e Engine/Google Compute Engine, BIOS Google 04/18/2026
[  280.442970][ T4620] Call Trace:
[  280.446493][ T4620]  <TASK>
[  280.449458][ T4620]  dump_stack_lvl+0x188/0x24e
[  280.454203][ T4620]  ? show_regs_print_info+0x12/0x12
[  280.459475][ T4620]  ? load_image+0x400/0x400
[  280.464051][ T4620]  sysfs_create_dir_ns+0x26a/0x290
[  280.469221][ T4620]  ? sysfs_warn_dup+0xa0/0xa0
[  280.473962][ T4620]  ? do_raw_spin_unlock+0x11d/0x230
[  280.479216][ T4620]  kobject_add_internal+0x61c/0xcc0
[  280.484482][ T4620]  kobject_init_and_add+0x128/0x190
[  280.489737][ T4620]  ? lockdep_softirqs_off+0x430/0x430
[  280.495180][ T4620]  ? kobject_add+0x230/0x230
[  280.499869][ T4620]  ? __init_swait_queue_head+0xa5/0x150
[  280.505484][ T4620]  gfs2_sys_fs_add+0x24f/0x4b0
[  280.510336][ T4620]  ? gfs2_recover_set+0x240/0x240
[  280.515436][ T4620]  ? snprintf+0xe5/0x140
[  280.519742][ T4620]  ? vscnprintf+0x80/0x80
[  280.524136][ T4620]  gfs2_fill_super+0x128c/0x1fb0
[  280.529142][ T4620]  ? gfs2_reconfigure+0xd30/0xd30
[  280.534233][ T4620]  ? sb_set_blocksize+0xa5/0xe0
[  280.539164][ T4620]  get_tree_bdev+0x3f1/0x610
[  280.543833][ T4620]  ? gfs2_reconfigure+0xd30/0xd30
[  280.548918][ T4620]  gfs2_get_tree+0x4d/0x1e0
[  280.553476][ T4620]  vfs_get_tree+0x88/0x270
[  280.557954][ T4620]  do_new_mount+0x24a/0xa40
[  280.562530][ T4620]  __se_sys_mount+0x2e3/0x3d0
[  280.567288][ T4620]  ? __x64_sys_mount+0xc0/0xc0
[  280.572117][ T4620]  ? lockdep_hardirqs_on+0x94/0x140
[  280.577457][ T4620]  ? __x64_sys_mount+0x1c/0xc0
[  280.582277][ T4620]  do_syscall_64+0x4c/0xa0
[  280.586754][ T4620]  ? clear_bhb_loop+0x60/0xb0
[  280.591493][ T4620]  ? clear_bhb_loop+0x60/0xb0
[  280.596227][ T4620]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  280.602177][ T4620] RIP: 0033:0x7f2bc3f9e04a
[  280.606633][ T4620] 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
[  280.626292][ T4620] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  280.634773][ T4620] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  280.642799][ T4620] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  280.650822][ T4620] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  280.658873][ T4620] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  280.666898][ T4620] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  280.674933][ T4620]  </TASK>
[  280.679593][ T4620] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  280.693753][ T4620] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/26 07:41:50 executed programs: 163
[  281.016849][ T4621] loop1: detected capacity change from 0 to 32768
[  281.035229][ T4621] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.042774][ T4621] CPU: 1 PID: 4621 Comm: syz.1.178 Not tainted syzkaller #0
[  281.050211][ T4621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  281.060303][ T4621] Call Trace:
[  281.063637][ T4621]  <TASK>
[  281.066591][ T4621]  dump_stack_lvl+0x188/0x24e
[  281.071307][ T4621]  ? show_regs_print_info+0x12/0x12
[  281.076538][ T4621]  ? load_image+0x400/0x400
[  281.081083][ T4621]  sysfs_create_dir_ns+0x26a/0x290
[  281.086234][ T4621]  ? sysfs_warn_dup+0xa0/0xa0
[  281.090945][ T4621]  ? do_raw_spin_unlock+0x11d/0x230
[  281.096181][ T4621]  kobject_add_internal+0x61c/0xcc0
[  281.101425][ T4621]  kobject_init_and_add+0x128/0x190
[  281.106649][ T4621]  ? lockdep_softirqs_off+0x430/0x430
[  281.112149][ T4621]  ? kobject_add+0x230/0x230
[  281.116786][ T4621]  ? __init_swait_queue_head+0xa5/0x150
[  281.122378][ T4621]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.127194][ T4621]  ? gfs2_recover_set+0x240/0x240
[  281.132266][ T4621]  ? snprintf+0xe5/0x140
[  281.136569][ T4621]  ? vscnprintf+0x80/0x80
[  281.140944][ T4621]  gfs2_fill_super+0x128c/0x1fb0
[  281.145940][ T4621]  ? gfs2_reconfigure+0xd30/0xd30
[  281.151002][ T4621]  ? sb_set_blocksize+0xa5/0xe0
[  281.155893][ T4621]  get_tree_bdev+0x3f1/0x610
[  281.160552][ T4621]  ? gfs2_reconfigure+0xd30/0xd30
[  281.165609][ T4621]  gfs2_get_tree+0x4d/0x1e0
[  281.170157][ T4621]  vfs_get_tree+0x88/0x270
[  281.174607][ T4621]  do_new_mount+0x24a/0xa40
[  281.179155][ T4621]  __se_sys_mount+0x2e3/0x3d0
[  281.183864][ T4621]  ? __x64_sys_mount+0xc0/0xc0
[  281.188658][ T4621]  ? lockdep_hardirqs_on+0x94/0x140
[  281.193887][ T4621]  ? __x64_sys_mount+0x1c/0xc0
[  281.198707][ T4621]  do_syscall_64+0x4c/0xa0
[  281.203178][ T4621]  ? clear_bhb_loop+0x60/0xb0
[  281.207886][ T4621]  ? clear_bhb_loop+0x60/0xb0
[  281.212597][ T4621]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  281.218524][ T4621] RIP: 0033:0x7f2bc3f9e04a
[  281.222968][ T4621] 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
[  281.242606][ T4621] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.251052][ T4621] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  281.259054][ T4621] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  281.267053][ T4621] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  281.275049][ T4621] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  281.283043][ T4621] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  281.291059][ T4621]  </TASK>
[  281.299894][ T4621] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.316870][ T4621] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  281.661216][ T4622] loop1: detected capacity change from 0 to 32768
[  281.677338][ T4622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  281.684874][ T4622] CPU: 1 PID: 4622 Comm: syz.1.179 Not tainted syzkaller #0
[  281.692206][ T4622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  281.702337][ T4622] Call Trace:
[  281.705661][ T4622]  <TASK>
[  281.708637][ T4622]  dump_stack_lvl+0x188/0x24e
[  281.713388][ T4622]  ? show_regs_print_info+0x12/0x12
[  281.718650][ T4622]  ? load_image+0x400/0x400
[  281.723226][ T4622]  sysfs_create_dir_ns+0x26a/0x290
[  281.728400][ T4622]  ? sysfs_warn_dup+0xa0/0xa0
[  281.733486][ T4622]  ? do_raw_spin_unlock+0x11d/0x230
[  281.738737][ T4622]  kobject_add_internal+0x61c/0xcc0
[  281.744000][ T4622]  kobject_init_and_add+0x128/0x190
[  281.749510][ T4622]  ? lockdep_softirqs_off+0x430/0x430
[  281.754955][ T4622]  ? kobject_add+0x230/0x230
[  281.759608][ T4622]  ? __init_swait_queue_head+0xa5/0x150
[  281.765223][ T4622]  gfs2_sys_fs_add+0x24f/0x4b0
[  281.770053][ T4622]  ? gfs2_recover_set+0x240/0x240
[  281.775139][ T4622]  ? snprintf+0xe5/0x140
[  281.779445][ T4622]  ? vscnprintf+0x80/0x80
[  281.783839][ T4622]  gfs2_fill_super+0x128c/0x1fb0
[  281.788836][ T4622]  ? gfs2_reconfigure+0xd30/0xd30
[  281.793909][ T4622]  ? sb_set_blocksize+0xa5/0xe0
[  281.798798][ T4622]  get_tree_bdev+0x3f1/0x610
[  281.803428][ T4622]  ? gfs2_reconfigure+0xd30/0xd30
[  281.808482][ T4622]  gfs2_get_tree+0x4d/0x1e0
[  281.813018][ T4622]  vfs_get_tree+0x88/0x270
[  281.817466][ T4622]  do_new_mount+0x24a/0xa40
[  281.822009][ T4622]  __se_sys_mount+0x2e3/0x3d0
[  281.826717][ T4622]  ? __x64_sys_mount+0xc0/0xc0
[  281.831512][ T4622]  ? lockdep_hardirqs_on+0x94/0x140
[  281.836752][ T4622]  ? __x64_sys_mount+0x1c/0xc0
[  281.841562][ T4622]  do_syscall_64+0x4c/0xa0
[  281.846031][ T4622]  ? clear_bhb_loop+0x60/0xb0
[  281.850829][ T4622]  ? clear_bhb_loop+0x60/0xb0
[  281.855553][ T4622]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  281.861489][ T4622] RIP: 0033:0x7f2bc3f9e04a
[  281.865932][ T4622] 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
[  281.885575][ T4622] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  281.894023][ T4622] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  281.902023][ T4622] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  281.910020][ T4622] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  281.918017][ T4622] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  281.926019][ T4622] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  281.934035][ T4622]  </TASK>
[  281.943384][ T4622] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  281.959482][ T4622] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.297485][ T4623] loop1: detected capacity change from 0 to 32768
[  282.305755][ T4623] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.315640][ T4623] CPU: 1 PID: 4623 Comm: syz.1.180 Not tainted syzkaller #0
[  282.323014][ T4623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  282.333118][ T4623] Call Trace:
[  282.336453][ T4623]  <TASK>
[  282.339438][ T4623]  dump_stack_lvl+0x188/0x24e
[  282.344191][ T4623]  ? show_regs_print_info+0x12/0x12
[  282.349461][ T4623]  ? load_image+0x400/0x400
[  282.354034][ T4623]  sysfs_create_dir_ns+0x26a/0x290
[  282.359209][ T4623]  ? sysfs_warn_dup+0xa0/0xa0
[  282.363955][ T4623]  ? do_raw_spin_unlock+0x11d/0x230
[  282.369281][ T4623]  kobject_add_internal+0x61c/0xcc0
[  282.374547][ T4623]  kobject_init_and_add+0x128/0x190
[  282.379807][ T4623]  ? lockdep_softirqs_off+0x430/0x430
[  282.385261][ T4623]  ? kobject_add+0x230/0x230
[  282.389922][ T4623]  ? __init_swait_queue_head+0xa5/0x150
[  282.395536][ T4623]  gfs2_sys_fs_add+0x24f/0x4b0
[  282.400373][ T4623]  ? gfs2_recover_set+0x240/0x240
[  282.405470][ T4623]  ? snprintf+0xe5/0x140
[  282.409774][ T4623]  ? vscnprintf+0x80/0x80
[  282.414168][ T4623]  gfs2_fill_super+0x128c/0x1fb0
[  282.419173][ T4623]  ? gfs2_reconfigure+0xd30/0xd30
[  282.424330][ T4623]  ? sb_set_blocksize+0xa5/0xe0
[  282.429253][ T4623]  get_tree_bdev+0x3f1/0x610
[  282.434129][ T4623]  ? gfs2_reconfigure+0xd30/0xd30
[  282.439209][ T4623]  gfs2_get_tree+0x4d/0x1e0
[  282.443770][ T4623]  vfs_get_tree+0x88/0x270
[  282.448274][ T4623]  do_new_mount+0x24a/0xa40
[  282.452863][ T4623]  __se_sys_mount+0x2e3/0x3d0
[  282.457606][ T4623]  ? __x64_sys_mount+0xc0/0xc0
[  282.462436][ T4623]  ? lockdep_hardirqs_on+0x94/0x140
[  282.467683][ T4623]  ? __x64_sys_mount+0x1c/0xc0
[  282.472516][ T4623]  do_syscall_64+0x4c/0xa0
[  282.476992][ T4623]  ? clear_bhb_loop+0x60/0xb0
[  282.481720][ T4623]  ? clear_bhb_loop+0x60/0xb0
[  282.486458][ T4623]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  282.492407][ T4623] RIP: 0033:0x7f2bc3f9e04a
[  282.496871][ T4623] 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
[  282.516617][ T4623] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  282.525091][ T4623] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  282.533115][ T4623] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  282.541131][ T4623] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  282.549150][ T4623] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  282.557206][ T4623] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  282.565251][ T4623]  </TASK>
[  282.569566][ T4623] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  282.582839][ T4623] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  282.909466][ T4624] loop1: detected capacity change from 0 to 32768
[  282.929423][ T4624] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  282.936923][ T4624] CPU: 1 PID: 4624 Comm: syz.1.181 Not tainted syzkaller #0
[  282.944336][ T4624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  282.954408][ T4624] Call Trace:
[  282.957703][ T4624]  <TASK>
[  282.960645][ T4624]  dump_stack_lvl+0x188/0x24e
[  282.965353][ T4624]  ? show_regs_print_info+0x12/0x12
[  282.970591][ T4624]  ? load_image+0x400/0x400
[  282.975167][ T4624]  sysfs_create_dir_ns+0x26a/0x290
[  282.980354][ T4624]  ? sysfs_warn_dup+0xa0/0xa0
[  282.985093][ T4624]  ? do_raw_spin_unlock+0x11d/0x230
[  282.990357][ T4624]  kobject_add_internal+0x61c/0xcc0
[  282.995615][ T4624]  kobject_init_and_add+0x128/0x190
[  283.000867][ T4624]  ? lockdep_softirqs_off+0x430/0x430
[  283.006309][ T4624]  ? kobject_add+0x230/0x230
[  283.010972][ T4624]  ? __init_swait_queue_head+0xa5/0x150
[  283.016587][ T4624]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.021420][ T4624]  ? gfs2_recover_set+0x240/0x240
[  283.026560][ T4624]  ? snprintf+0xe5/0x140
[  283.030868][ T4624]  ? vscnprintf+0x80/0x80
[  283.035265][ T4624]  gfs2_fill_super+0x128c/0x1fb0
[  283.040279][ T4624]  ? gfs2_reconfigure+0xd30/0xd30
[  283.045374][ T4624]  ? sb_set_blocksize+0xa5/0xe0
[  283.050290][ T4624]  get_tree_bdev+0x3f1/0x610
[  283.055038][ T4624]  ? gfs2_reconfigure+0xd30/0xd30
[  283.060117][ T4624]  gfs2_get_tree+0x4d/0x1e0
[  283.064679][ T4624]  vfs_get_tree+0x88/0x270
[  283.069153][ T4624]  do_new_mount+0x24a/0xa40
[  283.073740][ T4624]  __se_sys_mount+0x2e3/0x3d0
[  283.078475][ T4624]  ? __x64_sys_mount+0xc0/0xc0
[  283.083293][ T4624]  ? lockdep_hardirqs_on+0x94/0x140
[  283.088550][ T4624]  ? __x64_sys_mount+0x1c/0xc0
[  283.093377][ T4624]  do_syscall_64+0x4c/0xa0
[  283.097856][ T4624]  ? clear_bhb_loop+0x60/0xb0
[  283.102588][ T4624]  ? clear_bhb_loop+0x60/0xb0
[  283.107330][ T4624]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  283.113282][ T4624] RIP: 0033:0x7f2bc3f9e04a
[  283.117750][ T4624] 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
[  283.137420][ T4624] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.145892][ T4624] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  283.153929][ T4624] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  283.161956][ T4624] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  283.169985][ T4624] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  283.178010][ T4624] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  283.186051][ T4624]  </TASK>
[  283.199007][ T4624] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.212673][ T4624] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  283.533252][ T4625] loop1: detected capacity change from 0 to 32768
[  283.552059][ T4625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  283.559576][ T4625] CPU: 1 PID: 4625 Comm: syz.1.182 Not tainted syzkaller #0
[  283.566920][ T4625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  283.577024][ T4625] Call Trace:
[  283.580358][ T4625]  <TASK>
[  283.583344][ T4625]  dump_stack_lvl+0x188/0x24e
[  283.588097][ T4625]  ? show_regs_print_info+0x12/0x12
[  283.593358][ T4625]  ? load_image+0x400/0x400
[  283.597929][ T4625]  sysfs_create_dir_ns+0x26a/0x290
[  283.603113][ T4625]  ? sysfs_warn_dup+0xa0/0xa0
[  283.607858][ T4625]  ? do_raw_spin_unlock+0x11d/0x230
[  283.613123][ T4625]  kobject_add_internal+0x61c/0xcc0
[  283.618388][ T4625]  kobject_init_and_add+0x128/0x190
[  283.623654][ T4625]  ? lockdep_softirqs_off+0x430/0x430
[  283.629095][ T4625]  ? kobject_add+0x230/0x230
[  283.633752][ T4625]  ? __init_swait_queue_head+0xa5/0x150
[  283.639370][ T4625]  gfs2_sys_fs_add+0x24f/0x4b0
[  283.644212][ T4625]  ? gfs2_recover_set+0x240/0x240
[  283.649314][ T4625]  ? snprintf+0xe5/0x140
[  283.653621][ T4625]  ? vscnprintf+0x80/0x80
[  283.658025][ T4625]  gfs2_fill_super+0x128c/0x1fb0
[  283.663036][ T4625]  ? gfs2_reconfigure+0xd30/0xd30
[  283.668125][ T4625]  ? sb_set_blocksize+0xa5/0xe0
[  283.673049][ T4625]  get_tree_bdev+0x3f1/0x610
[  283.677713][ T4625]  ? gfs2_reconfigure+0xd30/0xd30
[  283.682796][ T4625]  gfs2_get_tree+0x4d/0x1e0
[  283.687370][ T4625]  vfs_get_tree+0x88/0x270
[  283.691855][ T4625]  do_new_mount+0x24a/0xa40
[  283.696425][ T4625]  __se_sys_mount+0x2e3/0x3d0
[  283.701168][ T4625]  ? __x64_sys_mount+0xc0/0xc0
[  283.706002][ T4625]  ? lockdep_hardirqs_on+0x94/0x140
[  283.711258][ T4625]  ? __x64_sys_mount+0x1c/0xc0
[  283.716073][ T4625]  do_syscall_64+0x4c/0xa0
[  283.720552][ T4625]  ? clear_bhb_loop+0x60/0xb0
[  283.725290][ T4625]  ? clear_bhb_loop+0x60/0xb0
[  283.730033][ T4625]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  283.736004][ T4625] RIP: 0033:0x7f2bc3f9e04a
[  283.740467][ T4625] 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
[  283.760136][ T4625] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  283.768749][ T4625] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  283.776775][ T4625] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  283.784809][ T4625] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  283.792843][ T4625] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  283.800870][ T4625] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  283.808908][ T4625]  </TASK>
[  283.817094][ T4625] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  283.831461][ T4625] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.156837][ T4626] loop1: detected capacity change from 0 to 32768
[  284.169766][ T4626] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.177372][ T4626] CPU: 1 PID: 4626 Comm: syz.1.183 Not tainted syzkaller #0
[  284.184789][ T4626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  284.194860][ T4626] Call Trace:
[  284.198154][ T4626]  <TASK>
[  284.201098][ T4626]  dump_stack_lvl+0x188/0x24e
[  284.205803][ T4626]  ? show_regs_print_info+0x12/0x12
[  284.211044][ T4626]  ? load_image+0x400/0x400
[  284.215614][ T4626]  sysfs_create_dir_ns+0x26a/0x290
[  284.220794][ T4626]  ? sysfs_warn_dup+0xa0/0xa0
[  284.225541][ T4626]  ? do_raw_spin_unlock+0x11d/0x230
[  284.230798][ T4626]  kobject_add_internal+0x61c/0xcc0
[  284.236173][ T4626]  kobject_init_and_add+0x128/0x190
[  284.241439][ T4626]  ? lockdep_softirqs_off+0x430/0x430
[  284.246883][ T4626]  ? kobject_add+0x230/0x230
[  284.251534][ T4626]  ? __init_swait_queue_head+0xa5/0x150
[  284.257158][ T4626]  gfs2_sys_fs_add+0x24f/0x4b0
[  284.262005][ T4626]  ? gfs2_recover_set+0x240/0x240
[  284.267107][ T4626]  ? snprintf+0xe5/0x140
[  284.271412][ T4626]  ? vscnprintf+0x80/0x80
[  284.275803][ T4626]  gfs2_fill_super+0x128c/0x1fb0
[  284.280804][ T4626]  ? gfs2_reconfigure+0xd30/0xd30
[  284.285895][ T4626]  ? sb_set_blocksize+0xa5/0xe0
[  284.290813][ T4626]  get_tree_bdev+0x3f1/0x610
[  284.295563][ T4626]  ? gfs2_reconfigure+0xd30/0xd30
[  284.300651][ T4626]  gfs2_get_tree+0x4d/0x1e0
[  284.305209][ T4626]  vfs_get_tree+0x88/0x270
[  284.309679][ T4626]  do_new_mount+0x24a/0xa40
[  284.314287][ T4626]  __se_sys_mount+0x2e3/0x3d0
[  284.319032][ T4626]  ? __x64_sys_mount+0xc0/0xc0
[  284.323918][ T4626]  ? lockdep_hardirqs_on+0x94/0x140
[  284.329179][ T4626]  ? __x64_sys_mount+0x1c/0xc0
[  284.333997][ T4626]  do_syscall_64+0x4c/0xa0
[  284.338531][ T4626]  ? clear_bhb_loop+0x60/0xb0
[  284.343271][ T4626]  ? clear_bhb_loop+0x60/0xb0
[  284.348021][ T4626]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  284.353968][ T4626] RIP: 0033:0x7f2bc3f9e04a
[  284.358439][ T4626] 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
[  284.378108][ T4626] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  284.386838][ T4626] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  284.394863][ T4626] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  284.402890][ T4626] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  284.410913][ T4626] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  284.418937][ T4626] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  284.426983][ T4626]  </TASK>
[  284.441309][ T4626] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  284.455718][ T4626] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  284.841021][ T4627] loop1: detected capacity change from 0 to 32768
[  284.849560][ T4627] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  284.857029][ T4627] CPU: 1 PID: 4627 Comm: syz.1.184 Not tainted syzkaller #0
[  284.864365][ T4627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  284.874470][ T4627] Call Trace:
[  284.877778][ T4627]  <TASK>
[  284.880728][ T4627]  dump_stack_lvl+0x188/0x24e
[  284.885468][ T4627]  ? show_regs_print_info+0x12/0x12
[  284.890728][ T4627]  ? load_image+0x400/0x400
[  284.895294][ T4627]  sysfs_create_dir_ns+0x26a/0x290
[  284.900463][ T4627]  ? sysfs_warn_dup+0xa0/0xa0
[  284.905200][ T4627]  ? do_raw_spin_unlock+0x11d/0x230
[  284.910452][ T4627]  kobject_add_internal+0x61c/0xcc0
[  284.915702][ T4627]  kobject_init_and_add+0x128/0x190
[  284.920948][ T4627]  ? lockdep_softirqs_off+0x430/0x430
[  284.926363][ T4627]  ? kobject_add+0x230/0x230
[  284.930993][ T4627]  ? __init_swait_queue_head+0xa5/0x150
[  284.936579][ T4627]  gfs2_sys_fs_add+0x24f/0x4b0
[  284.941384][ T4627]  ? gfs2_recover_set+0x240/0x240
[  284.946468][ T4627]  ? snprintf+0xe5/0x140
[  284.950744][ T4627]  ? vscnprintf+0x80/0x80
[  284.955113][ T4627]  gfs2_fill_super+0x128c/0x1fb0
[  284.960098][ T4627]  ? gfs2_reconfigure+0xd30/0xd30
[  284.965162][ T4627]  ? sb_set_blocksize+0xa5/0xe0
[  284.970046][ T4627]  get_tree_bdev+0x3f1/0x610
[  284.974663][ T4627]  ? gfs2_reconfigure+0xd30/0xd30
[  284.979725][ T4627]  gfs2_get_tree+0x4d/0x1e0
[  284.984264][ T4627]  vfs_get_tree+0x88/0x270
[  284.988718][ T4627]  do_new_mount+0x24a/0xa40
[  284.993258][ T4627]  __se_sys_mount+0x2e3/0x3d0
[  284.997992][ T4627]  ? __x64_sys_mount+0xc0/0xc0
[  285.002791][ T4627]  ? lockdep_hardirqs_on+0x94/0x140
[  285.008038][ T4627]  ? __x64_sys_mount+0x1c/0xc0
[  285.012831][ T4627]  do_syscall_64+0x4c/0xa0
[  285.017284][ T4627]  ? clear_bhb_loop+0x60/0xb0
[  285.021997][ T4627]  ? clear_bhb_loop+0x60/0xb0
[  285.026710][ T4627]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  285.032637][ T4627] RIP: 0033:0x7f2bc3f9e04a
[  285.037078][ T4627] 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
[  285.056718][ T4627] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.065162][ T4627] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  285.073160][ T4627] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  285.081157][ T4627] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  285.089155][ T4627] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  285.097158][ T4627] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  285.105183][ T4627]  </TASK>
[  285.116212][ T4627] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.131606][ T4627] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  285.466325][ T4628] loop1: detected capacity change from 0 to 32768
[  285.484010][ T4628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  285.492373][ T4628] CPU: 0 PID: 4628 Comm: syz.1.185 Not tainted syzkaller #0
[  285.499716][ T4628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  285.509820][ T4628] Call Trace:
[  285.513154][ T4628]  <TASK>
[  285.516132][ T4628]  dump_stack_lvl+0x188/0x24e
[  285.520890][ T4628]  ? show_regs_print_info+0x12/0x12
[  285.526154][ T4628]  ? load_image+0x400/0x400
[  285.530737][ T4628]  sysfs_create_dir_ns+0x26a/0x290
[  285.535918][ T4628]  ? sysfs_warn_dup+0xa0/0xa0
[  285.540656][ T4628]  ? do_raw_spin_unlock+0x11d/0x230
[  285.546010][ T4628]  kobject_add_internal+0x61c/0xcc0
[  285.551294][ T4628]  kobject_init_and_add+0x128/0x190
[  285.556541][ T4628]  ? lockdep_softirqs_off+0x430/0x430
[  285.561971][ T4628]  ? kobject_add+0x230/0x230
[  285.566622][ T4628]  ? __init_swait_queue_head+0xa5/0x150
[  285.572229][ T4628]  gfs2_sys_fs_add+0x24f/0x4b0
[  285.577083][ T4628]  ? gfs2_recover_set+0x240/0x240
[  285.582183][ T4628]  ? snprintf+0xe5/0x140
[  285.586480][ T4628]  ? vscnprintf+0x80/0x80
[  285.590876][ T4628]  gfs2_fill_super+0x128c/0x1fb0
[  285.595893][ T4628]  ? gfs2_reconfigure+0xd30/0xd30
[  285.600985][ T4628]  ? sb_set_blocksize+0xa5/0xe0
[  285.605900][ T4628]  get_tree_bdev+0x3f1/0x610
[  285.610576][ T4628]  ? gfs2_reconfigure+0xd30/0xd30
[  285.615679][ T4628]  gfs2_get_tree+0x4d/0x1e0
[  285.620245][ T4628]  vfs_get_tree+0x88/0x270
[  285.624715][ T4628]  do_new_mount+0x24a/0xa40
[  285.629287][ T4628]  __se_sys_mount+0x2e3/0x3d0
[  285.634020][ T4628]  ? __x64_sys_mount+0xc0/0xc0
[  285.638836][ T4628]  ? lockdep_hardirqs_on+0x94/0x140
[  285.644096][ T4628]  ? __x64_sys_mount+0x1c/0xc0
[  285.648924][ T4628]  do_syscall_64+0x4c/0xa0
[  285.653491][ T4628]  ? clear_bhb_loop+0x60/0xb0
[  285.658228][ T4628]  ? clear_bhb_loop+0x60/0xb0
[  285.662967][ T4628]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  285.669006][ T4628] RIP: 0033:0x7f2bc3f9e04a
[  285.673468][ T4628] 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
[  285.693142][ T4628] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  285.701622][ T4628] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  285.709650][ T4628] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  285.717672][ T4628] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  285.725705][ T4628] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  285.733731][ T4628] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  285.741773][ T4628]  </TASK>
[  285.746886][ T4628] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  285.760288][ T4628] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/26 07:41:55 executed programs: 171
[  286.084331][ T4629] loop1: detected capacity change from 0 to 32768
[  286.092701][ T4629] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.108959][ T4629] CPU: 0 PID: 4629 Comm: syz.1.186 Not tainted syzkaller #0
[  286.116329][ T4629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  286.126524][ T4629] Call Trace:
[  286.129846][ T4629]  <TASK>
[  286.132825][ T4629]  dump_stack_lvl+0x188/0x24e
[  286.137567][ T4629]  ? show_regs_print_info+0x12/0x12
[  286.142840][ T4629]  ? load_image+0x400/0x400
[  286.147422][ T4629]  sysfs_create_dir_ns+0x26a/0x290
[  286.152591][ T4629]  ? sysfs_warn_dup+0xa0/0xa0
[  286.157336][ T4629]  ? do_raw_spin_unlock+0x11d/0x230
[  286.162586][ T4629]  kobject_add_internal+0x61c/0xcc0
[  286.167844][ T4629]  kobject_init_and_add+0x128/0x190
[  286.173103][ T4629]  ? lockdep_softirqs_off+0x430/0x430
[  286.178538][ T4629]  ? kobject_add+0x230/0x230
[  286.183195][ T4629]  ? __init_swait_queue_head+0xa5/0x150
[  286.188903][ T4629]  gfs2_sys_fs_add+0x24f/0x4b0
[  286.193733][ T4629]  ? gfs2_recover_set+0x240/0x240
[  286.198825][ T4629]  ? snprintf+0xe5/0x140
[  286.203126][ T4629]  ? vscnprintf+0x80/0x80
[  286.207521][ T4629]  gfs2_fill_super+0x128c/0x1fb0
[  286.212526][ T4629]  ? gfs2_reconfigure+0xd30/0xd30
[  286.217608][ T4629]  ? sb_set_blocksize+0xa5/0xe0
[  286.222533][ T4629]  get_tree_bdev+0x3f1/0x610
[  286.227189][ T4629]  ? gfs2_reconfigure+0xd30/0xd30
[  286.232271][ T4629]  gfs2_get_tree+0x4d/0x1e0
[  286.236835][ T4629]  vfs_get_tree+0x88/0x270
[  286.241321][ T4629]  do_new_mount+0x24a/0xa40
[  286.245895][ T4629]  __se_sys_mount+0x2e3/0x3d0
[  286.250637][ T4629]  ? __x64_sys_mount+0xc0/0xc0
[  286.255457][ T4629]  ? lockdep_hardirqs_on+0x94/0x140
[  286.260712][ T4629]  ? __x64_sys_mount+0x1c/0xc0
[  286.265542][ T4629]  do_syscall_64+0x4c/0xa0
[  286.270023][ T4629]  ? clear_bhb_loop+0x60/0xb0
[  286.274757][ T4629]  ? clear_bhb_loop+0x60/0xb0
[  286.279494][ T4629]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  286.285439][ T4629] RIP: 0033:0x7f2bc3f9e04a
[  286.289906][ T4629] 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
[  286.309570][ T4629] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.318047][ T4629] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  286.326073][ T4629] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  286.334104][ T4629] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  286.342145][ T4629] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  286.350215][ T4629] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  286.358347][ T4629]  </TASK>
[  286.362314][ T4629] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.375525][ T4629] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  286.704849][ T4630] loop1: detected capacity change from 0 to 32768
[  286.719391][ T4630] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  286.726838][ T4630] CPU: 0 PID: 4630 Comm: syz.1.187 Not tainted syzkaller #0
[  286.734178][ T4630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  286.744264][ T4630] Call Trace:
[  286.747597][ T4630]  <TASK>
[  286.750575][ T4630]  dump_stack_lvl+0x188/0x24e
[  286.755294][ T4630]  ? show_regs_print_info+0x12/0x12
[  286.760555][ T4630]  ? load_image+0x400/0x400
[  286.765105][ T4630]  sysfs_create_dir_ns+0x26a/0x290
[  286.770260][ T4630]  ? sysfs_warn_dup+0xa0/0xa0
[  286.774983][ T4630]  ? do_raw_spin_unlock+0x11d/0x230
[  286.780215][ T4630]  kobject_add_internal+0x61c/0xcc0
[  286.785452][ T4630]  kobject_init_and_add+0x128/0x190
[  286.790679][ T4630]  ? lockdep_softirqs_off+0x430/0x430
[  286.796096][ T4630]  ? kobject_add+0x230/0x230
[  286.800723][ T4630]  ? __init_swait_queue_head+0xa5/0x150
[  286.806313][ T4630]  gfs2_sys_fs_add+0x24f/0x4b0
[  286.811120][ T4630]  ? gfs2_recover_set+0x240/0x240
[  286.816188][ T4630]  ? snprintf+0xe5/0x140
[  286.820467][ T4630]  ? vscnprintf+0x80/0x80
[  286.824836][ T4630]  gfs2_fill_super+0x128c/0x1fb0
[  286.829819][ T4630]  ? gfs2_reconfigure+0xd30/0xd30
[  286.834893][ T4630]  ? sb_set_blocksize+0xa5/0xe0
[  286.839782][ T4630]  get_tree_bdev+0x3f1/0x610
[  286.844405][ T4630]  ? gfs2_reconfigure+0xd30/0xd30
[  286.849470][ T4630]  gfs2_get_tree+0x4d/0x1e0
[  286.854021][ T4630]  vfs_get_tree+0x88/0x270
[  286.858556][ T4630]  do_new_mount+0x24a/0xa40
[  286.863114][ T4630]  __se_sys_mount+0x2e3/0x3d0
[  286.867865][ T4630]  ? __x64_sys_mount+0xc0/0xc0
[  286.872668][ T4630]  ? lockdep_hardirqs_on+0x94/0x140
[  286.877903][ T4630]  ? __x64_sys_mount+0x1c/0xc0
[  286.882697][ T4630]  do_syscall_64+0x4c/0xa0
[  286.887173][ T4630]  ? clear_bhb_loop+0x60/0xb0
[  286.891932][ T4630]  ? clear_bhb_loop+0x60/0xb0
[  286.896658][ T4630]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  286.902677][ T4630] RIP: 0033:0x7f2bc3f9e04a
[  286.907152][ T4630] 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
[  286.926801][ T4630] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  286.935259][ T4630] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  286.943259][ T4630] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  286.951259][ T4630] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  286.959343][ T4630] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  286.967346][ T4630] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  286.975363][ T4630]  </TASK>
[  286.981830][ T4630] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  286.998257][ T4630] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.337841][ T4631] loop1: detected capacity change from 0 to 32768
[  287.352732][ T4631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.360439][ T4631] CPU: 1 PID: 4631 Comm: syz.1.188 Not tainted syzkaller #0
[  287.367768][ T4631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  287.377864][ T4631] Call Trace:
[  287.381189][ T4631]  <TASK>
[  287.384171][ T4631]  dump_stack_lvl+0x188/0x24e
[  287.388955][ T4631]  ? show_regs_print_info+0x12/0x12
[  287.394219][ T4631]  ? load_image+0x400/0x400
[  287.398797][ T4631]  sysfs_create_dir_ns+0x26a/0x290
[  287.403987][ T4631]  ? sysfs_warn_dup+0xa0/0xa0
[  287.408734][ T4631]  ? do_raw_spin_unlock+0x11d/0x230
[  287.413990][ T4631]  kobject_add_internal+0x61c/0xcc0
[  287.419336][ T4631]  kobject_init_and_add+0x128/0x190
[  287.424584][ T4631]  ? lockdep_softirqs_off+0x430/0x430
[  287.429999][ T4631]  ? kobject_add+0x230/0x230
[  287.434632][ T4631]  ? __init_swait_queue_head+0xa5/0x150
[  287.440221][ T4631]  gfs2_sys_fs_add+0x24f/0x4b0
[  287.445030][ T4631]  ? gfs2_recover_set+0x240/0x240
[  287.450191][ T4631]  ? snprintf+0xe5/0x140
[  287.454468][ T4631]  ? vscnprintf+0x80/0x80
[  287.458857][ T4631]  gfs2_fill_super+0x128c/0x1fb0
[  287.463873][ T4631]  ? gfs2_reconfigure+0xd30/0xd30
[  287.468954][ T4631]  ? sb_set_blocksize+0xa5/0xe0
[  287.473847][ T4631]  get_tree_bdev+0x3f1/0x610
[  287.478473][ T4631]  ? gfs2_reconfigure+0xd30/0xd30
[  287.483531][ T4631]  gfs2_get_tree+0x4d/0x1e0
[  287.488076][ T4631]  vfs_get_tree+0x88/0x270
[  287.492536][ T4631]  do_new_mount+0x24a/0xa40
[  287.497077][ T4631]  __se_sys_mount+0x2e3/0x3d0
[  287.501790][ T4631]  ? __x64_sys_mount+0xc0/0xc0
[  287.506592][ T4631]  ? lockdep_hardirqs_on+0x94/0x140
[  287.511823][ T4631]  ? __x64_sys_mount+0x1c/0xc0
[  287.516630][ T4631]  do_syscall_64+0x4c/0xa0
[  287.521173][ T4631]  ? clear_bhb_loop+0x60/0xb0
[  287.525896][ T4631]  ? clear_bhb_loop+0x60/0xb0
[  287.530700][ T4631]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  287.536623][ T4631] RIP: 0033:0x7f2bc3f9e04a
[  287.541083][ T4631] 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
[  287.560715][ T4631] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  287.569162][ T4631] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  287.577160][ T4631] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  287.585157][ T4631] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  287.593159][ T4631] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  287.601257][ T4631] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  287.609283][ T4631]  </TASK>
[  287.620090][ T4631] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  287.633949][ T4631] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  287.972892][ T4632] loop1: detected capacity change from 0 to 32768
[  287.991592][ T4632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  287.999199][ T4632] CPU: 0 PID: 4632 Comm: syz.1.189 Not tainted syzkaller #0
[  288.006537][ T4632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  288.016641][ T4632] Call Trace:
[  288.019964][ T4632]  <TASK>
[  288.022942][ T4632]  dump_stack_lvl+0x188/0x24e
[  288.027691][ T4632]  ? show_regs_print_info+0x12/0x12
[  288.032963][ T4632]  ? load_image+0x400/0x400
[  288.037574][ T4632]  sysfs_create_dir_ns+0x26a/0x290
[  288.042760][ T4632]  ? sysfs_warn_dup+0xa0/0xa0
[  288.047529][ T4632]  ? do_raw_spin_unlock+0x11d/0x230
[  288.052787][ T4632]  kobject_add_internal+0x61c/0xcc0
[  288.058053][ T4632]  kobject_init_and_add+0x128/0x190
[  288.063299][ T4632]  ? lockdep_softirqs_off+0x430/0x430
[  288.068738][ T4632]  ? kobject_add+0x230/0x230
[  288.073380][ T4632]  ? __init_swait_queue_head+0xa5/0x150
[  288.078997][ T4632]  gfs2_sys_fs_add+0x24f/0x4b0
[  288.083828][ T4632]  ? gfs2_recover_set+0x240/0x240
[  288.088920][ T4632]  ? snprintf+0xe5/0x140
[  288.093221][ T4632]  ? vscnprintf+0x80/0x80
[  288.097617][ T4632]  gfs2_fill_super+0x128c/0x1fb0
[  288.102620][ T4632]  ? gfs2_reconfigure+0xd30/0xd30
[  288.107711][ T4632]  ? sb_set_blocksize+0xa5/0xe0
[  288.112624][ T4632]  get_tree_bdev+0x3f1/0x610
[  288.117270][ T4632]  ? gfs2_reconfigure+0xd30/0xd30
[  288.122348][ T4632]  gfs2_get_tree+0x4d/0x1e0
[  288.126904][ T4632]  vfs_get_tree+0x88/0x270
[  288.131379][ T4632]  do_new_mount+0x24a/0xa40
[  288.135957][ T4632]  __se_sys_mount+0x2e3/0x3d0
[  288.140744][ T4632]  ? __x64_sys_mount+0xc0/0xc0
[  288.145562][ T4632]  ? lockdep_hardirqs_on+0x94/0x140
[  288.150807][ T4632]  ? __x64_sys_mount+0x1c/0xc0
[  288.155618][ T4632]  do_syscall_64+0x4c/0xa0
[  288.160109][ T4632]  ? clear_bhb_loop+0x60/0xb0
[  288.164839][ T4632]  ? clear_bhb_loop+0x60/0xb0
[  288.169575][ T4632]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  288.175526][ T4632] RIP: 0033:0x7f2bc3f9e04a
[  288.179995][ T4632] 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
[  288.199652][ T4632] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.208115][ T4632] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  288.216133][ T4632] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  288.224154][ T4632] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  288.232178][ T4632] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  288.240193][ T4632] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  288.248231][ T4632]  </TASK>
[  288.252544][ T4632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.265809][ T4632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  288.591241][ T4633] loop1: detected capacity change from 0 to 32768
[  288.608283][ T4633] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  288.615881][ T4633] CPU: 0 PID: 4633 Comm: syz.1.190 Not tainted syzkaller #0
[  288.623215][ T4633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  288.633308][ T4633] Call Trace:
[  288.636613][ T4633]  <TASK>
[  288.639571][ T4633]  dump_stack_lvl+0x188/0x24e
[  288.644288][ T4633]  ? show_regs_print_info+0x12/0x12
[  288.649518][ T4633]  ? load_image+0x400/0x400
[  288.654064][ T4633]  sysfs_create_dir_ns+0x26a/0x290
[  288.659239][ T4633]  ? sysfs_warn_dup+0xa0/0xa0
[  288.663951][ T4633]  ? do_raw_spin_unlock+0x11d/0x230
[  288.669182][ T4633]  kobject_add_internal+0x61c/0xcc0
[  288.674424][ T4633]  kobject_init_and_add+0x128/0x190
[  288.679655][ T4633]  ? lockdep_softirqs_off+0x430/0x430
[  288.685165][ T4633]  ? kobject_add+0x230/0x230
[  288.689798][ T4633]  ? __init_swait_queue_head+0xa5/0x150
[  288.695395][ T4633]  gfs2_sys_fs_add+0x24f/0x4b0
[  288.700208][ T4633]  ? gfs2_recover_set+0x240/0x240
[  288.705277][ T4633]  ? snprintf+0xe5/0x140
[  288.709565][ T4633]  ? vscnprintf+0x80/0x80
[  288.713935][ T4633]  gfs2_fill_super+0x128c/0x1fb0
[  288.718928][ T4633]  ? gfs2_reconfigure+0xd30/0xd30
[  288.723989][ T4633]  ? sb_set_blocksize+0xa5/0xe0
[  288.728885][ T4633]  get_tree_bdev+0x3f1/0x610
[  288.733525][ T4633]  ? gfs2_reconfigure+0xd30/0xd30
[  288.738575][ T4633]  gfs2_get_tree+0x4d/0x1e0
[  288.743108][ T4633]  vfs_get_tree+0x88/0x270
[  288.747566][ T4633]  do_new_mount+0x24a/0xa40
[  288.752107][ T4633]  __se_sys_mount+0x2e3/0x3d0
[  288.756814][ T4633]  ? __x64_sys_mount+0xc0/0xc0
[  288.761607][ T4633]  ? lockdep_hardirqs_on+0x94/0x140
[  288.766829][ T4633]  ? __x64_sys_mount+0x1c/0xc0
[  288.771626][ T4633]  do_syscall_64+0x4c/0xa0
[  288.776080][ T4633]  ? clear_bhb_loop+0x60/0xb0
[  288.780790][ T4633]  ? clear_bhb_loop+0x60/0xb0
[  288.785500][ T4633]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  288.791422][ T4633] RIP: 0033:0x7f2bc3f9e04a
[  288.795862][ T4633] 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
[  288.815517][ T4633] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  288.824055][ T4633] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  288.832056][ T4633] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  288.840069][ T4633] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  288.848078][ T4633] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  288.856087][ T4633] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  288.864108][ T4633]  </TASK>
[  288.884226][ T4633] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  288.900254][ T4633] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.241688][ T4634] loop1: detected capacity change from 0 to 32768
[  289.261311][ T4634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.268936][ T4634] CPU: 1 PID: 4634 Comm: syz.1.191 Not tainted syzkaller #0
[  289.276365][ T4634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  289.286467][ T4634] Call Trace:
[  289.289798][ T4634]  <TASK>
[  289.292775][ T4634]  dump_stack_lvl+0x188/0x24e
[  289.297525][ T4634]  ? show_regs_print_info+0x12/0x12
[  289.302789][ T4634]  ? load_image+0x400/0x400
[  289.307367][ T4634]  sysfs_create_dir_ns+0x26a/0x290
[  289.312551][ T4634]  ? sysfs_warn_dup+0xa0/0xa0
[  289.317303][ T4634]  ? do_raw_spin_unlock+0x11d/0x230
[  289.322570][ T4634]  kobject_add_internal+0x61c/0xcc0
[  289.327843][ T4634]  kobject_init_and_add+0x128/0x190
[  289.333099][ T4634]  ? lockdep_softirqs_off+0x430/0x430
[  289.338545][ T4634]  ? kobject_add+0x230/0x230
[  289.343202][ T4634]  ? __init_swait_queue_head+0xa5/0x150
[  289.348840][ T4634]  gfs2_sys_fs_add+0x24f/0x4b0
[  289.353672][ T4634]  ? gfs2_recover_set+0x240/0x240
[  289.358766][ T4634]  ? snprintf+0xe5/0x140
[  289.363067][ T4634]  ? vscnprintf+0x80/0x80
[  289.367461][ T4634]  gfs2_fill_super+0x128c/0x1fb0
[  289.372476][ T4634]  ? gfs2_reconfigure+0xd30/0xd30
[  289.377563][ T4634]  ? sb_set_blocksize+0xa5/0xe0
[  289.382473][ T4634]  get_tree_bdev+0x3f1/0x610
[  289.387099][ T4634]  ? gfs2_reconfigure+0xd30/0xd30
[  289.392159][ T4634]  gfs2_get_tree+0x4d/0x1e0
[  289.396699][ T4634]  vfs_get_tree+0x88/0x270
[  289.401159][ T4634]  do_new_mount+0x24a/0xa40
[  289.405711][ T4634]  __se_sys_mount+0x2e3/0x3d0
[  289.410465][ T4634]  ? __x64_sys_mount+0xc0/0xc0
[  289.415262][ T4634]  ? lockdep_hardirqs_on+0x94/0x140
[  289.420491][ T4634]  ? __x64_sys_mount+0x1c/0xc0
[  289.425295][ T4634]  do_syscall_64+0x4c/0xa0
[  289.429758][ T4634]  ? clear_bhb_loop+0x60/0xb0
[  289.434512][ T4634]  ? clear_bhb_loop+0x60/0xb0
[  289.439254][ T4634]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  289.445208][ T4634] RIP: 0033:0x7f2bc3f9e04a
[  289.449663][ T4634] 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
[  289.469390][ T4634] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  289.477945][ T4634] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  289.485957][ T4634] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  289.494090][ T4634] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  289.502095][ T4634] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  289.510162][ T4634] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  289.518193][ T4634]  </TASK>
[  289.524334][ T4634] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  289.538007][ T4634] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  289.867146][ T4635] loop1: detected capacity change from 0 to 32768
[  289.885615][ T4635] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  289.893203][ T4635] CPU: 1 PID: 4635 Comm: syz.1.192 Not tainted syzkaller #0
[  289.900633][ T4635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  289.910744][ T4635] Call Trace:
[  289.914074][ T4635]  <TASK>
[  289.917046][ T4635]  dump_stack_lvl+0x188/0x24e
[  289.921815][ T4635]  ? show_regs_print_info+0x12/0x12
[  289.927081][ T4635]  ? load_image+0x400/0x400
[  289.931740][ T4635]  sysfs_create_dir_ns+0x26a/0x290
[  289.936925][ T4635]  ? sysfs_warn_dup+0xa0/0xa0
[  289.941712][ T4635]  ? do_raw_spin_unlock+0x11d/0x230
[  289.946975][ T4635]  kobject_add_internal+0x61c/0xcc0
[  289.952230][ T4635]  kobject_init_and_add+0x128/0x190
[  289.957470][ T4635]  ? lockdep_softirqs_off+0x430/0x430
[  289.963332][ T4635]  ? kobject_add+0x230/0x230
[  289.967962][ T4635]  ? __init_swait_queue_head+0xa5/0x150
[  289.973546][ T4635]  gfs2_sys_fs_add+0x24f/0x4b0
[  289.978353][ T4635]  ? gfs2_recover_set+0x240/0x240
[  289.983421][ T4635]  ? snprintf+0xe5/0x140
[  289.987694][ T4635]  ? vscnprintf+0x80/0x80
[  289.992071][ T4635]  gfs2_fill_super+0x128c/0x1fb0
[  289.997050][ T4635]  ? gfs2_reconfigure+0xd30/0xd30
[  290.002112][ T4635]  ? sb_set_blocksize+0xa5/0xe0
[  290.007026][ T4635]  get_tree_bdev+0x3f1/0x610
[  290.011739][ T4635]  ? gfs2_reconfigure+0xd30/0xd30
[  290.016804][ T4635]  gfs2_get_tree+0x4d/0x1e0
[  290.021345][ T4635]  vfs_get_tree+0x88/0x270
[  290.025794][ T4635]  do_new_mount+0x24a/0xa40
[  290.030339][ T4635]  __se_sys_mount+0x2e3/0x3d0
[  290.035079][ T4635]  ? __x64_sys_mount+0xc0/0xc0
[  290.039880][ T4635]  ? lockdep_hardirqs_on+0x94/0x140
[  290.045109][ T4635]  ? __x64_sys_mount+0x1c/0xc0
[  290.049906][ T4635]  do_syscall_64+0x4c/0xa0
[  290.054361][ T4635]  ? clear_bhb_loop+0x60/0xb0
[  290.059073][ T4635]  ? clear_bhb_loop+0x60/0xb0
[  290.063787][ T4635]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  290.069716][ T4635] RIP: 0033:0x7f2bc3f9e04a
[  290.074160][ T4635] 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
[  290.093879][ T4635] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.102319][ T4635] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  290.110313][ T4635] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  290.118314][ T4635] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  290.126321][ T4635] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  290.134319][ T4635] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  290.142330][ T4635]  </TASK>
[  290.156489][ T4635] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  290.170760][ T4635] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  290.510533][ T4636] loop1: detected capacity change from 0 to 32768
[  290.531581][ T4636] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  290.539246][ T4636] CPU: 1 PID: 4636 Comm: syz.1.193 Not tainted syzkaller #0
[  290.546580][ T4636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  290.556662][ T4636] Call Trace:
[  290.559991][ T4636]  <TASK>
[  290.562967][ T4636]  dump_stack_lvl+0x188/0x24e
[  290.567722][ T4636]  ? show_regs_print_info+0x12/0x12
[  290.572993][ T4636]  ? load_image+0x400/0x400
[  290.577579][ T4636]  sysfs_create_dir_ns+0x26a/0x290
[  290.582758][ T4636]  ? sysfs_warn_dup+0xa0/0xa0
[  290.587511][ T4636]  ? do_raw_spin_unlock+0x11d/0x230
[  290.592778][ T4636]  kobject_add_internal+0x61c/0xcc0
[  290.598053][ T4636]  kobject_init_and_add+0x128/0x190
[  290.603341][ T4636]  ? lockdep_softirqs_off+0x430/0x430
[  290.608870][ T4636]  ? kobject_add+0x230/0x230
[  290.613529][ T4636]  ? __init_swait_queue_head+0xa5/0x150
[  290.619144][ T4636]  gfs2_sys_fs_add+0x24f/0x4b0
[  290.623973][ T4636]  ? gfs2_recover_set+0x240/0x240
[  290.629066][ T4636]  ? snprintf+0xe5/0x140
[  290.633454][ T4636]  ? vscnprintf+0x80/0x80
[  290.637847][ T4636]  gfs2_fill_super+0x128c/0x1fb0
[  290.642853][ T4636]  ? gfs2_reconfigure+0xd30/0xd30
[  290.647952][ T4636]  ? sb_set_blocksize+0xa5/0xe0
[  290.652873][ T4636]  get_tree_bdev+0x3f1/0x610
[  290.657573][ T4636]  ? gfs2_reconfigure+0xd30/0xd30
[  290.662694][ T4636]  gfs2_get_tree+0x4d/0x1e0
[  290.667261][ T4636]  vfs_get_tree+0x88/0x270
[  290.671735][ T4636]  do_new_mount+0x24a/0xa40
[  290.676301][ T4636]  __se_sys_mount+0x2e3/0x3d0
[  290.681039][ T4636]  ? __x64_sys_mount+0xc0/0xc0
[  290.685859][ T4636]  ? lockdep_hardirqs_on+0x94/0x140
[  290.691112][ T4636]  ? __x64_sys_mount+0x1c/0xc0
[  290.695931][ T4636]  do_syscall_64+0x4c/0xa0
[  290.700439][ T4636]  ? clear_bhb_loop+0x60/0xb0
[  290.705166][ T4636]  ? clear_bhb_loop+0x60/0xb0
[  290.709907][ T4636]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  290.715944][ T4636] RIP: 0033:0x7f2bc3f9e04a
[  290.720403][ T4636] 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
[  290.740056][ T4636] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  290.748525][ T4636] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  290.756556][ T4636] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  290.764575][ T4636] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  290.772596][ T4636] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  290.780612][ T4636] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  290.788644][ T4636]  </TASK>
[  290.797146][ T4636] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/04/26 07:42:00 executed programs: 179
[  290.811967][ T4636] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.150182][ T4637] loop1: detected capacity change from 0 to 32768
[  291.172482][ T4637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.180101][ T4637] CPU: 1 PID: 4637 Comm: syz.1.194 Not tainted syzkaller #0
[  291.187433][ T4637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  291.197536][ T4637] Call Trace:
[  291.200864][ T4637]  <TASK>
[  291.203842][ T4637]  dump_stack_lvl+0x188/0x24e
[  291.208598][ T4637]  ? show_regs_print_info+0x12/0x12
[  291.213858][ T4637]  ? load_image+0x400/0x400
[  291.218435][ T4637]  sysfs_create_dir_ns+0x26a/0x290
[  291.223611][ T4637]  ? sysfs_warn_dup+0xa0/0xa0
[  291.228350][ T4637]  ? do_raw_spin_unlock+0x11d/0x230
[  291.233695][ T4637]  kobject_add_internal+0x61c/0xcc0
[  291.238955][ T4637]  kobject_init_and_add+0x128/0x190
[  291.244203][ T4637]  ? lockdep_softirqs_off+0x430/0x430
[  291.249642][ T4637]  ? kobject_add+0x230/0x230
[  291.254297][ T4637]  ? __init_swait_queue_head+0xa5/0x150
[  291.259905][ T4637]  gfs2_sys_fs_add+0x24f/0x4b0
[  291.264741][ T4637]  ? gfs2_recover_set+0x240/0x240
[  291.269836][ T4637]  ? snprintf+0xe5/0x140
[  291.274137][ T4637]  ? vscnprintf+0x80/0x80
[  291.278531][ T4637]  gfs2_fill_super+0x128c/0x1fb0
[  291.283538][ T4637]  ? gfs2_reconfigure+0xd30/0xd30
[  291.288633][ T4637]  ? sb_set_blocksize+0xa5/0xe0
[  291.293543][ T4637]  get_tree_bdev+0x3f1/0x610
[  291.298189][ T4637]  ? gfs2_reconfigure+0xd30/0xd30
[  291.303269][ T4637]  gfs2_get_tree+0x4d/0x1e0
[  291.307842][ T4637]  vfs_get_tree+0x88/0x270
[  291.312316][ T4637]  do_new_mount+0x24a/0xa40
[  291.316881][ T4637]  __se_sys_mount+0x2e3/0x3d0
[  291.321632][ T4637]  ? __x64_sys_mount+0xc0/0xc0
[  291.326457][ T4637]  ? lockdep_hardirqs_on+0x94/0x140
[  291.331705][ T4637]  ? __x64_sys_mount+0x1c/0xc0
[  291.336551][ T4637]  do_syscall_64+0x4c/0xa0
[  291.341025][ T4637]  ? clear_bhb_loop+0x60/0xb0
[  291.345758][ T4637]  ? clear_bhb_loop+0x60/0xb0
[  291.350502][ T4637]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  291.356445][ T4637] RIP: 0033:0x7f2bc3f9e04a
[  291.360906][ T4637] 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
[  291.380602][ T4637] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  291.389068][ T4637] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  291.397087][ T4637] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  291.405113][ T4637] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  291.413126][ T4637] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  291.421142][ T4637] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  291.429181][ T4637]  </TASK>
[  291.444994][ T4637] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  291.458568][ T4637] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  291.801237][ T4638] loop1: detected capacity change from 0 to 32768
[  291.818102][ T4638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  291.826463][ T4638] CPU: 1 PID: 4638 Comm: syz.1.195 Not tainted syzkaller #0
[  291.833827][ T4638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  291.843928][ T4638] Call Trace:
[  291.847253][ T4638]  <TASK>
[  291.850225][ T4638]  dump_stack_lvl+0x188/0x24e
[  291.854974][ T4638]  ? show_regs_print_info+0x12/0x12
[  291.860241][ T4638]  ? load_image+0x400/0x400
[  291.864818][ T4638]  sysfs_create_dir_ns+0x26a/0x290
[  291.869994][ T4638]  ? sysfs_warn_dup+0xa0/0xa0
[  291.874729][ T4638]  ? do_raw_spin_unlock+0x11d/0x230
[  291.880007][ T4638]  kobject_add_internal+0x61c/0xcc0
[  291.885276][ T4638]  kobject_init_and_add+0x128/0x190
[  291.890530][ T4638]  ? lockdep_softirqs_off+0x430/0x430
[  291.895976][ T4638]  ? kobject_add+0x230/0x230
[  291.900632][ T4638]  ? __init_swait_queue_head+0xa5/0x150
[  291.906216][ T4638]  gfs2_sys_fs_add+0x24f/0x4b0
[  291.911028][ T4638]  ? gfs2_recover_set+0x240/0x240
[  291.916091][ T4638]  ? snprintf+0xe5/0x140
[  291.920364][ T4638]  ? vscnprintf+0x80/0x80
[  291.924731][ T4638]  gfs2_fill_super+0x128c/0x1fb0
[  291.929711][ T4638]  ? gfs2_reconfigure+0xd30/0xd30
[  291.934779][ T4638]  ? sb_set_blocksize+0xa5/0xe0
[  291.939669][ T4638]  get_tree_bdev+0x3f1/0x610
[  291.944290][ T4638]  ? gfs2_reconfigure+0xd30/0xd30
[  291.949345][ T4638]  gfs2_get_tree+0x4d/0x1e0
[  291.953878][ T4638]  vfs_get_tree+0x88/0x270
[  291.958323][ T4638]  do_new_mount+0x24a/0xa40
[  291.962887][ T4638]  __se_sys_mount+0x2e3/0x3d0
[  291.967598][ T4638]  ? __x64_sys_mount+0xc0/0xc0
[  291.972413][ T4638]  ? lockdep_hardirqs_on+0x94/0x140
[  291.977638][ T4638]  ? __x64_sys_mount+0x1c/0xc0
[  291.982439][ T4638]  do_syscall_64+0x4c/0xa0
[  291.986894][ T4638]  ? clear_bhb_loop+0x60/0xb0
[  291.991600][ T4638]  ? clear_bhb_loop+0x60/0xb0
[  291.996314][ T4638]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  292.002243][ T4638] RIP: 0033:0x7f2bc3f9e04a
[  292.006687][ T4638] 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
[  292.026324][ T4638] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.034782][ T4638] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  292.042787][ T4638] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  292.050789][ T4638] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  292.058787][ T4638] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  292.066878][ T4638] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  292.074888][ T4638]  </TASK>
[  292.084353][ T4638] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.097737][ T4638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  292.434099][ T4639] loop1: detected capacity change from 0 to 32768
[  292.450532][ T4639] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  292.457972][ T4639] CPU: 1 PID: 4639 Comm: syz.1.196 Not tainted syzkaller #0
[  292.465266][ T4639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  292.475389][ T4639] Call Trace:
[  292.478732][ T4639]  <TASK>
[  292.481702][ T4639]  dump_stack_lvl+0x188/0x24e
[  292.486443][ T4639]  ? show_regs_print_info+0x12/0x12
[  292.491716][ T4639]  ? load_image+0x400/0x400
[  292.496288][ T4639]  sysfs_create_dir_ns+0x26a/0x290
[  292.501502][ T4639]  ? sysfs_warn_dup+0xa0/0xa0
[  292.506245][ T4639]  ? do_raw_spin_unlock+0x11d/0x230
[  292.511502][ T4639]  kobject_add_internal+0x61c/0xcc0
[  292.516765][ T4639]  kobject_init_and_add+0x128/0x190
[  292.522021][ T4639]  ? lockdep_softirqs_off+0x430/0x430
[  292.527555][ T4639]  ? kobject_add+0x230/0x230
[  292.532215][ T4639]  ? __init_swait_queue_head+0xa5/0x150
[  292.537831][ T4639]  gfs2_sys_fs_add+0x24f/0x4b0
[  292.542670][ T4639]  ? gfs2_recover_set+0x240/0x240
[  292.547763][ T4639]  ? snprintf+0xe5/0x140
[  292.552064][ T4639]  ? vscnprintf+0x80/0x80
[  292.556450][ T4639]  gfs2_fill_super+0x128c/0x1fb0
[  292.561433][ T4639]  ? gfs2_reconfigure+0xd30/0xd30
[  292.566530][ T4639]  ? sb_set_blocksize+0xa5/0xe0
[  292.571419][ T4639]  get_tree_bdev+0x3f1/0x610
[  292.576042][ T4639]  ? gfs2_reconfigure+0xd30/0xd30
[  292.581099][ T4639]  gfs2_get_tree+0x4d/0x1e0
[  292.585629][ T4639]  vfs_get_tree+0x88/0x270
[  292.590074][ T4639]  do_new_mount+0x24a/0xa40
[  292.594621][ T4639]  __se_sys_mount+0x2e3/0x3d0
[  292.599349][ T4639]  ? __x64_sys_mount+0xc0/0xc0
[  292.604165][ T4639]  ? lockdep_hardirqs_on+0x94/0x140
[  292.609397][ T4639]  ? __x64_sys_mount+0x1c/0xc0
[  292.614196][ T4639]  do_syscall_64+0x4c/0xa0
[  292.618652][ T4639]  ? clear_bhb_loop+0x60/0xb0
[  292.623364][ T4639]  ? clear_bhb_loop+0x60/0xb0
[  292.628098][ T4639]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  292.634029][ T4639] RIP: 0033:0x7f2bc3f9e04a
[  292.638473][ T4639] 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
[  292.658111][ T4639] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  292.666554][ T4639] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  292.674554][ T4639] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  292.682560][ T4639] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  292.690559][ T4639] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  292.698558][ T4639] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  292.706568][ T4639]  </TASK>
[  292.715354][ T4639] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  292.731713][ T4639] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.070783][ T4640] loop1: detected capacity change from 0 to 32768
[  293.092369][ T4640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.100094][ T4640] CPU: 0 PID: 4640 Comm: syz.1.197 Not tainted syzkaller #0
[  293.107431][ T4640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  293.117537][ T4640] Call Trace:
[  293.120864][ T4640]  <TASK>
[  293.123838][ T4640]  dump_stack_lvl+0x188/0x24e
[  293.128585][ T4640]  ? show_regs_print_info+0x12/0x12
[  293.133865][ T4640]  ? load_image+0x400/0x400
[  293.138442][ T4640]  sysfs_create_dir_ns+0x26a/0x290
[  293.143612][ T4640]  ? sysfs_warn_dup+0xa0/0xa0
[  293.148349][ T4640]  ? do_raw_spin_unlock+0x11d/0x230
[  293.153604][ T4640]  kobject_add_internal+0x61c/0xcc0
[  293.158876][ T4640]  kobject_init_and_add+0x128/0x190
[  293.164132][ T4640]  ? lockdep_softirqs_off+0x430/0x430
[  293.169622][ T4640]  ? kobject_add+0x230/0x230
[  293.174306][ T4640]  ? __init_swait_queue_head+0xa5/0x150
[  293.179967][ T4640]  gfs2_sys_fs_add+0x24f/0x4b0
[  293.184821][ T4640]  ? gfs2_recover_set+0x240/0x240
[  293.189905][ T4640]  ? snprintf+0xe5/0x140
[  293.194244][ T4640]  ? vscnprintf+0x80/0x80
[  293.198648][ T4640]  gfs2_fill_super+0x128c/0x1fb0
[  293.203746][ T4640]  ? gfs2_reconfigure+0xd30/0xd30
[  293.208840][ T4640]  ? sb_set_blocksize+0xa5/0xe0
[  293.213766][ T4640]  get_tree_bdev+0x3f1/0x610
[  293.218415][ T4640]  ? gfs2_reconfigure+0xd30/0xd30
[  293.223505][ T4640]  gfs2_get_tree+0x4d/0x1e0
[  293.228063][ T4640]  vfs_get_tree+0x88/0x270
[  293.232630][ T4640]  do_new_mount+0x24a/0xa40
[  293.237207][ T4640]  __se_sys_mount+0x2e3/0x3d0
[  293.241943][ T4640]  ? __x64_sys_mount+0xc0/0xc0
[  293.246770][ T4640]  ? lockdep_hardirqs_on+0x94/0x140
[  293.252020][ T4640]  ? __x64_sys_mount+0x1c/0xc0
[  293.256838][ T4640]  do_syscall_64+0x4c/0xa0
[  293.261324][ T4640]  ? clear_bhb_loop+0x60/0xb0
[  293.266052][ T4640]  ? clear_bhb_loop+0x60/0xb0
[  293.270788][ T4640]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  293.276737][ T4640] RIP: 0033:0x7f2bc3f9e04a
[  293.281194][ T4640] 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
[  293.300854][ T4640] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.309324][ T4640] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  293.317341][ T4640] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  293.325372][ T4640] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  293.333400][ T4640] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  293.341442][ T4640] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  293.349481][ T4640]  </TASK>
[  293.357062][ T4640] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.370554][ T4640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  293.689742][ T4641] loop1: detected capacity change from 0 to 32768
[  293.706082][ T4641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  293.713700][ T4641] CPU: 1 PID: 4641 Comm: syz.1.198 Not tainted syzkaller #0
[  293.721060][ T4641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  293.731178][ T4641] Call Trace:
[  293.734508][ T4641]  <TASK>
[  293.737489][ T4641]  dump_stack_lvl+0x188/0x24e
[  293.742235][ T4641]  ? show_regs_print_info+0x12/0x12
[  293.747499][ T4641]  ? load_image+0x400/0x400
[  293.752119][ T4641]  sysfs_create_dir_ns+0x26a/0x290
[  293.757297][ T4641]  ? sysfs_warn_dup+0xa0/0xa0
[  293.762040][ T4641]  ? do_raw_spin_unlock+0x11d/0x230
[  293.767297][ T4641]  kobject_add_internal+0x61c/0xcc0
[  293.772557][ T4641]  kobject_init_and_add+0x128/0x190
[  293.777817][ T4641]  ? lockdep_softirqs_off+0x430/0x430
[  293.783250][ T4641]  ? kobject_add+0x230/0x230
[  293.787908][ T4641]  ? __init_swait_queue_head+0xa5/0x150
[  293.793520][ T4641]  gfs2_sys_fs_add+0x24f/0x4b0
[  293.798361][ T4641]  ? gfs2_recover_set+0x240/0x240
[  293.803573][ T4641]  ? snprintf+0xe5/0x140
[  293.807878][ T4641]  ? vscnprintf+0x80/0x80
[  293.812281][ T4641]  gfs2_fill_super+0x128c/0x1fb0
[  293.817295][ T4641]  ? gfs2_reconfigure+0xd30/0xd30
[  293.822400][ T4641]  ? sb_set_blocksize+0xa5/0xe0
[  293.827311][ T4641]  get_tree_bdev+0x3f1/0x610
[  293.831946][ T4641]  ? gfs2_reconfigure+0xd30/0xd30
[  293.837005][ T4641]  gfs2_get_tree+0x4d/0x1e0
[  293.841541][ T4641]  vfs_get_tree+0x88/0x270
[  293.845993][ T4641]  do_new_mount+0x24a/0xa40
[  293.850549][ T4641]  __se_sys_mount+0x2e3/0x3d0
[  293.855265][ T4641]  ? __x64_sys_mount+0xc0/0xc0
[  293.860070][ T4641]  ? lockdep_hardirqs_on+0x94/0x140
[  293.865300][ T4641]  ? __x64_sys_mount+0x1c/0xc0
[  293.870097][ T4641]  do_syscall_64+0x4c/0xa0
[  293.874585][ T4641]  ? clear_bhb_loop+0x60/0xb0
[  293.879296][ T4641]  ? clear_bhb_loop+0x60/0xb0
[  293.884011][ T4641]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  293.889938][ T4641] RIP: 0033:0x7f2bc3f9e04a
[  293.894432][ T4641] 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
[  293.914072][ T4641] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  293.922521][ T4641] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  293.930548][ T4641] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  293.938554][ T4641] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  293.946557][ T4641] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  293.954557][ T4641] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  293.962577][ T4641]  </TASK>
[  293.981440][ T4641] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  293.995904][ T4641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.320841][ T4642] loop1: detected capacity change from 0 to 32768
[  294.342018][ T4642] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  294.350135][ T4642] CPU: 0 PID: 4642 Comm: syz.1.199 Not tainted syzkaller #0
[  294.357485][ T4642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  294.367603][ T4642] Call Trace:
[  294.370934][ T4642]  <TASK>
[  294.373909][ T4642]  dump_stack_lvl+0x188/0x24e
[  294.378831][ T4642]  ? show_regs_print_info+0x12/0x12
[  294.384104][ T4642]  ? load_image+0x400/0x400
[  294.388679][ T4642]  sysfs_create_dir_ns+0x26a/0x290
[  294.393856][ T4642]  ? sysfs_warn_dup+0xa0/0xa0
[  294.398606][ T4642]  ? do_raw_spin_unlock+0x11d/0x230
[  294.403861][ T4642]  kobject_add_internal+0x61c/0xcc0
[  294.409220][ T4642]  kobject_init_and_add+0x128/0x190
[  294.414477][ T4642]  ? lockdep_softirqs_off+0x430/0x430
[  294.419910][ T4642]  ? kobject_add+0x230/0x230
[  294.424567][ T4642]  ? __init_swait_queue_head+0xa5/0x150
[  294.430190][ T4642]  gfs2_sys_fs_add+0x24f/0x4b0
[  294.435017][ T4642]  ? gfs2_recover_set+0x240/0x240
[  294.440116][ T4642]  ? snprintf+0xe5/0x140
[  294.444423][ T4642]  ? vscnprintf+0x80/0x80
[  294.448816][ T4642]  gfs2_fill_super+0x128c/0x1fb0
[  294.453819][ T4642]  ? gfs2_reconfigure+0xd30/0xd30
[  294.458914][ T4642]  ? sb_set_blocksize+0xa5/0xe0
[  294.463832][ T4642]  get_tree_bdev+0x3f1/0x610
[  294.468491][ T4642]  ? gfs2_reconfigure+0xd30/0xd30
[  294.473579][ T4642]  gfs2_get_tree+0x4d/0x1e0
[  294.478142][ T4642]  vfs_get_tree+0x88/0x270
[  294.482614][ T4642]  do_new_mount+0x24a/0xa40
[  294.487176][ T4642]  __se_sys_mount+0x2e3/0x3d0
[  294.491961][ T4642]  ? __x64_sys_mount+0xc0/0xc0
[  294.496784][ T4642]  ? lockdep_hardirqs_on+0x94/0x140
[  294.502026][ T4642]  ? __x64_sys_mount+0x1c/0xc0
[  294.506845][ T4642]  do_syscall_64+0x4c/0xa0
[  294.511319][ T4642]  ? clear_bhb_loop+0x60/0xb0
[  294.516062][ T4642]  ? clear_bhb_loop+0x60/0xb0
[  294.520799][ T4642]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  294.526745][ T4642] RIP: 0033:0x7f2bc3f9e04a
[  294.531207][ T4642] 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
[  294.550953][ T4642] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  294.559424][ T4642] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  294.567536][ T4642] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  294.575564][ T4642] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  294.583599][ T4642] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  294.591701][ T4642] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  294.599754][ T4642]  </TASK>
[  294.607202][ T4642] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  294.620721][ T4642] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  294.980622][ T4643] loop1: detected capacity change from 0 to 32768
[  295.004771][ T4643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.012357][ T4643] CPU: 0 PID: 4643 Comm: syz.1.200 Not tainted syzkaller #0
[  295.019880][ T4643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  295.029981][ T4643] Call Trace:
[  295.033313][ T4643]  <TASK>
[  295.036296][ T4643]  dump_stack_lvl+0x188/0x24e
[  295.041047][ T4643]  ? show_regs_print_info+0x12/0x12
[  295.046311][ T4643]  ? load_image+0x400/0x400
[  295.050957][ T4643]  sysfs_create_dir_ns+0x26a/0x290
[  295.056127][ T4643]  ? sysfs_warn_dup+0xa0/0xa0
[  295.060843][ T4643]  ? do_raw_spin_unlock+0x11d/0x230
[  295.066339][ T4643]  kobject_add_internal+0x61c/0xcc0
[  295.071640][ T4643]  kobject_init_and_add+0x128/0x190
[  295.076873][ T4643]  ? lockdep_softirqs_off+0x430/0x430
[  295.082455][ T4643]  ? kobject_add+0x230/0x230
[  295.087081][ T4643]  ? __init_swait_queue_head+0xa5/0x150
[  295.092671][ T4643]  gfs2_sys_fs_add+0x24f/0x4b0
[  295.097474][ T4643]  ? gfs2_recover_set+0x240/0x240
[  295.102537][ T4643]  ? snprintf+0xe5/0x140
[  295.106810][ T4643]  ? vscnprintf+0x80/0x80
[  295.111176][ T4643]  gfs2_fill_super+0x128c/0x1fb0
[  295.116151][ T4643]  ? gfs2_reconfigure+0xd30/0xd30
[  295.121213][ T4643]  ? sb_set_blocksize+0xa5/0xe0
[  295.126103][ T4643]  get_tree_bdev+0x3f1/0x610
[  295.130744][ T4643]  ? gfs2_reconfigure+0xd30/0xd30
[  295.135804][ T4643]  gfs2_get_tree+0x4d/0x1e0
[  295.140341][ T4643]  vfs_get_tree+0x88/0x270
[  295.144787][ T4643]  do_new_mount+0x24a/0xa40
[  295.149330][ T4643]  __se_sys_mount+0x2e3/0x3d0
[  295.154043][ T4643]  ? __x64_sys_mount+0xc0/0xc0
[  295.158843][ T4643]  ? lockdep_hardirqs_on+0x94/0x140
[  295.164076][ T4643]  ? __x64_sys_mount+0x1c/0xc0
[  295.168876][ T4643]  do_syscall_64+0x4c/0xa0
[  295.173329][ T4643]  ? clear_bhb_loop+0x60/0xb0
[  295.178038][ T4643]  ? clear_bhb_loop+0x60/0xb0
[  295.182755][ T4643]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  295.188685][ T4643] RIP: 0033:0x7f2bc3f9e04a
[  295.193128][ T4643] 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
[  295.212851][ T4643] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  295.221301][ T4643] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  295.229306][ T4643] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  295.237313][ T4643] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  295.245311][ T4643] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  295.253310][ T4643] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  295.261358][ T4643]  </TASK>
[  295.269095][ T4643] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.282475][ T4643] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  295.626487][ T4644] loop1: detected capacity change from 0 to 32768
[  295.645739][ T4644] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  295.653299][ T4644] CPU: 1 PID: 4644 Comm: syz.1.201 Not tainted syzkaller #0
[  295.660682][ T4644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  295.670791][ T4644] Call Trace:
[  295.674174][ T4644]  <TASK>
[  295.677167][ T4644]  dump_stack_lvl+0x188/0x24e
[  295.681916][ T4644]  ? show_regs_print_info+0x12/0x12
[  295.687179][ T4644]  ? load_image+0x400/0x400
[  295.691750][ T4644]  sysfs_create_dir_ns+0x26a/0x290
[  295.696934][ T4644]  ? sysfs_warn_dup+0xa0/0xa0
[  295.701674][ T4644]  ? do_raw_spin_unlock+0x11d/0x230
[  295.706925][ T4644]  kobject_add_internal+0x61c/0xcc0
[  295.712180][ T4644]  kobject_init_and_add+0x128/0x190
[  295.717428][ T4644]  ? lockdep_softirqs_off+0x430/0x430
[  295.722930][ T4644]  ? kobject_add+0x230/0x230
[  295.727555][ T4644]  ? __init_swait_queue_head+0xa5/0x150
[  295.733140][ T4644]  gfs2_sys_fs_add+0x24f/0x4b0
[  295.737943][ T4644]  ? gfs2_recover_set+0x240/0x240
[  295.743014][ T4644]  ? snprintf+0xe5/0x140
[  295.747294][ T4644]  ? vscnprintf+0x80/0x80
[  295.751663][ T4644]  gfs2_fill_super+0x128c/0x1fb0
[  295.756642][ T4644]  ? gfs2_reconfigure+0xd30/0xd30
[  295.761712][ T4644]  ? sb_set_blocksize+0xa5/0xe0
[  295.766600][ T4644]  get_tree_bdev+0x3f1/0x610
[  295.771224][ T4644]  ? gfs2_reconfigure+0xd30/0xd30
[  295.776283][ T4644]  gfs2_get_tree+0x4d/0x1e0
[  295.780831][ T4644]  vfs_get_tree+0x88/0x270
[  295.785280][ T4644]  do_new_mount+0x24a/0xa40
[  295.789817][ T4644]  __se_sys_mount+0x2e3/0x3d0
[  295.794527][ T4644]  ? __x64_sys_mount+0xc0/0xc0
[  295.799424][ T4644]  ? lockdep_hardirqs_on+0x94/0x140
[  295.804655][ T4644]  ? __x64_sys_mount+0x1c/0xc0
[  295.809455][ T4644]  do_syscall_64+0x4c/0xa0
[  295.813911][ T4644]  ? clear_bhb_loop+0x60/0xb0
[  295.818648][ T4644]  ? clear_bhb_loop+0x60/0xb0
[  295.823358][ T4644]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  295.829287][ T4644] RIP: 0033:0x7f2bc3f9e04a
[  295.833731][ T4644] 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
[  295.853383][ T4644] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  295.861837][ T4644] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  295.869844][ T4644] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  295.877862][ T4644] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  295.885955][ T4644] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  295.893957][ T4644] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  295.901976][ T4644]  </TASK>
[  295.906925][ T4644] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  295.921271][ T4644] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/26 07:42:05 executed programs: 187
[  296.265537][ T4645] loop1: detected capacity change from 0 to 32768
[  296.293523][ T4645] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.301408][ T4645] CPU: 1 PID: 4645 Comm: syz.1.202 Not tainted syzkaller #0
[  296.308763][ T4645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  296.318909][ T4645] Call Trace:
[  296.322244][ T4645]  <TASK>
[  296.325225][ T4645]  dump_stack_lvl+0x188/0x24e
[  296.329979][ T4645]  ? show_regs_print_info+0x12/0x12
[  296.335265][ T4645]  ? load_image+0x400/0x400
[  296.339891][ T4645]  sysfs_create_dir_ns+0x26a/0x290
[  296.345081][ T4645]  ? sysfs_warn_dup+0xa0/0xa0
[  296.349822][ T4645]  ? do_raw_spin_unlock+0x11d/0x230
[  296.355102][ T4645]  kobject_add_internal+0x61c/0xcc0
[  296.360389][ T4645]  kobject_init_and_add+0x128/0x190
[  296.365653][ T4645]  ? lockdep_softirqs_off+0x430/0x430
[  296.371103][ T4645]  ? kobject_add+0x230/0x230
[  296.375767][ T4645]  ? __init_swait_queue_head+0xa5/0x150
[  296.381389][ T4645]  gfs2_sys_fs_add+0x24f/0x4b0
[  296.386230][ T4645]  ? gfs2_recover_set+0x240/0x240
[  296.391328][ T4645]  ? snprintf+0xe5/0x140
[  296.395637][ T4645]  ? vscnprintf+0x80/0x80
[  296.400122][ T4645]  gfs2_fill_super+0x128c/0x1fb0
[  296.405128][ T4645]  ? gfs2_reconfigure+0xd30/0xd30
[  296.410223][ T4645]  ? sb_set_blocksize+0xa5/0xe0
[  296.415229][ T4645]  get_tree_bdev+0x3f1/0x610
[  296.419877][ T4645]  ? gfs2_reconfigure+0xd30/0xd30
[  296.424957][ T4645]  gfs2_get_tree+0x4d/0x1e0
[  296.429514][ T4645]  vfs_get_tree+0x88/0x270
[  296.433986][ T4645]  do_new_mount+0x24a/0xa40
[  296.438558][ T4645]  __se_sys_mount+0x2e3/0x3d0
[  296.443299][ T4645]  ? __x64_sys_mount+0xc0/0xc0
[  296.448125][ T4645]  ? lockdep_hardirqs_on+0x94/0x140
[  296.453374][ T4645]  ? __x64_sys_mount+0x1c/0xc0
[  296.458199][ T4645]  do_syscall_64+0x4c/0xa0
[  296.462679][ T4645]  ? clear_bhb_loop+0x60/0xb0
[  296.467414][ T4645]  ? clear_bhb_loop+0x60/0xb0
[  296.472150][ T4645]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  296.478095][ T4645] RIP: 0033:0x7f2bc3f9e04a
[  296.482553][ T4645] 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
[  296.502213][ T4645] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  296.510737][ T4645] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  296.518846][ T4645] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  296.526873][ T4645] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  296.534897][ T4645] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  296.542919][ T4645] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  296.550960][ T4645]  </TASK>
[  296.561389][ T4645] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  296.574765][ T4645] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  296.922799][ T4646] loop1: detected capacity change from 0 to 32768
[  296.936634][ T4646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  296.946266][ T4646] CPU: 1 PID: 4646 Comm: syz.1.203 Not tainted syzkaller #0
[  296.953612][ T4646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  296.963699][ T4646] Call Trace:
[  296.967022][ T4646]  <TASK>
[  296.969995][ T4646]  dump_stack_lvl+0x188/0x24e
[  296.974753][ T4646]  ? show_regs_print_info+0x12/0x12
[  296.980017][ T4646]  ? load_image+0x400/0x400
[  296.984593][ T4646]  sysfs_create_dir_ns+0x26a/0x290
[  296.989780][ T4646]  ? sysfs_warn_dup+0xa0/0xa0
[  296.994524][ T4646]  ? do_raw_spin_unlock+0x11d/0x230
[  296.999783][ T4646]  kobject_add_internal+0x61c/0xcc0
[  297.005044][ T4646]  kobject_init_and_add+0x128/0x190
[  297.010284][ T4646]  ? lockdep_softirqs_off+0x430/0x430
[  297.015693][ T4646]  ? kobject_add+0x230/0x230
[  297.020315][ T4646]  ? __init_swait_queue_head+0xa5/0x150
[  297.025913][ T4646]  gfs2_sys_fs_add+0x24f/0x4b0
[  297.030726][ T4646]  ? gfs2_recover_set+0x240/0x240
[  297.035785][ T4646]  ? snprintf+0xe5/0x140
[  297.040067][ T4646]  ? vscnprintf+0x80/0x80
[  297.044435][ T4646]  gfs2_fill_super+0x128c/0x1fb0
[  297.049416][ T4646]  ? gfs2_reconfigure+0xd30/0xd30
[  297.054478][ T4646]  ? sb_set_blocksize+0xa5/0xe0
[  297.059366][ T4646]  get_tree_bdev+0x3f1/0x610
[  297.063987][ T4646]  ? gfs2_reconfigure+0xd30/0xd30
[  297.069077][ T4646]  gfs2_get_tree+0x4d/0x1e0
[  297.073615][ T4646]  vfs_get_tree+0x88/0x270
[  297.078060][ T4646]  do_new_mount+0x24a/0xa40
[  297.082600][ T4646]  __se_sys_mount+0x2e3/0x3d0
[  297.087314][ T4646]  ? __x64_sys_mount+0xc0/0xc0
[  297.092153][ T4646]  ? lockdep_hardirqs_on+0x94/0x140
[  297.097401][ T4646]  ? __x64_sys_mount+0x1c/0xc0
[  297.102203][ T4646]  do_syscall_64+0x4c/0xa0
[  297.106658][ T4646]  ? clear_bhb_loop+0x60/0xb0
[  297.111368][ T4646]  ? clear_bhb_loop+0x60/0xb0
[  297.116081][ T4646]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  297.122102][ T4646] RIP: 0033:0x7f2bc3f9e04a
[  297.126555][ T4646] 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
[  297.146187][ T4646] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.154629][ T4646] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  297.162627][ T4646] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  297.170638][ T4646] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  297.178637][ T4646] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  297.186733][ T4646] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  297.194774][ T4646]  </TASK>
[  297.199614][ T4646] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  297.213198][ T4646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  297.560037][ T4647] loop1: detected capacity change from 0 to 32768
[  297.581116][ T4647] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  297.588658][ T4647] CPU: 1 PID: 4647 Comm: syz.1.204 Not tainted syzkaller #0
[  297.595960][ T4647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  297.606043][ T4647] Call Trace:
[  297.609378][ T4647]  <TASK>
[  297.612356][ T4647]  dump_stack_lvl+0x188/0x24e
[  297.617102][ T4647]  ? show_regs_print_info+0x12/0x12
[  297.622376][ T4647]  ? load_image+0x400/0x400
[  297.626960][ T4647]  sysfs_create_dir_ns+0x26a/0x290
[  297.632141][ T4647]  ? sysfs_warn_dup+0xa0/0xa0
[  297.636897][ T4647]  ? do_raw_spin_unlock+0x11d/0x230
[  297.642193][ T4647]  kobject_add_internal+0x61c/0xcc0
[  297.647455][ T4647]  kobject_init_and_add+0x128/0x190
[  297.652706][ T4647]  ? lockdep_softirqs_off+0x430/0x430
[  297.658139][ T4647]  ? kobject_add+0x230/0x230
[  297.662822][ T4647]  ? __init_swait_queue_head+0xa5/0x150
[  297.668435][ T4647]  gfs2_sys_fs_add+0x24f/0x4b0
[  297.673261][ T4647]  ? gfs2_recover_set+0x240/0x240
[  297.678347][ T4647]  ? snprintf+0xe5/0x140
[  297.682657][ T4647]  ? vscnprintf+0x80/0x80
[  297.687063][ T4647]  gfs2_fill_super+0x128c/0x1fb0
[  297.692071][ T4647]  ? gfs2_reconfigure+0xd30/0xd30
[  297.697166][ T4647]  ? sb_set_blocksize+0xa5/0xe0
[  297.702078][ T4647]  get_tree_bdev+0x3f1/0x610
[  297.706731][ T4647]  ? gfs2_reconfigure+0xd30/0xd30
[  297.711815][ T4647]  gfs2_get_tree+0x4d/0x1e0
[  297.716375][ T4647]  vfs_get_tree+0x88/0x270
[  297.720851][ T4647]  do_new_mount+0x24a/0xa40
[  297.725421][ T4647]  __se_sys_mount+0x2e3/0x3d0
[  297.730171][ T4647]  ? __x64_sys_mount+0xc0/0xc0
[  297.734999][ T4647]  ? lockdep_hardirqs_on+0x94/0x140
[  297.740249][ T4647]  ? __x64_sys_mount+0x1c/0xc0
[  297.745065][ T4647]  do_syscall_64+0x4c/0xa0
[  297.749541][ T4647]  ? clear_bhb_loop+0x60/0xb0
[  297.754276][ T4647]  ? clear_bhb_loop+0x60/0xb0
[  297.759015][ T4647]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  297.765046][ T4647] RIP: 0033:0x7f2bc3f9e04a
[  297.769515][ T4647] 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
[  297.789278][ T4647] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  297.797836][ T4647] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  297.805857][ T4647] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  297.813878][ T4647] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  297.821903][ T4647] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  297.829936][ T4647] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  297.837979][ T4647]  </TASK>
[  297.846529][ T4647] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  297.859832][ T4647] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.201008][ T4648] loop1: detected capacity change from 0 to 32768
[  298.221157][ T4648] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  298.229177][ T4648] CPU: 0 PID: 4648 Comm: syz.1.205 Not tainted syzkaller #0
[  298.236550][ T4648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  298.246654][ T4648] Call Trace:
[  298.249975][ T4648]  <TASK>
[  298.252949][ T4648]  dump_stack_lvl+0x188/0x24e
[  298.257696][ T4648]  ? show_regs_print_info+0x12/0x12
[  298.262963][ T4648]  ? load_image+0x400/0x400
[  298.267621][ T4648]  sysfs_create_dir_ns+0x26a/0x290
[  298.272846][ T4648]  ? sysfs_warn_dup+0xa0/0xa0
[  298.277579][ T4648]  ? do_raw_spin_unlock+0x11d/0x230
[  298.282928][ T4648]  kobject_add_internal+0x61c/0xcc0
[  298.288191][ T4648]  kobject_init_and_add+0x128/0x190
[  298.293442][ T4648]  ? lockdep_softirqs_off+0x430/0x430
[  298.298874][ T4648]  ? kobject_add+0x230/0x230
[  298.303520][ T4648]  ? __init_swait_queue_head+0xa5/0x150
[  298.309132][ T4648]  gfs2_sys_fs_add+0x24f/0x4b0
[  298.313963][ T4648]  ? gfs2_recover_set+0x240/0x240
[  298.319059][ T4648]  ? snprintf+0xe5/0x140
[  298.323360][ T4648]  ? vscnprintf+0x80/0x80
[  298.327753][ T4648]  gfs2_fill_super+0x128c/0x1fb0
[  298.332764][ T4648]  ? gfs2_reconfigure+0xd30/0xd30
[  298.337854][ T4648]  ? sb_set_blocksize+0xa5/0xe0
[  298.342771][ T4648]  get_tree_bdev+0x3f1/0x610
[  298.347424][ T4648]  ? gfs2_reconfigure+0xd30/0xd30
[  298.352549][ T4648]  gfs2_get_tree+0x4d/0x1e0
[  298.357114][ T4648]  vfs_get_tree+0x88/0x270
[  298.361594][ T4648]  do_new_mount+0x24a/0xa40
[  298.366201][ T4648]  __se_sys_mount+0x2e3/0x3d0
[  298.370940][ T4648]  ? __x64_sys_mount+0xc0/0xc0
[  298.375758][ T4648]  ? lockdep_hardirqs_on+0x94/0x140
[  298.381006][ T4648]  ? __x64_sys_mount+0x1c/0xc0
[  298.385830][ T4648]  do_syscall_64+0x4c/0xa0
[  298.390301][ T4648]  ? clear_bhb_loop+0x60/0xb0
[  298.395055][ T4648]  ? clear_bhb_loop+0x60/0xb0
[  298.399793][ T4648]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  298.405738][ T4648] RIP: 0033:0x7f2bc3f9e04a
[  298.410208][ T4648] 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
[  298.429954][ T4648] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  298.438430][ T4648] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  298.446452][ T4648] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  298.454475][ T4648] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  298.462503][ T4648] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  298.470533][ T4648] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  298.478573][ T4648]  </TASK>
[  298.482636][ T4648] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  298.495836][ T4648] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  298.748974][   T48] Bluetooth: hci1: command 0x0406 tx timeout
[  298.819201][ T4649] loop1: detected capacity change from 0 to 32768
[  298.841224][ T4649] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  298.848668][ T4649] CPU: 0 PID: 4649 Comm: syz.1.206 Not tainted syzkaller #0
[  298.856022][ T4649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  298.866106][ T4649] Call Trace:
[  298.869448][ T4649]  <TASK>
[  298.872418][ T4649]  dump_stack_lvl+0x188/0x24e
[  298.877158][ T4649]  ? show_regs_print_info+0x12/0x12
[  298.882424][ T4649]  ? load_image+0x400/0x400
[  298.886995][ T4649]  sysfs_create_dir_ns+0x26a/0x290
[  298.892171][ T4649]  ? sysfs_warn_dup+0xa0/0xa0
[  298.896910][ T4649]  ? do_raw_spin_unlock+0x11d/0x230
[  298.902158][ T4649]  kobject_add_internal+0x61c/0xcc0
[  298.907419][ T4649]  kobject_init_and_add+0x128/0x190
[  298.912670][ T4649]  ? lockdep_softirqs_off+0x430/0x430
[  298.918117][ T4649]  ? kobject_add+0x230/0x230
[  298.922767][ T4649]  ? __init_swait_queue_head+0xa5/0x150
[  298.928506][ T4649]  gfs2_sys_fs_add+0x24f/0x4b0
[  298.933340][ T4649]  ? gfs2_recover_set+0x240/0x240
[  298.938429][ T4649]  ? snprintf+0xe5/0x140
[  298.942735][ T4649]  ? vscnprintf+0x80/0x80
[  298.947222][ T4649]  gfs2_fill_super+0x128c/0x1fb0
[  298.952240][ T4649]  ? gfs2_reconfigure+0xd30/0xd30
[  298.957306][ T4649]  ? sb_set_blocksize+0xa5/0xe0
[  298.962199][ T4649]  get_tree_bdev+0x3f1/0x610
[  298.966822][ T4649]  ? gfs2_reconfigure+0xd30/0xd30
[  298.971888][ T4649]  gfs2_get_tree+0x4d/0x1e0
[  298.976693][ T4649]  vfs_get_tree+0x88/0x270
[  298.981155][ T4649]  do_new_mount+0x24a/0xa40
[  298.985698][ T4649]  __se_sys_mount+0x2e3/0x3d0
[  298.990412][ T4649]  ? __x64_sys_mount+0xc0/0xc0
[  298.995215][ T4649]  ? lockdep_hardirqs_on+0x94/0x140
[  299.000449][ T4649]  ? __x64_sys_mount+0x1c/0xc0
[  299.005242][ T4649]  do_syscall_64+0x4c/0xa0
[  299.009707][ T4649]  ? clear_bhb_loop+0x60/0xb0
[  299.014415][ T4649]  ? clear_bhb_loop+0x60/0xb0
[  299.019132][ T4649]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  299.025055][ T4649] RIP: 0033:0x7f2bc3f9e04a
[  299.029497][ T4649] 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
[  299.049196][ T4649] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  299.057655][ T4649] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  299.065749][ T4649] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  299.073745][ T4649] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  299.081748][ T4649] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  299.089754][ T4649] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  299.097768][ T4649]  </TASK>
[  299.108969][ T4649] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  299.122714][ T4649] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  299.465606][ T4650] loop1: detected capacity change from 0 to 32768
[  299.482217][ T4650] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  299.489909][ T4650] CPU: 0 PID: 4650 Comm: syz.1.207 Not tainted syzkaller #0
[  299.497257][ T4650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  299.507379][ T4650] Call Trace:
[  299.510712][ T4650]  <TASK>
[  299.513695][ T4650]  dump_stack_lvl+0x188/0x24e
[  299.518438][ T4650]  ? show_regs_print_info+0x12/0x12
[  299.523703][ T4650]  ? load_image+0x400/0x400
[  299.528275][ T4650]  sysfs_create_dir_ns+0x26a/0x290
[  299.533456][ T4650]  ? sysfs_warn_dup+0xa0/0xa0
[  299.538224][ T4650]  ? do_raw_spin_unlock+0x11d/0x230
[  299.543571][ T4650]  kobject_add_internal+0x61c/0xcc0
[  299.548835][ T4650]  kobject_init_and_add+0x128/0x190
[  299.554082][ T4650]  ? lockdep_softirqs_off+0x430/0x430
[  299.559526][ T4650]  ? kobject_add+0x230/0x230
[  299.564172][ T4650]  ? __init_swait_queue_head+0xa5/0x150
[  299.569780][ T4650]  gfs2_sys_fs_add+0x24f/0x4b0
[  299.574618][ T4650]  ? gfs2_recover_set+0x240/0x240
[  299.579709][ T4650]  ? snprintf+0xe5/0x140
[  299.584003][ T4650]  ? vscnprintf+0x80/0x80
[  299.588401][ T4650]  gfs2_fill_super+0x128c/0x1fb0
[  299.593409][ T4650]  ? gfs2_reconfigure+0xd30/0xd30
[  299.598494][ T4650]  ? sb_set_blocksize+0xa5/0xe0
[  299.603418][ T4650]  get_tree_bdev+0x3f1/0x610
[  299.608062][ T4650]  ? gfs2_reconfigure+0xd30/0xd30
[  299.613145][ T4650]  gfs2_get_tree+0x4d/0x1e0
[  299.617703][ T4650]  vfs_get_tree+0x88/0x270
[  299.622281][ T4650]  do_new_mount+0x24a/0xa40
[  299.626849][ T4650]  __se_sys_mount+0x2e3/0x3d0
[  299.631585][ T4650]  ? __x64_sys_mount+0xc0/0xc0
[  299.636511][ T4650]  ? lockdep_hardirqs_on+0x94/0x140
[  299.641768][ T4650]  ? __x64_sys_mount+0x1c/0xc0
[  299.646676][ T4650]  do_syscall_64+0x4c/0xa0
[  299.651156][ T4650]  ? clear_bhb_loop+0x60/0xb0
[  299.655892][ T4650]  ? clear_bhb_loop+0x60/0xb0
[  299.660628][ T4650]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  299.666578][ T4650] RIP: 0033:0x7f2bc3f9e04a
[  299.671046][ T4650] 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
[  299.690707][ T4650] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  299.699255][ T4650] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  299.707283][ T4650] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  299.715396][ T4650] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  299.723507][ T4650] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  299.731656][ T4650] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  299.739693][ T4650]  </TASK>
[  299.745315][ T4650] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  299.760087][ T4650] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  300.110879][ T4651] loop1: detected capacity change from 0 to 32768
[  300.131391][ T4651] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  300.138981][ T4651] CPU: 0 PID: 4651 Comm: syz.1.208 Not tainted syzkaller #0
[  300.146317][ T4651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  300.156426][ T4651] Call Trace:
[  300.159754][ T4651]  <TASK>
[  300.162728][ T4651]  dump_stack_lvl+0x188/0x24e
[  300.167475][ T4651]  ? show_regs_print_info+0x12/0x12
[  300.172738][ T4651]  ? load_image+0x400/0x400
[  300.177314][ T4651]  sysfs_create_dir_ns+0x26a/0x290
[  300.182686][ T4651]  ? sysfs_warn_dup+0xa0/0xa0
[  300.187422][ T4651]  ? do_raw_spin_unlock+0x11d/0x230
[  300.192676][ T4651]  kobject_add_internal+0x61c/0xcc0
[  300.197946][ T4651]  kobject_init_and_add+0x128/0x190
[  300.203203][ T4651]  ? lockdep_softirqs_off+0x430/0x430
[  300.208637][ T4651]  ? kobject_add+0x230/0x230
[  300.213289][ T4651]  ? __init_swait_queue_head+0xa5/0x150
[  300.218910][ T4651]  gfs2_sys_fs_add+0x24f/0x4b0
[  300.223837][ T4651]  ? gfs2_recover_set+0x240/0x240
[  300.228933][ T4651]  ? snprintf+0xe5/0x140
[  300.233240][ T4651]  ? vscnprintf+0x80/0x80
[  300.237638][ T4651]  gfs2_fill_super+0x128c/0x1fb0
[  300.242679][ T4651]  ? gfs2_reconfigure+0xd30/0xd30
[  300.247848][ T4651]  ? sb_set_blocksize+0xa5/0xe0
[  300.252762][ T4651]  get_tree_bdev+0x3f1/0x610
[  300.257409][ T4651]  ? gfs2_reconfigure+0xd30/0xd30
[  300.262492][ T4651]  gfs2_get_tree+0x4d/0x1e0
[  300.267052][ T4651]  vfs_get_tree+0x88/0x270
[  300.271535][ T4651]  do_new_mount+0x24a/0xa40
[  300.276179][ T4651]  __se_sys_mount+0x2e3/0x3d0
[  300.280920][ T4651]  ? __x64_sys_mount+0xc0/0xc0
[  300.285743][ T4651]  ? lockdep_hardirqs_on+0x94/0x140
[  300.290991][ T4651]  ? __x64_sys_mount+0x1c/0xc0
[  300.295818][ T4651]  do_syscall_64+0x4c/0xa0
[  300.300297][ T4651]  ? clear_bhb_loop+0x60/0xb0
[  300.305030][ T4651]  ? clear_bhb_loop+0x60/0xb0
[  300.309853][ T4651]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  300.315808][ T4651] RIP: 0033:0x7f2bc3f9e04a
[  300.320381][ T4651] 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
[  300.340057][ T4651] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  300.348528][ T4651] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  300.356556][ T4651] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  300.364576][ T4651] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  300.372593][ T4651] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  300.380618][ T4651] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  300.388659][ T4651]  </TASK>
[  300.396633][ T4651] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  300.412197][ T4651] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  300.731907][ T4652] loop1: detected capacity change from 0 to 32768
[  300.746215][ T4652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  300.757191][ T4652] CPU: 1 PID: 4652 Comm: syz.1.209 Not tainted syzkaller #0
[  300.764544][ T4652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  300.774655][ T4652] Call Trace:
[  300.777989][ T4652]  <TASK>
[  300.780963][ T4652]  dump_stack_lvl+0x188/0x24e
[  300.785713][ T4652]  ? show_regs_print_info+0x12/0x12
[  300.791091][ T4652]  ? load_image+0x400/0x400
[  300.795671][ T4652]  sysfs_create_dir_ns+0x26a/0x290
[  300.800842][ T4652]  ? sysfs_warn_dup+0xa0/0xa0
[  300.805582][ T4652]  ? do_raw_spin_unlock+0x11d/0x230
[  300.810839][ T4652]  kobject_add_internal+0x61c/0xcc0
[  300.816106][ T4652]  kobject_init_and_add+0x128/0x190
[  300.821371][ T4652]  ? lockdep_softirqs_off+0x430/0x430
[  300.826815][ T4652]  ? kobject_add+0x230/0x230
[  300.831464][ T4652]  ? __init_swait_queue_head+0xa5/0x150
[  300.837079][ T4652]  gfs2_sys_fs_add+0x24f/0x4b0
[  300.841919][ T4652]  ? gfs2_recover_set+0x240/0x240
[  300.847007][ T4652]  ? snprintf+0xe5/0x140
[  300.851315][ T4652]  ? vscnprintf+0x80/0x80
[  300.855703][ T4652]  gfs2_fill_super+0x128c/0x1fb0
[  300.860684][ T4652]  ? gfs2_reconfigure+0xd30/0xd30
[  300.865758][ T4652]  ? sb_set_blocksize+0xa5/0xe0
[  300.870651][ T4652]  get_tree_bdev+0x3f1/0x610
[  300.875277][ T4652]  ? gfs2_reconfigure+0xd30/0xd30
[  300.880459][ T4652]  gfs2_get_tree+0x4d/0x1e0
[  300.884993][ T4652]  vfs_get_tree+0x88/0x270
[  300.889450][ T4652]  do_new_mount+0x24a/0xa40
[  300.893990][ T4652]  __se_sys_mount+0x2e3/0x3d0
[  300.898706][ T4652]  ? __x64_sys_mount+0xc0/0xc0
[  300.903502][ T4652]  ? lockdep_hardirqs_on+0x94/0x140
[  300.908733][ T4652]  ? __x64_sys_mount+0x1c/0xc0
[  300.913530][ T4652]  do_syscall_64+0x4c/0xa0
[  300.917984][ T4652]  ? clear_bhb_loop+0x60/0xb0
[  300.922698][ T4652]  ? clear_bhb_loop+0x60/0xb0
[  300.927411][ T4652]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  300.933349][ T4652] RIP: 0033:0x7f2bc3f9e04a
[  300.937795][ T4652] 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
[  300.957536][ T4652] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  300.966018][ T4652] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  300.974028][ T4652] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  300.982032][ T4652] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  300.990037][ T4652] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  300.998041][ T4652] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  301.006059][ T4652]  </TASK>
[  301.015569][ T4652] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  301.031252][ T4652] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/26 07:42:10 executed programs: 195
[  301.366397][ T4653] loop1: detected capacity change from 0 to 32768
[  301.385541][ T4653] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  301.393109][ T4653] CPU: 0 PID: 4653 Comm: syz.1.210 Not tainted syzkaller #0
[  301.400456][ T4653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  301.410564][ T4653] Call Trace:
[  301.413904][ T4653]  <TASK>
[  301.416894][ T4653]  dump_stack_lvl+0x188/0x24e
[  301.421652][ T4653]  ? show_regs_print_info+0x12/0x12
[  301.426923][ T4653]  ? load_image+0x400/0x400
[  301.431494][ T4653]  sysfs_create_dir_ns+0x26a/0x290
[  301.436668][ T4653]  ? sysfs_warn_dup+0xa0/0xa0
[  301.441409][ T4653]  ? do_raw_spin_unlock+0x11d/0x230
[  301.446670][ T4653]  kobject_add_internal+0x61c/0xcc0
[  301.451935][ T4653]  kobject_init_and_add+0x128/0x190
[  301.457192][ T4653]  ? lockdep_softirqs_off+0x430/0x430
[  301.462631][ T4653]  ? kobject_add+0x230/0x230
[  301.467277][ T4653]  ? __init_swait_queue_head+0xa5/0x150
[  301.472895][ T4653]  gfs2_sys_fs_add+0x24f/0x4b0
[  301.478083][ T4653]  ? gfs2_recover_set+0x240/0x240
[  301.483166][ T4653]  ? snprintf+0xe5/0x140
[  301.487441][ T4653]  ? vscnprintf+0x80/0x80
[  301.491822][ T4653]  gfs2_fill_super+0x128c/0x1fb0
[  301.496828][ T4653]  ? gfs2_reconfigure+0xd30/0xd30
[  301.501898][ T4653]  ? sb_set_blocksize+0xa5/0xe0
[  301.506840][ T4653]  get_tree_bdev+0x3f1/0x610
[  301.511465][ T4653]  ? gfs2_reconfigure+0xd30/0xd30
[  301.516524][ T4653]  gfs2_get_tree+0x4d/0x1e0
[  301.521065][ T4653]  vfs_get_tree+0x88/0x270
[  301.525526][ T4653]  do_new_mount+0x24a/0xa40
[  301.530062][ T4653]  __se_sys_mount+0x2e3/0x3d0
[  301.534777][ T4653]  ? __x64_sys_mount+0xc0/0xc0
[  301.539581][ T4653]  ? lockdep_hardirqs_on+0x94/0x140
[  301.544806][ T4653]  ? __x64_sys_mount+0x1c/0xc0
[  301.549606][ T4653]  do_syscall_64+0x4c/0xa0
[  301.554084][ T4653]  ? clear_bhb_loop+0x60/0xb0
[  301.558807][ T4653]  ? clear_bhb_loop+0x60/0xb0
[  301.563564][ T4653]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  301.569489][ T4653] RIP: 0033:0x7f2bc3f9e04a
[  301.573934][ T4653] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  301.593672][ T4653] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  301.602120][ T4653] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  301.610142][ T4653] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  301.618168][ T4653] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  301.626177][ T4653] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  301.634199][ T4653] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  301.642219][ T4653]  </TASK>
[  301.653316][ T4653] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  301.668078][ T4653] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  302.008174][ T4654] loop1: detected capacity change from 0 to 32768
[  302.034769][ T4654] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  302.042469][ T4654] CPU: 0 PID: 4654 Comm: syz.1.211 Not tainted syzkaller #0
[  302.049812][ T4654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.059932][ T4654] Call Trace:
[  302.063256][ T4654]  <TASK>
[  302.066232][ T4654]  dump_stack_lvl+0x188/0x24e
[  302.071018][ T4654]  ? show_regs_print_info+0x12/0x12
[  302.076839][ T4654]  ? load_image+0x400/0x400
[  302.081410][ T4654]  sysfs_create_dir_ns+0x26a/0x290
[  302.086587][ T4654]  ? sysfs_warn_dup+0xa0/0xa0
[  302.091362][ T4654]  ? do_raw_spin_unlock+0x11d/0x230
[  302.096616][ T4654]  kobject_add_internal+0x61c/0xcc0
[  302.101884][ T4654]  kobject_init_and_add+0x128/0x190
[  302.107222][ T4654]  ? lockdep_softirqs_off+0x430/0x430
[  302.112663][ T4654]  ? kobject_add+0x230/0x230
[  302.117312][ T4654]  ? __init_swait_queue_head+0xa5/0x150
[  302.122926][ T4654]  gfs2_sys_fs_add+0x24f/0x4b0
[  302.127761][ T4654]  ? gfs2_recover_set+0x240/0x240
[  302.132852][ T4654]  ? snprintf+0xe5/0x140
[  302.137168][ T4654]  ? vscnprintf+0x80/0x80
[  302.141564][ T4654]  gfs2_fill_super+0x128c/0x1fb0
[  302.146566][ T4654]  ? gfs2_reconfigure+0xd30/0xd30
[  302.151654][ T4654]  ? sb_set_blocksize+0xa5/0xe0
[  302.156567][ T4654]  get_tree_bdev+0x3f1/0x610
[  302.161220][ T4654]  ? gfs2_reconfigure+0xd30/0xd30
[  302.166306][ T4654]  gfs2_get_tree+0x4d/0x1e0
[  302.170863][ T4654]  vfs_get_tree+0x88/0x270
[  302.175330][ T4654]  do_new_mount+0x24a/0xa40
[  302.179894][ T4654]  __se_sys_mount+0x2e3/0x3d0
[  302.184624][ T4654]  ? __x64_sys_mount+0xc0/0xc0
[  302.189439][ T4654]  ? lockdep_hardirqs_on+0x94/0x140
[  302.194687][ T4654]  ? __x64_sys_mount+0x1c/0xc0
[  302.199498][ T4654]  do_syscall_64+0x4c/0xa0
[  302.203980][ T4654]  ? clear_bhb_loop+0x60/0xb0
[  302.208711][ T4654]  ? clear_bhb_loop+0x60/0xb0
[  302.213443][ T4654]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  302.219387][ T4654] RIP: 0033:0x7f2bc3f9e04a
[  302.223849][ T4654] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  302.243679][ T4654] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  302.252152][ T4654] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  302.260169][ T4654] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  302.268183][ T4654] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  302.276199][ T4654] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  302.284219][ T4654] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  302.292252][ T4654]  </TASK>
[  302.301017][ T4654] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  302.314305][ T4654] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  302.655739][ T4655] loop1: detected capacity change from 0 to 32768
[  302.677311][ T4655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  302.684930][ T4655] CPU: 0 PID: 4655 Comm: syz.1.212 Not tainted syzkaller #0
[  302.692282][ T4655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  302.702387][ T4655] Call Trace:
[  302.705708][ T4655]  <TASK>
[  302.708692][ T4655]  dump_stack_lvl+0x188/0x24e
[  302.713427][ T4655]  ? show_regs_print_info+0x12/0x12
[  302.718686][ T4655]  ? load_image+0x400/0x400
[  302.723258][ T4655]  sysfs_create_dir_ns+0x26a/0x290
[  302.728430][ T4655]  ? sysfs_warn_dup+0xa0/0xa0
[  302.733165][ T4655]  ? do_raw_spin_unlock+0x11d/0x230
[  302.738416][ T4655]  kobject_add_internal+0x61c/0xcc0
[  302.743661][ T4655]  kobject_init_and_add+0x128/0x190
[  302.748896][ T4655]  ? lockdep_softirqs_off+0x430/0x430
[  302.754321][ T4655]  ? kobject_add+0x230/0x230
[  302.758964][ T4655]  ? __init_swait_queue_head+0xa5/0x150
[  302.764559][ T4655]  gfs2_sys_fs_add+0x24f/0x4b0
[  302.769362][ T4655]  ? gfs2_recover_set+0x240/0x240
[  302.774421][ T4655]  ? snprintf+0xe5/0x140
[  302.778696][ T4655]  ? vscnprintf+0x80/0x80
[  302.783068][ T4655]  gfs2_fill_super+0x128c/0x1fb0
[  302.788052][ T4655]  ? gfs2_reconfigure+0xd30/0xd30
[  302.793113][ T4655]  ? sb_set_blocksize+0xa5/0xe0
[  302.798008][ T4655]  get_tree_bdev+0x3f1/0x610
[  302.802644][ T4655]  ? gfs2_reconfigure+0xd30/0xd30
[  302.807702][ T4655]  gfs2_get_tree+0x4d/0x1e0
[  302.812243][ T4655]  vfs_get_tree+0x88/0x270
[  302.816691][ T4655]  do_new_mount+0x24a/0xa40
[  302.821228][ T4655]  __se_sys_mount+0x2e3/0x3d0
[  302.825964][ T4655]  ? __x64_sys_mount+0xc0/0xc0
[  302.830774][ T4655]  ? lockdep_hardirqs_on+0x94/0x140
[  302.836028][ T4655]  ? __x64_sys_mount+0x1c/0xc0
[  302.841047][ T4655]  do_syscall_64+0x4c/0xa0
[  302.845510][ T4655]  ? clear_bhb_loop+0x60/0xb0
[  302.850229][ T4655]  ? clear_bhb_loop+0x60/0xb0
[  302.854975][ T4655]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  302.860913][ T4655] RIP: 0033:0x7f2bc3f9e04a
[  302.865360][ T4655] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  302.885434][ T4655] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  302.893902][ T4655] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  302.901923][ T4655] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  302.909985][ T4655] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  302.917996][ T4655] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  302.926007][ T4655] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  302.934030][ T4655]  </TASK>
[  302.945923][ T4655] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  302.959852][ T4655] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  303.306138][ T4656] loop1: detected capacity change from 0 to 32768
[  303.318611][ T4656] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  303.328389][ T4656] CPU: 0 PID: 4656 Comm: syz.1.213 Not tainted syzkaller #0
[  303.335755][ T4656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  303.345863][ T4656] Call Trace:
[  303.349187][ T4656]  <TASK>
[  303.352166][ T4656]  dump_stack_lvl+0x188/0x24e
[  303.356927][ T4656]  ? show_regs_print_info+0x12/0x12
[  303.362195][ T4656]  ? load_image+0x400/0x400
[  303.366782][ T4656]  sysfs_create_dir_ns+0x26a/0x290
[  303.371956][ T4656]  ? sysfs_warn_dup+0xa0/0xa0
[  303.376708][ T4656]  ? do_raw_spin_unlock+0x11d/0x230
[  303.382007][ T4656]  kobject_add_internal+0x61c/0xcc0
[  303.387276][ T4656]  kobject_init_and_add+0x128/0x190
[  303.392534][ T4656]  ? lockdep_softirqs_off+0x430/0x430
[  303.397977][ T4656]  ? kobject_add+0x230/0x230
[  303.402632][ T4656]  ? __init_swait_queue_head+0xa5/0x150
[  303.408238][ T4656]  gfs2_sys_fs_add+0x24f/0x4b0
[  303.413080][ T4656]  ? gfs2_recover_set+0x240/0x240
[  303.418172][ T4656]  ? snprintf+0xe5/0x140
[  303.422479][ T4656]  ? vscnprintf+0x80/0x80
[  303.426875][ T4656]  gfs2_fill_super+0x128c/0x1fb0
[  303.431885][ T4656]  ? gfs2_reconfigure+0xd30/0xd30
[  303.436975][ T4656]  ? sb_set_blocksize+0xa5/0xe0
[  303.441946][ T4656]  get_tree_bdev+0x3f1/0x610
[  303.446593][ T4656]  ? gfs2_reconfigure+0xd30/0xd30
[  303.451675][ T4656]  gfs2_get_tree+0x4d/0x1e0
[  303.456241][ T4656]  vfs_get_tree+0x88/0x270
[  303.460714][ T4656]  do_new_mount+0x24a/0xa40
[  303.465274][ T4656]  __se_sys_mount+0x2e3/0x3d0
[  303.470011][ T4656]  ? __x64_sys_mount+0xc0/0xc0
[  303.474818][ T4656]  ? lockdep_hardirqs_on+0x94/0x140
[  303.480145][ T4656]  ? __x64_sys_mount+0x1c/0xc0
[  303.484961][ T4656]  do_syscall_64+0x4c/0xa0
[  303.489418][ T4656]  ? clear_bhb_loop+0x60/0xb0
[  303.494132][ T4656]  ? clear_bhb_loop+0x60/0xb0
[  303.498854][ T4656]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  303.504789][ T4656] RIP: 0033:0x7f2bc3f9e04a
[  303.509236][ T4656] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  303.528897][ T4656] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  303.537344][ T4656] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  303.545345][ T4656] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  303.553349][ T4656] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  303.561357][ T4656] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  303.569365][ T4656] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  303.577393][ T4656]  </TASK>
[  303.586747][ T4656] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  303.600229][ T4656] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  303.928394][ T4657] loop1: detected capacity change from 0 to 32768
[  303.950439][ T4657] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  303.957954][ T4657] CPU: 0 PID: 4657 Comm: syz.1.214 Not tainted syzkaller #0
[  303.965415][ T4657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  303.975523][ T4657] Call Trace:
[  303.978940][ T4657]  <TASK>
[  303.981926][ T4657]  dump_stack_lvl+0x188/0x24e
[  303.986679][ T4657]  ? show_regs_print_info+0x12/0x12
[  303.991953][ T4657]  ? load_image+0x400/0x400
[  303.996529][ T4657]  sysfs_create_dir_ns+0x26a/0x290
[  304.001716][ T4657]  ? sysfs_warn_dup+0xa0/0xa0
[  304.006460][ T4657]  ? do_raw_spin_unlock+0x11d/0x230
[  304.011728][ T4657]  kobject_add_internal+0x61c/0xcc0
[  304.016992][ T4657]  kobject_init_and_add+0x128/0x190
[  304.022251][ T4657]  ? lockdep_softirqs_off+0x430/0x430
[  304.027781][ T4657]  ? kobject_add+0x230/0x230
[  304.032436][ T4657]  ? __init_swait_queue_head+0xa5/0x150
[  304.038062][ T4657]  gfs2_sys_fs_add+0x24f/0x4b0
[  304.042889][ T4657]  ? gfs2_recover_set+0x240/0x240
[  304.047958][ T4657]  ? snprintf+0xe5/0x140
[  304.052236][ T4657]  ? vscnprintf+0x80/0x80
[  304.056607][ T4657]  gfs2_fill_super+0x128c/0x1fb0
[  304.061596][ T4657]  ? gfs2_reconfigure+0xd30/0xd30
[  304.066671][ T4657]  ? sb_set_blocksize+0xa5/0xe0
[  304.071572][ T4657]  get_tree_bdev+0x3f1/0x610
[  304.076226][ T4657]  ? gfs2_reconfigure+0xd30/0xd30
[  304.081291][ T4657]  gfs2_get_tree+0x4d/0x1e0
[  304.085853][ T4657]  vfs_get_tree+0x88/0x270
[  304.090318][ T4657]  do_new_mount+0x24a/0xa40
[  304.094863][ T4657]  __se_sys_mount+0x2e3/0x3d0
[  304.099588][ T4657]  ? __x64_sys_mount+0xc0/0xc0
[  304.104412][ T4657]  ? lockdep_hardirqs_on+0x94/0x140
[  304.109640][ T4657]  ? __x64_sys_mount+0x1c/0xc0
[  304.114962][ T4657]  do_syscall_64+0x4c/0xa0
[  304.119509][ T4657]  ? clear_bhb_loop+0x60/0xb0
[  304.124219][ T4657]  ? clear_bhb_loop+0x60/0xb0
[  304.128936][ T4657]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  304.134864][ T4657] RIP: 0033:0x7f2bc3f9e04a
[  304.139335][ T4657] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  304.159149][ T4657] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  304.167593][ T4657] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  304.175601][ T4657] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  304.183599][ T4657] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  304.191595][ T4657] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  304.199598][ T4657] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  304.207611][ T4657]  </TASK>
[  304.216719][ T4657] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  304.231197][ T4657] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  304.559860][ T4658] loop1: detected capacity change from 0 to 32768
[  304.575008][ T4658] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  304.583770][ T4658] CPU: 1 PID: 4658 Comm: syz.1.215 Not tainted syzkaller #0
[  304.591124][ T4658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  304.601222][ T4658] Call Trace:
[  304.604545][ T4658]  <TASK>
[  304.607518][ T4658]  dump_stack_lvl+0x188/0x24e
[  304.612268][ T4658]  ? show_regs_print_info+0x12/0x12
[  304.617541][ T4658]  ? load_image+0x400/0x400
[  304.622114][ T4658]  sysfs_create_dir_ns+0x26a/0x290
[  304.627296][ T4658]  ? sysfs_warn_dup+0xa0/0xa0
[  304.632036][ T4658]  ? do_raw_spin_unlock+0x11d/0x230
[  304.637289][ T4658]  kobject_add_internal+0x61c/0xcc0
[  304.642552][ T4658]  kobject_init_and_add+0x128/0x190
[  304.647806][ T4658]  ? lockdep_softirqs_off+0x430/0x430
[  304.653323][ T4658]  ? kobject_add+0x230/0x230
[  304.658011][ T4658]  ? __init_swait_queue_head+0xa5/0x150
[  304.663800][ T4658]  gfs2_sys_fs_add+0x24f/0x4b0
[  304.668631][ T4658]  ? gfs2_recover_set+0x240/0x240
[  304.673815][ T4658]  ? snprintf+0xe5/0x140
[  304.678118][ T4658]  ? vscnprintf+0x80/0x80
[  304.682532][ T4658]  gfs2_fill_super+0x128c/0x1fb0
[  304.687539][ T4658]  ? gfs2_reconfigure+0xd30/0xd30
[  304.692628][ T4658]  ? sb_set_blocksize+0xa5/0xe0
[  304.697544][ T4658]  get_tree_bdev+0x3f1/0x610
[  304.702172][ T4658]  ? gfs2_reconfigure+0xd30/0xd30
[  304.707223][ T4658]  gfs2_get_tree+0x4d/0x1e0
[  304.711764][ T4658]  vfs_get_tree+0x88/0x270
[  304.716223][ T4658]  do_new_mount+0x24a/0xa40
[  304.720769][ T4658]  __se_sys_mount+0x2e3/0x3d0
[  304.725483][ T4658]  ? __x64_sys_mount+0xc0/0xc0
[  304.730278][ T4658]  ? lockdep_hardirqs_on+0x94/0x140
[  304.735506][ T4658]  ? __x64_sys_mount+0x1c/0xc0
[  304.740298][ T4658]  do_syscall_64+0x4c/0xa0
[  304.744749][ T4658]  ? clear_bhb_loop+0x60/0xb0
[  304.749465][ T4658]  ? clear_bhb_loop+0x60/0xb0
[  304.754184][ T4658]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  304.760109][ T4658] RIP: 0033:0x7f2bc3f9e04a
[  304.764559][ T4658] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  304.784390][ T4658] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  304.792837][ T4658] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  304.800870][ T4658] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  304.808869][ T4658] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  304.816870][ T4658] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  304.824865][ T4658] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  304.832883][ T4658]  </TASK>
[  304.843926][ T4658] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  304.859723][ T4658] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  305.197806][ T4660] loop1: detected capacity change from 0 to 32768
[  305.215832][ T4660] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  305.223427][ T4660] CPU: 0 PID: 4660 Comm: syz.1.216 Not tainted syzkaller #0
[  305.230769][ T4660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  305.240966][ T4660] Call Trace:
[  305.244296][ T4660]  <TASK>
[  305.247273][ T4660]  dump_stack_lvl+0x188/0x24e
[  305.252039][ T4660]  ? show_regs_print_info+0x12/0x12
[  305.257303][ T4660]  ? load_image+0x400/0x400
[  305.261891][ T4660]  sysfs_create_dir_ns+0x26a/0x290
[  305.267071][ T4660]  ? sysfs_warn_dup+0xa0/0xa0
[  305.271808][ T4660]  ? do_raw_spin_unlock+0x11d/0x230
[  305.277069][ T4660]  kobject_add_internal+0x61c/0xcc0
[  305.282419][ T4660]  kobject_init_and_add+0x128/0x190
[  305.287672][ T4660]  ? lockdep_softirqs_off+0x430/0x430
[  305.293115][ T4660]  ? kobject_add+0x230/0x230
[  305.297767][ T4660]  ? __init_swait_queue_head+0xa5/0x150
[  305.303385][ T4660]  gfs2_sys_fs_add+0x24f/0x4b0
[  305.308220][ T4660]  ? gfs2_recover_set+0x240/0x240
[  305.313315][ T4660]  ? snprintf+0xe5/0x140
[  305.317631][ T4660]  ? vscnprintf+0x80/0x80
[  305.322043][ T4660]  gfs2_fill_super+0x128c/0x1fb0
[  305.327055][ T4660]  ? gfs2_reconfigure+0xd30/0xd30
[  305.332152][ T4660]  ? sb_set_blocksize+0xa5/0xe0
[  305.337160][ T4660]  get_tree_bdev+0x3f1/0x610
[  305.341810][ T4660]  ? gfs2_reconfigure+0xd30/0xd30
[  305.346892][ T4660]  gfs2_get_tree+0x4d/0x1e0
[  305.351455][ T4660]  vfs_get_tree+0x88/0x270
[  305.355933][ T4660]  do_new_mount+0x24a/0xa40
[  305.360499][ T4660]  __se_sys_mount+0x2e3/0x3d0
[  305.365242][ T4660]  ? __x64_sys_mount+0xc0/0xc0
[  305.370063][ T4660]  ? lockdep_hardirqs_on+0x94/0x140
[  305.375310][ T4660]  ? __x64_sys_mount+0x1c/0xc0
[  305.380141][ T4660]  do_syscall_64+0x4c/0xa0
[  305.384612][ T4660]  ? clear_bhb_loop+0x60/0xb0
[  305.389384][ T4660]  ? clear_bhb_loop+0x60/0xb0
[  305.394216][ T4660]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  305.400165][ T4660] RIP: 0033:0x7f2bc3f9e04a
[  305.404631][ T4660] 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
[  305.424379][ T4660] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  305.432852][ T4660] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  305.440915][ T4660] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  305.448932][ T4660] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  305.457038][ T4660] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  305.465060][ T4660] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  305.473098][ T4660]  </TASK>
[  305.481210][ T4660] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  305.494714][ T4660] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  305.818580][ T4661] loop1: detected capacity change from 0 to 32768
[  305.839238][ T4661] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  305.846782][ T4661] CPU: 0 PID: 4661 Comm: syz.1.217 Not tainted syzkaller #0
[  305.854128][ T4661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  305.864235][ T4661] Call Trace:
[  305.867563][ T4661]  <TASK>
[  305.870561][ T4661]  dump_stack_lvl+0x188/0x24e
[  305.875296][ T4661]  ? show_regs_print_info+0x12/0x12
[  305.880551][ T4661]  ? load_image+0x400/0x400
[  305.885121][ T4661]  sysfs_create_dir_ns+0x26a/0x290
[  305.890292][ T4661]  ? sysfs_warn_dup+0xa0/0xa0
[  305.895033][ T4661]  ? do_raw_spin_unlock+0x11d/0x230
[  305.900289][ T4661]  kobject_add_internal+0x61c/0xcc0
[  305.905559][ T4661]  kobject_init_and_add+0x128/0x190
[  305.910810][ T4661]  ? lockdep_softirqs_off+0x430/0x430
[  305.916415][ T4661]  ? kobject_add+0x230/0x230
[  305.921063][ T4661]  ? __init_swait_queue_head+0xa5/0x150
[  305.926670][ T4661]  gfs2_sys_fs_add+0x24f/0x4b0
[  305.931504][ T4661]  ? gfs2_recover_set+0x240/0x240
[  305.936605][ T4661]  ? snprintf+0xe5/0x140
[  305.940912][ T4661]  ? vscnprintf+0x80/0x80
[  305.945307][ T4661]  gfs2_fill_super+0x128c/0x1fb0
[  305.950310][ T4661]  ? gfs2_reconfigure+0xd30/0xd30
[  305.955395][ T4661]  ? sb_set_blocksize+0xa5/0xe0
[  305.960309][ T4661]  get_tree_bdev+0x3f1/0x610
[  305.964951][ T4661]  ? gfs2_reconfigure+0xd30/0xd30
[  305.970034][ T4661]  gfs2_get_tree+0x4d/0x1e0
[  305.974621][ T4661]  vfs_get_tree+0x88/0x270
[  305.979093][ T4661]  do_new_mount+0x24a/0xa40
[  305.983656][ T4661]  __se_sys_mount+0x2e3/0x3d0
[  305.988394][ T4661]  ? __x64_sys_mount+0xc0/0xc0
[  305.993221][ T4661]  ? lockdep_hardirqs_on+0x94/0x140
[  305.998508][ T4661]  ? __x64_sys_mount+0x1c/0xc0
[  306.003332][ T4661]  do_syscall_64+0x4c/0xa0
[  306.007819][ T4661]  ? clear_bhb_loop+0x60/0xb0
[  306.012548][ T4661]  ? clear_bhb_loop+0x60/0xb0
[  306.017288][ T4661]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  306.023238][ T4661] RIP: 0033:0x7f2bc3f9e04a
[  306.027696][ T4661] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  306.047361][ T4661] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.055835][ T4661] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  306.063860][ T4661] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  306.071879][ T4661] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  306.079896][ T4661] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  306.087932][ T4661] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  306.095971][ T4661]  </TASK>
[  306.104308][ T4661] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.118003][ T4661] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/04/26 07:42:15 executed programs: 203
[  306.451226][ T4663] loop1: detected capacity change from 0 to 32768
[  306.468996][ T4663] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  306.476449][ T4663] CPU: 0 PID: 4663 Comm: syz.1.218 Not tainted syzkaller #0
[  306.483784][ T4663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  306.493893][ T4663] Call Trace:
[  306.497218][ T4663]  <TASK>
[  306.500197][ T4663]  dump_stack_lvl+0x188/0x24e
[  306.504938][ T4663]  ? show_regs_print_info+0x12/0x12
[  306.510204][ T4663]  ? load_image+0x400/0x400
[  306.514787][ T4663]  sysfs_create_dir_ns+0x26a/0x290
[  306.519974][ T4663]  ? sysfs_warn_dup+0xa0/0xa0
[  306.524714][ T4663]  ? do_raw_spin_unlock+0x11d/0x230
[  306.529971][ T4663]  kobject_add_internal+0x61c/0xcc0
[  306.535229][ T4663]  kobject_init_and_add+0x128/0x190
[  306.540489][ T4663]  ? lockdep_softirqs_off+0x430/0x430
[  306.545922][ T4663]  ? kobject_add+0x230/0x230
[  306.550568][ T4663]  ? __init_swait_queue_head+0xa5/0x150
[  306.556189][ T4663]  gfs2_sys_fs_add+0x24f/0x4b0
[  306.561119][ T4663]  ? gfs2_recover_set+0x240/0x240
[  306.566212][ T4663]  ? snprintf+0xe5/0x140
[  306.570520][ T4663]  ? vscnprintf+0x80/0x80
[  306.574912][ T4663]  gfs2_fill_super+0x128c/0x1fb0
[  306.579915][ T4663]  ? gfs2_reconfigure+0xd30/0xd30
[  306.584998][ T4663]  ? sb_set_blocksize+0xa5/0xe0
[  306.589909][ T4663]  get_tree_bdev+0x3f1/0x610
[  306.594569][ T4663]  ? gfs2_reconfigure+0xd30/0xd30
[  306.599658][ T4663]  gfs2_get_tree+0x4d/0x1e0
[  306.604216][ T4663]  vfs_get_tree+0x88/0x270
[  306.608688][ T4663]  do_new_mount+0x24a/0xa40
[  306.613255][ T4663]  __se_sys_mount+0x2e3/0x3d0
[  306.617996][ T4663]  ? __x64_sys_mount+0xc0/0xc0
[  306.622827][ T4663]  ? lockdep_hardirqs_on+0x94/0x140
[  306.628342][ T4663]  ? __x64_sys_mount+0x1c/0xc0
[  306.633163][ T4663]  do_syscall_64+0x4c/0xa0
[  306.637678][ T4663]  ? clear_bhb_loop+0x60/0xb0
[  306.642433][ T4663]  ? clear_bhb_loop+0x60/0xb0
[  306.647167][ T4663]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  306.653116][ T4663] RIP: 0033:0x7f2bc3f9e04a
[  306.657580][ T4663] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  306.677421][ T4663] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  306.685891][ T4663] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  306.693918][ T4663] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  306.701942][ T4663] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  306.710014][ T4663] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  306.718066][ T4663] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  306.726112][ T4663]  </TASK>
[  306.741881][ T4663] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  306.762116][ T4663] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  306.910585][   T28] INFO: task kworker/0:10:4364 blocked for more than 143 seconds.
[  306.918732][   T28]       Not tainted syzkaller #0
[  306.925053][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  306.934521][   T28] task:kworker/0:10    state:D stack:24816 pid:4364  ppid:2      flags:0x00004000
[  306.946163][   T28] Workqueue: gfs_recovery gfs2_recover_func
[  306.953595][   T28] Call Trace:
[  306.956937][   T28]  <TASK>
[  306.962716][   T28]  __schedule+0x11d1/0x40e0
[  306.967321][   T28]  ? schedule_preempt_disabled+0x20/0x20
[  306.973328][   T28]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  306.981749][   T28]  ? __sched_text_start+0x8/0x8
[  306.986732][   T28]  ? lock_chain_count+0x20/0x20
[  306.991975][   T28]  schedule+0xb9/0x180
[  306.996112][   T28]  io_schedule+0x7c/0xd0
[  307.002886][   T28]  folio_wait_bit_common+0x70a/0xfa0
[  307.008254][   T28]  ? folio_wait_bit+0x30/0x30
[  307.013414][   T28]  ? migration_entry_wait_on_locked+0xe90/0xe90
[  307.022650][   T28]  ? __submit_bio+0x1a7/0x290
[  307.027506][   T28]  gfs2_jhead_process_page+0x17a/0x800
[  307.034007][   T28]  ? should_fail_request+0x70/0x70
[  307.041577][   T28]  ? gfs2_end_log_read+0x780/0x780
[  307.046785][   T28]  gfs2_find_jhead+0xba2/0xd00
[  307.051977][   T28]  gfs2_recover_func+0x6d2/0x1ca0
[  307.057144][   T28]  ? __get_log_header+0x4f0/0x4f0
[  307.065445][   T28]  ? __lock_acquire+0x13cf/0x7d10
[  307.070888][   T28]  ? verify_lock_unused+0x140/0x140
[  307.076201][   T28]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  307.082610][   T28]  ? _raw_spin_unlock+0x40/0x40
[  307.087547][   T28]  ? _raw_spin_unlock_irq+0x1f/0x40
[  307.093149][   T28]  ? process_one_work+0x7b0/0x1160
[  307.098344][   T28]  process_one_work+0x8a2/0x1160
[  307.103671][   T28]  ? worker_detach_from_pool+0x240/0x240
[  307.109694][   T28]  ? _raw_spin_lock_irq+0xb7/0xf0
[  307.114792][   T28]  ? _raw_spin_lock_irqsave+0x100/0x100
[  307.120727][   T28]  ? kthread_data+0x4b/0xc0
[  307.125478][   T28]  worker_thread+0xaa2/0x1270
[  307.130558][   T28]  ? __kthread_parkme+0x162/0x1c0
[  307.136001][   T28]  kthread+0x29d/0x330
[  307.142548][   T28]  ? worker_clr_flags+0x1a0/0x1a0
[  307.147641][   T28]  ? kthread_blkcg+0xd0/0xd0
[  307.152772][   T28]  ret_from_fork+0x1f/0x30
[  307.157286][   T28]  </TASK>
[  307.162964][   T28] INFO: task syz.0.17:4434 blocked for more than 143 seconds.
[  307.172512][   T28]       Not tainted syzkaller #0
[  307.177531][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  307.188941][   T28] task:syz.0.17        state:D stack:24784 pid:4434  ppid:4387   flags:0x00004004
[  307.198232][   T28] Call Trace:
[  307.203088][   T28]  <TASK>
[  307.206087][   T28]  __schedule+0x11d1/0x40e0
[  307.212072][   T28]  ? preempt_schedule+0xbc/0xd0
[  307.216999][   T28]  ? lock_chain_count+0x20/0x20
[  307.223326][   T28]  ? __sched_text_start+0x8/0x8
[  307.228257][   T28]  ? _raw_spin_unlock_irqrestore+0x10d/0x120
[  307.236619][   T28]  ? _raw_spin_unlock+0x40/0x40
[  307.242899][   T28]  schedule+0xb9/0x180
[  307.247086][   T28]  bit_wait+0xd/0xc0
[  307.252475][   T28]  __wait_on_bit+0xa8/0x2d0
[  307.257054][   T28]  ? out_of_line_wait_on_bit_lock+0x190/0x190
[  307.264644][   T28]  out_of_line_wait_on_bit+0x138/0x190
[  307.271557][   T28]  ? out_of_line_wait_on_bit_lock+0x190/0x190
[  307.277693][   T28]  ? __wait_on_bit+0x2d0/0x2d0
[  307.283775][   T28]  ? bit_waitqueue+0x30/0x30
[  307.292947][   T28]  ? do_raw_spin_unlock+0x11d/0x230
[  307.298256][   T28]  gfs2_recover_journal+0xd6/0x130
[  307.305895][   T28]  init_journal+0x17fc/0x23e0
[  307.315195][   T28]  ? init_inodes+0xdb/0x320
[  307.322196][   T28]  ? _compound_head+0x120/0x120
[  307.327149][   T28]  ? snprintf+0xe5/0x140
[  307.331837][   T28]  ? init_inodes+0xdb/0x320
[  307.336401][   T28]  ? vscnprintf+0x80/0x80
[  307.344001][   T28]  ? gfs2_glock_nq_num+0x17f/0x1c0
[  307.349415][   T28]  init_inodes+0xdb/0x320
[  307.353827][   T28]  gfs2_fill_super+0x1749/0x1fb0
[  307.361465][   T28]  ? gfs2_reconfigure+0xd30/0xd30
[  307.366597][   T28]  ? init_locking+0xb8/0x200
[  307.371635][   T28]  ? sb_set_blocksize+0xa5/0xe0
[  307.376557][   T28]  get_tree_bdev+0x3f1/0x610
[  307.383769][   T28]  ? gfs2_reconfigure+0xd30/0xd30
[  307.391182][   T28]  gfs2_get_tree+0x4d/0x1e0
[  307.395778][   T28]  vfs_get_tree+0x88/0x270
[  307.401171][   T28]  do_new_mount+0x24a/0xa40
[  307.405751][   T28]  __se_sys_mount+0x2e3/0x3d0
[  307.410822][   T28]  ? __x64_sys_mount+0xc0/0xc0
[  307.415655][   T28]  ? lockdep_hardirqs_on+0x94/0x140
[  307.421208][   T28]  ? __x64_sys_mount+0x1c/0xc0
[  307.426036][   T28]  do_syscall_64+0x4c/0xa0
[  307.430843][   T28]  ? clear_bhb_loop+0x60/0xb0
[  307.435603][   T28]  ? clear_bhb_loop+0x60/0xb0
[  307.441335][   T28]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  307.447314][   T28] RIP: 0033:0x7fb77d79e04a
[  307.452114][   T28] RSP: 002b:00007ffdfe2c21e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  307.460856][   T28] RAX: ffffffffffffffda RBX: 00007ffdfe2c2270 RCX: 00007fb77d79e04a
[  307.469106][   T28] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffdfe2c2230
[  307.477129][   T28] RBP: 0000200000037f40 R08: 00007ffdfe2c2270 R09: 0000000001010084
[  307.485463][   T28] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  307.493714][   T28] R13: 00007ffdfe2c2230 R14: 0000000000037f45 R15: 0000200000000480
[  307.503583][   T28]  </TASK>
[  307.506751][   T28] 
[  307.506751][   T28] Showing all locks held in the system:
[  307.515034][   T28] 1 lock held by rcu_tasks_kthre/12:
[  307.523174][   T28]  #0: ffffffff8cb2df70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[  307.534468][   T28] 1 lock held by rcu_tasks_trace/13:
[  307.542218][   T28]  #0: ffffffff8cb2e790 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[  307.553858][   T28] 1 lock held by khungtaskd/28:
[  307.558766][   T28]  #0: ffffffff8cb2d5e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290
[  307.571613][   T28] 2 locks held by getty/4033:
[  307.572854][ T4666] loop1: detected capacity change from 0 to 32768
[  307.576327][   T28]  #0: ffff888030364098 (&tty->ldisc_sem){++++}-{0:0}
[  307.584407][ T4666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[  307.598895][ T4666] CPU: 1 PID: 4666 Comm: syz.1.219 Not tainted syzkaller #0
[  307.606241][ T4666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  307.608949][   T28] , at: tty_ldisc_ref_wait+0x21/0x70
[  307.616326][ T4666] Call Trace:
[  307.624976][ T4666]  <TASK>
[  307.627949][ T4666]  dump_stack_lvl+0x188/0x24e
[  307.632699][ T4666]  ? show_regs_print_info+0x12/0x12
[  307.637968][ T4666]  ? load_image+0x400/0x400
[  307.641064][   T28]  #1: ffffc9000327b2f0
[  307.642519][ T4666]  sysfs_create_dir_ns+0x26a/0x290
[  307.642537][   T28]  (
[  307.651872][ T4666]  ? sysfs_warn_dup+0xa0/0xa0
[  307.657761][   T28] &ldata->atomic_read_lock
[  307.659143][ T4666]  ? do_raw_spin_unlock+0x11d/0x230
[  307.659174][ T4666]  kobject_add_internal+0x61c/0xcc0
[  307.659209][ T4666]  kobject_init_and_add+0x128/0x190
[  307.659235][ T4666]  ? lockdep_softirqs_off+0x430/0x430
[  307.659270][ T4666]  ? kobject_add+0x230/0x230
[  307.659301][ T4666]  ? __init_swait_queue_head+0xa5/0x150
[  307.659335][ T4666]  gfs2_sys_fs_add+0x24f/0x4b0
[  307.682983][   T28] ){+.+.}-{3:3}
[  307.684812][ T4666]  ? gfs2_recover_set+0x240/0x240
[  307.695868][   T28] , at: n_tty_read+0x429/0x1390
[  307.699774][ T4666]  ? snprintf+0xe5/0x140
[  307.699808][ T4666]  ? vscnprintf+0x80/0x80
[  307.699875][ T4666]  gfs2_fill_super+0x128c/0x1fb0
[  307.708123][   T28] 2 locks held by kworker/0:10/4364:
[  307.708363][ T4666]  ? gfs2_reconfigure+0xd30/0xd30
[  307.725969][   T28]  #0: 
[  307.726767][ T4666]  ? sb_set_blocksize+0xa5/0xe0
[  307.739122][   T28] ffff88801afda538
[  307.739905][ T4666]  get_tree_bdev+0x3f1/0x610
[  307.744761][   T28]  ((wq_completion)gfs_recovery
[  307.748495][ T4666]  ? gfs2_reconfigure+0xd30/0xd30
[  307.748524][ T4666]  gfs2_get_tree+0x4d/0x1e0
[  307.748551][ T4666]  vfs_get_tree+0x88/0x270
[  307.748579][ T4666]  do_new_mount+0x24a/0xa40
[  307.748612][ T4666]  __se_sys_mount+0x2e3/0x3d0
[  307.748642][ T4666]  ? __x64_sys_mount+0xc0/0xc0
[  307.748669][ T4666]  ? lockdep_hardirqs_on+0x94/0x140
[  307.748693][ T4666]  ? __x64_sys_mount+0x1c/0xc0
[  307.748721][ T4666]  do_syscall_64+0x4c/0xa0
[  307.778963][   T28] ){+.+.}-{0:0}
[  307.781417][ T4666]  ? clear_bhb_loop+0x60/0xb0
[  307.786191][   T28] , at: process_one_work+0x7b0/0x1160
[  307.791391][ T4666]  ? clear_bhb_loop+0x60/0xb0
[  307.791424][ T4666]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  307.791453][ T4666] RIP: 0033:0x7f2bc3f9e04a
[  307.822887][   T28]  #1: 
[  307.824781][ T4666] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  307.824806][ T4666] RSP: 002b:00007ffd8158a0e8 EFLAGS: 00000246
[  307.833674][   T28] ffffc90003297d00
[  307.851626][ T4666]  ORIG_RAX: 00000000000000a5
[  307.851639][ T4666] RAX: ffffffffffffffda RBX: 00007ffd8158a170 RCX: 00007f2bc3f9e04a
[  307.851656][ T4666] RDX: 0000200000037f40 RSI: 00002000000008c0 RDI: 00007ffd8158a130
[  307.851673][ T4666] RBP: 0000200000037f40 R08: 00007ffd8158a170 R09: 0000000001010084
[  307.851689][ T4666] R10: 0000000001010084 R11: 0000000000000246 R12: 00002000000008c0
[  307.851704][ T4666] R13: 00007ffd8158a130 R14: 0000000000037f45 R15: 0000200000000480
[  307.851735][ T4666]  </TASK>
[  307.884358][ T4666] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[  307.894715][   T28]  (
[  307.905562][ T4666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[  307.909891][   T28] (work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160
[  307.943875][   T28] 3 locks held by kworker/u4:6/4429:
[  307.950427][   T28] 1 lock held by syz.0.17/4434:
[  307.978891][   T28]  #0: ffff88802747c0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930
[  308.002312][   T28] 1 lock held by udevd/4437:
[  308.006990][   T28] 4 locks held by syz.1.220/4668:
[  308.018896][   T28] 
[  308.021388][   T28] =============================================
[  308.021388][   T28] 
[  308.038954][   T28] NMI backtrace for cpu 0
[  308.043338][   T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted syzkaller #0
[  308.050579][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  308.060682][   T28] Call Trace:
[  308.064008][   T28]  <TASK>
[  308.066975][   T28]  dump_stack_lvl+0x188/0x24e
[  308.071826][   T28]  ? preempt_schedule_thunk+0x16/0x18
[  308.077298][   T28]  ? show_regs_print_info+0x12/0x12
[  308.082565][   T28]  ? load_image+0x400/0x400
[  308.087139][   T28]  ? vprintk_emit+0x59f/0x6a0
[  308.091877][   T28]  ? printk_sprint+0x460/0x460
[  308.096713][   T28]  nmi_cpu_backtrace+0x3e6/0x460
[  308.101803][   T28]  ? nmi_trigger_cpumask_backtrace+0x450/0x450
[  308.108004][   T28]  ? _printk+0xda/0x130
[  308.112191][   T28]  ? load_image+0x400/0x400
[  308.116730][   T28]  ? load_image+0x400/0x400
[  308.121270][   T28]  ? nmi_trigger_cpumask_backtrace+0xf3/0x450
[  308.127390][   T28]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  308.133490][   T28]  nmi_trigger_cpumask_backtrace+0x1d4/0x450
[  308.139512][   T28]  watchdog+0xeee/0xf30
[  308.143720][   T28]  ? watchdog+0x1ed/0xf30
[  308.148093][   T28]  kthread+0x29d/0x330
[  308.152278][   T28]  ? hungtask_pm_notify+0x40/0x40
[  308.157336][   T28]  ? kthread_blkcg+0xd0/0xd0
[  308.161971][   T28]  ret_from_fork+0x1f/0x30
[  308.166433][   T28]  </TASK>
[  308.169966][   T28] Sending NMI from CPU 0 to CPUs 1:
[  308.175251][    C1] NMI backtrace for cpu 1
[  308.175262][    C1] CPU: 1 PID: 4394 Comm: kworker/u4:5 Not tainted syzkaller #0
[  308.175282][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  308.175294][    C1] Workqueue: events_unbound nsim_dev_trap_report_work
[  308.175325][    C1] RIP: 0010:kasan_check_range+0x84/0x290
[  308.175356][    C1] Code: 49 c1 e9 03 4b 8d 1c 21 49 89 df 4d 29 df 49 83 ff 10 7f 29 4d 85 ff 0f 84 38 01 00 00 4c 89 cb 48 f7 d3 4c 01 f3 41 80 3b 00 <0f> 85 86 01 00 00 49 ff c3 48 ff c3 75 ee e9 18 01 00 00 44 89 dd
[  308.175371][    C1] RSP: 0000:ffffc900033671f0 EFLAGS: 00000046
[  308.175386][    C1] RAX: 0000000000000001 RBX: ffffffffffffffff RCX: ffffffff816455ff
[  308.175400][    C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90af9240
[  308.175413][    C1] RBP: ffffc90003367470 R08: ffffffff90af9247 R09: 1ffffffff215f248
[  308.175433][    C1] R10: dffffc0000000000 R11: fffffbfff215f248 R12: dffffc0000000001
[  308.175448][    C1] R13: 00000000305c4f37 R14: 1ffffffff215f248 R15: 0000000000000001
[  308.175461][    C1] FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
[  308.175478][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  308.175491][    C1] CR2: 00007f2bbb562000 CR3: 000000000c88e000 CR4: 00000000003506e0
[  308.175508][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  308.175520][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  308.175532][    C1] Call Trace:
[  308.175538][    C1]  <TASK>
[  308.175547][    C1]  __lock_acquire+0x13cf/0x7d10
[  308.175583][    C1]  ? __lock_acquire+0x12f4/0x7d10
[  308.175609][    C1]  ? verify_lock_unused+0x140/0x140
[  308.175639][    C1]  ? arch_stack_walk+0x10c/0x140
[  308.175665][    C1]  lock_acquire+0x1bb/0x4a0
[  308.175690][    C1]  ? bad_range+0x7a/0x2d0
[  308.175711][    C1]  ? read_lock_is_recursive+0x10/0x10
[  308.175738][    C1]  ? deref_stack_reg+0x19f/0x230
[  308.175761][    C1]  ? bad_range+0x7a/0x2d0
[  308.175777][    C1]  seqcount_lockdep_reader_access+0xf2/0x190
[  308.175797][    C1]  ? bad_range+0x7a/0x2d0
[  308.175813][    C1]  ? bad_range+0x2d0/0x2d0
[  308.175830][    C1]  ? get_page_from_freelist+0x7d3/0x1ab0
[  308.175859][    C1]  ? __lock_acquire+0x7d10/0x7d10
[  308.175886][    C1]  bad_range+0x7a/0x2d0
[  308.175906][    C1]  get_page_from_freelist+0x1a02/0x1ab0
[  308.175937][    C1]  ? verify_lock_unused+0x140/0x140
[  308.175965][    C1]  ? __next_zones_zonelist+0x99/0x120
[  308.175989][    C1]  __alloc_pages+0x1ec/0x4f0
[  308.176016][    C1]  ? zone_statistics+0x170/0x170
[  308.176049][    C1]  alloc_slab_page+0x5d/0x160
[  308.176072][    C1]  new_slab+0x87/0x2c0
[  308.176094][    C1]  ___slab_alloc+0xbc6/0x1240
[  308.176116][    C1]  ? __alloc_skb+0xfc/0x7e0
[  308.176145][    C1]  kmem_cache_alloc_node+0x1e5/0x320
[  308.176167][    C1]  ? __alloc_skb+0xfc/0x7e0
[  308.176194][    C1]  __alloc_skb+0xfc/0x7e0
[  308.176218][    C1]  ? kmem_cache_free+0xf7/0x290
[  308.176240][    C1]  nsim_dev_trap_report_work+0x28f/0xaf0
[  308.176273][    C1]  ? process_one_work+0x7b0/0x1160
[  308.176295][    C1]  process_one_work+0x8a2/0x1160
[  308.176322][    C1]  ? worker_detach_from_pool+0x240/0x240
[  308.176345][    C1]  ? _raw_spin_lock_irq+0xb7/0xf0
[  308.176366][    C1]  ? _raw_spin_lock_irqsave+0x100/0x100
[  308.176387][    C1]  ? kthread_data+0x4b/0xc0
[  308.176415][    C1]  worker_thread+0xaa2/0x1270
[  308.176452][    C1]  kthread+0x29d/0x330
[  308.176467][    C1]  ? worker_clr_flags+0x1a0/0x1a0
[  308.176488][    C1]  ? kthread_blkcg+0xd0/0xd0
[  308.176504][    C1]  ret_from_fork+0x1f/0x30
[  308.176535][    C1]  </TASK>
[  308.523965][   T28] Kernel panic - not syncing: hung_task: blocked tasks
[  308.530872][   T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted syzkaller #0
[  308.538111][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  308.548205][   T28] Call Trace:
[  308.551531][   T28]  <TASK>
[  308.554513][   T28]  dump_stack_lvl+0x188/0x24e
[  308.559248][   T28]  ? memcpy+0x3c/0x60
[  308.563274][   T28]  ? show_regs_print_info+0x12/0x12
[  308.568524][   T28]  ? load_image+0x400/0x400
[  308.573094][   T28]  panic+0x2e5/0x730
[  308.577041][   T28]  ? schedule_preempt_disabled+0x20/0x20
[  308.582737][   T28]  ? bpf_jit_dump+0xd0/0xd0
[  308.587293][   T28]  ? __irq_work_queue_local+0x12c/0x190
[  308.592896][   T28]  ? nmi_trigger_cpumask_backtrace+0x35b/0x450
[  308.599110][   T28]  ? nmi_trigger_cpumask_backtrace+0x360/0x450
[  308.605320][   T28]  watchdog+0xf2d/0xf30
[  308.609525][   T28]  ? watchdog+0x1ed/0xf30
[  308.613910][   T28]  kthread+0x29d/0x330
[  308.618015][   T28]  ? hungtask_pm_notify+0x40/0x40
[  308.623093][   T28]  ? kthread_blkcg+0xd0/0xd0
[  308.627744][   T28]  ret_from_fork+0x1f/0x30
[  308.632221][   T28]  </TASK>
[  308.635855][   T28] Kernel Offset: disabled
[  308.640201][   T28] Rebooting in 86400 seconds..