e8 ff ff ff f7 d8 64 89 01 48
[  266.829106][ T4546] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  266.837518][ T4546] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  266.845503][ T4546] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  266.853596][ T4546] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  266.861611][ T4546] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  266.870073][ T4546] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  266.878150][ T4546]  </TASK>
[  266.882860][ T4546] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  266.896595][ T4546] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  267.283935][ T4547] loop1: detected capacity change from 0 to 32768
[  267.387376][ T4547] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  267.405523][ T4547] CPU: 1 PID: 4547 Comm: syz.1.167 Not tainted syzkaller #0
[  267.413214][ T4547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  267.423913][ T4547] Call Trace:
[  267.427244][ T4547]  <TASK>
[  267.431622][ T4547]  dump_stack_lvl+0x188/0x250
[  267.436554][ T4547]  ? show_regs_print_info+0x20/0x20
[  267.441887][ T4547]  ? load_image+0x400/0x400
[  267.446440][ T4547]  sysfs_create_dir_ns+0x26a/0x290
[  267.451667][ T4547]  ? sysfs_warn_dup+0xa0/0xa0
[  267.456815][ T4547]  ? do_raw_spin_unlock+0x11d/0x230
[  267.462220][ T4547]  kobject_add_internal+0x6e0/0xd90
[  267.468570][ T4547]  kobject_init_and_add+0x128/0x190
[  267.473770][ T4547]  ? lockdep_softirqs_off+0x430/0x430
[  267.479141][ T4547]  ? kobject_add+0x230/0x230
[  267.483951][ T4547]  ? __init_swait_queue_head+0xa5/0x150
[  267.489695][ T4547]  gfs2_sys_fs_add+0x24f/0x4b0
[  267.494561][ T4547]  ? gfs2_recover_set+0x240/0x240
[  267.499880][ T4547]  ? snprintf+0xe5/0x140
[  267.504511][ T4547]  ? __free_pages+0x95/0x1a0
[  267.509658][ T4547]  ? vscnprintf+0x80/0x80
[  267.514560][ T4547]  gfs2_fill_super+0x120f/0x1f00
[  267.520232][ T4547]  ? gfs2_reconfigure+0xd30/0xd30
[  267.525573][ T4547]  ? sb_set_blocksize+0xa5/0xe0
[  267.530444][ T4547]  get_tree_bdev+0x3f1/0x610
[  267.535405][ T4547]  ? gfs2_reconfigure+0xd30/0xd30
[  267.540983][ T4547]  gfs2_get_tree+0x4d/0x1e0
[  267.545784][ T4547]  vfs_get_tree+0x88/0x270
[  267.550307][ T4547]  do_new_mount+0x24a/0xa40
[  267.554905][ T4547]  __se_sys_mount+0x2e3/0x3d0
[  267.559759][ T4547]  ? __x64_sys_mount+0xc0/0xc0
[  267.564570][ T4547]  ? lockdep_hardirqs_on+0x94/0x140
[  267.569935][ T4547]  ? __x64_sys_mount+0x1c/0xc0
[  267.574876][ T4547]  do_syscall_64+0x4c/0xa0
[  267.579301][ T4547]  ? clear_bhb_loop+0x30/0x80
[  267.584226][ T4547]  ? clear_bhb_loop+0x30/0x80
[  267.588893][ T4547]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  267.594979][ T4547] RIP: 0033:0x7f1c632dbf4a
[  267.600044][ T4547] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  267.621136][ T4547] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  267.630009][ T4547] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  267.639130][ T4547] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  267.647361][ T4547] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  267.656410][ T4547] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  267.664915][ T4547] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  267.673672][ T4547]  </TASK>
[  267.678723][ T4547] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  267.693357][ T4547] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.061875][ T4548] loop1: detected capacity change from 0 to 32768
[  268.072131][ T4548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.083247][ T4548] CPU: 0 PID: 4548 Comm: syz.1.168 Not tainted syzkaller #0
[  268.091770][ T4548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  268.102302][ T4548] Call Trace:
[  268.105715][ T4548]  <TASK>
[  268.108854][ T4548]  dump_stack_lvl+0x188/0x250
[  268.113960][ T4548]  ? show_regs_print_info+0x20/0x20
[  268.119307][ T4548]  ? load_image+0x400/0x400
[  268.124050][ T4548]  sysfs_create_dir_ns+0x26a/0x290
[  268.129310][ T4548]  ? sysfs_warn_dup+0xa0/0xa0
[  268.134017][ T4548]  ? do_raw_spin_unlock+0x11d/0x230
[  268.139360][ T4548]  kobject_add_internal+0x6e0/0xd90
[  268.144851][ T4548]  kobject_init_and_add+0x128/0x190
[  268.150348][ T4548]  ? lockdep_softirqs_off+0x430/0x430
[  268.156141][ T4548]  ? kobject_add+0x230/0x230
[  268.161198][ T4548]  ? __init_swait_queue_head+0xa5/0x150
[  268.167254][ T4548]  gfs2_sys_fs_add+0x24f/0x4b0
[  268.172726][ T4548]  ? gfs2_recover_set+0x240/0x240
[  268.177860][ T4548]  ? snprintf+0xe5/0x140
[  268.182249][ T4548]  ? __free_pages+0x95/0x1a0
[  268.187231][ T4548]  ? vscnprintf+0x80/0x80
[  268.191754][ T4548]  gfs2_fill_super+0x120f/0x1f00
[  268.196960][ T4548]  ? gfs2_reconfigure+0xd30/0xd30
[  268.202107][ T4548]  ? sb_set_blocksize+0xa5/0xe0
[  268.207089][ T4548]  get_tree_bdev+0x3f1/0x610
[  268.211955][ T4548]  ? gfs2_reconfigure+0xd30/0xd30
[  268.217012][ T4548]  gfs2_get_tree+0x4d/0x1e0
[  268.222313][ T4548]  vfs_get_tree+0x88/0x270
[  268.227191][ T4548]  do_new_mount+0x24a/0xa40
[  268.232050][ T4548]  __se_sys_mount+0x2e3/0x3d0
[  268.237177][ T4548]  ? __x64_sys_mount+0xc0/0xc0
[  268.242344][ T4548]  ? lockdep_hardirqs_on+0x94/0x140
[  268.247640][ T4548]  ? __x64_sys_mount+0x1c/0xc0
[  268.252702][ T4548]  do_syscall_64+0x4c/0xa0
[  268.257226][ T4548]  ? clear_bhb_loop+0x30/0x80
[  268.262357][ T4548]  ? clear_bhb_loop+0x30/0x80
[  268.267336][ T4548]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  268.273312][ T4548] RIP: 0033:0x7f1c632dbf4a
[  268.277847][ T4548] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  268.299114][ T4548] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  268.308410][ T4548] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  268.316782][ T4548] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  268.325103][ T4548] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  268.333533][ T4548] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  268.341673][ T4548] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  268.349853][ T4548]  </TASK>
[  268.354360][ T4548] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  268.368494][ T4548] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  268.735688][ T4549] loop1: detected capacity change from 0 to 32768
[  268.817540][ T4549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  268.826291][ T4549] CPU: 0 PID: 4549 Comm: syz.1.169 Not tainted syzkaller #0
[  268.833821][ T4549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  268.844196][ T4549] Call Trace:
[  268.847496][ T4549]  <TASK>
[  268.850547][ T4549]  dump_stack_lvl+0x188/0x250
[  268.855273][ T4549]  ? show_regs_print_info+0x20/0x20
[  268.860516][ T4549]  ? load_image+0x400/0x400
[  268.865346][ T4549]  sysfs_create_dir_ns+0x26a/0x290
[  268.870772][ T4549]  ? sysfs_warn_dup+0xa0/0xa0
[  268.875965][ T4549]  ? do_raw_spin_unlock+0x11d/0x230
[  268.881377][ T4549]  kobject_add_internal+0x6e0/0xd90
[  268.887141][ T4549]  kobject_init_and_add+0x128/0x190
[  268.892574][ T4549]  ? lockdep_softirqs_off+0x430/0x430
[  268.898297][ T4549]  ? kobject_add+0x230/0x230
[  268.903175][ T4549]  ? __init_swait_queue_head+0xa5/0x150
[  268.909372][ T4549]  gfs2_sys_fs_add+0x24f/0x4b0
[  268.914486][ T4549]  ? gfs2_recover_set+0x240/0x240
[  268.920064][ T4549]  ? snprintf+0xe5/0x140
[  268.924298][ T4549]  ? __free_pages+0x95/0x1a0
[  268.928880][ T4549]  ? vscnprintf+0x80/0x80
[  268.933221][ T4549]  gfs2_fill_super+0x120f/0x1f00
[  268.938432][ T4549]  ? gfs2_reconfigure+0xd30/0xd30
[  268.943661][ T4549]  ? sb_set_blocksize+0xa5/0xe0
[  268.948596][ T4549]  get_tree_bdev+0x3f1/0x610
[  268.953179][ T4549]  ? gfs2_reconfigure+0xd30/0xd30
[  268.958545][ T4549]  gfs2_get_tree+0x4d/0x1e0
[  268.963173][ T4549]  vfs_get_tree+0x88/0x270
[  268.967873][ T4549]  do_new_mount+0x24a/0xa40
[  268.973218][ T4549]  __se_sys_mount+0x2e3/0x3d0
[  268.978173][ T4549]  ? __x64_sys_mount+0xc0/0xc0
[  268.983627][ T4549]  ? lockdep_hardirqs_on+0x94/0x140
[  268.989015][ T4549]  ? __x64_sys_mount+0x1c/0xc0
[  268.994055][ T4549]  do_syscall_64+0x4c/0xa0
[  268.998565][ T4549]  ? clear_bhb_loop+0x30/0x80
[  269.003608][ T4549]  ? clear_bhb_loop+0x30/0x80
[  269.008293][ T4549]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  269.014184][ T4549] RIP: 0033:0x7f1c632dbf4a
[  269.018680][ T4549] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  269.038640][ T4549] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.047154][ T4549] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  269.055381][ T4549] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  269.063536][ T4549] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  269.071510][ T4549] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  269.079497][ T4549] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  269.087571][ T4549]  </TASK>
[  269.092555][ T4549] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.106587][ T4549] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  269.439643][ T4550] loop1: detected capacity change from 0 to 32768
[  269.501705][ T4550] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  269.509601][ T4550] CPU: 0 PID: 4550 Comm: syz.1.170 Not tainted syzkaller #0
[  269.517454][ T4550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  269.528436][ T4550] Call Trace:
[  269.532059][ T4550]  <TASK>
[  269.535026][ T4550]  dump_stack_lvl+0x188/0x250
[  269.540006][ T4550]  ? show_regs_print_info+0x20/0x20
[  269.545626][ T4550]  ? load_image+0x400/0x400
[  269.550189][ T4550]  sysfs_create_dir_ns+0x26a/0x290
[  269.555354][ T4550]  ? sysfs_warn_dup+0xa0/0xa0
[  269.560877][ T4550]  ? do_raw_spin_unlock+0x11d/0x230
[  269.566410][ T4550]  kobject_add_internal+0x6e0/0xd90
[  269.572011][ T4550]  kobject_init_and_add+0x128/0x190
[  269.577414][ T4550]  ? lockdep_softirqs_off+0x430/0x430
[  269.582999][ T4550]  ? kobject_add+0x230/0x230
[  269.587752][ T4550]  ? __init_swait_queue_head+0xa5/0x150
[  269.593456][ T4550]  gfs2_sys_fs_add+0x24f/0x4b0
[  269.598265][ T4550]  ? gfs2_recover_set+0x240/0x240
[  269.603448][ T4550]  ? snprintf+0xe5/0x140
[  269.607711][ T4550]  ? __free_pages+0x95/0x1a0
[  269.612369][ T4550]  ? vscnprintf+0x80/0x80
[  269.616844][ T4550]  gfs2_fill_super+0x120f/0x1f00
[  269.621982][ T4550]  ? gfs2_reconfigure+0xd30/0xd30
[  269.627306][ T4550]  ? sb_set_blocksize+0xa5/0xe0
[  269.632248][ T4550]  get_tree_bdev+0x3f1/0x610
[  269.637032][ T4550]  ? gfs2_reconfigure+0xd30/0xd30
[  269.642634][ T4550]  gfs2_get_tree+0x4d/0x1e0
[  269.647638][ T4550]  vfs_get_tree+0x88/0x270
[  269.652748][ T4550]  do_new_mount+0x24a/0xa40
[  269.657700][ T4550]  __se_sys_mount+0x2e3/0x3d0
[  269.662896][ T4550]  ? __x64_sys_mount+0xc0/0xc0
[  269.667894][ T4550]  ? lockdep_hardirqs_on+0x94/0x140
[  269.673534][ T4550]  ? __x64_sys_mount+0x1c/0xc0
[  269.678472][ T4550]  do_syscall_64+0x4c/0xa0
[  269.683072][ T4550]  ? clear_bhb_loop+0x30/0x80
[  269.688191][ T4550]  ? clear_bhb_loop+0x30/0x80
[  269.693190][ T4550]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  269.699183][ T4550] RIP: 0033:0x7f1c632dbf4a
[  269.704048][ T4550] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  269.724675][ T4550] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  269.733442][ T4550] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  269.741724][ T4550] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  269.750311][ T4550] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  269.758490][ T4550] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  269.766746][ T4550] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  269.774899][ T4550]  </TASK>
[  269.785112][ T4550] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  269.799700][ T4550] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.165310][ T4551] loop1: detected capacity change from 0 to 32768
[  270.218719][ T4551] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.227045][ T4551] CPU: 0 PID: 4551 Comm: syz.1.171 Not tainted syzkaller #0
[  270.234949][ T4551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.245687][ T4551] Call Trace:
[  270.249178][ T4551]  <TASK>
[  270.252569][ T4551]  dump_stack_lvl+0x188/0x250
[  270.257549][ T4551]  ? show_regs_print_info+0x20/0x20
[  270.262886][ T4551]  ? load_image+0x400/0x400
[  270.267812][ T4551]  sysfs_create_dir_ns+0x26a/0x290
[  270.273135][ T4551]  ? sysfs_warn_dup+0xa0/0xa0
[  270.278136][ T4551]  ? do_raw_spin_unlock+0x11d/0x230
[  270.283682][ T4551]  kobject_add_internal+0x6e0/0xd90
[  270.289380][ T4551]  kobject_init_and_add+0x128/0x190
[  270.295061][ T4551]  ? lockdep_softirqs_off+0x430/0x430
[  270.300638][ T4551]  ? kobject_add+0x230/0x230
[  270.305253][ T4551]  ? __init_swait_queue_head+0xa5/0x150
[  270.310810][ T4551]  gfs2_sys_fs_add+0x24f/0x4b0
[  270.315855][ T4551]  ? gfs2_recover_set+0x240/0x240
[  270.321057][ T4551]  ? snprintf+0xe5/0x140
[  270.325511][ T4551]  ? __free_pages+0x95/0x1a0
[  270.330742][ T4551]  ? vscnprintf+0x80/0x80
[  270.335359][ T4551]  gfs2_fill_super+0x120f/0x1f00
[  270.340710][ T4551]  ? gfs2_reconfigure+0xd30/0xd30
[  270.345878][ T4551]  ? sb_set_blocksize+0xa5/0xe0
[  270.350899][ T4551]  get_tree_bdev+0x3f1/0x610
[  270.356084][ T4551]  ? gfs2_reconfigure+0xd30/0xd30
[  270.361739][ T4551]  gfs2_get_tree+0x4d/0x1e0
[  270.366458][ T4551]  vfs_get_tree+0x88/0x270
[  270.371153][ T4551]  do_new_mount+0x24a/0xa40
[  270.376918][ T4551]  __se_sys_mount+0x2e3/0x3d0
[  270.382038][ T4551]  ? __x64_sys_mount+0xc0/0xc0
[  270.387797][ T4551]  ? lockdep_hardirqs_on+0x94/0x140
[  270.396132][ T4551]  ? __x64_sys_mount+0x1c/0xc0
[  270.401078][ T4551]  do_syscall_64+0x4c/0xa0
[  270.406398][ T4551]  ? clear_bhb_loop+0x30/0x80
[  270.411755][ T4551]  ? clear_bhb_loop+0x30/0x80
[  270.416943][ T4551]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  270.423388][ T4551] RIP: 0033:0x7f1c632dbf4a
[  270.428081][ T4551] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  270.449281][ T4551] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  270.458044][ T4551] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  270.466654][ T4551] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  270.474728][ T4551] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  270.482858][ T4551] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  270.491396][ T4551] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  270.500348][ T4551]  </TASK>
[  270.504988][ T4551] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  270.519201][ T4551] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  270.882630][ T4552] loop1: detected capacity change from 0 to 32768
[  270.939893][ T4552] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  270.947812][ T4552] CPU: 0 PID: 4552 Comm: syz.1.172 Not tainted syzkaller #0
[  270.955581][ T4552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  270.966384][ T4552] Call Trace:
[  270.969892][ T4552]  <TASK>
[  270.973193][ T4552]  dump_stack_lvl+0x188/0x250
[  270.978371][ T4552]  ? show_regs_print_info+0x20/0x20
[  270.983913][ T4552]  ? load_image+0x400/0x400
[  270.988579][ T4552]  sysfs_create_dir_ns+0x26a/0x290
[  270.993909][ T4552]  ? sysfs_warn_dup+0xa0/0xa0
[  270.998708][ T4552]  ? do_raw_spin_unlock+0x11d/0x230
[  271.004032][ T4552]  kobject_add_internal+0x6e0/0xd90
[  271.009461][ T4552]  kobject_init_and_add+0x128/0x190
[  271.014881][ T4552]  ? lockdep_softirqs_off+0x430/0x430
[  271.020653][ T4552]  ? kobject_add+0x230/0x230
[  271.025889][ T4552]  ? __init_swait_queue_head+0xa5/0x150
[  271.032345][ T4552]  gfs2_sys_fs_add+0x24f/0x4b0
[  271.037529][ T4552]  ? gfs2_recover_set+0x240/0x240
[  271.042659][ T4552]  ? snprintf+0xe5/0x140
[  271.047017][ T4552]  ? __free_pages+0x95/0x1a0
[  271.051966][ T4552]  ? vscnprintf+0x80/0x80
[  271.056521][ T4552]  gfs2_fill_super+0x120f/0x1f00
[  271.061870][ T4552]  ? gfs2_reconfigure+0xd30/0xd30
[  271.067120][ T4552]  ? sb_set_blocksize+0xa5/0xe0
[  271.072353][ T4552]  get_tree_bdev+0x3f1/0x610
[  271.077159][ T4552]  ? gfs2_reconfigure+0xd30/0xd30
[  271.082535][ T4552]  gfs2_get_tree+0x4d/0x1e0
[  271.087940][ T4552]  vfs_get_tree+0x88/0x270
[  271.092560][ T4552]  do_new_mount+0x24a/0xa40
[  271.097258][ T4552]  __se_sys_mount+0x2e3/0x3d0
[  271.102896][ T4552]  ? __x64_sys_mount+0xc0/0xc0
[  271.107767][ T4552]  ? lockdep_hardirqs_on+0x94/0x140
[  271.113051][ T4552]  ? __x64_sys_mount+0x1c/0xc0
[  271.118157][ T4552]  do_syscall_64+0x4c/0xa0
[  271.122807][ T4552]  ? clear_bhb_loop+0x30/0x80
[  271.128023][ T4552]  ? clear_bhb_loop+0x30/0x80
[  271.133147][ T4552]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.139700][ T4552] RIP: 0033:0x7f1c632dbf4a
[  271.144420][ T4552] 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
[  271.165683][ T4552] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.174790][ T4552] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  271.183230][ T4552] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  271.191372][ T4552] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  271.199427][ T4552] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  271.207636][ T4552] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  271.215792][ T4552]  </TASK>
[  271.221443][ T4552] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.234877][ T4552] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/25 07:59:04 executed programs: 158
[  271.592744][ T4553] loop1: detected capacity change from 0 to 32768
[  271.657491][ T4553] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  271.666246][ T4553] CPU: 0 PID: 4553 Comm: syz.1.173 Not tainted syzkaller #0
[  271.674539][ T4553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  271.685649][ T4553] Call Trace:
[  271.689225][ T4553]  <TASK>
[  271.692378][ T4553]  dump_stack_lvl+0x188/0x250
[  271.697269][ T4553]  ? show_regs_print_info+0x20/0x20
[  271.703393][ T4553]  ? load_image+0x400/0x400
[  271.708132][ T4553]  sysfs_create_dir_ns+0x26a/0x290
[  271.713665][ T4553]  ? sysfs_warn_dup+0xa0/0xa0
[  271.718681][ T4553]  ? do_raw_spin_unlock+0x11d/0x230
[  271.724479][ T4553]  kobject_add_internal+0x6e0/0xd90
[  271.729943][ T4553]  kobject_init_and_add+0x128/0x190
[  271.735379][ T4553]  ? lockdep_softirqs_off+0x430/0x430
[  271.740890][ T4553]  ? kobject_add+0x230/0x230
[  271.745599][ T4553]  ? __init_swait_queue_head+0xa5/0x150
[  271.751236][ T4553]  gfs2_sys_fs_add+0x24f/0x4b0
[  271.756122][ T4553]  ? gfs2_recover_set+0x240/0x240
[  271.761239][ T4553]  ? snprintf+0xe5/0x140
[  271.765565][ T4553]  ? __free_pages+0x95/0x1a0
[  271.770350][ T4553]  ? vscnprintf+0x80/0x80
[  271.775124][ T4553]  gfs2_fill_super+0x120f/0x1f00
[  271.780409][ T4553]  ? gfs2_reconfigure+0xd30/0xd30
[  271.785610][ T4553]  ? sb_set_blocksize+0xa5/0xe0
[  271.790795][ T4553]  get_tree_bdev+0x3f1/0x610
[  271.795634][ T4553]  ? gfs2_reconfigure+0xd30/0xd30
[  271.800848][ T4553]  gfs2_get_tree+0x4d/0x1e0
[  271.805382][ T4553]  vfs_get_tree+0x88/0x270
[  271.810554][ T4553]  do_new_mount+0x24a/0xa40
[  271.815330][ T4553]  __se_sys_mount+0x2e3/0x3d0
[  271.820304][ T4553]  ? __x64_sys_mount+0xc0/0xc0
[  271.825433][ T4553]  ? lockdep_hardirqs_on+0x94/0x140
[  271.831021][ T4553]  ? __x64_sys_mount+0x1c/0xc0
[  271.835789][ T4553]  do_syscall_64+0x4c/0xa0
[  271.840255][ T4553]  ? clear_bhb_loop+0x30/0x80
[  271.845094][ T4553]  ? clear_bhb_loop+0x30/0x80
[  271.850263][ T4553]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  271.856971][ T4553] RIP: 0033:0x7f1c632dbf4a
[  271.861812][ T4553] 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
[  271.881894][ T4553] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  271.891383][ T4553] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  271.899568][ T4553] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  271.907558][ T4553] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  271.915526][ T4553] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  271.923488][ T4553] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  271.931572][ T4553]  </TASK>
[  271.939529][ T4553] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  271.953512][ T4553] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  272.316756][ T4554] loop1: detected capacity change from 0 to 32768
[  272.369138][ T4554] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  272.377212][ T4554] CPU: 0 PID: 4554 Comm: syz.1.174 Not tainted syzkaller #0
[  272.384938][ T4554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  272.395506][ T4554] Call Trace:
[  272.399162][ T4554]  <TASK>
[  272.402339][ T4554]  dump_stack_lvl+0x188/0x250
[  272.407400][ T4554]  ? show_regs_print_info+0x20/0x20
[  272.413119][ T4554]  ? load_image+0x400/0x400
[  272.417775][ T4554]  sysfs_create_dir_ns+0x26a/0x290
[  272.423307][ T4554]  ? sysfs_warn_dup+0xa0/0xa0
[  272.428996][ T4554]  ? do_raw_spin_unlock+0x11d/0x230
[  272.434356][ T4554]  kobject_add_internal+0x6e0/0xd90
[  272.439883][ T4554]  kobject_init_and_add+0x128/0x190
[  272.446007][ T4554]  ? lockdep_softirqs_off+0x430/0x430
[  272.451972][ T4554]  ? kobject_add+0x230/0x230
[  272.457096][ T4554]  ? __init_swait_queue_head+0xa5/0x150
[  272.463748][ T4554]  gfs2_sys_fs_add+0x24f/0x4b0
[  272.469409][ T4554]  ? gfs2_recover_set+0x240/0x240
[  272.475115][ T4554]  ? snprintf+0xe5/0x140
[  272.480199][ T4554]  ? __free_pages+0x95/0x1a0
[  272.485098][ T4554]  ? vscnprintf+0x80/0x80
[  272.490140][ T4554]  gfs2_fill_super+0x120f/0x1f00
[  272.495357][ T4554]  ? gfs2_reconfigure+0xd30/0xd30
[  272.501110][ T4554]  ? sb_set_blocksize+0xa5/0xe0
[  272.505974][ T4554]  get_tree_bdev+0x3f1/0x610
[  272.511264][ T4554]  ? gfs2_reconfigure+0xd30/0xd30
[  272.516737][ T4554]  gfs2_get_tree+0x4d/0x1e0
[  272.521552][ T4554]  vfs_get_tree+0x88/0x270
[  272.526263][ T4554]  do_new_mount+0x24a/0xa40
[  272.531345][ T4554]  __se_sys_mount+0x2e3/0x3d0
[  272.536746][ T4554]  ? __x64_sys_mount+0xc0/0xc0
[  272.549767][ T4554]  ? lockdep_hardirqs_on+0x94/0x140
[  272.556116][ T4554]  ? __x64_sys_mount+0x1c/0xc0
[  272.561155][ T4554]  do_syscall_64+0x4c/0xa0
[  272.565827][ T4554]  ? clear_bhb_loop+0x30/0x80
[  272.571166][ T4554]  ? clear_bhb_loop+0x30/0x80
[  272.576210][ T4554]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  272.582552][ T4554] RIP: 0033:0x7f1c632dbf4a
[  272.587200][ T4554] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  272.608424][ T4554] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  272.617466][ T4554] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  272.626454][ T4554] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  272.635429][ T4554] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  272.643924][ T4554] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  272.654530][ T4554] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  272.663534][ T4554]  </TASK>
[  272.668893][ T4554] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  272.683065][ T4554] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.056849][ T4555] loop1: detected capacity change from 0 to 32768
[  273.105001][ T4555] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.113057][ T4555] CPU: 1 PID: 4555 Comm: syz.1.175 Not tainted syzkaller #0
[  273.121236][ T4555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.132286][ T4555] Call Trace:
[  273.135783][ T4555]  <TASK>
[  273.138980][ T4555]  dump_stack_lvl+0x188/0x250
[  273.143895][ T4555]  ? show_regs_print_info+0x20/0x20
[  273.149313][ T4555]  ? load_image+0x400/0x400
[  273.155000][ T4555]  sysfs_create_dir_ns+0x26a/0x290
[  273.160947][ T4555]  ? sysfs_warn_dup+0xa0/0xa0
[  273.166091][ T4555]  ? do_raw_spin_unlock+0x11d/0x230
[  273.172380][ T4555]  kobject_add_internal+0x6e0/0xd90
[  273.177797][ T4555]  kobject_init_and_add+0x128/0x190
[  273.183476][ T4555]  ? lockdep_softirqs_off+0x430/0x430
[  273.189580][ T4555]  ? kobject_add+0x230/0x230
[  273.194687][ T4555]  ? __init_swait_queue_head+0xa5/0x150
[  273.200844][ T4555]  gfs2_sys_fs_add+0x24f/0x4b0
[  273.206115][ T4555]  ? gfs2_recover_set+0x240/0x240
[  273.211503][ T4555]  ? snprintf+0xe5/0x140
[  273.216922][ T4555]  ? __free_pages+0x95/0x1a0
[  273.221993][ T4555]  ? vscnprintf+0x80/0x80
[  273.226670][ T4555]  gfs2_fill_super+0x120f/0x1f00
[  273.232213][ T4555]  ? gfs2_reconfigure+0xd30/0xd30
[  273.237487][ T4555]  ? sb_set_blocksize+0xa5/0xe0
[  273.242589][ T4555]  get_tree_bdev+0x3f1/0x610
[  273.248039][ T4555]  ? gfs2_reconfigure+0xd30/0xd30
[  273.253797][ T4555]  gfs2_get_tree+0x4d/0x1e0
[  273.258671][ T4555]  vfs_get_tree+0x88/0x270
[  273.263530][ T4555]  do_new_mount+0x24a/0xa40
[  273.268823][ T4555]  __se_sys_mount+0x2e3/0x3d0
[  273.273648][ T4555]  ? __x64_sys_mount+0xc0/0xc0
[  273.278687][ T4555]  ? lockdep_hardirqs_on+0x94/0x140
[  273.284427][ T4555]  ? __x64_sys_mount+0x1c/0xc0
[  273.289884][ T4555]  do_syscall_64+0x4c/0xa0
[  273.294399][ T4555]  ? clear_bhb_loop+0x30/0x80
[  273.299557][ T4555]  ? clear_bhb_loop+0x30/0x80
[  273.305674][ T4555]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  273.312494][ T4555] RIP: 0033:0x7f1c632dbf4a
[  273.317293][ T4555] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  273.339301][ T4555] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  273.348299][ T4555] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  273.356824][ T4555] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  273.365430][ T4555] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  273.373767][ T4555] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  273.381847][ T4555] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  273.390618][ T4555]  </TASK>
[  273.395733][ T4555] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  273.410376][ T4555] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  273.789036][ T4556] loop1: detected capacity change from 0 to 32768
[  273.845622][ T4556] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  273.853491][ T4556] CPU: 0 PID: 4556 Comm: syz.1.176 Not tainted syzkaller #0
[  273.861515][ T4556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  273.872777][ T4556] Call Trace:
[  273.876186][ T4556]  <TASK>
[  273.879231][ T4556]  dump_stack_lvl+0x188/0x250
[  273.884129][ T4556]  ? show_regs_print_info+0x20/0x20
[  273.889879][ T4556]  ? load_image+0x400/0x400
[  273.895095][ T4556]  sysfs_create_dir_ns+0x26a/0x290
[  273.900876][ T4556]  ? sysfs_warn_dup+0xa0/0xa0
[  273.906065][ T4556]  ? do_raw_spin_unlock+0x11d/0x230
[  273.911480][ T4556]  kobject_add_internal+0x6e0/0xd90
[  273.917180][ T4556]  kobject_init_and_add+0x128/0x190
[  273.922823][ T4556]  ? lockdep_softirqs_off+0x430/0x430
[  273.929029][ T4556]  ? kobject_add+0x230/0x230
[  273.933918][ T4556]  ? __init_swait_queue_head+0xa5/0x150
[  273.939840][ T4556]  gfs2_sys_fs_add+0x24f/0x4b0
[  273.945004][ T4556]  ? gfs2_recover_set+0x240/0x240
[  273.950215][ T4556]  ? snprintf+0xe5/0x140
[  273.954663][ T4556]  ? __free_pages+0x95/0x1a0
[  273.959725][ T4556]  ? vscnprintf+0x80/0x80
[  273.964413][ T4556]  gfs2_fill_super+0x120f/0x1f00
[  273.969772][ T4556]  ? gfs2_reconfigure+0xd30/0xd30
[  273.974959][ T4556]  ? sb_set_blocksize+0xa5/0xe0
[  273.980117][ T4556]  get_tree_bdev+0x3f1/0x610
[  273.985171][ T4556]  ? gfs2_reconfigure+0xd30/0xd30
[  273.990769][ T4556]  gfs2_get_tree+0x4d/0x1e0
[  273.996165][ T4556]  vfs_get_tree+0x88/0x270
[  274.001015][ T4556]  do_new_mount+0x24a/0xa40
[  274.006070][ T4556]  __se_sys_mount+0x2e3/0x3d0
[  274.011151][ T4556]  ? __x64_sys_mount+0xc0/0xc0
[  274.017659][ T4556]  ? lockdep_hardirqs_on+0x94/0x140
[  274.023077][ T4556]  ? __x64_sys_mount+0x1c/0xc0
[  274.028192][ T4556]  do_syscall_64+0x4c/0xa0
[  274.032974][ T4556]  ? clear_bhb_loop+0x30/0x80
[  274.038129][ T4556]  ? clear_bhb_loop+0x30/0x80
[  274.043104][ T4556]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.049272][ T4556] RIP: 0033:0x7f1c632dbf4a
[  274.054511][ T4556] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  274.076802][ T4556] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.086182][ T4556] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  274.095307][ T4556] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  274.103895][ T4556] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  274.112063][ T4556] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  274.120230][ T4556] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  274.128685][ T4556]  </TASK>
[  274.139651][ T4556] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.154277][ T4556] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  274.524404][ T4557] loop1: detected capacity change from 0 to 32768
[  274.579424][ T4557] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  274.587478][ T4557] CPU: 1 PID: 4557 Comm: syz.1.177 Not tainted syzkaller #0
[  274.595246][ T4557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  274.605430][ T4557] Call Trace:
[  274.608839][ T4557]  <TASK>
[  274.611818][ T4557]  dump_stack_lvl+0x188/0x250
[  274.616714][ T4557]  ? show_regs_print_info+0x20/0x20
[  274.622137][ T4557]  ? load_image+0x400/0x400
[  274.626806][ T4557]  sysfs_create_dir_ns+0x26a/0x290
[  274.632547][ T4557]  ? sysfs_warn_dup+0xa0/0xa0
[  274.637552][ T4557]  ? do_raw_spin_unlock+0x11d/0x230
[  274.642877][ T4557]  kobject_add_internal+0x6e0/0xd90
[  274.648320][ T4557]  kobject_init_and_add+0x128/0x190
[  274.653728][ T4557]  ? lockdep_softirqs_off+0x430/0x430
[  274.659653][ T4557]  ? kobject_add+0x230/0x230
[  274.664657][ T4557]  ? __init_swait_queue_head+0xa5/0x150
[  274.670414][ T4557]  gfs2_sys_fs_add+0x24f/0x4b0
[  274.675375][ T4557]  ? gfs2_recover_set+0x240/0x240
[  274.680616][ T4557]  ? snprintf+0xe5/0x140
[  274.685006][ T4557]  ? __free_pages+0x95/0x1a0
[  274.689872][ T4557]  ? vscnprintf+0x80/0x80
[  274.694597][ T4557]  gfs2_fill_super+0x120f/0x1f00
[  274.699634][ T4557]  ? gfs2_reconfigure+0xd30/0xd30
[  274.704771][ T4557]  ? sb_set_blocksize+0xa5/0xe0
[  274.709616][ T4557]  get_tree_bdev+0x3f1/0x610
[  274.714304][ T4557]  ? gfs2_reconfigure+0xd30/0xd30
[  274.719912][ T4557]  gfs2_get_tree+0x4d/0x1e0
[  274.724620][ T4557]  vfs_get_tree+0x88/0x270
[  274.729338][ T4557]  do_new_mount+0x24a/0xa40
[  274.734283][ T4557]  __se_sys_mount+0x2e3/0x3d0
[  274.739150][ T4557]  ? __x64_sys_mount+0xc0/0xc0
[  274.744201][ T4557]  ? lockdep_hardirqs_on+0x94/0x140
[  274.749501][ T4557]  ? __x64_sys_mount+0x1c/0xc0
[  274.754393][ T4557]  do_syscall_64+0x4c/0xa0
[  274.759090][ T4557]  ? clear_bhb_loop+0x30/0x80
[  274.764384][ T4557]  ? clear_bhb_loop+0x30/0x80
[  274.769608][ T4557]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  274.775907][ T4557] RIP: 0033:0x7f1c632dbf4a
[  274.780766][ T4557] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  274.801363][ T4557] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  274.810310][ T4557] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  274.819812][ T4557] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  274.828682][ T4557] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  274.838469][ T4557] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  274.846845][ T4557] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  274.855443][ T4557]  </TASK>
[  274.859947][ T4557] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  274.875736][ T4557] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.209639][ T4558] loop1: detected capacity change from 0 to 32768
[  275.228112][ T4558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.237167][ T4558] CPU: 1 PID: 4558 Comm: syz.1.178 Not tainted syzkaller #0
[  275.244888][ T4558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.255573][ T4558] Call Trace:
[  275.259123][ T4558]  <TASK>
[  275.262258][ T4558]  dump_stack_lvl+0x188/0x250
[  275.267142][ T4558]  ? show_regs_print_info+0x20/0x20
[  275.272752][ T4558]  ? load_image+0x400/0x400
[  275.277813][ T4558]  sysfs_create_dir_ns+0x26a/0x290
[  275.284113][ T4558]  ? sysfs_warn_dup+0xa0/0xa0
[  275.289284][ T4558]  ? do_raw_spin_unlock+0x11d/0x230
[  275.294885][ T4558]  kobject_add_internal+0x6e0/0xd90
[  275.301103][ T4558]  kobject_init_and_add+0x128/0x190
[  275.306614][ T4558]  ? lockdep_softirqs_off+0x430/0x430
[  275.312403][ T4558]  ? kobject_add+0x230/0x230
[  275.317443][ T4558]  ? __init_swait_queue_head+0xa5/0x150
[  275.323559][ T4558]  gfs2_sys_fs_add+0x24f/0x4b0
[  275.329230][ T4558]  ? gfs2_recover_set+0x240/0x240
[  275.335887][ T4558]  ? snprintf+0xe5/0x140
[  275.340740][ T4558]  ? __free_pages+0x95/0x1a0
[  275.345986][ T4558]  ? vscnprintf+0x80/0x80
[  275.351324][ T4558]  gfs2_fill_super+0x120f/0x1f00
[  275.356654][ T4558]  ? gfs2_reconfigure+0xd30/0xd30
[  275.362224][ T4558]  ? sb_set_blocksize+0xa5/0xe0
[  275.367451][ T4558]  get_tree_bdev+0x3f1/0x610
[  275.372698][ T4558]  ? gfs2_reconfigure+0xd30/0xd30
[  275.377941][ T4558]  gfs2_get_tree+0x4d/0x1e0
[  275.382788][ T4558]  vfs_get_tree+0x88/0x270
[  275.387749][ T4558]  do_new_mount+0x24a/0xa40
[  275.392338][ T4558]  __se_sys_mount+0x2e3/0x3d0
[  275.397406][ T4558]  ? __x64_sys_mount+0xc0/0xc0
[  275.403292][ T4558]  ? lockdep_hardirqs_on+0x94/0x140
[  275.408856][ T4558]  ? __x64_sys_mount+0x1c/0xc0
[  275.413909][ T4558]  do_syscall_64+0x4c/0xa0
[  275.419037][ T4558]  ? clear_bhb_loop+0x30/0x80
[  275.424063][ T4558]  ? clear_bhb_loop+0x30/0x80
[  275.430007][ T4558]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  275.437230][ T4558] RIP: 0033:0x7f1c632dbf4a
[  275.442350][ T4558] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  275.464740][ T4558] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  275.473912][ T4558] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  275.482771][ T4558] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  275.491990][ T4558] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  275.500976][ T4558] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  275.509221][ T4558] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  275.517817][ T4558]  </TASK>
[  275.522644][ T4558] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  275.537135][ T4558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  275.876563][ T4559] loop1: detected capacity change from 0 to 32768
[  275.945493][ T4559] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  275.953976][ T4559] CPU: 0 PID: 4559 Comm: syz.1.179 Not tainted syzkaller #0
[  275.961988][ T4559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  275.972470][ T4559] Call Trace:
[  275.976051][ T4559]  <TASK>
[  275.979036][ T4559]  dump_stack_lvl+0x188/0x250
[  275.984018][ T4559]  ? show_regs_print_info+0x20/0x20
[  275.990329][ T4559]  ? load_image+0x400/0x400
[  275.995776][ T4559]  sysfs_create_dir_ns+0x26a/0x290
[  276.001466][ T4559]  ? sysfs_warn_dup+0xa0/0xa0
[  276.007330][ T4559]  ? do_raw_spin_unlock+0x11d/0x230
[  276.013385][ T4559]  kobject_add_internal+0x6e0/0xd90
[  276.018995][ T4559]  kobject_init_and_add+0x128/0x190
[  276.025354][ T4559]  ? lockdep_softirqs_off+0x430/0x430
[  276.031384][ T4559]  ? kobject_add+0x230/0x230
[  276.036508][ T4559]  ? __init_swait_queue_head+0xa5/0x150
[  276.043213][ T4559]  gfs2_sys_fs_add+0x24f/0x4b0
[  276.048356][ T4559]  ? gfs2_recover_set+0x240/0x240
[  276.053664][ T4559]  ? snprintf+0xe5/0x140
[  276.058334][ T4559]  ? __free_pages+0x95/0x1a0
[  276.063026][ T4559]  ? vscnprintf+0x80/0x80
[  276.068019][ T4559]  gfs2_fill_super+0x120f/0x1f00
[  276.073674][ T4559]  ? gfs2_reconfigure+0xd30/0xd30
[  276.079767][ T4559]  ? sb_set_blocksize+0xa5/0xe0
[  276.085270][ T4559]  get_tree_bdev+0x3f1/0x610
[  276.090136][ T4559]  ? gfs2_reconfigure+0xd30/0xd30
[  276.095732][ T4559]  gfs2_get_tree+0x4d/0x1e0
[  276.100415][ T4559]  vfs_get_tree+0x88/0x270
[  276.105290][ T4559]  do_new_mount+0x24a/0xa40
[  276.109980][ T4559]  __se_sys_mount+0x2e3/0x3d0
[  276.114789][ T4559]  ? __x64_sys_mount+0xc0/0xc0
[  276.121623][ T4559]  ? lockdep_hardirqs_on+0x94/0x140
[  276.127936][ T4559]  ? __x64_sys_mount+0x1c/0xc0
[  276.133670][ T4559]  do_syscall_64+0x4c/0xa0
[  276.138362][ T4559]  ? clear_bhb_loop+0x30/0x80
[  276.147981][ T4559]  ? clear_bhb_loop+0x30/0x80
[  276.153543][ T4559]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.160000][ T4559] RIP: 0033:0x7f1c632dbf4a
[  276.164959][ T4559] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  276.186713][ T4559] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.196057][ T4559] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  276.204282][ T4559] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  276.213268][ T4559] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  276.221898][ T4559] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  276.231317][ T4559] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  276.240924][ T4559]  </TASK>
[  276.256041][ T4559] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  276.280868][ T4559] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/25 07:59:09 executed programs: 165
[  276.670613][ T4560] loop1: detected capacity change from 0 to 32768
[  276.691494][ T4560] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  276.700384][ T4560] CPU: 1 PID: 4560 Comm: syz.1.180 Not tainted syzkaller #0
[  276.708219][ T4560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  276.718932][ T4560] Call Trace:
[  276.723047][ T4560]  <TASK>
[  276.726267][ T4560]  dump_stack_lvl+0x188/0x250
[  276.731828][ T4560]  ? show_regs_print_info+0x20/0x20
[  276.738018][ T4560]  ? load_image+0x400/0x400
[  276.742663][ T4560]  sysfs_create_dir_ns+0x26a/0x290
[  276.747997][ T4560]  ? sysfs_warn_dup+0xa0/0xa0
[  276.753078][ T4560]  ? do_raw_spin_unlock+0x11d/0x230
[  276.759264][ T4560]  kobject_add_internal+0x6e0/0xd90
[  276.764689][ T4560]  kobject_init_and_add+0x128/0x190
[  276.770101][ T4560]  ? lockdep_softirqs_off+0x430/0x430
[  276.776141][ T4560]  ? kobject_add+0x230/0x230
[  276.781541][ T4560]  ? __init_swait_queue_head+0xa5/0x150
[  276.788327][ T4560]  gfs2_sys_fs_add+0x24f/0x4b0
[  276.793804][ T4560]  ? gfs2_recover_set+0x240/0x240
[  276.799298][ T4560]  ? snprintf+0xe5/0x140
[  276.804382][ T4560]  ? __free_pages+0x95/0x1a0
[  276.810872][ T4560]  ? vscnprintf+0x80/0x80
[  276.816890][ T4560]  gfs2_fill_super+0x120f/0x1f00
[  276.822788][ T4560]  ? gfs2_reconfigure+0xd30/0xd30
[  276.829316][ T4560]  ? sb_set_blocksize+0xa5/0xe0
[  276.834773][ T4560]  get_tree_bdev+0x3f1/0x610
[  276.840334][ T4560]  ? gfs2_reconfigure+0xd30/0xd30
[  276.845732][ T4560]  gfs2_get_tree+0x4d/0x1e0
[  276.850834][ T4560]  vfs_get_tree+0x88/0x270
[  276.855584][ T4560]  do_new_mount+0x24a/0xa40
[  276.861826][ T4560]  __se_sys_mount+0x2e3/0x3d0
[  276.867663][ T4560]  ? __x64_sys_mount+0xc0/0xc0
[  276.872791][ T4560]  ? lockdep_hardirqs_on+0x94/0x140
[  276.879212][ T4560]  ? __x64_sys_mount+0x1c/0xc0
[  276.884945][ T4560]  do_syscall_64+0x4c/0xa0
[  276.891082][ T4560]  ? clear_bhb_loop+0x30/0x80
[  276.896615][ T4560]  ? clear_bhb_loop+0x30/0x80
[  276.902079][ T4560]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  276.908865][ T4560] RIP: 0033:0x7f1c632dbf4a
[  276.914408][ T4560] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  276.938424][ T4560] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  276.947743][ T4560] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  276.957148][ T4560] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  276.967062][ T4560] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  276.976089][ T4560] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  276.984751][ T4560] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  276.993988][ T4560]  </TASK>
[  276.999544][ T4560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.015418][ T4560] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  277.371381][ T4561] loop1: detected capacity change from 0 to 32768
[  277.418461][ T4561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  277.435681][ T4561] CPU: 1 PID: 4561 Comm: syz.1.181 Not tainted syzkaller #0
[  277.443306][ T4561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  277.453935][ T4561] Call Trace:
[  277.458225][ T4561]  <TASK>
[  277.461449][ T4561]  dump_stack_lvl+0x188/0x250
[  277.466577][ T4561]  ? show_regs_print_info+0x20/0x20
[  277.471934][ T4561]  ? load_image+0x400/0x400
[  277.476661][ T4561]  sysfs_create_dir_ns+0x26a/0x290
[  277.482080][ T4561]  ? sysfs_warn_dup+0xa0/0xa0
[  277.488304][ T4561]  ? do_raw_spin_unlock+0x11d/0x230
[  277.493756][ T4561]  kobject_add_internal+0x6e0/0xd90
[  277.499086][ T4561]  kobject_init_and_add+0x128/0x190
[  277.504326][ T4561]  ? lockdep_softirqs_off+0x430/0x430
[  277.509822][ T4561]  ? kobject_add+0x230/0x230
[  277.514546][ T4561]  ? __init_swait_queue_head+0xa5/0x150
[  277.520128][ T4561]  gfs2_sys_fs_add+0x24f/0x4b0
[  277.525009][ T4561]  ? gfs2_recover_set+0x240/0x240
[  277.530632][ T4561]  ? snprintf+0xe5/0x140
[  277.534968][ T4561]  ? __free_pages+0x95/0x1a0
[  277.539739][ T4561]  ? vscnprintf+0x80/0x80
[  277.544243][ T4561]  gfs2_fill_super+0x120f/0x1f00
[  277.549874][ T4561]  ? gfs2_reconfigure+0xd30/0xd30
[  277.554997][ T4561]  ? sb_set_blocksize+0xa5/0xe0
[  277.559841][ T4561]  get_tree_bdev+0x3f1/0x610
[  277.564433][ T4561]  ? gfs2_reconfigure+0xd30/0xd30
[  277.569448][ T4561]  gfs2_get_tree+0x4d/0x1e0
[  277.574130][ T4561]  vfs_get_tree+0x88/0x270
[  277.578547][ T4561]  do_new_mount+0x24a/0xa40
[  277.583072][ T4561]  __se_sys_mount+0x2e3/0x3d0
[  277.587840][ T4561]  ? __x64_sys_mount+0xc0/0xc0
[  277.593098][ T4561]  ? lockdep_hardirqs_on+0x94/0x140
[  277.598398][ T4561]  ? __x64_sys_mount+0x1c/0xc0
[  277.603382][ T4561]  do_syscall_64+0x4c/0xa0
[  277.608415][ T4561]  ? clear_bhb_loop+0x30/0x80
[  277.613273][ T4561]  ? clear_bhb_loop+0x30/0x80
[  277.618049][ T4561]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  277.623950][ T4561] RIP: 0033:0x7f1c632dbf4a
[  277.628454][ T4561] 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
[  277.649173][ T4561] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  277.657936][ T4561] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  277.666469][ T4561] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  277.675086][ T4561] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  277.683324][ T4561] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  277.691921][ T4561] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  277.700167][ T4561]  </TASK>
[  277.704800][ T4561] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  277.718450][ T4561] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.089157][ T4562] loop1: detected capacity change from 0 to 32768
[  278.145040][ T4562] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.155878][ T4562] CPU: 0 PID: 4562 Comm: syz.1.182 Not tainted syzkaller #0
[  278.163306][ T4562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  278.173934][ T4562] Call Trace:
[  278.177414][ T4562]  <TASK>
[  278.180378][ T4562]  dump_stack_lvl+0x188/0x250
[  278.185194][ T4562]  ? show_regs_print_info+0x20/0x20
[  278.191033][ T4562]  ? load_image+0x400/0x400
[  278.195766][ T4562]  sysfs_create_dir_ns+0x26a/0x290
[  278.201044][ T4562]  ? sysfs_warn_dup+0xa0/0xa0
[  278.205941][ T4562]  ? do_raw_spin_unlock+0x11d/0x230
[  278.211351][ T4562]  kobject_add_internal+0x6e0/0xd90
[  278.216690][ T4562]  kobject_init_and_add+0x128/0x190
[  278.222004][ T4562]  ? lockdep_softirqs_off+0x430/0x430
[  278.228217][ T4562]  ? kobject_add+0x230/0x230
[  278.233022][ T4562]  ? __init_swait_queue_head+0xa5/0x150
[  278.238609][ T4562]  gfs2_sys_fs_add+0x24f/0x4b0
[  278.243588][ T4562]  ? gfs2_recover_set+0x240/0x240
[  278.249598][ T4562]  ? snprintf+0xe5/0x140
[  278.254036][ T4562]  ? __free_pages+0x95/0x1a0
[  278.258740][ T4562]  ? vscnprintf+0x80/0x80
[  278.263337][ T4562]  gfs2_fill_super+0x120f/0x1f00
[  278.268659][ T4562]  ? gfs2_reconfigure+0xd30/0xd30
[  278.273709][ T4562]  ? sb_set_blocksize+0xa5/0xe0
[  278.278674][ T4562]  get_tree_bdev+0x3f1/0x610
[  278.283278][ T4562]  ? gfs2_reconfigure+0xd30/0xd30
[  278.288677][ T4562]  gfs2_get_tree+0x4d/0x1e0
[  278.293199][ T4562]  vfs_get_tree+0x88/0x270
[  278.298060][ T4562]  do_new_mount+0x24a/0xa40
[  278.302773][ T4562]  __se_sys_mount+0x2e3/0x3d0
[  278.307907][ T4562]  ? __x64_sys_mount+0xc0/0xc0
[  278.313697][ T4562]  ? lockdep_hardirqs_on+0x94/0x140
[  278.319167][ T4562]  ? __x64_sys_mount+0x1c/0xc0
[  278.324116][ T4562]  do_syscall_64+0x4c/0xa0
[  278.328707][ T4562]  ? clear_bhb_loop+0x30/0x80
[  278.333673][ T4562]  ? clear_bhb_loop+0x30/0x80
[  278.338348][ T4562]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  278.344236][ T4562] RIP: 0033:0x7f1c632dbf4a
[  278.348733][ T4562] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  278.368341][ T4562] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  278.377462][ T4562] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  278.385686][ T4562] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  278.395425][ T4562] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  278.403962][ T4562] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  278.412185][ T4562] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  278.420265][ T4562]  </TASK>
[  278.429553][ T4562] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  278.444328][ T4562] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  278.834643][ T4563] loop1: detected capacity change from 0 to 32768
[  278.887200][ T4563] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  278.895009][ T4563] CPU: 1 PID: 4563 Comm: syz.1.183 Not tainted syzkaller #0
[  278.903298][ T4563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  278.914223][ T4563] Call Trace:
[  278.917674][ T4563]  <TASK>
[  278.920744][ T4563]  dump_stack_lvl+0x188/0x250
[  278.926103][ T4563]  ? show_regs_print_info+0x20/0x20
[  278.931583][ T4563]  ? load_image+0x400/0x400
[  278.936486][ T4563]  sysfs_create_dir_ns+0x26a/0x290
[  278.941645][ T4563]  ? sysfs_warn_dup+0xa0/0xa0
[  278.946898][ T4563]  ? do_raw_spin_unlock+0x11d/0x230
[  278.952689][ T4563]  kobject_add_internal+0x6e0/0xd90
[  278.958191][ T4563]  kobject_init_and_add+0x128/0x190
[  278.964177][ T4563]  ? lockdep_softirqs_off+0x430/0x430
[  278.970259][ T4563]  ? kobject_add+0x230/0x230
[  278.974911][ T4563]  ? __init_swait_queue_head+0xa5/0x150
[  278.981694][ T4563]  gfs2_sys_fs_add+0x24f/0x4b0
[  278.987021][ T4563]  ? gfs2_recover_set+0x240/0x240
[  278.993235][ T4563]  ? snprintf+0xe5/0x140
[  278.999126][ T4563]  ? __free_pages+0x95/0x1a0
[  279.004041][ T4563]  ? vscnprintf+0x80/0x80
[  279.009368][ T4563]  gfs2_fill_super+0x120f/0x1f00
[  279.014636][ T4563]  ? gfs2_reconfigure+0xd30/0xd30
[  279.019703][ T4563]  ? sb_set_blocksize+0xa5/0xe0
[  279.024884][ T4563]  get_tree_bdev+0x3f1/0x610
[  279.030187][ T4563]  ? gfs2_reconfigure+0xd30/0xd30
[  279.036127][ T4563]  gfs2_get_tree+0x4d/0x1e0
[  279.040771][ T4563]  vfs_get_tree+0x88/0x270
[  279.045212][ T4563]  do_new_mount+0x24a/0xa40
[  279.050057][ T4563]  __se_sys_mount+0x2e3/0x3d0
[  279.055258][ T4563]  ? __x64_sys_mount+0xc0/0xc0
[  279.060170][ T4563]  ? lockdep_hardirqs_on+0x94/0x140
[  279.065637][ T4563]  ? __x64_sys_mount+0x1c/0xc0
[  279.070680][ T4563]  do_syscall_64+0x4c/0xa0
[  279.075424][ T4563]  ? clear_bhb_loop+0x30/0x80
[  279.080575][ T4563]  ? clear_bhb_loop+0x30/0x80
[  279.085860][ T4563]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.092057][ T4563] RIP: 0033:0x7f1c632dbf4a
[  279.096571][ T4563] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  279.117338][ T4563] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.126792][ T4563] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  279.135566][ T4563] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  279.144024][ T4563] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  279.152533][ T4563] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  279.161076][ T4563] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  279.172865][ T4563]  </TASK>
[  279.177678][ T4563] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.193036][ T4563] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  279.540396][ T4564] loop1: detected capacity change from 0 to 32768
[  279.606909][ T4564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  279.614868][ T4564] CPU: 0 PID: 4564 Comm: syz.1.184 Not tainted syzkaller #0
[  279.622448][ T4564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  279.632977][ T4564] Call Trace:
[  279.636617][ T4564]  <TASK>
[  279.639744][ T4564]  dump_stack_lvl+0x188/0x250
[  279.644723][ T4564]  ? show_regs_print_info+0x20/0x20
[  279.649960][ T4564]  ? load_image+0x400/0x400
[  279.654598][ T4564]  sysfs_create_dir_ns+0x26a/0x290
[  279.660607][ T4564]  ? sysfs_warn_dup+0xa0/0xa0
[  279.665408][ T4564]  ? do_raw_spin_unlock+0x11d/0x230
[  279.671162][ T4564]  kobject_add_internal+0x6e0/0xd90
[  279.676761][ T4564]  kobject_init_and_add+0x128/0x190
[  279.682265][ T4564]  ? lockdep_softirqs_off+0x430/0x430
[  279.687854][ T4564]  ? kobject_add+0x230/0x230
[  279.692686][ T4564]  ? __init_swait_queue_head+0xa5/0x150
[  279.698335][ T4564]  gfs2_sys_fs_add+0x24f/0x4b0
[  279.703128][ T4564]  ? gfs2_recover_set+0x240/0x240
[  279.708248][ T4564]  ? snprintf+0xe5/0x140
[  279.712622][ T4564]  ? __free_pages+0x95/0x1a0
[  279.717210][ T4564]  ? vscnprintf+0x80/0x80
[  279.721649][ T4564]  gfs2_fill_super+0x120f/0x1f00
[  279.726762][ T4564]  ? gfs2_reconfigure+0xd30/0xd30
[  279.732035][ T4564]  ? sb_set_blocksize+0xa5/0xe0
[  279.737006][ T4564]  get_tree_bdev+0x3f1/0x610
[  279.741602][ T4564]  ? gfs2_reconfigure+0xd30/0xd30
[  279.746722][ T4564]  gfs2_get_tree+0x4d/0x1e0
[  279.752141][ T4564]  vfs_get_tree+0x88/0x270
[  279.757369][ T4564]  do_new_mount+0x24a/0xa40
[  279.761877][ T4564]  __se_sys_mount+0x2e3/0x3d0
[  279.766654][ T4564]  ? __x64_sys_mount+0xc0/0xc0
[  279.771640][ T4564]  ? lockdep_hardirqs_on+0x94/0x140
[  279.777452][ T4564]  ? __x64_sys_mount+0x1c/0xc0
[  279.782314][ T4564]  do_syscall_64+0x4c/0xa0
[  279.786903][ T4564]  ? clear_bhb_loop+0x30/0x80
[  279.792030][ T4564]  ? clear_bhb_loop+0x30/0x80
[  279.796814][ T4564]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  279.802825][ T4564] RIP: 0033:0x7f1c632dbf4a
[  279.807436][ T4564] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  279.828103][ T4564] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  279.837142][ T4564] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  279.845547][ T4564] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  279.853523][ T4564] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  279.861795][ T4564] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  279.870054][ T4564] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  279.879226][ T4564]  </TASK>
[  279.888428][ T4564] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  279.903493][ T4564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  280.298625][ T4565] loop1: detected capacity change from 0 to 32768
[  280.368574][ T4565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  280.376879][ T4565] CPU: 0 PID: 4565 Comm: syz.1.185 Not tainted syzkaller #0
[  280.384291][ T4565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  280.394944][ T4565] Call Trace:
[  280.398344][ T4565]  <TASK>
[  280.401520][ T4565]  dump_stack_lvl+0x188/0x250
[  280.406345][ T4565]  ? show_regs_print_info+0x20/0x20
[  280.412130][ T4565]  ? load_image+0x400/0x400
[  280.416688][ T4565]  sysfs_create_dir_ns+0x26a/0x290
[  280.422109][ T4565]  ? sysfs_warn_dup+0xa0/0xa0
[  280.427099][ T4565]  ? do_raw_spin_unlock+0x11d/0x230
[  280.432951][ T4565]  kobject_add_internal+0x6e0/0xd90
[  280.438628][ T4565]  kobject_init_and_add+0x128/0x190
[  280.444376][ T4565]  ? lockdep_softirqs_off+0x430/0x430
[  280.450322][ T4565]  ? kobject_add+0x230/0x230
[  280.455140][ T4565]  ? __init_swait_queue_head+0xa5/0x150
[  280.460827][ T4565]  gfs2_sys_fs_add+0x24f/0x4b0
[  280.466086][ T4565]  ? gfs2_recover_set+0x240/0x240
[  280.471985][ T4565]  ? snprintf+0xe5/0x140
[  280.476433][ T4565]  ? __free_pages+0x95/0x1a0
[  280.481119][ T4565]  ? vscnprintf+0x80/0x80
[  280.485739][ T4565]  gfs2_fill_super+0x120f/0x1f00
[  280.491091][ T4565]  ? gfs2_reconfigure+0xd30/0xd30
[  280.496760][ T4565]  ? sb_set_blocksize+0xa5/0xe0
[  280.502286][ T4565]  get_tree_bdev+0x3f1/0x610
[  280.506946][ T4565]  ? gfs2_reconfigure+0xd30/0xd30
[  280.512684][ T4565]  gfs2_get_tree+0x4d/0x1e0
[  280.517385][ T4565]  vfs_get_tree+0x88/0x270
[  280.522303][ T4565]  do_new_mount+0x24a/0xa40
[  280.528887][ T4565]  __se_sys_mount+0x2e3/0x3d0
[  280.533671][ T4565]  ? __x64_sys_mount+0xc0/0xc0
[  280.538997][ T4565]  ? lockdep_hardirqs_on+0x94/0x140
[  280.544878][ T4565]  ? __x64_sys_mount+0x1c/0xc0
[  280.550030][ T4565]  do_syscall_64+0x4c/0xa0
[  280.554646][ T4565]  ? clear_bhb_loop+0x30/0x80
[  280.560034][ T4565]  ? clear_bhb_loop+0x30/0x80
[  280.565180][ T4565]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  280.572788][ T4565] RIP: 0033:0x7f1c632dbf4a
[  280.577591][ T4565] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  280.600164][ T4565] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.608799][ T4565] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  280.617109][ T4565] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  280.625258][ T4565] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  280.633324][ T4565] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  280.641507][ T4565] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  280.649557][ T4565]  </TASK>
[  280.660933][ T4565] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.674972][ T4565] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.010523][ T4566] loop1: detected capacity change from 0 to 32768
[  281.077586][ T4566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.085292][ T4566] CPU: 0 PID: 4566 Comm: syz.1.186 Not tainted syzkaller #0
[  281.093696][ T4566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.104780][ T4566] Call Trace:
[  281.108433][ T4566]  <TASK>
[  281.111798][ T4566]  dump_stack_lvl+0x188/0x250
[  281.116701][ T4566]  ? show_regs_print_info+0x20/0x20
[  281.122608][ T4566]  ? load_image+0x400/0x400
[  281.127607][ T4566]  sysfs_create_dir_ns+0x26a/0x290
[  281.133061][ T4566]  ? sysfs_warn_dup+0xa0/0xa0
[  281.137776][ T4566]  ? do_raw_spin_unlock+0x11d/0x230
[  281.144245][ T4566]  kobject_add_internal+0x6e0/0xd90
[  281.150185][ T4566]  kobject_init_and_add+0x128/0x190
[  281.155783][ T4566]  ? lockdep_softirqs_off+0x430/0x430
[  281.161583][ T4566]  ? kobject_add+0x230/0x230
[  281.166463][ T4566]  ? __init_swait_queue_head+0xa5/0x150
[  281.172295][ T4566]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.177526][ T4566]  ? gfs2_recover_set+0x240/0x240
[  281.182925][ T4566]  ? snprintf+0xe5/0x140
[  281.187351][ T4566]  ? __free_pages+0x95/0x1a0
[  281.192113][ T4566]  ? vscnprintf+0x80/0x80
[  281.196904][ T4566]  gfs2_fill_super+0x120f/0x1f00
[  281.202252][ T4566]  ? gfs2_reconfigure+0xd30/0xd30
[  281.207812][ T4566]  ? sb_set_blocksize+0xa5/0xe0
[  281.213185][ T4566]  get_tree_bdev+0x3f1/0x610
[  281.217815][ T4566]  ? gfs2_reconfigure+0xd30/0xd30
[  281.223312][ T4566]  gfs2_get_tree+0x4d/0x1e0
[  281.228154][ T4566]  vfs_get_tree+0x88/0x270
[  281.233035][ T4566]  do_new_mount+0x24a/0xa40
[  281.238562][ T4566]  __se_sys_mount+0x2e3/0x3d0
[  281.244418][ T4566]  ? __x64_sys_mount+0xc0/0xc0
[  281.249370][ T4566]  ? lockdep_hardirqs_on+0x94/0x140
[  281.256244][ T4566]  ? __x64_sys_mount+0x1c/0xc0
[  281.261371][ T4566]  do_syscall_64+0x4c/0xa0
[  281.266267][ T4566]  ? clear_bhb_loop+0x30/0x80
[  281.272320][ T4566]  ? clear_bhb_loop+0x30/0x80
[  281.277195][ T4566]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  281.284354][ T4566] RIP: 0033:0x7f1c632dbf4a
[  281.289310][ T4566] 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
[  281.310221][ T4566] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.319276][ T4566] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  281.327869][ T4566] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  281.336837][ T4566] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  281.346458][ T4566] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  281.355272][ T4566] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  281.363986][ T4566]  </TASK>
[  281.373540][ T4566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.388888][ T4566] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/25 07:59:14 executed programs: 172
[  281.759647][ T4567] loop1: detected capacity change from 0 to 32768
[  281.829656][ T4567] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.837720][ T4567] CPU: 0 PID: 4567 Comm: syz.1.187 Not tainted syzkaller #0
[  281.845292][ T4567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  281.855743][ T4567] Call Trace:
[  281.859260][ T4567]  <TASK>
[  281.862392][ T4567]  dump_stack_lvl+0x188/0x250
[  281.867658][ T4567]  ? show_regs_print_info+0x20/0x20
[  281.873445][ T4567]  ? load_image+0x400/0x400
[  281.878363][ T4567]  sysfs_create_dir_ns+0x26a/0x290
[  281.883608][ T4567]  ? sysfs_warn_dup+0xa0/0xa0
[  281.888425][ T4567]  ? do_raw_spin_unlock+0x11d/0x230
[  281.893790][ T4567]  kobject_add_internal+0x6e0/0xd90
[  281.899378][ T4567]  kobject_init_and_add+0x128/0x190
[  281.904785][ T4567]  ? lockdep_softirqs_off+0x430/0x430
[  281.910197][ T4567]  ? kobject_add+0x230/0x230
[  281.914901][ T4567]  ? __init_swait_queue_head+0xa5/0x150
[  281.920719][ T4567]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.925757][ T4567]  ? gfs2_recover_set+0x240/0x240
[  281.931365][ T4567]  ? snprintf+0xe5/0x140
[  281.936852][ T4567]  ? __free_pages+0x95/0x1a0
[  281.941538][ T4567]  ? vscnprintf+0x80/0x80
[  281.946276][ T4567]  gfs2_fill_super+0x120f/0x1f00
[  281.951862][ T4567]  ? gfs2_reconfigure+0xd30/0xd30
[  281.957095][ T4567]  ? sb_set_blocksize+0xa5/0xe0
[  281.962461][ T4567]  get_tree_bdev+0x3f1/0x610
[  281.967614][ T4567]  ? gfs2_reconfigure+0xd30/0xd30
[  281.972839][ T4567]  gfs2_get_tree+0x4d/0x1e0
[  281.977817][ T4567]  vfs_get_tree+0x88/0x270
[  281.982327][ T4567]  do_new_mount+0x24a/0xa40
[  281.987008][ T4567]  __se_sys_mount+0x2e3/0x3d0
[  281.992822][ T4567]  ? __x64_sys_mount+0xc0/0xc0
[  281.997693][ T4567]  ? lockdep_hardirqs_on+0x94/0x140
[  282.003413][ T4567]  ? __x64_sys_mount+0x1c/0xc0
[  282.008527][ T4567]  do_syscall_64+0x4c/0xa0
[  282.013042][ T4567]  ? clear_bhb_loop+0x30/0x80
[  282.017896][ T4567]  ? clear_bhb_loop+0x30/0x80
[  282.022574][ T4567]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.028981][ T4567] RIP: 0033:0x7f1c632dbf4a
[  282.033480][ T4567] 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
[  282.054148][ T4567] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.063211][ T4567] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  282.071785][ T4567] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  282.080052][ T4567] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  282.088611][ T4567] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  282.097186][ T4567] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  282.105513][ T4567]  </TASK>
[  282.110664][ T4567] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.125084][ T4567] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.493413][ T4568] loop1: detected capacity change from 0 to 32768
[  282.571829][ T4568] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.579645][ T4568] CPU: 0 PID: 4568 Comm: syz.1.188 Not tainted syzkaller #0
[  282.587054][ T4568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  282.597690][ T4568] Call Trace:
[  282.601011][ T4568]  <TASK>
[  282.604135][ T4568]  dump_stack_lvl+0x188/0x250
[  282.608934][ T4568]  ? show_regs_print_info+0x20/0x20
[  282.614274][ T4568]  ? load_image+0x400/0x400
[  282.619083][ T4568]  sysfs_create_dir_ns+0x26a/0x290
[  282.624329][ T4568]  ? sysfs_warn_dup+0xa0/0xa0
[  282.629046][ T4568]  ? do_raw_spin_unlock+0x11d/0x230
[  282.634893][ T4568]  kobject_add_internal+0x6e0/0xd90
[  282.640139][ T4568]  kobject_init_and_add+0x128/0x190
[  282.646072][ T4568]  ? lockdep_softirqs_off+0x430/0x430
[  282.651528][ T4568]  ? kobject_add+0x230/0x230
[  282.656163][ T4568]  ? __init_swait_queue_head+0xa5/0x150
[  282.661862][ T4568]  gfs2_sys_fs_add+0x24f/0x4b0
[  282.666644][ T4568]  ? gfs2_recover_set+0x240/0x240
[  282.672161][ T4568]  ? snprintf+0xe5/0x140
[  282.676431][ T4568]  ? __free_pages+0x95/0x1a0
[  282.681056][ T4568]  ? vscnprintf+0x80/0x80
[  282.685422][ T4568]  gfs2_fill_super+0x120f/0x1f00
[  282.691333][ T4568]  ? gfs2_reconfigure+0xd30/0xd30
[  282.696843][ T4568]  ? sb_set_blocksize+0xa5/0xe0
[  282.701990][ T4568]  get_tree_bdev+0x3f1/0x610
[  282.706930][ T4568]  ? gfs2_reconfigure+0xd30/0xd30
[  282.712667][ T4568]  gfs2_get_tree+0x4d/0x1e0
[  282.717293][ T4568]  vfs_get_tree+0x88/0x270
[  282.721751][ T4568]  do_new_mount+0x24a/0xa40
[  282.726255][ T4568]  __se_sys_mount+0x2e3/0x3d0
[  282.731015][ T4568]  ? __x64_sys_mount+0xc0/0xc0
[  282.735787][ T4568]  ? lockdep_hardirqs_on+0x94/0x140
[  282.741001][ T4568]  ? __x64_sys_mount+0x1c/0xc0
[  282.745773][ T4568]  do_syscall_64+0x4c/0xa0
[  282.750654][ T4568]  ? clear_bhb_loop+0x30/0x80
[  282.755554][ T4568]  ? clear_bhb_loop+0x30/0x80
[  282.760265][ T4568]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  282.766256][ T4568] RIP: 0033:0x7f1c632dbf4a
[  282.770667][ T4568] 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
[  282.791091][ T4568] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.799959][ T4568] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  282.808492][ T4568] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  282.816908][ T4568] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  282.825068][ T4568] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  282.833384][ T4568] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  282.841963][ T4568]  </TASK>
[  282.850255][ T4568] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.866654][ T4568] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.214543][ T4569] loop1: detected capacity change from 0 to 32768
[  283.265672][ T4569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.274173][ T4569] CPU: 0 PID: 4569 Comm: syz.1.189 Not tainted syzkaller #0
[  283.282107][ T4569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  283.292734][ T4569] Call Trace:
[  283.296129][ T4569]  <TASK>
[  283.299114][ T4569]  dump_stack_lvl+0x188/0x250
[  283.304149][ T4569]  ? show_regs_print_info+0x20/0x20
[  283.310069][ T4569]  ? load_image+0x400/0x400
[  283.314819][ T4569]  sysfs_create_dir_ns+0x26a/0x290
[  283.320596][ T4569]  ? sysfs_warn_dup+0xa0/0xa0
[  283.325414][ T4569]  ? do_raw_spin_unlock+0x11d/0x230
[  283.330769][ T4569]  kobject_add_internal+0x6e0/0xd90
[  283.336110][ T4569]  kobject_init_and_add+0x128/0x190
[  283.341336][ T4569]  ? lockdep_softirqs_off+0x430/0x430
[  283.347022][ T4569]  ? kobject_add+0x230/0x230
[  283.351658][ T4569]  ? __init_swait_queue_head+0xa5/0x150
[  283.357232][ T4569]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.362271][ T4569]  ? gfs2_recover_set+0x240/0x240
[  283.367459][ T4569]  ? snprintf+0xe5/0x140
[  283.371809][ T4569]  ? __free_pages+0x95/0x1a0
[  283.376413][ T4569]  ? vscnprintf+0x80/0x80
[  283.381420][ T4569]  gfs2_fill_super+0x120f/0x1f00
[  283.387182][ T4569]  ? gfs2_reconfigure+0xd30/0xd30
[  283.392693][ T4569]  ? sb_set_blocksize+0xa5/0xe0
[  283.397827][ T4569]  get_tree_bdev+0x3f1/0x610
[  283.402662][ T4569]  ? gfs2_reconfigure+0xd30/0xd30
[  283.408098][ T4569]  gfs2_get_tree+0x4d/0x1e0
[  283.412732][ T4569]  vfs_get_tree+0x88/0x270
[  283.417250][ T4569]  do_new_mount+0x24a/0xa40
[  283.421878][ T4569]  __se_sys_mount+0x2e3/0x3d0
[  283.425606][ T4260] Bluetooth: hci1: command 0x0406 tx timeout
[  283.426822][ T4569]  ? __x64_sys_mount+0xc0/0xc0
[  283.437958][ T4569]  ? lockdep_hardirqs_on+0x94/0x140
[  283.443336][ T4569]  ? __x64_sys_mount+0x1c/0xc0
[  283.448469][ T4569]  do_syscall_64+0x4c/0xa0
[  283.453115][ T4569]  ? clear_bhb_loop+0x30/0x80
[  283.457893][ T4569]  ? clear_bhb_loop+0x30/0x80
[  283.462669][ T4569]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  283.468772][ T4569] RIP: 0033:0x7f1c632dbf4a
[  283.473276][ T4569] 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
[  283.493145][ T4569] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.501561][ T4569] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  283.509621][ T4569] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  283.517596][ T4569] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  283.525894][ T4569] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  283.534146][ T4569] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  283.542209][ T4569]  </TASK>
[  283.547195][ T4569] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.560983][ T4569] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.926979][ T4570] loop1: detected capacity change from 0 to 32768
[  283.988029][ T4570] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.996739][ T4570] CPU: 0 PID: 4570 Comm: syz.1.190 Not tainted syzkaller #0
[  284.004759][ T4570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.015552][ T4570] Call Trace:
[  284.018966][ T4570]  <TASK>
[  284.021928][ T4570]  dump_stack_lvl+0x188/0x250
[  284.026991][ T4570]  ? show_regs_print_info+0x20/0x20
[  284.032604][ T4570]  ? load_image+0x400/0x400
[  284.037370][ T4570]  sysfs_create_dir_ns+0x26a/0x290
[  284.042604][ T4570]  ? sysfs_warn_dup+0xa0/0xa0
[  284.047807][ T4570]  ? do_raw_spin_unlock+0x11d/0x230
[  284.053225][ T4570]  kobject_add_internal+0x6e0/0xd90
[  284.058839][ T4570]  kobject_init_and_add+0x128/0x190
[  284.064692][ T4570]  ? lockdep_softirqs_off+0x430/0x430
[  284.070269][ T4570]  ? kobject_add+0x230/0x230
[  284.074951][ T4570]  ? __init_swait_queue_head+0xa5/0x150
[  284.080741][ T4570]  gfs2_sys_fs_add+0x24f/0x4b0
[  284.085695][ T4570]  ? gfs2_recover_set+0x240/0x240
[  284.091497][ T4570]  ? snprintf+0xe5/0x140
[  284.096169][ T4570]  ? __free_pages+0x95/0x1a0
[  284.101416][ T4570]  ? vscnprintf+0x80/0x80
[  284.105862][ T4570]  gfs2_fill_super+0x120f/0x1f00
[  284.111091][ T4570]  ? gfs2_reconfigure+0xd30/0xd30
[  284.116216][ T4570]  ? sb_set_blocksize+0xa5/0xe0
[  284.121352][ T4570]  get_tree_bdev+0x3f1/0x610
[  284.126222][ T4570]  ? gfs2_reconfigure+0xd30/0xd30
[  284.131636][ T4570]  gfs2_get_tree+0x4d/0x1e0
[  284.136532][ T4570]  vfs_get_tree+0x88/0x270
[  284.141175][ T4570]  do_new_mount+0x24a/0xa40
[  284.145937][ T4570]  __se_sys_mount+0x2e3/0x3d0
[  284.150785][ T4570]  ? __x64_sys_mount+0xc0/0xc0
[  284.155652][ T4570]  ? lockdep_hardirqs_on+0x94/0x140
[  284.160864][ T4570]  ? __x64_sys_mount+0x1c/0xc0
[  284.165706][ T4570]  do_syscall_64+0x4c/0xa0
[  284.170326][ T4570]  ? clear_bhb_loop+0x30/0x80
[  284.175400][ T4570]  ? clear_bhb_loop+0x30/0x80
[  284.180443][ T4570]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  284.186685][ T4570] RIP: 0033:0x7f1c632dbf4a
[  284.191149][ T4570] 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
[  284.212208][ T4570] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.220911][ T4570] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  284.229076][ T4570] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  284.237685][ T4570] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  284.245924][ T4570] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  284.254159][ T4570] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  284.262699][ T4570]  </TASK>
[  284.267695][ T4570] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.281121][ T4570] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.666249][ T4571] loop1: detected capacity change from 0 to 32768
[  284.714676][ T4571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.724594][ T4571] CPU: 1 PID: 4571 Comm: syz.1.191 Not tainted syzkaller #0
[  284.732372][ T4571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  284.742731][ T4571] Call Trace:
[  284.746144][ T4571]  <TASK>
[  284.749403][ T4571]  dump_stack_lvl+0x188/0x250
[  284.754207][ T4571]  ? show_regs_print_info+0x20/0x20
[  284.759747][ T4571]  ? load_image+0x400/0x400
[  284.764309][ T4571]  sysfs_create_dir_ns+0x26a/0x290
[  284.770247][ T4571]  ? sysfs_warn_dup+0xa0/0xa0
[  284.775065][ T4571]  ? do_raw_spin_unlock+0x11d/0x230
[  284.780485][ T4571]  kobject_add_internal+0x6e0/0xd90
[  284.785811][ T4571]  kobject_init_and_add+0x128/0x190
[  284.791124][ T4571]  ? lockdep_softirqs_off+0x430/0x430
[  284.796666][ T4571]  ? kobject_add+0x230/0x230
[  284.801461][ T4571]  ? __init_swait_queue_head+0xa5/0x150
[  284.807324][ T4571]  gfs2_sys_fs_add+0x24f/0x4b0
[  284.812390][ T4571]  ? gfs2_recover_set+0x240/0x240
[  284.817420][ T4571]  ? snprintf+0xe5/0x140
[  284.822137][ T4571]  ? __free_pages+0x95/0x1a0
[  284.826856][ T4571]  ? vscnprintf+0x80/0x80
[  284.831473][ T4571]  gfs2_fill_super+0x120f/0x1f00
[  284.836709][ T4571]  ? gfs2_reconfigure+0xd30/0xd30
[  284.841783][ T4571]  ? sb_set_blocksize+0xa5/0xe0
[  284.846828][ T4571]  get_tree_bdev+0x3f1/0x610
[  284.851771][ T4571]  ? gfs2_reconfigure+0xd30/0xd30
[  284.856932][ T4571]  gfs2_get_tree+0x4d/0x1e0
[  284.861469][ T4571]  vfs_get_tree+0x88/0x270
[  284.865897][ T4571]  do_new_mount+0x24a/0xa40
[  284.870489][ T4571]  __se_sys_mount+0x2e3/0x3d0
[  284.875430][ T4571]  ? __x64_sys_mount+0xc0/0xc0
[  284.880490][ T4571]  ? lockdep_hardirqs_on+0x94/0x140
[  284.885775][ T4571]  ? __x64_sys_mount+0x1c/0xc0
[  284.890754][ T4571]  do_syscall_64+0x4c/0xa0
[  284.895261][ T4571]  ? clear_bhb_loop+0x30/0x80
[  284.900373][ T4571]  ? clear_bhb_loop+0x30/0x80
[  284.905235][ T4571]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  284.911320][ T4571] RIP: 0033:0x7f1c632dbf4a
[  284.915829][ T4571] 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
[  284.936626][ T4571] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.945339][ T4571] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  284.953672][ T4571] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  284.962195][ T4571] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  284.970614][ T4571] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  284.978944][ T4571] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  284.987770][ T4571]  </TASK>
[  284.993079][ T4571] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.007184][ T4571] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.354434][ T4572] loop1: detected capacity change from 0 to 32768
[  285.440466][ T4572] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.449352][ T4572] CPU: 0 PID: 4572 Comm: syz.1.192 Not tainted syzkaller #0
[  285.456958][ T4572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  285.467308][ T4572] Call Trace:
[  285.470739][ T4572]  <TASK>
[  285.473709][ T4572]  dump_stack_lvl+0x188/0x250
[  285.478513][ T4572]  ? show_regs_print_info+0x20/0x20
[  285.483853][ T4572]  ? load_image+0x400/0x400
[  285.488854][ T4572]  sysfs_create_dir_ns+0x26a/0x290
[  285.494167][ T4572]  ? sysfs_warn_dup+0xa0/0xa0
[  285.499166][ T4572]  ? do_raw_spin_unlock+0x11d/0x230
[  285.504550][ T4572]  kobject_add_internal+0x6e0/0xd90
[  285.509944][ T4572]  kobject_init_and_add+0x128/0x190
[  285.515590][ T4572]  ? lockdep_softirqs_off+0x430/0x430
[  285.521239][ T4572]  ? kobject_add+0x230/0x230
[  285.525919][ T4572]  ? __init_swait_queue_head+0xa5/0x150
[  285.531999][ T4572]  gfs2_sys_fs_add+0x24f/0x4b0
[  285.537048][ T4572]  ? gfs2_recover_set+0x240/0x240
[  285.542250][ T4572]  ? snprintf+0xe5/0x140
[  285.546580][ T4572]  ? __free_pages+0x95/0x1a0
[  285.551302][ T4572]  ? vscnprintf+0x80/0x80
[  285.555866][ T4572]  gfs2_fill_super+0x120f/0x1f00
[  285.561034][ T4572]  ? gfs2_reconfigure+0xd30/0xd30
[  285.566262][ T4572]  ? sb_set_blocksize+0xa5/0xe0
[  285.571314][ T4572]  get_tree_bdev+0x3f1/0x610
[  285.575913][ T4572]  ? gfs2_reconfigure+0xd30/0xd30
[  285.580930][ T4572]  gfs2_get_tree+0x4d/0x1e0
[  285.585792][ T4572]  vfs_get_tree+0x88/0x270
[  285.590650][ T4572]  do_new_mount+0x24a/0xa40
[  285.595152][ T4572]  __se_sys_mount+0x2e3/0x3d0
[  285.600028][ T4572]  ? __x64_sys_mount+0xc0/0xc0
[  285.604877][ T4572]  ? lockdep_hardirqs_on+0x94/0x140
[  285.610157][ T4572]  ? __x64_sys_mount+0x1c/0xc0
[  285.615765][ T4572]  do_syscall_64+0x4c/0xa0
[  285.620608][ T4572]  ? clear_bhb_loop+0x30/0x80
[  285.625580][ T4572]  ? clear_bhb_loop+0x30/0x80
[  285.630711][ T4572]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  285.636776][ T4572] RIP: 0033:0x7f1c632dbf4a
[  285.641402][ T4572] 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
[  285.661752][ T4572] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.671038][ T4572] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  285.679631][ T4572] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  285.688026][ T4572] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  285.696098][ T4572] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  285.704755][ T4572] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  285.713199][ T4572]  </TASK>
[  285.718207][ T4572] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.733670][ T4572] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.103144][ T4573] loop1: detected capacity change from 0 to 32768
[  286.155300][ T4573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.163246][ T4573] CPU: 1 PID: 4573 Comm: syz.1.193 Not tainted syzkaller #0
[  286.171062][ T4573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.181668][ T4573] Call Trace:
[  286.185015][ T4573]  <TASK>
[  286.188226][ T4573]  dump_stack_lvl+0x188/0x250
[  286.192950][ T4573]  ? show_regs_print_info+0x20/0x20
[  286.198268][ T4573]  ? load_image+0x400/0x400
[  286.202836][ T4573]  sysfs_create_dir_ns+0x26a/0x290
[  286.207994][ T4573]  ? sysfs_warn_dup+0xa0/0xa0
[  286.212989][ T4573]  ? do_raw_spin_unlock+0x11d/0x230
[  286.218252][ T4573]  kobject_add_internal+0x6e0/0xd90
[  286.223859][ T4573]  kobject_init_and_add+0x128/0x190
[  286.229568][ T4573]  ? lockdep_softirqs_off+0x430/0x430
[  286.235671][ T4573]  ? kobject_add+0x230/0x230
[  286.240576][ T4573]  ? __init_swait_queue_head+0xa5/0x150
[  286.247206][ T4573]  gfs2_sys_fs_add+0x24f/0x4b0
[  286.252200][ T4573]  ? gfs2_recover_set+0x240/0x240
[  286.257618][ T4573]  ? snprintf+0xe5/0x140
[  286.262314][ T4573]  ? __free_pages+0x95/0x1a0
[  286.266911][ T4573]  ? vscnprintf+0x80/0x80
[  286.271845][ T4573]  gfs2_fill_super+0x120f/0x1f00
[  286.277215][ T4573]  ? gfs2_reconfigure+0xd30/0xd30
[  286.282348][ T4573]  ? sb_set_blocksize+0xa5/0xe0
[  286.287320][ T4573]  get_tree_bdev+0x3f1/0x610
[  286.292106][ T4573]  ? gfs2_reconfigure+0xd30/0xd30
[  286.297341][ T4573]  gfs2_get_tree+0x4d/0x1e0
[  286.302809][ T4573]  vfs_get_tree+0x88/0x270
[  286.307702][ T4573]  do_new_mount+0x24a/0xa40
[  286.313616][ T4573]  __se_sys_mount+0x2e3/0x3d0
[  286.318780][ T4573]  ? __x64_sys_mount+0xc0/0xc0
[  286.323687][ T4573]  ? lockdep_hardirqs_on+0x94/0x140
[  286.328985][ T4573]  ? __x64_sys_mount+0x1c/0xc0
[  286.333885][ T4573]  do_syscall_64+0x4c/0xa0
[  286.338298][ T4573]  ? clear_bhb_loop+0x30/0x80
[  286.343067][ T4573]  ? clear_bhb_loop+0x30/0x80
[  286.348094][ T4573]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  286.354249][ T4573] RIP: 0033:0x7f1c632dbf4a
[  286.358848][ T4573] 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
[  286.378811][ T4573] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.388144][ T4573] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  286.396786][ T4573] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  286.405230][ T4573] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  286.414034][ T4573] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  286.422123][ T4573] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  286.431356][ T4573]  </TASK>
[  286.440398][ T4573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.454980][ T4573] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/25 07:59:19 executed programs: 179
[  286.845317][ T4574] loop1: detected capacity change from 0 to 32768
[  286.878317][ T4574] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.890773][ T4574] CPU: 1 PID: 4574 Comm: syz.1.194 Not tainted syzkaller #0
[  286.899062][ T4574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  286.909407][ T4574] Call Trace:
[  286.913011][ T4574]  <TASK>
[  286.916147][ T4574]  dump_stack_lvl+0x188/0x250
[  286.921308][ T4574]  ? show_regs_print_info+0x20/0x20
[  286.927350][ T4574]  ? load_image+0x400/0x400
[  286.932007][ T4574]  sysfs_create_dir_ns+0x26a/0x290
[  286.937367][ T4574]  ? sysfs_warn_dup+0xa0/0xa0
[  286.942350][ T4574]  ? do_raw_spin_unlock+0x11d/0x230
[  286.948111][ T4574]  kobject_add_internal+0x6e0/0xd90
[  286.953446][ T4574]  kobject_init_and_add+0x128/0x190
[  286.958878][ T4574]  ? lockdep_softirqs_off+0x430/0x430
[  286.964499][ T4574]  ? kobject_add+0x230/0x230
[  286.969418][ T4574]  ? __init_swait_queue_head+0xa5/0x150
[  286.975769][ T4574]  gfs2_sys_fs_add+0x24f/0x4b0
[  286.980646][ T4574]  ? gfs2_recover_set+0x240/0x240
[  286.985720][ T4574]  ? snprintf+0xe5/0x140
[  286.990084][ T4574]  ? __free_pages+0x95/0x1a0
[  286.994666][ T4574]  ? vscnprintf+0x80/0x80
[  286.999183][ T4574]  gfs2_fill_super+0x120f/0x1f00
[  287.004171][ T4574]  ? gfs2_reconfigure+0xd30/0xd30
[  287.009208][ T4574]  ? sb_set_blocksize+0xa5/0xe0
[  287.014067][ T4574]  get_tree_bdev+0x3f1/0x610
[  287.018774][ T4574]  ? gfs2_reconfigure+0xd30/0xd30
[  287.024014][ T4574]  gfs2_get_tree+0x4d/0x1e0
[  287.028525][ T4574]  vfs_get_tree+0x88/0x270
[  287.033315][ T4574]  do_new_mount+0x24a/0xa40
[  287.037882][ T4574]  __se_sys_mount+0x2e3/0x3d0
[  287.042834][ T4574]  ? __x64_sys_mount+0xc0/0xc0
[  287.047799][ T4574]  ? lockdep_hardirqs_on+0x94/0x140
[  287.053207][ T4574]  ? __x64_sys_mount+0x1c/0xc0
[  287.058352][ T4574]  do_syscall_64+0x4c/0xa0
[  287.063217][ T4574]  ? clear_bhb_loop+0x30/0x80
[  287.067916][ T4574]  ? clear_bhb_loop+0x30/0x80
[  287.073030][ T4574]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  287.079176][ T4574] RIP: 0033:0x7f1c632dbf4a
[  287.083671][ T4574] 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
[  287.104534][ T4574] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.113132][ T4574] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  287.121417][ T4574] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  287.130023][ T4574] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  287.138684][ T4574] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  287.146954][ T4574] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  287.155123][ T4574]  </TASK>
[  287.159522][ T4574] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.172904][ T4574] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.538864][ T4576] loop1: detected capacity change from 0 to 32768
[  287.559368][ T4576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.567105][ T4576] CPU: 1 PID: 4576 Comm: syz.1.195 Not tainted syzkaller #0
[  287.574686][ T4576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  287.585999][ T4576] Call Trace:
[  287.589830][ T4576]  <TASK>
[  287.592899][ T4576]  dump_stack_lvl+0x188/0x250
[  287.597820][ T4576]  ? show_regs_print_info+0x20/0x20
[  287.603185][ T4576]  ? load_image+0x400/0x400
[  287.607915][ T4576]  sysfs_create_dir_ns+0x26a/0x290
[  287.613056][ T4576]  ? sysfs_warn_dup+0xa0/0xa0
[  287.617765][ T4576]  ? do_raw_spin_unlock+0x11d/0x230
[  287.623438][ T4576]  kobject_add_internal+0x6e0/0xd90
[  287.628869][ T4576]  kobject_init_and_add+0x128/0x190
[  287.634105][ T4576]  ? lockdep_softirqs_off+0x430/0x430
[  287.639814][ T4576]  ? kobject_add+0x230/0x230
[  287.644643][ T4576]  ? __init_swait_queue_head+0xa5/0x150
[  287.650226][ T4576]  gfs2_sys_fs_add+0x24f/0x4b0
[  287.655024][ T4576]  ? gfs2_recover_set+0x240/0x240
[  287.660081][ T4576]  ? snprintf+0xe5/0x140
[  287.664364][ T4576]  ? __free_pages+0x95/0x1a0
[  287.668983][ T4576]  ? vscnprintf+0x80/0x80
[  287.673333][ T4576]  gfs2_fill_super+0x120f/0x1f00
[  287.678278][ T4576]  ? gfs2_reconfigure+0xd30/0xd30
[  287.683407][ T4576]  ? sb_set_blocksize+0xa5/0xe0
[  287.688287][ T4576]  get_tree_bdev+0x3f1/0x610
[  287.693050][ T4576]  ? gfs2_reconfigure+0xd30/0xd30
[  287.698167][ T4576]  gfs2_get_tree+0x4d/0x1e0
[  287.702714][ T4576]  vfs_get_tree+0x88/0x270
[  287.707293][ T4576]  do_new_mount+0x24a/0xa40
[  287.711820][ T4576]  __se_sys_mount+0x2e3/0x3d0
[  287.716635][ T4576]  ? __x64_sys_mount+0xc0/0xc0
[  287.721698][ T4576]  ? lockdep_hardirqs_on+0x94/0x140
[  287.727072][ T4576]  ? __x64_sys_mount+0x1c/0xc0
[  287.731932][ T4576]  do_syscall_64+0x4c/0xa0
[  287.736509][ T4576]  ? clear_bhb_loop+0x30/0x80
[  287.741420][ T4576]  ? clear_bhb_loop+0x30/0x80
[  287.746150][ T4576]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  287.752691][ T4576] RIP: 0033:0x7f1c632dbf4a
[  287.757285][ T4576] 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
[  287.777447][ T4576] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.785890][ T4576] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  287.794247][ T4576] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  287.802477][ T4576] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  287.810872][ T4576] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  287.819702][ T4576] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  287.828069][ T4576]  </TASK>
[  287.832972][ T4576] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.846661][ T4576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.189238][ T4578] loop1: detected capacity change from 0 to 32768
[  288.248053][ T4578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.255804][ T4578] CPU: 1 PID: 4578 Comm: syz.1.196 Not tainted syzkaller #0
[  288.263599][ T4578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.274291][ T4578] Call Trace:
[  288.278742][ T4578]  <TASK>
[  288.281800][ T4578]  dump_stack_lvl+0x188/0x250
[  288.286636][ T4578]  ? show_regs_print_info+0x20/0x20
[  288.292228][ T4578]  ? load_image+0x400/0x400
[  288.296795][ T4578]  sysfs_create_dir_ns+0x26a/0x290
[  288.301962][ T4578]  ? sysfs_warn_dup+0xa0/0xa0
[  288.306685][ T4578]  ? do_raw_spin_unlock+0x11d/0x230
[  288.311924][ T4578]  kobject_add_internal+0x6e0/0xd90
[  288.317247][ T4578]  kobject_init_and_add+0x128/0x190
[  288.322565][ T4578]  ? lockdep_softirqs_off+0x430/0x430
[  288.327979][ T4578]  ? kobject_add+0x230/0x230
[  288.332602][ T4578]  ? __init_swait_queue_head+0xa5/0x150
[  288.338707][ T4578]  gfs2_sys_fs_add+0x24f/0x4b0
[  288.343737][ T4578]  ? gfs2_recover_set+0x240/0x240
[  288.348758][ T4578]  ? snprintf+0xe5/0x140
[  288.353127][ T4578]  ? __free_pages+0x95/0x1a0
[  288.358098][ T4578]  ? vscnprintf+0x80/0x80
[  288.362692][ T4578]  gfs2_fill_super+0x120f/0x1f00
[  288.367766][ T4578]  ? gfs2_reconfigure+0xd30/0xd30
[  288.373016][ T4578]  ? sb_set_blocksize+0xa5/0xe0
[  288.378382][ T4578]  get_tree_bdev+0x3f1/0x610
[  288.383430][ T4578]  ? gfs2_reconfigure+0xd30/0xd30
[  288.388723][ T4578]  gfs2_get_tree+0x4d/0x1e0
[  288.393635][ T4578]  vfs_get_tree+0x88/0x270
[  288.398167][ T4578]  do_new_mount+0x24a/0xa40
[  288.403000][ T4578]  __se_sys_mount+0x2e3/0x3d0
[  288.408289][ T4578]  ? __x64_sys_mount+0xc0/0xc0
[  288.413246][ T4578]  ? lockdep_hardirqs_on+0x94/0x140
[  288.418481][ T4578]  ? __x64_sys_mount+0x1c/0xc0
[  288.423748][ T4578]  do_syscall_64+0x4c/0xa0
[  288.428833][ T4578]  ? clear_bhb_loop+0x30/0x80
[  288.433874][ T4578]  ? clear_bhb_loop+0x30/0x80
[  288.438818][ T4578]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  288.444928][ T4578] RIP: 0033:0x7f1c632dbf4a
[  288.449338][ T4578] 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
[  288.469287][ T4578] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.477702][ T4578] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  288.486615][ T4578] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  288.495025][ T4578] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  288.503221][ T4578] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  288.513437][ T4578] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  288.521786][ T4578]  </TASK>
[  288.526252][ T4578] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.539606][ T4578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.902417][ T4581] loop1: detected capacity change from 0 to 32768
[  288.965585][ T4581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.973591][ T4581] CPU: 0 PID: 4581 Comm: syz.1.197 Not tainted syzkaller #0
[  288.982438][ T4581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  288.992993][ T4581] Call Trace:
[  288.997815][ T4581]  <TASK>
[  289.001158][ T4581]  dump_stack_lvl+0x188/0x250
[  289.006566][ T4581]  ? show_regs_print_info+0x20/0x20
[  289.012440][ T4581]  ? load_image+0x400/0x400
[  289.017171][ T4581]  sysfs_create_dir_ns+0x26a/0x290
[  289.023066][ T4581]  ? sysfs_warn_dup+0xa0/0xa0
[  289.028735][ T4581]  ? do_raw_spin_unlock+0x11d/0x230
[  289.034406][ T4581]  kobject_add_internal+0x6e0/0xd90
[  289.039833][ T4581]  kobject_init_and_add+0x128/0x190
[  289.045168][ T4581]  ? lockdep_softirqs_off+0x430/0x430
[  289.050658][ T4581]  ? kobject_add+0x230/0x230
[  289.055591][ T4581]  ? __init_swait_queue_head+0xa5/0x150
[  289.061815][ T4581]  gfs2_sys_fs_add+0x24f/0x4b0
[  289.066675][ T4581]  ? gfs2_recover_set+0x240/0x240
[  289.071802][ T4581]  ? snprintf+0xe5/0x140
[  289.076049][ T4581]  ? __free_pages+0x95/0x1a0
[  289.080977][ T4581]  ? vscnprintf+0x80/0x80
[  289.086055][ T4581]  gfs2_fill_super+0x120f/0x1f00
[  289.091315][ T4581]  ? gfs2_reconfigure+0xd30/0xd30
[  289.096884][ T4581]  ? sb_set_blocksize+0xa5/0xe0
[  289.102368][ T4581]  get_tree_bdev+0x3f1/0x610
[  289.107075][ T4581]  ? gfs2_reconfigure+0xd30/0xd30
[  289.112363][ T4581]  gfs2_get_tree+0x4d/0x1e0
[  289.117060][ T4581]  vfs_get_tree+0x88/0x270
[  289.122136][ T4581]  do_new_mount+0x24a/0xa40
[  289.127130][ T4581]  __se_sys_mount+0x2e3/0x3d0
[  289.132093][ T4581]  ? __x64_sys_mount+0xc0/0xc0
[  289.137034][ T4581]  ? lockdep_hardirqs_on+0x94/0x140
[  289.142745][ T4581]  ? __x64_sys_mount+0x1c/0xc0
[  289.147519][ T4581]  do_syscall_64+0x4c/0xa0
[  289.152301][ T4581]  ? clear_bhb_loop+0x30/0x80
[  289.157164][ T4581]  ? clear_bhb_loop+0x30/0x80
[  289.162499][ T4581]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  289.168574][ T4581] RIP: 0033:0x7f1c632dbf4a
[  289.173299][ T4581] 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
[  289.194792][ T4581] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.204886][ T4581] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  289.213273][ T4581] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  289.221344][ T4581] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  289.229581][ T4581] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  289.238008][ T4581] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  289.246089][ T4581]  </TASK>
[  289.259584][ T4581] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.273466][ T4581] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.664841][ T4583] loop1: detected capacity change from 0 to 32768
[  289.720045][ T4583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.728697][ T4583] CPU: 1 PID: 4583 Comm: syz.1.198 Not tainted syzkaller #0
[  289.736229][ T4583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  289.746754][ T4583] Call Trace:
[  289.750157][ T4583]  <TASK>
[  289.753300][ T4583]  dump_stack_lvl+0x188/0x250
[  289.758293][ T4583]  ? show_regs_print_info+0x20/0x20
[  289.764210][ T4583]  ? load_image+0x400/0x400
[  289.769151][ T4583]  sysfs_create_dir_ns+0x26a/0x290
[  289.774696][ T4583]  ? sysfs_warn_dup+0xa0/0xa0
[  289.779865][ T4583]  ? do_raw_spin_unlock+0x11d/0x230
[  289.785446][ T4583]  kobject_add_internal+0x6e0/0xd90
[  289.791681][ T4583]  kobject_init_and_add+0x128/0x190
[  289.796999][ T4583]  ? lockdep_softirqs_off+0x430/0x430
[  289.803017][ T4583]  ? kobject_add+0x230/0x230
[  289.808425][ T4583]  ? __init_swait_queue_head+0xa5/0x150
[  289.814937][ T4583]  gfs2_sys_fs_add+0x24f/0x4b0
[  289.820666][ T4583]  ? gfs2_recover_set+0x240/0x240
[  289.826657][ T4583]  ? snprintf+0xe5/0x140
[  289.831390][ T4583]  ? __free_pages+0x95/0x1a0
[  289.836263][ T4583]  ? vscnprintf+0x80/0x80
[  289.841442][ T4583]  gfs2_fill_super+0x120f/0x1f00
[  289.847001][ T4583]  ? gfs2_reconfigure+0xd30/0xd30
[  289.852747][ T4583]  ? sb_set_blocksize+0xa5/0xe0
[  289.857612][ T4583]  get_tree_bdev+0x3f1/0x610
[  289.862442][ T4583]  ? gfs2_reconfigure+0xd30/0xd30
[  289.867758][ T4583]  gfs2_get_tree+0x4d/0x1e0
[  289.872948][ T4583]  vfs_get_tree+0x88/0x270
[  289.878355][ T4583]  do_new_mount+0x24a/0xa40
[  289.883073][ T4583]  __se_sys_mount+0x2e3/0x3d0
[  289.888380][ T4583]  ? __x64_sys_mount+0xc0/0xc0
[  289.893414][ T4583]  ? lockdep_hardirqs_on+0x94/0x140
[  289.898975][ T4583]  ? __x64_sys_mount+0x1c/0xc0
[  289.904086][ T4583]  do_syscall_64+0x4c/0xa0
[  289.909099][ T4583]  ? clear_bhb_loop+0x30/0x80
[  289.914106][ T4583]  ? clear_bhb_loop+0x30/0x80
[  289.919270][ T4583]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  289.926169][ T4583] RIP: 0033:0x7f1c632dbf4a
[  289.931032][ T4583] 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
[  289.954829][ T4583] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.964824][ T4583] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  289.973329][ T4583] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  289.981737][ T4583] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  289.990833][ T4583] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  289.999762][ T4583] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  290.008465][ T4583]  </TASK>
[  290.014040][ T4583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.028267][ T4583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.408272][ T4584] loop1: detected capacity change from 0 to 32768
[  290.448807][ T4584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.457435][ T4584] CPU: 1 PID: 4584 Comm: syz.1.199 Not tainted syzkaller #0
[  290.464941][ T4584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  290.475200][ T4584] Call Trace:
[  290.478601][ T4584]  <TASK>
[  290.481835][ T4584]  dump_stack_lvl+0x188/0x250
[  290.486820][ T4584]  ? show_regs_print_info+0x20/0x20
[  290.492505][ T4584]  ? load_image+0x400/0x400
[  290.497604][ T4584]  sysfs_create_dir_ns+0x26a/0x290
[  290.502850][ T4584]  ? sysfs_warn_dup+0xa0/0xa0
[  290.507575][ T4584]  ? do_raw_spin_unlock+0x11d/0x230
[  290.512909][ T4584]  kobject_add_internal+0x6e0/0xd90
[  290.518356][ T4584]  kobject_init_and_add+0x128/0x190
[  290.523596][ T4584]  ? lockdep_softirqs_off+0x430/0x430
[  290.529369][ T4584]  ? kobject_add+0x230/0x230
[  290.534184][ T4584]  ? __init_swait_queue_head+0xa5/0x150
[  290.540213][ T4584]  gfs2_sys_fs_add+0x24f/0x4b0
[  290.545371][ T4584]  ? gfs2_recover_set+0x240/0x240
[  290.550816][ T4584]  ? snprintf+0xe5/0x140
[  290.556253][ T4584]  ? __free_pages+0x95/0x1a0
[  290.562215][ T4584]  ? vscnprintf+0x80/0x80
[  290.567134][ T4584]  gfs2_fill_super+0x120f/0x1f00
[  290.573113][ T4584]  ? gfs2_reconfigure+0xd30/0xd30
[  290.578334][ T4584]  ? sb_set_blocksize+0xa5/0xe0
[  290.583749][ T4584]  get_tree_bdev+0x3f1/0x610
[  290.588558][ T4584]  ? gfs2_reconfigure+0xd30/0xd30
[  290.593942][ T4584]  gfs2_get_tree+0x4d/0x1e0
[  290.598522][ T4584]  vfs_get_tree+0x88/0x270
[  290.603209][ T4584]  do_new_mount+0x24a/0xa40
[  290.608014][ T4584]  __se_sys_mount+0x2e3/0x3d0
[  290.613239][ T4584]  ? __x64_sys_mount+0xc0/0xc0
[  290.618681][ T4584]  ? lockdep_hardirqs_on+0x94/0x140
[  290.624153][ T4584]  ? __x64_sys_mount+0x1c/0xc0
[  290.629306][ T4584]  do_syscall_64+0x4c/0xa0
[  290.634001][ T4584]  ? clear_bhb_loop+0x30/0x80
[  290.638973][ T4584]  ? clear_bhb_loop+0x30/0x80
[  290.643749][ T4584]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  290.649826][ T4584] RIP: 0033:0x7f1c632dbf4a
[  290.654420][ T4584] 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
[  290.676091][ T4584] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.685064][ T4584] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  290.693678][ T4584] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  290.702142][ T4584] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  290.710709][ T4584] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  290.719350][ T4584] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  290.727970][ T4584]  </TASK>
[  290.732723][ T4584] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.748193][ T4584] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.108490][ T4586] loop1: detected capacity change from 0 to 32768
[  291.122438][ T4586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.130629][ T4586] CPU: 0 PID: 4586 Comm: syz.1.200 Not tainted syzkaller #0
[  291.138397][ T4586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  291.149173][ T4586] Call Trace:
[  291.152676][ T4586]  <TASK>
[  291.155744][ T4586]  dump_stack_lvl+0x188/0x250
[  291.160862][ T4586]  ? show_regs_print_info+0x20/0x20
[  291.166182][ T4586]  ? load_image+0x400/0x400
[  291.170970][ T4586]  sysfs_create_dir_ns+0x26a/0x290
[  291.176421][ T4586]  ? sysfs_warn_dup+0xa0/0xa0
[  291.181233][ T4586]  ? do_raw_spin_unlock+0x11d/0x230
[  291.186753][ T4586]  kobject_add_internal+0x6e0/0xd90
[  291.192155][ T4586]  kobject_init_and_add+0x128/0x190
[  291.197448][ T4586]  ? lockdep_softirqs_off+0x430/0x430
[  291.203354][ T4586]  ? kobject_add+0x230/0x230
[  291.208092][ T4586]  ? __init_swait_queue_head+0xa5/0x150
[  291.214286][ T4586]  gfs2_sys_fs_add+0x24f/0x4b0
[  291.219395][ T4586]  ? gfs2_recover_set+0x240/0x240
[  291.224542][ T4586]  ? snprintf+0xe5/0x140
[  291.228864][ T4586]  ? __free_pages+0x95/0x1a0
[  291.234058][ T4586]  ? vscnprintf+0x80/0x80
[  291.238940][ T4586]  gfs2_fill_super+0x120f/0x1f00
[  291.244659][ T4586]  ? gfs2_reconfigure+0xd30/0xd30
[  291.250826][ T4586]  ? sb_set_blocksize+0xa5/0xe0
[  291.256135][ T4586]  get_tree_bdev+0x3f1/0x610
[  291.260903][ T4586]  ? gfs2_reconfigure+0xd30/0xd30
[  291.266043][ T4586]  gfs2_get_tree+0x4d/0x1e0
[  291.271112][ T4586]  vfs_get_tree+0x88/0x270
[  291.276057][ T4586]  do_new_mount+0x24a/0xa40
[  291.281100][ T4586]  __se_sys_mount+0x2e3/0x3d0
[  291.285898][ T4586]  ? __x64_sys_mount+0xc0/0xc0
[  291.291042][ T4586]  ? lockdep_hardirqs_on+0x94/0x140
[  291.296930][ T4586]  ? __x64_sys_mount+0x1c/0xc0
[  291.302175][ T4586]  do_syscall_64+0x4c/0xa0
[  291.307144][ T4586]  ? clear_bhb_loop+0x30/0x80
[  291.313265][ T4586]  ? clear_bhb_loop+0x30/0x80
[  291.318501][ T4586]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  291.325009][ T4586] RIP: 0033:0x7f1c632dbf4a
[  291.329516][ T4586] 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
[  291.350239][ T4586] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  291.359471][ T4586] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  291.368238][ T4586] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  291.376723][ T4586] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  291.384885][ T4586] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  291.393879][ T4586] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  291.402785][ T4586]  </TASK>
[  291.413287][ T4586] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  291.428943][ T4586] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.792799][ T4587] loop1: detected capacity change from 0 to 32768
[  291.845185][ T4587] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.853174][ T4587] CPU: 1 PID: 4587 Comm: syz.1.201 Not tainted syzkaller #0
[  291.860956][ T4587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  291.871257][ T4587] Call Trace:
[  291.874689][ T4587]  <TASK>
[  291.877824][ T4587]  dump_stack_lvl+0x188/0x250
[  291.883060][ T4587]  ? show_regs_print_info+0x20/0x20
[  291.889009][ T4587]  ? load_image+0x400/0x400
[  291.894042][ T4587]  sysfs_create_dir_ns+0x26a/0x290
[  291.900255][ T4587]  ? sysfs_warn_dup+0xa0/0xa0
[  291.905601][ T4587]  ? do_raw_spin_unlock+0x11d/0x230
[  291.912889][ T4587]  kobject_add_internal+0x6e0/0xd90
[  291.918412][ T4587]  kobject_init_and_add+0x128/0x190
[  291.923818][ T4587]  ? lockdep_softirqs_off+0x430/0x430
[  291.929955][ T4587]  ? kobject_add+0x230/0x230
[  291.934684][ T4587]  ? __init_swait_queue_head+0xa5/0x150
[  291.940507][ T4587]  gfs2_sys_fs_add+0x24f/0x4b0
[  291.945713][ T4587]  ? gfs2_recover_set+0x240/0x240
[  291.950801][ T4587]  ? snprintf+0xe5/0x140
[  291.955409][ T4587]  ? __free_pages+0x95/0x1a0
[  291.960932][ T4587]  ? vscnprintf+0x80/0x80
[  291.965457][ T4587]  gfs2_fill_super+0x120f/0x1f00
[  291.971284][ T4587]  ? gfs2_reconfigure+0xd30/0xd30
[  291.977204][ T4587]  ? sb_set_blocksize+0xa5/0xe0
[  291.982247][ T4587]  get_tree_bdev+0x3f1/0x610
[  291.987439][ T4587]  ? gfs2_reconfigure+0xd30/0xd30
[  291.993221][ T4587]  gfs2_get_tree+0x4d/0x1e0
[  291.998827][ T4587]  vfs_get_tree+0x88/0x270
[  292.003977][ T4587]  do_new_mount+0x24a/0xa40
[  292.008734][ T4587]  __se_sys_mount+0x2e3/0x3d0
[  292.014608][ T4587]  ? __x64_sys_mount+0xc0/0xc0
[  292.019924][ T4587]  ? lockdep_hardirqs_on+0x94/0x140
[  292.025138][ T4587]  ? __x64_sys_mount+0x1c/0xc0
[  292.030165][ T4587]  do_syscall_64+0x4c/0xa0
[  292.034582][ T4587]  ? clear_bhb_loop+0x30/0x80
[  292.039247][ T4587]  ? clear_bhb_loop+0x30/0x80
[  292.043930][ T4587]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  292.050268][ T4587] RIP: 0033:0x7f1c632dbf4a
[  292.054778][ T4587] 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
[  292.075437][ T4587] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.084387][ T4587] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  292.092962][ T4587] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  292.101371][ T4587] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  292.109676][ T4587] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  292.118338][ T4587] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  292.126427][ T4587]  </TASK>
[  292.131181][ T4587] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.146683][ T4587] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/01/25 07:59:25 executed programs: 187
[  292.483638][ T4588] loop1: detected capacity change from 0 to 32768
[  292.528340][ T4588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.545638][ T4588] CPU: 1 PID: 4588 Comm: syz.1.202 Not tainted syzkaller #0
[  292.553420][ T4588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  292.564230][ T4588] Call Trace:
[  292.567651][ T4588]  <TASK>
[  292.570800][ T4588]  dump_stack_lvl+0x188/0x250
[  292.575635][ T4588]  ? show_regs_print_info+0x20/0x20
[  292.581140][ T4588]  ? load_image+0x400/0x400
[  292.586380][ T4588]  sysfs_create_dir_ns+0x26a/0x290
[  292.592641][ T4588]  ? sysfs_warn_dup+0xa0/0xa0
[  292.597801][ T4588]  ? do_raw_spin_unlock+0x11d/0x230
[  292.603481][ T4588]  kobject_add_internal+0x6e0/0xd90
[  292.609242][ T4588]  kobject_init_and_add+0x128/0x190
[  292.616755][ T4588]  ? lockdep_softirqs_off+0x430/0x430
[  292.622968][ T4588]  ? kobject_add+0x230/0x230
[  292.627685][ T4588]  ? __init_swait_queue_head+0xa5/0x150
[  292.634283][ T4588]  gfs2_sys_fs_add+0x24f/0x4b0
[  292.640102][ T4588]  ? gfs2_recover_set+0x240/0x240
[  292.645844][ T4588]  ? snprintf+0xe5/0x140
[  292.650801][ T4588]  ? __free_pages+0x95/0x1a0
[  292.655804][ T4588]  ? vscnprintf+0x80/0x80
[  292.660681][ T4588]  gfs2_fill_super+0x120f/0x1f00
[  292.666813][ T4588]  ? gfs2_reconfigure+0xd30/0xd30
[  292.672656][ T4588]  ? sb_set_blocksize+0xa5/0xe0
[  292.678049][ T4588]  get_tree_bdev+0x3f1/0x610
[  292.683009][ T4588]  ? gfs2_reconfigure+0xd30/0xd30
[  292.688669][ T4588]  gfs2_get_tree+0x4d/0x1e0
[  292.693837][ T4588]  vfs_get_tree+0x88/0x270
[  292.698809][ T4588]  do_new_mount+0x24a/0xa40
[  292.703491][ T4588]  __se_sys_mount+0x2e3/0x3d0
[  292.708231][ T4588]  ? __x64_sys_mount+0xc0/0xc0
[  292.713567][ T4588]  ? lockdep_hardirqs_on+0x94/0x140
[  292.719148][ T4588]  ? __x64_sys_mount+0x1c/0xc0
[  292.724016][ T4588]  do_syscall_64+0x4c/0xa0
[  292.728641][ T4588]  ? clear_bhb_loop+0x30/0x80
[  292.733892][ T4588]  ? clear_bhb_loop+0x30/0x80
[  292.739025][ T4588]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  292.745196][ T4588] RIP: 0033:0x7f1c632dbf4a
[  292.749965][ T4588] 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
[  292.771688][ T4588] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.780847][ T4588] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  292.789404][ T4588] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  292.798342][ T4588] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  292.806568][ T4588] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  292.816390][ T4588] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  292.825863][ T4588]  </TASK>
[  292.830433][ T4588] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.844005][ T4588] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.217347][ T4589] loop1: detected capacity change from 0 to 32768
[  293.265601][ T4589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.281316][ T4589] CPU: 0 PID: 4589 Comm: syz.1.203 Not tainted syzkaller #0
[  293.289528][ T4589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  293.302288][ T4589] Call Trace:
[  293.305954][ T4589]  <TASK>
[  293.311193][ T4589]  dump_stack_lvl+0x188/0x250
[  293.317753][ T4589]  ? show_regs_print_info+0x20/0x20
[  293.325468][ T4589]  ? load_image+0x400/0x400
[  293.330548][ T4589]  sysfs_create_dir_ns+0x26a/0x290
[  293.336882][ T4589]  ? sysfs_warn_dup+0xa0/0xa0
[  293.342212][ T4589]  ? do_raw_spin_unlock+0x11d/0x230
[  293.348062][ T4589]  kobject_add_internal+0x6e0/0xd90
[  293.353964][ T4589]  kobject_init_and_add+0x128/0x190
[  293.360237][ T4589]  ? lockdep_softirqs_off+0x430/0x430
[  293.366095][ T4589]  ? kobject_add+0x230/0x230
[  293.371441][ T4589]  ? __init_swait_queue_head+0xa5/0x150
[  293.377506][ T4589]  gfs2_sys_fs_add+0x24f/0x4b0
[  293.383176][ T4589]  ? gfs2_recover_set+0x240/0x240
[  293.388651][ T4589]  ? snprintf+0xe5/0x140
[  293.393527][ T4589]  ? __free_pages+0x95/0x1a0
[  293.398916][ T4589]  ? vscnprintf+0x80/0x80
[  293.403891][ T4589]  gfs2_fill_super+0x120f/0x1f00
[  293.409213][ T4589]  ? gfs2_reconfigure+0xd30/0xd30
[  293.415994][ T4589]  ? sb_set_blocksize+0xa5/0xe0
[  293.421954][ T4589]  get_tree_bdev+0x3f1/0x610
[  293.427161][ T4589]  ? gfs2_reconfigure+0xd30/0xd30
[  293.432378][ T4589]  gfs2_get_tree+0x4d/0x1e0
[  293.437683][ T4589]  vfs_get_tree+0x88/0x270
[  293.443336][ T4589]  do_new_mount+0x24a/0xa40
[  293.449387][ T4589]  __se_sys_mount+0x2e3/0x3d0
[  293.454667][ T4589]  ? __x64_sys_mount+0xc0/0xc0
[  293.460605][ T4589]  ? lockdep_hardirqs_on+0x94/0x140
[  293.466410][ T4589]  ? __x64_sys_mount+0x1c/0xc0
[  293.472805][ T4589]  do_syscall_64+0x4c/0xa0
[  293.478545][ T4589]  ? clear_bhb_loop+0x30/0x80
[  293.483984][ T4589]  ? clear_bhb_loop+0x30/0x80
[  293.489281][ T4589]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  293.495919][ T4589] RIP: 0033:0x7f1c632dbf4a
[  293.500448][ T4589] 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
[  293.523209][ T4589] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.532855][ T4589] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  293.542270][ T4589] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  293.551093][ T4589] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  293.560082][ T4589] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  293.568716][ T4589] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  293.577845][ T4589]  </TASK>
[  293.588994][ T4589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.603738][ T4589] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.965936][ T4590] loop1: detected capacity change from 0 to 32768
[  293.982609][ T4590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.991707][ T4590] CPU: 0 PID: 4590 Comm: syz.1.204 Not tainted syzkaller #0
[  294.000905][ T4590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.012746][ T4590] Call Trace:
[  294.016337][ T4590]  <TASK>
[  294.019497][ T4590]  dump_stack_lvl+0x188/0x250
[  294.025291][ T4590]  ? show_regs_print_info+0x20/0x20
[  294.030948][ T4590]  ? load_image+0x400/0x400
[  294.036294][ T4590]  sysfs_create_dir_ns+0x26a/0x290
[  294.042263][ T4590]  ? sysfs_warn_dup+0xa0/0xa0
[  294.047548][ T4590]  ? do_raw_spin_unlock+0x11d/0x230
[  294.054030][ T4590]  kobject_add_internal+0x6e0/0xd90
[  294.060659][ T4590]  kobject_init_and_add+0x128/0x190
[  294.068098][ T4590]  ? lockdep_softirqs_off+0x430/0x430
[  294.074783][ T4590]  ? kobject_add+0x230/0x230
[  294.079841][ T4590]  ? __init_swait_queue_head+0xa5/0x150
[  294.086028][ T4590]  gfs2_sys_fs_add+0x24f/0x4b0
[  294.091514][ T4590]  ? gfs2_recover_set+0x240/0x240
[  294.097104][ T4590]  ? snprintf+0xe5/0x140
[  294.101918][ T4590]  ? __free_pages+0x95/0x1a0
[  294.108138][ T4590]  ? vscnprintf+0x80/0x80
[  294.113236][ T4590]  gfs2_fill_super+0x120f/0x1f00
[  294.119027][ T4590]  ? gfs2_reconfigure+0xd30/0xd30
[  294.125090][ T4590]  ? sb_set_blocksize+0xa5/0xe0
[  294.130306][ T4590]  get_tree_bdev+0x3f1/0x610
[  294.135121][ T4590]  ? gfs2_reconfigure+0xd30/0xd30
[  294.140771][ T4590]  gfs2_get_tree+0x4d/0x1e0
[  294.145926][ T4590]  vfs_get_tree+0x88/0x270
[  294.150986][ T4590]  do_new_mount+0x24a/0xa40
[  294.155683][ T4590]  __se_sys_mount+0x2e3/0x3d0
[  294.161021][ T4590]  ? __x64_sys_mount+0xc0/0xc0
[  294.166325][ T4590]  ? lockdep_hardirqs_on+0x94/0x140
[  294.171814][ T4590]  ? __x64_sys_mount+0x1c/0xc0
[  294.177118][ T4590]  do_syscall_64+0x4c/0xa0
[  294.181843][ T4590]  ? clear_bhb_loop+0x30/0x80
[  294.187321][ T4590]  ? clear_bhb_loop+0x30/0x80
[  294.192107][ T4590]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  294.199424][ T4590] RIP: 0033:0x7f1c632dbf4a
[  294.205578][ T4590] 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
[  294.226812][ T4590] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.236584][ T4590] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  294.247047][ T4590] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  294.257298][ T4590] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  294.265855][ T4590] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  294.274950][ T4590] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  294.283646][ T4590]  </TASK>
[  294.288283][ T4590] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.303232][ T4590] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.661896][ T4591] loop1: detected capacity change from 0 to 32768
[  294.719714][ T4591] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.728548][ T4591] CPU: 1 PID: 4591 Comm: syz.1.205 Not tainted syzkaller #0
[  294.736950][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  294.748717][ T4591] Call Trace:
[  294.752037][ T4591]  <TASK>
[  294.755400][ T4591]  dump_stack_lvl+0x188/0x250
[  294.761248][ T4591]  ? show_regs_print_info+0x20/0x20
[  294.767266][ T4591]  ? load_image+0x400/0x400
[  294.772100][ T4591]  sysfs_create_dir_ns+0x26a/0x290
[  294.777751][ T4591]  ? sysfs_warn_dup+0xa0/0xa0
[  294.782907][ T4591]  ? do_raw_spin_unlock+0x11d/0x230
[  294.788497][ T4591]  kobject_add_internal+0x6e0/0xd90
[  294.793831][ T4591]  kobject_init_and_add+0x128/0x190
[  294.799596][ T4591]  ? lockdep_softirqs_off+0x430/0x430
[  294.805850][ T4591]  ? kobject_add+0x230/0x230
[  294.811094][ T4591]  ? __init_swait_queue_head+0xa5/0x150
[  294.817258][ T4591]  gfs2_sys_fs_add+0x24f/0x4b0
[  294.822222][ T4591]  ? gfs2_recover_set+0x240/0x240
[  294.828371][ T4591]  ? snprintf+0xe5/0x140
[  294.832836][ T4591]  ? __free_pages+0x95/0x1a0
[  294.838198][ T4591]  ? vscnprintf+0x80/0x80
[  294.843103][ T4591]  gfs2_fill_super+0x120f/0x1f00
[  294.849337][ T4591]  ? gfs2_reconfigure+0xd30/0xd30
[  294.854991][ T4591]  ? sb_set_blocksize+0xa5/0xe0
[  294.861257][ T4591]  get_tree_bdev+0x3f1/0x610
[  294.866803][ T4591]  ? gfs2_reconfigure+0xd30/0xd30
[  294.872326][ T4591]  gfs2_get_tree+0x4d/0x1e0
[  294.877316][ T4591]  vfs_get_tree+0x88/0x270
[  294.882795][ T4591]  do_new_mount+0x24a/0xa40
[  294.888281][ T4591]  __se_sys_mount+0x2e3/0x3d0
[  294.893329][ T4591]  ? __x64_sys_mount+0xc0/0xc0
[  294.899506][ T4591]  ? lockdep_hardirqs_on+0x94/0x140
[  294.906218][ T4591]  ? __x64_sys_mount+0x1c/0xc0
[  294.911345][ T4591]  do_syscall_64+0x4c/0xa0
[  294.916113][ T4591]  ? clear_bhb_loop+0x30/0x80
[  294.921306][ T4591]  ? clear_bhb_loop+0x30/0x80
[  294.926422][ T4591]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  294.933461][ T4591] RIP: 0033:0x7f1c632dbf4a
[  294.938206][ T4591] 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
[  294.959689][ T4591] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.969968][ T4591] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  294.979392][ T4591] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  294.989497][ T4591] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  294.998331][ T4591] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  295.007223][ T4591] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  295.016237][ T4591]  </TASK>
[  295.021247][ T4591] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.036830][ T4591] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  295.402709][ T4592] loop1: detected capacity change from 0 to 32768
[  295.475660][ T4592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.485051][ T4592] CPU: 0 PID: 4592 Comm: syz.1.206 Not tainted syzkaller #0
[  295.492973][ T4592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  295.504507][ T4592] Call Trace:
[  295.507910][ T4592]  <TASK>
[  295.511126][ T4592]  dump_stack_lvl+0x188/0x250
[  295.515837][ T4592]  ? show_regs_print_info+0x20/0x20
[  295.521326][ T4592]  ? load_image+0x400/0x400
[  295.526414][ T4592]  sysfs_create_dir_ns+0x26a/0x290
[  295.532137][ T4592]  ? sysfs_warn_dup+0xa0/0xa0
[  295.537347][ T4592]  ? do_raw_spin_unlock+0x11d/0x230
[  295.542848][ T4592]  kobject_add_internal+0x6e0/0xd90
[  295.548979][ T4592]  kobject_init_and_add+0x128/0x190
[  295.555165][ T4592]  ? lockdep_softirqs_off+0x430/0x430
[  295.561006][ T4592]  ? kobject_add+0x230/0x230
[  295.565727][ T4592]  ? __init_swait_queue_head+0xa5/0x150
[  295.571668][ T4592]  gfs2_sys_fs_add+0x24f/0x4b0
[  295.576873][ T4592]  ? gfs2_recover_set+0x240/0x240
[  295.582292][ T4592]  ? snprintf+0xe5/0x140
[  295.587050][ T4592]  ? __free_pages+0x95/0x1a0
[  295.591968][ T4592]  ? vscnprintf+0x80/0x80
[  295.596302][ T4592]  gfs2_fill_super+0x120f/0x1f00
[  295.601733][ T4592]  ? gfs2_reconfigure+0xd30/0xd30
[  295.606764][ T4592]  ? sb_set_blocksize+0xa5/0xe0
[  295.611953][ T4592]  get_tree_bdev+0x3f1/0x610
[  295.617109][ T4592]  ? gfs2_reconfigure+0xd30/0xd30
[  295.623000][ T4592]  gfs2_get_tree+0x4d/0x1e0
[  295.628120][ T4592]  vfs_get_tree+0x88/0x270
[  295.633080][ T4592]  do_new_mount+0x24a/0xa40
[  295.637705][ T4592]  __se_sys_mount+0x2e3/0x3d0
[  295.642797][ T4592]  ? __x64_sys_mount+0xc0/0xc0
[  295.647947][ T4592]  ? lockdep_hardirqs_on+0x94/0x140
[  295.653781][ T4592]  ? __x64_sys_mount+0x1c/0xc0
[  295.658728][ T4592]  do_syscall_64+0x4c/0xa0
[  295.663553][ T4592]  ? clear_bhb_loop+0x30/0x80
[  295.668396][ T4592]  ? clear_bhb_loop+0x30/0x80
[  295.673293][ T4592]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  295.679626][ T4592] RIP: 0033:0x7f1c632dbf4a
[  295.684143][ T4592] 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
[  295.705900][ T4592] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  295.714782][ T4592] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  295.723841][ T4592] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  295.733967][ T4592] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  295.743178][ T4592] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  295.753394][ T4592] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  295.762602][ T4592]  </TASK>
[  295.772949][ T4592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.788755][ T4592] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.161399][ T4593] loop1: detected capacity change from 0 to 32768
[  296.227125][ T4593] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.236078][ T4593] CPU: 0 PID: 4593 Comm: syz.1.207 Not tainted syzkaller #0
[  296.244015][ T4593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  296.255012][ T4593] Call Trace:
[  296.258867][ T4593]  <TASK>
[  296.262094][ T4593]  dump_stack_lvl+0x188/0x250
[  296.267267][ T4593]  ? show_regs_print_info+0x20/0x20
[  296.272504][ T4593]  ? load_image+0x400/0x400
[  296.277158][ T4593]  sysfs_create_dir_ns+0x26a/0x290
[  296.282493][ T4593]  ? sysfs_warn_dup+0xa0/0xa0
[  296.287730][ T4593]  ? do_raw_spin_unlock+0x11d/0x230
[  296.293266][ T4593]  kobject_add_internal+0x6e0/0xd90
[  296.298972][ T4593]  kobject_init_and_add+0x128/0x190
[  296.304311][ T4593]  ? lockdep_softirqs_off+0x430/0x430
[  296.310002][ T4593]  ? kobject_add+0x230/0x230
[  296.314961][ T4593]  ? __init_swait_queue_head+0xa5/0x150
[  296.321387][ T4593]  gfs2_sys_fs_add+0x24f/0x4b0
[  296.326583][ T4593]  ? gfs2_recover_set+0x240/0x240
[  296.332013][ T4593]  ? snprintf+0xe5/0x140
[  296.337740][ T4593]  ? __free_pages+0x95/0x1a0
[  296.342702][ T4593]  ? vscnprintf+0x80/0x80
[  296.347771][ T4593]  gfs2_fill_super+0x120f/0x1f00
[  296.353689][ T4593]  ? gfs2_reconfigure+0xd30/0xd30
[  296.359276][ T4593]  ? sb_set_blocksize+0xa5/0xe0
[  296.364708][ T4593]  get_tree_bdev+0x3f1/0x610
[  296.369409][ T4593]  ? gfs2_reconfigure+0xd30/0xd30
[  296.374629][ T4593]  gfs2_get_tree+0x4d/0x1e0
[  296.379749][ T4593]  vfs_get_tree+0x88/0x270
[  296.384371][ T4593]  do_new_mount+0x24a/0xa40
[  296.390149][ T4593]  __se_sys_mount+0x2e3/0x3d0
[  296.394860][ T4593]  ? __x64_sys_mount+0xc0/0xc0
[  296.400219][ T4593]  ? lockdep_hardirqs_on+0x94/0x140
[  296.405690][ T4593]  ? __x64_sys_mount+0x1c/0xc0
[  296.411009][ T4593]  do_syscall_64+0x4c/0xa0
[  296.415713][ T4593]  ? clear_bhb_loop+0x30/0x80
[  296.421094][ T4593]  ? clear_bhb_loop+0x30/0x80
[  296.426289][ T4593]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  296.434682][ T4593] RIP: 0033:0x7f1c632dbf4a
[  296.439874][ T4593] 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
[  296.462008][ T4593] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.471744][ T4593] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  296.480632][ T4593] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  296.490453][ T4593] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  296.498830][ T4593] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  296.507778][ T4593] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  296.516561][ T4593]  </TASK>
[  296.521178][ T4593] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.537291][ T4593] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.615986][   T27] INFO: task syz-executor:4304 blocked for more than 143 seconds.
[  296.633408][   T27]       Not tainted syzkaller #0
[  296.639175][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  296.650937][   T27] task:syz-executor    state:D stack:21808 pid: 4304 ppid:     1 flags:0x00004004
[  296.661290][   T27] Call Trace:
[  296.664863][   T27]  <TASK>
[  296.670537][   T27]  __schedule+0x11ef/0x43c0
[  296.675203][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  296.681805][   T27]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  296.688453][   T27]  ? _raw_spin_unlock+0x40/0x40
[  296.694225][   T27]  ? rcu_is_watching+0x11/0xa0
[  296.700229][   T27]  ? release_firmware_map_entry+0x190/0x190
[  296.707612][   T27]  schedule+0x11b/0x1e0
[  296.712168][   T27]  schedule_timeout+0x184/0x2d0
[  296.717675][   T27]  ? console_conditional_schedule+0x40/0x40
[  296.724339][   T27]  ? update_process_times+0x200/0x200
[  296.732326][   T27]  ? prepare_to_wait_event+0x42c/0x460
[  296.739123][   T27]  gfs2_gl_hash_clear+0x1ab/0x2f0
[  296.744661][   T27]  ? thaw_glock+0x150/0x150
[  296.750528][   T27]  ? gfs2_jindex_free+0x3a3/0x410
[  296.756319][   T27]  ? init_wait_entry+0xd0/0xd0
[  296.761613][   T27]  ? gfs2_setbit+0x5a0/0x5a0
[  296.766945][   T27]  gfs2_put_super+0x769/0x7d0
[  296.771932][   T27]  ? gfs2_evict_inode+0x1240/0x1240
[  296.779449][   T27]  generic_shutdown_super+0x130/0x300
[  296.788829][   T27]  kill_block_super+0x7c/0xe0
[  296.794095][   T27]  deactivate_locked_super+0x93/0xf0
[  296.800619][   T27]  cleanup_mnt+0x42d/0x4e0
[  296.809092][   T27]  ? lockdep_hardirqs_on+0x94/0x140
[  296.814917][   T27]  task_work_run+0x125/0x1a0
[  296.820838][   T27]  exit_to_user_mode_loop+0x10f/0x130
[  296.829572][   T27]  exit_to_user_mode_prepare+0xee/0x180
[  296.835258][   T27]  syscall_exit_to_user_mode+0x16/0x40
[  296.841374][   T27]  do_syscall_64+0x58/0xa0
[  296.849411][   T27]  ? clear_bhb_loop+0x30/0x80
[  296.854778][   T27]  ? clear_bhb_loop+0x30/0x80
[  296.872870][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  296.880565][   T27] RIP: 0033:0x7fe83be56f17
[  296.889083][   T27] RSP: 002b:00007fff268a6ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  296.899760][   T27] RAX: 0000000000000000 RBX: 00007fe83bebf71f RCX: 00007fe83be56f17
[  296.912573][   T27] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff268a6f80
[  296.922765][   T27] RBP: 00007fff268a6f80 R08: 00007fff268a7f80 R09: 00000000ffffffff
[  296.934205][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff268a8010
[  296.943766][   T27] R13: 00007fe83bebf71f R14: 0000000000023aa8 R15: 00007fff268a8050
[  296.957651][   T27]  </TASK>
[  296.961384][   T27] 
[  296.961384][   T27] Showing all locks held in the system:
[  296.970143][   T27] 1 lock held by khungtaskd/27:
[  296.975201][   T27]  #0: ffffffff8c31eaa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  296.990315][   T27] 2 locks held by getty/3951:
[  296.995737][   T27]  #0: ffff88802c69f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  297.009831][   T27]  #1: ffffc900025e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5df/0x1a70
[  297.021143][   T27] 1 lock held by syz-executor/4304:
[  297.027096][ T4594] loop1: detected capacity change from 0 to 32768
[  297.030137][   T27]  #0: ffff88807a92c0e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0xa0/0xd0
[  297.046982][   T27] 1 lock held by syz.1.208/4594:
[  297.052952][   T27] 
[  297.055315][   T27] =============================================
[  297.055315][   T27] 
[  297.066195][   T27] NMI backtrace for cpu 0
[  297.071023][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  297.078725][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  297.089960][   T27] Call Trace:
[  297.093545][   T27]  <TASK>
[  297.096950][   T27]  dump_stack_lvl+0x188/0x250
[  297.101955][   T27]  ? show_regs_print_info+0x20/0x20
[  297.106073][ T4594] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.107791][   T27]  ? load_image+0x400/0x400
[  297.120280][   T27]  ? tick_nohz_tick_stopped+0x7b/0xb0
[  297.126047][   T27]  ? nmi_cpu_backtrace+0x1b2/0x3d0
[  297.131448][   T27]  nmi_cpu_backtrace+0x3a2/0x3d0
[  297.136950][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  297.144238][   T27]  ? _printk+0xda/0x130
[  297.148621][   T27]  ? load_image+0x400/0x400
[  297.153630][   T27]  ? load_image+0x400/0x400
[  297.158363][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  297.166061][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  297.173117][   T27]  watchdog+0xe0f/0xe50
[  297.177900][   T27]  kthread+0x436/0x520
[  297.182707][   T27]  ? hungtask_pm_notify+0x40/0x40
[  297.188428][   T27]  ? kthread_blkcg+0xd0/0xd0
[  297.193434][   T27]  ret_from_fork+0x1f/0x30
[  297.198420][   T27]  </TASK>
[  297.201621][ T4594] CPU: 1 PID: 4594 Comm: syz.1.208 Not tainted syzkaller #0
[  297.201986][   T27] Sending NMI from CPU 0 to CPUs 1:
[  297.210078][ T4594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  297.210093][ T4594] Call Trace:
[  297.210101][ T4594]  <TASK>
[  297.210110][ T4594]  dump_stack_lvl+0x188/0x250
[  297.210140][ T4594]  ? show_regs_print_info+0x20/0x20
[  297.210163][ T4594]  ? load_image+0x400/0x400
[  297.210198][ T4594]  sysfs_create_dir_ns+0x26a/0x290
[  297.215952][    C1] NMI backtrace for cpu 1
[  297.215966][    C1] CPU: 1 PID: 4594 Comm: syz.1.208 Not tainted syzkaller #0
[  297.215982][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  297.215990][    C1] RIP: 0010:io_serial_in+0x73/0xb0
[  297.216032][    C1] Code: e8 f2 ac 29 fd 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 f3 b0 6e fd 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 44 89 f9 80 e1 07 38 c1 7c aa 4c
[  297.216045][    C1] RSP: 0018:ffffc90004236f50 EFLAGS: 00000002
[  297.216058][    C1] RAX: 1ffffffff2cbfd00 RBX: 00000000000003fd RCX: 0000000000000000
[  297.216069][    C1] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
[  297.216079][    C1] RBP: 0000000000000020 R08: 0000000000000003 R09: 0000000000000004
[  297.216088][    C1] R10: dffffc0000000000 R11: fffff52000846de0 R12: dffffc0000000000
[  297.216099][    C1] R13: 1ffffffff2c63530 R14: ffffffff965fe860 R15: 0000000000000000
[  297.216110][    C1] FS:  0000555575ae7500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[  297.216123][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  297.216133][    C1] CR2: 00007f008871c000 CR3: 000000002b6da000 CR4: 00000000003506e0
[  297.216149][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  297.216157][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  297.216167][    C1] Call Trace:
[  297.216175][    C1]  <TASK>
[  297.216182][    C1]  wait_for_xmitr+0x4c/0x260
[  297.216200][    C1]  ? _raw_spin_lock_irqsave+0xbc/0x100
[  297.216219][    C1]  serial8250_console_putchar+0x1a/0x50
[  297.216235][    C1]  uart_console_write+0xaa/0x100
[  297.216249][    C1]  ? serial8250_console_write+0x1000/0x1000
[  297.216267][    C1]  serial8250_console_write+0xc46/0x1000
[  297.216288][    C1]  ? serial8250_set_defaults+0x600/0x600
[  297.216327][    C1]  ? read_lock_is_recursive+0x10/0x10
[  297.216344][    C1]  ? do_raw_spin_lock+0x128/0x2f0
[  297.216359][    C1]  ? __rwlock_init+0x140/0x140
[  297.216374][    C1]  ? do_raw_spin_unlock+0x11d/0x230
[  297.216390][    C1]  console_unlock+0xb9a/0x1120
[  297.216407][    C1]  ? console_trylock_spinning+0x370/0x370
[  297.216425][    C1]  ? read_lock_is_recursive+0x10/0x10
[  297.216441][    C1]  ? __rwlock_init+0x140/0x140
[  297.216458][    C1]  ? vprintk_emit+0x150/0x150
[  297.216477][    C1]  vprintk_emit+0xc0/0x150
[  297.216491][    C1]  _printk+0xda/0x130
[  297.216508][    C1]  ? deref_stack_reg+0xd0/0x120
[  297.216524][    C1]  ? sysfs_create_dir_ns+0x26a/0x290
[  297.216538][    C1]  ? load_image+0x400/0x400
[  297.216555][    C1]  ? wq_watchdog_touch+0xeb/0x170
[  297.216571][    C1]  ? sysfs_create_dir_ns+0x26a/0x290
[  297.216584][    C1]  ? sysfs_create_dir_ns+0x26a/0x290
[  297.216596][    C1]  __show_trace_log_lvl+0x44e/0x550
[  297.216617][    C1]  ? sysfs_create_dir_ns+0x26a/0x290
[  297.216631][    C1]  dump_stack_lvl+0x188/0x250
[  297.216648][    C1]  ? show_regs_print_info+0x20/0x20
[  297.216663][    C1]  ? load_image+0x400/0x400
[  297.216683][    C1]  sysfs_create_dir_ns+0x26a/0x290
[  297.216698][    C1]  ? sysfs_warn_dup+0xa0/0xa0
[  297.216712][    C1]  ? do_raw_spin_unlock+0x11d/0x230
[  297.216727][    C1]  kobject_add_internal+0x6e0/0xd90
[  297.216745][    C1]  kobject_init_and_add+0x128/0x190
[  297.216766][    C1]  ? lockdep_softirqs_off+0x430/0x430
[  297.216783][    C1]  ? kobject_add+0x230/0x230
[  297.216798][    C1]  ? __init_swait_queue_head+0xa5/0x150
[  297.216816][    C1]  gfs2_sys_fs_add+0x24f/0x4b0
[  297.216831][    C1]  ? gfs2_recover_set+0x240/0x240
[  297.216845][    C1]  ? snprintf+0xe5/0x140
[  297.216860][    C1]  ? __free_pages+0x95/0x1a0
[  297.216877][    C1]  ? vscnprintf+0x80/0x80
[  297.216897][    C1]  gfs2_fill_super+0x120f/0x1f00
[  297.216918][    C1]  ? gfs2_reconfigure+0xd30/0xd30
[  297.216940][    C1]  ? sb_set_blocksize+0xa5/0xe0
[  297.216955][    C1]  get_tree_bdev+0x3f1/0x610
[  297.216971][    C1]  ? gfs2_reconfigure+0xd30/0xd30
[  297.216987][    C1]  gfs2_get_tree+0x4d/0x1e0
[  297.217003][    C1]  vfs_get_tree+0x88/0x270
[  297.217018][    C1]  do_new_mount+0x24a/0xa40
[  297.217036][    C1]  __se_sys_mount+0x2e3/0x3d0
[  297.217053][    C1]  ? __x64_sys_mount+0xc0/0xc0
[  297.217076][    C1]  ? lockdep_hardirqs_on+0x94/0x140
[  297.217091][    C1]  ? __x64_sys_mount+0x1c/0xc0
[  297.217106][    C1]  do_syscall_64+0x4c/0xa0
[  297.217119][    C1]  ? clear_bhb_loop+0x30/0x80
[  297.217132][    C1]  ? clear_bhb_loop+0x30/0x80
[  297.217146][    C1]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  297.217160][    C1] RIP: 0033:0x7f1c632dbf4a
[  297.217175][    C1] 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
[  297.217187][    C1] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.217201][    C1] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  297.217212][    C1] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  297.217222][    C1] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  297.217231][    C1] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  297.217241][    C1] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  297.217257][    C1]  </TASK>
[  297.219549][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  297.228148][ T4594]  ? sysfs_warn_dup+0xa0/0xa0
[  297.815331][ T4594]  ? do_raw_spin_unlock+0x11d/0x230
[  297.820932][ T4594]  kobject_add_internal+0x6e0/0xd90
[  297.826487][ T4594]  kobject_init_and_add+0x128/0x190
[  297.832331][ T4594]  ? lockdep_softirqs_off+0x430/0x430
[  297.838251][ T4594]  ? kobject_add+0x230/0x230
[  297.843753][ T4594]  ? __init_swait_queue_head+0xa5/0x150
[  297.849648][ T4594]  gfs2_sys_fs_add+0x24f/0x4b0
[  297.855094][ T4594]  ? gfs2_recover_set+0x240/0x240
[  297.860980][ T4594]  ? snprintf+0xe5/0x140
[  297.866298][ T4594]  ? __free_pages+0x95/0x1a0
[  297.871189][ T4594]  ? vscnprintf+0x80/0x80
[  297.875714][ T4594]  gfs2_fill_super+0x120f/0x1f00
[  297.881013][ T4594]  ? gfs2_reconfigure+0xd30/0xd30
[  297.886361][ T4594]  ? sb_set_blocksize+0xa5/0xe0
[  297.891690][ T4594]  get_tree_bdev+0x3f1/0x610
[  297.896639][ T4594]  ? gfs2_reconfigure+0xd30/0xd30
[  297.902248][ T4594]  gfs2_get_tree+0x4d/0x1e0
[  297.907354][ T4594]  vfs_get_tree+0x88/0x270
[  297.911884][ T4594]  do_new_mount+0x24a/0xa40
[  297.916646][ T4594]  __se_sys_mount+0x2e3/0x3d0
[  297.921839][ T4594]  ? __x64_sys_mount+0xc0/0xc0
[  297.927130][ T4594]  ? lockdep_hardirqs_on+0x94/0x140
[  297.932684][ T4594]  ? __x64_sys_mount+0x1c/0xc0
[  297.938171][ T4594]  do_syscall_64+0x4c/0xa0
[  297.942876][ T4594]  ? clear_bhb_loop+0x30/0x80
[  297.947848][ T4594]  ? clear_bhb_loop+0x30/0x80
[  297.952734][ T4594]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  297.959327][ T4594] RIP: 0033:0x7f1c632dbf4a
[  297.963868][ T4594] 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
[  297.985983][ T4594] RSP: 002b:00007ffdfa39b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.995735][ T4594] RAX: ffffffffffffffda RBX: 00007ffdfa39b610 RCX: 00007f1c632dbf4a
[  298.005916][ T4594] RDX: 00002000000002c0 RSI: 0000200000000100 RDI: 00007ffdfa39b5d0
[  298.015418][ T4594] RBP: 00002000000002c0 R08: 00007ffdfa39b610 R09: 0000000000008c9b
[  298.024640][ T4594] R10: 0000000000008c9b R11: 0000000000000246 R12: 0000200000000100
[  298.033367][ T4594] R13: 00007ffdfa39b5d0 R14: 0000000000012760 R15: 0000200000000400
[  298.042271][ T4594]  </TASK>
[  298.045604][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  298.050679][ T4594] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  298.054020][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  298.054036][   T27] Call Trace:
[  298.068162][ T4594] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.078937][   T27]  <TASK>
[  298.078954][   T27]  dump_stack_lvl+0x188/0x250
[  298.078988][   T27]  ? show_regs_print_info+0x20/0x20
[  298.079008][   T27]  ? load_image+0x400/0x400
[  298.079039][   T27]  panic+0x2e5/0x810
[  298.121963][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  298.127946][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  298.133210][   T27]  ? __irq_work_queue_local+0x12c/0x190
[  298.139380][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  298.145743][   T27]  watchdog+0xe4e/0xe50
[  298.149908][   T27]  kthread+0x436/0x520
[  298.153970][   T27]  ? hungtask_pm_notify+0x40/0x40
[  298.158994][   T27]  ? kthread_blkcg+0xd0/0xd0
[  298.163631][   T27]  ret_from_fork+0x1f/0x30
[  298.168049][   T27]  </TASK>
[  298.171755][   T27] Kernel Offset: disabled
[  298.176311][   T27] Rebooting in 86400 seconds..