153][ T7417]  ? __init_swait_queue_head+0xa9/0x150
[  301.589181][ T7417]  gfs2_sys_fs_add+0x257/0x480
[  301.589200][ T7417]  ? is_dynamic_key+0x1ac/0x1c0
[  301.589225][ T7417]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  301.589251][ T7417]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  301.589298][ T7417]  gfs2_fill_super+0x141c/0x2220
[  301.589337][ T7417]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.589359][ T7417]  ? rt_spin_unlock+0x14f/0x200
[  301.589381][ T7417]  ? sb_set_blocksize+0x11b/0x210
[  301.589405][ T7417]  ? setup_bdev_super+0x4c1/0x5b0
[  301.589430][ T7417]  get_tree_bdev_flags+0x431/0x4f0
[  301.589452][ T7417]  ? __pfx_gfs2_fill_super+0x10/0x10
[  301.589474][ T7417]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  301.589492][ T7417]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  301.589523][ T7417]  gfs2_get_tree+0x51/0x1e0
[  301.589550][ T7417]  vfs_get_tree+0x92/0x2a0
[  301.589574][ T7417]  do_new_mount+0x341/0xd30
[  301.589590][ T7417]  ? apparmor_capable+0x126/0x170
[  301.589621][ T7417]  ? __pfx_do_new_mount+0x10/0x10
[  301.589639][ T7417]  ? ns_capable+0x89/0xe0
[  301.589664][ T7417]  ? user_path_at+0xd4/0x160
[  301.589689][ T7417]  ? user_path_at+0xd4/0x160
[  301.589711][ T7417]  __se_sys_mount+0x31d/0x420
[  301.589734][ T7417]  ? __pfx___se_sys_mount+0x10/0x10
[  301.589756][ T7417]  ? __x64_sys_mount+0x20/0xc0
[  301.589773][ T7417]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.589793][ T7417]  do_syscall_64+0x15f/0xf80
[  301.589826][ T7417]  ? trace_irq_disable+0x3b/0x140
[  301.589850][ T7417]  ? clear_bhb_loop+0x40/0x90
[  301.589872][ T7417]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  301.589890][ T7417] RIP: 0033:0x7fcd1d0cb5ca
[  301.589906][ T7417] 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
[  301.589922][ T7417] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  301.589942][ T7417] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  301.589956][ T7417] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  301.589969][ T7417] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  301.589981][ T7417] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  301.589992][ T7417] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  301.590018][ T7417]  </TASK>
[  301.590045][ T7417] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  301.590060][ T7417] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  302.193025][ T7421] loop2: detected capacity change from 0 to 32768
[  302.283856][ T7421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  302.283878][ T7421] CPU: 1 UID: 0 PID: 7421 Comm: syz.2.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  302.283901][ T7421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.283912][ T7421] Call Trace:
[  302.283919][ T7421]  <TASK>
[  302.283927][ T7421]  dump_stack_lvl+0xe8/0x150
[  302.283956][ T7421]  sysfs_create_dir_ns+0x271/0x2a0
[  302.283975][ T7421]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  302.283999][ T7421]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  302.284022][ T7421]  ? rt_spin_unlock+0x160/0x200
[  302.284045][ T7421]  kobject_add_internal+0x631/0xd10
[  302.284071][ T7421]  kobject_init_and_add+0x12b/0x1a0
[  302.284096][ T7421]  ? __pfx_kobject_init_and_add+0x10/0x10
[  302.284116][ T7421]  ? __raw_spin_lock_init+0x45/0x100
[  302.284141][ T7421]  ? __init_swait_queue_head+0xa9/0x150
[  302.284168][ T7421]  gfs2_sys_fs_add+0x257/0x480
[  302.284187][ T7421]  ? is_dynamic_key+0x1ac/0x1c0
[  302.284212][ T7421]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  302.284239][ T7421]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  302.284278][ T7421]  gfs2_fill_super+0x141c/0x2220
[  302.284319][ T7421]  ? __pfx_gfs2_fill_super+0x10/0x10
[  302.284341][ T7421]  ? rt_spin_unlock+0x14f/0x200
[  302.284366][ T7421]  ? sb_set_blocksize+0x11b/0x210
[  302.284394][ T7421]  ? setup_bdev_super+0x4c1/0x5b0
[  302.284421][ T7421]  get_tree_bdev_flags+0x431/0x4f0
[  302.284445][ T7421]  ? __pfx_gfs2_fill_super+0x10/0x10
[  302.284469][ T7421]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  302.284497][ T7421]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  302.284530][ T7421]  gfs2_get_tree+0x51/0x1e0
[  302.284557][ T7421]  vfs_get_tree+0x92/0x2a0
[  302.284582][ T7421]  do_new_mount+0x341/0xd30
[  302.284599][ T7421]  ? apparmor_capable+0x126/0x170
[  302.284630][ T7421]  ? __pfx_do_new_mount+0x10/0x10
[  302.284649][ T7421]  ? ns_capable+0x89/0xe0
[  302.284674][ T7421]  ? user_path_at+0xd4/0x160
[  302.284698][ T7421]  ? user_path_at+0xd4/0x160
[  302.284721][ T7421]  __se_sys_mount+0x31d/0x420
[  302.284745][ T7421]  ? __pfx___se_sys_mount+0x10/0x10
[  302.284768][ T7421]  ? __x64_sys_mount+0x20/0xc0
[  302.284784][ T7421]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.284803][ T7421]  do_syscall_64+0x15f/0xf80
[  302.284826][ T7421]  ? trace_irq_disable+0x3b/0x140
[  302.284849][ T7421]  ? clear_bhb_loop+0x40/0x90
[  302.284871][ T7421]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  302.284890][ T7421] RIP: 0033:0x7fda0394b5ca
[  302.284907][ T7421] 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
[  302.284923][ T7421] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  302.284942][ T7421] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  302.284956][ T7421] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  302.284969][ T7421] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  302.284981][ T7421] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  302.284993][ T7421] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  302.285022][ T7421]  </TASK>
[  302.285047][ T7421] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  302.285062][ T7421] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  303.364568][ T7437] loop5: detected capacity change from 0 to 32768
[  303.400191][ T7437] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  303.400213][ T7437] CPU: 1 UID: 0 PID: 7437 Comm: syz.5.218 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  303.400235][ T7437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  303.400246][ T7437] Call Trace:
[  303.400253][ T7437]  <TASK>
[  303.400261][ T7437]  dump_stack_lvl+0xe8/0x150
[  303.400291][ T7437]  sysfs_create_dir_ns+0x271/0x2a0
[  303.400312][ T7437]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  303.400336][ T7437]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  303.400359][ T7437]  ? rt_spin_unlock+0x160/0x200
[  303.400382][ T7437]  kobject_add_internal+0x631/0xd10
[  303.400407][ T7437]  kobject_init_and_add+0x12b/0x1a0
[  303.400432][ T7437]  ? __pfx_kobject_init_and_add+0x10/0x10
[  303.400452][ T7437]  ? __raw_spin_lock_init+0x45/0x100
[  303.400477][ T7437]  ? __init_swait_queue_head+0xa9/0x150
[  303.400504][ T7437]  gfs2_sys_fs_add+0x257/0x480
[  303.400524][ T7437]  ? is_dynamic_key+0x1ac/0x1c0
[  303.400549][ T7437]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  303.400576][ T7437]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  303.400614][ T7437]  gfs2_fill_super+0x141c/0x2220
[  303.400656][ T7437]  ? __pfx_gfs2_fill_super+0x10/0x10
[  303.400675][ T7437]  ? rt_spin_unlock+0x14f/0x200
[  303.400697][ T7437]  ? sb_set_blocksize+0x11b/0x210
[  303.400722][ T7437]  ? setup_bdev_super+0x4c1/0x5b0
[  303.400747][ T7437]  get_tree_bdev_flags+0x431/0x4f0
[  303.400769][ T7437]  ? __pfx_gfs2_fill_super+0x10/0x10
[  303.400793][ T7437]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  303.400813][ T7437]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  303.400845][ T7437]  gfs2_get_tree+0x51/0x1e0
[  303.400873][ T7437]  vfs_get_tree+0x92/0x2a0
[  303.400898][ T7437]  do_new_mount+0x341/0xd30
[  303.400915][ T7437]  ? apparmor_capable+0x126/0x170
[  303.400946][ T7437]  ? __pfx_do_new_mount+0x10/0x10
[  303.400965][ T7437]  ? ns_capable+0x89/0xe0
[  303.400990][ T7437]  ? user_path_at+0xd4/0x160
[  303.401014][ T7437]  ? user_path_at+0xd4/0x160
[  303.401037][ T7437]  __se_sys_mount+0x31d/0x420
[  303.401062][ T7437]  ? __pfx___se_sys_mount+0x10/0x10
[  303.401086][ T7437]  ? __x64_sys_mount+0x20/0xc0
[  303.401104][ T7437]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  303.401125][ T7437]  do_syscall_64+0x15f/0xf80
[  303.401156][ T7437]  ? trace_irq_disable+0x3b/0x140
[  303.401180][ T7437]  ? clear_bhb_loop+0x40/0x90
[  303.401202][ T7437]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  303.401220][ T7437] RIP: 0033:0x7fcd1d0cb5ca
[  303.401238][ T7437] 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
[  303.401253][ T7437] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  303.401273][ T7437] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  303.401286][ T7437] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  303.401299][ T7437] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  303.401311][ T7437] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  303.401323][ T7437] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
2026/05/01 04:09:40 executed programs: 213
[  303.401352][ T7437]  </TASK>
[  303.413275][ T7437] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  303.413295][ T7437] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  303.550188][ T7431] loop0: detected capacity change from 0 to 32768
[  303.621883][ T7431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  303.621909][ T7431] CPU: 1 UID: 0 PID: 7431 Comm: syz.0.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  303.621931][ T7431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  303.621941][ T7431] Call Trace:
[  303.621948][ T7431]  <TASK>
[  303.621955][ T7431]  dump_stack_lvl+0xe8/0x150
[  303.621982][ T7431]  sysfs_create_dir_ns+0x271/0x2a0
[  303.622001][ T7431]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  303.622023][ T7431]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  303.622045][ T7431]  ? rt_spin_unlock+0x160/0x200
[  303.622065][ T7431]  kobject_add_internal+0x631/0xd10
[  303.622092][ T7431]  kobject_init_and_add+0x12b/0x1a0
[  303.622119][ T7431]  ? __pfx_kobject_init_and_add+0x10/0x10
[  303.622139][ T7431]  ? __raw_spin_lock_init+0x45/0x100
[  303.622168][ T7431]  ? __init_swait_queue_head+0xa9/0x150
[  303.622196][ T7431]  gfs2_sys_fs_add+0x257/0x480
[  303.622215][ T7431]  ? is_dynamic_key+0x1ac/0x1c0
[  303.622241][ T7431]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  303.622268][ T7431]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  303.622307][ T7431]  gfs2_fill_super+0x141c/0x2220
[  303.622347][ T7431]  ? __pfx_gfs2_fill_super+0x10/0x10
[  303.622369][ T7431]  ? rt_spin_unlock+0x14f/0x200
[  303.622400][ T7431]  ? sb_set_blocksize+0x11b/0x210
[  303.622427][ T7431]  ? setup_bdev_super+0x4c1/0x5b0
[  303.622454][ T7431]  get_tree_bdev_flags+0x431/0x4f0
[  303.622476][ T7431]  ? __pfx_gfs2_fill_super+0x10/0x10
[  303.622500][ T7431]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  303.622519][ T7431]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  303.622549][ T7431]  gfs2_get_tree+0x51/0x1e0
[  303.622574][ T7431]  vfs_get_tree+0x92/0x2a0
[  303.622597][ T7431]  do_new_mount+0x341/0xd30
[  303.622613][ T7431]  ? apparmor_capable+0x126/0x170
[  303.622643][ T7431]  ? __pfx_do_new_mount+0x10/0x10
[  303.622659][ T7431]  ? ns_capable+0x89/0xe0
[  303.622681][ T7431]  ? user_path_at+0xd4/0x160
[  303.622702][ T7431]  ? user_path_at+0xd4/0x160
[  303.622724][ T7431]  __se_sys_mount+0x31d/0x420
[  303.622748][ T7431]  ? __pfx___se_sys_mount+0x10/0x10
[  303.622773][ T7431]  ? __x64_sys_mount+0x20/0xc0
[  303.622790][ T7431]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  303.622810][ T7431]  do_syscall_64+0x15f/0xf80
[  303.622833][ T7431]  ? trace_irq_disable+0x3b/0x140
[  303.622856][ T7431]  ? clear_bhb_loop+0x40/0x90
[  303.622878][ T7431]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  303.622896][ T7431] RIP: 0033:0x7fa65a4db5ca
[  303.622914][ T7431] 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
[  303.622930][ T7431] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  303.622950][ T7431] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  303.622963][ T7431] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  303.622975][ T7431] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  303.622987][ T7431] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  303.622999][ T7431] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  303.623028][ T7431]  </TASK>
[  303.644651][ T7431] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  303.644672][ T7431] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  304.782426][ T7441] loop2: detected capacity change from 0 to 32768
[  304.838121][ T7441] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  304.838144][ T7441] CPU: 0 UID: 0 PID: 7441 Comm: syz.2.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  304.838163][ T7441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  304.838173][ T7441] Call Trace:
[  304.838182][ T7441]  <TASK>
[  304.838190][ T7441]  dump_stack_lvl+0xe8/0x150
[  304.838219][ T7441]  sysfs_create_dir_ns+0x271/0x2a0
[  304.838239][ T7441]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  304.838262][ T7441]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  304.838283][ T7441]  ? rt_spin_unlock+0x160/0x200
[  304.838306][ T7441]  kobject_add_internal+0x631/0xd10
[  304.838330][ T7441]  kobject_init_and_add+0x12b/0x1a0
[  304.838354][ T7441]  ? __pfx_kobject_init_and_add+0x10/0x10
[  304.838373][ T7441]  ? __raw_spin_lock_init+0x45/0x100
[  304.838397][ T7441]  ? __init_swait_queue_head+0xa9/0x150
[  304.838424][ T7441]  gfs2_sys_fs_add+0x257/0x480
[  304.838444][ T7441]  ? is_dynamic_key+0x1ac/0x1c0
[  304.838470][ T7441]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  304.838498][ T7441]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  304.838536][ T7441]  gfs2_fill_super+0x141c/0x2220
[  304.838576][ T7441]  ? __pfx_gfs2_fill_super+0x10/0x10
[  304.838597][ T7441]  ? rt_spin_unlock+0x14f/0x200
[  304.838619][ T7441]  ? sb_set_blocksize+0x11b/0x210
[  304.838646][ T7441]  ? setup_bdev_super+0x4c1/0x5b0
[  304.838672][ T7441]  get_tree_bdev_flags+0x431/0x4f0
[  304.838695][ T7441]  ? __pfx_gfs2_fill_super+0x10/0x10
[  304.838717][ T7441]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  304.838737][ T7441]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  304.838767][ T7441]  gfs2_get_tree+0x51/0x1e0
[  304.838793][ T7441]  vfs_get_tree+0x92/0x2a0
[  304.838817][ T7441]  do_new_mount+0x341/0xd30
[  304.838834][ T7441]  ? apparmor_capable+0x126/0x170
[  304.838862][ T7441]  ? __pfx_do_new_mount+0x10/0x10
[  304.838879][ T7441]  ? ns_capable+0x89/0xe0
[  304.838903][ T7441]  ? user_path_at+0xd4/0x160
[  304.838926][ T7441]  ? user_path_at+0xd4/0x160
[  304.838946][ T7441]  __se_sys_mount+0x31d/0x420
[  304.838970][ T7441]  ? __pfx___se_sys_mount+0x10/0x10
[  304.839003][ T7441]  ? __x64_sys_mount+0x20/0xc0
[  304.839021][ T7441]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  304.839040][ T7441]  do_syscall_64+0x15f/0xf80
[  304.839063][ T7441]  ? trace_irq_disable+0x3b/0x140
[  304.839086][ T7441]  ? clear_bhb_loop+0x40/0x90
[  304.839106][ T7441]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  304.839124][ T7441] RIP: 0033:0x7fda0394b5ca
[  304.839142][ T7441] 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
[  304.839157][ T7441] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  304.839177][ T7441] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  304.839190][ T7441] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  304.839201][ T7441] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  304.839212][ T7441] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  304.839223][ T7441] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  304.839251][ T7441]  </TASK>
[  304.839278][ T7441] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  304.839291][ T7441] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.144492][ T7448] loop5: detected capacity change from 0 to 32768
[  306.166303][ T7448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.166326][ T7448] CPU: 1 UID: 0 PID: 7448 Comm: syz.5.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  306.166347][ T7448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  306.166358][ T7448] Call Trace:
[  306.166366][ T7448]  <TASK>
[  306.166374][ T7448]  dump_stack_lvl+0xe8/0x150
[  306.166404][ T7448]  sysfs_create_dir_ns+0x271/0x2a0
[  306.166424][ T7448]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  306.166447][ T7448]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  306.166469][ T7448]  ? rt_spin_unlock+0x160/0x200
[  306.166492][ T7448]  kobject_add_internal+0x631/0xd10
[  306.166519][ T7448]  kobject_init_and_add+0x12b/0x1a0
[  306.166547][ T7448]  ? __pfx_kobject_init_and_add+0x10/0x10
[  306.166568][ T7448]  ? __raw_spin_lock_init+0x45/0x100
[  306.166593][ T7448]  ? __init_swait_queue_head+0xa9/0x150
[  306.166621][ T7448]  gfs2_sys_fs_add+0x257/0x480
[  306.166641][ T7448]  ? is_dynamic_key+0x1ac/0x1c0
[  306.166667][ T7448]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  306.166696][ T7448]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  306.166735][ T7448]  gfs2_fill_super+0x141c/0x2220
[  306.166776][ T7448]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.166799][ T7448]  ? rt_spin_unlock+0x14f/0x200
[  306.166823][ T7448]  ? sb_set_blocksize+0x11b/0x210
[  306.166862][ T7448]  ? setup_bdev_super+0x4c1/0x5b0
[  306.166889][ T7448]  get_tree_bdev_flags+0x431/0x4f0
[  306.166912][ T7448]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.166936][ T7448]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  306.166957][ T7448]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  306.166989][ T7448]  gfs2_get_tree+0x51/0x1e0
[  306.167017][ T7448]  vfs_get_tree+0x92/0x2a0
[  306.167040][ T7448]  do_new_mount+0x341/0xd30
[  306.167056][ T7448]  ? apparmor_capable+0x126/0x170
[  306.167085][ T7448]  ? __pfx_do_new_mount+0x10/0x10
[  306.167102][ T7448]  ? ns_capable+0x89/0xe0
[  306.167125][ T7448]  ? user_path_at+0xd4/0x160
[  306.167155][ T7448]  ? user_path_at+0xd4/0x160
[  306.167175][ T7448]  __se_sys_mount+0x31d/0x420
[  306.167198][ T7448]  ? __pfx___se_sys_mount+0x10/0x10
[  306.167222][ T7448]  ? __x64_sys_mount+0x20/0xc0
[  306.167239][ T7448]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.167258][ T7448]  do_syscall_64+0x15f/0xf80
[  306.167278][ T7448]  ? trace_irq_disable+0x3b/0x140
[  306.167301][ T7448]  ? clear_bhb_loop+0x40/0x90
[  306.167322][ T7448]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.167337][ T7448] RIP: 0033:0x7fcd1d0cb5ca
[  306.167355][ T7448] 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
[  306.167370][ T7448] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.167390][ T7448] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  306.167403][ T7448] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  306.167414][ T7448] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  306.167426][ T7448] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  306.167437][ T7448] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  306.167467][ T7448]  </TASK>
[  306.181319][ T7448] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.181340][ T7448] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.478015][ T7449] loop0: detected capacity change from 0 to 32768
[  306.552667][ T7449] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.552690][ T7449] CPU: 1 UID: 0 PID: 7449 Comm: syz.0.221 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  306.552712][ T7449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  306.552722][ T7449] Call Trace:
[  306.552730][ T7449]  <TASK>
[  306.552739][ T7449]  dump_stack_lvl+0xe8/0x150
[  306.552769][ T7449]  sysfs_create_dir_ns+0x271/0x2a0
[  306.552790][ T7449]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  306.552813][ T7449]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  306.552843][ T7449]  ? rt_spin_unlock+0x160/0x200
[  306.552867][ T7449]  kobject_add_internal+0x631/0xd10
[  306.552894][ T7449]  kobject_init_and_add+0x12b/0x1a0
[  306.552927][ T7449]  ? __pfx_kobject_init_and_add+0x10/0x10
[  306.552947][ T7449]  ? __raw_spin_lock_init+0x45/0x100
[  306.552972][ T7449]  ? __init_swait_queue_head+0xa9/0x150
[  306.553000][ T7449]  gfs2_sys_fs_add+0x257/0x480
[  306.553020][ T7449]  ? is_dynamic_key+0x1ac/0x1c0
[  306.553045][ T7449]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  306.553074][ T7449]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  306.553112][ T7449]  gfs2_fill_super+0x141c/0x2220
[  306.553159][ T7449]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.553181][ T7449]  ? rt_spin_unlock+0x14f/0x200
[  306.553206][ T7449]  ? sb_set_blocksize+0x11b/0x210
[  306.553234][ T7449]  ? setup_bdev_super+0x4c1/0x5b0
[  306.553260][ T7449]  get_tree_bdev_flags+0x431/0x4f0
[  306.553283][ T7449]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.553307][ T7449]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  306.553328][ T7449]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  306.553369][ T7449]  gfs2_get_tree+0x51/0x1e0
[  306.553402][ T7449]  vfs_get_tree+0x92/0x2a0
[  306.553427][ T7449]  do_new_mount+0x341/0xd30
[  306.553444][ T7449]  ? apparmor_capable+0x126/0x170
[  306.553476][ T7449]  ? __pfx_do_new_mount+0x10/0x10
[  306.553494][ T7449]  ? ns_capable+0x89/0xe0
[  306.553519][ T7449]  ? user_path_at+0xd4/0x160
[  306.553543][ T7449]  ? user_path_at+0xd4/0x160
[  306.553566][ T7449]  __se_sys_mount+0x31d/0x420
[  306.553590][ T7449]  ? __pfx___se_sys_mount+0x10/0x10
[  306.553614][ T7449]  ? __x64_sys_mount+0x20/0xc0
[  306.553632][ T7449]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.553652][ T7449]  do_syscall_64+0x15f/0xf80
[  306.553676][ T7449]  ? trace_irq_disable+0x3b/0x140
[  306.553698][ T7449]  ? clear_bhb_loop+0x40/0x90
[  306.553721][ T7449]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.553739][ T7449] RIP: 0033:0x7fa65a4db5ca
[  306.553757][ T7449] 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
[  306.553772][ T7449] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.553792][ T7449] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  306.553805][ T7449] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  306.553819][ T7449] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  306.553830][ T7449] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  306.553847][ T7449] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  306.553876][ T7449]  </TASK>
[  306.553903][ T7449] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.553917][ T7449] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.749689][ T7455] loop4: detected capacity change from 0 to 32768
[  306.792372][ T7455] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.792395][ T7455] CPU: 1 UID: 0 PID: 7455 Comm: syz.4.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  306.792416][ T7455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  306.792426][ T7455] Call Trace:
[  306.792433][ T7455]  <TASK>
[  306.792441][ T7455]  dump_stack_lvl+0xe8/0x150
[  306.792470][ T7455]  sysfs_create_dir_ns+0x271/0x2a0
[  306.792489][ T7455]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  306.792512][ T7455]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  306.792533][ T7455]  ? rt_spin_unlock+0x160/0x200
[  306.792555][ T7455]  kobject_add_internal+0x631/0xd10
[  306.792581][ T7455]  kobject_init_and_add+0x12b/0x1a0
[  306.792603][ T7455]  ? __pfx_kobject_init_and_add+0x10/0x10
[  306.792622][ T7455]  ? __raw_spin_lock_init+0x45/0x100
[  306.792646][ T7455]  ? __init_swait_queue_head+0xa9/0x150
[  306.792672][ T7455]  gfs2_sys_fs_add+0x257/0x480
[  306.792691][ T7455]  ? is_dynamic_key+0x1ac/0x1c0
[  306.792714][ T7455]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  306.792741][ T7455]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  306.792778][ T7455]  gfs2_fill_super+0x141c/0x2220
[  306.792816][ T7455]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.792837][ T7455]  ? rt_spin_unlock+0x14f/0x200
[  306.792860][ T7455]  ? sb_set_blocksize+0x11b/0x210
[  306.792892][ T7455]  ? setup_bdev_super+0x4c1/0x5b0
[  306.792917][ T7455]  get_tree_bdev_flags+0x431/0x4f0
[  306.792939][ T7455]  ? __pfx_gfs2_fill_super+0x10/0x10
[  306.792961][ T7455]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  306.792981][ T7455]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  306.793012][ T7455]  gfs2_get_tree+0x51/0x1e0
[  306.793037][ T7455]  vfs_get_tree+0x92/0x2a0
[  306.793061][ T7455]  do_new_mount+0x341/0xd30
[  306.793076][ T7455]  ? apparmor_capable+0x126/0x170
[  306.793106][ T7455]  ? __pfx_do_new_mount+0x10/0x10
[  306.793123][ T7455]  ? ns_capable+0x89/0xe0
[  306.793147][ T7455]  ? user_path_at+0xd4/0x160
[  306.793170][ T7455]  ? user_path_at+0xd4/0x160
[  306.793191][ T7455]  __se_sys_mount+0x31d/0x420
[  306.793214][ T7455]  ? __pfx___se_sys_mount+0x10/0x10
[  306.793238][ T7455]  ? __x64_sys_mount+0x20/0xc0
[  306.793255][ T7455]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.793274][ T7455]  do_syscall_64+0x15f/0xf80
[  306.793295][ T7455]  ? trace_irq_disable+0x3b/0x140
[  306.793317][ T7455]  ? clear_bhb_loop+0x40/0x90
[  306.793338][ T7455]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  306.793356][ T7455] RIP: 0033:0x7f9375c8b5ca
[  306.793374][ T7455] 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
[  306.793388][ T7455] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.793406][ T7455] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  306.793418][ T7455] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  306.793430][ T7455] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  306.793441][ T7455] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  306.793453][ T7455] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  306.793481][ T7455]  </TASK>
[  306.793506][ T7455] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.793520][ T7455] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  307.025511][ T7451] loop1: detected capacity change from 0 to 32768
[  307.158289][ T7451] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  307.158311][ T7451] CPU: 1 UID: 0 PID: 7451 Comm: syz.1.222 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  307.158332][ T7451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  307.158343][ T7451] Call Trace:
[  307.158350][ T7451]  <TASK>
[  307.158357][ T7451]  dump_stack_lvl+0xe8/0x150
[  307.158386][ T7451]  sysfs_create_dir_ns+0x271/0x2a0
[  307.158405][ T7451]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  307.158428][ T7451]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  307.158448][ T7451]  ? rt_spin_unlock+0x160/0x200
[  307.158471][ T7451]  kobject_add_internal+0x631/0xd10
[  307.158496][ T7451]  kobject_init_and_add+0x12b/0x1a0
[  307.158520][ T7451]  ? __pfx_kobject_init_and_add+0x10/0x10
[  307.158540][ T7451]  ? __raw_spin_lock_init+0x45/0x100
[  307.158563][ T7451]  ? __init_swait_queue_head+0xa9/0x150
[  307.158589][ T7451]  gfs2_sys_fs_add+0x257/0x480
[  307.158609][ T7451]  ? is_dynamic_key+0x1ac/0x1c0
[  307.158634][ T7451]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  307.158661][ T7451]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  307.158697][ T7451]  gfs2_fill_super+0x141c/0x2220
[  307.158734][ T7451]  ? __pfx_gfs2_fill_super+0x10/0x10
[  307.158755][ T7451]  ? rt_spin_unlock+0x14f/0x200
[  307.158778][ T7451]  ? sb_set_blocksize+0x11b/0x210
[  307.158803][ T7451]  ? setup_bdev_super+0x4c1/0x5b0
[  307.158828][ T7451]  get_tree_bdev_flags+0x431/0x4f0
[  307.158857][ T7451]  ? __pfx_gfs2_fill_super+0x10/0x10
[  307.158880][ T7451]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  307.158899][ T7451]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  307.158929][ T7451]  gfs2_get_tree+0x51/0x1e0
[  307.158956][ T7451]  vfs_get_tree+0x92/0x2a0
[  307.158980][ T7451]  do_new_mount+0x341/0xd30
[  307.158996][ T7451]  ? apparmor_capable+0x126/0x170
[  307.159025][ T7451]  ? __pfx_do_new_mount+0x10/0x10
[  307.159043][ T7451]  ? ns_capable+0x89/0xe0
[  307.159066][ T7451]  ? user_path_at+0xd4/0x160
[  307.159090][ T7451]  ? user_path_at+0xd4/0x160
[  307.159111][ T7451]  __se_sys_mount+0x31d/0x420
[  307.159134][ T7451]  ? __pfx___se_sys_mount+0x10/0x10
[  307.159158][ T7451]  ? __x64_sys_mount+0x20/0xc0
[  307.159175][ T7451]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  307.159195][ T7451]  do_syscall_64+0x15f/0xf80
[  307.159216][ T7451]  ? trace_irq_disable+0x3b/0x140
[  307.159238][ T7451]  ? clear_bhb_loop+0x40/0x90
[  307.159259][ T7451]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  307.159276][ T7451] RIP: 0033:0x7fa3dbb3b5ca
[  307.159293][ T7451] 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
[  307.159309][ T7451] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  307.159327][ T7451] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  307.159339][ T7451] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  307.159352][ T7451] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  307.159363][ T7451] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  307.159375][ T7451] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  307.159403][ T7451]  </TASK>
[  307.159510][ T7451] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  307.159524][ T7451] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  308.287494][ T7457] loop2: detected capacity change from 0 to 32768
[  308.309540][ T7457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  308.309563][ T7457] CPU: 1 UID: 0 PID: 7457 Comm: syz.2.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  308.309583][ T7457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  308.309594][ T7457] Call Trace:
[  308.309601][ T7457]  <TASK>
[  308.309610][ T7457]  dump_stack_lvl+0xe8/0x150
[  308.309640][ T7457]  sysfs_create_dir_ns+0x271/0x2a0
[  308.309660][ T7457]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  308.309711][ T7457]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  308.309734][ T7457]  ? rt_spin_unlock+0x160/0x200
[  308.309754][ T7457]  kobject_add_internal+0x631/0xd10
[  308.309781][ T7457]  kobject_init_and_add+0x12b/0x1a0
[  308.309805][ T7457]  ? __pfx_kobject_init_and_add+0x10/0x10
[  308.309825][ T7457]  ? __raw_spin_lock_init+0x45/0x100
[  308.309850][ T7457]  ? __init_swait_queue_head+0xa9/0x150
[  308.309877][ T7457]  gfs2_sys_fs_add+0x257/0x480
[  308.309897][ T7457]  ? is_dynamic_key+0x1ac/0x1c0
[  308.309921][ T7457]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  308.309949][ T7457]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  308.309988][ T7457]  gfs2_fill_super+0x141c/0x2220
[  308.310027][ T7457]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.310050][ T7457]  ? rt_spin_unlock+0x14f/0x200
[  308.310075][ T7457]  ? sb_set_blocksize+0x11b/0x210
[  308.310102][ T7457]  ? setup_bdev_super+0x4c1/0x5b0
[  308.310127][ T7457]  get_tree_bdev_flags+0x431/0x4f0
[  308.310150][ T7457]  ? __pfx_gfs2_fill_super+0x10/0x10
[  308.310174][ T7457]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  308.310194][ T7457]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  308.310226][ T7457]  gfs2_get_tree+0x51/0x1e0
[  308.310253][ T7457]  vfs_get_tree+0x92/0x2a0
[  308.310278][ T7457]  do_new_mount+0x341/0xd30
[  308.310294][ T7457]  ? apparmor_capable+0x126/0x170
[  308.310329][ T7457]  ? __pfx_do_new_mount+0x10/0x10
[  308.310347][ T7457]  ? ns_capable+0x89/0xe0
[  308.310372][ T7457]  ? user_path_at+0xd4/0x160
[  308.310396][ T7457]  ? user_path_at+0xd4/0x160
[  308.310416][ T7457]  __se_sys_mount+0x31d/0x420
[  308.310438][ T7457]  ? __pfx___se_sys_mount+0x10/0x10
[  308.310461][ T7457]  ? __x64_sys_mount+0x20/0xc0
[  308.310477][ T7457]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.310496][ T7457]  do_syscall_64+0x15f/0xf80
[  308.310519][ T7457]  ? trace_irq_disable+0x3b/0x140
[  308.310541][ T7457]  ? clear_bhb_loop+0x40/0x90
[  308.310563][ T7457]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  308.310581][ T7457] RIP: 0033:0x7fda0394b5ca
[  308.310602][ T7457] 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
[  308.310617][ T7457] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  308.310637][ T7457] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  308.310650][ T7457] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  308.310661][ T7457] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  308.310671][ T7457] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  308.310688][ T7457] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  308.310715][ T7457]  </TASK>
[  308.329465][ T7457] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  308.329485][ T7457] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  309.383750][ T7474] loop0: detected capacity change from 0 to 32768
[  309.449352][ T7474] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  309.449374][ T7474] CPU: 1 UID: 0 PID: 7474 Comm: syz.0.226 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  309.449394][ T7474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  309.449405][ T7474] Call Trace:
[  309.449413][ T7474]  <TASK>
[  309.449421][ T7474]  dump_stack_lvl+0xe8/0x150
[  309.449449][ T7474]  sysfs_create_dir_ns+0x271/0x2a0
[  309.449469][ T7474]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  309.449490][ T7474]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  309.449512][ T7474]  ? rt_spin_unlock+0x160/0x200
[  309.449533][ T7474]  kobject_add_internal+0x631/0xd10
[  309.449559][ T7474]  kobject_init_and_add+0x12b/0x1a0
[  309.449604][ T7474]  ? __pfx_kobject_init_and_add+0x10/0x10
[  309.449623][ T7474]  ? __raw_spin_lock_init+0x45/0x100
[  309.449645][ T7474]  ? __init_swait_queue_head+0xa9/0x150
[  309.449672][ T7474]  gfs2_sys_fs_add+0x257/0x480
[  309.449691][ T7474]  ? is_dynamic_key+0x1ac/0x1c0
[  309.449715][ T7474]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  309.449742][ T7474]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  309.449779][ T7474]  gfs2_fill_super+0x141c/0x2220
[  309.449816][ T7474]  ? __pfx_gfs2_fill_super+0x10/0x10
[  309.449837][ T7474]  ? rt_spin_unlock+0x14f/0x200
[  309.449868][ T7474]  ? sb_set_blocksize+0x11b/0x210
[  309.449895][ T7474]  ? setup_bdev_super+0x4c1/0x5b0
[  309.449922][ T7474]  get_tree_bdev_flags+0x431/0x4f0
[  309.449945][ T7474]  ? __pfx_gfs2_fill_super+0x10/0x10
[  309.449968][ T7474]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  309.449986][ T7474]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  309.450018][ T7474]  gfs2_get_tree+0x51/0x1e0
[  309.450043][ T7474]  vfs_get_tree+0x92/0x2a0
[  309.450064][ T7474]  do_new_mount+0x341/0xd30
[  309.450079][ T7474]  ? apparmor_capable+0x126/0x170
[  309.450108][ T7474]  ? __pfx_do_new_mount+0x10/0x10
[  309.450123][ T7474]  ? ns_capable+0x89/0xe0
[  309.450146][ T7474]  ? user_path_at+0xd4/0x160
[  309.450169][ T7474]  ? user_path_at+0xd4/0x160
[  309.450188][ T7474]  __se_sys_mount+0x31d/0x420
[  309.450208][ T7474]  ? __pfx___se_sys_mount+0x10/0x10
[  309.450233][ T7474]  ? __x64_sys_mount+0x20/0xc0
[  309.450248][ T7474]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  309.450266][ T7474]  do_syscall_64+0x15f/0xf80
[  309.450288][ T7474]  ? trace_irq_disable+0x3b/0x140
[  309.450310][ T7474]  ? clear_bhb_loop+0x40/0x90
[  309.450332][ T7474]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  309.450349][ T7474] RIP: 0033:0x7fa65a4db5ca
[  309.450366][ T7474] 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
[  309.450381][ T7474] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  309.450400][ T7474] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  309.450413][ T7474] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  309.450425][ T7474] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
2026/05/01 04:09:46 executed programs: 223
[  309.450438][ T7474] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  309.450449][ T7474] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  309.450479][ T7474]  </TASK>
[  309.450505][ T7474] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  309.450519][ T7474] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  310.149688][ T7476] loop4: detected capacity change from 0 to 32768
[  310.173187][ T7476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  310.173209][ T7476] CPU: 0 UID: 0 PID: 7476 Comm: syz.4.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  310.173230][ T7476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  310.173241][ T7476] Call Trace:
[  310.173249][ T7476]  <TASK>
[  310.173257][ T7476]  dump_stack_lvl+0xe8/0x150
[  310.173285][ T7476]  sysfs_create_dir_ns+0x271/0x2a0
[  310.173305][ T7476]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  310.173328][ T7476]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  310.173351][ T7476]  ? rt_spin_unlock+0x160/0x200
[  310.173374][ T7476]  kobject_add_internal+0x631/0xd10
[  310.173400][ T7476]  kobject_init_and_add+0x12b/0x1a0
[  310.173425][ T7476]  ? __pfx_kobject_init_and_add+0x10/0x10
[  310.173445][ T7476]  ? __raw_spin_lock_init+0x45/0x100
[  310.173470][ T7476]  ? __init_swait_queue_head+0xa9/0x150
[  310.173496][ T7476]  gfs2_sys_fs_add+0x257/0x480
[  310.173516][ T7476]  ? is_dynamic_key+0x1ac/0x1c0
[  310.173541][ T7476]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  310.173584][ T7476]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  310.173623][ T7476]  gfs2_fill_super+0x141c/0x2220
[  310.173663][ T7476]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.173686][ T7476]  ? rt_spin_unlock+0x14f/0x200
[  310.173710][ T7476]  ? sb_set_blocksize+0x11b/0x210
[  310.173739][ T7476]  ? setup_bdev_super+0x4c1/0x5b0
[  310.173765][ T7476]  get_tree_bdev_flags+0x431/0x4f0
[  310.173788][ T7476]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.173811][ T7476]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  310.173835][ T7476]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  310.173866][ T7476]  gfs2_get_tree+0x51/0x1e0
[  310.173894][ T7476]  vfs_get_tree+0x92/0x2a0
[  310.173918][ T7476]  do_new_mount+0x341/0xd30
[  310.173936][ T7476]  ? apparmor_capable+0x126/0x170
[  310.173967][ T7476]  ? __pfx_do_new_mount+0x10/0x10
[  310.173985][ T7476]  ? ns_capable+0x89/0xe0
[  310.174011][ T7476]  ? user_path_at+0xd4/0x160
[  310.174035][ T7476]  ? user_path_at+0xd4/0x160
[  310.174057][ T7476]  __se_sys_mount+0x31d/0x420
[  310.174082][ T7476]  ? __pfx___se_sys_mount+0x10/0x10
[  310.174107][ T7476]  ? __x64_sys_mount+0x20/0xc0
[  310.174125][ T7476]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.174144][ T7476]  do_syscall_64+0x15f/0xf80
[  310.174167][ T7476]  ? trace_irq_disable+0x3b/0x140
[  310.174190][ T7476]  ? clear_bhb_loop+0x40/0x90
[  310.174212][ T7476]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.174230][ T7476] RIP: 0033:0x7f9375c8b5ca
[  310.174248][ T7476] 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
[  310.174263][ T7476] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  310.174283][ T7476] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  310.174296][ T7476] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  310.174307][ T7476] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  310.174320][ T7476] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  310.174332][ T7476] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  310.174360][ T7476]  </TASK>
[  310.178143][ T7476] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  310.178162][ T7476] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  310.579240][ T7479] loop1: detected capacity change from 0 to 32768
[  310.676493][ T7479] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  310.676517][ T7479] CPU: 0 UID: 0 PID: 7479 Comm: syz.1.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  310.676537][ T7479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  310.676548][ T7479] Call Trace:
[  310.676556][ T7479]  <TASK>
[  310.676564][ T7479]  dump_stack_lvl+0xe8/0x150
[  310.676590][ T7479]  sysfs_create_dir_ns+0x271/0x2a0
[  310.676608][ T7479]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  310.676630][ T7479]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  310.676653][ T7479]  ? rt_spin_unlock+0x160/0x200
[  310.676675][ T7479]  kobject_add_internal+0x631/0xd10
[  310.676699][ T7479]  kobject_init_and_add+0x12b/0x1a0
[  310.676721][ T7479]  ? __pfx_kobject_init_and_add+0x10/0x10
[  310.676746][ T7479]  ? __raw_spin_lock_init+0x45/0x100
[  310.676770][ T7479]  ? __init_swait_queue_head+0xa9/0x150
[  310.676795][ T7479]  gfs2_sys_fs_add+0x257/0x480
[  310.676813][ T7479]  ? is_dynamic_key+0x1ac/0x1c0
[  310.676837][ T7479]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  310.676865][ T7479]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  310.676902][ T7479]  gfs2_fill_super+0x141c/0x2220
[  310.676942][ T7479]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.676964][ T7479]  ? rt_spin_unlock+0x14f/0x200
[  310.676988][ T7479]  ? sb_set_blocksize+0x11b/0x210
[  310.677014][ T7479]  ? setup_bdev_super+0x4c1/0x5b0
[  310.677039][ T7479]  get_tree_bdev_flags+0x431/0x4f0
[  310.677060][ T7479]  ? __pfx_gfs2_fill_super+0x10/0x10
[  310.677083][ T7479]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  310.677102][ T7479]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  310.677134][ T7479]  gfs2_get_tree+0x51/0x1e0
[  310.677160][ T7479]  vfs_get_tree+0x92/0x2a0
[  310.677184][ T7479]  do_new_mount+0x341/0xd30
[  310.677201][ T7479]  ? apparmor_capable+0x126/0x170
[  310.677232][ T7479]  ? __pfx_do_new_mount+0x10/0x10
[  310.677250][ T7479]  ? ns_capable+0x89/0xe0
[  310.677275][ T7479]  ? user_path_at+0xd4/0x160
[  310.677300][ T7479]  ? user_path_at+0xd4/0x160
[  310.677322][ T7479]  __se_sys_mount+0x31d/0x420
[  310.677347][ T7479]  ? __pfx___se_sys_mount+0x10/0x10
[  310.677372][ T7479]  ? __x64_sys_mount+0x20/0xc0
[  310.677389][ T7479]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.677409][ T7479]  do_syscall_64+0x15f/0xf80
[  310.677432][ T7479]  ? trace_irq_disable+0x3b/0x140
[  310.677455][ T7479]  ? clear_bhb_loop+0x40/0x90
[  310.677477][ T7479]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  310.677495][ T7479] RIP: 0033:0x7fa3dbb3b5ca
[  310.677513][ T7479] 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
[  310.677528][ T7479] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  310.677547][ T7479] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  310.677560][ T7479] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  310.677572][ T7479] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  310.677584][ T7479] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  310.677596][ T7479] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  310.677626][ T7479]  </TASK>
[  310.677664][ T7479] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  310.677679][ T7479] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  311.509876][ T7483] loop2: detected capacity change from 0 to 32768
[  311.538540][ T7483] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  311.538563][ T7483] CPU: 1 UID: 0 PID: 7483 Comm: syz.2.229 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  311.538583][ T7483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  311.538592][ T7483] Call Trace:
[  311.538599][ T7483]  <TASK>
[  311.538606][ T7483]  dump_stack_lvl+0xe8/0x150
[  311.538634][ T7483]  sysfs_create_dir_ns+0x271/0x2a0
[  311.538653][ T7483]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  311.538686][ T7483]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  311.538707][ T7483]  ? rt_spin_unlock+0x160/0x200
[  311.538727][ T7483]  kobject_add_internal+0x631/0xd10
[  311.538753][ T7483]  kobject_init_and_add+0x12b/0x1a0
[  311.538777][ T7483]  ? __pfx_kobject_init_and_add+0x10/0x10
[  311.538797][ T7483]  ? __raw_spin_lock_init+0x45/0x100
[  311.538822][ T7483]  ? __init_swait_queue_head+0xa9/0x150
[  311.538849][ T7483]  gfs2_sys_fs_add+0x257/0x480
[  311.538869][ T7483]  ? is_dynamic_key+0x1ac/0x1c0
[  311.538895][ T7483]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  311.538924][ T7483]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  311.538962][ T7483]  gfs2_fill_super+0x141c/0x2220
[  311.539002][ T7483]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.539024][ T7483]  ? rt_spin_unlock+0x14f/0x200
[  311.539049][ T7483]  ? sb_set_blocksize+0x11b/0x210
[  311.539076][ T7483]  ? setup_bdev_super+0x4c1/0x5b0
[  311.539102][ T7483]  get_tree_bdev_flags+0x431/0x4f0
[  311.539126][ T7483]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.539149][ T7483]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  311.539169][ T7483]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  311.539202][ T7483]  gfs2_get_tree+0x51/0x1e0
[  311.539229][ T7483]  vfs_get_tree+0x92/0x2a0
[  311.539252][ T7483]  do_new_mount+0x341/0xd30
[  311.539269][ T7483]  ? apparmor_capable+0x126/0x170
[  311.539299][ T7483]  ? __pfx_do_new_mount+0x10/0x10
[  311.539317][ T7483]  ? ns_capable+0x89/0xe0
[  311.539342][ T7483]  ? user_path_at+0xd4/0x160
[  311.539366][ T7483]  ? user_path_at+0xd4/0x160
[  311.539388][ T7483]  __se_sys_mount+0x31d/0x420
[  311.539411][ T7483]  ? __pfx___se_sys_mount+0x10/0x10
[  311.539436][ T7483]  ? __x64_sys_mount+0x20/0xc0
[  311.539454][ T7483]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.539474][ T7483]  do_syscall_64+0x15f/0xf80
[  311.539498][ T7483]  ? trace_irq_disable+0x3b/0x140
[  311.539521][ T7483]  ? clear_bhb_loop+0x40/0x90
[  311.539542][ T7483]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.539560][ T7483] RIP: 0033:0x7fda0394b5ca
[  311.539579][ T7483] 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
[  311.539595][ T7483] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  311.539615][ T7483] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  311.539628][ T7483] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  311.539640][ T7483] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  311.539653][ T7483] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  311.539672][ T7483] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  311.539710][ T7483]  </TASK>
[  311.539736][ T7483] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  311.539757][ T7483] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  311.942172][ T7487] loop0: detected capacity change from 0 to 32768
[  311.960418][ T7487] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  311.960440][ T7487] CPU: 0 UID: 0 PID: 7487 Comm: syz.0.230 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  311.960460][ T7487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  311.960472][ T7487] Call Trace:
[  311.960479][ T7487]  <TASK>
[  311.960487][ T7487]  dump_stack_lvl+0xe8/0x150
[  311.960516][ T7487]  sysfs_create_dir_ns+0x271/0x2a0
[  311.960537][ T7487]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  311.960560][ T7487]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  311.960582][ T7487]  ? rt_spin_unlock+0x160/0x200
[  311.960605][ T7487]  kobject_add_internal+0x631/0xd10
[  311.960638][ T7487]  kobject_init_and_add+0x12b/0x1a0
[  311.960663][ T7487]  ? __pfx_kobject_init_and_add+0x10/0x10
[  311.960682][ T7487]  ? __raw_spin_lock_init+0x45/0x100
[  311.960705][ T7487]  ? __init_swait_queue_head+0xa9/0x150
[  311.960731][ T7487]  gfs2_sys_fs_add+0x257/0x480
[  311.960751][ T7487]  ? is_dynamic_key+0x1ac/0x1c0
[  311.960776][ T7487]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  311.960804][ T7487]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  311.960841][ T7487]  gfs2_fill_super+0x141c/0x2220
[  311.960877][ T7487]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.960899][ T7487]  ? rt_spin_unlock+0x14f/0x200
[  311.960923][ T7487]  ? sb_set_blocksize+0x11b/0x210
[  311.960949][ T7487]  ? setup_bdev_super+0x4c1/0x5b0
[  311.960976][ T7487]  get_tree_bdev_flags+0x431/0x4f0
[  311.960998][ T7487]  ? __pfx_gfs2_fill_super+0x10/0x10
[  311.961021][ T7487]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  311.961040][ T7487]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  311.961073][ T7487]  gfs2_get_tree+0x51/0x1e0
[  311.961100][ T7487]  vfs_get_tree+0x92/0x2a0
[  311.961125][ T7487]  do_new_mount+0x341/0xd30
[  311.961142][ T7487]  ? apparmor_capable+0x126/0x170
[  311.961173][ T7487]  ? __pfx_do_new_mount+0x10/0x10
[  311.961191][ T7487]  ? ns_capable+0x89/0xe0
[  311.961214][ T7487]  ? user_path_at+0xd4/0x160
[  311.961235][ T7487]  ? user_path_at+0xd4/0x160
[  311.961255][ T7487]  __se_sys_mount+0x31d/0x420
[  311.961278][ T7487]  ? __pfx___se_sys_mount+0x10/0x10
[  311.961302][ T7487]  ? __x64_sys_mount+0x20/0xc0
[  311.961319][ T7487]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.961336][ T7487]  do_syscall_64+0x15f/0xf80
[  311.961358][ T7487]  ? trace_irq_disable+0x3b/0x140
[  311.961380][ T7487]  ? clear_bhb_loop+0x40/0x90
[  311.961403][ T7487]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  311.961420][ T7487] RIP: 0033:0x7fa65a4db5ca
[  311.961438][ T7487] 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
[  311.961454][ T7487] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  311.961473][ T7487] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  311.961486][ T7487] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  311.961498][ T7487] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  311.961508][ T7487] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  311.961516][ T7487] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  311.961537][ T7487]  </TASK>
[  311.990726][ T7487] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  312.004576][ T7487] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  312.811550][ T7491] loop5: detected capacity change from 0 to 32768
[  312.876030][ T7491] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  312.876053][ T7491] CPU: 1 UID: 0 PID: 7491 Comm: syz.5.232 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  312.876075][ T7491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  312.876086][ T7491] Call Trace:
[  312.876094][ T7491]  <TASK>
[  312.876102][ T7491]  dump_stack_lvl+0xe8/0x150
[  312.876131][ T7491]  sysfs_create_dir_ns+0x271/0x2a0
[  312.876152][ T7491]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  312.876175][ T7491]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  312.876198][ T7491]  ? rt_spin_unlock+0x160/0x200
[  312.876221][ T7491]  kobject_add_internal+0x631/0xd10
[  312.876245][ T7491]  kobject_init_and_add+0x12b/0x1a0
[  312.876269][ T7491]  ? __pfx_kobject_init_and_add+0x10/0x10
[  312.876288][ T7491]  ? __raw_spin_lock_init+0x45/0x100
[  312.876313][ T7491]  ? __init_swait_queue_head+0xa9/0x150
[  312.876340][ T7491]  gfs2_sys_fs_add+0x257/0x480
[  312.876361][ T7491]  ? is_dynamic_key+0x1ac/0x1c0
[  312.876386][ T7491]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  312.876415][ T7491]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  312.876454][ T7491]  gfs2_fill_super+0x141c/0x2220
[  312.876495][ T7491]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.876517][ T7491]  ? rt_spin_unlock+0x14f/0x200
[  312.876549][ T7491]  ? sb_set_blocksize+0x11b/0x210
[  312.876577][ T7491]  ? setup_bdev_super+0x4c1/0x5b0
[  312.876603][ T7491]  get_tree_bdev_flags+0x431/0x4f0
[  312.876626][ T7491]  ? __pfx_gfs2_fill_super+0x10/0x10
[  312.876651][ T7491]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  312.876671][ T7491]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  312.876703][ T7491]  gfs2_get_tree+0x51/0x1e0
[  312.876730][ T7491]  vfs_get_tree+0x92/0x2a0
[  312.876755][ T7491]  do_new_mount+0x341/0xd30
[  312.876770][ T7491]  ? apparmor_capable+0x126/0x170
[  312.876802][ T7491]  ? __pfx_do_new_mount+0x10/0x10
[  312.876820][ T7491]  ? ns_capable+0x89/0xe0
[  312.876846][ T7491]  ? user_path_at+0xd4/0x160
[  312.876870][ T7491]  ? user_path_at+0xd4/0x160
[  312.876892][ T7491]  __se_sys_mount+0x31d/0x420
[  312.876917][ T7491]  ? __pfx___se_sys_mount+0x10/0x10
[  312.876942][ T7491]  ? __x64_sys_mount+0x20/0xc0
[  312.876960][ T7491]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.876980][ T7491]  do_syscall_64+0x15f/0xf80
[  312.877003][ T7491]  ? trace_irq_disable+0x3b/0x140
[  312.877027][ T7491]  ? clear_bhb_loop+0x40/0x90
[  312.877049][ T7491]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  312.877067][ T7491] RIP: 0033:0x7fcd1d0cb5ca
[  312.877085][ T7491] 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
[  312.877101][ T7491] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  312.877121][ T7491] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  312.877135][ T7491] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  312.877148][ T7491] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  312.877160][ T7491] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  312.877172][ T7491] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  312.877201][ T7491]  </TASK>
[  312.877226][ T7491] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  312.877241][ T7491] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  313.410060][ T7497] loop1: detected capacity change from 0 to 32768
[  313.472269][ T7497] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  313.472292][ T7497] CPU: 1 UID: 0 PID: 7497 Comm: syz.1.233 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  313.472314][ T7497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  313.472325][ T7497] Call Trace:
[  313.472332][ T7497]  <TASK>
[  313.472340][ T7497]  dump_stack_lvl+0xe8/0x150
[  313.472370][ T7497]  sysfs_create_dir_ns+0x271/0x2a0
[  313.472390][ T7497]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  313.472412][ T7497]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  313.472435][ T7497]  ? rt_spin_unlock+0x160/0x200
[  313.472458][ T7497]  kobject_add_internal+0x631/0xd10
[  313.472483][ T7497]  kobject_init_and_add+0x12b/0x1a0
[  313.472513][ T7497]  ? __pfx_kobject_init_and_add+0x10/0x10
[  313.472533][ T7497]  ? __raw_spin_lock_init+0x45/0x100
[  313.472557][ T7497]  ? __init_swait_queue_head+0xa9/0x150
[  313.472584][ T7497]  gfs2_sys_fs_add+0x257/0x480
[  313.472604][ T7497]  ? is_dynamic_key+0x1ac/0x1c0
[  313.472630][ T7497]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  313.472658][ T7497]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  313.472697][ T7497]  gfs2_fill_super+0x141c/0x2220
[  313.472736][ T7497]  ? __pfx_gfs2_fill_super+0x10/0x10
[  313.472758][ T7497]  ? rt_spin_unlock+0x14f/0x200
[  313.472782][ T7497]  ? sb_set_blocksize+0x11b/0x210
[  313.472809][ T7497]  ? setup_bdev_super+0x4c1/0x5b0
[  313.472835][ T7497]  get_tree_bdev_flags+0x431/0x4f0
[  313.472858][ T7497]  ? __pfx_gfs2_fill_super+0x10/0x10
[  313.472881][ T7497]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  313.472902][ T7497]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  313.472934][ T7497]  gfs2_get_tree+0x51/0x1e0
[  313.472961][ T7497]  vfs_get_tree+0x92/0x2a0
[  313.472984][ T7497]  do_new_mount+0x341/0xd30
[  313.472999][ T7497]  ? apparmor_capable+0x126/0x170
[  313.473027][ T7497]  ? __pfx_do_new_mount+0x10/0x10
[  313.473044][ T7497]  ? ns_capable+0x89/0xe0
[  313.473066][ T7497]  ? user_path_at+0xd4/0x160
[  313.473089][ T7497]  ? user_path_at+0xd4/0x160
[  313.473108][ T7497]  __se_sys_mount+0x31d/0x420
[  313.473131][ T7497]  ? __pfx___se_sys_mount+0x10/0x10
[  313.473154][ T7497]  ? __x64_sys_mount+0x20/0xc0
[  313.473169][ T7497]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  313.473189][ T7497]  do_syscall_64+0x15f/0xf80
[  313.473221][ T7497]  ? trace_irq_disable+0x3b/0x140
[  313.473314][ T7497]  ? clear_bhb_loop+0x40/0x90
[  313.473347][ T7497]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  313.473365][ T7497] RIP: 0033:0x7fa3dbb3b5ca
[  313.473383][ T7497] 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
[  313.473398][ T7497] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  313.473417][ T7497] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  313.473430][ T7497] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  313.473443][ T7497] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  313.473455][ T7497] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  313.473465][ T7497] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  313.473494][ T7497]  </TASK>
[  313.473525][ T7497] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  313.473540][ T7497] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  313.651514][ T7493] loop4: detected capacity change from 0 to 32768
[  313.673604][ T7493] workqueue: Failed to create a rescuer kthread for wq "gfs2-glock/syz:syz": -EINTR
[  314.624414][ T7503] loop2: detected capacity change from 0 to 32768
[  314.636692][ T7503] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  314.636716][ T7503] CPU: 0 UID: 0 PID: 7503 Comm: syz.2.234 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  314.636737][ T7503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  314.636748][ T7503] Call Trace:
[  314.636755][ T7503]  <TASK>
[  314.636763][ T7503]  dump_stack_lvl+0xe8/0x150
[  314.636790][ T7503]  sysfs_create_dir_ns+0x271/0x2a0
[  314.636811][ T7503]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  314.636833][ T7503]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  314.636855][ T7503]  ? rt_spin_unlock+0x160/0x200
[  314.636876][ T7503]  kobject_add_internal+0x631/0xd10
[  314.636902][ T7503]  kobject_init_and_add+0x12b/0x1a0
[  314.636925][ T7503]  ? __pfx_kobject_init_and_add+0x10/0x10
[  314.636945][ T7503]  ? __raw_spin_lock_init+0x45/0x100
[  314.636968][ T7503]  ? __init_swait_queue_head+0xa9/0x150
[  314.636994][ T7503]  gfs2_sys_fs_add+0x257/0x480
[  314.637014][ T7503]  ? is_dynamic_key+0x1ac/0x1c0
[  314.637038][ T7503]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  314.637069][ T7503]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  314.637105][ T7503]  gfs2_fill_super+0x141c/0x2220
[  314.637143][ T7503]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.637165][ T7503]  ? rt_spin_unlock+0x14f/0x200
[  314.637188][ T7503]  ? sb_set_blocksize+0x11b/0x210
[  314.637214][ T7503]  ? setup_bdev_super+0x4c1/0x5b0
[  314.637239][ T7503]  get_tree_bdev_flags+0x431/0x4f0
[  314.637262][ T7503]  ? __pfx_gfs2_fill_super+0x10/0x10
[  314.637285][ T7503]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  314.637304][ T7503]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  314.637334][ T7503]  gfs2_get_tree+0x51/0x1e0
[  314.637367][ T7503]  vfs_get_tree+0x92/0x2a0
[  314.637390][ T7503]  do_new_mount+0x341/0xd30
[  314.637406][ T7503]  ? apparmor_capable+0x126/0x170
[  314.637436][ T7503]  ? __pfx_do_new_mount+0x10/0x10
[  314.637454][ T7503]  ? ns_capable+0x89/0xe0
[  314.637478][ T7503]  ? user_path_at+0xd4/0x160
[  314.637501][ T7503]  ? user_path_at+0xd4/0x160
[  314.637522][ T7503]  __se_sys_mount+0x31d/0x420
[  314.637545][ T7503]  ? __pfx___se_sys_mount+0x10/0x10
[  314.637570][ T7503]  ? __x64_sys_mount+0x20/0xc0
[  314.637587][ T7503]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.637607][ T7503]  do_syscall_64+0x15f/0xf80
[  314.637629][ T7503]  ? trace_irq_disable+0x3b/0x140
[  314.637650][ T7503]  ? clear_bhb_loop+0x40/0x90
[  314.637672][ T7503]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  314.637689][ T7503] RIP: 0033:0x7fda0394b5ca
[  314.637706][ T7503] 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
[  314.637721][ T7503] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  314.637740][ T7503] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  314.637752][ T7503] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  314.637764][ T7503] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  314.637776][ T7503] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  314.637788][ T7503] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  314.637816][ T7503]  </TASK>
[  314.642033][ T7503] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/05/01 04:09:51 executed programs: 232
[  314.642055][ T7503] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  315.293926][ T7505] loop0: detected capacity change from 0 to 32768
[  315.334198][ T7505] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  315.334220][ T7505] CPU: 0 UID: 0 PID: 7505 Comm: syz.0.235 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  315.334241][ T7505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  315.334252][ T7505] Call Trace:
[  315.334260][ T7505]  <TASK>
[  315.334268][ T7505]  dump_stack_lvl+0xe8/0x150
[  315.334303][ T7505]  sysfs_create_dir_ns+0x271/0x2a0
[  315.334324][ T7505]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  315.334348][ T7505]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  315.334370][ T7505]  ? rt_spin_unlock+0x160/0x200
[  315.334393][ T7505]  kobject_add_internal+0x631/0xd10
[  315.334421][ T7505]  kobject_init_and_add+0x12b/0x1a0
[  315.334446][ T7505]  ? __pfx_kobject_init_and_add+0x10/0x10
[  315.334466][ T7505]  ? __raw_spin_lock_init+0x45/0x100
[  315.334492][ T7505]  ? __init_swait_queue_head+0xa9/0x150
[  315.334519][ T7505]  gfs2_sys_fs_add+0x257/0x480
[  315.334539][ T7505]  ? is_dynamic_key+0x1ac/0x1c0
[  315.334564][ T7505]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  315.334594][ T7505]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  315.334633][ T7505]  gfs2_fill_super+0x141c/0x2220
[  315.334673][ T7505]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.334695][ T7505]  ? rt_spin_unlock+0x14f/0x200
[  315.334723][ T7505]  ? sb_set_blocksize+0x11b/0x210
[  315.334750][ T7505]  ? setup_bdev_super+0x4c1/0x5b0
[  315.334777][ T7505]  get_tree_bdev_flags+0x431/0x4f0
[  315.334801][ T7505]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.334825][ T7505]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  315.334846][ T7505]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  315.334879][ T7505]  gfs2_get_tree+0x51/0x1e0
[  315.334906][ T7505]  vfs_get_tree+0x92/0x2a0
[  315.334931][ T7505]  do_new_mount+0x341/0xd30
[  315.334948][ T7505]  ? apparmor_capable+0x126/0x170
[  315.334979][ T7505]  ? __pfx_do_new_mount+0x10/0x10
[  315.334998][ T7505]  ? ns_capable+0x89/0xe0
[  315.335023][ T7505]  ? user_path_at+0xd4/0x160
[  315.335047][ T7505]  ? user_path_at+0xd4/0x160
[  315.335064][ T7505]  __se_sys_mount+0x31d/0x420
[  315.335083][ T7505]  ? __pfx___se_sys_mount+0x10/0x10
[  315.335102][ T7505]  ? __x64_sys_mount+0x20/0xc0
[  315.335120][ T7505]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.335140][ T7505]  do_syscall_64+0x15f/0xf80
[  315.335164][ T7505]  ? trace_irq_disable+0x3b/0x140
[  315.335187][ T7505]  ? clear_bhb_loop+0x40/0x90
[  315.335210][ T7505]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.335227][ T7505] RIP: 0033:0x7fa65a4db5ca
[  315.335245][ T7505] 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
[  315.335261][ T7505] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  315.335281][ T7505] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  315.335294][ T7505] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  315.335313][ T7505] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  315.335326][ T7505] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  315.335338][ T7505] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  315.335367][ T7505]  </TASK>
[  315.335401][ T7505] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  315.335415][ T7505] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  315.916928][ T7514] loop4: detected capacity change from 0 to 32768
[  315.961528][ T7514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  315.961551][ T7514] CPU: 0 UID: 0 PID: 7514 Comm: syz.4.237 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  315.961572][ T7514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  315.961582][ T7514] Call Trace:
[  315.961590][ T7514]  <TASK>
[  315.961597][ T7514]  dump_stack_lvl+0xe8/0x150
[  315.961619][ T7514]  sysfs_create_dir_ns+0x271/0x2a0
[  315.961631][ T7514]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  315.961646][ T7514]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  315.961658][ T7514]  ? rt_spin_unlock+0x160/0x200
[  315.961671][ T7514]  kobject_add_internal+0x631/0xd10
[  315.961685][ T7514]  kobject_init_and_add+0x12b/0x1a0
[  315.961698][ T7514]  ? __pfx_kobject_init_and_add+0x10/0x10
[  315.961709][ T7514]  ? __raw_spin_lock_init+0x45/0x100
[  315.961723][ T7514]  ? __init_swait_queue_head+0xa9/0x150
[  315.961739][ T7514]  gfs2_sys_fs_add+0x257/0x480
[  315.961751][ T7514]  ? is_dynamic_key+0x1ac/0x1c0
[  315.961766][ T7514]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  315.961782][ T7514]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  315.961804][ T7514]  gfs2_fill_super+0x141c/0x2220
[  315.961828][ T7514]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.961841][ T7514]  ? rt_spin_unlock+0x14f/0x200
[  315.961854][ T7514]  ? sb_set_blocksize+0x11b/0x210
[  315.961871][ T7514]  ? setup_bdev_super+0x4c1/0x5b0
[  315.961887][ T7514]  get_tree_bdev_flags+0x431/0x4f0
[  315.961900][ T7514]  ? __pfx_gfs2_fill_super+0x10/0x10
[  315.961915][ T7514]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  315.961926][ T7514]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  315.961944][ T7514]  gfs2_get_tree+0x51/0x1e0
[  315.961960][ T7514]  vfs_get_tree+0x92/0x2a0
[  315.961974][ T7514]  do_new_mount+0x341/0xd30
[  315.961984][ T7514]  ? apparmor_capable+0x126/0x170
[  315.962009][ T7514]  ? __pfx_do_new_mount+0x10/0x10
[  315.962019][ T7514]  ? ns_capable+0x89/0xe0
[  315.962033][ T7514]  ? user_path_at+0xd4/0x160
[  315.962046][ T7514]  ? user_path_at+0xd4/0x160
[  315.962059][ T7514]  __se_sys_mount+0x31d/0x420
[  315.962072][ T7514]  ? __pfx___se_sys_mount+0x10/0x10
[  315.962086][ T7514]  ? __x64_sys_mount+0x20/0xc0
[  315.962095][ T7514]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.962107][ T7514]  do_syscall_64+0x15f/0xf80
[  315.962121][ T7514]  ? trace_irq_disable+0x3b/0x140
[  315.962135][ T7514]  ? clear_bhb_loop+0x40/0x90
[  315.962147][ T7514]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  315.962157][ T7514] RIP: 0033:0x7f9375c8b5ca
[  315.962168][ T7514] 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
[  315.962177][ T7514] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  315.962189][ T7514] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  315.962196][ T7514] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  315.962203][ T7514] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  315.962210][ T7514] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  315.962216][ T7514] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  315.962231][ T7514]  </TASK>
[  315.962249][ T7514] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  315.962258][ T7514] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  316.696344][ T7516] loop1: detected capacity change from 0 to 32768
[  316.742327][ T7516] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  316.742349][ T7516] CPU: 1 UID: 0 PID: 7516 Comm: syz.1.238 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  316.742369][ T7516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  316.742379][ T7516] Call Trace:
[  316.742386][ T7516]  <TASK>
[  316.742395][ T7516]  dump_stack_lvl+0xe8/0x150
[  316.742421][ T7516]  sysfs_create_dir_ns+0x271/0x2a0
[  316.742440][ T7516]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  316.742463][ T7516]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  316.742484][ T7516]  ? rt_spin_unlock+0x160/0x200
[  316.742506][ T7516]  kobject_add_internal+0x631/0xd10
[  316.742531][ T7516]  kobject_init_and_add+0x12b/0x1a0
[  316.742554][ T7516]  ? __pfx_kobject_init_and_add+0x10/0x10
[  316.742571][ T7516]  ? __raw_spin_lock_init+0x45/0x100
[  316.742594][ T7516]  ? __init_swait_queue_head+0xa9/0x150
[  316.742621][ T7516]  gfs2_sys_fs_add+0x257/0x480
[  316.742641][ T7516]  ? is_dynamic_key+0x1ac/0x1c0
[  316.742666][ T7516]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  316.742693][ T7516]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  316.742731][ T7516]  gfs2_fill_super+0x141c/0x2220
[  316.742770][ T7516]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.742792][ T7516]  ? rt_spin_unlock+0x14f/0x200
[  316.742818][ T7516]  ? sb_set_blocksize+0x11b/0x210
[  316.742846][ T7516]  ? setup_bdev_super+0x4c1/0x5b0
[  316.742871][ T7516]  get_tree_bdev_flags+0x431/0x4f0
[  316.742893][ T7516]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.742917][ T7516]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  316.742937][ T7516]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  316.742977][ T7516]  gfs2_get_tree+0x51/0x1e0
[  316.743005][ T7516]  vfs_get_tree+0x92/0x2a0
[  316.743028][ T7516]  do_new_mount+0x341/0xd30
[  316.743045][ T7516]  ? apparmor_capable+0x126/0x170
[  316.743076][ T7516]  ? __pfx_do_new_mount+0x10/0x10
[  316.743094][ T7516]  ? ns_capable+0x89/0xe0
[  316.743118][ T7516]  ? user_path_at+0xd4/0x160
[  316.743143][ T7516]  ? user_path_at+0xd4/0x160
[  316.743164][ T7516]  __se_sys_mount+0x31d/0x420
[  316.743189][ T7516]  ? __pfx___se_sys_mount+0x10/0x10
[  316.743212][ T7516]  ? __x64_sys_mount+0x20/0xc0
[  316.743231][ T7516]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.743250][ T7516]  do_syscall_64+0x15f/0xf80
[  316.743273][ T7516]  ? trace_irq_disable+0x3b/0x140
[  316.743296][ T7516]  ? clear_bhb_loop+0x40/0x90
[  316.743318][ T7516]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.743336][ T7516] RIP: 0033:0x7fa3dbb3b5ca
[  316.743353][ T7516] 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
[  316.743369][ T7516] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  316.743389][ T7516] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  316.743402][ T7516] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  316.743415][ T7516] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  316.743427][ T7516] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  316.743438][ T7516] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  316.743468][ T7516]  </TASK>
[  316.743503][ T7516] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  316.743518][ T7516] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  316.788057][ T7520] loop2: detected capacity change from 0 to 32768
[  316.887869][ T7520] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  316.887892][ T7520] CPU: 0 UID: 0 PID: 7520 Comm: syz.2.239 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  316.887913][ T7520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  316.887923][ T7520] Call Trace:
[  316.887931][ T7520]  <TASK>
[  316.887938][ T7520]  dump_stack_lvl+0xe8/0x150
[  316.887968][ T7520]  sysfs_create_dir_ns+0x271/0x2a0
[  316.887988][ T7520]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  316.888010][ T7520]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  316.888029][ T7520]  ? rt_spin_unlock+0x160/0x200
[  316.888047][ T7520]  kobject_add_internal+0x631/0xd10
[  316.888071][ T7520]  kobject_init_and_add+0x12b/0x1a0
[  316.888093][ T7520]  ? __pfx_kobject_init_and_add+0x10/0x10
[  316.888113][ T7520]  ? __raw_spin_lock_init+0x45/0x100
[  316.888137][ T7520]  ? __init_swait_queue_head+0xa9/0x150
[  316.888163][ T7520]  gfs2_sys_fs_add+0x257/0x480
[  316.888182][ T7520]  ? is_dynamic_key+0x1ac/0x1c0
[  316.888213][ T7520]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  316.888242][ T7520]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  316.888279][ T7520]  gfs2_fill_super+0x141c/0x2220
[  316.888321][ T7520]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.888342][ T7520]  ? rt_spin_unlock+0x14f/0x200
[  316.888366][ T7520]  ? sb_set_blocksize+0x11b/0x210
[  316.888391][ T7520]  ? setup_bdev_super+0x4c1/0x5b0
[  316.888416][ T7520]  get_tree_bdev_flags+0x431/0x4f0
[  316.888438][ T7520]  ? __pfx_gfs2_fill_super+0x10/0x10
[  316.888460][ T7520]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  316.888479][ T7520]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  316.888509][ T7520]  gfs2_get_tree+0x51/0x1e0
[  316.888535][ T7520]  vfs_get_tree+0x92/0x2a0
[  316.888559][ T7520]  do_new_mount+0x341/0xd30
[  316.888576][ T7520]  ? apparmor_capable+0x126/0x170
[  316.888605][ T7520]  ? __pfx_do_new_mount+0x10/0x10
[  316.888623][ T7520]  ? ns_capable+0x89/0xe0
[  316.888646][ T7520]  ? user_path_at+0xd4/0x160
[  316.888670][ T7520]  ? user_path_at+0xd4/0x160
[  316.888692][ T7520]  __se_sys_mount+0x31d/0x420
[  316.888715][ T7520]  ? __pfx___se_sys_mount+0x10/0x10
[  316.888738][ T7520]  ? __x64_sys_mount+0x20/0xc0
[  316.888756][ T7520]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.888775][ T7520]  do_syscall_64+0x15f/0xf80
[  316.888797][ T7520]  ? trace_irq_disable+0x3b/0x140
[  316.888819][ T7520]  ? clear_bhb_loop+0x40/0x90
[  316.888839][ T7520]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  316.888857][ T7520] RIP: 0033:0x7fda0394b5ca
[  316.888874][ T7520] 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
[  316.888889][ T7520] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  316.888928][ T7520] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  316.888940][ T7520] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  316.888952][ T7520] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  316.888963][ T7520] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  316.888975][ T7520] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  316.889003][ T7520]  </TASK>
[  316.889092][ T7520] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  316.889107][ T7520] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  317.355072][ T1338] ieee802154 phy0 wpan0: encryption failed: -22
[  317.355163][ T1338] ieee802154 phy1 wpan1: encryption failed: -22
[  318.189315][ T7524] loop0: detected capacity change from 0 to 32768
[  318.207278][ T7524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  318.207300][ T7524] CPU: 0 UID: 0 PID: 7524 Comm: syz.0.240 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  318.207322][ T7524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  318.207333][ T7524] Call Trace:
[  318.207340][ T7524]  <TASK>
[  318.207348][ T7524]  dump_stack_lvl+0xe8/0x150
[  318.207376][ T7524]  sysfs_create_dir_ns+0x271/0x2a0
[  318.207397][ T7524]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  318.207420][ T7524]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  318.207443][ T7524]  ? rt_spin_unlock+0x160/0x200
[  318.207466][ T7524]  kobject_add_internal+0x631/0xd10
[  318.207494][ T7524]  kobject_init_and_add+0x12b/0x1a0
[  318.207518][ T7524]  ? __pfx_kobject_init_and_add+0x10/0x10
[  318.207543][ T7524]  ? __raw_spin_lock_init+0x45/0x100
[  318.207568][ T7524]  ? __init_swait_queue_head+0xa9/0x150
[  318.207595][ T7524]  gfs2_sys_fs_add+0x257/0x480
[  318.207616][ T7524]  ? is_dynamic_key+0x1ac/0x1c0
[  318.207643][ T7524]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  318.207671][ T7524]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  318.207710][ T7524]  gfs2_fill_super+0x141c/0x2220
[  318.207751][ T7524]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.207773][ T7524]  ? rt_spin_unlock+0x14f/0x200
[  318.207797][ T7524]  ? sb_set_blocksize+0x11b/0x210
[  318.207824][ T7524]  ? setup_bdev_super+0x4c1/0x5b0
[  318.207850][ T7524]  get_tree_bdev_flags+0x431/0x4f0
[  318.207873][ T7524]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.207898][ T7524]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  318.207919][ T7524]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  318.207951][ T7524]  gfs2_get_tree+0x51/0x1e0
[  318.207979][ T7524]  vfs_get_tree+0x92/0x2a0
[  318.208004][ T7524]  do_new_mount+0x341/0xd30
[  318.208020][ T7524]  ? apparmor_capable+0x126/0x170
[  318.208051][ T7524]  ? __pfx_do_new_mount+0x10/0x10
[  318.208076][ T7524]  ? ns_capable+0x89/0xe0
[  318.208102][ T7524]  ? user_path_at+0xd4/0x160
[  318.208126][ T7524]  ? user_path_at+0xd4/0x160
[  318.208149][ T7524]  __se_sys_mount+0x31d/0x420
[  318.208173][ T7524]  ? __pfx___se_sys_mount+0x10/0x10
[  318.208198][ T7524]  ? __x64_sys_mount+0x20/0xc0
[  318.208216][ T7524]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.208236][ T7524]  do_syscall_64+0x15f/0xf80
[  318.208260][ T7524]  ? trace_irq_disable+0x3b/0x140
[  318.208283][ T7524]  ? clear_bhb_loop+0x40/0x90
[  318.208305][ T7524]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.208323][ T7524] RIP: 0033:0x7fa65a4db5ca
[  318.208342][ T7524] 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
[  318.208357][ T7524] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  318.208378][ T7524] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  318.208391][ T7524] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  318.208403][ T7524] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  318.208415][ T7524] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  318.208428][ T7524] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  318.208456][ T7524]  </TASK>
[  318.208482][ T7524] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  318.208496][ T7524] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  318.939882][ T7528] loop4: detected capacity change from 0 to 32768
[  318.976094][ T7528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  318.976119][ T7528] CPU: 0 UID: 0 PID: 7528 Comm: syz.4.241 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  318.976141][ T7528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  318.976152][ T7528] Call Trace:
[  318.976160][ T7528]  <TASK>
[  318.976168][ T7528]  dump_stack_lvl+0xe8/0x150
[  318.976197][ T7528]  sysfs_create_dir_ns+0x271/0x2a0
[  318.976218][ T7528]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  318.976240][ T7528]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  318.976259][ T7528]  ? rt_spin_unlock+0x160/0x200
[  318.976280][ T7528]  kobject_add_internal+0x631/0xd10
[  318.976306][ T7528]  kobject_init_and_add+0x12b/0x1a0
[  318.976330][ T7528]  ? __pfx_kobject_init_and_add+0x10/0x10
[  318.976350][ T7528]  ? __raw_spin_lock_init+0x45/0x100
[  318.976375][ T7528]  ? __init_swait_queue_head+0xa9/0x150
[  318.976402][ T7528]  gfs2_sys_fs_add+0x257/0x480
[  318.976422][ T7528]  ? is_dynamic_key+0x1ac/0x1c0
[  318.976448][ T7528]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  318.976477][ T7528]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  318.976516][ T7528]  gfs2_fill_super+0x141c/0x2220
[  318.976556][ T7528]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.976579][ T7528]  ? rt_spin_unlock+0x14f/0x200
[  318.976604][ T7528]  ? sb_set_blocksize+0x11b/0x210
[  318.976630][ T7528]  ? setup_bdev_super+0x4c1/0x5b0
[  318.976657][ T7528]  get_tree_bdev_flags+0x431/0x4f0
[  318.976681][ T7528]  ? __pfx_gfs2_fill_super+0x10/0x10
[  318.976704][ T7528]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  318.976725][ T7528]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  318.976757][ T7528]  gfs2_get_tree+0x51/0x1e0
[  318.976785][ T7528]  vfs_get_tree+0x92/0x2a0
[  318.976809][ T7528]  do_new_mount+0x341/0xd30
[  318.976825][ T7528]  ? apparmor_capable+0x126/0x170
[  318.976856][ T7528]  ? __pfx_do_new_mount+0x10/0x10
[  318.976874][ T7528]  ? ns_capable+0x89/0xe0
[  318.976898][ T7528]  ? user_path_at+0xd4/0x160
[  318.976923][ T7528]  ? user_path_at+0xd4/0x160
[  318.976945][ T7528]  __se_sys_mount+0x31d/0x420
[  318.976969][ T7528]  ? __pfx___se_sys_mount+0x10/0x10
[  318.976994][ T7528]  ? __x64_sys_mount+0x20/0xc0
[  318.977012][ T7528]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.977032][ T7528]  do_syscall_64+0x15f/0xf80
[  318.977064][ T7528]  ? trace_irq_disable+0x3b/0x140
[  318.977087][ T7528]  ? clear_bhb_loop+0x40/0x90
[  318.977109][ T7528]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.977127][ T7528] RIP: 0033:0x7f9375c8b5ca
[  318.977145][ T7528] 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
[  318.977161][ T7528] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  318.977181][ T7528] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  318.977194][ T7528] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  318.977206][ T7528] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  318.977219][ T7528] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  318.977230][ T7528] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  318.977260][ T7528]  </TASK>
[  318.977286][ T7528] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  318.977314][ T7528] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  319.449605][ T7536] loop2: detected capacity change from 0 to 32768
[  319.477690][ T7536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  319.477712][ T7536] CPU: 1 UID: 0 PID: 7536 Comm: syz.2.243 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  319.477732][ T7536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  319.477743][ T7536] Call Trace:
[  319.477758][ T7536]  <TASK>
[  319.477766][ T7536]  dump_stack_lvl+0xe8/0x150
[  319.477797][ T7536]  sysfs_create_dir_ns+0x271/0x2a0
[  319.477817][ T7536]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  319.477841][ T7536]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  319.477863][ T7536]  ? rt_spin_unlock+0x160/0x200
[  319.477886][ T7536]  kobject_add_internal+0x631/0xd10
[  319.477912][ T7536]  kobject_init_and_add+0x12b/0x1a0
[  319.477936][ T7536]  ? __pfx_kobject_init_and_add+0x10/0x10
[  319.477957][ T7536]  ? __raw_spin_lock_init+0x45/0x100
[  319.477981][ T7536]  ? __init_swait_queue_head+0xa9/0x150
[  319.478008][ T7536]  gfs2_sys_fs_add+0x257/0x480
[  319.478032][ T7536]  ? is_dynamic_key+0x1ac/0x1c0
[  319.478057][ T7536]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  319.478086][ T7536]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  319.478125][ T7536]  gfs2_fill_super+0x141c/0x2220
[  319.478166][ T7536]  ? __pfx_gfs2_fill_super+0x10/0x10
[  319.478195][ T7536]  ? sb_set_blocksize+0x11b/0x210
[  319.478222][ T7536]  ? setup_bdev_super+0x4c1/0x5b0
[  319.478249][ T7536]  get_tree_bdev_flags+0x431/0x4f0
[  319.478270][ T7536]  ? __pfx_gfs2_fill_super+0x10/0x10
[  319.478292][ T7536]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  319.478310][ T7536]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  319.478342][ T7536]  gfs2_get_tree+0x51/0x1e0
[  319.478367][ T7536]  vfs_get_tree+0x92/0x2a0
[  319.478390][ T7536]  do_new_mount+0x341/0xd30
[  319.478405][ T7536]  ? apparmor_capable+0x126/0x170
[  319.478436][ T7536]  ? __pfx_do_new_mount+0x10/0x10
[  319.478454][ T7536]  ? ns_capable+0x89/0xe0
[  319.478478][ T7536]  ? user_path_at+0xd4/0x160
[  319.478502][ T7536]  ? user_path_at+0xd4/0x160
[  319.478524][ T7536]  __se_sys_mount+0x31d/0x420
[  319.478548][ T7536]  ? __pfx___se_sys_mount+0x10/0x10
[  319.478573][ T7536]  ? __x64_sys_mount+0x20/0xc0
[  319.478590][ T7536]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  319.478610][ T7536]  do_syscall_64+0x15f/0xf80
[  319.478632][ T7536]  ? trace_irq_disable+0x3b/0x140
[  319.478655][ T7536]  ? clear_bhb_loop+0x40/0x90
[  319.478685][ T7536]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  319.478703][ T7536] RIP: 0033:0x7fda0394b5ca
[  319.478720][ T7536] 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
[  319.478736][ T7536] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  319.478756][ T7536] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  319.478769][ T7536] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  319.478782][ T7536] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  319.478793][ T7536] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  319.478805][ T7536] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  319.478834][ T7536]  </TASK>
[  319.480078][ T7536] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  319.480096][ T7536] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  320.053174][ T7538] loop5: detected capacity change from 0 to 32768
[  320.130951][ T7538] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  320.130973][ T7538] CPU: 0 UID: 0 PID: 7538 Comm: syz.5.244 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  320.130994][ T7538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  320.131004][ T7538] Call Trace:
[  320.131010][ T7538]  <TASK>
[  320.131018][ T7538]  dump_stack_lvl+0xe8/0x150
[  320.131046][ T7538]  sysfs_create_dir_ns+0x271/0x2a0
[  320.131067][ T7538]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  320.131090][ T7538]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  320.131112][ T7538]  ? rt_spin_unlock+0x160/0x200
[  320.131135][ T7538]  kobject_add_internal+0x631/0xd10
[  320.131161][ T7538]  kobject_init_and_add+0x12b/0x1a0
[  320.131186][ T7538]  ? __pfx_kobject_init_and_add+0x10/0x10
[  320.131206][ T7538]  ? __raw_spin_lock_init+0x45/0x100
[  320.131231][ T7538]  ? __init_swait_queue_head+0xa9/0x150
[  320.131258][ T7538]  gfs2_sys_fs_add+0x257/0x480
[  320.131277][ T7538]  ? is_dynamic_key+0x1ac/0x1c0
[  320.131302][ T7538]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  320.131331][ T7538]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  320.131370][ T7538]  gfs2_fill_super+0x141c/0x2220
[  320.131409][ T7538]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.131432][ T7538]  ? rt_spin_unlock+0x14f/0x200
[  320.131456][ T7538]  ? sb_set_blocksize+0x11b/0x210
[  320.131483][ T7538]  ? setup_bdev_super+0x4c1/0x5b0
[  320.131509][ T7538]  get_tree_bdev_flags+0x431/0x4f0
[  320.131532][ T7538]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.131555][ T7538]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  320.131576][ T7538]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  320.131607][ T7538]  gfs2_get_tree+0x51/0x1e0
[  320.131642][ T7538]  vfs_get_tree+0x92/0x2a0
[  320.131667][ T7538]  do_new_mount+0x341/0xd30
[  320.131684][ T7538]  ? apparmor_capable+0x126/0x170
[  320.131715][ T7538]  ? __pfx_do_new_mount+0x10/0x10
[  320.131733][ T7538]  ? ns_capable+0x89/0xe0
[  320.131758][ T7538]  ? user_path_at+0xd4/0x160
[  320.131783][ T7538]  ? user_path_at+0xd4/0x160
[  320.131804][ T7538]  __se_sys_mount+0x31d/0x420
[  320.131829][ T7538]  ? __pfx___se_sys_mount+0x10/0x10
[  320.131854][ T7538]  ? __x64_sys_mount+0x20/0xc0
[  320.131871][ T7538]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.131891][ T7538]  do_syscall_64+0x15f/0xf80
[  320.131914][ T7538]  ? trace_irq_disable+0x3b/0x140
[  320.131936][ T7538]  ? clear_bhb_loop+0x40/0x90
[  320.131961][ T7538]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.131979][ T7538] RIP: 0033:0x7fcd1d0cb5ca
[  320.131997][ T7538] 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
[  320.132012][ T7538] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  320.132032][ T7538] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  320.132045][ T7538] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  320.132057][ T7538] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  320.132069][ T7538] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  320.132081][ T7538] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  320.132110][ T7538]  </TASK>
[  320.132147][ T7538] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  320.132162][ T7538] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/05/01 04:09:57 executed programs: 241
[  320.169033][ T7535] loop1: detected capacity change from 0 to 32768
[  320.265791][ T7535] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  320.265813][ T7535] CPU: 0 UID: 0 PID: 7535 Comm: syz.1.242 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  320.265835][ T7535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  320.265846][ T7535] Call Trace:
[  320.265853][ T7535]  <TASK>
[  320.265860][ T7535]  dump_stack_lvl+0xe8/0x150
[  320.265889][ T7535]  sysfs_create_dir_ns+0x271/0x2a0
[  320.265908][ T7535]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  320.265932][ T7535]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  320.265954][ T7535]  ? rt_spin_unlock+0x160/0x200
[  320.265975][ T7535]  kobject_add_internal+0x631/0xd10
[  320.266000][ T7535]  kobject_init_and_add+0x12b/0x1a0
[  320.266023][ T7535]  ? __pfx_kobject_init_and_add+0x10/0x10
[  320.266043][ T7535]  ? __raw_spin_lock_init+0x45/0x100
[  320.266068][ T7535]  ? __init_swait_queue_head+0xa9/0x150
[  320.266093][ T7535]  gfs2_sys_fs_add+0x257/0x480
[  320.266112][ T7535]  ? is_dynamic_key+0x1ac/0x1c0
[  320.266136][ T7535]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  320.266163][ T7535]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  320.266198][ T7535]  gfs2_fill_super+0x141c/0x2220
[  320.266235][ T7535]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.266257][ T7535]  ? rt_spin_unlock+0x14f/0x200
[  320.266280][ T7535]  ? sb_set_blocksize+0x11b/0x210
[  320.266306][ T7535]  ? setup_bdev_super+0x4c1/0x5b0
[  320.266332][ T7535]  get_tree_bdev_flags+0x431/0x4f0
[  320.266354][ T7535]  ? __pfx_gfs2_fill_super+0x10/0x10
[  320.266377][ T7535]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  320.266396][ T7535]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  320.266427][ T7535]  gfs2_get_tree+0x51/0x1e0
[  320.266453][ T7535]  vfs_get_tree+0x92/0x2a0
[  320.266476][ T7535]  do_new_mount+0x341/0xd30
[  320.266491][ T7535]  ? apparmor_capable+0x126/0x170
[  320.266521][ T7535]  ? __pfx_do_new_mount+0x10/0x10
[  320.266538][ T7535]  ? ns_capable+0x89/0xe0
[  320.266562][ T7535]  ? user_path_at+0xd4/0x160
[  320.266584][ T7535]  ? user_path_at+0xd4/0x160
[  320.266612][ T7535]  __se_sys_mount+0x31d/0x420
[  320.266635][ T7535]  ? __pfx___se_sys_mount+0x10/0x10
[  320.266659][ T7535]  ? __x64_sys_mount+0x20/0xc0
[  320.266677][ T7535]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.266695][ T7535]  do_syscall_64+0x15f/0xf80
[  320.266718][ T7535]  ? trace_irq_disable+0x3b/0x140
[  320.266740][ T7535]  ? clear_bhb_loop+0x40/0x90
[  320.266762][ T7535]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  320.266779][ T7535] RIP: 0033:0x7fa3dbb3b5ca
[  320.266797][ T7535] 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
[  320.266812][ T7535] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  320.266831][ T7535] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  320.266844][ T7535] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  320.266856][ T7535] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  320.266867][ T7535] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  320.266878][ T7535] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  320.266906][ T7535]  </TASK>
[  320.266931][ T7535] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  320.266946][ T7535] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  321.058795][ T7542] loop0: detected capacity change from 0 to 32768
[  321.088772][ T7542] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  321.088795][ T7542] CPU: 0 UID: 0 PID: 7542 Comm: syz.0.245 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  321.088816][ T7542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  321.088835][ T7542] Call Trace:
[  321.088842][ T7542]  <TASK>
[  321.088850][ T7542]  dump_stack_lvl+0xe8/0x150
[  321.088879][ T7542]  sysfs_create_dir_ns+0x271/0x2a0
[  321.088901][ T7542]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  321.088923][ T7542]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  321.088946][ T7542]  ? rt_spin_unlock+0x160/0x200
[  321.088969][ T7542]  kobject_add_internal+0x631/0xd10
[  321.088995][ T7542]  kobject_init_and_add+0x12b/0x1a0
[  321.089020][ T7542]  ? __pfx_kobject_init_and_add+0x10/0x10
[  321.089040][ T7542]  ? __raw_spin_lock_init+0x45/0x100
[  321.089064][ T7542]  ? __init_swait_queue_head+0xa9/0x150
[  321.089089][ T7542]  gfs2_sys_fs_add+0x257/0x480
[  321.089108][ T7542]  ? is_dynamic_key+0x1ac/0x1c0
[  321.089131][ T7542]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  321.089160][ T7542]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  321.089199][ T7542]  gfs2_fill_super+0x141c/0x2220
[  321.089238][ T7542]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.089260][ T7542]  ? rt_spin_unlock+0x14f/0x200
[  321.089285][ T7542]  ? sb_set_blocksize+0x11b/0x210
[  321.089312][ T7542]  ? setup_bdev_super+0x4c1/0x5b0
[  321.089338][ T7542]  get_tree_bdev_flags+0x431/0x4f0
[  321.089360][ T7542]  ? __pfx_gfs2_fill_super+0x10/0x10
[  321.089382][ T7542]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  321.089407][ T7542]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  321.089439][ T7542]  gfs2_get_tree+0x51/0x1e0
[  321.089467][ T7542]  vfs_get_tree+0x92/0x2a0
[  321.089492][ T7542]  do_new_mount+0x341/0xd30
[  321.089510][ T7542]  ? apparmor_capable+0x126/0x170
[  321.089541][ T7542]  ? __pfx_do_new_mount+0x10/0x10
[  321.089560][ T7542]  ? ns_capable+0x89/0xe0
[  321.089584][ T7542]  ? user_path_at+0xd4/0x160
[  321.089609][ T7542]  ? user_path_at+0xd4/0x160
[  321.089631][ T7542]  __se_sys_mount+0x31d/0x420
[  321.089656][ T7542]  ? __pfx___se_sys_mount+0x10/0x10
[  321.089681][ T7542]  ? __x64_sys_mount+0x20/0xc0
[  321.089699][ T7542]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.089718][ T7542]  do_syscall_64+0x15f/0xf80
[  321.089742][ T7542]  ? trace_irq_disable+0x3b/0x140
[  321.089765][ T7542]  ? clear_bhb_loop+0x40/0x90
[  321.089788][ T7542]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  321.089806][ T7542] RIP: 0033:0x7fa65a4db5ca
[  321.089830][ T7542] 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
[  321.089846][ T7542] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  321.089866][ T7542] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  321.089880][ T7542] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  321.089892][ T7542] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  321.089904][ T7542] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  321.089916][ T7542] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  321.089945][ T7542]  </TASK>
[  321.101531][ T7542] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  321.101552][ T7542] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  322.231416][ T7549] loop2: detected capacity change from 0 to 32768
[  322.249341][ T7549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  322.249364][ T7549] CPU: 1 UID: 0 PID: 7549 Comm: syz.2.247 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  322.249384][ T7549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  322.249395][ T7549] Call Trace:
[  322.249402][ T7549]  <TASK>
[  322.249410][ T7549]  dump_stack_lvl+0xe8/0x150
[  322.249439][ T7549]  sysfs_create_dir_ns+0x271/0x2a0
[  322.249459][ T7549]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  322.249482][ T7549]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  322.249505][ T7549]  ? rt_spin_unlock+0x160/0x200
[  322.249528][ T7549]  kobject_add_internal+0x631/0xd10
[  322.249554][ T7549]  kobject_init_and_add+0x12b/0x1a0
[  322.249579][ T7549]  ? __pfx_kobject_init_and_add+0x10/0x10
[  322.249600][ T7549]  ? __raw_spin_lock_init+0x45/0x100
[  322.249625][ T7549]  ? __init_swait_queue_head+0xa9/0x150
[  322.249652][ T7549]  gfs2_sys_fs_add+0x257/0x480
[  322.249672][ T7549]  ? is_dynamic_key+0x1ac/0x1c0
[  322.249705][ T7549]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  322.249734][ T7549]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  322.249773][ T7549]  gfs2_fill_super+0x141c/0x2220
[  322.249813][ T7549]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.249836][ T7549]  ? rt_spin_unlock+0x14f/0x200
[  322.249861][ T7549]  ? sb_set_blocksize+0x11b/0x210
[  322.249889][ T7549]  ? setup_bdev_super+0x4c1/0x5b0
[  322.249914][ T7549]  get_tree_bdev_flags+0x431/0x4f0
[  322.249937][ T7549]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.249961][ T7549]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  322.249982][ T7549]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  322.250014][ T7549]  gfs2_get_tree+0x51/0x1e0
[  322.250041][ T7549]  vfs_get_tree+0x92/0x2a0
[  322.250065][ T7549]  do_new_mount+0x341/0xd30
[  322.250082][ T7549]  ? apparmor_capable+0x126/0x170
[  322.250114][ T7549]  ? __pfx_do_new_mount+0x10/0x10
[  322.250132][ T7549]  ? ns_capable+0x89/0xe0
[  322.250158][ T7549]  ? user_path_at+0xd4/0x160
[  322.250182][ T7549]  ? user_path_at+0xd4/0x160
[  322.250205][ T7549]  __se_sys_mount+0x31d/0x420
[  322.250230][ T7549]  ? __pfx___se_sys_mount+0x10/0x10
[  322.250255][ T7549]  ? __x64_sys_mount+0x20/0xc0
[  322.250273][ T7549]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.250293][ T7549]  do_syscall_64+0x15f/0xf80
[  322.250316][ T7549]  ? trace_irq_disable+0x3b/0x140
[  322.250338][ T7549]  ? clear_bhb_loop+0x40/0x90
[  322.250360][ T7549]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.250378][ T7549] RIP: 0033:0x7fda0394b5ca
[  322.250397][ T7549] 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
[  322.250412][ T7549] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  322.250432][ T7549] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  322.250446][ T7549] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  322.250458][ T7549] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  322.250470][ T7549] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  322.250482][ T7549] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  322.250512][ T7549]  </TASK>
[  322.250537][ T7549] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  322.344531][ T7549] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  322.718954][ T7550] loop4: detected capacity change from 0 to 32768
[  322.816523][ T7550] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  322.816545][ T7550] CPU: 1 UID: 0 PID: 7550 Comm: syz.4.246 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  322.816567][ T7550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  322.816578][ T7550] Call Trace:
[  322.816586][ T7550]  <TASK>
[  322.816593][ T7550]  dump_stack_lvl+0xe8/0x150
[  322.816623][ T7550]  sysfs_create_dir_ns+0x271/0x2a0
[  322.816643][ T7550]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  322.816666][ T7550]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  322.816689][ T7550]  ? rt_spin_unlock+0x160/0x200
[  322.816708][ T7550]  kobject_add_internal+0x631/0xd10
[  322.816729][ T7550]  kobject_init_and_add+0x12b/0x1a0
[  322.816751][ T7550]  ? __pfx_kobject_init_and_add+0x10/0x10
[  322.816770][ T7550]  ? __raw_spin_lock_init+0x45/0x100
[  322.816794][ T7550]  ? __init_swait_queue_head+0xa9/0x150
[  322.816820][ T7550]  gfs2_sys_fs_add+0x257/0x480
[  322.816840][ T7550]  ? is_dynamic_key+0x1ac/0x1c0
[  322.816864][ T7550]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  322.816892][ T7550]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  322.816929][ T7550]  gfs2_fill_super+0x141c/0x2220
[  322.816969][ T7550]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.816990][ T7550]  ? rt_spin_unlock+0x14f/0x200
[  322.817019][ T7550]  ? sb_set_blocksize+0x11b/0x210
[  322.817046][ T7550]  ? setup_bdev_super+0x4c1/0x5b0
[  322.817072][ T7550]  get_tree_bdev_flags+0x431/0x4f0
[  322.817095][ T7550]  ? __pfx_gfs2_fill_super+0x10/0x10
[  322.817119][ T7550]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  322.817139][ T7550]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  322.817169][ T7550]  gfs2_get_tree+0x51/0x1e0
[  322.817195][ T7550]  vfs_get_tree+0x92/0x2a0
[  322.817220][ T7550]  do_new_mount+0x341/0xd30
[  322.817237][ T7550]  ? apparmor_capable+0x126/0x170
[  322.817267][ T7550]  ? __pfx_do_new_mount+0x10/0x10
[  322.817284][ T7550]  ? ns_capable+0x89/0xe0
[  322.817307][ T7550]  ? user_path_at+0xd4/0x160
[  322.817331][ T7550]  ? user_path_at+0xd4/0x160
[  322.817353][ T7550]  __se_sys_mount+0x31d/0x420
[  322.817376][ T7550]  ? __pfx___se_sys_mount+0x10/0x10
[  322.817401][ T7550]  ? __x64_sys_mount+0x20/0xc0
[  322.817419][ T7550]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.817439][ T7550]  do_syscall_64+0x15f/0xf80
[  322.817473][ T7550]  ? trace_irq_disable+0x3b/0x140
[  322.817496][ T7550]  ? clear_bhb_loop+0x40/0x90
[  322.817518][ T7550]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  322.817536][ T7550] RIP: 0033:0x7f9375c8b5ca
[  322.817554][ T7550] 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
[  322.817571][ T7550] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  322.817591][ T7550] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  322.817605][ T7550] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  322.817618][ T7550] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  322.817630][ T7550] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  322.817642][ T7550] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  322.817671][ T7550]  </TASK>
[  322.817709][ T7550] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  322.817723][ T7550] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  323.239062][ T7557] loop1: detected capacity change from 0 to 32768
[  323.273387][ T7557] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  323.273415][ T7557] CPU: 1 UID: 0 PID: 7557 Comm: syz.1.249 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  323.273434][ T7557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  323.273445][ T7557] Call Trace:
[  323.273452][ T7557]  <TASK>
[  323.273460][ T7557]  dump_stack_lvl+0xe8/0x150
[  323.273489][ T7557]  sysfs_create_dir_ns+0x271/0x2a0
[  323.273509][ T7557]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  323.273532][ T7557]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  323.273555][ T7557]  ? rt_spin_unlock+0x160/0x200
[  323.273578][ T7557]  kobject_add_internal+0x631/0xd10
[  323.273604][ T7557]  kobject_init_and_add+0x12b/0x1a0
[  323.273627][ T7557]  ? __pfx_kobject_init_and_add+0x10/0x10
[  323.273650][ T7557]  ? __raw_spin_lock_init+0x45/0x100
[  323.273674][ T7557]  ? __init_swait_queue_head+0xa9/0x150
[  323.273701][ T7557]  gfs2_sys_fs_add+0x257/0x480
[  323.273721][ T7557]  ? is_dynamic_key+0x1ac/0x1c0
[  323.273745][ T7557]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  323.273772][ T7557]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  323.273808][ T7557]  gfs2_fill_super+0x141c/0x2220
[  323.273846][ T7557]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.273868][ T7557]  ? rt_spin_unlock+0x14f/0x200
[  323.273893][ T7557]  ? sb_set_blocksize+0x11b/0x210
[  323.273918][ T7557]  ? setup_bdev_super+0x4c1/0x5b0
[  323.273944][ T7557]  get_tree_bdev_flags+0x431/0x4f0
[  323.273967][ T7557]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.273988][ T7557]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  323.274008][ T7557]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  323.274039][ T7557]  gfs2_get_tree+0x51/0x1e0
[  323.274066][ T7557]  vfs_get_tree+0x92/0x2a0
[  323.274091][ T7557]  do_new_mount+0x341/0xd30
[  323.274107][ T7557]  ? apparmor_capable+0x126/0x170
[  323.274138][ T7557]  ? __pfx_do_new_mount+0x10/0x10
[  323.274157][ T7557]  ? ns_capable+0x89/0xe0
[  323.274182][ T7557]  ? user_path_at+0xd4/0x160
[  323.274206][ T7557]  ? user_path_at+0xd4/0x160
[  323.274228][ T7557]  __se_sys_mount+0x31d/0x420
[  323.274251][ T7557]  ? __pfx___se_sys_mount+0x10/0x10
[  323.274275][ T7557]  ? __x64_sys_mount+0x20/0xc0
[  323.274293][ T7557]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.274313][ T7557]  do_syscall_64+0x15f/0xf80
[  323.274336][ T7557]  ? trace_irq_disable+0x3b/0x140
[  323.274359][ T7557]  ? clear_bhb_loop+0x40/0x90
[  323.274381][ T7557]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.274399][ T7557] RIP: 0033:0x7fa3dbb3b5ca
[  323.274424][ T7557] 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
[  323.274440][ T7557] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  323.274460][ T7557] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  323.274473][ T7557] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  323.274485][ T7557] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  323.274497][ T7557] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  323.274508][ T7557] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  323.274537][ T7557]  </TASK>
[  323.274573][ T7557] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  323.274588][ T7557] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  323.334970][ T7558] loop5: detected capacity change from 0 to 32768
[  323.352762][ T7558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  323.352783][ T7558] CPU: 0 UID: 0 PID: 7558 Comm: syz.5.248 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  323.352803][ T7558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  323.352815][ T7558] Call Trace:
[  323.352822][ T7558]  <TASK>
[  323.352829][ T7558]  dump_stack_lvl+0xe8/0x150
[  323.352858][ T7558]  sysfs_create_dir_ns+0x271/0x2a0
[  323.352878][ T7558]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  323.352900][ T7558]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  323.352922][ T7558]  ? rt_spin_unlock+0x160/0x200
[  323.352944][ T7558]  kobject_add_internal+0x631/0xd10
[  323.352969][ T7558]  kobject_init_and_add+0x12b/0x1a0
[  323.352992][ T7558]  ? __pfx_kobject_init_and_add+0x10/0x10
[  323.353012][ T7558]  ? __raw_spin_lock_init+0x45/0x100
[  323.353036][ T7558]  ? __init_swait_queue_head+0xa9/0x150
[  323.353062][ T7558]  gfs2_sys_fs_add+0x257/0x480
[  323.353081][ T7558]  ? is_dynamic_key+0x1ac/0x1c0
[  323.353106][ T7558]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  323.353133][ T7558]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  323.353170][ T7558]  gfs2_fill_super+0x141c/0x2220
[  323.353207][ T7558]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.353229][ T7558]  ? rt_spin_unlock+0x14f/0x200
[  323.353253][ T7558]  ? sb_set_blocksize+0x11b/0x210
[  323.353282][ T7558]  ? setup_bdev_super+0x4c1/0x5b0
[  323.353307][ T7558]  get_tree_bdev_flags+0x431/0x4f0
[  323.353329][ T7558]  ? __pfx_gfs2_fill_super+0x10/0x10
[  323.353352][ T7558]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  323.353372][ T7558]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  323.353403][ T7558]  gfs2_get_tree+0x51/0x1e0
[  323.353428][ T7558]  vfs_get_tree+0x92/0x2a0
[  323.353453][ T7558]  do_new_mount+0x341/0xd30
[  323.353469][ T7558]  ? apparmor_capable+0x126/0x170
[  323.353499][ T7558]  ? __pfx_do_new_mount+0x10/0x10
[  323.353516][ T7558]  ? ns_capable+0x89/0xe0
[  323.353540][ T7558]  ? user_path_at+0xd4/0x160
[  323.353563][ T7558]  ? user_path_at+0xd4/0x160
[  323.353585][ T7558]  __se_sys_mount+0x31d/0x420
[  323.353609][ T7558]  ? __pfx___se_sys_mount+0x10/0x10
[  323.353632][ T7558]  ? __x64_sys_mount+0x20/0xc0
[  323.353655][ T7558]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.353674][ T7558]  do_syscall_64+0x15f/0xf80
[  323.353696][ T7558]  ? trace_irq_disable+0x3b/0x140
[  323.353718][ T7558]  ? clear_bhb_loop+0x40/0x90
[  323.353739][ T7558]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  323.353756][ T7558] RIP: 0033:0x7fcd1d0cb5ca
[  323.353773][ T7558] 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
[  323.353788][ T7558] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  323.353807][ T7558] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  323.353819][ T7558] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  323.353831][ T7558] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  323.353842][ T7558] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  323.353854][ T7558] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  323.353882][ T7558]  </TASK>
[  323.359865][ T7558] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  323.359885][ T7558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  324.400809][ T7562] loop0: detected capacity change from 0 to 32768
[  324.425095][ T7562] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  324.425118][ T7562] CPU: 0 UID: 0 PID: 7562 Comm: syz.0.250 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  324.425139][ T7562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  324.425151][ T7562] Call Trace:
[  324.425158][ T7562]  <TASK>
[  324.425166][ T7562]  dump_stack_lvl+0xe8/0x150
[  324.425194][ T7562]  sysfs_create_dir_ns+0x271/0x2a0
[  324.425215][ T7562]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  324.425246][ T7562]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  324.425269][ T7562]  ? rt_spin_unlock+0x160/0x200
[  324.425292][ T7562]  kobject_add_internal+0x631/0xd10
[  324.425318][ T7562]  kobject_init_and_add+0x12b/0x1a0
[  324.425343][ T7562]  ? __pfx_kobject_init_and_add+0x10/0x10
[  324.425363][ T7562]  ? __raw_spin_lock_init+0x45/0x100
[  324.425388][ T7562]  ? __init_swait_queue_head+0xa9/0x150
[  324.425416][ T7562]  gfs2_sys_fs_add+0x257/0x480
[  324.425435][ T7562]  ? is_dynamic_key+0x1ac/0x1c0
[  324.425461][ T7562]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  324.425489][ T7562]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  324.425529][ T7562]  gfs2_fill_super+0x141c/0x2220
[  324.425568][ T7562]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.425590][ T7562]  ? rt_spin_unlock+0x14f/0x200
[  324.425614][ T7562]  ? sb_set_blocksize+0x11b/0x210
[  324.425641][ T7562]  ? setup_bdev_super+0x4c1/0x5b0
[  324.425668][ T7562]  get_tree_bdev_flags+0x431/0x4f0
[  324.425691][ T7562]  ? __pfx_gfs2_fill_super+0x10/0x10
[  324.425714][ T7562]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  324.425735][ T7562]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  324.425767][ T7562]  gfs2_get_tree+0x51/0x1e0
[  324.425794][ T7562]  vfs_get_tree+0x92/0x2a0
[  324.425823][ T7562]  do_new_mount+0x341/0xd30
[  324.425840][ T7562]  ? apparmor_capable+0x126/0x170
[  324.425870][ T7562]  ? __pfx_do_new_mount+0x10/0x10
[  324.425889][ T7562]  ? ns_capable+0x89/0xe0
[  324.425913][ T7562]  ? user_path_at+0xd4/0x160
[  324.425937][ T7562]  ? user_path_at+0xd4/0x160
[  324.425959][ T7562]  __se_sys_mount+0x31d/0x420
[  324.425984][ T7562]  ? __pfx___se_sys_mount+0x10/0x10
[  324.426008][ T7562]  ? __x64_sys_mount+0x20/0xc0
[  324.426027][ T7562]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.426046][ T7562]  do_syscall_64+0x15f/0xf80
[  324.426069][ T7562]  ? trace_irq_disable+0x3b/0x140
[  324.426091][ T7562]  ? clear_bhb_loop+0x40/0x90
[  324.426114][ T7562]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  324.426131][ T7562] RIP: 0033:0x7fa65a4db5ca
[  324.426149][ T7562] 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
[  324.426165][ T7562] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  324.426185][ T7562] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  324.426198][ T7562] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  324.426211][ T7562] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  324.426229][ T7562] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  324.426241][ T7562] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  324.426270][ T7562]  </TASK>
[  324.429516][ T7562] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  324.429537][ T7562] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.519610][ T7566] loop2: detected capacity change from 0 to 32768
[  325.549097][ T7566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  325.549120][ T7566] CPU: 0 UID: 0 PID: 7566 Comm: syz.2.251 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.549141][ T7566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  325.549152][ T7566] Call Trace:
[  325.549160][ T7566]  <TASK>
[  325.549168][ T7566]  dump_stack_lvl+0xe8/0x150
[  325.549197][ T7566]  sysfs_create_dir_ns+0x271/0x2a0
[  325.549218][ T7566]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  325.549242][ T7566]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.549265][ T7566]  ? rt_spin_unlock+0x160/0x200
[  325.549288][ T7566]  kobject_add_internal+0x631/0xd10
[  325.549314][ T7566]  kobject_init_and_add+0x12b/0x1a0
[  325.549339][ T7566]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.549359][ T7566]  ? __raw_spin_lock_init+0x45/0x100
[  325.549383][ T7566]  ? __init_swait_queue_head+0xa9/0x150
[  325.549416][ T7566]  gfs2_sys_fs_add+0x257/0x480
[  325.549436][ T7566]  ? is_dynamic_key+0x1ac/0x1c0
[  325.549460][ T7566]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.549488][ T7566]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.549527][ T7566]  gfs2_fill_super+0x141c/0x2220
[  325.549567][ T7566]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.549590][ T7566]  ? rt_spin_unlock+0x14f/0x200
[  325.549615][ T7566]  ? sb_set_blocksize+0x11b/0x210
[  325.549642][ T7566]  ? setup_bdev_super+0x4c1/0x5b0
[  325.549669][ T7566]  get_tree_bdev_flags+0x431/0x4f0
[  325.549692][ T7566]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.549716][ T7566]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.549737][ T7566]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  325.549770][ T7566]  gfs2_get_tree+0x51/0x1e0
[  325.549798][ T7566]  vfs_get_tree+0x92/0x2a0
[  325.549823][ T7566]  do_new_mount+0x341/0xd30
[  325.549840][ T7566]  ? apparmor_capable+0x126/0x170
[  325.549870][ T7566]  ? __pfx_do_new_mount+0x10/0x10
[  325.549889][ T7566]  ? ns_capable+0x89/0xe0
[  325.549913][ T7566]  ? user_path_at+0xd4/0x160
[  325.549938][ T7566]  ? user_path_at+0xd4/0x160
[  325.549960][ T7566]  __se_sys_mount+0x31d/0x420
[  325.549985][ T7566]  ? __pfx___se_sys_mount+0x10/0x10
[  325.550010][ T7566]  ? __x64_sys_mount+0x20/0xc0
[  325.550028][ T7566]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.550048][ T7566]  do_syscall_64+0x15f/0xf80
[  325.550071][ T7566]  ? trace_irq_disable+0x3b/0x140
[  325.550094][ T7566]  ? clear_bhb_loop+0x40/0x90
[  325.550116][ T7566]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.550134][ T7566] RIP: 0033:0x7fda0394b5ca
[  325.550151][ T7566] 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
[  325.550166][ T7566] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.550186][ T7566] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  325.550200][ T7566] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  325.550212][ T7566] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  325.550224][ T7566] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  325.550236][ T7566] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  325.550266][ T7566]  </TASK>
[  325.550292][ T7566] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.550306][ T7566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  325.845035][ T7570] loop4: detected capacity change from 0 to 32768
[  325.910488][ T7570] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
2026/05/01 04:10:02 executed programs: 249
[  325.910511][ T7570] CPU: 0 UID: 0 PID: 7570 Comm: syz.4.252 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  325.910532][ T7570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  325.910539][ T7570] Call Trace:
[  325.910543][ T7570]  <TASK>
[  325.910548][ T7570]  dump_stack_lvl+0xe8/0x150
[  325.910567][ T7570]  sysfs_create_dir_ns+0x271/0x2a0
[  325.910578][ T7570]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  325.910592][ T7570]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  325.910604][ T7570]  ? rt_spin_unlock+0x160/0x200
[  325.910617][ T7570]  kobject_add_internal+0x631/0xd10
[  325.910632][ T7570]  kobject_init_and_add+0x12b/0x1a0
[  325.910654][ T7570]  ? __pfx_kobject_init_and_add+0x10/0x10
[  325.910672][ T7570]  ? __raw_spin_lock_init+0x45/0x100
[  325.910695][ T7570]  ? __init_swait_queue_head+0xa9/0x150
[  325.910720][ T7570]  gfs2_sys_fs_add+0x257/0x480
[  325.910743][ T7570]  ? is_dynamic_key+0x1ac/0x1c0
[  325.910767][ T7570]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  325.910794][ T7570]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  325.910817][ T7570]  gfs2_fill_super+0x141c/0x2220
[  325.910840][ T7570]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.910852][ T7570]  ? rt_spin_unlock+0x14f/0x200
[  325.910866][ T7570]  ? sb_set_blocksize+0x11b/0x210
[  325.910883][ T7570]  ? setup_bdev_super+0x4c1/0x5b0
[  325.910898][ T7570]  get_tree_bdev_flags+0x431/0x4f0
[  325.910912][ T7570]  ? __pfx_gfs2_fill_super+0x10/0x10
[  325.910925][ T7570]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  325.910937][ T7570]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  325.910955][ T7570]  gfs2_get_tree+0x51/0x1e0
[  325.910971][ T7570]  vfs_get_tree+0x92/0x2a0
[  325.910985][ T7570]  do_new_mount+0x341/0xd30
[  325.910994][ T7570]  ? apparmor_capable+0x126/0x170
[  325.911013][ T7570]  ? __pfx_do_new_mount+0x10/0x10
[  325.911023][ T7570]  ? ns_capable+0x89/0xe0
[  325.911037][ T7570]  ? user_path_at+0xd4/0x160
[  325.911050][ T7570]  ? user_path_at+0xd4/0x160
[  325.911063][ T7570]  __se_sys_mount+0x31d/0x420
[  325.911076][ T7570]  ? __pfx___se_sys_mount+0x10/0x10
[  325.911089][ T7570]  ? __x64_sys_mount+0x20/0xc0
[  325.911100][ T7570]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.911112][ T7570]  do_syscall_64+0x15f/0xf80
[  325.911126][ T7570]  ? trace_irq_disable+0x3b/0x140
[  325.911140][ T7570]  ? clear_bhb_loop+0x40/0x90
[  325.911152][ T7570]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  325.911162][ T7570] RIP: 0033:0x7f9375c8b5ca
[  325.911173][ T7570] 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
[  325.911183][ T7570] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  325.911194][ T7570] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  325.911202][ T7570] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  325.911209][ T7570] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  325.911215][ T7570] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  325.911221][ T7570] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  325.911237][ T7570]  </TASK>
[  325.913311][ T7570] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  325.913331][ T7570] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.318388][ T7576] loop1: detected capacity change from 0 to 32768
[  326.366155][ T7576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.366178][ T7576] CPU: 0 UID: 0 PID: 7576 Comm: syz.1.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.366199][ T7576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  326.366210][ T7576] Call Trace:
[  326.366221][ T7576]  <TASK>
[  326.366229][ T7576]  dump_stack_lvl+0xe8/0x150
[  326.366257][ T7576]  sysfs_create_dir_ns+0x271/0x2a0
[  326.366278][ T7576]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  326.366307][ T7576]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.366328][ T7576]  ? rt_spin_unlock+0x160/0x200
[  326.366349][ T7576]  kobject_add_internal+0x631/0xd10
[  326.366374][ T7576]  kobject_init_and_add+0x12b/0x1a0
[  326.366396][ T7576]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.366414][ T7576]  ? __raw_spin_lock_init+0x45/0x100
[  326.366437][ T7576]  ? __init_swait_queue_head+0xa9/0x150
[  326.366463][ T7576]  gfs2_sys_fs_add+0x257/0x480
[  326.366480][ T7576]  ? is_dynamic_key+0x1ac/0x1c0
[  326.366503][ T7576]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.366530][ T7576]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.366569][ T7576]  gfs2_fill_super+0x141c/0x2220
[  326.366607][ T7576]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.366626][ T7576]  ? rt_spin_unlock+0x14f/0x200
[  326.366650][ T7576]  ? sb_set_blocksize+0x11b/0x210
[  326.366676][ T7576]  ? setup_bdev_super+0x4c1/0x5b0
[  326.366701][ T7576]  get_tree_bdev_flags+0x431/0x4f0
[  326.366724][ T7576]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.366747][ T7576]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.366766][ T7576]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  326.366798][ T7576]  gfs2_get_tree+0x51/0x1e0
[  326.366825][ T7576]  vfs_get_tree+0x92/0x2a0
[  326.366849][ T7576]  do_new_mount+0x341/0xd30
[  326.366865][ T7576]  ? apparmor_capable+0x126/0x170
[  326.366896][ T7576]  ? __pfx_do_new_mount+0x10/0x10
[  326.366914][ T7576]  ? ns_capable+0x89/0xe0
[  326.366937][ T7576]  ? user_path_at+0xd4/0x160
[  326.366960][ T7576]  ? user_path_at+0xd4/0x160
[  326.366982][ T7576]  __se_sys_mount+0x31d/0x420
[  326.367006][ T7576]  ? __pfx___se_sys_mount+0x10/0x10
[  326.367031][ T7576]  ? __x64_sys_mount+0x20/0xc0
[  326.367049][ T7576]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.367069][ T7576]  do_syscall_64+0x15f/0xf80
[  326.367108][ T7576]  ? trace_irq_disable+0x3b/0x140
[  326.367130][ T7576]  ? clear_bhb_loop+0x40/0x90
[  326.367152][ T7576]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.367170][ T7576] RIP: 0033:0x7fa3dbb3b5ca
[  326.367189][ T7576] 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
[  326.367204][ T7576] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.367225][ T7576] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  326.367238][ T7576] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  326.367251][ T7576] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  326.367263][ T7576] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  326.367275][ T7576] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  326.367304][ T7576]  </TASK>
[  326.367343][ T7576] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.367357][ T7576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  326.768203][ T7582] loop0: detected capacity change from 0 to 32768
[  326.794820][ T7582] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  326.794842][ T7582] CPU: 0 UID: 0 PID: 7582 Comm: syz.0.255 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  326.794863][ T7582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  326.794874][ T7582] Call Trace:
[  326.794881][ T7582]  <TASK>
[  326.794889][ T7582]  dump_stack_lvl+0xe8/0x150
[  326.794919][ T7582]  sysfs_create_dir_ns+0x271/0x2a0
[  326.794939][ T7582]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  326.794962][ T7582]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  326.794984][ T7582]  ? rt_spin_unlock+0x160/0x200
[  326.795006][ T7582]  kobject_add_internal+0x631/0xd10
[  326.795032][ T7582]  kobject_init_and_add+0x12b/0x1a0
[  326.795064][ T7582]  ? __pfx_kobject_init_and_add+0x10/0x10
[  326.795085][ T7582]  ? __raw_spin_lock_init+0x45/0x100
[  326.795110][ T7582]  ? __init_swait_queue_head+0xa9/0x150
[  326.795137][ T7582]  gfs2_sys_fs_add+0x257/0x480
[  326.795158][ T7582]  ? is_dynamic_key+0x1ac/0x1c0
[  326.795183][ T7582]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  326.795211][ T7582]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  326.795251][ T7582]  gfs2_fill_super+0x141c/0x2220
[  326.795289][ T7582]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.795311][ T7582]  ? rt_spin_unlock+0x14f/0x200
[  326.795335][ T7582]  ? sb_set_blocksize+0x11b/0x210
[  326.795360][ T7582]  ? setup_bdev_super+0x4c1/0x5b0
[  326.795383][ T7582]  get_tree_bdev_flags+0x431/0x4f0
[  326.795404][ T7582]  ? __pfx_gfs2_fill_super+0x10/0x10
[  326.795426][ T7582]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  326.795445][ T7582]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  326.795476][ T7582]  gfs2_get_tree+0x51/0x1e0
[  326.795503][ T7582]  vfs_get_tree+0x92/0x2a0
[  326.795526][ T7582]  do_new_mount+0x341/0xd30
[  326.795541][ T7582]  ? apparmor_capable+0x126/0x170
[  326.795569][ T7582]  ? __pfx_do_new_mount+0x10/0x10
[  326.795591][ T7582]  ? ns_capable+0x89/0xe0
[  326.795613][ T7582]  ? user_path_at+0xd4/0x160
[  326.795637][ T7582]  ? user_path_at+0xd4/0x160
[  326.795658][ T7582]  __se_sys_mount+0x31d/0x420
[  326.795681][ T7582]  ? __pfx___se_sys_mount+0x10/0x10
[  326.795701][ T7582]  ? __x64_sys_mount+0x20/0xc0
[  326.795716][ T7582]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.795735][ T7582]  do_syscall_64+0x15f/0xf80
[  326.795756][ T7582]  ? trace_irq_disable+0x3b/0x140
[  326.795777][ T7582]  ? clear_bhb_loop+0x40/0x90
[  326.795797][ T7582]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  326.795813][ T7582] RIP: 0033:0x7fa65a4db5ca
[  326.795828][ T7582] 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
[  326.795843][ T7582] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  326.795861][ T7582] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  326.795873][ T7582] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  326.795885][ T7582] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  326.795896][ T7582] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  326.795908][ T7582] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  326.795935][ T7582]  </TASK>
[  326.795960][ T7582] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  326.795974][ T7582] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  327.176119][ T7580] loop5: detected capacity change from 0 to 32768
[  327.253898][ T7580] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  327.253920][ T7580] CPU: 1 UID: 0 PID: 7580 Comm: syz.5.254 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  327.253940][ T7580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  327.253951][ T7580] Call Trace:
[  327.253958][ T7580]  <TASK>
[  327.253966][ T7580]  dump_stack_lvl+0xe8/0x150
[  327.253996][ T7580]  sysfs_create_dir_ns+0x271/0x2a0
[  327.254016][ T7580]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  327.254040][ T7580]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  327.254062][ T7580]  ? rt_spin_unlock+0x160/0x200
[  327.254085][ T7580]  kobject_add_internal+0x631/0xd10
[  327.254112][ T7580]  kobject_init_and_add+0x12b/0x1a0
[  327.254136][ T7580]  ? __pfx_kobject_init_and_add+0x10/0x10
[  327.254157][ T7580]  ? __raw_spin_lock_init+0x45/0x100
[  327.254180][ T7580]  ? __init_swait_queue_head+0xa9/0x150
[  327.254206][ T7580]  gfs2_sys_fs_add+0x257/0x480
[  327.254225][ T7580]  ? is_dynamic_key+0x1ac/0x1c0
[  327.254256][ T7580]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  327.254286][ T7580]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  327.254323][ T7580]  gfs2_fill_super+0x141c/0x2220
[  327.254363][ T7580]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.254385][ T7580]  ? rt_spin_unlock+0x14f/0x200
[  327.254409][ T7580]  ? sb_set_blocksize+0x11b/0x210
[  327.254435][ T7580]  ? setup_bdev_super+0x4c1/0x5b0
[  327.254462][ T7580]  get_tree_bdev_flags+0x431/0x4f0
[  327.254485][ T7580]  ? __pfx_gfs2_fill_super+0x10/0x10
[  327.254509][ T7580]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  327.254529][ T7580]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  327.254562][ T7580]  gfs2_get_tree+0x51/0x1e0
[  327.254589][ T7580]  vfs_get_tree+0x92/0x2a0
[  327.254615][ T7580]  do_new_mount+0x341/0xd30
[  327.254631][ T7580]  ? apparmor_capable+0x126/0x170
[  327.254662][ T7580]  ? __pfx_do_new_mount+0x10/0x10
[  327.254680][ T7580]  ? ns_capable+0x89/0xe0
[  327.254705][ T7580]  ? user_path_at+0xd4/0x160
[  327.254729][ T7580]  ? user_path_at+0xd4/0x160
[  327.254751][ T7580]  __se_sys_mount+0x31d/0x420
[  327.254776][ T7580]  ? __pfx___se_sys_mount+0x10/0x10
[  327.254800][ T7580]  ? __x64_sys_mount+0x20/0xc0
[  327.254823][ T7580]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.254843][ T7580]  do_syscall_64+0x15f/0xf80
[  327.254867][ T7580]  ? trace_irq_disable+0x3b/0x140
[  327.254894][ T7580]  ? clear_bhb_loop+0x40/0x90
[  327.254916][ T7580]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  327.254933][ T7580] RIP: 0033:0x7fcd1d0cb5ca
[  327.254952][ T7580] 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
[  327.254968][ T7580] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  327.254988][ T7580] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  327.255001][ T7580] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  327.255013][ T7580] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  327.255026][ T7580] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  327.255038][ T7580] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  327.255067][ T7580]  </TASK>
[  327.255093][ T7580] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  327.255108][ T7580] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  328.987166][ T7588] loop2: detected capacity change from 0 to 32768
[  329.004926][ T7588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  329.004949][ T7588] CPU: 0 UID: 0 PID: 7588 Comm: syz.2.256 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  329.004971][ T7588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  329.004982][ T7588] Call Trace:
[  329.004990][ T7588]  <TASK>
[  329.004997][ T7588]  dump_stack_lvl+0xe8/0x150
[  329.005027][ T7588]  sysfs_create_dir_ns+0x271/0x2a0
[  329.005047][ T7588]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  329.005070][ T7588]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  329.005091][ T7588]  ? rt_spin_unlock+0x160/0x200
[  329.005113][ T7588]  kobject_add_internal+0x631/0xd10
[  329.005136][ T7588]  kobject_init_and_add+0x12b/0x1a0
[  329.005160][ T7588]  ? __pfx_kobject_init_and_add+0x10/0x10
[  329.005180][ T7588]  ? __raw_spin_lock_init+0x45/0x100
[  329.005210][ T7588]  ? __init_swait_queue_head+0xa9/0x150
[  329.005241][ T7588]  gfs2_sys_fs_add+0x257/0x480
[  329.005262][ T7588]  ? is_dynamic_key+0x1ac/0x1c0
[  329.005298][ T7588]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  329.005328][ T7588]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  329.005367][ T7588]  gfs2_fill_super+0x141c/0x2220
[  329.005409][ T7588]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.005431][ T7588]  ? rt_spin_unlock+0x14f/0x200
[  329.005455][ T7588]  ? sb_set_blocksize+0x11b/0x210
[  329.005482][ T7588]  ? setup_bdev_super+0x4c1/0x5b0
[  329.005507][ T7588]  get_tree_bdev_flags+0x431/0x4f0
[  329.005531][ T7588]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.005553][ T7588]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  329.005574][ T7588]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  329.005606][ T7588]  gfs2_get_tree+0x51/0x1e0
[  329.005632][ T7588]  vfs_get_tree+0x92/0x2a0
[  329.005656][ T7588]  do_new_mount+0x341/0xd30
[  329.005673][ T7588]  ? apparmor_capable+0x126/0x170
[  329.005704][ T7588]  ? __pfx_do_new_mount+0x10/0x10
[  329.005722][ T7588]  ? ns_capable+0x89/0xe0
[  329.005746][ T7588]  ? user_path_at+0xd4/0x160
[  329.005770][ T7588]  ? user_path_at+0xd4/0x160
[  329.005792][ T7588]  __se_sys_mount+0x31d/0x420
[  329.005816][ T7588]  ? __pfx___se_sys_mount+0x10/0x10
[  329.005847][ T7588]  ? __x64_sys_mount+0x20/0xc0
[  329.005865][ T7588]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.005885][ T7588]  do_syscall_64+0x15f/0xf80
[  329.005907][ T7588]  ? trace_irq_disable+0x3b/0x140
[  329.005930][ T7588]  ? clear_bhb_loop+0x40/0x90
[  329.005952][ T7588]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.005970][ T7588] RIP: 0033:0x7fda0394b5ca
[  329.005987][ T7588] 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
[  329.006003][ T7588] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  329.006022][ T7588] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  329.006035][ T7588] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  329.006047][ T7588] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  329.006059][ T7588] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  329.006070][ T7588] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  329.006097][ T7588]  </TASK>
[  329.006133][ T7588] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  329.006147][ T7588] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  329.044465][ T7590] loop4: detected capacity change from 0 to 32768
[  329.159032][ T7590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  329.159054][ T7590] CPU: 0 UID: 0 PID: 7590 Comm: syz.4.257 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  329.159075][ T7590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  329.159086][ T7590] Call Trace:
[  329.159093][ T7590]  <TASK>
[  329.159100][ T7590]  dump_stack_lvl+0xe8/0x150
[  329.159128][ T7590]  sysfs_create_dir_ns+0x271/0x2a0
[  329.159147][ T7590]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  329.159170][ T7590]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  329.159191][ T7590]  ? rt_spin_unlock+0x160/0x200
[  329.159212][ T7590]  kobject_add_internal+0x631/0xd10
[  329.159237][ T7590]  kobject_init_and_add+0x12b/0x1a0
[  329.159260][ T7590]  ? __pfx_kobject_init_and_add+0x10/0x10
[  329.159280][ T7590]  ? __raw_spin_lock_init+0x45/0x100
[  329.159304][ T7590]  ? __init_swait_queue_head+0xa9/0x150
[  329.159330][ T7590]  gfs2_sys_fs_add+0x257/0x480
[  329.159349][ T7590]  ? is_dynamic_key+0x1ac/0x1c0
[  329.159372][ T7590]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  329.159400][ T7590]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  329.159436][ T7590]  gfs2_fill_super+0x141c/0x2220
[  329.159474][ T7590]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.159496][ T7590]  ? rt_spin_unlock+0x14f/0x200
[  329.159518][ T7590]  ? sb_set_blocksize+0x11b/0x210
[  329.159546][ T7590]  ? setup_bdev_super+0x4c1/0x5b0
[  329.159571][ T7590]  get_tree_bdev_flags+0x431/0x4f0
[  329.159593][ T7590]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.159616][ T7590]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  329.159635][ T7590]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  329.159666][ T7590]  gfs2_get_tree+0x51/0x1e0
[  329.159692][ T7590]  vfs_get_tree+0x92/0x2a0
[  329.159715][ T7590]  do_new_mount+0x341/0xd30
[  329.159731][ T7590]  ? apparmor_capable+0x126/0x170
[  329.159761][ T7590]  ? __pfx_do_new_mount+0x10/0x10
[  329.159778][ T7590]  ? ns_capable+0x89/0xe0
[  329.159802][ T7590]  ? user_path_at+0xd4/0x160
[  329.159831][ T7590]  ? user_path_at+0xd4/0x160
[  329.159856][ T7590]  __se_sys_mount+0x31d/0x420
[  329.159878][ T7590]  ? __pfx___se_sys_mount+0x10/0x10
[  329.159902][ T7590]  ? __x64_sys_mount+0x20/0xc0
[  329.159919][ T7590]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.159937][ T7590]  do_syscall_64+0x15f/0xf80
[  329.159959][ T7590]  ? trace_irq_disable+0x3b/0x140
[  329.159982][ T7590]  ? clear_bhb_loop+0x40/0x90
[  329.160003][ T7590]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.160021][ T7590] RIP: 0033:0x7f9375c8b5ca
[  329.160038][ T7590] 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
[  329.160053][ T7590] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  329.160072][ T7590] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  329.160084][ T7590] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  329.160097][ T7590] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  329.160109][ T7590] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  329.160120][ T7590] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  329.160148][ T7590]  </TASK>
[  329.160182][ T7590] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  329.160196][ T7590] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  329.548303][ T7596] loop1: detected capacity change from 0 to 32768
[  329.588613][ T7596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  329.588636][ T7596] CPU: 0 UID: 0 PID: 7596 Comm: syz.1.258 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  329.588657][ T7596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  329.588669][ T7596] Call Trace:
[  329.588676][ T7596]  <TASK>
[  329.588684][ T7596]  dump_stack_lvl+0xe8/0x150
[  329.588713][ T7596]  sysfs_create_dir_ns+0x271/0x2a0
[  329.588732][ T7596]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  329.588766][ T7596]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  329.588788][ T7596]  ? rt_spin_unlock+0x160/0x200
[  329.588811][ T7596]  kobject_add_internal+0x631/0xd10
[  329.588835][ T7596]  kobject_init_and_add+0x12b/0x1a0
[  329.588858][ T7596]  ? __pfx_kobject_init_and_add+0x10/0x10
[  329.588877][ T7596]  ? __raw_spin_lock_init+0x45/0x100
[  329.588901][ T7596]  ? __init_swait_queue_head+0xa9/0x150
[  329.588927][ T7596]  gfs2_sys_fs_add+0x257/0x480
[  329.588946][ T7596]  ? is_dynamic_key+0x1ac/0x1c0
[  329.588971][ T7596]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  329.588998][ T7596]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  329.589034][ T7596]  gfs2_fill_super+0x141c/0x2220
[  329.589072][ T7596]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.589094][ T7596]  ? rt_spin_unlock+0x14f/0x200
[  329.589118][ T7596]  ? sb_set_blocksize+0x11b/0x210
[  329.589143][ T7596]  ? setup_bdev_super+0x4c1/0x5b0
[  329.589168][ T7596]  get_tree_bdev_flags+0x431/0x4f0
[  329.589190][ T7596]  ? __pfx_gfs2_fill_super+0x10/0x10
[  329.589213][ T7596]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  329.589233][ T7596]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  329.589263][ T7596]  gfs2_get_tree+0x51/0x1e0
[  329.589289][ T7596]  vfs_get_tree+0x92/0x2a0
[  329.589312][ T7596]  do_new_mount+0x341/0xd30
[  329.589328][ T7596]  ? apparmor_capable+0x126/0x170
[  329.589358][ T7596]  ? __pfx_do_new_mount+0x10/0x10
[  329.589375][ T7596]  ? ns_capable+0x89/0xe0
[  329.589398][ T7596]  ? user_path_at+0xd4/0x160
[  329.589421][ T7596]  ? user_path_at+0xd4/0x160
[  329.589443][ T7596]  __se_sys_mount+0x31d/0x420
[  329.589466][ T7596]  ? __pfx___se_sys_mount+0x10/0x10
[  329.589490][ T7596]  ? __x64_sys_mount+0x20/0xc0
[  329.589507][ T7596]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.589525][ T7596]  do_syscall_64+0x15f/0xf80
[  329.589546][ T7596]  ? trace_irq_disable+0x3b/0x140
[  329.589567][ T7596]  ? clear_bhb_loop+0x40/0x90
[  329.589588][ T7596]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  329.589606][ T7596] RIP: 0033:0x7fa3dbb3b5ca
[  329.589622][ T7596] 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
[  329.589638][ T7596] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  329.589658][ T7596] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  329.589670][ T7596] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  329.589682][ T7596] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  329.589694][ T7596] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  329.589705][ T7596] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  329.589734][ T7596]  </TASK>
[  329.589840][ T7596] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  329.589854][ T7596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.103111][ T7600] loop0: detected capacity change from 0 to 32768
[  330.190986][ T7600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  330.191008][ T7600] CPU: 0 UID: 0 PID: 7600 Comm: syz.0.259 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  330.191030][ T7600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  330.191040][ T7600] Call Trace:
[  330.191047][ T7600]  <TASK>
[  330.191056][ T7600]  dump_stack_lvl+0xe8/0x150
[  330.191085][ T7600]  sysfs_create_dir_ns+0x271/0x2a0
[  330.191105][ T7600]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  330.191129][ T7600]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  330.191150][ T7600]  ? rt_spin_unlock+0x160/0x200
[  330.191173][ T7600]  kobject_add_internal+0x631/0xd10
[  330.191199][ T7600]  kobject_init_and_add+0x12b/0x1a0
[  330.191227][ T7600]  ? __pfx_kobject_init_and_add+0x10/0x10
[  330.191247][ T7600]  ? __raw_spin_lock_init+0x45/0x100
[  330.191271][ T7600]  ? __init_swait_queue_head+0xa9/0x150
[  330.191298][ T7600]  gfs2_sys_fs_add+0x257/0x480
[  330.191318][ T7600]  ? is_dynamic_key+0x1ac/0x1c0
[  330.191344][ T7600]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  330.191372][ T7600]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  330.191411][ T7600]  gfs2_fill_super+0x141c/0x2220
[  330.191451][ T7600]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.191474][ T7600]  ? rt_spin_unlock+0x14f/0x200
[  330.191498][ T7600]  ? sb_set_blocksize+0x11b/0x210
[  330.191525][ T7600]  ? setup_bdev_super+0x4c1/0x5b0
[  330.191551][ T7600]  get_tree_bdev_flags+0x431/0x4f0
[  330.191575][ T7600]  ? __pfx_gfs2_fill_super+0x10/0x10
[  330.191598][ T7600]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  330.191618][ T7600]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  330.191650][ T7600]  gfs2_get_tree+0x51/0x1e0
[  330.191677][ T7600]  vfs_get_tree+0x92/0x2a0
[  330.191702][ T7600]  do_new_mount+0x341/0xd30
[  330.191720][ T7600]  ? apparmor_capable+0x126/0x170
[  330.191758][ T7600]  ? __pfx_do_new_mount+0x10/0x10
[  330.191776][ T7600]  ? ns_capable+0x89/0xe0
[  330.191800][ T7600]  ? user_path_at+0xd4/0x160
[  330.191825][ T7600]  ? user_path_at+0xd4/0x160
[  330.191847][ T7600]  __se_sys_mount+0x31d/0x420
[  330.191872][ T7600]  ? __pfx___se_sys_mount+0x10/0x10
[  330.191896][ T7600]  ? __x64_sys_mount+0x20/0xc0
[  330.191914][ T7600]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.191934][ T7600]  do_syscall_64+0x15f/0xf80
[  330.191957][ T7600]  ? trace_irq_disable+0x3b/0x140
[  330.191980][ T7600]  ? clear_bhb_loop+0x40/0x90
[  330.191998][ T7600]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  330.192016][ T7600] RIP: 0033:0x7fa65a4db5ca
[  330.192034][ T7600] 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
[  330.192050][ T7600] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  330.192069][ T7600] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  330.192083][ T7600] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  330.192096][ T7600] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  330.192109][ T7600] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  330.192120][ T7600] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  330.192151][ T7600]  </TASK>
[  330.206358][ T7600] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  330.206377][ T7600] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  330.646732][ T7602] loop5: detected capacity change from 0 to 32768
2026/05/01 04:10:07 executed programs: 258
[  330.822131][ T7602] workqueue: Failed to create a rescuer kthread for wq "gfs2-delete/syz:syz": -EINTR
[  331.568071][ T7610] loop4: detected capacity change from 0 to 32768
[  331.599786][ T7610] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  331.599806][ T7610] CPU: 1 UID: 0 PID: 7610 Comm: syz.4.262 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  331.599825][ T7610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  331.599833][ T7610] Call Trace:
[  331.599839][ T7610]  <TASK>
[  331.599845][ T7610]  dump_stack_lvl+0xe8/0x150
[  331.599878][ T7610]  sysfs_create_dir_ns+0x271/0x2a0
[  331.599893][ T7610]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  331.599910][ T7610]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  331.599926][ T7610]  ? rt_spin_unlock+0x160/0x200
[  331.599943][ T7610]  kobject_add_internal+0x631/0xd10
[  331.599962][ T7610]  kobject_init_and_add+0x12b/0x1a0
[  331.599979][ T7610]  ? __pfx_kobject_init_and_add+0x10/0x10
[  331.599993][ T7610]  ? __raw_spin_lock_init+0x45/0x100
[  331.600011][ T7610]  ? __init_swait_queue_head+0xa9/0x150
[  331.600031][ T7610]  gfs2_sys_fs_add+0x257/0x480
[  331.600046][ T7610]  ? is_dynamic_key+0x1ac/0x1c0
[  331.600066][ T7610]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  331.600086][ T7610]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  331.600115][ T7610]  gfs2_fill_super+0x141c/0x2220
[  331.600145][ T7610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.600165][ T7610]  ? rt_spin_unlock+0x14f/0x200
[  331.600183][ T7610]  ? sb_set_blocksize+0x11b/0x210
[  331.600204][ T7610]  ? setup_bdev_super+0x4c1/0x5b0
[  331.600223][ T7610]  get_tree_bdev_flags+0x431/0x4f0
[  331.600240][ T7610]  ? __pfx_gfs2_fill_super+0x10/0x10
[  331.600258][ T7610]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  331.600273][ T7610]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  331.600300][ T7610]  gfs2_get_tree+0x51/0x1e0
[  331.600323][ T7610]  vfs_get_tree+0x92/0x2a0
[  331.600340][ T7610]  do_new_mount+0x341/0xd30
[  331.600353][ T7610]  ? apparmor_capable+0x126/0x170
[  331.600377][ T7610]  ? __pfx_do_new_mount+0x10/0x10
[  331.600391][ T7610]  ? ns_capable+0x89/0xe0
[  331.600410][ T7610]  ? user_path_at+0xd4/0x160
[  331.600429][ T7610]  ? user_path_at+0xd4/0x160
[  331.600446][ T7610]  __se_sys_mount+0x31d/0x420
[  331.600464][ T7610]  ? __pfx___se_sys_mount+0x10/0x10
[  331.600483][ T7610]  ? __x64_sys_mount+0x20/0xc0
[  331.600496][ T7610]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.600512][ T7610]  do_syscall_64+0x15f/0xf80
[  331.600530][ T7610]  ? trace_irq_disable+0x3b/0x140
[  331.600547][ T7610]  ? clear_bhb_loop+0x40/0x90
[  331.600564][ T7610]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  331.600578][ T7610] RIP: 0033:0x7f9375c8b5ca
[  331.600592][ T7610] 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
[  331.600605][ T7610] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  331.600622][ T7610] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  331.600632][ T7610] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  331.600641][ T7610] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  331.600650][ T7610] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  331.600659][ T7610] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  331.600681][ T7610]  </TASK>
[  331.627803][ T7610] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  331.627824][ T7610] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  332.647530][ T7612] loop2: detected capacity change from 0 to 32768
[  332.676690][ T7612] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  332.676713][ T7612] CPU: 1 UID: 0 PID: 7612 Comm: syz.2.261 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  332.676735][ T7612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  332.676746][ T7612] Call Trace:
[  332.676753][ T7612]  <TASK>
[  332.676761][ T7612]  dump_stack_lvl+0xe8/0x150
[  332.676818][ T7612]  sysfs_create_dir_ns+0x271/0x2a0
[  332.676839][ T7612]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  332.676862][ T7612]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  332.676885][ T7612]  ? rt_spin_unlock+0x160/0x200
[  332.676908][ T7612]  kobject_add_internal+0x631/0xd10
[  332.676934][ T7612]  kobject_init_and_add+0x12b/0x1a0
[  332.676959][ T7612]  ? __pfx_kobject_init_and_add+0x10/0x10
[  332.676979][ T7612]  ? __raw_spin_lock_init+0x45/0x100
[  332.677004][ T7612]  ? __init_swait_queue_head+0xa9/0x150
[  332.677030][ T7612]  gfs2_sys_fs_add+0x257/0x480
[  332.677051][ T7612]  ? is_dynamic_key+0x1ac/0x1c0
[  332.677076][ T7612]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  332.677105][ T7612]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  332.677142][ T7612]  gfs2_fill_super+0x141c/0x2220
[  332.677182][ T7612]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.677204][ T7612]  ? rt_spin_unlock+0x14f/0x200
[  332.677229][ T7612]  ? sb_set_blocksize+0x11b/0x210
[  332.677256][ T7612]  ? setup_bdev_super+0x4c1/0x5b0
[  332.677283][ T7612]  get_tree_bdev_flags+0x431/0x4f0
[  332.677306][ T7612]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.677330][ T7612]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  332.677351][ T7612]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  332.677383][ T7612]  gfs2_get_tree+0x51/0x1e0
[  332.677410][ T7612]  vfs_get_tree+0x92/0x2a0
[  332.677435][ T7612]  do_new_mount+0x341/0xd30
[  332.677452][ T7612]  ? apparmor_capable+0x126/0x170
[  332.677482][ T7612]  ? __pfx_do_new_mount+0x10/0x10
[  332.677501][ T7612]  ? ns_capable+0x89/0xe0
[  332.677525][ T7612]  ? user_path_at+0xd4/0x160
[  332.677544][ T7612]  ? user_path_at+0xd4/0x160
[  332.677562][ T7612]  __se_sys_mount+0x31d/0x420
[  332.677582][ T7612]  ? __pfx___se_sys_mount+0x10/0x10
[  332.677605][ T7612]  ? __x64_sys_mount+0x20/0xc0
[  332.677622][ T7612]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.677640][ T7612]  do_syscall_64+0x15f/0xf80
[  332.677662][ T7612]  ? trace_irq_disable+0x3b/0x140
[  332.677683][ T7612]  ? clear_bhb_loop+0x40/0x90
[  332.677702][ T7612]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.677719][ T7612] RIP: 0033:0x7fda0394b5ca
[  332.677736][ T7612] 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
[  332.677752][ T7612] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  332.677779][ T7612] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  332.677793][ T7612] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  332.677806][ T7612] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  332.677818][ T7612] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  332.677829][ T7612] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  332.677857][ T7612]  </TASK>
[  332.677885][ T7612] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.677900][ T7612] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  332.689282][ T7614] loop1: detected capacity change from 0 to 32768
[  332.802786][ T7614] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  332.802810][ T7614] CPU: 1 UID: 0 PID: 7614 Comm: syz.1.263 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  332.802830][ T7614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  332.802841][ T7614] Call Trace:
[  332.802847][ T7614]  <TASK>
[  332.802855][ T7614]  dump_stack_lvl+0xe8/0x150
[  332.802883][ T7614]  sysfs_create_dir_ns+0x271/0x2a0
[  332.802903][ T7614]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  332.802926][ T7614]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  332.802947][ T7614]  ? rt_spin_unlock+0x160/0x200
[  332.802969][ T7614]  kobject_add_internal+0x631/0xd10
[  332.802995][ T7614]  kobject_init_and_add+0x12b/0x1a0
[  332.803017][ T7614]  ? __pfx_kobject_init_and_add+0x10/0x10
[  332.803037][ T7614]  ? __raw_spin_lock_init+0x45/0x100
[  332.803059][ T7614]  ? __init_swait_queue_head+0xa9/0x150
[  332.803086][ T7614]  gfs2_sys_fs_add+0x257/0x480
[  332.803105][ T7614]  ? is_dynamic_key+0x1ac/0x1c0
[  332.803129][ T7614]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  332.803156][ T7614]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  332.803193][ T7614]  gfs2_fill_super+0x141c/0x2220
[  332.803231][ T7614]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.803252][ T7614]  ? rt_spin_unlock+0x14f/0x200
[  332.803275][ T7614]  ? sb_set_blocksize+0x11b/0x210
[  332.803301][ T7614]  ? setup_bdev_super+0x4c1/0x5b0
[  332.803326][ T7614]  get_tree_bdev_flags+0x431/0x4f0
[  332.803348][ T7614]  ? __pfx_gfs2_fill_super+0x10/0x10
[  332.803370][ T7614]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  332.803390][ T7614]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  332.803425][ T7614]  gfs2_get_tree+0x51/0x1e0
[  332.803451][ T7614]  vfs_get_tree+0x92/0x2a0
[  332.803475][ T7614]  do_new_mount+0x341/0xd30
[  332.803498][ T7614]  ? apparmor_capable+0x126/0x170
[  332.803528][ T7614]  ? __pfx_do_new_mount+0x10/0x10
[  332.803546][ T7614]  ? ns_capable+0x89/0xe0
[  332.803572][ T7614]  ? user_path_at+0xd4/0x160
[  332.803595][ T7614]  ? user_path_at+0xd4/0x160
[  332.803616][ T7614]  __se_sys_mount+0x31d/0x420
[  332.803639][ T7614]  ? __pfx___se_sys_mount+0x10/0x10
[  332.803663][ T7614]  ? __x64_sys_mount+0x20/0xc0
[  332.803680][ T7614]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.803699][ T7614]  do_syscall_64+0x15f/0xf80
[  332.803721][ T7614]  ? trace_irq_disable+0x3b/0x140
[  332.803741][ T7614]  ? clear_bhb_loop+0x40/0x90
[  332.803762][ T7614]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  332.803779][ T7614] RIP: 0033:0x7fa3dbb3b5ca
[  332.803797][ T7614] 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
[  332.803812][ T7614] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  332.803830][ T7614] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  332.803843][ T7614] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  332.803856][ T7614] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  332.803868][ T7614] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  332.803880][ T7614] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  332.803908][ T7614]  </TASK>
[  332.808881][ T7614] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  332.808901][ T7614] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  333.424238][ T7620] loop5: detected capacity change from 0 to 32768
[  333.511936][ T7620] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  333.511960][ T7620] CPU: 1 UID: 0 PID: 7620 Comm: syz.5.264 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  333.511980][ T7620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  333.511991][ T7620] Call Trace:
[  333.511998][ T7620]  <TASK>
[  333.512007][ T7620]  dump_stack_lvl+0xe8/0x150
[  333.512035][ T7620]  sysfs_create_dir_ns+0x271/0x2a0
[  333.512055][ T7620]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  333.512077][ T7620]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  333.512100][ T7620]  ? rt_spin_unlock+0x160/0x200
[  333.512123][ T7620]  kobject_add_internal+0x631/0xd10
[  333.512149][ T7620]  kobject_init_and_add+0x12b/0x1a0
[  333.512173][ T7620]  ? __pfx_kobject_init_and_add+0x10/0x10
[  333.512193][ T7620]  ? __raw_spin_lock_init+0x45/0x100
[  333.512217][ T7620]  ? __init_swait_queue_head+0xa9/0x150
[  333.512247][ T7620]  gfs2_sys_fs_add+0x257/0x480
[  333.512268][ T7620]  ? is_dynamic_key+0x1ac/0x1c0
[  333.512293][ T7620]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  333.512322][ T7620]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  333.512361][ T7620]  gfs2_fill_super+0x141c/0x2220
[  333.512401][ T7620]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.512424][ T7620]  ? rt_spin_unlock+0x14f/0x200
[  333.512448][ T7620]  ? sb_set_blocksize+0x11b/0x210
[  333.512482][ T7620]  ? setup_bdev_super+0x4c1/0x5b0
[  333.512508][ T7620]  get_tree_bdev_flags+0x431/0x4f0
[  333.512532][ T7620]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.512555][ T7620]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  333.512576][ T7620]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  333.512607][ T7620]  gfs2_get_tree+0x51/0x1e0
[  333.512634][ T7620]  vfs_get_tree+0x92/0x2a0
[  333.512658][ T7620]  do_new_mount+0x341/0xd30
[  333.512675][ T7620]  ? apparmor_capable+0x126/0x170
[  333.512705][ T7620]  ? __pfx_do_new_mount+0x10/0x10
[  333.512723][ T7620]  ? ns_capable+0x89/0xe0
[  333.512748][ T7620]  ? user_path_at+0xd4/0x160
[  333.512772][ T7620]  ? user_path_at+0xd4/0x160
[  333.512795][ T7620]  __se_sys_mount+0x31d/0x420
[  333.512819][ T7620]  ? __pfx___se_sys_mount+0x10/0x10
[  333.512841][ T7620]  ? __x64_sys_mount+0x20/0xc0
[  333.512858][ T7620]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.512878][ T7620]  do_syscall_64+0x15f/0xf80
[  333.512900][ T7620]  ? trace_irq_disable+0x3b/0x140
[  333.512924][ T7620]  ? clear_bhb_loop+0x40/0x90
[  333.512946][ T7620]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.512964][ T7620] RIP: 0033:0x7fcd1d0cb5ca
[  333.512982][ T7620] 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
[  333.512998][ T7620] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  333.513019][ T7620] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  333.513033][ T7620] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  333.513046][ T7620] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  333.513058][ T7620] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  333.513069][ T7620] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  333.513098][ T7620]  </TASK>
[  333.513133][ T7620] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  333.513148][ T7620] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  333.680286][ T7622] loop0: detected capacity change from 0 to 32768
[  333.800168][ T7622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  333.800188][ T7622] CPU: 1 UID: 0 PID: 7622 Comm: syz.0.265 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  333.800206][ T7622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  333.800217][ T7622] Call Trace:
[  333.800224][ T7622]  <TASK>
[  333.800232][ T7622]  dump_stack_lvl+0xe8/0x150
[  333.800259][ T7622]  sysfs_create_dir_ns+0x271/0x2a0
[  333.800279][ T7622]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  333.800301][ T7622]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  333.800323][ T7622]  ? rt_spin_unlock+0x160/0x200
[  333.800346][ T7622]  kobject_add_internal+0x631/0xd10
[  333.800371][ T7622]  kobject_init_and_add+0x12b/0x1a0
[  333.800393][ T7622]  ? __pfx_kobject_init_and_add+0x10/0x10
[  333.800413][ T7622]  ? __raw_spin_lock_init+0x45/0x100
[  333.800436][ T7622]  ? __init_swait_queue_head+0xa9/0x150
[  333.800469][ T7622]  gfs2_sys_fs_add+0x257/0x480
[  333.800489][ T7622]  ? is_dynamic_key+0x1ac/0x1c0
[  333.800513][ T7622]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  333.800540][ T7622]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  333.800577][ T7622]  gfs2_fill_super+0x141c/0x2220
[  333.800615][ T7622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.800641][ T7622]  ? rt_spin_unlock+0x14f/0x200
[  333.800661][ T7622]  ? sb_set_blocksize+0x11b/0x210
[  333.800684][ T7622]  ? setup_bdev_super+0x4c1/0x5b0
[  333.800709][ T7622]  get_tree_bdev_flags+0x431/0x4f0
[  333.800732][ T7622]  ? __pfx_gfs2_fill_super+0x10/0x10
[  333.800755][ T7622]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  333.800774][ T7622]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  333.800805][ T7622]  gfs2_get_tree+0x51/0x1e0
[  333.800832][ T7622]  vfs_get_tree+0x92/0x2a0
[  333.800855][ T7622]  do_new_mount+0x341/0xd30
[  333.800871][ T7622]  ? apparmor_capable+0x126/0x170
[  333.800901][ T7622]  ? __pfx_do_new_mount+0x10/0x10
[  333.800919][ T7622]  ? ns_capable+0x89/0xe0
[  333.800942][ T7622]  ? user_path_at+0xd4/0x160
[  333.800965][ T7622]  ? user_path_at+0xd4/0x160
[  333.800986][ T7622]  __se_sys_mount+0x31d/0x420
[  333.801009][ T7622]  ? __pfx___se_sys_mount+0x10/0x10
[  333.801033][ T7622]  ? __x64_sys_mount+0x20/0xc0
[  333.801050][ T7622]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.801069][ T7622]  do_syscall_64+0x15f/0xf80
[  333.801090][ T7622]  ? trace_irq_disable+0x3b/0x140
[  333.801112][ T7622]  ? clear_bhb_loop+0x40/0x90
[  333.801133][ T7622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  333.801151][ T7622] RIP: 0033:0x7fa65a4db5ca
[  333.801168][ 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
[  333.801183][ T7622] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  333.801203][ T7622] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  333.801216][ T7622] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  333.801228][ T7622] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  333.801240][ T7622] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  333.801251][ T7622] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  333.801279][ T7622]  </TASK>
[  333.845874][ 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.
[  333.845895][ T7622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  334.543979][ T7626] loop4: detected capacity change from 0 to 32768
[  334.618428][ T7626] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  334.618451][ T7626] CPU: 0 UID: 0 PID: 7626 Comm: syz.4.266 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  334.618472][ T7626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  334.618483][ T7626] Call Trace:
[  334.618490][ T7626]  <TASK>
[  334.618498][ T7626]  dump_stack_lvl+0xe8/0x150
[  334.618526][ T7626]  sysfs_create_dir_ns+0x271/0x2a0
[  334.618546][ T7626]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  334.618569][ T7626]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  334.618592][ T7626]  ? rt_spin_unlock+0x160/0x200
[  334.618623][ T7626]  kobject_add_internal+0x631/0xd10
[  334.618649][ T7626]  kobject_init_and_add+0x12b/0x1a0
[  334.618673][ T7626]  ? __pfx_kobject_init_and_add+0x10/0x10
[  334.618693][ T7626]  ? __raw_spin_lock_init+0x45/0x100
[  334.618718][ T7626]  ? __init_swait_queue_head+0xa9/0x150
[  334.618745][ T7626]  gfs2_sys_fs_add+0x257/0x480
[  334.618766][ T7626]  ? is_dynamic_key+0x1ac/0x1c0
[  334.618791][ T7626]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  334.618820][ T7626]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  334.618859][ T7626]  gfs2_fill_super+0x141c/0x2220
[  334.618899][ T7626]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.618921][ T7626]  ? rt_spin_unlock+0x14f/0x200
[  334.618946][ T7626]  ? sb_set_blocksize+0x11b/0x210
[  334.618973][ T7626]  ? setup_bdev_super+0x4c1/0x5b0
[  334.619000][ T7626]  get_tree_bdev_flags+0x431/0x4f0
[  334.619023][ T7626]  ? __pfx_gfs2_fill_super+0x10/0x10
[  334.619047][ T7626]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  334.619067][ T7626]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  334.619100][ T7626]  gfs2_get_tree+0x51/0x1e0
[  334.619127][ T7626]  vfs_get_tree+0x92/0x2a0
[  334.619152][ T7626]  do_new_mount+0x341/0xd30
[  334.619169][ T7626]  ? apparmor_capable+0x126/0x170
[  334.619200][ T7626]  ? __pfx_do_new_mount+0x10/0x10
[  334.619218][ T7626]  ? ns_capable+0x89/0xe0
[  334.619242][ T7626]  ? user_path_at+0xd4/0x160
[  334.619267][ T7626]  ? user_path_at+0xd4/0x160
[  334.619289][ T7626]  __se_sys_mount+0x31d/0x420
[  334.619313][ T7626]  ? __pfx___se_sys_mount+0x10/0x10
[  334.619338][ T7626]  ? __x64_sys_mount+0x20/0xc0
[  334.619356][ T7626]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.619376][ T7626]  do_syscall_64+0x15f/0xf80
[  334.619399][ T7626]  ? trace_irq_disable+0x3b/0x140
[  334.619423][ T7626]  ? clear_bhb_loop+0x40/0x90
[  334.619445][ T7626]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  334.619462][ T7626] RIP: 0033:0x7f9375c8b5ca
[  334.619480][ T7626] 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
[  334.619496][ T7626] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  334.619516][ T7626] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  334.619529][ T7626] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  334.619542][ T7626] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  334.619558][ T7626] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  334.619569][ T7626] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  334.619629][ T7626]  </TASK>
[  334.681024][ T7626] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  334.681045][ T7626] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  334.790782][ T5705] Bluetooth: hci5: command 0x0406 tx timeout
[  335.966568][ T7636] loop2: detected capacity change from 0 to 32768
[  335.985175][ T7633] loop1: detected capacity change from 0 to 32768
[  336.002404][ T7636] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.002427][ T7636] CPU: 0 UID: 0 PID: 7636 Comm: syz.2.267 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  336.002449][ T7636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  336.002459][ T7636] Call Trace:
[  336.002467][ T7636]  <TASK>
[  336.002475][ T7636]  dump_stack_lvl+0xe8/0x150
[  336.002511][ T7636]  sysfs_create_dir_ns+0x271/0x2a0
[  336.002533][ T7636]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  336.002556][ T7636]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.002578][ T7636]  ? rt_spin_unlock+0x160/0x200
[  336.002606][ T7636]  kobject_add_internal+0x631/0xd10
[  336.002633][ T7636]  kobject_init_and_add+0x12b/0x1a0
[  336.002656][ T7636]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.002677][ T7636]  ? __raw_spin_lock_init+0x45/0x100
[  336.002702][ T7636]  ? __init_swait_queue_head+0xa9/0x150
[  336.002728][ T7636]  gfs2_sys_fs_add+0x257/0x480
[  336.002747][ T7636]  ? is_dynamic_key+0x1ac/0x1c0
[  336.002773][ T7636]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.002800][ T7636]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.002840][ T7636]  gfs2_fill_super+0x141c/0x2220
[  336.002880][ T7636]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.002902][ T7636]  ? rt_spin_unlock+0x14f/0x200
[  336.002926][ T7636]  ? sb_set_blocksize+0x11b/0x210
[  336.002954][ T7636]  ? setup_bdev_super+0x4c1/0x5b0
[  336.002980][ T7636]  get_tree_bdev_flags+0x431/0x4f0
[  336.003004][ T7636]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.003028][ T7636]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.003049][ T7636]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  336.003082][ T7636]  gfs2_get_tree+0x51/0x1e0
[  336.003109][ T7636]  vfs_get_tree+0x92/0x2a0
[  336.003134][ T7636]  do_new_mount+0x341/0xd30
[  336.003151][ T7636]  ? apparmor_capable+0x126/0x170
[  336.003182][ T7636]  ? __pfx_do_new_mount+0x10/0x10
[  336.003200][ T7636]  ? ns_capable+0x89/0xe0
[  336.003224][ T7636]  ? user_path_at+0xd4/0x160
[  336.003248][ T7636]  ? user_path_at+0xd4/0x160
[  336.003270][ T7636]  __se_sys_mount+0x31d/0x420
[  336.003295][ T7636]  ? __pfx___se_sys_mount+0x10/0x10
[  336.003320][ T7636]  ? __x64_sys_mount+0x20/0xc0
[  336.003338][ T7636]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.003358][ T7636]  do_syscall_64+0x15f/0xf80
[  336.003382][ T7636]  ? trace_irq_disable+0x3b/0x140
[  336.003406][ T7636]  ? clear_bhb_loop+0x40/0x90
[  336.003428][ T7636]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.003447][ T7636] RIP: 0033:0x7fda0394b5ca
[  336.003465][ T7636] 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
[  336.003480][ T7636] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.003506][ T7636] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  336.003520][ T7636] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  336.003532][ T7636] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  336.003544][ T7636] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  336.003556][ T7636] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  336.003585][ T7636]  </TASK>
[  336.003623][ T7636] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.003637][ T7636] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.005471][ T7633] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.005491][ T7633] CPU: 0 UID: 0 PID: 7633 Comm: syz.1.268 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
2026/05/01 04:10:13 executed programs: 265
[  336.005519][ T7633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  336.005530][ T7633] Call Trace:
[  336.005538][ T7633]  <TASK>
[  336.005545][ T7633]  dump_stack_lvl+0xe8/0x150
[  336.005573][ T7633]  sysfs_create_dir_ns+0x271/0x2a0
[  336.005593][ T7633]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  336.005616][ T7633]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.005639][ T7633]  ? rt_spin_unlock+0x160/0x200
[  336.005662][ T7633]  kobject_add_internal+0x631/0xd10
[  336.005689][ T7633]  kobject_init_and_add+0x12b/0x1a0
[  336.005713][ T7633]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.005732][ T7633]  ? __raw_spin_lock_init+0x45/0x100
[  336.005756][ T7633]  ? __init_swait_queue_head+0xa9/0x150
[  336.005783][ T7633]  gfs2_sys_fs_add+0x257/0x480
[  336.005804][ T7633]  ? is_dynamic_key+0x1ac/0x1c0
[  336.005829][ T7633]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.005855][ T7633]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.005891][ T7633]  gfs2_fill_super+0x141c/0x2220
[  336.005929][ T7633]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.005952][ T7633]  ? rt_spin_unlock+0x14f/0x200
[  336.005976][ T7633]  ? sb_set_blocksize+0x11b/0x210
[  336.006003][ T7633]  ? setup_bdev_super+0x4c1/0x5b0
[  336.006029][ T7633]  get_tree_bdev_flags+0x431/0x4f0
[  336.006052][ T7633]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.006076][ T7633]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.006098][ T7633]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  336.006129][ T7633]  gfs2_get_tree+0x51/0x1e0
[  336.006156][ T7633]  vfs_get_tree+0x92/0x2a0
[  336.006181][ T7633]  do_new_mount+0x341/0xd30
[  336.006198][ T7633]  ? apparmor_capable+0x126/0x170
[  336.006228][ T7633]  ? __pfx_do_new_mount+0x10/0x10
[  336.006246][ T7633]  ? ns_capable+0x89/0xe0
[  336.006271][ T7633]  ? user_path_at+0xd4/0x160
[  336.006294][ T7633]  ? user_path_at+0xd4/0x160
[  336.006317][ T7633]  __se_sys_mount+0x31d/0x420
[  336.006341][ T7633]  ? __pfx___se_sys_mount+0x10/0x10
[  336.006366][ T7633]  ? __x64_sys_mount+0x20/0xc0
[  336.006384][ T7633]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.006404][ T7633]  do_syscall_64+0x15f/0xf80
[  336.006427][ T7633]  ? trace_irq_disable+0x3b/0x140
[  336.006451][ T7633]  ? clear_bhb_loop+0x40/0x90
[  336.006473][ T7633]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.006492][ T7633] RIP: 0033:0x7fa3dbb3b5ca
[  336.006516][ T7633] 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
[  336.006531][ T7633] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.006550][ T7633] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  336.006564][ T7633] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  336.006577][ T7633] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  336.006589][ T7633] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  336.006601][ T7633] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  336.006631][ T7633]  </TASK>
[  336.006657][ T7633] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.006671][ T7633] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  336.769773][ T7640] loop5: detected capacity change from 0 to 32768
[  336.812827][ T7640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  336.812847][ T7640] CPU: 0 UID: 0 PID: 7640 Comm: syz.5.269 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  336.812864][ T7640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  336.812873][ T7640] Call Trace:
[  336.812879][ T7640]  <TASK>
[  336.812885][ T7640]  dump_stack_lvl+0xe8/0x150
[  336.812908][ T7640]  sysfs_create_dir_ns+0x271/0x2a0
[  336.812924][ T7640]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  336.812942][ T7640]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  336.812959][ T7640]  ? rt_spin_unlock+0x160/0x200
[  336.812976][ T7640]  kobject_add_internal+0x631/0xd10
[  336.812996][ T7640]  kobject_init_and_add+0x12b/0x1a0
[  336.813014][ T7640]  ? __pfx_kobject_init_and_add+0x10/0x10
[  336.813028][ T7640]  ? __raw_spin_lock_init+0x45/0x100
[  336.813048][ T7640]  ? __init_swait_queue_head+0xa9/0x150
[  336.813069][ T7640]  gfs2_sys_fs_add+0x257/0x480
[  336.813085][ T7640]  ? is_dynamic_key+0x1ac/0x1c0
[  336.813104][ T7640]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  336.813125][ T7640]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  336.813155][ T7640]  gfs2_fill_super+0x141c/0x2220
[  336.813186][ T7640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.813204][ T7640]  ? rt_spin_unlock+0x14f/0x200
[  336.813222][ T7640]  ? sb_set_blocksize+0x11b/0x210
[  336.813243][ T7640]  ? setup_bdev_super+0x4c1/0x5b0
[  336.813263][ T7640]  get_tree_bdev_flags+0x431/0x4f0
[  336.813281][ T7640]  ? __pfx_gfs2_fill_super+0x10/0x10
[  336.813298][ T7640]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  336.813313][ T7640]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  336.813338][ T7640]  gfs2_get_tree+0x51/0x1e0
[  336.813357][ T7640]  vfs_get_tree+0x92/0x2a0
[  336.813376][ T7640]  do_new_mount+0x341/0xd30
[  336.813389][ T7640]  ? apparmor_capable+0x126/0x170
[  336.813414][ T7640]  ? __pfx_do_new_mount+0x10/0x10
[  336.813427][ T7640]  ? ns_capable+0x89/0xe0
[  336.813454][ T7640]  ? user_path_at+0xd4/0x160
[  336.813474][ T7640]  ? user_path_at+0xd4/0x160
[  336.813491][ T7640]  __se_sys_mount+0x31d/0x420
[  336.813510][ T7640]  ? __pfx___se_sys_mount+0x10/0x10
[  336.813529][ T7640]  ? __x64_sys_mount+0x20/0xc0
[  336.813543][ T7640]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.813559][ T7640]  do_syscall_64+0x15f/0xf80
[  336.813579][ T7640]  ? trace_irq_disable+0x3b/0x140
[  336.813596][ T7640]  ? clear_bhb_loop+0x40/0x90
[  336.813613][ T7640]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  336.813626][ T7640] RIP: 0033:0x7fcd1d0cb5ca
[  336.813641][ T7640] 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
[  336.813654][ T7640] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  336.813671][ T7640] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  336.813681][ T7640] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  336.813691][ T7640] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  336.813700][ T7640] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  336.813709][ T7640] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  336.813733][ T7640]  </TASK>
[  336.813759][ T7640] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  336.813777][ T7640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.022584][ T7642] loop0: detected capacity change from 0 to 32768
[  337.113016][ T7642] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.113039][ T7642] CPU: 0 UID: 0 PID: 7642 Comm: syz.0.270 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.113061][ T7642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  337.113071][ T7642] Call Trace:
[  337.113078][ T7642]  <TASK>
[  337.113086][ T7642]  dump_stack_lvl+0xe8/0x150
[  337.113127][ T7642]  sysfs_create_dir_ns+0x271/0x2a0
[  337.113148][ T7642]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  337.113171][ T7642]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.113189][ T7642]  ? __rcu_read_unlock+0x83/0xe0
[  337.113215][ T7642]  ? rt_spin_unlock+0x160/0x200
[  337.113237][ T7642]  kobject_add_internal+0x631/0xd10
[  337.113264][ T7642]  kobject_init_and_add+0x12b/0x1a0
[  337.113288][ T7642]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.113308][ T7642]  ? __raw_spin_lock_init+0x45/0x100
[  337.113331][ T7642]  ? __init_swait_queue_head+0xa9/0x150
[  337.113358][ T7642]  gfs2_sys_fs_add+0x257/0x480
[  337.113378][ T7642]  ? is_dynamic_key+0x1ac/0x1c0
[  337.113403][ T7642]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.113432][ T7642]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.113470][ T7642]  gfs2_fill_super+0x141c/0x2220
[  337.113511][ T7642]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.113533][ T7642]  ? rt_spin_unlock+0x14f/0x200
[  337.113558][ T7642]  ? sb_set_blocksize+0x11b/0x210
[  337.113585][ T7642]  ? setup_bdev_super+0x4c1/0x5b0
[  337.113612][ T7642]  get_tree_bdev_flags+0x431/0x4f0
[  337.113635][ T7642]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.113659][ T7642]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.113680][ T7642]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  337.113712][ T7642]  gfs2_get_tree+0x51/0x1e0
[  337.113740][ T7642]  vfs_get_tree+0x92/0x2a0
[  337.113765][ T7642]  do_new_mount+0x341/0xd30
[  337.113785][ T7642]  ? apparmor_capable+0x126/0x170
[  337.113815][ T7642]  ? __pfx_do_new_mount+0x10/0x10
[  337.113833][ T7642]  ? ns_capable+0x89/0xe0
[  337.113859][ T7642]  ? user_path_at+0xd4/0x160
[  337.113883][ T7642]  ? user_path_at+0xd4/0x160
[  337.113905][ T7642]  __se_sys_mount+0x31d/0x420
[  337.113929][ T7642]  ? __pfx___se_sys_mount+0x10/0x10
[  337.113954][ T7642]  ? __x64_sys_mount+0x20/0xc0
[  337.113972][ T7642]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.113992][ T7642]  do_syscall_64+0x15f/0xf80
[  337.114015][ T7642]  ? trace_irq_disable+0x3b/0x140
[  337.114037][ T7642]  ? clear_bhb_loop+0x40/0x90
[  337.114058][ T7642]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.114076][ T7642] RIP: 0033:0x7fa65a4db5ca
[  337.114094][ T7642] 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
[  337.114118][ T7642] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.114138][ T7642] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  337.114151][ T7642] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  337.114164][ T7642] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  337.114177][ T7642] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  337.114188][ T7642] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  337.114218][ T7642]  </TASK>
[  337.114256][ T7642] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.114271][ T7642] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  337.955428][ T7646] loop4: detected capacity change from 0 to 32768
[  337.972451][ T7646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  337.972473][ T7646] CPU: 1 UID: 0 PID: 7646 Comm: syz.4.271 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  337.972493][ T7646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  337.972503][ T7646] Call Trace:
[  337.972511][ T7646]  <TASK>
[  337.972518][ T7646]  dump_stack_lvl+0xe8/0x150
[  337.972546][ T7646]  sysfs_create_dir_ns+0x271/0x2a0
[  337.972566][ T7646]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  337.972589][ T7646]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  337.972610][ T7646]  ? rt_spin_unlock+0x160/0x200
[  337.972631][ T7646]  kobject_add_internal+0x631/0xd10
[  337.972657][ T7646]  kobject_init_and_add+0x12b/0x1a0
[  337.972681][ T7646]  ? __pfx_kobject_init_and_add+0x10/0x10
[  337.972701][ T7646]  ? __raw_spin_lock_init+0x45/0x100
[  337.972726][ T7646]  ? __init_swait_queue_head+0xa9/0x150
[  337.972753][ T7646]  gfs2_sys_fs_add+0x257/0x480
[  337.972773][ T7646]  ? is_dynamic_key+0x1ac/0x1c0
[  337.972798][ T7646]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  337.972827][ T7646]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  337.972865][ T7646]  gfs2_fill_super+0x141c/0x2220
[  337.972906][ T7646]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.972927][ T7646]  ? rt_spin_unlock+0x14f/0x200
[  337.972951][ T7646]  ? sb_set_blocksize+0x11b/0x210
[  337.972978][ T7646]  ? setup_bdev_super+0x4c1/0x5b0
[  337.973004][ T7646]  get_tree_bdev_flags+0x431/0x4f0
[  337.973027][ T7646]  ? __pfx_gfs2_fill_super+0x10/0x10
[  337.973051][ T7646]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  337.973079][ T7646]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  337.973112][ T7646]  gfs2_get_tree+0x51/0x1e0
[  337.973139][ T7646]  vfs_get_tree+0x92/0x2a0
[  337.973164][ T7646]  do_new_mount+0x341/0xd30
[  337.973182][ T7646]  ? apparmor_capable+0x126/0x170
[  337.973213][ T7646]  ? __pfx_do_new_mount+0x10/0x10
[  337.973231][ T7646]  ? ns_capable+0x89/0xe0
[  337.973256][ T7646]  ? user_path_at+0xd4/0x160
[  337.973281][ T7646]  ? user_path_at+0xd4/0x160
[  337.973303][ T7646]  __se_sys_mount+0x31d/0x420
[  337.973328][ T7646]  ? __pfx___se_sys_mount+0x10/0x10
[  337.973352][ T7646]  ? __x64_sys_mount+0x20/0xc0
[  337.973370][ T7646]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.973390][ T7646]  do_syscall_64+0x15f/0xf80
[  337.973413][ T7646]  ? trace_irq_disable+0x3b/0x140
[  337.973436][ T7646]  ? clear_bhb_loop+0x40/0x90
[  337.973454][ T7646]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  337.973471][ T7646] RIP: 0033:0x7f9375c8b5ca
[  337.973489][ T7646] 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
[  337.973505][ T7646] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  337.973525][ T7646] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  337.973537][ T7646] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  337.973551][ T7646] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  337.973563][ T7646] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  337.973581][ T7646] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  337.973610][ T7646]  </TASK>
[  337.973636][ T7646] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  337.973651][ T7646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  339.178737][ T7652] loop2: detected capacity change from 0 to 32768
[  339.202533][ T7652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.202555][ T7652] CPU: 0 UID: 0 PID: 7652 Comm: syz.2.272 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.202576][ T7652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  339.202587][ T7652] Call Trace:
[  339.202594][ T7652]  <TASK>
[  339.202602][ T7652]  dump_stack_lvl+0xe8/0x150
[  339.202631][ T7652]  sysfs_create_dir_ns+0x271/0x2a0
[  339.202652][ T7652]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  339.202675][ T7652]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.202697][ T7652]  ? rt_spin_unlock+0x160/0x200
[  339.202720][ T7652]  kobject_add_internal+0x631/0xd10
[  339.202745][ T7652]  kobject_init_and_add+0x12b/0x1a0
[  339.202769][ T7652]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.202789][ T7652]  ? __raw_spin_lock_init+0x45/0x100
[  339.202814][ T7652]  ? __init_swait_queue_head+0xa9/0x150
[  339.202842][ T7652]  gfs2_sys_fs_add+0x257/0x480
[  339.202861][ T7652]  ? is_dynamic_key+0x1ac/0x1c0
[  339.202886][ T7652]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.202913][ T7652]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.202950][ T7652]  gfs2_fill_super+0x141c/0x2220
[  339.202994][ T7652]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.203015][ T7652]  ? rt_spin_unlock+0x14f/0x200
[  339.203037][ T7652]  ? sb_set_blocksize+0x11b/0x210
[  339.203065][ T7652]  ? setup_bdev_super+0x4c1/0x5b0
[  339.203090][ T7652]  get_tree_bdev_flags+0x431/0x4f0
[  339.203113][ T7652]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.203136][ T7652]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.203154][ T7652]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  339.203184][ T7652]  gfs2_get_tree+0x51/0x1e0
[  339.203211][ T7652]  vfs_get_tree+0x92/0x2a0
[  339.203234][ T7652]  do_new_mount+0x341/0xd30
[  339.203251][ T7652]  ? apparmor_capable+0x126/0x170
[  339.203282][ T7652]  ? __pfx_do_new_mount+0x10/0x10
[  339.203299][ T7652]  ? ns_capable+0x89/0xe0
[  339.203322][ T7652]  ? user_path_at+0xd4/0x160
[  339.203344][ T7652]  ? user_path_at+0xd4/0x160
[  339.203364][ T7652]  __se_sys_mount+0x31d/0x420
[  339.203387][ T7652]  ? __pfx___se_sys_mount+0x10/0x10
[  339.203411][ T7652]  ? __x64_sys_mount+0x20/0xc0
[  339.203428][ T7652]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.203445][ T7652]  do_syscall_64+0x15f/0xf80
[  339.203466][ T7652]  ? trace_irq_disable+0x3b/0x140
[  339.203488][ T7652]  ? clear_bhb_loop+0x40/0x90
[  339.203509][ T7652]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.203526][ T7652] RIP: 0033:0x7fda0394b5ca
[  339.203544][ T7652] 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
[  339.203560][ T7652] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.203580][ T7652] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  339.203594][ T7652] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  339.203607][ T7652] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  339.203618][ T7652] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  339.203630][ T7652] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  339.203659][ T7652]  </TASK>
[  339.203865][ T7652] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  339.203880][ T7652] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  339.461370][ T7661] loop1: detected capacity change from 0 to 32768
[  339.527805][ T7661] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  339.527828][ T7661] CPU: 1 UID: 0 PID: 7661 Comm: syz.1.275 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  339.527849][ T7661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  339.527860][ T7661] Call Trace:
[  339.527867][ T7661]  <TASK>
[  339.527881][ T7661]  dump_stack_lvl+0xe8/0x150
[  339.527909][ T7661]  sysfs_create_dir_ns+0x271/0x2a0
[  339.527929][ T7661]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  339.527953][ T7661]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  339.527975][ T7661]  ? rt_spin_unlock+0x160/0x200
[  339.527996][ T7661]  kobject_add_internal+0x631/0xd10
[  339.528021][ T7661]  kobject_init_and_add+0x12b/0x1a0
[  339.528044][ T7661]  ? __pfx_kobject_init_and_add+0x10/0x10
[  339.528063][ T7661]  ? __raw_spin_lock_init+0x45/0x100
[  339.528088][ T7661]  ? __init_swait_queue_head+0xa9/0x150
[  339.528113][ T7661]  gfs2_sys_fs_add+0x257/0x480
[  339.528132][ T7661]  ? is_dynamic_key+0x1ac/0x1c0
[  339.528157][ T7661]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  339.528184][ T7661]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  339.528229][ T7661]  gfs2_fill_super+0x141c/0x2220
[  339.528273][ T7661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.528298][ T7661]  ? rt_spin_unlock+0x14f/0x200
[  339.528321][ T7661]  ? sb_set_blocksize+0x11b/0x210
[  339.528347][ T7661]  ? setup_bdev_super+0x4c1/0x5b0
[  339.528373][ T7661]  get_tree_bdev_flags+0x431/0x4f0
[  339.528396][ T7661]  ? __pfx_gfs2_fill_super+0x10/0x10
[  339.528418][ T7661]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  339.528438][ T7661]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  339.528468][ T7661]  gfs2_get_tree+0x51/0x1e0
[  339.528495][ T7661]  vfs_get_tree+0x92/0x2a0
[  339.528519][ T7661]  do_new_mount+0x341/0xd30
[  339.528535][ T7661]  ? apparmor_capable+0x126/0x170
[  339.528564][ T7661]  ? __pfx_do_new_mount+0x10/0x10
[  339.528582][ T7661]  ? ns_capable+0x89/0xe0
[  339.528606][ T7661]  ? user_path_at+0xd4/0x160
[  339.528629][ T7661]  ? user_path_at+0xd4/0x160
[  339.528650][ T7661]  __se_sys_mount+0x31d/0x420
[  339.528673][ T7661]  ? __pfx___se_sys_mount+0x10/0x10
[  339.528697][ T7661]  ? __x64_sys_mount+0x20/0xc0
[  339.528714][ T7661]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.528734][ T7661]  do_syscall_64+0x15f/0xf80
[  339.528755][ T7661]  ? trace_irq_disable+0x3b/0x140
[  339.528777][ T7661]  ? clear_bhb_loop+0x40/0x90
[  339.528797][ T7661]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  339.528815][ T7661] RIP: 0033:0x7fa3dbb3b5ca
[  339.528833][ 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
[  339.528847][ T7661] RSP: 002b:00007fa3db19de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  339.528866][ T7661] RAX: ffffffffffffffda RBX: 00007fa3db19dee0 RCX: 00007fa3dbb3b5ca
[  339.528886][ T7661] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa3db19dea0
[  339.528899][ T7661] RBP: 000020000001f680 R08: 00007fa3db19dee0 R09: 0000000000000084
[  339.528910][ T7661] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  339.528921][ T7661] R13: 00007fa3db19dea0 R14: 000000000001f790 R15: 00002000000001c0
[  339.528948][ T7661]  </TASK>
[  339.528989][ 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.
[  339.529008][ T7661] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  339.980577][ T7659] loop5: detected capacity change from 0 to 32768
[  340.030453][ T7659] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.030477][ T7659] CPU: 1 UID: 0 PID: 7659 Comm: syz.5.273 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.030499][ T7659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  340.030509][ T7659] Call Trace:
[  340.030517][ T7659]  <TASK>
[  340.030525][ T7659]  dump_stack_lvl+0xe8/0x150
[  340.030555][ T7659]  sysfs_create_dir_ns+0x271/0x2a0
[  340.030576][ T7659]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  340.030599][ T7659]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.030622][ T7659]  ? rt_spin_unlock+0x160/0x200
[  340.030646][ T7659]  kobject_add_internal+0x631/0xd10
[  340.030669][ T7659]  kobject_init_and_add+0x12b/0x1a0
[  340.030691][ T7659]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.030708][ T7659]  ? __raw_spin_lock_init+0x45/0x100
[  340.030732][ T7659]  ? __init_swait_queue_head+0xa9/0x150
[  340.030759][ T7659]  gfs2_sys_fs_add+0x257/0x480
[  340.030779][ T7659]  ? is_dynamic_key+0x1ac/0x1c0
[  340.030805][ T7659]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.030833][ T7659]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.030873][ T7659]  gfs2_fill_super+0x141c/0x2220
[  340.030912][ T7659]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.030934][ T7659]  ? rt_spin_unlock+0x14f/0x200
[  340.030959][ T7659]  ? sb_set_blocksize+0x11b/0x210
[  340.030986][ T7659]  ? setup_bdev_super+0x4c1/0x5b0
[  340.031012][ T7659]  get_tree_bdev_flags+0x431/0x4f0
[  340.031036][ T7659]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.031060][ T7659]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.031087][ T7659]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  340.031120][ T7659]  gfs2_get_tree+0x51/0x1e0
[  340.031147][ T7659]  vfs_get_tree+0x92/0x2a0
[  340.031170][ T7659]  do_new_mount+0x341/0xd30
[  340.031188][ T7659]  ? apparmor_capable+0x126/0x170
[  340.031221][ T7659]  ? __pfx_do_new_mount+0x10/0x10
[  340.031239][ T7659]  ? ns_capable+0x89/0xe0
[  340.031265][ T7659]  ? user_path_at+0xd4/0x160
[  340.031290][ T7659]  ? user_path_at+0xd4/0x160
[  340.031313][ T7659]  __se_sys_mount+0x31d/0x420
[  340.031337][ T7659]  ? __pfx___se_sys_mount+0x10/0x10
[  340.031363][ T7659]  ? __x64_sys_mount+0x20/0xc0
[  340.031381][ T7659]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.031401][ T7659]  do_syscall_64+0x15f/0xf80
[  340.031425][ T7659]  ? trace_irq_disable+0x3b/0x140
[  340.031449][ T7659]  ? clear_bhb_loop+0x40/0x90
[  340.031472][ T7659]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.031490][ T7659] RIP: 0033:0x7fcd1d0cb5ca
[  340.031508][ T7659] 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
[  340.031525][ T7659] RSP: 002b:00007fcd1c72de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.031545][ T7659] RAX: ffffffffffffffda RBX: 00007fcd1c72dee0 RCX: 00007fcd1d0cb5ca
[  340.031558][ T7659] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fcd1c72dea0
[  340.031571][ T7659] RBP: 000020000001f680 R08: 00007fcd1c72dee0 R09: 0000000000000084
[  340.031583][ T7659] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  340.031595][ T7659] R13: 00007fcd1c72dea0 R14: 000000000001f790 R15: 00002000000001c0
[  340.031624][ T7659]  </TASK>
[  340.044462][ T7659] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.044482][ T7659] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.069459][ T7662] loop0: detected capacity change from 0 to 32768
[  340.075890][ T7662] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.075911][ T7662] CPU: 1 UID: 0 PID: 7662 Comm: syz.0.274 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.075932][ T7662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  340.075943][ T7662] Call Trace:
[  340.075950][ T7662]  <TASK>
[  340.075957][ T7662]  dump_stack_lvl+0xe8/0x150
[  340.075984][ T7662]  sysfs_create_dir_ns+0x271/0x2a0
[  340.076004][ T7662]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  340.076027][ T7662]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.076049][ T7662]  ? rt_spin_unlock+0x160/0x200
[  340.076070][ T7662]  kobject_add_internal+0x631/0xd10
[  340.076103][ T7662]  kobject_init_and_add+0x12b/0x1a0
[  340.076126][ T7662]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.076145][ T7662]  ? __raw_spin_lock_init+0x45/0x100
[  340.076169][ T7662]  ? __init_swait_queue_head+0xa9/0x150
[  340.076196][ T7662]  gfs2_sys_fs_add+0x257/0x480
[  340.076215][ T7662]  ? is_dynamic_key+0x1ac/0x1c0
[  340.076240][ T7662]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.076268][ T7662]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.076307][ T7662]  gfs2_fill_super+0x141c/0x2220
[  340.076344][ T7662]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.076365][ T7662]  ? rt_spin_unlock+0x14f/0x200
[  340.076388][ T7662]  ? sb_set_blocksize+0x11b/0x210
[  340.076415][ T7662]  ? setup_bdev_super+0x4c1/0x5b0
[  340.076440][ T7662]  get_tree_bdev_flags+0x431/0x4f0
[  340.076462][ T7662]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.076485][ T7662]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.076504][ T7662]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  340.076536][ T7662]  gfs2_get_tree+0x51/0x1e0
[  340.076564][ T7662]  vfs_get_tree+0x92/0x2a0
[  340.076587][ T7662]  do_new_mount+0x341/0xd30
[  340.076604][ T7662]  ? apparmor_capable+0x126/0x170
[  340.076635][ T7662]  ? __pfx_do_new_mount+0x10/0x10
[  340.076653][ T7662]  ? ns_capable+0x89/0xe0
[  340.076677][ T7662]  ? user_path_at+0xd4/0x160
[  340.076702][ T7662]  ? user_path_at+0xd4/0x160
[  340.076724][ T7662]  __se_sys_mount+0x31d/0x420
[  340.076748][ T7662]  ? __pfx___se_sys_mount+0x10/0x10
[  340.076772][ T7662]  ? __x64_sys_mount+0x20/0xc0
[  340.076789][ T7662]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.076809][ T7662]  do_syscall_64+0x15f/0xf80
[  340.076832][ T7662]  ? trace_irq_disable+0x3b/0x140
[  340.076854][ T7662]  ? clear_bhb_loop+0x40/0x90
[  340.076876][ T7662]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.076894][ T7662] RIP: 0033:0x7fa65a4db5ca
[  340.076911][ T7662] 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
[  340.076925][ T7662] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.076943][ T7662] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  340.076955][ T7662] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  340.076967][ T7662] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  340.076978][ T7662] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  340.076988][ T7662] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  340.077017][ T7662]  </TASK>
[  340.090901][ T7662] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.090921][ T7662] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  340.774426][ T7666] loop4: detected capacity change from 0 to 32768
[  340.788846][ T7666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  340.788867][ T7666] CPU: 0 UID: 0 PID: 7666 Comm: syz.4.276 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  340.788889][ T7666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  340.788903][ T7666] Call Trace:
[  340.788910][ T7666]  <TASK>
[  340.788918][ T7666]  dump_stack_lvl+0xe8/0x150
[  340.788945][ T7666]  sysfs_create_dir_ns+0x271/0x2a0
[  340.788964][ T7666]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  340.788985][ T7666]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  340.789016][ T7666]  ? rt_spin_unlock+0x160/0x200
[  340.789036][ T7666]  kobject_add_internal+0x631/0xd10
[  340.789059][ T7666]  kobject_init_and_add+0x12b/0x1a0
[  340.789081][ T7666]  ? __pfx_kobject_init_and_add+0x10/0x10
[  340.789100][ T7666]  ? __raw_spin_lock_init+0x45/0x100
[  340.789123][ T7666]  ? __init_swait_queue_head+0xa9/0x150
[  340.789150][ T7666]  gfs2_sys_fs_add+0x257/0x480
[  340.789169][ T7666]  ? is_dynamic_key+0x1ac/0x1c0
[  340.789194][ T7666]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  340.789222][ T7666]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  340.789259][ T7666]  gfs2_fill_super+0x141c/0x2220
[  340.789299][ T7666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.789321][ T7666]  ? rt_spin_unlock+0x14f/0x200
[  340.789346][ T7666]  ? sb_set_blocksize+0x11b/0x210
[  340.789374][ T7666]  ? setup_bdev_super+0x4c1/0x5b0
[  340.789400][ T7666]  get_tree_bdev_flags+0x431/0x4f0
[  340.789423][ T7666]  ? __pfx_gfs2_fill_super+0x10/0x10
[  340.789447][ T7666]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  340.789468][ T7666]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  340.789499][ T7666]  gfs2_get_tree+0x51/0x1e0
[  340.789527][ T7666]  vfs_get_tree+0x92/0x2a0
[  340.789551][ T7666]  do_new_mount+0x341/0xd30
[  340.789568][ T7666]  ? apparmor_capable+0x126/0x170
[  340.789601][ T7666]  ? __pfx_do_new_mount+0x10/0x10
[  340.789620][ T7666]  ? ns_capable+0x89/0xe0
[  340.789645][ T7666]  ? user_path_at+0xd4/0x160
[  340.789669][ T7666]  ? user_path_at+0xd4/0x160
[  340.789692][ T7666]  __se_sys_mount+0x31d/0x420
[  340.789716][ T7666]  ? __pfx___se_sys_mount+0x10/0x10
[  340.789741][ T7666]  ? __x64_sys_mount+0x20/0xc0
[  340.789757][ T7666]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.789777][ T7666]  do_syscall_64+0x15f/0xf80
[  340.789800][ T7666]  ? trace_irq_disable+0x3b/0x140
[  340.789823][ T7666]  ? clear_bhb_loop+0x40/0x90
[  340.789846][ T7666]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  340.789864][ T7666] RIP: 0033:0x7f9375c8b5ca
[  340.789882][ T7666] 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
[  340.789897][ T7666] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  340.789918][ T7666] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  340.789932][ T7666] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  340.789946][ T7666] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  340.789957][ T7666] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  340.789968][ T7666] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  340.790004][ T7666]  </TASK>
[  340.790043][ T7666] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  340.790057][ T7666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  342.230436][ T7672] loop2: detected capacity change from 0 to 32768
[  342.278665][ T7672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  342.278688][ T7672] CPU: 1 UID: 0 PID: 7672 Comm: syz.2.277 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  342.278710][ T7672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  342.278720][ T7672] Call Trace:
[  342.278727][ T7672]  <TASK>
[  342.278736][ T7672]  dump_stack_lvl+0xe8/0x150
[  342.278766][ T7672]  sysfs_create_dir_ns+0x271/0x2a0
[  342.278786][ T7672]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  342.278810][ T7672]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  342.278832][ T7672]  ? rt_spin_unlock+0x160/0x200
[  342.278855][ T7672]  kobject_add_internal+0x631/0xd10
[  342.278881][ T7672]  kobject_init_and_add+0x12b/0x1a0
[  342.278905][ T7672]  ? __pfx_kobject_init_and_add+0x10/0x10
[  342.278925][ T7672]  ? __raw_spin_lock_init+0x45/0x100
[  342.278957][ T7672]  ? __init_swait_queue_head+0xa9/0x150
[  342.278985][ T7672]  gfs2_sys_fs_add+0x257/0x480
[  342.279005][ T7672]  ? is_dynamic_key+0x1ac/0x1c0
[  342.279031][ T7672]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  342.279060][ T7672]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  342.279090][ T7672]  ? sized_strscpy+0xa3/0x250
[  342.279122][ T7672]  gfs2_fill_super+0x141c/0x2220
[  342.279162][ T7672]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.279184][ T7672]  ? rt_spin_unlock+0x14f/0x200
[  342.279209][ T7672]  ? sb_set_blocksize+0x11b/0x210
[  342.279236][ T7672]  ? setup_bdev_super+0x4c1/0x5b0
[  342.279262][ T7672]  get_tree_bdev_flags+0x431/0x4f0
[  342.279286][ T7672]  ? __pfx_gfs2_fill_super+0x10/0x10
[  342.279310][ T7672]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  342.279330][ T7672]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  342.279362][ T7672]  gfs2_get_tree+0x51/0x1e0
[  342.279390][ T7672]  vfs_get_tree+0x92/0x2a0
[  342.279414][ T7672]  do_new_mount+0x341/0xd30
[  342.279431][ T7672]  ? apparmor_capable+0x126/0x170
[  342.279462][ T7672]  ? __pfx_do_new_mount+0x10/0x10
[  342.279480][ T7672]  ? ns_capable+0x89/0xe0
[  342.279505][ T7672]  ? user_path_at+0xd4/0x160
[  342.279529][ T7672]  ? user_path_at+0xd4/0x160
[  342.279551][ T7672]  __se_sys_mount+0x31d/0x420
[  342.279576][ T7672]  ? __pfx___se_sys_mount+0x10/0x10
[  342.279601][ T7672]  ? __x64_sys_mount+0x20/0xc0
[  342.279619][ T7672]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.279640][ T7672]  do_syscall_64+0x15f/0xf80
[  342.279663][ T7672]  ? trace_irq_disable+0x3b/0x140
[  342.279685][ T7672]  ? clear_bhb_loop+0x40/0x90
[  342.279707][ T7672]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  342.279725][ T7672] RIP: 0033:0x7fda0394b5ca
[  342.279743][ T7672] 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
[  342.279759][ T7672] RSP: 002b:00007fda02fade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  342.279779][ T7672] RAX: ffffffffffffffda RBX: 00007fda02fadee0 RCX: 00007fda0394b5ca
[  342.279793][ T7672] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fda02fadea0
[  342.279805][ T7672] RBP: 000020000001f680 R08: 00007fda02fadee0 R09: 0000000000000084
[  342.279820][ T7672] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  342.279832][ T7672] R13: 00007fda02fadea0 R14: 000000000001f790 R15: 00002000000001c0
[  342.279861][ T7672]  </TASK>
[  342.287836][ T7672] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/05/01 04:10:19 executed programs: 275
[  342.287856][ T7672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  343.187286][ T7682] loop0: detected capacity change from 0 to 32768
[  343.209161][ T7682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.209185][ T7682] CPU: 1 UID: 0 PID: 7682 Comm: syz.0.279 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.209206][ T7682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  343.209216][ T7682] Call Trace:
[  343.209224][ T7682]  <TASK>
[  343.209231][ T7682]  dump_stack_lvl+0xe8/0x150
[  343.209260][ T7682]  sysfs_create_dir_ns+0x271/0x2a0
[  343.209281][ T7682]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  343.209304][ T7682]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.209327][ T7682]  ? rt_spin_unlock+0x160/0x200
[  343.209356][ T7682]  kobject_add_internal+0x631/0xd10
[  343.209384][ T7682]  kobject_init_and_add+0x12b/0x1a0
[  343.209408][ T7682]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.209429][ T7682]  ? __raw_spin_lock_init+0x45/0x100
[  343.209454][ T7682]  ? __init_swait_queue_head+0xa9/0x150
[  343.209481][ T7682]  gfs2_sys_fs_add+0x257/0x480
[  343.209502][ T7682]  ? is_dynamic_key+0x1ac/0x1c0
[  343.209532][ T7682]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.209561][ T7682]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.209601][ T7682]  gfs2_fill_super+0x141c/0x2220
[  343.209641][ T7682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.209663][ T7682]  ? rt_spin_unlock+0x14f/0x200
[  343.209687][ T7682]  ? sb_set_blocksize+0x11b/0x210
[  343.209713][ T7682]  ? setup_bdev_super+0x4c1/0x5b0
[  343.209739][ T7682]  get_tree_bdev_flags+0x431/0x4f0
[  343.209761][ T7682]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.209785][ T7682]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.209805][ T7682]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  343.209845][ T7682]  gfs2_get_tree+0x51/0x1e0
[  343.209872][ T7682]  vfs_get_tree+0x92/0x2a0
[  343.209896][ T7682]  do_new_mount+0x341/0xd30
[  343.209913][ T7682]  ? apparmor_capable+0x126/0x170
[  343.209944][ T7682]  ? __pfx_do_new_mount+0x10/0x10
[  343.209962][ T7682]  ? ns_capable+0x89/0xe0
[  343.209987][ T7682]  ? user_path_at+0xd4/0x160
[  343.210012][ T7682]  ? user_path_at+0xd4/0x160
[  343.210033][ T7682]  __se_sys_mount+0x31d/0x420
[  343.210057][ T7682]  ? __pfx___se_sys_mount+0x10/0x10
[  343.210082][ T7682]  ? __x64_sys_mount+0x20/0xc0
[  343.210099][ T7682]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.210120][ T7682]  do_syscall_64+0x15f/0xf80
[  343.210144][ T7682]  ? trace_irq_disable+0x3b/0x140
[  343.210167][ T7682]  ? clear_bhb_loop+0x40/0x90
[  343.210190][ T7682]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.210208][ T7682] RIP: 0033:0x7fa65a4db5ca
[  343.210227][ 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
[  343.210243][ T7682] RSP: 002b:00007fa659b3de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.210267][ T7682] RAX: ffffffffffffffda RBX: 00007fa659b3dee0 RCX: 00007fa65a4db5ca
[  343.210281][ T7682] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fa659b3dea0
[  343.210294][ T7682] RBP: 000020000001f680 R08: 00007fa659b3dee0 R09: 0000000000000084
[  343.210306][ T7682] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  343.210318][ T7682] R13: 00007fa659b3dea0 R14: 000000000001f790 R15: 00002000000001c0
[  343.210345][ T7682]  </TASK>
[  343.210378][ 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.
[  343.210391][ T7682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  343.557111][ T7686] loop4: detected capacity change from 0 to 32768
[  343.580268][ T7686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  343.580290][ T7686] CPU: 1 UID: 0 PID: 7686 Comm: syz.4.281 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  343.580311][ T7686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  343.580322][ T7686] Call Trace:
[  343.580329][ T7686]  <TASK>
[  343.580337][ T7686]  dump_stack_lvl+0xe8/0x150
[  343.580365][ T7686]  sysfs_create_dir_ns+0x271/0x2a0
[  343.580385][ T7686]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  343.580409][ T7686]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  343.580432][ T7686]  ? rt_spin_unlock+0x160/0x200
[  343.580454][ T7686]  kobject_add_internal+0x631/0xd10
[  343.580480][ T7686]  kobject_init_and_add+0x12b/0x1a0
[  343.580504][ T7686]  ? __pfx_kobject_init_and_add+0x10/0x10
[  343.580524][ T7686]  ? __raw_spin_lock_init+0x45/0x100
[  343.580548][ T7686]  ? __init_swait_queue_head+0xa9/0x150
[  343.580576][ T7686]  gfs2_sys_fs_add+0x257/0x480
[  343.580605][ T7686]  ? is_dynamic_key+0x1ac/0x1c0
[  343.580633][ T7686]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[  343.580658][ T7686]  ? __pfx_alloc_workqueue_noprof+0x10/0x10
[  343.580693][ T7686]  gfs2_fill_super+0x141c/0x2220
[  343.580729][ T7686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.580750][ T7686]  ? rt_spin_unlock+0x14f/0x200
[  343.580772][ T7686]  ? sb_set_blocksize+0x11b/0x210
[  343.580798][ T7686]  ? setup_bdev_super+0x4c1/0x5b0
[  343.580824][ T7686]  get_tree_bdev_flags+0x431/0x4f0
[  343.580847][ T7686]  ? __pfx_gfs2_fill_super+0x10/0x10
[  343.580870][ T7686]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  343.580890][ T7686]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  343.580922][ T7686]  gfs2_get_tree+0x51/0x1e0
[  343.580948][ T7686]  vfs_get_tree+0x92/0x2a0
[  343.580972][ T7686]  do_new_mount+0x341/0xd30
[  343.580988][ T7686]  ? apparmor_capable+0x126/0x170
[  343.581019][ T7686]  ? __pfx_do_new_mount+0x10/0x10
[  343.581037][ T7686]  ? ns_capable+0x89/0xe0
[  343.581061][ T7686]  ? user_path_at+0xd4/0x160
[  343.581086][ T7686]  ? user_path_at+0xd4/0x160
[  343.581108][ T7686]  __se_sys_mount+0x31d/0x420
[  343.581133][ T7686]  ? __pfx___se_sys_mount+0x10/0x10
[  343.581158][ T7686]  ? __x64_sys_mount+0x20/0xc0
[  343.581175][ T7686]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.581195][ T7686]  do_syscall_64+0x15f/0xf80
[  343.581218][ T7686]  ? trace_irq_disable+0x3b/0x140
[  343.581242][ T7686]  ? clear_bhb_loop+0x40/0x90
[  343.581263][ T7686]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  343.581281][ T7686] RIP: 0033:0x7f9375c8b5ca
[  343.581299][ T7686] 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
[  343.581315][ T7686] RSP: 002b:00007f93752ede58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  343.581335][ T7686] RAX: ffffffffffffffda RBX: 00007f93752edee0 RCX: 00007f9375c8b5ca
[  343.581348][ T7686] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f93752edea0
[  343.581360][ T7686] RBP: 000020000001f680 R08: 00007f93752edee0 R09: 0000000000000084
[  343.581372][ T7686] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  343.581384][ T7686] R13: 00007f93752edea0 R14: 000000000001f790 R15: 00002000000001c0
[  343.581414][ T7686]  </TASK>
[  343.600261][ T7686] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  343.600282][ T7686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  344.861210][   T38] INFO: task kworker/1:5:5742 blocked in I/O wait for more than 143 seconds.
[  344.861236][   T38]       Not tainted syzkall[  344.861236][   T38]       Not tainted syzkaller #0
[  344.861246][   T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  344.861255][   T38] task:kworker/1:5     state:D stack:21096 pid:5742  tgid:5742  ppid:2      task_flags:0x4208060 flags:0x00080000
[  344.861301][   T38] Workqueue: gfs2_recovery gfs2_recover_func
[  344.861331][   T38] Call Trace:
[  344.861337][   T38]  <TASK>
[  344.861350][   T38]  __schedule+0x169e/0x54f0
[  344.861379][   T38]  ? __lock_acquire+0x6b5/0x2d10
[  344.861412][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  344.861449][   T38]  ? __pfx___schedule+0x10/0x10
[  344.861480][   T38]  ? schedule+0x90/0x360
[  344.861506][   T38]  schedule+0x164/0x360
[  344.861547][   T38]  io_schedule+0x7f/0xd0
[  344.861574][   T38]  folio_wait_bit_common+0x6dd/0xbc0
[  344.861615][   T38]  ? __pfx_folio_wait_bit_common+0x10/0x10
[  344.861641][   T38]  ? __pfx_wake_page_function+0x10/0x10
[  344.861669][   T38]  ? __get_log_header+0x2a3/0x630
[  344.861699][   T38]  ? __filemap_get_folio_mpol+0x6fa/0xa50
[  344.861729][   T38]  gfs2_jhead_process_page+0x175/0x670
[  344.861759][   T38]  ? __pfx_gfs2_jhead_process_page+0x10/0x10
[  344.861793][   T38]  gfs2_find_jhead+0xbd2/0xd30
[  344.861835][   T38]  gfs2_recover_func+0x6cf/0x1f60
[  344.861885][   T38]  ? __pfx_gfs2_recover_func+0x10/0x10
[  344.861911][   T38]  ? __lock_acquire+0x6b5/0x2d10
[  344.861936][   T38]  ? look_up_lock_class+0x57/0x110
[  344.861962][   T38]  ? register_lock_class+0x31/0x2e0
[  344.861990][   T38]  ? __lock_acquire+0x6b5/0x2d10
[  344.862028][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  344.862058][   T38]  ? process_one_work+0x8b7/0x1710
[  344.862093][   T38]  ? process_one_work+0x8b7/0x1710
[  344.862112][   T38]  process_one_work+0x9a3/0x1710
[  344.862149][   T38]  ? __pfx_process_one_work+0x10/0x10
[  344.862167][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  344.862205][   T38]  worker_thread+0xba8/0x11e0
[  344.862237][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  344.862264][   T38]  ? __kthread_parkme+0x7a/0x1f0
[  344.862288][   T38]  ? __kthread_parkme+0x19c/0x1f0
[  344.862316][   T38]  kthread+0x388/0x470
[  344.862341][   T38]  ? __pfx_worker_thread+0x10/0x10
[  344.862362][   T38]  ? __pfx_kthread+0x10/0x10
[  344.862387][   T38]  ret_from_fork+0x514/0xb70
[  344.862412][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  344.862434][   T38]  ? __switch_to+0xc79/0x1410
[  344.862458][   T38]  ? __pfx_kthread+0x10/0x10
[  344.862484][   T38]  ret_from_fork_asm+0x1a/0x30
[  344.862548][   T38]  </TASK>
[  344.862595][   T38] INFO: task syz.3.53:6752 blocked for more than 143 seconds.
[  344.862609][   T38]       Not tainted syzkaller #0
[  344.862619][   T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  344.862628][   T38] task:syz.3.53        state:D stack:24664 pid:6752  tgid:6751  ppid:6140   task_flags:0x400140 flags:0x00080002
[  344.862679][   T38] Call Trace:
[  344.862685][   T38]  <TASK>
[  344.862696][   T38]  __schedule+0x169e/0x54f0
[  344.862722][   T38]  ? __lock_acquire+0x6b5/0x2d10
[  344.862755][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  344.862791][   T38]  ? __pfx___schedule+0x10/0x10
[  344.862822][   T38]  ? schedule+0x90/0x360
[  344.862848][   T38]  schedule+0x164/0x360
[  344.862873][   T38]  bit_wait+0x11/0xd0
[  344.862900][   T38]  __wait_on_bit+0xb9/0x300
[  344.862926][   T38]  ? __pfx_bit_wait+0x10/0x10
[  344.862953][   T38]  out_of_line_wait_on_bit+0x13b/0x190
[  344.862978][   T38]  ? __queue_work+0xc70/0x1010
[  344.863001][   T38]  ? __pfx_bit_wait+0x10/0x10
[  344.863024][   T38]  ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[  344.863052][   T38]  ? __pfx_wake_bit_function+0x10/0x10
[  344.863085][   T38]  gfs2_recover_journal+0xda/0x140
[  344.863112][   T38]  init_journal+0x16ad/0x2280
[  344.863148][   T38]  ? init_inodes+0xdb/0x320
[  344.863177][   T38]  ? __pfx_init_journal+0x10/0x10
[  344.863213][   T38]  ? snprintf+0xe8/0x140
[  344.863236][   T38]  ? init_inodes+0xdb/0x320
[  344.863261][   T38]  ? __pfx_snprintf+0x10/0x10
[  344.863282][   T38]  ? gfs2_glock_nq_num+0x13d/0x170
[  344.863304][   T38]  init_inodes+0xdb/0x320
[  344.863329][   T38]  gfs2_fill_super+0x1a92/0x2220
[  344.863368][   T38]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.863391][   T38]  ? rt_spin_unlock+0x14f/0x200
[  344.863414][   T38]  ? init_locking+0xb8/0x210
[  344.863437][   T38]  ? sb_set_blocksize+0x11b/0x210
[  344.863465][   T38]  ? setup_bdev_super+0x4c1/0x5b0
[  344.863492][   T38]  get_tree_bdev_flags+0x431/0x4f0
[  344.863516][   T38]  ? __pfx_gfs2_fill_super+0x10/0x10
[  344.863540][   T38]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[  344.863561][   T38]  ? __pfx_vfs_parse_comma_sep+0x10/0x10
[  344.863595][   T38]  gfs2_get_tree+0x51/0x1e0
[  344.863623][   T38]  vfs_get_tree+0x92/0x2a0
[  344.863648][   T38]  do_new_mount+0x341/0xd30
[  344.863673][   T38]  ? apparmor_capable+0x126/0x170
[  344.863704][   T38]  ? __pfx_do_new_mount+0x10/0x10
[  344.863723][   T38]  ? ns_capable+0x89/0xe0
[  344.863749][   T38]  ? user_path_at+0xd4/0x160
[  344.863839][   T38]  ? user_path_at+0xd4/0x160
[  344.863864][   T38]  __se_sys_mount+0x31d/0x420
[  344.863890][   T38]  ? __pfx___se_sys_mount+0x10/0x10
[  344.863915][   T38]  ? __x64_sys_mount+0x20/0xc0
[  344.863934][   T38]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.863954][   T38]  do_syscall_64+0x15f/0xf80
[  344.866144][   T38]  ? trace_irq_disable+0x3b/0x140
[  344.866178][   T38]  ? clear_bhb_loop+0x40/0x90
[  344.866203][   T38]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.866222][   T38] RIP: 0033:0x7fc5142cb5ca
[  344.866238][   T38] RSP: 002b:00007fc51392de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  344.866258][   T38] RAX: ffffffffffffffda RBX: 00007fc51392dee0 RCX: 00007fc5142cb5ca
[  344.866272][   T38] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fc51392dea0
[  344.866286][   T38] RBP: 000020000001f680 R08: 00007fc51392dee0 R09: 0000000000000084
[  344.866299][   T38] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[  344.866312][   T38] R13: 00007fc51392dea0 R14: 000000000001f790 R15: 00002000000001c0
[  344.866341][   T38]  </TASK>
[  344.866372][   T38] 
[  344.866372][   T38] Showing all locks held in the system:
[  344.866404][   T38] 1 lock held by khungtaskd/38:
[  344.866415][   T38]  #0: ffffffff8dfc8180 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  344.866493][   T38] 2 locks held by getty/5364:
[  344.866504][   T38]  #0: ffff888032a310a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  344.866549][   T38]  #1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[  344.866599][   T38] 2 locks held by kworker/1:5/5742:
[  344.866609][   T38]  #0: ffff88801bf40d38 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x890/0x1710
[  344.866676][   T38]  #1: ffffc90003e9fc40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x1710
[  344.866729][   T38] 1 lock held by syz.3.53/6752:
[  344.866739][   T38]  #0: ffff88805bf100d0 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xac0
[  344.866794][   T38] 1 lock held by syz.2.282/7690:
[  344.866804][   T38]  #0: ffff8880373090b0 (&mm->mmap_lock){++++}-{4:4}, at: vms_complete_munmap_vmas+0x247/0xc60
[  344.866854][   T38] 2 locks held by syz.0.283/7696:
[  344.866865][   T38]  #0: ffff88801b6b2480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  344.866912][   T38]  #1: ffff88803bc7fb08 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  344.866966][   T38] 2 locks held by syz.5.285/7698:
[  344.866976][   T38]  #0: ffff88801b6b2480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  344.867023][   T38]  #1: ffff888035418388 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  344.867075][   T38] 2 locks held by syz.4.284/7702:
[  344.867085][   T38]  #0: ffff88801b6b2480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  344.867132][   T38]  #1: ffff888035ce37d0 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  344.867184][   T38] 4 locks held by syz.1.286/7701:
[  344.867195][   T38]  #0: ffff88801b6b2480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  344.867242][   T38]  #1: ffff888035ce6c18 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120
[  344.867294][   T38]  #2: ffffffff8dfc8180 (rcu_read_lock){....}-{1:3}, at: shmem_add_to_page_cache+0x74a/0xbf0
[  344.867337][   T38]  #3: ffffffff8dfc8180 (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x10c/0x2b0
[  344.867382][   T38] 
[  344.867387][   T38] =============================================
[  344.867387][   T38] 
[  344.867405][   T38] NMI backtrace for cpu 0
[  344.867419][   T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  344.867438][   T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  344.867448][   T38] Call Trace:
[  344.867455][   T38]  <TASK>
[  344.867462][   T38]  dump_stack_lvl+0xe8/0x150
[  344.867484][   T38]  nmi_cpu_backtrace+0x274/0x2d0
[  344.867503][   T38]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  344.867525][   T38]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  344.867547][   T38]  sys_info+0x135/0x170
[  344.867564][   T38]  watchdog+0xfd3/0x1030
[  344.867596][   T38]  ? watchdog+0x1c9/0x1030
[  344.867623][   T38]  kthread+0x388/0x470
[  344.867648][   T38]  ? __pfx_watchdog+0x10/0x10
[  344.867675][   T38]  ? __pfx_kthread+0x10/0x10
[  344.867701][   T38]  ret_from_fork+0x514/0xb70
[  344.867725][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  344.867747][   T38]  ? __switch_to+0xc79/0x1410
[  344.867768][   T38]  ? __pfx_kthread+0x10/0x10
[  344.867794][   T38]  ret_from_fork_asm+0x1a/0x30
[  344.867830][   T38]  </TASK>
[  344.867853][   T38] Sending NMI from CPU 0 to CPUs 1:
[  344.867884][    C1] NMI backtrace for cpu 1
[  344.867897][    C1] CPU: 1 UID: 0 PID: 7696 Comm: syz.0.283 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  344.867915][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  344.867923][    C1] RIP: 0010:__lock_acquire+0x110/0x2d10
[  344.867947][    C1] Code: 40 01 00 00 44 8b a4 24 30 01 00 00 89 d5 48 c7 c1 30 23 18 93 48 29 c8 48 c1 f8 03 48 be 29 5c 8f c2 f5 28 5c 8f 48 0f af f0 <85> db 0f 85 52 01 00 00 85 ed 0f 84 4a 01 00 00 83 fd 31 0f 83 09
[  344.867960][    C1] RSP: 0018:ffffc90006806f90 EFLAGS: 00000803
[  344.867974][    C1] RAX: 0000000000000113 RBX: 0000000000000000 RCX: ffffffff93182330
[  344.867985][    C1] RDX: 0000000000000002 RSI: 000000000000000b RDI: ffffffff8dfc8180
[  344.867995][    C1] RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff8dfc8180
[  344.868005][    C1] R10: ffffc90006807298 R11: ffffffff81afb320 R12: 0000000000000000
[  344.868016][    C1] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000
[  344.868026][    C1] FS:  00007fa659b3e6c0(0000) GS:ffff88812602a000(0000) knlGS:0000000000000000
[  344.868039][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  344.868050][    C1] CR2: 00007fa3d3d7d000 CR3: 0000000038550000 CR4: 00000000003526f0
[  344.868064][    C1] Call Trace:
[  344.868070][    C1]  <TASK>
[  344.868077][    C1]  ? __lock_acquire+0x6b5/0x2d10
[  344.868100][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868122][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868140][    C1]  lock_acquire+0x106/0x350
[  344.868158][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868180][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868198][    C1]  ? get_page_from_freelist+0x27d6/0x2850
[  344.868218][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868237][    C1]  unwind_next_frame+0xc3/0x2550
[  344.868255][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868276][    C1]  ? unwind_next_frame+0xa6/0x2550
[  344.868295][    C1]  ? post_alloc_hook+0x1f9/0x250
[  344.868311][    C1]  ? get_page_from_freelist+0x27d6/0x2850
[  344.868331][    C1]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  344.868350][    C1]  arch_stack_walk+0x11b/0x150
[  344.868372][    C1]  ? get_page_from_freelist+0x27d6/0x2850
[  344.868393][    C1]  stack_trace_save+0xa9/0x100
[  344.868418][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  344.868439][    C1]  save_stack+0x122/0x230
[  344.868457][    C1]  ? __pfx_save_stack+0x10/0x10
[  344.868473][    C1]  ? post_alloc_hook+0x1f9/0x250
[  344.868489][    C1]  ? get_page_from_freelist+0x27d6/0x2850
[  344.868512][    C1]  ? bad_range+0xa0/0x330
[  344.868529][    C1]  __set_page_owner+0x8d/0x4c0
[  344.868547][    C1]  ? __pfx___set_page_owner+0x10/0x10
[  344.868564][    C1]  ? seqcount_lockdep_reader_access+0x89/0xc0
[  344.868579][    C1]  ? lockdep_hardirqs_on+0x7a/0x110
[  344.868601][    C1]  ? bad_range+0xa0/0x330
[  344.868616][    C1]  post_alloc_hook+0x1f9/0x250
[  344.868634][    C1]  get_page_from_freelist+0x27d6/0x2850
[  344.868657][    C1]  ? fs_reclaim_acquire+0x7c/0x100
[  344.868685][    C1]  __alloc_frozen_pages_noprof+0x18d/0x380
[  344.868706][    C1]  ? __pfx___alloc_frozen_pages_noprof+0x10/0x10
[  344.868727][    C1]  ? __pfx_policy_nodemask+0x10/0x10
[  344.868745][    C1]  ? filemap_get_entry+0x378/0x3f0
[  344.868765][    C1]  ? __pfx_filemap_get_entry+0x10/0x10
[  344.868784][    C1]  alloc_pages_mpol+0xd1/0x380
[  344.868804][    C1]  folio_alloc_mpol_noprof+0x3b/0x1e0
[  344.868824][    C1]  shmem_get_folio_gfp+0x644/0x1a80
[  344.868850][    C1]  ? __pfx_shmem_get_folio_gfp+0x10/0x10
[  344.868867][    C1]  ? folio_mapping+0x16f/0x1f0
[  344.868885][    C1]  shmem_write_begin+0x166/0x320
[  344.868905][    C1]  generic_perform_write+0x2af/0x8b0
[  344.868929][    C1]  ? __pfx_generic_perform_write+0x10/0x10
[  344.868950][    C1]  ? preempt_count_add+0x91/0x190
[  344.868970][    C1]  ? mnt_put_write_access_file+0xbf/0x100
[  344.868988][    C1]  ? file_update_time_flags+0x406/0x4b0
[  344.869007][    C1]  shmem_file_write_iter+0xfb/0x120
[  344.869028][    C1]  vfs_write+0x629/0xba0
[  344.869047][    C1]  ? __pfx_vfs_write+0x10/0x10
[  344.869068][    C1]  ? __fget_files+0x2a/0x420
[  344.869085][    C1]  ksys_write+0x156/0x270
[  344.869103][    C1]  ? __pfx_ksys_write+0x10/0x10
[  344.869123][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.869138][    C1]  do_syscall_64+0x15f/0xf80
[  344.869157][    C1]  ? trace_irq_disable+0x3b/0x140
[  344.869175][    C1]  ? clear_bhb_loop+0x40/0x90
[  344.869192][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  344.869206][    C1] RIP: 0033:0x7fa65a49ac0e
[  344.869218][    C1] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[  344.869230][    C1] RSP: 002b:00007fa659b3dda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  344.869245][    C1] RAX: ffffffffffffffda RBX: 00007fa659b3e6c0 RCX: 00007fa65a49ac0e
[  344.869257][    C1] RDX: 0000000001000000 RSI: 00007fa65171e000 RDI: 0000000000000003
[  344.869267][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  344.869276][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[  344.869285][    C1] R13: 00007fa659b3dee0 R14: 00007fa659b3dea0 R15: 00007fa65171e000
[  344.869303][    C1]  </TASK>
[  344.886259][   T38] Kernel panic - not syncing: hung_task: blocked tasks
[  344.886293][   T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  344.886315][   T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  344.886329][   T38] Call Trace:
[  344.886337][   T38]  <TASK>
[  344.886345][   T38]  vpanic+0x56c/0xa60
[  344.886373][   T38]  ? __pfx___schedule+0x10/0x10
[  344.886415][   T38]  ? __pfx_vpanic+0x10/0x10
[  344.886445][   T38]  panic+0xc5/0xd0
[  344.886465][   T38]  ? __pfx_panic+0x10/0x10
[  344.886488][   T38]  ? preempt_schedule_thunk+0x16/0x30
[  344.886511][   T38]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  344.886534][   T38]  watchdog+0x102c/0x1030
[  344.886563][   T38]  ? watchdog+0x1c9/0x1030
[  344.886589][   T38]  kthread+0x388/0x470
[  344.886613][   T38]  ? __pfx_watchdog+0x10/0x10
[  344.886632][   T38]  ? __pfx_kthread+0x10/0x10
[  344.886662][   T38]  ret_from_fork+0x514/0xb70
[  344.886686][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  344.886706][   T38]  ? __switch_to+0xc79/0x1410
[  344.886727][   T38]  ? __pfx_kthread+0x10/0x10
[  344.886752][   T38]  ret_from_fork_asm+0x1a/0x30
[  344.886787][   T38]  </TASK>
[  344.887222][   T38] Kernel Offset: disabled