Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. executing program [ 35.182058] FAULT_INJECTION: forcing a failure. [ 35.182058] name failslab, interval 1, probability 0, space 0, times 1 [ 35.193952] CPU: 0 PID: 8091 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 35.201827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.211169] Call Trace: [ 35.213752] dump_stack+0x1fc/0x2ef [ 35.217381] should_fail.cold+0xa/0xf [ 35.221178] ? setup_fault_attr+0x200/0x200 [ 35.225485] ? lock_acquire+0x170/0x3c0 [ 35.229459] __should_failslab+0x115/0x180 [ 35.233681] should_failslab+0x5/0x10 [ 35.237465] kmem_cache_alloc+0x277/0x370 [ 35.241598] alloc_inode+0xab/0x180 [ 35.245208] new_inode+0x1d/0xf0 [ 35.248903] debugfs_get_inode+0x1a/0x130 [ 35.253030] __debugfs_create_file+0xb2/0x480 [ 35.257511] bdi_register_va.part.0+0x24b/0x750 [ 35.262166] bdi_register+0x12a/0x140 [ 35.266124] ? bdi_register_va+0x80/0x80 [ 35.270173] ? vsnprintf+0x2cc/0x14f0 [ 35.273959] bdi_register_owner+0x59/0x100 [ 35.278177] __device_add_disk+0xd58/0x10c0 [ 35.282483] ? sprintf+0xc0/0x100 [ 35.285916] ? blk_alloc_devt+0x2d0/0x2d0 [ 35.290047] ? __raw_spin_lock_init+0x28/0x100 [ 35.294698] ? __lockdep_init_map+0x100/0x5a0 [ 35.299184] loop_add+0x628/0x8a0 [ 35.302629] loop_control_ioctl+0x16c/0x480 [ 35.306941] ? loop_lookup+0x1d0/0x1d0 [ 35.310811] ? __vfs_write+0xff/0x770 [ 35.314593] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.319504] ? common_file_perm+0x4e5/0x850 [ 35.323806] ? loop_lookup+0x1d0/0x1d0 [ 35.327676] do_vfs_ioctl+0xcdb/0x12e0 [ 35.331545] ? vfs_write+0x3d7/0x540 [ 35.335244] ? ioctl_preallocate+0x200/0x200 [ 35.339639] ? lock_downgrade+0x720/0x720 [ 35.343775] ? check_preemption_disabled+0x41/0x280 [ 35.348777] ? vfs_write+0x393/0x540 [ 35.352475] ? ksys_write+0x1c8/0x2a0 [ 35.356262] ksys_ioctl+0x9b/0xc0 [ 35.359701] __x64_sys_ioctl+0x6f/0xb0 [ 35.363570] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.368142] do_syscall_64+0xf9/0x620 [ 35.371934] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.377103] RIP: 0033:0x7fa6bb5cf079 [ 35.380798] 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 [ 35.400120] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.407983] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 35.415235] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 35.422484] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 35.429734] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.436984] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 35.481870] FAULT_INJECTION: forcing a failure. [ 35.481870] name failslab, interval 1, probability 0, space 0, times 0 [ 35.493542] CPU: 0 PID: 8099 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 35.501435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.510817] Call Trace: [ 35.513394] dump_stack+0x1fc/0x2ef [ 35.517009] should_fail.cold+0xa/0xf [ 35.520793] ? setup_fault_attr+0x200/0x200 [ 35.525094] ? lock_acquire+0x170/0x3c0 [ 35.529053] __should_failslab+0x115/0x180 [ 35.533271] should_failslab+0x5/0x10 [ 35.537049] kmem_cache_alloc+0x277/0x370 [ 35.541179] __d_alloc+0x2b/0xa10 [ 35.544613] ? lock_downgrade+0x720/0x720 [ 35.548856] ? lock_acquire+0x170/0x3c0 [ 35.552814] d_alloc+0x4a/0x230 [ 35.556078] d_alloc_parallel+0xeb/0x19e0 [ 35.560210] ? mark_held_locks+0xf0/0xf0 [ 35.564252] ? __lock_acquire+0x6de/0x3ff0 [ 35.568508] ? __d_lookup_rcu+0x6b0/0x6b0 [ 35.572643] ? mark_held_locks+0xf0/0xf0 [ 35.576692] ? mark_held_locks+0xf0/0xf0 [ 35.580737] ? __lockdep_init_map+0x100/0x5a0 [ 35.585216] ? __lockdep_init_map+0x100/0x5a0 [ 35.589727] __lookup_slow+0x18d/0x4a0 [ 35.593595] ? check_preemption_disabled+0x41/0x280 [ 35.598599] ? follow_dotdot_rcu+0x1040/0x1040 [ 35.603169] ? __d_lookup+0x411/0x710 [ 35.606974] ? d_lookup+0x18e/0x250 [ 35.610601] lookup_one_len+0x163/0x190 [ 35.614564] ? try_lookup_one_len+0x180/0x180 [ 35.619043] start_creating+0xc9/0x220 [ 35.622916] __debugfs_create_file+0x5e/0x480 [ 35.627395] bdi_register_va.part.0+0x24b/0x750 [ 35.632043] bdi_register+0x12a/0x140 [ 35.635833] ? bdi_register_va+0x80/0x80 [ 35.639885] ? vsnprintf+0x2cc/0x14f0 [ 35.643670] bdi_register_owner+0x59/0x100 [ 35.647887] __device_add_disk+0xd58/0x10c0 [ 35.652195] ? sprintf+0xc0/0x100 [ 35.655627] ? blk_alloc_devt+0x2d0/0x2d0 [ 35.659757] ? __raw_spin_lock_init+0x28/0x100 [ 35.664327] ? __lockdep_init_map+0x100/0x5a0 [ 35.668810] loop_add+0x628/0x8a0 [ 35.672246] loop_control_ioctl+0x16c/0x480 [ 35.676549] ? loop_lookup+0x1d0/0x1d0 [ 35.680419] ? __vfs_write+0xff/0x770 [ 35.684198] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.689106] ? common_file_perm+0x4e5/0x850 [ 35.693412] ? loop_lookup+0x1d0/0x1d0 [ 35.697278] do_vfs_ioctl+0xcdb/0x12e0 [ 35.701147] ? vfs_write+0x3d7/0x540 [ 35.704840] ? ioctl_preallocate+0x200/0x200 [ 35.709228] ? lock_downgrade+0x720/0x720 [ 35.713361] ? check_preemption_disabled+0x41/0x280 [ 35.718377] ? vfs_write+0x393/0x540 [ 35.722087] ? ksys_write+0x1c8/0x2a0 [ 35.725877] ksys_ioctl+0x9b/0xc0 [ 35.729312] __x64_sys_ioctl+0x6f/0xb0 [ 35.733198] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.737847] do_syscall_64+0xf9/0x620 [ 35.741632] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.746804] RIP: 0033:0x7fa6bb5cf079 [ 35.750505] 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 [ 35.769401] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 35.777095] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 35.784352] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 35.791607] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 35.798864] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 35.806129] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 35.850593] FAULT_INJECTION: forcing a failure. [ 35.850593] name failslab, interval 1, probability 0, space 0, times 0 [ 35.862160] CPU: 1 PID: 8107 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 35.870031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.879367] Call Trace: [ 35.881944] dump_stack+0x1fc/0x2ef [ 35.885554] should_fail.cold+0xa/0xf [ 35.889463] ? setup_fault_attr+0x200/0x200 [ 35.893799] ? lock_acquire+0x170/0x3c0 [ 35.898209] __should_failslab+0x115/0x180 [ 35.902435] should_failslab+0x5/0x10 [ 35.906225] kmem_cache_alloc+0x277/0x370 [ 35.910356] alloc_inode+0xab/0x180 [ 35.913963] new_inode+0x1d/0xf0 [ 35.917319] debugfs_get_inode+0x1a/0x130 [ 35.921449] __debugfs_create_file+0xb2/0x480 [ 35.925943] bdi_register_va.part.0+0x24b/0x750 [ 35.930608] bdi_register+0x12a/0x140 [ 35.934397] ? bdi_register_va+0x80/0x80 [ 35.938447] ? vsnprintf+0x2cc/0x14f0 [ 35.942230] bdi_register_owner+0x59/0x100 [ 35.946450] __device_add_disk+0xd58/0x10c0 [ 35.950759] ? sprintf+0xc0/0x100 [ 35.954197] ? blk_alloc_devt+0x2d0/0x2d0 [ 35.958334] ? __raw_spin_lock_init+0x28/0x100 [ 35.962898] ? __lockdep_init_map+0x100/0x5a0 [ 35.967376] loop_add+0x628/0x8a0 [ 35.970900] loop_control_ioctl+0x16c/0x480 [ 35.975203] ? loop_lookup+0x1d0/0x1d0 [ 35.979074] ? __vfs_write+0xff/0x770 [ 35.982855] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 35.987770] ? common_file_perm+0x4e5/0x850 [ 35.992075] ? loop_lookup+0x1d0/0x1d0 [ 35.995942] do_vfs_ioctl+0xcdb/0x12e0 [ 35.999810] ? vfs_write+0x3d7/0x540 [ 36.003506] ? ioctl_preallocate+0x200/0x200 [ 36.007898] ? lock_downgrade+0x720/0x720 [ 36.012035] ? check_preemption_disabled+0x41/0x280 [ 36.017055] ? vfs_write+0x393/0x540 [ 36.020758] ? ksys_write+0x1c8/0x2a0 [ 36.024543] ksys_ioctl+0x9b/0xc0 [ 36.027979] __x64_sys_ioctl+0x6f/0xb0 [ 36.031850] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.036417] do_syscall_64+0xf9/0x620 [ 36.040212] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.045392] RIP: 0033:0x7fa6bb5cf079 [ 36.049084] 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 [ 36.067970] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.075657] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 36.082928] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.090191] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 36.097494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.104752] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 36.181662] FAULT_INJECTION: forcing a failure. [ 36.181662] name failslab, interval 1, probability 0, space 0, times 0 [ 36.193475] CPU: 0 PID: 8117 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 36.201387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.210736] Call Trace: [ 36.213324] dump_stack+0x1fc/0x2ef [ 36.216954] should_fail.cold+0xa/0xf [ 36.220750] ? setup_fault_attr+0x200/0x200 [ 36.225061] ? lock_acquire+0x170/0x3c0 [ 36.229021] __should_failslab+0x115/0x180 [ 36.233239] should_failslab+0x5/0x10 [ 36.237018] kmem_cache_alloc+0x277/0x370 [ 36.241146] alloc_inode+0xab/0x180 [ 36.244753] new_inode+0x1d/0xf0 [ 36.248099] debugfs_get_inode+0x1a/0x130 [ 36.252227] __debugfs_create_file+0xb2/0x480 [ 36.256752] bdi_register_va.part.0+0x24b/0x750 [ 36.261409] bdi_register+0x12a/0x140 [ 36.265198] ? bdi_register_va+0x80/0x80 [ 36.269242] ? vsnprintf+0x2cc/0x14f0 [ 36.273026] bdi_register_owner+0x59/0x100 [ 36.277239] __device_add_disk+0xd58/0x10c0 [ 36.281544] ? sprintf+0xc0/0x100 [ 36.284983] ? blk_alloc_devt+0x2d0/0x2d0 [ 36.289113] ? __raw_spin_lock_init+0x28/0x100 [ 36.293677] ? __lockdep_init_map+0x100/0x5a0 [ 36.298156] loop_add+0x628/0x8a0 [ 36.301594] loop_control_ioctl+0x16c/0x480 [ 36.305895] ? loop_lookup+0x1d0/0x1d0 [ 36.309762] ? __vfs_write+0xff/0x770 [ 36.313543] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.318450] ? common_file_perm+0x4e5/0x850 [ 36.322757] ? loop_lookup+0x1d0/0x1d0 [ 36.326625] do_vfs_ioctl+0xcdb/0x12e0 [ 36.330500] ? vfs_write+0x3d7/0x540 [ 36.334193] ? ioctl_preallocate+0x200/0x200 [ 36.338582] ? lock_downgrade+0x720/0x720 [ 36.342712] ? check_preemption_disabled+0x41/0x280 [ 36.347725] ? vfs_write+0x393/0x540 [ 36.351419] ? ksys_write+0x1c8/0x2a0 [ 36.355197] ksys_ioctl+0x9b/0xc0 [ 36.358631] __x64_sys_ioctl+0x6f/0xb0 [ 36.362516] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.367077] do_syscall_64+0xf9/0x620 [ 36.370858] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.376025] RIP: 0033:0x7fa6bb5cf079 [ 36.379719] 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 [ 36.398599] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.406286] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 36.413535] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.420781] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 36.428027] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.435370] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 36.500381] FAULT_INJECTION: forcing a failure. [ 36.500381] name failslab, interval 1, probability 0, space 0, times 0 [ 36.511723] CPU: 1 PID: 8128 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 36.519594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.528934] Call Trace: [ 36.531549] dump_stack+0x1fc/0x2ef [ 36.535161] should_fail.cold+0xa/0xf [ 36.538942] ? setup_fault_attr+0x200/0x200 [ 36.543245] ? lock_acquire+0x170/0x3c0 [ 36.547218] __should_failslab+0x115/0x180 [ 36.551436] should_failslab+0x5/0x10 [ 36.555217] kmem_cache_alloc+0x277/0x370 [ 36.559346] alloc_inode+0xab/0x180 [ 36.562951] new_inode+0x1d/0xf0 [ 36.566297] debugfs_get_inode+0x1a/0x130 [ 36.570426] __debugfs_create_file+0xb2/0x480 [ 36.574902] bdi_register_va.part.0+0x24b/0x750 [ 36.579551] bdi_register+0x12a/0x140 [ 36.583330] ? bdi_register_va+0x80/0x80 [ 36.587378] ? vsnprintf+0x2cc/0x14f0 [ 36.591161] bdi_register_owner+0x59/0x100 [ 36.595379] __device_add_disk+0xd58/0x10c0 [ 36.599680] ? sprintf+0xc0/0x100 [ 36.603112] ? blk_alloc_devt+0x2d0/0x2d0 [ 36.607241] ? __raw_spin_lock_init+0x28/0x100 [ 36.611803] ? __lockdep_init_map+0x100/0x5a0 [ 36.616279] loop_add+0x628/0x8a0 [ 36.619717] loop_control_ioctl+0x16c/0x480 [ 36.624019] ? loop_lookup+0x1d0/0x1d0 [ 36.627888] ? __vfs_write+0xff/0x770 [ 36.631667] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.636573] ? common_file_perm+0x4e5/0x850 [ 36.640876] ? loop_lookup+0x1d0/0x1d0 [ 36.645003] do_vfs_ioctl+0xcdb/0x12e0 [ 36.648866] ? vfs_write+0x3d7/0x540 [ 36.652565] ? ioctl_preallocate+0x200/0x200 [ 36.657129] ? lock_downgrade+0x720/0x720 [ 36.661261] ? check_preemption_disabled+0x41/0x280 [ 36.666257] ? vfs_write+0x393/0x540 [ 36.669955] ? ksys_write+0x1c8/0x2a0 [ 36.673734] ksys_ioctl+0x9b/0xc0 [ 36.677259] __x64_sys_ioctl+0x6f/0xb0 [ 36.681132] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.685694] do_syscall_64+0xf9/0x620 [ 36.689481] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.694668] RIP: 0033:0x7fa6bb5cf079 [ 36.698361] 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 [ 36.717252] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.724950] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 36.732200] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.739446] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 36.746693] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.753942] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 36.800583] FAULT_INJECTION: forcing a failure. [ 36.800583] name failslab, interval 1, probability 0, space 0, times 0 [ 36.812194] CPU: 1 PID: 8137 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 36.820068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.829400] Call Trace: [ 36.831971] dump_stack+0x1fc/0x2ef [ 36.835585] should_fail.cold+0xa/0xf [ 36.839368] ? setup_fault_attr+0x200/0x200 [ 36.843673] ? lock_acquire+0x170/0x3c0 [ 36.847630] __should_failslab+0x115/0x180 [ 36.851845] should_failslab+0x5/0x10 [ 36.855629] kmem_cache_alloc+0x277/0x370 [ 36.859759] alloc_inode+0xab/0x180 [ 36.863368] new_inode+0x1d/0xf0 [ 36.866712] debugfs_get_inode+0x1a/0x130 [ 36.870836] __debugfs_create_file+0xb2/0x480 [ 36.875313] bdi_register_va.part.0+0x24b/0x750 [ 36.879963] bdi_register+0x12a/0x140 [ 36.883902] ? bdi_register_va+0x80/0x80 [ 36.887944] ? vsnprintf+0x2cc/0x14f0 [ 36.891726] bdi_register_owner+0x59/0x100 [ 36.895941] __device_add_disk+0xd58/0x10c0 [ 36.900246] ? sprintf+0xc0/0x100 [ 36.903681] ? blk_alloc_devt+0x2d0/0x2d0 [ 36.907821] ? __raw_spin_lock_init+0x28/0x100 [ 36.912396] ? __lockdep_init_map+0x100/0x5a0 [ 36.916920] loop_add+0x628/0x8a0 [ 36.920369] loop_control_ioctl+0x16c/0x480 [ 36.924675] ? loop_lookup+0x1d0/0x1d0 [ 36.928672] ? __vfs_write+0xff/0x770 [ 36.932459] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 36.937464] ? common_file_perm+0x4e5/0x850 [ 36.941770] ? loop_lookup+0x1d0/0x1d0 [ 36.945995] do_vfs_ioctl+0xcdb/0x12e0 [ 36.949874] ? vfs_write+0x3d7/0x540 [ 36.953575] ? ioctl_preallocate+0x200/0x200 [ 36.957969] ? lock_downgrade+0x720/0x720 [ 36.962130] ? check_preemption_disabled+0x41/0x280 [ 36.967130] ? vfs_write+0x393/0x540 [ 36.970831] ? ksys_write+0x1c8/0x2a0 [ 36.974621] ksys_ioctl+0x9b/0xc0 [ 36.978065] __x64_sys_ioctl+0x6f/0xb0 [ 36.981936] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.986502] do_syscall_64+0xf9/0x620 [ 36.990287] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.995464] RIP: 0033:0x7fa6bb5cf079 [ 36.999163] 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 [ 37.018048] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.025737] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 37.032989] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.040266] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 37.047544] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.054805] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 37.109687] FAULT_INJECTION: forcing a failure. [ 37.109687] name failslab, interval 1, probability 0, space 0, times 0 [ 37.121476] CPU: 1 PID: 8145 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 37.129355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.138695] Call Trace: [ 37.141266] dump_stack+0x1fc/0x2ef [ 37.144876] should_fail.cold+0xa/0xf [ 37.148663] ? setup_fault_attr+0x200/0x200 [ 37.152964] ? lock_acquire+0x170/0x3c0 [ 37.156969] __should_failslab+0x115/0x180 [ 37.161192] should_failslab+0x5/0x10 [ 37.164978] kmem_cache_alloc+0x277/0x370 [ 37.169247] __d_alloc+0x2b/0xa10 [ 37.172714] d_alloc+0x4a/0x230 [ 37.175981] d_alloc_parallel+0xeb/0x19e0 [ 37.180117] ? mark_held_locks+0xf0/0xf0 [ 37.184159] ? __d_lookup_rcu+0x6b0/0x6b0 [ 37.188292] ? device_add+0xbf8/0x16d0 [ 37.192161] ? mark_held_locks+0xf0/0xf0 [ 37.196203] ? __lockdep_init_map+0x100/0x5a0 [ 37.200682] ? __lockdep_init_map+0x100/0x5a0 [ 37.205160] __lookup_slow+0x18d/0x4a0 [ 37.209031] ? check_preemption_disabled+0x41/0x280 [ 37.214027] ? follow_dotdot_rcu+0x1040/0x1040 [ 37.218589] ? __d_lookup+0x411/0x710 [ 37.222376] ? d_lookup+0x18e/0x250 [ 37.225997] lookup_one_len+0x163/0x190 [ 37.229950] ? try_lookup_one_len+0x180/0x180 [ 37.234434] start_creating+0xc9/0x220 [ 37.238304] debugfs_create_dir+0x1f/0x440 [ 37.242520] bdi_register_va.part.0+0x1f7/0x750 [ 37.247170] bdi_register+0x12a/0x140 [ 37.250949] ? bdi_register_va+0x80/0x80 [ 37.254998] ? vsnprintf+0x2cc/0x14f0 [ 37.258783] bdi_register_owner+0x59/0x100 [ 37.263022] __device_add_disk+0xd58/0x10c0 [ 37.267326] ? sprintf+0xc0/0x100 [ 37.270759] ? blk_alloc_devt+0x2d0/0x2d0 [ 37.274890] ? __raw_spin_lock_init+0x28/0x100 [ 37.279454] ? __lockdep_init_map+0x100/0x5a0 [ 37.283942] loop_add+0x628/0x8a0 [ 37.287382] loop_control_ioctl+0x16c/0x480 [ 37.291779] ? loop_lookup+0x1d0/0x1d0 [ 37.295694] ? __vfs_write+0xff/0x770 [ 37.299525] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.304434] ? common_file_perm+0x4e5/0x850 [ 37.308741] ? loop_lookup+0x1d0/0x1d0 [ 37.312606] do_vfs_ioctl+0xcdb/0x12e0 [ 37.316474] ? vfs_write+0x3d7/0x540 [ 37.320166] ? ioctl_preallocate+0x200/0x200 [ 37.324566] ? lock_downgrade+0x720/0x720 [ 37.328705] ? check_preemption_disabled+0x41/0x280 [ 37.333709] ? vfs_write+0x393/0x540 [ 37.337403] ? ksys_write+0x1c8/0x2a0 [ 37.341184] ksys_ioctl+0x9b/0xc0 [ 37.344616] __x64_sys_ioctl+0x6f/0xb0 [ 37.348483] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.353044] do_syscall_64+0xf9/0x620 [ 37.356826] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.361995] RIP: 0033:0x7fa6bb5cf079 [ 37.365691] 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 [ 37.384574] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.392279] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 37.399529] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 37.406776] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 37.414024] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.421274] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 37.488873] FAULT_INJECTION: forcing a failure. [ 37.488873] name failslab, interval 1, probability 0, space 0, times 0 [ 37.500659] CPU: 1 PID: 8154 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 37.508654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.517987] Call Trace: [ 37.520563] dump_stack+0x1fc/0x2ef [ 37.524171] should_fail.cold+0xa/0xf [ 37.527962] ? setup_fault_attr+0x200/0x200 [ 37.532269] ? lock_acquire+0x170/0x3c0 [ 37.536225] __should_failslab+0x115/0x180 [ 37.540443] should_failslab+0x5/0x10 [ 37.544221] kmem_cache_alloc+0x277/0x370 [ 37.548351] alloc_inode+0xab/0x180 [ 37.552037] new_inode+0x1d/0xf0 [ 37.555386] debugfs_get_inode+0x1a/0x130 [ 37.559513] debugfs_create_dir+0x73/0x440 [ 37.563727] bdi_register_va.part.0+0x1f7/0x750 [ 37.568389] bdi_register+0x12a/0x140 [ 37.572175] ? bdi_register_va+0x80/0x80 [ 37.576217] ? vsnprintf+0x2cc/0x14f0 [ 37.580021] bdi_register_owner+0x59/0x100 [ 37.584304] __device_add_disk+0xd58/0x10c0 [ 37.588607] ? sprintf+0xc0/0x100 [ 37.592046] ? blk_alloc_devt+0x2d0/0x2d0 [ 37.596174] ? __raw_spin_lock_init+0x28/0x100 [ 37.600735] ? __lockdep_init_map+0x100/0x5a0 [ 37.605221] loop_add+0x628/0x8a0 [ 37.608656] loop_control_ioctl+0x16c/0x480 [ 37.612960] ? loop_lookup+0x1d0/0x1d0 [ 37.616831] ? __vfs_write+0xff/0x770 [ 37.620611] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.625518] ? common_file_perm+0x4e5/0x850 [ 37.629820] ? loop_lookup+0x1d0/0x1d0 [ 37.633687] do_vfs_ioctl+0xcdb/0x12e0 [ 37.637557] ? vfs_write+0x3d7/0x540 [ 37.641250] ? ioctl_preallocate+0x200/0x200 [ 37.645639] ? lock_downgrade+0x720/0x720 [ 37.649768] ? check_preemption_disabled+0x41/0x280 [ 37.654770] ? vfs_write+0x393/0x540 [ 37.658465] ? ksys_write+0x1c8/0x2a0 [ 37.662245] ksys_ioctl+0x9b/0xc0 [ 37.665681] __x64_sys_ioctl+0x6f/0xb0 [ 37.669552] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.674115] do_syscall_64+0xf9/0x620 [ 37.677898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.683067] RIP: 0033:0x7fa6bb5cf079 [ 37.686763] 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 [ 37.705640] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.713345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 37.720598] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.727845] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 37.735093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 37.742341] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 37.788589] FAULT_INJECTION: forcing a failure. [ 37.788589] name failslab, interval 1, probability 0, space 0, times 0 [ 37.800105] CPU: 1 PID: 8163 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 37.807973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.817305] Call Trace: [ 37.819875] dump_stack+0x1fc/0x2ef [ 37.823485] should_fail.cold+0xa/0xf [ 37.827274] ? setup_fault_attr+0x200/0x200 [ 37.831589] ? lock_acquire+0x170/0x3c0 [ 37.835550] __should_failslab+0x115/0x180 [ 37.839769] should_failslab+0x5/0x10 [ 37.843550] kmem_cache_alloc+0x277/0x370 [ 37.847684] alloc_inode+0xab/0x180 [ 37.851288] new_inode+0x1d/0xf0 [ 37.854646] debugfs_get_inode+0x1a/0x130 [ 37.858773] debugfs_create_dir+0x73/0x440 [ 37.862991] bdi_register_va.part.0+0x1f7/0x750 [ 37.867730] bdi_register+0x12a/0x140 [ 37.871508] ? bdi_register_va+0x80/0x80 [ 37.875558] ? vsnprintf+0x2cc/0x14f0 [ 37.879349] bdi_register_owner+0x59/0x100 [ 37.883571] __device_add_disk+0xd58/0x10c0 [ 37.887876] ? sprintf+0xc0/0x100 [ 37.891309] ? blk_alloc_devt+0x2d0/0x2d0 [ 37.895463] ? __raw_spin_lock_init+0x28/0x100 [ 37.900032] ? __lockdep_init_map+0x100/0x5a0 [ 37.904517] loop_add+0x628/0x8a0 [ 37.907963] loop_control_ioctl+0x16c/0x480 [ 37.912267] ? loop_lookup+0x1d0/0x1d0 [ 37.916136] ? __vfs_write+0xff/0x770 [ 37.919915] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 37.924834] ? common_file_perm+0x4e5/0x850 [ 37.929139] ? loop_lookup+0x1d0/0x1d0 [ 37.933013] do_vfs_ioctl+0xcdb/0x12e0 [ 37.936883] ? vfs_write+0x3d7/0x540 [ 37.940578] ? ioctl_preallocate+0x200/0x200 [ 37.944974] ? lock_downgrade+0x720/0x720 [ 37.949104] ? check_preemption_disabled+0x41/0x280 [ 37.954116] ? vfs_write+0x393/0x540 [ 37.957814] ? ksys_write+0x1c8/0x2a0 [ 37.961597] ksys_ioctl+0x9b/0xc0 [ 37.965030] __x64_sys_ioctl+0x6f/0xb0 [ 37.968898] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.973458] do_syscall_64+0xf9/0x620 [ 37.977251] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.982602] RIP: 0033:0x7fa6bb5cf079 [ 37.986298] 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 [ 38.005177] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.012872] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 38.020127] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.027374] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 38.034624] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.041871] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 38.089638] FAULT_INJECTION: forcing a failure. [ 38.089638] name failslab, interval 1, probability 0, space 0, times 0 [ 38.101615] CPU: 0 PID: 8172 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 38.109648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.118984] Call Trace: [ 38.121556] dump_stack+0x1fc/0x2ef [ 38.125167] should_fail.cold+0xa/0xf [ 38.128953] ? setup_fault_attr+0x200/0x200 [ 38.133278] ? lock_acquire+0x170/0x3c0 [ 38.137240] __should_failslab+0x115/0x180 [ 38.141465] should_failslab+0x5/0x10 [ 38.145245] kmem_cache_alloc+0x277/0x370 [ 38.149377] alloc_inode+0xab/0x180 [ 38.152981] new_inode+0x1d/0xf0 [ 38.156418] debugfs_get_inode+0x1a/0x130 [ 38.160545] __debugfs_create_file+0xb2/0x480 [ 38.165372] bdi_register_va.part.0+0x24b/0x750 [ 38.170021] bdi_register+0x12a/0x140 [ 38.173808] ? bdi_register_va+0x80/0x80 [ 38.177855] ? vsnprintf+0x2cc/0x14f0 [ 38.181638] bdi_register_owner+0x59/0x100 [ 38.185861] __device_add_disk+0xd58/0x10c0 [ 38.190169] ? sprintf+0xc0/0x100 [ 38.193628] ? blk_alloc_devt+0x2d0/0x2d0 [ 38.197773] ? __raw_spin_lock_init+0x28/0x100 [ 38.202339] ? __lockdep_init_map+0x100/0x5a0 [ 38.206828] loop_add+0x628/0x8a0 [ 38.210294] loop_control_ioctl+0x16c/0x480 [ 38.214654] ? loop_lookup+0x1d0/0x1d0 [ 38.218585] ? __vfs_write+0xff/0x770 [ 38.222372] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.227286] ? common_file_perm+0x4e5/0x850 [ 38.231592] ? loop_lookup+0x1d0/0x1d0 [ 38.235478] do_vfs_ioctl+0xcdb/0x12e0 [ 38.239352] ? vfs_write+0x3d7/0x540 [ 38.243052] ? ioctl_preallocate+0x200/0x200 [ 38.247447] ? lock_downgrade+0x720/0x720 [ 38.251694] ? check_preemption_disabled+0x41/0x280 [ 38.256698] ? vfs_write+0x393/0x540 [ 38.260395] ? ksys_write+0x1c8/0x2a0 [ 38.264186] ksys_ioctl+0x9b/0xc0 [ 38.267623] __x64_sys_ioctl+0x6f/0xb0 [ 38.271497] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.276060] do_syscall_64+0xf9/0x620 [ 38.279853] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.285067] RIP: 0033:0x7fa6bb5cf079 [ 38.288763] 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 [ 38.307819] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.315506] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 38.322758] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.330105] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 38.337355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.344609] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 38.409369] FAULT_INJECTION: forcing a failure. [ 38.409369] name failslab, interval 1, probability 0, space 0, times 0 [ 38.421018] CPU: 0 PID: 8181 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 38.428900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.438235] Call Trace: [ 38.440810] dump_stack+0x1fc/0x2ef [ 38.444422] should_fail.cold+0xa/0xf [ 38.448215] ? setup_fault_attr+0x200/0x200 [ 38.452516] ? lock_acquire+0x170/0x3c0 [ 38.456498] __should_failslab+0x115/0x180 [ 38.460778] should_failslab+0x5/0x10 [ 38.464648] kmem_cache_alloc+0x277/0x370 [ 38.468776] __d_alloc+0x2b/0xa10 [ 38.472211] ? lock_downgrade+0x720/0x720 [ 38.476337] ? lock_acquire+0x170/0x3c0 [ 38.480298] d_alloc+0x4a/0x230 [ 38.483560] d_alloc_parallel+0xeb/0x19e0 [ 38.487692] ? mark_held_locks+0xf0/0xf0 [ 38.491732] ? __lock_acquire+0x6de/0x3ff0 [ 38.495946] ? __d_lookup_rcu+0x6b0/0x6b0 [ 38.500110] ? mark_held_locks+0xf0/0xf0 [ 38.504151] ? mark_held_locks+0xf0/0xf0 [ 38.508192] ? __lockdep_init_map+0x100/0x5a0 [ 38.512667] ? __lockdep_init_map+0x100/0x5a0 [ 38.517144] __lookup_slow+0x18d/0x4a0 [ 38.521021] ? check_preemption_disabled+0x41/0x280 [ 38.526017] ? follow_dotdot_rcu+0x1040/0x1040 [ 38.530581] ? __d_lookup+0x411/0x710 [ 38.534366] ? d_lookup+0x18e/0x250 [ 38.537979] lookup_one_len+0x163/0x190 [ 38.541938] ? try_lookup_one_len+0x180/0x180 [ 38.546419] start_creating+0xc9/0x220 [ 38.550372] __debugfs_create_file+0x5e/0x480 [ 38.554856] bdi_register_va.part.0+0x24b/0x750 [ 38.559508] bdi_register+0x12a/0x140 [ 38.563290] ? bdi_register_va+0x80/0x80 [ 38.567333] ? vsnprintf+0x2cc/0x14f0 [ 38.571115] bdi_register_owner+0x59/0x100 [ 38.575332] __device_add_disk+0xd58/0x10c0 [ 38.579637] ? sprintf+0xc0/0x100 [ 38.583071] ? blk_alloc_devt+0x2d0/0x2d0 [ 38.587199] ? __raw_spin_lock_init+0x28/0x100 [ 38.591760] ? __lockdep_init_map+0x100/0x5a0 [ 38.596239] loop_add+0x628/0x8a0 [ 38.599676] loop_control_ioctl+0x16c/0x480 [ 38.603985] ? loop_lookup+0x1d0/0x1d0 [ 38.607865] ? __vfs_write+0xff/0x770 [ 38.611654] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 38.616570] ? common_file_perm+0x4e5/0x850 [ 38.620869] ? loop_lookup+0x1d0/0x1d0 [ 38.624738] do_vfs_ioctl+0xcdb/0x12e0 [ 38.628618] ? vfs_write+0x3d7/0x540 [ 38.632313] ? ioctl_preallocate+0x200/0x200 [ 38.636701] ? lock_downgrade+0x720/0x720 [ 38.640832] ? check_preemption_disabled+0x41/0x280 [ 38.645829] ? vfs_write+0x393/0x540 [ 38.649523] ? ksys_write+0x1c8/0x2a0 [ 38.653306] ksys_ioctl+0x9b/0xc0 [ 38.656749] __x64_sys_ioctl+0x6f/0xb0 [ 38.660620] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.665197] do_syscall_64+0xf9/0x620 [ 38.668986] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.674154] RIP: 0033:0x7fa6bb5cf079 [ 38.677847] 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 [ 38.696730] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 38.704420] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 38.711668] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.718914] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 38.726163] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 38.733411] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 38.798931] FAULT_INJECTION: forcing a failure. [ 38.798931] name failslab, interval 1, probability 0, space 0, times 0 [ 38.810434] CPU: 1 PID: 8191 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 38.818301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.827643] Call Trace: [ 38.830227] dump_stack+0x1fc/0x2ef [ 38.833846] should_fail.cold+0xa/0xf [ 38.837633] ? setup_fault_attr+0x200/0x200 [ 38.841940] ? lock_acquire+0x170/0x3c0 [ 38.845902] __should_failslab+0x115/0x180 [ 38.850119] should_failslab+0x5/0x10 [ 38.853908] kmem_cache_alloc+0x277/0x370 [ 38.858041] __d_alloc+0x2b/0xa10 [ 38.861474] ? lock_downgrade+0x720/0x720 [ 38.865603] ? lock_acquire+0x170/0x3c0 [ 38.869565] d_alloc+0x4a/0x230 [ 38.872949] d_alloc_parallel+0xeb/0x19e0 [ 38.877088] ? mark_held_locks+0xf0/0xf0 [ 38.881141] ? __lock_acquire+0x6de/0x3ff0 [ 38.885378] ? __d_lookup_rcu+0x6b0/0x6b0 [ 38.889520] ? mark_held_locks+0xf0/0xf0 [ 38.893573] ? mark_held_locks+0xf0/0xf0 [ 38.897625] ? __lockdep_init_map+0x100/0x5a0 [ 38.902106] ? __lockdep_init_map+0x100/0x5a0 [ 38.906588] __lookup_slow+0x18d/0x4a0 [ 38.910470] ? check_preemption_disabled+0x41/0x280 [ 38.915646] ? follow_dotdot_rcu+0x1040/0x1040 [ 38.920220] ? __d_lookup+0x411/0x710 [ 38.924019] ? d_lookup+0x18e/0x250 [ 38.927632] lookup_one_len+0x163/0x190 [ 38.931597] ? try_lookup_one_len+0x180/0x180 [ 38.936087] start_creating+0xc9/0x220 [ 38.939968] __debugfs_create_file+0x5e/0x480 [ 38.944448] bdi_register_va.part.0+0x24b/0x750 [ 38.949099] bdi_register+0x12a/0x140 [ 38.952891] ? bdi_register_va+0x80/0x80 [ 38.956976] ? vsnprintf+0x2cc/0x14f0 [ 38.960780] bdi_register_owner+0x59/0x100 [ 38.965008] __device_add_disk+0xd58/0x10c0 [ 38.969325] ? sprintf+0xc0/0x100 [ 38.972761] ? blk_alloc_devt+0x2d0/0x2d0 [ 38.976913] ? __raw_spin_lock_init+0x28/0x100 [ 38.981512] ? __lockdep_init_map+0x100/0x5a0 [ 38.985995] loop_add+0x628/0x8a0 [ 38.989444] loop_control_ioctl+0x16c/0x480 [ 38.993753] ? loop_lookup+0x1d0/0x1d0 [ 38.997624] ? __vfs_write+0xff/0x770 [ 39.001404] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.006326] ? common_file_perm+0x4e5/0x850 [ 39.010634] ? loop_lookup+0x1d0/0x1d0 [ 39.014538] do_vfs_ioctl+0xcdb/0x12e0 [ 39.018422] ? vfs_write+0x3d7/0x540 [ 39.022131] ? ioctl_preallocate+0x200/0x200 [ 39.026547] ? lock_downgrade+0x720/0x720 [ 39.030684] ? check_preemption_disabled+0x41/0x280 [ 39.035685] ? vfs_write+0x393/0x540 [ 39.039479] ? ksys_write+0x1c8/0x2a0 [ 39.043265] ksys_ioctl+0x9b/0xc0 [ 39.046699] __x64_sys_ioctl+0x6f/0xb0 [ 39.050569] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.055138] do_syscall_64+0xf9/0x620 [ 39.058929] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.064100] RIP: 0033:0x7fa6bb5cf079 [ 39.067798] 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 [ 39.086684] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 39.094386] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 39.101642] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.108904] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 39.116157] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.123408] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 39.188236] FAULT_INJECTION: forcing a failure. [ 39.188236] name failslab, interval 1, probability 0, space 0, times 0 [ 39.200225] CPU: 1 PID: 8201 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 39.208111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.217451] Call Trace: [ 39.220024] dump_stack+0x1fc/0x2ef [ 39.223640] should_fail.cold+0xa/0xf [ 39.227423] ? setup_fault_attr+0x200/0x200 [ 39.231726] ? lock_acquire+0x170/0x3c0 [ 39.235684] __should_failslab+0x115/0x180 [ 39.239911] should_failslab+0x5/0x10 [ 39.243708] kmem_cache_alloc+0x277/0x370 [ 39.247865] alloc_inode+0xab/0x180 [ 39.251484] new_inode+0x1d/0xf0 [ 39.254831] debugfs_get_inode+0x1a/0x130 [ 39.258957] debugfs_create_dir+0x73/0x440 [ 39.263172] bdi_register_va.part.0+0x1f7/0x750 [ 39.267827] bdi_register+0x12a/0x140 [ 39.271619] ? bdi_register_va+0x80/0x80 [ 39.275673] ? vsnprintf+0x2cc/0x14f0 [ 39.279455] bdi_register_owner+0x59/0x100 [ 39.283675] __device_add_disk+0xd58/0x10c0 [ 39.287992] ? sprintf+0xc0/0x100 [ 39.291436] ? blk_alloc_devt+0x2d0/0x2d0 [ 39.295567] ? __raw_spin_lock_init+0x28/0x100 [ 39.300148] ? __lockdep_init_map+0x100/0x5a0 [ 39.304626] loop_add+0x628/0x8a0 [ 39.308060] loop_control_ioctl+0x16c/0x480 [ 39.312372] ? loop_lookup+0x1d0/0x1d0 [ 39.316243] ? __vfs_write+0xff/0x770 [ 39.320022] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.324931] ? common_file_perm+0x4e5/0x850 [ 39.329232] ? loop_lookup+0x1d0/0x1d0 [ 39.333097] do_vfs_ioctl+0xcdb/0x12e0 [ 39.336966] ? vfs_write+0x3d7/0x540 [ 39.340658] ? ioctl_preallocate+0x200/0x200 [ 39.345048] ? lock_downgrade+0x720/0x720 [ 39.349178] ? check_preemption_disabled+0x41/0x280 [ 39.354183] ? vfs_write+0x393/0x540 [ 39.357910] ? ksys_write+0x1c8/0x2a0 [ 39.361695] ksys_ioctl+0x9b/0xc0 [ 39.365128] __x64_sys_ioctl+0x6f/0xb0 [ 39.368996] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.373559] do_syscall_64+0xf9/0x620 [ 39.377341] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.382508] RIP: 0033:0x7fa6bb5cf079 [ 39.386204] 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 [ 39.405089] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.412789] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 39.420041] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.427299] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 39.434546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.441965] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 39.498478] FAULT_INJECTION: forcing a failure. [ 39.498478] name failslab, interval 1, probability 0, space 0, times 0 [ 39.510734] CPU: 0 PID: 8211 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 39.518624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.527957] Call Trace: [ 39.530542] dump_stack+0x1fc/0x2ef [ 39.534161] should_fail.cold+0xa/0xf [ 39.537958] ? setup_fault_attr+0x200/0x200 [ 39.542268] ? lock_acquire+0x170/0x3c0 [ 39.546241] __should_failslab+0x115/0x180 [ 39.550595] should_failslab+0x5/0x10 [ 39.554382] kmem_cache_alloc+0x277/0x370 [ 39.558514] alloc_inode+0xab/0x180 [ 39.562126] new_inode+0x1d/0xf0 [ 39.565479] debugfs_get_inode+0x1a/0x130 [ 39.569610] debugfs_create_dir+0x73/0x440 [ 39.573835] bdi_register_va.part.0+0x1f7/0x750 [ 39.578498] bdi_register+0x12a/0x140 [ 39.582289] ? bdi_register_va+0x80/0x80 [ 39.586336] ? vsnprintf+0x2cc/0x14f0 [ 39.590122] bdi_register_owner+0x59/0x100 [ 39.594338] __device_add_disk+0xd58/0x10c0 [ 39.598655] ? sprintf+0xc0/0x100 [ 39.602101] ? blk_alloc_devt+0x2d0/0x2d0 [ 39.606233] ? __raw_spin_lock_init+0x28/0x100 [ 39.610801] ? __lockdep_init_map+0x100/0x5a0 [ 39.615277] loop_add+0x628/0x8a0 [ 39.618720] loop_control_ioctl+0x16c/0x480 [ 39.623021] ? loop_lookup+0x1d0/0x1d0 [ 39.626890] ? __vfs_write+0xff/0x770 [ 39.630669] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 39.635597] ? common_file_perm+0x4e5/0x850 [ 39.639897] ? loop_lookup+0x1d0/0x1d0 [ 39.643767] do_vfs_ioctl+0xcdb/0x12e0 [ 39.647633] ? vfs_write+0x3d7/0x540 [ 39.651324] ? ioctl_preallocate+0x200/0x200 [ 39.655716] ? lock_downgrade+0x720/0x720 [ 39.659855] ? check_preemption_disabled+0x41/0x280 [ 39.664863] ? vfs_write+0x393/0x540 [ 39.668560] ? ksys_write+0x1c8/0x2a0 [ 39.672350] ksys_ioctl+0x9b/0xc0 [ 39.675784] __x64_sys_ioctl+0x6f/0xb0 [ 39.679657] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.684265] do_syscall_64+0xf9/0x620 [ 39.688052] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.693221] RIP: 0033:0x7fa6bb5cf079 [ 39.696913] 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 [ 39.715792] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.723480] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 39.730729] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.737980] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 39.745235] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 39.752491] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 39.818775] FAULT_INJECTION: forcing a failure. [ 39.818775] name failslab, interval 1, probability 0, space 0, times 0 [ 39.830045] CPU: 0 PID: 8222 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 39.837920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.847255] Call Trace: [ 39.849830] dump_stack+0x1fc/0x2ef [ 39.853444] should_fail.cold+0xa/0xf [ 39.857760] ? setup_fault_attr+0x200/0x200 [ 39.862065] ? lock_acquire+0x170/0x3c0 [ 39.866035] __should_failslab+0x115/0x180 [ 39.870253] should_failslab+0x5/0x10 [ 39.874035] kmem_cache_alloc+0x277/0x370 [ 39.878165] __d_alloc+0x2b/0xa10 [ 39.881604] d_alloc+0x4a/0x230 [ 39.884867] d_alloc_parallel+0xeb/0x19e0 [ 39.889001] ? mark_held_locks+0xf0/0xf0 [ 39.893041] ? __d_lookup_rcu+0x6b0/0x6b0 [ 39.897169] ? device_add+0xbf8/0x16d0 [ 39.901036] ? mark_held_locks+0xf0/0xf0 [ 39.905252] ? __lockdep_init_map+0x100/0x5a0 [ 39.909724] ? __lockdep_init_map+0x100/0x5a0 [ 39.914209] __lookup_slow+0x18d/0x4a0 [ 39.918090] ? check_preemption_disabled+0x41/0x280 [ 39.923106] ? follow_dotdot_rcu+0x1040/0x1040 [ 39.927790] ? __d_lookup+0x411/0x710 [ 39.931585] ? d_lookup+0x18e/0x250 [ 39.935200] lookup_one_len+0x163/0x190 [ 39.939167] ? try_lookup_one_len+0x180/0x180 [ 39.943654] start_creating+0xc9/0x220 [ 39.947529] debugfs_create_dir+0x1f/0x440 [ 39.951761] bdi_register_va.part.0+0x1f7/0x750 [ 39.956413] bdi_register+0x12a/0x140 [ 39.960200] ? bdi_register_va+0x80/0x80 [ 39.964257] ? vsnprintf+0x2cc/0x14f0 [ 39.968054] bdi_register_owner+0x59/0x100 [ 39.972279] __device_add_disk+0xd58/0x10c0 [ 39.976592] ? sprintf+0xc0/0x100 [ 39.980029] ? blk_alloc_devt+0x2d0/0x2d0 [ 39.984165] ? __raw_spin_lock_init+0x28/0x100 [ 39.988731] ? __lockdep_init_map+0x100/0x5a0 [ 39.993212] loop_add+0x628/0x8a0 [ 39.996651] loop_control_ioctl+0x16c/0x480 [ 40.000953] ? loop_lookup+0x1d0/0x1d0 [ 40.004933] ? __vfs_write+0xff/0x770 [ 40.008728] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 40.013645] ? common_file_perm+0x4e5/0x850 [ 40.017963] ? loop_lookup+0x1d0/0x1d0 [ 40.021837] do_vfs_ioctl+0xcdb/0x12e0 [ 40.025711] ? vfs_write+0x3d7/0x540 [ 40.029407] ? ioctl_preallocate+0x200/0x200 [ 40.033797] ? lock_downgrade+0x720/0x720 [ 40.037939] ? check_preemption_disabled+0x41/0x280 [ 40.042950] ? vfs_write+0x393/0x540 [ 40.046650] ? ksys_write+0x1c8/0x2a0 [ 40.050441] ksys_ioctl+0x9b/0xc0 [ 40.053878] __x64_sys_ioctl+0x6f/0xb0 [ 40.057747] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.062309] do_syscall_64+0xf9/0x620 [ 40.066214] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.071399] RIP: 0033:0x7fa6bb5cf079 [ 40.075101] 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 [ 40.093997] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.101702] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 40.108957] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 40.116207] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 40.123556] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 40.130809] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 40.197016] FAULT_INJECTION: forcing a failure. [ 40.197016] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 40.208839] CPU: 0 PID: 8229 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 40.216731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.226075] Call Trace: [ 40.228651] dump_stack+0x1fc/0x2ef [ 40.232263] should_fail.cold+0xa/0xf [ 40.236056] ? setup_fault_attr+0x200/0x200 [ 40.240361] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 40.245450] ? __wake_up_common_lock+0xe0/0x170 [ 40.250102] __alloc_pages_nodemask+0x239/0x2890 [ 40.254842] ? d_add+0x393/0x650 [ 40.258209] ? __lock_acquire+0x6de/0x3ff0 [ 40.262428] ? _raw_spin_unlock+0x29/0x40 [ 40.266558] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 40.271386] ? __lookup_slow+0x298/0x4a0 [ 40.275431] ? follow_dotdot_rcu+0x1040/0x1040 [ 40.280000] ? __d_lookup+0x411/0x710 [ 40.283789] cache_grow_begin+0xa4/0x8a0 [ 40.287838] ? setup_fault_attr+0x200/0x200 [ 40.292142] ? lock_acquire+0x170/0x3c0 [ 40.296096] cache_alloc_refill+0x273/0x340 [ 40.300418] kmem_cache_alloc+0x346/0x370 [ 40.304637] alloc_inode+0xab/0x180 [ 40.308244] new_inode+0x1d/0xf0 [ 40.311593] debugfs_get_inode+0x1a/0x130 [ 40.315721] debugfs_create_dir+0x73/0x440 [ 40.319939] bdi_register_va.part.0+0x1f7/0x750 [ 40.324591] bdi_register+0x12a/0x140 [ 40.328370] ? bdi_register_va+0x80/0x80 [ 40.332418] ? vsnprintf+0x2cc/0x14f0 [ 40.336211] bdi_register_owner+0x59/0x100 [ 40.340437] __device_add_disk+0xd58/0x10c0 [ 40.344741] ? sprintf+0xc0/0x100 [ 40.348177] ? blk_alloc_devt+0x2d0/0x2d0 [ 40.352308] ? __raw_spin_lock_init+0x28/0x100 [ 40.356871] ? __lockdep_init_map+0x100/0x5a0 [ 40.361358] loop_add+0x628/0x8a0 [ 40.364841] loop_control_ioctl+0x16c/0x480 [ 40.369149] ? loop_lookup+0x1d0/0x1d0 [ 40.373018] ? __vfs_write+0xff/0x770 [ 40.376808] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 40.381724] ? common_file_perm+0x4e5/0x850 [ 40.386030] ? loop_lookup+0x1d0/0x1d0 [ 40.389911] do_vfs_ioctl+0xcdb/0x12e0 [ 40.393787] ? vfs_write+0x3d7/0x540 [ 40.397486] ? ioctl_preallocate+0x200/0x200 [ 40.401885] ? lock_downgrade+0x720/0x720 [ 40.406022] ? check_preemption_disabled+0x41/0x280 [ 40.411028] ? vfs_write+0x393/0x540 [ 40.414724] ? ksys_write+0x1c8/0x2a0 [ 40.418506] ksys_ioctl+0x9b/0xc0 [ 40.421944] __x64_sys_ioctl+0x6f/0xb0 [ 40.425818] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.430391] do_syscall_64+0xf9/0x620 [ 40.434182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.439352] RIP: 0033:0x7fa6bb5cf079 [ 40.443049] 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 [ 40.461948] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.469643] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 40.476899] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.484160] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 40.491418] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 40.498668] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 40.567565] FAULT_INJECTION: forcing a failure. [ 40.567565] name failslab, interval 1, probability 0, space 0, times 0 [ 40.579144] CPU: 1 PID: 8239 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 40.587014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.596359] Call Trace: [ 40.598938] dump_stack+0x1fc/0x2ef [ 40.602551] should_fail.cold+0xa/0xf [ 40.606338] ? setup_fault_attr+0x200/0x200 [ 40.610645] ? lock_acquire+0x170/0x3c0 [ 40.614605] __should_failslab+0x115/0x180 [ 40.618823] should_failslab+0x5/0x10 [ 40.622622] kmem_cache_alloc+0x277/0x370 [ 40.626754] alloc_inode+0xab/0x180 [ 40.630490] new_inode+0x1d/0xf0 [ 40.633843] debugfs_get_inode+0x1a/0x130 [ 40.638039] debugfs_create_dir+0x73/0x440 [ 40.642288] bdi_register_va.part.0+0x1f7/0x750 [ 40.646942] bdi_register+0x12a/0x140 [ 40.650735] ? bdi_register_va+0x80/0x80 [ 40.654784] ? vsnprintf+0x2cc/0x14f0 [ 40.658576] bdi_register_owner+0x59/0x100 [ 40.662795] __device_add_disk+0xd58/0x10c0 [ 40.667104] ? sprintf+0xc0/0x100 [ 40.670544] ? blk_alloc_devt+0x2d0/0x2d0 [ 40.674680] ? __raw_spin_lock_init+0x28/0x100 [ 40.679254] ? __lockdep_init_map+0x100/0x5a0 [ 40.683735] loop_add+0x628/0x8a0 [ 40.687174] loop_control_ioctl+0x16c/0x480 [ 40.691480] ? loop_lookup+0x1d0/0x1d0 [ 40.695357] ? __vfs_write+0xff/0x770 [ 40.699137] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 40.704057] ? common_file_perm+0x4e5/0x850 [ 40.708361] ? loop_lookup+0x1d0/0x1d0 [ 40.712232] do_vfs_ioctl+0xcdb/0x12e0 [ 40.716106] ? vfs_write+0x3d7/0x540 [ 40.719810] ? ioctl_preallocate+0x200/0x200 [ 40.724201] ? lock_downgrade+0x720/0x720 [ 40.728333] ? check_preemption_disabled+0x41/0x280 [ 40.733564] ? vfs_write+0x393/0x540 [ 40.737261] ? ksys_write+0x1c8/0x2a0 [ 40.741049] ksys_ioctl+0x9b/0xc0 [ 40.744481] __x64_sys_ioctl+0x6f/0xb0 [ 40.748358] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.752919] do_syscall_64+0xf9/0x620 [ 40.756718] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.761885] RIP: 0033:0x7fa6bb5cf079 [ 40.765580] 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 [ 40.784462] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.792158] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 40.799408] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.806659] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 40.813911] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 40.821165] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 40.886661] FAULT_INJECTION: forcing a failure. [ 40.886661] name failslab, interval 1, probability 0, space 0, times 0 [ 40.898482] CPU: 0 PID: 8249 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 40.906369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.916491] Call Trace: [ 40.919153] dump_stack+0x1fc/0x2ef [ 40.922774] should_fail.cold+0xa/0xf [ 40.926560] ? setup_fault_attr+0x200/0x200 [ 40.930873] ? lock_acquire+0x170/0x3c0 [ 40.934836] __should_failslab+0x115/0x180 [ 40.939060] should_failslab+0x5/0x10 [ 40.942845] kmem_cache_alloc+0x277/0x370 [ 40.946978] __d_alloc+0x2b/0xa10 [ 40.950423] ? lock_downgrade+0x720/0x720 [ 40.954552] ? lock_acquire+0x170/0x3c0 [ 40.958521] d_alloc+0x4a/0x230 [ 40.961793] d_alloc_parallel+0xeb/0x19e0 [ 40.965930] ? mark_held_locks+0xf0/0xf0 [ 40.969982] ? __lock_acquire+0x6de/0x3ff0 [ 40.974202] ? __d_lookup_rcu+0x6b0/0x6b0 [ 40.978332] ? mark_held_locks+0xf0/0xf0 [ 40.982380] ? mark_held_locks+0xf0/0xf0 [ 40.986426] ? __lockdep_init_map+0x100/0x5a0 [ 40.990905] ? __lockdep_init_map+0x100/0x5a0 [ 40.995396] __lookup_slow+0x18d/0x4a0 [ 40.999275] ? check_preemption_disabled+0x41/0x280 [ 41.004277] ? follow_dotdot_rcu+0x1040/0x1040 [ 41.008842] ? __d_lookup+0x411/0x710 [ 41.012632] ? d_lookup+0x18e/0x250 [ 41.016244] lookup_one_len+0x163/0x190 [ 41.020203] ? try_lookup_one_len+0x180/0x180 [ 41.024682] start_creating+0xc9/0x220 [ 41.028547] __debugfs_create_file+0x5e/0x480 [ 41.033025] bdi_register_va.part.0+0x24b/0x750 [ 41.037676] bdi_register+0x12a/0x140 [ 41.041458] ? bdi_register_va+0x80/0x80 [ 41.045503] ? vsnprintf+0x2cc/0x14f0 [ 41.049284] bdi_register_owner+0x59/0x100 [ 41.053499] __device_add_disk+0xd58/0x10c0 [ 41.057806] ? sprintf+0xc0/0x100 [ 41.061245] ? blk_alloc_devt+0x2d0/0x2d0 [ 41.065377] ? __raw_spin_lock_init+0x28/0x100 [ 41.069940] ? __lockdep_init_map+0x100/0x5a0 [ 41.074495] loop_add+0x628/0x8a0 [ 41.077949] loop_control_ioctl+0x16c/0x480 [ 41.082257] ? loop_lookup+0x1d0/0x1d0 [ 41.086128] ? __vfs_write+0xff/0x770 [ 41.089911] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 41.094854] ? common_file_perm+0x4e5/0x850 [ 41.099162] ? loop_lookup+0x1d0/0x1d0 [ 41.103033] do_vfs_ioctl+0xcdb/0x12e0 [ 41.106909] ? vfs_write+0x3d7/0x540 [ 41.110604] ? ioctl_preallocate+0x200/0x200 [ 41.114997] ? lock_downgrade+0x720/0x720 [ 41.119172] ? check_preemption_disabled+0x41/0x280 [ 41.124181] ? vfs_write+0x393/0x540 [ 41.127877] ? ksys_write+0x1c8/0x2a0 [ 41.131685] ksys_ioctl+0x9b/0xc0 [ 41.135138] __x64_sys_ioctl+0x6f/0xb0 [ 41.139010] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.143578] do_syscall_64+0xf9/0x620 [ 41.147371] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.152552] RIP: 0033:0x7fa6bb5cf079 [ 41.156246] 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 [ 41.175153] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program [ 41.182846] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 41.190282] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.197540] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 41.204789] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 41.212040] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 41.276590] FAULT_INJECTION: forcing a failure. [ 41.276590] name failslab, interval 1, probability 0, space 0, times 0 [ 41.287848] CPU: 1 PID: 8259 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 41.295708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.305229] Call Trace: [ 41.307806] dump_stack+0x1fc/0x2ef [ 41.311426] should_fail.cold+0xa/0xf [ 41.315211] ? setup_fault_attr+0x200/0x200 [ 41.319696] ? lock_acquire+0x170/0x3c0 [ 41.323666] __should_failslab+0x115/0x180 [ 41.327887] should_failslab+0x5/0x10 [ 41.331677] kmem_cache_alloc+0x277/0x370 [ 41.335911] alloc_inode+0xab/0x180 [ 41.339524] new_inode+0x1d/0xf0 [ 41.342894] debugfs_get_inode+0x1a/0x130 [ 41.347032] debugfs_create_dir+0x73/0x440 [ 41.351259] bdi_register_va.part.0+0x1f7/0x750 [ 41.355921] bdi_register+0x12a/0x140 [ 41.359705] ? bdi_register_va+0x80/0x80 [ 41.363775] ? vsnprintf+0x2cc/0x14f0 [ 41.367580] bdi_register_owner+0x59/0x100 [ 41.371896] __device_add_disk+0xd58/0x10c0 [ 41.376203] ? sprintf+0xc0/0x100 [ 41.379719] ? blk_alloc_devt+0x2d0/0x2d0 [ 41.383858] ? __raw_spin_lock_init+0x28/0x100 [ 41.388497] ? __lockdep_init_map+0x100/0x5a0 [ 41.393034] loop_add+0x628/0x8a0 [ 41.396470] loop_control_ioctl+0x16c/0x480 [ 41.400779] ? loop_lookup+0x1d0/0x1d0 [ 41.404648] ? __vfs_write+0xff/0x770 [ 41.408431] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 41.413359] ? common_file_perm+0x4e5/0x850 [ 41.417661] ? loop_lookup+0x1d0/0x1d0 [ 41.421527] do_vfs_ioctl+0xcdb/0x12e0 [ 41.425394] ? vfs_write+0x3d7/0x540 [ 41.429089] ? ioctl_preallocate+0x200/0x200 [ 41.433480] ? lock_downgrade+0x720/0x720 [ 41.437614] ? check_preemption_disabled+0x41/0x280 [ 41.442620] ? vfs_write+0x393/0x540 [ 41.446314] ? ksys_write+0x1c8/0x2a0 [ 41.450098] ksys_ioctl+0x9b/0xc0 [ 41.453677] __x64_sys_ioctl+0x6f/0xb0 [ 41.457546] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.462108] do_syscall_64+0xf9/0x620 [ 41.465892] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.471110] RIP: 0033:0x7fa6bb5cf079 [ 41.474811] 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 [ 41.493695] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.501380] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 41.508634] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.515886] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 41.523133] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 41.530383] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 41.576529] FAULT_INJECTION: forcing a failure. [ 41.576529] name failslab, interval 1, probability 0, space 0, times 0 [ 41.588158] CPU: 0 PID: 8268 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 41.596032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.605371] Call Trace: [ 41.607945] dump_stack+0x1fc/0x2ef [ 41.611558] should_fail.cold+0xa/0xf [ 41.615341] ? setup_fault_attr+0x200/0x200 [ 41.619644] ? lock_acquire+0x170/0x3c0 [ 41.623602] __should_failslab+0x115/0x180 [ 41.627818] should_failslab+0x5/0x10 [ 41.631606] kmem_cache_alloc+0x277/0x370 [ 41.635743] __d_alloc+0x2b/0xa10 [ 41.639178] d_alloc+0x4a/0x230 [ 41.642439] d_alloc_parallel+0xeb/0x19e0 [ 41.646570] ? mark_held_locks+0xf0/0xf0 [ 41.650612] ? __d_lookup_rcu+0x6b0/0x6b0 [ 41.654740] ? device_add+0xbf8/0x16d0 [ 41.658606] ? mark_held_locks+0xf0/0xf0 [ 41.662734] ? __lockdep_init_map+0x100/0x5a0 [ 41.667209] ? __lockdep_init_map+0x100/0x5a0 [ 41.671690] __lookup_slow+0x18d/0x4a0 [ 41.675562] ? check_preemption_disabled+0x41/0x280 [ 41.680568] ? follow_dotdot_rcu+0x1040/0x1040 [ 41.685135] ? __d_lookup+0x411/0x710 [ 41.688924] ? d_lookup+0x18e/0x250 [ 41.692536] lookup_one_len+0x163/0x190 [ 41.696490] ? try_lookup_one_len+0x180/0x180 [ 41.700967] start_creating+0xc9/0x220 [ 41.704841] debugfs_create_dir+0x1f/0x440 [ 41.709074] bdi_register_va.part.0+0x1f7/0x750 [ 41.713722] bdi_register+0x12a/0x140 [ 41.717503] ? bdi_register_va+0x80/0x80 [ 41.721546] ? vsnprintf+0x2cc/0x14f0 [ 41.725329] bdi_register_owner+0x59/0x100 [ 41.729544] __device_add_disk+0xd58/0x10c0 [ 41.733850] ? sprintf+0xc0/0x100 [ 41.737285] ? blk_alloc_devt+0x2d0/0x2d0 [ 41.741431] ? __raw_spin_lock_init+0x28/0x100 [ 41.745992] ? __lockdep_init_map+0x100/0x5a0 [ 41.750469] loop_add+0x628/0x8a0 [ 41.753903] loop_control_ioctl+0x16c/0x480 [ 41.758294] ? loop_lookup+0x1d0/0x1d0 [ 41.762161] ? __vfs_write+0xff/0x770 [ 41.765942] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 41.770853] ? common_file_perm+0x4e5/0x850 [ 41.775154] ? loop_lookup+0x1d0/0x1d0 [ 41.779021] do_vfs_ioctl+0xcdb/0x12e0 [ 41.782888] ? vfs_write+0x3d7/0x540 [ 41.786579] ? ioctl_preallocate+0x200/0x200 [ 41.790973] ? lock_downgrade+0x720/0x720 [ 41.795103] ? check_preemption_disabled+0x41/0x280 [ 41.800100] ? vfs_write+0x393/0x540 [ 41.803801] ? ksys_write+0x1c8/0x2a0 [ 41.807592] ksys_ioctl+0x9b/0xc0 [ 41.811026] __x64_sys_ioctl+0x6f/0xb0 [ 41.814911] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.819475] do_syscall_64+0xf9/0x620 [ 41.823263] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.828434] RIP: 0033:0x7fa6bb5cf079 [ 41.832130] 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 [ 41.851013] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.858737] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 41.865985] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 41.873236] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 41.880484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 41.887734] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 41.955874] FAULT_INJECTION: forcing a failure. [ 41.955874] name failslab, interval 1, probability 0, space 0, times 0 [ 41.967945] CPU: 0 PID: 8275 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 41.975824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.985159] Call Trace: [ 41.987731] dump_stack+0x1fc/0x2ef [ 41.991343] should_fail.cold+0xa/0xf [ 41.995132] ? setup_fault_attr+0x200/0x200 [ 41.999439] ? lock_acquire+0x170/0x3c0 [ 42.003401] __should_failslab+0x115/0x180 [ 42.007622] should_failslab+0x5/0x10 [ 42.011406] kmem_cache_alloc+0x277/0x370 [ 42.015540] alloc_inode+0xab/0x180 [ 42.019171] new_inode+0x1d/0xf0 [ 42.022525] debugfs_get_inode+0x1a/0x130 [ 42.026656] debugfs_create_dir+0x73/0x440 [ 42.030875] bdi_register_va.part.0+0x1f7/0x750 [ 42.035533] bdi_register+0x12a/0x140 [ 42.039316] ? bdi_register_va+0x80/0x80 [ 42.043363] ? vsnprintf+0x2cc/0x14f0 [ 42.047149] bdi_register_owner+0x59/0x100 [ 42.051376] __device_add_disk+0xd58/0x10c0 [ 42.055682] ? sprintf+0xc0/0x100 [ 42.059129] ? blk_alloc_devt+0x2d0/0x2d0 [ 42.063276] ? __raw_spin_lock_init+0x28/0x100 [ 42.067851] ? __lockdep_init_map+0x100/0x5a0 [ 42.072343] loop_add+0x628/0x8a0 [ 42.075787] loop_control_ioctl+0x16c/0x480 [ 42.080091] ? loop_lookup+0x1d0/0x1d0 [ 42.083962] ? __vfs_write+0xff/0x770 [ 42.087743] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 42.092654] ? common_file_perm+0x4e5/0x850 [ 42.096960] ? loop_lookup+0x1d0/0x1d0 [ 42.100830] do_vfs_ioctl+0xcdb/0x12e0 [ 42.104702] ? vfs_write+0x3d7/0x540 [ 42.108396] ? ioctl_preallocate+0x200/0x200 [ 42.112786] ? lock_downgrade+0x720/0x720 [ 42.116916] ? check_preemption_disabled+0x41/0x280 [ 42.121917] ? vfs_write+0x393/0x540 [ 42.125613] ? ksys_write+0x1c8/0x2a0 [ 42.129396] ksys_ioctl+0x9b/0xc0 [ 42.132837] __x64_sys_ioctl+0x6f/0xb0 [ 42.136704] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.141271] do_syscall_64+0xf9/0x620 [ 42.145055] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.150225] RIP: 0033:0x7fa6bb5cf079 [ 42.153920] 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 [ 42.172812] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.180505] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 42.187760] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.195100] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 42.202353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 42.209615] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 42.255888] FAULT_INJECTION: forcing a failure. [ 42.255888] name failslab, interval 1, probability 0, space 0, times 0 [ 42.267805] CPU: 0 PID: 8285 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 42.275677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.285011] Call Trace: [ 42.287584] dump_stack+0x1fc/0x2ef [ 42.291195] should_fail.cold+0xa/0xf [ 42.294979] ? setup_fault_attr+0x200/0x200 [ 42.299284] ? lock_acquire+0x170/0x3c0 [ 42.303247] __should_failslab+0x115/0x180 [ 42.307472] should_failslab+0x5/0x10 [ 42.311260] kmem_cache_alloc+0x277/0x370 [ 42.315424] alloc_inode+0xab/0x180 [ 42.319482] new_inode+0x1d/0xf0 [ 42.322833] debugfs_get_inode+0x1a/0x130 [ 42.326965] debugfs_create_dir+0x73/0x440 [ 42.331182] bdi_register_va.part.0+0x1f7/0x750 [ 42.335834] bdi_register+0x12a/0x140 [ 42.339620] ? bdi_register_va+0x80/0x80 [ 42.343665] ? vsnprintf+0x2cc/0x14f0 [ 42.347452] bdi_register_owner+0x59/0x100 [ 42.351668] __device_add_disk+0xd58/0x10c0 [ 42.355993] ? sprintf+0xc0/0x100 [ 42.359429] ? blk_alloc_devt+0x2d0/0x2d0 [ 42.363568] ? __raw_spin_lock_init+0x28/0x100 [ 42.368137] ? __lockdep_init_map+0x100/0x5a0 [ 42.372613] loop_add+0x628/0x8a0 [ 42.376077] loop_control_ioctl+0x16c/0x480 [ 42.380387] ? loop_lookup+0x1d0/0x1d0 [ 42.384260] ? __vfs_write+0xff/0x770 [ 42.388039] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 42.392949] ? common_file_perm+0x4e5/0x850 [ 42.397258] ? loop_lookup+0x1d0/0x1d0 [ 42.401131] do_vfs_ioctl+0xcdb/0x12e0 [ 42.405002] ? vfs_write+0x3d7/0x540 [ 42.408696] ? ioctl_preallocate+0x200/0x200 [ 42.413085] ? lock_downgrade+0x720/0x720 [ 42.417215] ? check_preemption_disabled+0x41/0x280 [ 42.422215] ? vfs_write+0x393/0x540 [ 42.425912] ? ksys_write+0x1c8/0x2a0 [ 42.429693] ksys_ioctl+0x9b/0xc0 [ 42.433132] __x64_sys_ioctl+0x6f/0xb0 [ 42.436999] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.441561] do_syscall_64+0xf9/0x620 [ 42.445348] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.450520] RIP: 0033:0x7fa6bb5cf079 [ 42.454214] 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 [ 42.473094] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.480784] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 42.488036] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.495286] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 42.502535] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 42.509788] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 42.575690] FAULT_INJECTION: forcing a failure. [ 42.575690] name failslab, interval 1, probability 0, space 0, times 0 [ 42.587222] CPU: 1 PID: 8296 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 42.595091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.604426] Call Trace: [ 42.606999] dump_stack+0x1fc/0x2ef [ 42.610610] should_fail.cold+0xa/0xf [ 42.614396] ? setup_fault_attr+0x200/0x200 [ 42.618699] ? lock_acquire+0x170/0x3c0 [ 42.622659] __should_failslab+0x115/0x180 [ 42.626878] should_failslab+0x5/0x10 [ 42.630659] kmem_cache_alloc+0x277/0x370 [ 42.634804] alloc_inode+0xab/0x180 [ 42.638416] new_inode+0x1d/0xf0 [ 42.641761] debugfs_get_inode+0x1a/0x130 [ 42.645891] debugfs_create_dir+0x73/0x440 [ 42.650115] bdi_register_va.part.0+0x1f7/0x750 [ 42.654772] bdi_register+0x12a/0x140 [ 42.658553] ? bdi_register_va+0x80/0x80 [ 42.662597] ? vsnprintf+0x2cc/0x14f0 [ 42.666379] bdi_register_owner+0x59/0x100 [ 42.670596] __device_add_disk+0xd58/0x10c0 [ 42.674900] ? sprintf+0xc0/0x100 [ 42.678334] ? blk_alloc_devt+0x2d0/0x2d0 [ 42.682466] ? __raw_spin_lock_init+0x28/0x100 [ 42.687030] ? __lockdep_init_map+0x100/0x5a0 [ 42.691509] loop_add+0x628/0x8a0 [ 42.695080] loop_control_ioctl+0x16c/0x480 [ 42.699383] ? loop_lookup+0x1d0/0x1d0 [ 42.703253] ? __vfs_write+0xff/0x770 [ 42.707121] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 42.712032] ? common_file_perm+0x4e5/0x850 [ 42.716348] ? loop_lookup+0x1d0/0x1d0 [ 42.720215] do_vfs_ioctl+0xcdb/0x12e0 [ 42.724087] ? vfs_write+0x3d7/0x540 [ 42.727780] ? ioctl_preallocate+0x200/0x200 [ 42.732227] ? lock_downgrade+0x720/0x720 [ 42.736366] ? check_preemption_disabled+0x41/0x280 [ 42.741371] ? vfs_write+0x393/0x540 [ 42.745078] ? ksys_write+0x1c8/0x2a0 [ 42.748866] ksys_ioctl+0x9b/0xc0 [ 42.752311] __x64_sys_ioctl+0x6f/0xb0 [ 42.756193] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.760758] do_syscall_64+0xf9/0x620 [ 42.764545] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.769715] RIP: 0033:0x7fa6bb5cf079 [ 42.773410] 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 [ 42.792291] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.799979] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 42.807235] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.814487] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 42.821824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 42.829073] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 42.895546] FAULT_INJECTION: forcing a failure. [ 42.895546] name failslab, interval 1, probability 0, space 0, times 0 [ 42.908115] CPU: 0 PID: 8305 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 42.916095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.925451] Call Trace: [ 42.928025] dump_stack+0x1fc/0x2ef [ 42.931637] should_fail.cold+0xa/0xf [ 42.935426] ? setup_fault_attr+0x200/0x200 [ 42.939735] ? lock_acquire+0x170/0x3c0 [ 42.943696] __should_failslab+0x115/0x180 [ 42.947915] should_failslab+0x5/0x10 [ 42.951697] kmem_cache_alloc+0x277/0x370 [ 42.955830] alloc_inode+0xab/0x180 [ 42.959440] new_inode+0x1d/0xf0 [ 42.962788] debugfs_get_inode+0x1a/0x130 [ 42.966918] debugfs_create_dir+0x73/0x440 [ 42.971144] bdi_register_va.part.0+0x1f7/0x750 [ 42.975802] bdi_register+0x12a/0x140 [ 42.979585] ? bdi_register_va+0x80/0x80 [ 42.983633] ? vsnprintf+0x2cc/0x14f0 [ 42.987420] bdi_register_owner+0x59/0x100 [ 42.991639] __device_add_disk+0xd58/0x10c0 [ 42.995945] ? sprintf+0xc0/0x100 [ 42.999381] ? blk_alloc_devt+0x2d0/0x2d0 [ 43.003520] ? __raw_spin_lock_init+0x28/0x100 [ 43.008089] ? __lockdep_init_map+0x100/0x5a0 [ 43.012571] loop_add+0x628/0x8a0 [ 43.016010] loop_control_ioctl+0x16c/0x480 [ 43.020313] ? loop_lookup+0x1d0/0x1d0 [ 43.024183] ? __vfs_write+0xff/0x770 [ 43.027965] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 43.032877] ? common_file_perm+0x4e5/0x850 [ 43.037181] ? loop_lookup+0x1d0/0x1d0 [ 43.041051] do_vfs_ioctl+0xcdb/0x12e0 [ 43.044921] ? vfs_write+0x3d7/0x540 [ 43.048617] ? ioctl_preallocate+0x200/0x200 [ 43.053011] ? lock_downgrade+0x720/0x720 [ 43.057154] ? check_preemption_disabled+0x41/0x280 [ 43.062167] ? vfs_write+0x393/0x540 [ 43.065866] ? ksys_write+0x1c8/0x2a0 [ 43.069651] ksys_ioctl+0x9b/0xc0 [ 43.073087] __x64_sys_ioctl+0x6f/0xb0 [ 43.076987] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.081574] do_syscall_64+0xf9/0x620 [ 43.085366] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.090537] RIP: 0033:0x7fa6bb5cf079 [ 43.094232] 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 [ 43.113114] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.120810] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 43.128064] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.135315] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 43.142573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 43.149830] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 43.215535] FAULT_INJECTION: forcing a failure. [ 43.215535] name failslab, interval 1, probability 0, space 0, times 0 [ 43.227259] CPU: 0 PID: 8315 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 43.235135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.244469] Call Trace: [ 43.247046] dump_stack+0x1fc/0x2ef [ 43.250662] should_fail.cold+0xa/0xf [ 43.254448] ? setup_fault_attr+0x200/0x200 [ 43.258756] ? lock_acquire+0x170/0x3c0 [ 43.262717] __should_failslab+0x115/0x180 [ 43.266937] should_failslab+0x5/0x10 [ 43.270717] kmem_cache_alloc+0x277/0x370 [ 43.274850] __d_alloc+0x2b/0xa10 [ 43.278284] ? lock_downgrade+0x720/0x720 [ 43.282410] ? lock_acquire+0x170/0x3c0 [ 43.286369] d_alloc+0x4a/0x230 [ 43.289635] d_alloc_parallel+0xeb/0x19e0 [ 43.293788] ? mark_held_locks+0xf0/0xf0 [ 43.297846] ? __lock_acquire+0x6de/0x3ff0 [ 43.302067] ? __d_lookup_rcu+0x6b0/0x6b0 [ 43.306201] ? mark_held_locks+0xf0/0xf0 [ 43.310250] ? mark_held_locks+0xf0/0xf0 [ 43.314294] ? __lockdep_init_map+0x100/0x5a0 [ 43.318775] ? __lockdep_init_map+0x100/0x5a0 [ 43.323255] __lookup_slow+0x18d/0x4a0 [ 43.327134] ? check_preemption_disabled+0x41/0x280 [ 43.332134] ? follow_dotdot_rcu+0x1040/0x1040 [ 43.336701] ? __d_lookup+0x411/0x710 [ 43.340488] ? d_lookup+0x18e/0x250 [ 43.344096] lookup_one_len+0x163/0x190 [ 43.348054] ? try_lookup_one_len+0x180/0x180 [ 43.352535] start_creating+0xc9/0x220 [ 43.356403] __debugfs_create_file+0x5e/0x480 [ 43.360881] bdi_register_va.part.0+0x24b/0x750 [ 43.365534] bdi_register+0x12a/0x140 [ 43.369314] ? bdi_register_va+0x80/0x80 [ 43.373362] ? vsnprintf+0x2cc/0x14f0 [ 43.377147] bdi_register_owner+0x59/0x100 [ 43.381413] __device_add_disk+0xd58/0x10c0 [ 43.385891] ? sprintf+0xc0/0x100 [ 43.389326] ? blk_alloc_devt+0x2d0/0x2d0 [ 43.393458] ? __raw_spin_lock_init+0x28/0x100 [ 43.398020] ? __lockdep_init_map+0x100/0x5a0 [ 43.402499] loop_add+0x628/0x8a0 [ 43.405940] loop_control_ioctl+0x16c/0x480 [ 43.410240] ? loop_lookup+0x1d0/0x1d0 [ 43.414110] ? __vfs_write+0xff/0x770 [ 43.417892] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 43.422801] ? common_file_perm+0x4e5/0x850 [ 43.427151] ? loop_lookup+0x1d0/0x1d0 [ 43.431029] do_vfs_ioctl+0xcdb/0x12e0 [ 43.434917] ? vfs_write+0x3d7/0x540 [ 43.439009] ? ioctl_preallocate+0x200/0x200 [ 43.443401] ? lock_downgrade+0x720/0x720 [ 43.447539] ? check_preemption_disabled+0x41/0x280 [ 43.452536] ? vfs_write+0x393/0x540 [ 43.456233] ? ksys_write+0x1c8/0x2a0 [ 43.460016] ksys_ioctl+0x9b/0xc0 [ 43.463450] __x64_sys_ioctl+0x6f/0xb0 [ 43.467320] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.471925] do_syscall_64+0xf9/0x620 [ 43.475715] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.480890] RIP: 0033:0x7fa6bb5cf079 [ 43.484586] 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 [ 43.503470] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 43.511159] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 43.518406] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.525654] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 43.532904] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 43.540156] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 43.605241] FAULT_INJECTION: forcing a failure. [ 43.605241] name failslab, interval 1, probability 0, space 0, times 0 [ 43.617355] CPU: 0 PID: 8324 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 43.625352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.634871] Call Trace: [ 43.637446] dump_stack+0x1fc/0x2ef [ 43.641074] should_fail.cold+0xa/0xf [ 43.644859] ? setup_fault_attr+0x200/0x200 [ 43.649164] ? lock_acquire+0x170/0x3c0 [ 43.653127] __should_failslab+0x115/0x180 [ 43.657359] should_failslab+0x5/0x10 [ 43.661142] kmem_cache_alloc+0x277/0x370 [ 43.665283] alloc_inode+0xab/0x180 [ 43.668888] new_inode+0x1d/0xf0 [ 43.672236] debugfs_get_inode+0x1a/0x130 [ 43.676364] debugfs_create_dir+0x73/0x440 [ 43.680591] bdi_register_va.part.0+0x1f7/0x750 [ 43.685250] bdi_register+0x12a/0x140 [ 43.689032] ? bdi_register_va+0x80/0x80 [ 43.693077] ? vsnprintf+0x2cc/0x14f0 [ 43.696872] bdi_register_owner+0x59/0x100 [ 43.701106] __device_add_disk+0xd58/0x10c0 [ 43.705417] ? sprintf+0xc0/0x100 [ 43.708853] ? blk_alloc_devt+0x2d0/0x2d0 [ 43.712985] ? __raw_spin_lock_init+0x28/0x100 [ 43.717556] ? __lockdep_init_map+0x100/0x5a0 [ 43.722087] loop_add+0x628/0x8a0 [ 43.725532] loop_control_ioctl+0x16c/0x480 [ 43.729845] ? loop_lookup+0x1d0/0x1d0 [ 43.733721] ? __vfs_write+0xff/0x770 [ 43.737507] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 43.742420] ? common_file_perm+0x4e5/0x850 [ 43.746986] ? loop_lookup+0x1d0/0x1d0 [ 43.750859] do_vfs_ioctl+0xcdb/0x12e0 [ 43.754728] ? vfs_write+0x3d7/0x540 [ 43.758425] ? ioctl_preallocate+0x200/0x200 [ 43.762829] ? lock_downgrade+0x720/0x720 [ 43.766979] ? check_preemption_disabled+0x41/0x280 [ 43.771982] ? vfs_write+0x393/0x540 [ 43.775772] ? ksys_write+0x1c8/0x2a0 [ 43.779578] ksys_ioctl+0x9b/0xc0 [ 43.783022] __x64_sys_ioctl+0x6f/0xb0 [ 43.786902] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.791475] do_syscall_64+0xf9/0x620 [ 43.795280] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.800449] RIP: 0033:0x7fa6bb5cf079 [ 43.804144] 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 [ 43.823035] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.830723] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 43.837971] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.845245] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 43.852495] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 43.859747] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 43.924678] FAULT_INJECTION: forcing a failure. [ 43.924678] name failslab, interval 1, probability 0, space 0, times 0 [ 43.936355] CPU: 1 PID: 8333 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 43.944330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.953664] Call Trace: [ 43.956239] dump_stack+0x1fc/0x2ef [ 43.959858] should_fail.cold+0xa/0xf [ 43.963645] ? setup_fault_attr+0x200/0x200 [ 43.967950] ? lock_acquire+0x170/0x3c0 [ 43.971906] __should_failslab+0x115/0x180 [ 43.976124] should_failslab+0x5/0x10 [ 43.979904] kmem_cache_alloc+0x277/0x370 [ 43.984033] alloc_inode+0xab/0x180 [ 43.987643] new_inode+0x1d/0xf0 [ 43.991001] debugfs_get_inode+0x1a/0x130 [ 43.995136] debugfs_create_dir+0x73/0x440 [ 43.999360] bdi_register_va.part.0+0x1f7/0x750 [ 44.004015] bdi_register+0x12a/0x140 [ 44.007819] ? bdi_register_va+0x80/0x80 [ 44.011870] ? vsnprintf+0x2cc/0x14f0 [ 44.015654] bdi_register_owner+0x59/0x100 [ 44.019961] __device_add_disk+0xd58/0x10c0 [ 44.024267] ? sprintf+0xc0/0x100 [ 44.027703] ? blk_alloc_devt+0x2d0/0x2d0 [ 44.031837] ? __raw_spin_lock_init+0x28/0x100 [ 44.036408] ? __lockdep_init_map+0x100/0x5a0 [ 44.040892] loop_add+0x628/0x8a0 [ 44.044338] loop_control_ioctl+0x16c/0x480 [ 44.048647] ? loop_lookup+0x1d0/0x1d0 [ 44.052521] ? __vfs_write+0xff/0x770 [ 44.056302] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 44.061215] ? common_file_perm+0x4e5/0x850 [ 44.065520] ? loop_lookup+0x1d0/0x1d0 [ 44.069396] do_vfs_ioctl+0xcdb/0x12e0 [ 44.073268] ? vfs_write+0x3d7/0x540 [ 44.077025] ? ioctl_preallocate+0x200/0x200 [ 44.081438] ? lock_downgrade+0x720/0x720 [ 44.085578] ? check_preemption_disabled+0x41/0x280 [ 44.090585] ? vfs_write+0x393/0x540 [ 44.094315] ? ksys_write+0x1c8/0x2a0 [ 44.098101] ksys_ioctl+0x9b/0xc0 [ 44.101560] __x64_sys_ioctl+0x6f/0xb0 [ 44.105437] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.110003] do_syscall_64+0xf9/0x620 [ 44.113792] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.118962] RIP: 0033:0x7fa6bb5cf079 [ 44.122659] 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 [ 44.141555] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.149360] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 44.156612] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.163864] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 44.171115] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 44.178365] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 44.224704] FAULT_INJECTION: forcing a failure. [ 44.224704] name failslab, interval 1, probability 0, space 0, times 0 [ 44.236665] CPU: 1 PID: 8342 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 44.244540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.253881] Call Trace: [ 44.256502] dump_stack+0x1fc/0x2ef [ 44.260134] should_fail.cold+0xa/0xf [ 44.263920] ? setup_fault_attr+0x200/0x200 [ 44.268247] ? lock_acquire+0x170/0x3c0 [ 44.272217] __should_failslab+0x115/0x180 [ 44.276445] should_failslab+0x5/0x10 [ 44.280230] kmem_cache_alloc+0x277/0x370 [ 44.284364] alloc_inode+0xab/0x180 [ 44.287971] new_inode+0x1d/0xf0 [ 44.291332] debugfs_get_inode+0x1a/0x130 [ 44.295497] debugfs_create_dir+0x73/0x440 [ 44.299728] bdi_register_va.part.0+0x1f7/0x750 [ 44.304387] bdi_register+0x12a/0x140 [ 44.308197] ? bdi_register_va+0x80/0x80 [ 44.312255] ? vsnprintf+0x2cc/0x14f0 [ 44.316049] bdi_register_owner+0x59/0x100 [ 44.320272] __device_add_disk+0xd58/0x10c0 [ 44.324583] ? sprintf+0xc0/0x100 [ 44.328016] ? blk_alloc_devt+0x2d0/0x2d0 [ 44.332161] ? __raw_spin_lock_init+0x28/0x100 [ 44.336822] ? __lockdep_init_map+0x100/0x5a0 [ 44.341402] loop_add+0x628/0x8a0 [ 44.344846] loop_control_ioctl+0x16c/0x480 [ 44.349152] ? loop_lookup+0x1d0/0x1d0 [ 44.353035] ? __vfs_write+0xff/0x770 [ 44.356822] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 44.361747] ? common_file_perm+0x4e5/0x850 [ 44.366071] ? loop_lookup+0x1d0/0x1d0 [ 44.370293] do_vfs_ioctl+0xcdb/0x12e0 [ 44.374162] ? vfs_write+0x3d7/0x540 [ 44.377861] ? ioctl_preallocate+0x200/0x200 [ 44.382251] ? lock_downgrade+0x720/0x720 [ 44.386382] ? check_preemption_disabled+0x41/0x280 [ 44.391381] ? vfs_write+0x393/0x540 [ 44.395078] ? ksys_write+0x1c8/0x2a0 [ 44.398872] ksys_ioctl+0x9b/0xc0 [ 44.402315] __x64_sys_ioctl+0x6f/0xb0 [ 44.406194] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.410756] do_syscall_64+0xf9/0x620 [ 44.414542] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.419719] RIP: 0033:0x7fa6bb5cf079 [ 44.423417] 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 [ 44.442296] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.449997] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 44.457253] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.464505] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 44.471762] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 44.479023] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 44.535883] FAULT_INJECTION: forcing a failure. [ 44.535883] name failslab, interval 1, probability 0, space 0, times 0 [ 44.547681] CPU: 0 PID: 8351 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 44.555553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.564892] Call Trace: [ 44.567490] dump_stack+0x1fc/0x2ef [ 44.571124] should_fail.cold+0xa/0xf [ 44.574918] ? setup_fault_attr+0x200/0x200 [ 44.579229] ? lock_acquire+0x170/0x3c0 [ 44.583190] __should_failslab+0x115/0x180 [ 44.587419] should_failslab+0x5/0x10 [ 44.591204] kmem_cache_alloc+0x277/0x370 [ 44.595337] alloc_inode+0xab/0x180 [ 44.598944] new_inode+0x1d/0xf0 [ 44.602293] debugfs_get_inode+0x1a/0x130 [ 44.606424] debugfs_create_dir+0x73/0x440 [ 44.610640] bdi_register_va.part.0+0x1f7/0x750 [ 44.615289] bdi_register+0x12a/0x140 [ 44.619086] ? bdi_register_va+0x80/0x80 [ 44.623128] ? vsnprintf+0x2cc/0x14f0 [ 44.626909] bdi_register_owner+0x59/0x100 [ 44.631123] __device_add_disk+0xd58/0x10c0 [ 44.635425] ? sprintf+0xc0/0x100 [ 44.638856] ? blk_alloc_devt+0x2d0/0x2d0 [ 44.642984] ? __raw_spin_lock_init+0x28/0x100 [ 44.647554] ? __lockdep_init_map+0x100/0x5a0 [ 44.652031] loop_add+0x628/0x8a0 [ 44.655465] loop_control_ioctl+0x16c/0x480 [ 44.659778] ? loop_lookup+0x1d0/0x1d0 [ 44.663654] ? __vfs_write+0xff/0x770 [ 44.667442] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 44.672363] ? common_file_perm+0x4e5/0x850 [ 44.676671] ? loop_lookup+0x1d0/0x1d0 [ 44.680539] do_vfs_ioctl+0xcdb/0x12e0 [ 44.684412] ? vfs_write+0x3d7/0x540 [ 44.688107] ? ioctl_preallocate+0x200/0x200 [ 44.692496] ? lock_downgrade+0x720/0x720 [ 44.696626] ? check_preemption_disabled+0x41/0x280 [ 44.701625] ? vfs_write+0x393/0x540 [ 44.705318] ? ksys_write+0x1c8/0x2a0 [ 44.709131] ksys_ioctl+0x9b/0xc0 [ 44.712567] __x64_sys_ioctl+0x6f/0xb0 [ 44.716433] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.720996] do_syscall_64+0xf9/0x620 [ 44.724780] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.729950] RIP: 0033:0x7fa6bb5cf079 [ 44.733645] 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 [ 44.752525] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.760212] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 44.767458] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.774708] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 44.781956] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 44.789208] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 44.834371] FAULT_INJECTION: forcing a failure. [ 44.834371] name failslab, interval 1, probability 0, space 0, times 0 [ 44.846208] CPU: 0 PID: 8360 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 44.854082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.863419] Call Trace: [ 44.865991] dump_stack+0x1fc/0x2ef [ 44.869693] should_fail.cold+0xa/0xf [ 44.873480] ? setup_fault_attr+0x200/0x200 [ 44.877786] ? lock_acquire+0x170/0x3c0 [ 44.881744] __should_failslab+0x115/0x180 [ 44.885960] should_failslab+0x5/0x10 [ 44.889741] kmem_cache_alloc+0x277/0x370 [ 44.893877] alloc_inode+0xab/0x180 [ 44.897483] new_inode+0x1d/0xf0 [ 44.900829] debugfs_get_inode+0x1a/0x130 [ 44.904957] debugfs_create_dir+0x73/0x440 [ 44.909174] bdi_register_va.part.0+0x1f7/0x750 [ 44.913826] bdi_register+0x12a/0x140 [ 44.917614] ? bdi_register_va+0x80/0x80 [ 44.921659] ? vsnprintf+0x2cc/0x14f0 [ 44.925444] bdi_register_owner+0x59/0x100 [ 44.929661] __device_add_disk+0xd58/0x10c0 [ 44.933974] ? sprintf+0xc0/0x100 [ 44.937413] ? blk_alloc_devt+0x2d0/0x2d0 [ 44.941543] ? __raw_spin_lock_init+0x28/0x100 [ 44.946106] ? __lockdep_init_map+0x100/0x5a0 [ 44.950584] loop_add+0x628/0x8a0 [ 44.954018] loop_control_ioctl+0x16c/0x480 [ 44.958316] ? loop_lookup+0x1d0/0x1d0 [ 44.962188] ? __vfs_write+0xff/0x770 [ 44.965974] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 44.970884] ? common_file_perm+0x4e5/0x850 [ 44.975184] ? loop_lookup+0x1d0/0x1d0 [ 44.979049] do_vfs_ioctl+0xcdb/0x12e0 [ 44.982934] ? vfs_write+0x3d7/0x540 [ 44.986625] ? ioctl_preallocate+0x200/0x200 [ 44.991015] ? lock_downgrade+0x720/0x720 [ 44.995158] ? check_preemption_disabled+0x41/0x280 [ 45.000158] ? vfs_write+0x393/0x540 [ 45.003877] ? ksys_write+0x1c8/0x2a0 [ 45.007664] ksys_ioctl+0x9b/0xc0 [ 45.011098] __x64_sys_ioctl+0x6f/0xb0 [ 45.014965] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 45.019528] do_syscall_64+0xf9/0x620 [ 45.023311] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.028480] RIP: 0033:0x7fa6bb5cf079 [ 45.032187] 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 [ 45.051168] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.058860] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 45.066109] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.073358] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 45.080866] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 45.088134] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 45.146734] FAULT_INJECTION: forcing a failure. [ 45.146734] name failslab, interval 1, probability 0, space 0, times 0 [ 45.158199] CPU: 1 PID: 8369 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 45.166067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.175417] Call Trace: [ 45.177987] dump_stack+0x1fc/0x2ef [ 45.181600] should_fail.cold+0xa/0xf [ 45.185384] ? setup_fault_attr+0x200/0x200 [ 45.189711] ? lock_acquire+0x170/0x3c0 [ 45.193689] __should_failslab+0x115/0x180 [ 45.197905] should_failslab+0x5/0x10 [ 45.201691] kmem_cache_alloc+0x277/0x370 [ 45.205820] alloc_inode+0xab/0x180 [ 45.209424] new_inode+0x1d/0xf0 [ 45.212772] debugfs_get_inode+0x1a/0x130 [ 45.216898] debugfs_create_dir+0x73/0x440 [ 45.221112] bdi_register_va.part.0+0x1f7/0x750 [ 45.225761] bdi_register+0x12a/0x140 [ 45.229543] ? bdi_register_va+0x80/0x80 [ 45.233586] ? vsnprintf+0x2cc/0x14f0 [ 45.237368] bdi_register_owner+0x59/0x100 [ 45.241582] __device_add_disk+0xd58/0x10c0 [ 45.245884] ? sprintf+0xc0/0x100 [ 45.249318] ? blk_alloc_devt+0x2d0/0x2d0 [ 45.253447] ? __raw_spin_lock_init+0x28/0x100 [ 45.258011] ? __lockdep_init_map+0x100/0x5a0 [ 45.262489] loop_add+0x628/0x8a0 [ 45.265924] loop_control_ioctl+0x16c/0x480 [ 45.270224] ? loop_lookup+0x1d0/0x1d0 [ 45.274095] ? __vfs_write+0xff/0x770 [ 45.277878] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 45.282797] ? common_file_perm+0x4e5/0x850 [ 45.287101] ? loop_lookup+0x1d0/0x1d0 [ 45.290971] do_vfs_ioctl+0xcdb/0x12e0 [ 45.294843] ? vfs_write+0x3d7/0x540 [ 45.298536] ? ioctl_preallocate+0x200/0x200 [ 45.302924] ? lock_downgrade+0x720/0x720 [ 45.307055] ? check_preemption_disabled+0x41/0x280 [ 45.312058] ? vfs_write+0x393/0x540 [ 45.315756] ? ksys_write+0x1c8/0x2a0 [ 45.319537] ksys_ioctl+0x9b/0xc0 [ 45.322971] __x64_sys_ioctl+0x6f/0xb0 [ 45.326861] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 45.331422] do_syscall_64+0xf9/0x620 [ 45.335204] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.340374] RIP: 0033:0x7fa6bb5cf079 [ 45.344067] 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 [ 45.362947] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.370723] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 45.377973] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.385226] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 45.392472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 45.399722] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 45.464151] FAULT_INJECTION: forcing a failure. [ 45.464151] name failslab, interval 1, probability 0, space 0, times 0 [ 45.475595] CPU: 0 PID: 8378 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 45.483466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.492805] Call Trace: [ 45.495386] dump_stack+0x1fc/0x2ef [ 45.499001] should_fail.cold+0xa/0xf [ 45.502858] ? setup_fault_attr+0x200/0x200 [ 45.507165] ? lock_acquire+0x170/0x3c0 [ 45.511125] __should_failslab+0x115/0x180 [ 45.515344] should_failslab+0x5/0x10 [ 45.519127] kmem_cache_alloc+0x277/0x370 [ 45.523260] alloc_inode+0xab/0x180 [ 45.526867] new_inode+0x1d/0xf0 [ 45.530212] debugfs_get_inode+0x1a/0x130 [ 45.534338] debugfs_create_dir+0x73/0x440 [ 45.538558] bdi_register_va.part.0+0x1f7/0x750 [ 45.543209] bdi_register+0x12a/0x140 [ 45.546993] ? bdi_register_va+0x80/0x80 [ 45.551041] ? vsnprintf+0x2cc/0x14f0 [ 45.554825] bdi_register_owner+0x59/0x100 [ 45.559044] __device_add_disk+0xd58/0x10c0 [ 45.563346] ? sprintf+0xc0/0x100 [ 45.566778] ? blk_alloc_devt+0x2d0/0x2d0 [ 45.570910] ? __raw_spin_lock_init+0x28/0x100 [ 45.575475] ? __lockdep_init_map+0x100/0x5a0 [ 45.579955] loop_add+0x628/0x8a0 [ 45.583395] loop_control_ioctl+0x16c/0x480 [ 45.587701] ? loop_lookup+0x1d0/0x1d0 [ 45.591568] ? __vfs_write+0xff/0x770 [ 45.595355] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 45.600266] ? common_file_perm+0x4e5/0x850 [ 45.604568] ? loop_lookup+0x1d0/0x1d0 [ 45.608434] do_vfs_ioctl+0xcdb/0x12e0 [ 45.612303] ? vfs_write+0x3d7/0x540 [ 45.616000] ? ioctl_preallocate+0x200/0x200 [ 45.620392] ? lock_downgrade+0x720/0x720 [ 45.624526] ? check_preemption_disabled+0x41/0x280 [ 45.629526] ? vfs_write+0x393/0x540 [ 45.633220] ? ksys_write+0x1c8/0x2a0 [ 45.637005] ksys_ioctl+0x9b/0xc0 [ 45.640440] __x64_sys_ioctl+0x6f/0xb0 [ 45.644311] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 45.648873] do_syscall_64+0xf9/0x620 [ 45.652657] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.657829] RIP: 0033:0x7fa6bb5cf079 [ 45.661528] 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 [ 45.680412] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.688100] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 45.695356] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.702610] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 45.709861] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 45.717107] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 45.764902] FAULT_INJECTION: forcing a failure. [ 45.764902] name failslab, interval 1, probability 0, space 0, times 0 [ 45.776601] CPU: 0 PID: 8387 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 45.784476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.793812] Call Trace: [ 45.796384] dump_stack+0x1fc/0x2ef [ 45.799999] should_fail.cold+0xa/0xf [ 45.803786] ? setup_fault_attr+0x200/0x200 [ 45.808092] ? lock_acquire+0x170/0x3c0 [ 45.812054] __should_failslab+0x115/0x180 [ 45.816273] should_failslab+0x5/0x10 [ 45.820062] kmem_cache_alloc+0x277/0x370 [ 45.824191] alloc_inode+0xab/0x180 [ 45.827805] new_inode+0x1d/0xf0 [ 45.831154] debugfs_get_inode+0x1a/0x130 [ 45.835281] debugfs_create_dir+0x73/0x440 [ 45.839498] bdi_register_va.part.0+0x1f7/0x750 [ 45.844150] bdi_register+0x12a/0x140 [ 45.847940] ? bdi_register_va+0x80/0x80 [ 45.852119] ? vsnprintf+0x2cc/0x14f0 [ 45.855909] bdi_register_owner+0x59/0x100 [ 45.860131] __device_add_disk+0xd58/0x10c0 [ 45.864443] ? sprintf+0xc0/0x100 [ 45.867879] ? blk_alloc_devt+0x2d0/0x2d0 [ 45.872013] ? __raw_spin_lock_init+0x28/0x100 [ 45.876582] ? __lockdep_init_map+0x100/0x5a0 [ 45.881063] loop_add+0x628/0x8a0 [ 45.884505] loop_control_ioctl+0x16c/0x480 [ 45.888814] ? loop_lookup+0x1d0/0x1d0 [ 45.892688] ? __vfs_write+0xff/0x770 [ 45.896471] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 45.901439] ? common_file_perm+0x4e5/0x850 [ 45.905742] ? loop_lookup+0x1d0/0x1d0 [ 45.909612] do_vfs_ioctl+0xcdb/0x12e0 [ 45.913481] ? vfs_write+0x3d7/0x540 [ 45.917175] ? ioctl_preallocate+0x200/0x200 [ 45.921609] ? lock_downgrade+0x720/0x720 [ 45.925742] ? check_preemption_disabled+0x41/0x280 [ 45.930788] ? vfs_write+0x393/0x540 [ 45.934484] ? ksys_write+0x1c8/0x2a0 [ 45.938307] ksys_ioctl+0x9b/0xc0 [ 45.941756] __x64_sys_ioctl+0x6f/0xb0 [ 45.945634] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 45.950198] do_syscall_64+0xf9/0x620 [ 45.953981] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.959149] RIP: 0033:0x7fa6bb5cf079 [ 45.962844] 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 [ 45.981732] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.989518] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 45.996786] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.004037] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 46.011286] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 46.018537] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 46.064430] FAULT_INJECTION: forcing a failure. [ 46.064430] name failslab, interval 1, probability 0, space 0, times 0 [ 46.078291] CPU: 0 PID: 8396 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 46.086180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.095568] Call Trace: [ 46.098149] dump_stack+0x1fc/0x2ef [ 46.101762] should_fail.cold+0xa/0xf [ 46.105556] ? setup_fault_attr+0x200/0x200 [ 46.109863] ? lock_acquire+0x170/0x3c0 [ 46.113826] __should_failslab+0x115/0x180 [ 46.118048] should_failslab+0x5/0x10 [ 46.121834] kmem_cache_alloc+0x277/0x370 [ 46.125995] alloc_inode+0xab/0x180 [ 46.129604] new_inode+0x1d/0xf0 [ 46.132965] debugfs_get_inode+0x1a/0x130 [ 46.137102] debugfs_create_dir+0x73/0x440 [ 46.141319] bdi_register_va.part.0+0x1f7/0x750 [ 46.145975] bdi_register+0x12a/0x140 [ 46.149764] ? bdi_register_va+0x80/0x80 [ 46.153810] ? vsnprintf+0x2cc/0x14f0 [ 46.157597] bdi_register_owner+0x59/0x100 [ 46.161821] __device_add_disk+0xd58/0x10c0 [ 46.166130] ? sprintf+0xc0/0x100 [ 46.169564] ? blk_alloc_devt+0x2d0/0x2d0 [ 46.173698] ? __raw_spin_lock_init+0x28/0x100 [ 46.178269] ? __lockdep_init_map+0x100/0x5a0 [ 46.182751] loop_add+0x628/0x8a0 [ 46.186189] loop_control_ioctl+0x16c/0x480 [ 46.190493] ? loop_lookup+0x1d0/0x1d0 [ 46.194385] ? __vfs_write+0xff/0x770 [ 46.198176] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 46.203093] ? common_file_perm+0x4e5/0x850 [ 46.207406] ? loop_lookup+0x1d0/0x1d0 [ 46.211279] do_vfs_ioctl+0xcdb/0x12e0 [ 46.215159] ? vfs_write+0x3d7/0x540 [ 46.218858] ? ioctl_preallocate+0x200/0x200 [ 46.223249] ? lock_downgrade+0x720/0x720 [ 46.227391] ? check_preemption_disabled+0x41/0x280 [ 46.232397] ? vfs_write+0x393/0x540 [ 46.236112] ? ksys_write+0x1c8/0x2a0 [ 46.239907] ksys_ioctl+0x9b/0xc0 [ 46.243355] __x64_sys_ioctl+0x6f/0xb0 [ 46.247227] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 46.251792] do_syscall_64+0xf9/0x620 [ 46.255579] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.260749] RIP: 0033:0x7fa6bb5cf079 [ 46.264447] 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 [ 46.283443] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.291134] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 46.298384] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.305632] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 46.312880] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 46.320131] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 46.394880] FAULT_INJECTION: forcing a failure. [ 46.394880] name failslab, interval 1, probability 0, space 0, times 0 [ 46.406632] CPU: 0 PID: 8406 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 46.414525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.423863] Call Trace: [ 46.426438] dump_stack+0x1fc/0x2ef [ 46.430050] should_fail.cold+0xa/0xf [ 46.433838] ? setup_fault_attr+0x200/0x200 [ 46.438153] ? lock_acquire+0x170/0x3c0 [ 46.442112] __should_failslab+0x115/0x180 [ 46.446331] should_failslab+0x5/0x10 [ 46.450113] kmem_cache_alloc+0x277/0x370 [ 46.454257] alloc_inode+0xab/0x180 [ 46.457872] new_inode+0x1d/0xf0 [ 46.461220] debugfs_get_inode+0x1a/0x130 [ 46.465352] debugfs_create_dir+0x73/0x440 [ 46.469580] bdi_register_va.part.0+0x1f7/0x750 [ 46.474240] bdi_register+0x12a/0x140 [ 46.478075] ? bdi_register_va+0x80/0x80 [ 46.482132] ? vsnprintf+0x2cc/0x14f0 [ 46.485917] bdi_register_owner+0x59/0x100 [ 46.490145] __device_add_disk+0xd58/0x10c0 [ 46.494450] ? sprintf+0xc0/0x100 [ 46.497886] ? blk_alloc_devt+0x2d0/0x2d0 [ 46.502020] ? __raw_spin_lock_init+0x28/0x100 [ 46.506587] ? __lockdep_init_map+0x100/0x5a0 [ 46.511108] loop_add+0x628/0x8a0 [ 46.514552] loop_control_ioctl+0x16c/0x480 [ 46.518858] ? loop_lookup+0x1d0/0x1d0 [ 46.522740] ? __vfs_write+0xff/0x770 [ 46.526524] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 46.531446] ? common_file_perm+0x4e5/0x850 [ 46.535754] ? loop_lookup+0x1d0/0x1d0 [ 46.539634] do_vfs_ioctl+0xcdb/0x12e0 [ 46.543510] ? vfs_write+0x3d7/0x540 [ 46.547205] ? ioctl_preallocate+0x200/0x200 [ 46.551599] ? lock_downgrade+0x720/0x720 [ 46.555735] ? check_preemption_disabled+0x41/0x280 [ 46.560736] ? vfs_write+0x393/0x540 [ 46.564433] ? ksys_write+0x1c8/0x2a0 [ 46.568222] ksys_ioctl+0x9b/0xc0 [ 46.571659] __x64_sys_ioctl+0x6f/0xb0 [ 46.575530] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 46.580100] do_syscall_64+0xf9/0x620 [ 46.583888] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.589094] RIP: 0033:0x7fa6bb5cf079 [ 46.592790] 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 [ 46.611672] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.619361] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 46.626618] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.633878] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 46.641130] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 46.648404] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 46.713807] FAULT_INJECTION: forcing a failure. [ 46.713807] name failslab, interval 1, probability 0, space 0, times 0 [ 46.725438] CPU: 0 PID: 8417 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 46.733326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.742666] Call Trace: [ 46.745243] dump_stack+0x1fc/0x2ef [ 46.748941] should_fail.cold+0xa/0xf [ 46.752729] ? setup_fault_attr+0x200/0x200 [ 46.757031] ? lock_acquire+0x170/0x3c0 [ 46.760995] __should_failslab+0x115/0x180 [ 46.765225] should_failslab+0x5/0x10 [ 46.769014] kmem_cache_alloc+0x277/0x370 [ 46.773148] alloc_inode+0xab/0x180 [ 46.776756] new_inode+0x1d/0xf0 [ 46.780106] debugfs_get_inode+0x1a/0x130 [ 46.784285] debugfs_create_dir+0x73/0x440 [ 46.788505] bdi_register_va.part.0+0x1f7/0x750 [ 46.793160] bdi_register+0x12a/0x140 [ 46.796945] ? bdi_register_va+0x80/0x80 [ 46.800994] ? vsnprintf+0x2cc/0x14f0 [ 46.804782] bdi_register_owner+0x59/0x100 [ 46.809000] __device_add_disk+0xd58/0x10c0 [ 46.813308] ? sprintf+0xc0/0x100 [ 46.816740] ? blk_alloc_devt+0x2d0/0x2d0 [ 46.820871] ? __raw_spin_lock_init+0x28/0x100 [ 46.825439] ? __lockdep_init_map+0x100/0x5a0 [ 46.829917] loop_add+0x628/0x8a0 [ 46.833352] loop_control_ioctl+0x16c/0x480 [ 46.837696] ? loop_lookup+0x1d0/0x1d0 [ 46.841567] ? __vfs_write+0xff/0x770 [ 46.845348] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 46.850257] ? common_file_perm+0x4e5/0x850 [ 46.854560] ? loop_lookup+0x1d0/0x1d0 [ 46.858429] do_vfs_ioctl+0xcdb/0x12e0 [ 46.862298] ? vfs_write+0x3d7/0x540 [ 46.865991] ? ioctl_preallocate+0x200/0x200 [ 46.870381] ? lock_downgrade+0x720/0x720 [ 46.874523] ? check_preemption_disabled+0x41/0x280 [ 46.879524] ? vfs_write+0x393/0x540 [ 46.883226] ? ksys_write+0x1c8/0x2a0 [ 46.887019] ksys_ioctl+0x9b/0xc0 [ 46.890456] __x64_sys_ioctl+0x6f/0xb0 [ 46.894370] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 46.898933] do_syscall_64+0xf9/0x620 [ 46.902717] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.907887] RIP: 0033:0x7fa6bb5cf079 [ 46.911580] 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 [ 46.930937] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.938668] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 46.945922] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.953177] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 46.960441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 46.967699] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 47.033954] FAULT_INJECTION: forcing a failure. [ 47.033954] name failslab, interval 1, probability 0, space 0, times 0 [ 47.045622] CPU: 0 PID: 8426 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 47.053505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.062837] Call Trace: [ 47.065411] dump_stack+0x1fc/0x2ef [ 47.069026] should_fail.cold+0xa/0xf [ 47.072811] ? setup_fault_attr+0x200/0x200 [ 47.077114] ? lock_acquire+0x170/0x3c0 [ 47.081073] __should_failslab+0x115/0x180 [ 47.085292] should_failslab+0x5/0x10 [ 47.089075] kmem_cache_alloc+0x277/0x370 [ 47.093209] __d_alloc+0x2b/0xa10 [ 47.096646] d_alloc+0x4a/0x230 [ 47.099925] d_alloc_parallel+0xeb/0x19e0 [ 47.104071] ? mark_held_locks+0xf0/0xf0 [ 47.108122] ? __d_lookup_rcu+0x6b0/0x6b0 [ 47.112254] ? device_add+0xbf8/0x16d0 [ 47.116124] ? mark_held_locks+0xf0/0xf0 [ 47.120167] ? __lockdep_init_map+0x100/0x5a0 [ 47.124650] ? __lockdep_init_map+0x100/0x5a0 [ 47.129130] __lookup_slow+0x18d/0x4a0 [ 47.133001] ? check_preemption_disabled+0x41/0x280 [ 47.138003] ? follow_dotdot_rcu+0x1040/0x1040 [ 47.142572] ? __d_lookup+0x411/0x710 [ 47.146373] ? d_lookup+0x18e/0x250 [ 47.149988] lookup_one_len+0x163/0x190 [ 47.153959] ? try_lookup_one_len+0x180/0x180 [ 47.158448] start_creating+0xc9/0x220 [ 47.162341] debugfs_create_dir+0x1f/0x440 [ 47.166581] bdi_register_va.part.0+0x1f7/0x750 [ 47.171241] bdi_register+0x12a/0x140 [ 47.175048] ? bdi_register_va+0x80/0x80 [ 47.179094] ? vsnprintf+0x2cc/0x14f0 [ 47.182882] bdi_register_owner+0x59/0x100 [ 47.187105] __device_add_disk+0xd58/0x10c0 [ 47.191422] ? sprintf+0xc0/0x100 [ 47.194858] ? blk_alloc_devt+0x2d0/0x2d0 [ 47.198988] ? __raw_spin_lock_init+0x28/0x100 [ 47.203554] ? __lockdep_init_map+0x100/0x5a0 [ 47.209166] loop_add+0x628/0x8a0 [ 47.212603] loop_control_ioctl+0x16c/0x480 [ 47.216908] ? loop_lookup+0x1d0/0x1d0 [ 47.220779] ? __vfs_write+0xff/0x770 [ 47.224569] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 47.229480] ? common_file_perm+0x4e5/0x850 [ 47.233784] ? loop_lookup+0x1d0/0x1d0 [ 47.237651] do_vfs_ioctl+0xcdb/0x12e0 [ 47.241523] ? vfs_write+0x3d7/0x540 [ 47.245218] ? ioctl_preallocate+0x200/0x200 [ 47.249609] ? lock_downgrade+0x720/0x720 [ 47.253746] ? check_preemption_disabled+0x41/0x280 [ 47.258745] ? vfs_write+0x393/0x540 [ 47.262449] ? ksys_write+0x1c8/0x2a0 [ 47.266306] ksys_ioctl+0x9b/0xc0 [ 47.269751] __x64_sys_ioctl+0x6f/0xb0 [ 47.273624] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 47.278191] do_syscall_64+0xf9/0x620 [ 47.281979] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.287149] RIP: 0033:0x7fa6bb5cf079 [ 47.290845] 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 [ 47.309730] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.317420] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 47.324671] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 47.331946] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 47.339209] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 47.346465] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 47.414972] FAULT_INJECTION: forcing a failure. [ 47.414972] name failslab, interval 1, probability 0, space 0, times 0 [ 47.426252] CPU: 0 PID: 8435 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 47.434119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.443627] Call Trace: [ 47.446203] dump_stack+0x1fc/0x2ef [ 47.449818] should_fail.cold+0xa/0xf [ 47.453604] ? setup_fault_attr+0x200/0x200 [ 47.457909] ? lock_acquire+0x170/0x3c0 [ 47.461869] __should_failslab+0x115/0x180 [ 47.466088] should_failslab+0x5/0x10 [ 47.469871] kmem_cache_alloc+0x277/0x370 [ 47.474009] __d_alloc+0x2b/0xa10 [ 47.477460] d_alloc+0x4a/0x230 [ 47.480727] d_alloc_parallel+0xeb/0x19e0 [ 47.484863] ? mark_held_locks+0xf0/0xf0 [ 47.488909] ? __d_lookup_rcu+0x6b0/0x6b0 [ 47.493043] ? device_add+0xbf8/0x16d0 [ 47.496933] ? mark_held_locks+0xf0/0xf0 [ 47.501089] ? __lockdep_init_map+0x100/0x5a0 [ 47.505577] ? __lockdep_init_map+0x100/0x5a0 [ 47.510058] __lookup_slow+0x18d/0x4a0 [ 47.513933] ? check_preemption_disabled+0x41/0x280 [ 47.518937] ? follow_dotdot_rcu+0x1040/0x1040 [ 47.523512] ? __d_lookup+0x411/0x710 [ 47.527389] ? d_lookup+0x18e/0x250 [ 47.531001] lookup_one_len+0x163/0x190 [ 47.534963] ? try_lookup_one_len+0x180/0x180 [ 47.539441] start_creating+0xc9/0x220 [ 47.543310] debugfs_create_dir+0x1f/0x440 [ 47.547551] bdi_register_va.part.0+0x1f7/0x750 [ 47.552202] bdi_register+0x12a/0x140 [ 47.555985] ? bdi_register_va+0x80/0x80 [ 47.560030] ? vsnprintf+0x2cc/0x14f0 [ 47.563813] bdi_register_owner+0x59/0x100 [ 47.568030] __device_add_disk+0xd58/0x10c0 [ 47.572336] ? sprintf+0xc0/0x100 [ 47.575775] ? blk_alloc_devt+0x2d0/0x2d0 [ 47.579909] ? __raw_spin_lock_init+0x28/0x100 [ 47.584470] ? __lockdep_init_map+0x100/0x5a0 [ 47.588954] loop_add+0x628/0x8a0 [ 47.592389] loop_control_ioctl+0x16c/0x480 [ 47.596688] ? loop_lookup+0x1d0/0x1d0 [ 47.600563] ? __vfs_write+0xff/0x770 [ 47.604346] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 47.609428] ? common_file_perm+0x4e5/0x850 [ 47.613818] ? loop_lookup+0x1d0/0x1d0 [ 47.617685] do_vfs_ioctl+0xcdb/0x12e0 [ 47.621551] ? vfs_write+0x3d7/0x540 [ 47.625245] ? ioctl_preallocate+0x200/0x200 [ 47.629636] ? lock_downgrade+0x720/0x720 [ 47.633767] ? check_preemption_disabled+0x41/0x280 [ 47.638763] ? vfs_write+0x393/0x540 [ 47.642456] ? ksys_write+0x1c8/0x2a0 [ 47.646238] ksys_ioctl+0x9b/0xc0 [ 47.649672] __x64_sys_ioctl+0x6f/0xb0 [ 47.653538] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 47.658099] do_syscall_64+0xf9/0x620 [ 47.661883] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.667052] RIP: 0033:0x7fa6bb5cf079 [ 47.670750] 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 [ 47.689630] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.697319] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 47.704574] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 47.711823] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 47.719074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 47.726323] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 47.783318] FAULT_INJECTION: forcing a failure. [ 47.783318] name failslab, interval 1, probability 0, space 0, times 0 [ 47.794810] CPU: 1 PID: 8443 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 47.802676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.812009] Call Trace: [ 47.814582] dump_stack+0x1fc/0x2ef [ 47.818194] should_fail.cold+0xa/0xf [ 47.821976] ? setup_fault_attr+0x200/0x200 [ 47.826281] ? lock_acquire+0x170/0x3c0 [ 47.830240] __should_failslab+0x115/0x180 [ 47.834459] should_failslab+0x5/0x10 [ 47.838241] kmem_cache_alloc+0x277/0x370 [ 47.842372] alloc_inode+0xab/0x180 [ 47.846004] new_inode+0x1d/0xf0 [ 47.849350] debugfs_get_inode+0x1a/0x130 [ 47.853478] debugfs_create_dir+0x73/0x440 [ 47.857695] bdi_register_va.part.0+0x1f7/0x750 [ 47.862343] bdi_register+0x12a/0x140 [ 47.866159] ? bdi_register_va+0x80/0x80 [ 47.870202] ? vsnprintf+0x2cc/0x14f0 [ 47.873985] bdi_register_owner+0x59/0x100 [ 47.878200] __device_add_disk+0xd58/0x10c0 [ 47.882504] ? sprintf+0xc0/0x100 [ 47.885933] ? blk_alloc_devt+0x2d0/0x2d0 [ 47.890071] ? __raw_spin_lock_init+0x28/0x100 [ 47.894636] ? __lockdep_init_map+0x100/0x5a0 [ 47.899110] loop_add+0x628/0x8a0 [ 47.902579] loop_control_ioctl+0x16c/0x480 [ 47.906881] ? loop_lookup+0x1d0/0x1d0 [ 47.910765] ? __vfs_write+0xff/0x770 [ 47.914550] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 47.919460] ? common_file_perm+0x4e5/0x850 [ 47.923859] ? loop_lookup+0x1d0/0x1d0 [ 47.927730] do_vfs_ioctl+0xcdb/0x12e0 [ 47.931601] ? vfs_write+0x3d7/0x540 [ 47.935297] ? ioctl_preallocate+0x200/0x200 [ 47.939691] ? lock_downgrade+0x720/0x720 [ 47.943835] ? check_preemption_disabled+0x41/0x280 [ 47.948834] ? vfs_write+0x393/0x540 [ 47.952529] ? ksys_write+0x1c8/0x2a0 [ 47.956316] ksys_ioctl+0x9b/0xc0 [ 47.959751] __x64_sys_ioctl+0x6f/0xb0 [ 47.963634] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 47.968196] do_syscall_64+0xf9/0x620 [ 47.971981] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.977148] RIP: 0033:0x7fa6bb5cf079 [ 47.980855] 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 [ 47.999747] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.007434] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 48.014683] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.021932] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 48.029177] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 48.036425] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 48.113375] FAULT_INJECTION: forcing a failure. [ 48.113375] name failslab, interval 1, probability 0, space 0, times 0 [ 48.124629] CPU: 1 PID: 8452 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 48.132496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.141832] Call Trace: [ 48.144403] dump_stack+0x1fc/0x2ef [ 48.148012] should_fail.cold+0xa/0xf [ 48.151804] ? setup_fault_attr+0x200/0x200 [ 48.156110] ? lock_acquire+0x170/0x3c0 [ 48.160067] __should_failslab+0x115/0x180 [ 48.164285] should_failslab+0x5/0x10 [ 48.168067] kmem_cache_alloc+0x277/0x370 [ 48.172201] __d_alloc+0x2b/0xa10 [ 48.176160] d_alloc+0x4a/0x230 [ 48.179551] d_alloc_parallel+0xeb/0x19e0 [ 48.183686] ? mark_held_locks+0xf0/0xf0 [ 48.187729] ? __d_lookup_rcu+0x6b0/0x6b0 [ 48.191880] ? device_add+0xbf8/0x16d0 [ 48.195749] ? mark_held_locks+0xf0/0xf0 [ 48.199793] ? __lockdep_init_map+0x100/0x5a0 [ 48.204280] ? __lockdep_init_map+0x100/0x5a0 [ 48.208761] __lookup_slow+0x18d/0x4a0 [ 48.212635] ? check_preemption_disabled+0x41/0x280 [ 48.217633] ? follow_dotdot_rcu+0x1040/0x1040 [ 48.222200] ? __d_lookup+0x411/0x710 [ 48.225986] ? d_lookup+0x18e/0x250 [ 48.229599] lookup_one_len+0x163/0x190 [ 48.233557] ? try_lookup_one_len+0x180/0x180 [ 48.238034] start_creating+0xc9/0x220 [ 48.241905] debugfs_create_dir+0x1f/0x440 [ 48.246226] bdi_register_va.part.0+0x1f7/0x750 [ 48.250893] bdi_register+0x12a/0x140 [ 48.254689] ? bdi_register_va+0x80/0x80 [ 48.258751] ? vsnprintf+0x2cc/0x14f0 [ 48.262552] bdi_register_owner+0x59/0x100 [ 48.266775] __device_add_disk+0xd58/0x10c0 [ 48.271099] ? sprintf+0xc0/0x100 [ 48.274543] ? blk_alloc_devt+0x2d0/0x2d0 [ 48.278684] ? __raw_spin_lock_init+0x28/0x100 [ 48.283249] ? __lockdep_init_map+0x100/0x5a0 [ 48.287735] loop_add+0x628/0x8a0 [ 48.291172] loop_control_ioctl+0x16c/0x480 [ 48.295475] ? loop_lookup+0x1d0/0x1d0 [ 48.299346] ? __vfs_write+0xff/0x770 [ 48.303130] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 48.308131] ? common_file_perm+0x4e5/0x850 [ 48.312434] ? loop_lookup+0x1d0/0x1d0 [ 48.316303] do_vfs_ioctl+0xcdb/0x12e0 [ 48.320179] ? vfs_write+0x3d7/0x540 [ 48.323873] ? ioctl_preallocate+0x200/0x200 [ 48.328262] ? lock_downgrade+0x720/0x720 [ 48.332402] ? check_preemption_disabled+0x41/0x280 [ 48.337479] ? vfs_write+0x393/0x540 [ 48.341187] ? ksys_write+0x1c8/0x2a0 [ 48.344974] ksys_ioctl+0x9b/0xc0 [ 48.348410] __x64_sys_ioctl+0x6f/0xb0 [ 48.352295] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 48.356874] do_syscall_64+0xf9/0x620 [ 48.360659] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.365825] RIP: 0033:0x7fa6bb5cf079 [ 48.369520] 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 [ 48.388527] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.396217] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 48.403467] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 48.410719] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 48.417969] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 48.425220] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 48.483894] FAULT_INJECTION: forcing a failure. [ 48.483894] name failslab, interval 1, probability 0, space 0, times 0 [ 48.495523] CPU: 0 PID: 8461 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 48.503585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.513010] Call Trace: [ 48.515600] dump_stack+0x1fc/0x2ef [ 48.519216] should_fail.cold+0xa/0xf [ 48.522997] ? setup_fault_attr+0x200/0x200 [ 48.527300] ? lock_acquire+0x170/0x3c0 [ 48.531258] __should_failslab+0x115/0x180 [ 48.535474] should_failslab+0x5/0x10 [ 48.539258] kmem_cache_alloc+0x277/0x370 [ 48.543387] alloc_inode+0xab/0x180 [ 48.546994] new_inode+0x1d/0xf0 [ 48.550341] debugfs_get_inode+0x1a/0x130 [ 48.554466] debugfs_create_dir+0x73/0x440 [ 48.558686] bdi_register_va.part.0+0x1f7/0x750 [ 48.563335] bdi_register+0x12a/0x140 [ 48.567113] ? bdi_register_va+0x80/0x80 [ 48.571154] ? vsnprintf+0x2cc/0x14f0 [ 48.574938] bdi_register_owner+0x59/0x100 [ 48.579154] __device_add_disk+0xd58/0x10c0 [ 48.583455] ? sprintf+0xc0/0x100 [ 48.586885] ? blk_alloc_devt+0x2d0/0x2d0 [ 48.591020] ? __raw_spin_lock_init+0x28/0x100 [ 48.595581] ? __lockdep_init_map+0x100/0x5a0 [ 48.600060] loop_add+0x628/0x8a0 [ 48.603496] loop_control_ioctl+0x16c/0x480 [ 48.607799] ? loop_lookup+0x1d0/0x1d0 [ 48.611668] ? __vfs_write+0xff/0x770 [ 48.615447] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 48.620355] ? common_file_perm+0x4e5/0x850 [ 48.624655] ? loop_lookup+0x1d0/0x1d0 [ 48.628522] do_vfs_ioctl+0xcdb/0x12e0 [ 48.632392] ? vfs_write+0x3d7/0x540 [ 48.636103] ? ioctl_preallocate+0x200/0x200 [ 48.640493] ? lock_downgrade+0x720/0x720 [ 48.644626] ? check_preemption_disabled+0x41/0x280 [ 48.649620] ? vfs_write+0x393/0x540 [ 48.653313] ? ksys_write+0x1c8/0x2a0 [ 48.657098] ksys_ioctl+0x9b/0xc0 [ 48.660626] __x64_sys_ioctl+0x6f/0xb0 [ 48.664496] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 48.669055] do_syscall_64+0xf9/0x620 [ 48.672840] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.678010] RIP: 0033:0x7fa6bb5cf079 [ 48.681703] 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 [ 48.700596] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.708303] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 48.715554] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.722803] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 48.730057] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 48.737311] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 48.792940] FAULT_INJECTION: forcing a failure. [ 48.792940] name failslab, interval 1, probability 0, space 0, times 0 [ 48.804439] CPU: 1 PID: 8471 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 48.812305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.821636] Call Trace: [ 48.824205] dump_stack+0x1fc/0x2ef [ 48.827816] should_fail.cold+0xa/0xf [ 48.831693] ? setup_fault_attr+0x200/0x200 [ 48.835993] ? lock_acquire+0x170/0x3c0 [ 48.839960] __should_failslab+0x115/0x180 [ 48.844179] should_failslab+0x5/0x10 [ 48.847960] kmem_cache_alloc+0x277/0x370 [ 48.852088] __d_alloc+0x2b/0xa10 [ 48.855525] d_alloc+0x4a/0x230 [ 48.858784] d_alloc_parallel+0xeb/0x19e0 [ 48.862917] ? mark_held_locks+0xf0/0xf0 [ 48.866958] ? __d_lookup_rcu+0x6b0/0x6b0 [ 48.871085] ? device_add+0xbf8/0x16d0 [ 48.874952] ? mark_held_locks+0xf0/0xf0 [ 48.878995] ? __lockdep_init_map+0x100/0x5a0 [ 48.883470] ? __lockdep_init_map+0x100/0x5a0 [ 48.887946] __lookup_slow+0x18d/0x4a0 [ 48.891816] ? check_preemption_disabled+0x41/0x280 [ 48.896814] ? follow_dotdot_rcu+0x1040/0x1040 [ 48.901380] ? __d_lookup+0x411/0x710 [ 48.905167] ? d_lookup+0x18e/0x250 [ 48.908779] lookup_one_len+0x163/0x190 [ 48.912734] ? try_lookup_one_len+0x180/0x180 [ 48.917214] start_creating+0xc9/0x220 [ 48.921089] debugfs_create_dir+0x1f/0x440 [ 48.925306] bdi_register_va.part.0+0x1f7/0x750 [ 48.930091] bdi_register+0x12a/0x140 [ 48.933928] ? bdi_register_va+0x80/0x80 [ 48.937983] ? vsnprintf+0x2cc/0x14f0 [ 48.941774] bdi_register_owner+0x59/0x100 [ 48.946003] __device_add_disk+0xd58/0x10c0 [ 48.950364] ? sprintf+0xc0/0x100 [ 48.953813] ? blk_alloc_devt+0x2d0/0x2d0 [ 48.957945] ? __raw_spin_lock_init+0x28/0x100 [ 48.962508] ? __lockdep_init_map+0x100/0x5a0 [ 48.966987] loop_add+0x628/0x8a0 [ 48.970424] loop_control_ioctl+0x16c/0x480 [ 48.974728] ? loop_lookup+0x1d0/0x1d0 [ 48.978597] ? __vfs_write+0xff/0x770 [ 48.982379] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 48.987308] ? common_file_perm+0x4e5/0x850 [ 48.991610] ? loop_lookup+0x1d0/0x1d0 [ 48.995482] do_vfs_ioctl+0xcdb/0x12e0 [ 48.999349] ? vfs_write+0x3d7/0x540 [ 49.003044] ? ioctl_preallocate+0x200/0x200 [ 49.007438] ? lock_downgrade+0x720/0x720 [ 49.011578] ? check_preemption_disabled+0x41/0x280 [ 49.016584] ? vfs_write+0x393/0x540 [ 49.020288] ? ksys_write+0x1c8/0x2a0 [ 49.024517] ksys_ioctl+0x9b/0xc0 [ 49.027967] __x64_sys_ioctl+0x6f/0xb0 [ 49.031841] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 49.036404] do_syscall_64+0xf9/0x620 [ 49.040188] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.045358] RIP: 0033:0x7fa6bb5cf079 [ 49.049053] 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 [ 49.067935] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.075628] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 49.082880] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 49.090131] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 49.097474] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 49.104728] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 49.152522] FAULT_INJECTION: forcing a failure. [ 49.152522] name failslab, interval 1, probability 0, space 0, times 0 [ 49.164000] CPU: 1 PID: 8480 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 49.171871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.181210] Call Trace: [ 49.183809] dump_stack+0x1fc/0x2ef [ 49.187427] should_fail.cold+0xa/0xf [ 49.191225] ? setup_fault_attr+0x200/0x200 [ 49.195532] ? lock_acquire+0x170/0x3c0 [ 49.199496] __should_failslab+0x115/0x180 [ 49.203730] should_failslab+0x5/0x10 [ 49.207523] kmem_cache_alloc+0x277/0x370 [ 49.211669] alloc_inode+0xab/0x180 [ 49.215284] new_inode+0x1d/0xf0 [ 49.218636] debugfs_get_inode+0x1a/0x130 [ 49.222766] debugfs_create_dir+0x73/0x440 [ 49.227120] bdi_register_va.part.0+0x1f7/0x750 [ 49.231781] bdi_register+0x12a/0x140 [ 49.235568] ? bdi_register_va+0x80/0x80 [ 49.239615] ? vsnprintf+0x2cc/0x14f0 [ 49.243405] bdi_register_owner+0x59/0x100 [ 49.247625] __device_add_disk+0xd58/0x10c0 [ 49.251932] ? sprintf+0xc0/0x100 [ 49.255366] ? blk_alloc_devt+0x2d0/0x2d0 [ 49.259670] ? __raw_spin_lock_init+0x28/0x100 [ 49.264247] ? __lockdep_init_map+0x100/0x5a0 [ 49.268723] loop_add+0x628/0x8a0 [ 49.272180] loop_control_ioctl+0x16c/0x480 [ 49.276511] ? loop_lookup+0x1d0/0x1d0 [ 49.280392] ? __vfs_write+0xff/0x770 [ 49.284182] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 49.289101] ? common_file_perm+0x4e5/0x850 [ 49.293406] ? loop_lookup+0x1d0/0x1d0 [ 49.297288] do_vfs_ioctl+0xcdb/0x12e0 [ 49.301167] ? vfs_write+0x3d7/0x540 [ 49.304861] ? ioctl_preallocate+0x200/0x200 [ 49.309255] ? lock_downgrade+0x720/0x720 [ 49.313389] ? check_preemption_disabled+0x41/0x280 [ 49.318386] ? vfs_write+0x393/0x540 [ 49.322080] ? ksys_write+0x1c8/0x2a0 [ 49.325865] ksys_ioctl+0x9b/0xc0 [ 49.329304] __x64_sys_ioctl+0x6f/0xb0 [ 49.333171] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 49.337734] do_syscall_64+0xf9/0x620 [ 49.341518] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.346692] RIP: 0033:0x7fa6bb5cf079 [ 49.350429] 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 [ 49.369310] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.377011] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 49.384354] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.391606] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 49.398856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 49.406108] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 49.455292] FAULT_INJECTION: forcing a failure. [ 49.455292] name failslab, interval 1, probability 0, space 0, times 0 [ 49.466579] CPU: 1 PID: 8488 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 49.474450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.483783] Call Trace: [ 49.486361] dump_stack+0x1fc/0x2ef [ 49.490149] should_fail.cold+0xa/0xf [ 49.493946] ? setup_fault_attr+0x200/0x200 [ 49.498342] ? lock_acquire+0x170/0x3c0 [ 49.502300] __should_failslab+0x115/0x180 [ 49.506518] should_failslab+0x5/0x10 [ 49.510310] kmem_cache_alloc+0x277/0x370 [ 49.514449] __d_alloc+0x2b/0xa10 [ 49.517885] ? lock_downgrade+0x720/0x720 [ 49.522013] ? lock_acquire+0x170/0x3c0 [ 49.525968] d_alloc+0x4a/0x230 [ 49.529319] d_alloc_parallel+0xeb/0x19e0 [ 49.533456] ? mark_held_locks+0xf0/0xf0 [ 49.537496] ? __lock_acquire+0x6de/0x3ff0 [ 49.541712] ? __d_lookup_rcu+0x6b0/0x6b0 [ 49.545850] ? mark_held_locks+0xf0/0xf0 [ 49.549894] ? mark_held_locks+0xf0/0xf0 [ 49.553936] ? __lockdep_init_map+0x100/0x5a0 [ 49.558425] ? __lockdep_init_map+0x100/0x5a0 [ 49.562906] __lookup_slow+0x18d/0x4a0 [ 49.566777] ? check_preemption_disabled+0x41/0x280 [ 49.571774] ? follow_dotdot_rcu+0x1040/0x1040 [ 49.576364] ? __d_lookup+0x411/0x710 [ 49.580151] ? d_lookup+0x18e/0x250 [ 49.583762] lookup_one_len+0x163/0x190 [ 49.587720] ? try_lookup_one_len+0x180/0x180 [ 49.592200] start_creating+0xc9/0x220 [ 49.596069] __debugfs_create_file+0x5e/0x480 [ 49.600549] bdi_register_va.part.0+0x24b/0x750 [ 49.605200] bdi_register+0x12a/0x140 [ 49.609093] ? bdi_register_va+0x80/0x80 [ 49.613162] ? vsnprintf+0x2cc/0x14f0 [ 49.616946] bdi_register_owner+0x59/0x100 [ 49.621165] __device_add_disk+0xd58/0x10c0 [ 49.625468] ? sprintf+0xc0/0x100 [ 49.628901] ? blk_alloc_devt+0x2d0/0x2d0 [ 49.633032] ? __raw_spin_lock_init+0x28/0x100 [ 49.637595] ? __lockdep_init_map+0x100/0x5a0 [ 49.642074] loop_add+0x628/0x8a0 [ 49.645510] loop_control_ioctl+0x16c/0x480 [ 49.649813] ? loop_lookup+0x1d0/0x1d0 [ 49.653690] ? __vfs_write+0xff/0x770 [ 49.657472] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 49.662384] ? common_file_perm+0x4e5/0x850 [ 49.666702] ? loop_lookup+0x1d0/0x1d0 [ 49.670573] do_vfs_ioctl+0xcdb/0x12e0 [ 49.674445] ? vfs_write+0x3d7/0x540 [ 49.678140] ? ioctl_preallocate+0x200/0x200 [ 49.682529] ? lock_downgrade+0x720/0x720 [ 49.686662] ? check_preemption_disabled+0x41/0x280 [ 49.691660] ? vfs_write+0x393/0x540 [ 49.695357] ? ksys_write+0x1c8/0x2a0 [ 49.699140] ksys_ioctl+0x9b/0xc0 [ 49.702574] __x64_sys_ioctl+0x6f/0xb0 [ 49.706440] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 49.711000] do_syscall_64+0xf9/0x620 [ 49.714791] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.719961] RIP: 0033:0x7fa6bb5cf079 [ 49.723656] 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 [ 49.742535] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 49.750222] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 49.757471] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.764719] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 49.771977] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 49.779233] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 49.832358] FAULT_INJECTION: forcing a failure. [ 49.832358] name failslab, interval 1, probability 0, space 0, times 0 [ 49.844030] CPU: 1 PID: 8496 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 49.851898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.861231] Call Trace: [ 49.863800] dump_stack+0x1fc/0x2ef [ 49.867412] should_fail.cold+0xa/0xf [ 49.871369] ? setup_fault_attr+0x200/0x200 [ 49.875679] ? lock_acquire+0x170/0x3c0 [ 49.879635] __should_failslab+0x115/0x180 [ 49.883853] should_failslab+0x5/0x10 [ 49.887635] kmem_cache_alloc+0x277/0x370 [ 49.891765] __d_alloc+0x2b/0xa10 [ 49.895222] d_alloc+0x4a/0x230 [ 49.898484] d_alloc_parallel+0xeb/0x19e0 [ 49.902625] ? mark_held_locks+0xf0/0xf0 [ 49.906723] ? __d_lookup_rcu+0x6b0/0x6b0 [ 49.910856] ? device_add+0xbf8/0x16d0 [ 49.914735] ? mark_held_locks+0xf0/0xf0 [ 49.918794] ? __lockdep_init_map+0x100/0x5a0 [ 49.923275] ? __lockdep_init_map+0x100/0x5a0 [ 49.927756] __lookup_slow+0x18d/0x4a0 [ 49.931629] ? check_preemption_disabled+0x41/0x280 [ 49.936639] ? follow_dotdot_rcu+0x1040/0x1040 [ 49.941205] ? __d_lookup+0x411/0x710 [ 49.945033] ? d_lookup+0x18e/0x250 [ 49.948649] lookup_one_len+0x163/0x190 [ 49.952609] ? try_lookup_one_len+0x180/0x180 [ 49.957086] start_creating+0xc9/0x220 [ 49.960998] debugfs_create_dir+0x1f/0x440 [ 49.965225] bdi_register_va.part.0+0x1f7/0x750 [ 49.969889] bdi_register+0x12a/0x140 [ 49.973685] ? bdi_register_va+0x80/0x80 [ 49.977733] ? vsnprintf+0x2cc/0x14f0 [ 49.981677] bdi_register_owner+0x59/0x100 [ 49.985895] __device_add_disk+0xd58/0x10c0 [ 49.990200] ? sprintf+0xc0/0x100 [ 49.993639] ? blk_alloc_devt+0x2d0/0x2d0 [ 49.997777] ? __raw_spin_lock_init+0x28/0x100 [ 50.002339] ? __lockdep_init_map+0x100/0x5a0 [ 50.006818] loop_add+0x628/0x8a0 [ 50.010259] loop_control_ioctl+0x16c/0x480 [ 50.014559] ? loop_lookup+0x1d0/0x1d0 [ 50.018429] ? __vfs_write+0xff/0x770 [ 50.022207] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 50.027115] ? common_file_perm+0x4e5/0x850 [ 50.031420] ? loop_lookup+0x1d0/0x1d0 [ 50.035380] do_vfs_ioctl+0xcdb/0x12e0 [ 50.039246] ? vfs_write+0x3d7/0x540 [ 50.042937] ? ioctl_preallocate+0x200/0x200 [ 50.047325] ? lock_downgrade+0x720/0x720 [ 50.051458] ? check_preemption_disabled+0x41/0x280 [ 50.056453] ? vfs_write+0x393/0x540 [ 50.060151] ? ksys_write+0x1c8/0x2a0 [ 50.063975] ksys_ioctl+0x9b/0xc0 [ 50.067411] __x64_sys_ioctl+0x6f/0xb0 [ 50.071282] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 50.075844] do_syscall_64+0xf9/0x620 [ 50.079636] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.084818] RIP: 0033:0x7fa6bb5cf079 [ 50.088518] 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 [ 50.107407] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.115102] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 50.122358] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 50.129608] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 50.136868] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.144122] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.212662] FAULT_INJECTION: forcing a failure. [ 50.212662] name failslab, interval 1, probability 0, space 0, times 0 [ 50.224336] CPU: 1 PID: 8505 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 50.232216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.241551] Call Trace: [ 50.244125] dump_stack+0x1fc/0x2ef [ 50.247740] should_fail.cold+0xa/0xf [ 50.251522] ? setup_fault_attr+0x200/0x200 [ 50.255824] ? lock_acquire+0x170/0x3c0 [ 50.259781] __should_failslab+0x115/0x180 [ 50.264002] should_failslab+0x5/0x10 [ 50.267781] kmem_cache_alloc+0x277/0x370 [ 50.271911] __d_alloc+0x2b/0xa10 [ 50.275345] d_alloc+0x4a/0x230 [ 50.278607] d_alloc_parallel+0xeb/0x19e0 [ 50.282742] ? mark_held_locks+0xf0/0xf0 [ 50.286784] ? __d_lookup_rcu+0x6b0/0x6b0 [ 50.290915] ? device_add+0xbf8/0x16d0 [ 50.294957] ? mark_held_locks+0xf0/0xf0 [ 50.299092] ? __lockdep_init_map+0x100/0x5a0 [ 50.303567] ? __lockdep_init_map+0x100/0x5a0 [ 50.308040] __lookup_slow+0x18d/0x4a0 [ 50.311907] ? check_preemption_disabled+0x41/0x280 [ 50.316903] ? follow_dotdot_rcu+0x1040/0x1040 [ 50.321470] ? __d_lookup+0x411/0x710 [ 50.325265] ? d_lookup+0x18e/0x250 [ 50.328885] lookup_one_len+0x163/0x190 [ 50.332926] ? try_lookup_one_len+0x180/0x180 [ 50.337512] start_creating+0xc9/0x220 [ 50.341383] debugfs_create_dir+0x1f/0x440 [ 50.345606] bdi_register_va.part.0+0x1f7/0x750 [ 50.350261] bdi_register+0x12a/0x140 [ 50.354043] ? bdi_register_va+0x80/0x80 [ 50.358099] ? vsnprintf+0x2cc/0x14f0 [ 50.361886] bdi_register_owner+0x59/0x100 [ 50.366106] __device_add_disk+0xd58/0x10c0 [ 50.370412] ? sprintf+0xc0/0x100 [ 50.373846] ? blk_alloc_devt+0x2d0/0x2d0 [ 50.377975] ? __raw_spin_lock_init+0x28/0x100 [ 50.382540] ? __lockdep_init_map+0x100/0x5a0 [ 50.387019] loop_add+0x628/0x8a0 [ 50.390552] loop_control_ioctl+0x16c/0x480 [ 50.394854] ? loop_lookup+0x1d0/0x1d0 [ 50.398730] ? __vfs_write+0xff/0x770 [ 50.402514] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 50.407433] ? common_file_perm+0x4e5/0x850 [ 50.411743] ? loop_lookup+0x1d0/0x1d0 [ 50.415619] do_vfs_ioctl+0xcdb/0x12e0 [ 50.419497] ? vfs_write+0x3d7/0x540 [ 50.423196] ? ioctl_preallocate+0x200/0x200 [ 50.427585] ? lock_downgrade+0x720/0x720 [ 50.431722] ? check_preemption_disabled+0x41/0x280 [ 50.436719] ? vfs_write+0x393/0x540 [ 50.440415] ? ksys_write+0x1c8/0x2a0 [ 50.444199] ksys_ioctl+0x9b/0xc0 [ 50.447636] __x64_sys_ioctl+0x6f/0xb0 [ 50.451522] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 50.456085] do_syscall_64+0xf9/0x620 [ 50.459874] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.465041] RIP: 0033:0x7fa6bb5cf079 [ 50.468741] 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 [ 50.487625] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.495314] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 50.502567] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 50.510082] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 50.517330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.524578] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.572225] FAULT_INJECTION: forcing a failure. [ 50.572225] name failslab, interval 1, probability 0, space 0, times 0 [ 50.583697] CPU: 1 PID: 8514 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 50.591566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.600907] Call Trace: [ 50.603481] dump_stack+0x1fc/0x2ef [ 50.607102] should_fail.cold+0xa/0xf [ 50.610894] ? setup_fault_attr+0x200/0x200 [ 50.615196] ? lock_acquire+0x170/0x3c0 [ 50.619163] __should_failslab+0x115/0x180 [ 50.623384] should_failslab+0x5/0x10 [ 50.627166] kmem_cache_alloc+0x277/0x370 [ 50.631297] __d_alloc+0x2b/0xa10 [ 50.634738] d_alloc+0x4a/0x230 [ 50.638096] d_alloc_parallel+0xeb/0x19e0 [ 50.642232] ? mark_held_locks+0xf0/0xf0 [ 50.646276] ? __d_lookup_rcu+0x6b0/0x6b0 [ 50.650403] ? device_add+0xbf8/0x16d0 [ 50.654272] ? mark_held_locks+0xf0/0xf0 [ 50.658312] ? __lockdep_init_map+0x100/0x5a0 [ 50.662791] ? __lockdep_init_map+0x100/0x5a0 [ 50.667283] __lookup_slow+0x18d/0x4a0 [ 50.671158] ? check_preemption_disabled+0x41/0x280 [ 50.676154] ? follow_dotdot_rcu+0x1040/0x1040 [ 50.680726] ? __d_lookup+0x411/0x710 [ 50.684514] ? d_lookup+0x18e/0x250 [ 50.688144] lookup_one_len+0x163/0x190 [ 50.692110] ? try_lookup_one_len+0x180/0x180 [ 50.696595] start_creating+0xc9/0x220 [ 50.700463] debugfs_create_dir+0x1f/0x440 [ 50.704683] bdi_register_va.part.0+0x1f7/0x750 [ 50.709335] bdi_register+0x12a/0x140 [ 50.713135] ? bdi_register_va+0x80/0x80 [ 50.717185] ? vsnprintf+0x2cc/0x14f0 [ 50.720989] bdi_register_owner+0x59/0x100 [ 50.725209] __device_add_disk+0xd58/0x10c0 [ 50.729523] ? sprintf+0xc0/0x100 [ 50.732959] ? blk_alloc_devt+0x2d0/0x2d0 [ 50.737103] ? __raw_spin_lock_init+0x28/0x100 [ 50.741669] ? __lockdep_init_map+0x100/0x5a0 [ 50.746153] loop_add+0x628/0x8a0 [ 50.749603] loop_control_ioctl+0x16c/0x480 [ 50.753912] ? loop_lookup+0x1d0/0x1d0 [ 50.757785] ? __vfs_write+0xff/0x770 [ 50.761574] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 50.766509] ? common_file_perm+0x4e5/0x850 [ 50.770833] ? loop_lookup+0x1d0/0x1d0 [ 50.774709] do_vfs_ioctl+0xcdb/0x12e0 [ 50.778588] ? vfs_write+0x3d7/0x540 [ 50.782286] ? ioctl_preallocate+0x200/0x200 [ 50.786681] ? lock_downgrade+0x720/0x720 [ 50.790818] ? check_preemption_disabled+0x41/0x280 [ 50.795826] ? vfs_write+0x393/0x540 [ 50.799531] ? ksys_write+0x1c8/0x2a0 [ 50.803423] ksys_ioctl+0x9b/0xc0 [ 50.806867] __x64_sys_ioctl+0x6f/0xb0 [ 50.810741] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 50.815313] do_syscall_64+0xf9/0x620 [ 50.819101] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.824275] RIP: 0033:0x7fa6bb5cf079 [ 50.827979] 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 [ 50.847911] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.855603] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 50.862855] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 50.870105] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 50.877362] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.884615] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.952791] FAULT_INJECTION: forcing a failure. [ 50.952791] name failslab, interval 1, probability 0, space 0, times 0 [ 50.964358] CPU: 1 PID: 8524 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 50.972321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.981668] Call Trace: [ 50.984250] dump_stack+0x1fc/0x2ef [ 50.987875] should_fail.cold+0xa/0xf [ 50.991666] ? setup_fault_attr+0x200/0x200 [ 50.995977] ? lock_acquire+0x170/0x3c0 [ 50.999942] __should_failslab+0x115/0x180 [ 51.004213] should_failslab+0x5/0x10 [ 51.008020] kmem_cache_alloc+0x277/0x370 [ 51.012158] skb_clone+0x151/0x3d0 [ 51.015690] netlink_broadcast_filtered+0x8e5/0xbc0 [ 51.020698] netlink_broadcast+0x35/0x40 [ 51.024919] kobject_uevent_env+0xa56/0x1480 [ 51.029318] device_add+0xb2f/0x16d0 [ 51.033019] ? device_check_offline+0x280/0x280 [ 51.037672] ? kfree_const+0x51/0x60 [ 51.041370] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 51.046370] ? kfree+0x1e2/0x210 [ 51.049725] device_create_groups_vargs+0x1f4/0x270 [ 51.055082] device_create+0xdf/0x120 [ 51.058871] ? device_create_vargs+0x50/0x50 [ 51.063266] ? pointer+0x850/0x850 [ 51.066803] bdi_register_va.part.0+0x4c/0x750 [ 51.071385] bdi_register+0x12a/0x140 [ 51.075171] ? bdi_register_va+0x80/0x80 [ 51.079218] ? vsnprintf+0x2cc/0x14f0 [ 51.083009] bdi_register_owner+0x59/0x100 [ 51.087234] __device_add_disk+0xd58/0x10c0 [ 51.091542] ? sprintf+0xc0/0x100 [ 51.094976] ? blk_alloc_devt+0x2d0/0x2d0 [ 51.099129] ? __raw_spin_lock_init+0x28/0x100 [ 51.103868] ? __lockdep_init_map+0x100/0x5a0 [ 51.108350] loop_add+0x628/0x8a0 [ 51.111792] loop_control_ioctl+0x16c/0x480 [ 51.116096] ? loop_lookup+0x1d0/0x1d0 [ 51.119970] ? __vfs_write+0xff/0x770 [ 51.123754] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 51.128663] ? common_file_perm+0x4e5/0x850 [ 51.132966] ? loop_lookup+0x1d0/0x1d0 [ 51.136835] do_vfs_ioctl+0xcdb/0x12e0 [ 51.140706] ? vfs_write+0x3d7/0x540 [ 51.144405] ? ioctl_preallocate+0x200/0x200 [ 51.148795] ? lock_downgrade+0x720/0x720 [ 51.152931] ? check_preemption_disabled+0x41/0x280 [ 51.157939] ? vfs_write+0x393/0x540 [ 51.161637] ? ksys_write+0x1c8/0x2a0 [ 51.165420] ksys_ioctl+0x9b/0xc0 [ 51.168859] __x64_sys_ioctl+0x6f/0xb0 [ 51.172762] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 51.177327] do_syscall_64+0xf9/0x620 [ 51.181113] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.186371] RIP: 0033:0x7fa6bb5cf079 executing program executing program [ 51.190071] 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 [ 51.208953] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.216642] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 51.223893] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.231145] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 51.238402] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 51.245653] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.302478] FAULT_INJECTION: forcing a failure. [ 51.302478] name failslab, interval 1, probability 0, space 0, times 0 [ 51.314447] CPU: 0 PID: 8533 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 51.322336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.331672] Call Trace: [ 51.334247] dump_stack+0x1fc/0x2ef [ 51.337859] should_fail.cold+0xa/0xf [ 51.341645] ? setup_fault_attr+0x200/0x200 [ 51.345955] ? lock_acquire+0x170/0x3c0 [ 51.349914] __should_failslab+0x115/0x180 [ 51.354159] should_failslab+0x5/0x10 [ 51.357942] kmem_cache_alloc+0x277/0x370 [ 51.362085] alloc_inode+0xab/0x180 [ 51.365697] new_inode+0x1d/0xf0 [ 51.369043] debugfs_get_inode+0x1a/0x130 [ 51.373178] debugfs_create_dir+0x73/0x440 [ 51.377407] bdi_register_va.part.0+0x1f7/0x750 [ 51.382069] bdi_register+0x12a/0x140 [ 51.385851] ? bdi_register_va+0x80/0x80 [ 51.389898] ? vsnprintf+0x2cc/0x14f0 [ 51.393682] bdi_register_owner+0x59/0x100 [ 51.397901] __device_add_disk+0xd58/0x10c0 [ 51.402208] ? sprintf+0xc0/0x100 [ 51.405644] ? blk_alloc_devt+0x2d0/0x2d0 [ 51.409778] ? __raw_spin_lock_init+0x28/0x100 [ 51.414345] ? __lockdep_init_map+0x100/0x5a0 [ 51.418825] loop_add+0x628/0x8a0 [ 51.422266] loop_control_ioctl+0x16c/0x480 [ 51.426578] ? loop_lookup+0x1d0/0x1d0 [ 51.430451] ? __vfs_write+0xff/0x770 [ 51.434233] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 51.439146] ? common_file_perm+0x4e5/0x850 [ 51.443462] ? loop_lookup+0x1d0/0x1d0 [ 51.447333] do_vfs_ioctl+0xcdb/0x12e0 [ 51.451291] ? vfs_write+0x3d7/0x540 [ 51.455020] ? ioctl_preallocate+0x200/0x200 [ 51.459414] ? lock_downgrade+0x720/0x720 [ 51.463545] ? check_preemption_disabled+0x41/0x280 [ 51.468547] ? vfs_write+0x393/0x540 [ 51.472244] ? ksys_write+0x1c8/0x2a0 [ 51.476028] ksys_ioctl+0x9b/0xc0 [ 51.479468] __x64_sys_ioctl+0x6f/0xb0 [ 51.483339] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 51.487917] do_syscall_64+0xf9/0x620 [ 51.491715] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.496889] RIP: 0033:0x7fa6bb5cf079 [ 51.500596] 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 [ 51.519483] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.527180] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 51.534434] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.541688] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 51.548940] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 51.556191] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.611752] FAULT_INJECTION: forcing a failure. [ 51.611752] name failslab, interval 1, probability 0, space 0, times 0 [ 51.623395] CPU: 0 PID: 8544 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 51.631274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.640618] Call Trace: [ 51.643205] dump_stack+0x1fc/0x2ef [ 51.646824] should_fail.cold+0xa/0xf [ 51.650610] ? setup_fault_attr+0x200/0x200 [ 51.654916] ? lock_acquire+0x170/0x3c0 [ 51.658876] __should_failslab+0x115/0x180 [ 51.663098] should_failslab+0x5/0x10 [ 51.666883] kmem_cache_alloc+0x277/0x370 [ 51.671016] alloc_inode+0xab/0x180 [ 51.674624] new_inode+0x1d/0xf0 [ 51.677970] debugfs_get_inode+0x1a/0x130 [ 51.682103] debugfs_create_dir+0x73/0x440 [ 51.686323] bdi_register_va.part.0+0x1f7/0x750 [ 51.690975] bdi_register+0x12a/0x140 [ 51.694758] ? bdi_register_va+0x80/0x80 [ 51.698806] ? vsnprintf+0x2cc/0x14f0 [ 51.702594] bdi_register_owner+0x59/0x100 [ 51.706814] __device_add_disk+0xd58/0x10c0 [ 51.711133] ? sprintf+0xc0/0x100 [ 51.714571] ? blk_alloc_devt+0x2d0/0x2d0 [ 51.718706] ? __raw_spin_lock_init+0x28/0x100 [ 51.723274] ? __lockdep_init_map+0x100/0x5a0 [ 51.727754] loop_add+0x628/0x8a0 [ 51.731202] loop_control_ioctl+0x16c/0x480 [ 51.735506] ? loop_lookup+0x1d0/0x1d0 [ 51.739381] ? __vfs_write+0xff/0x770 [ 51.743163] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 51.748076] ? common_file_perm+0x4e5/0x850 [ 51.752383] ? loop_lookup+0x1d0/0x1d0 [ 51.756253] do_vfs_ioctl+0xcdb/0x12e0 [ 51.760126] ? vfs_write+0x3d7/0x540 [ 51.763833] ? ioctl_preallocate+0x200/0x200 [ 51.768227] ? lock_downgrade+0x720/0x720 [ 51.772368] ? check_preemption_disabled+0x41/0x280 [ 51.777371] ? vfs_write+0x393/0x540 [ 51.781070] ? ksys_write+0x1c8/0x2a0 [ 51.784854] ksys_ioctl+0x9b/0xc0 [ 51.788293] __x64_sys_ioctl+0x6f/0xb0 [ 51.792172] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 51.796744] do_syscall_64+0xf9/0x620 [ 51.800556] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.805726] RIP: 0033:0x7fa6bb5cf079 [ 51.809475] 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 [ 51.828365] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.836057] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 51.843311] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.850563] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 51.857819] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 51.865082] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.932863] FAULT_INJECTION: forcing a failure. [ 51.932863] name failslab, interval 1, probability 0, space 0, times 0 [ 51.944181] CPU: 0 PID: 8554 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 51.952066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.961407] Call Trace: [ 51.963983] dump_stack+0x1fc/0x2ef [ 51.967600] should_fail.cold+0xa/0xf [ 51.971387] ? setup_fault_attr+0x200/0x200 [ 51.975694] ? lock_acquire+0x170/0x3c0 [ 51.979656] __should_failslab+0x115/0x180 [ 51.983887] should_failslab+0x5/0x10 [ 51.987679] kmem_cache_alloc+0x277/0x370 [ 51.991812] alloc_inode+0xab/0x180 [ 51.995419] new_inode+0x1d/0xf0 [ 51.998768] debugfs_get_inode+0x1a/0x130 [ 52.002900] debugfs_create_dir+0x73/0x440 [ 52.007119] bdi_register_va.part.0+0x1f7/0x750 [ 52.011774] bdi_register+0x12a/0x140 [ 52.015558] ? bdi_register_va+0x80/0x80 [ 52.019607] ? vsnprintf+0x2cc/0x14f0 [ 52.023394] bdi_register_owner+0x59/0x100 [ 52.027622] __device_add_disk+0xd58/0x10c0 [ 52.031936] ? sprintf+0xc0/0x100 [ 52.035379] ? blk_alloc_devt+0x2d0/0x2d0 [ 52.039517] ? __raw_spin_lock_init+0x28/0x100 [ 52.044092] ? __lockdep_init_map+0x100/0x5a0 [ 52.048579] loop_add+0x628/0x8a0 [ 52.052033] loop_control_ioctl+0x16c/0x480 [ 52.056347] ? loop_lookup+0x1d0/0x1d0 [ 52.060221] ? __vfs_write+0xff/0x770 [ 52.064006] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 52.068924] ? common_file_perm+0x4e5/0x850 [ 52.073237] ? loop_lookup+0x1d0/0x1d0 [ 52.077112] do_vfs_ioctl+0xcdb/0x12e0 [ 52.080985] ? vfs_write+0x3d7/0x540 [ 52.084683] ? ioctl_preallocate+0x200/0x200 [ 52.089077] ? lock_downgrade+0x720/0x720 [ 52.093213] ? check_preemption_disabled+0x41/0x280 [ 52.098227] ? vfs_write+0x393/0x540 [ 52.101932] ? ksys_write+0x1c8/0x2a0 [ 52.105721] ksys_ioctl+0x9b/0xc0 [ 52.109162] __x64_sys_ioctl+0x6f/0xb0 [ 52.113036] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 52.117604] do_syscall_64+0xf9/0x620 [ 52.121429] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.126602] RIP: 0033:0x7fa6bb5cf079 [ 52.130303] 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 [ 52.149394] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.157096] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 52.164396] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 52.171654] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 52.178909] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 52.186171] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 52.251826] FAULT_INJECTION: forcing a failure. [ 52.251826] name failslab, interval 1, probability 0, space 0, times 0 [ 52.263323] CPU: 1 PID: 8564 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 52.271196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.280970] Call Trace: [ 52.283547] dump_stack+0x1fc/0x2ef [ 52.287160] should_fail.cold+0xa/0xf [ 52.290977] ? setup_fault_attr+0x200/0x200 [ 52.295283] ? lock_acquire+0x170/0x3c0 [ 52.299251] __should_failslab+0x115/0x180 [ 52.303470] should_failslab+0x5/0x10 [ 52.307256] kmem_cache_alloc+0x277/0x370 [ 52.311420] __d_alloc+0x2b/0xa10 [ 52.314860] d_alloc+0x4a/0x230 [ 52.318122] d_alloc_parallel+0xeb/0x19e0 [ 52.322262] ? mark_held_locks+0xf0/0xf0 [ 52.326315] ? __d_lookup_rcu+0x6b0/0x6b0 [ 52.330464] ? device_add+0xbf8/0x16d0 [ 52.334344] ? mark_held_locks+0xf0/0xf0 [ 52.338407] ? __lockdep_init_map+0x100/0x5a0 [ 52.342891] ? __lockdep_init_map+0x100/0x5a0 [ 52.347378] __lookup_slow+0x18d/0x4a0 [ 52.351257] ? check_preemption_disabled+0x41/0x280 [ 52.356270] ? follow_dotdot_rcu+0x1040/0x1040 [ 52.360847] ? __d_lookup+0x411/0x710 [ 52.364645] ? d_lookup+0x18e/0x250 [ 52.368264] lookup_one_len+0x163/0x190 [ 52.372227] ? try_lookup_one_len+0x180/0x180 [ 52.376713] start_creating+0xc9/0x220 [ 52.380589] debugfs_create_dir+0x1f/0x440 [ 52.384815] bdi_register_va.part.0+0x1f7/0x750 [ 52.389474] bdi_register+0x12a/0x140 [ 52.393349] ? bdi_register_va+0x80/0x80 [ 52.397404] ? vsnprintf+0x2cc/0x14f0 [ 52.401201] bdi_register_owner+0x59/0x100 [ 52.405424] __device_add_disk+0xd58/0x10c0 [ 52.409733] ? sprintf+0xc0/0x100 [ 52.413170] ? blk_alloc_devt+0x2d0/0x2d0 [ 52.417306] ? __raw_spin_lock_init+0x28/0x100 [ 52.421873] ? __lockdep_init_map+0x100/0x5a0 [ 52.426356] loop_add+0x628/0x8a0 [ 52.429794] loop_control_ioctl+0x16c/0x480 [ 52.434105] ? loop_lookup+0x1d0/0x1d0 [ 52.437977] ? __vfs_write+0xff/0x770 [ 52.441763] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 52.446674] ? common_file_perm+0x4e5/0x850 [ 52.450979] ? loop_lookup+0x1d0/0x1d0 [ 52.454852] do_vfs_ioctl+0xcdb/0x12e0 [ 52.458726] ? vfs_write+0x3d7/0x540 [ 52.462424] ? ioctl_preallocate+0x200/0x200 [ 52.466818] ? lock_downgrade+0x720/0x720 [ 52.470950] ? check_preemption_disabled+0x41/0x280 [ 52.475958] ? vfs_write+0x393/0x540 [ 52.479655] ? ksys_write+0x1c8/0x2a0 [ 52.483441] ksys_ioctl+0x9b/0xc0 [ 52.486889] __x64_sys_ioctl+0x6f/0xb0 [ 52.490766] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 52.495331] do_syscall_64+0xf9/0x620 [ 52.499122] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.504298] RIP: 0033:0x7fa6bb5cf079 [ 52.507995] 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 [ 52.526879] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.534569] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 52.541821] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 52.549075] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 52.556327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 52.563580] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 52.621769] FAULT_INJECTION: forcing a failure. [ 52.621769] name failslab, interval 1, probability 0, space 0, times 0 [ 52.633247] CPU: 1 PID: 8573 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 52.641119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.650472] Call Trace: [ 52.653050] dump_stack+0x1fc/0x2ef [ 52.656914] should_fail.cold+0xa/0xf [ 52.661083] ? setup_fault_attr+0x200/0x200 [ 52.665800] ? lock_acquire+0x170/0x3c0 [ 52.670281] __should_failslab+0x115/0x180 [ 52.674925] should_failslab+0x5/0x10 [ 52.678868] kmem_cache_alloc+0x277/0x370 [ 52.683020] skb_clone+0x151/0x3d0 [ 52.686550] netlink_broadcast_filtered+0x8e5/0xbc0 [ 52.691555] netlink_broadcast+0x35/0x40 [ 52.695602] kobject_uevent_env+0xa56/0x1480 [ 52.700000] device_add+0xb2f/0x16d0 [ 52.703697] ? device_check_offline+0x280/0x280 [ 52.708352] ? kfree_const+0x51/0x60 [ 52.712047] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 52.717046] ? kfree+0x1e2/0x210 [ 52.720395] device_create_groups_vargs+0x1f4/0x270 [ 52.725396] device_create+0xdf/0x120 [ 52.729178] ? device_create_vargs+0x50/0x50 [ 52.733574] ? pointer+0x850/0x850 [ 52.737101] bdi_register_va.part.0+0x4c/0x750 [ 52.741668] bdi_register+0x12a/0x140 [ 52.745451] ? bdi_register_va+0x80/0x80 [ 52.749498] ? vsnprintf+0x2cc/0x14f0 [ 52.753286] bdi_register_owner+0x59/0x100 [ 52.757504] __device_add_disk+0xd58/0x10c0 [ 52.761814] ? sprintf+0xc0/0x100 [ 52.765252] ? blk_alloc_devt+0x2d0/0x2d0 [ 52.769383] ? __raw_spin_lock_init+0x28/0x100 [ 52.773953] ? __lockdep_init_map+0x100/0x5a0 [ 52.778435] loop_add+0x628/0x8a0 [ 52.781873] loop_control_ioctl+0x16c/0x480 [ 52.786176] ? loop_lookup+0x1d0/0x1d0 [ 52.790046] ? __vfs_write+0xff/0x770 [ 52.793825] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 52.798736] ? common_file_perm+0x4e5/0x850 [ 52.803038] ? loop_lookup+0x1d0/0x1d0 [ 52.806911] do_vfs_ioctl+0xcdb/0x12e0 [ 52.810785] ? vfs_write+0x3d7/0x540 [ 52.814484] ? ioctl_preallocate+0x200/0x200 [ 52.818875] ? lock_downgrade+0x720/0x720 [ 52.823019] ? check_preemption_disabled+0x41/0x280 [ 52.828028] ? vfs_write+0x393/0x540 [ 52.831725] ? ksys_write+0x1c8/0x2a0 [ 52.835512] ksys_ioctl+0x9b/0xc0 [ 52.838950] __x64_sys_ioctl+0x6f/0xb0 [ 52.842819] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 52.847380] do_syscall_64+0xf9/0x620 [ 52.851165] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.856511] RIP: 0033:0x7fa6bb5cf079 [ 52.860277] 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 [ 52.879168] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.886881] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 52.894137] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 52.901395] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 52.908644] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 52.916008] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 executing program [ 52.981606] FAULT_INJECTION: forcing a failure. [ 52.981606] name failslab, interval 1, probability 0, space 0, times 0 [ 52.992850] CPU: 1 PID: 8580 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 53.000713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.010049] Call Trace: [ 53.012628] dump_stack+0x1fc/0x2ef [ 53.016240] should_fail.cold+0xa/0xf [ 53.020030] ? setup_fault_attr+0x200/0x200 [ 53.024333] ? lock_acquire+0x170/0x3c0 [ 53.028296] __should_failslab+0x115/0x180 [ 53.032513] should_failslab+0x5/0x10 [ 53.036297] kmem_cache_alloc+0x277/0x370 [ 53.040432] alloc_inode+0xab/0x180 [ 53.044137] new_inode+0x1d/0xf0 [ 53.047659] debugfs_get_inode+0x1a/0x130 [ 53.051972] debugfs_create_dir+0x73/0x440 [ 53.056198] bdi_register_va.part.0+0x1f7/0x750 [ 53.060853] bdi_register+0x12a/0x140 [ 53.064642] ? bdi_register_va+0x80/0x80 [ 53.068690] ? vsnprintf+0x2cc/0x14f0 [ 53.072478] bdi_register_owner+0x59/0x100 [ 53.076783] __device_add_disk+0xd58/0x10c0 [ 53.081091] ? sprintf+0xc0/0x100 [ 53.084525] ? blk_alloc_devt+0x2d0/0x2d0 [ 53.088656] ? __raw_spin_lock_init+0x28/0x100 [ 53.093224] ? __lockdep_init_map+0x100/0x5a0 [ 53.097705] loop_add+0x628/0x8a0 [ 53.101143] loop_control_ioctl+0x16c/0x480 [ 53.105466] ? loop_lookup+0x1d0/0x1d0 [ 53.109343] ? __vfs_write+0xff/0x770 [ 53.113127] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 53.118045] ? common_file_perm+0x4e5/0x850 [ 53.122351] ? loop_lookup+0x1d0/0x1d0 [ 53.126226] do_vfs_ioctl+0xcdb/0x12e0 [ 53.130102] ? vfs_write+0x3d7/0x540 [ 53.133801] ? ioctl_preallocate+0x200/0x200 [ 53.138195] ? lock_downgrade+0x720/0x720 [ 53.142331] ? check_preemption_disabled+0x41/0x280 [ 53.147343] ? vfs_write+0x393/0x540 [ 53.151047] ? ksys_write+0x1c8/0x2a0 [ 53.154831] ksys_ioctl+0x9b/0xc0 [ 53.158280] __x64_sys_ioctl+0x6f/0xb0 [ 53.162158] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 53.166723] do_syscall_64+0xf9/0x620 [ 53.170618] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.175792] RIP: 0033:0x7fa6bb5cf079 [ 53.179494] 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 [ 53.198380] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.206074] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 53.213326] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 53.220576] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 53.227825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 53.235084] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 53.281360] FAULT_INJECTION: forcing a failure. [ 53.281360] name failslab, interval 1, probability 0, space 0, times 0 [ 53.292901] CPU: 1 PID: 8588 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 53.300773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.310108] Call Trace: [ 53.312681] dump_stack+0x1fc/0x2ef [ 53.316299] should_fail.cold+0xa/0xf [ 53.320091] ? setup_fault_attr+0x200/0x200 [ 53.324393] ? lock_acquire+0x170/0x3c0 [ 53.328365] __should_failslab+0x115/0x180 [ 53.332589] should_failslab+0x5/0x10 [ 53.336368] kmem_cache_alloc+0x277/0x370 [ 53.340502] alloc_inode+0xab/0x180 [ 53.344110] new_inode+0x1d/0xf0 [ 53.347458] debugfs_get_inode+0x1a/0x130 [ 53.351595] debugfs_create_dir+0x73/0x440 [ 53.355814] bdi_register_va.part.0+0x1f7/0x750 [ 53.360470] bdi_register+0x12a/0x140 [ 53.364251] ? bdi_register_va+0x80/0x80 [ 53.368297] ? vsnprintf+0x2cc/0x14f0 [ 53.372082] bdi_register_owner+0x59/0x100 [ 53.376300] __device_add_disk+0xd58/0x10c0 [ 53.380605] ? sprintf+0xc0/0x100 [ 53.384037] ? blk_alloc_devt+0x2d0/0x2d0 [ 53.388173] ? __raw_spin_lock_init+0x28/0x100 [ 53.392739] ? __lockdep_init_map+0x100/0x5a0 [ 53.397218] loop_add+0x628/0x8a0 [ 53.400654] loop_control_ioctl+0x16c/0x480 [ 53.404966] ? loop_lookup+0x1d0/0x1d0 [ 53.408843] ? __vfs_write+0xff/0x770 [ 53.412637] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 53.417553] ? common_file_perm+0x4e5/0x850 [ 53.421859] ? loop_lookup+0x1d0/0x1d0 [ 53.425731] do_vfs_ioctl+0xcdb/0x12e0 [ 53.429610] ? vfs_write+0x3d7/0x540 [ 53.433308] ? ioctl_preallocate+0x200/0x200 [ 53.437700] ? lock_downgrade+0x720/0x720 [ 53.441831] ? check_preemption_disabled+0x41/0x280 [ 53.446832] ? vfs_write+0x393/0x540 [ 53.450527] ? ksys_write+0x1c8/0x2a0 [ 53.454312] ksys_ioctl+0x9b/0xc0 [ 53.457750] __x64_sys_ioctl+0x6f/0xb0 [ 53.461628] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 53.466191] do_syscall_64+0xf9/0x620 [ 53.469980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.475151] RIP: 0033:0x7fa6bb5cf079 [ 53.478844] 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 [ 53.498246] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.505936] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 53.513188] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 53.520439] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 53.527743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 53.535045] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 53.601156] FAULT_INJECTION: forcing a failure. [ 53.601156] name failslab, interval 1, probability 0, space 0, times 0 [ 53.612645] CPU: 0 PID: 8599 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 53.620516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.629851] Call Trace: [ 53.632426] dump_stack+0x1fc/0x2ef [ 53.636042] should_fail.cold+0xa/0xf [ 53.639830] ? setup_fault_attr+0x200/0x200 [ 53.644179] ? lock_acquire+0x170/0x3c0 [ 53.648140] __should_failslab+0x115/0x180 [ 53.652359] should_failslab+0x5/0x10 [ 53.656142] kmem_cache_alloc+0x277/0x370 [ 53.660275] __d_alloc+0x2b/0xa10 [ 53.663714] d_alloc+0x4a/0x230 [ 53.666979] d_alloc_parallel+0xeb/0x19e0 [ 53.671116] ? mark_held_locks+0xf0/0xf0 [ 53.675162] ? __d_lookup_rcu+0x6b0/0x6b0 [ 53.679293] ? device_add+0xbf8/0x16d0 [ 53.683164] ? mark_held_locks+0xf0/0xf0 [ 53.687210] ? __lockdep_init_map+0x100/0x5a0 [ 53.691861] ? __lockdep_init_map+0x100/0x5a0 [ 53.696342] __lookup_slow+0x18d/0x4a0 [ 53.700214] ? check_preemption_disabled+0x41/0x280 [ 53.705214] ? follow_dotdot_rcu+0x1040/0x1040 [ 53.709781] ? __d_lookup+0x411/0x710 [ 53.713567] ? d_lookup+0x18e/0x250 [ 53.717180] lookup_one_len+0x163/0x190 [ 53.721146] ? try_lookup_one_len+0x180/0x180 [ 53.725628] start_creating+0xc9/0x220 [ 53.729499] debugfs_create_dir+0x1f/0x440 [ 53.733716] bdi_register_va.part.0+0x1f7/0x750 [ 53.738371] bdi_register+0x12a/0x140 [ 53.742166] ? bdi_register_va+0x80/0x80 [ 53.746215] ? vsnprintf+0x2cc/0x14f0 [ 53.750000] bdi_register_owner+0x59/0x100 [ 53.754225] __device_add_disk+0xd58/0x10c0 [ 53.758547] ? sprintf+0xc0/0x100 [ 53.761992] ? blk_alloc_devt+0x2d0/0x2d0 [ 53.766125] ? __raw_spin_lock_init+0x28/0x100 [ 53.770689] ? __lockdep_init_map+0x100/0x5a0 [ 53.775174] loop_add+0x628/0x8a0 [ 53.778613] loop_control_ioctl+0x16c/0x480 [ 53.782921] ? loop_lookup+0x1d0/0x1d0 [ 53.786793] ? __vfs_write+0xff/0x770 [ 53.790574] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 53.795485] ? common_file_perm+0x4e5/0x850 [ 53.799793] ? loop_lookup+0x1d0/0x1d0 [ 53.803664] do_vfs_ioctl+0xcdb/0x12e0 [ 53.807534] ? vfs_write+0x3d7/0x540 [ 53.811231] ? ioctl_preallocate+0x200/0x200 [ 53.815622] ? lock_downgrade+0x720/0x720 [ 53.819753] ? check_preemption_disabled+0x41/0x280 [ 53.824751] ? vfs_write+0x393/0x540 [ 53.828447] ? ksys_write+0x1c8/0x2a0 [ 53.832233] ksys_ioctl+0x9b/0xc0 [ 53.835672] __x64_sys_ioctl+0x6f/0xb0 [ 53.839541] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 53.844115] do_syscall_64+0xf9/0x620 [ 53.847903] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.853074] RIP: 0033:0x7fa6bb5cf079 [ 53.856800] 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 [ 53.875685] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.883379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 53.891069] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program executing program [ 53.898325] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 53.905577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 53.912828] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 53.971161] FAULT_INJECTION: forcing a failure. [ 53.971161] name failslab, interval 1, probability 0, space 0, times 0 [ 53.982745] CPU: 0 PID: 8610 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 53.990720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.000059] Call Trace: [ 54.002634] dump_stack+0x1fc/0x2ef [ 54.006255] should_fail.cold+0xa/0xf [ 54.010056] ? setup_fault_attr+0x200/0x200 [ 54.014366] ? lock_acquire+0x170/0x3c0 [ 54.018416] __should_failslab+0x115/0x180 [ 54.022635] should_failslab+0x5/0x10 [ 54.026421] kmem_cache_alloc+0x277/0x370 [ 54.030555] alloc_inode+0xab/0x180 [ 54.034167] new_inode+0x1d/0xf0 [ 54.037516] debugfs_get_inode+0x1a/0x130 [ 54.041661] debugfs_create_dir+0x73/0x440 [ 54.045883] bdi_register_va.part.0+0x1f7/0x750 [ 54.050535] bdi_register+0x12a/0x140 [ 54.054316] ? bdi_register_va+0x80/0x80 [ 54.058684] ? vsnprintf+0x2cc/0x14f0 [ 54.062479] bdi_register_owner+0x59/0x100 [ 54.066700] __device_add_disk+0xd58/0x10c0 [ 54.071015] ? sprintf+0xc0/0x100 [ 54.074452] ? blk_alloc_devt+0x2d0/0x2d0 [ 54.078590] ? __raw_spin_lock_init+0x28/0x100 [ 54.083161] ? __lockdep_init_map+0x100/0x5a0 [ 54.087644] loop_add+0x628/0x8a0 [ 54.091089] loop_control_ioctl+0x16c/0x480 [ 54.095398] ? loop_lookup+0x1d0/0x1d0 [ 54.099278] ? __vfs_write+0xff/0x770 [ 54.103064] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 54.107983] ? common_file_perm+0x4e5/0x850 [ 54.112323] ? loop_lookup+0x1d0/0x1d0 [ 54.116225] do_vfs_ioctl+0xcdb/0x12e0 [ 54.120098] ? vfs_write+0x3d7/0x540 [ 54.123801] ? ioctl_preallocate+0x200/0x200 [ 54.128205] ? lock_downgrade+0x720/0x720 [ 54.132345] ? check_preemption_disabled+0x41/0x280 [ 54.137356] ? vfs_write+0x393/0x540 [ 54.141055] ? ksys_write+0x1c8/0x2a0 [ 54.144838] ksys_ioctl+0x9b/0xc0 [ 54.148274] __x64_sys_ioctl+0x6f/0xb0 [ 54.152148] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 54.156717] do_syscall_64+0xf9/0x620 [ 54.160508] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.165678] RIP: 0033:0x7fa6bb5cf079 [ 54.169375] 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 [ 54.188257] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.195953] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 54.203212] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 54.210465] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 54.217715] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 54.224965] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 54.290700] FAULT_INJECTION: forcing a failure. [ 54.290700] name failslab, interval 1, probability 0, space 0, times 0 [ 54.302470] CPU: 0 PID: 8620 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 54.310344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.319686] Call Trace: [ 54.322256] dump_stack+0x1fc/0x2ef [ 54.325870] should_fail.cold+0xa/0xf [ 54.329655] ? setup_fault_attr+0x200/0x200 [ 54.333961] ? lock_acquire+0x170/0x3c0 [ 54.337927] __should_failslab+0x115/0x180 [ 54.342155] should_failslab+0x5/0x10 [ 54.345940] kmem_cache_alloc_trace+0x284/0x380 [ 54.350593] ? wait_for_completion_io+0x10/0x10 [ 54.355254] ? kobj_ns_initial+0x90/0x90 [ 54.359307] call_usermodehelper_setup+0x84/0x300 [ 54.364136] kobject_uevent_env+0xe83/0x1480 [ 54.368533] device_add+0xb2f/0x16d0 [ 54.372231] ? device_check_offline+0x280/0x280 [ 54.376893] ? kfree_const+0x51/0x60 [ 54.380590] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 54.385586] ? kfree+0x1e2/0x210 [ 54.388939] device_create_groups_vargs+0x1f4/0x270 [ 54.393937] device_create+0xdf/0x120 [ 54.397719] ? device_create_vargs+0x50/0x50 [ 54.402202] ? pointer+0x850/0x850 [ 54.405730] bdi_register_va.part.0+0x4c/0x750 [ 54.410295] bdi_register+0x12a/0x140 [ 54.414079] ? bdi_register_va+0x80/0x80 [ 54.418130] ? vsnprintf+0x2cc/0x14f0 [ 54.421917] bdi_register_owner+0x59/0x100 [ 54.426136] __device_add_disk+0xd58/0x10c0 [ 54.430444] ? sprintf+0xc0/0x100 [ 54.433880] ? blk_alloc_devt+0x2d0/0x2d0 [ 54.438016] ? __raw_spin_lock_init+0x28/0x100 [ 54.442581] ? __lockdep_init_map+0x100/0x5a0 [ 54.447069] loop_add+0x628/0x8a0 [ 54.450520] loop_control_ioctl+0x16c/0x480 [ 54.454833] ? loop_lookup+0x1d0/0x1d0 [ 54.458710] ? __vfs_write+0xff/0x770 [ 54.462502] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 54.467502] ? common_file_perm+0x4e5/0x850 [ 54.471809] ? loop_lookup+0x1d0/0x1d0 [ 54.475684] do_vfs_ioctl+0xcdb/0x12e0 [ 54.479617] ? vfs_write+0x3d7/0x540 [ 54.483316] ? ioctl_preallocate+0x200/0x200 [ 54.487714] ? lock_downgrade+0x720/0x720 [ 54.491854] ? check_preemption_disabled+0x41/0x280 [ 54.496860] ? vfs_write+0x393/0x540 [ 54.500560] ? ksys_write+0x1c8/0x2a0 [ 54.504346] ksys_ioctl+0x9b/0xc0 [ 54.507787] __x64_sys_ioctl+0x6f/0xb0 [ 54.511663] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 54.516229] do_syscall_64+0xf9/0x620 [ 54.520018] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.525193] RIP: 0033:0x7fa6bb5cf079 executing program [ 54.528892] 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 [ 54.547795] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.555485] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 54.562742] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 54.570000] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 54.577252] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 54.584592] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 54.641046] FAULT_INJECTION: forcing a failure. [ 54.641046] name failslab, interval 1, probability 0, space 0, times 0 [ 54.653102] CPU: 1 PID: 8628 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 54.660981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.670320] Call Trace: [ 54.672905] dump_stack+0x1fc/0x2ef [ 54.676518] should_fail.cold+0xa/0xf [ 54.680307] ? setup_fault_attr+0x200/0x200 [ 54.684623] ? lock_acquire+0x170/0x3c0 [ 54.688594] __should_failslab+0x115/0x180 [ 54.692818] should_failslab+0x5/0x10 [ 54.696648] kmem_cache_alloc_trace+0x284/0x380 [ 54.701307] ? wait_for_completion_io+0x10/0x10 [ 54.707617] ? kobj_ns_initial+0x90/0x90 [ 54.712169] call_usermodehelper_setup+0x84/0x300 [ 54.718614] kobject_uevent_env+0xe83/0x1480 [ 54.723013] device_add+0xb2f/0x16d0 [ 54.726714] ? device_check_offline+0x280/0x280 [ 54.731366] ? kfree_const+0x51/0x60 [ 54.735070] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 54.740072] ? kfree+0x1e2/0x210 [ 54.743426] device_create_groups_vargs+0x1f4/0x270 [ 54.748426] device_create+0xdf/0x120 [ 54.752209] ? device_create_vargs+0x50/0x50 [ 54.756603] ? pointer+0x850/0x850 [ 54.760138] bdi_register_va.part.0+0x4c/0x750 [ 54.764732] bdi_register+0x12a/0x140 [ 54.768518] ? bdi_register_va+0x80/0x80 [ 54.772566] ? vsnprintf+0x2cc/0x14f0 [ 54.776367] bdi_register_owner+0x59/0x100 [ 54.780588] __device_add_disk+0xd58/0x10c0 [ 54.784987] ? sprintf+0xc0/0x100 [ 54.788432] ? blk_alloc_devt+0x2d0/0x2d0 [ 54.792578] ? __raw_spin_lock_init+0x28/0x100 [ 54.797152] ? __lockdep_init_map+0x100/0x5a0 [ 54.801637] loop_add+0x628/0x8a0 [ 54.805081] loop_control_ioctl+0x16c/0x480 [ 54.809389] ? loop_lookup+0x1d0/0x1d0 [ 54.813264] ? __vfs_write+0xff/0x770 [ 54.817050] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 54.821966] ? common_file_perm+0x4e5/0x850 [ 54.826281] ? loop_lookup+0x1d0/0x1d0 [ 54.830160] do_vfs_ioctl+0xcdb/0x12e0 [ 54.834030] ? vfs_write+0x3d7/0x540 [ 54.838078] ? ioctl_preallocate+0x200/0x200 [ 54.842477] ? lock_downgrade+0x720/0x720 [ 54.846637] ? check_preemption_disabled+0x41/0x280 [ 54.851752] ? vfs_write+0x393/0x540 [ 54.855458] ? ksys_write+0x1c8/0x2a0 [ 54.859254] ksys_ioctl+0x9b/0xc0 [ 54.862694] __x64_sys_ioctl+0x6f/0xb0 [ 54.866570] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 54.871758] do_syscall_64+0xf9/0x620 [ 54.875549] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.880723] RIP: 0033:0x7fa6bb5cf079 [ 54.884422] 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 [ 54.903317] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.911014] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 54.918316] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 54.925577] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 54.932829] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program executing program [ 54.940093] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 55.000863] FAULT_INJECTION: forcing a failure. [ 55.000863] name failslab, interval 1, probability 0, space 0, times 0 [ 55.012422] CPU: 0 PID: 8636 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 55.020297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.029637] Call Trace: [ 55.032215] dump_stack+0x1fc/0x2ef [ 55.035834] should_fail.cold+0xa/0xf [ 55.039623] ? setup_fault_attr+0x200/0x200 [ 55.043930] ? lock_acquire+0x170/0x3c0 [ 55.047892] __should_failslab+0x115/0x180 [ 55.052120] should_failslab+0x5/0x10 [ 55.055922] kmem_cache_alloc_trace+0x284/0x380 [ 55.060578] ? wait_for_completion_io+0x10/0x10 [ 55.065242] ? kobj_ns_initial+0x90/0x90 [ 55.069291] call_usermodehelper_setup+0x84/0x300 [ 55.074122] kobject_uevent_env+0xe83/0x1480 [ 55.078521] device_add+0xb2f/0x16d0 [ 55.082222] ? device_check_offline+0x280/0x280 [ 55.086877] ? kfree_const+0x51/0x60 [ 55.090576] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 55.095582] ? kfree+0x1e2/0x210 [ 55.098938] device_create_groups_vargs+0x1f4/0x270 [ 55.103938] device_create+0xdf/0x120 [ 55.107768] ? device_create_vargs+0x50/0x50 [ 55.112164] ? pointer+0x850/0x850 [ 55.115692] bdi_register_va.part.0+0x4c/0x750 [ 55.120260] bdi_register+0x12a/0x140 [ 55.124045] ? bdi_register_va+0x80/0x80 [ 55.128094] ? vsnprintf+0x2cc/0x14f0 [ 55.131883] bdi_register_owner+0x59/0x100 [ 55.136105] __device_add_disk+0xd58/0x10c0 [ 55.140413] ? sprintf+0xc0/0x100 [ 55.143849] ? blk_alloc_devt+0x2d0/0x2d0 [ 55.147985] ? __raw_spin_lock_init+0x28/0x100 [ 55.152562] ? __lockdep_init_map+0x100/0x5a0 [ 55.157136] loop_add+0x628/0x8a0 [ 55.160584] loop_control_ioctl+0x16c/0x480 [ 55.164903] ? loop_lookup+0x1d0/0x1d0 [ 55.168785] ? __vfs_write+0xff/0x770 [ 55.172570] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 55.177489] ? common_file_perm+0x4e5/0x850 [ 55.181798] ? loop_lookup+0x1d0/0x1d0 [ 55.185671] do_vfs_ioctl+0xcdb/0x12e0 [ 55.189544] ? vfs_write+0x3d7/0x540 [ 55.193242] ? ioctl_preallocate+0x200/0x200 [ 55.197637] ? lock_downgrade+0x720/0x720 [ 55.201773] ? check_preemption_disabled+0x41/0x280 [ 55.206775] ? vfs_write+0x393/0x540 [ 55.210474] ? ksys_write+0x1c8/0x2a0 [ 55.214262] ksys_ioctl+0x9b/0xc0 [ 55.217722] __x64_sys_ioctl+0x6f/0xb0 [ 55.221598] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 55.226163] do_syscall_64+0xf9/0x620 [ 55.229950] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.235123] RIP: 0033:0x7fa6bb5cf079 [ 55.238829] 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 [ 55.258243] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.266077] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 55.273335] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 55.280590] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 55.287854] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 55.295114] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 executing program [ 55.350683] FAULT_INJECTION: forcing a failure. [ 55.350683] name failslab, interval 1, probability 0, space 0, times 0 [ 55.362373] CPU: 1 PID: 8644 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 55.370240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.379576] Call Trace: [ 55.382150] dump_stack+0x1fc/0x2ef [ 55.385800] should_fail.cold+0xa/0xf [ 55.389593] ? setup_fault_attr+0x200/0x200 [ 55.393897] ? lock_acquire+0x170/0x3c0 [ 55.397875] __should_failslab+0x115/0x180 [ 55.402098] should_failslab+0x5/0x10 [ 55.405880] kmem_cache_alloc+0x277/0x370 [ 55.410016] __d_alloc+0x2b/0xa10 [ 55.413589] d_alloc+0x4a/0x230 [ 55.416860] d_alloc_parallel+0xeb/0x19e0 [ 55.421002] ? mark_held_locks+0xf0/0xf0 [ 55.425050] ? __d_lookup_rcu+0x6b0/0x6b0 [ 55.429184] ? device_add+0xbf8/0x16d0 [ 55.433059] ? mark_held_locks+0xf0/0xf0 [ 55.437111] ? __lockdep_init_map+0x100/0x5a0 [ 55.441614] ? __lockdep_init_map+0x100/0x5a0 [ 55.446100] __lookup_slow+0x18d/0x4a0 [ 55.449975] ? check_preemption_disabled+0x41/0x280 [ 55.454983] ? follow_dotdot_rcu+0x1040/0x1040 [ 55.459643] ? __d_lookup+0x411/0x710 [ 55.463432] ? d_lookup+0x18e/0x250 [ 55.467049] lookup_one_len+0x163/0x190 [ 55.471131] ? try_lookup_one_len+0x180/0x180 [ 55.475623] start_creating+0xc9/0x220 [ 55.479504] debugfs_create_dir+0x1f/0x440 [ 55.483730] bdi_register_va.part.0+0x1f7/0x750 [ 55.488397] bdi_register+0x12a/0x140 [ 55.492186] ? bdi_register_va+0x80/0x80 [ 55.496235] ? vsnprintf+0x2cc/0x14f0 [ 55.500028] bdi_register_owner+0x59/0x100 [ 55.504251] __device_add_disk+0xd58/0x10c0 [ 55.508565] ? sprintf+0xc0/0x100 [ 55.512005] ? blk_alloc_devt+0x2d0/0x2d0 [ 55.516139] ? __raw_spin_lock_init+0x28/0x100 [ 55.520708] ? __lockdep_init_map+0x100/0x5a0 [ 55.525192] loop_add+0x628/0x8a0 [ 55.528643] loop_control_ioctl+0x16c/0x480 [ 55.532953] ? loop_lookup+0x1d0/0x1d0 [ 55.536838] ? __vfs_write+0xff/0x770 [ 55.540713] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 55.545714] ? common_file_perm+0x4e5/0x850 [ 55.550020] ? loop_lookup+0x1d0/0x1d0 [ 55.553982] do_vfs_ioctl+0xcdb/0x12e0 [ 55.557857] ? vfs_write+0x3d7/0x540 [ 55.561556] ? ioctl_preallocate+0x200/0x200 [ 55.565949] ? lock_downgrade+0x720/0x720 [ 55.570084] ? check_preemption_disabled+0x41/0x280 [ 55.575089] ? vfs_write+0x393/0x540 [ 55.578793] ? ksys_write+0x1c8/0x2a0 [ 55.582581] ksys_ioctl+0x9b/0xc0 [ 55.586022] __x64_sys_ioctl+0x6f/0xb0 [ 55.589899] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 55.594592] do_syscall_64+0xf9/0x620 [ 55.598385] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.603559] RIP: 0033:0x7fa6bb5cf079 [ 55.607256] 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 [ 55.626150] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.633854] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 55.641105] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 55.648360] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 55.655613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 55.662866] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 55.702142] FAULT_INJECTION: forcing a failure. [ 55.702142] name failslab, interval 1, probability 0, space 0, times 0 [ 55.714272] CPU: 1 PID: 8650 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 55.722157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.731495] Call Trace: [ 55.734070] dump_stack+0x1fc/0x2ef [ 55.737682] should_fail.cold+0xa/0xf [ 55.741467] ? setup_fault_attr+0x200/0x200 [ 55.745776] ? lock_acquire+0x170/0x3c0 [ 55.749764] __should_failslab+0x115/0x180 [ 55.753983] should_failslab+0x5/0x10 [ 55.757781] kmem_cache_alloc_trace+0x284/0x380 [ 55.762654] ? wait_for_completion_io+0x10/0x10 [ 55.767321] ? kobj_ns_initial+0x90/0x90 [ 55.771378] call_usermodehelper_setup+0x84/0x300 [ 55.776211] kobject_uevent_env+0xe83/0x1480 [ 55.780611] device_add+0xb2f/0x16d0 [ 55.784314] ? device_check_offline+0x280/0x280 [ 55.788966] ? kfree_const+0x51/0x60 [ 55.792668] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 55.797675] ? kfree+0x1e2/0x210 [ 55.801030] device_create_groups_vargs+0x1f4/0x270 [ 55.806035] device_create+0xdf/0x120 [ 55.809819] ? device_create_vargs+0x50/0x50 [ 55.814212] ? pointer+0x850/0x850 [ 55.817751] bdi_register_va.part.0+0x4c/0x750 [ 55.822320] bdi_register+0x12a/0x140 [ 55.826221] ? bdi_register_va+0x80/0x80 [ 55.830279] ? vsnprintf+0x2cc/0x14f0 [ 55.834064] bdi_register_owner+0x59/0x100 [ 55.838290] __device_add_disk+0xd58/0x10c0 [ 55.842608] ? sprintf+0xc0/0x100 [ 55.846051] ? blk_alloc_devt+0x2d0/0x2d0 [ 55.850214] ? __raw_spin_lock_init+0x28/0x100 [ 55.854851] ? __lockdep_init_map+0x100/0x5a0 [ 55.859332] loop_add+0x628/0x8a0 [ 55.862774] loop_control_ioctl+0x16c/0x480 [ 55.867084] ? loop_lookup+0x1d0/0x1d0 [ 55.870969] ? __vfs_write+0xff/0x770 [ 55.874755] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 55.879673] ? common_file_perm+0x4e5/0x850 [ 55.883984] ? loop_lookup+0x1d0/0x1d0 [ 55.887859] do_vfs_ioctl+0xcdb/0x12e0 [ 55.891734] ? vfs_write+0x3d7/0x540 [ 55.895431] ? ioctl_preallocate+0x200/0x200 [ 55.899952] ? lock_downgrade+0x720/0x720 [ 55.904085] ? check_preemption_disabled+0x41/0x280 [ 55.909083] ? vfs_write+0x393/0x540 [ 55.912779] ? ksys_write+0x1c8/0x2a0 [ 55.916694] ksys_ioctl+0x9b/0xc0 [ 55.920149] __x64_sys_ioctl+0x6f/0xb0 [ 55.924029] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 55.928600] do_syscall_64+0xf9/0x620 [ 55.932393] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.937681] RIP: 0033:0x7fa6bb5cf079 [ 55.941383] 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 [ 55.960273] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.967963] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 55.975214] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 55.982464] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 55.989824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program executing program [ 55.997161] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 56.060718] FAULT_INJECTION: forcing a failure. [ 56.060718] name failslab, interval 1, probability 0, space 0, times 0 [ 56.072513] CPU: 0 PID: 8660 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 56.080384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.089720] Call Trace: [ 56.092298] dump_stack+0x1fc/0x2ef [ 56.095999] should_fail.cold+0xa/0xf [ 56.099785] ? setup_fault_attr+0x200/0x200 [ 56.104087] ? lock_acquire+0x170/0x3c0 [ 56.108047] __should_failslab+0x115/0x180 [ 56.112278] should_failslab+0x5/0x10 [ 56.116064] kmem_cache_alloc+0x277/0x370 [ 56.120196] alloc_inode+0xab/0x180 [ 56.123806] new_inode+0x1d/0xf0 [ 56.127166] debugfs_get_inode+0x1a/0x130 [ 56.131303] debugfs_create_dir+0x73/0x440 [ 56.135522] bdi_register_va.part.0+0x1f7/0x750 [ 56.140259] bdi_register+0x12a/0x140 [ 56.144047] ? bdi_register_va+0x80/0x80 [ 56.148098] ? vsnprintf+0x2cc/0x14f0 [ 56.151903] bdi_register_owner+0x59/0x100 [ 56.156136] __device_add_disk+0xd58/0x10c0 [ 56.160442] ? sprintf+0xc0/0x100 [ 56.163877] ? blk_alloc_devt+0x2d0/0x2d0 [ 56.168008] ? __raw_spin_lock_init+0x28/0x100 [ 56.172571] ? __lockdep_init_map+0x100/0x5a0 [ 56.177052] loop_add+0x628/0x8a0 [ 56.180491] loop_control_ioctl+0x16c/0x480 [ 56.184792] ? loop_lookup+0x1d0/0x1d0 [ 56.188664] ? __vfs_write+0xff/0x770 [ 56.192446] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 56.197358] ? common_file_perm+0x4e5/0x850 [ 56.201665] ? loop_lookup+0x1d0/0x1d0 [ 56.205534] do_vfs_ioctl+0xcdb/0x12e0 [ 56.209403] ? vfs_write+0x3d7/0x540 [ 56.213098] ? ioctl_preallocate+0x200/0x200 [ 56.217485] ? lock_downgrade+0x720/0x720 [ 56.221616] ? check_preemption_disabled+0x41/0x280 [ 56.226624] ? vfs_write+0x393/0x540 [ 56.230327] ? ksys_write+0x1c8/0x2a0 [ 56.234108] ksys_ioctl+0x9b/0xc0 [ 56.237555] __x64_sys_ioctl+0x6f/0xb0 [ 56.241436] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 56.246000] do_syscall_64+0xf9/0x620 [ 56.249785] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.254956] RIP: 0033:0x7fa6bb5cf079 [ 56.258651] 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 [ 56.277531] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 56.285222] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 56.292473] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 56.299729] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program executing program [ 56.306981] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 56.314232] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 56.370599] FAULT_INJECTION: forcing a failure. [ 56.370599] name failslab, interval 1, probability 0, space 0, times 0 [ 56.382521] CPU: 1 PID: 8671 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 56.390394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.399730] Call Trace: [ 56.402310] dump_stack+0x1fc/0x2ef [ 56.405919] should_fail.cold+0xa/0xf [ 56.409706] ? setup_fault_attr+0x200/0x200 [ 56.414017] ? lock_acquire+0x170/0x3c0 [ 56.417977] __should_failslab+0x115/0x180 [ 56.422198] should_failslab+0x5/0x10 [ 56.425998] kmem_cache_alloc_trace+0x284/0x380 [ 56.430755] ? wait_for_completion_io+0x10/0x10 [ 56.435943] ? kobj_ns_initial+0x90/0x90 [ 56.440001] call_usermodehelper_setup+0x84/0x300 [ 56.444832] kobject_uevent_env+0xe83/0x1480 [ 56.449233] device_add+0xb2f/0x16d0 [ 56.452930] ? device_check_offline+0x280/0x280 [ 56.457579] ? kfree_const+0x51/0x60 [ 56.461272] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 56.466271] ? kfree+0x1e2/0x210 [ 56.469621] device_create_groups_vargs+0x1f4/0x270 [ 56.474642] device_create+0xdf/0x120 [ 56.478424] ? device_create_vargs+0x50/0x50 [ 56.482840] ? pointer+0x850/0x850 [ 56.486367] bdi_register_va.part.0+0x4c/0x750 [ 56.490935] bdi_register+0x12a/0x140 [ 56.494715] ? bdi_register_va+0x80/0x80 [ 56.498768] ? vsnprintf+0x2cc/0x14f0 [ 56.502555] bdi_register_owner+0x59/0x100 [ 56.506771] __device_add_disk+0xd58/0x10c0 [ 56.511074] ? sprintf+0xc0/0x100 [ 56.514507] ? blk_alloc_devt+0x2d0/0x2d0 [ 56.518640] ? __raw_spin_lock_init+0x28/0x100 [ 56.523206] ? __lockdep_init_map+0x100/0x5a0 [ 56.527686] loop_add+0x628/0x8a0 [ 56.531128] loop_control_ioctl+0x16c/0x480 [ 56.535438] ? loop_lookup+0x1d0/0x1d0 [ 56.539318] ? __vfs_write+0xff/0x770 [ 56.543110] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 56.548029] ? common_file_perm+0x4e5/0x850 [ 56.552329] ? loop_lookup+0x1d0/0x1d0 [ 56.556208] do_vfs_ioctl+0xcdb/0x12e0 [ 56.560085] ? vfs_write+0x3d7/0x540 [ 56.563781] ? ioctl_preallocate+0x200/0x200 [ 56.568172] ? lock_downgrade+0x720/0x720 [ 56.572321] ? check_preemption_disabled+0x41/0x280 [ 56.577322] ? vfs_write+0x393/0x540 [ 56.581017] ? ksys_write+0x1c8/0x2a0 [ 56.584800] ksys_ioctl+0x9b/0xc0 [ 56.588245] __x64_sys_ioctl+0x6f/0xb0 [ 56.592114] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 56.596684] do_syscall_64+0xf9/0x620 [ 56.600468] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.605637] RIP: 0033:0x7fa6bb5cf079 [ 56.609332] 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 [ 56.628219] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 56.635914] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 56.643183] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 56.650435] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 56.657687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 56.664941] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 executing program [ 56.730166] FAULT_INJECTION: forcing a failure. [ 56.730166] name failslab, interval 1, probability 0, space 0, times 0 [ 56.742816] CPU: 0 PID: 8679 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 56.750723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.760071] Call Trace: [ 56.762646] dump_stack+0x1fc/0x2ef [ 56.766257] should_fail.cold+0xa/0xf [ 56.770051] ? setup_fault_attr+0x200/0x200 [ 56.774352] ? lock_acquire+0x170/0x3c0 [ 56.778308] __should_failslab+0x115/0x180 [ 56.782524] should_failslab+0x5/0x10 [ 56.786305] kmem_cache_alloc+0x277/0x370 [ 56.790438] __d_alloc+0x2b/0xa10 [ 56.793876] d_alloc+0x4a/0x230 [ 56.797137] d_alloc_parallel+0xeb/0x19e0 [ 56.801269] ? mark_held_locks+0xf0/0xf0 [ 56.805356] ? __d_lookup_rcu+0x6b0/0x6b0 [ 56.809483] ? device_add+0xbf8/0x16d0 [ 56.813355] ? mark_held_locks+0xf0/0xf0 [ 56.817401] ? __lockdep_init_map+0x100/0x5a0 [ 56.821879] ? __lockdep_init_map+0x100/0x5a0 [ 56.826361] __lookup_slow+0x18d/0x4a0 [ 56.830235] ? check_preemption_disabled+0x41/0x280 [ 56.835230] ? follow_dotdot_rcu+0x1040/0x1040 [ 56.839794] ? __d_lookup+0x411/0x710 [ 56.843578] ? d_lookup+0x18e/0x250 [ 56.847190] lookup_one_len+0x163/0x190 [ 56.851202] ? try_lookup_one_len+0x180/0x180 [ 56.855693] start_creating+0xc9/0x220 [ 56.859563] debugfs_create_dir+0x1f/0x440 [ 56.863779] bdi_register_va.part.0+0x1f7/0x750 [ 56.868428] bdi_register+0x12a/0x140 [ 56.872207] ? bdi_register_va+0x80/0x80 [ 56.876250] ? vsnprintf+0x2cc/0x14f0 [ 56.880053] bdi_register_owner+0x59/0x100 [ 56.884269] __device_add_disk+0xd58/0x10c0 [ 56.888571] ? sprintf+0xc0/0x100 [ 56.892003] ? blk_alloc_devt+0x2d0/0x2d0 [ 56.896133] ? __raw_spin_lock_init+0x28/0x100 [ 56.901132] ? __lockdep_init_map+0x100/0x5a0 [ 56.905609] loop_add+0x628/0x8a0 [ 56.909047] loop_control_ioctl+0x16c/0x480 [ 56.913348] ? loop_lookup+0x1d0/0x1d0 [ 56.917217] ? __vfs_write+0xff/0x770 [ 56.920998] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 56.925907] ? common_file_perm+0x4e5/0x850 [ 56.930206] ? loop_lookup+0x1d0/0x1d0 [ 56.934077] do_vfs_ioctl+0xcdb/0x12e0 [ 56.937944] ? vfs_write+0x3d7/0x540 [ 56.941637] ? ioctl_preallocate+0x200/0x200 [ 56.946046] ? lock_downgrade+0x720/0x720 [ 56.950190] ? check_preemption_disabled+0x41/0x280 [ 56.955203] ? vfs_write+0x393/0x540 [ 56.958913] ? ksys_write+0x1c8/0x2a0 [ 56.962697] ksys_ioctl+0x9b/0xc0 [ 56.966192] __x64_sys_ioctl+0x6f/0xb0 [ 56.970068] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 56.974628] do_syscall_64+0xf9/0x620 [ 56.978412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.983582] RIP: 0033:0x7fa6bb5cf079 [ 56.987387] 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 [ 57.006277] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.013970] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 57.021221] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program [ 57.028471] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 57.035720] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 57.042974] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 57.090486] FAULT_INJECTION: forcing a failure. [ 57.090486] name failslab, interval 1, probability 0, space 0, times 0 [ 57.102568] CPU: 1 PID: 8687 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 57.110444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.119780] Call Trace: [ 57.122355] dump_stack+0x1fc/0x2ef [ 57.125968] should_fail.cold+0xa/0xf [ 57.129754] ? setup_fault_attr+0x200/0x200 [ 57.134061] ? lock_acquire+0x170/0x3c0 [ 57.138021] __should_failslab+0x115/0x180 [ 57.142236] should_failslab+0x5/0x10 [ 57.146021] kmem_cache_alloc_trace+0x284/0x380 [ 57.150666] ? wait_for_completion_io+0x10/0x10 [ 57.155318] ? kobj_ns_initial+0x90/0x90 [ 57.159359] call_usermodehelper_setup+0x84/0x300 [ 57.164186] kobject_uevent_env+0xe83/0x1480 [ 57.168582] device_add+0xb2f/0x16d0 [ 57.172279] ? device_check_offline+0x280/0x280 [ 57.176930] ? kfree_const+0x51/0x60 [ 57.180620] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 57.185616] ? kfree+0x1e2/0x210 [ 57.189052] device_create_groups_vargs+0x1f4/0x270 [ 57.194058] device_create+0xdf/0x120 [ 57.197838] ? device_create_vargs+0x50/0x50 [ 57.202249] ? pointer+0x850/0x850 [ 57.205789] bdi_register_va.part.0+0x4c/0x750 [ 57.210364] bdi_register+0x12a/0x140 [ 57.214149] ? bdi_register_va+0x80/0x80 [ 57.218203] ? vsnprintf+0x2cc/0x14f0 [ 57.221989] bdi_register_owner+0x59/0x100 [ 57.226216] __device_add_disk+0xd58/0x10c0 [ 57.230538] ? sprintf+0xc0/0x100 [ 57.233975] ? blk_alloc_devt+0x2d0/0x2d0 [ 57.238110] ? __raw_spin_lock_init+0x28/0x100 [ 57.242677] ? __lockdep_init_map+0x100/0x5a0 [ 57.247161] loop_add+0x628/0x8a0 [ 57.250596] loop_control_ioctl+0x16c/0x480 [ 57.254906] ? loop_lookup+0x1d0/0x1d0 [ 57.258775] ? __vfs_write+0xff/0x770 [ 57.262558] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 57.267468] ? common_file_perm+0x4e5/0x850 [ 57.271773] ? loop_lookup+0x1d0/0x1d0 [ 57.275700] do_vfs_ioctl+0xcdb/0x12e0 [ 57.279571] ? vfs_write+0x3d7/0x540 [ 57.283265] ? ioctl_preallocate+0x200/0x200 [ 57.287651] ? lock_downgrade+0x720/0x720 [ 57.291788] ? check_preemption_disabled+0x41/0x280 [ 57.296789] ? vfs_write+0x393/0x540 [ 57.300495] ? ksys_write+0x1c8/0x2a0 [ 57.304278] ksys_ioctl+0x9b/0xc0 [ 57.307719] __x64_sys_ioctl+0x6f/0xb0 [ 57.311596] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 57.316158] do_syscall_64+0xf9/0x620 [ 57.319946] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.325117] RIP: 0033:0x7fa6bb5cf079 executing program [ 57.328814] 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 [ 57.347817] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.355509] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 57.362760] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 57.370010] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 57.377258] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 57.384507] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 57.450842] FAULT_INJECTION: forcing a failure. [ 57.450842] name failslab, interval 1, probability 0, space 0, times 0 [ 57.462355] CPU: 1 PID: 8694 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 57.470226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.479559] Call Trace: [ 57.482138] dump_stack+0x1fc/0x2ef [ 57.485755] should_fail.cold+0xa/0xf [ 57.489539] ? setup_fault_attr+0x200/0x200 [ 57.493844] ? lock_acquire+0x170/0x3c0 [ 57.497802] __should_failslab+0x115/0x180 [ 57.502019] should_failslab+0x5/0x10 [ 57.505801] kmem_cache_alloc_trace+0x284/0x380 [ 57.510446] ? wait_for_completion_io+0x10/0x10 [ 57.515098] ? kobj_ns_initial+0x90/0x90 [ 57.519144] call_usermodehelper_setup+0x84/0x300 [ 57.523975] kobject_uevent_env+0xe83/0x1480 [ 57.528370] device_add+0xb2f/0x16d0 [ 57.532065] ? device_check_offline+0x280/0x280 [ 57.536720] ? kfree_const+0x51/0x60 [ 57.540425] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 57.545418] ? kfree+0x1e2/0x210 [ 57.548776] device_create_groups_vargs+0x1f4/0x270 [ 57.553780] device_create+0xdf/0x120 [ 57.557559] ? device_create_vargs+0x50/0x50 [ 57.561949] ? pointer+0x850/0x850 [ 57.565475] bdi_register_va.part.0+0x4c/0x750 [ 57.570040] bdi_register+0x12a/0x140 [ 57.573823] ? bdi_register_va+0x80/0x80 [ 57.577871] ? vsnprintf+0x2cc/0x14f0 [ 57.581652] bdi_register_owner+0x59/0x100 [ 57.585874] __device_add_disk+0xd58/0x10c0 [ 57.590197] ? sprintf+0xc0/0x100 [ 57.593638] ? blk_alloc_devt+0x2d0/0x2d0 [ 57.597768] ? __raw_spin_lock_init+0x28/0x100 [ 57.602329] ? __lockdep_init_map+0x100/0x5a0 [ 57.606807] loop_add+0x628/0x8a0 [ 57.610241] loop_control_ioctl+0x16c/0x480 [ 57.614562] ? loop_lookup+0x1d0/0x1d0 [ 57.618434] ? __vfs_write+0xff/0x770 [ 57.622215] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 57.627122] ? common_file_perm+0x4e5/0x850 [ 57.631428] ? loop_lookup+0x1d0/0x1d0 [ 57.635299] do_vfs_ioctl+0xcdb/0x12e0 [ 57.639167] ? vfs_write+0x3d7/0x540 [ 57.642862] ? ioctl_preallocate+0x200/0x200 [ 57.647250] ? lock_downgrade+0x720/0x720 [ 57.651387] ? check_preemption_disabled+0x41/0x280 [ 57.656384] ? vfs_write+0x393/0x540 [ 57.660089] ? ksys_write+0x1c8/0x2a0 [ 57.663875] ksys_ioctl+0x9b/0xc0 [ 57.667308] __x64_sys_ioctl+0x6f/0xb0 [ 57.671179] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 57.675742] do_syscall_64+0xf9/0x620 [ 57.679523] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.684720] RIP: 0033:0x7fa6bb5cf079 executing program executing program [ 57.688413] 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 [ 57.707293] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.714980] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 57.722232] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 57.729481] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 57.736745] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 57.743994] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 57.810020] FAULT_INJECTION: forcing a failure. [ 57.810020] name failslab, interval 1, probability 0, space 0, times 0 [ 57.821731] CPU: 1 PID: 8703 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 57.829608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.838948] Call Trace: [ 57.841522] dump_stack+0x1fc/0x2ef [ 57.845134] should_fail.cold+0xa/0xf [ 57.848944] ? setup_fault_attr+0x200/0x200 [ 57.853247] ? lock_acquire+0x170/0x3c0 [ 57.857207] __should_failslab+0x115/0x180 [ 57.861429] should_failslab+0x5/0x10 [ 57.865215] kmem_cache_alloc_trace+0x284/0x380 [ 57.869870] ? wait_for_completion_io+0x10/0x10 [ 57.874527] ? kobj_ns_initial+0x90/0x90 [ 57.878572] call_usermodehelper_setup+0x84/0x300 [ 57.883399] kobject_uevent_env+0xe83/0x1480 [ 57.887797] device_add+0xb2f/0x16d0 [ 57.891492] ? device_check_offline+0x280/0x280 [ 57.896137] ? kfree_const+0x51/0x60 [ 57.899863] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 57.904858] ? kfree+0x1e2/0x210 [ 57.908207] device_create_groups_vargs+0x1f4/0x270 [ 57.913206] device_create+0xdf/0x120 [ 57.916989] ? device_create_vargs+0x50/0x50 [ 57.921382] ? pointer+0x850/0x850 [ 57.924904] bdi_register_va.part.0+0x4c/0x750 [ 57.929466] bdi_register+0x12a/0x140 [ 57.933245] ? bdi_register_va+0x80/0x80 [ 57.937291] ? vsnprintf+0x2cc/0x14f0 [ 57.941083] bdi_register_owner+0x59/0x100 [ 57.945308] __device_add_disk+0xd58/0x10c0 [ 57.949610] ? sprintf+0xc0/0x100 [ 57.953045] ? blk_alloc_devt+0x2d0/0x2d0 [ 57.957172] ? __raw_spin_lock_init+0x28/0x100 [ 57.961733] ? __lockdep_init_map+0x100/0x5a0 [ 57.966298] loop_add+0x628/0x8a0 [ 57.969736] loop_control_ioctl+0x16c/0x480 [ 57.974037] ? loop_lookup+0x1d0/0x1d0 [ 57.977924] ? __vfs_write+0xff/0x770 [ 57.981709] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 57.986621] ? common_file_perm+0x4e5/0x850 [ 57.990921] ? loop_lookup+0x1d0/0x1d0 [ 57.994788] do_vfs_ioctl+0xcdb/0x12e0 [ 57.998654] ? vfs_write+0x3d7/0x540 [ 58.002348] ? ioctl_preallocate+0x200/0x200 [ 58.006742] ? lock_downgrade+0x720/0x720 [ 58.010880] ? check_preemption_disabled+0x41/0x280 [ 58.015877] ? vfs_write+0x393/0x540 [ 58.019570] ? ksys_write+0x1c8/0x2a0 [ 58.023351] ksys_ioctl+0x9b/0xc0 [ 58.026786] __x64_sys_ioctl+0x6f/0xb0 [ 58.030658] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 58.035231] do_syscall_64+0xf9/0x620 [ 58.039017] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.044184] RIP: 0033:0x7fa6bb5cf079 executing program executing program [ 58.047880] 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 [ 58.066769] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 58.074455] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 58.081701] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 58.088951] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 58.096239] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 58.103493] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 58.170385] FAULT_INJECTION: forcing a failure. [ 58.170385] name failslab, interval 1, probability 0, space 0, times 0 [ 58.184458] CPU: 0 PID: 8712 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 58.192451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.201784] Call Trace: [ 58.204362] dump_stack+0x1fc/0x2ef [ 58.207975] should_fail.cold+0xa/0xf [ 58.211761] ? setup_fault_attr+0x200/0x200 [ 58.216067] ? lock_acquire+0x170/0x3c0 [ 58.220035] __should_failslab+0x115/0x180 [ 58.224278] should_failslab+0x5/0x10 [ 58.228072] kmem_cache_alloc_trace+0x284/0x380 [ 58.232733] ? wait_for_completion_io+0x10/0x10 [ 58.237401] ? kobj_ns_initial+0x90/0x90 [ 58.241449] call_usermodehelper_setup+0x84/0x300 [ 58.246276] kobject_uevent_env+0xe83/0x1480 [ 58.250673] device_add+0xb2f/0x16d0 [ 58.254370] ? device_check_offline+0x280/0x280 [ 58.259021] ? kfree_const+0x51/0x60 [ 58.262713] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 58.267708] ? kfree+0x1e2/0x210 [ 58.271057] device_create_groups_vargs+0x1f4/0x270 [ 58.276055] device_create+0xdf/0x120 [ 58.279839] ? device_create_vargs+0x50/0x50 [ 58.284253] ? pointer+0x850/0x850 [ 58.287782] bdi_register_va.part.0+0x4c/0x750 [ 58.292347] bdi_register+0x12a/0x140 [ 58.296131] ? bdi_register_va+0x80/0x80 [ 58.300174] ? vsnprintf+0x2cc/0x14f0 [ 58.303958] bdi_register_owner+0x59/0x100 [ 58.308172] __device_add_disk+0xd58/0x10c0 [ 58.312474] ? sprintf+0xc0/0x100 [ 58.315911] ? blk_alloc_devt+0x2d0/0x2d0 [ 58.320042] ? __raw_spin_lock_init+0x28/0x100 [ 58.324621] ? __lockdep_init_map+0x100/0x5a0 [ 58.329104] loop_add+0x628/0x8a0 [ 58.332538] loop_control_ioctl+0x16c/0x480 [ 58.336841] ? loop_lookup+0x1d0/0x1d0 [ 58.340708] ? __vfs_write+0xff/0x770 [ 58.344487] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 58.349400] ? common_file_perm+0x4e5/0x850 [ 58.353703] ? loop_lookup+0x1d0/0x1d0 [ 58.357569] do_vfs_ioctl+0xcdb/0x12e0 [ 58.361438] ? vfs_write+0x3d7/0x540 [ 58.365130] ? ioctl_preallocate+0x200/0x200 [ 58.369523] ? lock_downgrade+0x720/0x720 [ 58.373657] ? check_preemption_disabled+0x41/0x280 [ 58.378656] ? vfs_write+0x393/0x540 [ 58.382349] ? ksys_write+0x1c8/0x2a0 [ 58.386133] ksys_ioctl+0x9b/0xc0 [ 58.389566] __x64_sys_ioctl+0x6f/0xb0 [ 58.393436] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 58.397997] do_syscall_64+0xf9/0x620 [ 58.401778] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.406945] RIP: 0033:0x7fa6bb5cf079 [ 58.410641] 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 [ 58.429520] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 58.437207] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 58.444456] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 58.451703] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 58.458967] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 58.466285] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 58.530266] FAULT_INJECTION: forcing a failure. [ 58.530266] name failslab, interval 1, probability 0, space 0, times 0 [ 58.543835] CPU: 0 PID: 8720 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 58.551725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.561061] Call Trace: [ 58.563632] dump_stack+0x1fc/0x2ef [ 58.567240] should_fail.cold+0xa/0xf [ 58.571022] ? setup_fault_attr+0x200/0x200 [ 58.575329] ? lock_acquire+0x170/0x3c0 [ 58.579289] __should_failslab+0x115/0x180 [ 58.583506] should_failslab+0x5/0x10 [ 58.587285] kmem_cache_alloc_trace+0x284/0x380 [ 58.591933] ? wait_for_completion_io+0x10/0x10 [ 58.596582] ? kobj_ns_initial+0x90/0x90 [ 58.600622] call_usermodehelper_setup+0x84/0x300 [ 58.605449] kobject_uevent_env+0xe83/0x1480 [ 58.609844] device_add+0xb2f/0x16d0 [ 58.613539] ? device_check_offline+0x280/0x280 [ 58.618189] ? kfree_const+0x51/0x60 [ 58.621884] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 58.626881] ? kfree+0x1e2/0x210 [ 58.630231] device_create_groups_vargs+0x1f4/0x270 [ 58.635225] device_create+0xdf/0x120 [ 58.639005] ? device_create_vargs+0x50/0x50 [ 58.643396] ? pointer+0x850/0x850 [ 58.646924] bdi_register_va.part.0+0x4c/0x750 [ 58.651486] bdi_register+0x12a/0x140 [ 58.655264] ? bdi_register_va+0x80/0x80 [ 58.659305] ? vsnprintf+0x2cc/0x14f0 [ 58.663087] bdi_register_owner+0x59/0x100 [ 58.667301] __device_add_disk+0xd58/0x10c0 [ 58.671603] ? sprintf+0xc0/0x100 [ 58.675039] ? blk_alloc_devt+0x2d0/0x2d0 [ 58.679169] ? __raw_spin_lock_init+0x28/0x100 [ 58.683732] ? __lockdep_init_map+0x100/0x5a0 [ 58.688212] loop_add+0x628/0x8a0 [ 58.691646] loop_control_ioctl+0x16c/0x480 [ 58.695947] ? loop_lookup+0x1d0/0x1d0 [ 58.699815] ? __vfs_write+0xff/0x770 [ 58.703593] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 58.708502] ? common_file_perm+0x4e5/0x850 [ 58.712808] ? loop_lookup+0x1d0/0x1d0 [ 58.716674] do_vfs_ioctl+0xcdb/0x12e0 [ 58.720543] ? vfs_write+0x3d7/0x540 [ 58.724235] ? ioctl_preallocate+0x200/0x200 [ 58.728622] ? lock_downgrade+0x720/0x720 [ 58.732752] ? check_preemption_disabled+0x41/0x280 [ 58.737753] ? vfs_write+0x393/0x540 [ 58.741456] ? ksys_write+0x1c8/0x2a0 [ 58.745237] ksys_ioctl+0x9b/0xc0 [ 58.748669] __x64_sys_ioctl+0x6f/0xb0 [ 58.752544] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 58.757364] do_syscall_64+0xf9/0x620 [ 58.761149] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.766315] RIP: 0033:0x7fa6bb5cf079 [ 58.770011] 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 [ 58.788890] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 58.796579] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 58.803830] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 58.811080] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 58.818326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 58.825571] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 58.891662] FAULT_INJECTION: forcing a failure. [ 58.891662] name failslab, interval 1, probability 0, space 0, times 0 [ 58.902927] CPU: 1 PID: 8727 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 58.910806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.920141] Call Trace: [ 58.922714] dump_stack+0x1fc/0x2ef [ 58.926326] should_fail.cold+0xa/0xf [ 58.930111] ? setup_fault_attr+0x200/0x200 [ 58.934418] ? lock_acquire+0x170/0x3c0 [ 58.938377] __should_failslab+0x115/0x180 [ 58.942598] should_failslab+0x5/0x10 [ 58.946376] kmem_cache_alloc+0x277/0x370 [ 58.950508] alloc_inode+0xab/0x180 [ 58.954111] new_inode+0x1d/0xf0 [ 58.957454] debugfs_get_inode+0x1a/0x130 [ 58.961586] debugfs_create_dir+0x73/0x440 [ 58.965808] bdi_register_va.part.0+0x1f7/0x750 [ 58.970457] bdi_register+0x12a/0x140 [ 58.974238] ? bdi_register_va+0x80/0x80 [ 58.978282] ? vsnprintf+0x2cc/0x14f0 [ 58.982063] bdi_register_owner+0x59/0x100 [ 58.986280] __device_add_disk+0xd58/0x10c0 [ 58.990589] ? sprintf+0xc0/0x100 [ 58.994022] ? blk_alloc_devt+0x2d0/0x2d0 [ 58.998152] ? __raw_spin_lock_init+0x28/0x100 [ 59.002715] ? __lockdep_init_map+0x100/0x5a0 [ 59.007195] loop_add+0x628/0x8a0 [ 59.010639] loop_control_ioctl+0x16c/0x480 [ 59.014940] ? loop_lookup+0x1d0/0x1d0 [ 59.018812] ? __vfs_write+0xff/0x770 [ 59.022592] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 59.027502] ? common_file_perm+0x4e5/0x850 [ 59.031804] ? loop_lookup+0x1d0/0x1d0 [ 59.035672] do_vfs_ioctl+0xcdb/0x12e0 [ 59.039541] ? vfs_write+0x3d7/0x540 [ 59.043238] ? ioctl_preallocate+0x200/0x200 [ 59.047628] ? lock_downgrade+0x720/0x720 [ 59.051759] ? check_preemption_disabled+0x41/0x280 [ 59.056757] ? vfs_write+0x393/0x540 [ 59.060465] ? ksys_write+0x1c8/0x2a0 [ 59.064288] ksys_ioctl+0x9b/0xc0 [ 59.067732] __x64_sys_ioctl+0x6f/0xb0 [ 59.071606] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 59.076166] do_syscall_64+0xf9/0x620 [ 59.079948] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.085115] RIP: 0033:0x7fa6bb5cf079 [ 59.088810] 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 [ 59.107696] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 59.115399] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 59.122650] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 59.129908] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program [ 59.137164] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 59.144419] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 59.189915] FAULT_INJECTION: forcing a failure. [ 59.189915] name failslab, interval 1, probability 0, space 0, times 0 [ 59.202086] CPU: 1 PID: 8736 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 59.209969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.219308] Call Trace: [ 59.221896] dump_stack+0x1fc/0x2ef [ 59.225523] should_fail.cold+0xa/0xf [ 59.229308] ? setup_fault_attr+0x200/0x200 [ 59.233612] ? lock_acquire+0x170/0x3c0 [ 59.237573] __should_failslab+0x115/0x180 [ 59.241792] should_failslab+0x5/0x10 [ 59.245576] kmem_cache_alloc+0x277/0x370 [ 59.249708] __d_alloc+0x2b/0xa10 [ 59.253145] ? lock_downgrade+0x720/0x720 [ 59.257317] ? lock_acquire+0x170/0x3c0 [ 59.261281] d_alloc+0x4a/0x230 [ 59.264562] d_alloc_parallel+0xeb/0x19e0 [ 59.268704] ? mark_held_locks+0xf0/0xf0 [ 59.272744] ? __lock_acquire+0x6de/0x3ff0 [ 59.276958] ? __d_lookup_rcu+0x6b0/0x6b0 [ 59.281081] ? mark_held_locks+0xf0/0xf0 [ 59.285124] ? mark_held_locks+0xf0/0xf0 [ 59.289195] ? __lockdep_init_map+0x100/0x5a0 [ 59.293670] ? __lockdep_init_map+0x100/0x5a0 [ 59.298180] __lookup_slow+0x18d/0x4a0 [ 59.302052] ? check_preemption_disabled+0x41/0x280 [ 59.307049] ? follow_dotdot_rcu+0x1040/0x1040 [ 59.311703] ? __d_lookup+0x411/0x710 [ 59.315495] ? d_lookup+0x18e/0x250 [ 59.319105] lookup_one_len+0x163/0x190 [ 59.323062] ? try_lookup_one_len+0x180/0x180 [ 59.327541] start_creating+0xc9/0x220 [ 59.331409] __debugfs_create_file+0x5e/0x480 [ 59.335885] bdi_register_va.part.0+0x24b/0x750 [ 59.340535] bdi_register+0x12a/0x140 [ 59.344322] ? bdi_register_va+0x80/0x80 [ 59.348370] ? vsnprintf+0x2cc/0x14f0 [ 59.352178] bdi_register_owner+0x59/0x100 [ 59.356489] __device_add_disk+0xd58/0x10c0 [ 59.360794] ? sprintf+0xc0/0x100 [ 59.364233] ? blk_alloc_devt+0x2d0/0x2d0 [ 59.368370] ? __raw_spin_lock_init+0x28/0x100 [ 59.372934] ? __lockdep_init_map+0x100/0x5a0 [ 59.377413] loop_add+0x628/0x8a0 [ 59.380851] loop_control_ioctl+0x16c/0x480 [ 59.385153] ? loop_lookup+0x1d0/0x1d0 [ 59.389023] ? __vfs_write+0xff/0x770 [ 59.392802] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 59.397710] ? common_file_perm+0x4e5/0x850 [ 59.402009] ? loop_lookup+0x1d0/0x1d0 [ 59.405879] do_vfs_ioctl+0xcdb/0x12e0 [ 59.409751] ? vfs_write+0x3d7/0x540 [ 59.413446] ? ioctl_preallocate+0x200/0x200 [ 59.417838] ? lock_downgrade+0x720/0x720 [ 59.421968] ? check_preemption_disabled+0x41/0x280 [ 59.426969] ? vfs_write+0x393/0x540 [ 59.430664] ? ksys_write+0x1c8/0x2a0 [ 59.434445] ksys_ioctl+0x9b/0xc0 [ 59.437880] __x64_sys_ioctl+0x6f/0xb0 [ 59.441748] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 59.446329] do_syscall_64+0xf9/0x620 [ 59.450116] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.455283] RIP: 0033:0x7fa6bb5cf079 [ 59.458975] 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 [ 59.477861] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 59.485547] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 59.492794] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 59.500042] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 59.507293] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 59.514541] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 59.559734] FAULT_INJECTION: forcing a failure. [ 59.559734] name failslab, interval 1, probability 0, space 0, times 0 [ 59.571798] CPU: 1 PID: 8745 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 59.579672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.589005] Call Trace: [ 59.591583] dump_stack+0x1fc/0x2ef [ 59.595197] should_fail.cold+0xa/0xf [ 59.598977] ? setup_fault_attr+0x200/0x200 [ 59.603290] ? lock_acquire+0x170/0x3c0 [ 59.607256] __should_failslab+0x115/0x180 [ 59.611481] should_failslab+0x5/0x10 [ 59.615264] kmem_cache_alloc+0x277/0x370 [ 59.619397] __d_alloc+0x2b/0xa10 [ 59.622834] d_alloc+0x4a/0x230 [ 59.626097] d_alloc_parallel+0xeb/0x19e0 [ 59.630230] ? mark_held_locks+0xf0/0xf0 [ 59.634272] ? __d_lookup_rcu+0x6b0/0x6b0 [ 59.638397] ? device_add+0xbf8/0x16d0 [ 59.642267] ? mark_held_locks+0xf0/0xf0 [ 59.646309] ? __lockdep_init_map+0x100/0x5a0 [ 59.650783] ? __lockdep_init_map+0x100/0x5a0 [ 59.655261] __lookup_slow+0x18d/0x4a0 [ 59.659129] ? check_preemption_disabled+0x41/0x280 [ 59.664125] ? follow_dotdot_rcu+0x1040/0x1040 [ 59.668688] ? __d_lookup+0x411/0x710 [ 59.672475] ? d_lookup+0x18e/0x250 [ 59.676086] lookup_one_len+0x163/0x190 [ 59.680040] ? try_lookup_one_len+0x180/0x180 [ 59.684518] start_creating+0xc9/0x220 [ 59.688479] debugfs_create_dir+0x1f/0x440 [ 59.692701] bdi_register_va.part.0+0x1f7/0x750 [ 59.697349] bdi_register+0x12a/0x140 [ 59.701131] ? bdi_register_va+0x80/0x80 [ 59.705174] ? vsnprintf+0x2cc/0x14f0 [ 59.708956] bdi_register_owner+0x59/0x100 [ 59.713170] __device_add_disk+0xd58/0x10c0 [ 59.717488] ? sprintf+0xc0/0x100 [ 59.720922] ? blk_alloc_devt+0x2d0/0x2d0 [ 59.725052] ? __raw_spin_lock_init+0x28/0x100 [ 59.729615] ? __lockdep_init_map+0x100/0x5a0 [ 59.734097] loop_add+0x628/0x8a0 [ 59.737532] loop_control_ioctl+0x16c/0x480 [ 59.741835] ? loop_lookup+0x1d0/0x1d0 [ 59.745704] ? __vfs_write+0xff/0x770 [ 59.749487] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 59.754396] ? common_file_perm+0x4e5/0x850 [ 59.758715] ? loop_lookup+0x1d0/0x1d0 [ 59.762587] do_vfs_ioctl+0xcdb/0x12e0 [ 59.766454] ? vfs_write+0x3d7/0x540 [ 59.770151] ? ioctl_preallocate+0x200/0x200 [ 59.774687] ? lock_downgrade+0x720/0x720 [ 59.778821] ? check_preemption_disabled+0x41/0x280 [ 59.783869] ? vfs_write+0x393/0x540 [ 59.787572] ? ksys_write+0x1c8/0x2a0 [ 59.791361] ksys_ioctl+0x9b/0xc0 [ 59.794796] __x64_sys_ioctl+0x6f/0xb0 [ 59.798674] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 59.803252] do_syscall_64+0xf9/0x620 [ 59.807041] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.812221] RIP: 0033:0x7fa6bb5cf079 [ 59.815926] 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 [ 59.834814] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 59.842506] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 59.849759] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 executing program executing program [ 59.857012] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 59.864261] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 59.871530] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 59.939576] FAULT_INJECTION: forcing a failure. [ 59.939576] name failslab, interval 1, probability 0, space 0, times 0 [ 59.951183] CPU: 0 PID: 8754 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 59.959053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.968388] Call Trace: [ 59.970966] dump_stack+0x1fc/0x2ef [ 59.974581] should_fail.cold+0xa/0xf [ 59.978367] ? setup_fault_attr+0x200/0x200 [ 59.982670] ? lock_acquire+0x170/0x3c0 [ 59.986626] __should_failslab+0x115/0x180 [ 59.990844] should_failslab+0x5/0x10 [ 59.994635] kmem_cache_alloc_trace+0x284/0x380 [ 59.999298] ? wait_for_completion_io+0x10/0x10 [ 60.003953] ? kobj_ns_initial+0x90/0x90 [ 60.007995] call_usermodehelper_setup+0x84/0x300 [ 60.012822] kobject_uevent_env+0xe83/0x1480 [ 60.017215] device_add+0xb2f/0x16d0 [ 60.020922] ? device_check_offline+0x280/0x280 [ 60.025578] ? kfree_const+0x51/0x60 [ 60.029269] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 60.034266] ? kfree+0x1e2/0x210 [ 60.037617] device_create_groups_vargs+0x1f4/0x270 [ 60.042616] device_create+0xdf/0x120 [ 60.046401] ? device_create_vargs+0x50/0x50 [ 60.050796] ? pointer+0x850/0x850 [ 60.054321] bdi_register_va.part.0+0x4c/0x750 [ 60.058883] bdi_register+0x12a/0x140 [ 60.062662] ? bdi_register_va+0x80/0x80 [ 60.066707] ? vsnprintf+0x2cc/0x14f0 [ 60.070490] bdi_register_owner+0x59/0x100 [ 60.074712] __device_add_disk+0xd58/0x10c0 [ 60.079019] ? sprintf+0xc0/0x100 [ 60.082452] ? blk_alloc_devt+0x2d0/0x2d0 [ 60.086582] ? __raw_spin_lock_init+0x28/0x100 [ 60.091152] ? __lockdep_init_map+0x100/0x5a0 [ 60.095629] loop_add+0x628/0x8a0 [ 60.099064] loop_control_ioctl+0x16c/0x480 [ 60.103363] ? loop_lookup+0x1d0/0x1d0 [ 60.107231] ? __vfs_write+0xff/0x770 [ 60.111013] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 60.115922] ? common_file_perm+0x4e5/0x850 [ 60.120228] ? loop_lookup+0x1d0/0x1d0 [ 60.124099] do_vfs_ioctl+0xcdb/0x12e0 [ 60.127970] ? vfs_write+0x3d7/0x540 [ 60.131664] ? ioctl_preallocate+0x200/0x200 [ 60.136052] ? lock_downgrade+0x720/0x720 [ 60.140188] ? check_preemption_disabled+0x41/0x280 [ 60.145188] ? vfs_write+0x393/0x540 [ 60.148892] ? ksys_write+0x1c8/0x2a0 [ 60.152683] ksys_ioctl+0x9b/0xc0 [ 60.156117] __x64_sys_ioctl+0x6f/0xb0 [ 60.159985] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 60.164549] do_syscall_64+0xf9/0x620 [ 60.168337] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.173510] RIP: 0033:0x7fa6bb5cf079 executing program executing program executing program [ 60.177204] 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 [ 60.196083] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.203772] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 60.211027] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 60.218278] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 60.225532] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 60.232782] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 60.300196] FAULT_INJECTION: forcing a failure. [ 60.300196] name failslab, interval 1, probability 0, space 0, times 0 [ 60.313987] CPU: 0 PID: 8764 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 60.321877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.331211] Call Trace: [ 60.333784] dump_stack+0x1fc/0x2ef [ 60.337393] should_fail.cold+0xa/0xf [ 60.341175] ? setup_fault_attr+0x200/0x200 [ 60.345478] ? lock_acquire+0x170/0x3c0 [ 60.349435] __should_failslab+0x115/0x180 [ 60.353652] should_failslab+0x5/0x10 [ 60.357486] kmem_cache_alloc_trace+0x284/0x380 [ 60.362136] ? wait_for_completion_io+0x10/0x10 [ 60.366784] ? kobj_ns_initial+0x90/0x90 [ 60.370827] call_usermodehelper_setup+0x84/0x300 [ 60.375648] kobject_uevent_env+0xe83/0x1480 [ 60.380038] device_add+0xb2f/0x16d0 [ 60.383735] ? device_check_offline+0x280/0x280 [ 60.388385] ? kfree_const+0x51/0x60 [ 60.392078] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 60.397072] ? kfree+0x1e2/0x210 [ 60.400422] device_create_groups_vargs+0x1f4/0x270 [ 60.405428] device_create+0xdf/0x120 [ 60.409214] ? device_create_vargs+0x50/0x50 [ 60.413601] ? pointer+0x850/0x850 [ 60.417123] bdi_register_va.part.0+0x4c/0x750 [ 60.421687] bdi_register+0x12a/0x140 [ 60.425474] ? bdi_register_va+0x80/0x80 [ 60.429643] ? vsnprintf+0x2cc/0x14f0 [ 60.433430] bdi_register_owner+0x59/0x100 [ 60.437650] __device_add_disk+0xd58/0x10c0 [ 60.441957] ? sprintf+0xc0/0x100 [ 60.445390] ? blk_alloc_devt+0x2d0/0x2d0 [ 60.449523] ? __raw_spin_lock_init+0x28/0x100 [ 60.454085] ? __lockdep_init_map+0x100/0x5a0 [ 60.458659] loop_add+0x628/0x8a0 [ 60.462096] loop_control_ioctl+0x16c/0x480 [ 60.466397] ? loop_lookup+0x1d0/0x1d0 [ 60.470267] ? __vfs_write+0xff/0x770 [ 60.474047] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 60.478956] ? common_file_perm+0x4e5/0x850 [ 60.483259] ? loop_lookup+0x1d0/0x1d0 [ 60.487128] do_vfs_ioctl+0xcdb/0x12e0 [ 60.490994] ? vfs_write+0x3d7/0x540 [ 60.494690] ? ioctl_preallocate+0x200/0x200 [ 60.499079] ? lock_downgrade+0x720/0x720 [ 60.503209] ? check_preemption_disabled+0x41/0x280 [ 60.508216] ? vfs_write+0x393/0x540 [ 60.511913] ? ksys_write+0x1c8/0x2a0 [ 60.515692] ksys_ioctl+0x9b/0xc0 [ 60.519131] __x64_sys_ioctl+0x6f/0xb0 [ 60.523003] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 60.527608] do_syscall_64+0xf9/0x620 [ 60.531393] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.536566] RIP: 0033:0x7fa6bb5cf079 [ 60.540272] 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 [ 60.559149] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.566835] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 60.574082] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 60.581329] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 60.588578] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 60.595825] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 60.650149] FAULT_INJECTION: forcing a failure. [ 60.650149] name failslab, interval 1, probability 0, space 0, times 0 [ 60.661665] CPU: 0 PID: 8772 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 60.669531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.678863] Call Trace: [ 60.681433] dump_stack+0x1fc/0x2ef [ 60.685052] should_fail.cold+0xa/0xf [ 60.688842] ? setup_fault_attr+0x200/0x200 [ 60.693144] ? lock_acquire+0x170/0x3c0 [ 60.697101] __should_failslab+0x115/0x180 [ 60.701319] should_failslab+0x5/0x10 [ 60.705099] kmem_cache_alloc+0x277/0x370 [ 60.709226] skb_clone+0x151/0x3d0 [ 60.712749] netlink_broadcast_filtered+0x8e5/0xbc0 [ 60.717751] netlink_broadcast+0x35/0x40 [ 60.721802] kobject_uevent_env+0xa56/0x1480 [ 60.726194] device_add+0xb2f/0x16d0 [ 60.729891] ? device_check_offline+0x280/0x280 [ 60.734540] ? kfree_const+0x51/0x60 [ 60.738233] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 60.743226] ? kfree+0x1e2/0x210 [ 60.746572] device_create_groups_vargs+0x1f4/0x270 [ 60.751574] device_create+0xdf/0x120 [ 60.755364] ? device_create_vargs+0x50/0x50 [ 60.759753] ? pointer+0x850/0x850 [ 60.763274] bdi_register_va.part.0+0x4c/0x750 [ 60.767835] bdi_register+0x12a/0x140 [ 60.771615] ? bdi_register_va+0x80/0x80 [ 60.775662] ? vsnprintf+0x2cc/0x14f0 [ 60.779442] bdi_register_owner+0x59/0x100 [ 60.783658] __device_add_disk+0xd58/0x10c0 [ 60.787959] ? sprintf+0xc0/0x100 [ 60.791396] ? blk_alloc_devt+0x2d0/0x2d0 [ 60.795526] ? __raw_spin_lock_init+0x28/0x100 [ 60.800087] ? __lockdep_init_map+0x100/0x5a0 [ 60.804569] loop_add+0x628/0x8a0 [ 60.808008] loop_control_ioctl+0x16c/0x480 [ 60.812310] ? loop_lookup+0x1d0/0x1d0 [ 60.816180] ? __vfs_write+0xff/0x770 [ 60.819959] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 60.824873] ? common_file_perm+0x4e5/0x850 [ 60.829174] ? loop_lookup+0x1d0/0x1d0 [ 60.833043] do_vfs_ioctl+0xcdb/0x12e0 [ 60.836914] ? vfs_write+0x3d7/0x540 [ 60.840606] ? ioctl_preallocate+0x200/0x200 [ 60.844999] ? lock_downgrade+0x720/0x720 [ 60.849130] ? check_preemption_disabled+0x41/0x280 [ 60.854133] ? vfs_write+0x393/0x540 [ 60.857839] ? ksys_write+0x1c8/0x2a0 [ 60.861619] ksys_ioctl+0x9b/0xc0 [ 60.865062] __x64_sys_ioctl+0x6f/0xb0 [ 60.868930] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 60.873491] do_syscall_64+0xf9/0x620 [ 60.877274] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.882446] RIP: 0033:0x7fa6bb5cf079 executing program [ 60.886146] 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 [ 60.905023] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.912714] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 60.919963] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 60.927217] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 60.934466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 60.941715] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 executing program executing program [ 61.052485] FAULT_INJECTION: forcing a failure. [ 61.052485] name failslab, interval 1, probability 0, space 0, times 0 [ 61.064050] CPU: 0 PID: 8787 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 61.071933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.081268] Call Trace: [ 61.083838] dump_stack+0x1fc/0x2ef [ 61.087449] should_fail.cold+0xa/0xf [ 61.091236] ? setup_fault_attr+0x200/0x200 [ 61.095540] ? lock_acquire+0x170/0x3c0 [ 61.099498] __should_failslab+0x115/0x180 [ 61.103716] should_failslab+0x5/0x10 [ 61.107500] kmem_cache_alloc_trace+0x284/0x380 [ 61.112148] ? wait_for_completion_io+0x10/0x10 [ 61.116796] ? kobj_ns_initial+0x90/0x90 [ 61.120838] call_usermodehelper_setup+0x84/0x300 [ 61.125664] kobject_uevent_env+0xe83/0x1480 [ 61.130073] device_add+0xb2f/0x16d0 [ 61.133768] ? device_check_offline+0x280/0x280 [ 61.138419] ? kfree_const+0x51/0x60 [ 61.142110] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 61.147104] ? kfree+0x1e2/0x210 [ 61.150453] device_create_groups_vargs+0x1f4/0x270 [ 61.155454] device_create+0xdf/0x120 [ 61.159235] ? device_create_vargs+0x50/0x50 [ 61.163627] ? pointer+0x850/0x850 [ 61.167167] bdi_register_va.part.0+0x4c/0x750 [ 61.171741] bdi_register+0x12a/0x140 [ 61.175528] ? bdi_register_va+0x80/0x80 [ 61.179575] ? vsnprintf+0x2cc/0x14f0 [ 61.183360] bdi_register_owner+0x59/0x100 [ 61.187585] __device_add_disk+0xd58/0x10c0 [ 61.191890] ? sprintf+0xc0/0x100 [ 61.195327] ? blk_alloc_devt+0x2d0/0x2d0 [ 61.199458] ? __raw_spin_lock_init+0x28/0x100 [ 61.204020] ? __lockdep_init_map+0x100/0x5a0 [ 61.208498] loop_add+0x628/0x8a0 [ 61.211934] loop_control_ioctl+0x16c/0x480 [ 61.216236] ? loop_lookup+0x1d0/0x1d0 [ 61.220104] ? __vfs_write+0xff/0x770 [ 61.223881] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 61.228794] ? common_file_perm+0x4e5/0x850 [ 61.233096] ? loop_lookup+0x1d0/0x1d0 [ 61.236963] do_vfs_ioctl+0xcdb/0x12e0 [ 61.240832] ? vfs_write+0x3d7/0x540 [ 61.244526] ? ioctl_preallocate+0x200/0x200 [ 61.248915] ? lock_downgrade+0x720/0x720 [ 61.253046] ? check_preemption_disabled+0x41/0x280 [ 61.258042] ? vfs_write+0x393/0x540 [ 61.261759] ? ksys_write+0x1c8/0x2a0 [ 61.265541] ksys_ioctl+0x9b/0xc0 [ 61.268985] __x64_sys_ioctl+0x6f/0xb0 [ 61.272850] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 61.277409] do_syscall_64+0xf9/0x620 [ 61.281196] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.286364] RIP: 0033:0x7fa6bb5cf079 executing program [ 61.290113] 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 [ 61.308993] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.316780] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 61.324035] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 61.331292] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 61.338543] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 61.345795] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 61.409911] FAULT_INJECTION: forcing a failure. [ 61.409911] name failslab, interval 1, probability 0, space 0, times 0 [ 61.421430] CPU: 0 PID: 8793 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 61.429304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.438640] Call Trace: [ 61.441223] dump_stack+0x1fc/0x2ef [ 61.444832] should_fail.cold+0xa/0xf [ 61.448618] ? setup_fault_attr+0x200/0x200 [ 61.452919] ? lock_acquire+0x170/0x3c0 [ 61.456876] __should_failslab+0x115/0x180 [ 61.461093] should_failslab+0x5/0x10 [ 61.464876] kmem_cache_alloc+0x277/0x370 [ 61.469012] skb_clone+0x151/0x3d0 [ 61.472535] netlink_broadcast_filtered+0x8e5/0xbc0 [ 61.477542] netlink_broadcast+0x35/0x40 [ 61.481588] kobject_uevent_env+0xa56/0x1480 [ 61.485980] device_add+0xb2f/0x16d0 [ 61.489675] ? device_check_offline+0x280/0x280 [ 61.494381] ? kfree_const+0x51/0x60 [ 61.498081] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 61.503077] ? kfree+0x1e2/0x210 [ 61.506436] device_create_groups_vargs+0x1f4/0x270 [ 61.511438] device_create+0xdf/0x120 [ 61.515221] ? device_create_vargs+0x50/0x50 [ 61.519620] ? pointer+0x850/0x850 [ 61.523143] bdi_register_va.part.0+0x4c/0x750 [ 61.527706] bdi_register+0x12a/0x140 [ 61.531486] ? bdi_register_va+0x80/0x80 [ 61.535533] ? vsnprintf+0x2cc/0x14f0 [ 61.539318] bdi_register_owner+0x59/0x100 [ 61.543531] __device_add_disk+0xd58/0x10c0 [ 61.547834] ? sprintf+0xc0/0x100 [ 61.551271] ? blk_alloc_devt+0x2d0/0x2d0 [ 61.555401] ? __raw_spin_lock_init+0x28/0x100 [ 61.559971] ? __lockdep_init_map+0x100/0x5a0 [ 61.564456] loop_add+0x628/0x8a0 [ 61.567889] loop_control_ioctl+0x16c/0x480 [ 61.572187] ? loop_lookup+0x1d0/0x1d0 [ 61.576053] ? __vfs_write+0xff/0x770 [ 61.579832] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 61.584744] ? common_file_perm+0x4e5/0x850 [ 61.589043] ? loop_lookup+0x1d0/0x1d0 [ 61.592909] do_vfs_ioctl+0xcdb/0x12e0 [ 61.596778] ? vfs_write+0x3d7/0x540 [ 61.600471] ? ioctl_preallocate+0x200/0x200 [ 61.604865] ? lock_downgrade+0x720/0x720 [ 61.608996] ? check_preemption_disabled+0x41/0x280 [ 61.614003] ? vfs_write+0x393/0x540 [ 61.617704] ? ksys_write+0x1c8/0x2a0 [ 61.621497] ksys_ioctl+0x9b/0xc0 [ 61.624939] __x64_sys_ioctl+0x6f/0xb0 [ 61.628811] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 61.633386] do_syscall_64+0xf9/0x620 [ 61.637172] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.642344] RIP: 0033:0x7fa6bb5cf079 executing program executing program executing program [ 61.646042] 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 [ 61.664922] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.672609] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 61.679862] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 61.687112] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 61.694360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 61.701613] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 61.769467] FAULT_INJECTION: forcing a failure. [ 61.769467] name failslab, interval 1, probability 0, space 0, times 0 [ 61.780924] CPU: 0 PID: 8802 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 61.788787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.798121] Call Trace: [ 61.800697] dump_stack+0x1fc/0x2ef [ 61.804311] should_fail.cold+0xa/0xf [ 61.808094] ? setup_fault_attr+0x200/0x200 [ 61.812397] ? lock_acquire+0x170/0x3c0 [ 61.816351] __should_failslab+0x115/0x180 [ 61.820569] should_failslab+0x5/0x10 [ 61.824350] kmem_cache_alloc_trace+0x284/0x380 [ 61.828997] ? wait_for_completion_io+0x10/0x10 [ 61.833647] ? kobj_ns_initial+0x90/0x90 [ 61.837689] call_usermodehelper_setup+0x84/0x300 [ 61.842516] kobject_uevent_env+0xe83/0x1480 [ 61.846909] device_add+0xb2f/0x16d0 [ 61.850609] ? device_check_offline+0x280/0x280 [ 61.855261] ? kfree_const+0x51/0x60 [ 61.858956] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 61.863951] ? kfree+0x1e2/0x210 [ 61.867299] device_create_groups_vargs+0x1f4/0x270 [ 61.872296] device_create+0xdf/0x120 [ 61.876077] ? device_create_vargs+0x50/0x50 [ 61.880467] ? pointer+0x850/0x850 [ 61.883989] bdi_register_va.part.0+0x4c/0x750 [ 61.888609] bdi_register+0x12a/0x140 [ 61.892389] ? bdi_register_va+0x80/0x80 [ 61.896438] ? vsnprintf+0x2cc/0x14f0 [ 61.900220] bdi_register_owner+0x59/0x100 [ 61.904437] __device_add_disk+0xd58/0x10c0 [ 61.908743] ? sprintf+0xc0/0x100 [ 61.912175] ? blk_alloc_devt+0x2d0/0x2d0 [ 61.916309] ? __raw_spin_lock_init+0x28/0x100 [ 61.920875] ? __lockdep_init_map+0x100/0x5a0 [ 61.925356] loop_add+0x628/0x8a0 [ 61.928795] loop_control_ioctl+0x16c/0x480 [ 61.933096] ? loop_lookup+0x1d0/0x1d0 [ 61.936975] ? __vfs_write+0xff/0x770 [ 61.940774] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 61.945694] ? common_file_perm+0x4e5/0x850 [ 61.949999] ? loop_lookup+0x1d0/0x1d0 [ 61.953872] do_vfs_ioctl+0xcdb/0x12e0 [ 61.957743] ? vfs_write+0x3d7/0x540 [ 61.961435] ? ioctl_preallocate+0x200/0x200 [ 61.965824] ? lock_downgrade+0x720/0x720 [ 61.969955] ? check_preemption_disabled+0x41/0x280 [ 61.974953] ? vfs_write+0x393/0x540 [ 61.978650] ? ksys_write+0x1c8/0x2a0 [ 61.982433] ksys_ioctl+0x9b/0xc0 [ 61.985876] __x64_sys_ioctl+0x6f/0xb0 [ 61.989743] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 61.994305] do_syscall_64+0xf9/0x620 [ 61.998089] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.003259] RIP: 0033:0x7fa6bb5cf079 executing program [ 62.006950] 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 [ 62.025827] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.033518] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 62.040771] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 62.048021] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 62.055270] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 62.062524] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 62.132081] FAULT_INJECTION: forcing a failure. [ 62.132081] name failslab, interval 1, probability 0, space 0, times 0 [ 62.143667] CPU: 0 PID: 8810 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 62.151533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.160865] Call Trace: [ 62.163433] dump_stack+0x1fc/0x2ef [ 62.167041] should_fail.cold+0xa/0xf [ 62.170822] ? setup_fault_attr+0x200/0x200 [ 62.175127] ? lock_acquire+0x170/0x3c0 [ 62.179084] __should_failslab+0x115/0x180 [ 62.183299] should_failslab+0x5/0x10 [ 62.187079] kmem_cache_alloc_trace+0x284/0x380 [ 62.191740] ? wait_for_completion_io+0x10/0x10 [ 62.196415] ? kobj_ns_initial+0x90/0x90 [ 62.200467] call_usermodehelper_setup+0x84/0x300 [ 62.205314] kobject_uevent_env+0xe83/0x1480 [ 62.209715] device_add+0xb2f/0x16d0 [ 62.213412] ? device_check_offline+0x280/0x280 [ 62.218062] ? kfree_const+0x51/0x60 [ 62.221759] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 62.226763] ? kfree+0x1e2/0x210 [ 62.230119] device_create_groups_vargs+0x1f4/0x270 [ 62.235129] device_create+0xdf/0x120 [ 62.238916] ? device_create_vargs+0x50/0x50 [ 62.243310] ? pointer+0x850/0x850 [ 62.246839] bdi_register_va.part.0+0x4c/0x750 [ 62.251408] bdi_register+0x12a/0x140 [ 62.255189] ? bdi_register_va+0x80/0x80 [ 62.259236] ? vsnprintf+0x2cc/0x14f0 [ 62.263025] bdi_register_owner+0x59/0x100 [ 62.267241] __device_add_disk+0xd58/0x10c0 [ 62.271547] ? sprintf+0xc0/0x100 [ 62.274980] ? blk_alloc_devt+0x2d0/0x2d0 [ 62.279111] ? __raw_spin_lock_init+0x28/0x100 [ 62.283673] ? __lockdep_init_map+0x100/0x5a0 [ 62.288150] loop_add+0x628/0x8a0 [ 62.291586] loop_control_ioctl+0x16c/0x480 [ 62.295909] ? loop_lookup+0x1d0/0x1d0 [ 62.299777] ? __vfs_write+0xff/0x770 [ 62.303559] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 62.308512] ? common_file_perm+0x4e5/0x850 [ 62.312813] ? loop_lookup+0x1d0/0x1d0 [ 62.316683] do_vfs_ioctl+0xcdb/0x12e0 [ 62.320551] ? vfs_write+0x3d7/0x540 [ 62.324244] ? ioctl_preallocate+0x200/0x200 [ 62.328632] ? lock_downgrade+0x720/0x720 [ 62.332763] ? check_preemption_disabled+0x41/0x280 [ 62.337759] ? vfs_write+0x393/0x540 [ 62.341453] ? ksys_write+0x1c8/0x2a0 [ 62.345235] ksys_ioctl+0x9b/0xc0 [ 62.348669] __x64_sys_ioctl+0x6f/0xb0 [ 62.352539] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 62.357107] do_syscall_64+0xf9/0x620 [ 62.360898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.366065] RIP: 0033:0x7fa6bb5cf079 executing program [ 62.369759] 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 [ 62.388637] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.396324] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 62.403584] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 62.410832] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 62.418081] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 62.425332] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 62.489212] FAULT_INJECTION: forcing a failure. [ 62.489212] name failslab, interval 1, probability 0, space 0, times 0 [ 62.500719] CPU: 1 PID: 8817 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 62.508583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.517919] Call Trace: [ 62.520491] dump_stack+0x1fc/0x2ef [ 62.524111] should_fail.cold+0xa/0xf [ 62.527896] ? setup_fault_attr+0x200/0x200 [ 62.532199] ? lock_acquire+0x170/0x3c0 [ 62.536153] __should_failslab+0x115/0x180 [ 62.540370] should_failslab+0x5/0x10 [ 62.544149] kmem_cache_alloc_trace+0x284/0x380 [ 62.548817] ? wait_for_completion_io+0x10/0x10 [ 62.553465] ? kobj_ns_initial+0x90/0x90 [ 62.557510] call_usermodehelper_setup+0x84/0x300 [ 62.562336] kobject_uevent_env+0xe83/0x1480 [ 62.566819] device_add+0xb2f/0x16d0 [ 62.570515] ? device_check_offline+0x280/0x280 [ 62.575176] ? kfree_const+0x51/0x60 [ 62.578871] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 62.583865] ? kfree+0x1e2/0x210 [ 62.587216] device_create_groups_vargs+0x1f4/0x270 [ 62.592221] device_create+0xdf/0x120 [ 62.596261] ? device_create_vargs+0x50/0x50 [ 62.600686] ? pointer+0x850/0x850 [ 62.604211] bdi_register_va.part.0+0x4c/0x750 [ 62.608777] bdi_register+0x12a/0x140 [ 62.612562] ? bdi_register_va+0x80/0x80 [ 62.616604] ? vsnprintf+0x2cc/0x14f0 [ 62.620388] bdi_register_owner+0x59/0x100 [ 62.624604] __device_add_disk+0xd58/0x10c0 [ 62.628906] ? sprintf+0xc0/0x100 [ 62.632340] ? blk_alloc_devt+0x2d0/0x2d0 [ 62.636471] ? __raw_spin_lock_init+0x28/0x100 [ 62.641033] ? __lockdep_init_map+0x100/0x5a0 [ 62.645509] loop_add+0x628/0x8a0 [ 62.648947] loop_control_ioctl+0x16c/0x480 [ 62.653250] ? loop_lookup+0x1d0/0x1d0 [ 62.657128] ? __vfs_write+0xff/0x770 [ 62.660908] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 62.665825] ? common_file_perm+0x4e5/0x850 [ 62.670136] ? loop_lookup+0x1d0/0x1d0 [ 62.674005] do_vfs_ioctl+0xcdb/0x12e0 [ 62.677875] ? vfs_write+0x3d7/0x540 [ 62.681584] ? ioctl_preallocate+0x200/0x200 [ 62.685998] ? lock_downgrade+0x720/0x720 [ 62.690127] ? check_preemption_disabled+0x41/0x280 [ 62.695132] ? vfs_write+0x393/0x540 [ 62.698832] ? ksys_write+0x1c8/0x2a0 [ 62.702613] ksys_ioctl+0x9b/0xc0 [ 62.706049] __x64_sys_ioctl+0x6f/0xb0 [ 62.709920] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 62.714481] do_syscall_64+0xf9/0x620 [ 62.718271] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.723456] RIP: 0033:0x7fa6bb5cf079 executing program executing program [ 62.727149] 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 [ 62.746029] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.753825] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 62.761076] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 62.768329] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 62.775577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 62.782824] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 62.860590] FAULT_INJECTION: forcing a failure. [ 62.860590] name failslab, interval 1, probability 0, space 0, times 0 [ 62.871914] CPU: 1 PID: 8826 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 62.879786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.889137] Call Trace: [ 62.891711] dump_stack+0x1fc/0x2ef [ 62.895329] should_fail.cold+0xa/0xf [ 62.899122] ? setup_fault_attr+0x200/0x200 [ 62.903432] ? lock_acquire+0x170/0x3c0 [ 62.907392] __should_failslab+0x115/0x180 [ 62.911611] should_failslab+0x5/0x10 [ 62.915390] __kmalloc+0x2ab/0x3c0 [ 62.918909] ? kobj_map+0x72/0x420 [ 62.922430] ? blkdev_ioctl+0x1a80/0x1a80 [ 62.926559] kobj_map+0x72/0x420 [ 62.929908] ? disk_release+0x310/0x310 [ 62.933860] ? kobject_get+0x69/0xc0 [ 62.937558] __device_add_disk+0xe0a/0x10c0 [ 62.941867] ? sprintf+0xc0/0x100 [ 62.945302] ? blk_alloc_devt+0x2d0/0x2d0 [ 62.949431] ? __raw_spin_lock_init+0x28/0x100 [ 62.954001] ? __lockdep_init_map+0x100/0x5a0 [ 62.958499] loop_add+0x628/0x8a0 [ 62.961937] loop_control_ioctl+0x16c/0x480 [ 62.966242] ? loop_lookup+0x1d0/0x1d0 [ 62.970123] ? __vfs_write+0xff/0x770 [ 62.973901] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 62.978818] ? common_file_perm+0x4e5/0x850 [ 62.983119] ? loop_lookup+0x1d0/0x1d0 [ 62.986988] do_vfs_ioctl+0xcdb/0x12e0 [ 62.990867] ? vfs_write+0x3d7/0x540 [ 62.994561] ? ioctl_preallocate+0x200/0x200 [ 62.998948] ? lock_downgrade+0x720/0x720 [ 63.003075] ? check_preemption_disabled+0x41/0x280 [ 63.008072] ? vfs_write+0x393/0x540 [ 63.011767] ? ksys_write+0x1c8/0x2a0 [ 63.015549] ksys_ioctl+0x9b/0xc0 [ 63.018982] __x64_sys_ioctl+0x6f/0xb0 [ 63.022852] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 63.027416] do_syscall_64+0xf9/0x620 [ 63.031228] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.036407] RIP: 0033:0x7fa6bb5cf079 [ 63.040102] 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 executing program [ 63.058982] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 63.066668] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 63.073913] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 63.081161] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 63.088411] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 63.095667] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 63.149212] FAULT_INJECTION: forcing a failure. [ 63.149212] name failslab, interval 1, probability 0, space 0, times 0 [ 63.160766] CPU: 0 PID: 8836 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 63.168633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.177969] Call Trace: [ 63.180546] dump_stack+0x1fc/0x2ef [ 63.184156] should_fail.cold+0xa/0xf [ 63.187937] ? setup_fault_attr+0x200/0x200 [ 63.192240] ? lock_acquire+0x170/0x3c0 [ 63.196197] __should_failslab+0x115/0x180 [ 63.200419] should_failslab+0x5/0x10 [ 63.204203] kmem_cache_alloc+0x277/0x370 [ 63.208332] alloc_inode+0xab/0x180 [ 63.211937] new_inode+0x1d/0xf0 [ 63.215335] debugfs_get_inode+0x1a/0x130 [ 63.219465] debugfs_create_dir+0x73/0x440 [ 63.223682] bdi_register_va.part.0+0x1f7/0x750 [ 63.228331] bdi_register+0x12a/0x140 [ 63.232108] ? bdi_register_va+0x80/0x80 [ 63.236153] ? vsnprintf+0x2cc/0x14f0 [ 63.239936] bdi_register_owner+0x59/0x100 [ 63.244237] __device_add_disk+0xd58/0x10c0 [ 63.248550] ? sprintf+0xc0/0x100 [ 63.251990] ? blk_alloc_devt+0x2d0/0x2d0 [ 63.256117] ? __raw_spin_lock_init+0x28/0x100 [ 63.260682] ? __lockdep_init_map+0x100/0x5a0 [ 63.265160] loop_add+0x628/0x8a0 [ 63.268596] loop_control_ioctl+0x16c/0x480 [ 63.272897] ? loop_lookup+0x1d0/0x1d0 [ 63.276767] ? __vfs_write+0xff/0x770 [ 63.280549] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 63.285458] ? common_file_perm+0x4e5/0x850 [ 63.289759] ? loop_lookup+0x1d0/0x1d0 [ 63.293628] do_vfs_ioctl+0xcdb/0x12e0 [ 63.297495] ? vfs_write+0x3d7/0x540 [ 63.301189] ? ioctl_preallocate+0x200/0x200 [ 63.305600] ? lock_downgrade+0x720/0x720 [ 63.309744] ? check_preemption_disabled+0x41/0x280 [ 63.314747] ? vfs_write+0x393/0x540 [ 63.318447] ? ksys_write+0x1c8/0x2a0 [ 63.322254] ksys_ioctl+0x9b/0xc0 [ 63.325687] __x64_sys_ioctl+0x6f/0xb0 [ 63.329555] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 63.334115] do_syscall_64+0xf9/0x620 [ 63.337898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.343065] RIP: 0033:0x7fa6bb5cf079 [ 63.346759] 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 [ 63.365644] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 63.373417] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 63.380667] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 63.387916] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 63.395164] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 63.402420] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 63.469441] FAULT_INJECTION: forcing a failure. [ 63.469441] name failslab, interval 1, probability 0, space 0, times 0 [ 63.481391] CPU: 1 PID: 8846 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 63.489279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.498611] Call Trace: [ 63.501182] dump_stack+0x1fc/0x2ef [ 63.504791] should_fail.cold+0xa/0xf [ 63.508574] ? setup_fault_attr+0x200/0x200 [ 63.512878] ? lock_acquire+0x170/0x3c0 [ 63.516836] __should_failslab+0x115/0x180 [ 63.521053] should_failslab+0x5/0x10 [ 63.524840] __kmalloc_track_caller+0x2a6/0x3c0 [ 63.529488] ? kstrdup_const+0x53/0x80 [ 63.533363] kstrdup+0x36/0x70 [ 63.536539] kstrdup_const+0x53/0x80 [ 63.540234] kvasprintf_const+0x108/0x190 [ 63.544364] kobject_set_name_vargs+0x56/0x150 [ 63.548925] dev_set_name+0xbd/0xf0 [ 63.552533] ? device_initialize+0x450/0x450 [ 63.556928] ? kobj_map+0x348/0x420 [ 63.560546] ? disk_release+0x310/0x310 [ 63.564505] __device_add_disk+0x58a/0x10c0 [ 63.568809] ? sprintf+0xc0/0x100 [ 63.572314] ? blk_alloc_devt+0x2d0/0x2d0 [ 63.576442] ? __raw_spin_lock_init+0x28/0x100 [ 63.581006] ? __lockdep_init_map+0x100/0x5a0 [ 63.585483] loop_add+0x628/0x8a0 [ 63.588922] loop_control_ioctl+0x16c/0x480 [ 63.593221] ? loop_lookup+0x1d0/0x1d0 [ 63.597092] ? __vfs_write+0xff/0x770 [ 63.600872] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 63.605778] ? common_file_perm+0x4e5/0x850 [ 63.610086] ? loop_lookup+0x1d0/0x1d0 [ 63.613955] do_vfs_ioctl+0xcdb/0x12e0 [ 63.617823] ? vfs_write+0x3d7/0x540 [ 63.621518] ? ioctl_preallocate+0x200/0x200 [ 63.625918] ? lock_downgrade+0x720/0x720 [ 63.630057] ? check_preemption_disabled+0x41/0x280 [ 63.635053] ? vfs_write+0x393/0x540 [ 63.638747] ? ksys_write+0x1c8/0x2a0 [ 63.642529] ksys_ioctl+0x9b/0xc0 [ 63.645964] __x64_sys_ioctl+0x6f/0xb0 [ 63.649831] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 63.654443] do_syscall_64+0xf9/0x620 [ 63.658224] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.663392] RIP: 0033:0x7fa6bb5cf079 [ 63.667087] 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 [ 63.685973] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 63.693671] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 63.700919] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 63.708171] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 63.715418] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 63.722667] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 63.731363] ------------[ cut here ]------------ [ 63.736125] kernel BUG at fs/sysfs/group.c:115! [ 63.741137] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 63.746506] CPU: 1 PID: 8846 Comm: syz-executor919 Not tainted 4.19.211-syzkaller #0 [ 63.754376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.763723] RIP: 0010:internal_create_group+0x8ef/0xb20 [ 63.769064] 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 [ 63.787944] RSP: 0018:ffff888097f879f8 EFLAGS: 00010293 [ 63.793284] RAX: ffff88809687e240 RBX: 0000000000000000 RCX: ffffffff81c5372e [ 63.800550] RDX: 0000000000000000 RSI: ffffffff81c53f5f RDI: 0000000000000005 [ 63.807800] RBP: ffff8880aef7c6d0 R08: 0000000000000000 R09: 0000000000000000 [ 63.815048] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 63.822298] R13: ffff8880aef7c690 R14: ffff8880aef7c6a0 R15: 0000000000000000 [ 63.829546] FS: 0000555555ceb300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 63.837756] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.843618] CR2: 00007fa6bb627144 CR3: 00000000b35f4000 CR4: 00000000003406e0 [ 63.850869] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.858117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.865362] Call Trace: [ 63.867931] ? sysfs_remove_link_from_group+0x70/0x70 [ 63.873099] ? mark_held_locks+0xa6/0xf0 [ 63.877141] ? _raw_spin_unlock_irq+0x24/0x80 [ 63.882160] blk_register_queue+0x12c/0x5b0 [ 63.886471] __device_add_disk+0xe1d/0x10c0 [ 63.890779] ? sprintf+0xc0/0x100 [ 63.894213] ? blk_alloc_devt+0x2d0/0x2d0 [ 63.898338] ? __raw_spin_lock_init+0x28/0x100 [ 63.902900] ? __lockdep_init_map+0x100/0x5a0 [ 63.907372] loop_add+0x628/0x8a0 [ 63.910806] loop_control_ioctl+0x16c/0x480 [ 63.915106] ? loop_lookup+0x1d0/0x1d0 [ 63.918981] ? __vfs_write+0xff/0x770 [ 63.922760] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 63.927667] ? common_file_perm+0x4e5/0x850 [ 63.931975] ? loop_lookup+0x1d0/0x1d0 [ 63.935845] do_vfs_ioctl+0xcdb/0x12e0 [ 63.939714] ? vfs_write+0x3d7/0x540 [ 63.943405] ? ioctl_preallocate+0x200/0x200 [ 63.947792] ? lock_downgrade+0x720/0x720 [ 63.951918] ? check_preemption_disabled+0x41/0x280 [ 63.956919] ? vfs_write+0x393/0x540 [ 63.960613] ? ksys_write+0x1c8/0x2a0 [ 63.964394] ksys_ioctl+0x9b/0xc0 [ 63.967824] __x64_sys_ioctl+0x6f/0xb0 [ 63.971689] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 63.976254] do_syscall_64+0xf9/0x620 [ 63.980036] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.985204] RIP: 0033:0x7fa6bb5cf079 [ 63.988894] 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 [ 64.007798] RSP: 002b:00007ffdf7801728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 64.015491] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa6bb5cf079 [ 64.022826] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 64.030070] RBP: 00007ffdf7801740 R08: 0000000000000002 R09: 0000000000000001 [ 64.037314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 64.044561] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 64.051814] Modules linked in: [ 64.056757] ---[ end trace 875fa488e84fa92e ]--- [ 64.061573] RIP: 0010:internal_create_group+0x8ef/0xb20 [ 64.067657] 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 [ 64.086812] RSP: 0018:ffff888097f879f8 EFLAGS: 00010293 [ 64.092421] RAX: ffff88809687e240 RBX: 0000000000000000 RCX: ffffffff81c5372e [ 64.099887] RDX: 0000000000000000 RSI: ffffffff81c53f5f RDI: 0000000000000005 [ 64.107200] RBP: ffff8880aef7c6d0 R08: 0000000000000000 R09: 0000000000000000 [ 64.114468] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 64.121773] R13: ffff8880aef7c690 R14: ffff8880aef7c6a0 R15: 0000000000000000 [ 64.129089] FS: 0000555555ceb300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 64.137336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.143391] CR2: 00007fa6bb627144 CR3: 00000000b35f4000 CR4: 00000000003406e0 [ 64.150697] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.158064] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.165348] Kernel panic - not syncing: Fatal exception [ 64.170944] Kernel Offset: disabled [ 64.174564] Rebooting in 86400 seconds..