01] Call Trace:
[  242.090045][ T7601]  <TASK>
[  242.090054][ T7601]  dump_stack_lvl+0xe8/0x150
[  242.090088][ T7601]  sysfs_create_dir_ns+0x271/0x2a0
[  242.090117][ T7601]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  242.090144][ T7601]  ? do_raw_spin_unlock+0xf5/0x210
[  242.090172][ T7601]  kobject_add_internal+0x62b/0xd00
[  242.090207][ T7601]  kobject_init_and_add+0x12b/0x1a0
[  242.090241][ T7601]  ? __pfx_kobject_init_and_add+0x10/0x10
[  242.090278][ T7601]  ? __raw_spin_lock_init+0x45/0x100
[  242.090303][ T7601]  ? __init_swait_queue_head+0xa9/0x150
[  242.090330][ T7601]  gfs2_sys_fs_add+0x257/0x480
[  242.090358][ T7601]  ? is_dynamic_key+0x1ac/0x1c0
[  242.090384][ T7601]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  242.090421][ T7601]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  242.090458][ T7601]  gfs2_fill_super+0x13a7/0x21d0
[  242.090496][ T7601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.090524][ T7601]  ? sb_set_blocksize+0x155/0x240
[  242.090548][ T7601]  ? setup_bdev_super+0x4c1/0x5b0
[  242.090571][ T7601]  get_tree_bdev_flags+0x431/0x4f0
[  242.090592][ T7601]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.090614][ T7601]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  242.090632][ T7601]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  242.090661][ T7601]  gfs2_get_tree+0x51/0x1e0
[  242.090687][ T7601]  vfs_get_tree+0x92/0x2a0
[  242.090709][ T7601]  do_new_mount+0x341/0xd30
[  242.090731][ T7601]  ? apparmor_capable+0x126/0x170
[  242.090759][ T7601]  ? __pfx_do_new_mount+0x10/0x10
[  242.090783][ T7601]  ? ns_capable+0x89/0xe0
[  242.090829][ T7601]  ? user_path_at+0xd4/0x160
[  242.090857][ T7601]  __se_sys_mount+0x31d/0x420
[  242.090888][ T7601]  ? __pfx___se_sys_mount+0x10/0x10
[  242.090918][ T7601]  ? __x64_sys_mount+0x20/0xc0
[  242.090942][ T7601]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.090963][ T7601]  do_syscall_64+0x15f/0xf80
[  242.090986][ T7601]  ? trace_irq_disable+0x3b/0x140
[  242.091009][ T7601]  ? clear_bhb_loop+0x40/0x90
[  242.091033][ T7601]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.091052][ T7601] RIP: 0033:0x7f6fccf9b5ca
[  242.091070][ T7601] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  242.091087][ T7601] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.091109][ T7601] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  242.091124][ T7601] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  242.091138][ T7601] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  242.091152][ T7601] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  242.091165][ T7601] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  242.091196][ T7601]  </TASK>
[  242.091246][ T7601] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  242.441593][ T7601] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  242.500010][ T7607] Bluetooth: hci1: command 0x0406 tx timeout
[  242.507612][ T7607] Bluetooth: hci2: command 0x0406 tx timeout
[  242.514922][   T51] Bluetooth: hci0: command 0x0406 tx timeout
[  242.521501][ T7607] Bluetooth: hci3: command 0x0406 tx timeout
[  242.527580][   T51] Bluetooth: hci4: command 0x0406 tx timeout
[  242.725811][ T7611] loop2: detected capacity change from 0 to 32768
[  242.764893][ T7611] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  242.807667][ T7611] CPU: 1 UID: 0 PID: 7611 Comm: syz.2.196 Not tainted syzkaller #0 PREEMPT(full) 
[  242.807694][ T7611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  242.807707][ T7611] Call Trace:
[  242.807715][ T7611]  <TASK>
[  242.807724][ T7611]  dump_stack_lvl+0xe8/0x150
[  242.807757][ T7611]  sysfs_create_dir_ns+0x271/0x2a0
[  242.807787][ T7611]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  242.807814][ T7611]  ? do_raw_spin_unlock+0xf5/0x210
[  242.807841][ T7611]  kobject_add_internal+0x62b/0xd00
[  242.807878][ T7611]  kobject_init_and_add+0x12b/0x1a0
[  242.807910][ T7611]  ? __pfx_kobject_init_and_add+0x10/0x10
[  242.807939][ T7611]  ? __raw_spin_lock_init+0x45/0x100
[  242.807963][ T7611]  ? __init_swait_queue_head+0xa9/0x150
[  242.807989][ T7611]  gfs2_sys_fs_add+0x257/0x480
[  242.808016][ T7611]  ? is_dynamic_key+0x1ac/0x1c0
[  242.808043][ T7611]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  242.808079][ T7611]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  242.808116][ T7611]  gfs2_fill_super+0x13a7/0x21d0
[  242.808149][ T7611]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.808176][ T7611]  ? sb_set_blocksize+0x155/0x240
[  242.808200][ T7611]  ? setup_bdev_super+0x4c1/0x5b0
[  242.808224][ T7611]  get_tree_bdev_flags+0x431/0x4f0
[  242.808245][ T7611]  ? __pfx_gfs2_fill_super+0x10/0x10
[  242.808267][ T7611]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  242.808285][ T7611]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  242.808315][ T7611]  gfs2_get_tree+0x51/0x1e0
[  242.808341][ T7611]  vfs_get_tree+0x92/0x2a0
[  242.808363][ T7611]  do_new_mount+0x341/0xd30
[  242.808386][ T7611]  ? apparmor_capable+0x126/0x170
[  242.808414][ T7611]  ? __pfx_do_new_mount+0x10/0x10
[  242.808438][ T7611]  ? ns_capable+0x89/0xe0
[  242.808473][ T7611]  ? user_path_at+0xd4/0x160
[  242.808500][ T7611]  __se_sys_mount+0x31d/0x420
[  242.808530][ T7611]  ? __pfx___se_sys_mount+0x10/0x10
[  242.808558][ T7611]  ? __x64_sys_mount+0x20/0xc0
[  242.808579][ T7611]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.808599][ T7611]  do_syscall_64+0x15f/0xf80
[  242.808622][ T7611]  ? trace_irq_disable+0x3b/0x140
[  242.808646][ T7611]  ? clear_bhb_loop+0x40/0x90
[  242.808675][ T7611]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  242.808695][ T7611] RIP: 0033:0x7f48f8d9b5ca
[  242.808714][ T7611] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  242.808732][ T7611] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  242.808753][ T7611] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  242.808768][ T7611] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  242.808783][ T7611] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  242.808796][ T7611] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  242.808809][ T7611] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  242.808840][ T7611]  </TASK>
[  243.230060][ T7611] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.273039][ T7611] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.505508][ T7622] loop4: detected capacity change from 0 to 32768
[  243.548631][ T7622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.579418][ T7617] loop0: detected capacity change from 0 to 32768
[  243.599964][ T7622] CPU: 1 UID: 0 PID: 7622 Comm: syz.4.199 Not tainted syzkaller #0 PREEMPT(full) 
[  243.599989][ T7622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  243.600000][ T7622] Call Trace:
[  243.600008][ T7622]  <TASK>
[  243.600016][ T7622]  dump_stack_lvl+0xe8/0x150
[  243.600048][ T7622]  sysfs_create_dir_ns+0x271/0x2a0
[  243.600075][ T7622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  243.600100][ T7622]  ? do_raw_spin_unlock+0xf5/0x210
[  243.600128][ T7622]  kobject_add_internal+0x62b/0xd00
[  243.600161][ T7622]  kobject_init_and_add+0x12b/0x1a0
[  243.600189][ T7622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  243.600215][ T7622]  ? __raw_spin_lock_init+0x45/0x100
[  243.600237][ T7622]  ? __init_swait_queue_head+0xa9/0x150
[  243.600264][ T7622]  gfs2_sys_fs_add+0x257/0x480
[  243.600292][ T7622]  ? is_dynamic_key+0x1ac/0x1c0
[  243.600318][ T7622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  243.600352][ T7622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  243.600388][ T7622]  gfs2_fill_super+0x13a7/0x21d0
[  243.600425][ T7622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  243.600452][ T7622]  ? sb_set_blocksize+0x155/0x240
[  243.600476][ T7622]  ? setup_bdev_super+0x4c1/0x5b0
[  243.600498][ T7622]  get_tree_bdev_flags+0x431/0x4f0
[  243.600518][ T7622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  243.600538][ T7622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  243.600555][ T7622]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  243.600592][ T7622]  gfs2_get_tree+0x51/0x1e0
[  243.600619][ T7622]  vfs_get_tree+0x92/0x2a0
[  243.600641][ T7622]  do_new_mount+0x341/0xd30
[  243.600662][ T7622]  ? apparmor_capable+0x126/0x170
[  243.600690][ T7622]  ? __pfx_do_new_mount+0x10/0x10
[  243.600712][ T7622]  ? ns_capable+0x89/0xe0
[  243.600748][ T7622]  ? user_path_at+0xd4/0x160
[  243.600777][ T7622]  __se_sys_mount+0x31d/0x420
[  243.600808][ T7622]  ? __pfx___se_sys_mount+0x10/0x10
[  243.600838][ T7622]  ? __x64_sys_mount+0x20/0xc0
[  243.600861][ T7622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  243.600882][ T7622]  do_syscall_64+0x15f/0xf80
[  243.600904][ T7622]  ? trace_irq_disable+0x3b/0x140
[  243.600927][ T7622]  ? clear_bhb_loop+0x40/0x90
[  243.600951][ T7622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  243.600970][ T7622] RIP: 0033:0x7f91c659b5ca
[  243.600988][ T7622] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  243.601004][ T7622] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  243.601024][ T7622] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  243.601038][ T7622] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  243.601051][ T7622] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  243.601065][ T7622] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  243.601077][ T7622] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  243.601109][ T7622]  </TASK>
[  243.601136][ T7622] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  243.719929][ T7615] loop5: detected capacity change from 0 to 32768
[  243.942131][ T7617] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  243.950667][ T7622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  243.962312][ T7615] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  244.015396][ T7615] CPU: 1 UID: 0 PID: 7615 Comm: syz.5.197 Not tainted syzkaller #0 PREEMPT(full) 
[  244.015424][ T7615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  244.015437][ T7615] Call Trace:
[  244.015445][ T7615]  <TASK>
[  244.015454][ T7615]  dump_stack_lvl+0xe8/0x150
[  244.015488][ T7615]  sysfs_create_dir_ns+0x271/0x2a0
[  244.015518][ T7615]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  244.015556][ T7615]  ? do_raw_spin_unlock+0xf5/0x210
[  244.015583][ T7615]  kobject_add_internal+0x62b/0xd00
[  244.015618][ T7615]  kobject_init_and_add+0x12b/0x1a0
[  244.015650][ T7615]  ? __pfx_kobject_init_and_add+0x10/0x10
[  244.015678][ T7615]  ? __raw_spin_lock_init+0x45/0x100
[  244.015702][ T7615]  ? __init_swait_queue_head+0xa9/0x150
[  244.015728][ T7615]  gfs2_sys_fs_add+0x257/0x480
[  244.015755][ T7615]  ? is_dynamic_key+0x1ac/0x1c0
[  244.015781][ T7615]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  244.015816][ T7615]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  244.015852][ T7615]  gfs2_fill_super+0x13a7/0x21d0
[  244.015891][ T7615]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.015918][ T7615]  ? sb_set_blocksize+0x155/0x240
[  244.015943][ T7615]  ? setup_bdev_super+0x4c1/0x5b0
[  244.015966][ T7615]  get_tree_bdev_flags+0x431/0x4f0
[  244.015986][ T7615]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.016009][ T7615]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  244.016026][ T7615]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  244.016055][ T7615]  gfs2_get_tree+0x51/0x1e0
[  244.016081][ T7615]  vfs_get_tree+0x92/0x2a0
[  244.016103][ T7615]  do_new_mount+0x341/0xd30
[  244.016125][ T7615]  ? apparmor_capable+0x126/0x170
[  244.016153][ T7615]  ? __pfx_do_new_mount+0x10/0x10
[  244.016178][ T7615]  ? ns_capable+0x89/0xe0
[  244.016214][ T7615]  ? user_path_at+0xd4/0x160
[  244.016243][ T7615]  __se_sys_mount+0x31d/0x420
[  244.016272][ T7615]  ? __pfx___se_sys_mount+0x10/0x10
[  244.016303][ T7615]  ? __x64_sys_mount+0x20/0xc0
[  244.016326][ T7615]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.016347][ T7615]  do_syscall_64+0x15f/0xf80
[  244.016370][ T7615]  ? trace_irq_disable+0x3b/0x140
[  244.016393][ T7615]  ? clear_bhb_loop+0x40/0x90
[  244.016416][ T7615]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.016435][ T7615] RIP: 0033:0x7fd84279b5ca
[  244.016454][ T7615] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  244.016471][ T7615] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.016492][ T7615] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  244.016507][ T7615] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  244.016521][ T7615] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  244.016534][ T7615] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  244.016554][ T7615] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  244.016584][ T7615]  </TASK>
[  244.016609][ T7615] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.095061][ T7617] CPU: 0 UID: 0 PID: 7617 Comm: syz.0.198 Not tainted syzkaller #0 PREEMPT(full) 
[  244.095087][ T7617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  244.095100][ T7617] Call Trace:
[  244.095108][ T7617]  <TASK>
[  244.095116][ T7617]  dump_stack_lvl+0xe8/0x150
[  244.095148][ T7617]  sysfs_create_dir_ns+0x271/0x2a0
[  244.095177][ T7617]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  244.095203][ T7617]  ? do_raw_spin_unlock+0xf5/0x210
[  244.095229][ T7617]  kobject_add_internal+0x62b/0xd00
[  244.095264][ T7617]  kobject_init_and_add+0x12b/0x1a0
[  244.095295][ T7617]  ? __pfx_kobject_init_and_add+0x10/0x10
[  244.095323][ T7617]  ? __raw_spin_lock_init+0x45/0x100
[  244.095346][ T7617]  ? __init_swait_queue_head+0xa9/0x150
[  244.095371][ T7617]  gfs2_sys_fs_add+0x257/0x480
[  244.095398][ T7617]  ? is_dynamic_key+0x1ac/0x1c0
[  244.095424][ T7617]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  244.095457][ T7617]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  244.095492][ T7617]  gfs2_fill_super+0x13a7/0x21d0
[  244.095528][ T7617]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.095554][ T7617]  ? sb_set_blocksize+0x155/0x240
[  244.095578][ T7617]  ? setup_bdev_super+0x4c1/0x5b0
[  244.095600][ T7617]  get_tree_bdev_flags+0x431/0x4f0
[  244.095620][ T7617]  ? __pfx_gfs2_fill_super+0x10/0x10
[  244.095641][ T7617]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  244.095658][ T7617]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  244.095687][ T7617]  gfs2_get_tree+0x51/0x1e0
[  244.095713][ T7617]  vfs_get_tree+0x92/0x2a0
[  244.095733][ T7617]  do_new_mount+0x341/0xd30
[  244.095755][ T7617]  ? apparmor_capable+0x126/0x170
[  244.095782][ T7617]  ? __pfx_do_new_mount+0x10/0x10
[  244.095810][ T7617]  ? ns_capable+0x89/0xe0
[  244.095845][ T7617]  ? user_path_at+0xd4/0x160
[  244.095873][ T7617]  __se_sys_mount+0x31d/0x420
[  244.095902][ T7617]  ? __pfx___se_sys_mount+0x10/0x10
[  244.095932][ T7617]  ? __x64_sys_mount+0x20/0xc0
[  244.095954][ T7617]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.095974][ T7617]  do_syscall_64+0x15f/0xf80
[  244.095996][ T7617]  ? trace_irq_disable+0x3b/0x140
[  244.096018][ T7617]  ? clear_bhb_loop+0x40/0x90
[  244.096039][ T7617]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  244.096057][ T7617] RIP: 0033:0x7f73fed9b5ca
[  244.096075][ T7617] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  244.096091][ T7617] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  244.096112][ T7617] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  244.096126][ T7617] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  244.096139][ T7617] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  244.096152][ T7617] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  244.096165][ T7617] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  244.096198][ T7617]  </TASK>
2026/03/28 19:50:59 executed programs: 195
[  244.096246][ T7617] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  244.413174][ T7615] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  244.508224][ T7617] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.183851][ T7634] loop2: detected capacity change from 0 to 32768
[  245.222667][ T7634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.246170][ T7634] CPU: 1 UID: 0 PID: 7634 Comm: syz.2.201 Not tainted syzkaller #0 PREEMPT(full) 
[  245.246198][ T7634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  245.246210][ T7634] Call Trace:
[  245.246218][ T7634]  <TASK>
[  245.246228][ T7634]  dump_stack_lvl+0xe8/0x150
[  245.246262][ T7634]  sysfs_create_dir_ns+0x271/0x2a0
[  245.246291][ T7634]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  245.246318][ T7634]  ? do_raw_spin_unlock+0xf5/0x210
[  245.246345][ T7634]  kobject_add_internal+0x62b/0xd00
[  245.246382][ T7634]  kobject_init_and_add+0x12b/0x1a0
[  245.246422][ T7634]  ? __pfx_kobject_init_and_add+0x10/0x10
[  245.246449][ T7634]  ? __raw_spin_lock_init+0x45/0x100
[  245.246471][ T7634]  ? __init_swait_queue_head+0xa9/0x150
[  245.246494][ T7634]  gfs2_sys_fs_add+0x257/0x480
[  245.246523][ T7634]  ? is_dynamic_key+0x1ac/0x1c0
[  245.246549][ T7634]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  245.246584][ T7634]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  245.246619][ T7634]  gfs2_fill_super+0x13a7/0x21d0
[  245.246657][ T7634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.246684][ T7634]  ? sb_set_blocksize+0x155/0x240
[  245.246709][ T7634]  ? setup_bdev_super+0x4c1/0x5b0
[  245.246731][ T7634]  get_tree_bdev_flags+0x431/0x4f0
[  245.246752][ T7634]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.246774][ T7634]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  245.246792][ T7634]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  245.246821][ T7634]  gfs2_get_tree+0x51/0x1e0
[  245.246846][ T7634]  vfs_get_tree+0x92/0x2a0
[  245.246868][ T7634]  do_new_mount+0x341/0xd30
[  245.246889][ T7634]  ? apparmor_capable+0x126/0x170
[  245.246918][ T7634]  ? __pfx_do_new_mount+0x10/0x10
[  245.246943][ T7634]  ? ns_capable+0x89/0xe0
[  245.246979][ T7634]  ? user_path_at+0xd4/0x160
[  245.247005][ T7634]  __se_sys_mount+0x31d/0x420
[  245.247034][ T7634]  ? __pfx___se_sys_mount+0x10/0x10
[  245.247065][ T7634]  ? __x64_sys_mount+0x20/0xc0
[  245.247088][ T7634]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.247109][ T7634]  do_syscall_64+0x15f/0xf80
[  245.247132][ T7634]  ? trace_irq_disable+0x3b/0x140
[  245.247155][ T7634]  ? clear_bhb_loop+0x40/0x90
[  245.247178][ T7634]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.247197][ T7634] RIP: 0033:0x7f48f8d9b5ca
[  245.247218][ T7634] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  245.247235][ T7634] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.247255][ T7634] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  245.247269][ T7634] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  245.247283][ T7634] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  245.247297][ T7634] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  245.247310][ T7634] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  245.247342][ T7634]  </TASK>
[  245.247409][ T7634] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.253834][ T7627] loop1: detected capacity change from 0 to 32768
[  245.299037][ T7634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  245.545678][ T7627] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  245.584405][ T7627] CPU: 1 UID: 0 PID: 7627 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT(full) 
[  245.584445][ T7627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  245.584456][ T7627] Call Trace:
[  245.584464][ T7627]  <TASK>
[  245.584472][ T7627]  dump_stack_lvl+0xe8/0x150
[  245.584503][ T7627]  sysfs_create_dir_ns+0x271/0x2a0
[  245.584529][ T7627]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  245.584552][ T7627]  ? do_raw_spin_unlock+0xf5/0x210
[  245.584577][ T7627]  kobject_add_internal+0x62b/0xd00
[  245.584610][ T7627]  kobject_init_and_add+0x12b/0x1a0
[  245.584639][ T7627]  ? __pfx_kobject_init_and_add+0x10/0x10
[  245.584664][ T7627]  ? __raw_spin_lock_init+0x45/0x100
[  245.584684][ T7627]  ? __init_swait_queue_head+0xa9/0x150
[  245.584763][ T7627]  gfs2_sys_fs_add+0x257/0x480
[  245.584790][ T7627]  ? is_dynamic_key+0x1ac/0x1c0
[  245.584813][ T7627]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  245.584844][ T7627]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  245.584876][ T7627]  gfs2_fill_super+0x13a7/0x21d0
[  245.584910][ T7627]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.584934][ T7627]  ? sb_set_blocksize+0x155/0x240
[  245.584955][ T7627]  ? setup_bdev_super+0x4c1/0x5b0
[  245.584975][ T7627]  get_tree_bdev_flags+0x431/0x4f0
[  245.584994][ T7627]  ? __pfx_gfs2_fill_super+0x10/0x10
[  245.585013][ T7627]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  245.585028][ T7627]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  245.585054][ T7627]  gfs2_get_tree+0x51/0x1e0
[  245.585086][ T7627]  vfs_get_tree+0x92/0x2a0
[  245.585109][ T7627]  do_new_mount+0x341/0xd30
[  245.585129][ T7627]  ? apparmor_capable+0x126/0x170
[  245.585153][ T7627]  ? __pfx_do_new_mount+0x10/0x10
[  245.585174][ T7627]  ? ns_capable+0x89/0xe0
[  245.585206][ T7627]  ? user_path_at+0xd4/0x160
[  245.585232][ T7627]  __se_sys_mount+0x31d/0x420
[  245.585270][ T7627]  ? __pfx___se_sys_mount+0x10/0x10
[  245.585297][ T7627]  ? __x64_sys_mount+0x20/0xc0
[  245.585317][ T7627]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.585336][ T7627]  do_syscall_64+0x15f/0xf80
[  245.585358][ T7627]  ? trace_irq_disable+0x3b/0x140
[  245.585442][ T7627]  ? clear_bhb_loop+0x40/0x90
[  245.585464][ T7627]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  245.585481][ T7627] RIP: 0033:0x7f6fccf9b5ca
[  245.585498][ T7627] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  245.585514][ T7627] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  245.585538][ T7627] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  245.585551][ T7627] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  245.585563][ T7627] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  245.585575][ T7627] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  245.585587][ T7627] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  245.585615][ T7627]  </TASK>
[  245.585655][ T7627] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  245.906138][ T7627] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.413487][ T7641] loop5: detected capacity change from 0 to 32768
[  246.453370][ T7641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.489780][ T7641] CPU: 1 UID: 0 PID: 7641 Comm: syz.5.202 Not tainted syzkaller #0 PREEMPT(full) 
[  246.489807][ T7641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  246.489819][ T7641] Call Trace:
[  246.489827][ T7641]  <TASK>
[  246.489835][ T7641]  dump_stack_lvl+0xe8/0x150
[  246.489870][ T7641]  sysfs_create_dir_ns+0x271/0x2a0
[  246.489896][ T7641]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  246.489919][ T7641]  ? do_raw_spin_unlock+0xf5/0x210
[  246.489944][ T7641]  kobject_add_internal+0x62b/0xd00
[  246.489975][ T7641]  kobject_init_and_add+0x12b/0x1a0
[  246.490007][ T7641]  ? __pfx_kobject_init_and_add+0x10/0x10
[  246.490034][ T7641]  ? __raw_spin_lock_init+0x45/0x100
[  246.490057][ T7641]  ? __init_swait_queue_head+0xa9/0x150
[  246.490082][ T7641]  gfs2_sys_fs_add+0x257/0x480
[  246.490108][ T7641]  ? is_dynamic_key+0x1ac/0x1c0
[  246.490132][ T7641]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  246.490167][ T7641]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  246.490202][ T7641]  gfs2_fill_super+0x13a7/0x21d0
[  246.490240][ T7641]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.490267][ T7641]  ? sb_set_blocksize+0x155/0x240
[  246.490291][ T7641]  ? setup_bdev_super+0x4c1/0x5b0
[  246.490313][ T7641]  get_tree_bdev_flags+0x431/0x4f0
[  246.490334][ T7641]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.490356][ T7641]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  246.490373][ T7641]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  246.490411][ T7641]  gfs2_get_tree+0x51/0x1e0
[  246.490436][ T7641]  vfs_get_tree+0x92/0x2a0
[  246.490459][ T7641]  do_new_mount+0x341/0xd30
[  246.490481][ T7641]  ? apparmor_capable+0x126/0x170
[  246.490509][ T7641]  ? __pfx_do_new_mount+0x10/0x10
[  246.490532][ T7641]  ? ns_capable+0x89/0xe0
[  246.490569][ T7641]  ? user_path_at+0xd4/0x160
[  246.490598][ T7641]  __se_sys_mount+0x31d/0x420
[  246.490628][ T7641]  ? __pfx___se_sys_mount+0x10/0x10
[  246.490656][ T7641]  ? __x64_sys_mount+0x20/0xc0
[  246.490677][ T7641]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.490697][ T7641]  do_syscall_64+0x15f/0xf80
[  246.490721][ T7641]  ? trace_irq_disable+0x3b/0x140
[  246.490743][ T7641]  ? clear_bhb_loop+0x40/0x90
[  246.490767][ T7641]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.490786][ T7641] RIP: 0033:0x7fd84279b5ca
[  246.490804][ T7641] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  246.490821][ T7641] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.490842][ T7641] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  246.490856][ T7641] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  246.490870][ T7641] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  246.490883][ T7641] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  246.490896][ T7641] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  246.490927][ T7641]  </TASK>
[  246.490952][ T7641] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  246.749169][ T7643] loop0: detected capacity change from 0 to 32768
[  246.783685][ T7643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  246.788313][ T7641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  246.821680][ T7643] CPU: 1 UID: 0 PID: 7643 Comm: syz.0.203 Not tainted syzkaller #0 PREEMPT(full) 
[  246.821707][ T7643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  246.821719][ T7643] Call Trace:
[  246.821728][ T7643]  <TASK>
[  246.821737][ T7643]  dump_stack_lvl+0xe8/0x150
[  246.821771][ T7643]  sysfs_create_dir_ns+0x271/0x2a0
[  246.821801][ T7643]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  246.821828][ T7643]  ? do_raw_spin_unlock+0xf5/0x210
[  246.821854][ T7643]  kobject_add_internal+0x62b/0xd00
[  246.821896][ T7643]  kobject_init_and_add+0x12b/0x1a0
[  246.821928][ T7643]  ? __pfx_kobject_init_and_add+0x10/0x10
[  246.821956][ T7643]  ? __raw_spin_lock_init+0x45/0x100
[  246.821981][ T7643]  ? __init_swait_queue_head+0xa9/0x150
[  246.822008][ T7643]  gfs2_sys_fs_add+0x257/0x480
[  246.822034][ T7643]  ? is_dynamic_key+0x1ac/0x1c0
[  246.822061][ T7643]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  246.822096][ T7643]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  246.822151][ T7643]  gfs2_fill_super+0x13a7/0x21d0
[  246.822190][ T7643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.822217][ T7643]  ? sb_set_blocksize+0x155/0x240
[  246.822242][ T7643]  ? setup_bdev_super+0x4c1/0x5b0
[  246.822265][ T7643]  get_tree_bdev_flags+0x431/0x4f0
[  246.822292][ T7643]  ? __pfx_gfs2_fill_super+0x10/0x10
[  246.822314][ T7643]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  246.822332][ T7643]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  246.822361][ T7643]  gfs2_get_tree+0x51/0x1e0
[  246.822387][ T7643]  vfs_get_tree+0x92/0x2a0
[  246.822408][ T7643]  do_new_mount+0x341/0xd30
[  246.822430][ T7643]  ? apparmor_capable+0x126/0x170
[  246.822459][ T7643]  ? __pfx_do_new_mount+0x10/0x10
[  246.822482][ T7643]  ? ns_capable+0x89/0xe0
[  246.822519][ T7643]  ? user_path_at+0xd4/0x160
[  246.822547][ T7643]  __se_sys_mount+0x31d/0x420
[  246.822577][ T7643]  ? __pfx___se_sys_mount+0x10/0x10
[  246.822607][ T7643]  ? __x64_sys_mount+0x20/0xc0
[  246.822631][ T7643]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.822652][ T7643]  do_syscall_64+0x15f/0xf80
[  246.822675][ T7643]  ? trace_irq_disable+0x3b/0x140
[  246.822696][ T7643]  ? clear_bhb_loop+0x40/0x90
[  246.822717][ T7643]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  246.822733][ T7643] RIP: 0033:0x7f73fed9b5ca
[  246.822749][ T7643] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  246.822768][ T7643] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  246.822787][ T7643] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  246.822801][ T7643] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  246.822815][ T7643] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  246.822827][ T7643] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  246.822837][ T7643] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  246.822861][ T7643]  </TASK>
[  246.822919][ T7643] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.139155][ T7643] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.226204][ T7647] loop4: detected capacity change from 0 to 32768
[  247.288970][ T7647] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.327642][ T7647] CPU: 0 UID: 0 PID: 7647 Comm: syz.4.204 Not tainted syzkaller #0 PREEMPT(full) 
[  247.327669][ T7647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  247.327681][ T7647] Call Trace:
[  247.327689][ T7647]  <TASK>
[  247.327698][ T7647]  dump_stack_lvl+0xe8/0x150
[  247.327732][ T7647]  sysfs_create_dir_ns+0x271/0x2a0
[  247.327761][ T7647]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  247.327788][ T7647]  ? do_raw_spin_unlock+0xf5/0x210
[  247.327814][ T7647]  kobject_add_internal+0x62b/0xd00
[  247.327847][ T7647]  kobject_init_and_add+0x12b/0x1a0
[  247.327878][ T7647]  ? __pfx_kobject_init_and_add+0x10/0x10
[  247.327905][ T7647]  ? __raw_spin_lock_init+0x45/0x100
[  247.327929][ T7647]  ? __init_swait_queue_head+0xa9/0x150
[  247.327955][ T7647]  gfs2_sys_fs_add+0x257/0x480
[  247.327982][ T7647]  ? is_dynamic_key+0x1ac/0x1c0
[  247.328009][ T7647]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  247.328044][ T7647]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  247.328079][ T7647]  gfs2_fill_super+0x13a7/0x21d0
[  247.328119][ T7647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.328145][ T7647]  ? sb_set_blocksize+0x155/0x240
[  247.328169][ T7647]  ? setup_bdev_super+0x4c1/0x5b0
[  247.328189][ T7647]  get_tree_bdev_flags+0x431/0x4f0
[  247.328217][ T7647]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.328239][ T7647]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  247.328257][ T7647]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  247.328283][ T7647]  gfs2_get_tree+0x51/0x1e0
[  247.328306][ T7647]  vfs_get_tree+0x92/0x2a0
[  247.328329][ T7647]  do_new_mount+0x341/0xd30
[  247.328351][ T7647]  ? apparmor_capable+0x126/0x170
[  247.328379][ T7647]  ? __pfx_do_new_mount+0x10/0x10
[  247.328402][ T7647]  ? ns_capable+0x89/0xe0
[  247.328435][ T7647]  ? user_path_at+0xd4/0x160
[  247.328461][ T7647]  __se_sys_mount+0x31d/0x420
[  247.328491][ T7647]  ? __pfx___se_sys_mount+0x10/0x10
[  247.328521][ T7647]  ? __x64_sys_mount+0x20/0xc0
[  247.328541][ T7647]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.328560][ T7647]  do_syscall_64+0x15f/0xf80
[  247.328582][ T7647]  ? trace_irq_disable+0x3b/0x140
[  247.328605][ T7647]  ? clear_bhb_loop+0x40/0x90
[  247.328626][ T7647]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.328644][ T7647] RIP: 0033:0x7f91c659b5ca
[  247.328662][ T7647] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  247.328678][ T7647] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.328699][ T7647] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  247.328713][ T7647] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  247.328726][ T7647] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  247.328739][ T7647] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  247.328752][ T7647] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  247.328783][ T7647]  </TASK>
[  247.680297][ T7647] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  247.759273][ T7647] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  247.835997][ T7655] loop2: detected capacity change from 0 to 32768
[  247.894797][ T7655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  247.904151][ T7655] CPU: 0 UID: 0 PID: 7655 Comm: syz.2.205 Not tainted syzkaller #0 PREEMPT(full) 
[  247.904176][ T7655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  247.904188][ T7655] Call Trace:
[  247.904197][ T7655]  <TASK>
[  247.904205][ T7655]  dump_stack_lvl+0xe8/0x150
[  247.904237][ T7655]  sysfs_create_dir_ns+0x271/0x2a0
[  247.904264][ T7655]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  247.904290][ T7655]  ? do_raw_spin_unlock+0xf5/0x210
[  247.904317][ T7655]  kobject_add_internal+0x62b/0xd00
[  247.904351][ T7655]  kobject_init_and_add+0x12b/0x1a0
[  247.904382][ T7655]  ? __pfx_kobject_init_and_add+0x10/0x10
[  247.904410][ T7655]  ? __raw_spin_lock_init+0x45/0x100
[  247.904434][ T7655]  ? __init_swait_queue_head+0xa9/0x150
[  247.904460][ T7655]  gfs2_sys_fs_add+0x257/0x480
[  247.904486][ T7655]  ? is_dynamic_key+0x1ac/0x1c0
[  247.904513][ T7655]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  247.904549][ T7655]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  247.904585][ T7655]  gfs2_fill_super+0x13a7/0x21d0
[  247.904622][ T7655]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.904648][ T7655]  ? sb_set_blocksize+0x155/0x240
[  247.904671][ T7655]  ? setup_bdev_super+0x4c1/0x5b0
[  247.904693][ T7655]  get_tree_bdev_flags+0x431/0x4f0
[  247.904713][ T7655]  ? __pfx_gfs2_fill_super+0x10/0x10
[  247.904735][ T7655]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  247.904752][ T7655]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  247.904781][ T7655]  gfs2_get_tree+0x51/0x1e0
[  247.904808][ T7655]  vfs_get_tree+0x92/0x2a0
[  247.904828][ T7655]  do_new_mount+0x341/0xd30
[  247.904850][ T7655]  ? apparmor_capable+0x126/0x170
[  247.904878][ T7655]  ? __pfx_do_new_mount+0x10/0x10
[  247.904901][ T7655]  ? ns_capable+0x89/0xe0
[  247.904936][ T7655]  ? user_path_at+0xd4/0x160
[  247.904965][ T7655]  __se_sys_mount+0x31d/0x420
[  247.904995][ T7655]  ? __pfx___se_sys_mount+0x10/0x10
[  247.905024][ T7655]  ? __x64_sys_mount+0x20/0xc0
[  247.905047][ T7655]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.905068][ T7655]  do_syscall_64+0x15f/0xf80
[  247.905091][ T7655]  ? trace_irq_disable+0x3b/0x140
[  247.905113][ T7655]  ? clear_bhb_loop+0x40/0x90
[  247.905135][ T7655]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  247.905161][ T7655] RIP: 0033:0x7f48f8d9b5ca
[  247.905178][ T7655] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  247.905193][ T7655] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  247.905214][ T7655] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  247.905227][ T7655] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  247.905240][ T7655] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  247.905254][ T7655] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  247.905267][ T7655] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  247.905298][ T7655]  </TASK>
[  247.905324][ T7655] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  248.246659][ T7655] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.042364][ T7665] loop0: detected capacity change from 0 to 32768
[  249.075747][ T7665] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.091752][ T7654] loop1: detected capacity change from 0 to 32768
[  249.110254][ T7654] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.112545][ T7665] CPU: 1 UID: 0 PID: 7665 Comm: syz.0.208 Not tainted syzkaller #0 PREEMPT(full) 
[  249.112570][ T7665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  249.112582][ T7665] Call Trace:
[  249.112590][ T7665]  <TASK>
[  249.112598][ T7665]  dump_stack_lvl+0xe8/0x150
[  249.112630][ T7665]  sysfs_create_dir_ns+0x271/0x2a0
[  249.112658][ T7665]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.112684][ T7665]  ? do_raw_spin_unlock+0xf5/0x210
[  249.112711][ T7665]  kobject_add_internal+0x62b/0xd00
[  249.112746][ T7665]  kobject_init_and_add+0x12b/0x1a0
[  249.112778][ T7665]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.112805][ T7665]  ? __raw_spin_lock_init+0x45/0x100
[  249.112829][ T7665]  ? __init_swait_queue_head+0xa9/0x150
[  249.112854][ T7665]  gfs2_sys_fs_add+0x257/0x480
[  249.112881][ T7665]  ? is_dynamic_key+0x1ac/0x1c0
[  249.112907][ T7665]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.112941][ T7665]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.112974][ T7665]  gfs2_fill_super+0x13a7/0x21d0
[  249.113011][ T7665]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.113037][ T7665]  ? sb_set_blocksize+0x155/0x240
[  249.113068][ T7665]  ? setup_bdev_super+0x4c1/0x5b0
[  249.113089][ T7665]  get_tree_bdev_flags+0x431/0x4f0
[  249.113109][ T7665]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.113131][ T7665]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.113148][ T7665]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  249.113176][ T7665]  gfs2_get_tree+0x51/0x1e0
[  249.113201][ T7665]  vfs_get_tree+0x92/0x2a0
[  249.113221][ T7665]  do_new_mount+0x341/0xd30
[  249.113242][ T7665]  ? apparmor_capable+0x126/0x170
[  249.113269][ T7665]  ? __pfx_do_new_mount+0x10/0x10
[  249.113292][ T7665]  ? ns_capable+0x89/0xe0
[  249.113326][ T7665]  ? user_path_at+0xd4/0x160
[  249.113353][ T7665]  __se_sys_mount+0x31d/0x420
[  249.113382][ T7665]  ? __pfx___se_sys_mount+0x10/0x10
[  249.113411][ T7665]  ? __x64_sys_mount+0x20/0xc0
[  249.113434][ T7665]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.113454][ T7665]  do_syscall_64+0x15f/0xf80
[  249.113476][ T7665]  ? trace_irq_disable+0x3b/0x140
[  249.113498][ T7665]  ? clear_bhb_loop+0x40/0x90
[  249.113521][ T7665]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.113539][ T7665] RIP: 0033:0x7f73fed9b5ca
[  249.113556][ T7665] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  249.113573][ T7665] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.113593][ T7665] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  249.113608][ T7665] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  249.113621][ T7665] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  249.113633][ T7665] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  249.113645][ T7665] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  249.113675][ T7665]  </TASK>
[  249.113698][ T7665] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.128194][ T7654] CPU: 0 UID: 0 PID: 7654 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT(full) 
[  249.128219][ T7654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  249.128231][ T7654] Call Trace:
[  249.128239][ T7654]  <TASK>
[  249.128246][ T7654]  dump_stack_lvl+0xe8/0x150
[  249.128279][ T7654]  sysfs_create_dir_ns+0x271/0x2a0
[  249.128314][ T7654]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.128340][ T7654]  ? do_raw_spin_unlock+0xf5/0x210
[  249.128367][ T7654]  kobject_add_internal+0x62b/0xd00
[  249.128403][ T7654]  kobject_init_and_add+0x12b/0x1a0
[  249.128434][ T7654]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.128461][ T7654]  ? __raw_spin_lock_init+0x45/0x100
[  249.128485][ T7654]  ? __init_swait_queue_head+0xa9/0x150
[  249.128510][ T7654]  gfs2_sys_fs_add+0x257/0x480
[  249.128536][ T7654]  ? is_dynamic_key+0x1ac/0x1c0
[  249.128562][ T7654]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.128596][ T7654]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.128631][ T7654]  gfs2_fill_super+0x13a7/0x21d0
[  249.128668][ T7654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.128694][ T7654]  ? sb_set_blocksize+0x155/0x240
[  249.128718][ T7654]  ? setup_bdev_super+0x4c1/0x5b0
[  249.128739][ T7654]  get_tree_bdev_flags+0x431/0x4f0
[  249.128759][ T7654]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.128781][ T7654]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.128797][ T7654]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  249.128826][ T7654]  gfs2_get_tree+0x51/0x1e0
[  249.128850][ T7654]  vfs_get_tree+0x92/0x2a0
[  249.128871][ T7654]  do_new_mount+0x341/0xd30
[  249.128892][ T7654]  ? apparmor_capable+0x126/0x170
[  249.128920][ T7654]  ? __pfx_do_new_mount+0x10/0x10
[  249.128942][ T7654]  ? ns_capable+0x89/0xe0
[  249.128977][ T7654]  ? user_path_at+0xd4/0x160
[  249.129004][ T7654]  __se_sys_mount+0x31d/0x420
[  249.129033][ T7654]  ? __pfx___se_sys_mount+0x10/0x10
[  249.129062][ T7654]  ? __x64_sys_mount+0x20/0xc0
[  249.129084][ T7654]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.129104][ T7654]  do_syscall_64+0x15f/0xf80
[  249.129126][ T7654]  ? trace_irq_disable+0x3b/0x140
[  249.129148][ T7654]  ? clear_bhb_loop+0x40/0x90
[  249.129169][ T7654]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.129187][ T7654] RIP: 0033:0x7f6fccf9b5ca
[  249.129206][ T7654] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  249.129222][ T7654] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.129243][ T7654] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  249.129256][ T7654] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  249.129270][ T7654] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  249.129282][ T7654] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  249.129299][ T7654] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  249.129329][ T7654]  </TASK>
[  249.129353][ T7654] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  249.599987][ T7661] loop5: detected capacity change from 0 to 32768
[  249.603642][ T7665] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.738304][ T7654] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  249.770750][ T7661] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  249.810997][ T7667] loop4: detected capacity change from 0 to 32768
[  249.822055][ T7661] CPU: 1 UID: 0 PID: 7661 Comm: syz.5.207 Not tainted syzkaller #0 PREEMPT(full) 
[  249.822080][ T7661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  249.822091][ T7661] Call Trace:
[  249.822099][ T7661]  <TASK>
[  249.822108][ T7661]  dump_stack_lvl+0xe8/0x150
[  249.822141][ T7661]  sysfs_create_dir_ns+0x271/0x2a0
[  249.822171][ T7661]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  249.822197][ T7661]  ? do_raw_spin_unlock+0xf5/0x210
[  249.822224][ T7661]  kobject_add_internal+0x62b/0xd00
[  249.822260][ T7661]  kobject_init_and_add+0x12b/0x1a0
[  249.822293][ T7661]  ? __pfx_kobject_init_and_add+0x10/0x10
[  249.822322][ T7661]  ? __raw_spin_lock_init+0x45/0x100
[  249.822347][ T7661]  ? __init_swait_queue_head+0xa9/0x150
[  249.822374][ T7661]  gfs2_sys_fs_add+0x257/0x480
[  249.822401][ T7661]  ? is_dynamic_key+0x1ac/0x1c0
[  249.822428][ T7661]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  249.822465][ T7661]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  249.822501][ T7661]  gfs2_fill_super+0x13a7/0x21d0
[  249.822539][ T7661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.822566][ T7661]  ? sb_set_blocksize+0x155/0x240
[  249.822591][ T7661]  ? setup_bdev_super+0x4c1/0x5b0
[  249.822615][ T7661]  get_tree_bdev_flags+0x431/0x4f0
[  249.822636][ T7661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  249.822657][ T7661]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  249.822675][ T7661]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  249.822705][ T7661]  gfs2_get_tree+0x51/0x1e0
[  249.822731][ T7661]  vfs_get_tree+0x92/0x2a0
[  249.822752][ T7661]  do_new_mount+0x341/0xd30
[  249.822774][ T7661]  ? apparmor_capable+0x126/0x170
[  249.822800][ T7661]  ? __pfx_do_new_mount+0x10/0x10
[  249.822823][ T7661]  ? ns_capable+0x89/0xe0
[  249.822860][ T7661]  ? user_path_at+0xd4/0x160
[  249.822890][ T7661]  __se_sys_mount+0x31d/0x420
[  249.822921][ T7661]  ? __pfx___se_sys_mount+0x10/0x10
[  249.822959][ T7661]  ? __x64_sys_mount+0x20/0xc0
[  249.822983][ T7661]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.823004][ T7661]  do_syscall_64+0x15f/0xf80
[  249.823027][ T7661]  ? trace_irq_disable+0x3b/0x140
[  249.823051][ T7661]  ? clear_bhb_loop+0x40/0x90
[  249.823073][ T7661]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  249.823093][ T7661] RIP: 0033:0x7fd84279b5ca
[  249.823112][ T7661] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  249.823129][ T7661] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  249.823151][ T7661] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  249.823166][ T7661] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  249.823180][ T7661] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  249.823192][ T7661] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  249.823205][ T7661] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  249.823237][ T7661]  </TASK>
[  249.823263][ T7661] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.130732][ T7661] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.147851][ T7667] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.208238][ T7669] loop2: detected capacity change from 0 to 32768
[  250.219553][ T7667] CPU: 0 UID: 0 PID: 7667 Comm: syz.4.209 Not tainted syzkaller #0 PREEMPT(full) 
[  250.219580][ T7667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  250.219593][ T7667] Call Trace:
[  250.219601][ T7667]  <TASK>
[  250.219610][ T7667]  dump_stack_lvl+0xe8/0x150
[  250.219644][ T7667]  sysfs_create_dir_ns+0x271/0x2a0
2026/03/28 19:51:05 executed programs: 204
[  250.219672][ T7667]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  250.219698][ T7667]  ? do_raw_spin_unlock+0xf5/0x210
[  250.219726][ T7667]  kobject_add_internal+0x62b/0xd00
[  250.219765][ T7667]  kobject_init_and_add+0x12b/0x1a0
[  250.219798][ T7667]  ? __pfx_kobject_init_and_add+0x10/0x10
[  250.219825][ T7667]  ? __raw_spin_lock_init+0x45/0x100
[  250.219849][ T7667]  ? __init_swait_queue_head+0xa9/0x150
[  250.219875][ T7667]  gfs2_sys_fs_add+0x257/0x480
[  250.219902][ T7667]  ? is_dynamic_key+0x1ac/0x1c0
[  250.219929][ T7667]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  250.219964][ T7667]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  250.220001][ T7667]  gfs2_fill_super+0x13a7/0x21d0
[  250.220038][ T7667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.220065][ T7667]  ? sb_set_blocksize+0x155/0x240
[  250.220087][ T7667]  ? setup_bdev_super+0x4c1/0x5b0
[  250.220110][ T7667]  get_tree_bdev_flags+0x431/0x4f0
[  250.220131][ T7667]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.220159][ T7667]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.220176][ T7667]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  250.220205][ T7667]  gfs2_get_tree+0x51/0x1e0
[  250.220229][ T7667]  vfs_get_tree+0x92/0x2a0
[  250.220252][ T7667]  do_new_mount+0x341/0xd30
[  250.220274][ T7667]  ? apparmor_capable+0x126/0x170
[  250.220302][ T7667]  ? __pfx_do_new_mount+0x10/0x10
[  250.220326][ T7667]  ? ns_capable+0x89/0xe0
[  250.220363][ T7667]  ? user_path_at+0xd4/0x160
[  250.220390][ T7667]  __se_sys_mount+0x31d/0x420
[  250.220420][ T7667]  ? __pfx___se_sys_mount+0x10/0x10
[  250.220450][ T7667]  ? __x64_sys_mount+0x20/0xc0
[  250.220473][ T7667]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.220494][ T7667]  do_syscall_64+0x15f/0xf80
[  250.220517][ T7667]  ? trace_irq_disable+0x3b/0x140
[  250.220545][ T7667]  ? clear_bhb_loop+0x40/0x90
[  250.220567][ T7667]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.220585][ T7667] RIP: 0033:0x7f91c659b5ca
[  250.220603][ T7667] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  250.220619][ T7667] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.220638][ T7667] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  250.220651][ T7667] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  250.220665][ T7667] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  250.220678][ T7667] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  250.220691][ T7667] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  250.220720][ T7667]  </TASK>
[  250.220848][ T7667] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.528601][ T7669] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  250.552245][ T7669] CPU: 0 UID: 0 PID: 7669 Comm: syz.2.210 Not tainted syzkaller #0 PREEMPT(full) 
[  250.552272][ T7669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  250.552284][ T7669] Call Trace:
[  250.552292][ T7669]  <TASK>
[  250.552301][ T7669]  dump_stack_lvl+0xe8/0x150
[  250.552335][ T7669]  sysfs_create_dir_ns+0x271/0x2a0
[  250.552363][ T7669]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  250.552390][ T7669]  ? do_raw_spin_unlock+0xf5/0x210
[  250.552417][ T7669]  kobject_add_internal+0x62b/0xd00
[  250.552454][ T7669]  kobject_init_and_add+0x12b/0x1a0
[  250.552487][ T7669]  ? __pfx_kobject_init_and_add+0x10/0x10
[  250.552515][ T7669]  ? __raw_spin_lock_init+0x45/0x100
[  250.552537][ T7669]  ? __init_swait_queue_head+0xa9/0x150
[  250.552560][ T7669]  gfs2_sys_fs_add+0x257/0x480
[  250.552582][ T7669]  ? is_dynamic_key+0x1ac/0x1c0
[  250.552604][ T7669]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  250.552632][ T7669]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  250.552660][ T7669]  gfs2_fill_super+0x13a7/0x21d0
[  250.552691][ T7669]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.552713][ T7669]  ? sb_set_blocksize+0x155/0x240
[  250.552732][ T7669]  ? setup_bdev_super+0x4c1/0x5b0
[  250.552751][ T7669]  get_tree_bdev_flags+0x431/0x4f0
[  250.552767][ T7669]  ? __pfx_gfs2_fill_super+0x10/0x10
[  250.552784][ T7669]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  250.552798][ T7669]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  250.552821][ T7669]  gfs2_get_tree+0x51/0x1e0
[  250.552842][ T7669]  vfs_get_tree+0x92/0x2a0
[  250.552859][ T7669]  do_new_mount+0x341/0xd30
[  250.552877][ T7669]  ? apparmor_capable+0x126/0x170
[  250.552901][ T7669]  ? __pfx_do_new_mount+0x10/0x10
[  250.552920][ T7669]  ? ns_capable+0x89/0xe0
[  250.552949][ T7669]  ? user_path_at+0xd4/0x160
[  250.552973][ T7669]  __se_sys_mount+0x31d/0x420
[  250.552997][ T7669]  ? __pfx___se_sys_mount+0x10/0x10
[  250.553021][ T7669]  ? __x64_sys_mount+0x20/0xc0
[  250.553040][ T7669]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.553057][ T7669]  do_syscall_64+0x15f/0xf80
[  250.553075][ T7669]  ? trace_irq_disable+0x3b/0x140
[  250.553094][ T7669]  ? clear_bhb_loop+0x40/0x90
[  250.553113][ T7669]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  250.553128][ T7669] RIP: 0033:0x7f48f8d9b5ca
[  250.553151][ T7669] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  250.553165][ T7669] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  250.553183][ T7669] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  250.553194][ T7669] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  250.553205][ T7669] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  250.553215][ T7669] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  250.553225][ T7669] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  250.553251][ T7669]  </TASK>
[  250.553277][ T7669] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  250.618273][ T7667] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  250.631015][ T7669] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.001228][ T7685] loop4: detected capacity change from 0 to 32768
[  252.043631][ T7685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.058252][ T7685] CPU: 0 UID: 0 PID: 7685 Comm: syz.4.213 Not tainted syzkaller #0 PREEMPT(full) 
[  252.058281][ T7685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  252.058292][ T7685] Call Trace:
[  252.058300][ T7685]  <TASK>
[  252.058309][ T7685]  dump_stack_lvl+0xe8/0x150
[  252.058340][ T7685]  sysfs_create_dir_ns+0x271/0x2a0
[  252.058369][ T7685]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.058397][ T7685]  ? do_raw_spin_unlock+0xf5/0x210
[  252.058424][ T7685]  kobject_add_internal+0x62b/0xd00
[  252.058460][ T7685]  kobject_init_and_add+0x12b/0x1a0
[  252.058493][ T7685]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.058522][ T7685]  ? __raw_spin_lock_init+0x45/0x100
[  252.058546][ T7685]  ? __init_swait_queue_head+0xa9/0x150
[  252.058573][ T7685]  gfs2_sys_fs_add+0x257/0x480
[  252.058600][ T7685]  ? is_dynamic_key+0x1ac/0x1c0
[  252.058626][ T7685]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.058662][ T7685]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.058697][ T7685]  gfs2_fill_super+0x13a7/0x21d0
[  252.058735][ T7685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.058766][ T7685]  ? sb_set_blocksize+0x155/0x240
[  252.058790][ T7685]  ? setup_bdev_super+0x4c1/0x5b0
[  252.058812][ T7685]  get_tree_bdev_flags+0x431/0x4f0
[  252.058833][ T7685]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.058856][ T7685]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.058872][ T7685]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  252.058901][ T7685]  gfs2_get_tree+0x51/0x1e0
[  252.058927][ T7685]  vfs_get_tree+0x92/0x2a0
[  252.058950][ T7685]  do_new_mount+0x341/0xd30
[  252.058980][ T7685]  ? apparmor_capable+0x126/0x170
[  252.059008][ T7685]  ? __pfx_do_new_mount+0x10/0x10
[  252.059030][ T7685]  ? ns_capable+0x89/0xe0
[  252.059062][ T7685]  ? user_path_at+0xd4/0x160
[  252.059090][ T7685]  __se_sys_mount+0x31d/0x420
[  252.059121][ T7685]  ? __pfx___se_sys_mount+0x10/0x10
[  252.059151][ T7685]  ? __x64_sys_mount+0x20/0xc0
[  252.059174][ T7685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.059195][ T7685]  do_syscall_64+0x15f/0xf80
[  252.059218][ T7685]  ? trace_irq_disable+0x3b/0x140
[  252.059241][ T7685]  ? clear_bhb_loop+0x40/0x90
[  252.059264][ T7685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.059284][ T7685] RIP: 0033:0x7f91c659b5ca
[  252.059303][ T7685] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  252.059320][ T7685] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.059340][ T7685] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  252.059355][ T7685] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  252.059369][ T7685] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  252.059382][ T7685] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  252.059395][ T7685] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  252.059425][ T7685]  </TASK>
[  252.059463][ T7685] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.253524][ T7682] loop5: detected capacity change from 0 to 32768
[  252.277943][ T7687] loop1: detected capacity change from 0 to 32768
[  252.341613][ T7685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.396545][ T7688] loop0: detected capacity change from 0 to 32768
[  252.421349][ T7682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.453999][ T7682] CPU: 0 UID: 0 PID: 7682 Comm: syz.5.212 Not tainted syzkaller #0 PREEMPT(full) 
[  252.454026][ T7682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  252.454038][ T7682] Call Trace:
[  252.454046][ T7682]  <TASK>
[  252.454055][ T7682]  dump_stack_lvl+0xe8/0x150
[  252.454087][ T7682]  sysfs_create_dir_ns+0x271/0x2a0
[  252.454119][ T7682]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.454145][ T7682]  ? do_raw_spin_unlock+0xf5/0x210
[  252.454170][ T7682]  kobject_add_internal+0x62b/0xd00
[  252.454201][ T7682]  kobject_init_and_add+0x12b/0x1a0
[  252.454226][ T7682]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.454249][ T7682]  ? __raw_spin_lock_init+0x45/0x100
[  252.454267][ T7682]  ? __init_swait_queue_head+0xa9/0x150
[  252.454288][ T7682]  gfs2_sys_fs_add+0x257/0x480
[  252.454309][ T7682]  ? is_dynamic_key+0x1ac/0x1c0
[  252.454330][ T7682]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.454358][ T7682]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.454385][ T7682]  gfs2_fill_super+0x13a7/0x21d0
[  252.454414][ T7682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.454435][ T7682]  ? sb_set_blocksize+0x155/0x240
[  252.454455][ T7682]  ? setup_bdev_super+0x4c1/0x5b0
[  252.454473][ T7682]  get_tree_bdev_flags+0x431/0x4f0
[  252.454489][ T7682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.454506][ T7682]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.454520][ T7682]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  252.454542][ T7682]  gfs2_get_tree+0x51/0x1e0
[  252.454562][ T7682]  vfs_get_tree+0x92/0x2a0
[  252.454579][ T7682]  do_new_mount+0x341/0xd30
[  252.454596][ T7682]  ? apparmor_capable+0x126/0x170
[  252.454619][ T7682]  ? __pfx_do_new_mount+0x10/0x10
[  252.454637][ T7682]  ? ns_capable+0x89/0xe0
[  252.454665][ T7682]  ? user_path_at+0xd4/0x160
[  252.454687][ T7682]  __se_sys_mount+0x31d/0x420
[  252.454712][ T7682]  ? __pfx___se_sys_mount+0x10/0x10
[  252.454735][ T7682]  ? __x64_sys_mount+0x20/0xc0
[  252.454754][ T7682]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.454770][ T7682]  do_syscall_64+0x15f/0xf80
[  252.454788][ T7682]  ? trace_irq_disable+0x3b/0x140
[  252.454806][ T7682]  ? clear_bhb_loop+0x40/0x90
[  252.454825][ T7682]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.454840][ T7682] RIP: 0033:0x7fd84279b5ca
[  252.454855][ T7682] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  252.454869][ T7682] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.454885][ T7682] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  252.454897][ T7682] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  252.454909][ T7682] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  252.454919][ T7682] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  252.454930][ T7682] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  252.454959][ T7682]  </TASK>
[  252.454995][ T7682] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.635592][ T7688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.639422][ T7682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.676439][ T7687] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  252.705191][ T7688] CPU: 0 UID: 0 PID: 7688 Comm: syz.0.214 Not tainted syzkaller #0 PREEMPT(full) 
[  252.705217][ T7688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  252.705229][ T7688] Call Trace:
[  252.705238][ T7688]  <TASK>
[  252.705246][ T7688]  dump_stack_lvl+0xe8/0x150
[  252.705279][ T7688]  sysfs_create_dir_ns+0x271/0x2a0
[  252.705307][ T7688]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.705332][ T7688]  ? do_raw_spin_unlock+0xf5/0x210
[  252.705357][ T7688]  kobject_add_internal+0x62b/0xd00
[  252.705391][ T7688]  kobject_init_and_add+0x12b/0x1a0
[  252.705422][ T7688]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.705449][ T7688]  ? __raw_spin_lock_init+0x45/0x100
[  252.705472][ T7688]  ? __init_swait_queue_head+0xa9/0x150
[  252.705497][ T7688]  gfs2_sys_fs_add+0x257/0x480
[  252.705524][ T7688]  ? is_dynamic_key+0x1ac/0x1c0
[  252.705548][ T7688]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.705583][ T7688]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.705618][ T7688]  gfs2_fill_super+0x13a7/0x21d0
[  252.705654][ T7688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.705687][ T7688]  ? sb_set_blocksize+0x155/0x240
[  252.705711][ T7688]  ? setup_bdev_super+0x4c1/0x5b0
[  252.705733][ T7688]  get_tree_bdev_flags+0x431/0x4f0
[  252.705752][ T7688]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.705774][ T7688]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.705790][ T7688]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  252.705818][ T7688]  gfs2_get_tree+0x51/0x1e0
[  252.705844][ T7688]  vfs_get_tree+0x92/0x2a0
[  252.705864][ T7688]  do_new_mount+0x341/0xd30
[  252.705885][ T7688]  ? apparmor_capable+0x126/0x170
[  252.705912][ T7688]  ? __pfx_do_new_mount+0x10/0x10
[  252.705935][ T7688]  ? ns_capable+0x89/0xe0
[  252.705970][ T7688]  ? user_path_at+0xd4/0x160
[  252.705997][ T7688]  __se_sys_mount+0x31d/0x420
[  252.706026][ T7688]  ? __pfx___se_sys_mount+0x10/0x10
[  252.706055][ T7688]  ? __x64_sys_mount+0x20/0xc0
[  252.706078][ T7688]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.706098][ T7688]  do_syscall_64+0x15f/0xf80
[  252.706120][ T7688]  ? trace_irq_disable+0x3b/0x140
[  252.706142][ T7688]  ? clear_bhb_loop+0x40/0x90
[  252.706165][ T7688]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.706183][ T7688] RIP: 0033:0x7f73fed9b5ca
[  252.706200][ T7688] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  252.706217][ T7688] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.706237][ T7688] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  252.706251][ T7688] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  252.706264][ T7688] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  252.706277][ T7688] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  252.706289][ T7688] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  252.706319][ T7688]  </TASK>
[  252.706344][ T7688] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.739364][ T7687] CPU: 1 UID: 0 PID: 7687 Comm: syz.1.211 Not tainted syzkaller #0 PREEMPT(full) 
[  252.739390][ T7687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  252.739403][ T7687] Call Trace:
[  252.739412][ T7687]  <TASK>
[  252.739421][ T7687]  dump_stack_lvl+0xe8/0x150
[  252.739453][ T7687]  sysfs_create_dir_ns+0x271/0x2a0
[  252.739482][ T7687]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  252.739509][ T7687]  ? do_raw_spin_unlock+0xf5/0x210
[  252.739535][ T7687]  kobject_add_internal+0x62b/0xd00
[  252.739570][ T7687]  kobject_init_and_add+0x12b/0x1a0
[  252.739605][ T7687]  ? __pfx_kobject_init_and_add+0x10/0x10
[  252.739632][ T7687]  ? __raw_spin_lock_init+0x45/0x100
[  252.739656][ T7687]  ? __init_swait_queue_head+0xa9/0x150
[  252.739682][ T7687]  gfs2_sys_fs_add+0x257/0x480
[  252.739709][ T7687]  ? is_dynamic_key+0x1ac/0x1c0
[  252.739734][ T7687]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  252.739769][ T7687]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  252.739804][ T7687]  gfs2_fill_super+0x13a7/0x21d0
[  252.739841][ T7687]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.739868][ T7687]  ? sb_set_blocksize+0x155/0x240
[  252.739891][ T7687]  ? setup_bdev_super+0x4c1/0x5b0
[  252.739913][ T7687]  get_tree_bdev_flags+0x431/0x4f0
[  252.739939][ T7687]  ? __pfx_gfs2_fill_super+0x10/0x10
[  252.739961][ T7687]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  252.739977][ T7687]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  252.740006][ T7687]  gfs2_get_tree+0x51/0x1e0
[  252.740031][ T7687]  vfs_get_tree+0x92/0x2a0
[  252.740052][ T7687]  do_new_mount+0x341/0xd30
[  252.740073][ T7687]  ? apparmor_capable+0x126/0x170
[  252.740101][ T7687]  ? __pfx_do_new_mount+0x10/0x10
[  252.740124][ T7687]  ? ns_capable+0x89/0xe0
[  252.740160][ T7687]  ? user_path_at+0xd4/0x160
[  252.740188][ T7687]  __se_sys_mount+0x31d/0x420
[  252.740217][ T7687]  ? __pfx___se_sys_mount+0x10/0x10
[  252.740246][ T7687]  ? __x64_sys_mount+0x20/0xc0
[  252.740269][ T7687]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.740289][ T7687]  do_syscall_64+0x15f/0xf80
[  252.740312][ T7687]  ? trace_irq_disable+0x3b/0x140
[  252.740333][ T7687]  ? clear_bhb_loop+0x40/0x90
[  252.740356][ T7687]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  252.740374][ T7687] RIP: 0033:0x7f6fccf9b5ca
[  252.740392][ T7687] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  252.740410][ T7687] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  252.740429][ T7687] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  252.740443][ T7687] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  252.740456][ T7687] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  252.740469][ T7687] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  252.740481][ T7687] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  252.740511][ T7687]  </TASK>
[  252.740548][ T7687] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  252.816866][ T7688] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  252.920475][ T7687] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  253.642573][ T7690] loop2: detected capacity change from 0 to 32768
[  253.692826][ T7690] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  253.718420][ T7690] CPU: 0 UID: 0 PID: 7690 Comm: syz.2.215 Not tainted syzkaller #0 PREEMPT(full) 
[  253.718447][ T7690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  253.718458][ T7690] Call Trace:
[  253.718466][ T7690]  <TASK>
[  253.718474][ T7690]  dump_stack_lvl+0xe8/0x150
[  253.718506][ T7690]  sysfs_create_dir_ns+0x271/0x2a0
[  253.718533][ T7690]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  253.718558][ T7690]  ? do_raw_spin_unlock+0xf5/0x210
[  253.718583][ T7690]  kobject_add_internal+0x62b/0xd00
[  253.718615][ T7690]  kobject_init_and_add+0x12b/0x1a0
[  253.718643][ T7690]  ? __pfx_kobject_init_and_add+0x10/0x10
[  253.718669][ T7690]  ? __raw_spin_lock_init+0x45/0x100
[  253.718693][ T7690]  ? __init_swait_queue_head+0xa9/0x150
[  253.718716][ T7690]  gfs2_sys_fs_add+0x257/0x480
[  253.718740][ T7690]  ? is_dynamic_key+0x1ac/0x1c0
[  253.718766][ T7690]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  253.718799][ T7690]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  253.718835][ T7690]  gfs2_fill_super+0x13a7/0x21d0
[  253.718882][ T7690]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.718909][ T7690]  ? sb_set_blocksize+0x155/0x240
[  253.718934][ T7690]  ? setup_bdev_super+0x4c1/0x5b0
[  253.718955][ T7690]  get_tree_bdev_flags+0x431/0x4f0
[  253.718975][ T7690]  ? __pfx_gfs2_fill_super+0x10/0x10
[  253.718997][ T7690]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  253.719012][ T7690]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  253.719040][ T7690]  gfs2_get_tree+0x51/0x1e0
[  253.719065][ T7690]  vfs_get_tree+0x92/0x2a0
[  253.719087][ T7690]  do_new_mount+0x341/0xd30
[  253.719110][ T7690]  ? apparmor_capable+0x126/0x170
[  253.719136][ T7690]  ? __pfx_do_new_mount+0x10/0x10
[  253.719160][ T7690]  ? ns_capable+0x89/0xe0
[  253.719196][ T7690]  ? user_path_at+0xd4/0x160
[  253.719225][ T7690]  __se_sys_mount+0x31d/0x420
[  253.719254][ T7690]  ? __pfx___se_sys_mount+0x10/0x10
[  253.719288][ T7690]  ? __x64_sys_mount+0x20/0xc0
[  253.719312][ T7690]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.719334][ T7690]  do_syscall_64+0x15f/0xf80
[  253.719355][ T7690]  ? trace_irq_disable+0x3b/0x140
[  253.719378][ T7690]  ? clear_bhb_loop+0x40/0x90
[  253.719402][ T7690]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  253.719421][ T7690] RIP: 0033:0x7f48f8d9b5ca
[  253.719438][ T7690] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  253.719454][ T7690] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  253.719473][ T7690] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  253.719488][ T7690] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  253.719501][ T7690] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  253.719515][ T7690] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  253.719528][ T7690] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  253.719559][ T7690]  </TASK>
[  253.719596][ T7690] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.028256][ T7690] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  254.719515][ T7704] loop0: detected capacity change from 0 to 32768
[  254.757658][ T7704] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  254.786843][ T7704] CPU: 0 UID: 0 PID: 7704 Comm: syz.0.218 Not tainted syzkaller #0 PREEMPT(full) 
[  254.786872][ T7704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  254.786885][ T7704] Call Trace:
[  254.786893][ T7704]  <TASK>
[  254.786902][ T7704]  dump_stack_lvl+0xe8/0x150
[  254.786936][ T7704]  sysfs_create_dir_ns+0x271/0x2a0
[  254.786967][ T7704]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  254.786994][ T7704]  ? do_raw_spin_unlock+0xf5/0x210
[  254.787022][ T7704]  kobject_add_internal+0x62b/0xd00
[  254.787059][ T7704]  kobject_init_and_add+0x12b/0x1a0
[  254.787092][ T7704]  ? __pfx_kobject_init_and_add+0x10/0x10
[  254.787121][ T7704]  ? __raw_spin_lock_init+0x45/0x100
[  254.787146][ T7704]  ? __init_swait_queue_head+0xa9/0x150
[  254.787172][ T7704]  gfs2_sys_fs_add+0x257/0x480
[  254.787200][ T7704]  ? is_dynamic_key+0x1ac/0x1c0
[  254.787226][ T7704]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  254.787263][ T7704]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  254.787298][ T7704]  gfs2_fill_super+0x13a7/0x21d0
[  254.787338][ T7704]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.787366][ T7704]  ? sb_set_blocksize+0x155/0x240
[  254.787391][ T7704]  ? setup_bdev_super+0x4c1/0x5b0
[  254.787414][ T7704]  get_tree_bdev_flags+0x431/0x4f0
[  254.787435][ T7704]  ? __pfx_gfs2_fill_super+0x10/0x10
[  254.787457][ T7704]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  254.787476][ T7704]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  254.787505][ T7704]  gfs2_get_tree+0x51/0x1e0
[  254.787538][ T7704]  vfs_get_tree+0x92/0x2a0
[  254.787557][ T7704]  do_new_mount+0x341/0xd30
[  254.787578][ T7704]  ? apparmor_capable+0x126/0x170
[  254.787604][ T7704]  ? __pfx_do_new_mount+0x10/0x10
[  254.787626][ T7704]  ? ns_capable+0x89/0xe0
[  254.787657][ T7704]  ? user_path_at+0xd4/0x160
[  254.787682][ T7704]  __se_sys_mount+0x31d/0x420
[  254.787708][ T7704]  ? __pfx___se_sys_mount+0x10/0x10
[  254.787738][ T7704]  ? __x64_sys_mount+0x20/0xc0
[  254.787760][ T7704]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.787778][ T7704]  do_syscall_64+0x15f/0xf80
[  254.787797][ T7704]  ? trace_irq_disable+0x3b/0x140
[  254.787818][ T7704]  ? clear_bhb_loop+0x40/0x90
[  254.787841][ T7704]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  254.787858][ T7704] RIP: 0033:0x7f73fed9b5ca
[  254.787877][ T7704] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  254.787894][ T7704] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  254.787914][ T7704] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  254.787928][ T7704] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  254.787941][ T7704] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  254.787954][ T7704] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  254.787966][ T7704] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  254.787992][ T7704]  </TASK>
[  254.788018][ T7704] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  254.913603][ T7702] loop5: detected capacity change from 0 to 32768
[  254.976383][ T7704] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.103470][ T7700] loop4: detected capacity change from 0 to 32768
[  255.156714][ T7702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.167525][ T7702] CPU: 0 UID: 0 PID: 7702 Comm: syz.5.217 Not tainted syzkaller #0 PREEMPT(full) 
[  255.167552][ T7702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  255.167565][ T7702] Call Trace:
[  255.167573][ T7702]  <TASK>
[  255.167581][ T7702]  dump_stack_lvl+0xe8/0x150
[  255.167614][ T7702]  sysfs_create_dir_ns+0x271/0x2a0
[  255.167639][ T7702]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  255.167664][ T7702]  ? do_raw_spin_unlock+0xf5/0x210
[  255.167690][ T7702]  kobject_add_internal+0x62b/0xd00
[  255.167721][ T7702]  kobject_init_and_add+0x12b/0x1a0
[  255.167750][ T7702]  ? __pfx_kobject_init_and_add+0x10/0x10
[  255.167772][ T7702]  ? __raw_spin_lock_init+0x45/0x100
[  255.167794][ T7702]  ? __init_swait_queue_head+0xa9/0x150
[  255.167819][ T7702]  gfs2_sys_fs_add+0x257/0x480
[  255.167845][ T7702]  ? is_dynamic_key+0x1ac/0x1c0
[  255.167870][ T7702]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  255.167901][ T7702]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  255.167937][ T7702]  gfs2_fill_super+0x13a7/0x21d0
[  255.167973][ T7702]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.167999][ T7702]  ? sb_set_blocksize+0x155/0x240
[  255.168023][ T7702]  ? setup_bdev_super+0x4c1/0x5b0
[  255.168046][ T7702]  get_tree_bdev_flags+0x431/0x4f0
[  255.168066][ T7702]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.168088][ T7702]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  255.168109][ T7702]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  255.168135][ T7702]  gfs2_get_tree+0x51/0x1e0
[  255.168160][ T7702]  vfs_get_tree+0x92/0x2a0
[  255.168181][ T7702]  do_new_mount+0x341/0xd30
[  255.168204][ T7702]  ? apparmor_capable+0x126/0x170
[  255.168232][ T7702]  ? __pfx_do_new_mount+0x10/0x10
[  255.168255][ T7702]  ? ns_capable+0x89/0xe0
[  255.168291][ T7702]  ? user_path_at+0xd4/0x160
[  255.168319][ T7702]  __se_sys_mount+0x31d/0x420
[  255.168349][ T7702]  ? __pfx___se_sys_mount+0x10/0x10
[  255.168379][ T7702]  ? __x64_sys_mount+0x20/0xc0
[  255.168401][ T7702]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.168422][ T7702]  do_syscall_64+0x15f/0xf80
[  255.168445][ T7702]  ? trace_irq_disable+0x3b/0x140
[  255.168468][ T7702]  ? clear_bhb_loop+0x40/0x90
[  255.168491][ T7702]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.168517][ T7702] RIP: 0033:0x7fd84279b5ca
[  255.168535][ T7702] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  255.168553][ T7702] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.168574][ T7702] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  255.168588][ T7702] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  255.168602][ T7702] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  255.168615][ T7702] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  255.168627][ T7702] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  255.168657][ T7702]  </TASK>
[  255.588249][ T7702] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.617215][ T7710] loop2: detected capacity change from 0 to 32768
[  255.654939][ T7700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  255.663022][ T7700] CPU: 1 UID: 0 PID: 7700 Comm: syz.4.216 Not tainted syzkaller #0 PREEMPT(full) 
[  255.663048][ T7700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  255.663060][ T7700] Call Trace:
[  255.663068][ T7700]  <TASK>
[  255.663077][ T7700]  dump_stack_lvl+0xe8/0x150
[  255.663112][ T7700]  sysfs_create_dir_ns+0x271/0x2a0
[  255.663141][ T7700]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  255.663168][ T7700]  ? do_raw_spin_unlock+0xf5/0x210
[  255.663195][ T7700]  kobject_add_internal+0x62b/0xd00
[  255.663232][ T7700]  kobject_init_and_add+0x12b/0x1a0
[  255.663265][ T7700]  ? __pfx_kobject_init_and_add+0x10/0x10
[  255.663294][ T7700]  ? __raw_spin_lock_init+0x45/0x100
[  255.663318][ T7700]  ? __init_swait_queue_head+0xa9/0x150
[  255.663345][ T7700]  gfs2_sys_fs_add+0x257/0x480
[  255.663372][ T7700]  ? is_dynamic_key+0x1ac/0x1c0
[  255.663398][ T7700]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  255.663433][ T7700]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  255.663469][ T7700]  gfs2_fill_super+0x13a7/0x21d0
[  255.663507][ T7700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.663535][ T7700]  ? sb_set_blocksize+0x155/0x240
[  255.663559][ T7700]  ? setup_bdev_super+0x4c1/0x5b0
[  255.663582][ T7700]  get_tree_bdev_flags+0x431/0x4f0
[  255.663603][ T7700]  ? __pfx_gfs2_fill_super+0x10/0x10
[  255.663625][ T7700]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  255.663643][ T7700]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  255.663703][ T7700]  gfs2_get_tree+0x51/0x1e0
[  255.663730][ T7700]  vfs_get_tree+0x92/0x2a0
[  255.663752][ T7700]  do_new_mount+0x341/0xd30
[  255.663774][ T7700]  ? apparmor_capable+0x126/0x170
[  255.663802][ T7700]  ? __pfx_do_new_mount+0x10/0x10
[  255.663826][ T7700]  ? ns_capable+0x89/0xe0
[  255.663864][ T7700]  ? user_path_at+0xd4/0x160
[  255.663893][ T7700]  __se_sys_mount+0x31d/0x420
[  255.663923][ T7700]  ? __pfx___se_sys_mount+0x10/0x10
[  255.663953][ T7700]  ? __x64_sys_mount+0x20/0xc0
[  255.663977][ T7700]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.663998][ T7700]  do_syscall_64+0x15f/0xf80
[  255.664024][ T7700]  ? trace_irq_disable+0x3b/0x140
[  255.664047][ T7700]  ? clear_bhb_loop+0x40/0x90
[  255.664070][ T7700]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  255.664089][ T7700] RIP: 0033:0x7f91c659b5ca
[  255.664107][ T7700] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  255.664124][ T7700] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  255.664144][ T7700] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  255.664159][ T7700] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  255.664173][ T7700] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  255.664186][ T7700] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  255.664198][ T7700] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  255.664229][ T7700]  </TASK>
[  255.664267][ T7700] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  255.829844][ T7702] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  255.998479][ T7700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.006599][ T1313] ieee802154 phy0 wpan0: encryption failed: -22
[  256.016640][ T1313] ieee802154 phy1 wpan1: encryption failed: -22
[  256.023399][ T7710] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.040947][ T7710] CPU: 1 UID: 0 PID: 7710 Comm: syz.2.220 Not tainted syzkaller #0 PREEMPT(full) 
[  256.040973][ T7710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  256.040985][ T7710] Call Trace:
[  256.040993][ T7710]  <TASK>
[  256.041001][ T7710]  dump_stack_lvl+0xe8/0x150
[  256.041034][ T7710]  sysfs_create_dir_ns+0x271/0x2a0
[  256.041064][ T7710]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.041091][ T7710]  ? do_raw_spin_unlock+0xf5/0x210
[  256.041118][ T7710]  kobject_add_internal+0x62b/0xd00
[  256.041155][ T7710]  kobject_init_and_add+0x12b/0x1a0
[  256.041187][ T7710]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.041235][ T7710]  ? __raw_spin_lock_init+0x45/0x100
[  256.041259][ T7710]  ? __init_swait_queue_head+0xa9/0x150
[  256.041285][ T7710]  gfs2_sys_fs_add+0x257/0x480
[  256.041312][ T7710]  ? is_dynamic_key+0x1ac/0x1c0
[  256.041338][ T7710]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.041374][ T7710]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.041409][ T7710]  gfs2_fill_super+0x13a7/0x21d0
[  256.041456][ T7710]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.041483][ T7710]  ? sb_set_blocksize+0x155/0x240
[  256.041508][ T7710]  ? setup_bdev_super+0x4c1/0x5b0
[  256.041531][ T7710]  get_tree_bdev_flags+0x431/0x4f0
[  256.041552][ T7710]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.041575][ T7710]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.041593][ T7710]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  256.041623][ T7710]  gfs2_get_tree+0x51/0x1e0
[  256.041650][ T7710]  vfs_get_tree+0x92/0x2a0
[  256.041672][ T7710]  do_new_mount+0x341/0xd30
[  256.041694][ T7710]  ? apparmor_capable+0x126/0x170
[  256.041722][ T7710]  ? __pfx_do_new_mount+0x10/0x10
[  256.041744][ T7710]  ? ns_capable+0x89/0xe0
[  256.041781][ T7710]  ? user_path_at+0xd4/0x160
[  256.041810][ T7710]  __se_sys_mount+0x31d/0x420
[  256.041840][ T7710]  ? __pfx___se_sys_mount+0x10/0x10
[  256.041871][ T7710]  ? __x64_sys_mount+0x20/0xc0
[  256.041894][ T7710]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.041915][ T7710]  do_syscall_64+0x15f/0xf80
[  256.041938][ T7710]  ? trace_irq_disable+0x3b/0x140
[  256.041961][ T7710]  ? clear_bhb_loop+0x40/0x90
[  256.041987][ T7710]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.042007][ T7710] RIP: 0033:0x7f48f8d9b5ca
[  256.042025][ T7710] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  256.042042][ T7710] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.042063][ T7710] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  256.042078][ T7710] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
2026/03/28 19:51:11 executed programs: 214
[  256.042092][ T7710] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  256.042105][ T7710] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  256.042118][ T7710] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  256.042148][ T7710]  </TASK>
[  256.042184][ T7710] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  256.424968][ T7710] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  256.540532][ T7708] loop1: detected capacity change from 0 to 32768
[  256.570618][ T7708] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  256.589431][ T7708] CPU: 0 UID: 0 PID: 7708 Comm: syz.1.219 Not tainted syzkaller #0 PREEMPT(full) 
[  256.589459][ T7708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  256.589471][ T7708] Call Trace:
[  256.589480][ T7708]  <TASK>
[  256.589489][ T7708]  dump_stack_lvl+0xe8/0x150
[  256.589524][ T7708]  sysfs_create_dir_ns+0x271/0x2a0
[  256.589553][ T7708]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  256.589581][ T7708]  ? do_raw_spin_unlock+0xf5/0x210
[  256.589609][ T7708]  kobject_add_internal+0x62b/0xd00
[  256.589645][ T7708]  kobject_init_and_add+0x12b/0x1a0
[  256.589677][ T7708]  ? __pfx_kobject_init_and_add+0x10/0x10
[  256.589705][ T7708]  ? __raw_spin_lock_init+0x45/0x100
[  256.589730][ T7708]  ? __init_swait_queue_head+0xa9/0x150
[  256.589757][ T7708]  gfs2_sys_fs_add+0x257/0x480
[  256.589784][ T7708]  ? is_dynamic_key+0x1ac/0x1c0
[  256.589810][ T7708]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  256.589850][ T7708]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  256.589886][ T7708]  gfs2_fill_super+0x13a7/0x21d0
[  256.589925][ T7708]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.589952][ T7708]  ? sb_set_blocksize+0x155/0x240
[  256.589977][ T7708]  ? setup_bdev_super+0x4c1/0x5b0
[  256.590000][ T7708]  get_tree_bdev_flags+0x431/0x4f0
[  256.590020][ T7708]  ? __pfx_gfs2_fill_super+0x10/0x10
[  256.590043][ T7708]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  256.590059][ T7708]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  256.590086][ T7708]  gfs2_get_tree+0x51/0x1e0
[  256.590111][ T7708]  vfs_get_tree+0x92/0x2a0
[  256.590131][ T7708]  do_new_mount+0x341/0xd30
[  256.590153][ T7708]  ? apparmor_capable+0x126/0x170
[  256.590180][ T7708]  ? __pfx_do_new_mount+0x10/0x10
[  256.590203][ T7708]  ? ns_capable+0x89/0xe0
[  256.590241][ T7708]  ? user_path_at+0xd4/0x160
[  256.590271][ T7708]  __se_sys_mount+0x31d/0x420
[  256.590301][ T7708]  ? __pfx___se_sys_mount+0x10/0x10
[  256.590332][ T7708]  ? __x64_sys_mount+0x20/0xc0
[  256.590355][ T7708]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.590377][ T7708]  do_syscall_64+0x15f/0xf80
[  256.590406][ T7708]  ? trace_irq_disable+0x3b/0x140
[  256.590430][ T7708]  ? clear_bhb_loop+0x40/0x90
[  256.590454][ T7708]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  256.590473][ T7708] RIP: 0033:0x7f6fccf9b5ca
[  256.590492][ T7708] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  256.590509][ T7708] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  256.590530][ T7708] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  256.590545][ T7708] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  256.590559][ T7708] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  256.590572][ T7708] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  256.590585][ T7708] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  256.590615][ T7708]  </TASK>
[  256.590650][ T7708] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.193179][ T7708] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  257.583991][ T7720] loop4: detected capacity change from 0 to 32768
[  257.610538][ T7720] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  257.658267][ T7720] CPU: 0 UID: 0 PID: 7720 Comm: syz.4.222 Not tainted syzkaller #0 PREEMPT(full) 
[  257.658295][ T7720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  257.658307][ T7720] Call Trace:
[  257.658315][ T7720]  <TASK>
[  257.658324][ T7720]  dump_stack_lvl+0xe8/0x150
[  257.658357][ T7720]  sysfs_create_dir_ns+0x271/0x2a0
[  257.658386][ T7720]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  257.658414][ T7720]  ? do_raw_spin_unlock+0xf5/0x210
[  257.658442][ T7720]  kobject_add_internal+0x62b/0xd00
[  257.658478][ T7720]  kobject_init_and_add+0x12b/0x1a0
[  257.658511][ T7720]  ? __pfx_kobject_init_and_add+0x10/0x10
[  257.658539][ T7720]  ? __raw_spin_lock_init+0x45/0x100
[  257.658564][ T7720]  ? __init_swait_queue_head+0xa9/0x150
[  257.658590][ T7720]  gfs2_sys_fs_add+0x257/0x480
[  257.658617][ T7720]  ? is_dynamic_key+0x1ac/0x1c0
[  257.658642][ T7720]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  257.658676][ T7720]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  257.658712][ T7720]  gfs2_fill_super+0x13a7/0x21d0
[  257.658751][ T7720]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.658778][ T7720]  ? sb_set_blocksize+0x155/0x240
[  257.658802][ T7720]  ? setup_bdev_super+0x4c1/0x5b0
[  257.658825][ T7720]  get_tree_bdev_flags+0x431/0x4f0
[  257.658845][ T7720]  ? __pfx_gfs2_fill_super+0x10/0x10
[  257.658868][ T7720]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  257.658886][ T7720]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  257.658915][ T7720]  gfs2_get_tree+0x51/0x1e0
[  257.658941][ T7720]  vfs_get_tree+0x92/0x2a0
[  257.658964][ T7720]  do_new_mount+0x341/0xd30
[  257.658986][ T7720]  ? apparmor_capable+0x126/0x170
[  257.659014][ T7720]  ? __pfx_do_new_mount+0x10/0x10
[  257.659037][ T7720]  ? ns_capable+0x89/0xe0
[  257.659073][ T7720]  ? user_path_at+0xd4/0x160
[  257.659103][ T7720]  __se_sys_mount+0x31d/0x420
[  257.659132][ T7720]  ? __pfx___se_sys_mount+0x10/0x10
[  257.659163][ T7720]  ? __x64_sys_mount+0x20/0xc0
[  257.659186][ T7720]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.659207][ T7720]  do_syscall_64+0x15f/0xf80
[  257.659230][ T7720]  ? trace_irq_disable+0x3b/0x140
[  257.659259][ T7720]  ? clear_bhb_loop+0x40/0x90
[  257.659281][ T7720]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  257.659300][ T7720] RIP: 0033:0x7f91c659b5ca
[  257.659319][ T7720] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  257.659336][ T7720] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  257.659357][ T7720] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  257.659371][ T7720] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  257.659385][ T7720] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  257.659399][ T7720] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  257.659412][ T7720] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  257.659444][ T7720]  </TASK>
[  257.659521][ T7720] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  257.971371][ T7720] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.175857][ T7724] loop0: detected capacity change from 0 to 32768
[  258.220775][ T7724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.239018][ T7724] CPU: 1 UID: 0 PID: 7724 Comm: syz.0.221 Not tainted syzkaller #0 PREEMPT(full) 
[  258.239046][ T7724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  258.239058][ T7724] Call Trace:
[  258.239066][ T7724]  <TASK>
[  258.239073][ T7724]  dump_stack_lvl+0xe8/0x150
[  258.239118][ T7724]  sysfs_create_dir_ns+0x271/0x2a0
[  258.239146][ T7724]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.239172][ T7724]  ? do_raw_spin_unlock+0xf5/0x210
[  258.239198][ T7724]  kobject_add_internal+0x62b/0xd00
[  258.239234][ T7724]  kobject_init_and_add+0x12b/0x1a0
[  258.239265][ T7724]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.239295][ T7724]  ? __raw_spin_lock_init+0x45/0x100
[  258.239317][ T7724]  ? __init_swait_queue_head+0xa9/0x150
[  258.239343][ T7724]  gfs2_sys_fs_add+0x257/0x480
[  258.239369][ T7724]  ? is_dynamic_key+0x1ac/0x1c0
[  258.239396][ T7724]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.239431][ T7724]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.239466][ T7724]  gfs2_fill_super+0x13a7/0x21d0
[  258.239505][ T7724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.239532][ T7724]  ? sb_set_blocksize+0x155/0x240
[  258.239556][ T7724]  ? setup_bdev_super+0x4c1/0x5b0
[  258.239579][ T7724]  get_tree_bdev_flags+0x431/0x4f0
[  258.239600][ T7724]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.239623][ T7724]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.239640][ T7724]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  258.239667][ T7724]  gfs2_get_tree+0x51/0x1e0
[  258.239690][ T7724]  vfs_get_tree+0x92/0x2a0
[  258.239712][ T7724]  do_new_mount+0x341/0xd30
[  258.239731][ T7724]  ? apparmor_capable+0x126/0x170
[  258.239756][ T7724]  ? __pfx_do_new_mount+0x10/0x10
[  258.239779][ T7724]  ? ns_capable+0x89/0xe0
[  258.239815][ T7724]  ? user_path_at+0xd4/0x160
[  258.239844][ T7724]  __se_sys_mount+0x31d/0x420
[  258.239874][ T7724]  ? __pfx___se_sys_mount+0x10/0x10
[  258.239904][ T7724]  ? __x64_sys_mount+0x20/0xc0
[  258.239927][ T7724]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.239947][ T7724]  do_syscall_64+0x15f/0xf80
[  258.239970][ T7724]  ? trace_irq_disable+0x3b/0x140
[  258.239992][ T7724]  ? clear_bhb_loop+0x40/0x90
[  258.240016][ T7724]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.240035][ T7724] RIP: 0033:0x7f73fed9b5ca
[  258.240055][ T7724] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  258.240073][ T7724] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.240092][ T7724] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  258.240113][ T7724] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  258.240127][ T7724] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  258.240141][ T7724] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  258.240152][ T7724] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  258.240183][ T7724]  </TASK>
[  258.240300][ T7724] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.407045][ T7728] loop2: detected capacity change from 0 to 32768
[  258.461581][ T7724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  258.618927][ T7728] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  258.655070][ T7728] CPU: 1 UID: 0 PID: 7728 Comm: syz.2.223 Not tainted syzkaller #0 PREEMPT(full) 
[  258.655099][ T7728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  258.655110][ T7728] Call Trace:
[  258.655119][ T7728]  <TASK>
[  258.655127][ T7728]  dump_stack_lvl+0xe8/0x150
[  258.655161][ T7728]  sysfs_create_dir_ns+0x271/0x2a0
[  258.655191][ T7728]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  258.655224][ T7728]  ? do_raw_spin_unlock+0xf5/0x210
[  258.655252][ T7728]  kobject_add_internal+0x62b/0xd00
[  258.655288][ T7728]  kobject_init_and_add+0x12b/0x1a0
[  258.655328][ T7728]  ? __pfx_kobject_init_and_add+0x10/0x10
[  258.655357][ T7728]  ? __raw_spin_lock_init+0x45/0x100
[  258.655382][ T7728]  ? __init_swait_queue_head+0xa9/0x150
[  258.655408][ T7728]  gfs2_sys_fs_add+0x257/0x480
[  258.655435][ T7728]  ? is_dynamic_key+0x1ac/0x1c0
[  258.655462][ T7728]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  258.655499][ T7728]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  258.655538][ T7728]  gfs2_fill_super+0x13a7/0x21d0
[  258.655577][ T7728]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.655605][ T7728]  ? sb_set_blocksize+0x155/0x240
[  258.655629][ T7728]  ? setup_bdev_super+0x4c1/0x5b0
[  258.655653][ T7728]  get_tree_bdev_flags+0x431/0x4f0
[  258.655674][ T7728]  ? __pfx_gfs2_fill_super+0x10/0x10
[  258.655697][ T7728]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  258.655714][ T7728]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  258.655743][ T7728]  gfs2_get_tree+0x51/0x1e0
[  258.655769][ T7728]  vfs_get_tree+0x92/0x2a0
[  258.655792][ T7728]  do_new_mount+0x341/0xd30
[  258.655814][ T7728]  ? apparmor_capable+0x126/0x170
[  258.655842][ T7728]  ? __pfx_do_new_mount+0x10/0x10
[  258.655865][ T7728]  ? ns_capable+0x89/0xe0
[  258.655902][ T7728]  ? user_path_at+0xd4/0x160
[  258.655931][ T7728]  __se_sys_mount+0x31d/0x420
[  258.655961][ T7728]  ? __pfx___se_sys_mount+0x10/0x10
[  258.655993][ T7728]  ? __x64_sys_mount+0x20/0xc0
[  258.656016][ T7728]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.656037][ T7728]  do_syscall_64+0x15f/0xf80
[  258.656059][ T7728]  ? trace_irq_disable+0x3b/0x140
[  258.656083][ T7728]  ? clear_bhb_loop+0x40/0x90
[  258.656106][ T7728]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  258.656125][ T7728] RIP: 0033:0x7f48f8d9b5ca
[  258.656144][ T7728] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  258.656160][ T7728] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  258.656181][ T7728] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  258.656196][ T7728] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  258.656210][ T7728] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  258.656224][ T7728] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  258.656236][ T7728] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  258.656268][ T7728]  </TASK>
[  258.656293][ T7728] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  258.977535][ T7726] loop5: detected capacity change from 0 to 32768
[  258.987251][ T7728] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.005798][ T7726] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.013381][ T7726] CPU: 1 UID: 0 PID: 7726 Comm: syz.5.224 Not tainted syzkaller #0 PREEMPT(full) 
[  259.013406][ T7726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  259.013418][ T7726] Call Trace:
[  259.013427][ T7726]  <TASK>
[  259.013435][ T7726]  dump_stack_lvl+0xe8/0x150
[  259.013469][ T7726]  sysfs_create_dir_ns+0x271/0x2a0
[  259.013498][ T7726]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.013525][ T7726]  ? do_raw_spin_unlock+0xf5/0x210
[  259.013553][ T7726]  kobject_add_internal+0x62b/0xd00
[  259.013589][ T7726]  kobject_init_and_add+0x12b/0x1a0
[  259.013630][ T7726]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.013658][ T7726]  ? __raw_spin_lock_init+0x45/0x100
[  259.013683][ T7726]  ? __init_swait_queue_head+0xa9/0x150
[  259.013709][ T7726]  gfs2_sys_fs_add+0x257/0x480
[  259.013736][ T7726]  ? is_dynamic_key+0x1ac/0x1c0
[  259.013763][ T7726]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.013814][ T7726]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.013849][ T7726]  gfs2_fill_super+0x13a7/0x21d0
[  259.013888][ T7726]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.013915][ T7726]  ? sb_set_blocksize+0x155/0x240
[  259.013940][ T7726]  ? setup_bdev_super+0x4c1/0x5b0
[  259.013963][ T7726]  get_tree_bdev_flags+0x431/0x4f0
[  259.013983][ T7726]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.014006][ T7726]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.014024][ T7726]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  259.014052][ T7726]  gfs2_get_tree+0x51/0x1e0
[  259.014078][ T7726]  vfs_get_tree+0x92/0x2a0
[  259.014100][ T7726]  do_new_mount+0x341/0xd30
[  259.014122][ T7726]  ? apparmor_capable+0x126/0x170
[  259.014150][ T7726]  ? __pfx_do_new_mount+0x10/0x10
[  259.014174][ T7726]  ? ns_capable+0x89/0xe0
[  259.014212][ T7726]  ? user_path_at+0xd4/0x160
[  259.014240][ T7726]  __se_sys_mount+0x31d/0x420
[  259.014266][ T7726]  ? __pfx___se_sys_mount+0x10/0x10
[  259.014301][ T7726]  ? __x64_sys_mount+0x20/0xc0
[  259.014321][ T7726]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.014342][ T7726]  do_syscall_64+0x15f/0xf80
[  259.014364][ T7726]  ? trace_irq_disable+0x3b/0x140
[  259.014386][ T7726]  ? clear_bhb_loop+0x40/0x90
[  259.014405][ T7726]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.014422][ T7726] RIP: 0033:0x7fd84279b5ca
[  259.014440][ T7726] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  259.014456][ T7726] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.014475][ T7726] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  259.014489][ T7726] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  259.014502][ T7726] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  259.014514][ T7726] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  259.014526][ T7726] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  259.014555][ T7726]  </TASK>
[  259.014580][ T7726] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  259.371103][ T7726] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  259.755195][ T7732] loop1: detected capacity change from 0 to 32768
[  259.800436][ T7732] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  259.854039][ T7732] CPU: 1 UID: 0 PID: 7732 Comm: syz.1.225 Not tainted syzkaller #0 PREEMPT(full) 
[  259.854066][ T7732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  259.854079][ T7732] Call Trace:
[  259.854087][ T7732]  <TASK>
[  259.854097][ T7732]  dump_stack_lvl+0xe8/0x150
[  259.854131][ T7732]  sysfs_create_dir_ns+0x271/0x2a0
[  259.854161][ T7732]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  259.854196][ T7732]  ? do_raw_spin_unlock+0xf5/0x210
[  259.854224][ T7732]  kobject_add_internal+0x62b/0xd00
[  259.854260][ T7732]  kobject_init_and_add+0x12b/0x1a0
[  259.854292][ T7732]  ? __pfx_kobject_init_and_add+0x10/0x10
[  259.854321][ T7732]  ? __raw_spin_lock_init+0x45/0x100
[  259.854345][ T7732]  ? __init_swait_queue_head+0xa9/0x150
[  259.854371][ T7732]  gfs2_sys_fs_add+0x257/0x480
[  259.854398][ T7732]  ? is_dynamic_key+0x1ac/0x1c0
[  259.854424][ T7732]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  259.854460][ T7732]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  259.854496][ T7732]  gfs2_fill_super+0x13a7/0x21d0
[  259.854534][ T7732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.854562][ T7732]  ? sb_set_blocksize+0x155/0x240
[  259.854587][ T7732]  ? setup_bdev_super+0x4c1/0x5b0
[  259.854610][ T7732]  get_tree_bdev_flags+0x431/0x4f0
[  259.854630][ T7732]  ? __pfx_gfs2_fill_super+0x10/0x10
[  259.854653][ T7732]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  259.854671][ T7732]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  259.854700][ T7732]  gfs2_get_tree+0x51/0x1e0
[  259.854726][ T7732]  vfs_get_tree+0x92/0x2a0
[  259.854748][ T7732]  do_new_mount+0x341/0xd30
[  259.854770][ T7732]  ? apparmor_capable+0x126/0x170
[  259.854798][ T7732]  ? __pfx_do_new_mount+0x10/0x10
[  259.854822][ T7732]  ? ns_capable+0x89/0xe0
[  259.854858][ T7732]  ? user_path_at+0xd4/0x160
[  259.854887][ T7732]  __se_sys_mount+0x31d/0x420
[  259.854917][ T7732]  ? __pfx___se_sys_mount+0x10/0x10
[  259.854947][ T7732]  ? __x64_sys_mount+0x20/0xc0
[  259.854970][ T7732]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.854990][ T7732]  do_syscall_64+0x15f/0xf80
[  259.855013][ T7732]  ? trace_irq_disable+0x3b/0x140
[  259.855037][ T7732]  ? clear_bhb_loop+0x40/0x90
[  259.855060][ T7732]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  259.855080][ T7732] RIP: 0033:0x7f6fccf9b5ca
[  259.855098][ T7732] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  259.855115][ T7732] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  259.855136][ T7732] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  259.855150][ T7732] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  259.855163][ T7732] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  259.855177][ T7732] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  259.855196][ T7732] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  259.855228][ T7732]  </TASK>
[  259.855253][ T7732] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  260.210246][ T7732] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  260.783684][ T7738] loop4: detected capacity change from 0 to 32768
[  260.813358][ T7738] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  260.850635][ T7742] loop2: detected capacity change from 0 to 32768
[  260.874217][ T7738] CPU: 1 UID: 0 PID: 7738 Comm: syz.4.226 Not tainted syzkaller #0 PREEMPT(full) 
[  260.874243][ T7738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  260.874254][ T7738] Call Trace:
[  260.874261][ T7738]  <TASK>
[  260.874270][ T7738]  dump_stack_lvl+0xe8/0x150
[  260.874302][ T7738]  sysfs_create_dir_ns+0x271/0x2a0
[  260.874328][ T7738]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  260.874352][ T7738]  ? do_raw_spin_unlock+0xf5/0x210
[  260.874377][ T7738]  kobject_add_internal+0x62b/0xd00
[  260.874410][ T7738]  kobject_init_and_add+0x12b/0x1a0
[  260.874440][ T7738]  ? __pfx_kobject_init_and_add+0x10/0x10
[  260.874472][ T7738]  ? __raw_spin_lock_init+0x45/0x100
[  260.874495][ T7738]  ? __init_swait_queue_head+0xa9/0x150
[  260.874521][ T7738]  gfs2_sys_fs_add+0x257/0x480
[  260.874549][ T7738]  ? is_dynamic_key+0x1ac/0x1c0
[  260.874575][ T7738]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  260.874611][ T7738]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  260.874646][ T7738]  gfs2_fill_super+0x13a7/0x21d0
[  260.874684][ T7738]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.874712][ T7738]  ? sb_set_blocksize+0x155/0x240
[  260.874736][ T7738]  ? setup_bdev_super+0x4c1/0x5b0
[  260.874759][ T7738]  get_tree_bdev_flags+0x431/0x4f0
[  260.874780][ T7738]  ? __pfx_gfs2_fill_super+0x10/0x10
[  260.874803][ T7738]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  260.874821][ T7738]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  260.874850][ T7738]  gfs2_get_tree+0x51/0x1e0
[  260.874877][ T7738]  vfs_get_tree+0x92/0x2a0
[  260.874899][ T7738]  do_new_mount+0x341/0xd30
[  260.874922][ T7738]  ? apparmor_capable+0x126/0x170
[  260.874950][ T7738]  ? __pfx_do_new_mount+0x10/0x10
[  260.874973][ T7738]  ? ns_capable+0x89/0xe0
[  260.875010][ T7738]  ? user_path_at+0xd4/0x160
[  260.875039][ T7738]  __se_sys_mount+0x31d/0x420
[  260.875069][ T7738]  ? __pfx___se_sys_mount+0x10/0x10
[  260.875100][ T7738]  ? __x64_sys_mount+0x20/0xc0
[  260.875124][ T7738]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.875144][ T7738]  do_syscall_64+0x15f/0xf80
[  260.875168][ T7738]  ? trace_irq_disable+0x3b/0x140
[  260.875191][ T7738]  ? clear_bhb_loop+0x40/0x90
[  260.875222][ T7738]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  260.875240][ T7738] RIP: 0033:0x7f91c659b5ca
[  260.875259][ T7738] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  260.875276][ T7738] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  260.875298][ T7738] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  260.875312][ T7738] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  260.875327][ T7738] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  260.875339][ T7738] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  260.875352][ T7738] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  260.875382][ T7738]  </TASK>
[  260.908882][ T7738] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.088715][ T7744] loop0: detected capacity change from 0 to 32768
[  261.141156][ T7738] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.197254][ T7746] loop5: detected capacity change from 0 to 32768
[  261.228259][ T7742] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.237293][ T7742] CPU: 1 UID: 0 PID: 7742 Comm: syz.2.227 Not tainted syzkaller #0 PREEMPT(full) 
[  261.237324][ T7742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  261.237335][ T7742] Call Trace:
[  261.237342][ T7742]  <TASK>
[  261.237351][ T7742]  dump_stack_lvl+0xe8/0x150
[  261.237383][ T7742]  sysfs_create_dir_ns+0x271/0x2a0
[  261.237413][ T7742]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.237440][ T7742]  ? do_raw_spin_unlock+0xf5/0x210
[  261.237466][ T7742]  kobject_add_internal+0x62b/0xd00
[  261.237502][ T7742]  kobject_init_and_add+0x12b/0x1a0
[  261.237532][ T7742]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.237557][ T7742]  ? __raw_spin_lock_init+0x45/0x100
[  261.237580][ T7742]  ? __init_swait_queue_head+0xa9/0x150
[  261.237604][ T7742]  gfs2_sys_fs_add+0x257/0x480
[  261.237630][ T7742]  ? is_dynamic_key+0x1ac/0x1c0
[  261.237654][ T7742]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.237687][ T7742]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.237719][ T7742]  gfs2_fill_super+0x13a7/0x21d0
[  261.237756][ T7742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.237783][ T7742]  ? sb_set_blocksize+0x155/0x240
[  261.237806][ T7742]  ? setup_bdev_super+0x4c1/0x5b0
[  261.237826][ T7742]  get_tree_bdev_flags+0x431/0x4f0
[  261.237846][ T7742]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.237868][ T7742]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.237884][ T7742]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  261.237914][ T7742]  gfs2_get_tree+0x51/0x1e0
[  261.237938][ T7742]  vfs_get_tree+0x92/0x2a0
[  261.237959][ T7742]  do_new_mount+0x341/0xd30
[  261.237981][ T7742]  ? apparmor_capable+0x126/0x170
[  261.238010][ T7742]  ? __pfx_do_new_mount+0x10/0x10
[  261.238033][ T7742]  ? ns_capable+0x89/0xe0
[  261.238067][ T7742]  ? user_path_at+0xd4/0x160
[  261.238096][ T7742]  __se_sys_mount+0x31d/0x420
[  261.238122][ T7742]  ? __pfx___se_sys_mount+0x10/0x10
[  261.238149][ T7742]  ? __x64_sys_mount+0x20/0xc0
[  261.238178][ T7742]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.238199][ T7742]  do_syscall_64+0x15f/0xf80
[  261.238220][ T7742]  ? trace_irq_disable+0x3b/0x140
[  261.238243][ T7742]  ? clear_bhb_loop+0x40/0x90
[  261.238266][ T7742]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.238285][ T7742] RIP: 0033:0x7f48f8d9b5ca
[  261.238304][ T7742] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  261.238320][ T7742] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.238342][ T7742] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  261.238356][ T7742] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  261.238370][ T7742] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  261.238383][ T7742] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  261.238396][ T7742] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  261.238427][ T7742]  </TASK>
[  261.645511][ T7742] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.692726][ T7746] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.713379][ T7746] CPU: 0 UID: 0 PID: 7746 Comm: syz.5.229 Not tainted syzkaller #0 PREEMPT(full) 
[  261.713407][ T7746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  261.713420][ T7746] Call Trace:
[  261.713429][ T7746]  <TASK>
[  261.713437][ T7746]  dump_stack_lvl+0xe8/0x150
[  261.713471][ T7746]  sysfs_create_dir_ns+0x271/0x2a0
[  261.713500][ T7746]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.713527][ T7746]  ? do_raw_spin_unlock+0xf5/0x210
[  261.713555][ T7746]  kobject_add_internal+0x62b/0xd00
[  261.713591][ T7746]  kobject_init_and_add+0x12b/0x1a0
[  261.713624][ T7746]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.713652][ T7746]  ? __raw_spin_lock_init+0x45/0x100
[  261.713676][ T7746]  ? __init_swait_queue_head+0xa9/0x150
[  261.713702][ T7746]  gfs2_sys_fs_add+0x257/0x480
[  261.713728][ T7746]  ? is_dynamic_key+0x1ac/0x1c0
[  261.713756][ T7746]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.713791][ T7746]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.713826][ T7746]  gfs2_fill_super+0x13a7/0x21d0
[  261.713863][ T7746]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.713891][ T7746]  ? sb_set_blocksize+0x155/0x240
[  261.713915][ T7746]  ? setup_bdev_super+0x4c1/0x5b0
[  261.713938][ T7746]  get_tree_bdev_flags+0x431/0x4f0
[  261.713959][ T7746]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.713981][ T7746]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.713999][ T7746]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  261.714028][ T7746]  gfs2_get_tree+0x51/0x1e0
[  261.714090][ T7746]  vfs_get_tree+0x92/0x2a0
[  261.714112][ T7746]  do_new_mount+0x341/0xd30
[  261.714134][ T7746]  ? apparmor_capable+0x126/0x170
[  261.714162][ T7746]  ? __pfx_do_new_mount+0x10/0x10
[  261.714185][ T7746]  ? ns_capable+0x89/0xe0
[  261.714222][ T7746]  ? user_path_at+0xd4/0x160
[  261.714251][ T7746]  __se_sys_mount+0x31d/0x420
[  261.714282][ T7746]  ? __pfx___se_sys_mount+0x10/0x10
[  261.714312][ T7746]  ? __x64_sys_mount+0x20/0xc0
[  261.714336][ T7746]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.714358][ T7746]  do_syscall_64+0x15f/0xf80
[  261.714380][ T7746]  ? trace_irq_disable+0x3b/0x140
[  261.714403][ T7746]  ? clear_bhb_loop+0x40/0x90
[  261.714426][ T7746]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.714445][ T7746] RIP: 0033:0x7fd84279b5ca
[  261.714464][ T7746] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  261.714481][ T7746] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.714501][ T7746] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  261.714516][ T7746] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  261.714530][ T7746] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  261.714544][ T7746] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  261.714560][ T7746] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  261.714591][ T7746]  </TASK>
[  261.716223][ T7746] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  261.775890][ T7742] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.824330][ T7744] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  261.830733][ T7746] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  261.870552][ T7744] CPU: 0 UID: 0 PID: 7744 Comm: syz.0.228 Not tainted syzkaller #0 PREEMPT(full) 
[  261.870578][ T7744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  261.870591][ T7744] Call Trace:
[  261.870599][ T7744]  <TASK>
[  261.870607][ T7744]  dump_stack_lvl+0xe8/0x150
[  261.870640][ T7744]  sysfs_create_dir_ns+0x271/0x2a0
[  261.870669][ T7744]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  261.870695][ T7744]  ? do_raw_spin_unlock+0xf5/0x210
[  261.870722][ T7744]  kobject_add_internal+0x62b/0xd00
[  261.870757][ T7744]  kobject_init_and_add+0x12b/0x1a0
[  261.870788][ T7744]  ? __pfx_kobject_init_and_add+0x10/0x10
[  261.870816][ T7744]  ? __raw_spin_lock_init+0x45/0x100
[  261.870839][ T7744]  ? __init_swait_queue_head+0xa9/0x150
[  261.870864][ T7744]  gfs2_sys_fs_add+0x257/0x480
[  261.870891][ T7744]  ? is_dynamic_key+0x1ac/0x1c0
[  261.870916][ T7744]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  261.870952][ T7744]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  261.870986][ T7744]  gfs2_fill_super+0x13a7/0x21d0
[  261.871024][ T7744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.871050][ T7744]  ? sb_set_blocksize+0x155/0x240
[  261.871073][ T7744]  ? setup_bdev_super+0x4c1/0x5b0
[  261.871101][ T7744]  get_tree_bdev_flags+0x431/0x4f0
[  261.871121][ T7744]  ? __pfx_gfs2_fill_super+0x10/0x10
[  261.871143][ T7744]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  261.871159][ T7744]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  261.871188][ T7744]  gfs2_get_tree+0x51/0x1e0
[  261.871213][ T7744]  vfs_get_tree+0x92/0x2a0
[  261.871235][ T7744]  do_new_mount+0x341/0xd30
[  261.871256][ T7744]  ? apparmor_capable+0x126/0x170
[  261.871283][ T7744]  ? __pfx_do_new_mount+0x10/0x10
[  261.871305][ T7744]  ? ns_capable+0x89/0xe0
[  261.871341][ T7744]  ? user_path_at+0xd4/0x160
[  261.871369][ T7744]  __se_sys_mount+0x31d/0x420
[  261.871398][ T7744]  ? __pfx___se_sys_mount+0x10/0x10
[  261.871428][ T7744]  ? __x64_sys_mount+0x20/0xc0
[  261.871450][ T7744]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
2026/03/28 19:51:17 executed programs: 224
[  261.871470][ T7744]  do_syscall_64+0x15f/0xf80
[  261.871492][ T7744]  ? trace_irq_disable+0x3b/0x140
[  261.871515][ T7744]  ? clear_bhb_loop+0x40/0x90
[  261.871536][ T7744]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  261.871555][ T7744] RIP: 0033:0x7f73fed9b5ca
[  261.871573][ T7744] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  261.871590][ T7744] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  261.871610][ T7744] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  261.871624][ T7744] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  261.871637][ T7744] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  261.871650][ T7744] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  261.871662][ T7744] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  261.871692][ T7744]  </TASK>
[  261.871716][ T7744] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.373347][ T7750] loop1: detected capacity change from 0 to 32768
[  262.395730][ T7744] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  262.402713][ T7750] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  262.411334][ T7750] CPU: 0 UID: 0 PID: 7750 Comm: syz.1.230 Not tainted syzkaller #0 PREEMPT(full) 
[  262.411361][ T7750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  262.411372][ T7750] Call Trace:
[  262.411381][ T7750]  <TASK>
[  262.411389][ T7750]  dump_stack_lvl+0xe8/0x150
[  262.411433][ T7750]  sysfs_create_dir_ns+0x271/0x2a0
[  262.411462][ T7750]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  262.411489][ T7750]  ? do_raw_spin_unlock+0xf5/0x210
[  262.411516][ T7750]  kobject_add_internal+0x62b/0xd00
[  262.411551][ T7750]  kobject_init_and_add+0x12b/0x1a0
[  262.411582][ T7750]  ? __pfx_kobject_init_and_add+0x10/0x10
[  262.411610][ T7750]  ? __raw_spin_lock_init+0x45/0x100
[  262.411638][ T7750]  ? __init_swait_queue_head+0xa9/0x150
[  262.411664][ T7750]  gfs2_sys_fs_add+0x257/0x480
[  262.411691][ T7750]  ? is_dynamic_key+0x1ac/0x1c0
[  262.411725][ T7750]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  262.411761][ T7750]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  262.411796][ T7750]  gfs2_fill_super+0x13a7/0x21d0
[  262.411834][ T7750]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.411861][ T7750]  ? sb_set_blocksize+0x155/0x240
[  262.411886][ T7750]  ? setup_bdev_super+0x4c1/0x5b0
[  262.411909][ T7750]  get_tree_bdev_flags+0x431/0x4f0
[  262.411929][ T7750]  ? __pfx_gfs2_fill_super+0x10/0x10
[  262.411951][ T7750]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  262.411968][ T7750]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  262.411997][ T7750]  gfs2_get_tree+0x51/0x1e0
[  262.412023][ T7750]  vfs_get_tree+0x92/0x2a0
[  262.412045][ T7750]  do_new_mount+0x341/0xd30
[  262.412067][ T7750]  ? apparmor_capable+0x126/0x170
[  262.412095][ T7750]  ? __pfx_do_new_mount+0x10/0x10
[  262.412118][ T7750]  ? ns_capable+0x89/0xe0
[  262.412155][ T7750]  ? user_path_at+0xd4/0x160
[  262.412184][ T7750]  __se_sys_mount+0x31d/0x420
[  262.412213][ T7750]  ? __pfx___se_sys_mount+0x10/0x10
[  262.412244][ T7750]  ? __x64_sys_mount+0x20/0xc0
[  262.412267][ T7750]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.412288][ T7750]  do_syscall_64+0x15f/0xf80
[  262.412311][ T7750]  ? trace_irq_disable+0x3b/0x140
[  262.412334][ T7750]  ? clear_bhb_loop+0x40/0x90
[  262.412356][ T7750]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  262.412375][ T7750] RIP: 0033:0x7f6fccf9b5ca
[  262.412393][ T7750] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  262.412409][ T7750] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  262.412436][ T7750] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  262.412450][ T7750] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  262.412464][ T7750] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  262.412477][ T7750] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  262.412490][ T7750] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  262.412520][ T7750]  </TASK>
[  262.412578][ T7750] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  262.757736][ T7750] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  263.725714][ T7760] loop4: detected capacity change from 0 to 32768
[  263.755436][ T7760] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  263.806469][ T7760] CPU: 0 UID: 0 PID: 7760 Comm: syz.4.231 Not tainted syzkaller #0 PREEMPT(full) 
[  263.806497][ T7760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  263.806510][ T7760] Call Trace:
[  263.806517][ T7760]  <TASK>
[  263.806527][ T7760]  dump_stack_lvl+0xe8/0x150
[  263.806571][ T7760]  sysfs_create_dir_ns+0x271/0x2a0
[  263.806610][ T7760]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  263.806638][ T7760]  ? do_raw_spin_unlock+0xf5/0x210
[  263.806666][ T7760]  kobject_add_internal+0x62b/0xd00
[  263.806702][ T7760]  kobject_init_and_add+0x12b/0x1a0
[  263.806734][ T7760]  ? __pfx_kobject_init_and_add+0x10/0x10
[  263.806763][ T7760]  ? __raw_spin_lock_init+0x45/0x100
[  263.806797][ T7760]  ? __init_swait_queue_head+0xa9/0x150
[  263.806832][ T7760]  gfs2_sys_fs_add+0x257/0x480
[  263.806860][ T7760]  ? is_dynamic_key+0x1ac/0x1c0
[  263.806887][ T7760]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  263.806922][ T7760]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  263.806957][ T7760]  gfs2_fill_super+0x13a7/0x21d0
[  263.806995][ T7760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.807022][ T7760]  ? sb_set_blocksize+0x155/0x240
[  263.807046][ T7760]  ? setup_bdev_super+0x4c1/0x5b0
[  263.807070][ T7760]  get_tree_bdev_flags+0x431/0x4f0
[  263.807090][ T7760]  ? __pfx_gfs2_fill_super+0x10/0x10
[  263.807113][ T7760]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  263.807130][ T7760]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  263.807158][ T7760]  gfs2_get_tree+0x51/0x1e0
[  263.807185][ T7760]  vfs_get_tree+0x92/0x2a0
[  263.807208][ T7760]  do_new_mount+0x341/0xd30
[  263.807230][ T7760]  ? apparmor_capable+0x126/0x170
[  263.807258][ T7760]  ? __pfx_do_new_mount+0x10/0x10
[  263.807282][ T7760]  ? ns_capable+0x89/0xe0
[  263.807318][ T7760]  ? user_path_at+0xd4/0x160
[  263.807346][ T7760]  __se_sys_mount+0x31d/0x420
[  263.807376][ T7760]  ? __pfx___se_sys_mount+0x10/0x10
[  263.807406][ T7760]  ? __x64_sys_mount+0x20/0xc0
[  263.807429][ T7760]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.807449][ T7760]  do_syscall_64+0x15f/0xf80
[  263.807472][ T7760]  ? trace_irq_disable+0x3b/0x140
[  263.807495][ T7760]  ? clear_bhb_loop+0x40/0x90
[  263.807518][ T7760]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  263.807537][ T7760] RIP: 0033:0x7f91c659b5ca
[  263.807556][ T7760] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  263.807573][ T7760] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  263.807608][ T7760] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  263.807622][ T7760] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  263.807635][ T7760] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  263.807648][ T7760] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  263.807661][ T7760] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  263.807691][ T7760]  </TASK>
[  263.877400][ T7760] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.146462][ T7764] loop2: detected capacity change from 0 to 32768
[  264.156956][ T7760] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.196285][ T7764] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.211093][ T7769] loop5: detected capacity change from 0 to 32768
[  264.226024][ T7770] loop1: detected capacity change from 0 to 32768
[  264.255914][ T7770] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.259557][ T7764] CPU: 0 UID: 0 PID: 7764 Comm: syz.2.232 Not tainted syzkaller #0 PREEMPT(full) 
[  264.259582][ T7764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  264.259595][ T7764] Call Trace:
[  264.259602][ T7764]  <TASK>
[  264.259611][ T7764]  dump_stack_lvl+0xe8/0x150
[  264.259644][ T7764]  sysfs_create_dir_ns+0x271/0x2a0
[  264.259671][ T7764]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.259697][ T7764]  ? do_raw_spin_unlock+0xf5/0x210
[  264.259724][ T7764]  kobject_add_internal+0x62b/0xd00
[  264.259765][ T7764]  kobject_init_and_add+0x12b/0x1a0
[  264.259796][ T7764]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.259823][ T7764]  ? __raw_spin_lock_init+0x45/0x100
[  264.259846][ T7764]  ? __init_swait_queue_head+0xa9/0x150
[  264.259871][ T7764]  gfs2_sys_fs_add+0x257/0x480
[  264.259898][ T7764]  ? is_dynamic_key+0x1ac/0x1c0
[  264.259923][ T7764]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.259958][ T7764]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.259992][ T7764]  gfs2_fill_super+0x13a7/0x21d0
[  264.260029][ T7764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.260056][ T7764]  ? sb_set_blocksize+0x155/0x240
[  264.260078][ T7764]  ? setup_bdev_super+0x4c1/0x5b0
[  264.260100][ T7764]  get_tree_bdev_flags+0x431/0x4f0
[  264.260121][ T7764]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.260142][ T7764]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.260159][ T7764]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  264.260187][ T7764]  gfs2_get_tree+0x51/0x1e0
[  264.260212][ T7764]  vfs_get_tree+0x92/0x2a0
[  264.260234][ T7764]  do_new_mount+0x341/0xd30
[  264.260255][ T7764]  ? apparmor_capable+0x126/0x170
[  264.260282][ T7764]  ? __pfx_do_new_mount+0x10/0x10
[  264.260304][ T7764]  ? ns_capable+0x89/0xe0
[  264.260340][ T7764]  ? user_path_at+0xd4/0x160
[  264.260388][ T7764]  __se_sys_mount+0x31d/0x420
[  264.260418][ T7764]  ? __pfx___se_sys_mount+0x10/0x10
[  264.260447][ T7764]  ? __x64_sys_mount+0x20/0xc0
[  264.260468][ T7764]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.260489][ T7764]  do_syscall_64+0x15f/0xf80
[  264.260521][ T7764]  ? trace_irq_disable+0x3b/0x140
[  264.260543][ T7764]  ? clear_bhb_loop+0x40/0x90
[  264.260572][ T7764]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.260591][ T7764] RIP: 0033:0x7f48f8d9b5ca
[  264.260607][ T7764] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  264.260624][ T7764] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.260645][ T7764] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  264.260658][ T7764] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  264.260679][ T7764] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  264.260692][ T7764] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  264.260705][ T7764] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  264.260734][ T7764]  </TASK>
[  264.272901][ T7764] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.376789][ T7769] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  264.383977][ T7764] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.412433][ T7770] CPU: 1 UID: 0 PID: 7770 Comm: syz.1.234 Not tainted syzkaller #0 PREEMPT(full) 
[  264.412457][ T7770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  264.412468][ T7770] Call Trace:
[  264.412476][ T7770]  <TASK>
[  264.412483][ T7770]  dump_stack_lvl+0xe8/0x150
[  264.412516][ T7770]  sysfs_create_dir_ns+0x271/0x2a0
[  264.412544][ T7770]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.412570][ T7770]  ? do_raw_spin_unlock+0xf5/0x210
[  264.412598][ T7770]  kobject_add_internal+0x62b/0xd00
[  264.412633][ T7770]  kobject_init_and_add+0x12b/0x1a0
[  264.412664][ T7770]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.412691][ T7770]  ? __raw_spin_lock_init+0x45/0x100
[  264.412714][ T7770]  ? __init_swait_queue_head+0xa9/0x150
[  264.412740][ T7770]  gfs2_sys_fs_add+0x257/0x480
[  264.412775][ T7770]  ? is_dynamic_key+0x1ac/0x1c0
[  264.412801][ T7770]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.412835][ T7770]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.412870][ T7770]  gfs2_fill_super+0x13a7/0x21d0
[  264.412906][ T7770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.412933][ T7770]  ? sb_set_blocksize+0x155/0x240
[  264.412957][ T7770]  ? setup_bdev_super+0x4c1/0x5b0
[  264.412979][ T7770]  get_tree_bdev_flags+0x431/0x4f0
[  264.412999][ T7770]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.413020][ T7770]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.413038][ T7770]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  264.413065][ T7770]  gfs2_get_tree+0x51/0x1e0
[  264.413090][ T7770]  vfs_get_tree+0x92/0x2a0
[  264.413110][ T7770]  do_new_mount+0x341/0xd30
[  264.413132][ T7770]  ? apparmor_capable+0x126/0x170
[  264.413159][ T7770]  ? __pfx_do_new_mount+0x10/0x10
[  264.413181][ T7770]  ? ns_capable+0x89/0xe0
[  264.413217][ T7770]  ? user_path_at+0xd4/0x160
[  264.413249][ T7770]  __se_sys_mount+0x31d/0x420
[  264.413277][ T7770]  ? __pfx___se_sys_mount+0x10/0x10
[  264.413307][ T7770]  ? __x64_sys_mount+0x20/0xc0
[  264.413329][ T7770]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.413349][ T7770]  do_syscall_64+0x15f/0xf80
[  264.413372][ T7770]  ? trace_irq_disable+0x3b/0x140
[  264.413393][ T7770]  ? clear_bhb_loop+0x40/0x90
[  264.413416][ T7770]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.413434][ T7770] RIP: 0033:0x7f6fccf9b5ca
[  264.413452][ T7770] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  264.413468][ T7770] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.413488][ T7770] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  264.413502][ T7770] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  264.413515][ T7770] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  264.413528][ T7770] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  264.413540][ T7770] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  264.413570][ T7770]  </TASK>
[  264.413604][ T7770] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.422182][ T7769] CPU: 0 UID: 0 PID: 7769 Comm: syz.5.235 Not tainted syzkaller #0 PREEMPT(full) 
[  264.422208][ T7769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  264.422218][ T7769] Call Trace:
[  264.422226][ T7769]  <TASK>
[  264.422234][ T7769]  dump_stack_lvl+0xe8/0x150
[  264.422268][ T7769]  sysfs_create_dir_ns+0x271/0x2a0
[  264.422296][ T7769]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  264.422323][ T7769]  ? do_raw_spin_unlock+0xf5/0x210
[  264.422350][ T7769]  kobject_add_internal+0x62b/0xd00
[  264.422386][ T7769]  kobject_init_and_add+0x12b/0x1a0
[  264.422416][ T7769]  ? __pfx_kobject_init_and_add+0x10/0x10
[  264.422443][ T7769]  ? __raw_spin_lock_init+0x45/0x100
[  264.422467][ T7769]  ? __init_swait_queue_head+0xa9/0x150
[  264.422494][ T7769]  gfs2_sys_fs_add+0x257/0x480
[  264.422519][ T7769]  ? is_dynamic_key+0x1ac/0x1c0
[  264.422543][ T7769]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  264.422577][ T7769]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  264.422619][ T7769]  gfs2_fill_super+0x13a7/0x21d0
[  264.422658][ T7769]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.422686][ T7769]  ? sb_set_blocksize+0x155/0x240
[  264.422710][ T7769]  ? setup_bdev_super+0x4c1/0x5b0
[  264.422733][ T7769]  get_tree_bdev_flags+0x431/0x4f0
[  264.422753][ T7769]  ? __pfx_gfs2_fill_super+0x10/0x10
[  264.422775][ T7769]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  264.422793][ T7769]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  264.422822][ T7769]  gfs2_get_tree+0x51/0x1e0
[  264.422852][ T7769]  vfs_get_tree+0x92/0x2a0
[  264.422874][ T7769]  do_new_mount+0x341/0xd30
[  264.422894][ T7769]  ? apparmor_capable+0x126/0x170
[  264.422921][ T7769]  ? __pfx_do_new_mount+0x10/0x10
[  264.422945][ T7769]  ? ns_capable+0x89/0xe0
[  264.422981][ T7769]  ? user_path_at+0xd4/0x160
[  264.423009][ T7769]  __se_sys_mount+0x31d/0x420
[  264.423036][ T7769]  ? __pfx___se_sys_mount+0x10/0x10
[  264.423063][ T7769]  ? __x64_sys_mount+0x20/0xc0
[  264.423085][ T7769]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.423106][ T7769]  do_syscall_64+0x15f/0xf80
[  264.423128][ T7769]  ? trace_irq_disable+0x3b/0x140
[  264.423150][ T7769]  ? clear_bhb_loop+0x40/0x90
[  264.423172][ T7769]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  264.423190][ T7769] RIP: 0033:0x7fd84279b5ca
[  264.423208][ T7769] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  264.423224][ T7769] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  264.423245][ T7769] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  264.423259][ T7769] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  264.423272][ T7769] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  264.423285][ T7769] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  264.423298][ T7769] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  264.423327][ T7769]  </TASK>
[  264.423385][ T7769] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  264.447546][ T7770] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  264.585464][ T7766] loop0: detected capacity change from 0 to 32768
[  264.597235][ T7769] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  265.237470][ T7766] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  265.270224][ T7766] CPU: 1 UID: 0 PID: 7766 Comm: syz.0.233 Not tainted syzkaller #0 PREEMPT(full) 
[  265.270250][ T7766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  265.270263][ T7766] Call Trace:
[  265.270271][ T7766]  <TASK>
[  265.270280][ T7766]  dump_stack_lvl+0xe8/0x150
[  265.270313][ T7766]  sysfs_create_dir_ns+0x271/0x2a0
[  265.270342][ T7766]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  265.270369][ T7766]  ? do_raw_spin_unlock+0xf5/0x210
[  265.270397][ T7766]  kobject_add_internal+0x62b/0xd00
[  265.270438][ T7766]  kobject_init_and_add+0x12b/0x1a0
[  265.270468][ T7766]  ? __pfx_kobject_init_and_add+0x10/0x10
[  265.270495][ T7766]  ? __raw_spin_lock_init+0x45/0x100
[  265.270517][ T7766]  ? __init_swait_queue_head+0xa9/0x150
[  265.270539][ T7766]  gfs2_sys_fs_add+0x257/0x480
[  265.270565][ T7766]  ? is_dynamic_key+0x1ac/0x1c0
[  265.270590][ T7766]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  265.270626][ T7766]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  265.270661][ T7766]  gfs2_fill_super+0x13a7/0x21d0
[  265.270700][ T7766]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.270734][ T7766]  ? sb_set_blocksize+0x155/0x240
[  265.270756][ T7766]  ? setup_bdev_super+0x4c1/0x5b0
[  265.270778][ T7766]  get_tree_bdev_flags+0x431/0x4f0
[  265.270798][ T7766]  ? __pfx_gfs2_fill_super+0x10/0x10
[  265.270820][ T7766]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  265.270837][ T7766]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  265.270866][ T7766]  gfs2_get_tree+0x51/0x1e0
[  265.270890][ T7766]  vfs_get_tree+0x92/0x2a0
[  265.270913][ T7766]  do_new_mount+0x341/0xd30
[  265.270935][ T7766]  ? apparmor_capable+0x126/0x170
[  265.270963][ T7766]  ? __pfx_do_new_mount+0x10/0x10
[  265.270987][ T7766]  ? ns_capable+0x89/0xe0
[  265.271024][ T7766]  ? user_path_at+0xd4/0x160
[  265.271053][ T7766]  __se_sys_mount+0x31d/0x420
[  265.271083][ T7766]  ? __pfx___se_sys_mount+0x10/0x10
[  265.271113][ T7766]  ? __x64_sys_mount+0x20/0xc0
[  265.271136][ T7766]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.271157][ T7766]  do_syscall_64+0x15f/0xf80
[  265.271180][ T7766]  ? trace_irq_disable+0x3b/0x140
[  265.271203][ T7766]  ? clear_bhb_loop+0x40/0x90
[  265.271226][ T7766]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  265.271246][ T7766] RIP: 0033:0x7f73fed9b5ca
[  265.271265][ T7766] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  265.271283][ T7766] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  265.271304][ T7766] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  265.271319][ T7766] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  265.271332][ T7766] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  265.271346][ T7766] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  265.271358][ T7766] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  265.271389][ T7766]  </TASK>
[  265.271477][ T7766] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  265.708021][ T7766] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  266.871764][ T7784] loop4: detected capacity change from 0 to 32768
[  266.909138][ T7784] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  266.910693][ T7786] loop1: detected capacity change from 0 to 32768
[  266.929031][ T7787] loop2: detected capacity change from 0 to 32768
[  266.938972][ T7784] CPU: 1 UID: 0 PID: 7784 Comm: syz.4.236 Not tainted syzkaller #0 PREEMPT(full) 
[  266.938998][ T7784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  266.939010][ T7784] Call Trace:
[  266.939018][ T7784]  <TASK>
[  266.939027][ T7784]  dump_stack_lvl+0xe8/0x150
[  266.939061][ T7784]  sysfs_create_dir_ns+0x271/0x2a0
[  266.939089][ T7784]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  266.939116][ T7784]  ? do_raw_spin_unlock+0xf5/0x210
[  266.939143][ T7784]  kobject_add_internal+0x62b/0xd00
[  266.939179][ T7784]  kobject_init_and_add+0x12b/0x1a0
[  266.939211][ T7784]  ? __pfx_kobject_init_and_add+0x10/0x10
[  266.939239][ T7784]  ? __raw_spin_lock_init+0x45/0x100
[  266.939271][ T7784]  ? __init_swait_queue_head+0xa9/0x150
[  266.939297][ T7784]  gfs2_sys_fs_add+0x257/0x480
[  266.939324][ T7784]  ? is_dynamic_key+0x1ac/0x1c0
[  266.939350][ T7784]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  266.939386][ T7784]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  266.939423][ T7784]  gfs2_fill_super+0x13a7/0x21d0
[  266.939461][ T7784]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.939489][ T7784]  ? sb_set_blocksize+0x155/0x240
[  266.939513][ T7784]  ? setup_bdev_super+0x4c1/0x5b0
[  266.939537][ T7784]  get_tree_bdev_flags+0x431/0x4f0
[  266.939557][ T7784]  ? __pfx_gfs2_fill_super+0x10/0x10
[  266.939580][ T7784]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  266.939598][ T7784]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  266.939626][ T7784]  gfs2_get_tree+0x51/0x1e0
[  266.939653][ T7784]  vfs_get_tree+0x92/0x2a0
[  266.939675][ T7784]  do_new_mount+0x341/0xd30
[  266.939697][ T7784]  ? apparmor_capable+0x126/0x170
[  266.939725][ T7784]  ? __pfx_do_new_mount+0x10/0x10
[  266.939748][ T7784]  ? ns_capable+0x89/0xe0
[  266.939785][ T7784]  ? user_path_at+0xd4/0x160
[  266.939814][ T7784]  __se_sys_mount+0x31d/0x420
[  266.939844][ T7784]  ? __pfx___se_sys_mount+0x10/0x10
[  266.939875][ T7784]  ? __x64_sys_mount+0x20/0xc0
[  266.939899][ T7784]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.939919][ T7784]  do_syscall_64+0x15f/0xf80
[  266.939942][ T7784]  ? trace_irq_disable+0x3b/0x140
[  266.939966][ T7784]  ? clear_bhb_loop+0x40/0x90
[  266.939989][ T7784]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  266.940008][ T7784] RIP: 0033:0x7f91c659b5ca
[  266.940027][ T7784] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  266.940044][ T7784] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.940065][ T7784] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  266.940079][ T7784] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  266.940093][ T7784] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  266.940125][ T7784] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  266.940137][ T7784] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  266.940168][ T7784]  </TASK>
[  266.940193][ T7784] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.005032][ T7787] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.078780][ T7786] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.080808][ T7787] CPU: 0 UID: 0 PID: 7787 Comm: syz.2.237 Not tainted syzkaller #0 PREEMPT(full) 
[  267.080831][ T7787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  267.080844][ T7787] Call Trace:
[  267.080851][ T7787]  <TASK>
[  267.080860][ T7787]  dump_stack_lvl+0xe8/0x150
[  267.080892][ T7787]  sysfs_create_dir_ns+0x271/0x2a0
[  267.080921][ T7787]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.080947][ T7787]  ? do_raw_spin_unlock+0xf5/0x210
[  267.080973][ T7787]  kobject_add_internal+0x62b/0xd00
[  267.081008][ T7787]  kobject_init_and_add+0x12b/0x1a0
[  267.081039][ T7787]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.081066][ T7787]  ? __raw_spin_lock_init+0x45/0x100
[  267.081089][ T7787]  ? __init_swait_queue_head+0xa9/0x150
[  267.081115][ T7787]  gfs2_sys_fs_add+0x257/0x480
[  267.081141][ T7787]  ? is_dynamic_key+0x1ac/0x1c0
[  267.081166][ T7787]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.081201][ T7787]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.081234][ T7787]  gfs2_fill_super+0x13a7/0x21d0
[  267.081271][ T7787]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.081298][ T7787]  ? sb_set_blocksize+0x155/0x240
[  267.081321][ T7787]  ? setup_bdev_super+0x4c1/0x5b0
[  267.081343][ T7787]  get_tree_bdev_flags+0x431/0x4f0
[  267.081363][ T7787]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.081384][ T7787]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.081401][ T7787]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  267.081429][ T7787]  gfs2_get_tree+0x51/0x1e0
[  267.081454][ T7787]  vfs_get_tree+0x92/0x2a0
[  267.081475][ T7787]  do_new_mount+0x341/0xd30
[  267.081502][ T7787]  ? apparmor_capable+0x126/0x170
[  267.081529][ T7787]  ? __pfx_do_new_mount+0x10/0x10
[  267.081552][ T7787]  ? ns_capable+0x89/0xe0
[  267.081587][ T7787]  ? user_path_at+0xd4/0x160
[  267.081616][ T7787]  __se_sys_mount+0x31d/0x420
[  267.081645][ T7787]  ? __pfx___se_sys_mount+0x10/0x10
[  267.081674][ T7787]  ? __x64_sys_mount+0x20/0xc0
[  267.081696][ T7787]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.081716][ T7787]  do_syscall_64+0x15f/0xf80
[  267.081738][ T7787]  ? trace_irq_disable+0x3b/0x140
[  267.081761][ T7787]  ? clear_bhb_loop+0x40/0x90
[  267.081783][ T7787]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.081801][ T7787] RIP: 0033:0x7f48f8d9b5ca
[  267.081819][ T7787] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  267.081835][ T7787] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.081855][ T7787] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  267.081869][ T7787] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  267.081883][ T7787] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  267.081895][ T7787] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  267.081908][ T7787] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  267.081937][ T7787]  </TASK>
[  267.081960][ T7787] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.231444][ T7786] CPU: 1 UID: 0 PID: 7786 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT(full) 
[  267.231474][ T7786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  267.231486][ T7786] Call Trace:
[  267.231494][ T7786]  <TASK>
[  267.231502][ T7786]  dump_stack_lvl+0xe8/0x150
[  267.231535][ T7786]  sysfs_create_dir_ns+0x271/0x2a0
[  267.231562][ T7786]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  267.231588][ T7786]  ? do_raw_spin_unlock+0xf5/0x210
[  267.231614][ T7786]  kobject_add_internal+0x62b/0xd00
[  267.231649][ T7786]  kobject_init_and_add+0x12b/0x1a0
[  267.231681][ T7786]  ? __pfx_kobject_init_and_add+0x10/0x10
[  267.231708][ T7786]  ? __raw_spin_lock_init+0x45/0x100
[  267.231732][ T7786]  ? __init_swait_queue_head+0xa9/0x150
[  267.231758][ T7786]  gfs2_sys_fs_add+0x257/0x480
[  267.231784][ T7786]  ? is_dynamic_key+0x1ac/0x1c0
[  267.231809][ T7786]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  267.231844][ T7786]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  267.231879][ T7786]  gfs2_fill_super+0x13a7/0x21d0
[  267.231915][ T7786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.231942][ T7786]  ? sb_set_blocksize+0x155/0x240
[  267.231965][ T7786]  ? setup_bdev_super+0x4c1/0x5b0
[  267.231987][ T7786]  get_tree_bdev_flags+0x431/0x4f0
[  267.232007][ T7786]  ? __pfx_gfs2_fill_super+0x10/0x10
[  267.232028][ T7786]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  267.232046][ T7786]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  267.232073][ T7786]  gfs2_get_tree+0x51/0x1e0
[  267.232098][ T7786]  vfs_get_tree+0x92/0x2a0
[  267.232119][ T7786]  do_new_mount+0x341/0xd30
[  267.232140][ T7786]  ? apparmor_capable+0x126/0x170
[  267.232167][ T7786]  ? __pfx_do_new_mount+0x10/0x10
[  267.232190][ T7786]  ? ns_capable+0x89/0xe0
[  267.232225][ T7786]  ? user_path_at+0xd4/0x160
[  267.232252][ T7786]  __se_sys_mount+0x31d/0x420
[  267.232281][ T7786]  ? __pfx___se_sys_mount+0x10/0x10
[  267.232310][ T7786]  ? __x64_sys_mount+0x20/0xc0
[  267.232337][ T7786]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.232356][ T7786]  do_syscall_64+0x15f/0xf80
[  267.232379][ T7786]  ? trace_irq_disable+0x3b/0x140
[  267.232401][ T7786]  ? clear_bhb_loop+0x40/0x90
[  267.232422][ T7786]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  267.232441][ T7786] RIP: 0033:0x7f6fccf9b5ca
[  267.232458][ T7786] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  267.232476][ T7786] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.232496][ T7786] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  267.232509][ T7786] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  267.232522][ T7786] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  267.232535][ T7786] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  267.232547][ T7786] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  267.232576][ T7786]  </TASK>
[  267.232619][ T7786] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.247049][ T7784] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.298217][ T7786] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.358292][ T7787] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.477406][ T7791] loop5: detected capacity change from 0 to 32768
[  267.879549][ T7789] loop0: detected capacity change from 0 to 32768
[  268.015943][ T7791] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.062455][ T7791] CPU: 1 UID: 0 PID: 7791 Comm: syz.5.240 Not tainted syzkaller #0 PREEMPT(full) 
[  268.062482][ T7791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  268.062494][ T7791] Call Trace:
[  268.062502][ T7791]  <TASK>
[  268.062511][ T7791]  dump_stack_lvl+0xe8/0x150
[  268.062544][ T7791]  sysfs_create_dir_ns+0x271/0x2a0
[  268.062574][ T7791]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.062600][ T7791]  ? do_raw_spin_unlock+0xf5/0x210
[  268.062628][ T7791]  kobject_add_internal+0x62b/0xd00
[  268.062664][ T7791]  kobject_init_and_add+0x12b/0x1a0
[  268.062694][ T7791]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.062720][ T7791]  ? __raw_spin_lock_init+0x45/0x100
[  268.062743][ T7791]  ? __init_swait_queue_head+0xa9/0x150
[  268.062768][ T7791]  gfs2_sys_fs_add+0x257/0x480
[  268.062796][ T7791]  ? is_dynamic_key+0x1ac/0x1c0
[  268.062823][ T7791]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.062859][ T7791]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.062895][ T7791]  gfs2_fill_super+0x13a7/0x21d0
[  268.062934][ T7791]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.062962][ T7791]  ? sb_set_blocksize+0x155/0x240
[  268.062987][ T7791]  ? setup_bdev_super+0x4c1/0x5b0
[  268.063009][ T7791]  get_tree_bdev_flags+0x431/0x4f0
[  268.063030][ T7791]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.063052][ T7791]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.063070][ T7791]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  268.063098][ T7791]  gfs2_get_tree+0x51/0x1e0
[  268.063125][ T7791]  vfs_get_tree+0x92/0x2a0
[  268.063146][ T7791]  do_new_mount+0x341/0xd30
[  268.063164][ T7791]  ? apparmor_capable+0x126/0x170
[  268.063186][ T7791]  ? __pfx_do_new_mount+0x10/0x10
[  268.063208][ T7791]  ? ns_capable+0x89/0xe0
[  268.063245][ T7791]  ? user_path_at+0xd4/0x160
[  268.063275][ T7791]  __se_sys_mount+0x31d/0x420
[  268.063306][ T7791]  ? __pfx___se_sys_mount+0x10/0x10
[  268.063336][ T7791]  ? __x64_sys_mount+0x20/0xc0
[  268.063360][ T7791]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.063382][ T7791]  do_syscall_64+0x15f/0xf80
[  268.063434][ T7791]  ? trace_irq_disable+0x3b/0x140
[  268.063457][ T7791]  ? clear_bhb_loop+0x40/0x90
[  268.063480][ T7791]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.063500][ T7791] RIP: 0033:0x7fd84279b5ca
[  268.063519][ T7791] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  268.063536][ T7791] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.063557][ T7791] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  268.063572][ T7791] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  268.063586][ T7791] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  268.063599][ T7791] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  268.063612][ T7791] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  268.063646][ T7791]  </TASK>
2026/03/28 19:51:23 executed programs: 234
[  268.063701][ T7791] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.188454][ T7789] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.386478][ T7791] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.435628][ T7789] CPU: 0 UID: 0 PID: 7789 Comm: syz.0.239 Not tainted syzkaller #0 PREEMPT(full) 
[  268.435656][ T7789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  268.435666][ T7789] Call Trace:
[  268.435674][ T7789]  <TASK>
[  268.435682][ T7789]  dump_stack_lvl+0xe8/0x150
[  268.435715][ T7789]  sysfs_create_dir_ns+0x271/0x2a0
[  268.435739][ T7789]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  268.435760][ T7789]  ? do_raw_spin_unlock+0xf5/0x210
[  268.435782][ T7789]  kobject_add_internal+0x62b/0xd00
[  268.435812][ T7789]  kobject_init_and_add+0x12b/0x1a0
[  268.435838][ T7789]  ? __pfx_kobject_init_and_add+0x10/0x10
[  268.435863][ T7789]  ? __raw_spin_lock_init+0x45/0x100
[  268.435882][ T7789]  ? __init_swait_queue_head+0xa9/0x150
[  268.435904][ T7789]  gfs2_sys_fs_add+0x257/0x480
[  268.435925][ T7789]  ? is_dynamic_key+0x1ac/0x1c0
[  268.435945][ T7789]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  268.435973][ T7789]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  268.436001][ T7789]  gfs2_fill_super+0x13a7/0x21d0
[  268.436031][ T7789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.436051][ T7789]  ? sb_set_blocksize+0x155/0x240
[  268.436071][ T7789]  ? setup_bdev_super+0x4c1/0x5b0
[  268.436089][ T7789]  get_tree_bdev_flags+0x431/0x4f0
[  268.436105][ T7789]  ? __pfx_gfs2_fill_super+0x10/0x10
[  268.436123][ T7789]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  268.436136][ T7789]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  268.436159][ T7789]  gfs2_get_tree+0x51/0x1e0
[  268.436179][ T7789]  vfs_get_tree+0x92/0x2a0
[  268.436196][ T7789]  do_new_mount+0x341/0xd30
[  268.436214][ T7789]  ? apparmor_capable+0x126/0x170
[  268.436237][ T7789]  ? __pfx_do_new_mount+0x10/0x10
[  268.436257][ T7789]  ? ns_capable+0x89/0xe0
[  268.436285][ T7789]  ? user_path_at+0xd4/0x160
[  268.436308][ T7789]  __se_sys_mount+0x31d/0x420
[  268.436332][ T7789]  ? __pfx___se_sys_mount+0x10/0x10
[  268.436355][ T7789]  ? __x64_sys_mount+0x20/0xc0
[  268.436373][ T7789]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.436389][ T7789]  do_syscall_64+0x15f/0xf80
[  268.436408][ T7789]  ? trace_irq_disable+0x3b/0x140
[  268.436425][ T7789]  ? clear_bhb_loop+0x40/0x90
[  268.436443][ T7789]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  268.436490][ T7789] RIP: 0033:0x7f73fed9b5ca
[  268.436506][ T7789] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  268.436519][ T7789] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.436537][ T7789] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  268.436549][ T7789] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  268.436559][ T7789] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  268.436570][ T7789] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  268.436580][ T7789] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  268.436604][ T7789]  </TASK>
[  268.436646][ T7789] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.753982][ T7789] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.712343][ T7804] loop1: detected capacity change from 0 to 32768
[  269.730707][ T7804] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.762324][ T7804] CPU: 1 UID: 0 PID: 7804 Comm: syz.1.241 Not tainted syzkaller #0 PREEMPT(full) 
[  269.762350][ T7804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  269.762362][ T7804] Call Trace:
[  269.762370][ T7804]  <TASK>
[  269.762379][ T7804]  dump_stack_lvl+0xe8/0x150
[  269.762412][ T7804]  sysfs_create_dir_ns+0x271/0x2a0
[  269.762440][ T7804]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  269.762467][ T7804]  ? do_raw_spin_unlock+0xf5/0x210
[  269.762496][ T7804]  kobject_add_internal+0x62b/0xd00
[  269.762534][ T7804]  kobject_init_and_add+0x12b/0x1a0
[  269.762566][ T7804]  ? __pfx_kobject_init_and_add+0x10/0x10
[  269.762593][ T7804]  ? __raw_spin_lock_init+0x45/0x100
[  269.762616][ T7804]  ? __init_swait_queue_head+0xa9/0x150
[  269.762641][ T7804]  gfs2_sys_fs_add+0x257/0x480
[  269.762665][ T7804]  ? is_dynamic_key+0x1ac/0x1c0
[  269.762690][ T7804]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  269.762722][ T7804]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  269.762756][ T7804]  gfs2_fill_super+0x13a7/0x21d0
[  269.762792][ T7804]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.762818][ T7804]  ? sb_set_blocksize+0x155/0x240
[  269.762842][ T7804]  ? setup_bdev_super+0x4c1/0x5b0
[  269.762865][ T7804]  get_tree_bdev_flags+0x431/0x4f0
[  269.762885][ T7804]  ? __pfx_gfs2_fill_super+0x10/0x10
[  269.762907][ T7804]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  269.762923][ T7804]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  269.762953][ T7804]  gfs2_get_tree+0x51/0x1e0
[  269.762978][ T7804]  vfs_get_tree+0x92/0x2a0
[  269.762999][ T7804]  do_new_mount+0x341/0xd30
[  269.763021][ T7804]  ? apparmor_capable+0x126/0x170
[  269.763058][ T7804]  ? __pfx_do_new_mount+0x10/0x10
[  269.763081][ T7804]  ? ns_capable+0x89/0xe0
[  269.763118][ T7804]  ? user_path_at+0xd4/0x160
[  269.763147][ T7804]  __se_sys_mount+0x31d/0x420
[  269.763175][ T7804]  ? __pfx___se_sys_mount+0x10/0x10
[  269.763204][ T7804]  ? __x64_sys_mount+0x20/0xc0
[  269.763226][ T7804]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.763246][ T7804]  do_syscall_64+0x15f/0xf80
[  269.763268][ T7804]  ? trace_irq_disable+0x3b/0x140
[  269.763290][ T7804]  ? clear_bhb_loop+0x40/0x90
[  269.763313][ T7804]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  269.763335][ T7804] RIP: 0033:0x7f6fccf9b5ca
[  269.763354][ T7804] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  269.763371][ T7804] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.763391][ T7804] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  269.763405][ T7804] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  269.763418][ T7804] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  269.763431][ T7804] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  269.763443][ T7804] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  269.763474][ T7804]  </TASK>
[  269.763528][ T7804] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.859858][ T7809] loop2: detected capacity change from 0 to 32768
[  269.860784][ T7804] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.953252][ T7807] loop4: detected capacity change from 0 to 32768
[  270.022712][ T7811] loop5: detected capacity change from 0 to 32768
[  270.118223][ T7809] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.167794][ T7809] CPU: 0 UID: 0 PID: 7809 Comm: syz.2.244 Not tainted syzkaller #0 PREEMPT(full) 
[  270.167821][ T7809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.167831][ T7809] Call Trace:
[  270.167839][ T7809]  <TASK>
[  270.167849][ T7809]  dump_stack_lvl+0xe8/0x150
[  270.167881][ T7809]  sysfs_create_dir_ns+0x271/0x2a0
[  270.167910][ T7809]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.167935][ T7809]  ? do_raw_spin_unlock+0xf5/0x210
[  270.167964][ T7809]  kobject_add_internal+0x62b/0xd00
[  270.168000][ T7809]  kobject_init_and_add+0x12b/0x1a0
[  270.168033][ T7809]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.168061][ T7809]  ? __raw_spin_lock_init+0x45/0x100
[  270.168084][ T7809]  ? __init_swait_queue_head+0xa9/0x150
[  270.168111][ T7809]  gfs2_sys_fs_add+0x257/0x480
[  270.168136][ T7809]  ? is_dynamic_key+0x1ac/0x1c0
[  270.168163][ T7809]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.168206][ T7809]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.168242][ T7809]  gfs2_fill_super+0x13a7/0x21d0
[  270.168281][ T7809]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.168308][ T7809]  ? sb_set_blocksize+0x155/0x240
[  270.168333][ T7809]  ? setup_bdev_super+0x4c1/0x5b0
[  270.168356][ T7809]  get_tree_bdev_flags+0x431/0x4f0
[  270.168377][ T7809]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.168399][ T7809]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.168417][ T7809]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.168447][ T7809]  gfs2_get_tree+0x51/0x1e0
[  270.168499][ T7809]  vfs_get_tree+0x92/0x2a0
[  270.168521][ T7809]  do_new_mount+0x341/0xd30
[  270.168543][ T7809]  ? apparmor_capable+0x126/0x170
[  270.168595][ T7809]  ? __pfx_do_new_mount+0x10/0x10
[  270.168625][ T7809]  ? ns_capable+0x89/0xe0
[  270.168662][ T7809]  ? user_path_at+0xd4/0x160
[  270.168691][ T7809]  __se_sys_mount+0x31d/0x420
[  270.168722][ T7809]  ? __pfx___se_sys_mount+0x10/0x10
[  270.168761][ T7809]  ? __x64_sys_mount+0x20/0xc0
[  270.168786][ T7809]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.168806][ T7809]  do_syscall_64+0x15f/0xf80
[  270.168827][ T7809]  ? trace_irq_disable+0x3b/0x140
[  270.168849][ T7809]  ? clear_bhb_loop+0x40/0x90
[  270.168872][ T7809]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.168890][ T7809] RIP: 0033:0x7f48f8d9b5ca
[  270.168908][ T7809] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  270.168924][ T7809] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.168946][ T7809] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  270.168960][ T7809] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  270.168975][ T7809] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  270.168988][ T7809] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  270.169000][ T7809] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  270.169028][ T7809]  </TASK>
[  270.173958][ T7807] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.245236][ T7809] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.360950][ T7807] CPU: 1 UID: 0 PID: 7807 Comm: syz.4.242 Not tainted syzkaller #0 PREEMPT(full) 
[  270.360973][ T7807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.360981][ T7807] Call Trace:
[  270.360988][ T7807]  <TASK>
[  270.360995][ T7807]  dump_stack_lvl+0xe8/0x150
[  270.361027][ T7807]  sysfs_create_dir_ns+0x271/0x2a0
[  270.361056][ T7807]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.361082][ T7807]  ? do_raw_spin_unlock+0xf5/0x210
[  270.361109][ T7807]  kobject_add_internal+0x62b/0xd00
[  270.361144][ T7807]  kobject_init_and_add+0x12b/0x1a0
[  270.361175][ T7807]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.361202][ T7807]  ? __raw_spin_lock_init+0x45/0x100
[  270.361226][ T7807]  ? __init_swait_queue_head+0xa9/0x150
[  270.361250][ T7807]  gfs2_sys_fs_add+0x257/0x480
[  270.361276][ T7807]  ? is_dynamic_key+0x1ac/0x1c0
[  270.361302][ T7807]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.361336][ T7807]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.361370][ T7807]  gfs2_fill_super+0x13a7/0x21d0
[  270.361407][ T7807]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.361434][ T7807]  ? sb_set_blocksize+0x155/0x240
[  270.361457][ T7807]  ? setup_bdev_super+0x4c1/0x5b0
[  270.361479][ T7807]  get_tree_bdev_flags+0x431/0x4f0
[  270.361499][ T7807]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.361521][ T7807]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.361537][ T7807]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.361566][ T7807]  gfs2_get_tree+0x51/0x1e0
[  270.361590][ T7807]  vfs_get_tree+0x92/0x2a0
[  270.361612][ T7807]  do_new_mount+0x341/0xd30
[  270.361634][ T7807]  ? apparmor_capable+0x126/0x170
[  270.361661][ T7807]  ? __pfx_do_new_mount+0x10/0x10
[  270.361683][ T7807]  ? ns_capable+0x89/0xe0
[  270.361719][ T7807]  ? user_path_at+0xd4/0x160
[  270.361746][ T7807]  __se_sys_mount+0x31d/0x420
[  270.361775][ T7807]  ? __pfx___se_sys_mount+0x10/0x10
[  270.361804][ T7807]  ? __x64_sys_mount+0x20/0xc0
[  270.361827][ T7807]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.361847][ T7807]  do_syscall_64+0x15f/0xf80
[  270.361869][ T7807]  ? trace_irq_disable+0x3b/0x140
[  270.361891][ T7807]  ? clear_bhb_loop+0x40/0x90
[  270.361912][ T7807]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.361937][ T7807] RIP: 0033:0x7f91c659b5ca
[  270.361955][ T7807] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  270.361972][ T7807] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.361991][ T7807] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  270.362005][ T7807] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  270.362019][ T7807] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  270.362032][ T7807] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  270.362044][ T7807] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  270.362073][ T7807]  </TASK>
[  270.362099][ T7807] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.463597][ T7813] loop0: detected capacity change from 0 to 32768
[  270.466750][ T7809] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.502578][ T7807] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.539373][ T7811] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.550597][ T7813] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.702123][ T7811] CPU: 1 UID: 0 PID: 7811 Comm: syz.5.243 Not tainted syzkaller #0 PREEMPT(full) 
[  270.702149][ T7811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.702161][ T7811] Call Trace:
[  270.702169][ T7811]  <TASK>
[  270.702178][ T7811]  dump_stack_lvl+0xe8/0x150
[  270.702211][ T7811]  sysfs_create_dir_ns+0x271/0x2a0
[  270.702240][ T7811]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.702266][ T7811]  ? do_raw_spin_unlock+0xf5/0x210
[  270.702293][ T7811]  kobject_add_internal+0x62b/0xd00
[  270.702328][ T7811]  kobject_init_and_add+0x12b/0x1a0
[  270.702359][ T7811]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.702386][ T7811]  ? __raw_spin_lock_init+0x45/0x100
[  270.702409][ T7811]  ? __init_swait_queue_head+0xa9/0x150
[  270.702434][ T7811]  gfs2_sys_fs_add+0x257/0x480
[  270.702460][ T7811]  ? is_dynamic_key+0x1ac/0x1c0
[  270.702486][ T7811]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.702520][ T7811]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.702553][ T7811]  gfs2_fill_super+0x13a7/0x21d0
[  270.702589][ T7811]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.702615][ T7811]  ? sb_set_blocksize+0x155/0x240
[  270.702639][ T7811]  ? setup_bdev_super+0x4c1/0x5b0
[  270.702660][ T7811]  get_tree_bdev_flags+0x431/0x4f0
[  270.702680][ T7811]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.702701][ T7811]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.702719][ T7811]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.702746][ T7811]  gfs2_get_tree+0x51/0x1e0
[  270.702771][ T7811]  vfs_get_tree+0x92/0x2a0
[  270.702792][ T7811]  do_new_mount+0x341/0xd30
[  270.702813][ T7811]  ? apparmor_capable+0x126/0x170
[  270.702841][ T7811]  ? __pfx_do_new_mount+0x10/0x10
[  270.702863][ T7811]  ? ns_capable+0x89/0xe0
[  270.702899][ T7811]  ? user_path_at+0xd4/0x160
[  270.702927][ T7811]  __se_sys_mount+0x31d/0x420
[  270.702962][ T7811]  ? __pfx___se_sys_mount+0x10/0x10
[  270.702992][ T7811]  ? __x64_sys_mount+0x20/0xc0
[  270.703014][ T7811]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.703034][ T7811]  do_syscall_64+0x15f/0xf80
[  270.703056][ T7811]  ? trace_irq_disable+0x3b/0x140
[  270.703078][ T7811]  ? clear_bhb_loop+0x40/0x90
[  270.703101][ T7811]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.703119][ T7811] RIP: 0033:0x7fd84279b5ca
[  270.703137][ T7811] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  270.703153][ T7811] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.703173][ T7811] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  270.703187][ T7811] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  270.703201][ T7811] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  270.703213][ T7811] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  270.703225][ T7811] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  270.703255][ T7811]  </TASK>
[  270.703280][ T7811] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.703748][ T7813] CPU: 0 UID: 0 PID: 7813 Comm: syz.0.245 Not tainted syzkaller #0 PREEMPT(full) 
[  270.703769][ T7813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  270.703780][ T7813] Call Trace:
[  270.703796][ T7813]  <TASK>
[  270.703804][ T7813]  dump_stack_lvl+0xe8/0x150
[  270.703834][ T7813]  sysfs_create_dir_ns+0x271/0x2a0
[  270.703860][ T7813]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  270.703886][ T7813]  ? do_raw_spin_unlock+0xf5/0x210
[  270.703913][ T7813]  kobject_add_internal+0x62b/0xd00
[  270.703947][ T7813]  kobject_init_and_add+0x12b/0x1a0
[  270.703977][ T7813]  ? __pfx_kobject_init_and_add+0x10/0x10
[  270.704004][ T7813]  ? __raw_spin_lock_init+0x45/0x100
[  270.704028][ T7813]  ? __init_swait_queue_head+0xa9/0x150
[  270.704054][ T7813]  gfs2_sys_fs_add+0x257/0x480
[  270.704079][ T7813]  ? is_dynamic_key+0x1ac/0x1c0
[  270.704104][ T7813]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  270.704139][ T7813]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  270.704172][ T7813]  gfs2_fill_super+0x13a7/0x21d0
[  270.704215][ T7813]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.704241][ T7813]  ? sb_set_blocksize+0x155/0x240
[  270.704264][ T7813]  ? setup_bdev_super+0x4c1/0x5b0
[  270.704286][ T7813]  get_tree_bdev_flags+0x431/0x4f0
[  270.704305][ T7813]  ? __pfx_gfs2_fill_super+0x10/0x10
[  270.704327][ T7813]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  270.704343][ T7813]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  270.704371][ T7813]  gfs2_get_tree+0x51/0x1e0
[  270.704397][ T7813]  vfs_get_tree+0x92/0x2a0
[  270.704417][ T7813]  do_new_mount+0x341/0xd30
[  270.704438][ T7813]  ? apparmor_capable+0x126/0x170
[  270.704464][ T7813]  ? __pfx_do_new_mount+0x10/0x10
[  270.704487][ T7813]  ? ns_capable+0x89/0xe0
[  270.704522][ T7813]  ? user_path_at+0xd4/0x160
[  270.704550][ T7813]  __se_sys_mount+0x31d/0x420
[  270.704578][ T7813]  ? __pfx___se_sys_mount+0x10/0x10
[  270.704608][ T7813]  ? __x64_sys_mount+0x20/0xc0
[  270.704631][ T7813]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.704650][ T7813]  do_syscall_64+0x15f/0xf80
[  270.704672][ T7813]  ? trace_irq_disable+0x3b/0x140
[  270.704693][ T7813]  ? clear_bhb_loop+0x40/0x90
[  270.704716][ T7813]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  270.704733][ T7813] RIP: 0033:0x7f73fed9b5ca
[  270.704751][ T7813] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  270.704766][ T7813] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.704785][ T7813] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  270.704799][ T7813] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  270.704813][ T7813] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  270.704825][ T7813] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  270.704838][ T7813] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  270.704867][ T7813]  </TASK>
[  270.704906][ T7813] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.743758][ T7811] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  271.008252][ T7813] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.241864][ T7828] loop2: detected capacity change from 0 to 32768
[  272.274543][ T7828] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.321543][ T7828] CPU: 0 UID: 0 PID: 7828 Comm: syz.2.246 Not tainted syzkaller #0 PREEMPT(full) 
[  272.321571][ T7828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  272.321584][ T7828] Call Trace:
[  272.321591][ T7828]  <TASK>
[  272.321600][ T7828]  dump_stack_lvl+0xe8/0x150
[  272.321633][ T7828]  sysfs_create_dir_ns+0x271/0x2a0
[  272.321663][ T7828]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.321692][ T7828]  ? do_raw_spin_unlock+0xf5/0x210
[  272.321720][ T7828]  kobject_add_internal+0x62b/0xd00
[  272.321755][ T7828]  kobject_init_and_add+0x12b/0x1a0
[  272.321786][ T7828]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.321814][ T7828]  ? __raw_spin_lock_init+0x45/0x100
[  272.321838][ T7828]  ? __init_swait_queue_head+0xa9/0x150
[  272.321862][ T7828]  gfs2_sys_fs_add+0x257/0x480
[  272.321888][ T7828]  ? is_dynamic_key+0x1ac/0x1c0
[  272.321914][ T7828]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.321949][ T7828]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.321984][ T7828]  gfs2_fill_super+0x13a7/0x21d0
[  272.322029][ T7828]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.322056][ T7828]  ? sb_set_blocksize+0x155/0x240
[  272.322081][ T7828]  ? setup_bdev_super+0x4c1/0x5b0
[  272.322103][ T7828]  get_tree_bdev_flags+0x431/0x4f0
[  272.322122][ T7828]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.322144][ T7828]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.322161][ T7828]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  272.322191][ T7828]  gfs2_get_tree+0x51/0x1e0
[  272.322218][ T7828]  vfs_get_tree+0x92/0x2a0
[  272.322241][ T7828]  do_new_mount+0x341/0xd30
[  272.322263][ T7828]  ? apparmor_capable+0x126/0x170
[  272.322290][ T7828]  ? __pfx_do_new_mount+0x10/0x10
[  272.322312][ T7828]  ? ns_capable+0x89/0xe0
[  272.322350][ T7828]  ? user_path_at+0xd4/0x160
[  272.322379][ T7828]  __se_sys_mount+0x31d/0x420
[  272.322408][ T7828]  ? __pfx___se_sys_mount+0x10/0x10
[  272.322438][ T7828]  ? __x64_sys_mount+0x20/0xc0
[  272.322460][ T7828]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.322479][ T7828]  do_syscall_64+0x15f/0xf80
[  272.322502][ T7828]  ? trace_irq_disable+0x3b/0x140
[  272.322523][ T7828]  ? clear_bhb_loop+0x40/0x90
[  272.322546][ T7828]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.322564][ T7828] RIP: 0033:0x7f48f8d9b5ca
[  272.322583][ T7828] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  272.322601][ T7828] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.322621][ T7828] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  272.322635][ T7828] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  272.322648][ T7828] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  272.322660][ T7828] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  272.322673][ T7828] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  272.322704][ T7828]  </TASK>
[  272.322731][ T7828] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.713561][ T7829] loop4: detected capacity change from 0 to 32768
[  272.714616][ T7828] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.763483][ T7829] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.797028][ T7829] CPU: 0 UID: 0 PID: 7829 Comm: syz.4.248 Not tainted syzkaller #0 PREEMPT(full) 
[  272.797051][ T7829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  272.797061][ T7829] Call Trace:
[  272.797067][ T7829]  <TASK>
[  272.797075][ T7829]  dump_stack_lvl+0xe8/0x150
[  272.797103][ T7829]  sysfs_create_dir_ns+0x271/0x2a0
[  272.797127][ T7829]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  272.797148][ T7829]  ? do_raw_spin_unlock+0xf5/0x210
[  272.797170][ T7829]  kobject_add_internal+0x62b/0xd00
[  272.797199][ T7829]  kobject_init_and_add+0x12b/0x1a0
[  272.797225][ T7829]  ? __pfx_kobject_init_and_add+0x10/0x10
[  272.797248][ T7829]  ? __raw_spin_lock_init+0x45/0x100
[  272.797267][ T7829]  ? __init_swait_queue_head+0xa9/0x150
[  272.797288][ T7829]  gfs2_sys_fs_add+0x257/0x480
[  272.797310][ T7829]  ? is_dynamic_key+0x1ac/0x1c0
[  272.797331][ T7829]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  272.797360][ T7829]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  272.797388][ T7829]  gfs2_fill_super+0x13a7/0x21d0
[  272.797420][ T7829]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.797442][ T7829]  ? sb_set_blocksize+0x155/0x240
[  272.797462][ T7829]  ? setup_bdev_super+0x4c1/0x5b0
[  272.797480][ T7829]  get_tree_bdev_flags+0x431/0x4f0
[  272.797497][ T7829]  ? __pfx_gfs2_fill_super+0x10/0x10
[  272.797515][ T7829]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  272.797528][ T7829]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  272.797552][ T7829]  gfs2_get_tree+0x51/0x1e0
[  272.797574][ T7829]  vfs_get_tree+0x92/0x2a0
[  272.797591][ T7829]  do_new_mount+0x341/0xd30
[  272.797609][ T7829]  ? apparmor_capable+0x126/0x170
[  272.797632][ T7829]  ? __pfx_do_new_mount+0x10/0x10
[  272.797651][ T7829]  ? ns_capable+0x89/0xe0
[  272.797681][ T7829]  ? user_path_at+0xd4/0x160
[  272.797705][ T7829]  __se_sys_mount+0x31d/0x420
[  272.797729][ T7829]  ? __pfx___se_sys_mount+0x10/0x10
[  272.797755][ T7829]  ? __x64_sys_mount+0x20/0xc0
[  272.797782][ T7829]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.797799][ T7829]  do_syscall_64+0x15f/0xf80
[  272.797819][ T7829]  ? trace_irq_disable+0x3b/0x140
[  272.797838][ T7829]  ? clear_bhb_loop+0x40/0x90
[  272.797857][ T7829]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  272.797872][ T7829] RIP: 0033:0x7f91c659b5ca
[  272.797888][ T7829] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  272.797902][ T7829] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.797919][ T7829] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  272.797931][ T7829] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  272.797942][ T7829] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  272.797953][ T7829] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  272.797963][ T7829] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  272.797989][ T7829]  </TASK>
[  272.798015][ T7829] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.054772][ T7825] loop1: detected capacity change from 0 to 32768
[  273.132142][ T7829] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.151567][ T5909] Bluetooth: hci5: command 0x0406 tx timeout
[  273.165458][ T7825] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.173774][ T7825] CPU: 0 UID: 0 PID: 7825 Comm: syz.1.247 Not tainted syzkaller #0 PREEMPT(full) 
[  273.173801][ T7825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  273.173813][ T7825] Call Trace:
[  273.173821][ T7825]  <TASK>
[  273.173829][ T7825]  dump_stack_lvl+0xe8/0x150
[  273.173861][ T7825]  sysfs_create_dir_ns+0x271/0x2a0
[  273.173886][ T7825]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  273.173910][ T7825]  ? do_raw_spin_unlock+0xf5/0x210
[  273.173933][ T7825]  kobject_add_internal+0x62b/0xd00
[  273.173966][ T7825]  kobject_init_and_add+0x12b/0x1a0
[  273.173995][ T7825]  ? __pfx_kobject_init_and_add+0x10/0x10
[  273.174018][ T7825]  ? __raw_spin_lock_init+0x45/0x100
[  273.174041][ T7825]  ? __init_swait_queue_head+0xa9/0x150
[  273.174066][ T7825]  gfs2_sys_fs_add+0x257/0x480
[  273.174089][ T7825]  ? is_dynamic_key+0x1ac/0x1c0
[  273.174113][ T7825]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  273.174145][ T7825]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  273.174175][ T7825]  gfs2_fill_super+0x13a7/0x21d0
[  273.174212][ T7825]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.174235][ T7825]  ? sb_set_blocksize+0x155/0x240
[  273.174257][ T7825]  ? setup_bdev_super+0x4c1/0x5b0
[  273.174279][ T7825]  get_tree_bdev_flags+0x431/0x4f0
[  273.174296][ T7825]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.174316][ T7825]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  273.174332][ T7825]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  273.174365][ T7825]  gfs2_get_tree+0x51/0x1e0
[  273.174390][ T7825]  vfs_get_tree+0x92/0x2a0
[  273.174410][ T7825]  do_new_mount+0x341/0xd30
[  273.174430][ T7825]  ? apparmor_capable+0x126/0x170
[  273.174458][ T7825]  ? __pfx_do_new_mount+0x10/0x10
[  273.174481][ T7825]  ? ns_capable+0x89/0xe0
[  273.174513][ T7825]  ? user_path_at+0xd4/0x160
[  273.174542][ T7825]  __se_sys_mount+0x31d/0x420
[  273.174571][ T7825]  ? __pfx___se_sys_mount+0x10/0x10
[  273.174601][ T7825]  ? __x64_sys_mount+0x20/0xc0
[  273.174623][ T7825]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.174644][ T7825]  do_syscall_64+0x15f/0xf80
[  273.174669][ T7825]  ? trace_irq_disable+0x3b/0x140
[  273.174693][ T7825]  ? clear_bhb_loop+0x40/0x90
[  273.174716][ T7825]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.174745][ T7825] RIP: 0033:0x7f6fccf9b5ca
[  273.174764][ T7825] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  273.174781][ T7825] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.174803][ T7825] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  273.174817][ T7825] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  273.174832][ T7825] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  273.174845][ T7825] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  273.174859][ T7825] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  273.174889][ T7825]  </TASK>
[  273.174925][ T7825] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.242947][ T7831] loop5: detected capacity change from 0 to 32768
[  273.296833][ T7825] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.530724][ T7831] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.568553][ T7831] CPU: 0 UID: 0 PID: 7831 Comm: syz.5.249 Not tainted syzkaller #0 PREEMPT(full) 
[  273.568580][ T7831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  273.568591][ T7831] Call Trace:
[  273.568599][ T7831]  <TASK>
[  273.568607][ T7831]  dump_stack_lvl+0xe8/0x150
[  273.568637][ T7831]  sysfs_create_dir_ns+0x271/0x2a0
[  273.568663][ T7831]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  273.568686][ T7831]  ? do_raw_spin_unlock+0xf5/0x210
[  273.568711][ T7831]  kobject_add_internal+0x62b/0xd00
[  273.568743][ T7831]  kobject_init_and_add+0x12b/0x1a0
[  273.568771][ T7831]  ? __pfx_kobject_init_and_add+0x10/0x10
[  273.568797][ T7831]  ? __raw_spin_lock_init+0x45/0x100
[  273.568818][ T7831]  ? __init_swait_queue_head+0xa9/0x150
[  273.568850][ T7831]  gfs2_sys_fs_add+0x257/0x480
[  273.568875][ T7831]  ? is_dynamic_key+0x1ac/0x1c0
[  273.568899][ T7831]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  273.568931][ T7831]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  273.568964][ T7831]  gfs2_fill_super+0x13a7/0x21d0
[  273.568999][ T7831]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.569023][ T7831]  ? sb_set_blocksize+0x155/0x240
[  273.569045][ T7831]  ? setup_bdev_super+0x4c1/0x5b0
[  273.569066][ T7831]  get_tree_bdev_flags+0x431/0x4f0
[  273.569084][ T7831]  ? __pfx_gfs2_fill_super+0x10/0x10
[  273.569104][ T7831]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  273.569119][ T7831]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  273.569145][ T7831]  gfs2_get_tree+0x51/0x1e0
[  273.569168][ T7831]  vfs_get_tree+0x92/0x2a0
[  273.569188][ T7831]  do_new_mount+0x341/0xd30
[  273.569208][ T7831]  ? apparmor_capable+0x126/0x170
[  273.569232][ T7831]  ? __pfx_do_new_mount+0x10/0x10
[  273.569252][ T7831]  ? ns_capable+0x89/0xe0
[  273.569284][ T7831]  ? user_path_at+0xd4/0x160
[  273.569310][ T7831]  __se_sys_mount+0x31d/0x420
[  273.569336][ T7831]  ? __pfx___se_sys_mount+0x10/0x10
[  273.569363][ T7831]  ? __x64_sys_mount+0x20/0xc0
[  273.569384][ T7831]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.569405][ T7831]  do_syscall_64+0x15f/0xf80
[  273.569428][ T7831]  ? trace_irq_disable+0x3b/0x140
[  273.569451][ T7831]  ? clear_bhb_loop+0x40/0x90
[  273.569475][ T7831]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  273.569495][ T7831] RIP: 0033:0x7fd84279b5ca
[  273.569513][ T7831] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  273.569530][ T7831] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.569550][ T7831] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  273.569565][ T7831] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  273.569579][ T7831] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  273.569591][ T7831] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  273.569603][ T7831] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  273.569633][ T7831]  </TASK>
[  273.569660][ T7831] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/03/28 19:51:29 executed programs: 244
[  273.878259][ T7831] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.461864][ T7835] loop0: detected capacity change from 0 to 32768
[  274.500777][ T7835] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.560121][ T7835] CPU: 1 UID: 0 PID: 7835 Comm: syz.0.250 Not tainted syzkaller #0 PREEMPT(full) 
[  274.560147][ T7835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  274.560160][ T7835] Call Trace:
[  274.560168][ T7835]  <TASK>
[  274.560177][ T7835]  dump_stack_lvl+0xe8/0x150
[  274.560210][ T7835]  sysfs_create_dir_ns+0x271/0x2a0
[  274.560238][ T7835]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  274.560266][ T7835]  ? do_raw_spin_unlock+0xf5/0x210
[  274.560292][ T7835]  kobject_add_internal+0x62b/0xd00
[  274.560328][ T7835]  kobject_init_and_add+0x12b/0x1a0
[  274.560360][ T7835]  ? __pfx_kobject_init_and_add+0x10/0x10
[  274.560388][ T7835]  ? __raw_spin_lock_init+0x45/0x100
[  274.560412][ T7835]  ? __init_swait_queue_head+0xa9/0x150
[  274.560438][ T7835]  gfs2_sys_fs_add+0x257/0x480
[  274.560464][ T7835]  ? is_dynamic_key+0x1ac/0x1c0
[  274.560489][ T7835]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  274.560524][ T7835]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  274.560562][ T7835]  gfs2_fill_super+0x13a7/0x21d0
[  274.560601][ T7835]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.560628][ T7835]  ? sb_set_blocksize+0x155/0x240
[  274.560651][ T7835]  ? setup_bdev_super+0x4c1/0x5b0
[  274.560673][ T7835]  get_tree_bdev_flags+0x431/0x4f0
[  274.560694][ T7835]  ? __pfx_gfs2_fill_super+0x10/0x10
[  274.560715][ T7835]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  274.560733][ T7835]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  274.560769][ T7835]  gfs2_get_tree+0x51/0x1e0
[  274.560794][ T7835]  vfs_get_tree+0x92/0x2a0
[  274.560815][ T7835]  do_new_mount+0x341/0xd30
[  274.560837][ T7835]  ? apparmor_capable+0x126/0x170
[  274.560864][ T7835]  ? __pfx_do_new_mount+0x10/0x10
[  274.560888][ T7835]  ? ns_capable+0x89/0xe0
[  274.560924][ T7835]  ? user_path_at+0xd4/0x160
[  274.560952][ T7835]  __se_sys_mount+0x31d/0x420
[  274.560982][ T7835]  ? __pfx___se_sys_mount+0x10/0x10
[  274.561013][ T7835]  ? __x64_sys_mount+0x20/0xc0
[  274.561034][ T7835]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.561054][ T7835]  do_syscall_64+0x15f/0xf80
[  274.561082][ T7835]  ? trace_irq_disable+0x3b/0x140
[  274.561105][ T7835]  ? clear_bhb_loop+0x40/0x90
[  274.561129][ T7835]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  274.561149][ T7835] RIP: 0033:0x7f73fed9b5ca
[  274.561168][ T7835] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  274.561185][ T7835] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.561205][ T7835] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  274.561219][ T7835] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  274.561233][ T7835] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  274.561245][ T7835] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  274.561257][ T7835] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  274.561287][ T7835]  </TASK>
[  274.561398][ T7835] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.941210][ T7835] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.456153][ T7844] loop2: detected capacity change from 0 to 32768
[  275.466380][ T7845] loop4: detected capacity change from 0 to 32768
[  275.488654][ T7844] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.513973][ T7844] CPU: 1 UID: 0 PID: 7844 Comm: syz.2.252 Not tainted syzkaller #0 PREEMPT(full) 
[  275.513998][ T7844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  275.514010][ T7844] Call Trace:
[  275.514018][ T7844]  <TASK>
[  275.514027][ T7844]  dump_stack_lvl+0xe8/0x150
[  275.514059][ T7844]  sysfs_create_dir_ns+0x271/0x2a0
[  275.514088][ T7844]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  275.514112][ T7844]  ? do_raw_spin_unlock+0xf5/0x210
[  275.514137][ T7844]  kobject_add_internal+0x62b/0xd00
[  275.514170][ T7844]  kobject_init_and_add+0x12b/0x1a0
[  275.514199][ T7844]  ? __pfx_kobject_init_and_add+0x10/0x10
[  275.514224][ T7844]  ? __raw_spin_lock_init+0x45/0x100
[  275.514245][ T7844]  ? __init_swait_queue_head+0xa9/0x150
[  275.514268][ T7844]  gfs2_sys_fs_add+0x257/0x480
[  275.514294][ T7844]  ? is_dynamic_key+0x1ac/0x1c0
[  275.514319][ T7844]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  275.514353][ T7844]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  275.514387][ T7844]  gfs2_fill_super+0x13a7/0x21d0
[  275.514426][ T7844]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.514451][ T7844]  ? sb_set_blocksize+0x155/0x240
[  275.514475][ T7844]  ? setup_bdev_super+0x4c1/0x5b0
[  275.514505][ T7844]  get_tree_bdev_flags+0x431/0x4f0
[  275.514524][ T7844]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.514547][ T7844]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  275.514565][ T7844]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  275.514594][ T7844]  gfs2_get_tree+0x51/0x1e0
[  275.514618][ T7844]  vfs_get_tree+0x92/0x2a0
[  275.514639][ T7844]  do_new_mount+0x341/0xd30
[  275.514660][ T7844]  ? apparmor_capable+0x126/0x170
[  275.514687][ T7844]  ? __pfx_do_new_mount+0x10/0x10
[  275.514710][ T7844]  ? ns_capable+0x89/0xe0
[  275.514744][ T7844]  ? user_path_at+0xd4/0x160
[  275.514771][ T7844]  __se_sys_mount+0x31d/0x420
[  275.514800][ T7844]  ? __pfx___se_sys_mount+0x10/0x10
[  275.514831][ T7844]  ? __x64_sys_mount+0x20/0xc0
[  275.514854][ T7844]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.514875][ T7844]  do_syscall_64+0x15f/0xf80
[  275.514898][ T7844]  ? trace_irq_disable+0x3b/0x140
[  275.514920][ T7844]  ? clear_bhb_loop+0x40/0x90
[  275.514943][ T7844]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.514962][ T7844] RIP: 0033:0x7f48f8d9b5ca
[  275.514980][ T7844] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  275.514997][ T7844] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.515020][ T7844] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  275.515034][ T7844] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  275.515046][ T7844] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  275.515059][ T7844] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  275.515071][ T7844] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  275.515101][ T7844]  </TASK>
[  275.515726][ T7844] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.523913][ T7845] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.525815][ T7844] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.610349][ T7847] loop1: detected capacity change from 0 to 32768
[  275.613020][ T7845] CPU: 1 UID: 0 PID: 7845 Comm: syz.4.253 Not tainted syzkaller #0 PREEMPT(full) 
[  275.613043][ T7845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  275.613054][ T7845] Call Trace:
[  275.613063][ T7845]  <TASK>
[  275.613072][ T7845]  dump_stack_lvl+0xe8/0x150
[  275.613104][ T7845]  sysfs_create_dir_ns+0x271/0x2a0
[  275.613132][ T7845]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  275.613158][ T7845]  ? do_raw_spin_unlock+0xf5/0x210
[  275.613185][ T7845]  kobject_add_internal+0x62b/0xd00
[  275.613220][ T7845]  kobject_init_and_add+0x12b/0x1a0
[  275.613251][ T7845]  ? __pfx_kobject_init_and_add+0x10/0x10
[  275.613278][ T7845]  ? __raw_spin_lock_init+0x45/0x100
[  275.613301][ T7845]  ? __init_swait_queue_head+0xa9/0x150
[  275.613326][ T7845]  gfs2_sys_fs_add+0x257/0x480
[  275.613352][ T7845]  ? is_dynamic_key+0x1ac/0x1c0
[  275.613378][ T7845]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  275.613413][ T7845]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  275.613447][ T7845]  gfs2_fill_super+0x13a7/0x21d0
[  275.613491][ T7845]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.613517][ T7845]  ? sb_set_blocksize+0x155/0x240
[  275.613541][ T7845]  ? setup_bdev_super+0x4c1/0x5b0
[  275.613563][ T7845]  get_tree_bdev_flags+0x431/0x4f0
[  275.613583][ T7845]  ? __pfx_gfs2_fill_super+0x10/0x10
[  275.613605][ T7845]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  275.613620][ T7845]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  275.613648][ T7845]  gfs2_get_tree+0x51/0x1e0
[  275.613673][ T7845]  vfs_get_tree+0x92/0x2a0
[  275.613694][ T7845]  do_new_mount+0x341/0xd30
[  275.613716][ T7845]  ? apparmor_capable+0x126/0x170
[  275.613741][ T7845]  ? __pfx_do_new_mount+0x10/0x10
[  275.613764][ T7845]  ? ns_capable+0x89/0xe0
[  275.613800][ T7845]  ? user_path_at+0xd4/0x160
[  275.613828][ T7845]  __se_sys_mount+0x31d/0x420
[  275.613857][ T7845]  ? __pfx___se_sys_mount+0x10/0x10
[  275.613886][ T7845]  ? __x64_sys_mount+0x20/0xc0
[  275.613908][ T7845]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.613929][ T7845]  do_syscall_64+0x15f/0xf80
[  275.613950][ T7845]  ? trace_irq_disable+0x3b/0x140
[  275.613972][ T7845]  ? clear_bhb_loop+0x40/0x90
[  275.613994][ T7845]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  275.614013][ T7845] RIP: 0033:0x7f91c659b5ca
[  275.614031][ T7845] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  275.614047][ T7845] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.614066][ T7845] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  275.614080][ T7845] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  275.614094][ T7845] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  275.614107][ T7845] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  275.614119][ T7845] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  275.614148][ T7845]  </TASK>
[  275.614173][ T7845] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.972998][ T7849] loop5: detected capacity change from 0 to 32768
[  275.998214][ T7845] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.003401][ T7847] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.175577][ T7847] CPU: 0 UID: 0 PID: 7847 Comm: syz.1.251 Not tainted syzkaller #0 PREEMPT(full) 
[  276.175604][ T7847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  276.175616][ T7847] Call Trace:
[  276.175624][ T7847]  <TASK>
[  276.175633][ T7847]  dump_stack_lvl+0xe8/0x150
[  276.175667][ T7847]  sysfs_create_dir_ns+0x271/0x2a0
[  276.175696][ T7847]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  276.175723][ T7847]  ? do_raw_spin_unlock+0xf5/0x210
[  276.175751][ T7847]  kobject_add_internal+0x62b/0xd00
[  276.175786][ T7847]  kobject_init_and_add+0x12b/0x1a0
[  276.175818][ T7847]  ? __pfx_kobject_init_and_add+0x10/0x10
[  276.175846][ T7847]  ? __raw_spin_lock_init+0x45/0x100
[  276.175870][ T7847]  ? __init_swait_queue_head+0xa9/0x150
[  276.175896][ T7847]  gfs2_sys_fs_add+0x257/0x480
[  276.175923][ T7847]  ? is_dynamic_key+0x1ac/0x1c0
[  276.175949][ T7847]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  276.175984][ T7847]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  276.176020][ T7847]  gfs2_fill_super+0x13a7/0x21d0
[  276.176059][ T7847]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.176087][ T7847]  ? sb_set_blocksize+0x155/0x240
[  276.176111][ T7847]  ? setup_bdev_super+0x4c1/0x5b0
[  276.176134][ T7847]  get_tree_bdev_flags+0x431/0x4f0
[  276.176154][ T7847]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.176173][ T7847]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  276.176189][ T7847]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  276.176215][ T7847]  gfs2_get_tree+0x51/0x1e0
[  276.176239][ T7847]  vfs_get_tree+0x92/0x2a0
[  276.176259][ T7847]  do_new_mount+0x341/0xd30
[  276.176280][ T7847]  ? apparmor_capable+0x126/0x170
[  276.176308][ T7847]  ? __pfx_do_new_mount+0x10/0x10
[  276.176328][ T7847]  ? ns_capable+0x89/0xe0
[  276.176363][ T7847]  ? user_path_at+0xd4/0x160
[  276.176390][ T7847]  __se_sys_mount+0x31d/0x420
[  276.176416][ T7847]  ? __pfx___se_sys_mount+0x10/0x10
[  276.176453][ T7847]  ? __x64_sys_mount+0x20/0xc0
[  276.176475][ T7847]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.176496][ T7847]  do_syscall_64+0x15f/0xf80
[  276.176519][ T7847]  ? trace_irq_disable+0x3b/0x140
[  276.176542][ T7847]  ? clear_bhb_loop+0x40/0x90
[  276.176565][ T7847]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.176584][ T7847] RIP: 0033:0x7f6fccf9b5ca
[  276.176603][ T7847] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  276.176617][ T7847] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.176639][ T7847] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  276.176653][ T7847] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  276.176667][ T7847] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  276.176680][ T7847] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  276.176693][ T7847] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  276.176722][ T7847]  </TASK>
[  276.176749][ T7847] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.525465][ T7853] loop0: detected capacity change from 0 to 32768
[  276.542919][ T7849] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.558355][ T7849] CPU: 0 UID: 0 PID: 7849 Comm: syz.5.254 Not tainted syzkaller #0 PREEMPT(full) 
[  276.558382][ T7849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  276.558394][ T7849] Call Trace:
[  276.558402][ T7849]  <TASK>
[  276.558411][ T7849]  dump_stack_lvl+0xe8/0x150
[  276.558442][ T7849]  sysfs_create_dir_ns+0x271/0x2a0
[  276.558465][ T7849]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  276.558487][ T7849]  ? do_raw_spin_unlock+0xf5/0x210
[  276.558510][ T7849]  kobject_add_internal+0x62b/0xd00
[  276.558551][ T7849]  kobject_init_and_add+0x12b/0x1a0
[  276.558584][ T7849]  ? __pfx_kobject_init_and_add+0x10/0x10
[  276.558612][ T7849]  ? __raw_spin_lock_init+0x45/0x100
[  276.558636][ T7849]  ? __init_swait_queue_head+0xa9/0x150
[  276.558662][ T7849]  gfs2_sys_fs_add+0x257/0x480
[  276.558690][ T7849]  ? is_dynamic_key+0x1ac/0x1c0
[  276.558717][ T7849]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  276.558769][ T7849]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  276.558806][ T7849]  gfs2_fill_super+0x13a7/0x21d0
[  276.558845][ T7849]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.558878][ T7849]  ? sb_set_blocksize+0x155/0x240
[  276.558902][ T7849]  ? setup_bdev_super+0x4c1/0x5b0
[  276.558926][ T7849]  get_tree_bdev_flags+0x431/0x4f0
[  276.558947][ T7849]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.558969][ T7849]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  276.558997][ T7849]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  276.559026][ T7849]  gfs2_get_tree+0x51/0x1e0
[  276.559052][ T7849]  vfs_get_tree+0x92/0x2a0
[  276.559074][ T7849]  do_new_mount+0x341/0xd30
[  276.559097][ T7849]  ? apparmor_capable+0x126/0x170
[  276.559124][ T7849]  ? __pfx_do_new_mount+0x10/0x10
[  276.559161][ T7849]  ? ns_capable+0x89/0xe0
[  276.559192][ T7849]  ? user_path_at+0xd4/0x160
[  276.559220][ T7849]  __se_sys_mount+0x31d/0x420
[  276.559249][ T7849]  ? __pfx___se_sys_mount+0x10/0x10
[  276.559276][ T7849]  ? __x64_sys_mount+0x20/0xc0
[  276.559298][ T7849]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.559317][ T7849]  do_syscall_64+0x15f/0xf80
[  276.559340][ T7849]  ? trace_irq_disable+0x3b/0x140
[  276.559360][ T7849]  ? clear_bhb_loop+0x40/0x90
[  276.559384][ T7849]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.559402][ T7849] RIP: 0033:0x7fd84279b5ca
[  276.559420][ T7849] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  276.559437][ T7849] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.559457][ T7849] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  276.559469][ T7849] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  276.559480][ T7849] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  276.559491][ T7849] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  276.559501][ T7849] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  276.559532][ T7849]  </TASK>
[  276.559561][ T7849] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.683702][ T7847] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.881172][ T7849] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  276.917501][ T7853] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.942556][ T7853] CPU: 0 UID: 0 PID: 7853 Comm: syz.0.255 Not tainted syzkaller #0 PREEMPT(full) 
[  276.942578][ T7853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  276.942588][ T7853] Call Trace:
[  276.942594][ T7853]  <TASK>
[  276.942601][ T7853]  dump_stack_lvl+0xe8/0x150
[  276.942628][ T7853]  sysfs_create_dir_ns+0x271/0x2a0
[  276.942649][ T7853]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  276.942669][ T7853]  ? do_raw_spin_unlock+0xf5/0x210
[  276.942689][ T7853]  kobject_add_internal+0x62b/0xd00
[  276.942717][ T7853]  kobject_init_and_add+0x12b/0x1a0
[  276.942742][ T7853]  ? __pfx_kobject_init_and_add+0x10/0x10
[  276.942764][ T7853]  ? __raw_spin_lock_init+0x45/0x100
[  276.942785][ T7853]  ? __init_swait_queue_head+0xa9/0x150
[  276.942806][ T7853]  gfs2_sys_fs_add+0x257/0x480
[  276.942827][ T7853]  ? is_dynamic_key+0x1ac/0x1c0
[  276.942848][ T7853]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  276.942875][ T7853]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  276.942905][ T7853]  gfs2_fill_super+0x13a7/0x21d0
[  276.942934][ T7853]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.942956][ T7853]  ? sb_set_blocksize+0x155/0x240
[  276.942977][ T7853]  ? setup_bdev_super+0x4c1/0x5b0
[  276.942998][ T7853]  get_tree_bdev_flags+0x431/0x4f0
[  276.943017][ T7853]  ? __pfx_gfs2_fill_super+0x10/0x10
[  276.943039][ T7853]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  276.943057][ T7853]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  276.943086][ T7853]  gfs2_get_tree+0x51/0x1e0
[  276.943112][ T7853]  vfs_get_tree+0x92/0x2a0
[  276.943133][ T7853]  do_new_mount+0x341/0xd30
[  276.943155][ T7853]  ? apparmor_capable+0x126/0x170
[  276.943183][ T7853]  ? __pfx_do_new_mount+0x10/0x10
[  276.943206][ T7853]  ? ns_capable+0x89/0xe0
[  276.943244][ T7853]  ? user_path_at+0xd4/0x160
[  276.943270][ T7853]  __se_sys_mount+0x31d/0x420
[  276.943304][ T7853]  ? __pfx___se_sys_mount+0x10/0x10
[  276.943335][ T7853]  ? __x64_sys_mount+0x20/0xc0
[  276.943358][ T7853]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.943379][ T7853]  do_syscall_64+0x15f/0xf80
[  276.943403][ T7853]  ? trace_irq_disable+0x3b/0x140
[  276.943425][ T7853]  ? clear_bhb_loop+0x40/0x90
[  276.943449][ T7853]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  276.943468][ T7853] RIP: 0033:0x7f73fed9b5ca
[  276.943487][ T7853] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  276.943504][ T7853] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.943533][ T7853] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  276.943547][ T7853] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  276.943561][ T7853] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  276.943574][ T7853] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  276.943587][ T7853] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  276.943627][ T7853]  </TASK>
[  276.943665][ T7853] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.315185][ T7853] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.458428][   T30] INFO: task kworker/0:4:5945 blocked in I/O wait for more than 143 seconds.
[  277.467556][   T30]       Not tainted syzkaller #0
[  277.488419][   T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  277.529857][   T30] task:kworker/0:4     state:D stack:25288 pid:5945  tgid:5945  ppid:2      task_flags:0x4208060 flags:0x00080000
[  277.576925][   T30] Workqueue: gfs2_recovery gfs2_recover_func
[  277.618239][   T30] Call Trace:
[  277.621654][   T30]  <TASK>
[  277.624605][   T30]  __schedule+0x165c/0x5520
[  277.643067][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  277.658764][   T30]  ? __pfx___schedule+0x10/0x10
[  277.677229][   T30]  ? schedule+0x90/0x360
[  277.692215][   T30]  schedule+0x164/0x360
[  277.711568][   T30]  io_schedule+0x7f/0xd0
[  277.726117][   T30]  folio_wait_bit_common+0x6d8/0xbc0
[  277.742437][   T30]  ? filemap_get_entry+0xcd/0x3f0
[  277.767692][   T30]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  277.791065][   T30]  ? __submit_bio+0x28d/0x580
[  277.812454][   T30]  ? __pfx_wake_page_function+0x10/0x10
[  277.831165][   T30]  ? __get_log_header+0x2a3/0x630
[  277.845379][   T30]  ? __filemap_get_folio_mpol+0x740/0xb00
[  277.863362][   T30]  gfs2_jhead_process_page+0x175/0x670
[  277.884369][   T30]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  277.905625][   T30]  gfs2_find_jhead+0xbd2/0xd30
[  277.921322][   T30]  gfs2_recover_func+0x6cf/0x1f60
[  277.946144][   T30]  ? __pfx_gfs2_recover_func+0x10/0x10
[  277.963409][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  277.981764][   T30]  ? look_up_lock_class+0x57/0x110
[  278.010138][   T30]  ? register_lock_class+0x31/0x2e0
[  278.020116][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  278.036249][   T30]  ? trace_hrtimer_start+0x82/0x200
[  278.051796][   T30]  ? do_raw_spin_lock+0x12b/0x2f0
[  278.068403][   T30]  ? lock_acquire+0x106/0x350
[  278.082307][   T30]  ? process_scheduled_works+0xa70/0x1860
[  278.107934][   T30]  ? process_scheduled_works+0xa70/0x1860
[  278.128464][   T30]  ? process_scheduled_works+0xa70/0x1860
[  278.147576][   T30]  process_scheduled_works+0xb5d/0x1860
[  278.164874][   T30]  ? __pfx_process_scheduled_works+0x10/0x10
[  278.184306][   T30]  ? assign_work+0x3d5/0x5e0
[  278.201990][   T30]  worker_thread+0xa53/0xfc0
[  278.218322][   T30]  kthread+0x388/0x470
[  278.232716][   T30]  ? __pfx_worker_thread+0x10/0x10
[  278.251819][   T30]  ? __pfx_kthread+0x10/0x10
[  278.267968][   T30]  ret_from_fork+0x514/0xb70
[  278.281995][   T30]  ? __pfx_ret_from_fork+0x10/0x10
[  278.313413][   T30]  ? __switch_to+0xc7d/0x1420
[  278.319052][   T30]  ? __pfx_kthread+0x10/0x10
[  278.332290][   T30]  ret_from_fork_asm+0x1a/0x30
[  278.347503][   T30]  </TASK>
[  278.360532][   T30] INFO: task syz.3.22:6585 blocked for more than 144 seconds.
[  278.383392][   T30]       Not tainted syzkaller #0
[  278.404135][   T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  278.432619][   T30] task:syz.3.22        state:D stack:25112 pid:6585  tgid:6583  ppid:6363   task_flags:0x400140 flags:0x00080002
[  278.469698][   T30] Call Trace:
[  278.479751][   T30]  <TASK>
[  278.488568][   T30]  __schedule+0x165c/0x5520
[  278.502711][   T30]  ? __lock_acquire+0x6b5/0x2cf0
[  278.528260][   T30]  ? wakeup_preempt_fair+0x6a1/0xa40
[  278.538473][   T30]  ? __pfx___schedule+0x10/0x10
[  278.551148][   T30]  ? schedule+0x90/0x360
[  278.564598][   T30]  schedule+0x164/0x360
[  278.578016][   T30]  bit_wait+0x11/0xd0
[  278.592639][   T30]  __wait_on_bit+0xb9/0x310
[  278.617608][   T30]  ? __pfx_bit_wait+0x10/0x10
[  278.622724][   T30]  out_of_line_wait_on_bit+0x13b/0x190
[  278.639233][   T30]  ? __queue_work+0xc42/0xfc0
[  278.653318][   T30]  ? __pfx_bit_wait+0x10/0x10
[  278.658363][ T7865] loop2: detected capacity change from 0 to 32768
[  278.665575][ T7867] loop4: detected capacity change from 0 to 32768
[  278.672078][   T30]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  278.684239][   T30]  ? __pfx_wake_bit_function+0x10/0x10
[  278.697155][   T30]  gfs2_recover_journal+0xda/0x140
[  278.704308][ T7865] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.730591][   T30]  init_journal+0x16ad/0x2280
[  278.757532][ T7867] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.768298][ T7865] CPU: 0 UID: 0 PID: 7865 Comm: syz.2.256 Not tainted syzkaller #0 PREEMPT(full) 
[  278.768323][ T7865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  278.768335][ T7865] Call Trace:
[  278.768343][ T7865]  <TASK>
[  278.768352][ T7865]  dump_stack_lvl+0xe8/0x150
[  278.768391][ T7865]  sysfs_create_dir_ns+0x271/0x2a0
[  278.768420][ T7865]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  278.768447][ T7865]  ? do_raw_spin_unlock+0xf5/0x210
[  278.768475][ T7865]  kobject_add_internal+0x62b/0xd00
[  278.768511][ T7865]  kobject_init_and_add+0x12b/0x1a0
[  278.768543][ T7865]  ? __pfx_kobject_init_and_add+0x10/0x10
[  278.768572][ T7865]  ? __raw_spin_lock_init+0x45/0x100
[  278.768596][ T7865]  ? __init_swait_queue_head+0xa9/0x150
[  278.768622][ T7865]  gfs2_sys_fs_add+0x257/0x480
[  278.768650][ T7865]  ? is_dynamic_key+0x1ac/0x1c0
[  278.768677][ T7865]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  278.768713][ T7865]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  278.768748][ T7865]  gfs2_fill_super+0x13a7/0x21d0
[  278.768787][ T7865]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.768815][ T7865]  ? sb_set_blocksize+0x155/0x240
[  278.768840][ T7865]  ? setup_bdev_super+0x4c1/0x5b0
[  278.768863][ T7865]  get_tree_bdev_flags+0x431/0x4f0
[  278.768884][ T7865]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.768905][ T7865]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  278.768922][ T7865]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  278.768951][ T7865]  gfs2_get_tree+0x51/0x1e0
[  278.768978][ T7865]  vfs_get_tree+0x92/0x2a0
[  278.769001][ T7865]  do_new_mount+0x341/0xd30
[  278.769024][ T7865]  ? apparmor_capable+0x126/0x170
[  278.769052][ T7865]  ? __pfx_do_new_mount+0x10/0x10
[  278.769076][ T7865]  ? ns_capable+0x89/0xe0
[  278.769112][ T7865]  ? user_path_at+0xd4/0x160
[  278.769141][ T7865]  __se_sys_mount+0x31d/0x420
[  278.769172][ T7865]  ? __pfx___se_sys_mount+0x10/0x10
[  278.769203][ T7865]  ? __x64_sys_mount+0x20/0xc0
[  278.769227][ T7865]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.769248][ T7865]  do_syscall_64+0x15f/0xf80
[  278.769272][ T7865]  ? trace_irq_disable+0x3b/0x140
[  278.769295][ T7865]  ? clear_bhb_loop+0x40/0x90
[  278.769318][ T7865]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.769337][ T7865] RIP: 0033:0x7f48f8d9b5ca
[  278.769356][ T7865] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  278.769379][ T7865] RSP: 002b:00007f48f9c67e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.769400][ T7865] RAX: ffffffffffffffda RBX: 00007f48f9c67ee0 RCX: 00007f48f8d9b5ca
[  278.769414][ T7865] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f48f9c67ea0
[  278.769428][ T7865] RBP: 000020000001f680 R08: 00007f48f9c67ee0 R09: 0000000000000084
[  278.769442][ T7865] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  278.769454][ T7865] R13: 00007f48f9c67ea0 R14: 000000000001f790 R15: 00002000000001c0
[  278.769485][ T7865]  </TASK>
[  278.769511][ T7865] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.776805][   T30]  ? init_inodes+0xdb/0x320
[  278.778826][ T7867] CPU: 0 UID: 0 PID: 7867 Comm: syz.4.257 Not tainted syzkaller #0 PREEMPT(full) 
[  278.778848][ T7867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  278.778859][ T7867] Call Trace:
[  278.778867][ T7867]  <TASK>
[  278.778875][ T7867]  dump_stack_lvl+0xe8/0x150
[  278.778904][ T7867]  sysfs_create_dir_ns+0x271/0x2a0
[  278.778949][ T7867]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  278.778975][ T7867]  ? do_raw_spin_unlock+0xf5/0x210
[  278.779002][ T7867]  kobject_add_internal+0x62b/0xd00
[  278.779036][ T7867]  kobject_init_and_add+0x12b/0x1a0
[  278.779067][ T7867]  ? __pfx_kobject_init_and_add+0x10/0x10
[  278.779095][ T7867]  ? __raw_spin_lock_init+0x45/0x100
[  278.779119][ T7867]  ? __init_swait_queue_head+0xa9/0x150
[  278.779143][ T7867]  gfs2_sys_fs_add+0x257/0x480
[  278.779169][ T7867]  ? is_dynamic_key+0x1ac/0x1c0
[  278.779195][ T7867]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  278.779229][ T7867]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  278.779263][ T7867]  gfs2_fill_super+0x13a7/0x21d0
[  278.779300][ T7867]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.779326][ T7867]  ? sb_set_blocksize+0x155/0x240
[  278.779350][ T7867]  ? setup_bdev_super+0x4c1/0x5b0
[  278.779377][ T7867]  get_tree_bdev_flags+0x431/0x4f0
[  278.779396][ T7867]  ? __pfx_gfs2_fill_super+0x10/0x10
[  278.779419][ T7867]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  278.779435][ T7867]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  278.779463][ T7867]  gfs2_get_tree+0x51/0x1e0
[  278.779488][ T7867]  vfs_get_tree+0x92/0x2a0
[  278.779509][ T7867]  do_new_mount+0x341/0xd30
[  278.779530][ T7867]  ? apparmor_capable+0x126/0x170
[  278.779557][ T7867]  ? __pfx_do_new_mount+0x10/0x10
[  278.779580][ T7867]  ? ns_capable+0x89/0xe0
[  278.779616][ T7867]  ? user_path_at+0xd4/0x160
[  278.779644][ T7867]  __se_sys_mount+0x31d/0x420
[  278.779673][ T7867]  ? __pfx___se_sys_mount+0x10/0x10
[  278.779703][ T7867]  ? __x64_sys_mount+0x20/0xc0
[  278.779726][ T7867]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.779745][ T7867]  do_syscall_64+0x15f/0xf80
[  278.779767][ T7867]  ? trace_irq_disable+0x3b/0x140
[  278.779790][ T7867]  ? clear_bhb_loop+0x40/0x90
[  278.779813][ T7867]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  278.779831][ T7867] RIP: 0033:0x7f91c659b5ca
[  278.779848][ T7867] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  278.779865][ T7867] RSP: 002b:00007f91c5bfde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.779884][ T7867] RAX: ffffffffffffffda RBX: 00007f91c5bfdee0 RCX: 00007f91c659b5ca
[  278.779898][ T7867] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f91c5bfdea0
[  278.779912][ T7867] RBP: 000020000001f680 R08: 00007f91c5bfdee0 R09: 0000000000000084
[  278.779925][ T7867] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  278.779937][ T7867] R13: 00007f91c5bfdea0 R14: 000000000001f790 R15: 00002000000001c0
[  278.779967][ T7867]  </TASK>
[  278.779992][ T7867] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.800713][   T30]  ? __pfx_init_journal+0x10/0x10
[  278.965499][ T7869] loop5: detected capacity change from 0 to 32768
[  278.968434][ T7865] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.108603][ T7871] loop0: detected capacity change from 0 to 32768
[  279.113659][ T7867] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.401360][ T7869] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.423261][   T30]  ? snprintf+0xe8/0x140
[  279.428234][   T30]  ? init_inodes+0xdb/0x320
[  279.435720][ T7869] CPU: 0 UID: 0 PID: 7869 Comm: syz.5.258 Not tainted syzkaller #0 PREEMPT(full) 
[  279.435745][ T7869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  279.435757][ T7869] Call Trace:
[  279.435765][ T7869]  <TASK>
[  279.435773][ T7869]  dump_stack_lvl+0xe8/0x150
[  279.435805][ T7869]  sysfs_create_dir_ns+0x271/0x2a0
[  279.435833][ T7869]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  279.435860][ T7869]  ? do_raw_spin_unlock+0xf5/0x210
[  279.435887][ T7869]  kobject_add_internal+0x62b/0xd00
[  279.435925][ T7869]  kobject_init_and_add+0x12b/0x1a0
[  279.435956][ T7869]  ? __pfx_kobject_init_and_add+0x10/0x10
[  279.435984][ T7869]  ? __raw_spin_lock_init+0x45/0x100
[  279.436010][ T7869]  ? __init_swait_queue_head+0xa9/0x150
[  279.436036][ T7869]  gfs2_sys_fs_add+0x257/0x480
[  279.436062][ T7869]  ? is_dynamic_key+0x1ac/0x1c0
[  279.436089][ T7869]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  279.436125][ T7869]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  279.436161][ T7869]  gfs2_fill_super+0x13a7/0x21d0
[  279.436199][ T7869]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.436228][ T7869]  ? sb_set_blocksize+0x155/0x240
[  279.436253][ T7869]  ? setup_bdev_super+0x4c1/0x5b0
[  279.436276][ T7869]  get_tree_bdev_flags+0x431/0x4f0
[  279.436296][ T7869]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.436318][ T7869]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  279.436337][ T7869]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  279.436374][ T7869]  gfs2_get_tree+0x51/0x1e0
[  279.436400][ T7869]  vfs_get_tree+0x92/0x2a0
[  279.436422][ T7869]  do_new_mount+0x341/0xd30
[  279.436444][ T7869]  ? apparmor_capable+0x126/0x170
[  279.436472][ T7869]  ? __pfx_do_new_mount+0x10/0x10
[  279.436495][ T7869]  ? ns_capable+0x89/0xe0
[  279.436532][ T7869]  ? user_path_at+0xd4/0x160
[  279.436561][ T7869]  __se_sys_mount+0x31d/0x420
[  279.436595][ T7869]  ? __pfx___se_sys_mount+0x10/0x10
[  279.436625][ T7869]  ? __x64_sys_mount+0x20/0xc0
[  279.436648][ T7869]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.436670][ T7869]  do_syscall_64+0x15f/0xf80
[  279.436693][ T7869]  ? trace_irq_disable+0x3b/0x140
[  279.436716][ T7869]  ? clear_bhb_loop+0x40/0x90
[  279.436740][ T7869]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.436759][ T7869] RIP: 0033:0x7fd84279b5ca
[  279.436778][ T7869] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  279.436795][ T7869] RSP: 002b:00007fd843691e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.436815][ T7869] RAX: ffffffffffffffda RBX: 00007fd843691ee0 RCX: 00007fd84279b5ca
[  279.436829][ T7869] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd843691ea0
[  279.436843][ T7869] RBP: 000020000001f680 R08: 00007fd843691ee0 R09: 0000000000000084
[  279.436857][ T7869] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  279.436869][ T7869] R13: 00007fd843691ea0 R14: 000000000001f790 R15: 00002000000001c0
[  279.436900][ T7869]  </TASK>
[  279.436935][ T7869] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.438923][ T7871] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.447971][   T30]  ? __pfx_snprintf+0x10/0x10
[  279.465124][ T7869] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.467996][   T30]  ? gfs2_glock_nq_num+0x13d/0x170
[  279.757619][ T7871] CPU: 1 UID: 0 PID: 7871 Comm: syz.0.259 Not tainted syzkaller #0 PREEMPT(full) 
[  279.757645][ T7871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  279.757656][ T7871] Call Trace:
[  279.757664][ T7871]  <TASK>
[  279.757672][ T7871]  dump_stack_lvl+0xe8/0x150
[  279.757704][ T7871]  sysfs_create_dir_ns+0x271/0x2a0
[  279.757731][ T7871]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  279.757757][ T7871]  ? do_raw_spin_unlock+0xf5/0x210
[  279.757784][ T7871]  kobject_add_internal+0x62b/0xd00
[  279.757819][ T7871]  kobject_init_and_add+0x12b/0x1a0
[  279.757850][ T7871]  ? __pfx_kobject_init_and_add+0x10/0x10
[  279.757878][ T7871]  ? __raw_spin_lock_init+0x45/0x100
[  279.757901][ T7871]  ? __init_swait_queue_head+0xa9/0x150
[  279.757926][ T7871]  gfs2_sys_fs_add+0x257/0x480
[  279.757953][ T7871]  ? is_dynamic_key+0x1ac/0x1c0
[  279.757979][ T7871]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  279.758013][ T7871]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  279.758047][ T7871]  gfs2_fill_super+0x13a7/0x21d0
[  279.758085][ T7871]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.758115][ T7871]  ? sb_set_blocksize+0x155/0x240
[  279.758139][ T7871]  ? setup_bdev_super+0x4c1/0x5b0
[  279.758161][ T7871]  get_tree_bdev_flags+0x431/0x4f0
[  279.758181][ T7871]  ? __pfx_gfs2_fill_super+0x10/0x10
[  279.758201][ T7871]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  279.758219][ T7871]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  279.758247][ T7871]  gfs2_get_tree+0x51/0x1e0
[  279.758272][ T7871]  vfs_get_tree+0x92/0x2a0
[  279.758304][ T7871]  do_new_mount+0x341/0xd30
[  279.758326][ T7871]  ? apparmor_capable+0x126/0x170
[  279.758353][ T7871]  ? __pfx_do_new_mount+0x10/0x10
[  279.758376][ T7871]  ? ns_capable+0x89/0xe0
[  279.758411][ T7871]  ? user_path_at+0xd4/0x160
[  279.758438][ T7871]  __se_sys_mount+0x31d/0x420
[  279.758468][ T7871]  ? __pfx___se_sys_mount+0x10/0x10
[  279.758497][ T7871]  ? __x64_sys_mount+0x20/0xc0
[  279.758520][ T7871]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.758540][ T7871]  do_syscall_64+0x15f/0xf80
[  279.758563][ T7871]  ? trace_irq_disable+0x3b/0x140
[  279.758584][ T7871]  ? clear_bhb_loop+0x40/0x90
[  279.758607][ T7871]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  279.758625][ T7871] RIP: 0033:0x7f73fed9b5ca
[  279.758643][ T7871] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  279.758660][ T7871] RSP: 002b:00007f73ffb66e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.758680][ T7871] RAX: ffffffffffffffda RBX: 00007f73ffb66ee0 RCX: 00007f73fed9b5ca
[  279.758694][ T7871] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f73ffb66ea0
[  279.758707][ T7871] RBP: 000020000001f680 R08: 00007f73ffb66ee0 R09: 0000000000000084
[  279.758720][ T7871] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  279.758733][ T7871] R13: 00007f73ffb66ea0 R14: 000000000001f790 R15: 00002000000001c0
[  279.758763][ T7871]  </TASK>
[  279.758909][ T7871] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.862756][   T30]  init_inodes+0xdb/0x320
[  279.876660][ T7871] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.879818][ T7873] loop1: detected capacity change from 0 to 32768
[  280.099254][   T30]  gfs2_fill_super+0x1a38/0x21d0
[  280.105266][ T7873] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.112819][   T30]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.118230][ T7873] CPU: 0 UID: 0 PID: 7873 Comm: syz.1.260 Not tainted syzkaller #0 PREEMPT(full) 
[  280.118252][ T7873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  280.118263][ T7873] Call Trace:
[  280.118271][ T7873]  <TASK>
[  280.118279][ T7873]  dump_stack_lvl+0xe8/0x150
[  280.118310][ T7873]  sysfs_create_dir_ns+0x271/0x2a0
[  280.118336][ T7873]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
2026/03/28 19:51:35 executed programs: 254
[  280.118363][ T7873]  ? do_raw_spin_unlock+0xf5/0x210
[  280.118390][ T7873]  kobject_add_internal+0x62b/0xd00
[  280.118425][ T7873]  kobject_init_and_add+0x12b/0x1a0
[  280.118456][ T7873]  ? __pfx_kobject_init_and_add+0x10/0x10
[  280.118484][ T7873]  ? __raw_spin_lock_init+0x45/0x100
[  280.118509][ T7873]  ? __init_swait_queue_head+0xa9/0x150
[  280.118536][ T7873]  gfs2_sys_fs_add+0x257/0x480
[  280.118564][ T7873]  ? is_dynamic_key+0x1ac/0x1c0
[  280.118591][ T7873]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  280.118627][ T7873]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  280.118664][ T7873]  gfs2_fill_super+0x13a7/0x21d0
[  280.118703][ T7873]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.118730][ T7873]  ? sb_set_blocksize+0x155/0x240
[  280.118755][ T7873]  ? setup_bdev_super+0x4c1/0x5b0
[  280.118778][ T7873]  get_tree_bdev_flags+0x431/0x4f0
[  280.118817][ T7873]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.118838][ T7873]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  280.118855][ T7873]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  280.118882][ T7873]  gfs2_get_tree+0x51/0x1e0
[  280.118908][ T7873]  vfs_get_tree+0x92/0x2a0
[  280.118930][ T7873]  do_new_mount+0x341/0xd30
[  280.118953][ T7873]  ? apparmor_capable+0x126/0x170
[  280.118981][ T7873]  ? __pfx_do_new_mount+0x10/0x10
[  280.119010][ T7873]  ? ns_capable+0x89/0xe0
[  280.119047][ T7873]  ? user_path_at+0xd4/0x160
[  280.119076][ T7873]  __se_sys_mount+0x31d/0x420
[  280.119107][ T7873]  ? __pfx___se_sys_mount+0x10/0x10
[  280.119137][ T7873]  ? __x64_sys_mount+0x20/0xc0
[  280.119161][ T7873]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.119182][ T7873]  do_syscall_64+0x15f/0xf80
[  280.119204][ T7873]  ? trace_irq_disable+0x3b/0x140
[  280.119228][ T7873]  ? clear_bhb_loop+0x40/0x90
[  280.119250][ T7873]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.119269][ T7873] RIP: 0033:0x7f6fccf9b5ca
[  280.119288][ T7873] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  280.119305][ T7873] RSP: 002b:00007f6fcde28e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.119326][ T7873] RAX: ffffffffffffffda RBX: 00007f6fcde28ee0 RCX: 00007f6fccf9b5ca
[  280.119341][ T7873] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f6fcde28ea0
[  280.119355][ T7873] RBP: 000020000001f680 R08: 00007f6fcde28ee0 R09: 0000000000000084
[  280.119368][ T7873] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  280.119381][ T7873] R13: 00007f6fcde28ea0 R14: 000000000001f790 R15: 00002000000001c0
[  280.119413][ T7873]  </TASK>
[  280.119440][ T7873] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.258210][   T30]  ? init_locking+0xb8/0x210
[  280.261628][ T7873] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.323811][   T30]  ? sb_set_blocksize+0x155/0x240
[  280.454616][   T30]  ? setup_bdev_super+0x4c1/0x5b0
[  280.525739][   T30]  get_tree_bdev_flags+0x431/0x4f0
[  280.550502][   T30]  ? __pfx_gfs2_fill_super+0x10/0x10
[  280.584674][   T30]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  280.611914][   T30]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  280.651364][   T30]  gfs2_get_tree+0x51/0x1e0
[  280.682085][   T30]  vfs_get_tree+0x92/0x2a0
[  280.701011][   T30]  do_new_mount+0x341/0xd30
[  280.727063][   T30]  ? apparmor_capable+0x126/0x170
[  280.734708][   T30]  ? __pfx_do_new_mount+0x10/0x10
[  280.752731][   T30]  ? ns_capable+0x89/0xe0
[  280.764609][   T30]  ? user_path_at+0xd4/0x160
[  280.783197][   T30]  __se_sys_mount+0x31d/0x420
[  280.795427][   T30]  ? __pfx___se_sys_mount+0x10/0x10
[  280.824079][   T30]  ? __x64_sys_mount+0x20/0xc0
[  280.840995][   T30]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.864656][   T30]  do_syscall_64+0x15f/0xf80
[  280.894244][   T30]  ? trace_irq_disable+0x3b/0x140
[  280.921214][   T30]  ? clear_bhb_loop+0x40/0x90
[  280.955298][   T30]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  280.975448][   T30] RIP: 0033:0x7fbcf879b5ca
[  280.990949][   T30] RSP: 002b:00007fbcf9572e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.026518][   T30] RAX: ffffffffffffffda RBX: 00007fbcf9572ee0 RCX: 00007fbcf879b5ca
[  281.055536][   T30] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbcf9572ea0
[  281.083238][   T30] RBP: 000020000001f680 R08: 00007fbcf9572ee0 R09: 0000000000000084
[  281.099704][   T30] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  281.119294][   T30] R13: 00007fbcf9572ea0 R14: 000000000001f790 R15: 00002000000001c0
[  281.137482][   T30]  </TASK>
[  281.154791][   T30] 
[  281.154791][   T30] Showing all locks held in the system:
[  281.166154][   T30] 1 lock held by pool_workqueue_/3:
[  281.188270][   T30]  #0: ffffffff8e7633e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
[  281.229684][   T30] 2 locks held by kworker/u8:1/13:
[  281.245379][   T30]  #0: ffff8880b873ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[  281.277465][   T30]  #1: ffff8880b8724588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[  281.314753][   T30] 1 lock held by khungtaskd/30:
[  281.337657][   T30]  #0: ffffffff8e75d0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  281.372256][   T30] 2 locks held by getty/5598:
[  281.388673][   T30]  #0: ffff88803773f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  281.420722][   T30]  #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
[  281.457664][   T30] 2 locks held by kworker/0:4/5945:
[  281.478415][   T30]  #0: ffff88801b721540 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
[  281.517655][   T30]  #1: ffffc900036b7c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
[  281.557298][   T30] 1 lock held by syz.3.22/6585:
[  281.572588][   T30]  #0: ffff88801b3d60d8 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0
[  281.605780][   T30] 2 locks held by syz.2.261/7885:
[  281.621758][   T30] 3 locks held by syz.4.262/7887:
[  281.637203][   T30] 3 locks held by syz.5.263/7889:
[  281.653412][   T30] 2 locks held by syz.1.264/7891:
[  281.671414][   T30] 2 locks held by syz.0.265/7893:
[  281.704832][   T30] 
[  281.715885][   T30] =============================================
[  281.715885][   T30] 
[  281.762061][   T30] NMI backtrace for cpu 1
[  281.762083][   T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  281.762103][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  281.762115][   T30] Call Trace:
[  281.762122][   T30]  <TASK>
[  281.762130][   T30]  dump_stack_lvl+0xe8/0x150
[  281.762164][   T30]  nmi_cpu_backtrace+0x274/0x2d0
[  281.762185][   T30]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  281.762218][   T30]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  281.762240][   T30]  sys_info+0x135/0x170
[  281.762265][   T30]  watchdog+0xfd3/0x1030
[  281.762294][   T30]  ? watchdog+0x1c9/0x1030
[  281.762321][   T30]  kthread+0x388/0x470
[  281.762343][   T30]  ? __pfx_watchdog+0x10/0x10
[  281.762363][   T30]  ? __pfx_kthread+0x10/0x10
[  281.762386][   T30]  ret_from_fork+0x514/0xb70
[  281.762415][   T30]  ? __pfx_ret_from_fork+0x10/0x10
[  281.762440][   T30]  ? __switch_to+0xc7d/0x1420
[  281.762467][   T30]  ? __pfx_kthread+0x10/0x10
[  281.762490][   T30]  ret_from_fork_asm+0x1a/0x30
[  281.762523][   T30]  </TASK>
[  281.762531][   T30] Sending NMI from CPU 1 to CPUs 0:
[  281.855996][ T7885] loop2: detected capacity change from 0 to 32768
[  281.887408][    C0] NMI backtrace for cpu 0
[  281.887426][    C0] CPU: 0 UID: 0 PID: 7887 Comm: syz.4.262 Not tainted syzkaller #0 PREEMPT(full) 
[  281.887446][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  281.887463][    C0] RIP: 0010:__lock_acquire+0x339/0x2cf0
[  281.887494][    C0] Code: 03 41 c1 e5 10 41 09 d5 8b 54 24 10 83 e2 01 c1 e2 12 44 09 ea c1 e3 14 09 d3 8b 14 24 c1 e2 13 41 c1 e4 15 41 09 d4 41 09 cc <41> 09 dc 45 89 64 c7 20 41 89 7c c7 24 4c 89 7c 24 20 4d 8d 2c c7
[  281.887510][    C0] RSP: 0018:ffffc90006936df8 EFLAGS: 00000002
[  281.887525][    C0] RAX: 0000000000000005 RBX: 0000000000020000 RCX: 0000000000000007
[  281.887537][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  281.887548][    C0] RBP: 0000000000000001 R08: ffffffff81afcd3d R09: ffffffff8e75d0e0
[  281.887560][    C0] R10: ffffc900069370b8 R11: ffffffff81b15b50 R12: 0000000000000007
[  281.887572][    C0] R13: 0000000000020000 R14: ffff88802b0c1e80 R15: ffff88802b0c29d0
[  281.887586][    C0] FS:  00007f91c5bfe6c0(0000) GS:ffff88812543f000(0000) knlGS:0000000000000000
[  281.887601][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  281.887613][    C0] CR2: 00007f48f8d83540 CR3: 0000000076410000 CR4: 00000000003526f0
[  281.887628][    C0] Call Trace:
[  281.887635][    C0]  <TASK>
[  281.887646][    C0]  ? unwind_next_frame+0xa6/0x2550
[  281.887667][    C0]  ? unwind_next_frame+0xa6/0x2550
[  281.887686][    C0]  ? is_module_text_address+0x1d/0x1e0
[  281.887707][    C0]  lock_acquire+0x106/0x350
[  281.887730][    C0]  ? is_module_text_address+0x1d/0x1e0
[  281.887754][    C0]  ? unwind_next_frame+0xa6/0x2550
[  281.887770][    C0]  ? unwind_next_frame+0x1bbf/0x2550
[  281.887786][    C0]  ? is_module_text_address+0x1d/0x1e0
[  281.887814][    C0]  is_module_text_address+0x39/0x1e0
[  281.887835][    C0]  ? is_module_text_address+0x1d/0x1e0
[  281.887857][    C0]  kernel_text_address+0x94/0xe0
[  281.887879][    C0]  __kernel_text_address+0xd/0x30
[  281.887899][    C0]  unwind_get_return_address+0x4d/0x90
[  281.887916][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  281.887938][    C0]  arch_stack_walk+0xfb/0x150
[  281.887959][    C0]  stack_trace_save+0xa9/0x100
[  281.887980][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[  281.888003][    C0]  ? stack_depot_save_flags+0x33/0x810
[  281.888023][    C0]  save_stack+0x122/0x230
[  281.888039][    C0]  ? __pfx_save_stack+0x10/0x10
[  281.888053][    C0]  ? free_unref_folios+0xcec/0x1480
[  281.888069][    C0]  ? folios_put_refs+0x9ff/0xb40
[  281.888086][    C0]  ? free_pages_and_swap_cache+0x2b9/0x490
[  281.888107][    C0]  ? tlb_flush_mmu+0x6d3/0xa30
[  281.888123][    C0]  ? tlb_finish_mmu+0xf9/0x230
[  281.888139][    C0]  ? unmap_region+0x2a5/0x330
[  281.888157][    C0]  ? vms_complete_munmap_vmas+0x493/0xc60
[  281.888178][    C0]  ? do_vmi_align_munmap+0x3b7/0x4b0
[  281.888197][    C0]  ? do_vmi_munmap+0x252/0x2d0
[  281.888217][    C0]  ? __vm_munmap+0x22c/0x3d0
[  281.888239][    C0]  ? __x64_sys_munmap+0x60/0x70
[  281.888264][    C0]  ? do_syscall_64+0x15f/0xf80
[  281.888287][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.888308][    C0]  ? page_ext_put+0x97/0xc0
[  281.888337][    C0]  __reset_page_owner+0x71/0x1f0
[  281.888355][    C0]  free_unref_folios+0xcec/0x1480
[  281.888376][    C0]  folios_put_refs+0x9ff/0xb40
[  281.888396][    C0]  ? trace_sched_exit_tp+0x3a/0x130
[  281.888419][    C0]  ? __pfx_folios_put_refs+0x10/0x10
[  281.888438][    C0]  ? free_swap_cache+0x109/0x300
[  281.888460][    C0]  free_pages_and_swap_cache+0x2b9/0x490
[  281.888485][    C0]  ? __pfx_free_pages_and_swap_cache+0x10/0x10
[  281.888517][    C0]  ? __virt_addr_valid+0x1c8/0x5b0
[  281.888545][    C0]  tlb_flush_mmu+0x6d3/0xa30
[  281.888565][    C0]  tlb_finish_mmu+0xf9/0x230
[  281.888582][    C0]  unmap_region+0x2a5/0x330
[  281.888600][    C0]  ? vms_complete_munmap_vmas+0x247/0xc60
[  281.888620][    C0]  ? __pfx_unmap_region+0x10/0x10
[  281.888644][    C0]  ? __mas_set_range+0x12f/0x3c0
[  281.888667][    C0]  vms_complete_munmap_vmas+0x493/0xc60
[  281.888691][    C0]  ? __pfx_vms_complete_munmap_vmas+0x10/0x10
[  281.888715][    C0]  ? __mas_set_range+0x12f/0x3c0
[  281.888738][    C0]  do_vmi_align_munmap+0x3b7/0x4b0
[  281.888764][    C0]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[  281.888794][    C0]  do_vmi_munmap+0x252/0x2d0
[  281.888821][    C0]  __vm_munmap+0x22c/0x3d0
[  281.888843][    C0]  ? __pfx___vm_munmap+0x10/0x10
[  281.888868][    C0]  ? rcu_is_watching+0x15/0xb0
[  281.888887][    C0]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.888904][    C0]  __x64_sys_munmap+0x60/0x70
[  281.888928][    C0]  do_syscall_64+0x15f/0xf80
[  281.888949][    C0]  ? trace_irq_disable+0x3b/0x140
[  281.888969][    C0]  ? clear_bhb_loop+0x40/0x90
[  281.888988][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  281.889005][    C0] RIP: 0033:0x7f91c659a167
[  281.889020][    C0] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  281.889035][    C0] RSP: 002b:00007f91c5bfde08 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
[  281.889052][    C0] RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f91c659a167
[  281.889065][    C0] RDX: 0000000001000000 RSI: 0000000008400000 RDI: 00007f91bd600000
[  281.889077][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  281.889088][    C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  281.889098][    C0] R13: 00007f91c5bfdee0 R14: 00007f91c5bfdea0 R15: 00007f91bd600000
[  281.889117][    C0]  </TASK>
[  281.985449][ T7885] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.020985][   T30] Kernel panic - not syncing: hung_task: blocked tasks
[  282.021005][   T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  282.021027][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  282.021039][   T30] Call Trace:
[  282.021051][   T30]  <TASK>
[  282.021060][   T30]  vpanic+0x56c/0xa60
[  282.021093][   T30]  ? __pfx___schedule+0x10/0x10
[  282.021117][   T30]  ? __pfx_vpanic+0x10/0x10
[  282.021151][   T30]  panic+0xc5/0xd0
[  282.021176][   T30]  ? __pfx_panic+0x10/0x10
[  282.021203][   T30]  ? preempt_schedule_thunk+0x16/0x30
[  282.021231][   T30]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  282.021255][   T30]  watchdog+0x102c/0x1030
[  282.021284][   T30]  ? watchdog+0x1c9/0x1030
[  282.021311][   T30]  kthread+0x388/0x470
[  282.021333][   T30]  ? __pfx_watchdog+0x10/0x10
[  282.021354][   T30]  ? __pfx_kthread+0x10/0x10
[  282.021376][   T30]  ret_from_fork+0x514/0xb70
[  282.021405][   T30]  ? __pfx_ret_from_fork+0x10/0x10
[  282.021430][   T30]  ? __switch_to+0xc7d/0x1420
[  282.021458][   T30]  ? __pfx_kthread+0x10/0x10
[  282.021480][   T30]  ret_from_fork_asm+0x1a/0x30
[  282.021512][   T30]  </TASK>
[  282.026673][   T30] Kernel Offset: disabled