[  223.729922][ T6676]  ? user_path_at+0x44/0x60
[  223.729941][ T6676]  __se_sys_mount+0x317/0x410
[  223.729964][ T6676]  ? __pfx___se_sys_mount+0x10/0x10
[  223.729986][ T6676]  ? rcu_is_watching+0x15/0xb0
[  223.730007][ T6676]  ? __x64_sys_mount+0x20/0xc0
[  223.730026][ T6676]  do_syscall_64+0xfa/0xfa0
[  223.730045][ T6676]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.730063][ T6676]  ? clear_bhb_loop+0x60/0xb0
[  223.730080][ T6676]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  223.730096][ T6676] RIP: 0033:0x7f659f59038a
[  223.730111][ 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
[  223.730125][ T6676] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  223.730146][ T6676] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  223.730160][ T6676] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  223.730173][ T6676] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  223.730185][ T6676] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  223.730197][ T6676] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  223.730215][ T6676]  </TASK>
[  223.730234][ 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.
[  224.046113][ T6676] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  224.253596][ T6679] loop1: detected capacity change from 0 to 32768
[  224.263159][ T6679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  224.270819][ T6679] CPU: 0 UID: 0 PID: 6679 Comm: syz.1.221 Not tainted syzkaller #0 PREEMPT(full) 
[  224.270842][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  224.270852][ T6679] Call Trace:
[  224.270858][ T6679]  <TASK>
[  224.270866][ T6679]  dump_stack_lvl+0x189/0x250
[  224.270888][ T6679]  ? __pfx_dump_stack_lvl+0x10/0x10
[  224.270904][ T6679]  ? __pfx__printk+0x10/0x10
[  224.270921][ T6679]  ? kernfs_root+0x1c/0x230
[  224.270936][ T6679]  ? kernfs_path_from_node+0x250/0x290
[  224.270949][ T6679]  ? kernfs_path_from_node+0x2f/0x290
[  224.270961][ T6679]  sysfs_create_dir_ns+0x259/0x280
[  224.270983][ T6679]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  224.271003][ T6679]  ? do_raw_spin_unlock+0x122/0x240
[  224.271020][ T6679]  kobject_add_internal+0x59f/0xb40
[  224.271042][ T6679]  kobject_init_and_add+0x125/0x190
[  224.271061][ T6679]  ? __pfx_kobject_init_and_add+0x10/0x10
[  224.271079][ T6679]  ? __raw_spin_lock_init+0x45/0x100
[  224.271094][ T6679]  ? __init_swait_queue_head+0xa9/0x150
[  224.271110][ T6679]  gfs2_sys_fs_add+0x234/0x450
[  224.271131][ T6679]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  224.271152][ T6679]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  224.271175][ T6679]  gfs2_fill_super+0x13c0/0x20d0
[  224.271198][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.271214][ T6679]  ? sb_set_blocksize+0x104/0x180
[  224.271235][ T6679]  ? setup_bdev_super+0x4c1/0x5b0
[  224.271254][ T6679]  get_tree_bdev_flags+0x40e/0x4d0
[  224.271273][ T6679]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.271290][ T6679]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  224.271313][ T6679]  gfs2_get_tree+0x51/0x1e0
[  224.271331][ T6679]  vfs_get_tree+0x92/0x2b0
[  224.271348][ T6679]  do_new_mount+0x2a2/0xa30
[  224.271368][ T6679]  ? ns_capable+0x8a/0xf0
[  224.271387][ T6679]  ? __pfx_do_new_mount+0x10/0x10
[  224.271405][ T6679]  ? path_mount+0x61c/0xfe0
[  224.271421][ T6679]  ? user_path_at+0x44/0x60
[  224.271439][ T6679]  __se_sys_mount+0x317/0x410
[  224.271461][ T6679]  ? __pfx___se_sys_mount+0x10/0x10
[  224.271481][ T6679]  ? rcu_is_watching+0x15/0xb0
[  224.271502][ T6679]  ? __x64_sys_mount+0x20/0xc0
[  224.271533][ T6679]  do_syscall_64+0xfa/0xfa0
[  224.271552][ T6679]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.271568][ T6679]  ? clear_bhb_loop+0x60/0xb0
[  224.271584][ T6679]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.271600][ T6679] RIP: 0033:0x7f659f59038a
[  224.271617][ 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
[  224.271632][ T6679] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  224.271652][ T6679] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  224.271666][ T6679] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  224.271679][ T6679] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  224.271698][ T6679] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  224.271710][ T6679] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  224.271728][ T6679]  </TASK>
[  224.271746][ 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.
[  224.586477][ T6679] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  224.802163][ T6682] loop1: detected capacity change from 0 to 32768
[  224.823687][ T6682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  224.831252][ T6682] CPU: 0 UID: 0 PID: 6682 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT(full) 
[  224.831275][ T6682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  224.831286][ T6682] Call Trace:
[  224.831293][ T6682]  <TASK>
[  224.831301][ T6682]  dump_stack_lvl+0x189/0x250
[  224.831325][ T6682]  ? __pfx_dump_stack_lvl+0x10/0x10
[  224.831343][ T6682]  ? __pfx__printk+0x10/0x10
[  224.831361][ T6682]  ? kernfs_root+0x1c/0x230
[  224.831378][ T6682]  ? kernfs_path_from_node+0x250/0x290
[  224.831391][ T6682]  ? kernfs_path_from_node+0x2f/0x290
[  224.831405][ T6682]  sysfs_create_dir_ns+0x259/0x280
[  224.831423][ T6682]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  224.831442][ T6682]  ? do_raw_spin_unlock+0x122/0x240
[  224.831457][ T6682]  kobject_add_internal+0x59f/0xb40
[  224.831479][ T6682]  kobject_init_and_add+0x125/0x190
[  224.831498][ T6682]  ? __pfx_kobject_init_and_add+0x10/0x10
[  224.831517][ T6682]  ? __raw_spin_lock_init+0x45/0x100
[  224.831532][ T6682]  ? __init_swait_queue_head+0xa9/0x150
[  224.831550][ T6682]  gfs2_sys_fs_add+0x234/0x450
[  224.831572][ T6682]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  224.831595][ T6682]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  224.831618][ T6682]  gfs2_fill_super+0x13c0/0x20d0
[  224.831650][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.831669][ T6682]  ? sb_set_blocksize+0x104/0x180
[  224.831689][ T6682]  ? setup_bdev_super+0x4c1/0x5b0
[  224.831707][ T6682]  get_tree_bdev_flags+0x40e/0x4d0
[  224.831725][ T6682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  224.831739][ T6682]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  224.831751][ T6682]  gfs2_get_tree+0x51/0x1e0
[  224.831762][ T6682]  vfs_get_tree+0x92/0x2b0
[  224.831773][ T6682]  do_new_mount+0x2a2/0xa30
[  224.831786][ T6682]  ? ns_capable+0x8a/0xf0
[  224.831799][ T6682]  ? __pfx_do_new_mount+0x10/0x10
[  224.831810][ T6682]  ? path_mount+0x61c/0xfe0
[  224.831821][ T6682]  ? user_path_at+0x44/0x60
[  224.831831][ T6682]  __se_sys_mount+0x317/0x410
[  224.831845][ T6682]  ? __pfx___se_sys_mount+0x10/0x10
[  224.831857][ T6682]  ? rcu_is_watching+0x15/0xb0
[  224.831870][ T6682]  ? __x64_sys_mount+0x20/0xc0
[  224.831882][ T6682]  do_syscall_64+0xfa/0xfa0
[  224.831894][ T6682]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.831904][ T6682]  ? clear_bhb_loop+0x60/0xb0
[  224.831914][ T6682]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  224.831923][ T6682] RIP: 0033:0x7f659f59038a
[  224.831933][ 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
[  224.831942][ T6682] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  224.831954][ T6682] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  224.831961][ T6682] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  224.831968][ T6682] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  224.831975][ T6682] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  224.831981][ T6682] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  224.831992][ T6682]  </TASK>
[  224.832004][ 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.
[  225.150456][ T6682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  225.388602][ T6685] loop1: detected capacity change from 0 to 32768
[  225.399760][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.410075][ T6685] CPU: 0 UID: 0 PID: 6685 Comm: syz.1.223 Not tainted syzkaller #0 PREEMPT(full) 
[  225.410098][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.410109][ T6685] Call Trace:
[  225.410117][ T6685]  <TASK>
[  225.410125][ T6685]  dump_stack_lvl+0x189/0x250
[  225.410149][ T6685]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.410168][ T6685]  ? __pfx__printk+0x10/0x10
[  225.410186][ T6685]  ? kernfs_root+0x1c/0x230
[  225.410204][ T6685]  ? kernfs_path_from_node+0x250/0x290
[  225.410218][ T6685]  ? kernfs_path_from_node+0x2f/0x290
[  225.410235][ T6685]  sysfs_create_dir_ns+0x259/0x280
[  225.410262][ T6685]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.410282][ T6685]  ? do_raw_spin_unlock+0x122/0x240
[  225.410300][ T6685]  kobject_add_internal+0x59f/0xb40
[  225.410323][ T6685]  kobject_init_and_add+0x125/0x190
[  225.410343][ T6685]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.410373][ T6685]  ? __raw_spin_lock_init+0x45/0x100
[  225.410389][ T6685]  ? __init_swait_queue_head+0xa9/0x150
[  225.410406][ T6685]  gfs2_sys_fs_add+0x234/0x450
[  225.410427][ T6685]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.410450][ T6685]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.410473][ T6685]  gfs2_fill_super+0x13c0/0x20d0
[  225.410496][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.410514][ T6685]  ? sb_set_blocksize+0x104/0x180
[  225.410535][ T6685]  ? setup_bdev_super+0x4c1/0x5b0
[  225.410555][ T6685]  get_tree_bdev_flags+0x40e/0x4d0
[  225.410574][ T6685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.410592][ T6685]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.410613][ T6685]  gfs2_get_tree+0x51/0x1e0
[  225.410632][ T6685]  vfs_get_tree+0x92/0x2b0
[  225.410650][ T6685]  do_new_mount+0x2a2/0xa30
[  225.410671][ T6685]  ? ns_capable+0x8a/0xf0
[  225.410690][ T6685]  ? __pfx_do_new_mount+0x10/0x10
[  225.410708][ T6685]  ? path_mount+0x61c/0xfe0
[  225.410725][ T6685]  ? user_path_at+0x44/0x60
[  225.410743][ T6685]  __se_sys_mount+0x317/0x410
[  225.410765][ T6685]  ? __pfx___se_sys_mount+0x10/0x10
[  225.410786][ T6685]  ? rcu_is_watching+0x15/0xb0
[  225.410807][ T6685]  ? __x64_sys_mount+0x20/0xc0
[  225.410826][ T6685]  do_syscall_64+0xfa/0xfa0
[  225.410846][ T6685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.410863][ T6685]  ? clear_bhb_loop+0x60/0xb0
[  225.410879][ T6685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.410895][ T6685] RIP: 0033:0x7f659f59038a
[  225.410910][ 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
[  225.410925][ T6685] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.410946][ T6685] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  225.410960][ T6685] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  225.410973][ T6685] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  225.410986][ T6685] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.410997][ T6685] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  225.411015][ T6685]  </TASK>
[  225.710324][ 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.
[  225.724435][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  225.937414][ T6688] loop1: detected capacity change from 0 to 32768
[  225.961771][ T6688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  225.969222][ T6688] CPU: 0 UID: 0 PID: 6688 Comm: syz.1.224 Not tainted syzkaller #0 PREEMPT(full) 
[  225.969246][ T6688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  225.969257][ T6688] Call Trace:
[  225.969263][ T6688]  <TASK>
[  225.969271][ T6688]  dump_stack_lvl+0x189/0x250
[  225.969296][ T6688]  ? __pfx_dump_stack_lvl+0x10/0x10
[  225.969316][ T6688]  ? __pfx__printk+0x10/0x10
[  225.969335][ T6688]  ? kernfs_root+0x1c/0x230
[  225.969353][ T6688]  ? kernfs_path_from_node+0x250/0x290
[  225.969373][ T6688]  ? kernfs_path_from_node+0x2f/0x290
[  225.969390][ T6688]  sysfs_create_dir_ns+0x259/0x280
[  225.969413][ T6688]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  225.969437][ T6688]  ? do_raw_spin_unlock+0x122/0x240
[  225.969456][ T6688]  kobject_add_internal+0x59f/0xb40
[  225.969479][ T6688]  kobject_init_and_add+0x125/0x190
[  225.969501][ T6688]  ? __pfx_kobject_init_and_add+0x10/0x10
[  225.969521][ T6688]  ? __raw_spin_lock_init+0x45/0x100
[  225.969537][ T6688]  ? __init_swait_queue_head+0xa9/0x150
[  225.969554][ T6688]  gfs2_sys_fs_add+0x234/0x450
[  225.969578][ T6688]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  225.969603][ T6688]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  225.969626][ T6688]  gfs2_fill_super+0x13c0/0x20d0
[  225.969648][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.969667][ T6688]  ? sb_set_blocksize+0x104/0x180
[  225.969689][ T6688]  ? setup_bdev_super+0x4c1/0x5b0
[  225.969709][ T6688]  get_tree_bdev_flags+0x40e/0x4d0
[  225.969729][ T6688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  225.969746][ T6688]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  225.969769][ T6688]  gfs2_get_tree+0x51/0x1e0
[  225.969788][ T6688]  vfs_get_tree+0x92/0x2b0
[  225.969807][ T6688]  do_new_mount+0x2a2/0xa30
[  225.969827][ T6688]  ? ns_capable+0x8a/0xf0
[  225.969848][ T6688]  ? __pfx_do_new_mount+0x10/0x10
[  225.969867][ T6688]  ? path_mount+0x61c/0xfe0
[  225.969885][ T6688]  ? user_path_at+0x44/0x60
[  225.969905][ T6688]  __se_sys_mount+0x317/0x410
[  225.969927][ T6688]  ? __pfx___se_sys_mount+0x10/0x10
[  225.969947][ T6688]  ? rcu_is_watching+0x15/0xb0
[  225.969968][ T6688]  ? __x64_sys_mount+0x20/0xc0
[  225.969987][ T6688]  do_syscall_64+0xfa/0xfa0
[  225.970017][ T6688]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.970034][ T6688]  ? clear_bhb_loop+0x60/0xb0
[  225.970052][ T6688]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  225.970068][ T6688] RIP: 0033:0x7f659f59038a
[  225.970083][ 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
[  225.970097][ T6688] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  225.970117][ T6688] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  225.970130][ T6688] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  225.970143][ T6688] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  225.970156][ T6688] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  225.970168][ T6688] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  225.970188][ T6688]  </TASK>
[  225.970206][ 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.
[  226.284544][ T6688] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  226.494226][ T6691] loop1: detected capacity change from 0 to 32768
[  226.518672][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  226.526293][ T6691] CPU: 0 UID: 0 PID: 6691 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT(full) 
[  226.526317][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  226.526336][ T6691] Call Trace:
[  226.526343][ T6691]  <TASK>
[  226.526350][ T6691]  dump_stack_lvl+0x189/0x250
[  226.526375][ T6691]  ? __pfx_dump_stack_lvl+0x10/0x10
[  226.526394][ T6691]  ? __pfx__printk+0x10/0x10
[  226.526413][ T6691]  ? kernfs_root+0x1c/0x230
[  226.526430][ T6691]  ? kernfs_path_from_node+0x250/0x290
[  226.526443][ T6691]  ? kernfs_path_from_node+0x2f/0x290
[  226.526459][ T6691]  sysfs_create_dir_ns+0x259/0x280
[  226.526483][ T6691]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  226.526506][ T6691]  ? do_raw_spin_unlock+0x122/0x240
[  226.526526][ T6691]  kobject_add_internal+0x59f/0xb40
[  226.526549][ T6691]  kobject_init_and_add+0x125/0x190
[  226.526569][ T6691]  ? __pfx_kobject_init_and_add+0x10/0x10
[  226.526588][ T6691]  ? __raw_spin_lock_init+0x45/0x100
[  226.526604][ T6691]  ? __init_swait_queue_head+0xa9/0x150
[  226.526622][ T6691]  gfs2_sys_fs_add+0x234/0x450
[  226.526645][ T6691]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  226.526670][ T6691]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  226.526694][ T6691]  gfs2_fill_super+0x13c0/0x20d0
[  226.526717][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.526736][ T6691]  ? sb_set_blocksize+0x104/0x180
[  226.526758][ T6691]  ? setup_bdev_super+0x4c1/0x5b0
[  226.526779][ T6691]  get_tree_bdev_flags+0x40e/0x4d0
[  226.526798][ T6691]  ? __pfx_gfs2_fill_super+0x10/0x10
[  226.526815][ T6691]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  226.526838][ T6691]  gfs2_get_tree+0x51/0x1e0
[  226.526856][ T6691]  vfs_get_tree+0x92/0x2b0
[  226.526875][ T6691]  do_new_mount+0x2a2/0xa30
[  226.526896][ T6691]  ? ns_capable+0x8a/0xf0
[  226.526917][ T6691]  ? __pfx_do_new_mount+0x10/0x10
[  226.526936][ T6691]  ? path_mount+0x61c/0xfe0
[  226.526953][ T6691]  ? user_path_at+0x44/0x60
[  226.526972][ T6691]  __se_sys_mount+0x317/0x410
[  226.526994][ T6691]  ? __pfx___se_sys_mount+0x10/0x10
[  226.527016][ T6691]  ? rcu_is_watching+0x15/0xb0
[  226.527038][ T6691]  ? __x64_sys_mount+0x20/0xc0
[  226.527058][ T6691]  do_syscall_64+0xfa/0xfa0
[  226.527077][ T6691]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.527093][ T6691]  ? clear_bhb_loop+0x60/0xb0
[  226.527110][ T6691]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  226.527126][ T6691] RIP: 0033:0x7f659f59038a
[  226.527142][ 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
[  226.527157][ T6691] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  226.527177][ T6691] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  226.527191][ T6691] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  226.527204][ T6691] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  226.527216][ T6691] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  226.527227][ T6691] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  226.527246][ T6691]  </TASK>
[  226.527263][ 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.
[  226.841580][ T6691] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  227.049472][ T6694] loop1: detected capacity change from 0 to 32768
[  227.063907][ T6694] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  227.071712][ T6694] CPU: 0 UID: 0 PID: 6694 Comm: syz.1.226 Not tainted syzkaller #0 PREEMPT(full) 
[  227.071736][ T6694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  227.071746][ T6694] Call Trace:
[  227.071753][ T6694]  <TASK>
[  227.071761][ T6694]  dump_stack_lvl+0x189/0x250
[  227.071796][ T6694]  ? __pfx_dump_stack_lvl+0x10/0x10
[  227.071813][ T6694]  ? __pfx__printk+0x10/0x10
[  227.071830][ T6694]  ? kernfs_root+0x1c/0x230
[  227.071845][ T6694]  ? kernfs_path_from_node+0x250/0x290
[  227.071857][ T6694]  ? kernfs_path_from_node+0x2f/0x290
[  227.071872][ T6694]  sysfs_create_dir_ns+0x259/0x280
[  227.071894][ T6694]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  227.071916][ T6694]  ? do_raw_spin_unlock+0x122/0x240
[  227.071934][ T6694]  kobject_add_internal+0x59f/0xb40
[  227.071955][ T6694]  kobject_init_and_add+0x125/0x190
[  227.071976][ T6694]  ? __pfx_kobject_init_and_add+0x10/0x10
[  227.071995][ T6694]  ? __raw_spin_lock_init+0x45/0x100
[  227.072010][ T6694]  ? __init_swait_queue_head+0xa9/0x150
[  227.072028][ T6694]  gfs2_sys_fs_add+0x234/0x450
[  227.072048][ T6694]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.072070][ T6694]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.072091][ T6694]  gfs2_fill_super+0x13c0/0x20d0
[  227.072114][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.072133][ T6694]  ? sb_set_blocksize+0x104/0x180
[  227.072153][ T6694]  ? setup_bdev_super+0x4c1/0x5b0
[  227.072172][ T6694]  get_tree_bdev_flags+0x40e/0x4d0
[  227.072200][ T6694]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.072216][ T6694]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.072238][ T6694]  gfs2_get_tree+0x51/0x1e0
[  227.072255][ T6694]  vfs_get_tree+0x92/0x2b0
[  227.072273][ T6694]  do_new_mount+0x2a2/0xa30
[  227.072292][ T6694]  ? ns_capable+0x8a/0xf0
[  227.072311][ T6694]  ? __pfx_do_new_mount+0x10/0x10
[  227.072328][ T6694]  ? path_mount+0x61c/0xfe0
[  227.072345][ T6694]  ? user_path_at+0x44/0x60
[  227.072364][ T6694]  __se_sys_mount+0x317/0x410
[  227.072387][ T6694]  ? __pfx___se_sys_mount+0x10/0x10
[  227.072409][ T6694]  ? rcu_is_watching+0x15/0xb0
[  227.072429][ T6694]  ? __x64_sys_mount+0x20/0xc0
[  227.072447][ T6694]  do_syscall_64+0xfa/0xfa0
[  227.072465][ T6694]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.072482][ T6694]  ? clear_bhb_loop+0x60/0xb0
[  227.072498][ T6694]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.072515][ T6694] RIP: 0033:0x7f659f59038a
[  227.072530][ 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
[  227.072546][ T6694] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.072564][ T6694] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  227.072577][ T6694] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  227.072589][ T6694] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  227.072600][ T6694] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  227.072612][ T6694] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  227.072632][ T6694]  </TASK>
[  227.072653][ 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.
[  227.190526][ T5186] Bluetooth: hci1: command 0x0406 tx timeout
[  227.194347][ T6694] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 13:49:25 executed programs: 212
[  227.603357][ T6697] loop1: detected capacity change from 0 to 32768
[  227.613451][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  227.621457][ T6697] CPU: 0 UID: 0 PID: 6697 Comm: syz.1.227 Not tainted syzkaller #0 PREEMPT(full) 
[  227.621480][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  227.621491][ T6697] Call Trace:
[  227.621497][ T6697]  <TASK>
[  227.621504][ T6697]  dump_stack_lvl+0x189/0x250
[  227.621528][ T6697]  ? __pfx_dump_stack_lvl+0x10/0x10
[  227.621547][ T6697]  ? __pfx__printk+0x10/0x10
[  227.621566][ T6697]  ? kernfs_root+0x1c/0x230
[  227.621582][ T6697]  ? kernfs_path_from_node+0x250/0x290
[  227.621597][ T6697]  ? kernfs_path_from_node+0x2f/0x290
[  227.621612][ T6697]  sysfs_create_dir_ns+0x259/0x280
[  227.621634][ T6697]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  227.621656][ T6697]  ? do_raw_spin_unlock+0x122/0x240
[  227.621674][ T6697]  kobject_add_internal+0x59f/0xb40
[  227.621700][ T6697]  kobject_init_and_add+0x125/0x190
[  227.621720][ T6697]  ? __pfx_kobject_init_and_add+0x10/0x10
[  227.621737][ T6697]  ? __raw_spin_lock_init+0x45/0x100
[  227.621752][ T6697]  ? __init_swait_queue_head+0xa9/0x150
[  227.621770][ T6697]  gfs2_sys_fs_add+0x234/0x450
[  227.621792][ T6697]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  227.621815][ T6697]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  227.621838][ T6697]  gfs2_fill_super+0x13c0/0x20d0
[  227.621861][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.621880][ T6697]  ? sb_set_blocksize+0x104/0x180
[  227.621901][ T6697]  ? setup_bdev_super+0x4c1/0x5b0
[  227.621921][ T6697]  get_tree_bdev_flags+0x40e/0x4d0
[  227.621939][ T6697]  ? __pfx_gfs2_fill_super+0x10/0x10
[  227.621955][ T6697]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  227.621976][ T6697]  gfs2_get_tree+0x51/0x1e0
[  227.621993][ T6697]  vfs_get_tree+0x92/0x2b0
[  227.622010][ T6697]  do_new_mount+0x2a2/0xa30
[  227.622030][ T6697]  ? ns_capable+0x8a/0xf0
[  227.622049][ T6697]  ? __pfx_do_new_mount+0x10/0x10
[  227.622066][ T6697]  ? path_mount+0x61c/0xfe0
[  227.622083][ T6697]  ? user_path_at+0x44/0x60
[  227.622102][ T6697]  __se_sys_mount+0x317/0x410
[  227.622123][ T6697]  ? __pfx___se_sys_mount+0x10/0x10
[  227.622144][ T6697]  ? rcu_is_watching+0x15/0xb0
[  227.622165][ T6697]  ? __x64_sys_mount+0x20/0xc0
[  227.622185][ T6697]  do_syscall_64+0xfa/0xfa0
[  227.622204][ T6697]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.622220][ T6697]  ? clear_bhb_loop+0x60/0xb0
[  227.622238][ T6697]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  227.622263][ T6697] RIP: 0033:0x7f659f59038a
[  227.622279][ 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
[  227.622294][ T6697] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  227.622313][ T6697] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  227.622325][ T6697] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  227.622337][ T6697] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  227.622349][ T6697] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  227.622359][ T6697] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  227.622376][ T6697]  </TASK>
[  227.622955][ 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.
[  227.937084][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.152750][ T6700] loop1: detected capacity change from 0 to 32768
[  228.166979][ T6700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.174697][ T6700] CPU: 0 UID: 0 PID: 6700 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT(full) 
[  228.174721][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.174732][ T6700] Call Trace:
[  228.174739][ T6700]  <TASK>
[  228.174746][ T6700]  dump_stack_lvl+0x189/0x250
[  228.174770][ T6700]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.174788][ T6700]  ? __pfx__printk+0x10/0x10
[  228.174807][ T6700]  ? kernfs_root+0x1c/0x230
[  228.174824][ T6700]  ? kernfs_path_from_node+0x250/0x290
[  228.174839][ T6700]  ? kernfs_path_from_node+0x2f/0x290
[  228.174856][ T6700]  sysfs_create_dir_ns+0x259/0x280
[  228.174880][ T6700]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.174901][ T6700]  ? do_raw_spin_unlock+0x122/0x240
[  228.174919][ T6700]  kobject_add_internal+0x59f/0xb40
[  228.174942][ T6700]  kobject_init_and_add+0x125/0x190
[  228.174963][ T6700]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.174983][ T6700]  ? __raw_spin_lock_init+0x45/0x100
[  228.174999][ T6700]  ? __init_swait_queue_head+0xa9/0x150
[  228.175016][ T6700]  gfs2_sys_fs_add+0x234/0x450
[  228.175038][ T6700]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.175063][ T6700]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.175086][ T6700]  gfs2_fill_super+0x13c0/0x20d0
[  228.175110][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.175129][ T6700]  ? sb_set_blocksize+0x104/0x180
[  228.175150][ T6700]  ? setup_bdev_super+0x4c1/0x5b0
[  228.175169][ T6700]  get_tree_bdev_flags+0x40e/0x4d0
[  228.175187][ T6700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.175204][ T6700]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.175226][ T6700]  gfs2_get_tree+0x51/0x1e0
[  228.175244][ T6700]  vfs_get_tree+0x92/0x2b0
[  228.175262][ T6700]  do_new_mount+0x2a2/0xa30
[  228.175284][ T6700]  ? ns_capable+0x8a/0xf0
[  228.175305][ T6700]  ? __pfx_do_new_mount+0x10/0x10
[  228.175324][ T6700]  ? path_mount+0x61c/0xfe0
[  228.175341][ T6700]  ? user_path_at+0x44/0x60
[  228.175359][ T6700]  __se_sys_mount+0x317/0x410
[  228.175380][ T6700]  ? __pfx___se_sys_mount+0x10/0x10
[  228.175400][ T6700]  ? rcu_is_watching+0x15/0xb0
[  228.175420][ T6700]  ? __x64_sys_mount+0x20/0xc0
[  228.175448][ T6700]  do_syscall_64+0xfa/0xfa0
[  228.175468][ T6700]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.175484][ T6700]  ? clear_bhb_loop+0x60/0xb0
[  228.175501][ T6700]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.175517][ T6700] RIP: 0033:0x7f659f59038a
[  228.175533][ 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
[  228.175547][ T6700] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.175567][ T6700] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  228.175580][ T6700] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  228.175591][ T6700] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  228.175602][ T6700] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  228.175613][ T6700] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  228.175628][ T6700]  </TASK>
[  228.175645][ 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.
[  228.488798][ T6700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  228.697851][ T6703] loop1: detected capacity change from 0 to 32768
[  228.713191][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  228.720673][ T6703] CPU: 0 UID: 0 PID: 6703 Comm: syz.1.229 Not tainted syzkaller #0 PREEMPT(full) 
[  228.720697][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  228.720709][ T6703] Call Trace:
[  228.720716][ T6703]  <TASK>
[  228.720723][ T6703]  dump_stack_lvl+0x189/0x250
[  228.720750][ T6703]  ? __pfx_dump_stack_lvl+0x10/0x10
[  228.720769][ T6703]  ? __pfx__printk+0x10/0x10
[  228.720788][ T6703]  ? kernfs_root+0x1c/0x230
[  228.720806][ T6703]  ? kernfs_path_from_node+0x250/0x290
[  228.720821][ T6703]  ? kernfs_path_from_node+0x2f/0x290
[  228.720837][ T6703]  sysfs_create_dir_ns+0x259/0x280
[  228.720861][ T6703]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  228.720883][ T6703]  ? do_raw_spin_unlock+0x122/0x240
[  228.720902][ T6703]  kobject_add_internal+0x59f/0xb40
[  228.720926][ T6703]  kobject_init_and_add+0x125/0x190
[  228.720948][ T6703]  ? __pfx_kobject_init_and_add+0x10/0x10
[  228.720968][ T6703]  ? __raw_spin_lock_init+0x45/0x100
[  228.720985][ T6703]  ? __init_swait_queue_head+0xa9/0x150
[  228.721003][ T6703]  gfs2_sys_fs_add+0x234/0x450
[  228.721025][ T6703]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  228.721049][ T6703]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  228.721072][ T6703]  gfs2_fill_super+0x13c0/0x20d0
[  228.721096][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.721116][ T6703]  ? sb_set_blocksize+0x104/0x180
[  228.721138][ T6703]  ? setup_bdev_super+0x4c1/0x5b0
[  228.721165][ T6703]  get_tree_bdev_flags+0x40e/0x4d0
[  228.721184][ T6703]  ? __pfx_gfs2_fill_super+0x10/0x10
[  228.721201][ T6703]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  228.721224][ T6703]  gfs2_get_tree+0x51/0x1e0
[  228.721243][ T6703]  vfs_get_tree+0x92/0x2b0
[  228.721262][ T6703]  do_new_mount+0x2a2/0xa30
[  228.721284][ T6703]  ? ns_capable+0x8a/0xf0
[  228.721305][ T6703]  ? __pfx_do_new_mount+0x10/0x10
[  228.721324][ T6703]  ? path_mount+0x61c/0xfe0
[  228.721341][ T6703]  ? user_path_at+0x44/0x60
[  228.721360][ T6703]  __se_sys_mount+0x317/0x410
[  228.721383][ T6703]  ? __pfx___se_sys_mount+0x10/0x10
[  228.721404][ T6703]  ? rcu_is_watching+0x15/0xb0
[  228.721425][ T6703]  ? __x64_sys_mount+0x20/0xc0
[  228.721445][ T6703]  do_syscall_64+0xfa/0xfa0
[  228.721464][ T6703]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.721481][ T6703]  ? clear_bhb_loop+0x60/0xb0
[  228.721499][ T6703]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  228.721516][ T6703] RIP: 0033:0x7f659f59038a
[  228.721532][ 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
[  228.721546][ T6703] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  228.721565][ T6703] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  228.721579][ T6703] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  228.721592][ T6703] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  228.721604][ T6703] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  228.721616][ T6703] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  228.721635][ T6703]  </TASK>
[  228.721653][ 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.
[  229.035814][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.245716][ T6706] loop1: detected capacity change from 0 to 32768
[  229.259785][ T6706] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.267893][ T6706] CPU: 0 UID: 0 PID: 6706 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT(full) 
[  229.267916][ T6706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.267926][ T6706] Call Trace:
[  229.267932][ T6706]  <TASK>
[  229.267940][ T6706]  dump_stack_lvl+0x189/0x250
[  229.267965][ T6706]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.267982][ T6706]  ? __pfx__printk+0x10/0x10
[  229.268001][ T6706]  ? kernfs_root+0x1c/0x230
[  229.268018][ T6706]  ? kernfs_path_from_node+0x250/0x290
[  229.268031][ T6706]  ? kernfs_path_from_node+0x2f/0x290
[  229.268046][ T6706]  sysfs_create_dir_ns+0x259/0x280
[  229.268069][ T6706]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.268089][ T6706]  ? do_raw_spin_unlock+0x122/0x240
[  229.268105][ T6706]  kobject_add_internal+0x59f/0xb40
[  229.268129][ T6706]  kobject_init_and_add+0x125/0x190
[  229.268150][ T6706]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.268170][ T6706]  ? __raw_spin_lock_init+0x45/0x100
[  229.268185][ T6706]  ? __init_swait_queue_head+0xa9/0x150
[  229.268201][ T6706]  gfs2_sys_fs_add+0x234/0x450
[  229.268223][ T6706]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.268248][ T6706]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.268272][ T6706]  gfs2_fill_super+0x13c0/0x20d0
[  229.268296][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.268314][ T6706]  ? sb_set_blocksize+0x104/0x180
[  229.268335][ T6706]  ? setup_bdev_super+0x4c1/0x5b0
[  229.268363][ T6706]  get_tree_bdev_flags+0x40e/0x4d0
[  229.268381][ T6706]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.268397][ T6706]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.268419][ T6706]  gfs2_get_tree+0x51/0x1e0
[  229.268437][ T6706]  vfs_get_tree+0x92/0x2b0
[  229.268456][ T6706]  do_new_mount+0x2a2/0xa30
[  229.268476][ T6706]  ? ns_capable+0x8a/0xf0
[  229.268497][ T6706]  ? __pfx_do_new_mount+0x10/0x10
[  229.268516][ T6706]  ? path_mount+0x61c/0xfe0
[  229.268534][ T6706]  ? user_path_at+0x44/0x60
[  229.268551][ T6706]  __se_sys_mount+0x317/0x410
[  229.268572][ T6706]  ? __pfx___se_sys_mount+0x10/0x10
[  229.268594][ T6706]  ? rcu_is_watching+0x15/0xb0
[  229.268615][ T6706]  ? __x64_sys_mount+0x20/0xc0
[  229.268636][ T6706]  do_syscall_64+0xfa/0xfa0
[  229.268656][ T6706]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.268672][ T6706]  ? clear_bhb_loop+0x60/0xb0
[  229.268689][ T6706]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.268705][ T6706] RIP: 0033:0x7f659f59038a
[  229.268720][ 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
[  229.268734][ T6706] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.268752][ T6706] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  229.268765][ T6706] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  229.268777][ T6706] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  229.268790][ T6706] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.268801][ T6706] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  229.268820][ T6706]  </TASK>
[  229.268839][ 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.
[  229.582689][ T6706] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  229.793321][ T6709] loop1: detected capacity change from 0 to 32768
[  229.802371][ T6709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  229.809787][ T6709] CPU: 0 UID: 0 PID: 6709 Comm: syz.1.231 Not tainted syzkaller #0 PREEMPT(full) 
[  229.809808][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  229.809818][ T6709] Call Trace:
[  229.809825][ T6709]  <TASK>
[  229.809831][ T6709]  dump_stack_lvl+0x189/0x250
[  229.809854][ T6709]  ? __pfx_dump_stack_lvl+0x10/0x10
[  229.809871][ T6709]  ? __pfx__printk+0x10/0x10
[  229.809889][ T6709]  ? kernfs_root+0x1c/0x230
[  229.809905][ T6709]  ? kernfs_path_from_node+0x250/0x290
[  229.809917][ T6709]  ? kernfs_path_from_node+0x2f/0x290
[  229.809933][ T6709]  sysfs_create_dir_ns+0x259/0x280
[  229.809955][ T6709]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  229.809974][ T6709]  ? do_raw_spin_unlock+0x122/0x240
[  229.809990][ T6709]  kobject_add_internal+0x59f/0xb40
[  229.810012][ T6709]  kobject_init_and_add+0x125/0x190
[  229.810038][ T6709]  ? __pfx_kobject_init_and_add+0x10/0x10
[  229.810054][ T6709]  ? __raw_spin_lock_init+0x45/0x100
[  229.810068][ T6709]  ? __init_swait_queue_head+0xa9/0x150
[  229.810082][ T6709]  gfs2_sys_fs_add+0x234/0x450
[  229.810100][ T6709]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  229.810119][ T6709]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  229.810137][ T6709]  gfs2_fill_super+0x13c0/0x20d0
[  229.810157][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.810172][ T6709]  ? sb_set_blocksize+0x104/0x180
[  229.810189][ T6709]  ? setup_bdev_super+0x4c1/0x5b0
[  229.810205][ T6709]  get_tree_bdev_flags+0x40e/0x4d0
[  229.810220][ T6709]  ? __pfx_gfs2_fill_super+0x10/0x10
[  229.810234][ T6709]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  229.810255][ T6709]  gfs2_get_tree+0x51/0x1e0
[  229.810270][ T6709]  vfs_get_tree+0x92/0x2b0
[  229.810287][ T6709]  do_new_mount+0x2a2/0xa30
[  229.810306][ T6709]  ? ns_capable+0x8a/0xf0
[  229.810324][ T6709]  ? __pfx_do_new_mount+0x10/0x10
[  229.810339][ T6709]  ? path_mount+0x61c/0xfe0
[  229.810361][ T6709]  ? user_path_at+0x44/0x60
[  229.810376][ T6709]  __se_sys_mount+0x317/0x410
[  229.810394][ T6709]  ? __pfx___se_sys_mount+0x10/0x10
[  229.810411][ T6709]  ? rcu_is_watching+0x15/0xb0
[  229.810428][ T6709]  ? __x64_sys_mount+0x20/0xc0
[  229.810444][ T6709]  do_syscall_64+0xfa/0xfa0
[  229.810460][ T6709]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.810473][ T6709]  ? clear_bhb_loop+0x60/0xb0
[  229.810487][ T6709]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  229.810501][ T6709] RIP: 0033:0x7f659f59038a
[  229.810514][ 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
[  229.810525][ T6709] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  229.810541][ T6709] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  229.810552][ T6709] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  229.810562][ T6709] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  229.810572][ T6709] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  229.810581][ T6709] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  229.810596][ T6709]  </TASK>
[  230.110493][ 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.
[  230.124570][ T6709] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.339997][ T6712] loop1: detected capacity change from 0 to 32768
[  230.364932][ T6712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.372433][ T6712] CPU: 0 UID: 0 PID: 6712 Comm: syz.1.232 Not tainted syzkaller #0 PREEMPT(full) 
[  230.372459][ T6712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.372471][ T6712] Call Trace:
[  230.372478][ T6712]  <TASK>
[  230.372485][ T6712]  dump_stack_lvl+0x189/0x250
[  230.372512][ T6712]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.372531][ T6712]  ? __pfx__printk+0x10/0x10
[  230.372551][ T6712]  ? kernfs_root+0x1c/0x230
[  230.372568][ T6712]  ? kernfs_path_from_node+0x250/0x290
[  230.372583][ T6712]  ? kernfs_path_from_node+0x2f/0x290
[  230.372600][ T6712]  sysfs_create_dir_ns+0x259/0x280
[  230.372624][ T6712]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.372646][ T6712]  ? do_raw_spin_unlock+0x122/0x240
[  230.372665][ T6712]  kobject_add_internal+0x59f/0xb40
[  230.372690][ T6712]  kobject_init_and_add+0x125/0x190
[  230.372712][ T6712]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.372732][ T6712]  ? __raw_spin_lock_init+0x45/0x100
[  230.372749][ T6712]  ? __init_swait_queue_head+0xa9/0x150
[  230.372767][ T6712]  gfs2_sys_fs_add+0x234/0x450
[  230.372789][ T6712]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.372812][ T6712]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.372835][ T6712]  gfs2_fill_super+0x13c0/0x20d0
[  230.372860][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.372880][ T6712]  ? sb_set_blocksize+0x104/0x180
[  230.372900][ T6712]  ? setup_bdev_super+0x4c1/0x5b0
[  230.372920][ T6712]  get_tree_bdev_flags+0x40e/0x4d0
[  230.372939][ T6712]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.372957][ T6712]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.372980][ T6712]  gfs2_get_tree+0x51/0x1e0
[  230.372999][ T6712]  vfs_get_tree+0x92/0x2b0
[  230.373018][ T6712]  do_new_mount+0x2a2/0xa30
[  230.373039][ T6712]  ? ns_capable+0x8a/0xf0
[  230.373060][ T6712]  ? __pfx_do_new_mount+0x10/0x10
[  230.373078][ T6712]  ? path_mount+0x61c/0xfe0
[  230.373096][ T6712]  ? user_path_at+0x44/0x60
[  230.373115][ T6712]  __se_sys_mount+0x317/0x410
[  230.373138][ T6712]  ? __pfx___se_sys_mount+0x10/0x10
[  230.373159][ T6712]  ? rcu_is_watching+0x15/0xb0
[  230.373180][ T6712]  ? __x64_sys_mount+0x20/0xc0
[  230.373200][ T6712]  do_syscall_64+0xfa/0xfa0
[  230.373219][ T6712]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.373236][ T6712]  ? clear_bhb_loop+0x60/0xb0
[  230.373255][ T6712]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.373279][ T6712] RIP: 0033:0x7f659f59038a
[  230.373296][ 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
[  230.373308][ T6712] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.373324][ T6712] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  230.373337][ T6712] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  230.373349][ T6712] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  230.373360][ T6712] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  230.373371][ T6712] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  230.373388][ T6712]  </TASK>
[  230.373405][ 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.
[  230.688261][ T6712] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  230.904518][ T6715] loop1: detected capacity change from 0 to 32768
[  230.914680][ T6715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  230.922148][ T6715] CPU: 0 UID: 0 PID: 6715 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT(full) 
[  230.922173][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  230.922185][ T6715] Call Trace:
[  230.922192][ T6715]  <TASK>
[  230.922199][ T6715]  dump_stack_lvl+0x189/0x250
[  230.922225][ T6715]  ? __pfx_dump_stack_lvl+0x10/0x10
[  230.922242][ T6715]  ? __pfx__printk+0x10/0x10
[  230.922260][ T6715]  ? kernfs_root+0x1c/0x230
[  230.922276][ T6715]  ? kernfs_path_from_node+0x250/0x290
[  230.922288][ T6715]  ? kernfs_path_from_node+0x2f/0x290
[  230.922303][ T6715]  sysfs_create_dir_ns+0x259/0x280
[  230.922326][ T6715]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  230.922345][ T6715]  ? do_raw_spin_unlock+0x122/0x240
[  230.922363][ T6715]  kobject_add_internal+0x59f/0xb40
[  230.922388][ T6715]  kobject_init_and_add+0x125/0x190
[  230.922408][ T6715]  ? __pfx_kobject_init_and_add+0x10/0x10
[  230.922427][ T6715]  ? __raw_spin_lock_init+0x45/0x100
[  230.922443][ T6715]  ? __init_swait_queue_head+0xa9/0x150
[  230.922459][ T6715]  gfs2_sys_fs_add+0x234/0x450
[  230.922480][ T6715]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  230.922503][ T6715]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  230.922524][ T6715]  gfs2_fill_super+0x13c0/0x20d0
[  230.922547][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.922566][ T6715]  ? sb_set_blocksize+0x104/0x180
[  230.922587][ T6715]  ? setup_bdev_super+0x4c1/0x5b0
[  230.922607][ T6715]  get_tree_bdev_flags+0x40e/0x4d0
[  230.922626][ T6715]  ? __pfx_gfs2_fill_super+0x10/0x10
[  230.922642][ T6715]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  230.922663][ T6715]  gfs2_get_tree+0x51/0x1e0
[  230.922679][ T6715]  vfs_get_tree+0x92/0x2b0
[  230.922695][ T6715]  do_new_mount+0x2a2/0xa30
[  230.922715][ T6715]  ? ns_capable+0x8a/0xf0
[  230.922735][ T6715]  ? __pfx_do_new_mount+0x10/0x10
[  230.922798][ T6715]  ? path_mount+0x61c/0xfe0
[  230.922815][ T6715]  ? user_path_at+0x44/0x60
[  230.922834][ T6715]  __se_sys_mount+0x317/0x410
[  230.922855][ T6715]  ? __pfx___se_sys_mount+0x10/0x10
[  230.922875][ T6715]  ? rcu_is_watching+0x15/0xb0
[  230.922895][ T6715]  ? __x64_sys_mount+0x20/0xc0
[  230.922915][ T6715]  do_syscall_64+0xfa/0xfa0
[  230.922934][ T6715]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.922949][ T6715]  ? clear_bhb_loop+0x60/0xb0
[  230.922966][ T6715]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  230.922982][ T6715] RIP: 0033:0x7f659f59038a
[  230.923006][ 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
[  230.923022][ T6715] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  230.923043][ T6715] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  230.923056][ T6715] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  230.923067][ T6715] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  230.923079][ T6715] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  230.923090][ T6715] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  230.923107][ T6715]  </TASK>
[  230.923176][ 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.
[  231.236603][ T6715] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  231.447498][ T6718] loop1: detected capacity change from 0 to 32768
[  231.469066][ T6718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  231.476632][ T6718] CPU: 1 UID: 0 PID: 6718 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  231.476656][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  231.476667][ T6718] Call Trace:
[  231.476674][ T6718]  <TASK>
[  231.476680][ T6718]  dump_stack_lvl+0x189/0x250
[  231.476705][ T6718]  ? __pfx_dump_stack_lvl+0x10/0x10
[  231.476722][ T6718]  ? __pfx__printk+0x10/0x10
[  231.476741][ T6718]  ? kernfs_root+0x1c/0x230
[  231.476758][ T6718]  ? kernfs_path_from_node+0x250/0x290
[  231.476772][ T6718]  ? kernfs_path_from_node+0x2f/0x290
[  231.476787][ T6718]  sysfs_create_dir_ns+0x259/0x280
[  231.476809][ T6718]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  231.476830][ T6718]  ? do_raw_spin_unlock+0x122/0x240
[  231.476850][ T6718]  kobject_add_internal+0x59f/0xb40
[  231.476874][ T6718]  kobject_init_and_add+0x125/0x190
[  231.476894][ T6718]  ? __pfx_kobject_init_and_add+0x10/0x10
[  231.476912][ T6718]  ? __raw_spin_lock_init+0x45/0x100
[  231.476927][ T6718]  ? __init_swait_queue_head+0xa9/0x150
[  231.476945][ T6718]  gfs2_sys_fs_add+0x234/0x450
[  231.476967][ T6718]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  231.476992][ T6718]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  231.477015][ T6718]  gfs2_fill_super+0x13c0/0x20d0
[  231.477038][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.477057][ T6718]  ? sb_set_blocksize+0x104/0x180
[  231.477078][ T6718]  ? setup_bdev_super+0x4c1/0x5b0
[  231.477096][ T6718]  get_tree_bdev_flags+0x40e/0x4d0
[  231.477115][ T6718]  ? __pfx_gfs2_fill_super+0x10/0x10
[  231.477131][ T6718]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  231.477153][ T6718]  gfs2_get_tree+0x51/0x1e0
[  231.477180][ T6718]  vfs_get_tree+0x92/0x2b0
[  231.477199][ T6718]  do_new_mount+0x2a2/0xa30
[  231.477220][ T6718]  ? ns_capable+0x8a/0xf0
[  231.477241][ T6718]  ? __pfx_do_new_mount+0x10/0x10
[  231.477259][ T6718]  ? path_mount+0x61c/0xfe0
[  231.477276][ T6718]  ? user_path_at+0x44/0x60
[  231.477296][ T6718]  __se_sys_mount+0x317/0x410
[  231.477316][ T6718]  ? __pfx___se_sys_mount+0x10/0x10
[  231.477337][ T6718]  ? rcu_is_watching+0x15/0xb0
[  231.477358][ T6718]  ? __x64_sys_mount+0x20/0xc0
[  231.477379][ T6718]  do_syscall_64+0xfa/0xfa0
[  231.477399][ T6718]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.477415][ T6718]  ? clear_bhb_loop+0x60/0xb0
[  231.477433][ T6718]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  231.477449][ T6718] RIP: 0033:0x7f659f59038a
[  231.477464][ 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
[  231.477478][ T6718] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  231.477497][ T6718] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  231.477509][ T6718] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  231.477521][ T6718] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  231.477534][ T6718] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  231.477544][ T6718] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  231.477562][ T6718]  </TASK>
[  231.477580][ 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.
[  231.793521][ T6718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  232.004013][ T6721] loop1: detected capacity change from 0 to 32768
[  232.014973][ T6721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.022653][ T6721] CPU: 1 UID: 0 PID: 6721 Comm: syz.1.235 Not tainted syzkaller #0 PREEMPT(full) 
[  232.022676][ T6721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.022687][ T6721] Call Trace:
[  232.022694][ T6721]  <TASK>
[  232.022701][ T6721]  dump_stack_lvl+0x189/0x250
[  232.022725][ T6721]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.022743][ T6721]  ? __pfx__printk+0x10/0x10
[  232.022762][ T6721]  ? kernfs_root+0x1c/0x230
[  232.022780][ T6721]  ? kernfs_path_from_node+0x250/0x290
[  232.022795][ T6721]  ? kernfs_path_from_node+0x2f/0x290
[  232.022811][ T6721]  sysfs_create_dir_ns+0x259/0x280
[  232.022835][ T6721]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.022870][ T6721]  ? do_raw_spin_unlock+0x122/0x240
[  232.022888][ T6721]  kobject_add_internal+0x59f/0xb40
[  232.022912][ T6721]  kobject_init_and_add+0x125/0x190
[  232.022933][ T6721]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.022952][ T6721]  ? __raw_spin_lock_init+0x45/0x100
[  232.022968][ T6721]  ? __init_swait_queue_head+0xa9/0x150
[  232.022985][ T6721]  gfs2_sys_fs_add+0x234/0x450
[  232.023008][ T6721]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.023031][ T6721]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.023054][ T6721]  gfs2_fill_super+0x13c0/0x20d0
[  232.023078][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.023095][ T6721]  ? sb_set_blocksize+0x104/0x180
[  232.023115][ T6721]  ? setup_bdev_super+0x4c1/0x5b0
[  232.023135][ T6721]  get_tree_bdev_flags+0x40e/0x4d0
[  232.023153][ T6721]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.023172][ T6721]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.023195][ T6721]  gfs2_get_tree+0x51/0x1e0
[  232.023213][ T6721]  vfs_get_tree+0x92/0x2b0
[  232.023231][ T6721]  do_new_mount+0x2a2/0xa30
[  232.023247][ T6721]  ? ns_capable+0x8a/0xf0
[  232.023264][ T6721]  ? __pfx_do_new_mount+0x10/0x10
[  232.023281][ T6721]  ? path_mount+0x61c/0xfe0
[  232.023296][ T6721]  ? user_path_at+0x44/0x60
[  232.023314][ T6721]  __se_sys_mount+0x317/0x410
[  232.023335][ T6721]  ? __pfx___se_sys_mount+0x10/0x10
[  232.023355][ T6721]  ? rcu_is_watching+0x15/0xb0
[  232.023375][ T6721]  ? __x64_sys_mount+0x20/0xc0
[  232.023395][ T6721]  do_syscall_64+0xfa/0xfa0
[  232.023414][ T6721]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.023430][ T6721]  ? clear_bhb_loop+0x60/0xb0
[  232.023448][ T6721]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.023463][ T6721] RIP: 0033:0x7f659f59038a
[  232.023479][ 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
[  232.023494][ T6721] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.023513][ T6721] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  232.023526][ T6721] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  232.023537][ T6721] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  232.023549][ T6721] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  232.023560][ T6721] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  232.023580][ T6721]  </TASK>
[  232.023599][ 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.
[  232.338287][ T6721] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  232.560184][ T6724] loop1: detected capacity change from 0 to 32768
[  232.570501][ T6724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  232.577908][ T6724] CPU: 0 UID: 0 PID: 6724 Comm: syz.1.236 Not tainted syzkaller #0 PREEMPT(full) 
[  232.577932][ T6724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  232.577943][ T6724] Call Trace:
[  232.577949][ T6724]  <TASK>
[  232.577955][ T6724]  dump_stack_lvl+0x189/0x250
[  232.577977][ T6724]  ? __pfx_dump_stack_lvl+0x10/0x10
[  232.577992][ T6724]  ? __pfx__printk+0x10/0x10
[  232.578009][ T6724]  ? kernfs_root+0x1c/0x230
[  232.578024][ T6724]  ? kernfs_path_from_node+0x250/0x290
[  232.578036][ T6724]  ? kernfs_path_from_node+0x2f/0x290
[  232.578051][ T6724]  sysfs_create_dir_ns+0x259/0x280
[  232.578074][ T6724]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  232.578096][ T6724]  ? do_raw_spin_unlock+0x122/0x240
[  232.578113][ T6724]  kobject_add_internal+0x59f/0xb40
[  232.578138][ T6724]  kobject_init_and_add+0x125/0x190
[  232.578160][ T6724]  ? __pfx_kobject_init_and_add+0x10/0x10
[  232.578180][ T6724]  ? __raw_spin_lock_init+0x45/0x100
[  232.578197][ T6724]  ? __init_swait_queue_head+0xa9/0x150
[  232.578216][ T6724]  gfs2_sys_fs_add+0x234/0x450
[  232.578239][ T6724]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  232.578263][ T6724]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  232.578287][ T6724]  gfs2_fill_super+0x13c0/0x20d0
[  232.578310][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.578330][ T6724]  ? sb_set_blocksize+0x104/0x180
[  232.578351][ T6724]  ? setup_bdev_super+0x4c1/0x5b0
[  232.578370][ T6724]  get_tree_bdev_flags+0x40e/0x4d0
[  232.578388][ T6724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  232.578405][ T6724]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  232.578427][ T6724]  gfs2_get_tree+0x51/0x1e0
[  232.578445][ T6724]  vfs_get_tree+0x92/0x2b0
[  232.578462][ T6724]  do_new_mount+0x2a2/0xa30
[  232.578483][ T6724]  ? ns_capable+0x8a/0xf0
[  232.578503][ T6724]  ? __pfx_do_new_mount+0x10/0x10
[  232.578522][ T6724]  ? path_mount+0x61c/0xfe0
[  232.578540][ T6724]  ? user_path_at+0x44/0x60
[  232.578559][ T6724]  __se_sys_mount+0x317/0x410
[  232.578581][ T6724]  ? __pfx___se_sys_mount+0x10/0x10
[  232.578601][ T6724]  ? rcu_is_watching+0x15/0xb0
[  232.578622][ T6724]  ? __x64_sys_mount+0x20/0xc0
[  232.578642][ T6724]  do_syscall_64+0xfa/0xfa0
[  232.578661][ T6724]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.578678][ T6724]  ? clear_bhb_loop+0x60/0xb0
[  232.578695][ T6724]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  232.578709][ T6724] RIP: 0033:0x7f659f59038a
[  232.578723][ 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
[  232.578735][ T6724] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  232.578753][ T6724] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  232.578765][ T6724] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  232.578776][ T6724] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  232.578787][ T6724] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  232.578805][ T6724] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  232.578824][ T6724]  </TASK>
[  232.579513][ 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.
[  232.901078][ T6724] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 13:49:30 executed programs: 222
[  233.111987][ T6727] loop1: detected capacity change from 0 to 32768
[  233.123904][ T6727] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.131493][ T6727] CPU: 0 UID: 0 PID: 6727 Comm: syz.1.237 Not tainted syzkaller #0 PREEMPT(full) 
[  233.131516][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.131528][ T6727] Call Trace:
[  233.131535][ T6727]  <TASK>
[  233.131542][ T6727]  dump_stack_lvl+0x189/0x250
[  233.131566][ T6727]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.131590][ T6727]  ? __pfx__printk+0x10/0x10
[  233.131607][ T6727]  ? kernfs_root+0x1c/0x230
[  233.131623][ T6727]  ? kernfs_path_from_node+0x250/0x290
[  233.131637][ T6727]  ? kernfs_path_from_node+0x2f/0x290
[  233.131651][ T6727]  sysfs_create_dir_ns+0x259/0x280
[  233.131672][ T6727]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.131692][ T6727]  ? do_raw_spin_unlock+0x122/0x240
[  233.131710][ T6727]  kobject_add_internal+0x59f/0xb40
[  233.131732][ T6727]  kobject_init_and_add+0x125/0x190
[  233.131760][ T6727]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.131778][ T6727]  ? __raw_spin_lock_init+0x45/0x100
[  233.131794][ T6727]  ? __init_swait_queue_head+0xa9/0x150
[  233.131810][ T6727]  gfs2_sys_fs_add+0x234/0x450
[  233.131831][ T6727]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.131855][ T6727]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.131875][ T6727]  gfs2_fill_super+0x13c0/0x20d0
[  233.131897][ T6727]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.131916][ T6727]  ? sb_set_blocksize+0x104/0x180
[  233.131938][ T6727]  ? setup_bdev_super+0x4c1/0x5b0
[  233.131958][ T6727]  get_tree_bdev_flags+0x40e/0x4d0
[  233.131976][ T6727]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.131993][ T6727]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.132013][ T6727]  gfs2_get_tree+0x51/0x1e0
[  233.132030][ T6727]  vfs_get_tree+0x92/0x2b0
[  233.132049][ T6727]  do_new_mount+0x2a2/0xa30
[  233.132068][ T6727]  ? ns_capable+0x8a/0xf0
[  233.132088][ T6727]  ? __pfx_do_new_mount+0x10/0x10
[  233.132104][ T6727]  ? path_mount+0x61c/0xfe0
[  233.132120][ T6727]  ? user_path_at+0x44/0x60
[  233.132137][ T6727]  __se_sys_mount+0x317/0x410
[  233.132160][ T6727]  ? __pfx___se_sys_mount+0x10/0x10
[  233.132180][ T6727]  ? rcu_is_watching+0x15/0xb0
[  233.132201][ T6727]  ? __x64_sys_mount+0x20/0xc0
[  233.132220][ T6727]  do_syscall_64+0xfa/0xfa0
[  233.132239][ T6727]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.132267][ T6727]  ? clear_bhb_loop+0x60/0xb0
[  233.132284][ T6727]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.132299][ T6727] RIP: 0033:0x7f659f59038a
[  233.132315][ 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
[  233.132329][ T6727] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.132350][ T6727] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  233.132364][ T6727] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  233.132377][ T6727] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  233.132389][ T6727] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  233.132400][ T6727] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  233.132418][ T6727]  </TASK>
[  233.132441][ 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.
[  233.446449][ T6727] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  233.660037][ T6730] loop1: detected capacity change from 0 to 32768
[  233.674733][ T6730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  233.682474][ T6730] CPU: 0 UID: 0 PID: 6730 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  233.682499][ T6730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  233.682511][ T6730] Call Trace:
[  233.682518][ T6730]  <TASK>
[  233.682526][ T6730]  dump_stack_lvl+0x189/0x250
[  233.682551][ T6730]  ? __pfx_dump_stack_lvl+0x10/0x10
[  233.682569][ T6730]  ? __pfx__printk+0x10/0x10
[  233.682589][ T6730]  ? kernfs_root+0x1c/0x230
[  233.682607][ T6730]  ? kernfs_path_from_node+0x250/0x290
[  233.682622][ T6730]  ? kernfs_path_from_node+0x2f/0x290
[  233.682639][ T6730]  sysfs_create_dir_ns+0x259/0x280
[  233.682662][ T6730]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  233.682682][ T6730]  ? do_raw_spin_unlock+0x122/0x240
[  233.682701][ T6730]  kobject_add_internal+0x59f/0xb40
[  233.682725][ T6730]  kobject_init_and_add+0x125/0x190
[  233.682746][ T6730]  ? __pfx_kobject_init_and_add+0x10/0x10
[  233.682766][ T6730]  ? __raw_spin_lock_init+0x45/0x100
[  233.682782][ T6730]  ? __init_swait_queue_head+0xa9/0x150
[  233.682799][ T6730]  gfs2_sys_fs_add+0x234/0x450
[  233.682821][ T6730]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  233.682846][ T6730]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  233.682870][ T6730]  gfs2_fill_super+0x13c0/0x20d0
[  233.682895][ T6730]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.682914][ T6730]  ? sb_set_blocksize+0x104/0x180
[  233.682943][ T6730]  ? setup_bdev_super+0x4c1/0x5b0
[  233.682962][ T6730]  get_tree_bdev_flags+0x40e/0x4d0
[  233.682979][ T6730]  ? __pfx_gfs2_fill_super+0x10/0x10
[  233.682995][ T6730]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  233.683016][ T6730]  gfs2_get_tree+0x51/0x1e0
[  233.683033][ T6730]  vfs_get_tree+0x92/0x2b0
[  233.683052][ T6730]  do_new_mount+0x2a2/0xa30
[  233.683072][ T6730]  ? ns_capable+0x8a/0xf0
[  233.683093][ T6730]  ? __pfx_do_new_mount+0x10/0x10
[  233.683111][ T6730]  ? path_mount+0x61c/0xfe0
[  233.683128][ T6730]  ? user_path_at+0x44/0x60
[  233.683148][ T6730]  __se_sys_mount+0x317/0x410
[  233.683169][ T6730]  ? __pfx___se_sys_mount+0x10/0x10
[  233.683190][ T6730]  ? rcu_is_watching+0x15/0xb0
[  233.683211][ T6730]  ? __x64_sys_mount+0x20/0xc0
[  233.683230][ T6730]  do_syscall_64+0xfa/0xfa0
[  233.683248][ T6730]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.683263][ T6730]  ? clear_bhb_loop+0x60/0xb0
[  233.683281][ T6730]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  233.683298][ T6730] RIP: 0033:0x7f659f59038a
[  233.683314][ 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
[  233.683330][ T6730] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  233.683350][ T6730] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  233.683362][ T6730] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  233.683374][ T6730] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  233.683385][ T6730] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  233.683396][ T6730] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  233.683413][ T6730]  </TASK>
[  233.683459][ 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.
[  233.996436][ T6730] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.206472][ T6733] loop1: detected capacity change from 0 to 32768
[  234.221270][ T6733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.228693][ T6733] CPU: 1 UID: 0 PID: 6733 Comm: syz.1.239 Not tainted syzkaller #0 PREEMPT(full) 
[  234.228716][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.228727][ T6733] Call Trace:
[  234.228734][ T6733]  <TASK>
[  234.228741][ T6733]  dump_stack_lvl+0x189/0x250
[  234.228765][ T6733]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.228782][ T6733]  ? __pfx__printk+0x10/0x10
[  234.228801][ T6733]  ? kernfs_root+0x1c/0x230
[  234.228817][ T6733]  ? kernfs_path_from_node+0x250/0x290
[  234.228832][ T6733]  ? kernfs_path_from_node+0x2f/0x290
[  234.228848][ T6733]  sysfs_create_dir_ns+0x259/0x280
[  234.228871][ T6733]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.228892][ T6733]  ? do_raw_spin_unlock+0x122/0x240
[  234.228910][ T6733]  kobject_add_internal+0x59f/0xb40
[  234.228932][ T6733]  kobject_init_and_add+0x125/0x190
[  234.228953][ T6733]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.228973][ T6733]  ? __raw_spin_lock_init+0x45/0x100
[  234.228990][ T6733]  ? __init_swait_queue_head+0xa9/0x150
[  234.229008][ T6733]  gfs2_sys_fs_add+0x234/0x450
[  234.229032][ T6733]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.229055][ T6733]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.229076][ T6733]  gfs2_fill_super+0x13c0/0x20d0
[  234.229101][ T6733]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.229120][ T6733]  ? sb_set_blocksize+0x104/0x180
[  234.229141][ T6733]  ? setup_bdev_super+0x4c1/0x5b0
[  234.229159][ T6733]  get_tree_bdev_flags+0x40e/0x4d0
[  234.229178][ T6733]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.229195][ T6733]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.229218][ T6733]  gfs2_get_tree+0x51/0x1e0
[  234.229238][ T6733]  vfs_get_tree+0x92/0x2b0
[  234.229256][ T6733]  do_new_mount+0x2a2/0xa30
[  234.229277][ T6733]  ? ns_capable+0x8a/0xf0
[  234.229298][ T6733]  ? __pfx_do_new_mount+0x10/0x10
[  234.229316][ T6733]  ? path_mount+0x61c/0xfe0
[  234.229333][ T6733]  ? user_path_at+0x44/0x60
[  234.229352][ T6733]  __se_sys_mount+0x317/0x410
[  234.229374][ T6733]  ? __pfx___se_sys_mount+0x10/0x10
[  234.229395][ T6733]  ? rcu_is_watching+0x15/0xb0
[  234.229416][ T6733]  ? __x64_sys_mount+0x20/0xc0
[  234.229437][ T6733]  do_syscall_64+0xfa/0xfa0
[  234.229457][ T6733]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.229474][ T6733]  ? clear_bhb_loop+0x60/0xb0
[  234.229492][ T6733]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.229507][ T6733] RIP: 0033:0x7f659f59038a
[  234.229524][ 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
[  234.229537][ T6733] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.229557][ T6733] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  234.229570][ T6733] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  234.229583][ T6733] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  234.229594][ T6733] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.229606][ T6733] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  234.229625][ T6733]  </TASK>
[  234.229643][ 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.
[  234.543903][ T6733] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  234.753664][ T6736] loop1: detected capacity change from 0 to 32768
[  234.764721][ T6736] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  234.772477][ T6736] CPU: 0 UID: 0 PID: 6736 Comm: syz.1.240 Not tainted syzkaller #0 PREEMPT(full) 
[  234.772500][ T6736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  234.772512][ T6736] Call Trace:
[  234.772519][ T6736]  <TASK>
[  234.772526][ T6736]  dump_stack_lvl+0x189/0x250
[  234.772551][ T6736]  ? __pfx_dump_stack_lvl+0x10/0x10
[  234.772569][ T6736]  ? __pfx__printk+0x10/0x10
[  234.772588][ T6736]  ? kernfs_root+0x1c/0x230
[  234.772605][ T6736]  ? kernfs_path_from_node+0x250/0x290
[  234.772620][ T6736]  ? kernfs_path_from_node+0x2f/0x290
[  234.772636][ T6736]  sysfs_create_dir_ns+0x259/0x280
[  234.772658][ T6736]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  234.772680][ T6736]  ? do_raw_spin_unlock+0x122/0x240
[  234.772698][ T6736]  kobject_add_internal+0x59f/0xb40
[  234.772723][ T6736]  kobject_init_and_add+0x125/0x190
[  234.772744][ T6736]  ? __pfx_kobject_init_and_add+0x10/0x10
[  234.772764][ T6736]  ? __raw_spin_lock_init+0x45/0x100
[  234.772780][ T6736]  ? __init_swait_queue_head+0xa9/0x150
[  234.772797][ T6736]  gfs2_sys_fs_add+0x234/0x450
[  234.772819][ T6736]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  234.772843][ T6736]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  234.772866][ T6736]  gfs2_fill_super+0x13c0/0x20d0
[  234.772896][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.772916][ T6736]  ? sb_set_blocksize+0x104/0x180
[  234.772937][ T6736]  ? setup_bdev_super+0x4c1/0x5b0
[  234.772985][ T6736]  get_tree_bdev_flags+0x40e/0x4d0
[  234.773002][ T6736]  ? __pfx_gfs2_fill_super+0x10/0x10
[  234.773019][ T6736]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  234.773039][ T6736]  gfs2_get_tree+0x51/0x1e0
[  234.773056][ T6736]  vfs_get_tree+0x92/0x2b0
[  234.773073][ T6736]  do_new_mount+0x2a2/0xa30
[  234.773094][ T6736]  ? ns_capable+0x8a/0xf0
[  234.773116][ T6736]  ? __pfx_do_new_mount+0x10/0x10
[  234.773134][ T6736]  ? path_mount+0x61c/0xfe0
[  234.773150][ T6736]  ? user_path_at+0x44/0x60
[  234.773169][ T6736]  __se_sys_mount+0x317/0x410
[  234.773191][ T6736]  ? __pfx___se_sys_mount+0x10/0x10
[  234.773211][ T6736]  ? rcu_is_watching+0x15/0xb0
[  234.773232][ T6736]  ? __x64_sys_mount+0x20/0xc0
[  234.773251][ T6736]  do_syscall_64+0xfa/0xfa0
[  234.773271][ T6736]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.773289][ T6736]  ? clear_bhb_loop+0x60/0xb0
[  234.773307][ T6736]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  234.773324][ T6736] RIP: 0033:0x7f659f59038a
[  234.773339][ T6736] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  234.773354][ T6736] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  234.773400][ T6736] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  234.773413][ T6736] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  234.773425][ T6736] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  234.773437][ T6736] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  234.773449][ T6736] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  234.773467][ T6736]  </TASK>
[  234.773485][ T6736] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.087296][ T6736] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.303356][ T6739] loop1: detected capacity change from 0 to 32768
[  235.314587][ T6739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.322988][ T6739] CPU: 1 UID: 0 PID: 6739 Comm: syz.1.241 Not tainted syzkaller #0 PREEMPT(full) 
[  235.323013][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.323025][ T6739] Call Trace:
[  235.323032][ T6739]  <TASK>
[  235.323040][ T6739]  dump_stack_lvl+0x189/0x250
[  235.323065][ T6739]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.323083][ T6739]  ? __pfx__printk+0x10/0x10
[  235.323101][ T6739]  ? kernfs_root+0x1c/0x230
[  235.323118][ T6739]  ? kernfs_path_from_node+0x250/0x290
[  235.323131][ T6739]  ? kernfs_path_from_node+0x2f/0x290
[  235.323147][ T6739]  sysfs_create_dir_ns+0x259/0x280
[  235.323171][ T6739]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.323192][ T6739]  ? do_raw_spin_unlock+0x122/0x240
[  235.323211][ T6739]  kobject_add_internal+0x59f/0xb40
[  235.323234][ T6739]  kobject_init_and_add+0x125/0x190
[  235.323256][ T6739]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.323276][ T6739]  ? __raw_spin_lock_init+0x45/0x100
[  235.323291][ T6739]  ? __init_swait_queue_head+0xa9/0x150
[  235.323309][ T6739]  gfs2_sys_fs_add+0x234/0x450
[  235.323332][ T6739]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.323356][ T6739]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.323380][ T6739]  gfs2_fill_super+0x13c0/0x20d0
[  235.323403][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.323422][ T6739]  ? sb_set_blocksize+0x104/0x180
[  235.323442][ T6739]  ? setup_bdev_super+0x4c1/0x5b0
[  235.323460][ T6739]  get_tree_bdev_flags+0x40e/0x4d0
[  235.323478][ T6739]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.323495][ T6739]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.323517][ T6739]  gfs2_get_tree+0x51/0x1e0
[  235.323535][ T6739]  vfs_get_tree+0x92/0x2b0
[  235.323563][ T6739]  do_new_mount+0x2a2/0xa30
[  235.323584][ T6739]  ? ns_capable+0x8a/0xf0
[  235.323605][ T6739]  ? __pfx_do_new_mount+0x10/0x10
[  235.323622][ T6739]  ? path_mount+0x61c/0xfe0
[  235.323638][ T6739]  ? user_path_at+0x44/0x60
[  235.323656][ T6739]  __se_sys_mount+0x317/0x410
[  235.323679][ T6739]  ? __pfx___se_sys_mount+0x10/0x10
[  235.323700][ T6739]  ? rcu_is_watching+0x15/0xb0
[  235.323722][ T6739]  ? __x64_sys_mount+0x20/0xc0
[  235.323742][ T6739]  do_syscall_64+0xfa/0xfa0
[  235.323761][ T6739]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.323776][ T6739]  ? clear_bhb_loop+0x60/0xb0
[  235.323793][ T6739]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.323809][ T6739] RIP: 0033:0x7f659f59038a
[  235.323824][ T6739] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  235.323838][ T6739] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.323858][ T6739] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  235.323870][ T6739] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  235.323883][ T6739] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  235.323907][ T6739] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  235.323919][ T6739] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  235.323938][ T6739]  </TASK>
[  235.323956][ T6739] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  235.639293][ T6739] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  235.847960][ T6742] loop1: detected capacity change from 0 to 32768
[  235.860620][ T6742] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  235.868113][ T6742] CPU: 0 UID: 0 PID: 6742 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT(full) 
[  235.868136][ T6742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  235.868146][ T6742] Call Trace:
[  235.868153][ T6742]  <TASK>
[  235.868160][ T6742]  dump_stack_lvl+0x189/0x250
[  235.868185][ T6742]  ? __pfx_dump_stack_lvl+0x10/0x10
[  235.868204][ T6742]  ? __pfx__printk+0x10/0x10
[  235.868223][ T6742]  ? kernfs_root+0x1c/0x230
[  235.868240][ T6742]  ? kernfs_path_from_node+0x250/0x290
[  235.868254][ T6742]  ? kernfs_path_from_node+0x2f/0x290
[  235.868269][ T6742]  sysfs_create_dir_ns+0x259/0x280
[  235.868294][ T6742]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  235.868316][ T6742]  ? do_raw_spin_unlock+0x122/0x240
[  235.868335][ T6742]  kobject_add_internal+0x59f/0xb40
[  235.868359][ T6742]  kobject_init_and_add+0x125/0x190
[  235.868379][ T6742]  ? __pfx_kobject_init_and_add+0x10/0x10
[  235.868419][ T6742]  ? __raw_spin_lock_init+0x45/0x100
[  235.868436][ T6742]  ? __init_swait_queue_head+0xa9/0x150
[  235.868453][ T6742]  gfs2_sys_fs_add+0x234/0x450
[  235.868476][ T6742]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  235.868499][ T6742]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  235.868522][ T6742]  gfs2_fill_super+0x13c0/0x20d0
[  235.868547][ T6742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.868567][ T6742]  ? sb_set_blocksize+0x104/0x180
[  235.868588][ T6742]  ? setup_bdev_super+0x4c1/0x5b0
[  235.868607][ T6742]  get_tree_bdev_flags+0x40e/0x4d0
[  235.868625][ T6742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  235.868641][ T6742]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  235.868660][ T6742]  gfs2_get_tree+0x51/0x1e0
[  235.868677][ T6742]  vfs_get_tree+0x92/0x2b0
[  235.868695][ T6742]  do_new_mount+0x2a2/0xa30
[  235.868716][ T6742]  ? ns_capable+0x8a/0xf0
[  235.868737][ T6742]  ? __pfx_do_new_mount+0x10/0x10
[  235.868755][ T6742]  ? path_mount+0x61c/0xfe0
[  235.868772][ T6742]  ? user_path_at+0x44/0x60
[  235.868839][ T6742]  __se_sys_mount+0x317/0x410
[  235.868861][ T6742]  ? __pfx___se_sys_mount+0x10/0x10
[  235.868891][ T6742]  ? rcu_is_watching+0x15/0xb0
[  235.868912][ T6742]  ? __x64_sys_mount+0x20/0xc0
[  235.868933][ T6742]  do_syscall_64+0xfa/0xfa0
[  235.868952][ T6742]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.868975][ T6742]  ? clear_bhb_loop+0x60/0xb0
[  235.868991][ T6742]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  235.869006][ T6742] RIP: 0033:0x7f659f59038a
[  235.869021][ 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
[  235.869035][ T6742] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  235.869055][ T6742] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  235.869068][ T6742] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  235.869080][ T6742] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  235.869092][ T6742] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  235.869103][ T6742] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  235.869121][ T6742]  </TASK>
[  235.869140][ 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.
[  236.183427][ T6742] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.404997][ T6745] loop1: detected capacity change from 0 to 32768
[  236.414131][ T6745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.422056][ T6745] CPU: 1 UID: 0 PID: 6745 Comm: syz.1.243 Not tainted syzkaller #0 PREEMPT(full) 
[  236.422086][ T6745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.422097][ T6745] Call Trace:
[  236.422104][ T6745]  <TASK>
[  236.422111][ T6745]  dump_stack_lvl+0x189/0x250
[  236.422136][ T6745]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.422152][ T6745]  ? __pfx__printk+0x10/0x10
[  236.422172][ T6745]  ? kernfs_root+0x1c/0x230
[  236.422190][ T6745]  ? kernfs_path_from_node+0x250/0x290
[  236.422203][ T6745]  ? kernfs_path_from_node+0x2f/0x290
[  236.422218][ T6745]  sysfs_create_dir_ns+0x259/0x280
[  236.422239][ T6745]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.422260][ T6745]  ? do_raw_spin_unlock+0x122/0x240
[  236.422279][ T6745]  kobject_add_internal+0x59f/0xb40
[  236.422304][ T6745]  kobject_init_and_add+0x125/0x190
[  236.422325][ T6745]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.422345][ T6745]  ? __raw_spin_lock_init+0x45/0x100
[  236.422360][ T6745]  ? __init_swait_queue_head+0xa9/0x150
[  236.422377][ T6745]  gfs2_sys_fs_add+0x234/0x450
[  236.422398][ T6745]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.422425][ T6745]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.422445][ T6745]  gfs2_fill_super+0x13c0/0x20d0
[  236.422467][ T6745]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.422492][ T6745]  ? sb_set_blocksize+0x104/0x180
[  236.422516][ T6745]  ? setup_bdev_super+0x4c1/0x5b0
[  236.422535][ T6745]  get_tree_bdev_flags+0x40e/0x4d0
[  236.422553][ T6745]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.422573][ T6745]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.422597][ T6745]  gfs2_get_tree+0x51/0x1e0
[  236.422612][ T6745]  vfs_get_tree+0x92/0x2b0
[  236.422627][ T6745]  do_new_mount+0x2a2/0xa30
[  236.422647][ T6745]  ? ns_capable+0x8a/0xf0
[  236.422668][ T6745]  ? __pfx_do_new_mount+0x10/0x10
[  236.422686][ T6745]  ? path_mount+0x61c/0xfe0
[  236.422702][ T6745]  ? user_path_at+0x44/0x60
[  236.422720][ T6745]  __se_sys_mount+0x317/0x410
[  236.422742][ T6745]  ? __pfx___se_sys_mount+0x10/0x10
[  236.422764][ T6745]  ? rcu_is_watching+0x15/0xb0
[  236.422786][ T6745]  ? __x64_sys_mount+0x20/0xc0
[  236.422805][ T6745]  do_syscall_64+0xfa/0xfa0
[  236.422824][ T6745]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.422849][ T6745]  ? clear_bhb_loop+0x60/0xb0
[  236.422870][ T6745]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.422885][ T6745] RIP: 0033:0x7f659f59038a
[  236.422900][ 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
[  236.422915][ T6745] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.422935][ T6745] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  236.422948][ T6745] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  236.422960][ T6745] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  236.422972][ T6745] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  236.422983][ T6745] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  236.423001][ T6745]  </TASK>
[  236.423021][ 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.
[  236.738285][ T6745] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  236.939098][ T6748] loop1: detected capacity change from 0 to 32768
[  236.952146][ T6748] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  236.959579][ T6748] CPU: 0 UID: 0 PID: 6748 Comm: syz.1.244 Not tainted syzkaller #0 PREEMPT(full) 
[  236.959603][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  236.959615][ T6748] Call Trace:
[  236.959621][ T6748]  <TASK>
[  236.959628][ T6748]  dump_stack_lvl+0x189/0x250
[  236.959654][ T6748]  ? __pfx_dump_stack_lvl+0x10/0x10
[  236.959672][ T6748]  ? __pfx__printk+0x10/0x10
[  236.959692][ T6748]  ? kernfs_root+0x1c/0x230
[  236.959709][ T6748]  ? kernfs_path_from_node+0x250/0x290
[  236.959724][ T6748]  ? kernfs_path_from_node+0x2f/0x290
[  236.959739][ T6748]  sysfs_create_dir_ns+0x259/0x280
[  236.959762][ T6748]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  236.959783][ T6748]  ? do_raw_spin_unlock+0x122/0x240
[  236.959802][ T6748]  kobject_add_internal+0x59f/0xb40
[  236.959827][ T6748]  kobject_init_and_add+0x125/0x190
[  236.959849][ T6748]  ? __pfx_kobject_init_and_add+0x10/0x10
[  236.959869][ T6748]  ? __raw_spin_lock_init+0x45/0x100
[  236.959884][ T6748]  ? __init_swait_queue_head+0xa9/0x150
[  236.959902][ T6748]  gfs2_sys_fs_add+0x234/0x450
[  236.959923][ T6748]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  236.959945][ T6748]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  236.959967][ T6748]  gfs2_fill_super+0x13c0/0x20d0
[  236.959991][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.960010][ T6748]  ? sb_set_blocksize+0x104/0x180
[  236.960031][ T6748]  ? setup_bdev_super+0x4c1/0x5b0
[  236.960050][ T6748]  get_tree_bdev_flags+0x40e/0x4d0
[  236.960068][ T6748]  ? __pfx_gfs2_fill_super+0x10/0x10
[  236.960085][ T6748]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  236.960106][ T6748]  gfs2_get_tree+0x51/0x1e0
[  236.960125][ T6748]  vfs_get_tree+0x92/0x2b0
[  236.960145][ T6748]  do_new_mount+0x2a2/0xa30
[  236.960166][ T6748]  ? ns_capable+0x8a/0xf0
[  236.960186][ T6748]  ? __pfx_do_new_mount+0x10/0x10
[  236.960204][ T6748]  ? path_mount+0x61c/0xfe0
[  236.960221][ T6748]  ? user_path_at+0x44/0x60
[  236.960239][ T6748]  __se_sys_mount+0x317/0x410
[  236.960264][ T6748]  ? __pfx___se_sys_mount+0x10/0x10
[  236.960282][ T6748]  ? rcu_is_watching+0x15/0xb0
[  236.960302][ T6748]  ? __x64_sys_mount+0x20/0xc0
[  236.960322][ T6748]  do_syscall_64+0xfa/0xfa0
[  236.960340][ T6748]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.960356][ T6748]  ? clear_bhb_loop+0x60/0xb0
[  236.960374][ T6748]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  236.960390][ T6748] RIP: 0033:0x7f659f59038a
[  236.960406][ T6748] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  236.960422][ T6748] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  236.960442][ T6748] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  236.960454][ T6748] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  236.960467][ T6748] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  236.960478][ T6748] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  236.960518][ T6748] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  236.960538][ T6748]  </TASK>
[  237.258543][ 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.
[  237.272614][ T6748] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  237.487071][ T6751] loop1: detected capacity change from 0 to 32768
[  237.497965][ T6751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  237.505479][ T6751] CPU: 1 UID: 0 PID: 6751 Comm: syz.1.245 Not tainted syzkaller #0 PREEMPT(full) 
[  237.505511][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  237.505522][ T6751] Call Trace:
[  237.505529][ T6751]  <TASK>
[  237.505536][ T6751]  dump_stack_lvl+0x189/0x250
[  237.505560][ T6751]  ? __pfx_dump_stack_lvl+0x10/0x10
[  237.505576][ T6751]  ? __pfx__printk+0x10/0x10
[  237.505594][ T6751]  ? kernfs_root+0x1c/0x230
[  237.505608][ T6751]  ? kernfs_path_from_node+0x250/0x290
[  237.505622][ T6751]  ? kernfs_path_from_node+0x2f/0x290
[  237.505635][ T6751]  sysfs_create_dir_ns+0x259/0x280
[  237.505655][ T6751]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  237.505676][ T6751]  ? do_raw_spin_unlock+0x122/0x240
[  237.505693][ T6751]  kobject_add_internal+0x59f/0xb40
[  237.505714][ T6751]  kobject_init_and_add+0x125/0x190
[  237.505735][ T6751]  ? __pfx_kobject_init_and_add+0x10/0x10
[  237.505751][ T6751]  ? __raw_spin_lock_init+0x45/0x100
[  237.505765][ T6751]  ? __init_swait_queue_head+0xa9/0x150
[  237.505781][ T6751]  gfs2_sys_fs_add+0x234/0x450
[  237.505802][ T6751]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  237.505824][ T6751]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  237.505845][ T6751]  gfs2_fill_super+0x13c0/0x20d0
[  237.505868][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.505886][ T6751]  ? sb_set_blocksize+0x104/0x180
[  237.505907][ T6751]  ? setup_bdev_super+0x4c1/0x5b0
[  237.505924][ T6751]  get_tree_bdev_flags+0x40e/0x4d0
[  237.505941][ T6751]  ? __pfx_gfs2_fill_super+0x10/0x10
[  237.505959][ T6751]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  237.505981][ T6751]  gfs2_get_tree+0x51/0x1e0
[  237.506001][ T6751]  vfs_get_tree+0x92/0x2b0
[  237.506019][ T6751]  do_new_mount+0x2a2/0xa30
[  237.506040][ T6751]  ? ns_capable+0x8a/0xf0
[  237.506060][ T6751]  ? __pfx_do_new_mount+0x10/0x10
[  237.506077][ T6751]  ? path_mount+0x61c/0xfe0
[  237.506093][ T6751]  ? user_path_at+0x44/0x60
[  237.506111][ T6751]  __se_sys_mount+0x317/0x410
[  237.506131][ T6751]  ? __pfx___se_sys_mount+0x10/0x10
[  237.506151][ T6751]  ? rcu_is_watching+0x15/0xb0
[  237.506172][ T6751]  ? __x64_sys_mount+0x20/0xc0
[  237.506192][ T6751]  do_syscall_64+0xfa/0xfa0
[  237.506211][ T6751]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.506227][ T6751]  ? clear_bhb_loop+0x60/0xb0
[  237.506244][ T6751]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  237.506260][ T6751] RIP: 0033:0x7f659f59038a
[  237.506276][ T6751] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  237.506291][ T6751] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  237.506320][ T6751] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  237.506333][ T6751] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  237.506346][ T6751] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  237.506359][ T6751] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  237.506371][ T6751] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  237.506391][ T6751]  </TASK>
[  237.506410][ T6751] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  237.820867][ T6751] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  238.030638][ T6754] loop1: detected capacity change from 0 to 32768
[  238.042509][ T6754] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.049956][ T6754] CPU: 0 UID: 0 PID: 6754 Comm: syz.1.246 Not tainted syzkaller #0 PREEMPT(full) 
[  238.049980][ T6754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.049991][ T6754] Call Trace:
[  238.049998][ T6754]  <TASK>
[  238.050005][ T6754]  dump_stack_lvl+0x189/0x250
[  238.050029][ T6754]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.050048][ T6754]  ? __pfx__printk+0x10/0x10
[  238.050066][ T6754]  ? kernfs_root+0x1c/0x230
[  238.050083][ T6754]  ? kernfs_path_from_node+0x250/0x290
[  238.050097][ T6754]  ? kernfs_path_from_node+0x2f/0x290
[  238.050113][ T6754]  sysfs_create_dir_ns+0x259/0x280
[  238.050136][ T6754]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.050158][ T6754]  ? do_raw_spin_unlock+0x122/0x240
[  238.050178][ T6754]  kobject_add_internal+0x59f/0xb40
[  238.050200][ T6754]  kobject_init_and_add+0x125/0x190
[  238.050222][ T6754]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.050242][ T6754]  ? __raw_spin_lock_init+0x45/0x100
[  238.050261][ T6754]  ? __init_swait_queue_head+0xa9/0x150
[  238.050276][ T6754]  gfs2_sys_fs_add+0x234/0x450
[  238.050297][ T6754]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.050319][ T6754]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.050342][ T6754]  gfs2_fill_super+0x13c0/0x20d0
[  238.050365][ T6754]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.050384][ T6754]  ? sb_set_blocksize+0x104/0x180
[  238.050404][ T6754]  ? setup_bdev_super+0x4c1/0x5b0
[  238.050422][ T6754]  get_tree_bdev_flags+0x40e/0x4d0
[  238.050439][ T6754]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.050456][ T6754]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.050476][ T6754]  gfs2_get_tree+0x51/0x1e0
[  238.050495][ T6754]  vfs_get_tree+0x92/0x2b0
[  238.050513][ T6754]  do_new_mount+0x2a2/0xa30
[  238.050534][ T6754]  ? ns_capable+0x8a/0xf0
[  238.050554][ T6754]  ? __pfx_do_new_mount+0x10/0x10
[  238.050572][ T6754]  ? path_mount+0x61c/0xfe0
[  238.050590][ T6754]  ? user_path_at+0x44/0x60
[  238.050608][ T6754]  __se_sys_mount+0x317/0x410
[  238.050629][ T6754]  ? __pfx___se_sys_mount+0x10/0x10
[  238.050649][ T6754]  ? rcu_is_watching+0x15/0xb0
[  238.050787][ T6754]  ? __x64_sys_mount+0x20/0xc0
[  238.050810][ T6754]  do_syscall_64+0xfa/0xfa0
[  238.050831][ T6754]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.050845][ T6754]  ? clear_bhb_loop+0x60/0xb0
[  238.050860][ T6754]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.050875][ T6754] RIP: 0033:0x7f659f59038a
[  238.050890][ 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
[  238.050904][ T6754] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.050923][ T6754] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  238.050934][ T6754] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  238.050946][ T6754] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  238.050956][ T6754] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  238.050966][ T6754] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  238.050983][ T6754]  </TASK>
[  238.350487][ 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.
[  238.364785][ T6754] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/08/24 13:49:36 executed programs: 232
[  238.577709][ T6757] loop1: detected capacity change from 0 to 32768
[  238.586587][ T6757] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  238.600826][ T6757] CPU: 1 UID: 0 PID: 6757 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  238.600848][ T6757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  238.600859][ T6757] Call Trace:
[  238.600865][ T6757]  <TASK>
[  238.600873][ T6757]  dump_stack_lvl+0x189/0x250
[  238.600898][ T6757]  ? __pfx_dump_stack_lvl+0x10/0x10
[  238.600916][ T6757]  ? __pfx__printk+0x10/0x10
[  238.600935][ T6757]  ? kernfs_root+0x1c/0x230
[  238.600951][ T6757]  ? kernfs_path_from_node+0x250/0x290
[  238.600964][ T6757]  ? kernfs_path_from_node+0x2f/0x290
[  238.600980][ T6757]  sysfs_create_dir_ns+0x259/0x280
[  238.601005][ T6757]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  238.601027][ T6757]  ? do_raw_spin_unlock+0x122/0x240
[  238.601046][ T6757]  kobject_add_internal+0x59f/0xb40
[  238.601069][ T6757]  kobject_init_and_add+0x125/0x190
[  238.601090][ T6757]  ? __pfx_kobject_init_and_add+0x10/0x10
[  238.601109][ T6757]  ? __raw_spin_lock_init+0x45/0x100
[  238.601124][ T6757]  ? __init_swait_queue_head+0xa9/0x150
[  238.601141][ T6757]  gfs2_sys_fs_add+0x234/0x450
[  238.601162][ T6757]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  238.601185][ T6757]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  238.601207][ T6757]  gfs2_fill_super+0x13c0/0x20d0
[  238.601231][ T6757]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.601250][ T6757]  ? sb_set_blocksize+0x104/0x180
[  238.601270][ T6757]  ? setup_bdev_super+0x4c1/0x5b0
[  238.601290][ T6757]  get_tree_bdev_flags+0x40e/0x4d0
[  238.601309][ T6757]  ? __pfx_gfs2_fill_super+0x10/0x10
[  238.601326][ T6757]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  238.601346][ T6757]  gfs2_get_tree+0x51/0x1e0
[  238.601365][ T6757]  vfs_get_tree+0x92/0x2b0
[  238.601384][ T6757]  do_new_mount+0x2a2/0xa30
[  238.601405][ T6757]  ? ns_capable+0x8a/0xf0
[  238.601427][ T6757]  ? __pfx_do_new_mount+0x10/0x10
[  238.601446][ T6757]  ? path_mount+0x61c/0xfe0
[  238.601468][ T6757]  ? user_path_at+0x44/0x60
[  238.601486][ T6757]  __se_sys_mount+0x317/0x410
[  238.601507][ T6757]  ? __pfx___se_sys_mount+0x10/0x10
[  238.601529][ T6757]  ? rcu_is_watching+0x15/0xb0
[  238.601550][ T6757]  ? __x64_sys_mount+0x20/0xc0
[  238.601569][ T6757]  do_syscall_64+0xfa/0xfa0
[  238.601587][ T6757]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.601604][ T6757]  ? clear_bhb_loop+0x60/0xb0
[  238.601623][ T6757]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  238.601640][ T6757] RIP: 0033:0x7f659f59038a
[  238.601663][ 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
[  238.601677][ T6757] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  238.601696][ T6757] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  238.601709][ T6757] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  238.601721][ T6757] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  238.601733][ T6757] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  238.601745][ T6757] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  238.601764][ T6757]  </TASK>
[  238.601815][ 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.
[  238.916739][ T6757] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.124368][ T6760] loop1: detected capacity change from 0 to 32768
[  239.135001][ T6760] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  239.142799][ T6760] CPU: 1 UID: 0 PID: 6760 Comm: syz.1.248 Not tainted syzkaller #0 PREEMPT(full) 
[  239.142823][ T6760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  239.142835][ T6760] Call Trace:
[  239.142843][ T6760]  <TASK>
[  239.142850][ T6760]  dump_stack_lvl+0x189/0x250
[  239.142875][ T6760]  ? __pfx_dump_stack_lvl+0x10/0x10
[  239.142892][ T6760]  ? __pfx__printk+0x10/0x10
[  239.142910][ T6760]  ? kernfs_root+0x1c/0x230
[  239.142926][ T6760]  ? kernfs_path_from_node+0x250/0x290
[  239.142940][ T6760]  ? kernfs_path_from_node+0x2f/0x290
[  239.142956][ T6760]  sysfs_create_dir_ns+0x259/0x280
[  239.142978][ T6760]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  239.143000][ T6760]  ? do_raw_spin_unlock+0x122/0x240
[  239.143017][ T6760]  kobject_add_internal+0x59f/0xb40
[  239.143041][ T6760]  kobject_init_and_add+0x125/0x190
[  239.143062][ T6760]  ? __pfx_kobject_init_and_add+0x10/0x10
[  239.143081][ T6760]  ? __raw_spin_lock_init+0x45/0x100
[  239.143096][ T6760]  ? __init_swait_queue_head+0xa9/0x150
[  239.143114][ T6760]  gfs2_sys_fs_add+0x234/0x450
[  239.143136][ T6760]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  239.143158][ T6760]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  239.143181][ T6760]  gfs2_fill_super+0x13c0/0x20d0
[  239.143205][ T6760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.143226][ T6760]  ? sb_set_blocksize+0x104/0x180
[  239.143247][ T6760]  ? setup_bdev_super+0x4c1/0x5b0
[  239.143267][ T6760]  get_tree_bdev_flags+0x40e/0x4d0
[  239.143284][ T6760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.143301][ T6760]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  239.143322][ T6760]  gfs2_get_tree+0x51/0x1e0
[  239.143338][ T6760]  vfs_get_tree+0x92/0x2b0
[  239.143354][ T6760]  do_new_mount+0x2a2/0xa30
[  239.143371][ T6760]  ? ns_capable+0x8a/0xf0
[  239.143388][ T6760]  ? __pfx_do_new_mount+0x10/0x10
[  239.143402][ T6760]  ? path_mount+0x61c/0xfe0
[  239.143418][ T6760]  ? user_path_at+0x44/0x60
[  239.143435][ T6760]  __se_sys_mount+0x317/0x410
[  239.143457][ T6760]  ? __pfx___se_sys_mount+0x10/0x10
[  239.143477][ T6760]  ? rcu_is_watching+0x15/0xb0
[  239.143499][ T6760]  ? __x64_sys_mount+0x20/0xc0
[  239.143518][ T6760]  do_syscall_64+0xfa/0xfa0
[  239.143537][ T6760]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.143552][ T6760]  ? clear_bhb_loop+0x60/0xb0
[  239.143571][ T6760]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.143598][ T6760] RIP: 0033:0x7f659f59038a
[  239.143614][ 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
[  239.143629][ T6760] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.143649][ T6760] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  239.143663][ T6760] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  239.143676][ T6760] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  239.143688][ T6760] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  239.143700][ T6760] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  239.143717][ T6760]  </TASK>
[  239.143736][ 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.
[  239.459120][ T6760] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  239.669257][ T6764] loop1: detected capacity change from 0 to 32768
[  239.683464][ T6764] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  239.691922][ T6764] CPU: 1 UID: 0 PID: 6764 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT(full) 
[  239.691947][ T6764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  239.691958][ T6764] Call Trace:
[  239.691965][ T6764]  <TASK>
[  239.691972][ T6764]  dump_stack_lvl+0x189/0x250
[  239.691997][ T6764]  ? __pfx_dump_stack_lvl+0x10/0x10
[  239.692014][ T6764]  ? __pfx__printk+0x10/0x10
[  239.692034][ T6764]  ? kernfs_root+0x1c/0x230
[  239.692052][ T6764]  ? kernfs_path_from_node+0x250/0x290
[  239.692067][ T6764]  ? kernfs_path_from_node+0x2f/0x290
[  239.692084][ T6764]  sysfs_create_dir_ns+0x259/0x280
[  239.692106][ T6764]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  239.692127][ T6764]  ? do_raw_spin_unlock+0x122/0x240
[  239.692146][ T6764]  kobject_add_internal+0x59f/0xb40
[  239.692170][ T6764]  kobject_init_and_add+0x125/0x190
[  239.692191][ T6764]  ? __pfx_kobject_init_and_add+0x10/0x10
[  239.692210][ T6764]  ? __raw_spin_lock_init+0x45/0x100
[  239.692226][ T6764]  ? __init_swait_queue_head+0xa9/0x150
[  239.692245][ T6764]  gfs2_sys_fs_add+0x234/0x450
[  239.692268][ T6764]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  239.692292][ T6764]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  239.692313][ T6764]  gfs2_fill_super+0x13c0/0x20d0
[  239.692336][ T6764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.692355][ T6764]  ? sb_set_blocksize+0x104/0x180
[  239.692375][ T6764]  ? setup_bdev_super+0x4c1/0x5b0
[  239.692392][ T6764]  get_tree_bdev_flags+0x40e/0x4d0
[  239.692420][ T6764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  239.692438][ T6764]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  239.692459][ T6764]  gfs2_get_tree+0x51/0x1e0
[  239.692478][ T6764]  vfs_get_tree+0x92/0x2b0
[  239.692496][ T6764]  do_new_mount+0x2a2/0xa30
[  239.692516][ T6764]  ? ns_capable+0x8a/0xf0
[  239.692537][ T6764]  ? __pfx_do_new_mount+0x10/0x10
[  239.692563][ T6764]  ? path_mount+0x61c/0xfe0
[  239.692580][ T6764]  ? user_path_at+0x44/0x60
[  239.692597][ T6764]  __se_sys_mount+0x317/0x410
[  239.692620][ T6764]  ? __pfx___se_sys_mount+0x10/0x10
[  239.692641][ T6764]  ? rcu_is_watching+0x15/0xb0
[  239.692663][ T6764]  ? __x64_sys_mount+0x20/0xc0
[  239.692683][ T6764]  do_syscall_64+0xfa/0xfa0
[  239.692703][ T6764]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.692719][ T6764]  ? clear_bhb_loop+0x60/0xb0
[  239.692735][ T6764]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  239.692750][ T6764] RIP: 0033:0x7f659f59038a
[  239.692765][ T6764] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  239.692779][ T6764] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  239.692798][ T6764] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  239.692811][ T6764] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  239.692823][ T6764] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  239.692835][ T6764] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  239.692847][ T6764] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  239.692865][ T6764]  </TASK>
[  239.692883][ T6764] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.006938][ T6764] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.214437][ T6767] loop1: detected capacity change from 0 to 32768
[  240.238914][ T6767] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.246772][ T6767] CPU: 0 UID: 0 PID: 6767 Comm: syz.1.250 Not tainted syzkaller #0 PREEMPT(full) 
[  240.246796][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.246808][ T6767] Call Trace:
[  240.246816][ T6767]  <TASK>
[  240.246824][ T6767]  dump_stack_lvl+0x189/0x250
[  240.246849][ T6767]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.246868][ T6767]  ? __pfx__printk+0x10/0x10
[  240.246888][ T6767]  ? kernfs_root+0x1c/0x230
[  240.246905][ T6767]  ? kernfs_path_from_node+0x250/0x290
[  240.246920][ T6767]  ? kernfs_path_from_node+0x2f/0x290
[  240.246936][ T6767]  sysfs_create_dir_ns+0x259/0x280
[  240.246968][ T6767]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.246989][ T6767]  ? do_raw_spin_unlock+0x122/0x240
[  240.247007][ T6767]  kobject_add_internal+0x59f/0xb40
[  240.247029][ T6767]  kobject_init_and_add+0x125/0x190
[  240.247051][ T6767]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.247071][ T6767]  ? __raw_spin_lock_init+0x45/0x100
[  240.247087][ T6767]  ? __init_swait_queue_head+0xa9/0x150
[  240.247105][ T6767]  gfs2_sys_fs_add+0x234/0x450
[  240.247126][ T6767]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.247149][ T6767]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.247173][ T6767]  gfs2_fill_super+0x13c0/0x20d0
[  240.247195][ T6767]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.247216][ T6767]  ? sb_set_blocksize+0x104/0x180
[  240.247237][ T6767]  ? setup_bdev_super+0x4c1/0x5b0
[  240.247257][ T6767]  get_tree_bdev_flags+0x40e/0x4d0
[  240.247275][ T6767]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.247292][ T6767]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.247313][ T6767]  gfs2_get_tree+0x51/0x1e0
[  240.247332][ T6767]  vfs_get_tree+0x92/0x2b0
[  240.247351][ T6767]  do_new_mount+0x2a2/0xa30
[  240.247372][ T6767]  ? ns_capable+0x8a/0xf0
[  240.247394][ T6767]  ? __pfx_do_new_mount+0x10/0x10
[  240.247412][ T6767]  ? path_mount+0x61c/0xfe0
[  240.247429][ T6767]  ? user_path_at+0x44/0x60
[  240.247488][ T6767]  __se_sys_mount+0x317/0x410
[  240.247510][ T6767]  ? __pfx___se_sys_mount+0x10/0x10
[  240.247531][ T6767]  ? rcu_is_watching+0x15/0xb0
[  240.247551][ T6767]  ? __x64_sys_mount+0x20/0xc0
[  240.247571][ T6767]  do_syscall_64+0xfa/0xfa0
[  240.247590][ T6767]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.247607][ T6767]  ? clear_bhb_loop+0x60/0xb0
[  240.247625][ T6767]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.247642][ T6767] RIP: 0033:0x7f659f59038a
[  240.247657][ T6767] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  240.247672][ T6767] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.247691][ T6767] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  240.247705][ T6767] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  240.247718][ T6767] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  240.247731][ T6767] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  240.247743][ T6767] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  240.247763][ T6767]  </TASK>
[  240.247930][ T6767] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  240.566591][ T6767] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  240.779387][ T6771] loop1: detected capacity change from 0 to 32768
[  240.795181][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  240.802933][ T6771] CPU: 1 UID: 0 PID: 6771 Comm: syz.1.251 Not tainted syzkaller #0 PREEMPT(full) 
[  240.802957][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  240.802968][ T6771] Call Trace:
[  240.802975][ T6771]  <TASK>
[  240.802982][ T6771]  dump_stack_lvl+0x189/0x250
[  240.803006][ T6771]  ? __pfx_dump_stack_lvl+0x10/0x10
[  240.803024][ T6771]  ? __pfx__printk+0x10/0x10
[  240.803043][ T6771]  ? kernfs_root+0x1c/0x230
[  240.803061][ T6771]  ? kernfs_path_from_node+0x250/0x290
[  240.803075][ T6771]  ? kernfs_path_from_node+0x2f/0x290
[  240.803090][ T6771]  sysfs_create_dir_ns+0x259/0x280
[  240.803113][ T6771]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  240.803136][ T6771]  ? do_raw_spin_unlock+0x122/0x240
[  240.803166][ T6771]  kobject_add_internal+0x59f/0xb40
[  240.803190][ T6771]  kobject_init_and_add+0x125/0x190
[  240.803210][ T6771]  ? __pfx_kobject_init_and_add+0x10/0x10
[  240.803229][ T6771]  ? __raw_spin_lock_init+0x45/0x100
[  240.803244][ T6771]  ? __init_swait_queue_head+0xa9/0x150
[  240.803260][ T6771]  gfs2_sys_fs_add+0x234/0x450
[  240.803282][ T6771]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  240.803305][ T6771]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  240.803328][ T6771]  gfs2_fill_super+0x13c0/0x20d0
[  240.803351][ T6771]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.803369][ T6771]  ? sb_set_blocksize+0x104/0x180
[  240.803389][ T6771]  ? setup_bdev_super+0x4c1/0x5b0
[  240.803408][ T6771]  get_tree_bdev_flags+0x40e/0x4d0
[  240.803426][ T6771]  ? __pfx_gfs2_fill_super+0x10/0x10
[  240.803444][ T6771]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  240.803465][ T6771]  gfs2_get_tree+0x51/0x1e0
[  240.803482][ T6771]  vfs_get_tree+0x92/0x2b0
[  240.803516][ T6771]  do_new_mount+0x2a2/0xa30
[  240.803537][ T6771]  ? ns_capable+0x8a/0xf0
[  240.803558][ T6771]  ? __pfx_do_new_mount+0x10/0x10
[  240.803577][ T6771]  ? path_mount+0x61c/0xfe0
[  240.803593][ T6771]  ? user_path_at+0x44/0x60
[  240.803612][ T6771]  __se_sys_mount+0x317/0x410
[  240.803633][ T6771]  ? __pfx___se_sys_mount+0x10/0x10
[  240.803652][ T6771]  ? rcu_is_watching+0x15/0xb0
[  240.803673][ T6771]  ? __x64_sys_mount+0x20/0xc0
[  240.803692][ T6771]  do_syscall_64+0xfa/0xfa0
[  240.803712][ T6771]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.803728][ T6771]  ? clear_bhb_loop+0x60/0xb0
[  240.803745][ T6771]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  240.803774][ T6771] RIP: 0033:0x7f659f59038a
[  240.803790][ T6771] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  240.803804][ T6771] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  240.803823][ T6771] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  240.803836][ T6771] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  240.803849][ T6771] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  240.803861][ T6771] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  240.803873][ T6771] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  240.803903][ T6771]  </TASK>
[  240.803971][ T6771] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  241.118517][ T6771] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.330100][ T6774] loop1: detected capacity change from 0 to 32768
[  241.354566][ T6774] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  241.362789][ T6774] CPU: 0 UID: 0 PID: 6774 Comm: syz.1.252 Not tainted syzkaller #0 PREEMPT(full) 
[  241.362813][ T6774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  241.362825][ T6774] Call Trace:
[  241.362832][ T6774]  <TASK>
[  241.362840][ T6774]  dump_stack_lvl+0x189/0x250
[  241.362864][ T6774]  ? __pfx_dump_stack_lvl+0x10/0x10
[  241.362883][ T6774]  ? __pfx__printk+0x10/0x10
[  241.362904][ T6774]  ? kernfs_root+0x1c/0x230
[  241.362921][ T6774]  ? kernfs_path_from_node+0x250/0x290
[  241.362936][ T6774]  ? kernfs_path_from_node+0x2f/0x290
[  241.362952][ T6774]  sysfs_create_dir_ns+0x259/0x280
[  241.362975][ T6774]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  241.362997][ T6774]  ? do_raw_spin_unlock+0x122/0x240
[  241.363017][ T6774]  kobject_add_internal+0x59f/0xb40
[  241.363040][ T6774]  kobject_init_and_add+0x125/0x190
[  241.363062][ T6774]  ? __pfx_kobject_init_and_add+0x10/0x10
[  241.363082][ T6774]  ? __raw_spin_lock_init+0x45/0x100
[  241.363099][ T6774]  ? __init_swait_queue_head+0xa9/0x150
[  241.363117][ T6774]  gfs2_sys_fs_add+0x234/0x450
[  241.363139][ T6774]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  241.363169][ T6774]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  241.363193][ T6774]  gfs2_fill_super+0x13c0/0x20d0
[  241.363217][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  241.363236][ T6774]  ? sb_set_blocksize+0x104/0x180
[  241.363256][ T6774]  ? setup_bdev_super+0x4c1/0x5b0
[  241.363276][ T6774]  get_tree_bdev_flags+0x40e/0x4d0
[  241.363295][ T6774]  ? __pfx_gfs2_fill_super+0x10/0x10
[  241.363313][ T6774]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  241.363335][ T6774]  gfs2_get_tree+0x51/0x1e0
[  241.363354][ T6774]  vfs_get_tree+0x92/0x2b0
[  241.363373][ T6774]  do_new_mount+0x2a2/0xa30
[  241.363393][ T6774]  ? ns_capable+0x8a/0xf0
[  241.363414][ T6774]  ? __pfx_do_new_mount+0x10/0x10
[  241.363433][ T6774]  ? path_mount+0x61c/0xfe0
[  241.363450][ T6774]  ? user_path_at+0x44/0x60
[  241.363469][ T6774]  __se_sys_mount+0x317/0x410
[  241.363491][ T6774]  ? __pfx___se_sys_mount+0x10/0x10
[  241.363513][ T6774]  ? rcu_is_watching+0x15/0xb0
[  241.363533][ T6774]  ? __x64_sys_mount+0x20/0xc0
[  241.363554][ T6774]  do_syscall_64+0xfa/0xfa0
[  241.363573][ T6774]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  241.363590][ T6774]  ? clear_bhb_loop+0x60/0xb0
[  241.363608][ T6774]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  241.363624][ T6774] RIP: 0033:0x7f659f59038a
[  241.363640][ 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
[  241.363656][ T6774] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  241.363675][ T6774] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  241.363689][ T6774] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  241.363702][ T6774] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  241.363714][ T6774] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  241.363726][ T6774] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  241.363746][ T6774]  </TASK>
[  241.363764][ 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.
[  241.678113][ T6774] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  241.743512][   T31] INFO: task syz.0.17:6030 blocked for more than 143 seconds.
[  241.765070][   T31]       Not tainted syzkaller #0
[  241.770050][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  241.779376][   T31] task:syz.0.17        state:D stack:24112 pid:6030  tgid:6030  ppid:5971   task_flags:0x400140 flags:0x00004004
[  241.792522][   T31] Call Trace:
[  241.795821][   T31]  <TASK>
[  241.798754][   T31]  __schedule+0x1798/0x4cc0
[  241.803369][   T31]  ? __pfx___schedule+0x10/0x10
[  241.808306][   T31]  ? do_raw_spin_lock+0x121/0x290
[  241.813495][   T31]  ? schedule+0x91/0x360
[  241.817747][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.822575][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.827354][   T31]  ? lock_release+0x4b/0x3e0
[  241.832089][   T31]  schedule+0x165/0x360
[  241.836261][   T31]  io_schedule+0x80/0xd0
[  241.840736][   T31]  folio_wait_bit_common+0x6b0/0xb90
[  241.846220][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.851060][   T31]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  241.857566][   T31]  ? __pfx_wake_page_function+0x10/0x10
[  241.863204][   T31]  ? unwind_next_frame+0xa5/0x2390
[  241.868322][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.873615][   T31]  ? unwind_next_frame+0xa5/0x2390
[  241.878745][   T31]  writeback_iter+0x8d8/0x12a0
[  241.883589][   T31]  iomap_writepages+0x14d/0x2d0
[  241.888448][   T31]  ? __pfx_iomap_writepages+0x10/0x10
[  241.894384][   T31]  ? folio_mark_accessed+0x42c/0x8b0
[  241.899703][   T31]  gfs2_writepages+0x177/0x250
[  241.905466][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  241.911817][   T31]  ? __pfx_gfs2_writepages+0x10/0x10
[  241.917137][   T31]  do_writepages+0x32e/0x550
[  241.921803][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.926608][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  241.932639][   T31]  filemap_fdatawrite+0x199/0x240
[  241.937689][   T31]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  241.943301][   T31]  ? rcu_is_watching+0x15/0xb0
[  241.948086][   T31]  ? do_raw_spin_unlock+0x122/0x240
[  241.954045][   T31]  gfs2_log_flush+0x966/0x24c0
[  241.959706][   T31]  ? __pfx_gfs2_log_flush+0x10/0x10
[  241.964980][   T31]  ? __pfx___up_read+0x10/0x10
[  241.969751][   T31]  gfs2_trans_end+0x37c/0x570
[  241.974989][   T31]  gfs2_page_mkwrite+0x14a8/0x1910
[  241.980118][   T31]  ? do_page_mkwrite+0x14d/0x310
[  241.982656][ T6777] loop1: detected capacity change from 0 to 32768
[  241.985162][   T31]  ? __pfx_gfs2_page_mkwrite+0x10/0x10
[  242.000546][   T31]  ? gfs2_fault+0x19a/0x1f0
[  242.005160][   T31]  ? do_page_mkwrite+0x14d/0x310
[  242.010523][   T31]  ? rcu_is_watching+0x15/0xb0
[  242.015535][ T6777] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.023339][   T31]  do_page_mkwrite+0x14d/0x310
[  242.028167][ T6777] CPU: 0 UID: 0 PID: 6777 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT(full) 
[  242.028191][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.028203][ T6777] Call Trace:
[  242.028210][ T6777]  <TASK>
[  242.028217][ T6777]  dump_stack_lvl+0x189/0x250
[  242.028241][ T6777]  ? __pfx_dump_stack_lvl+0x10/0x10
[  242.028259][ T6777]  ? __pfx__printk+0x10/0x10
[  242.028278][ T6777]  ? kernfs_root+0x1c/0x230
[  242.028296][ T6777]  ? kernfs_path_from_node+0x250/0x290
[  242.028311][ T6777]  ? kernfs_path_from_node+0x2f/0x290
[  242.028334][ T6777]  sysfs_create_dir_ns+0x259/0x280
[  242.028357][ T6777]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  242.028380][ T6777]  ? do_raw_spin_unlock+0x122/0x240
[  242.028399][ T6777]  kobject_add_internal+0x59f/0xb40
[  242.028423][ T6777]  kobject_init_and_add+0x125/0x190
[  242.028445][ T6777]  ? __pfx_kobject_init_and_add+0x10/0x10
[  242.028465][ T6777]  ? __raw_spin_lock_init+0x45/0x100
[  242.028482][ T6777]  ? __init_swait_queue_head+0xa9/0x150
[  242.028498][ T6777]  gfs2_sys_fs_add+0x234/0x450
[  242.028521][ T6777]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  242.028545][ T6777]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  242.028568][ T6777]  gfs2_fill_super+0x13c0/0x20d0
[  242.028593][ T6777]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.028612][ T6777]  ? sb_set_blocksize+0x104/0x180
[  242.028633][ T6777]  ? setup_bdev_super+0x4c1/0x5b0
[  242.028653][ T6777]  get_tree_bdev_flags+0x40e/0x4d0
[  242.028672][ T6777]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.028689][ T6777]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  242.028712][ T6777]  gfs2_get_tree+0x51/0x1e0
[  242.028731][ T6777]  vfs_get_tree+0x92/0x2b0
[  242.028749][ T6777]  do_new_mount+0x2a2/0xa30
[  242.028770][ T6777]  ? ns_capable+0x8a/0xf0
[  242.028790][ T6777]  ? __pfx_do_new_mount+0x10/0x10
[  242.028810][ T6777]  ? path_mount+0x61c/0xfe0
[  242.028828][ T6777]  ? user_path_at+0x44/0x60
[  242.028847][ T6777]  __se_sys_mount+0x317/0x410
[  242.028868][ T6777]  ? __pfx___se_sys_mount+0x10/0x10
[  242.028889][ T6777]  ? rcu_is_watching+0x15/0xb0
[  242.028911][ T6777]  ? __x64_sys_mount+0x20/0xc0
[  242.028931][ T6777]  do_syscall_64+0xfa/0xfa0
[  242.028951][ T6777]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.028967][ T6777]  ? clear_bhb_loop+0x60/0xb0
[  242.028984][ T6777]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.029000][ T6777] RIP: 0033:0x7f659f59038a
[  242.029015][ T6777] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[  242.029029][ T6777] RSP: 002b:00007ffe609b0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.029049][ T6777] RAX: ffffffffffffffda RBX: 00007ffe609b0bd0 RCX: 00007f659f59038a
[  242.029062][ T6777] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffe609b0b90
[  242.029074][ T6777] RBP: 000020000001f680 R08: 00007ffe609b0bd0 R09: 0000000000000094
[  242.029086][ T6777] R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
[  242.029098][ T6777] R13: 00007ffe609b0b90 R14: 000000000001f790 R15: 00002000000001c0
[  242.029118][ T6777]  </TASK>
[  242.029135][ T6777] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  242.040396][   T31]  __handle_mm_fault+0x1916/0x5400
[  242.048532][ T6777] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  242.059355][   T31]  ? __pfx___handle_mm_fault+0x10/0x10
[  242.360474][   T31]  ? rcu_is_watching+0x15/0xb0
[  242.365254][   T31]  ? lock_vma_under_rcu+0x3cb/0x450
[  242.370991][   T31]  ? __pfx_do_futex+0x10/0x10
[  242.375692][   T31]  ? __pfx_lock_vma_under_rcu+0x10/0x10
[  242.381351][   T31]  handle_mm_fault+0x40a/0x8e0
[  242.386484][   T31]  do_user_addr_fault+0xa81/0x1390
[  242.391926][   T31]  ? rcu_is_watching+0x15/0xb0
[  242.396720][   T31]  ? trace_page_fault_user+0x84/0x1e0
[  242.402164][   T31]  exc_page_fault+0x82/0x100
[  242.406789][   T31]  asm_exc_page_fault+0x26/0x30
[  242.411671][   T31] RIP: 0033:0x7fc0346550b3
[  242.416086][   T31] RSP: 002b:00007ffca3f33a50 EFLAGS: 00010246
[  242.422225][   T31] RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
[  242.430335][   T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055555a9713c8
[  242.438327][   T31] RBP: 00007ffca3f33b58 R08: 0000000000000000 R09: 0000000000000000
[  242.446460][   T31] R10: 0000000000000000 R11: 0000000000000000 R12: 00007fc0349b5fac
[  242.454487][   T31] R13: 00007fc0349b5fa0 R14: fffffffffffffffe R15: 0000000000000006
[  242.462532][   T31]  </TASK>
[  242.465800][   T31] INFO: lockdep is turned off.
[  242.471258][   T31] NMI backtrace for cpu 1
[  242.471276][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  242.471295][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.471306][   T31] Call Trace:
[  242.471313][   T31]  <TASK>
[  242.471320][   T31]  dump_stack_lvl+0x189/0x250
[  242.471345][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  242.471363][   T31]  ? __pfx__printk+0x10/0x10
[  242.471388][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  242.471411][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  242.471434][   T31]  ? __pfx__printk+0x10/0x10
[  242.471455][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  242.471478][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  242.471501][   T31]  watchdog+0xf60/0xfa0
[  242.471522][   T31]  ? watchdog+0x1e2/0xfa0
[  242.471541][   T31]  kthread+0x711/0x8a0
[  242.471560][   T31]  ? __pfx_watchdog+0x10/0x10
[  242.471577][   T31]  ? __pfx_kthread+0x10/0x10
[  242.471594][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  242.471611][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  242.471626][   T31]  ? __pfx_kthread+0x10/0x10
[  242.471642][   T31]  ret_from_fork+0x47c/0x820
[  242.471665][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  242.471690][   T31]  ? __switch_to_asm+0x39/0x70
[  242.471709][   T31]  ? __switch_to_asm+0x33/0x70
[  242.471728][   T31]  ? __pfx_kthread+0x10/0x10
[  242.471746][   T31]  ret_from_fork_asm+0x1a/0x30
[  242.471770][   T31]  </TASK>
[  242.471776][   T31] Sending NMI from CPU 1 to CPUs 0:
[  242.505255][ T6780] loop1: detected capacity change from 0 to 32768
[  242.506817][    C0] NMI backtrace for cpu 0
[  242.506830][    C0] CPU: 0 UID: 0 PID: 6780 Comm: syz.1.254 Not tainted syzkaller #0 PREEMPT(full) 
[  242.506849][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.506859][    C0] RIP: 0010:io_serial_in+0x77/0xc0
[  242.506881][    C0] Code: e8 1e 6e 6d fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 cf 17 d1 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[  242.506895][    C0] RSP: 0018:ffffc90004a1e978 EFLAGS: 00000006
[  242.506910][    C0] RAX: 1ffffffff3401505 RBX: 00000000000003f9 RCX: 0000000000000000
[  242.506921][    C0] RDX: 00000000000003f9 RSI: 0000000000000000 RDI: 0000000000000020
[  242.506931][    C0] RBP: ffffc90004a1eb50 R08: 0000000000000003 R09: 0000000000000004
[  242.506942][    C0] R10: dffffc0000000000 R11: ffffffff85532060 R12: dffffc0000000000
[  242.506954][    C0] R13: dffffc0000000000 R14: ffffffff9a00af20 R15: 0000000000000000
[  242.506966][    C0] FS:  0000555582683500(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000
[  242.506979][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  242.506991][    C0] CR2: 00007f65975ff000 CR3: 0000000079960000 CR4: 00000000003526f0
[  242.507006][    C0] Call Trace:
[  242.507012][    C0]  <TASK>
[  242.507021][    C0]  serial8250_console_write+0x581/0x1ba0
[  242.507040][    C0]  ? format_decode+0xd9/0xe30
[  242.507063][    C0]  ? __pfx_serial8250_console_write+0x10/0x10
[  242.507079][    C0]  ? console_flush_all+0x13a/0xc40
[  242.507095][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.507115][    C0]  ? lock_acquire+0x5f/0x360
[  242.507133][    C0]  ? do_raw_spin_unlock+0x122/0x240
[  242.507148][    C0]  ? console_flush_all+0x13a/0xc40
[  242.507163][    C0]  ? console_flush_all+0x13a/0xc40
[  242.507178][    C0]  console_flush_all+0x725/0xc40
[  242.507193][    C0]  ? console_flush_all+0x13a/0xc40
[  242.507210][    C0]  ? __pfx_console_flush_all+0x10/0x10
[  242.507228][    C0]  ? is_printk_cpu_sync_owner+0x32/0x40
[  242.507246][    C0]  console_unlock+0xc4/0x270
[  242.507271][    C0]  ? __pfx_console_unlock+0x10/0x10
[  242.507288][    C0]  ? vprintk_emit+0x444/0x7a0
[  242.507309][    C0]  ? vprintk_emit+0x444/0x7a0
[  242.507326][    C0]  ? vprintk_emit+0x444/0x7a0
[  242.507345][    C0]  vprintk_emit+0x5b7/0x7a0
[  242.507368][    C0]  ? vprintk_emit+0x444/0x7a0
[  242.507388][    C0]  ? __pfx_vprintk_emit+0x10/0x10
[  242.507407][    C0]  ? shmem_huge_global_enabled+0x174/0x3a0
[  242.507429][    C0]  _printk+0xcf/0x120
[  242.507449][    C0]  ? __pfx__printk+0x10/0x10
[  242.507469][    C0]  ? do_raw_spin_unlock+0x122/0x240
[  242.507486][    C0]  set_capacity_and_notify+0x208/0x2d0
[  242.507508][    C0]  ? __pfx_set_capacity_and_notify+0x10/0x10
[  242.507527][    C0]  ? __pfx_internal_create_group+0x10/0x10
[  242.507549][    C0]  loop_set_size+0x44/0xb0
[  242.507569][    C0]  loop_configure+0x9f4/0xe50
[  242.507586][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.507604][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.507625][    C0]  ? __pfx_loop_configure+0x10/0x10
[  242.507649][    C0]  ? __kernel_text_address+0xd/0x40
[  242.507666][    C0]  ? unwind_get_return_address+0x4d/0x90
[  242.507680][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  242.507699][    C0]  lo_ioctl+0x810/0x1b30
[  242.507717][    C0]  ? stack_trace_save+0x9c/0xe0
[  242.507732][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[  242.507747][    C0]  ? __pfx_lo_ioctl+0x10/0x10
[  242.507763][    C0]  ? stack_depot_save_flags+0x40/0x860
[  242.507783][    C0]  ? vsnprintf+0xe3a/0xf00
[  242.507802][    C0]  ? kasan_save_track+0x4f/0x80
[  242.507819][    C0]  ? kasan_save_track+0x3e/0x80
[  242.507833][    C0]  ? __kasan_save_free_info+0x46/0x50
[  242.507852][    C0]  ? __kasan_slab_free+0x5b/0x80
[  242.507866][    C0]  ? kfree+0x18e/0x440
[  242.507898][    C0]  ? tomoyo_check_open_permission+0x2c2/0x3b0
[  242.507916][    C0]  ? security_file_open+0xb1/0x270
[  242.507933][    C0]  ? do_dentry_open+0x384/0x13f0
[  242.507953][    C0]  ? vfs_open+0x3b/0x340
[  242.507970][    C0]  ? path_openat+0x2ee5/0x3830
[  242.507984][    C0]  ? do_filp_open+0x1fa/0x410
[  242.507998][    C0]  ? do_sys_openat2+0x121/0x1c0
[  242.508016][    C0]  ? __x64_sys_openat+0x138/0x170
[  242.508029][    C0]  ? do_syscall_64+0xfa/0xfa0
[  242.508045][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.508064][    C0]  ? __mutex_trylock_common+0x153/0x260
[  242.508086][    C0]  ? __pfx___mutex_trylock_common+0x10/0x10
[  242.508107][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508120][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508139][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508154][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508167][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508185][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508200][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508213][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508232][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508246][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508264][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508279][    C0]  ? unwind_next_frame+0xa5/0x2390
[  242.508292][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508311][    C0]  ? is_bpf_text_address+0x26/0x2b0
[  242.508329][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508348][    C0]  ? rcu_is_watching+0x15/0xb0
[  242.508371][    C0]  ? lock_release+0x4b/0x3e0
[  242.508387][    C0]  ? lock_release+0x4b/0x3e0
[  242.508405][    C0]  ? is_bpf_text_address+0x292/0x2b0
[  242.508423][    C0]  ? is_bpf_text_address+0x26/0x2b0
[  242.508441][    C0]  ? kernel_text_address+0xa5/0xe0
[  242.508458][    C0]  ? __kernel_text_address+0xd/0x40
[  242.508473][    C0]  ? unwind_get_return_address+0x4d/0x90
[  242.508487][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  242.508501][    C0]  ? arch_stack_walk+0xfc/0x150
[  242.508520][    C0]  ? stack_trace_save+0x9c/0xe0
[  242.508535][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[  242.508550][    C0]  ? stack_depot_save_flags+0x40/0x860
[  242.508570][    C0]  ? kasan_save_track+0x4f/0x80
[  242.508584][    C0]  ? kasan_save_track+0x3e/0x80
[  242.508599][    C0]  ? __kasan_save_free_info+0x46/0x50
[  242.508617][    C0]  ? __kasan_slab_free+0x5b/0x80
[  242.508632][    C0]  ? kfree+0x18e/0x440
[  242.508645][    C0]  ? tomoyo_path_number_perm+0x47a/0x5a0
[  242.508662][    C0]  ? security_file_ioctl+0xcb/0x2d0
[  242.508677][    C0]  ? __se_sys_ioctl+0x47/0x170
[  242.508691][    C0]  ? do_syscall_64+0xfa/0xfa0
[  242.508707][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.508729][    C0]  ? __asan_memset+0x22/0x50
[  242.508742][    C0]  ? blk_get_meta_cap+0x140/0x710
[  242.508769][    C0]  ? __pfx_blkdev_common_ioctl+0x10/0x10
[  242.508788][    C0]  ? do_vfs_ioctl+0xbe8/0x1430
[  242.508802][    C0]  ? tomoyo_path_number_perm+0x1bc/0x5a0
[  242.508820][    C0]  ? __pfx_do_vfs_ioctl+0x10/0x10
[  242.508846][    C0]  ? __pfx_lo_ioctl+0x10/0x10
[  242.508863][    C0]  blkdev_ioctl+0x5a8/0x6d0
[  242.508883][    C0]  ? __pfx_blkdev_ioctl+0x10/0x10
[  242.508902][    C0]  ? bpf_lsm_file_ioctl+0x9/0x20
[  242.508918][    C0]  ? __pfx_blkdev_ioctl+0x10/0x10
[  242.508936][    C0]  __se_sys_ioctl+0xfc/0x170
[  242.508952][    C0]  do_syscall_64+0xfa/0xfa0
[  242.508968][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.508983][    C0]  ? clear_bhb_loop+0x60/0xb0
[  242.508999][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.509014][    C0] RIP: 0033:0x7f659f58e7eb
[  242.509027][    C0] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
[  242.509040][    C0] RSP: 002b:00007ffe609b0aa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  242.509056][    C0] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f659f58e7eb
[  242.509068][    C0] RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004
[  242.509078][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000001f78a
[  242.509087][    C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  242.509097][    C0] R13: 00007ffe609b0bd0 R14: 00007ffe609b0b90 R15: 00007f6596600000
[  242.509114][    C0]  </TASK>
[  242.513059][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  242.513078][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  242.513098][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  242.513116][   T31] Call Trace:
[  242.513124][   T31]  <TASK>
[  242.513132][   T31]  dump_stack_lvl+0x99/0x250
[  242.513154][   T31]  ? __asan_memcpy+0x40/0x70
[  242.513171][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  242.513190][   T31]  ? __pfx__printk+0x10/0x10
[  242.513215][   T31]  vpanic+0x281/0x750
[  242.513235][   T31]  ? __pfx_vpanic+0x10/0x10
[  242.513252][   T31]  ? rcu_is_watching+0x15/0xb0
[  242.513274][   T31]  ? preempt_schedule+0xae/0xc0
[  242.513292][   T31]  ? preempt_schedule_common+0x83/0xd0
[  242.513312][   T31]  panic+0xb9/0xc0
[  242.513330][   T31]  ? __pfx_panic+0x10/0x10
[  242.513348][   T31]  ? preempt_schedule_thunk+0x16/0x30
[  242.513365][   T31]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  242.513389][   T31]  watchdog+0xf9f/0xfa0
[  242.513411][   T31]  ? watchdog+0x1e2/0xfa0
[  242.513431][   T31]  kthread+0x711/0x8a0
[  242.513448][   T31]  ? __pfx_watchdog+0x10/0x10
[  242.513466][   T31]  ? __pfx_kthread+0x10/0x10
[  242.513483][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  242.513501][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  242.513518][   T31]  ? __pfx_kthread+0x10/0x10
[  242.513535][   T31]  ret_from_fork+0x47c/0x820
[  242.513558][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  242.513581][   T31]  ? __switch_to_asm+0x39/0x70
[  242.513601][   T31]  ? __switch_to_asm+0x33/0x70
[  242.513620][   T31]  ? __pfx_kthread+0x10/0x10
[  242.513637][   T31]  ret_from_fork_asm+0x1a/0x30
[  242.513662][   T31]  </TASK>
[  242.514640][   T31] Kernel Offset: disabled