Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 81.080890] FAULT_INJECTION: forcing a failure. [ 81.080890] name failslab, interval 1, probability 0, space 0, times 1 [ 81.092339] CPU: 0 PID: 8105 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 81.100250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 81.109598] Call Trace: [ 81.112174] dump_stack+0x1fc/0x2ef [ 81.115788] should_fail.cold+0xa/0xf [ 81.119579] ? setup_fault_attr+0x200/0x200 [ 81.123888] ? lock_acquire+0x170/0x3c0 [ 81.127850] __should_failslab+0x115/0x180 [ 81.132074] should_failslab+0x5/0x10 [ 81.135860] kmem_cache_alloc+0x277/0x370 [ 81.139994] __d_alloc+0x2b/0xa10 [ 81.143434] d_alloc+0x4a/0x230 [ 81.146701] d_alloc_parallel+0xeb/0x19e0 [ 81.150853] ? mark_held_locks+0xf0/0xf0 [ 81.154899] ? __d_lookup_rcu+0x6b0/0x6b0 [ 81.159030] ? device_add+0xbf8/0x16d0 [ 81.162912] ? mark_held_locks+0xf0/0xf0 [ 81.166961] ? __lockdep_init_map+0x100/0x5a0 [ 81.171440] ? __lockdep_init_map+0x100/0x5a0 [ 81.175923] __lookup_slow+0x18d/0x4a0 [ 81.179798] ? check_preemption_disabled+0x41/0x280 [ 81.184810] ? follow_dotdot_rcu+0x1040/0x1040 [ 81.189389] ? __d_lookup+0x411/0x710 [ 81.193177] ? d_lookup+0x18e/0x250 [ 81.196792] lookup_one_len+0x163/0x190 [ 81.200750] ? try_lookup_one_len+0x180/0x180 [ 81.205234] start_creating+0xc9/0x220 [ 81.209107] debugfs_create_dir+0x1f/0x440 [ 81.213336] bdi_register_va.part.0+0x1f7/0x750 [ 81.218001] bdi_register+0x12a/0x140 [ 81.221785] ? bdi_register_va+0x80/0x80 [ 81.225833] ? vsnprintf+0x2cc/0x14f0 [ 81.229620] bdi_register_owner+0x59/0x100 [ 81.233837] __device_add_disk+0xd58/0x10c0 [ 81.238153] ? sprintf+0xc0/0x100 [ 81.241590] ? blk_alloc_devt+0x2d0/0x2d0 [ 81.245731] ? __raw_spin_lock_init+0x28/0x100 [ 81.250300] ? __lockdep_init_map+0x100/0x5a0 [ 81.254784] loop_add+0x628/0x8a0 [ 81.258223] loop_control_ioctl+0x16c/0x480 [ 81.262527] ? loop_lookup+0x1d0/0x1d0 [ 81.266398] ? __vfs_write+0xff/0x770 [ 81.270278] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 81.275191] ? common_file_perm+0x4e5/0x850 [ 81.279495] ? loop_lookup+0x1d0/0x1d0 [ 81.283368] do_vfs_ioctl+0xcdb/0x12e0 [ 81.287244] ? vfs_write+0x3d7/0x540 [ 81.290942] ? ioctl_preallocate+0x200/0x200 [ 81.295336] ? lock_downgrade+0x720/0x720 [ 81.299471] ? check_preemption_disabled+0x41/0x280 [ 81.304472] ? vfs_write+0x393/0x540 [ 81.308169] ? ksys_write+0x1c8/0x2a0 [ 81.311955] ksys_ioctl+0x9b/0xc0 [ 81.315399] __x64_sys_ioctl+0x6f/0xb0 [ 81.319273] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 81.323837] do_syscall_64+0xf9/0x620 [ 81.327623] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.332806] RIP: 0033:0x7f06838f9079 [ 81.336512] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 81.355398] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 81.363093] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 81.370346] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 81.377600] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 81.384854] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 81.392104] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 81.439678] FAULT_INJECTION: forcing a failure. [ 81.439678] name failslab, interval 1, probability 0, space 0, times 0 [ 81.451360] CPU: 0 PID: 8113 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 81.459230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 81.468562] Call Trace: [ 81.471136] dump_stack+0x1fc/0x2ef [ 81.474754] should_fail.cold+0xa/0xf [ 81.478539] ? setup_fault_attr+0x200/0x200 [ 81.482845] ? lock_acquire+0x170/0x3c0 [ 81.486803] __should_failslab+0x115/0x180 [ 81.491020] should_failslab+0x5/0x10 [ 81.494802] kmem_cache_alloc+0x277/0x370 [ 81.498937] alloc_inode+0xab/0x180 [ 81.502547] new_inode+0x1d/0xf0 [ 81.505897] debugfs_get_inode+0x1a/0x130 [ 81.510026] debugfs_create_dir+0x73/0x440 [ 81.514244] bdi_register_va.part.0+0x1f7/0x750 [ 81.518897] bdi_register+0x12a/0x140 [ 81.522681] ? bdi_register_va+0x80/0x80 [ 81.526731] ? vsnprintf+0x2cc/0x14f0 [ 81.530518] bdi_register_owner+0x59/0x100 [ 81.534824] __device_add_disk+0xd58/0x10c0 [ 81.539129] ? sprintf+0xc0/0x100 [ 81.542567] ? blk_alloc_devt+0x2d0/0x2d0 [ 81.546701] ? __raw_spin_lock_init+0x28/0x100 [ 81.551268] ? __lockdep_init_map+0x100/0x5a0 [ 81.555748] loop_add+0x628/0x8a0 [ 81.559185] loop_control_ioctl+0x16c/0x480 [ 81.563494] ? loop_lookup+0x1d0/0x1d0 [ 81.567371] ? __vfs_write+0xff/0x770 [ 81.571153] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 81.576063] ? common_file_perm+0x4e5/0x850 [ 81.580371] ? loop_lookup+0x1d0/0x1d0 [ 81.584241] do_vfs_ioctl+0xcdb/0x12e0 [ 81.588110] ? vfs_write+0x3d7/0x540 [ 81.591806] ? ioctl_preallocate+0x200/0x200 [ 81.596197] ? lock_downgrade+0x720/0x720 [ 81.600331] ? check_preemption_disabled+0x41/0x280 [ 81.605332] ? vfs_write+0x393/0x540 [ 81.609032] ? ksys_write+0x1c8/0x2a0 [ 81.612817] ksys_ioctl+0x9b/0xc0 [ 81.616252] __x64_sys_ioctl+0x6f/0xb0 [ 81.620120] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 81.624689] do_syscall_64+0xf9/0x620 [ 81.628475] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.633644] RIP: 0033:0x7f06838f9079 [ 81.637340] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 81.656254] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 81.663943] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 81.671192] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 81.678444] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 81.685700] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 81.692988] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 81.739649] FAULT_INJECTION: forcing a failure. [ 81.739649] name failslab, interval 1, probability 0, space 0, times 0 [ 81.751160] CPU: 1 PID: 8122 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 81.759028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 81.768361] Call Trace: [ 81.770936] dump_stack+0x1fc/0x2ef [ 81.774549] should_fail.cold+0xa/0xf [ 81.778337] ? setup_fault_attr+0x200/0x200 [ 81.782643] ? lock_acquire+0x170/0x3c0 [ 81.786603] __should_failslab+0x115/0x180 [ 81.790822] should_failslab+0x5/0x10 [ 81.794616] kmem_cache_alloc+0x277/0x370 [ 81.798836] __d_alloc+0x2b/0xa10 [ 81.802274] d_alloc+0x4a/0x230 [ 81.805547] d_alloc_parallel+0xeb/0x19e0 [ 81.809686] ? mark_held_locks+0xf0/0xf0 [ 81.813732] ? __d_lookup_rcu+0x6b0/0x6b0 [ 81.817867] ? device_add+0xbf8/0x16d0 [ 81.821745] ? mark_held_locks+0xf0/0xf0 [ 81.825789] ? __lockdep_init_map+0x100/0x5a0 [ 81.830268] ? __lockdep_init_map+0x100/0x5a0 [ 81.834745] __lookup_slow+0x18d/0x4a0 [ 81.838619] ? check_preemption_disabled+0x41/0x280 [ 81.843615] ? follow_dotdot_rcu+0x1040/0x1040 [ 81.848180] ? __d_lookup+0x411/0x710 [ 81.851970] ? d_lookup+0x18e/0x250 [ 81.855580] lookup_one_len+0x163/0x190 [ 81.859540] ? try_lookup_one_len+0x180/0x180 [ 81.864022] start_creating+0xc9/0x220 [ 81.868254] debugfs_create_dir+0x1f/0x440 [ 81.872484] bdi_register_va.part.0+0x1f7/0x750 [ 81.877152] bdi_register+0x12a/0x140 [ 81.880939] ? bdi_register_va+0x80/0x80 [ 81.884988] ? vsnprintf+0x2cc/0x14f0 [ 81.888774] bdi_register_owner+0x59/0x100 [ 81.892992] __device_add_disk+0xd58/0x10c0 [ 81.897305] ? sprintf+0xc0/0x100 [ 81.900739] ? blk_alloc_devt+0x2d0/0x2d0 [ 81.904871] ? __raw_spin_lock_init+0x28/0x100 [ 81.909432] ? __lockdep_init_map+0x100/0x5a0 [ 81.913911] loop_add+0x628/0x8a0 [ 81.917348] loop_control_ioctl+0x16c/0x480 [ 81.921651] ? loop_lookup+0x1d0/0x1d0 [ 81.925519] ? __vfs_write+0xff/0x770 [ 81.929306] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 81.934327] ? common_file_perm+0x4e5/0x850 [ 81.938645] ? loop_lookup+0x1d0/0x1d0 [ 81.942522] do_vfs_ioctl+0xcdb/0x12e0 [ 81.946395] ? vfs_write+0x3d7/0x540 [ 81.950093] ? ioctl_preallocate+0x200/0x200 [ 81.954492] ? lock_downgrade+0x720/0x720 [ 81.958625] ? check_preemption_disabled+0x41/0x280 [ 81.963638] ? vfs_write+0x393/0x540 [ 81.967334] ? ksys_write+0x1c8/0x2a0 [ 81.971122] ksys_ioctl+0x9b/0xc0 [ 81.974562] __x64_sys_ioctl+0x6f/0xb0 [ 81.978450] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 81.983019] do_syscall_64+0xf9/0x620 [ 81.986807] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.991981] RIP: 0033:0x7f06838f9079 [ 81.995676] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 82.014557] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 82.022257] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 82.029505] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 82.036754] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 82.044005] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 82.051258] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 82.129695] FAULT_INJECTION: forcing a failure. [ 82.129695] name failslab, interval 1, probability 0, space 0, times 0 [ 82.141139] CPU: 0 PID: 8131 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 82.149008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 82.158341] Call Trace: [ 82.160912] dump_stack+0x1fc/0x2ef [ 82.164524] should_fail.cold+0xa/0xf [ 82.168306] ? setup_fault_attr+0x200/0x200 [ 82.172614] ? lock_acquire+0x170/0x3c0 [ 82.176573] __should_failslab+0x115/0x180 [ 82.180795] should_failslab+0x5/0x10 [ 82.184578] kmem_cache_alloc+0x277/0x370 [ 82.188709] alloc_inode+0xab/0x180 [ 82.192320] new_inode+0x1d/0xf0 [ 82.195668] debugfs_get_inode+0x1a/0x130 [ 82.199795] debugfs_create_dir+0x73/0x440 [ 82.204014] bdi_register_va.part.0+0x1f7/0x750 [ 82.208664] bdi_register+0x12a/0x140 [ 82.212479] ? bdi_register_va+0x80/0x80 [ 82.216525] ? vsnprintf+0x2cc/0x14f0 [ 82.220308] bdi_register_owner+0x59/0x100 [ 82.224523] __device_add_disk+0xd58/0x10c0 [ 82.228830] ? sprintf+0xc0/0x100 [ 82.232267] ? blk_alloc_devt+0x2d0/0x2d0 [ 82.236396] ? __raw_spin_lock_init+0x28/0x100 [ 82.240961] ? __lockdep_init_map+0x100/0x5a0 [ 82.245440] loop_add+0x628/0x8a0 [ 82.248878] loop_control_ioctl+0x16c/0x480 [ 82.253179] ? loop_lookup+0x1d0/0x1d0 [ 82.257049] ? __vfs_write+0xff/0x770 [ 82.260830] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 82.265741] ? common_file_perm+0x4e5/0x850 [ 82.270043] ? loop_lookup+0x1d0/0x1d0 [ 82.273912] do_vfs_ioctl+0xcdb/0x12e0 [ 82.277782] ? vfs_write+0x3d7/0x540 [ 82.281476] ? ioctl_preallocate+0x200/0x200 [ 82.285868] ? lock_downgrade+0x720/0x720 [ 82.289998] ? check_preemption_disabled+0x41/0x280 [ 82.294999] ? vfs_write+0x393/0x540 [ 82.298696] ? ksys_write+0x1c8/0x2a0 [ 82.302481] ksys_ioctl+0x9b/0xc0 [ 82.305915] __x64_sys_ioctl+0x6f/0xb0 [ 82.309789] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 82.314351] do_syscall_64+0xf9/0x620 [ 82.318134] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.323301] RIP: 0033:0x7f06838f9079 [ 82.326996] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 82.345876] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 82.353564] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 82.360812] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 82.368060] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 82.375312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 82.382566] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 82.412556] FAULT_INJECTION: forcing a failure. [ 82.412556] name failslab, interval 1, probability 0, space 0, times 0 [ 82.424148] CPU: 0 PID: 8139 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 82.432033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 82.441370] Call Trace: [ 82.443942] dump_stack+0x1fc/0x2ef [ 82.447556] should_fail.cold+0xa/0xf [ 82.451340] ? setup_fault_attr+0x200/0x200 [ 82.455641] ? lock_acquire+0x170/0x3c0 [ 82.459599] __should_failslab+0x115/0x180 [ 82.463818] should_failslab+0x5/0x10 [ 82.467597] kmem_cache_alloc+0x277/0x370 [ 82.471730] alloc_inode+0xab/0x180 [ 82.475335] new_inode+0x1d/0xf0 [ 82.478680] debugfs_get_inode+0x1a/0x130 [ 82.482811] debugfs_create_dir+0x73/0x440 [ 82.487031] bdi_register_va.part.0+0x1f7/0x750 [ 82.491680] bdi_register+0x12a/0x140 [ 82.495464] ? bdi_register_va+0x80/0x80 [ 82.499510] ? vsnprintf+0x2cc/0x14f0 [ 82.503296] bdi_register_owner+0x59/0x100 [ 82.507512] __device_add_disk+0xd58/0x10c0 [ 82.511815] ? sprintf+0xc0/0x100 [ 82.515249] ? blk_alloc_devt+0x2d0/0x2d0 [ 82.519381] ? __raw_spin_lock_init+0x28/0x100 [ 82.523945] ? __lockdep_init_map+0x100/0x5a0 [ 82.528424] loop_add+0x628/0x8a0 [ 82.531859] loop_control_ioctl+0x16c/0x480 [ 82.536163] ? loop_lookup+0x1d0/0x1d0 [ 82.540049] ? __vfs_write+0xff/0x770 [ 82.543831] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 82.548739] ? common_file_perm+0x4e5/0x850 [ 82.553041] ? loop_lookup+0x1d0/0x1d0 [ 82.556917] do_vfs_ioctl+0xcdb/0x12e0 [ 82.560786] ? vfs_write+0x3d7/0x540 [ 82.564481] ? ioctl_preallocate+0x200/0x200 [ 82.568870] ? lock_downgrade+0x720/0x720 [ 82.573087] ? check_preemption_disabled+0x41/0x280 [ 82.578171] ? vfs_write+0x393/0x540 [ 82.581871] ? ksys_write+0x1c8/0x2a0 [ 82.585652] ksys_ioctl+0x9b/0xc0 [ 82.589086] __x64_sys_ioctl+0x6f/0xb0 [ 82.592964] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 82.597527] do_syscall_64+0xf9/0x620 [ 82.601313] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.606482] RIP: 0033:0x7f06838f9079 [ 82.610177] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 executing program [ 82.629056] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 82.636745] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 82.643996] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 82.651243] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 82.658492] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 82.665740] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 82.709353] FAULT_INJECTION: forcing a failure. [ 82.709353] name failslab, interval 1, probability 0, space 0, times 0 [ 82.721116] CPU: 0 PID: 8146 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 82.728986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 82.738321] Call Trace: [ 82.740901] dump_stack+0x1fc/0x2ef [ 82.744513] should_fail.cold+0xa/0xf [ 82.748299] ? setup_fault_attr+0x200/0x200 [ 82.752601] ? lock_acquire+0x170/0x3c0 [ 82.756560] __should_failslab+0x115/0x180 [ 82.760780] should_failslab+0x5/0x10 [ 82.764564] kmem_cache_alloc+0x277/0x370 [ 82.768692] alloc_inode+0xab/0x180 [ 82.772299] new_inode+0x1d/0xf0 [ 82.775645] debugfs_get_inode+0x1a/0x130 [ 82.779776] debugfs_create_dir+0x73/0x440 [ 82.783994] bdi_register_va.part.0+0x1f7/0x750 [ 82.788643] bdi_register+0x12a/0x140 [ 82.792427] ? bdi_register_va+0x80/0x80 [ 82.796476] ? vsnprintf+0x2cc/0x14f0 [ 82.800261] bdi_register_owner+0x59/0x100 [ 82.804477] __device_add_disk+0xd58/0x10c0 [ 82.808784] ? sprintf+0xc0/0x100 [ 82.812218] ? blk_alloc_devt+0x2d0/0x2d0 [ 82.816351] ? __raw_spin_lock_init+0x28/0x100 [ 82.820922] ? __lockdep_init_map+0x100/0x5a0 [ 82.825406] loop_add+0x628/0x8a0 [ 82.828855] loop_control_ioctl+0x16c/0x480 [ 82.833156] ? loop_lookup+0x1d0/0x1d0 [ 82.837044] ? __vfs_write+0xff/0x770 [ 82.840834] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 82.845747] ? common_file_perm+0x4e5/0x850 [ 82.850053] ? loop_lookup+0x1d0/0x1d0 [ 82.853926] do_vfs_ioctl+0xcdb/0x12e0 [ 82.857801] ? vfs_write+0x3d7/0x540 [ 82.861499] ? ioctl_preallocate+0x200/0x200 [ 82.865893] ? lock_downgrade+0x720/0x720 [ 82.870031] ? check_preemption_disabled+0x41/0x280 [ 82.875034] ? vfs_write+0x393/0x540 [ 82.878730] ? ksys_write+0x1c8/0x2a0 [ 82.882518] ksys_ioctl+0x9b/0xc0 [ 82.885966] __x64_sys_ioctl+0x6f/0xb0 [ 82.889844] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 82.894410] do_syscall_64+0xf9/0x620 [ 82.898197] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.903376] RIP: 0033:0x7f06838f9079 [ 82.907072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 82.926045] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 82.933735] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 82.940984] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 82.948236] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 82.955494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 82.962743] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 83.029568] FAULT_INJECTION: forcing a failure. [ 83.029568] name failslab, interval 1, probability 0, space 0, times 0 [ 83.041478] CPU: 0 PID: 8157 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 83.049354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 83.058693] Call Trace: [ 83.061267] dump_stack+0x1fc/0x2ef [ 83.064879] should_fail.cold+0xa/0xf [ 83.068670] ? setup_fault_attr+0x200/0x200 [ 83.072986] ? lock_acquire+0x170/0x3c0 [ 83.076949] __should_failslab+0x115/0x180 [ 83.081178] should_failslab+0x5/0x10 [ 83.084962] kmem_cache_alloc+0x277/0x370 [ 83.089283] __d_alloc+0x2b/0xa10 [ 83.092723] d_alloc+0x4a/0x230 [ 83.096072] d_alloc_parallel+0xeb/0x19e0 [ 83.100233] ? mark_held_locks+0xf0/0xf0 [ 83.104280] ? __d_lookup_rcu+0x6b0/0x6b0 [ 83.108409] ? device_add+0xbf8/0x16d0 [ 83.112279] ? mark_held_locks+0xf0/0xf0 [ 83.116322] ? __lockdep_init_map+0x100/0x5a0 [ 83.120889] ? __lockdep_init_map+0x100/0x5a0 [ 83.125369] __lookup_slow+0x18d/0x4a0 [ 83.129243] ? check_preemption_disabled+0x41/0x280 [ 83.134243] ? follow_dotdot_rcu+0x1040/0x1040 [ 83.138853] ? __d_lookup+0x411/0x710 [ 83.142667] ? d_lookup+0x18e/0x250 [ 83.146278] lookup_one_len+0x163/0x190 [ 83.150238] ? try_lookup_one_len+0x180/0x180 [ 83.154719] start_creating+0xc9/0x220 [ 83.158589] debugfs_create_dir+0x1f/0x440 [ 83.162814] bdi_register_va.part.0+0x1f7/0x750 [ 83.167464] bdi_register+0x12a/0x140 [ 83.171247] ? bdi_register_va+0x80/0x80 [ 83.175295] ? vsnprintf+0x2cc/0x14f0 [ 83.179079] bdi_register_owner+0x59/0x100 [ 83.183296] __device_add_disk+0xd58/0x10c0 [ 83.187605] ? sprintf+0xc0/0x100 [ 83.191039] ? blk_alloc_devt+0x2d0/0x2d0 [ 83.195170] ? __raw_spin_lock_init+0x28/0x100 [ 83.199732] ? __lockdep_init_map+0x100/0x5a0 [ 83.204211] loop_add+0x628/0x8a0 [ 83.207649] loop_control_ioctl+0x16c/0x480 [ 83.211953] ? loop_lookup+0x1d0/0x1d0 [ 83.215825] ? __vfs_write+0xff/0x770 [ 83.219606] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 83.224516] ? common_file_perm+0x4e5/0x850 [ 83.228825] ? loop_lookup+0x1d0/0x1d0 [ 83.232698] do_vfs_ioctl+0xcdb/0x12e0 [ 83.236567] ? vfs_write+0x3d7/0x540 [ 83.240262] ? ioctl_preallocate+0x200/0x200 [ 83.244655] ? lock_downgrade+0x720/0x720 [ 83.248786] ? check_preemption_disabled+0x41/0x280 [ 83.253782] ? vfs_write+0x393/0x540 [ 83.257484] ? ksys_write+0x1c8/0x2a0 [ 83.261268] ksys_ioctl+0x9b/0xc0 [ 83.264704] __x64_sys_ioctl+0x6f/0xb0 [ 83.268573] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 83.273136] do_syscall_64+0xf9/0x620 [ 83.276922] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.282091] RIP: 0033:0x7f06838f9079 [ 83.285788] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 83.304670] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.312361] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 83.319612] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 83.326861] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 83.334111] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 83.341368] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 83.409290] FAULT_INJECTION: forcing a failure. [ 83.409290] name failslab, interval 1, probability 0, space 0, times 0 [ 83.421009] CPU: 1 PID: 8166 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 83.428877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 83.438211] Call Trace: [ 83.440783] dump_stack+0x1fc/0x2ef [ 83.444393] should_fail.cold+0xa/0xf [ 83.448189] ? setup_fault_attr+0x200/0x200 [ 83.452495] ? lock_acquire+0x170/0x3c0 [ 83.456461] __should_failslab+0x115/0x180 [ 83.460678] should_failslab+0x5/0x10 [ 83.464459] kmem_cache_alloc+0x277/0x370 [ 83.468588] alloc_inode+0xab/0x180 [ 83.472198] new_inode+0x1d/0xf0 [ 83.475545] debugfs_get_inode+0x1a/0x130 [ 83.479675] debugfs_create_dir+0x73/0x440 [ 83.483890] bdi_register_va.part.0+0x1f7/0x750 [ 83.488539] bdi_register+0x12a/0x140 [ 83.492319] ? bdi_register_va+0x80/0x80 [ 83.496368] ? vsnprintf+0x2cc/0x14f0 [ 83.500151] bdi_register_owner+0x59/0x100 [ 83.504366] __device_add_disk+0xd58/0x10c0 [ 83.508679] ? sprintf+0xc0/0x100 [ 83.512122] ? blk_alloc_devt+0x2d0/0x2d0 [ 83.516250] ? __raw_spin_lock_init+0x28/0x100 [ 83.520816] ? __lockdep_init_map+0x100/0x5a0 [ 83.525294] loop_add+0x628/0x8a0 [ 83.528727] loop_control_ioctl+0x16c/0x480 [ 83.533030] ? loop_lookup+0x1d0/0x1d0 [ 83.536902] ? __vfs_write+0xff/0x770 [ 83.540683] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 83.545591] ? common_file_perm+0x4e5/0x850 [ 83.549893] ? loop_lookup+0x1d0/0x1d0 [ 83.553762] do_vfs_ioctl+0xcdb/0x12e0 [ 83.557629] ? vfs_write+0x3d7/0x540 [ 83.561331] ? ioctl_preallocate+0x200/0x200 [ 83.565725] ? lock_downgrade+0x720/0x720 [ 83.569856] ? check_preemption_disabled+0x41/0x280 [ 83.574863] ? vfs_write+0x393/0x540 [ 83.578560] ? ksys_write+0x1c8/0x2a0 [ 83.582345] ksys_ioctl+0x9b/0xc0 [ 83.585780] __x64_sys_ioctl+0x6f/0xb0 [ 83.589736] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 83.594299] do_syscall_64+0xf9/0x620 [ 83.598085] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.603253] RIP: 0033:0x7f06838f9079 [ 83.606947] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 83.625828] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.633513] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 83.640760] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 83.648009] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 83.655262] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 83.662510] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 83.729828] FAULT_INJECTION: forcing a failure. [ 83.729828] name failslab, interval 1, probability 0, space 0, times 0 [ 83.741302] CPU: 0 PID: 8174 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 83.749168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 83.758504] Call Trace: [ 83.761078] dump_stack+0x1fc/0x2ef [ 83.764690] should_fail.cold+0xa/0xf [ 83.768480] ? setup_fault_attr+0x200/0x200 [ 83.772782] ? lock_acquire+0x170/0x3c0 [ 83.776742] __should_failslab+0x115/0x180 [ 83.781044] should_failslab+0x5/0x10 [ 83.784826] kmem_cache_alloc+0x277/0x370 [ 83.788956] alloc_inode+0xab/0x180 [ 83.792561] new_inode+0x1d/0xf0 [ 83.795910] debugfs_get_inode+0x1a/0x130 [ 83.800037] debugfs_create_dir+0x73/0x440 [ 83.804255] bdi_register_va.part.0+0x1f7/0x750 [ 83.808904] bdi_register+0x12a/0x140 [ 83.812685] ? bdi_register_va+0x80/0x80 [ 83.816731] ? vsnprintf+0x2cc/0x14f0 [ 83.820516] bdi_register_owner+0x59/0x100 [ 83.824733] __device_add_disk+0xd58/0x10c0 [ 83.829035] ? sprintf+0xc0/0x100 [ 83.832481] ? blk_alloc_devt+0x2d0/0x2d0 [ 83.836615] ? __raw_spin_lock_init+0x28/0x100 [ 83.841178] ? __lockdep_init_map+0x100/0x5a0 [ 83.845658] loop_add+0x628/0x8a0 [ 83.849095] loop_control_ioctl+0x16c/0x480 [ 83.853399] ? loop_lookup+0x1d0/0x1d0 [ 83.857271] ? __vfs_write+0xff/0x770 [ 83.861051] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 83.865961] ? common_file_perm+0x4e5/0x850 [ 83.870262] ? loop_lookup+0x1d0/0x1d0 [ 83.874128] do_vfs_ioctl+0xcdb/0x12e0 [ 83.877999] ? vfs_write+0x3d7/0x540 [ 83.881696] ? ioctl_preallocate+0x200/0x200 [ 83.886087] ? lock_downgrade+0x720/0x720 [ 83.890218] ? check_preemption_disabled+0x41/0x280 [ 83.895220] ? vfs_write+0x393/0x540 [ 83.898916] ? ksys_write+0x1c8/0x2a0 [ 83.902701] ksys_ioctl+0x9b/0xc0 [ 83.906136] __x64_sys_ioctl+0x6f/0xb0 [ 83.910002] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 83.914564] do_syscall_64+0xf9/0x620 [ 83.918348] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.923521] RIP: 0033:0x7f06838f9079 [ 83.927218] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 83.946097] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.953787] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 83.961037] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 83.968287] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 83.975535] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 83.982787] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 84.059267] FAULT_INJECTION: forcing a failure. [ 84.059267] name failslab, interval 1, probability 0, space 0, times 0 [ 84.071148] CPU: 0 PID: 8184 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 84.079023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 84.088359] Call Trace: [ 84.090935] dump_stack+0x1fc/0x2ef [ 84.094678] should_fail.cold+0xa/0xf [ 84.098485] ? setup_fault_attr+0x200/0x200 [ 84.102796] ? lock_acquire+0x170/0x3c0 [ 84.106764] __should_failslab+0x115/0x180 [ 84.110987] should_failslab+0x5/0x10 [ 84.114781] kmem_cache_alloc_trace+0x284/0x380 [ 84.119443] ? wait_for_completion_io+0x10/0x10 [ 84.124099] ? kobj_ns_initial+0x90/0x90 [ 84.128154] call_usermodehelper_setup+0x84/0x300 [ 84.132996] kobject_uevent_env+0xe83/0x1480 [ 84.137405] device_add+0xb2f/0x16d0 [ 84.141110] ? device_check_offline+0x280/0x280 [ 84.145771] ? kfree_const+0x51/0x60 [ 84.149472] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 84.154477] ? kfree+0x1e2/0x210 [ 84.157832] device_create_groups_vargs+0x1f4/0x270 [ 84.162841] device_create+0xdf/0x120 [ 84.166759] ? device_create_vargs+0x50/0x50 [ 84.171166] ? pointer+0x850/0x850 [ 84.174704] bdi_register_va.part.0+0x4c/0x750 [ 84.179269] bdi_register+0x12a/0x140 [ 84.183054] ? bdi_register_va+0x80/0x80 [ 84.187102] ? vsnprintf+0x2cc/0x14f0 [ 84.190886] bdi_register_owner+0x59/0x100 [ 84.195106] __device_add_disk+0xd58/0x10c0 [ 84.199412] ? sprintf+0xc0/0x100 [ 84.202845] ? blk_alloc_devt+0x2d0/0x2d0 [ 84.206992] ? __raw_spin_lock_init+0x28/0x100 [ 84.211563] ? __lockdep_init_map+0x100/0x5a0 [ 84.216043] loop_add+0x628/0x8a0 [ 84.219481] loop_control_ioctl+0x16c/0x480 [ 84.223784] ? loop_lookup+0x1d0/0x1d0 [ 84.227693] ? __vfs_write+0xff/0x770 [ 84.231479] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 84.236396] ? common_file_perm+0x4e5/0x850 [ 84.240713] ? loop_lookup+0x1d0/0x1d0 [ 84.244585] do_vfs_ioctl+0xcdb/0x12e0 [ 84.248467] ? vfs_write+0x3d7/0x540 [ 84.252169] ? ioctl_preallocate+0x200/0x200 [ 84.256577] ? lock_downgrade+0x720/0x720 [ 84.260712] ? check_preemption_disabled+0x41/0x280 [ 84.265716] ? vfs_write+0x393/0x540 [ 84.269427] ? ksys_write+0x1c8/0x2a0 [ 84.273228] ksys_ioctl+0x9b/0xc0 [ 84.276674] __x64_sys_ioctl+0x6f/0xb0 [ 84.280551] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 84.285118] do_syscall_64+0xf9/0x620 [ 84.288908] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.294081] RIP: 0033:0x7f06838f9079 [ 84.297777] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 84.316662] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 84.324443] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 84.331693] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 84.338947] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 84.346206] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 84.353457] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 executing program executing program executing program [ 84.409578] FAULT_INJECTION: forcing a failure. [ 84.409578] name failslab, interval 1, probability 0, space 0, times 0 [ 84.424009] CPU: 0 PID: 8194 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 84.431895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 84.441230] Call Trace: [ 84.443804] dump_stack+0x1fc/0x2ef [ 84.447425] should_fail.cold+0xa/0xf [ 84.451212] ? setup_fault_attr+0x200/0x200 [ 84.455517] ? lock_acquire+0x170/0x3c0 [ 84.459473] __should_failslab+0x115/0x180 [ 84.463691] should_failslab+0x5/0x10 [ 84.467472] kmem_cache_alloc+0x277/0x370 [ 84.471603] alloc_inode+0xab/0x180 [ 84.475209] new_inode+0x1d/0xf0 [ 84.478558] debugfs_get_inode+0x1a/0x130 [ 84.482686] debugfs_create_dir+0x73/0x440 [ 84.486928] bdi_register_va.part.0+0x1f7/0x750 [ 84.491580] bdi_register+0x12a/0x140 [ 84.495362] ? bdi_register_va+0x80/0x80 [ 84.499405] ? vsnprintf+0x2cc/0x14f0 [ 84.503187] bdi_register_owner+0x59/0x100 [ 84.507401] __device_add_disk+0xd58/0x10c0 [ 84.511702] ? sprintf+0xc0/0x100 [ 84.515132] ? blk_alloc_devt+0x2d0/0x2d0 [ 84.519260] ? __raw_spin_lock_init+0x28/0x100 [ 84.523818] ? __lockdep_init_map+0x100/0x5a0 [ 84.528292] loop_add+0x628/0x8a0 [ 84.531726] loop_control_ioctl+0x16c/0x480 [ 84.536025] ? loop_lookup+0x1d0/0x1d0 [ 84.539893] ? __vfs_write+0xff/0x770 [ 84.543674] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 84.548582] ? common_file_perm+0x4e5/0x850 [ 84.552887] ? loop_lookup+0x1d0/0x1d0 [ 84.556756] do_vfs_ioctl+0xcdb/0x12e0 [ 84.560624] ? vfs_write+0x3d7/0x540 [ 84.564316] ? ioctl_preallocate+0x200/0x200 [ 84.568703] ? lock_downgrade+0x720/0x720 [ 84.572835] ? check_preemption_disabled+0x41/0x280 [ 84.577869] ? vfs_write+0x393/0x540 [ 84.581569] ? ksys_write+0x1c8/0x2a0 [ 84.585352] ksys_ioctl+0x9b/0xc0 [ 84.588788] __x64_sys_ioctl+0x6f/0xb0 [ 84.592660] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 84.597219] do_syscall_64+0xf9/0x620 [ 84.601002] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.606168] RIP: 0033:0x7f06838f9079 [ 84.609860] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 84.628738] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 84.636425] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 84.643670] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 84.650918] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 84.658164] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 84.665413] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 84.739248] FAULT_INJECTION: forcing a failure. [ 84.739248] name failslab, interval 1, probability 0, space 0, times 0 [ 84.750829] CPU: 0 PID: 8205 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 84.758704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 84.768036] Call Trace: [ 84.770607] dump_stack+0x1fc/0x2ef [ 84.774215] should_fail.cold+0xa/0xf [ 84.777997] ? setup_fault_attr+0x200/0x200 [ 84.782296] ? lock_acquire+0x170/0x3c0 [ 84.786253] __should_failslab+0x115/0x180 [ 84.790467] should_failslab+0x5/0x10 [ 84.794245] kmem_cache_alloc+0x277/0x370 [ 84.798375] __d_alloc+0x2b/0xa10 [ 84.801816] ? lock_downgrade+0x720/0x720 [ 84.805943] ? lock_acquire+0x170/0x3c0 [ 84.809899] d_alloc+0x4a/0x230 [ 84.813161] d_alloc_parallel+0xeb/0x19e0 [ 84.817292] ? mark_held_locks+0xf0/0xf0 [ 84.821330] ? __lock_acquire+0x6de/0x3ff0 [ 84.825541] ? __d_lookup_rcu+0x6b0/0x6b0 [ 84.829666] ? mark_held_locks+0xf0/0xf0 [ 84.833707] ? mark_held_locks+0xf0/0xf0 [ 84.837750] ? __lockdep_init_map+0x100/0x5a0 [ 84.842235] ? __lockdep_init_map+0x100/0x5a0 [ 84.846714] __lookup_slow+0x18d/0x4a0 [ 84.850581] ? check_preemption_disabled+0x41/0x280 [ 84.855575] ? follow_dotdot_rcu+0x1040/0x1040 [ 84.860139] ? __d_lookup+0x411/0x710 [ 84.863932] ? d_lookup+0x18e/0x250 [ 84.867561] lookup_one_len+0x163/0x190 [ 84.871523] ? try_lookup_one_len+0x180/0x180 [ 84.876006] start_creating+0xc9/0x220 [ 84.879877] __debugfs_create_file+0x5e/0x480 [ 84.884354] bdi_register_va.part.0+0x24b/0x750 [ 84.889005] bdi_register+0x12a/0x140 [ 84.892787] ? bdi_register_va+0x80/0x80 [ 84.896830] ? vsnprintf+0x2cc/0x14f0 [ 84.900622] bdi_register_owner+0x59/0x100 [ 84.904841] __device_add_disk+0xd58/0x10c0 [ 84.909157] ? sprintf+0xc0/0x100 [ 84.912592] ? blk_alloc_devt+0x2d0/0x2d0 [ 84.916721] ? __raw_spin_lock_init+0x28/0x100 [ 84.921281] ? __lockdep_init_map+0x100/0x5a0 [ 84.925760] loop_add+0x628/0x8a0 [ 84.929194] loop_control_ioctl+0x16c/0x480 [ 84.933494] ? loop_lookup+0x1d0/0x1d0 [ 84.937369] ? __vfs_write+0xff/0x770 [ 84.941147] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 84.946053] ? common_file_perm+0x4e5/0x850 [ 84.950355] ? loop_lookup+0x1d0/0x1d0 [ 84.954221] do_vfs_ioctl+0xcdb/0x12e0 [ 84.958086] ? vfs_write+0x3d7/0x540 [ 84.961778] ? ioctl_preallocate+0x200/0x200 [ 84.966167] ? lock_downgrade+0x720/0x720 [ 84.970296] ? check_preemption_disabled+0x41/0x280 [ 84.975299] ? vfs_write+0x393/0x540 [ 84.978994] ? ksys_write+0x1c8/0x2a0 [ 84.982773] ksys_ioctl+0x9b/0xc0 [ 84.986205] __x64_sys_ioctl+0x6f/0xb0 [ 84.990072] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 84.994651] do_syscall_64+0xf9/0x620 [ 84.998437] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.003616] RIP: 0033:0x7f06838f9079 [ 85.007308] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 85.026188] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 85.033963] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 85.041212] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 85.048464] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 85.055858] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 85.063113] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 85.130364] FAULT_INJECTION: forcing a failure. [ 85.130364] name failslab, interval 1, probability 0, space 0, times 0 [ 85.142130] CPU: 0 PID: 8214 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 85.150004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 85.159333] Call Trace: [ 85.161902] dump_stack+0x1fc/0x2ef [ 85.165517] should_fail.cold+0xa/0xf [ 85.169309] ? setup_fault_attr+0x200/0x200 [ 85.173610] ? lock_acquire+0x170/0x3c0 [ 85.177571] __should_failslab+0x115/0x180 [ 85.181815] should_failslab+0x5/0x10 [ 85.185595] kmem_cache_alloc+0x277/0x370 [ 85.189723] alloc_inode+0xab/0x180 [ 85.193328] new_inode+0x1d/0xf0 [ 85.196681] debugfs_get_inode+0x1a/0x130 [ 85.200899] debugfs_create_dir+0x73/0x440 [ 85.205113] bdi_register_va.part.0+0x1f7/0x750 [ 85.209761] bdi_register+0x12a/0x140 [ 85.213539] ? bdi_register_va+0x80/0x80 [ 85.217580] ? vsnprintf+0x2cc/0x14f0 [ 85.221369] bdi_register_owner+0x59/0x100 [ 85.225594] __device_add_disk+0xd58/0x10c0 [ 85.229897] ? sprintf+0xc0/0x100 [ 85.233331] ? blk_alloc_devt+0x2d0/0x2d0 [ 85.237461] ? __raw_spin_lock_init+0x28/0x100 [ 85.242024] ? __lockdep_init_map+0x100/0x5a0 [ 85.246503] loop_add+0x628/0x8a0 [ 85.249946] loop_control_ioctl+0x16c/0x480 [ 85.254244] ? loop_lookup+0x1d0/0x1d0 [ 85.258119] ? __vfs_write+0xff/0x770 [ 85.261896] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 85.266815] ? common_file_perm+0x4e5/0x850 [ 85.271122] ? loop_lookup+0x1d0/0x1d0 [ 85.274993] do_vfs_ioctl+0xcdb/0x12e0 [ 85.278859] ? vfs_write+0x3d7/0x540 [ 85.282574] ? ioctl_preallocate+0x200/0x200 [ 85.286980] ? lock_downgrade+0x720/0x720 [ 85.291142] ? check_preemption_disabled+0x41/0x280 [ 85.296136] ? vfs_write+0x393/0x540 [ 85.299830] ? ksys_write+0x1c8/0x2a0 [ 85.303612] ksys_ioctl+0x9b/0xc0 [ 85.307045] __x64_sys_ioctl+0x6f/0xb0 [ 85.310914] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 85.315478] do_syscall_64+0xf9/0x620 [ 85.319260] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.324427] RIP: 0033:0x7f06838f9079 [ 85.328118] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 85.346998] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 85.354682] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 85.361927] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 85.369174] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 85.376420] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 85.383753] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 85.450789] FAULT_INJECTION: forcing a failure. [ 85.450789] name failslab, interval 1, probability 0, space 0, times 0 [ 85.462052] CPU: 0 PID: 8222 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 85.469925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 85.479259] Call Trace: [ 85.481857] dump_stack+0x1fc/0x2ef [ 85.485465] should_fail.cold+0xa/0xf [ 85.489254] ? setup_fault_attr+0x200/0x200 [ 85.493555] ? lock_acquire+0x170/0x3c0 [ 85.497510] __should_failslab+0x115/0x180 [ 85.501727] should_failslab+0x5/0x10 [ 85.505505] kmem_cache_alloc+0x277/0x370 [ 85.509634] __d_alloc+0x2b/0xa10 [ 85.513067] ? lock_downgrade+0x720/0x720 [ 85.517191] ? lock_acquire+0x170/0x3c0 [ 85.521144] d_alloc+0x4a/0x230 [ 85.524414] d_alloc_parallel+0xeb/0x19e0 [ 85.528545] ? mark_held_locks+0xf0/0xf0 [ 85.532587] ? __lock_acquire+0x6de/0x3ff0 [ 85.536808] ? __d_lookup_rcu+0x6b0/0x6b0 [ 85.540941] ? mark_held_locks+0xf0/0xf0 [ 85.544985] ? mark_held_locks+0xf0/0xf0 [ 85.549025] ? __lockdep_init_map+0x100/0x5a0 [ 85.553498] ? __lockdep_init_map+0x100/0x5a0 [ 85.557976] __lookup_slow+0x18d/0x4a0 [ 85.561843] ? check_preemption_disabled+0x41/0x280 [ 85.566839] ? follow_dotdot_rcu+0x1040/0x1040 [ 85.571401] ? __d_lookup+0x411/0x710 [ 85.575193] ? d_lookup+0x18e/0x250 [ 85.578803] lookup_one_len+0x163/0x190 [ 85.582759] ? try_lookup_one_len+0x180/0x180 [ 85.587244] start_creating+0xc9/0x220 [ 85.591110] __debugfs_create_file+0x5e/0x480 [ 85.595597] bdi_register_va.part.0+0x24b/0x750 [ 85.600258] bdi_register+0x12a/0x140 [ 85.604036] ? bdi_register_va+0x80/0x80 [ 85.608080] ? vsnprintf+0x2cc/0x14f0 [ 85.611863] bdi_register_owner+0x59/0x100 [ 85.616082] __device_add_disk+0xd58/0x10c0 [ 85.620385] ? sprintf+0xc0/0x100 [ 85.623825] ? blk_alloc_devt+0x2d0/0x2d0 [ 85.627953] ? __raw_spin_lock_init+0x28/0x100 [ 85.632517] ? __lockdep_init_map+0x100/0x5a0 [ 85.636993] loop_add+0x628/0x8a0 [ 85.640433] loop_control_ioctl+0x16c/0x480 [ 85.644734] ? loop_lookup+0x1d0/0x1d0 [ 85.648606] ? __vfs_write+0xff/0x770 [ 85.652386] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 85.657303] ? common_file_perm+0x4e5/0x850 [ 85.661601] ? loop_lookup+0x1d0/0x1d0 [ 85.665466] do_vfs_ioctl+0xcdb/0x12e0 [ 85.669332] ? vfs_write+0x3d7/0x540 [ 85.673024] ? ioctl_preallocate+0x200/0x200 [ 85.677412] ? lock_downgrade+0x720/0x720 [ 85.681542] ? check_preemption_disabled+0x41/0x280 [ 85.686541] ? vfs_write+0x393/0x540 [ 85.690240] ? ksys_write+0x1c8/0x2a0 [ 85.694020] ksys_ioctl+0x9b/0xc0 [ 85.697454] __x64_sys_ioctl+0x6f/0xb0 [ 85.701322] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 85.705884] do_syscall_64+0xf9/0x620 [ 85.709669] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.714836] RIP: 0033:0x7f06838f9079 [ 85.718527] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 85.737926] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 85.745613] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 85.752859] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 85.760105] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 85.767354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 85.774599] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 85.839836] FAULT_INJECTION: forcing a failure. [ 85.839836] name failslab, interval 1, probability 0, space 0, times 0 [ 85.851592] CPU: 0 PID: 8231 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 85.859465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 85.868847] Call Trace: [ 85.871421] dump_stack+0x1fc/0x2ef [ 85.875032] should_fail.cold+0xa/0xf [ 85.878816] ? setup_fault_attr+0x200/0x200 [ 85.883117] ? lock_acquire+0x170/0x3c0 [ 85.887083] __should_failslab+0x115/0x180 [ 85.891312] should_failslab+0x5/0x10 [ 85.895107] kmem_cache_alloc+0x277/0x370 [ 85.899244] alloc_inode+0xab/0x180 [ 85.902853] new_inode+0x1d/0xf0 [ 85.906200] debugfs_get_inode+0x1a/0x130 [ 85.910337] debugfs_create_dir+0x73/0x440 [ 85.914567] bdi_register_va.part.0+0x1f7/0x750 [ 85.919225] bdi_register+0x12a/0x140 [ 85.923014] ? bdi_register_va+0x80/0x80 [ 85.927060] ? vsnprintf+0x2cc/0x14f0 [ 85.930848] bdi_register_owner+0x59/0x100 [ 85.935066] __device_add_disk+0xd58/0x10c0 [ 85.939379] ? sprintf+0xc0/0x100 [ 85.942814] ? blk_alloc_devt+0x2d0/0x2d0 [ 85.946952] ? __raw_spin_lock_init+0x28/0x100 [ 85.951517] ? __lockdep_init_map+0x100/0x5a0 [ 85.955996] loop_add+0x628/0x8a0 [ 85.959433] loop_control_ioctl+0x16c/0x480 [ 85.963736] ? loop_lookup+0x1d0/0x1d0 [ 85.967628] ? __vfs_write+0xff/0x770 [ 85.971408] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 85.976318] ? common_file_perm+0x4e5/0x850 [ 85.980620] ? loop_lookup+0x1d0/0x1d0 [ 85.984488] do_vfs_ioctl+0xcdb/0x12e0 [ 85.988354] ? vfs_write+0x3d7/0x540 [ 85.992047] ? ioctl_preallocate+0x200/0x200 [ 85.996438] ? lock_downgrade+0x720/0x720 [ 86.000567] ? check_preemption_disabled+0x41/0x280 [ 86.005563] ? vfs_write+0x393/0x540 [ 86.009260] ? ksys_write+0x1c8/0x2a0 [ 86.013041] ksys_ioctl+0x9b/0xc0 [ 86.016474] __x64_sys_ioctl+0x6f/0xb0 [ 86.020344] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 86.024907] do_syscall_64+0xf9/0x620 [ 86.028693] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.033862] RIP: 0033:0x7f06838f9079 [ 86.037555] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 86.056434] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.064119] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 86.071366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 86.078625] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 86.085880] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 86.093133] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 86.149073] FAULT_INJECTION: forcing a failure. [ 86.149073] name failslab, interval 1, probability 0, space 0, times 0 [ 86.160558] CPU: 1 PID: 8239 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 86.168426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 86.177756] Call Trace: [ 86.180336] dump_stack+0x1fc/0x2ef [ 86.183943] should_fail.cold+0xa/0xf [ 86.187729] ? setup_fault_attr+0x200/0x200 [ 86.192038] ? lock_acquire+0x170/0x3c0 [ 86.195999] __should_failslab+0x115/0x180 [ 86.200214] should_failslab+0x5/0x10 [ 86.203994] kmem_cache_alloc+0x277/0x370 [ 86.208123] alloc_inode+0xab/0x180 [ 86.211737] new_inode+0x1d/0xf0 [ 86.215086] debugfs_get_inode+0x1a/0x130 [ 86.219211] debugfs_create_dir+0x73/0x440 [ 86.223424] bdi_register_va.part.0+0x1f7/0x750 [ 86.228074] bdi_register+0x12a/0x140 [ 86.231860] ? bdi_register_va+0x80/0x80 [ 86.235901] ? vsnprintf+0x2cc/0x14f0 [ 86.239685] bdi_register_owner+0x59/0x100 [ 86.243900] __device_add_disk+0xd58/0x10c0 [ 86.248201] ? sprintf+0xc0/0x100 [ 86.251635] ? blk_alloc_devt+0x2d0/0x2d0 [ 86.255765] ? __raw_spin_lock_init+0x28/0x100 [ 86.260324] ? __lockdep_init_map+0x100/0x5a0 [ 86.264798] loop_add+0x628/0x8a0 [ 86.268231] loop_control_ioctl+0x16c/0x480 [ 86.272531] ? loop_lookup+0x1d0/0x1d0 [ 86.276398] ? __vfs_write+0xff/0x770 [ 86.280178] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 86.285087] ? common_file_perm+0x4e5/0x850 [ 86.289389] ? loop_lookup+0x1d0/0x1d0 [ 86.293255] do_vfs_ioctl+0xcdb/0x12e0 [ 86.297124] ? vfs_write+0x3d7/0x540 [ 86.300817] ? ioctl_preallocate+0x200/0x200 [ 86.305208] ? lock_downgrade+0x720/0x720 [ 86.309338] ? check_preemption_disabled+0x41/0x280 [ 86.314338] ? vfs_write+0x393/0x540 [ 86.318031] ? ksys_write+0x1c8/0x2a0 [ 86.321809] ksys_ioctl+0x9b/0xc0 [ 86.325241] __x64_sys_ioctl+0x6f/0xb0 [ 86.329107] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 86.333669] do_syscall_64+0xf9/0x620 [ 86.337458] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.342633] RIP: 0033:0x7f06838f9079 [ 86.346325] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 86.365202] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.372974] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 86.380222] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 86.387468] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 86.394718] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 86.401971] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 86.449109] FAULT_INJECTION: forcing a failure. [ 86.449109] name failslab, interval 1, probability 0, space 0, times 0 [ 86.460646] CPU: 0 PID: 8248 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 86.468510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 86.477842] Call Trace: [ 86.480413] dump_stack+0x1fc/0x2ef [ 86.484022] should_fail.cold+0xa/0xf [ 86.487804] ? setup_fault_attr+0x200/0x200 [ 86.492111] ? lock_acquire+0x170/0x3c0 [ 86.496065] __should_failslab+0x115/0x180 [ 86.500293] should_failslab+0x5/0x10 [ 86.504075] kmem_cache_alloc+0x277/0x370 [ 86.508206] alloc_inode+0xab/0x180 [ 86.511810] new_inode+0x1d/0xf0 [ 86.515157] debugfs_get_inode+0x1a/0x130 [ 86.519310] debugfs_create_dir+0x73/0x440 [ 86.523526] bdi_register_va.part.0+0x1f7/0x750 [ 86.528177] bdi_register+0x12a/0x140 [ 86.531958] ? bdi_register_va+0x80/0x80 [ 86.536010] ? vsnprintf+0x2cc/0x14f0 [ 86.539797] bdi_register_owner+0x59/0x100 [ 86.544038] __device_add_disk+0xd58/0x10c0 [ 86.548340] ? sprintf+0xc0/0x100 [ 86.551773] ? blk_alloc_devt+0x2d0/0x2d0 [ 86.555902] ? __raw_spin_lock_init+0x28/0x100 [ 86.560462] ? __lockdep_init_map+0x100/0x5a0 [ 86.564940] loop_add+0x628/0x8a0 [ 86.568375] loop_control_ioctl+0x16c/0x480 [ 86.572676] ? loop_lookup+0x1d0/0x1d0 [ 86.576544] ? __vfs_write+0xff/0x770 [ 86.580323] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 86.585239] ? common_file_perm+0x4e5/0x850 [ 86.589550] ? loop_lookup+0x1d0/0x1d0 [ 86.593415] do_vfs_ioctl+0xcdb/0x12e0 [ 86.597290] ? vfs_write+0x3d7/0x540 [ 86.600990] ? ioctl_preallocate+0x200/0x200 [ 86.605378] ? lock_downgrade+0x720/0x720 [ 86.609506] ? check_preemption_disabled+0x41/0x280 [ 86.614501] ? vfs_write+0x393/0x540 [ 86.618208] ? ksys_write+0x1c8/0x2a0 [ 86.621987] ksys_ioctl+0x9b/0xc0 [ 86.625421] __x64_sys_ioctl+0x6f/0xb0 [ 86.629285] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 86.633843] do_syscall_64+0xf9/0x620 [ 86.637625] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.642794] RIP: 0033:0x7f06838f9079 [ 86.646488] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 86.665375] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.673058] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 86.680316] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 86.687562] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 86.694807] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 86.702055] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 86.779679] FAULT_INJECTION: forcing a failure. [ 86.779679] name failslab, interval 1, probability 0, space 0, times 0 [ 86.791377] CPU: 0 PID: 8256 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 86.799250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 86.808579] Call Trace: [ 86.811153] dump_stack+0x1fc/0x2ef [ 86.814765] should_fail.cold+0xa/0xf [ 86.818548] ? setup_fault_attr+0x200/0x200 [ 86.822847] ? lock_acquire+0x170/0x3c0 [ 86.826804] __should_failslab+0x115/0x180 [ 86.831026] should_failslab+0x5/0x10 [ 86.834807] kmem_cache_alloc+0x277/0x370 [ 86.838934] alloc_inode+0xab/0x180 [ 86.842539] new_inode+0x1d/0xf0 [ 86.845884] debugfs_get_inode+0x1a/0x130 [ 86.850016] __debugfs_create_file+0xb2/0x480 [ 86.854499] bdi_register_va.part.0+0x24b/0x750 [ 86.859166] bdi_register+0x12a/0x140 [ 86.862944] ? bdi_register_va+0x80/0x80 [ 86.866986] ? vsnprintf+0x2cc/0x14f0 [ 86.870771] bdi_register_owner+0x59/0x100 [ 86.874984] __device_add_disk+0xd58/0x10c0 [ 86.879301] ? sprintf+0xc0/0x100 [ 86.882732] ? blk_alloc_devt+0x2d0/0x2d0 [ 86.886861] ? __raw_spin_lock_init+0x28/0x100 [ 86.891424] ? __lockdep_init_map+0x100/0x5a0 [ 86.895901] loop_add+0x628/0x8a0 [ 86.899333] loop_control_ioctl+0x16c/0x480 [ 86.903644] ? loop_lookup+0x1d0/0x1d0 [ 86.907522] ? __vfs_write+0xff/0x770 [ 86.911308] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 86.916226] ? common_file_perm+0x4e5/0x850 [ 86.920528] ? loop_lookup+0x1d0/0x1d0 [ 86.924402] do_vfs_ioctl+0xcdb/0x12e0 [ 86.928277] ? vfs_write+0x3d7/0x540 [ 86.931970] ? ioctl_preallocate+0x200/0x200 [ 86.936358] ? lock_downgrade+0x720/0x720 [ 86.940488] ? check_preemption_disabled+0x41/0x280 [ 86.945484] ? vfs_write+0x393/0x540 [ 86.949177] ? ksys_write+0x1c8/0x2a0 [ 86.952955] ksys_ioctl+0x9b/0xc0 [ 86.956386] __x64_sys_ioctl+0x6f/0xb0 [ 86.960250] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 86.964811] do_syscall_64+0xf9/0x620 [ 86.968594] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.973761] RIP: 0033:0x7f06838f9079 [ 86.977455] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 86.996339] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 87.004024] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 87.011270] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 87.018529] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 87.025775] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 87.033030] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 87.100824] FAULT_INJECTION: forcing a failure. [ 87.100824] name failslab, interval 1, probability 0, space 0, times 0 [ 87.112163] CPU: 1 PID: 8265 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 87.120028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 87.129359] Call Trace: [ 87.131937] dump_stack+0x1fc/0x2ef [ 87.135550] should_fail.cold+0xa/0xf [ 87.139337] ? setup_fault_attr+0x200/0x200 [ 87.143636] ? lock_acquire+0x170/0x3c0 [ 87.147595] __should_failslab+0x115/0x180 [ 87.151811] should_failslab+0x5/0x10 [ 87.155590] kmem_cache_alloc+0x277/0x370 [ 87.159721] __d_alloc+0x2b/0xa10 [ 87.163155] ? lock_downgrade+0x720/0x720 [ 87.167279] ? lock_acquire+0x170/0x3c0 [ 87.171235] d_alloc+0x4a/0x230 [ 87.174495] d_alloc_parallel+0xeb/0x19e0 [ 87.178626] ? mark_held_locks+0xf0/0xf0 [ 87.182668] ? __lock_acquire+0x6de/0x3ff0 [ 87.186892] ? __d_lookup_rcu+0x6b0/0x6b0 [ 87.191018] ? mark_held_locks+0xf0/0xf0 [ 87.195060] ? mark_held_locks+0xf0/0xf0 [ 87.199104] ? __lockdep_init_map+0x100/0x5a0 [ 87.203577] ? __lockdep_init_map+0x100/0x5a0 [ 87.208053] __lookup_slow+0x18d/0x4a0 [ 87.211921] ? check_preemption_disabled+0x41/0x280 [ 87.216916] ? follow_dotdot_rcu+0x1040/0x1040 [ 87.221479] ? __d_lookup+0x411/0x710 [ 87.225262] ? d_lookup+0x18e/0x250 [ 87.228874] lookup_one_len+0x163/0x190 [ 87.232827] ? try_lookup_one_len+0x180/0x180 [ 87.237303] start_creating+0xc9/0x220 [ 87.241168] __debugfs_create_file+0x5e/0x480 [ 87.245657] bdi_register_va.part.0+0x24b/0x750 [ 87.250304] bdi_register+0x12a/0x140 [ 87.254086] ? bdi_register_va+0x80/0x80 [ 87.258129] ? vsnprintf+0x2cc/0x14f0 [ 87.261910] bdi_register_owner+0x59/0x100 [ 87.266123] __device_add_disk+0xd58/0x10c0 [ 87.270423] ? sprintf+0xc0/0x100 [ 87.273867] ? blk_alloc_devt+0x2d0/0x2d0 [ 87.278004] ? __raw_spin_lock_init+0x28/0x100 [ 87.282565] ? __lockdep_init_map+0x100/0x5a0 [ 87.287042] loop_add+0x628/0x8a0 [ 87.290477] loop_control_ioctl+0x16c/0x480 [ 87.294776] ? loop_lookup+0x1d0/0x1d0 [ 87.298649] ? __vfs_write+0xff/0x770 [ 87.302430] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 87.307336] ? common_file_perm+0x4e5/0x850 [ 87.311636] ? loop_lookup+0x1d0/0x1d0 [ 87.315511] do_vfs_ioctl+0xcdb/0x12e0 [ 87.319376] ? vfs_write+0x3d7/0x540 [ 87.323085] ? ioctl_preallocate+0x200/0x200 [ 87.327477] ? lock_downgrade+0x720/0x720 [ 87.331607] ? check_preemption_disabled+0x41/0x280 [ 87.336601] ? vfs_write+0x393/0x540 [ 87.340292] ? ksys_write+0x1c8/0x2a0 [ 87.344071] ksys_ioctl+0x9b/0xc0 [ 87.347509] __x64_sys_ioctl+0x6f/0xb0 [ 87.351375] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 87.355933] do_syscall_64+0xf9/0x620 [ 87.359716] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 87.364883] RIP: 0033:0x7f06838f9079 [ 87.368575] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 87.387458] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 87.395153] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 87.402398] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 87.409650] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 87.416897] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 87.424142] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 87.478919] FAULT_INJECTION: forcing a failure. [ 87.478919] name failslab, interval 1, probability 0, space 0, times 0 [ 87.492800] CPU: 0 PID: 8273 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 87.500680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 87.510017] Call Trace: [ 87.512598] dump_stack+0x1fc/0x2ef [ 87.516207] should_fail.cold+0xa/0xf [ 87.519996] ? setup_fault_attr+0x200/0x200 [ 87.524305] ? lock_acquire+0x170/0x3c0 [ 87.528266] __should_failslab+0x115/0x180 [ 87.532479] should_failslab+0x5/0x10 [ 87.536259] kmem_cache_alloc+0x277/0x370 [ 87.540387] alloc_inode+0xab/0x180 [ 87.543990] new_inode+0x1d/0xf0 [ 87.547353] debugfs_get_inode+0x1a/0x130 [ 87.551482] debugfs_create_dir+0x73/0x440 [ 87.555699] bdi_register_va.part.0+0x1f7/0x750 [ 87.560348] bdi_register+0x12a/0x140 [ 87.564125] ? bdi_register_va+0x80/0x80 [ 87.568170] ? vsnprintf+0x2cc/0x14f0 [ 87.571954] bdi_register_owner+0x59/0x100 [ 87.576168] __device_add_disk+0xd58/0x10c0 [ 87.580468] ? sprintf+0xc0/0x100 [ 87.583900] ? blk_alloc_devt+0x2d0/0x2d0 [ 87.588027] ? __raw_spin_lock_init+0x28/0x100 [ 87.592588] ? __lockdep_init_map+0x100/0x5a0 [ 87.597066] loop_add+0x628/0x8a0 [ 87.600499] loop_control_ioctl+0x16c/0x480 [ 87.604797] ? loop_lookup+0x1d0/0x1d0 [ 87.608664] ? __vfs_write+0xff/0x770 [ 87.612447] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 87.617362] ? common_file_perm+0x4e5/0x850 [ 87.621665] ? loop_lookup+0x1d0/0x1d0 [ 87.625536] do_vfs_ioctl+0xcdb/0x12e0 [ 87.629401] ? vfs_write+0x3d7/0x540 [ 87.633092] ? ioctl_preallocate+0x200/0x200 [ 87.637481] ? lock_downgrade+0x720/0x720 [ 87.641608] ? check_preemption_disabled+0x41/0x280 [ 87.646607] ? vfs_write+0x393/0x540 [ 87.650302] ? ksys_write+0x1c8/0x2a0 [ 87.654093] ksys_ioctl+0x9b/0xc0 [ 87.657526] __x64_sys_ioctl+0x6f/0xb0 [ 87.661390] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 87.665947] do_syscall_64+0xf9/0x620 [ 87.669730] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 87.674922] RIP: 0033:0x7f06838f9079 [ 87.678623] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 87.697501] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 87.705186] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 87.712436] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 87.719691] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 87.726935] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 87.734182] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 87.778749] FAULT_INJECTION: forcing a failure. [ 87.778749] name failslab, interval 1, probability 0, space 0, times 0 [ 87.790184] CPU: 0 PID: 8282 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 87.798049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 87.807381] Call Trace: [ 87.809950] dump_stack+0x1fc/0x2ef [ 87.813561] should_fail.cold+0xa/0xf [ 87.817346] ? setup_fault_attr+0x200/0x200 [ 87.821647] ? lock_acquire+0x170/0x3c0 [ 87.825605] __should_failslab+0x115/0x180 [ 87.829820] should_failslab+0x5/0x10 [ 87.833608] kmem_cache_alloc+0x277/0x370 [ 87.837736] __d_alloc+0x2b/0xa10 [ 87.841169] d_alloc+0x4a/0x230 [ 87.844433] d_alloc_parallel+0xeb/0x19e0 [ 87.848564] ? mark_held_locks+0xf0/0xf0 [ 87.852608] ? __d_lookup_rcu+0x6b0/0x6b0 [ 87.856735] ? device_add+0xbf8/0x16d0 [ 87.860605] ? mark_held_locks+0xf0/0xf0 [ 87.864644] ? __lockdep_init_map+0x100/0x5a0 [ 87.869129] ? __lockdep_init_map+0x100/0x5a0 [ 87.873608] __lookup_slow+0x18d/0x4a0 [ 87.877477] ? check_preemption_disabled+0x41/0x280 [ 87.882470] ? follow_dotdot_rcu+0x1040/0x1040 [ 87.887043] ? __d_lookup+0x411/0x710 [ 87.890829] ? d_lookup+0x18e/0x250 [ 87.894438] lookup_one_len+0x163/0x190 [ 87.898392] ? try_lookup_one_len+0x180/0x180 [ 87.902869] start_creating+0xc9/0x220 [ 87.906746] debugfs_create_dir+0x1f/0x440 [ 87.910961] bdi_register_va.part.0+0x1f7/0x750 [ 87.915611] bdi_register+0x12a/0x140 [ 87.919388] ? bdi_register_va+0x80/0x80 [ 87.923430] ? vsnprintf+0x2cc/0x14f0 [ 87.927220] bdi_register_owner+0x59/0x100 [ 87.931434] __device_add_disk+0xd58/0x10c0 [ 87.935749] ? sprintf+0xc0/0x100 [ 87.939211] ? blk_alloc_devt+0x2d0/0x2d0 [ 87.943345] ? __raw_spin_lock_init+0x28/0x100 [ 87.947909] ? __lockdep_init_map+0x100/0x5a0 [ 87.952394] loop_add+0x628/0x8a0 [ 87.955992] loop_control_ioctl+0x16c/0x480 [ 87.960298] ? loop_lookup+0x1d0/0x1d0 [ 87.964167] ? __vfs_write+0xff/0x770 [ 87.967945] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 87.972855] ? common_file_perm+0x4e5/0x850 [ 87.977188] ? loop_lookup+0x1d0/0x1d0 [ 87.981072] do_vfs_ioctl+0xcdb/0x12e0 [ 87.984941] ? vfs_write+0x3d7/0x540 [ 87.988633] ? ioctl_preallocate+0x200/0x200 [ 87.993020] ? lock_downgrade+0x720/0x720 [ 87.997151] ? check_preemption_disabled+0x41/0x280 [ 88.002164] ? vfs_write+0x393/0x540 [ 88.005865] ? ksys_write+0x1c8/0x2a0 [ 88.009646] ksys_ioctl+0x9b/0xc0 [ 88.013081] __x64_sys_ioctl+0x6f/0xb0 [ 88.016954] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 88.021515] do_syscall_64+0xf9/0x620 [ 88.025303] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.030470] RIP: 0033:0x7f06838f9079 [ 88.034162] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 88.053040] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.060727] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 88.068067] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 88.075317] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 88.082570] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 88.089824] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 88.159697] FAULT_INJECTION: forcing a failure. [ 88.159697] name failslab, interval 1, probability 0, space 0, times 0 [ 88.171012] CPU: 0 PID: 8292 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 88.178873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 88.188203] Call Trace: [ 88.190774] dump_stack+0x1fc/0x2ef [ 88.194383] should_fail.cold+0xa/0xf [ 88.198168] ? setup_fault_attr+0x200/0x200 [ 88.202469] ? lock_acquire+0x170/0x3c0 [ 88.206435] __should_failslab+0x115/0x180 [ 88.210656] should_failslab+0x5/0x10 [ 88.214436] kmem_cache_alloc+0x277/0x370 [ 88.218562] alloc_inode+0xab/0x180 [ 88.222168] new_inode+0x1d/0xf0 [ 88.225512] debugfs_get_inode+0x1a/0x130 [ 88.229635] __debugfs_create_file+0xb2/0x480 [ 88.234111] bdi_register_va.part.0+0x24b/0x750 [ 88.238761] bdi_register+0x12a/0x140 [ 88.242546] ? bdi_register_va+0x80/0x80 [ 88.246592] ? vsnprintf+0x2cc/0x14f0 [ 88.250373] bdi_register_owner+0x59/0x100 [ 88.254593] __device_add_disk+0xd58/0x10c0 [ 88.258897] ? sprintf+0xc0/0x100 [ 88.262328] ? blk_alloc_devt+0x2d0/0x2d0 [ 88.266463] ? __raw_spin_lock_init+0x28/0x100 [ 88.271032] ? __lockdep_init_map+0x100/0x5a0 [ 88.275510] loop_add+0x628/0x8a0 [ 88.278946] loop_control_ioctl+0x16c/0x480 [ 88.283253] ? loop_lookup+0x1d0/0x1d0 [ 88.287120] ? __vfs_write+0xff/0x770 [ 88.290901] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 88.295808] ? common_file_perm+0x4e5/0x850 [ 88.300108] ? loop_lookup+0x1d0/0x1d0 [ 88.303973] do_vfs_ioctl+0xcdb/0x12e0 [ 88.307843] ? vfs_write+0x3d7/0x540 [ 88.311534] ? ioctl_preallocate+0x200/0x200 [ 88.315921] ? lock_downgrade+0x720/0x720 [ 88.320052] ? check_preemption_disabled+0x41/0x280 [ 88.325046] ? vfs_write+0x393/0x540 [ 88.328739] ? ksys_write+0x1c8/0x2a0 [ 88.332520] ksys_ioctl+0x9b/0xc0 [ 88.335952] __x64_sys_ioctl+0x6f/0xb0 [ 88.339816] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 88.344376] do_syscall_64+0xf9/0x620 [ 88.348158] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.353326] RIP: 0033:0x7f06838f9079 [ 88.357042] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 88.375929] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.383616] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 88.391562] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 88.398807] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 88.406058] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 88.413305] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 88.478795] FAULT_INJECTION: forcing a failure. [ 88.478795] name failslab, interval 1, probability 0, space 0, times 0 [ 88.490613] CPU: 1 PID: 8302 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 88.498482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 88.507904] Call Trace: [ 88.510476] dump_stack+0x1fc/0x2ef [ 88.514087] should_fail.cold+0xa/0xf [ 88.517869] ? setup_fault_attr+0x200/0x200 [ 88.522172] ? lock_acquire+0x170/0x3c0 [ 88.526128] __should_failslab+0x115/0x180 [ 88.530343] should_failslab+0x5/0x10 [ 88.534120] kmem_cache_alloc+0x277/0x370 [ 88.538250] __d_alloc+0x2b/0xa10 [ 88.541691] d_alloc+0x4a/0x230 [ 88.545102] d_alloc_parallel+0xeb/0x19e0 [ 88.549244] ? mark_held_locks+0xf0/0xf0 [ 88.553288] ? __d_lookup_rcu+0x6b0/0x6b0 [ 88.557785] ? device_add+0xbf8/0x16d0 [ 88.561658] ? mark_held_locks+0xf0/0xf0 [ 88.565701] ? __lockdep_init_map+0x100/0x5a0 [ 88.570176] ? __lockdep_init_map+0x100/0x5a0 [ 88.574670] __lookup_slow+0x18d/0x4a0 [ 88.578550] ? check_preemption_disabled+0x41/0x280 [ 88.583548] ? follow_dotdot_rcu+0x1040/0x1040 [ 88.588128] ? __d_lookup+0x411/0x710 [ 88.591912] ? d_lookup+0x18e/0x250 [ 88.595524] lookup_one_len+0x163/0x190 [ 88.599476] ? try_lookup_one_len+0x180/0x180 [ 88.603953] start_creating+0xc9/0x220 [ 88.607820] debugfs_create_dir+0x1f/0x440 [ 88.612038] bdi_register_va.part.0+0x1f7/0x750 [ 88.616689] bdi_register+0x12a/0x140 [ 88.620466] ? bdi_register_va+0x80/0x80 [ 88.624508] ? vsnprintf+0x2cc/0x14f0 [ 88.628289] bdi_register_owner+0x59/0x100 [ 88.632501] __device_add_disk+0xd58/0x10c0 [ 88.636802] ? sprintf+0xc0/0x100 [ 88.640231] ? blk_alloc_devt+0x2d0/0x2d0 [ 88.644371] ? __raw_spin_lock_init+0x28/0x100 [ 88.648931] ? __lockdep_init_map+0x100/0x5a0 [ 88.653413] loop_add+0x628/0x8a0 [ 88.656847] loop_control_ioctl+0x16c/0x480 [ 88.661146] ? loop_lookup+0x1d0/0x1d0 [ 88.665017] ? __vfs_write+0xff/0x770 [ 88.668797] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 88.673708] ? common_file_perm+0x4e5/0x850 [ 88.678007] ? loop_lookup+0x1d0/0x1d0 [ 88.681875] do_vfs_ioctl+0xcdb/0x12e0 [ 88.685740] ? vfs_write+0x3d7/0x540 [ 88.689518] ? ioctl_preallocate+0x200/0x200 [ 88.693904] ? lock_downgrade+0x720/0x720 [ 88.698042] ? check_preemption_disabled+0x41/0x280 [ 88.703040] ? vfs_write+0x393/0x540 [ 88.706735] ? ksys_write+0x1c8/0x2a0 [ 88.710517] ksys_ioctl+0x9b/0xc0 [ 88.713953] __x64_sys_ioctl+0x6f/0xb0 [ 88.717820] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 88.722382] do_syscall_64+0xf9/0x620 [ 88.726178] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.731344] RIP: 0033:0x7f06838f9079 [ 88.735037] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 88.753926] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.761610] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 88.768864] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 88.776111] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 88.783446] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 88.790690] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 88.859121] FAULT_INJECTION: forcing a failure. [ 88.859121] name failslab, interval 1, probability 0, space 0, times 0 [ 88.870864] CPU: 1 PID: 8311 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 88.878727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 88.888057] Call Trace: [ 88.890629] dump_stack+0x1fc/0x2ef [ 88.894240] should_fail.cold+0xa/0xf [ 88.898023] ? setup_fault_attr+0x200/0x200 [ 88.902321] ? lock_acquire+0x170/0x3c0 [ 88.906275] __should_failslab+0x115/0x180 [ 88.910492] should_failslab+0x5/0x10 [ 88.914270] kmem_cache_alloc+0x277/0x370 [ 88.918396] __d_alloc+0x2b/0xa10 [ 88.921830] ? lock_downgrade+0x720/0x720 [ 88.925955] ? lock_acquire+0x170/0x3c0 [ 88.929908] d_alloc+0x4a/0x230 [ 88.933174] d_alloc_parallel+0xeb/0x19e0 [ 88.937308] ? mark_held_locks+0xf0/0xf0 [ 88.941345] ? __lock_acquire+0x6de/0x3ff0 [ 88.945562] ? __d_lookup_rcu+0x6b0/0x6b0 [ 88.949688] ? mark_held_locks+0xf0/0xf0 [ 88.953816] ? mark_held_locks+0xf0/0xf0 [ 88.957853] ? __lockdep_init_map+0x100/0x5a0 [ 88.962325] ? __lockdep_init_map+0x100/0x5a0 [ 88.966808] __lookup_slow+0x18d/0x4a0 [ 88.970689] ? check_preemption_disabled+0x41/0x280 [ 88.975684] ? follow_dotdot_rcu+0x1040/0x1040 [ 88.980244] ? __d_lookup+0x411/0x710 [ 88.984025] ? d_lookup+0x18e/0x250 [ 88.987636] lookup_one_len+0x163/0x190 [ 88.991587] ? try_lookup_one_len+0x180/0x180 [ 88.996064] start_creating+0xc9/0x220 [ 88.999930] __debugfs_create_file+0x5e/0x480 [ 89.004404] bdi_register_va.part.0+0x24b/0x750 [ 89.009062] bdi_register+0x12a/0x140 [ 89.012839] ? bdi_register_va+0x80/0x80 [ 89.016882] ? vsnprintf+0x2cc/0x14f0 [ 89.020667] bdi_register_owner+0x59/0x100 [ 89.024882] __device_add_disk+0xd58/0x10c0 [ 89.029187] ? sprintf+0xc0/0x100 [ 89.032618] ? blk_alloc_devt+0x2d0/0x2d0 [ 89.036747] ? __raw_spin_lock_init+0x28/0x100 [ 89.041307] ? __lockdep_init_map+0x100/0x5a0 [ 89.045785] loop_add+0x628/0x8a0 [ 89.049222] loop_control_ioctl+0x16c/0x480 [ 89.053529] ? loop_lookup+0x1d0/0x1d0 [ 89.057397] ? __vfs_write+0xff/0x770 [ 89.061190] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 89.066109] ? common_file_perm+0x4e5/0x850 [ 89.070414] ? loop_lookup+0x1d0/0x1d0 [ 89.074284] do_vfs_ioctl+0xcdb/0x12e0 [ 89.078152] ? vfs_write+0x3d7/0x540 [ 89.081858] ? ioctl_preallocate+0x200/0x200 [ 89.086259] ? lock_downgrade+0x720/0x720 [ 89.090402] ? check_preemption_disabled+0x41/0x280 [ 89.095411] ? vfs_write+0x393/0x540 [ 89.099115] ? ksys_write+0x1c8/0x2a0 [ 89.102899] ksys_ioctl+0x9b/0xc0 [ 89.106337] __x64_sys_ioctl+0x6f/0xb0 [ 89.110209] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 89.114772] do_syscall_64+0xf9/0x620 [ 89.118557] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.123724] RIP: 0033:0x7f06838f9079 [ 89.127418] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 89.146298] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 89.153989] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 89.161237] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 89.168484] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 89.175729] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 89.182975] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 89.228195] FAULT_INJECTION: forcing a failure. [ 89.228195] name failslab, interval 1, probability 0, space 0, times 0 [ 89.239760] CPU: 1 PID: 8320 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 89.247624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 89.256955] Call Trace: [ 89.259524] dump_stack+0x1fc/0x2ef [ 89.263131] should_fail.cold+0xa/0xf [ 89.266915] ? setup_fault_attr+0x200/0x200 [ 89.271216] ? lock_acquire+0x170/0x3c0 [ 89.275173] __should_failslab+0x115/0x180 [ 89.279388] should_failslab+0x5/0x10 [ 89.283170] kmem_cache_alloc+0x277/0x370 [ 89.287309] __d_alloc+0x2b/0xa10 [ 89.290786] d_alloc+0x4a/0x230 [ 89.294047] d_alloc_parallel+0xeb/0x19e0 [ 89.298185] ? mark_held_locks+0xf0/0xf0 [ 89.302225] ? __d_lookup_rcu+0x6b0/0x6b0 [ 89.306353] ? device_add+0xbf8/0x16d0 [ 89.310222] ? mark_held_locks+0xf0/0xf0 [ 89.314263] ? __lockdep_init_map+0x100/0x5a0 [ 89.318740] ? __lockdep_init_map+0x100/0x5a0 [ 89.323217] __lookup_slow+0x18d/0x4a0 [ 89.327084] ? check_preemption_disabled+0x41/0x280 [ 89.332078] ? follow_dotdot_rcu+0x1040/0x1040 [ 89.336640] ? __d_lookup+0x411/0x710 [ 89.340422] ? d_lookup+0x18e/0x250 [ 89.344030] lookup_one_len+0x163/0x190 [ 89.347983] ? try_lookup_one_len+0x180/0x180 [ 89.352461] start_creating+0xc9/0x220 [ 89.356328] debugfs_create_dir+0x1f/0x440 [ 89.360551] bdi_register_va.part.0+0x1f7/0x750 [ 89.365206] bdi_register+0x12a/0x140 [ 89.368984] ? bdi_register_va+0x80/0x80 [ 89.373026] ? vsnprintf+0x2cc/0x14f0 [ 89.376808] bdi_register_owner+0x59/0x100 [ 89.381021] __device_add_disk+0xd58/0x10c0 [ 89.385324] ? sprintf+0xc0/0x100 [ 89.388753] ? blk_alloc_devt+0x2d0/0x2d0 [ 89.392881] ? __raw_spin_lock_init+0x28/0x100 [ 89.397445] ? __lockdep_init_map+0x100/0x5a0 [ 89.401921] loop_add+0x628/0x8a0 [ 89.405362] loop_control_ioctl+0x16c/0x480 [ 89.409671] ? loop_lookup+0x1d0/0x1d0 [ 89.413537] ? __vfs_write+0xff/0x770 [ 89.417317] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 89.422226] ? common_file_perm+0x4e5/0x850 [ 89.426526] ? loop_lookup+0x1d0/0x1d0 [ 89.430392] do_vfs_ioctl+0xcdb/0x12e0 [ 89.434256] ? vfs_write+0x3d7/0x540 [ 89.437947] ? ioctl_preallocate+0x200/0x200 [ 89.442336] ? lock_downgrade+0x720/0x720 [ 89.446467] ? check_preemption_disabled+0x41/0x280 [ 89.451464] ? vfs_write+0x393/0x540 [ 89.455157] ? ksys_write+0x1c8/0x2a0 [ 89.458944] ksys_ioctl+0x9b/0xc0 [ 89.462375] __x64_sys_ioctl+0x6f/0xb0 [ 89.466245] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 89.470811] do_syscall_64+0xf9/0x620 [ 89.474591] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.479756] RIP: 0033:0x7f06838f9079 [ 89.483446] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 89.502322] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.510027] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 89.517276] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 89.524529] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 89.531776] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 89.539022] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 89.598751] FAULT_INJECTION: forcing a failure. [ 89.598751] name failslab, interval 1, probability 0, space 0, times 0 [ 89.610787] CPU: 0 PID: 8328 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 89.618661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 89.627999] Call Trace: [ 89.630569] dump_stack+0x1fc/0x2ef [ 89.634178] should_fail.cold+0xa/0xf [ 89.637961] ? setup_fault_attr+0x200/0x200 [ 89.642266] ? lock_acquire+0x170/0x3c0 [ 89.646232] __should_failslab+0x115/0x180 [ 89.650455] should_failslab+0x5/0x10 [ 89.654237] kmem_cache_alloc+0x277/0x370 [ 89.658389] alloc_inode+0xab/0x180 [ 89.661994] new_inode+0x1d/0xf0 [ 89.665339] debugfs_get_inode+0x1a/0x130 [ 89.669465] debugfs_create_dir+0x73/0x440 [ 89.673681] bdi_register_va.part.0+0x1f7/0x750 [ 89.678330] bdi_register+0x12a/0x140 [ 89.682107] ? bdi_register_va+0x80/0x80 [ 89.686150] ? vsnprintf+0x2cc/0x14f0 [ 89.689932] bdi_register_owner+0x59/0x100 [ 89.694145] __device_add_disk+0xd58/0x10c0 [ 89.698455] ? sprintf+0xc0/0x100 [ 89.701889] ? blk_alloc_devt+0x2d0/0x2d0 [ 89.706018] ? __raw_spin_lock_init+0x28/0x100 [ 89.710590] ? __lockdep_init_map+0x100/0x5a0 [ 89.715066] loop_add+0x628/0x8a0 [ 89.718499] loop_control_ioctl+0x16c/0x480 [ 89.722799] ? loop_lookup+0x1d0/0x1d0 [ 89.726665] ? __vfs_write+0xff/0x770 [ 89.730443] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 89.735348] ? common_file_perm+0x4e5/0x850 [ 89.739649] ? loop_lookup+0x1d0/0x1d0 [ 89.743517] do_vfs_ioctl+0xcdb/0x12e0 [ 89.747383] ? vfs_write+0x3d7/0x540 [ 89.751073] ? ioctl_preallocate+0x200/0x200 [ 89.755463] ? lock_downgrade+0x720/0x720 [ 89.759601] ? check_preemption_disabled+0x41/0x280 [ 89.764603] ? vfs_write+0x393/0x540 [ 89.768295] ? ksys_write+0x1c8/0x2a0 [ 89.772080] ksys_ioctl+0x9b/0xc0 [ 89.775511] __x64_sys_ioctl+0x6f/0xb0 [ 89.779398] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 89.783957] do_syscall_64+0xf9/0x620 [ 89.787735] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.792906] RIP: 0033:0x7f06838f9079 [ 89.796598] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 89.815476] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.823160] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 89.830405] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 89.837652] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 89.844899] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 89.852148] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 89.918893] FAULT_INJECTION: forcing a failure. [ 89.918893] name failslab, interval 1, probability 0, space 0, times 0 [ 89.930592] CPU: 0 PID: 8338 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 89.938463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 89.947797] Call Trace: [ 89.950380] dump_stack+0x1fc/0x2ef [ 89.953990] should_fail.cold+0xa/0xf [ 89.957774] ? setup_fault_attr+0x200/0x200 [ 89.962087] ? lock_acquire+0x170/0x3c0 [ 89.966050] __should_failslab+0x115/0x180 [ 89.970271] should_failslab+0x5/0x10 [ 89.974061] kmem_cache_alloc+0x277/0x370 [ 89.978194] __d_alloc+0x2b/0xa10 [ 89.981629] ? lock_downgrade+0x720/0x720 [ 89.985757] ? lock_acquire+0x170/0x3c0 [ 89.989719] d_alloc+0x4a/0x230 [ 89.992984] d_alloc_parallel+0xeb/0x19e0 [ 89.997124] ? mark_held_locks+0xf0/0xf0 [ 90.001167] ? __lock_acquire+0x6de/0x3ff0 [ 90.005386] ? __d_lookup_rcu+0x6b0/0x6b0 [ 90.009513] ? mark_held_locks+0xf0/0xf0 [ 90.013555] ? mark_held_locks+0xf0/0xf0 [ 90.017597] ? __lockdep_init_map+0x100/0x5a0 [ 90.022178] ? __lockdep_init_map+0x100/0x5a0 [ 90.026659] __lookup_slow+0x18d/0x4a0 [ 90.030528] ? check_preemption_disabled+0x41/0x280 [ 90.035524] ? follow_dotdot_rcu+0x1040/0x1040 [ 90.040090] ? __d_lookup+0x411/0x710 [ 90.043873] ? d_lookup+0x18e/0x250 [ 90.047485] lookup_one_len+0x163/0x190 [ 90.051438] ? try_lookup_one_len+0x180/0x180 [ 90.055921] start_creating+0xc9/0x220 [ 90.059785] __debugfs_create_file+0x5e/0x480 [ 90.064265] bdi_register_va.part.0+0x24b/0x750 [ 90.068913] bdi_register+0x12a/0x140 [ 90.072695] ? bdi_register_va+0x80/0x80 [ 90.076744] ? vsnprintf+0x2cc/0x14f0 [ 90.080531] bdi_register_owner+0x59/0x100 [ 90.084753] __device_add_disk+0xd58/0x10c0 [ 90.089065] ? sprintf+0xc0/0x100 [ 90.092498] ? blk_alloc_devt+0x2d0/0x2d0 [ 90.096632] ? __raw_spin_lock_init+0x28/0x100 [ 90.101203] ? __lockdep_init_map+0x100/0x5a0 [ 90.105685] loop_add+0x628/0x8a0 [ 90.109123] loop_control_ioctl+0x16c/0x480 [ 90.113424] ? loop_lookup+0x1d0/0x1d0 [ 90.117296] ? __vfs_write+0xff/0x770 [ 90.121082] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 90.125999] ? common_file_perm+0x4e5/0x850 [ 90.130304] ? loop_lookup+0x1d0/0x1d0 [ 90.134174] do_vfs_ioctl+0xcdb/0x12e0 [ 90.138050] ? vfs_write+0x3d7/0x540 [ 90.141742] ? ioctl_preallocate+0x200/0x200 [ 90.146132] ? lock_downgrade+0x720/0x720 [ 90.150264] ? check_preemption_disabled+0x41/0x280 [ 90.155260] ? vfs_write+0x393/0x540 [ 90.158953] ? ksys_write+0x1c8/0x2a0 [ 90.162737] ksys_ioctl+0x9b/0xc0 [ 90.166183] __x64_sys_ioctl+0x6f/0xb0 [ 90.170059] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 90.174624] do_syscall_64+0xf9/0x620 [ 90.178409] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.183577] RIP: 0033:0x7f06838f9079 [ 90.187268] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 90.206153] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 90.213851] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 90.221108] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 90.228356] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 90.235601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 90.242848] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 90.309320] FAULT_INJECTION: forcing a failure. [ 90.309320] name failslab, interval 1, probability 0, space 0, times 0 [ 90.321218] CPU: 1 PID: 8347 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 90.329086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 90.338421] Call Trace: [ 90.340990] dump_stack+0x1fc/0x2ef [ 90.344597] should_fail.cold+0xa/0xf [ 90.348377] ? setup_fault_attr+0x200/0x200 [ 90.352676] ? lock_acquire+0x170/0x3c0 [ 90.356637] __should_failslab+0x115/0x180 [ 90.360861] should_failslab+0x5/0x10 [ 90.364646] kmem_cache_alloc+0x277/0x370 [ 90.368779] __d_alloc+0x2b/0xa10 [ 90.372228] ? lock_downgrade+0x720/0x720 [ 90.376359] ? lock_acquire+0x170/0x3c0 [ 90.380322] d_alloc+0x4a/0x230 [ 90.383586] d_alloc_parallel+0xeb/0x19e0 [ 90.387718] ? mark_held_locks+0xf0/0xf0 [ 90.391756] ? __lock_acquire+0x6de/0x3ff0 [ 90.395970] ? __d_lookup_rcu+0x6b0/0x6b0 [ 90.400097] ? mark_held_locks+0xf0/0xf0 [ 90.404139] ? mark_held_locks+0xf0/0xf0 [ 90.408181] ? __lockdep_init_map+0x100/0x5a0 [ 90.412658] ? __lockdep_init_map+0x100/0x5a0 [ 90.417134] __lookup_slow+0x18d/0x4a0 [ 90.421006] ? check_preemption_disabled+0x41/0x280 [ 90.426001] ? follow_dotdot_rcu+0x1040/0x1040 [ 90.430568] ? __d_lookup+0x411/0x710 [ 90.434351] ? d_lookup+0x18e/0x250 [ 90.437961] lookup_one_len+0x163/0x190 [ 90.441914] ? try_lookup_one_len+0x180/0x180 [ 90.446394] start_creating+0xc9/0x220 [ 90.450261] __debugfs_create_file+0x5e/0x480 [ 90.454736] bdi_register_va.part.0+0x24b/0x750 [ 90.459382] bdi_register+0x12a/0x140 [ 90.463162] ? bdi_register_va+0x80/0x80 [ 90.467205] ? vsnprintf+0x2cc/0x14f0 [ 90.471002] bdi_register_owner+0x59/0x100 [ 90.475222] __device_add_disk+0xd58/0x10c0 [ 90.479525] ? sprintf+0xc0/0x100 [ 90.482954] ? blk_alloc_devt+0x2d0/0x2d0 [ 90.487080] ? __raw_spin_lock_init+0x28/0x100 [ 90.491642] ? __lockdep_init_map+0x100/0x5a0 [ 90.496125] loop_add+0x628/0x8a0 [ 90.499569] loop_control_ioctl+0x16c/0x480 [ 90.503871] ? loop_lookup+0x1d0/0x1d0 [ 90.507739] ? __vfs_write+0xff/0x770 [ 90.511518] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 90.516426] ? common_file_perm+0x4e5/0x850 [ 90.520726] ? loop_lookup+0x1d0/0x1d0 [ 90.524595] do_vfs_ioctl+0xcdb/0x12e0 [ 90.528465] ? vfs_write+0x3d7/0x540 [ 90.532160] ? ioctl_preallocate+0x200/0x200 [ 90.536570] ? lock_downgrade+0x720/0x720 [ 90.540707] ? check_preemption_disabled+0x41/0x280 [ 90.545702] ? vfs_write+0x393/0x540 [ 90.549394] ? ksys_write+0x1c8/0x2a0 [ 90.553174] ksys_ioctl+0x9b/0xc0 [ 90.556609] __x64_sys_ioctl+0x6f/0xb0 [ 90.560475] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 90.565036] do_syscall_64+0xf9/0x620 [ 90.568816] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.573984] RIP: 0033:0x7f06838f9079 [ 90.577685] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 90.596563] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 90.604255] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 90.611499] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 90.618744] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 90.625991] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 90.633236] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 90.699145] FAULT_INJECTION: forcing a failure. [ 90.699145] name failslab, interval 1, probability 0, space 0, times 0 [ 90.710667] CPU: 1 PID: 8353 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 90.718529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 90.727862] Call Trace: [ 90.730430] dump_stack+0x1fc/0x2ef [ 90.734037] should_fail.cold+0xa/0xf [ 90.737820] ? setup_fault_attr+0x200/0x200 [ 90.742121] ? lock_acquire+0x170/0x3c0 [ 90.746079] __should_failslab+0x115/0x180 [ 90.750302] should_failslab+0x5/0x10 [ 90.754080] kmem_cache_alloc+0x277/0x370 [ 90.758211] alloc_inode+0xab/0x180 [ 90.761819] new_inode+0x1d/0xf0 [ 90.765162] debugfs_get_inode+0x1a/0x130 [ 90.769286] debugfs_create_dir+0x73/0x440 [ 90.773501] bdi_register_va.part.0+0x1f7/0x750 [ 90.778153] bdi_register+0x12a/0x140 [ 90.781935] ? bdi_register_va+0x80/0x80 [ 90.785975] ? vsnprintf+0x2cc/0x14f0 [ 90.789756] bdi_register_owner+0x59/0x100 [ 90.793969] __device_add_disk+0xd58/0x10c0 [ 90.798271] ? sprintf+0xc0/0x100 [ 90.801705] ? blk_alloc_devt+0x2d0/0x2d0 [ 90.805830] ? __raw_spin_lock_init+0x28/0x100 [ 90.810392] ? __lockdep_init_map+0x100/0x5a0 [ 90.814866] loop_add+0x628/0x8a0 [ 90.818298] loop_control_ioctl+0x16c/0x480 [ 90.822596] ? loop_lookup+0x1d0/0x1d0 [ 90.826465] ? __vfs_write+0xff/0x770 [ 90.830244] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 90.835152] ? common_file_perm+0x4e5/0x850 [ 90.839450] ? loop_lookup+0x1d0/0x1d0 [ 90.843315] do_vfs_ioctl+0xcdb/0x12e0 [ 90.847184] ? vfs_write+0x3d7/0x540 [ 90.850876] ? ioctl_preallocate+0x200/0x200 [ 90.855263] ? lock_downgrade+0x720/0x720 [ 90.859388] ? check_preemption_disabled+0x41/0x280 [ 90.864383] ? vfs_write+0x393/0x540 [ 90.868085] ? ksys_write+0x1c8/0x2a0 [ 90.871863] ksys_ioctl+0x9b/0xc0 [ 90.875296] __x64_sys_ioctl+0x6f/0xb0 [ 90.879160] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 90.883719] do_syscall_64+0xf9/0x620 [ 90.887500] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.892666] RIP: 0033:0x7f06838f9079 [ 90.896357] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 90.915233] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 90.922920] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 90.930167] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 90.937410] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 90.944761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 90.952008] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 90.998391] FAULT_INJECTION: forcing a failure. [ 90.998391] name failslab, interval 1, probability 0, space 0, times 0 [ 91.009886] CPU: 1 PID: 8363 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 91.017749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 91.027082] Call Trace: [ 91.029657] dump_stack+0x1fc/0x2ef [ 91.033267] should_fail.cold+0xa/0xf [ 91.037053] ? setup_fault_attr+0x200/0x200 [ 91.041353] ? lock_acquire+0x170/0x3c0 [ 91.045308] __should_failslab+0x115/0x180 [ 91.049522] should_failslab+0x5/0x10 [ 91.053299] kmem_cache_alloc+0x277/0x370 [ 91.057427] alloc_inode+0xab/0x180 [ 91.061032] new_inode+0x1d/0xf0 [ 91.064377] debugfs_get_inode+0x1a/0x130 [ 91.068511] debugfs_create_dir+0x73/0x440 [ 91.072737] bdi_register_va.part.0+0x1f7/0x750 [ 91.077390] bdi_register+0x12a/0x140 [ 91.081180] ? bdi_register_va+0x80/0x80 [ 91.085228] ? vsnprintf+0x2cc/0x14f0 [ 91.089017] bdi_register_owner+0x59/0x100 [ 91.093235] __device_add_disk+0xd58/0x10c0 [ 91.097540] ? sprintf+0xc0/0x100 [ 91.100970] ? blk_alloc_devt+0x2d0/0x2d0 [ 91.105098] ? __raw_spin_lock_init+0x28/0x100 [ 91.109659] ? __lockdep_init_map+0x100/0x5a0 [ 91.114137] loop_add+0x628/0x8a0 [ 91.117570] loop_control_ioctl+0x16c/0x480 [ 91.121871] ? loop_lookup+0x1d0/0x1d0 [ 91.125745] ? __vfs_write+0xff/0x770 [ 91.129523] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 91.134430] ? common_file_perm+0x4e5/0x850 [ 91.138740] ? loop_lookup+0x1d0/0x1d0 [ 91.142611] do_vfs_ioctl+0xcdb/0x12e0 [ 91.146477] ? vfs_write+0x3d7/0x540 [ 91.150169] ? ioctl_preallocate+0x200/0x200 [ 91.154554] ? lock_downgrade+0x720/0x720 [ 91.158681] ? check_preemption_disabled+0x41/0x280 [ 91.163677] ? vfs_write+0x393/0x540 [ 91.167371] ? ksys_write+0x1c8/0x2a0 [ 91.171150] ksys_ioctl+0x9b/0xc0 [ 91.174581] __x64_sys_ioctl+0x6f/0xb0 [ 91.178447] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 91.183004] do_syscall_64+0xf9/0x620 [ 91.186785] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.191952] RIP: 0033:0x7f06838f9079 [ 91.195643] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 91.214519] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 91.222207] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 91.229452] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 91.236700] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 91.243951] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 91.251203] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 91.308014] FAULT_INJECTION: forcing a failure. [ 91.308014] name failslab, interval 1, probability 0, space 0, times 0 [ 91.320597] CPU: 0 PID: 8373 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 91.328469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 91.337802] Call Trace: [ 91.340375] dump_stack+0x1fc/0x2ef [ 91.343995] should_fail.cold+0xa/0xf [ 91.347793] ? setup_fault_attr+0x200/0x200 [ 91.352101] ? lock_acquire+0x170/0x3c0 [ 91.356068] __should_failslab+0x115/0x180 [ 91.360300] should_failslab+0x5/0x10 [ 91.364083] kmem_cache_alloc+0x277/0x370 [ 91.368214] alloc_inode+0xab/0x180 [ 91.371825] new_inode+0x1d/0xf0 [ 91.375177] debugfs_get_inode+0x1a/0x130 [ 91.379313] debugfs_create_dir+0x73/0x440 [ 91.383536] bdi_register_va.part.0+0x1f7/0x750 [ 91.388187] bdi_register+0x12a/0x140 [ 91.391966] ? bdi_register_va+0x80/0x80 [ 91.396020] ? vsnprintf+0x2cc/0x14f0 [ 91.399811] bdi_register_owner+0x59/0x100 [ 91.404027] __device_add_disk+0xd58/0x10c0 [ 91.408330] ? sprintf+0xc0/0x100 [ 91.411764] ? blk_alloc_devt+0x2d0/0x2d0 [ 91.415894] ? __raw_spin_lock_init+0x28/0x100 [ 91.420459] ? __lockdep_init_map+0x100/0x5a0 [ 91.424935] loop_add+0x628/0x8a0 [ 91.428375] loop_control_ioctl+0x16c/0x480 [ 91.432686] ? loop_lookup+0x1d0/0x1d0 [ 91.436558] ? __vfs_write+0xff/0x770 [ 91.440337] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 91.445260] ? common_file_perm+0x4e5/0x850 [ 91.449572] ? loop_lookup+0x1d0/0x1d0 [ 91.453439] do_vfs_ioctl+0xcdb/0x12e0 [ 91.457319] ? vfs_write+0x3d7/0x540 [ 91.461026] ? ioctl_preallocate+0x200/0x200 [ 91.465417] ? lock_downgrade+0x720/0x720 [ 91.469549] ? check_preemption_disabled+0x41/0x280 [ 91.474546] ? vfs_write+0x393/0x540 [ 91.478240] ? ksys_write+0x1c8/0x2a0 [ 91.482018] ksys_ioctl+0x9b/0xc0 [ 91.485454] __x64_sys_ioctl+0x6f/0xb0 [ 91.489319] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 91.493879] do_syscall_64+0xf9/0x620 [ 91.497663] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.502830] RIP: 0033:0x7f06838f9079 [ 91.506526] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 91.525416] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 91.533100] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 91.540346] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 91.547591] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 91.554836] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 91.562083] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 91.628516] FAULT_INJECTION: forcing a failure. [ 91.628516] name failslab, interval 1, probability 0, space 0, times 0 [ 91.640446] CPU: 0 PID: 8383 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 91.648326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 91.657659] Call Trace: [ 91.660236] dump_stack+0x1fc/0x2ef [ 91.663862] should_fail.cold+0xa/0xf [ 91.667653] ? setup_fault_attr+0x200/0x200 [ 91.671956] ? lock_acquire+0x170/0x3c0 [ 91.675918] __should_failslab+0x115/0x180 [ 91.680135] should_failslab+0x5/0x10 [ 91.683925] kmem_cache_alloc+0x277/0x370 [ 91.688063] alloc_inode+0xab/0x180 [ 91.691671] new_inode+0x1d/0xf0 [ 91.695028] debugfs_get_inode+0x1a/0x130 [ 91.699154] debugfs_create_dir+0x73/0x440 [ 91.703370] bdi_register_va.part.0+0x1f7/0x750 [ 91.708021] bdi_register+0x12a/0x140 [ 91.711803] ? bdi_register_va+0x80/0x80 [ 91.715848] ? vsnprintf+0x2cc/0x14f0 [ 91.719636] bdi_register_owner+0x59/0x100 [ 91.723857] __device_add_disk+0xd58/0x10c0 [ 91.728171] ? sprintf+0xc0/0x100 [ 91.731609] ? blk_alloc_devt+0x2d0/0x2d0 [ 91.735740] ? __raw_spin_lock_init+0x28/0x100 [ 91.740304] ? __lockdep_init_map+0x100/0x5a0 [ 91.744780] loop_add+0x628/0x8a0 [ 91.748226] loop_control_ioctl+0x16c/0x480 [ 91.752531] ? loop_lookup+0x1d0/0x1d0 [ 91.756401] ? __vfs_write+0xff/0x770 [ 91.760185] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 91.765095] ? common_file_perm+0x4e5/0x850 [ 91.769400] ? loop_lookup+0x1d0/0x1d0 [ 91.773270] do_vfs_ioctl+0xcdb/0x12e0 [ 91.777137] ? vfs_write+0x3d7/0x540 [ 91.780837] ? ioctl_preallocate+0x200/0x200 [ 91.785230] ? lock_downgrade+0x720/0x720 [ 91.789362] ? check_preemption_disabled+0x41/0x280 [ 91.794360] ? vfs_write+0x393/0x540 [ 91.798059] ? ksys_write+0x1c8/0x2a0 [ 91.801863] ksys_ioctl+0x9b/0xc0 [ 91.805302] __x64_sys_ioctl+0x6f/0xb0 [ 91.809172] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 91.813742] do_syscall_64+0xf9/0x620 [ 91.817527] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.822694] RIP: 0033:0x7f06838f9079 [ 91.826387] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 91.845266] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 91.852950] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 91.860196] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 91.867445] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 91.874697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 91.881949] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 91.948682] FAULT_INJECTION: forcing a failure. [ 91.948682] name failslab, interval 1, probability 0, space 0, times 0 [ 91.960754] CPU: 0 PID: 8394 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 91.968648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 91.977981] Call Trace: [ 91.980554] dump_stack+0x1fc/0x2ef [ 91.984166] should_fail.cold+0xa/0xf [ 91.987953] ? setup_fault_attr+0x200/0x200 [ 91.992255] ? lock_acquire+0x170/0x3c0 [ 91.996210] __should_failslab+0x115/0x180 [ 92.000434] should_failslab+0x5/0x10 [ 92.004226] kmem_cache_alloc+0x277/0x370 [ 92.008367] __d_alloc+0x2b/0xa10 [ 92.011815] d_alloc+0x4a/0x230 [ 92.015080] d_alloc_parallel+0xeb/0x19e0 [ 92.019218] ? mark_held_locks+0xf0/0xf0 [ 92.023273] ? __d_lookup_rcu+0x6b0/0x6b0 [ 92.027403] ? device_add+0xbf8/0x16d0 [ 92.031276] ? mark_held_locks+0xf0/0xf0 [ 92.035316] ? __lockdep_init_map+0x100/0x5a0 [ 92.039920] ? __lockdep_init_map+0x100/0x5a0 [ 92.044398] __lookup_slow+0x18d/0x4a0 [ 92.048267] ? check_preemption_disabled+0x41/0x280 [ 92.053263] ? follow_dotdot_rcu+0x1040/0x1040 [ 92.057830] ? __d_lookup+0x411/0x710 [ 92.061617] ? d_lookup+0x18e/0x250 [ 92.065227] lookup_one_len+0x163/0x190 [ 92.069181] ? try_lookup_one_len+0x180/0x180 [ 92.073674] start_creating+0xc9/0x220 [ 92.077540] debugfs_create_dir+0x1f/0x440 [ 92.081755] bdi_register_va.part.0+0x1f7/0x750 [ 92.086406] bdi_register+0x12a/0x140 [ 92.090184] ? bdi_register_va+0x80/0x80 [ 92.094252] ? vsnprintf+0x2cc/0x14f0 [ 92.098041] bdi_register_owner+0x59/0x100 [ 92.102259] __device_add_disk+0xd58/0x10c0 [ 92.106564] ? sprintf+0xc0/0x100 [ 92.109998] ? blk_alloc_devt+0x2d0/0x2d0 [ 92.114129] ? __raw_spin_lock_init+0x28/0x100 [ 92.118693] ? __lockdep_init_map+0x100/0x5a0 [ 92.123170] loop_add+0x628/0x8a0 [ 92.126609] loop_control_ioctl+0x16c/0x480 [ 92.130911] ? loop_lookup+0x1d0/0x1d0 [ 92.134782] ? __vfs_write+0xff/0x770 [ 92.138560] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 92.143466] ? common_file_perm+0x4e5/0x850 [ 92.147771] ? loop_lookup+0x1d0/0x1d0 [ 92.151634] do_vfs_ioctl+0xcdb/0x12e0 [ 92.155502] ? vfs_write+0x3d7/0x540 [ 92.159195] ? ioctl_preallocate+0x200/0x200 [ 92.163584] ? lock_downgrade+0x720/0x720 [ 92.167731] ? check_preemption_disabled+0x41/0x280 [ 92.172730] ? vfs_write+0x393/0x540 [ 92.176423] ? ksys_write+0x1c8/0x2a0 [ 92.180203] ksys_ioctl+0x9b/0xc0 [ 92.183635] __x64_sys_ioctl+0x6f/0xb0 [ 92.187504] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 92.192068] do_syscall_64+0xf9/0x620 [ 92.195855] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.201023] RIP: 0033:0x7f06838f9079 [ 92.204716] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 92.223602] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 92.231288] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 92.238532] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 92.245777] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 92.253025] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 92.260274] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 92.328546] FAULT_INJECTION: forcing a failure. [ 92.328546] name failslab, interval 1, probability 0, space 0, times 0 [ 92.340143] CPU: 0 PID: 8403 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 92.348008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 92.357340] Call Trace: [ 92.359914] dump_stack+0x1fc/0x2ef [ 92.363530] should_fail.cold+0xa/0xf [ 92.367313] ? setup_fault_attr+0x200/0x200 [ 92.371617] ? lock_acquire+0x170/0x3c0 [ 92.375574] __should_failslab+0x115/0x180 [ 92.379790] should_failslab+0x5/0x10 [ 92.383573] kmem_cache_alloc+0x277/0x370 [ 92.387699] __d_alloc+0x2b/0xa10 [ 92.391136] ? lock_downgrade+0x720/0x720 [ 92.395261] ? lock_acquire+0x170/0x3c0 [ 92.399214] d_alloc+0x4a/0x230 [ 92.402476] d_alloc_parallel+0xeb/0x19e0 [ 92.406609] ? mark_held_locks+0xf0/0xf0 [ 92.410649] ? __lock_acquire+0x6de/0x3ff0 [ 92.414860] ? __d_lookup_rcu+0x6b0/0x6b0 [ 92.418990] ? mark_held_locks+0xf0/0xf0 [ 92.423033] ? mark_held_locks+0xf0/0xf0 [ 92.427077] ? __lockdep_init_map+0x100/0x5a0 [ 92.431551] ? __lockdep_init_map+0x100/0x5a0 [ 92.436026] __lookup_slow+0x18d/0x4a0 [ 92.439893] ? check_preemption_disabled+0x41/0x280 [ 92.444889] ? follow_dotdot_rcu+0x1040/0x1040 [ 92.449450] ? __d_lookup+0x411/0x710 [ 92.453235] ? d_lookup+0x18e/0x250 [ 92.456845] lookup_one_len+0x163/0x190 [ 92.460799] ? try_lookup_one_len+0x180/0x180 [ 92.465276] start_creating+0xc9/0x220 [ 92.469144] __debugfs_create_file+0x5e/0x480 [ 92.473619] bdi_register_va.part.0+0x24b/0x750 [ 92.478265] bdi_register+0x12a/0x140 [ 92.482041] ? bdi_register_va+0x80/0x80 [ 92.486086] ? vsnprintf+0x2cc/0x14f0 [ 92.489866] bdi_register_owner+0x59/0x100 [ 92.494085] __device_add_disk+0xd58/0x10c0 [ 92.498386] ? sprintf+0xc0/0x100 [ 92.501817] ? blk_alloc_devt+0x2d0/0x2d0 [ 92.505945] ? __raw_spin_lock_init+0x28/0x100 [ 92.510506] ? __lockdep_init_map+0x100/0x5a0 [ 92.514990] loop_add+0x628/0x8a0 [ 92.518424] loop_control_ioctl+0x16c/0x480 [ 92.522723] ? loop_lookup+0x1d0/0x1d0 [ 92.526592] ? __vfs_write+0xff/0x770 [ 92.530369] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 92.535275] ? common_file_perm+0x4e5/0x850 [ 92.539573] ? loop_lookup+0x1d0/0x1d0 [ 92.543439] do_vfs_ioctl+0xcdb/0x12e0 [ 92.547303] ? vfs_write+0x3d7/0x540 [ 92.550995] ? ioctl_preallocate+0x200/0x200 [ 92.555383] ? lock_downgrade+0x720/0x720 [ 92.559515] ? check_preemption_disabled+0x41/0x280 [ 92.564509] ? vfs_write+0x393/0x540 [ 92.568203] ? ksys_write+0x1c8/0x2a0 [ 92.571993] ksys_ioctl+0x9b/0xc0 [ 92.575426] __x64_sys_ioctl+0x6f/0xb0 [ 92.579291] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 92.583848] do_syscall_64+0xf9/0x620 [ 92.587632] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.592799] RIP: 0033:0x7f06838f9079 [ 92.596493] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 92.615459] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 92.623142] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 92.630389] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 92.637634] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 92.644884] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 92.652129] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 92.698761] FAULT_INJECTION: forcing a failure. [ 92.698761] name failslab, interval 1, probability 0, space 0, times 0 [ 92.712502] CPU: 0 PID: 8412 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 92.720380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 92.729709] Call Trace: [ 92.732277] dump_stack+0x1fc/0x2ef [ 92.735901] should_fail.cold+0xa/0xf [ 92.739687] ? setup_fault_attr+0x200/0x200 [ 92.743992] ? lock_acquire+0x170/0x3c0 [ 92.747955] __should_failslab+0x115/0x180 [ 92.752173] should_failslab+0x5/0x10 [ 92.755950] kmem_cache_alloc+0x277/0x370 [ 92.760078] alloc_inode+0xab/0x180 [ 92.763691] new_inode+0x1d/0xf0 [ 92.767052] debugfs_get_inode+0x1a/0x130 [ 92.771177] __debugfs_create_file+0xb2/0x480 [ 92.775651] bdi_register_va.part.0+0x24b/0x750 [ 92.780301] bdi_register+0x12a/0x140 [ 92.784077] ? bdi_register_va+0x80/0x80 [ 92.788121] ? vsnprintf+0x2cc/0x14f0 [ 92.791905] bdi_register_owner+0x59/0x100 [ 92.796120] __device_add_disk+0xd58/0x10c0 [ 92.800421] ? sprintf+0xc0/0x100 [ 92.803852] ? blk_alloc_devt+0x2d0/0x2d0 [ 92.807985] ? __raw_spin_lock_init+0x28/0x100 [ 92.812544] ? __lockdep_init_map+0x100/0x5a0 [ 92.817022] loop_add+0x628/0x8a0 [ 92.820459] loop_control_ioctl+0x16c/0x480 [ 92.824756] ? loop_lookup+0x1d0/0x1d0 [ 92.828626] ? __vfs_write+0xff/0x770 [ 92.832406] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 92.837315] ? common_file_perm+0x4e5/0x850 [ 92.841614] ? loop_lookup+0x1d0/0x1d0 [ 92.845479] do_vfs_ioctl+0xcdb/0x12e0 [ 92.849345] ? vfs_write+0x3d7/0x540 [ 92.853039] ? ioctl_preallocate+0x200/0x200 [ 92.857427] ? lock_downgrade+0x720/0x720 [ 92.861557] ? check_preemption_disabled+0x41/0x280 [ 92.866562] ? vfs_write+0x393/0x540 [ 92.870259] ? ksys_write+0x1c8/0x2a0 [ 92.874041] ksys_ioctl+0x9b/0xc0 [ 92.877484] __x64_sys_ioctl+0x6f/0xb0 [ 92.881366] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 92.885934] do_syscall_64+0xf9/0x620 [ 92.889717] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.894888] RIP: 0033:0x7f06838f9079 [ 92.898582] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 92.917464] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 92.925157] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 92.932518] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 92.939768] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 92.947019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 92.954276] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 93.018361] FAULT_INJECTION: forcing a failure. [ 93.018361] name failslab, interval 1, probability 0, space 0, times 0 [ 93.030365] CPU: 1 PID: 8421 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 93.038236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 93.047571] Call Trace: [ 93.050140] dump_stack+0x1fc/0x2ef [ 93.053757] should_fail.cold+0xa/0xf [ 93.057548] ? setup_fault_attr+0x200/0x200 [ 93.061857] ? lock_acquire+0x170/0x3c0 [ 93.065831] __should_failslab+0x115/0x180 [ 93.070054] should_failslab+0x5/0x10 [ 93.073851] kmem_cache_alloc+0x277/0x370 [ 93.077982] __d_alloc+0x2b/0xa10 [ 93.081417] d_alloc+0x4a/0x230 [ 93.084681] d_alloc_parallel+0xeb/0x19e0 [ 93.088825] ? mark_held_locks+0xf0/0xf0 [ 93.092866] ? __d_lookup_rcu+0x6b0/0x6b0 [ 93.096994] ? device_add+0xbf8/0x16d0 [ 93.100866] ? mark_held_locks+0xf0/0xf0 [ 93.104906] ? __lockdep_init_map+0x100/0x5a0 [ 93.109391] ? __lockdep_init_map+0x100/0x5a0 [ 93.113871] __lookup_slow+0x18d/0x4a0 [ 93.117741] ? check_preemption_disabled+0x41/0x280 [ 93.122736] ? follow_dotdot_rcu+0x1040/0x1040 [ 93.127299] ? __d_lookup+0x411/0x710 [ 93.131082] ? d_lookup+0x18e/0x250 [ 93.134691] lookup_one_len+0x163/0x190 [ 93.138656] ? try_lookup_one_len+0x180/0x180 [ 93.143143] start_creating+0xc9/0x220 [ 93.147010] debugfs_create_dir+0x1f/0x440 [ 93.151227] bdi_register_va.part.0+0x1f7/0x750 [ 93.155878] bdi_register+0x12a/0x140 [ 93.159657] ? bdi_register_va+0x80/0x80 [ 93.163698] ? vsnprintf+0x2cc/0x14f0 [ 93.167480] bdi_register_owner+0x59/0x100 [ 93.171692] __device_add_disk+0xd58/0x10c0 [ 93.175996] ? sprintf+0xc0/0x100 [ 93.179432] ? blk_alloc_devt+0x2d0/0x2d0 [ 93.183559] ? __raw_spin_lock_init+0x28/0x100 [ 93.188123] ? __lockdep_init_map+0x100/0x5a0 [ 93.192603] loop_add+0x628/0x8a0 [ 93.196042] loop_control_ioctl+0x16c/0x480 [ 93.200343] ? loop_lookup+0x1d0/0x1d0 [ 93.204218] ? __vfs_write+0xff/0x770 [ 93.208001] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 93.212917] ? common_file_perm+0x4e5/0x850 [ 93.217226] ? loop_lookup+0x1d0/0x1d0 [ 93.221100] do_vfs_ioctl+0xcdb/0x12e0 [ 93.224969] ? vfs_write+0x3d7/0x540 [ 93.228662] ? ioctl_preallocate+0x200/0x200 [ 93.233051] ? lock_downgrade+0x720/0x720 [ 93.237182] ? check_preemption_disabled+0x41/0x280 [ 93.242181] ? vfs_write+0x393/0x540 [ 93.245878] ? ksys_write+0x1c8/0x2a0 [ 93.249660] ksys_ioctl+0x9b/0xc0 [ 93.253097] __x64_sys_ioctl+0x6f/0xb0 [ 93.256965] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 93.261533] do_syscall_64+0xf9/0x620 [ 93.265317] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.270485] RIP: 0033:0x7f06838f9079 [ 93.274179] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 93.293059] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.300745] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 93.307996] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 93.315245] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 93.322494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 93.329738] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 93.377924] FAULT_INJECTION: forcing a failure. [ 93.377924] name failslab, interval 1, probability 0, space 0, times 0 [ 93.389408] CPU: 1 PID: 8429 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 93.397272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 93.406604] Call Trace: [ 93.409179] dump_stack+0x1fc/0x2ef [ 93.412788] should_fail.cold+0xa/0xf [ 93.416569] ? setup_fault_attr+0x200/0x200 [ 93.420870] ? lock_acquire+0x170/0x3c0 [ 93.424823] __should_failslab+0x115/0x180 [ 93.429038] should_failslab+0x5/0x10 [ 93.432823] kmem_cache_alloc+0x277/0x370 [ 93.436957] alloc_inode+0xab/0x180 [ 93.440563] new_inode+0x1d/0xf0 [ 93.443910] debugfs_get_inode+0x1a/0x130 [ 93.448037] debugfs_create_dir+0x73/0x440 [ 93.452251] bdi_register_va.part.0+0x1f7/0x750 [ 93.456908] bdi_register+0x12a/0x140 [ 93.460699] ? bdi_register_va+0x80/0x80 [ 93.464748] ? vsnprintf+0x2cc/0x14f0 [ 93.468532] bdi_register_owner+0x59/0x100 [ 93.472751] __device_add_disk+0xd58/0x10c0 [ 93.477060] ? sprintf+0xc0/0x100 [ 93.480509] ? blk_alloc_devt+0x2d0/0x2d0 [ 93.484660] ? __raw_spin_lock_init+0x28/0x100 [ 93.489223] ? __lockdep_init_map+0x100/0x5a0 [ 93.493701] loop_add+0x628/0x8a0 [ 93.497138] loop_control_ioctl+0x16c/0x480 [ 93.501439] ? loop_lookup+0x1d0/0x1d0 [ 93.505322] ? __vfs_write+0xff/0x770 [ 93.509102] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 93.514009] ? common_file_perm+0x4e5/0x850 [ 93.518316] ? loop_lookup+0x1d0/0x1d0 [ 93.522182] do_vfs_ioctl+0xcdb/0x12e0 [ 93.526050] ? vfs_write+0x3d7/0x540 [ 93.529741] ? ioctl_preallocate+0x200/0x200 [ 93.534127] ? lock_downgrade+0x720/0x720 [ 93.538255] ? check_preemption_disabled+0x41/0x280 [ 93.543250] ? vfs_write+0x393/0x540 [ 93.546944] ? ksys_write+0x1c8/0x2a0 [ 93.550721] ksys_ioctl+0x9b/0xc0 [ 93.554153] __x64_sys_ioctl+0x6f/0xb0 [ 93.558018] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 93.562576] do_syscall_64+0xf9/0x620 [ 93.566373] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.571598] RIP: 0033:0x7f06838f9079 [ 93.575300] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 93.594182] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.601867] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 93.609117] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 93.616370] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 93.623624] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 93.630873] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 93.697849] FAULT_INJECTION: forcing a failure. [ 93.697849] name failslab, interval 1, probability 0, space 0, times 0 [ 93.711335] CPU: 0 PID: 8439 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 93.719226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 93.728557] Call Trace: [ 93.731127] dump_stack+0x1fc/0x2ef [ 93.734741] should_fail.cold+0xa/0xf [ 93.738524] ? setup_fault_attr+0x200/0x200 [ 93.742824] ? lock_acquire+0x170/0x3c0 [ 93.746785] __should_failslab+0x115/0x180 [ 93.751002] should_failslab+0x5/0x10 [ 93.754781] kmem_cache_alloc_trace+0x284/0x380 [ 93.759428] ? wait_for_completion_io+0x10/0x10 [ 93.764085] ? kobj_ns_initial+0x90/0x90 [ 93.768126] call_usermodehelper_setup+0x84/0x300 [ 93.772951] kobject_uevent_env+0xe83/0x1480 [ 93.777346] device_add+0xb2f/0x16d0 [ 93.781044] ? device_check_offline+0x280/0x280 [ 93.785692] ? kfree_const+0x51/0x60 [ 93.789384] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 93.794382] ? kfree+0x1e2/0x210 [ 93.797738] device_create_groups_vargs+0x1f4/0x270 [ 93.802737] device_create+0xdf/0x120 [ 93.806521] ? device_create_vargs+0x50/0x50 [ 93.810937] ? pointer+0x850/0x850 [ 93.814465] bdi_register_va.part.0+0x4c/0x750 [ 93.819030] bdi_register+0x12a/0x140 [ 93.822808] ? bdi_register_va+0x80/0x80 [ 93.826852] ? vsnprintf+0x2cc/0x14f0 [ 93.830634] bdi_register_owner+0x59/0x100 [ 93.834847] __device_add_disk+0xd58/0x10c0 [ 93.839147] ? sprintf+0xc0/0x100 [ 93.842581] ? blk_alloc_devt+0x2d0/0x2d0 [ 93.846710] ? __raw_spin_lock_init+0x28/0x100 [ 93.851289] ? __lockdep_init_map+0x100/0x5a0 [ 93.855777] loop_add+0x628/0x8a0 [ 93.859217] loop_control_ioctl+0x16c/0x480 [ 93.863520] ? loop_lookup+0x1d0/0x1d0 [ 93.867385] ? __vfs_write+0xff/0x770 [ 93.871163] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 93.876070] ? common_file_perm+0x4e5/0x850 [ 93.880371] ? loop_lookup+0x1d0/0x1d0 [ 93.884235] do_vfs_ioctl+0xcdb/0x12e0 [ 93.888105] ? vfs_write+0x3d7/0x540 [ 93.891798] ? ioctl_preallocate+0x200/0x200 [ 93.896187] ? lock_downgrade+0x720/0x720 [ 93.900332] ? check_preemption_disabled+0x41/0x280 [ 93.905335] ? vfs_write+0x393/0x540 [ 93.909035] ? ksys_write+0x1c8/0x2a0 [ 93.912822] ksys_ioctl+0x9b/0xc0 [ 93.916256] __x64_sys_ioctl+0x6f/0xb0 [ 93.920124] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 93.924683] do_syscall_64+0xf9/0x620 [ 93.928468] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.933639] RIP: 0033:0x7f06838f9079 [ 93.937332] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 93.956215] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.963905] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 93.971154] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 93.978404] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 93.985659] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 93.992918] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 94.057866] FAULT_INJECTION: forcing a failure. [ 94.057866] name failslab, interval 1, probability 0, space 0, times 0 [ 94.069719] CPU: 1 PID: 8447 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 94.077698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 94.087030] Call Trace: [ 94.089603] dump_stack+0x1fc/0x2ef [ 94.093218] should_fail.cold+0xa/0xf [ 94.097004] ? setup_fault_attr+0x200/0x200 [ 94.101308] ? lock_acquire+0x170/0x3c0 [ 94.105263] __should_failslab+0x115/0x180 [ 94.109476] should_failslab+0x5/0x10 [ 94.113255] kmem_cache_alloc+0x277/0x370 [ 94.117382] alloc_inode+0xab/0x180 [ 94.120987] new_inode+0x1d/0xf0 [ 94.124333] debugfs_get_inode+0x1a/0x130 [ 94.128459] debugfs_create_dir+0x73/0x440 [ 94.132672] bdi_register_va.part.0+0x1f7/0x750 [ 94.137319] bdi_register+0x12a/0x140 [ 94.141106] ? bdi_register_va+0x80/0x80 [ 94.145154] ? vsnprintf+0x2cc/0x14f0 [ 94.148934] bdi_register_owner+0x59/0x100 [ 94.153161] __device_add_disk+0xd58/0x10c0 [ 94.157468] ? sprintf+0xc0/0x100 [ 94.160908] ? blk_alloc_devt+0x2d0/0x2d0 [ 94.165035] ? __raw_spin_lock_init+0x28/0x100 [ 94.169598] ? __lockdep_init_map+0x100/0x5a0 [ 94.174076] loop_add+0x628/0x8a0 [ 94.177509] loop_control_ioctl+0x16c/0x480 [ 94.181809] ? loop_lookup+0x1d0/0x1d0 [ 94.185683] ? __vfs_write+0xff/0x770 [ 94.189469] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 94.194378] ? common_file_perm+0x4e5/0x850 [ 94.198677] ? loop_lookup+0x1d0/0x1d0 [ 94.202546] do_vfs_ioctl+0xcdb/0x12e0 [ 94.206411] ? vfs_write+0x3d7/0x540 [ 94.210104] ? ioctl_preallocate+0x200/0x200 [ 94.214491] ? lock_downgrade+0x720/0x720 [ 94.218618] ? check_preemption_disabled+0x41/0x280 [ 94.223614] ? vfs_write+0x393/0x540 [ 94.227304] ? ksys_write+0x1c8/0x2a0 [ 94.231083] ksys_ioctl+0x9b/0xc0 [ 94.234515] __x64_sys_ioctl+0x6f/0xb0 [ 94.238384] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 94.242944] do_syscall_64+0xf9/0x620 [ 94.246728] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.251895] RIP: 0033:0x7f06838f9079 [ 94.255585] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 94.274464] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 94.282148] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 94.289395] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 94.296639] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 94.303887] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 94.311142] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 94.357886] FAULT_INJECTION: forcing a failure. [ 94.357886] name failslab, interval 1, probability 0, space 0, times 0 [ 94.369330] CPU: 1 PID: 8454 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 94.377194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 94.386526] Call Trace: [ 94.389180] dump_stack+0x1fc/0x2ef [ 94.392787] should_fail.cold+0xa/0xf [ 94.396656] ? setup_fault_attr+0x200/0x200 [ 94.400955] ? lock_acquire+0x170/0x3c0 [ 94.404909] __should_failslab+0x115/0x180 [ 94.409123] should_failslab+0x5/0x10 [ 94.412901] kmem_cache_alloc+0x277/0x370 [ 94.417032] __d_alloc+0x2b/0xa10 [ 94.420466] d_alloc+0x4a/0x230 [ 94.423726] d_alloc_parallel+0xeb/0x19e0 [ 94.427867] ? mark_held_locks+0xf0/0xf0 [ 94.431917] ? __d_lookup_rcu+0x6b0/0x6b0 [ 94.436046] ? device_add+0xbf8/0x16d0 [ 94.439918] ? mark_held_locks+0xf0/0xf0 [ 94.443956] ? __lockdep_init_map+0x100/0x5a0 [ 94.448451] ? __lockdep_init_map+0x100/0x5a0 [ 94.452927] __lookup_slow+0x18d/0x4a0 [ 94.456795] ? check_preemption_disabled+0x41/0x280 [ 94.461788] ? follow_dotdot_rcu+0x1040/0x1040 [ 94.466349] ? __d_lookup+0x411/0x710 [ 94.470132] ? d_lookup+0x18e/0x250 [ 94.473741] lookup_one_len+0x163/0x190 [ 94.477699] ? try_lookup_one_len+0x180/0x180 [ 94.482174] start_creating+0xc9/0x220 [ 94.486038] debugfs_create_dir+0x1f/0x440 [ 94.490250] bdi_register_va.part.0+0x1f7/0x750 [ 94.494898] bdi_register+0x12a/0x140 [ 94.498679] ? bdi_register_va+0x80/0x80 [ 94.502720] ? vsnprintf+0x2cc/0x14f0 [ 94.506503] bdi_register_owner+0x59/0x100 [ 94.510722] __device_add_disk+0xd58/0x10c0 [ 94.515023] ? sprintf+0xc0/0x100 [ 94.518455] ? blk_alloc_devt+0x2d0/0x2d0 [ 94.522582] ? __raw_spin_lock_init+0x28/0x100 [ 94.527143] ? __lockdep_init_map+0x100/0x5a0 [ 94.531618] loop_add+0x628/0x8a0 [ 94.535051] loop_control_ioctl+0x16c/0x480 [ 94.539356] ? loop_lookup+0x1d0/0x1d0 [ 94.543223] ? __vfs_write+0xff/0x770 [ 94.547003] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 94.551909] ? common_file_perm+0x4e5/0x850 [ 94.556209] ? loop_lookup+0x1d0/0x1d0 [ 94.560077] do_vfs_ioctl+0xcdb/0x12e0 [ 94.563943] ? vfs_write+0x3d7/0x540 [ 94.567637] ? ioctl_preallocate+0x200/0x200 [ 94.572034] ? lock_downgrade+0x720/0x720 [ 94.576175] ? check_preemption_disabled+0x41/0x280 [ 94.581171] ? vfs_write+0x393/0x540 [ 94.584864] ? ksys_write+0x1c8/0x2a0 [ 94.588643] ksys_ioctl+0x9b/0xc0 [ 94.592078] __x64_sys_ioctl+0x6f/0xb0 [ 94.595943] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 94.600507] do_syscall_64+0xf9/0x620 [ 94.604288] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.609453] RIP: 0033:0x7f06838f9079 [ 94.613145] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 94.632021] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 94.639709] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 94.646954] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 94.654200] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 94.661445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 94.668688] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 94.738541] FAULT_INJECTION: forcing a failure. [ 94.738541] name failslab, interval 1, probability 0, space 0, times 0 [ 94.749986] CPU: 0 PID: 8464 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 94.757848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 94.767180] Call Trace: [ 94.769752] dump_stack+0x1fc/0x2ef [ 94.773376] should_fail.cold+0xa/0xf [ 94.777167] ? setup_fault_attr+0x200/0x200 [ 94.781465] ? lock_acquire+0x170/0x3c0 [ 94.785434] __should_failslab+0x115/0x180 [ 94.789658] should_failslab+0x5/0x10 [ 94.793437] kmem_cache_alloc+0x277/0x370 [ 94.797563] alloc_inode+0xab/0x180 [ 94.801167] new_inode+0x1d/0xf0 [ 94.804512] debugfs_get_inode+0x1a/0x130 [ 94.808639] debugfs_create_dir+0x73/0x440 [ 94.812855] bdi_register_va.part.0+0x1f7/0x750 [ 94.817507] bdi_register+0x12a/0x140 [ 94.821286] ? bdi_register_va+0x80/0x80 [ 94.825328] ? vsnprintf+0x2cc/0x14f0 [ 94.829111] bdi_register_owner+0x59/0x100 [ 94.833338] __device_add_disk+0xd58/0x10c0 [ 94.837643] ? sprintf+0xc0/0x100 [ 94.841075] ? blk_alloc_devt+0x2d0/0x2d0 [ 94.845202] ? __raw_spin_lock_init+0x28/0x100 [ 94.849766] ? __lockdep_init_map+0x100/0x5a0 [ 94.854244] loop_add+0x628/0x8a0 [ 94.857678] loop_control_ioctl+0x16c/0x480 [ 94.861986] ? loop_lookup+0x1d0/0x1d0 [ 94.865853] ? __vfs_write+0xff/0x770 [ 94.869638] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 94.874547] ? common_file_perm+0x4e5/0x850 [ 94.878849] ? loop_lookup+0x1d0/0x1d0 [ 94.882717] do_vfs_ioctl+0xcdb/0x12e0 [ 94.886590] ? vfs_write+0x3d7/0x540 [ 94.890281] ? ioctl_preallocate+0x200/0x200 [ 94.894670] ? lock_downgrade+0x720/0x720 [ 94.898798] ? check_preemption_disabled+0x41/0x280 [ 94.903792] ? vfs_write+0x393/0x540 [ 94.907488] ? ksys_write+0x1c8/0x2a0 [ 94.911270] ksys_ioctl+0x9b/0xc0 [ 94.914704] __x64_sys_ioctl+0x6f/0xb0 [ 94.918572] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 94.923130] do_syscall_64+0xf9/0x620 [ 94.926915] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.932083] RIP: 0033:0x7f06838f9079 [ 94.935774] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 94.954653] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 94.962338] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 94.969586] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 94.976831] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 94.984076] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 94.991320] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 95.057737] FAULT_INJECTION: forcing a failure. [ 95.057737] name failslab, interval 1, probability 0, space 0, times 0 [ 95.069778] CPU: 0 PID: 8474 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 95.077659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 95.086994] Call Trace: [ 95.089570] dump_stack+0x1fc/0x2ef [ 95.093182] should_fail.cold+0xa/0xf [ 95.096968] ? setup_fault_attr+0x200/0x200 [ 95.101285] ? lock_acquire+0x170/0x3c0 [ 95.105252] __should_failslab+0x115/0x180 [ 95.109477] should_failslab+0x5/0x10 [ 95.113262] kmem_cache_alloc+0x277/0x370 [ 95.117392] __d_alloc+0x2b/0xa10 [ 95.120829] d_alloc+0x4a/0x230 [ 95.124089] d_alloc_parallel+0xeb/0x19e0 [ 95.128222] ? mark_held_locks+0xf0/0xf0 [ 95.132266] ? __d_lookup_rcu+0x6b0/0x6b0 [ 95.136403] ? device_add+0xbf8/0x16d0 [ 95.140274] ? mark_held_locks+0xf0/0xf0 [ 95.144314] ? __lockdep_init_map+0x100/0x5a0 [ 95.148792] ? __lockdep_init_map+0x100/0x5a0 [ 95.153269] __lookup_slow+0x18d/0x4a0 [ 95.157141] ? check_preemption_disabled+0x41/0x280 [ 95.162144] ? follow_dotdot_rcu+0x1040/0x1040 [ 95.166707] ? __d_lookup+0x411/0x710 [ 95.170488] ? d_lookup+0x18e/0x250 [ 95.174097] lookup_one_len+0x163/0x190 [ 95.178050] ? try_lookup_one_len+0x180/0x180 [ 95.182529] start_creating+0xc9/0x220 [ 95.186393] debugfs_create_dir+0x1f/0x440 [ 95.190608] bdi_register_va.part.0+0x1f7/0x750 [ 95.195255] bdi_register+0x12a/0x140 [ 95.199034] ? bdi_register_va+0x80/0x80 [ 95.203076] ? vsnprintf+0x2cc/0x14f0 [ 95.206856] bdi_register_owner+0x59/0x100 [ 95.211070] __device_add_disk+0xd58/0x10c0 [ 95.215402] ? sprintf+0xc0/0x100 [ 95.218834] ? blk_alloc_devt+0x2d0/0x2d0 [ 95.222962] ? __raw_spin_lock_init+0x28/0x100 [ 95.227520] ? __lockdep_init_map+0x100/0x5a0 [ 95.231995] loop_add+0x628/0x8a0 [ 95.235428] loop_control_ioctl+0x16c/0x480 [ 95.239727] ? loop_lookup+0x1d0/0x1d0 [ 95.243605] ? __vfs_write+0xff/0x770 [ 95.247388] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 95.252298] ? common_file_perm+0x4e5/0x850 [ 95.256609] ? loop_lookup+0x1d0/0x1d0 [ 95.260476] do_vfs_ioctl+0xcdb/0x12e0 [ 95.264346] ? vfs_write+0x3d7/0x540 [ 95.268045] ? ioctl_preallocate+0x200/0x200 [ 95.272434] ? lock_downgrade+0x720/0x720 [ 95.276563] ? check_preemption_disabled+0x41/0x280 [ 95.281557] ? vfs_write+0x393/0x540 [ 95.285248] ? ksys_write+0x1c8/0x2a0 [ 95.289029] ksys_ioctl+0x9b/0xc0 [ 95.292462] __x64_sys_ioctl+0x6f/0xb0 [ 95.296329] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 95.300890] do_syscall_64+0xf9/0x620 [ 95.304670] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.309840] RIP: 0033:0x7f06838f9079 [ 95.313536] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 95.332421] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 95.340106] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 95.347353] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 95.354691] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 95.361937] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 95.369186] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 95.427908] FAULT_INJECTION: forcing a failure. [ 95.427908] name failslab, interval 1, probability 0, space 0, times 0 [ 95.439969] CPU: 0 PID: 8484 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 95.447846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 95.457180] Call Trace: [ 95.459756] dump_stack+0x1fc/0x2ef [ 95.463381] should_fail.cold+0xa/0xf [ 95.467162] ? setup_fault_attr+0x200/0x200 [ 95.471465] ? lock_acquire+0x170/0x3c0 [ 95.475419] __should_failslab+0x115/0x180 [ 95.479651] should_failslab+0x5/0x10 [ 95.483441] kmem_cache_alloc_trace+0x284/0x380 [ 95.488097] ? wait_for_completion_io+0x10/0x10 [ 95.492746] ? kobj_ns_initial+0x90/0x90 [ 95.496793] call_usermodehelper_setup+0x84/0x300 [ 95.501619] kobject_uevent_env+0xe83/0x1480 [ 95.506015] device_add+0xb2f/0x16d0 [ 95.509729] ? device_check_offline+0x280/0x280 [ 95.514398] ? kfree_const+0x51/0x60 [ 95.518092] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 95.523087] ? kfree+0x1e2/0x210 [ 95.526439] device_create_groups_vargs+0x1f4/0x270 [ 95.531435] device_create+0xdf/0x120 [ 95.535215] ? device_create_vargs+0x50/0x50 [ 95.539608] ? pointer+0x850/0x850 [ 95.543137] bdi_register_va.part.0+0x4c/0x750 [ 95.547699] bdi_register+0x12a/0x140 [ 95.551479] ? bdi_register_va+0x80/0x80 [ 95.555522] ? vsnprintf+0x2cc/0x14f0 [ 95.559311] bdi_register_owner+0x59/0x100 [ 95.563532] __device_add_disk+0xd58/0x10c0 [ 95.567842] ? sprintf+0xc0/0x100 [ 95.571277] ? blk_alloc_devt+0x2d0/0x2d0 [ 95.575407] ? __raw_spin_lock_init+0x28/0x100 [ 95.579972] ? __lockdep_init_map+0x100/0x5a0 [ 95.584449] loop_add+0x628/0x8a0 [ 95.587887] loop_control_ioctl+0x16c/0x480 [ 95.592189] ? loop_lookup+0x1d0/0x1d0 [ 95.596058] ? __vfs_write+0xff/0x770 [ 95.599837] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 95.604745] ? common_file_perm+0x4e5/0x850 [ 95.609054] ? loop_lookup+0x1d0/0x1d0 [ 95.612921] do_vfs_ioctl+0xcdb/0x12e0 [ 95.616787] ? vfs_write+0x3d7/0x540 [ 95.620478] ? ioctl_preallocate+0x200/0x200 [ 95.624865] ? lock_downgrade+0x720/0x720 [ 95.628994] ? check_preemption_disabled+0x41/0x280 [ 95.633992] ? vfs_write+0x393/0x540 [ 95.637687] ? ksys_write+0x1c8/0x2a0 [ 95.641466] ksys_ioctl+0x9b/0xc0 [ 95.644899] __x64_sys_ioctl+0x6f/0xb0 [ 95.648770] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 95.653349] do_syscall_64+0xf9/0x620 [ 95.657129] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.662297] RIP: 0033:0x7f06838f9079 executing program [ 95.665988] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 95.684869] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 95.692559] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 95.699808] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 95.707055] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 95.714303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 95.721553] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 95.787982] FAULT_INJECTION: forcing a failure. [ 95.787982] name failslab, interval 1, probability 0, space 0, times 0 [ 95.799429] CPU: 0 PID: 8492 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 95.807292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 95.816626] Call Trace: [ 95.819197] dump_stack+0x1fc/0x2ef [ 95.822806] should_fail.cold+0xa/0xf [ 95.826585] ? setup_fault_attr+0x200/0x200 [ 95.830884] ? lock_acquire+0x170/0x3c0 [ 95.834839] __should_failslab+0x115/0x180 [ 95.839055] should_failslab+0x5/0x10 [ 95.842833] kmem_cache_alloc_trace+0x284/0x380 [ 95.847478] ? wait_for_completion_io+0x10/0x10 [ 95.852127] ? kobj_ns_initial+0x90/0x90 [ 95.856169] call_usermodehelper_setup+0x84/0x300 [ 95.860994] kobject_uevent_env+0xe83/0x1480 [ 95.865391] device_add+0xb2f/0x16d0 [ 95.869088] ? device_check_offline+0x280/0x280 [ 95.873739] ? kfree_const+0x51/0x60 [ 95.877432] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 95.882425] ? kfree+0x1e2/0x210 [ 95.885772] device_create_groups_vargs+0x1f4/0x270 [ 95.890766] device_create+0xdf/0x120 [ 95.894545] ? device_create_vargs+0x50/0x50 [ 95.898936] ? pointer+0x850/0x850 [ 95.902461] bdi_register_va.part.0+0x4c/0x750 [ 95.907025] bdi_register+0x12a/0x140 [ 95.910805] ? bdi_register_va+0x80/0x80 [ 95.914846] ? vsnprintf+0x2cc/0x14f0 [ 95.918627] bdi_register_owner+0x59/0x100 [ 95.922841] __device_add_disk+0xd58/0x10c0 [ 95.927144] ? sprintf+0xc0/0x100 [ 95.930575] ? blk_alloc_devt+0x2d0/0x2d0 [ 95.934710] ? __raw_spin_lock_init+0x28/0x100 [ 95.939270] ? __lockdep_init_map+0x100/0x5a0 [ 95.943744] loop_add+0x628/0x8a0 [ 95.947178] loop_control_ioctl+0x16c/0x480 [ 95.951477] ? loop_lookup+0x1d0/0x1d0 [ 95.955342] ? __vfs_write+0xff/0x770 [ 95.959129] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 95.964037] ? common_file_perm+0x4e5/0x850 [ 95.968338] ? loop_lookup+0x1d0/0x1d0 [ 95.972203] do_vfs_ioctl+0xcdb/0x12e0 [ 95.976072] ? vfs_write+0x3d7/0x540 [ 95.979764] ? ioctl_preallocate+0x200/0x200 [ 95.984151] ? lock_downgrade+0x720/0x720 [ 95.988282] ? check_preemption_disabled+0x41/0x280 [ 95.993278] ? vfs_write+0x393/0x540 [ 95.996972] ? ksys_write+0x1c8/0x2a0 [ 96.000753] ksys_ioctl+0x9b/0xc0 [ 96.004185] __x64_sys_ioctl+0x6f/0xb0 [ 96.008051] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 96.012611] do_syscall_64+0xf9/0x620 [ 96.016398] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.021568] RIP: 0033:0x7f06838f9079 executing program [ 96.025282] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 96.044165] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 96.051849] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 96.059094] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 96.066341] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 96.073587] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 96.080831] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 96.158274] FAULT_INJECTION: forcing a failure. [ 96.158274] name failslab, interval 1, probability 0, space 0, times 0 [ 96.169576] CPU: 0 PID: 8499 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 96.177535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 96.186863] Call Trace: [ 96.189430] dump_stack+0x1fc/0x2ef [ 96.193037] should_fail.cold+0xa/0xf [ 96.196822] ? setup_fault_attr+0x200/0x200 [ 96.201124] ? lock_acquire+0x170/0x3c0 [ 96.205078] __should_failslab+0x115/0x180 [ 96.209297] should_failslab+0x5/0x10 [ 96.213077] kmem_cache_alloc+0x277/0x370 [ 96.217205] __d_alloc+0x2b/0xa10 [ 96.220639] d_alloc+0x4a/0x230 [ 96.223905] d_alloc_parallel+0xeb/0x19e0 [ 96.228038] ? mark_held_locks+0xf0/0xf0 [ 96.232082] ? __d_lookup_rcu+0x6b0/0x6b0 [ 96.236217] ? device_add+0xbf8/0x16d0 [ 96.240090] ? mark_held_locks+0xf0/0xf0 [ 96.244131] ? __lockdep_init_map+0x100/0x5a0 [ 96.248602] ? __lockdep_init_map+0x100/0x5a0 [ 96.253079] __lookup_slow+0x18d/0x4a0 [ 96.256955] ? check_preemption_disabled+0x41/0x280 [ 96.261958] ? follow_dotdot_rcu+0x1040/0x1040 [ 96.266521] ? __d_lookup+0x411/0x710 [ 96.270308] ? d_lookup+0x18e/0x250 [ 96.273920] lookup_one_len+0x163/0x190 [ 96.277873] ? try_lookup_one_len+0x180/0x180 [ 96.282349] start_creating+0xc9/0x220 [ 96.286216] debugfs_create_dir+0x1f/0x440 [ 96.290431] bdi_register_va.part.0+0x1f7/0x750 [ 96.295078] bdi_register+0x12a/0x140 [ 96.298856] ? bdi_register_va+0x80/0x80 [ 96.302902] ? vsnprintf+0x2cc/0x14f0 [ 96.306682] bdi_register_owner+0x59/0x100 [ 96.310921] __device_add_disk+0xd58/0x10c0 [ 96.315223] ? sprintf+0xc0/0x100 [ 96.318653] ? blk_alloc_devt+0x2d0/0x2d0 [ 96.322780] ? __raw_spin_lock_init+0x28/0x100 [ 96.327341] ? __lockdep_init_map+0x100/0x5a0 [ 96.331817] loop_add+0x628/0x8a0 [ 96.335251] loop_control_ioctl+0x16c/0x480 [ 96.339551] ? loop_lookup+0x1d0/0x1d0 [ 96.343423] ? __vfs_write+0xff/0x770 [ 96.347216] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 96.352125] ? common_file_perm+0x4e5/0x850 [ 96.356424] ? loop_lookup+0x1d0/0x1d0 [ 96.360291] do_vfs_ioctl+0xcdb/0x12e0 [ 96.364158] ? vfs_write+0x3d7/0x540 [ 96.367848] ? ioctl_preallocate+0x200/0x200 [ 96.372251] ? lock_downgrade+0x720/0x720 [ 96.376380] ? check_preemption_disabled+0x41/0x280 [ 96.381381] ? vfs_write+0x393/0x540 [ 96.385073] ? ksys_write+0x1c8/0x2a0 [ 96.388852] ksys_ioctl+0x9b/0xc0 [ 96.392298] __x64_sys_ioctl+0x6f/0xb0 [ 96.396182] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 96.400743] do_syscall_64+0xf9/0x620 [ 96.404525] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.409691] RIP: 0033:0x7f06838f9079 [ 96.413384] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 96.432263] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 96.439949] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 96.447196] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 96.454443] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 96.461689] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 96.468938] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 96.537554] FAULT_INJECTION: forcing a failure. [ 96.537554] name failslab, interval 1, probability 0, space 0, times 0 [ 96.549017] CPU: 1 PID: 8508 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 96.556884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 96.566218] Call Trace: [ 96.568786] dump_stack+0x1fc/0x2ef [ 96.572395] should_fail.cold+0xa/0xf [ 96.576189] ? setup_fault_attr+0x200/0x200 [ 96.580496] ? lock_acquire+0x170/0x3c0 [ 96.584460] __should_failslab+0x115/0x180 [ 96.588672] should_failslab+0x5/0x10 [ 96.592451] kmem_cache_alloc+0x277/0x370 [ 96.596582] __d_alloc+0x2b/0xa10 [ 96.600016] d_alloc+0x4a/0x230 [ 96.603276] d_alloc_parallel+0xeb/0x19e0 [ 96.607410] ? mark_held_locks+0xf0/0xf0 [ 96.611452] ? __d_lookup_rcu+0x6b0/0x6b0 [ 96.615579] ? device_add+0xbf8/0x16d0 [ 96.619449] ? mark_held_locks+0xf0/0xf0 [ 96.623487] ? __lockdep_init_map+0x100/0x5a0 [ 96.627958] ? __lockdep_init_map+0x100/0x5a0 [ 96.632436] __lookup_slow+0x18d/0x4a0 [ 96.636316] ? check_preemption_disabled+0x41/0x280 [ 96.641315] ? follow_dotdot_rcu+0x1040/0x1040 [ 96.645877] ? __d_lookup+0x411/0x710 [ 96.649659] ? d_lookup+0x18e/0x250 [ 96.653266] lookup_one_len+0x163/0x190 [ 96.657221] ? try_lookup_one_len+0x180/0x180 [ 96.661695] start_creating+0xc9/0x220 [ 96.665563] debugfs_create_dir+0x1f/0x440 [ 96.669777] bdi_register_va.part.0+0x1f7/0x750 [ 96.674426] bdi_register+0x12a/0x140 [ 96.678211] ? bdi_register_va+0x80/0x80 [ 96.682255] ? vsnprintf+0x2cc/0x14f0 [ 96.686038] bdi_register_owner+0x59/0x100 [ 96.690251] __device_add_disk+0xd58/0x10c0 [ 96.694551] ? sprintf+0xc0/0x100 [ 96.698005] ? blk_alloc_devt+0x2d0/0x2d0 [ 96.702133] ? __raw_spin_lock_init+0x28/0x100 [ 96.706693] ? __lockdep_init_map+0x100/0x5a0 [ 96.711175] loop_add+0x628/0x8a0 [ 96.714608] loop_control_ioctl+0x16c/0x480 [ 96.718910] ? loop_lookup+0x1d0/0x1d0 [ 96.722776] ? __vfs_write+0xff/0x770 [ 96.726552] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 96.731461] ? common_file_perm+0x4e5/0x850 [ 96.735766] ? loop_lookup+0x1d0/0x1d0 [ 96.739634] do_vfs_ioctl+0xcdb/0x12e0 [ 96.743502] ? vfs_write+0x3d7/0x540 [ 96.747210] ? ioctl_preallocate+0x200/0x200 [ 96.751598] ? lock_downgrade+0x720/0x720 [ 96.755725] ? check_preemption_disabled+0x41/0x280 [ 96.760723] ? vfs_write+0x393/0x540 [ 96.764419] ? ksys_write+0x1c8/0x2a0 [ 96.768203] ksys_ioctl+0x9b/0xc0 [ 96.771636] __x64_sys_ioctl+0x6f/0xb0 [ 96.775526] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 96.780084] do_syscall_64+0xf9/0x620 [ 96.783872] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.789042] RIP: 0033:0x7f06838f9079 [ 96.792733] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 96.811612] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 96.819296] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 96.826545] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 96.833796] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 96.841057] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 96.848312] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 96.897453] FAULT_INJECTION: forcing a failure. [ 96.897453] name failslab, interval 1, probability 0, space 0, times 0 [ 96.909617] CPU: 0 PID: 8516 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 96.917496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 96.926832] Call Trace: [ 96.929414] dump_stack+0x1fc/0x2ef [ 96.933025] should_fail.cold+0xa/0xf [ 96.936809] ? setup_fault_attr+0x200/0x200 [ 96.941109] ? lock_acquire+0x170/0x3c0 [ 96.945076] __should_failslab+0x115/0x180 [ 96.949294] should_failslab+0x5/0x10 [ 96.953075] kmem_cache_alloc+0x277/0x370 [ 96.957206] __d_alloc+0x2b/0xa10 [ 96.960639] ? lock_downgrade+0x720/0x720 [ 96.964774] ? lock_acquire+0x170/0x3c0 [ 96.968729] d_alloc+0x4a/0x230 [ 96.971987] d_alloc_parallel+0xeb/0x19e0 [ 96.976118] ? mark_held_locks+0xf0/0xf0 [ 96.980162] ? __lock_acquire+0x6de/0x3ff0 [ 96.984377] ? __d_lookup_rcu+0x6b0/0x6b0 [ 96.988501] ? mark_held_locks+0xf0/0xf0 [ 96.992541] ? mark_held_locks+0xf0/0xf0 [ 96.996582] ? __lockdep_init_map+0x100/0x5a0 [ 97.001056] ? __lockdep_init_map+0x100/0x5a0 [ 97.005545] __lookup_slow+0x18d/0x4a0 [ 97.009429] ? check_preemption_disabled+0x41/0x280 [ 97.014439] ? follow_dotdot_rcu+0x1040/0x1040 [ 97.019010] ? __d_lookup+0x411/0x710 [ 97.022794] ? d_lookup+0x18e/0x250 [ 97.026402] lookup_one_len+0x163/0x190 [ 97.030355] ? try_lookup_one_len+0x180/0x180 [ 97.034832] start_creating+0xc9/0x220 [ 97.038698] __debugfs_create_file+0x5e/0x480 [ 97.043175] bdi_register_va.part.0+0x24b/0x750 [ 97.047825] bdi_register+0x12a/0x140 [ 97.051602] ? bdi_register_va+0x80/0x80 [ 97.055650] ? vsnprintf+0x2cc/0x14f0 [ 97.059430] bdi_register_owner+0x59/0x100 [ 97.063642] __device_add_disk+0xd58/0x10c0 [ 97.067946] ? sprintf+0xc0/0x100 [ 97.071378] ? blk_alloc_devt+0x2d0/0x2d0 [ 97.075508] ? __raw_spin_lock_init+0x28/0x100 [ 97.080069] ? __lockdep_init_map+0x100/0x5a0 [ 97.084548] loop_add+0x628/0x8a0 [ 97.087998] loop_control_ioctl+0x16c/0x480 [ 97.092330] ? loop_lookup+0x1d0/0x1d0 [ 97.096206] ? __vfs_write+0xff/0x770 [ 97.099988] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 97.104897] ? common_file_perm+0x4e5/0x850 [ 97.109205] ? loop_lookup+0x1d0/0x1d0 [ 97.113078] do_vfs_ioctl+0xcdb/0x12e0 [ 97.116948] ? vfs_write+0x3d7/0x540 [ 97.120642] ? ioctl_preallocate+0x200/0x200 [ 97.125033] ? lock_downgrade+0x720/0x720 [ 97.129170] ? check_preemption_disabled+0x41/0x280 [ 97.134168] ? vfs_write+0x393/0x540 [ 97.137862] ? ksys_write+0x1c8/0x2a0 [ 97.141641] ksys_ioctl+0x9b/0xc0 [ 97.145072] __x64_sys_ioctl+0x6f/0xb0 [ 97.148937] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 97.153498] do_syscall_64+0xf9/0x620 [ 97.157287] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.162454] RIP: 0033:0x7f06838f9079 [ 97.166154] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 97.185034] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 97.192719] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 97.199966] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 97.207214] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 97.214462] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 97.221710] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 97.297742] FAULT_INJECTION: forcing a failure. [ 97.297742] name failslab, interval 1, probability 0, space 0, times 0 [ 97.309421] CPU: 1 PID: 8524 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 97.317293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 97.326624] Call Trace: [ 97.329193] dump_stack+0x1fc/0x2ef [ 97.332800] should_fail.cold+0xa/0xf [ 97.336586] ? setup_fault_attr+0x200/0x200 [ 97.340887] ? lock_acquire+0x170/0x3c0 [ 97.344843] __should_failslab+0x115/0x180 [ 97.349059] should_failslab+0x5/0x10 [ 97.352840] kmem_cache_alloc+0x277/0x370 [ 97.356977] __d_alloc+0x2b/0xa10 [ 97.360412] d_alloc+0x4a/0x230 [ 97.363674] d_alloc_parallel+0xeb/0x19e0 [ 97.367806] ? mark_held_locks+0xf0/0xf0 [ 97.372196] ? __d_lookup_rcu+0x6b0/0x6b0 [ 97.376323] ? device_add+0xbf8/0x16d0 [ 97.380193] ? mark_held_locks+0xf0/0xf0 [ 97.384237] ? __lockdep_init_map+0x100/0x5a0 [ 97.388717] ? __lockdep_init_map+0x100/0x5a0 [ 97.393194] __lookup_slow+0x18d/0x4a0 [ 97.397063] ? check_preemption_disabled+0x41/0x280 [ 97.402060] ? follow_dotdot_rcu+0x1040/0x1040 [ 97.406636] ? __d_lookup+0x411/0x710 [ 97.410423] ? d_lookup+0x18e/0x250 [ 97.414037] lookup_one_len+0x163/0x190 [ 97.417997] ? try_lookup_one_len+0x180/0x180 [ 97.422478] start_creating+0xc9/0x220 [ 97.426347] debugfs_create_dir+0x1f/0x440 [ 97.430570] bdi_register_va.part.0+0x1f7/0x750 [ 97.435226] bdi_register+0x12a/0x140 [ 97.439008] ? bdi_register_va+0x80/0x80 [ 97.443050] ? vsnprintf+0x2cc/0x14f0 [ 97.446835] bdi_register_owner+0x59/0x100 [ 97.451051] __device_add_disk+0xd58/0x10c0 [ 97.455369] ? sprintf+0xc0/0x100 [ 97.458803] ? blk_alloc_devt+0x2d0/0x2d0 [ 97.462937] ? __raw_spin_lock_init+0x28/0x100 [ 97.467496] ? __lockdep_init_map+0x100/0x5a0 [ 97.471970] loop_add+0x628/0x8a0 [ 97.475404] loop_control_ioctl+0x16c/0x480 [ 97.479709] ? loop_lookup+0x1d0/0x1d0 [ 97.483580] ? __vfs_write+0xff/0x770 [ 97.487361] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 97.492272] ? common_file_perm+0x4e5/0x850 [ 97.496578] ? loop_lookup+0x1d0/0x1d0 [ 97.500451] do_vfs_ioctl+0xcdb/0x12e0 [ 97.504320] ? vfs_write+0x3d7/0x540 [ 97.508010] ? ioctl_preallocate+0x200/0x200 [ 97.512423] ? lock_downgrade+0x720/0x720 [ 97.516551] ? check_preemption_disabled+0x41/0x280 [ 97.521546] ? vfs_write+0x393/0x540 [ 97.526280] ? ksys_write+0x1c8/0x2a0 [ 97.530069] ksys_ioctl+0x9b/0xc0 [ 97.533516] __x64_sys_ioctl+0x6f/0xb0 [ 97.537497] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 97.542062] do_syscall_64+0xf9/0x620 [ 97.545850] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.551025] RIP: 0033:0x7f06838f9079 [ 97.554720] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 97.573606] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 97.581296] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 97.588547] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 97.595792] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 97.603038] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 97.610287] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 97.687749] FAULT_INJECTION: forcing a failure. [ 97.687749] name failslab, interval 1, probability 0, space 0, times 0 [ 97.699082] CPU: 0 PID: 8533 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 97.706943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 97.716272] Call Trace: [ 97.718848] dump_stack+0x1fc/0x2ef [ 97.722455] should_fail.cold+0xa/0xf [ 97.726236] ? setup_fault_attr+0x200/0x200 [ 97.730535] ? lock_acquire+0x170/0x3c0 [ 97.734490] __should_failslab+0x115/0x180 [ 97.738705] should_failslab+0x5/0x10 [ 97.742483] kmem_cache_alloc+0x277/0x370 [ 97.746609] __d_alloc+0x2b/0xa10 [ 97.750040] ? lock_downgrade+0x720/0x720 [ 97.754164] ? lock_acquire+0x170/0x3c0 [ 97.758117] d_alloc+0x4a/0x230 [ 97.761377] d_alloc_parallel+0xeb/0x19e0 [ 97.765510] ? mark_held_locks+0xf0/0xf0 [ 97.769549] ? __lock_acquire+0x6de/0x3ff0 [ 97.773761] ? __d_lookup_rcu+0x6b0/0x6b0 [ 97.777886] ? mark_held_locks+0xf0/0xf0 [ 97.781925] ? mark_held_locks+0xf0/0xf0 [ 97.785966] ? __lockdep_init_map+0x100/0x5a0 [ 97.790440] ? __lockdep_init_map+0x100/0x5a0 [ 97.794914] __lookup_slow+0x18d/0x4a0 [ 97.798782] ? check_preemption_disabled+0x41/0x280 [ 97.803779] ? follow_dotdot_rcu+0x1040/0x1040 [ 97.808341] ? __d_lookup+0x411/0x710 [ 97.812124] ? d_lookup+0x18e/0x250 [ 97.815731] lookup_one_len+0x163/0x190 [ 97.819682] ? try_lookup_one_len+0x180/0x180 [ 97.824158] start_creating+0xc9/0x220 [ 97.828022] __debugfs_create_file+0x5e/0x480 [ 97.832496] bdi_register_va.part.0+0x24b/0x750 [ 97.837144] bdi_register+0x12a/0x140 [ 97.840922] ? bdi_register_va+0x80/0x80 [ 97.844965] ? vsnprintf+0x2cc/0x14f0 [ 97.848745] bdi_register_owner+0x59/0x100 [ 97.852957] __device_add_disk+0xd58/0x10c0 [ 97.857262] ? sprintf+0xc0/0x100 [ 97.860699] ? blk_alloc_devt+0x2d0/0x2d0 [ 97.864828] ? __raw_spin_lock_init+0x28/0x100 [ 97.869388] ? __lockdep_init_map+0x100/0x5a0 [ 97.873862] loop_add+0x628/0x8a0 [ 97.877300] loop_control_ioctl+0x16c/0x480 [ 97.881598] ? loop_lookup+0x1d0/0x1d0 [ 97.885465] ? __vfs_write+0xff/0x770 [ 97.889243] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 97.894149] ? common_file_perm+0x4e5/0x850 [ 97.898448] ? loop_lookup+0x1d0/0x1d0 [ 97.902313] do_vfs_ioctl+0xcdb/0x12e0 [ 97.906176] ? vfs_write+0x3d7/0x540 [ 97.909870] ? ioctl_preallocate+0x200/0x200 [ 97.914257] ? lock_downgrade+0x720/0x720 [ 97.918387] ? check_preemption_disabled+0x41/0x280 [ 97.923382] ? vfs_write+0x393/0x540 [ 97.927080] ? ksys_write+0x1c8/0x2a0 [ 97.930859] ksys_ioctl+0x9b/0xc0 [ 97.934291] __x64_sys_ioctl+0x6f/0xb0 [ 97.938155] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 97.942716] do_syscall_64+0xf9/0x620 [ 97.946499] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.951663] RIP: 0033:0x7f06838f9079 [ 97.955362] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 97.974239] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 97.981934] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 executing program [ 97.989186] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 97.996442] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 98.003694] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 98.010941] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 98.058355] FAULT_INJECTION: forcing a failure. [ 98.058355] name failslab, interval 1, probability 0, space 0, times 0 [ 98.069888] CPU: 0 PID: 8542 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 98.077764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 98.087298] Call Trace: [ 98.089876] dump_stack+0x1fc/0x2ef [ 98.093488] should_fail.cold+0xa/0xf [ 98.097279] ? setup_fault_attr+0x200/0x200 [ 98.101584] ? lock_acquire+0x170/0x3c0 [ 98.105547] __should_failslab+0x115/0x180 [ 98.109841] should_failslab+0x5/0x10 [ 98.113624] kmem_cache_alloc+0x277/0x370 [ 98.117751] __d_alloc+0x2b/0xa10 [ 98.121187] ? lock_downgrade+0x720/0x720 [ 98.125321] ? lock_acquire+0x170/0x3c0 [ 98.129282] d_alloc+0x4a/0x230 [ 98.132550] d_alloc_parallel+0xeb/0x19e0 [ 98.136682] ? mark_held_locks+0xf0/0xf0 [ 98.140723] ? __lock_acquire+0x6de/0x3ff0 [ 98.144936] ? __d_lookup_rcu+0x6b0/0x6b0 [ 98.149070] ? mark_held_locks+0xf0/0xf0 [ 98.153120] ? mark_held_locks+0xf0/0xf0 [ 98.157164] ? __lockdep_init_map+0x100/0x5a0 [ 98.161644] ? __lockdep_init_map+0x100/0x5a0 [ 98.166124] __lookup_slow+0x18d/0x4a0 [ 98.169999] ? check_preemption_disabled+0x41/0x280 [ 98.174995] ? follow_dotdot_rcu+0x1040/0x1040 [ 98.179568] ? __d_lookup+0x411/0x710 [ 98.183357] ? d_lookup+0x18e/0x250 [ 98.186968] lookup_one_len+0x163/0x190 [ 98.190925] ? try_lookup_one_len+0x180/0x180 [ 98.195405] start_creating+0xc9/0x220 [ 98.199274] __debugfs_create_file+0x5e/0x480 [ 98.203761] bdi_register_va.part.0+0x24b/0x750 [ 98.208417] bdi_register+0x12a/0x140 [ 98.212198] ? bdi_register_va+0x80/0x80 [ 98.216243] ? vsnprintf+0x2cc/0x14f0 [ 98.220028] bdi_register_owner+0x59/0x100 [ 98.224270] __device_add_disk+0xd58/0x10c0 [ 98.228577] ? sprintf+0xc0/0x100 [ 98.232009] ? blk_alloc_devt+0x2d0/0x2d0 [ 98.236139] ? __raw_spin_lock_init+0x28/0x100 [ 98.240702] ? __lockdep_init_map+0x100/0x5a0 [ 98.245180] loop_add+0x628/0x8a0 [ 98.248630] loop_control_ioctl+0x16c/0x480 [ 98.252936] ? loop_lookup+0x1d0/0x1d0 [ 98.256807] ? __vfs_write+0xff/0x770 [ 98.260595] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 98.265508] ? common_file_perm+0x4e5/0x850 [ 98.269811] ? loop_lookup+0x1d0/0x1d0 [ 98.273684] do_vfs_ioctl+0xcdb/0x12e0 [ 98.277567] ? vfs_write+0x3d7/0x540 [ 98.281266] ? ioctl_preallocate+0x200/0x200 [ 98.285661] ? lock_downgrade+0x720/0x720 [ 98.289792] ? check_preemption_disabled+0x41/0x280 [ 98.294793] ? vfs_write+0x393/0x540 [ 98.298492] ? ksys_write+0x1c8/0x2a0 [ 98.302275] ksys_ioctl+0x9b/0xc0 [ 98.305712] __x64_sys_ioctl+0x6f/0xb0 [ 98.309582] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 98.314177] do_syscall_64+0xf9/0x620 [ 98.317964] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.323140] RIP: 0033:0x7f06838f9079 [ 98.326848] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 98.345726] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program executing program [ 98.353415] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 98.360664] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 98.367913] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 98.375162] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 98.382417] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 98.457306] FAULT_INJECTION: forcing a failure. [ 98.457306] name failslab, interval 1, probability 0, space 0, times 0 [ 98.469313] CPU: 0 PID: 8553 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 98.477201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 98.486535] Call Trace: [ 98.489107] dump_stack+0x1fc/0x2ef [ 98.492720] should_fail.cold+0xa/0xf [ 98.496509] ? setup_fault_attr+0x200/0x200 [ 98.500813] ? lock_acquire+0x170/0x3c0 [ 98.504771] __should_failslab+0x115/0x180 [ 98.508986] should_failslab+0x5/0x10 [ 98.512766] kmem_cache_alloc+0x277/0x370 [ 98.516897] __d_alloc+0x2b/0xa10 [ 98.520331] ? lock_downgrade+0x720/0x720 [ 98.524459] ? lock_acquire+0x170/0x3c0 [ 98.528416] d_alloc+0x4a/0x230 [ 98.531679] d_alloc_parallel+0xeb/0x19e0 [ 98.535814] ? mark_held_locks+0xf0/0xf0 [ 98.539858] ? __lock_acquire+0x6de/0x3ff0 [ 98.544096] ? __d_lookup_rcu+0x6b0/0x6b0 [ 98.548227] ? mark_held_locks+0xf0/0xf0 [ 98.552275] ? mark_held_locks+0xf0/0xf0 [ 98.556321] ? __lockdep_init_map+0x100/0x5a0 [ 98.560796] ? __lockdep_init_map+0x100/0x5a0 [ 98.565292] __lookup_slow+0x18d/0x4a0 [ 98.569161] ? check_preemption_disabled+0x41/0x280 [ 98.574160] ? follow_dotdot_rcu+0x1040/0x1040 [ 98.578737] ? __d_lookup+0x411/0x710 [ 98.582529] ? d_lookup+0x18e/0x250 [ 98.586145] lookup_one_len+0x163/0x190 [ 98.590104] ? try_lookup_one_len+0x180/0x180 [ 98.594583] start_creating+0xc9/0x220 [ 98.598455] __debugfs_create_file+0x5e/0x480 [ 98.602934] bdi_register_va.part.0+0x24b/0x750 [ 98.607583] bdi_register+0x12a/0x140 [ 98.611362] ? bdi_register_va+0x80/0x80 [ 98.615407] ? vsnprintf+0x2cc/0x14f0 [ 98.619191] bdi_register_owner+0x59/0x100 [ 98.623408] __device_add_disk+0xd58/0x10c0 [ 98.627716] ? sprintf+0xc0/0x100 [ 98.631158] ? blk_alloc_devt+0x2d0/0x2d0 [ 98.635300] ? __raw_spin_lock_init+0x28/0x100 [ 98.639869] ? __lockdep_init_map+0x100/0x5a0 [ 98.644359] loop_add+0x628/0x8a0 [ 98.647793] loop_control_ioctl+0x16c/0x480 [ 98.652096] ? loop_lookup+0x1d0/0x1d0 [ 98.655966] ? __vfs_write+0xff/0x770 [ 98.659746] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 98.664653] ? common_file_perm+0x4e5/0x850 [ 98.668956] ? loop_lookup+0x1d0/0x1d0 [ 98.672827] do_vfs_ioctl+0xcdb/0x12e0 [ 98.676695] ? vfs_write+0x3d7/0x540 [ 98.680392] ? ioctl_preallocate+0x200/0x200 [ 98.684781] ? lock_downgrade+0x720/0x720 [ 98.688910] ? check_preemption_disabled+0x41/0x280 [ 98.693911] ? vfs_write+0x393/0x540 [ 98.697609] ? ksys_write+0x1c8/0x2a0 [ 98.701393] ksys_ioctl+0x9b/0xc0 [ 98.704831] __x64_sys_ioctl+0x6f/0xb0 [ 98.708710] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 98.713282] do_syscall_64+0xf9/0x620 [ 98.717066] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.722234] RIP: 0033:0x7f06838f9079 [ 98.725931] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 98.744816] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 98.752504] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 98.759754] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 98.767006] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 98.774258] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 98.781508] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 98.848258] FAULT_INJECTION: forcing a failure. [ 98.848258] name failslab, interval 1, probability 0, space 0, times 0 [ 98.859559] CPU: 0 PID: 8563 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 98.867441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 98.876776] Call Trace: [ 98.879358] dump_stack+0x1fc/0x2ef [ 98.882977] should_fail.cold+0xa/0xf [ 98.886767] ? setup_fault_attr+0x200/0x200 [ 98.891075] ? lock_acquire+0x170/0x3c0 [ 98.895039] __should_failslab+0x115/0x180 [ 98.899257] should_failslab+0x5/0x10 [ 98.903039] kmem_cache_alloc+0x277/0x370 [ 98.907170] __d_alloc+0x2b/0xa10 [ 98.910610] ? lock_downgrade+0x720/0x720 [ 98.914739] ? lock_acquire+0x170/0x3c0 [ 98.918711] d_alloc+0x4a/0x230 [ 98.921987] d_alloc_parallel+0xeb/0x19e0 [ 98.926134] ? mark_held_locks+0xf0/0xf0 [ 98.930187] ? __lock_acquire+0x6de/0x3ff0 [ 98.934406] ? __d_lookup_rcu+0x6b0/0x6b0 [ 98.938536] ? mark_held_locks+0xf0/0xf0 [ 98.942580] ? mark_held_locks+0xf0/0xf0 [ 98.946626] ? __lockdep_init_map+0x100/0x5a0 [ 98.951107] ? __lockdep_init_map+0x100/0x5a0 [ 98.955589] __lookup_slow+0x18d/0x4a0 [ 98.959464] ? check_preemption_disabled+0x41/0x280 [ 98.964465] ? follow_dotdot_rcu+0x1040/0x1040 [ 98.969032] ? __d_lookup+0x411/0x710 [ 98.972820] ? d_lookup+0x18e/0x250 [ 98.976433] lookup_one_len+0x163/0x190 [ 98.980390] ? try_lookup_one_len+0x180/0x180 [ 98.984872] start_creating+0xc9/0x220 [ 98.988741] __debugfs_create_file+0x5e/0x480 [ 98.993250] bdi_register_va.part.0+0x24b/0x750 [ 98.997909] bdi_register+0x12a/0x140 [ 99.001689] ? bdi_register_va+0x80/0x80 [ 99.005735] ? vsnprintf+0x2cc/0x14f0 [ 99.009520] bdi_register_owner+0x59/0x100 [ 99.013740] __device_add_disk+0xd58/0x10c0 [ 99.018048] ? sprintf+0xc0/0x100 [ 99.021490] ? blk_alloc_devt+0x2d0/0x2d0 [ 99.025625] ? __raw_spin_lock_init+0x28/0x100 [ 99.030206] ? __lockdep_init_map+0x100/0x5a0 [ 99.034691] loop_add+0x628/0x8a0 [ 99.038142] loop_control_ioctl+0x16c/0x480 [ 99.042455] ? loop_lookup+0x1d0/0x1d0 [ 99.046327] ? __vfs_write+0xff/0x770 [ 99.050112] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 99.055026] ? common_file_perm+0x4e5/0x850 [ 99.059334] ? loop_lookup+0x1d0/0x1d0 [ 99.063204] do_vfs_ioctl+0xcdb/0x12e0 [ 99.067073] ? vfs_write+0x3d7/0x540 [ 99.070779] ? ioctl_preallocate+0x200/0x200 [ 99.075183] ? lock_downgrade+0x720/0x720 [ 99.079342] ? check_preemption_disabled+0x41/0x280 [ 99.084343] ? vfs_write+0x393/0x540 [ 99.088041] ? ksys_write+0x1c8/0x2a0 [ 99.091828] ksys_ioctl+0x9b/0xc0 [ 99.095271] __x64_sys_ioctl+0x6f/0xb0 [ 99.099140] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 99.103712] do_syscall_64+0xf9/0x620 [ 99.107502] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.112678] RIP: 0033:0x7f06838f9079 [ 99.116379] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 99.135267] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 99.142958] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 99.150210] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 99.157465] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 99.164717] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 99.171965] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 99.227230] FAULT_INJECTION: forcing a failure. [ 99.227230] name failslab, interval 1, probability 0, space 0, times 0 [ 99.238795] CPU: 1 PID: 8572 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 99.246674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 99.256443] Call Trace: [ 99.259019] dump_stack+0x1fc/0x2ef [ 99.262627] should_fail.cold+0xa/0xf [ 99.266409] ? setup_fault_attr+0x200/0x200 [ 99.270715] ? lock_acquire+0x170/0x3c0 [ 99.274674] __should_failslab+0x115/0x180 [ 99.278895] should_failslab+0x5/0x10 [ 99.282681] kmem_cache_alloc+0x277/0x370 [ 99.286826] __d_alloc+0x2b/0xa10 [ 99.290261] ? lock_downgrade+0x720/0x720 [ 99.294388] ? lock_acquire+0x170/0x3c0 [ 99.298345] d_alloc+0x4a/0x230 [ 99.301609] d_alloc_parallel+0xeb/0x19e0 [ 99.305743] ? mark_held_locks+0xf0/0xf0 [ 99.309785] ? __lock_acquire+0x6de/0x3ff0 [ 99.314005] ? __d_lookup_rcu+0x6b0/0x6b0 [ 99.318133] ? mark_held_locks+0xf0/0xf0 [ 99.322174] ? mark_held_locks+0xf0/0xf0 [ 99.326216] ? __lockdep_init_map+0x100/0x5a0 [ 99.330692] ? __lockdep_init_map+0x100/0x5a0 [ 99.335177] __lookup_slow+0x18d/0x4a0 [ 99.339055] ? check_preemption_disabled+0x41/0x280 [ 99.344051] ? follow_dotdot_rcu+0x1040/0x1040 [ 99.348613] ? __d_lookup+0x411/0x710 [ 99.352395] ? d_lookup+0x18e/0x250 [ 99.356007] lookup_one_len+0x163/0x190 [ 99.359961] ? try_lookup_one_len+0x180/0x180 [ 99.364440] start_creating+0xc9/0x220 [ 99.368307] __debugfs_create_file+0x5e/0x480 [ 99.372785] bdi_register_va.part.0+0x24b/0x750 [ 99.377436] bdi_register+0x12a/0x140 [ 99.381218] ? bdi_register_va+0x80/0x80 [ 99.385266] ? vsnprintf+0x2cc/0x14f0 [ 99.389052] bdi_register_owner+0x59/0x100 [ 99.393267] __device_add_disk+0xd58/0x10c0 [ 99.397571] ? sprintf+0xc0/0x100 [ 99.401006] ? blk_alloc_devt+0x2d0/0x2d0 [ 99.405142] ? __raw_spin_lock_init+0x28/0x100 [ 99.409725] ? __lockdep_init_map+0x100/0x5a0 [ 99.414210] loop_add+0x628/0x8a0 [ 99.417651] loop_control_ioctl+0x16c/0x480 [ 99.421982] ? loop_lookup+0x1d0/0x1d0 [ 99.425857] ? __vfs_write+0xff/0x770 [ 99.429640] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 99.434551] ? common_file_perm+0x4e5/0x850 [ 99.438857] ? loop_lookup+0x1d0/0x1d0 [ 99.442728] do_vfs_ioctl+0xcdb/0x12e0 [ 99.446623] ? vfs_write+0x3d7/0x540 [ 99.450328] ? ioctl_preallocate+0x200/0x200 [ 99.454725] ? lock_downgrade+0x720/0x720 [ 99.458878] ? check_preemption_disabled+0x41/0x280 [ 99.463878] ? vfs_write+0x393/0x540 [ 99.467577] ? ksys_write+0x1c8/0x2a0 [ 99.471360] ksys_ioctl+0x9b/0xc0 [ 99.474796] __x64_sys_ioctl+0x6f/0xb0 [ 99.478667] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 99.483230] do_syscall_64+0xf9/0x620 [ 99.487016] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.492186] RIP: 0033:0x7f06838f9079 [ 99.495883] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 99.514760] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 99.522450] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 99.529707] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 99.536959] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 99.544206] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 99.551456] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 99.607717] FAULT_INJECTION: forcing a failure. [ 99.607717] name failslab, interval 1, probability 0, space 0, times 0 [ 99.619765] CPU: 1 PID: 8581 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 99.627648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 99.636989] Call Trace: [ 99.639564] dump_stack+0x1fc/0x2ef [ 99.643170] should_fail.cold+0xa/0xf [ 99.646955] ? setup_fault_attr+0x200/0x200 [ 99.651256] ? lock_acquire+0x170/0x3c0 [ 99.655214] __should_failslab+0x115/0x180 [ 99.659432] should_failslab+0x5/0x10 [ 99.663217] kmem_cache_alloc+0x277/0x370 [ 99.667347] __d_alloc+0x2b/0xa10 [ 99.670784] ? lock_downgrade+0x720/0x720 [ 99.674921] ? lock_acquire+0x170/0x3c0 [ 99.678877] d_alloc+0x4a/0x230 [ 99.682138] d_alloc_parallel+0xeb/0x19e0 [ 99.686270] ? mark_held_locks+0xf0/0xf0 [ 99.690312] ? __lock_acquire+0x6de/0x3ff0 [ 99.694529] ? __d_lookup_rcu+0x6b0/0x6b0 [ 99.698655] ? mark_held_locks+0xf0/0xf0 [ 99.702697] ? mark_held_locks+0xf0/0xf0 [ 99.706739] ? __lockdep_init_map+0x100/0x5a0 [ 99.711222] ? __lockdep_init_map+0x100/0x5a0 [ 99.715700] __lookup_slow+0x18d/0x4a0 [ 99.719568] ? check_preemption_disabled+0x41/0x280 [ 99.724570] ? follow_dotdot_rcu+0x1040/0x1040 [ 99.729137] ? __d_lookup+0x411/0x710 [ 99.732926] ? d_lookup+0x18e/0x250 [ 99.736536] lookup_one_len+0x163/0x190 [ 99.740490] ? try_lookup_one_len+0x180/0x180 [ 99.744971] start_creating+0xc9/0x220 [ 99.748841] __debugfs_create_file+0x5e/0x480 [ 99.753320] bdi_register_va.part.0+0x24b/0x750 [ 99.757970] bdi_register+0x12a/0x140 [ 99.761753] ? bdi_register_va+0x80/0x80 [ 99.765810] ? vsnprintf+0x2cc/0x14f0 [ 99.769594] bdi_register_owner+0x59/0x100 [ 99.773809] __device_add_disk+0xd58/0x10c0 [ 99.778113] ? sprintf+0xc0/0x100 [ 99.781546] ? blk_alloc_devt+0x2d0/0x2d0 [ 99.785674] ? __raw_spin_lock_init+0x28/0x100 [ 99.790237] ? __lockdep_init_map+0x100/0x5a0 [ 99.794713] loop_add+0x628/0x8a0 [ 99.798147] loop_control_ioctl+0x16c/0x480 [ 99.802454] ? loop_lookup+0x1d0/0x1d0 [ 99.806323] ? __vfs_write+0xff/0x770 [ 99.810102] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 99.815011] ? common_file_perm+0x4e5/0x850 [ 99.819320] ? loop_lookup+0x1d0/0x1d0 [ 99.823189] do_vfs_ioctl+0xcdb/0x12e0 [ 99.827059] ? vfs_write+0x3d7/0x540 [ 99.830752] ? ioctl_preallocate+0x200/0x200 [ 99.835143] ? lock_downgrade+0x720/0x720 [ 99.839277] ? check_preemption_disabled+0x41/0x280 [ 99.844275] ? vfs_write+0x393/0x540 [ 99.847971] ? ksys_write+0x1c8/0x2a0 [ 99.851751] ksys_ioctl+0x9b/0xc0 [ 99.855191] __x64_sys_ioctl+0x6f/0xb0 [ 99.859060] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 99.863622] do_syscall_64+0xf9/0x620 [ 99.867402] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.872574] RIP: 0033:0x7f06838f9079 [ 99.876268] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 99.895148] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 99.902835] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 99.910088] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 99.917337] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 99.924586] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 99.931836] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 99.977700] FAULT_INJECTION: forcing a failure. [ 99.977700] name failslab, interval 1, probability 0, space 0, times 0 [ 99.990068] CPU: 0 PID: 8590 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 99.997947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 100.007285] Call Trace: [ 100.009862] dump_stack+0x1fc/0x2ef [ 100.013472] should_fail.cold+0xa/0xf [ 100.017256] ? setup_fault_attr+0x200/0x200 [ 100.021560] ? lock_acquire+0x170/0x3c0 [ 100.025517] __should_failslab+0x115/0x180 [ 100.029736] should_failslab+0x5/0x10 [ 100.033555] kmem_cache_alloc+0x277/0x370 [ 100.037703] alloc_inode+0xab/0x180 [ 100.041321] new_inode+0x1d/0xf0 [ 100.044676] debugfs_get_inode+0x1a/0x130 [ 100.048816] debugfs_create_dir+0x73/0x440 [ 100.053055] bdi_register_va.part.0+0x1f7/0x750 [ 100.057719] bdi_register+0x12a/0x140 [ 100.061505] ? bdi_register_va+0x80/0x80 [ 100.065555] ? vsnprintf+0x2cc/0x14f0 [ 100.069343] bdi_register_owner+0x59/0x100 [ 100.073572] __device_add_disk+0xd58/0x10c0 [ 100.077891] ? sprintf+0xc0/0x100 [ 100.081333] ? blk_alloc_devt+0x2d0/0x2d0 [ 100.085474] ? __raw_spin_lock_init+0x28/0x100 [ 100.090040] ? __lockdep_init_map+0x100/0x5a0 [ 100.094538] loop_add+0x628/0x8a0 [ 100.097976] loop_control_ioctl+0x16c/0x480 [ 100.102279] ? loop_lookup+0x1d0/0x1d0 [ 100.106150] ? __vfs_write+0xff/0x770 [ 100.110024] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 100.114936] ? common_file_perm+0x4e5/0x850 [ 100.119239] ? loop_lookup+0x1d0/0x1d0 [ 100.123106] do_vfs_ioctl+0xcdb/0x12e0 [ 100.126975] ? vfs_write+0x3d7/0x540 [ 100.130673] ? ioctl_preallocate+0x200/0x200 [ 100.135064] ? lock_downgrade+0x720/0x720 [ 100.139199] ? check_preemption_disabled+0x41/0x280 [ 100.144198] ? vfs_write+0x393/0x540 [ 100.147892] ? ksys_write+0x1c8/0x2a0 [ 100.151674] ksys_ioctl+0x9b/0xc0 [ 100.155122] __x64_sys_ioctl+0x6f/0xb0 [ 100.158996] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 100.163560] do_syscall_64+0xf9/0x620 [ 100.167349] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.172519] RIP: 0033:0x7f06838f9079 [ 100.176212] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 100.195098] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 100.202805] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 100.210057] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 100.217306] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 100.224556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 100.231805] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 100.278804] FAULT_INJECTION: forcing a failure. [ 100.278804] name failslab, interval 1, probability 0, space 0, times 0 [ 100.290326] CPU: 0 PID: 8598 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 100.298210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 100.307546] Call Trace: [ 100.310119] dump_stack+0x1fc/0x2ef [ 100.313735] should_fail.cold+0xa/0xf [ 100.317520] ? setup_fault_attr+0x200/0x200 [ 100.321842] ? lock_acquire+0x170/0x3c0 [ 100.325800] __should_failslab+0x115/0x180 [ 100.330020] should_failslab+0x5/0x10 [ 100.333800] kmem_cache_alloc+0x277/0x370 [ 100.337933] alloc_inode+0xab/0x180 [ 100.341537] new_inode+0x1d/0xf0 [ 100.344884] debugfs_get_inode+0x1a/0x130 [ 100.349015] debugfs_create_dir+0x73/0x440 [ 100.353233] bdi_register_va.part.0+0x1f7/0x750 [ 100.357882] bdi_register+0x12a/0x140 [ 100.361664] ? bdi_register_va+0x80/0x80 [ 100.365710] ? vsnprintf+0x2cc/0x14f0 [ 100.369492] bdi_register_owner+0x59/0x100 [ 100.373709] __device_add_disk+0xd58/0x10c0 [ 100.378011] ? sprintf+0xc0/0x100 [ 100.381444] ? blk_alloc_devt+0x2d0/0x2d0 [ 100.385573] ? __raw_spin_lock_init+0x28/0x100 [ 100.390138] ? __lockdep_init_map+0x100/0x5a0 [ 100.394643] loop_add+0x628/0x8a0 [ 100.398084] loop_control_ioctl+0x16c/0x480 [ 100.402391] ? loop_lookup+0x1d0/0x1d0 [ 100.406260] ? __vfs_write+0xff/0x770 [ 100.410042] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 100.414954] ? common_file_perm+0x4e5/0x850 [ 100.419261] ? loop_lookup+0x1d0/0x1d0 [ 100.423131] do_vfs_ioctl+0xcdb/0x12e0 [ 100.426999] ? vfs_write+0x3d7/0x540 [ 100.430694] ? ioctl_preallocate+0x200/0x200 [ 100.435092] ? lock_downgrade+0x720/0x720 [ 100.439229] ? check_preemption_disabled+0x41/0x280 [ 100.444225] ? vfs_write+0x393/0x540 [ 100.447921] ? ksys_write+0x1c8/0x2a0 [ 100.451702] ksys_ioctl+0x9b/0xc0 [ 100.455135] __x64_sys_ioctl+0x6f/0xb0 [ 100.459003] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 100.463568] do_syscall_64+0xf9/0x620 [ 100.467352] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.472521] RIP: 0033:0x7f06838f9079 [ 100.476213] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 100.495097] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 100.502784] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 100.510036] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 100.517282] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 100.524549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 100.531809] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 100.587876] FAULT_INJECTION: forcing a failure. [ 100.587876] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 100.599955] CPU: 0 PID: 8607 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 100.607828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 100.617171] Call Trace: [ 100.619776] dump_stack+0x1fc/0x2ef [ 100.623389] should_fail.cold+0xa/0xf [ 100.627177] ? setup_fault_attr+0x200/0x200 [ 100.631481] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 100.636566] ? __wake_up_common_lock+0xe0/0x170 [ 100.641227] __alloc_pages_nodemask+0x239/0x2890 [ 100.645969] ? d_add+0x393/0x650 [ 100.649323] ? __lock_acquire+0x6de/0x3ff0 [ 100.653541] ? _raw_spin_unlock+0x29/0x40 [ 100.657670] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 100.662496] ? __lookup_slow+0x298/0x4a0 [ 100.666550] ? follow_dotdot_rcu+0x1040/0x1040 [ 100.671126] ? __d_lookup+0x411/0x710 [ 100.675007] cache_grow_begin+0xa4/0x8a0 [ 100.679055] ? setup_fault_attr+0x200/0x200 [ 100.683375] ? lock_acquire+0x170/0x3c0 [ 100.687337] cache_alloc_refill+0x273/0x340 [ 100.691646] kmem_cache_alloc+0x346/0x370 [ 100.695789] alloc_inode+0xab/0x180 [ 100.699401] new_inode+0x1d/0xf0 [ 100.702752] debugfs_get_inode+0x1a/0x130 [ 100.706891] debugfs_create_dir+0x73/0x440 [ 100.711114] bdi_register_va.part.0+0x1f7/0x750 [ 100.715777] bdi_register+0x12a/0x140 [ 100.719559] ? bdi_register_va+0x80/0x80 [ 100.723605] ? vsnprintf+0x2cc/0x14f0 [ 100.727390] bdi_register_owner+0x59/0x100 [ 100.731605] __device_add_disk+0xd58/0x10c0 [ 100.735913] ? sprintf+0xc0/0x100 [ 100.739348] ? blk_alloc_devt+0x2d0/0x2d0 [ 100.743485] ? __raw_spin_lock_init+0x28/0x100 [ 100.748052] ? __lockdep_init_map+0x100/0x5a0 [ 100.752531] loop_add+0x628/0x8a0 [ 100.755971] loop_control_ioctl+0x16c/0x480 [ 100.760277] ? loop_lookup+0x1d0/0x1d0 [ 100.764147] ? __vfs_write+0xff/0x770 [ 100.767929] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 100.772841] ? common_file_perm+0x4e5/0x850 [ 100.777145] ? loop_lookup+0x1d0/0x1d0 [ 100.781014] do_vfs_ioctl+0xcdb/0x12e0 [ 100.784884] ? vfs_write+0x3d7/0x540 [ 100.788578] ? ioctl_preallocate+0x200/0x200 [ 100.792966] ? lock_downgrade+0x720/0x720 [ 100.797099] ? check_preemption_disabled+0x41/0x280 [ 100.802097] ? vfs_write+0x393/0x540 [ 100.805798] ? ksys_write+0x1c8/0x2a0 [ 100.809589] ksys_ioctl+0x9b/0xc0 [ 100.813034] __x64_sys_ioctl+0x6f/0xb0 [ 100.816910] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 100.821479] do_syscall_64+0xf9/0x620 [ 100.825266] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.830440] RIP: 0033:0x7f06838f9079 [ 100.834134] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 100.853018] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 100.860714] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 100.867965] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 100.875215] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 100.882468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 100.889727] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 100.957517] FAULT_INJECTION: forcing a failure. [ 100.957517] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 100.969338] CPU: 0 PID: 8617 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 100.977309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 100.986646] Call Trace: [ 100.989225] dump_stack+0x1fc/0x2ef [ 100.992849] should_fail.cold+0xa/0xf [ 100.996729] ? setup_fault_attr+0x200/0x200 [ 101.001038] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 101.006132] ? __wake_up_common_lock+0xe0/0x170 [ 101.010789] __alloc_pages_nodemask+0x239/0x2890 [ 101.015534] ? d_add+0x393/0x650 [ 101.018891] ? __lock_acquire+0x6de/0x3ff0 [ 101.023111] ? _raw_spin_unlock+0x29/0x40 [ 101.027250] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 101.032098] ? __lookup_slow+0x298/0x4a0 [ 101.036145] ? follow_dotdot_rcu+0x1040/0x1040 [ 101.040804] ? __d_lookup+0x411/0x710 [ 101.044588] cache_grow_begin+0xa4/0x8a0 [ 101.048636] ? setup_fault_attr+0x200/0x200 [ 101.053176] ? lock_acquire+0x170/0x3c0 [ 101.057143] cache_alloc_refill+0x273/0x340 [ 101.061454] kmem_cache_alloc+0x346/0x370 [ 101.065592] alloc_inode+0xab/0x180 [ 101.069203] new_inode+0x1d/0xf0 [ 101.072555] debugfs_get_inode+0x1a/0x130 [ 101.076697] debugfs_create_dir+0x73/0x440 [ 101.080924] bdi_register_va.part.0+0x1f7/0x750 [ 101.085574] bdi_register+0x12a/0x140 [ 101.089356] ? bdi_register_va+0x80/0x80 [ 101.093400] ? vsnprintf+0x2cc/0x14f0 [ 101.097300] bdi_register_owner+0x59/0x100 [ 101.101528] __device_add_disk+0xd58/0x10c0 [ 101.105842] ? sprintf+0xc0/0x100 [ 101.109286] ? blk_alloc_devt+0x2d0/0x2d0 [ 101.113417] ? __raw_spin_lock_init+0x28/0x100 [ 101.117981] ? __lockdep_init_map+0x100/0x5a0 [ 101.122465] loop_add+0x628/0x8a0 [ 101.125903] loop_control_ioctl+0x16c/0x480 [ 101.130208] ? loop_lookup+0x1d0/0x1d0 [ 101.134077] ? __vfs_write+0xff/0x770 [ 101.137858] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 101.142774] ? common_file_perm+0x4e5/0x850 [ 101.147078] ? loop_lookup+0x1d0/0x1d0 [ 101.150945] do_vfs_ioctl+0xcdb/0x12e0 [ 101.154812] ? vfs_write+0x3d7/0x540 [ 101.158505] ? ioctl_preallocate+0x200/0x200 [ 101.162895] ? lock_downgrade+0x720/0x720 [ 101.167030] ? check_preemption_disabled+0x41/0x280 [ 101.172030] ? vfs_write+0x393/0x540 [ 101.175730] ? ksys_write+0x1c8/0x2a0 [ 101.179513] ksys_ioctl+0x9b/0xc0 [ 101.182948] __x64_sys_ioctl+0x6f/0xb0 [ 101.186816] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 101.191381] do_syscall_64+0xf9/0x620 [ 101.195165] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.200336] RIP: 0033:0x7f06838f9079 [ 101.204029] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 101.222910] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 101.230599] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 101.237852] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 101.245102] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 101.252350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 101.259597] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 101.318271] FAULT_INJECTION: forcing a failure. [ 101.318271] name failslab, interval 1, probability 0, space 0, times 0 [ 101.329827] CPU: 1 PID: 8627 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 101.337691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 101.347026] Call Trace: [ 101.349598] dump_stack+0x1fc/0x2ef [ 101.353208] should_fail.cold+0xa/0xf [ 101.356997] ? setup_fault_attr+0x200/0x200 [ 101.361300] ? lock_acquire+0x170/0x3c0 [ 101.365260] __should_failslab+0x115/0x180 [ 101.369476] should_failslab+0x5/0x10 [ 101.373259] kmem_cache_alloc+0x277/0x370 [ 101.377388] __d_alloc+0x2b/0xa10 [ 101.380831] ? lock_downgrade+0x720/0x720 [ 101.384964] ? lock_acquire+0x170/0x3c0 [ 101.388925] d_alloc+0x4a/0x230 [ 101.392186] d_alloc_parallel+0xeb/0x19e0 [ 101.396321] ? mark_held_locks+0xf0/0xf0 [ 101.400364] ? __lock_acquire+0x6de/0x3ff0 [ 101.404579] ? __d_lookup_rcu+0x6b0/0x6b0 [ 101.408706] ? mark_held_locks+0xf0/0xf0 [ 101.412746] ? mark_held_locks+0xf0/0xf0 [ 101.416791] ? __lockdep_init_map+0x100/0x5a0 [ 101.421358] ? __lockdep_init_map+0x100/0x5a0 [ 101.425839] __lookup_slow+0x18d/0x4a0 [ 101.429710] ? check_preemption_disabled+0x41/0x280 [ 101.434710] ? follow_dotdot_rcu+0x1040/0x1040 [ 101.439274] ? __d_lookup+0x411/0x710 [ 101.443062] ? d_lookup+0x18e/0x250 [ 101.446674] lookup_one_len+0x163/0x190 [ 101.450634] ? try_lookup_one_len+0x180/0x180 [ 101.455115] start_creating+0xc9/0x220 [ 101.458983] __debugfs_create_file+0x5e/0x480 [ 101.463462] bdi_register_va.part.0+0x24b/0x750 [ 101.468114] bdi_register+0x12a/0x140 [ 101.471897] ? bdi_register_va+0x80/0x80 [ 101.475940] ? vsnprintf+0x2cc/0x14f0 [ 101.479723] bdi_register_owner+0x59/0x100 [ 101.483937] __device_add_disk+0xd58/0x10c0 [ 101.488242] ? sprintf+0xc0/0x100 [ 101.491677] ? blk_alloc_devt+0x2d0/0x2d0 [ 101.495807] ? __raw_spin_lock_init+0x28/0x100 [ 101.500369] ? __lockdep_init_map+0x100/0x5a0 [ 101.504845] loop_add+0x628/0x8a0 [ 101.508279] loop_control_ioctl+0x16c/0x480 [ 101.512581] ? loop_lookup+0x1d0/0x1d0 [ 101.516456] ? __vfs_write+0xff/0x770 [ 101.520247] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 101.525156] ? common_file_perm+0x4e5/0x850 [ 101.529463] ? loop_lookup+0x1d0/0x1d0 [ 101.533336] do_vfs_ioctl+0xcdb/0x12e0 [ 101.537207] ? vfs_write+0x3d7/0x540 [ 101.540912] ? ioctl_preallocate+0x200/0x200 [ 101.545309] ? lock_downgrade+0x720/0x720 [ 101.549440] ? check_preemption_disabled+0x41/0x280 [ 101.554438] ? vfs_write+0x393/0x540 [ 101.558135] ? ksys_write+0x1c8/0x2a0 [ 101.561924] ksys_ioctl+0x9b/0xc0 [ 101.565359] __x64_sys_ioctl+0x6f/0xb0 [ 101.569248] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 101.573810] do_syscall_64+0xf9/0x620 [ 101.577595] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.582764] RIP: 0033:0x7f06838f9079 [ 101.586466] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 101.605344] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 101.613030] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 101.620291] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 101.627543] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 101.634790] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 101.642044] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 101.696928] FAULT_INJECTION: forcing a failure. [ 101.696928] name failslab, interval 1, probability 0, space 0, times 0 [ 101.708470] CPU: 1 PID: 8636 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 101.716335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 101.725668] Call Trace: [ 101.728241] dump_stack+0x1fc/0x2ef [ 101.731857] should_fail.cold+0xa/0xf [ 101.735642] ? setup_fault_attr+0x200/0x200 [ 101.739946] ? lock_acquire+0x170/0x3c0 [ 101.743902] __should_failslab+0x115/0x180 [ 101.748118] should_failslab+0x5/0x10 [ 101.751897] kmem_cache_alloc+0x277/0x370 [ 101.756027] __d_alloc+0x2b/0xa10 [ 101.759463] ? lock_downgrade+0x720/0x720 [ 101.763590] ? lock_acquire+0x170/0x3c0 [ 101.767545] d_alloc+0x4a/0x230 [ 101.770807] d_alloc_parallel+0xeb/0x19e0 [ 101.774954] ? mark_held_locks+0xf0/0xf0 [ 101.779000] ? __lock_acquire+0x6de/0x3ff0 [ 101.783216] ? __d_lookup_rcu+0x6b0/0x6b0 [ 101.787344] ? mark_held_locks+0xf0/0xf0 [ 101.791394] ? mark_held_locks+0xf0/0xf0 [ 101.795437] ? __lockdep_init_map+0x100/0x5a0 [ 101.799913] ? __lockdep_init_map+0x100/0x5a0 [ 101.804394] __lookup_slow+0x18d/0x4a0 [ 101.808279] ? check_preemption_disabled+0x41/0x280 [ 101.813278] ? follow_dotdot_rcu+0x1040/0x1040 [ 101.817845] ? __d_lookup+0x411/0x710 [ 101.821630] ? d_lookup+0x18e/0x250 [ 101.825241] lookup_one_len+0x163/0x190 [ 101.829195] ? try_lookup_one_len+0x180/0x180 [ 101.833673] start_creating+0xc9/0x220 [ 101.837541] __debugfs_create_file+0x5e/0x480 [ 101.842019] bdi_register_va.part.0+0x24b/0x750 [ 101.846670] bdi_register+0x12a/0x140 [ 101.850451] ? bdi_register_va+0x80/0x80 [ 101.854493] ? vsnprintf+0x2cc/0x14f0 [ 101.858279] bdi_register_owner+0x59/0x100 [ 101.862493] __device_add_disk+0xd58/0x10c0 [ 101.866800] ? sprintf+0xc0/0x100 [ 101.870236] ? blk_alloc_devt+0x2d0/0x2d0 [ 101.874375] ? __raw_spin_lock_init+0x28/0x100 [ 101.878946] ? __lockdep_init_map+0x100/0x5a0 [ 101.883424] loop_add+0x628/0x8a0 [ 101.886862] loop_control_ioctl+0x16c/0x480 [ 101.891163] ? loop_lookup+0x1d0/0x1d0 [ 101.895033] ? __vfs_write+0xff/0x770 [ 101.898818] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 101.903728] ? common_file_perm+0x4e5/0x850 [ 101.908029] ? loop_lookup+0x1d0/0x1d0 [ 101.911905] do_vfs_ioctl+0xcdb/0x12e0 [ 101.915776] ? vfs_write+0x3d7/0x540 [ 101.919483] ? ioctl_preallocate+0x200/0x200 [ 101.923895] ? lock_downgrade+0x720/0x720 [ 101.928039] ? check_preemption_disabled+0x41/0x280 [ 101.933038] ? vfs_write+0x393/0x540 [ 101.936738] ? ksys_write+0x1c8/0x2a0 [ 101.940523] ksys_ioctl+0x9b/0xc0 [ 101.943960] __x64_sys_ioctl+0x6f/0xb0 [ 101.947833] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 101.952396] do_syscall_64+0xf9/0x620 [ 101.956181] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.961354] RIP: 0033:0x7f06838f9079 [ 101.965048] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 101.983929] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 101.991617] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 101.998868] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 102.006116] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 102.013363] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 102.020615] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 102.066899] FAULT_INJECTION: forcing a failure. [ 102.066899] name failslab, interval 1, probability 0, space 0, times 0 [ 102.079363] CPU: 1 PID: 8644 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 102.087283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 102.096620] Call Trace: [ 102.099207] dump_stack+0x1fc/0x2ef [ 102.102827] should_fail.cold+0xa/0xf [ 102.106613] ? setup_fault_attr+0x200/0x200 [ 102.110918] ? lock_acquire+0x170/0x3c0 [ 102.114876] __should_failslab+0x115/0x180 [ 102.119096] should_failslab+0x5/0x10 [ 102.122906] kmem_cache_alloc+0x277/0x370 [ 102.127042] alloc_inode+0xab/0x180 [ 102.130647] new_inode+0x1d/0xf0 [ 102.133995] debugfs_get_inode+0x1a/0x130 [ 102.138123] debugfs_create_dir+0x73/0x440 [ 102.142336] bdi_register_va.part.0+0x1f7/0x750 [ 102.146989] bdi_register+0x12a/0x140 [ 102.150770] ? bdi_register_va+0x80/0x80 [ 102.154816] ? vsnprintf+0x2cc/0x14f0 [ 102.158602] bdi_register_owner+0x59/0x100 [ 102.162820] __device_add_disk+0xd58/0x10c0 [ 102.167126] ? sprintf+0xc0/0x100 [ 102.170557] ? blk_alloc_devt+0x2d0/0x2d0 [ 102.174687] ? __raw_spin_lock_init+0x28/0x100 [ 102.179251] ? __lockdep_init_map+0x100/0x5a0 [ 102.183752] loop_add+0x628/0x8a0 [ 102.187186] loop_control_ioctl+0x16c/0x480 [ 102.191491] ? loop_lookup+0x1d0/0x1d0 [ 102.195370] ? __vfs_write+0xff/0x770 [ 102.199159] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 102.204073] ? common_file_perm+0x4e5/0x850 [ 102.208384] ? loop_lookup+0x1d0/0x1d0 [ 102.212252] do_vfs_ioctl+0xcdb/0x12e0 [ 102.216125] ? vfs_write+0x3d7/0x540 [ 102.219830] ? ioctl_preallocate+0x200/0x200 [ 102.224220] ? lock_downgrade+0x720/0x720 [ 102.228350] ? check_preemption_disabled+0x41/0x280 [ 102.233368] ? vfs_write+0x393/0x540 [ 102.237064] ? ksys_write+0x1c8/0x2a0 [ 102.240845] ksys_ioctl+0x9b/0xc0 [ 102.244278] __x64_sys_ioctl+0x6f/0xb0 [ 102.248147] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 102.252710] do_syscall_64+0xf9/0x620 [ 102.256494] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.261665] RIP: 0033:0x7f06838f9079 [ 102.265366] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 102.284255] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 102.291943] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 102.299199] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 102.306458] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 102.313708] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 102.320958] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 102.377857] FAULT_INJECTION: forcing a failure. [ 102.377857] name failslab, interval 1, probability 0, space 0, times 0 [ 102.389331] CPU: 0 PID: 8652 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 102.397204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 102.406545] Call Trace: [ 102.409122] dump_stack+0x1fc/0x2ef [ 102.412749] should_fail.cold+0xa/0xf [ 102.416540] ? setup_fault_attr+0x200/0x200 [ 102.420846] ? lock_acquire+0x170/0x3c0 [ 102.424817] __should_failslab+0x115/0x180 [ 102.429041] should_failslab+0x5/0x10 [ 102.432826] kmem_cache_alloc+0x277/0x370 [ 102.436958] alloc_inode+0xab/0x180 [ 102.440565] new_inode+0x1d/0xf0 [ 102.443913] debugfs_get_inode+0x1a/0x130 [ 102.448042] __debugfs_create_file+0xb2/0x480 [ 102.452521] bdi_register_va.part.0+0x24b/0x750 [ 102.457173] bdi_register+0x12a/0x140 [ 102.460957] ? bdi_register_va+0x80/0x80 [ 102.465006] ? vsnprintf+0x2cc/0x14f0 [ 102.468797] bdi_register_owner+0x59/0x100 [ 102.473014] __device_add_disk+0xd58/0x10c0 [ 102.477320] ? sprintf+0xc0/0x100 [ 102.480754] ? blk_alloc_devt+0x2d0/0x2d0 [ 102.484893] ? __raw_spin_lock_init+0x28/0x100 [ 102.489466] ? __lockdep_init_map+0x100/0x5a0 [ 102.493949] loop_add+0x628/0x8a0 [ 102.497385] loop_control_ioctl+0x16c/0x480 [ 102.501686] ? loop_lookup+0x1d0/0x1d0 [ 102.505582] ? __vfs_write+0xff/0x770 [ 102.509366] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 102.514275] ? common_file_perm+0x4e5/0x850 [ 102.518580] ? loop_lookup+0x1d0/0x1d0 [ 102.522467] do_vfs_ioctl+0xcdb/0x12e0 [ 102.526333] ? vfs_write+0x3d7/0x540 [ 102.530027] ? ioctl_preallocate+0x200/0x200 [ 102.534417] ? lock_downgrade+0x720/0x720 [ 102.538558] ? check_preemption_disabled+0x41/0x280 [ 102.543558] ? vfs_write+0x393/0x540 [ 102.547259] ? ksys_write+0x1c8/0x2a0 [ 102.551075] ksys_ioctl+0x9b/0xc0 [ 102.554510] __x64_sys_ioctl+0x6f/0xb0 [ 102.558381] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 102.562952] do_syscall_64+0xf9/0x620 [ 102.566738] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.571907] RIP: 0033:0x7f06838f9079 [ 102.575603] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 102.594485] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 102.602172] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 102.609421] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 102.616669] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 102.623918] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 102.631165] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 102.687461] FAULT_INJECTION: forcing a failure. [ 102.687461] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 102.699272] CPU: 0 PID: 8662 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 102.707134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 102.716466] Call Trace: [ 102.719035] dump_stack+0x1fc/0x2ef [ 102.722647] should_fail.cold+0xa/0xf [ 102.726433] ? setup_fault_attr+0x200/0x200 [ 102.730740] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 102.735826] ? __wake_up_common_lock+0xe0/0x170 [ 102.740500] __alloc_pages_nodemask+0x239/0x2890 [ 102.745248] ? d_add+0x393/0x650 [ 102.748603] ? __lock_acquire+0x6de/0x3ff0 [ 102.752825] ? _raw_spin_unlock+0x29/0x40 [ 102.756958] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 102.761788] ? __lookup_slow+0x298/0x4a0 [ 102.765841] ? follow_dotdot_rcu+0x1040/0x1040 [ 102.770410] ? __d_lookup+0x411/0x710 [ 102.774196] cache_grow_begin+0xa4/0x8a0 [ 102.778240] ? setup_fault_attr+0x200/0x200 [ 102.782541] ? lock_acquire+0x170/0x3c0 [ 102.786497] cache_alloc_refill+0x273/0x340 [ 102.790803] kmem_cache_alloc+0x346/0x370 [ 102.794935] alloc_inode+0xab/0x180 [ 102.798543] new_inode+0x1d/0xf0 [ 102.801900] debugfs_get_inode+0x1a/0x130 [ 102.806028] debugfs_create_dir+0x73/0x440 [ 102.810246] bdi_register_va.part.0+0x1f7/0x750 [ 102.814902] bdi_register+0x12a/0x140 [ 102.818685] ? bdi_register_va+0x80/0x80 [ 102.822729] ? vsnprintf+0x2cc/0x14f0 [ 102.826512] bdi_register_owner+0x59/0x100 [ 102.830732] __device_add_disk+0xd58/0x10c0 [ 102.835037] ? sprintf+0xc0/0x100 [ 102.838468] ? blk_alloc_devt+0x2d0/0x2d0 [ 102.842597] ? __raw_spin_lock_init+0x28/0x100 [ 102.847162] ? __lockdep_init_map+0x100/0x5a0 [ 102.851644] loop_add+0x628/0x8a0 [ 102.855090] loop_control_ioctl+0x16c/0x480 [ 102.859400] ? loop_lookup+0x1d0/0x1d0 [ 102.863277] ? __vfs_write+0xff/0x770 [ 102.867062] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 102.871975] ? common_file_perm+0x4e5/0x850 [ 102.876284] ? loop_lookup+0x1d0/0x1d0 [ 102.880161] do_vfs_ioctl+0xcdb/0x12e0 [ 102.884033] ? vfs_write+0x3d7/0x540 [ 102.887730] ? ioctl_preallocate+0x200/0x200 [ 102.892122] ? lock_downgrade+0x720/0x720 [ 102.896251] ? check_preemption_disabled+0x41/0x280 [ 102.901277] ? vfs_write+0x393/0x540 [ 102.904974] ? ksys_write+0x1c8/0x2a0 [ 102.908756] ksys_ioctl+0x9b/0xc0 [ 102.912189] __x64_sys_ioctl+0x6f/0xb0 [ 102.916056] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 102.920621] do_syscall_64+0xf9/0x620 [ 102.924412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.929665] RIP: 0033:0x7f06838f9079 [ 102.933385] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 102.952267] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 102.959955] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 102.967204] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 102.974458] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 102.981708] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program executing program executing program [ 102.988956] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 103.057377] FAULT_INJECTION: forcing a failure. [ 103.057377] name failslab, interval 1, probability 0, space 0, times 0 [ 103.068689] CPU: 1 PID: 8673 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 103.076563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 103.085895] Call Trace: [ 103.088465] dump_stack+0x1fc/0x2ef [ 103.092074] should_fail.cold+0xa/0xf [ 103.095864] ? setup_fault_attr+0x200/0x200 [ 103.100178] ? lock_acquire+0x170/0x3c0 [ 103.104141] __should_failslab+0x115/0x180 [ 103.108358] should_failslab+0x5/0x10 [ 103.112140] kmem_cache_alloc_trace+0x284/0x380 [ 103.116785] ? wait_for_completion_io+0x10/0x10 [ 103.121433] ? kobj_ns_initial+0x90/0x90 [ 103.125473] call_usermodehelper_setup+0x84/0x300 [ 103.130298] kobject_uevent_env+0xe83/0x1480 [ 103.134690] device_add+0xb2f/0x16d0 [ 103.138392] ? device_check_offline+0x280/0x280 [ 103.143038] ? kfree_const+0x51/0x60 [ 103.146732] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 103.151725] ? kfree+0x1e2/0x210 [ 103.155074] device_create_groups_vargs+0x1f4/0x270 [ 103.160068] device_create+0xdf/0x120 [ 103.163852] ? device_create_vargs+0x50/0x50 [ 103.168240] ? pointer+0x850/0x850 [ 103.171762] bdi_register_va.part.0+0x4c/0x750 [ 103.176322] bdi_register+0x12a/0x140 [ 103.180105] ? bdi_register_va+0x80/0x80 [ 103.184148] ? vsnprintf+0x2cc/0x14f0 [ 103.187930] bdi_register_owner+0x59/0x100 [ 103.192144] __device_add_disk+0xd58/0x10c0 [ 103.196443] ? sprintf+0xc0/0x100 [ 103.199873] ? blk_alloc_devt+0x2d0/0x2d0 [ 103.204008] ? __raw_spin_lock_init+0x28/0x100 [ 103.208594] ? __lockdep_init_map+0x100/0x5a0 [ 103.213073] loop_add+0x628/0x8a0 [ 103.216513] loop_control_ioctl+0x16c/0x480 [ 103.220815] ? loop_lookup+0x1d0/0x1d0 [ 103.224683] ? __vfs_write+0xff/0x770 [ 103.228463] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 103.233374] ? common_file_perm+0x4e5/0x850 [ 103.237674] ? loop_lookup+0x1d0/0x1d0 [ 103.241542] do_vfs_ioctl+0xcdb/0x12e0 [ 103.245408] ? vfs_write+0x3d7/0x540 [ 103.249103] ? ioctl_preallocate+0x200/0x200 [ 103.253491] ? lock_downgrade+0x720/0x720 [ 103.257633] ? check_preemption_disabled+0x41/0x280 [ 103.262653] ? vfs_write+0x393/0x540 [ 103.266357] ? ksys_write+0x1c8/0x2a0 [ 103.270144] ksys_ioctl+0x9b/0xc0 [ 103.273575] __x64_sys_ioctl+0x6f/0xb0 [ 103.277456] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 103.282015] do_syscall_64+0xf9/0x620 [ 103.285800] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 103.290966] RIP: 0033:0x7f06838f9079 executing program [ 103.294659] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 103.313538] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 103.321223] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 103.328470] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 103.335717] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 103.342963] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 103.350209] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 103.417086] FAULT_INJECTION: forcing a failure. [ 103.417086] name failslab, interval 1, probability 0, space 0, times 0 [ 103.429101] CPU: 1 PID: 8681 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 103.436981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 103.446318] Call Trace: [ 103.448887] dump_stack+0x1fc/0x2ef [ 103.452507] should_fail.cold+0xa/0xf [ 103.456293] ? setup_fault_attr+0x200/0x200 [ 103.460594] ? lock_acquire+0x170/0x3c0 [ 103.464549] __should_failslab+0x115/0x180 [ 103.468762] should_failslab+0x5/0x10 [ 103.472540] kmem_cache_alloc+0x277/0x370 [ 103.476670] __d_alloc+0x2b/0xa10 [ 103.480105] d_alloc+0x4a/0x230 [ 103.483366] d_alloc_parallel+0xeb/0x19e0 [ 103.487496] ? mark_held_locks+0xf0/0xf0 [ 103.491543] ? __d_lookup_rcu+0x6b0/0x6b0 [ 103.495668] ? device_add+0xbf8/0x16d0 [ 103.499537] ? mark_held_locks+0xf0/0xf0 [ 103.503591] ? __lockdep_init_map+0x100/0x5a0 [ 103.508074] ? __lockdep_init_map+0x100/0x5a0 [ 103.512564] __lookup_slow+0x18d/0x4a0 [ 103.516442] ? check_preemption_disabled+0x41/0x280 [ 103.521441] ? follow_dotdot_rcu+0x1040/0x1040 [ 103.526007] ? __d_lookup+0x411/0x710 [ 103.529792] ? d_lookup+0x18e/0x250 [ 103.533403] lookup_one_len+0x163/0x190 [ 103.537358] ? try_lookup_one_len+0x180/0x180 [ 103.541836] start_creating+0xc9/0x220 [ 103.545701] debugfs_create_dir+0x1f/0x440 [ 103.549917] bdi_register_va.part.0+0x1f7/0x750 [ 103.554567] bdi_register+0x12a/0x140 [ 103.558358] ? bdi_register_va+0x80/0x80 [ 103.562405] ? vsnprintf+0x2cc/0x14f0 [ 103.566187] bdi_register_owner+0x59/0x100 [ 103.570408] __device_add_disk+0xd58/0x10c0 [ 103.574717] ? sprintf+0xc0/0x100 [ 103.578156] ? blk_alloc_devt+0x2d0/0x2d0 [ 103.582283] ? __raw_spin_lock_init+0x28/0x100 [ 103.586843] ? __lockdep_init_map+0x100/0x5a0 [ 103.591320] loop_add+0x628/0x8a0 [ 103.594756] loop_control_ioctl+0x16c/0x480 [ 103.599061] ? loop_lookup+0x1d0/0x1d0 [ 103.602926] ? __vfs_write+0xff/0x770 [ 103.606705] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 103.611630] ? common_file_perm+0x4e5/0x850 [ 103.615928] ? loop_lookup+0x1d0/0x1d0 [ 103.619794] do_vfs_ioctl+0xcdb/0x12e0 [ 103.623661] ? vfs_write+0x3d7/0x540 [ 103.627354] ? ioctl_preallocate+0x200/0x200 [ 103.631741] ? lock_downgrade+0x720/0x720 [ 103.635878] ? check_preemption_disabled+0x41/0x280 [ 103.640873] ? vfs_write+0x393/0x540 [ 103.644591] ? ksys_write+0x1c8/0x2a0 [ 103.648374] ksys_ioctl+0x9b/0xc0 [ 103.651804] __x64_sys_ioctl+0x6f/0xb0 [ 103.655675] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 103.660234] do_syscall_64+0xf9/0x620 [ 103.664014] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 103.669180] RIP: 0033:0x7f06838f9079 [ 103.672874] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 103.691752] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 103.699440] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 103.706689] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 103.713936] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 103.721181] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 103.728431] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 103.777333] FAULT_INJECTION: forcing a failure. [ 103.777333] name failslab, interval 1, probability 0, space 0, times 0 [ 103.788900] CPU: 0 PID: 8690 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 103.796763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 103.806094] Call Trace: [ 103.808754] dump_stack+0x1fc/0x2ef [ 103.812365] should_fail.cold+0xa/0xf [ 103.816148] ? setup_fault_attr+0x200/0x200 [ 103.820460] ? lock_acquire+0x170/0x3c0 [ 103.824424] __should_failslab+0x115/0x180 [ 103.828640] should_failslab+0x5/0x10 [ 103.832420] kmem_cache_alloc+0x277/0x370 [ 103.836549] skb_clone+0x151/0x3d0 [ 103.840073] netlink_broadcast_filtered+0x8e5/0xbc0 [ 103.845073] netlink_broadcast+0x35/0x40 [ 103.849115] kobject_uevent_env+0xa56/0x1480 [ 103.853513] device_add+0xb2f/0x16d0 [ 103.857213] ? device_check_offline+0x280/0x280 [ 103.861860] ? kfree_const+0x51/0x60 [ 103.865552] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 103.870564] ? kfree+0x1e2/0x210 [ 103.874000] device_create_groups_vargs+0x1f4/0x270 [ 103.878994] device_create+0xdf/0x120 [ 103.882776] ? device_create_vargs+0x50/0x50 [ 103.887180] ? pointer+0x850/0x850 [ 103.890709] bdi_register_va.part.0+0x4c/0x750 [ 103.895280] bdi_register+0x12a/0x140 [ 103.899072] ? bdi_register_va+0x80/0x80 [ 103.903121] ? vsnprintf+0x2cc/0x14f0 [ 103.906908] bdi_register_owner+0x59/0x100 [ 103.911130] __device_add_disk+0xd58/0x10c0 [ 103.915435] ? sprintf+0xc0/0x100 [ 103.918871] ? blk_alloc_devt+0x2d0/0x2d0 [ 103.922999] ? __raw_spin_lock_init+0x28/0x100 [ 103.927561] ? __lockdep_init_map+0x100/0x5a0 [ 103.932044] loop_add+0x628/0x8a0 [ 103.935485] loop_control_ioctl+0x16c/0x480 [ 103.939792] ? loop_lookup+0x1d0/0x1d0 [ 103.943669] ? __vfs_write+0xff/0x770 [ 103.947463] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 103.952391] ? common_file_perm+0x4e5/0x850 [ 103.956700] ? loop_lookup+0x1d0/0x1d0 [ 103.960571] do_vfs_ioctl+0xcdb/0x12e0 [ 103.964495] ? vfs_write+0x3d7/0x540 [ 103.968221] ? ioctl_preallocate+0x200/0x200 [ 103.972612] ? lock_downgrade+0x720/0x720 [ 103.976747] ? check_preemption_disabled+0x41/0x280 [ 103.981756] ? vfs_write+0x393/0x540 [ 103.985455] ? ksys_write+0x1c8/0x2a0 [ 103.989247] ksys_ioctl+0x9b/0xc0 [ 103.992684] __x64_sys_ioctl+0x6f/0xb0 [ 103.996646] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 104.001219] do_syscall_64+0xf9/0x620 [ 104.005033] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.010207] RIP: 0033:0x7f06838f9079 executing program executing program [ 104.013903] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 104.032790] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 104.040474] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 104.047721] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 104.054970] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 104.062220] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 104.069471] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 104.127640] FAULT_INJECTION: forcing a failure. [ 104.127640] name failslab, interval 1, probability 0, space 0, times 0 [ 104.139145] CPU: 1 PID: 8699 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 104.147007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 104.156451] Call Trace: [ 104.159032] dump_stack+0x1fc/0x2ef [ 104.162643] should_fail.cold+0xa/0xf [ 104.166425] ? setup_fault_attr+0x200/0x200 [ 104.170726] ? lock_acquire+0x170/0x3c0 [ 104.174681] __should_failslab+0x115/0x180 [ 104.178898] should_failslab+0x5/0x10 [ 104.182684] kmem_cache_alloc+0x277/0x370 [ 104.186814] __d_alloc+0x2b/0xa10 [ 104.190250] d_alloc+0x4a/0x230 [ 104.193513] d_alloc_parallel+0xeb/0x19e0 [ 104.197659] ? mark_held_locks+0xf0/0xf0 [ 104.201712] ? __d_lookup_rcu+0x6b0/0x6b0 [ 104.205845] ? device_add+0xbf8/0x16d0 [ 104.209715] ? mark_held_locks+0xf0/0xf0 [ 104.213756] ? __lockdep_init_map+0x100/0x5a0 [ 104.218232] ? __lockdep_init_map+0x100/0x5a0 [ 104.222706] __lookup_slow+0x18d/0x4a0 [ 104.226583] ? check_preemption_disabled+0x41/0x280 [ 104.231583] ? follow_dotdot_rcu+0x1040/0x1040 [ 104.236149] ? __d_lookup+0x411/0x710 [ 104.239933] ? d_lookup+0x18e/0x250 [ 104.243550] lookup_one_len+0x163/0x190 [ 104.247505] ? try_lookup_one_len+0x180/0x180 [ 104.251984] start_creating+0xc9/0x220 [ 104.255852] debugfs_create_dir+0x1f/0x440 [ 104.260066] bdi_register_va.part.0+0x1f7/0x750 [ 104.264717] bdi_register+0x12a/0x140 [ 104.268504] ? bdi_register_va+0x80/0x80 [ 104.272552] ? vsnprintf+0x2cc/0x14f0 [ 104.276335] bdi_register_owner+0x59/0x100 [ 104.280551] __device_add_disk+0xd58/0x10c0 [ 104.284855] ? sprintf+0xc0/0x100 [ 104.288287] ? blk_alloc_devt+0x2d0/0x2d0 [ 104.292428] ? __raw_spin_lock_init+0x28/0x100 [ 104.296990] ? __lockdep_init_map+0x100/0x5a0 [ 104.301469] loop_add+0x628/0x8a0 [ 104.304909] loop_control_ioctl+0x16c/0x480 [ 104.309207] ? loop_lookup+0x1d0/0x1d0 [ 104.313077] ? __vfs_write+0xff/0x770 [ 104.316854] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 104.321763] ? common_file_perm+0x4e5/0x850 [ 104.326069] ? loop_lookup+0x1d0/0x1d0 [ 104.329942] do_vfs_ioctl+0xcdb/0x12e0 [ 104.333807] ? vfs_write+0x3d7/0x540 [ 104.337498] ? ioctl_preallocate+0x200/0x200 [ 104.341887] ? lock_downgrade+0x720/0x720 [ 104.346014] ? check_preemption_disabled+0x41/0x280 [ 104.351010] ? vfs_write+0x393/0x540 [ 104.354715] ? ksys_write+0x1c8/0x2a0 [ 104.358656] ksys_ioctl+0x9b/0xc0 [ 104.362104] __x64_sys_ioctl+0x6f/0xb0 [ 104.365973] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 104.370536] do_syscall_64+0xf9/0x620 [ 104.374323] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.379497] RIP: 0033:0x7f06838f9079 [ 104.383199] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 104.402085] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 104.409771] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 104.417019] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 104.424272] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 104.431518] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 104.438764] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 104.496837] FAULT_INJECTION: forcing a failure. [ 104.496837] name failslab, interval 1, probability 0, space 0, times 0 [ 104.508590] CPU: 1 PID: 8708 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 104.516469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 104.525798] Call Trace: [ 104.528366] dump_stack+0x1fc/0x2ef [ 104.531979] should_fail.cold+0xa/0xf [ 104.535759] ? setup_fault_attr+0x200/0x200 [ 104.540059] ? lock_acquire+0x170/0x3c0 [ 104.544014] __should_failslab+0x115/0x180 [ 104.548238] should_failslab+0x5/0x10 [ 104.552026] kmem_cache_alloc+0x277/0x370 [ 104.556155] __d_alloc+0x2b/0xa10 [ 104.559589] d_alloc+0x4a/0x230 [ 104.562848] d_alloc_parallel+0xeb/0x19e0 [ 104.566986] ? mark_held_locks+0xf0/0xf0 [ 104.571027] ? __d_lookup_rcu+0x6b0/0x6b0 [ 104.575153] ? device_add+0xbf8/0x16d0 [ 104.579105] ? mark_held_locks+0xf0/0xf0 [ 104.583144] ? __lockdep_init_map+0x100/0x5a0 [ 104.587616] ? __lockdep_init_map+0x100/0x5a0 [ 104.592090] __lookup_slow+0x18d/0x4a0 [ 104.595961] ? check_preemption_disabled+0x41/0x280 [ 104.600953] ? follow_dotdot_rcu+0x1040/0x1040 [ 104.605523] ? __d_lookup+0x411/0x710 [ 104.609304] ? d_lookup+0x18e/0x250 [ 104.612917] lookup_one_len+0x163/0x190 [ 104.616871] ? try_lookup_one_len+0x180/0x180 [ 104.621344] start_creating+0xc9/0x220 [ 104.625209] debugfs_create_dir+0x1f/0x440 [ 104.629426] bdi_register_va.part.0+0x1f7/0x750 [ 104.634075] bdi_register+0x12a/0x140 [ 104.637859] ? bdi_register_va+0x80/0x80 [ 104.641914] ? vsnprintf+0x2cc/0x14f0 [ 104.645713] bdi_register_owner+0x59/0x100 [ 104.649938] __device_add_disk+0xd58/0x10c0 [ 104.654249] ? sprintf+0xc0/0x100 [ 104.657685] ? blk_alloc_devt+0x2d0/0x2d0 [ 104.661814] ? __raw_spin_lock_init+0x28/0x100 [ 104.666386] ? __lockdep_init_map+0x100/0x5a0 [ 104.670873] loop_add+0x628/0x8a0 [ 104.674307] loop_control_ioctl+0x16c/0x480 [ 104.678608] ? loop_lookup+0x1d0/0x1d0 [ 104.682477] ? __vfs_write+0xff/0x770 [ 104.686255] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 104.691166] ? common_file_perm+0x4e5/0x850 [ 104.695467] ? loop_lookup+0x1d0/0x1d0 [ 104.699334] do_vfs_ioctl+0xcdb/0x12e0 [ 104.703204] ? vfs_write+0x3d7/0x540 [ 104.706916] ? ioctl_preallocate+0x200/0x200 [ 104.711306] ? lock_downgrade+0x720/0x720 [ 104.715434] ? check_preemption_disabled+0x41/0x280 [ 104.720428] ? vfs_write+0x393/0x540 [ 104.724122] ? ksys_write+0x1c8/0x2a0 [ 104.727900] ksys_ioctl+0x9b/0xc0 [ 104.731333] __x64_sys_ioctl+0x6f/0xb0 [ 104.735209] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 104.739775] do_syscall_64+0xf9/0x620 [ 104.743557] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.748726] RIP: 0033:0x7f06838f9079 [ 104.752422] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 104.771302] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 104.778986] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 104.786238] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 104.793485] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 104.800740] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 104.808002] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 104.866959] FAULT_INJECTION: forcing a failure. [ 104.866959] name failslab, interval 1, probability 0, space 0, times 0 [ 104.878717] CPU: 0 PID: 8717 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 104.886587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 104.895924] Call Trace: [ 104.898500] dump_stack+0x1fc/0x2ef [ 104.902122] should_fail.cold+0xa/0xf [ 104.905912] ? setup_fault_attr+0x200/0x200 [ 104.910244] ? lock_acquire+0x170/0x3c0 [ 104.914210] __should_failslab+0x115/0x180 [ 104.918441] should_failslab+0x5/0x10 [ 104.922224] kmem_cache_alloc+0x277/0x370 [ 104.926353] __d_alloc+0x2b/0xa10 [ 104.929787] d_alloc+0x4a/0x230 [ 104.933046] d_alloc_parallel+0xeb/0x19e0 [ 104.937180] ? mark_held_locks+0xf0/0xf0 [ 104.941221] ? __d_lookup_rcu+0x6b0/0x6b0 [ 104.945354] ? device_add+0xbf8/0x16d0 [ 104.949220] ? mark_held_locks+0xf0/0xf0 [ 104.953262] ? __lockdep_init_map+0x100/0x5a0 [ 104.957738] ? __lockdep_init_map+0x100/0x5a0 [ 104.962392] __lookup_slow+0x18d/0x4a0 [ 104.966262] ? check_preemption_disabled+0x41/0x280 [ 104.971255] ? follow_dotdot_rcu+0x1040/0x1040 [ 104.975910] ? __d_lookup+0x411/0x710 [ 104.979693] ? d_lookup+0x18e/0x250 [ 104.983308] lookup_one_len+0x163/0x190 [ 104.987262] ? try_lookup_one_len+0x180/0x180 [ 104.991738] start_creating+0xc9/0x220 [ 104.995608] debugfs_create_dir+0x1f/0x440 [ 104.999831] bdi_register_va.part.0+0x1f7/0x750 [ 105.004481] bdi_register+0x12a/0x140 [ 105.008258] ? bdi_register_va+0x80/0x80 [ 105.012300] ? vsnprintf+0x2cc/0x14f0 [ 105.016080] bdi_register_owner+0x59/0x100 [ 105.020295] __device_add_disk+0xd58/0x10c0 [ 105.024610] ? sprintf+0xc0/0x100 [ 105.028048] ? blk_alloc_devt+0x2d0/0x2d0 [ 105.032179] ? __raw_spin_lock_init+0x28/0x100 [ 105.036739] ? __lockdep_init_map+0x100/0x5a0 [ 105.041214] loop_add+0x628/0x8a0 [ 105.044655] loop_control_ioctl+0x16c/0x480 [ 105.048962] ? loop_lookup+0x1d0/0x1d0 [ 105.052830] ? __vfs_write+0xff/0x770 [ 105.056613] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 105.061520] ? common_file_perm+0x4e5/0x850 [ 105.065822] ? loop_lookup+0x1d0/0x1d0 [ 105.069693] do_vfs_ioctl+0xcdb/0x12e0 [ 105.073582] ? vfs_write+0x3d7/0x540 [ 105.077275] ? ioctl_preallocate+0x200/0x200 [ 105.081663] ? lock_downgrade+0x720/0x720 [ 105.085812] ? check_preemption_disabled+0x41/0x280 [ 105.090811] ? vfs_write+0x393/0x540 [ 105.094508] ? ksys_write+0x1c8/0x2a0 [ 105.098293] ksys_ioctl+0x9b/0xc0 [ 105.101733] __x64_sys_ioctl+0x6f/0xb0 [ 105.105604] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 105.110174] do_syscall_64+0xf9/0x620 [ 105.113960] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.119127] RIP: 0033:0x7f06838f9079 [ 105.122820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 105.141709] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 105.149406] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 105.156653] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 105.163902] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 105.171156] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 105.178414] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 105.247771] FAULT_INJECTION: forcing a failure. [ 105.247771] name failslab, interval 1, probability 0, space 0, times 0 [ 105.259256] CPU: 0 PID: 8726 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 105.267118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 105.276456] Call Trace: [ 105.279026] dump_stack+0x1fc/0x2ef [ 105.282637] should_fail.cold+0xa/0xf [ 105.286420] ? setup_fault_attr+0x200/0x200 [ 105.290721] ? lock_acquire+0x170/0x3c0 [ 105.294686] __should_failslab+0x115/0x180 [ 105.298910] should_failslab+0x5/0x10 [ 105.302696] kmem_cache_alloc+0x277/0x370 [ 105.306826] __d_alloc+0x2b/0xa10 [ 105.310259] d_alloc+0x4a/0x230 [ 105.313523] d_alloc_parallel+0xeb/0x19e0 [ 105.317656] ? mark_held_locks+0xf0/0xf0 [ 105.321696] ? __d_lookup_rcu+0x6b0/0x6b0 [ 105.325820] ? device_add+0xbf8/0x16d0 [ 105.329688] ? mark_held_locks+0xf0/0xf0 [ 105.333727] ? __lockdep_init_map+0x100/0x5a0 [ 105.338201] ? __lockdep_init_map+0x100/0x5a0 [ 105.342688] __lookup_slow+0x18d/0x4a0 [ 105.346558] ? check_preemption_disabled+0x41/0x280 [ 105.351550] ? follow_dotdot_rcu+0x1040/0x1040 [ 105.356115] ? __d_lookup+0x411/0x710 [ 105.359899] ? d_lookup+0x18e/0x250 [ 105.363510] lookup_one_len+0x163/0x190 [ 105.367462] ? try_lookup_one_len+0x180/0x180 [ 105.371939] start_creating+0xc9/0x220 [ 105.375807] debugfs_create_dir+0x1f/0x440 [ 105.380024] bdi_register_va.part.0+0x1f7/0x750 [ 105.384681] bdi_register+0x12a/0x140 [ 105.388465] ? bdi_register_va+0x80/0x80 [ 105.392510] ? vsnprintf+0x2cc/0x14f0 [ 105.396296] bdi_register_owner+0x59/0x100 [ 105.400510] __device_add_disk+0xd58/0x10c0 [ 105.404812] ? sprintf+0xc0/0x100 [ 105.408245] ? blk_alloc_devt+0x2d0/0x2d0 [ 105.412384] ? __raw_spin_lock_init+0x28/0x100 [ 105.416945] ? __lockdep_init_map+0x100/0x5a0 [ 105.421425] loop_add+0x628/0x8a0 [ 105.424869] loop_control_ioctl+0x16c/0x480 [ 105.429168] ? loop_lookup+0x1d0/0x1d0 [ 105.433036] ? __vfs_write+0xff/0x770 [ 105.436818] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 105.441726] ? common_file_perm+0x4e5/0x850 [ 105.446029] ? loop_lookup+0x1d0/0x1d0 [ 105.449897] do_vfs_ioctl+0xcdb/0x12e0 [ 105.453763] ? vfs_write+0x3d7/0x540 [ 105.457461] ? ioctl_preallocate+0x200/0x200 [ 105.461866] ? lock_downgrade+0x720/0x720 [ 105.466010] ? check_preemption_disabled+0x41/0x280 [ 105.471007] ? vfs_write+0x393/0x540 [ 105.474701] ? ksys_write+0x1c8/0x2a0 [ 105.478484] ksys_ioctl+0x9b/0xc0 [ 105.481918] __x64_sys_ioctl+0x6f/0xb0 [ 105.485784] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 105.490349] do_syscall_64+0xf9/0x620 [ 105.494132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.499301] RIP: 0033:0x7f06838f9079 [ 105.502994] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 105.521873] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 105.529560] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 105.536809] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 105.544055] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 105.551300] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 105.558551] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 105.618295] FAULT_INJECTION: forcing a failure. [ 105.618295] name failslab, interval 1, probability 0, space 0, times 0 [ 105.629963] CPU: 0 PID: 8734 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 105.637827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 105.647158] Call Trace: [ 105.649732] dump_stack+0x1fc/0x2ef [ 105.653361] should_fail.cold+0xa/0xf [ 105.657230] ? setup_fault_attr+0x200/0x200 [ 105.661532] ? lock_acquire+0x170/0x3c0 [ 105.665489] __should_failslab+0x115/0x180 [ 105.669704] should_failslab+0x5/0x10 [ 105.673484] kmem_cache_alloc_trace+0x284/0x380 [ 105.678133] ? wait_for_completion_io+0x10/0x10 [ 105.682781] ? kobj_ns_initial+0x90/0x90 [ 105.686821] call_usermodehelper_setup+0x84/0x300 [ 105.691647] kobject_uevent_env+0xe83/0x1480 [ 105.696038] device_add+0xb2f/0x16d0 [ 105.699733] ? device_check_offline+0x280/0x280 [ 105.704381] ? kfree_const+0x51/0x60 [ 105.708075] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 105.713069] ? kfree+0x1e2/0x210 [ 105.716429] device_create_groups_vargs+0x1f4/0x270 [ 105.721434] device_create+0xdf/0x120 [ 105.725221] ? device_create_vargs+0x50/0x50 [ 105.729628] ? pointer+0x850/0x850 [ 105.733166] bdi_register_va.part.0+0x4c/0x750 [ 105.737736] bdi_register+0x12a/0x140 [ 105.741525] ? bdi_register_va+0x80/0x80 [ 105.745570] ? vsnprintf+0x2cc/0x14f0 [ 105.749353] bdi_register_owner+0x59/0x100 [ 105.753569] __device_add_disk+0xd58/0x10c0 [ 105.757875] ? sprintf+0xc0/0x100 [ 105.761308] ? blk_alloc_devt+0x2d0/0x2d0 [ 105.765440] ? __raw_spin_lock_init+0x28/0x100 [ 105.770001] ? __lockdep_init_map+0x100/0x5a0 [ 105.774477] loop_add+0x628/0x8a0 [ 105.777910] loop_control_ioctl+0x16c/0x480 [ 105.782209] ? loop_lookup+0x1d0/0x1d0 [ 105.786076] ? __vfs_write+0xff/0x770 [ 105.789853] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 105.794762] ? common_file_perm+0x4e5/0x850 [ 105.799062] ? loop_lookup+0x1d0/0x1d0 [ 105.802927] do_vfs_ioctl+0xcdb/0x12e0 [ 105.806797] ? vfs_write+0x3d7/0x540 [ 105.810488] ? ioctl_preallocate+0x200/0x200 [ 105.814894] ? lock_downgrade+0x720/0x720 [ 105.819021] ? check_preemption_disabled+0x41/0x280 [ 105.824034] ? vfs_write+0x393/0x540 [ 105.827732] ? ksys_write+0x1c8/0x2a0 [ 105.831516] ksys_ioctl+0x9b/0xc0 [ 105.834956] __x64_sys_ioctl+0x6f/0xb0 [ 105.838837] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 105.843414] do_syscall_64+0xf9/0x620 [ 105.847204] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.852382] RIP: 0033:0x7f06838f9079 executing program executing program [ 105.856078] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 105.874962] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 105.882662] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 105.889920] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 105.897169] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 105.904425] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 105.911674] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 105.966906] FAULT_INJECTION: forcing a failure. [ 105.966906] name failslab, interval 1, probability 0, space 0, times 0 [ 105.979005] CPU: 1 PID: 8742 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 105.986880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 105.996302] Call Trace: [ 105.998877] dump_stack+0x1fc/0x2ef [ 106.002484] should_fail.cold+0xa/0xf [ 106.006272] ? setup_fault_attr+0x200/0x200 [ 106.010574] ? lock_acquire+0x170/0x3c0 [ 106.014549] __should_failslab+0x115/0x180 [ 106.018772] should_failslab+0x5/0x10 [ 106.022555] kmem_cache_alloc+0x277/0x370 [ 106.026685] __d_alloc+0x2b/0xa10 [ 106.030138] d_alloc+0x4a/0x230 [ 106.033400] d_alloc_parallel+0xeb/0x19e0 [ 106.037542] ? mark_held_locks+0xf0/0xf0 [ 106.041585] ? __d_lookup_rcu+0x6b0/0x6b0 [ 106.045835] ? device_add+0xbf8/0x16d0 [ 106.049792] ? mark_held_locks+0xf0/0xf0 [ 106.053836] ? __lockdep_init_map+0x100/0x5a0 [ 106.058314] ? __lockdep_init_map+0x100/0x5a0 [ 106.062809] __lookup_slow+0x18d/0x4a0 [ 106.066684] ? check_preemption_disabled+0x41/0x280 [ 106.071682] ? follow_dotdot_rcu+0x1040/0x1040 [ 106.076247] ? __d_lookup+0x411/0x710 [ 106.080043] ? d_lookup+0x18e/0x250 [ 106.083673] lookup_one_len+0x163/0x190 [ 106.087652] ? try_lookup_one_len+0x180/0x180 [ 106.092133] start_creating+0xc9/0x220 [ 106.096005] debugfs_create_dir+0x1f/0x440 [ 106.100230] bdi_register_va.part.0+0x1f7/0x750 [ 106.104884] bdi_register+0x12a/0x140 [ 106.108681] ? bdi_register_va+0x80/0x80 [ 106.113680] ? vsnprintf+0x2cc/0x14f0 [ 106.117463] bdi_register_owner+0x59/0x100 [ 106.121681] __device_add_disk+0xd58/0x10c0 [ 106.125983] ? sprintf+0xc0/0x100 [ 106.129413] ? blk_alloc_devt+0x2d0/0x2d0 [ 106.133540] ? __raw_spin_lock_init+0x28/0x100 [ 106.138099] ? __lockdep_init_map+0x100/0x5a0 [ 106.142573] loop_add+0x628/0x8a0 [ 106.146008] loop_control_ioctl+0x16c/0x480 [ 106.150308] ? loop_lookup+0x1d0/0x1d0 [ 106.154175] ? __vfs_write+0xff/0x770 [ 106.157955] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 106.162863] ? common_file_perm+0x4e5/0x850 [ 106.167161] ? loop_lookup+0x1d0/0x1d0 [ 106.171027] do_vfs_ioctl+0xcdb/0x12e0 [ 106.174891] ? vfs_write+0x3d7/0x540 [ 106.178585] ? ioctl_preallocate+0x200/0x200 [ 106.182976] ? lock_downgrade+0x720/0x720 [ 106.187104] ? check_preemption_disabled+0x41/0x280 [ 106.192110] ? vfs_write+0x393/0x540 [ 106.195808] ? ksys_write+0x1c8/0x2a0 [ 106.199587] ksys_ioctl+0x9b/0xc0 [ 106.203029] __x64_sys_ioctl+0x6f/0xb0 [ 106.206906] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 106.211467] do_syscall_64+0xf9/0x620 [ 106.215248] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 106.220415] RIP: 0033:0x7f06838f9079 [ 106.224105] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 106.242985] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 106.250673] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 106.257922] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 106.265169] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 106.272415] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 106.279660] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 106.326877] FAULT_INJECTION: forcing a failure. [ 106.326877] name failslab, interval 1, probability 0, space 0, times 0 [ 106.341659] CPU: 1 PID: 8751 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 106.349546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 106.358878] Call Trace: [ 106.361448] dump_stack+0x1fc/0x2ef [ 106.365058] should_fail.cold+0xa/0xf [ 106.368836] ? setup_fault_attr+0x200/0x200 [ 106.373137] ? lock_acquire+0x170/0x3c0 [ 106.377090] __should_failslab+0x115/0x180 [ 106.381306] should_failslab+0x5/0x10 [ 106.385086] kmem_cache_alloc_trace+0x284/0x380 [ 106.389753] ? wait_for_completion_io+0x10/0x10 [ 106.394401] ? kobj_ns_initial+0x90/0x90 [ 106.398442] call_usermodehelper_setup+0x84/0x300 [ 106.403264] kobject_uevent_env+0xe83/0x1480 [ 106.407655] device_add+0xb2f/0x16d0 [ 106.411350] ? device_check_offline+0x280/0x280 [ 106.415998] ? kfree_const+0x51/0x60 [ 106.419690] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 106.424682] ? kfree+0x1e2/0x210 [ 106.428032] device_create_groups_vargs+0x1f4/0x270 [ 106.433027] device_create+0xdf/0x120 [ 106.436808] ? device_create_vargs+0x50/0x50 [ 106.441197] ? pointer+0x850/0x850 [ 106.444724] bdi_register_va.part.0+0x4c/0x750 [ 106.449284] bdi_register+0x12a/0x140 [ 106.453061] ? bdi_register_va+0x80/0x80 [ 106.457103] ? vsnprintf+0x2cc/0x14f0 [ 106.460882] bdi_register_owner+0x59/0x100 [ 106.465097] __device_add_disk+0xd58/0x10c0 [ 106.469396] ? sprintf+0xc0/0x100 [ 106.472828] ? blk_alloc_devt+0x2d0/0x2d0 [ 106.476957] ? __raw_spin_lock_init+0x28/0x100 [ 106.481529] ? __lockdep_init_map+0x100/0x5a0 [ 106.486009] loop_add+0x628/0x8a0 [ 106.489440] loop_control_ioctl+0x16c/0x480 [ 106.493740] ? loop_lookup+0x1d0/0x1d0 [ 106.497614] ? __vfs_write+0xff/0x770 [ 106.501393] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 106.506300] ? common_file_perm+0x4e5/0x850 [ 106.510598] ? loop_lookup+0x1d0/0x1d0 [ 106.514463] do_vfs_ioctl+0xcdb/0x12e0 [ 106.518349] ? vfs_write+0x3d7/0x540 [ 106.522561] ? ioctl_preallocate+0x200/0x200 [ 106.526952] ? lock_downgrade+0x720/0x720 [ 106.531079] ? check_preemption_disabled+0x41/0x280 [ 106.536072] ? vfs_write+0x393/0x540 [ 106.539764] ? ksys_write+0x1c8/0x2a0 [ 106.543542] ksys_ioctl+0x9b/0xc0 [ 106.546972] __x64_sys_ioctl+0x6f/0xb0 [ 106.550839] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 106.555402] do_syscall_64+0xf9/0x620 [ 106.559238] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 106.564406] RIP: 0033:0x7f06838f9079 [ 106.568101] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 106.586977] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 106.594661] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 106.601914] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 106.609158] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 106.616402] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program executing program [ 106.623645] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 106.696588] FAULT_INJECTION: forcing a failure. [ 106.696588] name failslab, interval 1, probability 0, space 0, times 0 [ 106.708638] CPU: 0 PID: 8760 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 106.716519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 106.725851] Call Trace: [ 106.728430] dump_stack+0x1fc/0x2ef [ 106.732049] should_fail.cold+0xa/0xf [ 106.735836] ? setup_fault_attr+0x200/0x200 [ 106.740143] ? lock_acquire+0x170/0x3c0 [ 106.744100] __should_failslab+0x115/0x180 [ 106.748322] should_failslab+0x5/0x10 [ 106.752104] kmem_cache_alloc+0x277/0x370 [ 106.756234] alloc_inode+0xab/0x180 [ 106.759837] new_inode+0x1d/0xf0 [ 106.763181] debugfs_get_inode+0x1a/0x130 [ 106.767310] debugfs_create_dir+0x73/0x440 [ 106.771525] bdi_register_va.part.0+0x1f7/0x750 [ 106.776173] bdi_register+0x12a/0x140 [ 106.779950] ? bdi_register_va+0x80/0x80 [ 106.783993] ? vsnprintf+0x2cc/0x14f0 [ 106.787776] bdi_register_owner+0x59/0x100 [ 106.791997] __device_add_disk+0xd58/0x10c0 [ 106.796301] ? sprintf+0xc0/0x100 [ 106.799733] ? blk_alloc_devt+0x2d0/0x2d0 [ 106.803861] ? __raw_spin_lock_init+0x28/0x100 [ 106.808430] ? __lockdep_init_map+0x100/0x5a0 [ 106.812904] loop_add+0x628/0x8a0 [ 106.816340] loop_control_ioctl+0x16c/0x480 [ 106.820640] ? loop_lookup+0x1d0/0x1d0 [ 106.824514] ? __vfs_write+0xff/0x770 [ 106.828303] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 106.833209] ? common_file_perm+0x4e5/0x850 [ 106.837511] ? loop_lookup+0x1d0/0x1d0 [ 106.841383] do_vfs_ioctl+0xcdb/0x12e0 [ 106.845248] ? vfs_write+0x3d7/0x540 [ 106.848941] ? ioctl_preallocate+0x200/0x200 [ 106.853333] ? lock_downgrade+0x720/0x720 [ 106.857462] ? check_preemption_disabled+0x41/0x280 [ 106.862458] ? vfs_write+0x393/0x540 [ 106.866152] ? ksys_write+0x1c8/0x2a0 [ 106.869932] ksys_ioctl+0x9b/0xc0 [ 106.873364] __x64_sys_ioctl+0x6f/0xb0 [ 106.877240] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 106.881806] do_syscall_64+0xf9/0x620 [ 106.885588] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 106.890753] RIP: 0033:0x7f06838f9079 [ 106.894445] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 106.913326] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 106.921013] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 106.928262] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 106.935528] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 106.942774] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 106.950020] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 106.996759] FAULT_INJECTION: forcing a failure. [ 106.996759] name failslab, interval 1, probability 0, space 0, times 0 [ 107.008861] CPU: 0 PID: 8768 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 107.016732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 107.026063] Call Trace: [ 107.028636] dump_stack+0x1fc/0x2ef [ 107.032251] should_fail.cold+0xa/0xf [ 107.036033] ? setup_fault_attr+0x200/0x200 [ 107.040334] ? lock_acquire+0x170/0x3c0 [ 107.044288] __should_failslab+0x115/0x180 [ 107.048504] should_failslab+0x5/0x10 [ 107.052281] kmem_cache_alloc+0x277/0x370 [ 107.056408] alloc_inode+0xab/0x180 [ 107.060018] new_inode+0x1d/0xf0 [ 107.063365] debugfs_get_inode+0x1a/0x130 [ 107.067502] debugfs_create_dir+0x73/0x440 [ 107.071731] bdi_register_va.part.0+0x1f7/0x750 [ 107.076385] bdi_register+0x12a/0x140 [ 107.080169] ? bdi_register_va+0x80/0x80 [ 107.084228] ? vsnprintf+0x2cc/0x14f0 [ 107.088014] bdi_register_owner+0x59/0x100 [ 107.092244] __device_add_disk+0xd58/0x10c0 [ 107.096549] ? sprintf+0xc0/0x100 [ 107.099984] ? blk_alloc_devt+0x2d0/0x2d0 [ 107.104116] ? __raw_spin_lock_init+0x28/0x100 [ 107.108678] ? __lockdep_init_map+0x100/0x5a0 [ 107.113275] loop_add+0x628/0x8a0 [ 107.116720] loop_control_ioctl+0x16c/0x480 [ 107.121031] ? loop_lookup+0x1d0/0x1d0 [ 107.124910] ? __vfs_write+0xff/0x770 [ 107.128694] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 107.133620] ? common_file_perm+0x4e5/0x850 [ 107.137931] ? loop_lookup+0x1d0/0x1d0 [ 107.141801] do_vfs_ioctl+0xcdb/0x12e0 [ 107.145685] ? vfs_write+0x3d7/0x540 [ 107.149386] ? ioctl_preallocate+0x200/0x200 [ 107.153778] ? lock_downgrade+0x720/0x720 [ 107.157906] ? check_preemption_disabled+0x41/0x280 [ 107.162903] ? vfs_write+0x393/0x540 [ 107.166684] ? ksys_write+0x1c8/0x2a0 [ 107.170465] ksys_ioctl+0x9b/0xc0 [ 107.173898] __x64_sys_ioctl+0x6f/0xb0 [ 107.177763] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 107.182325] do_syscall_64+0xf9/0x620 [ 107.186106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.191280] RIP: 0033:0x7f06838f9079 [ 107.194971] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 107.213851] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 107.221535] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 107.228787] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 107.236044] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 107.243290] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 107.250534] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 107.306436] FAULT_INJECTION: forcing a failure. [ 107.306436] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 107.318266] CPU: 0 PID: 8775 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 107.326126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 107.335456] Call Trace: [ 107.338025] dump_stack+0x1fc/0x2ef [ 107.341632] should_fail.cold+0xa/0xf [ 107.345417] ? setup_fault_attr+0x200/0x200 [ 107.349725] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 107.354807] ? __wake_up_common_lock+0xe0/0x170 [ 107.359457] __alloc_pages_nodemask+0x239/0x2890 [ 107.364189] ? d_add+0x393/0x650 [ 107.367541] ? __lock_acquire+0x6de/0x3ff0 [ 107.371754] ? _raw_spin_unlock+0x29/0x40 [ 107.375880] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 107.380704] ? __lookup_slow+0x298/0x4a0 [ 107.384746] ? follow_dotdot_rcu+0x1040/0x1040 [ 107.389309] ? __d_lookup+0x411/0x710 [ 107.393092] cache_grow_begin+0xa4/0x8a0 [ 107.397134] ? setup_fault_attr+0x200/0x200 [ 107.401435] ? lock_acquire+0x170/0x3c0 [ 107.405390] cache_alloc_refill+0x273/0x340 [ 107.409693] kmem_cache_alloc+0x346/0x370 [ 107.413823] alloc_inode+0xab/0x180 [ 107.417429] new_inode+0x1d/0xf0 [ 107.420776] debugfs_get_inode+0x1a/0x130 [ 107.424901] debugfs_create_dir+0x73/0x440 [ 107.429117] bdi_register_va.part.0+0x1f7/0x750 [ 107.433765] bdi_register+0x12a/0x140 [ 107.437544] ? bdi_register_va+0x80/0x80 [ 107.441585] ? vsnprintf+0x2cc/0x14f0 [ 107.445368] bdi_register_owner+0x59/0x100 [ 107.449581] __device_add_disk+0xd58/0x10c0 [ 107.453882] ? sprintf+0xc0/0x100 [ 107.457314] ? blk_alloc_devt+0x2d0/0x2d0 [ 107.461449] ? __raw_spin_lock_init+0x28/0x100 [ 107.466010] ? __lockdep_init_map+0x100/0x5a0 [ 107.470488] loop_add+0x628/0x8a0 [ 107.473920] loop_control_ioctl+0x16c/0x480 [ 107.478222] ? loop_lookup+0x1d0/0x1d0 [ 107.482091] ? __vfs_write+0xff/0x770 [ 107.485872] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 107.490779] ? common_file_perm+0x4e5/0x850 [ 107.495078] ? loop_lookup+0x1d0/0x1d0 [ 107.498941] do_vfs_ioctl+0xcdb/0x12e0 [ 107.502808] ? vfs_write+0x3d7/0x540 [ 107.506499] ? ioctl_preallocate+0x200/0x200 [ 107.510884] ? lock_downgrade+0x720/0x720 [ 107.515024] ? check_preemption_disabled+0x41/0x280 [ 107.520022] ? vfs_write+0x393/0x540 [ 107.523716] ? ksys_write+0x1c8/0x2a0 [ 107.527505] ksys_ioctl+0x9b/0xc0 [ 107.530938] __x64_sys_ioctl+0x6f/0xb0 [ 107.534807] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 107.539365] do_syscall_64+0xf9/0x620 [ 107.543149] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.548314] RIP: 0033:0x7f06838f9079 [ 107.552005] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 107.570885] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 107.578569] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 107.585815] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 107.593063] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 107.600316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 107.607564] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 107.656662] FAULT_INJECTION: forcing a failure. [ 107.656662] name failslab, interval 1, probability 0, space 0, times 0 [ 107.668366] CPU: 1 PID: 8783 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 107.676238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 107.685572] Call Trace: [ 107.688141] dump_stack+0x1fc/0x2ef [ 107.691747] should_fail.cold+0xa/0xf [ 107.695528] ? setup_fault_attr+0x200/0x200 [ 107.699828] ? lock_acquire+0x170/0x3c0 [ 107.703781] __should_failslab+0x115/0x180 [ 107.707997] should_failslab+0x5/0x10 [ 107.711776] kmem_cache_alloc+0x277/0x370 [ 107.715905] alloc_inode+0xab/0x180 [ 107.719510] new_inode+0x1d/0xf0 [ 107.722855] debugfs_get_inode+0x1a/0x130 [ 107.726981] __debugfs_create_file+0xb2/0x480 [ 107.731460] bdi_register_va.part.0+0x24b/0x750 [ 107.736111] bdi_register+0x12a/0x140 [ 107.739888] ? bdi_register_va+0x80/0x80 [ 107.743930] ? vsnprintf+0x2cc/0x14f0 [ 107.747717] bdi_register_owner+0x59/0x100 [ 107.751929] __device_add_disk+0xd58/0x10c0 [ 107.756229] ? sprintf+0xc0/0x100 [ 107.759660] ? blk_alloc_devt+0x2d0/0x2d0 [ 107.763790] ? __raw_spin_lock_init+0x28/0x100 [ 107.768351] ? __lockdep_init_map+0x100/0x5a0 [ 107.772827] loop_add+0x628/0x8a0 [ 107.776261] loop_control_ioctl+0x16c/0x480 [ 107.780559] ? loop_lookup+0x1d0/0x1d0 [ 107.784432] ? __vfs_write+0xff/0x770 [ 107.788224] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 107.793141] ? common_file_perm+0x4e5/0x850 [ 107.797446] ? loop_lookup+0x1d0/0x1d0 [ 107.801311] do_vfs_ioctl+0xcdb/0x12e0 [ 107.805182] ? vfs_write+0x3d7/0x540 [ 107.808873] ? ioctl_preallocate+0x200/0x200 [ 107.813260] ? lock_downgrade+0x720/0x720 [ 107.817393] ? check_preemption_disabled+0x41/0x280 [ 107.822393] ? vfs_write+0x393/0x540 [ 107.826084] ? ksys_write+0x1c8/0x2a0 [ 107.829861] ksys_ioctl+0x9b/0xc0 [ 107.833293] __x64_sys_ioctl+0x6f/0xb0 [ 107.837162] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 107.841721] do_syscall_64+0xf9/0x620 [ 107.845502] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.850673] RIP: 0033:0x7f06838f9079 [ 107.854367] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 107.873244] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 107.880928] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 107.888183] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 107.895430] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 107.902676] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 107.909923] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 107.966666] FAULT_INJECTION: forcing a failure. [ 107.966666] name failslab, interval 1, probability 0, space 0, times 0 [ 107.978257] CPU: 0 PID: 8793 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 107.986135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 107.995467] Call Trace: [ 107.998039] dump_stack+0x1fc/0x2ef [ 108.001666] should_fail.cold+0xa/0xf [ 108.005456] ? setup_fault_attr+0x200/0x200 [ 108.009754] ? lock_acquire+0x170/0x3c0 [ 108.013711] __should_failslab+0x115/0x180 [ 108.017925] should_failslab+0x5/0x10 [ 108.021708] kmem_cache_alloc+0x277/0x370 [ 108.025839] __d_alloc+0x2b/0xa10 [ 108.029282] ? lock_downgrade+0x720/0x720 [ 108.033416] ? lock_acquire+0x170/0x3c0 [ 108.037380] d_alloc+0x4a/0x230 [ 108.040644] d_alloc_parallel+0xeb/0x19e0 [ 108.044777] ? mark_held_locks+0xf0/0xf0 [ 108.048819] ? __lock_acquire+0x6de/0x3ff0 [ 108.053035] ? __d_lookup_rcu+0x6b0/0x6b0 [ 108.057168] ? mark_held_locks+0xf0/0xf0 [ 108.061211] ? mark_held_locks+0xf0/0xf0 [ 108.065258] ? __lockdep_init_map+0x100/0x5a0 [ 108.069748] ? __lockdep_init_map+0x100/0x5a0 [ 108.074224] __lookup_slow+0x18d/0x4a0 [ 108.078095] ? check_preemption_disabled+0x41/0x280 [ 108.083176] ? follow_dotdot_rcu+0x1040/0x1040 [ 108.087765] ? __d_lookup+0x411/0x710 [ 108.091623] ? d_lookup+0x18e/0x250 [ 108.095289] lookup_one_len+0x163/0x190 [ 108.099245] ? try_lookup_one_len+0x180/0x180 [ 108.103734] start_creating+0xc9/0x220 [ 108.107607] __debugfs_create_file+0x5e/0x480 [ 108.112099] bdi_register_va.part.0+0x24b/0x750 [ 108.116757] bdi_register+0x12a/0x140 [ 108.120541] ? bdi_register_va+0x80/0x80 [ 108.124591] ? vsnprintf+0x2cc/0x14f0 [ 108.128383] bdi_register_owner+0x59/0x100 [ 108.132611] __device_add_disk+0xd58/0x10c0 [ 108.137612] ? sprintf+0xc0/0x100 [ 108.141047] ? blk_alloc_devt+0x2d0/0x2d0 [ 108.145177] ? __raw_spin_lock_init+0x28/0x100 [ 108.149746] ? __lockdep_init_map+0x100/0x5a0 [ 108.154226] loop_add+0x628/0x8a0 [ 108.157682] loop_control_ioctl+0x16c/0x480 [ 108.161995] ? loop_lookup+0x1d0/0x1d0 [ 108.165865] ? __vfs_write+0xff/0x770 [ 108.169649] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 108.174560] ? common_file_perm+0x4e5/0x850 [ 108.178861] ? loop_lookup+0x1d0/0x1d0 [ 108.182732] do_vfs_ioctl+0xcdb/0x12e0 [ 108.186599] ? vfs_write+0x3d7/0x540 [ 108.190290] ? ioctl_preallocate+0x200/0x200 [ 108.194681] ? lock_downgrade+0x720/0x720 [ 108.198810] ? check_preemption_disabled+0x41/0x280 [ 108.203806] ? vfs_write+0x393/0x540 [ 108.207501] ? ksys_write+0x1c8/0x2a0 [ 108.211280] ksys_ioctl+0x9b/0xc0 [ 108.214719] __x64_sys_ioctl+0x6f/0xb0 [ 108.218586] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 108.223148] do_syscall_64+0xf9/0x620 [ 108.226930] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.232105] RIP: 0033:0x7f06838f9079 [ 108.235805] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 108.254769] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program executing program [ 108.262456] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 108.269704] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 108.276951] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 108.284205] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 108.291457] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 108.348091] FAULT_INJECTION: forcing a failure. [ 108.348091] name failslab, interval 1, probability 0, space 0, times 0 [ 108.359485] CPU: 0 PID: 8804 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 108.367349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 108.376678] Call Trace: [ 108.379249] dump_stack+0x1fc/0x2ef [ 108.382856] should_fail.cold+0xa/0xf [ 108.386637] ? setup_fault_attr+0x200/0x200 [ 108.390938] ? lock_acquire+0x170/0x3c0 [ 108.394895] __should_failslab+0x115/0x180 [ 108.399113] should_failslab+0x5/0x10 [ 108.402895] kmem_cache_alloc+0x277/0x370 [ 108.407023] __d_alloc+0x2b/0xa10 [ 108.410456] ? lock_downgrade+0x720/0x720 [ 108.414582] ? lock_acquire+0x170/0x3c0 [ 108.418537] d_alloc+0x4a/0x230 [ 108.421796] d_alloc_parallel+0xeb/0x19e0 [ 108.425927] ? mark_held_locks+0xf0/0xf0 [ 108.429966] ? __lock_acquire+0x6de/0x3ff0 [ 108.434178] ? __d_lookup_rcu+0x6b0/0x6b0 [ 108.438304] ? mark_held_locks+0xf0/0xf0 [ 108.442344] ? mark_held_locks+0xf0/0xf0 [ 108.446384] ? __lockdep_init_map+0x100/0x5a0 [ 108.450855] ? __lockdep_init_map+0x100/0x5a0 [ 108.455335] __lookup_slow+0x18d/0x4a0 [ 108.459202] ? check_preemption_disabled+0x41/0x280 [ 108.464194] ? follow_dotdot_rcu+0x1040/0x1040 [ 108.468754] ? __d_lookup+0x411/0x710 [ 108.472535] ? d_lookup+0x18e/0x250 [ 108.476146] lookup_one_len+0x163/0x190 [ 108.480101] ? try_lookup_one_len+0x180/0x180 [ 108.484577] start_creating+0xc9/0x220 [ 108.488441] __debugfs_create_file+0x5e/0x480 [ 108.492915] bdi_register_va.part.0+0x24b/0x750 [ 108.497563] bdi_register+0x12a/0x140 [ 108.501339] ? bdi_register_va+0x80/0x80 [ 108.505379] ? vsnprintf+0x2cc/0x14f0 [ 108.509160] bdi_register_owner+0x59/0x100 [ 108.513375] __device_add_disk+0xd58/0x10c0 [ 108.517675] ? sprintf+0xc0/0x100 [ 108.521106] ? blk_alloc_devt+0x2d0/0x2d0 [ 108.525233] ? __raw_spin_lock_init+0x28/0x100 [ 108.529793] ? __lockdep_init_map+0x100/0x5a0 [ 108.534268] loop_add+0x628/0x8a0 [ 108.537704] loop_control_ioctl+0x16c/0x480 [ 108.542001] ? loop_lookup+0x1d0/0x1d0 [ 108.545868] ? __vfs_write+0xff/0x770 [ 108.549647] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 108.554555] ? common_file_perm+0x4e5/0x850 [ 108.558856] ? loop_lookup+0x1d0/0x1d0 [ 108.562721] do_vfs_ioctl+0xcdb/0x12e0 [ 108.566589] ? vfs_write+0x3d7/0x540 [ 108.570279] ? ioctl_preallocate+0x200/0x200 [ 108.574666] ? lock_downgrade+0x720/0x720 [ 108.578792] ? check_preemption_disabled+0x41/0x280 [ 108.583787] ? vfs_write+0x393/0x540 [ 108.587486] ? ksys_write+0x1c8/0x2a0 [ 108.591266] ksys_ioctl+0x9b/0xc0 [ 108.594699] __x64_sys_ioctl+0x6f/0xb0 [ 108.598563] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 108.603123] do_syscall_64+0xf9/0x620 [ 108.606903] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.612073] RIP: 0033:0x7f06838f9079 [ 108.615770] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 108.634648] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 108.642333] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 108.649581] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 108.656825] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 108.664079] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 108.671327] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 108.726913] FAULT_INJECTION: forcing a failure. [ 108.726913] name failslab, interval 1, probability 0, space 0, times 0 [ 108.738394] CPU: 1 PID: 8813 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 108.746263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 108.755604] Call Trace: [ 108.758174] dump_stack+0x1fc/0x2ef [ 108.761782] should_fail.cold+0xa/0xf [ 108.765562] ? setup_fault_attr+0x200/0x200 [ 108.769862] ? lock_acquire+0x170/0x3c0 [ 108.773816] __should_failslab+0x115/0x180 [ 108.778028] should_failslab+0x5/0x10 [ 108.781805] __kmalloc_track_caller+0x2a6/0x3c0 [ 108.786453] ? kstrdup_const+0x53/0x80 [ 108.790318] kstrdup+0x36/0x70 [ 108.793492] kstrdup_const+0x53/0x80 [ 108.797185] kvasprintf_const+0x108/0x190 [ 108.801316] kobject_set_name_vargs+0x56/0x150 [ 108.805878] dev_set_name+0xbd/0xf0 [ 108.809573] ? device_initialize+0x450/0x450 [ 108.813960] ? kobj_map+0x348/0x420 [ 108.817570] ? disk_release+0x310/0x310 [ 108.821529] __device_add_disk+0x58a/0x10c0 [ 108.825830] ? sprintf+0xc0/0x100 [ 108.829259] ? blk_alloc_devt+0x2d0/0x2d0 [ 108.833407] ? __raw_spin_lock_init+0x28/0x100 [ 108.837969] ? __lockdep_init_map+0x100/0x5a0 [ 108.842444] loop_add+0x628/0x8a0 [ 108.845876] loop_control_ioctl+0x16c/0x480 [ 108.850176] ? loop_lookup+0x1d0/0x1d0 [ 108.854048] ? __vfs_write+0xff/0x770 [ 108.857828] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 108.862754] ? common_file_perm+0x4e5/0x850 [ 108.867068] ? loop_lookup+0x1d0/0x1d0 [ 108.870946] do_vfs_ioctl+0xcdb/0x12e0 [ 108.874836] ? vfs_write+0x3d7/0x540 [ 108.878546] ? ioctl_preallocate+0x200/0x200 [ 108.882935] ? lock_downgrade+0x720/0x720 [ 108.887068] ? check_preemption_disabled+0x41/0x280 [ 108.892072] ? vfs_write+0x393/0x540 [ 108.895767] ? ksys_write+0x1c8/0x2a0 [ 108.899546] ksys_ioctl+0x9b/0xc0 [ 108.902980] __x64_sys_ioctl+0x6f/0xb0 [ 108.906846] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 108.911406] do_syscall_64+0xf9/0x620 [ 108.915196] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.920368] RIP: 0033:0x7f06838f9079 [ 108.924072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 108.942954] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 108.950640] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 108.957892] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 108.965140] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 108.972389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 108.979636] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 108.988579] ------------[ cut here ]------------ [ 108.993342] kernel BUG at fs/sysfs/group.c:115! [ 108.998667] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 109.004041] CPU: 0 PID: 8813 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 109.011905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 109.021245] RIP: 0010:internal_create_group+0x8ef/0xb20 [ 109.026585] Code: fc ff ff e8 33 46 9d ff 48 8b 7c 24 08 e8 99 1f ff ff e9 55 fe ff ff e8 1f 46 9d ff 48 85 db 0f 85 eb f7 ff ff e8 11 46 9d ff <0f> 0b 41 bd ea ff ff ff e9 35 fe ff ff e8 ff 45 9d ff 48 83 7c 24 [ 109.045463] RSP: 0018:ffff888095ecf9f8 EFLAGS: 00010293 [ 109.050805] RAX: ffff888095744140 RBX: 0000000000000000 RCX: ffffffff81c5372e [ 109.058057] RDX: 0000000000000000 RSI: ffffffff81c53f5f RDI: 0000000000000005 [ 109.065308] RBP: ffff8880b40c9350 R08: 0000000000000000 R09: 0000000000000000 [ 109.072556] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 109.079803] R13: ffff8880b40c9310 R14: ffff8880b40c9320 R15: 0000000000000000 [ 109.087052] FS: 0000555555a13300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 109.095253] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.101111] CR2: 00007fe1b172a740 CR3: 000000009a84f000 CR4: 00000000003406f0 [ 109.108359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.115606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.122848] Call Trace: [ 109.125418] ? sysfs_remove_link_from_group+0x70/0x70 [ 109.130585] ? mark_held_locks+0xa6/0xf0 [ 109.134622] ? _raw_spin_unlock_irq+0x24/0x80 [ 109.139096] blk_register_queue+0x12c/0x5b0 [ 109.143398] __device_add_disk+0xe1d/0x10c0 [ 109.147699] ? sprintf+0xc0/0x100 [ 109.151130] ? blk_alloc_devt+0x2d0/0x2d0 [ 109.155258] ? __raw_spin_lock_init+0x28/0x100 [ 109.159815] ? __lockdep_init_map+0x100/0x5a0 [ 109.164287] loop_add+0x628/0x8a0 [ 109.167719] loop_control_ioctl+0x16c/0x480 [ 109.172020] ? loop_lookup+0x1d0/0x1d0 [ 109.175885] ? __vfs_write+0xff/0x770 [ 109.179659] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 109.184563] ? common_file_perm+0x4e5/0x850 [ 109.188859] ? loop_lookup+0x1d0/0x1d0 [ 109.192721] do_vfs_ioctl+0xcdb/0x12e0 [ 109.196588] ? vfs_write+0x3d7/0x540 [ 109.200275] ? ioctl_preallocate+0x200/0x200 [ 109.204662] ? lock_downgrade+0x720/0x720 [ 109.208786] ? check_preemption_disabled+0x41/0x280 [ 109.213776] ? vfs_write+0x393/0x540 [ 109.217465] ? ksys_write+0x1c8/0x2a0 [ 109.221263] ksys_ioctl+0x9b/0xc0 [ 109.224700] __x64_sys_ioctl+0x6f/0xb0 [ 109.228563] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 109.233121] do_syscall_64+0xf9/0x620 [ 109.236900] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 109.242065] RIP: 0033:0x7f06838f9079 [ 109.245754] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 109.264629] RSP: 002b:00007ffe2fb606d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 109.272313] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06838f9079 [ 109.279559] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 109.286824] RBP: 00007ffe2fb606f0 R08: 0000000000000002 R09: 0000000000000001 [ 109.294070] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 109.301314] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 109.308561] Modules linked in: [ 109.311982] ---[ end trace e174ab29914034bb ]--- [ 109.316821] RIP: 0010:internal_create_group+0x8ef/0xb20 [ 109.322223] Code: fc ff ff e8 33 46 9d ff 48 8b 7c 24 08 e8 99 1f ff ff e9 55 fe ff ff e8 1f 46 9d ff 48 85 db 0f 85 eb f7 ff ff e8 11 46 9d ff <0f> 0b 41 bd ea ff ff ff e9 35 fe ff ff e8 ff 45 9d ff 48 83 7c 24 [ 109.341217] RSP: 0018:ffff888095ecf9f8 EFLAGS: 00010293 [ 109.346637] RAX: ffff888095744140 RBX: 0000000000000000 RCX: ffffffff81c5372e [ 109.353907] RDX: 0000000000000000 RSI: ffffffff81c53f5f RDI: 0000000000000005 [ 109.361231] RBP: ffff8880b40c9350 R08: 0000000000000000 R09: 0000000000000000 [ 109.368554] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 109.375876] R13: ffff8880b40c9310 R14: ffff8880b40c9320 R15: 0000000000000000 [ 109.383162] FS: 0000555555a13300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 109.391425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.397350] CR2: 00007fe1b172a740 CR3: 000000009a84f000 CR4: 00000000003406f0 [ 109.404653] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.411950] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.419260] Kernel panic - not syncing: Fatal exception [ 109.424765] Kernel Offset: disabled [ 109.428373] Rebooting in 86400 seconds..