[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   19.564721] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   23.824421] random: sshd: uninitialized urandom read (32 bytes read)
[   24.072672] random: sshd: uninitialized urandom read (32 bytes read)
[   24.892371] random: sshd: uninitialized urandom read (32 bytes read)
[  626.406413] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts.
[  631.970933] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[  632.062519] FAULT_INJECTION: forcing a failure.
[  632.062519] name failslab, interval 1, probability 0, space 0, times 1
[  632.073814] CPU: 0 PID: 4538 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  632.080896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  632.090238] Call Trace:
[  632.092814]  dump_stack+0x1c9/0x2b4
[  632.096429]  ? dump_stack_print_info.cold.2+0x52/0x52
[  632.101599]  ? save_stack+0x43/0xd0
[  632.105214]  ? kasan_kmalloc+0xc4/0xe0
[  632.109082]  ? kasan_slab_alloc+0x12/0x20
[  632.113212]  ? kmem_cache_alloc+0x12e/0x760
[  632.117517]  ? copy_creds+0x7b/0x470
[  632.121216]  should_fail.cold.4+0xa/0x1a
[  632.125272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  632.130359]  ? find_held_lock+0x36/0x1c0
[  632.134410]  ? find_held_lock+0x36/0x1c0
[  632.138464]  ? check_same_owner+0x340/0x340
[  632.142767]  ? rcu_is_watching+0x8c/0x150
[  632.146894]  ? rcu_note_context_switch+0x730/0x730
[  632.151805]  ? security_prepare_creds+0x94/0xc0
[  632.156468]  __should_failslab+0x124/0x180
[  632.160682]  should_failslab+0x9/0x14
[  632.164464]  kmem_cache_alloc+0x2af/0x760
[  632.168595]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  632.173606]  __delayacct_tsk_init+0x20/0x80
[  632.177910]  copy_process.part.39+0x2ba8/0x7250
[  632.182568]  ? __lock_acquire+0x7fc/0x5020
[  632.186794]  ? __lock_acquire+0x7fc/0x5020
[  632.191010]  ? __lock_acquire+0x7fc/0x5020
[  632.195239]  ? __cleanup_sighand+0x70/0x70
[  632.199457]  ? debug_check_no_locks_freed+0x310/0x310
[  632.204631]  ? debug_check_no_locks_freed+0x310/0x310
[  632.209804]  ? print_usage_bug+0xc0/0xc0
[  632.213850]  ? print_usage_bug+0xc0/0xc0
[  632.217891]  ? d_splice_alias+0x7c9/0x11f0
[  632.222106]  ? lock_downgrade+0x8f0/0x8f0
[  632.226235]  ? d_instantiate_anon+0x30/0x30
[  632.230552]  ? __lock_acquire+0x7fc/0x5020
[  632.234772]  ? print_usage_bug+0xc0/0xc0
[  632.238817]  ? debug_check_no_locks_freed+0x310/0x310
[  632.243990]  ? debug_check_no_locks_freed+0x310/0x310
[  632.249161]  ? __lock_acquire+0x7fc/0x5020
[  632.253417]  ? print_usage_bug+0xc0/0xc0
[  632.257458]  ? lock_downgrade+0x8f0/0x8f0
[  632.261601]  ? debug_check_no_locks_freed+0x310/0x310
[  632.266775]  ? print_usage_bug+0xc0/0xc0
[  632.270818]  ? graph_lock+0x170/0x170
[  632.274598]  ? do_raw_spin_lock+0xc1/0x200
[  632.278815]  ? graph_lock+0x170/0x170
[  632.282598]  ? graph_lock+0x170/0x170
[  632.286384]  ? find_held_lock+0x36/0x1c0
[  632.290429]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.295949]  ? _parse_integer+0x13b/0x190
[  632.300078]  ? graph_lock+0x170/0x170
[  632.303860]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  632.309376]  ? _kstrtoull+0x188/0x250
[  632.313159]  ? _parse_integer+0x190/0x190
[  632.317299]  ? graph_lock+0x170/0x170
[  632.321081]  ? lock_release+0xa30/0xa30
[  632.325038]  ? find_held_lock+0x36/0x1c0
[  632.329084]  ? lock_downgrade+0x8f0/0x8f0
[  632.333217]  ? kasan_check_read+0x11/0x20
[  632.337350]  ? rcu_is_watching+0x8c/0x150
[  632.341484]  ? pid_task+0x115/0x200
[  632.345090]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  632.349488]  ? save_stack+0xa9/0xd0
[  632.353098]  ? graph_lock+0x170/0x170
[  632.356882]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  632.362406]  ? proc_fail_nth_write+0x9e/0x210
[  632.366883]  ? proc_cwd_link+0x1d0/0x1d0
[  632.370925]  ? kasan_check_read+0x11/0x20
[  632.375054]  ? find_held_lock+0x36/0x1c0
[  632.379105]  _do_fork+0x291/0x12a0
[  632.382632]  ? fork_idle+0x1a0/0x1a0
[  632.386334]  ? __lock_is_held+0xb5/0x140
[  632.390380]  ? __sb_end_write+0xac/0xe0
[  632.394338]  ? vfs_write+0x2a8/0x560
[  632.398789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.404309]  ? ksys_write+0x1ae/0x260
[  632.408089]  ? __ia32_sys_read+0xb0/0xb0
[  632.412133]  ? syscall_slow_exit_work+0x500/0x500
[  632.416959]  __x64_sys_clone+0xbf/0x150
[  632.420925]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  632.425922]  do_syscall_64+0x1b9/0x820
[  632.429790]  ? syscall_return_slowpath+0x5e0/0x5e0
[  632.434701]  ? syscall_return_slowpath+0x31d/0x5e0
[  632.439616]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  632.444965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  632.449794]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  632.454966] RIP: 0033:0x441519
[  632.458134] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  632.477311] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  632.485003] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  632.492255] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  632.499517] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  632.506770] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  632.514018] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  632.527247] FAULT_INJECTION: forcing a failure.
[  632.527247] name failslab, interval 1, probability 0, space 0, times 0
[  632.538492] CPU: 0 PID: 4540 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  632.545588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  632.554922] Call Trace:
[  632.557497]  dump_stack+0x1c9/0x2b4
[  632.561119]  ? dump_stack_print_info.cold.2+0x52/0x52
[  632.566292]  ? save_stack+0x43/0xd0
[  632.569901]  ? kasan_kmalloc+0xc4/0xe0
[  632.573768]  ? kasan_slab_alloc+0x12/0x20
[  632.577907]  ? kmem_cache_alloc+0x12e/0x760
[  632.582211]  ? copy_creds+0x7b/0x470
[  632.585921]  should_fail.cold.4+0xa/0x1a
[  632.589966]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  632.595053]  ? find_held_lock+0x36/0x1c0
[  632.599102]  ? find_held_lock+0x36/0x1c0
[  632.603151]  ? check_same_owner+0x340/0x340
[  632.607475]  ? rcu_is_watching+0x8c/0x150
[  632.611604]  ? rcu_note_context_switch+0x730/0x730
[  632.616517]  ? security_prepare_creds+0x94/0xc0
[  632.621169]  __should_failslab+0x124/0x180
[  632.625387]  should_failslab+0x9/0x14
[  632.629168]  kmem_cache_alloc+0x2af/0x760
[  632.633296]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  632.638298]  __delayacct_tsk_init+0x20/0x80
[  632.642602]  copy_process.part.39+0x2ba8/0x7250
[  632.647252]  ? __lock_acquire+0x7fc/0x5020
[  632.651473]  ? __lock_acquire+0x7fc/0x5020
[  632.655698]  ? __lock_acquire+0x7fc/0x5020
[  632.659920]  ? __cleanup_sighand+0x70/0x70
[  632.664138]  ? debug_check_no_locks_freed+0x310/0x310
[  632.669309]  ? debug_check_no_locks_freed+0x310/0x310
[  632.674511]  ? print_usage_bug+0xc0/0xc0
[  632.678565]  ? print_usage_bug+0xc0/0xc0
[  632.682612]  ? d_splice_alias+0x7c9/0x11f0
[  632.686830]  ? lock_downgrade+0x8f0/0x8f0
[  632.690963]  ? d_instantiate_anon+0x30/0x30
[  632.695285]  ? __lock_acquire+0x7fc/0x5020
[  632.699506]  ? print_usage_bug+0xc0/0xc0
[  632.703555]  ? debug_check_no_locks_freed+0x310/0x310
[  632.708733]  ? debug_check_no_locks_freed+0x310/0x310
[  632.713909]  ? __lock_acquire+0x7fc/0x5020
[  632.718128]  ? print_usage_bug+0xc0/0xc0
[  632.722173]  ? lock_downgrade+0x8f0/0x8f0
[  632.726322]  ? debug_check_no_locks_freed+0x310/0x310
[  632.731496]  ? print_usage_bug+0xc0/0xc0
[  632.735550]  ? graph_lock+0x170/0x170
[  632.739331]  ? do_raw_spin_lock+0xc1/0x200
[  632.743550]  ? graph_lock+0x170/0x170
[  632.747333]  ? graph_lock+0x170/0x170
[  632.751120]  ? find_held_lock+0x36/0x1c0
[  632.755167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.760695]  ? _parse_integer+0x13b/0x190
[  632.764829]  ? graph_lock+0x170/0x170
[  632.768611]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  632.774131]  ? _kstrtoull+0x188/0x250
[  632.777918]  ? _parse_integer+0x190/0x190
[  632.782046]  ? graph_lock+0x170/0x170
[  632.785839]  ? lock_release+0xa30/0xa30
[  632.789796]  ? find_held_lock+0x36/0x1c0
[  632.793843]  ? lock_downgrade+0x8f0/0x8f0
[  632.797976]  ? kasan_check_read+0x11/0x20
[  632.802102]  ? rcu_is_watching+0x8c/0x150
[  632.806231]  ? pid_task+0x115/0x200
[  632.810036]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  632.814423]  ? save_stack+0xa9/0xd0
[  632.818028]  ? graph_lock+0x170/0x170
[  632.821819]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  632.827334]  ? proc_fail_nth_write+0x9e/0x210
[  632.831811]  ? proc_cwd_link+0x1d0/0x1d0
[  632.835854]  ? kasan_check_read+0x11/0x20
[  632.839983]  ? find_held_lock+0x36/0x1c0
[  632.844040]  _do_fork+0x291/0x12a0
[  632.847564]  ? fork_idle+0x1a0/0x1a0
[  632.851289]  ? __lock_is_held+0xb5/0x140
[  632.855339]  ? __sb_end_write+0xac/0xe0
[  632.859295]  ? vfs_write+0x2a8/0x560
[  632.862995]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.868511]  ? ksys_write+0x1ae/0x260
[  632.872294]  ? __ia32_sys_read+0xb0/0xb0
[  632.876338]  ? syscall_slow_exit_work+0x500/0x500
[  632.881164]  __x64_sys_clone+0xbf/0x150
[  632.885120]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  632.890119]  do_syscall_64+0x1b9/0x820
[  632.893986]  ? syscall_slow_exit_work+0x500/0x500
[  632.898812]  ? syscall_return_slowpath+0x5e0/0x5e0
[  632.903720]  ? syscall_return_slowpath+0x31d/0x5e0
[  632.908637]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  632.914001]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  632.918829]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  632.924086] RIP: 0033:0x441519
[  632.927251] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  632.946436] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  632.954134] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  632.961385] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  632.968634] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  632.975883] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  632.983133] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  632.994000] FAULT_INJECTION: forcing a failure.
[  632.994000] name failslab, interval 1, probability 0, space 0, times 0
[  633.005330] CPU: 0 PID: 4542 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  633.012409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  633.021742] Call Trace:
[  633.024315]  dump_stack+0x1c9/0x2b4
[  633.027925]  ? dump_stack_print_info.cold.2+0x52/0x52
[  633.033107]  ? save_stack+0x43/0xd0
[  633.036714]  ? kasan_kmalloc+0xc4/0xe0
[  633.040590]  ? kasan_slab_alloc+0x12/0x20
[  633.044719]  ? kmem_cache_alloc+0x12e/0x760
[  633.049035]  ? copy_creds+0x7b/0x470
[  633.052734]  should_fail.cold.4+0xa/0x1a
[  633.056775]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.061875]  ? find_held_lock+0x36/0x1c0
[  633.065922]  ? find_held_lock+0x36/0x1c0
[  633.069969]  ? check_same_owner+0x340/0x340
[  633.074271]  ? rcu_is_watching+0x8c/0x150
[  633.078399]  ? rcu_note_context_switch+0x730/0x730
[  633.083313]  ? security_prepare_creds+0x94/0xc0
[  633.087975]  __should_failslab+0x124/0x180
[  633.092195]  should_failslab+0x9/0x14
[  633.095978]  kmem_cache_alloc+0x2af/0x760
[  633.100114]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  633.105123]  __delayacct_tsk_init+0x20/0x80
[  633.109428]  copy_process.part.39+0x2ba8/0x7250
[  633.114079]  ? __lock_acquire+0x7fc/0x5020
[  633.118309]  ? __lock_acquire+0x7fc/0x5020
[  633.122526]  ? __lock_acquire+0x7fc/0x5020
[  633.126747]  ? __cleanup_sighand+0x70/0x70
[  633.130962]  ? debug_check_no_locks_freed+0x310/0x310
[  633.136132]  ? debug_check_no_locks_freed+0x310/0x310
[  633.141310]  ? print_usage_bug+0xc0/0xc0
[  633.145355]  ? print_usage_bug+0xc0/0xc0
[  633.149403]  ? d_splice_alias+0x7c9/0x11f0
[  633.153618]  ? lock_downgrade+0x8f0/0x8f0
[  633.157754]  ? d_instantiate_anon+0x30/0x30
[  633.162068]  ? __lock_acquire+0x7fc/0x5020
[  633.166316]  ? print_usage_bug+0xc0/0xc0
[  633.170376]  ? debug_check_no_locks_freed+0x310/0x310
[  633.175550]  ? debug_check_no_locks_freed+0x310/0x310
[  633.180728]  ? __lock_acquire+0x7fc/0x5020
[  633.184958]  ? print_usage_bug+0xc0/0xc0
[  633.189007]  ? lock_downgrade+0x8f0/0x8f0
[  633.193140]  ? debug_check_no_locks_freed+0x310/0x310
[  633.198315]  ? print_usage_bug+0xc0/0xc0
[  633.202360]  ? graph_lock+0x170/0x170
[  633.206145]  ? do_raw_spin_lock+0xc1/0x200
[  633.210364]  ? graph_lock+0x170/0x170
[  633.214147]  ? graph_lock+0x170/0x170
[  633.217930]  ? find_held_lock+0x36/0x1c0
[  633.221989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.227508]  ? _parse_integer+0x13b/0x190
[  633.231645]  ? graph_lock+0x170/0x170
[  633.235424]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  633.240955]  ? _kstrtoull+0x188/0x250
[  633.244741]  ? _parse_integer+0x190/0x190
[  633.248867]  ? graph_lock+0x170/0x170
[  633.252646]  ? lock_release+0xa30/0xa30
[  633.256611]  ? find_held_lock+0x36/0x1c0
[  633.260657]  ? lock_downgrade+0x8f0/0x8f0
[  633.264789]  ? kasan_check_read+0x11/0x20
[  633.268914]  ? rcu_is_watching+0x8c/0x150
[  633.273042]  ? pid_task+0x115/0x200
[  633.276647]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  633.281046]  ? save_stack+0xa9/0xd0
[  633.284655]  ? graph_lock+0x170/0x170
[  633.288440]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  633.293954]  ? proc_fail_nth_write+0x9e/0x210
[  633.298433]  ? proc_cwd_link+0x1d0/0x1d0
[  633.302473]  ? kasan_check_read+0x11/0x20
[  633.306605]  ? find_held_lock+0x36/0x1c0
[  633.310651]  _do_fork+0x291/0x12a0
[  633.314176]  ? fork_idle+0x1a0/0x1a0
[  633.317875]  ? __lock_is_held+0xb5/0x140
[  633.321922]  ? __sb_end_write+0xac/0xe0
[  633.325886]  ? vfs_write+0x2a8/0x560
[  633.329584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.335107]  ? ksys_write+0x1ae/0x260
[  633.338888]  ? __ia32_sys_read+0xb0/0xb0
[  633.342942]  ? syscall_slow_exit_work+0x500/0x500
[  633.347766]  __x64_sys_clone+0xbf/0x150
[  633.351718]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  633.356715]  do_syscall_64+0x1b9/0x820
[  633.360582]  ? syscall_slow_exit_work+0x500/0x500
[  633.365406]  ? syscall_return_slowpath+0x5e0/0x5e0
[  633.370322]  ? syscall_return_slowpath+0x31d/0x5e0
[  633.375239]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  633.380584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  633.385422]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  633.390590] RIP: 0033:0x441519
[  633.393766] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  633.412945] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  633.420720] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  633.427969] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  633.435220] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  633.442472] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  633.449719] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  633.460182] FAULT_INJECTION: forcing a failure.
[  633.460182] name failslab, interval 1, probability 0, space 0, times 0
[  633.471427] CPU: 0 PID: 4544 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  633.478510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  633.487853] Call Trace:
[  633.490438]  dump_stack+0x1c9/0x2b4
[  633.494049]  ? dump_stack_print_info.cold.2+0x52/0x52
[  633.499220]  ? save_stack+0x43/0xd0
[  633.502830]  ? kasan_kmalloc+0xc4/0xe0
[  633.506701]  ? kasan_slab_alloc+0x12/0x20
[  633.510832]  ? kmem_cache_alloc+0x12e/0x760
[  633.515147]  ? copy_creds+0x7b/0x470
[  633.518855]  should_fail.cold.4+0xa/0x1a
[  633.522907]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.528003]  ? find_held_lock+0x36/0x1c0
[  633.532055]  ? find_held_lock+0x36/0x1c0
[  633.536105]  ? check_same_owner+0x340/0x340
[  633.540409]  ? rcu_is_watching+0x8c/0x150
[  633.544538]  ? rcu_note_context_switch+0x730/0x730
[  633.549452]  ? security_prepare_creds+0x94/0xc0
[  633.554103]  __should_failslab+0x124/0x180
[  633.558321]  should_failslab+0x9/0x14
[  633.562109]  kmem_cache_alloc+0x2af/0x760
[  633.566236]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  633.571238]  __delayacct_tsk_init+0x20/0x80
[  633.575544]  copy_process.part.39+0x2ba8/0x7250
[  633.580196]  ? __lock_acquire+0x7fc/0x5020
[  633.584414]  ? __lock_acquire+0x7fc/0x5020
[  633.588630]  ? __lock_acquire+0x7fc/0x5020
[  633.592861]  ? __cleanup_sighand+0x70/0x70
[  633.597084]  ? debug_check_no_locks_freed+0x310/0x310
[  633.602265]  ? debug_check_no_locks_freed+0x310/0x310
[  633.607437]  ? print_usage_bug+0xc0/0xc0
[  633.611490]  ? print_usage_bug+0xc0/0xc0
[  633.615530]  ? d_splice_alias+0x7c9/0x11f0
[  633.619754]  ? lock_downgrade+0x8f0/0x8f0
[  633.623880]  ? d_instantiate_anon+0x30/0x30
[  633.628189]  ? __lock_acquire+0x7fc/0x5020
[  633.632407]  ? print_usage_bug+0xc0/0xc0
[  633.636459]  ? debug_check_no_locks_freed+0x310/0x310
[  633.641636]  ? debug_check_no_locks_freed+0x310/0x310
[  633.646811]  ? __lock_acquire+0x7fc/0x5020
[  633.651027]  ? print_usage_bug+0xc0/0xc0
[  633.655071]  ? lock_downgrade+0x8f0/0x8f0
[  633.659206]  ? debug_check_no_locks_freed+0x310/0x310
[  633.664379]  ? print_usage_bug+0xc0/0xc0
[  633.668435]  ? graph_lock+0x170/0x170
[  633.672226]  ? do_raw_spin_lock+0xc1/0x200
[  633.676443]  ? graph_lock+0x170/0x170
[  633.680226]  ? graph_lock+0x170/0x170
[  633.684016]  ? find_held_lock+0x36/0x1c0
[  633.688057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.693576]  ? _parse_integer+0x13b/0x190
[  633.697705]  ? graph_lock+0x170/0x170
[  633.701485]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  633.707003]  ? _kstrtoull+0x188/0x250
[  633.710794]  ? _parse_integer+0x190/0x190
[  633.714920]  ? graph_lock+0x170/0x170
[  633.718713]  ? lock_release+0xa30/0xa30
[  633.722682]  ? find_held_lock+0x36/0x1c0
[  633.726727]  ? lock_downgrade+0x8f0/0x8f0
[  633.730870]  ? kasan_check_read+0x11/0x20
[  633.735003]  ? rcu_is_watching+0x8c/0x150
[  633.739135]  ? pid_task+0x115/0x200
[  633.742745]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  633.747141]  ? save_stack+0xa9/0xd0
[  633.750752]  ? graph_lock+0x170/0x170
[  633.754888]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  633.760415]  ? proc_fail_nth_write+0x9e/0x210
[  633.764893]  ? proc_cwd_link+0x1d0/0x1d0
[  633.768935]  ? kasan_check_read+0x11/0x20
[  633.773069]  ? find_held_lock+0x36/0x1c0
[  633.777118]  _do_fork+0x291/0x12a0
[  633.780653]  ? fork_idle+0x1a0/0x1a0
[  633.784352]  ? __lock_is_held+0xb5/0x140
[  633.788403]  ? __sb_end_write+0xac/0xe0
[  633.792365]  ? vfs_write+0x2a8/0x560
[  633.796063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.801581]  ? ksys_write+0x1ae/0x260
[  633.805359]  ? __ia32_sys_read+0xb0/0xb0
[  633.809404]  ? syscall_slow_exit_work+0x500/0x500
[  633.814238]  __x64_sys_clone+0xbf/0x150
[  633.818194]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  633.823212]  do_syscall_64+0x1b9/0x820
[  633.827087]  ? syscall_return_slowpath+0x5e0/0x5e0
[  633.831996]  ? syscall_return_slowpath+0x31d/0x5e0
[  633.836923]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  633.842272]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  633.847111]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  633.852282] RIP: 0033:0x441519
executing program
[  633.855457] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  633.874636] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  633.882341] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  633.889597] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  633.896859] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  633.904118] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  633.911370] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  633.922065] FAULT_INJECTION: forcing a failure.
[  633.922065] name failslab, interval 1, probability 0, space 0, times 0
[  633.933361] CPU: 0 PID: 4546 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  633.940444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  633.949779] Call Trace:
[  633.952353]  dump_stack+0x1c9/0x2b4
[  633.955975]  ? dump_stack_print_info.cold.2+0x52/0x52
[  633.961155]  ? save_stack+0x43/0xd0
[  633.964761]  ? kasan_kmalloc+0xc4/0xe0
[  633.968631]  ? kasan_slab_alloc+0x12/0x20
[  633.972763]  ? kmem_cache_alloc+0x12e/0x760
[  633.977086]  ? copy_creds+0x7b/0x470
[  633.980803]  should_fail.cold.4+0xa/0x1a
[  633.984849]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.989939]  ? find_held_lock+0x36/0x1c0
[  633.993989]  ? find_held_lock+0x36/0x1c0
[  633.998040]  ? check_same_owner+0x340/0x340
[  634.002345]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  634.007094]  ? rcu_note_context_switch+0x730/0x730
[  634.012017]  ? security_prepare_creds+0x94/0xc0
[  634.016673]  __should_failslab+0x124/0x180
[  634.020896]  should_failslab+0x9/0x14
[  634.024678]  kmem_cache_alloc+0x2af/0x760
[  634.028823]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  634.033826]  __delayacct_tsk_init+0x20/0x80
[  634.038141]  copy_process.part.39+0x2ba8/0x7250
[  634.042795]  ? __lock_acquire+0x7fc/0x5020
[  634.047023]  ? __lock_acquire+0x7fc/0x5020
[  634.051239]  ? __lock_acquire+0x7fc/0x5020
[  634.055462]  ? __cleanup_sighand+0x70/0x70
[  634.059682]  ? debug_check_no_locks_freed+0x310/0x310
[  634.064862]  ? debug_check_no_locks_freed+0x310/0x310
[  634.070045]  ? print_usage_bug+0xc0/0xc0
[  634.074086]  ? print_usage_bug+0xc0/0xc0
[  634.078134]  ? d_splice_alias+0x7c9/0x11f0
[  634.082348]  ? lock_downgrade+0x8f0/0x8f0
[  634.086482]  ? d_instantiate_anon+0x30/0x30
[  634.090789]  ? __lock_acquire+0x7fc/0x5020
[  634.095008]  ? print_usage_bug+0xc0/0xc0
[  634.099055]  ? debug_check_no_locks_freed+0x310/0x310
[  634.104237]  ? debug_check_no_locks_freed+0x310/0x310
[  634.109412]  ? __lock_acquire+0x7fc/0x5020
[  634.113627]  ? print_usage_bug+0xc0/0xc0
[  634.117677]  ? lock_downgrade+0x8f0/0x8f0
[  634.122699]  ? debug_check_no_locks_freed+0x310/0x310
[  634.127915]  ? print_usage_bug+0xc0/0xc0
[  634.131969]  ? graph_lock+0x170/0x170
[  634.135756]  ? do_raw_spin_lock+0xc1/0x200
[  634.139980]  ? graph_lock+0x170/0x170
[  634.143783]  ? graph_lock+0x170/0x170
[  634.147571]  ? find_held_lock+0x36/0x1c0
[  634.151618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.157143]  ? _parse_integer+0x13b/0x190
[  634.161282]  ? graph_lock+0x170/0x170
[  634.165072]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  634.170594]  ? _kstrtoull+0x188/0x250
[  634.174379]  ? _parse_integer+0x190/0x190
[  634.178513]  ? graph_lock+0x170/0x170
[  634.182308]  ? lock_release+0xa30/0xa30
[  634.186272]  ? find_held_lock+0x36/0x1c0
[  634.190334]  ? lock_downgrade+0x8f0/0x8f0
[  634.194479]  ? kasan_check_read+0x11/0x20
[  634.198623]  ? rcu_is_watching+0x8c/0x150
[  634.202758]  ? pid_task+0x115/0x200
[  634.206369]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  634.210763]  ? save_stack+0xa9/0xd0
[  634.214383]  ? graph_lock+0x170/0x170
[  634.218184]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  634.223703]  ? proc_fail_nth_write+0x9e/0x210
[  634.228185]  ? proc_cwd_link+0x1d0/0x1d0
[  634.232231]  ? kasan_check_read+0x11/0x20
[  634.236385]  ? find_held_lock+0x36/0x1c0
[  634.240436]  _do_fork+0x291/0x12a0
[  634.243978]  ? fork_idle+0x1a0/0x1a0
[  634.247684]  ? __lock_is_held+0xb5/0x140
[  634.251737]  ? __sb_end_write+0xac/0xe0
[  634.255705]  ? vfs_write+0x2a8/0x560
[  634.259407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.264940]  ? ksys_write+0x1ae/0x260
[  634.268724]  ? __ia32_sys_read+0xb0/0xb0
[  634.272771]  ? syscall_slow_exit_work+0x500/0x500
[  634.277602]  __x64_sys_clone+0xbf/0x150
[  634.281562]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  634.286573]  do_syscall_64+0x1b9/0x820
[  634.290444]  ? syscall_return_slowpath+0x5e0/0x5e0
[  634.295379]  ? syscall_return_slowpath+0x31d/0x5e0
[  634.300307]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  634.305670]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.310514]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  634.315696] RIP: 0033:0x441519
[  634.318874] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  634.338060] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  634.345759] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  634.353019] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  634.360280] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  634.367532] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  634.375428] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  634.387687] FAULT_INJECTION: forcing a failure.
[  634.387687] name failslab, interval 1, probability 0, space 0, times 0
[  634.398990] CPU: 1 PID: 4548 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  634.406094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  634.415436] Call Trace:
[  634.418022]  dump_stack+0x1c9/0x2b4
[  634.421649]  ? dump_stack_print_info.cold.2+0x52/0x52
[  634.426841]  ? save_stack+0x43/0xd0
[  634.430456]  ? kasan_kmalloc+0xc4/0xe0
[  634.434329]  ? kasan_slab_alloc+0x12/0x20
[  634.438477]  ? kmem_cache_alloc+0x12e/0x760
[  634.442784]  ? copy_creds+0x7b/0x470
[  634.446488]  should_fail.cold.4+0xa/0x1a
[  634.450537]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  634.455632]  ? find_held_lock+0x36/0x1c0
[  634.459701]  ? find_held_lock+0x36/0x1c0
[  634.463758]  ? check_same_owner+0x340/0x340
[  634.468071]  ? rcu_is_watching+0x8c/0x150
[  634.472208]  ? rcu_note_context_switch+0x730/0x730
[  634.477132]  ? security_prepare_creds+0x94/0xc0
[  634.481787]  __should_failslab+0x124/0x180
[  634.486010]  should_failslab+0x9/0x14
[  634.489808]  kmem_cache_alloc+0x2af/0x760
[  634.493944]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  634.498962]  __delayacct_tsk_init+0x20/0x80
[  634.503287]  copy_process.part.39+0x2ba8/0x7250
[  634.507954]  ? __lock_acquire+0x7fc/0x5020
[  634.512199]  ? __lock_acquire+0x7fc/0x5020
[  634.516428]  ? __lock_acquire+0x7fc/0x5020
[  634.520664]  ? __cleanup_sighand+0x70/0x70
[  634.524900]  ? debug_check_no_locks_freed+0x310/0x310
[  634.530081]  ? debug_check_no_locks_freed+0x310/0x310
[  634.535265]  ? print_usage_bug+0xc0/0xc0
[  634.539312]  ? print_usage_bug+0xc0/0xc0
[  634.543359]  ? d_splice_alias+0x7c9/0x11f0
[  634.547577]  ? lock_downgrade+0x8f0/0x8f0
[  634.551710]  ? d_instantiate_anon+0x30/0x30
[  634.556019]  ? __lock_acquire+0x7fc/0x5020
[  634.560241]  ? print_usage_bug+0xc0/0xc0
[  634.564290]  ? debug_check_no_locks_freed+0x310/0x310
[  634.569477]  ? debug_check_no_locks_freed+0x310/0x310
[  634.574680]  ? __lock_acquire+0x7fc/0x5020
[  634.578923]  ? print_usage_bug+0xc0/0xc0
[  634.582974]  ? lock_downgrade+0x8f0/0x8f0
[  634.587120]  ? debug_check_no_locks_freed+0x310/0x310
[  634.592305]  ? print_usage_bug+0xc0/0xc0
[  634.596360]  ? graph_lock+0x170/0x170
[  634.600162]  ? do_raw_spin_lock+0xc1/0x200
[  634.604391]  ? graph_lock+0x170/0x170
[  634.608187]  ? graph_lock+0x170/0x170
[  634.611978]  ? find_held_lock+0x36/0x1c0
[  634.616033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.621555]  ? _parse_integer+0x13b/0x190
[  634.625689]  ? graph_lock+0x170/0x170
[  634.629475]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  634.635099]  ? _kstrtoull+0x188/0x250
[  634.638890]  ? _parse_integer+0x190/0x190
[  634.643036]  ? graph_lock+0x170/0x170
[  634.646842]  ? lock_release+0xa30/0xa30
[  634.650802]  ? find_held_lock+0x36/0x1c0
[  634.654855]  ? lock_downgrade+0x8f0/0x8f0
[  634.658992]  ? kasan_check_read+0x11/0x20
[  634.663135]  ? rcu_is_watching+0x8c/0x150
[  634.667272]  ? pid_task+0x115/0x200
[  634.670904]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  634.675298]  ? save_stack+0xa9/0xd0
[  634.678906]  ? graph_lock+0x170/0x170
[  634.682693]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  634.688225]  ? proc_fail_nth_write+0x9e/0x210
[  634.692704]  ? proc_cwd_link+0x1d0/0x1d0
[  634.696784]  ? kasan_check_read+0x11/0x20
[  634.700931]  ? find_held_lock+0x36/0x1c0
[  634.704993]  _do_fork+0x291/0x12a0
[  634.708522]  ? fork_idle+0x1a0/0x1a0
[  634.712222]  ? __lock_is_held+0xb5/0x140
[  634.716274]  ? __sb_end_write+0xac/0xe0
[  634.720230]  ? vfs_write+0x2a8/0x560
[  634.723940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.729458]  ? ksys_write+0x1ae/0x260
[  634.733256]  ? __ia32_sys_read+0xb0/0xb0
[  634.737305]  ? syscall_slow_exit_work+0x500/0x500
[  634.742138]  __x64_sys_clone+0xbf/0x150
[  634.746101]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  634.751115]  do_syscall_64+0x1b9/0x820
[  634.754996]  ? syscall_return_slowpath+0x5e0/0x5e0
[  634.759951]  ? syscall_return_slowpath+0x31d/0x5e0
[  634.764897]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  634.770261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.775105]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  634.780290] RIP: 0033:0x441519
[  634.783459] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  634.802634] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  634.810330] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  634.817595] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  634.824859] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  634.832119] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  634.839378] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  634.852159] FAULT_INJECTION: forcing a failure.
[  634.852159] name failslab, interval 1, probability 0, space 0, times 0
[  634.863431] CPU: 1 PID: 4550 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  634.870542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  634.879878] Call Trace:
[  634.882456]  dump_stack+0x1c9/0x2b4
[  634.886076]  ? dump_stack_print_info.cold.2+0x52/0x52
[  634.891256]  ? save_stack+0x43/0xd0
[  634.894867]  ? kasan_kmalloc+0xc4/0xe0
[  634.898735]  ? kasan_slab_alloc+0x12/0x20
[  634.902863]  ? kmem_cache_alloc+0x12e/0x760
[  634.907170]  ? copy_creds+0x7b/0x470
[  634.910869]  should_fail.cold.4+0xa/0x1a
[  634.914912]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  634.919998]  ? find_held_lock+0x36/0x1c0
[  634.924056]  ? find_held_lock+0x36/0x1c0
[  634.928111]  ? check_same_owner+0x340/0x340
[  634.932412]  ? rcu_is_watching+0x8c/0x150
[  634.936540]  ? rcu_note_context_switch+0x730/0x730
[  634.941453]  ? security_prepare_creds+0x94/0xc0
[  634.946127]  __should_failslab+0x124/0x180
[  634.950446]  should_failslab+0x9/0x14
[  634.954230]  kmem_cache_alloc+0x2af/0x760
[  634.958364]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  634.963400]  __delayacct_tsk_init+0x20/0x80
[  634.967712]  copy_process.part.39+0x2ba8/0x7250
[  634.972376]  ? __lock_acquire+0x7fc/0x5020
[  634.976600]  ? __lock_acquire+0x7fc/0x5020
[  634.980821]  ? __lock_acquire+0x7fc/0x5020
[  634.985054]  ? __cleanup_sighand+0x70/0x70
[  634.989270]  ? debug_check_no_locks_freed+0x310/0x310
[  634.994444]  ? debug_check_no_locks_freed+0x310/0x310
[  634.999705]  ? print_usage_bug+0xc0/0xc0
[  635.003754]  ? print_usage_bug+0xc0/0xc0
[  635.007803]  ? d_splice_alias+0x7c9/0x11f0
[  635.012023]  ? lock_downgrade+0x8f0/0x8f0
[  635.016159]  ? d_instantiate_anon+0x30/0x30
[  635.020464]  ? __lock_acquire+0x7fc/0x5020
[  635.024694]  ? print_usage_bug+0xc0/0xc0
[  635.028756]  ? debug_check_no_locks_freed+0x310/0x310
[  635.033943]  ? debug_check_no_locks_freed+0x310/0x310
[  635.039116]  ? __lock_acquire+0x7fc/0x5020
[  635.043330]  ? print_usage_bug+0xc0/0xc0
[  635.047383]  ? lock_downgrade+0x8f0/0x8f0
[  635.051535]  ? debug_check_no_locks_freed+0x310/0x310
[  635.056741]  ? print_usage_bug+0xc0/0xc0
[  635.060808]  ? graph_lock+0x170/0x170
[  635.064600]  ? do_raw_spin_lock+0xc1/0x200
[  635.068822]  ? graph_lock+0x170/0x170
[  635.072606]  ? graph_lock+0x170/0x170
[  635.076393]  ? find_held_lock+0x36/0x1c0
[  635.080453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.085973]  ? _parse_integer+0x13b/0x190
[  635.090117]  ? graph_lock+0x170/0x170
[  635.093905]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  635.099439]  ? _kstrtoull+0x188/0x250
[  635.103222]  ? _parse_integer+0x190/0x190
[  635.107354]  ? graph_lock+0x170/0x170
[  635.111135]  ? lock_release+0xa30/0xa30
[  635.115096]  ? find_held_lock+0x36/0x1c0
[  635.119150]  ? lock_downgrade+0x8f0/0x8f0
[  635.123288]  ? kasan_check_read+0x11/0x20
[  635.127418]  ? rcu_is_watching+0x8c/0x150
[  635.131549]  ? pid_task+0x115/0x200
[  635.135158]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  635.139549]  ? save_stack+0xa9/0xd0
[  635.143157]  ? graph_lock+0x170/0x170
[  635.146951]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  635.152474]  ? proc_fail_nth_write+0x9e/0x210
[  635.156959]  ? proc_cwd_link+0x1d0/0x1d0
[  635.161030]  ? kasan_check_read+0x11/0x20
[  635.165172]  ? find_held_lock+0x36/0x1c0
[  635.169256]  _do_fork+0x291/0x12a0
[  635.172799]  ? fork_idle+0x1a0/0x1a0
[  635.176498]  ? __lock_is_held+0xb5/0x140
[  635.180550]  ? __sb_end_write+0xac/0xe0
[  635.184520]  ? vfs_write+0x2a8/0x560
[  635.188221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.193739]  ? ksys_write+0x1ae/0x260
[  635.198199]  ? __ia32_sys_read+0xb0/0xb0
[  635.202253]  ? syscall_slow_exit_work+0x500/0x500
[  635.207094]  __x64_sys_clone+0xbf/0x150
[  635.211059]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  635.216066]  do_syscall_64+0x1b9/0x820
[  635.219940]  ? syscall_return_slowpath+0x5e0/0x5e0
[  635.224850]  ? syscall_return_slowpath+0x31d/0x5e0
[  635.229769]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  635.235114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  635.239945]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  635.245116] RIP: 0033:0x441519
[  635.248284] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  635.267468] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  635.275174] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  635.282438] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  635.289717] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  635.296974] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  635.304225] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  635.316864] FAULT_INJECTION: forcing a failure.
[  635.316864] name failslab, interval 1, probability 0, space 0, times 0
[  635.328192] CPU: 0 PID: 4552 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  635.335280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  635.344615] Call Trace:
[  635.347192]  dump_stack+0x1c9/0x2b4
[  635.350806]  ? dump_stack_print_info.cold.2+0x52/0x52
[  635.355980]  ? save_stack+0x43/0xd0
[  635.359609]  ? kasan_kmalloc+0xc4/0xe0
[  635.363480]  ? kasan_slab_alloc+0x12/0x20
[  635.367626]  ? kmem_cache_alloc+0x12e/0x760
[  635.371958]  ? copy_creds+0x7b/0x470
[  635.375667]  should_fail.cold.4+0xa/0x1a
[  635.379716]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.384826]  ? find_held_lock+0x36/0x1c0
[  635.388899]  ? find_held_lock+0x36/0x1c0
[  635.393050]  ? check_same_owner+0x340/0x340
[  635.397354]  ? rcu_is_watching+0x8c/0x150
[  635.401493]  ? rcu_note_context_switch+0x730/0x730
[  635.406410]  ? security_prepare_creds+0x94/0xc0
[  635.411069]  __should_failslab+0x124/0x180
[  635.415299]  should_failslab+0x9/0x14
[  635.419088]  kmem_cache_alloc+0x2af/0x760
[  635.423217]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  635.428226]  __delayacct_tsk_init+0x20/0x80
[  635.432534]  copy_process.part.39+0x2ba8/0x7250
[  635.437363]  ? __lock_acquire+0x7fc/0x5020
[  635.441585]  ? __lock_acquire+0x7fc/0x5020
[  635.445804]  ? __lock_acquire+0x7fc/0x5020
[  635.450043]  ? __cleanup_sighand+0x70/0x70
[  635.454287]  ? debug_check_no_locks_freed+0x310/0x310
[  635.459458]  ? debug_check_no_locks_freed+0x310/0x310
[  635.464641]  ? print_usage_bug+0xc0/0xc0
[  635.468698]  ? print_usage_bug+0xc0/0xc0
[  635.472751]  ? d_splice_alias+0x7c9/0x11f0
[  635.476965]  ? lock_downgrade+0x8f0/0x8f0
[  635.481099]  ? d_instantiate_anon+0x30/0x30
[  635.485405]  ? __lock_acquire+0x7fc/0x5020
[  635.489624]  ? print_usage_bug+0xc0/0xc0
[  635.493681]  ? debug_check_no_locks_freed+0x310/0x310
[  635.498862]  ? debug_check_no_locks_freed+0x310/0x310
[  635.504041]  ? __lock_acquire+0x7fc/0x5020
[  635.508272]  ? print_usage_bug+0xc0/0xc0
[  635.512324]  ? lock_downgrade+0x8f0/0x8f0
[  635.516465]  ? debug_check_no_locks_freed+0x310/0x310
[  635.521641]  ? print_usage_bug+0xc0/0xc0
[  635.525796]  ? graph_lock+0x170/0x170
[  635.529583]  ? do_raw_spin_lock+0xc1/0x200
[  635.533802]  ? graph_lock+0x170/0x170
[  635.537586]  ? graph_lock+0x170/0x170
[  635.541372]  ? find_held_lock+0x36/0x1c0
[  635.545415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.550943]  ? _parse_integer+0x13b/0x190
[  635.555078]  ? graph_lock+0x170/0x170
[  635.558871]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  635.564410]  ? _kstrtoull+0x188/0x250
[  635.568198]  ? _parse_integer+0x190/0x190
[  635.572333]  ? graph_lock+0x170/0x170
[  635.576131]  ? lock_release+0xa30/0xa30
[  635.580088]  ? find_held_lock+0x36/0x1c0
[  635.584136]  ? lock_downgrade+0x8f0/0x8f0
[  635.588272]  ? kasan_check_read+0x11/0x20
[  635.592403]  ? rcu_is_watching+0x8c/0x150
[  635.596538]  ? pid_task+0x115/0x200
[  635.600149]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  635.604559]  ? save_stack+0xa9/0xd0
[  635.608171]  ? graph_lock+0x170/0x170
[  635.611959]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  635.617479]  ? proc_fail_nth_write+0x9e/0x210
[  635.621956]  ? proc_cwd_link+0x1d0/0x1d0
[  635.626009]  ? kasan_check_read+0x11/0x20
[  635.630151]  ? find_held_lock+0x36/0x1c0
[  635.634208]  _do_fork+0x291/0x12a0
[  635.637746]  ? fork_idle+0x1a0/0x1a0
[  635.641446]  ? __lock_is_held+0xb5/0x140
[  635.645499]  ? __sb_end_write+0xac/0xe0
[  635.649453]  ? vfs_write+0x2a8/0x560
[  635.653157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.658682]  ? ksys_write+0x1ae/0x260
[  635.662477]  ? __ia32_sys_read+0xb0/0xb0
[  635.666532]  ? syscall_slow_exit_work+0x500/0x500
[  635.671361]  __x64_sys_clone+0xbf/0x150
[  635.675326]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  635.680329]  do_syscall_64+0x1b9/0x820
[  635.684216]  ? syscall_return_slowpath+0x5e0/0x5e0
[  635.689140]  ? syscall_return_slowpath+0x31d/0x5e0
[  635.694065]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  635.699425]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  635.704255]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  635.709431] RIP: 0033:0x441519
executing program
[  635.712601] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  635.731778] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  635.739486] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  635.746750] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  635.754010] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  635.761273] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  635.768531] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  635.780964] FAULT_INJECTION: forcing a failure.
[  635.780964] name failslab, interval 1, probability 0, space 0, times 0
[  635.792292] CPU: 0 PID: 4554 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  635.799378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  635.808716] Call Trace:
[  635.811316]  dump_stack+0x1c9/0x2b4
[  635.814927]  ? dump_stack_print_info.cold.2+0x52/0x52
[  635.820103]  ? save_stack+0x43/0xd0
[  635.823721]  ? kasan_kmalloc+0xc4/0xe0
[  635.827598]  ? kasan_slab_alloc+0x12/0x20
[  635.831726]  ? kmem_cache_alloc+0x12e/0x760
[  635.836036]  ? copy_creds+0x7b/0x470
[  635.839747]  should_fail.cold.4+0xa/0x1a
[  635.843801]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.848885]  ? find_held_lock+0x36/0x1c0
[  635.852943]  ? find_held_lock+0x36/0x1c0
[  635.856999]  ? check_same_owner+0x340/0x340
[  635.861309]  ? rcu_is_watching+0x8c/0x150
[  635.865450]  ? rcu_note_context_switch+0x730/0x730
[  635.870365]  ? security_prepare_creds+0x94/0xc0
[  635.875026]  __should_failslab+0x124/0x180
[  635.879252]  should_failslab+0x9/0x14
[  635.883038]  kmem_cache_alloc+0x2af/0x760
[  635.887169]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  635.892189]  __delayacct_tsk_init+0x20/0x80
[  635.896517]  copy_process.part.39+0x2ba8/0x7250
[  635.901180]  ? __lock_acquire+0x7fc/0x5020
[  635.905401]  ? __lock_acquire+0x7fc/0x5020
[  635.909637]  ? __lock_acquire+0x7fc/0x5020
[  635.913882]  ? __cleanup_sighand+0x70/0x70
[  635.918103]  ? debug_check_no_locks_freed+0x310/0x310
[  635.923277]  ? debug_check_no_locks_freed+0x310/0x310
[  635.928459]  ? print_usage_bug+0xc0/0xc0
[  635.932510]  ? print_usage_bug+0xc0/0xc0
[  635.936573]  ? d_splice_alias+0x7c9/0x11f0
[  635.940799]  ? lock_downgrade+0x8f0/0x8f0
[  635.944929]  ? d_instantiate_anon+0x30/0x30
[  635.949240]  ? __lock_acquire+0x7fc/0x5020
[  635.953469]  ? print_usage_bug+0xc0/0xc0
[  635.957537]  ? debug_check_no_locks_freed+0x310/0x310
[  635.962727]  ? debug_check_no_locks_freed+0x310/0x310
[  635.967928]  ? __lock_acquire+0x7fc/0x5020
[  635.972164]  ? print_usage_bug+0xc0/0xc0
[  635.976235]  ? lock_downgrade+0x8f0/0x8f0
[  635.980392]  ? debug_check_no_locks_freed+0x310/0x310
[  635.985575]  ? print_usage_bug+0xc0/0xc0
[  635.989642]  ? graph_lock+0x170/0x170
[  635.993442]  ? do_raw_spin_lock+0xc1/0x200
[  635.997672]  ? graph_lock+0x170/0x170
[  636.001459]  ? graph_lock+0x170/0x170
[  636.005262]  ? find_held_lock+0x36/0x1c0
[  636.009313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.014843]  ? _parse_integer+0x13b/0x190
[  636.018981]  ? graph_lock+0x170/0x170
[  636.022784]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.028304]  ? _kstrtoull+0x188/0x250
[  636.032110]  ? _parse_integer+0x190/0x190
[  636.036244]  ? graph_lock+0x170/0x170
[  636.040034]  ? lock_release+0xa30/0xa30
[  636.043992]  ? find_held_lock+0x36/0x1c0
[  636.048050]  ? lock_downgrade+0x8f0/0x8f0
[  636.052796]  ? kasan_check_read+0x11/0x20
[  636.056927]  ? rcu_is_watching+0x8c/0x150
[  636.061063]  ? pid_task+0x115/0x200
[  636.064681]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  636.069084]  ? save_stack+0xa9/0xd0
[  636.072711]  ? graph_lock+0x170/0x170
[  636.076498]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.082045]  ? proc_fail_nth_write+0x9e/0x210
[  636.086551]  ? proc_cwd_link+0x1d0/0x1d0
[  636.090614]  ? kasan_check_read+0x11/0x20
[  636.094754]  ? find_held_lock+0x36/0x1c0
[  636.098814]  _do_fork+0x291/0x12a0
[  636.102339]  ? fork_idle+0x1a0/0x1a0
[  636.106043]  ? __lock_is_held+0xb5/0x140
[  636.110102]  ? __sb_end_write+0xac/0xe0
[  636.114061]  ? vfs_write+0x2a8/0x560
[  636.117761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.123278]  ? ksys_write+0x1ae/0x260
[  636.127062]  ? __ia32_sys_read+0xb0/0xb0
[  636.131125]  ? syscall_slow_exit_work+0x500/0x500
[  636.135954]  __x64_sys_clone+0xbf/0x150
[  636.139912]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  636.144916]  do_syscall_64+0x1b9/0x820
[  636.148803]  ? syscall_slow_exit_work+0x500/0x500
[  636.153631]  ? syscall_return_slowpath+0x5e0/0x5e0
[  636.158562]  ? syscall_return_slowpath+0x31d/0x5e0
[  636.163499]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  636.168862]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  636.173699]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  636.178871] RIP: 0033:0x441519
[  636.182044] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  636.201222] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  636.208928] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  636.216204] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  636.223457] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  636.230714] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  636.237973] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  636.250939] FAULT_INJECTION: forcing a failure.
[  636.250939] name failslab, interval 1, probability 0, space 0, times 0
[  636.262280] CPU: 1 PID: 4556 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  636.269368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  636.278706] Call Trace:
[  636.281301]  dump_stack+0x1c9/0x2b4
[  636.284913]  ? dump_stack_print_info.cold.2+0x52/0x52
[  636.290088]  ? find_held_lock+0x36/0x1c0
[  636.294139]  should_fail.cold.4+0xa/0x1a
[  636.298185]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  636.303279]  ? find_held_lock+0x36/0x1c0
[  636.307337]  ? check_same_owner+0x340/0x340
[  636.311656]  ? rcu_note_context_switch+0x730/0x730
[  636.316588]  __should_failslab+0x124/0x180
[  636.320815]  should_failslab+0x9/0x14
[  636.324597]  kmem_cache_alloc+0x2af/0x760
[  636.328727]  ? __mutex_init+0x1f7/0x290
[  636.332698]  dup_fd+0x11c/0xf60
[  636.335962]  ? kasan_check_read+0x11/0x20
[  636.340094]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.345614]  ? audit_alloc+0xf0/0x930
[  636.349398]  ? ksys_dup3+0x690/0x690
[  636.353103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.358652]  ? perf_event_init_task+0x1f8/0x870
[  636.363353]  ? sched_fork+0x468/0xb40
[  636.367163]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.372697]  ? copy_semundo+0xca/0x360
[  636.376578]  ? __ia32_sys_semop+0xb0/0xb0
[  636.380721]  ? __raw_spin_lock_init+0x1c/0x100
[  636.385294]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  636.390310]  ? __lockdep_init_map+0x105/0x590
[  636.394796]  copy_process.part.39+0x1e40/0x7250
[  636.399452]  ? __lock_acquire+0x7fc/0x5020
[  636.403677]  ? __lock_acquire+0x7fc/0x5020
[  636.407894]  ? __lock_acquire+0x7fc/0x5020
[  636.412118]  ? __cleanup_sighand+0x70/0x70
[  636.416350]  ? debug_check_no_locks_freed+0x310/0x310
[  636.421539]  ? print_usage_bug+0xc0/0xc0
[  636.425588]  ? print_usage_bug+0xc0/0xc0
[  636.429634]  ? d_splice_alias+0x7c9/0x11f0
[  636.433854]  ? lock_downgrade+0x8f0/0x8f0
[  636.437989]  ? d_instantiate_anon+0x30/0x30
[  636.442314]  ? __lock_acquire+0x7fc/0x5020
[  636.446536]  ? print_usage_bug+0xc0/0xc0
[  636.450585]  ? debug_check_no_locks_freed+0x310/0x310
[  636.455776]  ? debug_check_no_locks_freed+0x310/0x310
[  636.460972]  ? __lock_acquire+0x7fc/0x5020
[  636.465193]  ? print_usage_bug+0xc0/0xc0
[  636.469249]  ? lock_downgrade+0x8f0/0x8f0
[  636.473401]  ? print_usage_bug+0xc0/0xc0
[  636.477447]  ? graph_lock+0x170/0x170
[  636.481230]  ? do_raw_spin_lock+0xc1/0x200
[  636.485467]  ? graph_lock+0x170/0x170
[  636.489263]  ? find_held_lock+0x36/0x1c0
[  636.493312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.498844]  ? _parse_integer+0x13b/0x190
[  636.502980]  ? graph_lock+0x170/0x170
[  636.506771]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.512294]  ? _kstrtoull+0x188/0x250
[  636.516083]  ? _parse_integer+0x190/0x190
[  636.520914]  ? graph_lock+0x170/0x170
[  636.524700]  ? lock_release+0xa30/0xa30
[  636.528680]  ? find_held_lock+0x36/0x1c0
[  636.532745]  ? lock_downgrade+0x8f0/0x8f0
[  636.536891]  ? kasan_check_read+0x11/0x20
[  636.541031]  ? rcu_is_watching+0x8c/0x150
[  636.545178]  ? pid_task+0x115/0x200
[  636.548790]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  636.553210]  ? save_stack+0xa9/0xd0
[  636.556837]  ? graph_lock+0x170/0x170
[  636.560636]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.566188]  ? proc_fail_nth_write+0x9e/0x210
[  636.570813]  ? proc_cwd_link+0x1d0/0x1d0
[  636.574874]  ? kasan_check_read+0x11/0x20
[  636.579017]  ? find_held_lock+0x36/0x1c0
[  636.583089]  _do_fork+0x291/0x12a0
[  636.586619]  ? fork_idle+0x1a0/0x1a0
[  636.590322]  ? __lock_is_held+0xb5/0x140
[  636.594386]  ? __sb_end_write+0xac/0xe0
[  636.598345]  ? vfs_write+0x2a8/0x560
[  636.602057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.607596]  ? ksys_write+0x1ae/0x260
[  636.611384]  ? __ia32_sys_read+0xb0/0xb0
[  636.615435]  ? syscall_slow_exit_work+0x500/0x500
[  636.620266]  __x64_sys_clone+0xbf/0x150
[  636.624228]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  636.629234]  do_syscall_64+0x1b9/0x820
[  636.633111]  ? syscall_return_slowpath+0x5e0/0x5e0
[  636.638036]  ? syscall_return_slowpath+0x31d/0x5e0
[  636.642981]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  636.648333]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  636.653165]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  636.658339] RIP: 0033:0x441519
[  636.661518] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  636.680702] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  636.688400] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  636.695658] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  636.702911] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  636.710170] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  636.717428] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  636.728534] FAULT_INJECTION: forcing a failure.
[  636.728534] name failslab, interval 1, probability 0, space 0, times 0
[  636.739804] CPU: 1 PID: 4557 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  636.746891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  636.756230] Call Trace:
[  636.758826]  dump_stack+0x1c9/0x2b4
[  636.762445]  ? dump_stack_print_info.cold.2+0x52/0x52
[  636.767714]  ? find_held_lock+0x36/0x1c0
[  636.771768]  should_fail.cold.4+0xa/0x1a
[  636.775817]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  636.780914]  ? find_held_lock+0x36/0x1c0
[  636.784967]  ? check_same_owner+0x340/0x340
[  636.789278]  ? rcu_note_context_switch+0x730/0x730
[  636.794194]  __should_failslab+0x124/0x180
[  636.798425]  should_failslab+0x9/0x14
[  636.802212]  kmem_cache_alloc+0x2af/0x760
[  636.806356]  ? __mutex_init+0x1f7/0x290
[  636.810317]  dup_fd+0x11c/0xf60
[  636.813582]  ? kasan_check_read+0x11/0x20
[  636.817718]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.823241]  ? audit_alloc+0xf0/0x930
[  636.827039]  ? ksys_dup3+0x690/0x690
[  636.830762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.836284]  ? perf_event_init_task+0x1f8/0x870
[  636.840935]  ? sched_fork+0x468/0xb40
[  636.844724]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.850251]  ? copy_semundo+0xca/0x360
[  636.854134]  ? __ia32_sys_semop+0xb0/0xb0
[  636.858266]  ? __raw_spin_lock_init+0x1c/0x100
[  636.862834]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  636.867857]  ? __lockdep_init_map+0x105/0x590
[  636.872340]  copy_process.part.39+0x1e40/0x7250
[  636.877005]  ? __lock_acquire+0x7fc/0x5020
[  636.881232]  ? __lock_acquire+0x7fc/0x5020
[  636.885445]  ? __lock_acquire+0x7fc/0x5020
[  636.889669]  ? __cleanup_sighand+0x70/0x70
[  636.893887]  ? debug_check_no_locks_freed+0x310/0x310
[  636.899060]  ? print_usage_bug+0xc0/0xc0
[  636.903120]  ? print_usage_bug+0xc0/0xc0
[  636.907186]  ? d_splice_alias+0x7c9/0x11f0
[  636.911406]  ? lock_downgrade+0x8f0/0x8f0
[  636.915540]  ? d_instantiate_anon+0x30/0x30
[  636.919857]  ? __lock_acquire+0x7fc/0x5020
[  636.924084]  ? print_usage_bug+0xc0/0xc0
[  636.928144]  ? debug_check_no_locks_freed+0x310/0x310
[  636.933319]  ? debug_check_no_locks_freed+0x310/0x310
[  636.938495]  ? __lock_acquire+0x7fc/0x5020
[  636.942728]  ? print_usage_bug+0xc0/0xc0
[  636.946771]  ? lock_downgrade+0x8f0/0x8f0
[  636.950909]  ? print_usage_bug+0xc0/0xc0
[  636.954952]  ? graph_lock+0x170/0x170
[  636.958737]  ? do_raw_spin_lock+0xc1/0x200
[  636.962962]  ? graph_lock+0x170/0x170
[  636.966754]  ? find_held_lock+0x36/0x1c0
[  636.970799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.976323]  ? _parse_integer+0x13b/0x190
[  636.980468]  ? graph_lock+0x170/0x170
[  636.984256]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  636.989788]  ? _kstrtoull+0x188/0x250
[  636.993573]  ? _parse_integer+0x190/0x190
[  636.997707]  ? graph_lock+0x170/0x170
[  637.001491]  ? lock_release+0xa30/0xa30
[  637.005452]  ? find_held_lock+0x36/0x1c0
[  637.009504]  ? lock_downgrade+0x8f0/0x8f0
[  637.013657]  ? kasan_check_read+0x11/0x20
[  637.017785]  ? rcu_is_watching+0x8c/0x150
[  637.021917]  ? pid_task+0x115/0x200
[  637.025534]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  637.029926]  ? save_stack+0xa9/0xd0
[  637.033536]  ? graph_lock+0x170/0x170
[  637.037324]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  637.042857]  ? proc_fail_nth_write+0x9e/0x210
[  637.047344]  ? proc_cwd_link+0x1d0/0x1d0
[  637.051393]  ? kasan_check_read+0x11/0x20
[  637.055525]  ? find_held_lock+0x36/0x1c0
[  637.059592]  _do_fork+0x291/0x12a0
[  637.063117]  ? fork_idle+0x1a0/0x1a0
[  637.066828]  ? __lock_is_held+0xb5/0x140
[  637.070888]  ? __sb_end_write+0xac/0xe0
[  637.074841]  ? vfs_write+0x2a8/0x560
[  637.078542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.084070]  ? ksys_write+0x1ae/0x260
[  637.087862]  ? __ia32_sys_read+0xb0/0xb0
[  637.091917]  ? syscall_slow_exit_work+0x500/0x500
[  637.096766]  __x64_sys_clone+0xbf/0x150
[  637.100725]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  637.105726]  do_syscall_64+0x1b9/0x820
[  637.109599]  ? syscall_return_slowpath+0x5e0/0x5e0
[  637.114514]  ? syscall_return_slowpath+0x31d/0x5e0
[  637.119436]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  637.124787]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  637.129638]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  637.134812] RIP: 0033:0x441519
[  637.137978] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  637.157179] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  637.164881] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  637.172144] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  637.179400] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  637.186652] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  637.193907] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  637.208539] FAULT_INJECTION: forcing a failure.
[  637.208539] name failslab, interval 1, probability 0, space 0, times 0
[  637.219762] CPU: 1 PID: 4558 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  637.226844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  637.236177] Call Trace:
[  637.238765]  dump_stack+0x1c9/0x2b4
[  637.242389]  ? dump_stack_print_info.cold.2+0x52/0x52
[  637.247574]  ? save_stack+0x43/0xd0
[  637.251181]  ? kasan_kmalloc+0xc4/0xe0
[  637.255054]  ? kasan_slab_alloc+0x12/0x20
[  637.259190]  ? kmem_cache_alloc+0x12e/0x760
[  637.263509]  ? copy_creds+0x7b/0x470
[  637.267222]  should_fail.cold.4+0xa/0x1a
[  637.271284]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  637.276372]  ? find_held_lock+0x36/0x1c0
[  637.280437]  ? find_held_lock+0x36/0x1c0
[  637.284493]  ? check_same_owner+0x340/0x340
[  637.288794]  ? rcu_is_watching+0x8c/0x150
[  637.292934]  ? rcu_note_context_switch+0x730/0x730
[  637.297858]  ? security_prepare_creds+0x94/0xc0
[  637.302520]  __should_failslab+0x124/0x180
[  637.306753]  should_failslab+0x9/0x14
[  637.310538]  kmem_cache_alloc+0x2af/0x760
[  637.314670]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  637.319687]  __delayacct_tsk_init+0x20/0x80
[  637.324003]  copy_process.part.39+0x2ba8/0x7250
[  637.328668]  ? __lock_acquire+0x7fc/0x5020
[  637.332889]  ? __lock_acquire+0x7fc/0x5020
[  637.337104]  ? __lock_acquire+0x7fc/0x5020
[  637.341339]  ? __cleanup_sighand+0x70/0x70
[  637.345560]  ? debug_check_no_locks_freed+0x310/0x310
[  637.350732]  ? debug_check_no_locks_freed+0x310/0x310
[  637.355913]  ? print_usage_bug+0xc0/0xc0
[  637.359963]  ? print_usage_bug+0xc0/0xc0
[  637.364024]  ? d_splice_alias+0x7c9/0x11f0
[  637.368260]  ? lock_downgrade+0x8f0/0x8f0
[  637.372406]  ? d_instantiate_anon+0x30/0x30
[  637.376720]  ? __lock_acquire+0x7fc/0x5020
[  637.380947]  ? print_usage_bug+0xc0/0xc0
[  637.384999]  ? debug_check_no_locks_freed+0x310/0x310
[  637.390184]  ? debug_check_no_locks_freed+0x310/0x310
[  637.395372]  ? __lock_acquire+0x7fc/0x5020
[  637.399596]  ? print_usage_bug+0xc0/0xc0
[  637.403643]  ? lock_downgrade+0x8f0/0x8f0
[  637.407796]  ? debug_check_no_locks_freed+0x310/0x310
[  637.412987]  ? print_usage_bug+0xc0/0xc0
[  637.417052]  ? graph_lock+0x170/0x170
[  637.420838]  ? do_raw_spin_lock+0xc1/0x200
[  637.425062]  ? graph_lock+0x170/0x170
[  637.428846]  ? graph_lock+0x170/0x170
[  637.432638]  ? find_held_lock+0x36/0x1c0
[  637.436687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.442226]  ? _parse_integer+0x13b/0x190
[  637.446378]  ? graph_lock+0x170/0x170
[  637.450181]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  637.455703]  ? _kstrtoull+0x188/0x250
[  637.459505]  ? _parse_integer+0x190/0x190
[  637.463651]  ? graph_lock+0x170/0x170
[  637.467437]  ? lock_release+0xa30/0xa30
[  637.471408]  ? find_held_lock+0x36/0x1c0
[  637.475459]  ? lock_downgrade+0x8f0/0x8f0
[  637.479604]  ? kasan_check_read+0x11/0x20
[  637.483733]  ? rcu_is_watching+0x8c/0x150
[  637.487872]  ? pid_task+0x115/0x200
[  637.491484]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  637.495880]  ? save_stack+0xa9/0xd0
[  637.499496]  ? graph_lock+0x170/0x170
[  637.503295]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  637.508833]  ? proc_fail_nth_write+0x9e/0x210
[  637.513311]  ? proc_cwd_link+0x1d0/0x1d0
[  637.517359]  ? kasan_check_read+0x11/0x20
[  637.521492]  ? find_held_lock+0x36/0x1c0
[  637.525538]  _do_fork+0x291/0x12a0
[  637.529069]  ? fork_idle+0x1a0/0x1a0
[  637.532769]  ? __lock_is_held+0xb5/0x140
[  637.536834]  ? __sb_end_write+0xac/0xe0
[  637.540794]  ? vfs_write+0x2a8/0x560
[  637.544493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.550036]  ? ksys_write+0x1ae/0x260
[  637.553824]  ? __ia32_sys_read+0xb0/0xb0
[  637.557885]  ? syscall_slow_exit_work+0x500/0x500
[  637.562734]  __x64_sys_clone+0xbf/0x150
[  637.566717]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  637.571735]  do_syscall_64+0x1b9/0x820
[  637.575628]  ? syscall_return_slowpath+0x5e0/0x5e0
[  637.580543]  ? syscall_return_slowpath+0x31d/0x5e0
[  637.585464]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  637.590816]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  637.595659]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  637.600831] RIP: 0033:0x441519
[  637.603999] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  637.623236] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  637.630945] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  637.638201] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  637.645465] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  637.652725] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  637.659978] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  637.671859] FAULT_INJECTION: forcing a failure.
[  637.671859] name failslab, interval 1, probability 0, space 0, times 0
[  637.683099] CPU: 1 PID: 4560 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  637.690185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  637.699532] Call Trace:
[  637.702110]  dump_stack+0x1c9/0x2b4
[  637.705735]  ? dump_stack_print_info.cold.2+0x52/0x52
[  637.710918]  ? save_stack+0x43/0xd0
[  637.714533]  ? kasan_kmalloc+0xc4/0xe0
[  637.718401]  ? kasan_slab_alloc+0x12/0x20
[  637.722532]  ? kmem_cache_alloc+0x12e/0x760
[  637.726850]  ? copy_creds+0x7b/0x470
[  637.730562]  should_fail.cold.4+0xa/0x1a
[  637.734625]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  637.739717]  ? find_held_lock+0x36/0x1c0
[  637.743779]  ? find_held_lock+0x36/0x1c0
[  637.747837]  ? check_same_owner+0x340/0x340
[  637.752143]  ? rcu_is_watching+0x8c/0x150
[  637.756288]  ? rcu_note_context_switch+0x730/0x730
[  637.761221]  ? security_prepare_creds+0x94/0xc0
[  637.765912]  __should_failslab+0x124/0x180
[  637.770150]  should_failslab+0x9/0x14
[  637.773940]  kmem_cache_alloc+0x2af/0x760
[  637.778078]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  637.783088]  __delayacct_tsk_init+0x20/0x80
[  637.787395]  copy_process.part.39+0x2ba8/0x7250
[  637.792059]  ? __lock_acquire+0x7fc/0x5020
[  637.796286]  ? __lock_acquire+0x7fc/0x5020
[  637.800509]  ? __lock_acquire+0x7fc/0x5020
[  637.804732]  ? __cleanup_sighand+0x70/0x70
[  637.808975]  ? debug_check_no_locks_freed+0x310/0x310
[  637.814152]  ? debug_check_no_locks_freed+0x310/0x310
[  637.819329]  ? print_usage_bug+0xc0/0xc0
[  637.823376]  ? print_usage_bug+0xc0/0xc0
[  637.827435]  ? d_splice_alias+0x7c9/0x11f0
[  637.831652]  ? lock_downgrade+0x8f0/0x8f0
[  637.835892]  ? d_instantiate_anon+0x30/0x30
[  637.840223]  ? __lock_acquire+0x7fc/0x5020
[  637.844461]  ? print_usage_bug+0xc0/0xc0
[  637.848520]  ? debug_check_no_locks_freed+0x310/0x310
[  637.853696]  ? debug_check_no_locks_freed+0x310/0x310
[  637.858873]  ? __lock_acquire+0x7fc/0x5020
[  637.863090]  ? print_usage_bug+0xc0/0xc0
[  637.867133]  ? lock_downgrade+0x8f0/0x8f0
[  637.871281]  ? debug_check_no_locks_freed+0x310/0x310
[  637.876469]  ? print_usage_bug+0xc0/0xc0
[  637.880516]  ? graph_lock+0x170/0x170
[  637.884298]  ? do_raw_spin_lock+0xc1/0x200
[  637.888517]  ? graph_lock+0x170/0x170
[  637.892299]  ? graph_lock+0x170/0x170
[  637.896111]  ? find_held_lock+0x36/0x1c0
[  637.900158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.905689]  ? _parse_integer+0x13b/0x190
[  637.909832]  ? graph_lock+0x170/0x170
[  637.913619]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  637.919143]  ? _kstrtoull+0x188/0x250
[  637.922926]  ? _parse_integer+0x190/0x190
[  637.927065]  ? graph_lock+0x170/0x170
[  637.930861]  ? lock_release+0xa30/0xa30
[  637.934819]  ? find_held_lock+0x36/0x1c0
[  637.938880]  ? lock_downgrade+0x8f0/0x8f0
[  637.943027]  ? kasan_check_read+0x11/0x20
[  637.947163]  ? rcu_is_watching+0x8c/0x150
[  637.951296]  ? pid_task+0x115/0x200
[  637.954906]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  637.959317]  ? save_stack+0xa9/0xd0
[  637.962936]  ? graph_lock+0x170/0x170
[  637.966738]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  637.972265]  ? proc_fail_nth_write+0x9e/0x210
[  637.976747]  ? proc_cwd_link+0x1d0/0x1d0
[  637.980796]  ? kasan_check_read+0x11/0x20
[  637.984933]  ? find_held_lock+0x36/0x1c0
[  637.988980]  _do_fork+0x291/0x12a0
[  637.992509]  ? fork_idle+0x1a0/0x1a0
[  637.996207]  ? __lock_is_held+0xb5/0x140
[  638.000260]  ? __sb_end_write+0xac/0xe0
[  638.004230]  ? vfs_write+0x2a8/0x560
[  638.007951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.013490]  ? ksys_write+0x1ae/0x260
[  638.017276]  ? __ia32_sys_read+0xb0/0xb0
[  638.021328]  ? syscall_slow_exit_work+0x500/0x500
[  638.026168]  __x64_sys_clone+0xbf/0x150
[  638.030127]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  638.035145]  do_syscall_64+0x1b9/0x820
[  638.039027]  ? syscall_return_slowpath+0x5e0/0x5e0
[  638.043953]  ? syscall_return_slowpath+0x31d/0x5e0
[  638.048878]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  638.054231]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  638.059064]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  638.064237] RIP: 0033:0x441519
[  638.067404] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  638.086592] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  638.094314] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  638.101570] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  638.108823] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  638.116081] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  638.123340] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  638.134622] FAULT_INJECTION: forcing a failure.
[  638.134622] name failslab, interval 1, probability 0, space 0, times 0
[  638.145930] CPU: 1 PID: 4562 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  638.153025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  638.162373] Call Trace:
[  638.164973]  dump_stack+0x1c9/0x2b4
[  638.168597]  ? dump_stack_print_info.cold.2+0x52/0x52
[  638.174564]  ? save_stack+0x43/0xd0
[  638.178173]  ? kasan_kmalloc+0xc4/0xe0
[  638.182054]  ? kasan_slab_alloc+0x12/0x20
[  638.186190]  ? kmem_cache_alloc+0x12e/0x760
[  638.190503]  ? copy_creds+0x7b/0x470
[  638.194204]  should_fail.cold.4+0xa/0x1a
[  638.198272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  638.203375]  ? find_held_lock+0x36/0x1c0
[  638.207425]  ? find_held_lock+0x36/0x1c0
[  638.211478]  ? check_same_owner+0x340/0x340
[  638.215793]  ? rcu_is_watching+0x8c/0x150
[  638.219936]  ? rcu_note_context_switch+0x730/0x730
[  638.224850]  ? security_prepare_creds+0x94/0xc0
[  638.229520]  __should_failslab+0x124/0x180
[  638.233758]  should_failslab+0x9/0x14
[  638.237549]  kmem_cache_alloc+0x2af/0x760
[  638.241679]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  638.246686]  __delayacct_tsk_init+0x20/0x80
[  638.250996]  copy_process.part.39+0x2ba8/0x7250
[  638.255674]  ? __lock_acquire+0x7fc/0x5020
[  638.259896]  ? __lock_acquire+0x7fc/0x5020
[  638.264113]  ? __lock_acquire+0x7fc/0x5020
[  638.268350]  ? __cleanup_sighand+0x70/0x70
[  638.272570]  ? debug_check_no_locks_freed+0x310/0x310
[  638.277750]  ? debug_check_no_locks_freed+0x310/0x310
[  638.282926]  ? print_usage_bug+0xc0/0xc0
[  638.286984]  ? print_usage_bug+0xc0/0xc0
[  638.291046]  ? d_splice_alias+0x7c9/0x11f0
[  638.295285]  ? lock_downgrade+0x8f0/0x8f0
[  638.299420]  ? d_instantiate_anon+0x30/0x30
[  638.303748]  ? __lock_acquire+0x7fc/0x5020
[  638.307972]  ? print_usage_bug+0xc0/0xc0
[  638.312035]  ? debug_check_no_locks_freed+0x310/0x310
[  638.317219]  ? debug_check_no_locks_freed+0x310/0x310
[  638.322396]  ? __lock_acquire+0x7fc/0x5020
[  638.326617]  ? print_usage_bug+0xc0/0xc0
[  638.330673]  ? lock_downgrade+0x8f0/0x8f0
[  638.334813]  ? debug_check_no_locks_freed+0x310/0x310
[  638.339997]  ? print_usage_bug+0xc0/0xc0
[  638.344051]  ? graph_lock+0x170/0x170
[  638.347849]  ? do_raw_spin_lock+0xc1/0x200
[  638.352068]  ? graph_lock+0x170/0x170
[  638.355870]  ? graph_lock+0x170/0x170
[  638.359668]  ? find_held_lock+0x36/0x1c0
[  638.363734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.369272]  ? _parse_integer+0x13b/0x190
[  638.373407]  ? graph_lock+0x170/0x170
[  638.377195]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  638.382717]  ? _kstrtoull+0x188/0x250
[  638.386507]  ? _parse_integer+0x190/0x190
[  638.390643]  ? graph_lock+0x170/0x170
[  638.394433]  ? lock_release+0xa30/0xa30
[  638.398397]  ? find_held_lock+0x36/0x1c0
[  638.402449]  ? lock_downgrade+0x8f0/0x8f0
[  638.406588]  ? kasan_check_read+0x11/0x20
[  638.410725]  ? rcu_is_watching+0x8c/0x150
[  638.414870]  ? pid_task+0x115/0x200
[  638.418479]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  638.422873]  ? save_stack+0xa9/0xd0
[  638.426488]  ? graph_lock+0x170/0x170
[  638.430276]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  638.435816]  ? proc_fail_nth_write+0x9e/0x210
[  638.440307]  ? proc_cwd_link+0x1d0/0x1d0
[  638.444356]  ? kasan_check_read+0x11/0x20
[  638.448520]  ? find_held_lock+0x36/0x1c0
[  638.452577]  _do_fork+0x291/0x12a0
[  638.456106]  ? fork_idle+0x1a0/0x1a0
[  638.459825]  ? __lock_is_held+0xb5/0x140
[  638.463890]  ? __sb_end_write+0xac/0xe0
[  638.467852]  ? vfs_write+0x2a8/0x560
[  638.471569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.477263]  ? ksys_write+0x1ae/0x260
[  638.481055]  ? __ia32_sys_read+0xb0/0xb0
[  638.485116]  ? syscall_slow_exit_work+0x500/0x500
[  638.489946]  __x64_sys_clone+0xbf/0x150
[  638.493905]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  638.498908]  do_syscall_64+0x1b9/0x820
[  638.502780]  ? syscall_return_slowpath+0x5e0/0x5e0
[  638.507692]  ? syscall_return_slowpath+0x31d/0x5e0
[  638.512623]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  638.517975]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  638.522808]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  638.527983] RIP: 0033:0x441519
[  638.531154] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  638.550334] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  638.558045] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  638.565327] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  638.572582] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  638.579840] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  638.587097] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  638.598715] FAULT_INJECTION: forcing a failure.
[  638.598715] name failslab, interval 1, probability 0, space 0, times 0
[  638.610015] CPU: 1 PID: 4564 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  638.617117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  638.626468] Call Trace:
[  638.629058]  dump_stack+0x1c9/0x2b4
[  638.632684]  ? dump_stack_print_info.cold.2+0x52/0x52
[  638.637872]  ? save_stack+0x43/0xd0
[  638.641505]  ? kasan_kmalloc+0xc4/0xe0
[  638.645374]  ? kasan_slab_alloc+0x12/0x20
[  638.649516]  ? kmem_cache_alloc+0x12e/0x760
[  638.653822]  ? copy_creds+0x7b/0x470
[  638.657528]  should_fail.cold.4+0xa/0x1a
[  638.661592]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  638.666685]  ? lock_downgrade+0x8f0/0x8f0
[  638.670823]  ? find_held_lock+0x36/0x1c0
[  638.674878]  ? check_same_owner+0x340/0x340
[  638.679200]  ? rcu_note_context_switch+0x730/0x730
[  638.684121]  ? security_prepare_creds+0x94/0xc0
[  638.688782]  __should_failslab+0x124/0x180
[  638.693010]  should_failslab+0x9/0x14
[  638.696812]  kmem_cache_alloc+0x2af/0x760
[  638.700960]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  638.705969]  __delayacct_tsk_init+0x20/0x80
[  638.710278]  copy_process.part.39+0x2ba8/0x7250
[  638.714934]  ? __lock_acquire+0x7fc/0x5020
[  638.719168]  ? __lock_acquire+0x7fc/0x5020
[  638.723383]  ? __lock_acquire+0x7fc/0x5020
[  638.727605]  ? __cleanup_sighand+0x70/0x70
[  638.731828]  ? debug_check_no_locks_freed+0x310/0x310
[  638.737002]  ? debug_check_no_locks_freed+0x310/0x310
[  638.742182]  ? print_usage_bug+0xc0/0xc0
[  638.746228]  ? print_usage_bug+0xc0/0xc0
[  638.750291]  ? d_splice_alias+0x7c9/0x11f0
[  638.754510]  ? lock_downgrade+0x8f0/0x8f0
[  638.758644]  ? d_instantiate_anon+0x30/0x30
[  638.762968]  ? __lock_acquire+0x7fc/0x5020
[  638.767189]  ? print_usage_bug+0xc0/0xc0
[  638.771246]  ? debug_check_no_locks_freed+0x310/0x310
[  638.776436]  ? debug_check_no_locks_freed+0x310/0x310
[  638.781622]  ? __lock_acquire+0x7fc/0x5020
[  638.785841]  ? print_usage_bug+0xc0/0xc0
[  638.789898]  ? lock_downgrade+0x8f0/0x8f0
[  638.794051]  ? debug_check_no_locks_freed+0x310/0x310
[  638.799227]  ? print_usage_bug+0xc0/0xc0
[  638.803272]  ? graph_lock+0x170/0x170
[  638.807056]  ? do_raw_spin_lock+0xc1/0x200
[  638.811275]  ? graph_lock+0x170/0x170
[  638.815058]  ? graph_lock+0x170/0x170
[  638.818855]  ? find_held_lock+0x36/0x1c0
[  638.822909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.828463]  ? _parse_integer+0x13b/0x190
[  638.832610]  ? graph_lock+0x170/0x170
[  638.836395]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  638.841927]  ? _kstrtoull+0x188/0x250
[  638.845720]  ? _parse_integer+0x190/0x190
[  638.849848]  ? graph_lock+0x170/0x170
[  638.853630]  ? lock_release+0xa30/0xa30
[  638.857608]  ? find_held_lock+0x36/0x1c0
[  638.861659]  ? lock_downgrade+0x8f0/0x8f0
[  638.865796]  ? kasan_check_read+0x11/0x20
[  638.869926]  ? rcu_is_watching+0x8c/0x150
[  638.874067]  ? pid_task+0x115/0x200
[  638.877698]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  638.882095]  ? save_stack+0xa9/0xd0
[  638.885709]  ? graph_lock+0x170/0x170
[  638.889506]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  638.895034]  ? proc_fail_nth_write+0x9e/0x210
[  638.899517]  ? proc_cwd_link+0x1d0/0x1d0
[  638.903573]  ? kasan_check_read+0x11/0x20
[  638.907730]  ? find_held_lock+0x36/0x1c0
[  638.911795]  _do_fork+0x291/0x12a0
[  638.915324]  ? fork_idle+0x1a0/0x1a0
[  638.919030]  ? __lock_is_held+0xb5/0x140
[  638.923088]  ? __sb_end_write+0xac/0xe0
[  638.927048]  ? vfs_write+0x2a8/0x560
[  638.930752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.936285]  ? ksys_write+0x1ae/0x260
[  638.940108]  ? __ia32_sys_read+0xb0/0xb0
[  638.944176]  ? syscall_slow_exit_work+0x500/0x500
[  638.949009]  __x64_sys_clone+0xbf/0x150
[  638.952978]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  638.957992]  do_syscall_64+0x1b9/0x820
[  638.961869]  ? syscall_return_slowpath+0x5e0/0x5e0
[  638.966780]  ? syscall_return_slowpath+0x31d/0x5e0
[  638.971695]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  638.977054]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  638.981895]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  638.987069] RIP: 0033:0x441519
[  638.990237] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  639.009434] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  639.017154] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  639.024412] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  639.031679] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  639.038934] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  639.046189] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  639.057809] FAULT_INJECTION: forcing a failure.
[  639.057809] name failslab, interval 1, probability 0, space 0, times 0
[  639.069132] CPU: 1 PID: 4566 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  639.076221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  639.085557] Call Trace:
[  639.088134]  dump_stack+0x1c9/0x2b4
[  639.091761]  ? dump_stack_print_info.cold.2+0x52/0x52
[  639.096940]  ? save_stack+0x43/0xd0
[  639.100549]  ? kasan_kmalloc+0xc4/0xe0
[  639.104440]  ? kasan_slab_alloc+0x12/0x20
[  639.108578]  ? kmem_cache_alloc+0x12e/0x760
[  639.112882]  ? copy_creds+0x7b/0x470
[  639.116594]  should_fail.cold.4+0xa/0x1a
[  639.120640]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  639.125736]  ? find_held_lock+0x36/0x1c0
[  639.129809]  ? find_held_lock+0x36/0x1c0
[  639.133864]  ? check_same_owner+0x340/0x340
[  639.138172]  ? rcu_is_watching+0x8c/0x150
[  639.142306]  ? rcu_note_context_switch+0x730/0x730
[  639.147224]  ? security_prepare_creds+0x94/0xc0
[  639.151883]  __should_failslab+0x124/0x180
[  639.156106]  should_failslab+0x9/0x14
[  639.159893]  kmem_cache_alloc+0x2af/0x760
[  639.164054]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  639.169078]  __delayacct_tsk_init+0x20/0x80
[  639.173403]  copy_process.part.39+0x2ba8/0x7250
[  639.178074]  ? __lock_acquire+0x7fc/0x5020
[  639.182300]  ? __lock_acquire+0x7fc/0x5020
[  639.186516]  ? __lock_acquire+0x7fc/0x5020
[  639.190760]  ? __cleanup_sighand+0x70/0x70
[  639.194990]  ? debug_check_no_locks_freed+0x310/0x310
[  639.200955]  ? debug_check_no_locks_freed+0x310/0x310
[  639.206148]  ? print_usage_bug+0xc0/0xc0
[  639.210220]  ? print_usage_bug+0xc0/0xc0
[  639.214275]  ? d_splice_alias+0x7c9/0x11f0
[  639.218491]  ? lock_downgrade+0x8f0/0x8f0
[  639.222620]  ? d_instantiate_anon+0x30/0x30
[  639.226926]  ? __lock_acquire+0x7fc/0x5020
[  639.231148]  ? print_usage_bug+0xc0/0xc0
[  639.235208]  ? debug_check_no_locks_freed+0x310/0x310
[  639.240390]  ? debug_check_no_locks_freed+0x310/0x310
[  639.245566]  ? __lock_acquire+0x7fc/0x5020
[  639.249784]  ? print_usage_bug+0xc0/0xc0
[  639.253842]  ? lock_downgrade+0x8f0/0x8f0
[  639.257981]  ? debug_check_no_locks_freed+0x310/0x310
[  639.263158]  ? print_usage_bug+0xc0/0xc0
[  639.267216]  ? graph_lock+0x170/0x170
[  639.271000]  ? do_raw_spin_lock+0xc1/0x200
[  639.275237]  ? graph_lock+0x170/0x170
[  639.279033]  ? graph_lock+0x170/0x170
[  639.282827]  ? find_held_lock+0x36/0x1c0
[  639.286875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.292399]  ? _parse_integer+0x13b/0x190
[  639.296532]  ? graph_lock+0x170/0x170
[  639.300318]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  639.305838]  ? _kstrtoull+0x188/0x250
[  639.309621]  ? _parse_integer+0x190/0x190
[  639.313760]  ? graph_lock+0x170/0x170
[  639.317549]  ? lock_release+0xa30/0xa30
[  639.321505]  ? find_held_lock+0x36/0x1c0
[  639.325555]  ? lock_downgrade+0x8f0/0x8f0
[  639.329691]  ? kasan_check_read+0x11/0x20
[  639.333820]  ? rcu_is_watching+0x8c/0x150
[  639.337952]  ? pid_task+0x115/0x200
[  639.341560]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  639.345970]  ? save_stack+0xa9/0xd0
[  639.349582]  ? graph_lock+0x170/0x170
[  639.353382]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  639.358910]  ? proc_fail_nth_write+0x9e/0x210
[  639.363390]  ? proc_cwd_link+0x1d0/0x1d0
[  639.367434]  ? kasan_check_read+0x11/0x20
[  639.371569]  ? find_held_lock+0x36/0x1c0
[  639.375612]  _do_fork+0x291/0x12a0
[  639.379151]  ? fork_idle+0x1a0/0x1a0
[  639.382857]  ? __lock_is_held+0xb5/0x140
[  639.386916]  ? __sb_end_write+0xac/0xe0
[  639.390872]  ? vfs_write+0x2a8/0x560
[  639.394581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.400098]  ? ksys_write+0x1ae/0x260
[  639.403880]  ? __ia32_sys_read+0xb0/0xb0
[  639.407936]  ? syscall_slow_exit_work+0x500/0x500
[  639.412771]  __x64_sys_clone+0xbf/0x150
[  639.416731]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  639.421731]  do_syscall_64+0x1b9/0x820
[  639.425602]  ? syscall_return_slowpath+0x5e0/0x5e0
[  639.430522]  ? syscall_return_slowpath+0x31d/0x5e0
[  639.435448]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  639.440800]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  639.445631]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  639.450804] RIP: 0033:0x441519
[  639.453985] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  639.473208] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  639.480910] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  639.488171] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  639.495436] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  639.502695] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  639.509946] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  639.521220] FAULT_INJECTION: forcing a failure.
[  639.521220] name failslab, interval 1, probability 0, space 0, times 0
[  639.532570] CPU: 1 PID: 4568 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  639.539673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  639.549011] Call Trace:
[  639.551596]  dump_stack+0x1c9/0x2b4
[  639.555204]  ? dump_stack_print_info.cold.2+0x52/0x52
[  639.560376]  ? save_stack+0x43/0xd0
[  639.563994]  ? kasan_kmalloc+0xc4/0xe0
[  639.567869]  ? kasan_slab_alloc+0x12/0x20
[  639.572010]  ? kmem_cache_alloc+0x12e/0x760
[  639.576334]  ? copy_creds+0x7b/0x470
[  639.580054]  should_fail.cold.4+0xa/0x1a
[  639.584120]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  639.589205]  ? find_held_lock+0x36/0x1c0
[  639.593265]  ? find_held_lock+0x36/0x1c0
[  639.597324]  ? check_same_owner+0x340/0x340
[  639.601629]  ? rcu_is_watching+0x8c/0x150
[  639.605761]  ? rcu_note_context_switch+0x730/0x730
[  639.610678]  ? security_prepare_creds+0x94/0xc0
[  639.615333]  __should_failslab+0x124/0x180
[  639.619551]  should_failslab+0x9/0x14
[  639.623330]  kmem_cache_alloc+0x2af/0x760
[  639.627464]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  639.632470]  __delayacct_tsk_init+0x20/0x80
[  639.636785]  copy_process.part.39+0x2ba8/0x7250
[  639.641443]  ? __lock_acquire+0x7fc/0x5020
[  639.645663]  ? __lock_acquire+0x7fc/0x5020
[  639.649882]  ? __lock_acquire+0x7fc/0x5020
[  639.654105]  ? __cleanup_sighand+0x70/0x70
[  639.658335]  ? debug_check_no_locks_freed+0x310/0x310
[  639.663508]  ? debug_check_no_locks_freed+0x310/0x310
[  639.668681]  ? print_usage_bug+0xc0/0xc0
[  639.672729]  ? print_usage_bug+0xc0/0xc0
[  639.676783]  ? d_splice_alias+0x7c9/0x11f0
[  639.681000]  ? lock_downgrade+0x8f0/0x8f0
[  639.685139]  ? d_instantiate_anon+0x30/0x30
[  639.689443]  ? __lock_acquire+0x7fc/0x5020
[  639.693665]  ? print_usage_bug+0xc0/0xc0
[  639.697712]  ? debug_check_no_locks_freed+0x310/0x310
[  639.702887]  ? debug_check_no_locks_freed+0x310/0x310
[  639.708071]  ? __lock_acquire+0x7fc/0x5020
[  639.712303]  ? print_usage_bug+0xc0/0xc0
[  639.716364]  ? lock_downgrade+0x8f0/0x8f0
[  639.720502]  ? debug_check_no_locks_freed+0x310/0x310
[  639.725690]  ? print_usage_bug+0xc0/0xc0
[  639.729734]  ? graph_lock+0x170/0x170
[  639.733517]  ? do_raw_spin_lock+0xc1/0x200
[  639.737736]  ? graph_lock+0x170/0x170
[  639.741533]  ? graph_lock+0x170/0x170
[  639.745335]  ? find_held_lock+0x36/0x1c0
[  639.749381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.754902]  ? _parse_integer+0x13b/0x190
[  639.759042]  ? graph_lock+0x170/0x170
[  639.762832]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  639.768366]  ? _kstrtoull+0x188/0x250
[  639.772163]  ? _parse_integer+0x190/0x190
[  639.776296]  ? graph_lock+0x170/0x170
[  639.780085]  ? lock_release+0xa30/0xa30
[  639.784054]  ? find_held_lock+0x36/0x1c0
[  639.788107]  ? lock_downgrade+0x8f0/0x8f0
[  639.792243]  ? kasan_check_read+0x11/0x20
[  639.796390]  ? rcu_is_watching+0x8c/0x150
[  639.800537]  ? pid_task+0x115/0x200
[  639.804145]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  639.808539]  ? save_stack+0xa9/0xd0
[  639.812151]  ? graph_lock+0x170/0x170
[  639.815938]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  639.821461]  ? proc_fail_nth_write+0x9e/0x210
[  639.825950]  ? proc_cwd_link+0x1d0/0x1d0
[  639.830010]  ? kasan_check_read+0x11/0x20
[  639.834152]  ? find_held_lock+0x36/0x1c0
[  639.838198]  _do_fork+0x291/0x12a0
[  639.841727]  ? fork_idle+0x1a0/0x1a0
[  639.845423]  ? __lock_is_held+0xb5/0x140
[  639.849473]  ? __sb_end_write+0xac/0xe0
[  639.853426]  ? vfs_write+0x2a8/0x560
[  639.857124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.862643]  ? ksys_write+0x1ae/0x260
[  639.866428]  ? __ia32_sys_read+0xb0/0xb0
[  639.870475]  ? syscall_slow_exit_work+0x500/0x500
[  639.875322]  __x64_sys_clone+0xbf/0x150
[  639.879289]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  639.884293]  do_syscall_64+0x1b9/0x820
[  639.888181]  ? syscall_return_slowpath+0x5e0/0x5e0
[  639.893097]  ? syscall_return_slowpath+0x31d/0x5e0
[  639.898023]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  639.903379]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  639.908211]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  639.913410] RIP: 0033:0x441519
[  639.916588] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  639.935794] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  639.943503] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  639.950757] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  639.958013] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  639.965288] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  639.972540] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  639.983573] FAULT_INJECTION: forcing a failure.
[  639.983573] name failslab, interval 1, probability 0, space 0, times 0
[  639.994903] CPU: 1 PID: 4570 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  640.002006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  640.011356] Call Trace:
[  640.013952]  dump_stack+0x1c9/0x2b4
[  640.017577]  ? dump_stack_print_info.cold.2+0x52/0x52
[  640.022764]  ? save_stack+0x43/0xd0
[  640.026380]  ? kasan_kmalloc+0xc4/0xe0
[  640.030263]  ? kasan_slab_alloc+0x12/0x20
[  640.034398]  ? kmem_cache_alloc+0x12e/0x760
[  640.038704]  ? copy_creds+0x7b/0x470
[  640.042418]  should_fail.cold.4+0xa/0x1a
[  640.046465]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  640.051559]  ? find_held_lock+0x36/0x1c0
[  640.055619]  ? find_held_lock+0x36/0x1c0
[  640.059686]  ? check_same_owner+0x340/0x340
[  640.063992]  ? rcu_is_watching+0x8c/0x150
[  640.068128]  ? rcu_note_context_switch+0x730/0x730
[  640.073049]  ? security_prepare_creds+0x94/0xc0
[  640.077715]  __should_failslab+0x124/0x180
[  640.081939]  should_failslab+0x9/0x14
[  640.085728]  kmem_cache_alloc+0x2af/0x760
[  640.089868]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  640.094890]  __delayacct_tsk_init+0x20/0x80
[  640.099201]  copy_process.part.39+0x2ba8/0x7250
[  640.103870]  ? __lock_acquire+0x7fc/0x5020
[  640.108091]  ? __lock_acquire+0x7fc/0x5020
[  640.112310]  ? __lock_acquire+0x7fc/0x5020
[  640.116549]  ? __cleanup_sighand+0x70/0x70
[  640.120780]  ? debug_check_no_locks_freed+0x310/0x310
[  640.125954]  ? debug_check_no_locks_freed+0x310/0x310
[  640.131141]  ? print_usage_bug+0xc0/0xc0
[  640.135190]  ? print_usage_bug+0xc0/0xc0
[  640.139238]  ? d_splice_alias+0x7c9/0x11f0
[  640.143455]  ? lock_downgrade+0x8f0/0x8f0
[  640.147590]  ? d_instantiate_anon+0x30/0x30
[  640.151910]  ? __lock_acquire+0x7fc/0x5020
[  640.156132]  ? print_usage_bug+0xc0/0xc0
[  640.160180]  ? debug_check_no_locks_freed+0x310/0x310
[  640.165369]  ? debug_check_no_locks_freed+0x310/0x310
[  640.170551]  ? __lock_acquire+0x7fc/0x5020
[  640.174773]  ? print_usage_bug+0xc0/0xc0
[  640.178819]  ? lock_downgrade+0x8f0/0x8f0
[  640.182957]  ? debug_check_no_locks_freed+0x310/0x310
[  640.188133]  ? print_usage_bug+0xc0/0xc0
[  640.192187]  ? graph_lock+0x170/0x170
[  640.195990]  ? do_raw_spin_lock+0xc1/0x200
[  640.200219]  ? graph_lock+0x170/0x170
[  640.204005]  ? graph_lock+0x170/0x170
[  640.207814]  ? find_held_lock+0x36/0x1c0
[  640.211863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.217416]  ? _parse_integer+0x13b/0x190
[  640.221557]  ? graph_lock+0x170/0x170
[  640.225345]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  640.230886]  ? _kstrtoull+0x188/0x250
[  640.234672]  ? _parse_integer+0x190/0x190
[  640.238805]  ? graph_lock+0x170/0x170
[  640.242591]  ? lock_release+0xa30/0xa30
[  640.246564]  ? find_held_lock+0x36/0x1c0
[  640.250635]  ? lock_downgrade+0x8f0/0x8f0
[  640.254796]  ? kasan_check_read+0x11/0x20
[  640.258944]  ? rcu_is_watching+0x8c/0x150
[  640.263077]  ? pid_task+0x115/0x200
[  640.266686]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  640.271093]  ? save_stack+0xa9/0xd0
[  640.274717]  ? graph_lock+0x170/0x170
[  640.278504]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  640.284031]  ? proc_fail_nth_write+0x9e/0x210
[  640.288528]  ? proc_cwd_link+0x1d0/0x1d0
[  640.292574]  ? kasan_check_read+0x11/0x20
[  640.296709]  ? find_held_lock+0x36/0x1c0
[  640.300772]  _do_fork+0x291/0x12a0
[  640.304308]  ? fork_idle+0x1a0/0x1a0
[  640.308027]  ? __lock_is_held+0xb5/0x140
[  640.312096]  ? __sb_end_write+0xac/0xe0
[  640.316061]  ? vfs_write+0x2a8/0x560
[  640.319770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.325288]  ? ksys_write+0x1ae/0x260
[  640.329084]  ? __ia32_sys_read+0xb0/0xb0
[  640.333134]  ? syscall_slow_exit_work+0x500/0x500
[  640.337961]  __x64_sys_clone+0xbf/0x150
[  640.341922]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  640.346923]  do_syscall_64+0x1b9/0x820
[  640.350811]  ? syscall_return_slowpath+0x5e0/0x5e0
[  640.355725]  ? syscall_return_slowpath+0x31d/0x5e0
[  640.360646]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  640.366007]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  640.370856]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  640.376055] RIP: 0033:0x441519
[  640.379228] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  640.398403] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  640.406100] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  640.413356] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  640.420608] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  640.427863] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  640.435128] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  640.446831] FAULT_INJECTION: forcing a failure.
[  640.446831] name failslab, interval 1, probability 0, space 0, times 0
[  640.458117] CPU: 1 PID: 4572 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  640.465213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  640.474562] Call Trace:
[  640.477147]  dump_stack+0x1c9/0x2b4
[  640.480768]  ? dump_stack_print_info.cold.2+0x52/0x52
[  640.485946]  ? save_stack+0x43/0xd0
[  640.489554]  ? kasan_kmalloc+0xc4/0xe0
[  640.493425]  ? kasan_slab_alloc+0x12/0x20
[  640.497572]  ? kmem_cache_alloc+0x12e/0x760
[  640.501880]  ? copy_creds+0x7b/0x470
[  640.505580]  should_fail.cold.4+0xa/0x1a
[  640.509641]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  640.514730]  ? find_held_lock+0x36/0x1c0
[  640.518778]  ? find_held_lock+0x36/0x1c0
[  640.522845]  ? check_same_owner+0x340/0x340
[  640.527161]  ? rcu_is_watching+0x8c/0x150
[  640.531302]  ? rcu_note_context_switch+0x730/0x730
[  640.536216]  ? security_prepare_creds+0x94/0xc0
[  640.540872]  __should_failslab+0x124/0x180
[  640.545106]  should_failslab+0x9/0x14
[  640.548901]  kmem_cache_alloc+0x2af/0x760
[  640.553047]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  640.558066]  __delayacct_tsk_init+0x20/0x80
[  640.562389]  copy_process.part.39+0x2ba8/0x7250
[  640.567050]  ? __lock_acquire+0x7fc/0x5020
[  640.571278]  ? __lock_acquire+0x7fc/0x5020
[  640.575515]  ? __lock_acquire+0x7fc/0x5020
[  640.579743]  ? __cleanup_sighand+0x70/0x70
[  640.583974]  ? debug_check_no_locks_freed+0x310/0x310
[  640.589147]  ? debug_check_no_locks_freed+0x310/0x310
[  640.594324]  ? print_usage_bug+0xc0/0xc0
[  640.598381]  ? print_usage_bug+0xc0/0xc0
[  640.602428]  ? d_splice_alias+0x7c9/0x11f0
[  640.606658]  ? lock_downgrade+0x8f0/0x8f0
[  640.610791]  ? d_instantiate_anon+0x30/0x30
[  640.615102]  ? __lock_acquire+0x7fc/0x5020
[  640.619326]  ? print_usage_bug+0xc0/0xc0
[  640.623376]  ? debug_check_no_locks_freed+0x310/0x310
[  640.628562]  ? debug_check_no_locks_freed+0x310/0x310
[  640.633747]  ? __lock_acquire+0x7fc/0x5020
[  640.637978]  ? print_usage_bug+0xc0/0xc0
[  640.642032]  ? lock_downgrade+0x8f0/0x8f0
[  640.646179]  ? debug_check_no_locks_freed+0x310/0x310
[  640.651360]  ? print_usage_bug+0xc0/0xc0
[  640.655407]  ? graph_lock+0x170/0x170
[  640.659205]  ? do_raw_spin_lock+0xc1/0x200
[  640.663425]  ? graph_lock+0x170/0x170
[  640.667215]  ? graph_lock+0x170/0x170
[  640.671006]  ? find_held_lock+0x36/0x1c0
[  640.675061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.680602]  ? _parse_integer+0x13b/0x190
[  640.684749]  ? graph_lock+0x170/0x170
[  640.688535]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  640.694065]  ? _kstrtoull+0x188/0x250
[  640.697861]  ? _parse_integer+0x190/0x190
[  640.702000]  ? graph_lock+0x170/0x170
[  640.705801]  ? lock_release+0xa30/0xa30
[  640.709765]  ? find_held_lock+0x36/0x1c0
[  640.713817]  ? lock_downgrade+0x8f0/0x8f0
[  640.717960]  ? kasan_check_read+0x11/0x20
[  640.722090]  ? rcu_is_watching+0x8c/0x150
[  640.726223]  ? pid_task+0x115/0x200
[  640.729833]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  640.734243]  ? save_stack+0xa9/0xd0
[  640.737857]  ? graph_lock+0x170/0x170
[  640.741655]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  640.747192]  ? proc_fail_nth_write+0x9e/0x210
[  640.751673]  ? proc_cwd_link+0x1d0/0x1d0
[  640.755732]  ? kasan_check_read+0x11/0x20
[  640.759869]  ? find_held_lock+0x36/0x1c0
[  640.763918]  _do_fork+0x291/0x12a0
[  640.767448]  ? fork_idle+0x1a0/0x1a0
[  640.771150]  ? __lock_is_held+0xb5/0x140
[  640.775200]  ? __sb_end_write+0xac/0xe0
[  640.779158]  ? vfs_write+0x2a8/0x560
[  640.782860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.788377]  ? ksys_write+0x1ae/0x260
[  640.792161]  ? __ia32_sys_read+0xb0/0xb0
[  640.796224]  ? syscall_slow_exit_work+0x500/0x500
[  640.801061]  __x64_sys_clone+0xbf/0x150
[  640.805029]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  640.810061]  do_syscall_64+0x1b9/0x820
[  640.813936]  ? syscall_return_slowpath+0x5e0/0x5e0
[  640.818850]  ? syscall_return_slowpath+0x31d/0x5e0
[  640.823783]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  640.829134]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  640.833966]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  640.839137] RIP: 0033:0x441519
[  640.842325] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  640.861500] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  640.869195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  640.876446] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  640.883698] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  640.890949] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  640.898201] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  640.909554] FAULT_INJECTION: forcing a failure.
[  640.909554] name failslab, interval 1, probability 0, space 0, times 0
[  640.920864] CPU: 1 PID: 4574 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  640.927952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  640.937305] Call Trace:
[  640.939898]  dump_stack+0x1c9/0x2b4
[  640.943510]  ? dump_stack_print_info.cold.2+0x52/0x52
[  640.948687]  ? save_stack+0x43/0xd0
[  640.952322]  ? kasan_kmalloc+0xc4/0xe0
[  640.956195]  ? kasan_slab_alloc+0x12/0x20
[  640.960327]  ? kmem_cache_alloc+0x12e/0x760
[  640.964641]  ? copy_creds+0x7b/0x470
[  640.968345]  should_fail.cold.4+0xa/0x1a
[  640.972394]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  640.977481]  ? find_held_lock+0x36/0x1c0
[  640.981531]  ? find_held_lock+0x36/0x1c0
[  640.985585]  ? check_same_owner+0x340/0x340
[  640.989913]  ? rcu_is_watching+0x8c/0x150
[  640.994053]  ? rcu_note_context_switch+0x730/0x730
[  640.998971]  ? security_prepare_creds+0x94/0xc0
[  641.003625]  __should_failslab+0x124/0x180
[  641.007846]  should_failslab+0x9/0x14
[  641.011629]  kmem_cache_alloc+0x2af/0x760
[  641.015762]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  641.020766]  __delayacct_tsk_init+0x20/0x80
[  641.025071]  copy_process.part.39+0x2ba8/0x7250
[  641.029723]  ? __lock_acquire+0x7fc/0x5020
[  641.033954]  ? __lock_acquire+0x7fc/0x5020
[  641.038182]  ? __lock_acquire+0x7fc/0x5020
[  641.042406]  ? __cleanup_sighand+0x70/0x70
[  641.046628]  ? debug_check_no_locks_freed+0x310/0x310
[  641.051802]  ? debug_check_no_locks_freed+0x310/0x310
[  641.056977]  ? print_usage_bug+0xc0/0xc0
[  641.061036]  ? print_usage_bug+0xc0/0xc0
[  641.065085]  ? d_splice_alias+0x7c9/0x11f0
[  641.069308]  ? lock_downgrade+0x8f0/0x8f0
[  641.073456]  ? d_instantiate_anon+0x30/0x30
[  641.077773]  ? __lock_acquire+0x7fc/0x5020
[  641.081995]  ? print_usage_bug+0xc0/0xc0
[  641.086050]  ? debug_check_no_locks_freed+0x310/0x310
[  641.091227]  ? debug_check_no_locks_freed+0x310/0x310
[  641.096400]  ? __lock_acquire+0x7fc/0x5020
[  641.100616]  ? print_usage_bug+0xc0/0xc0
[  641.104671]  ? lock_downgrade+0x8f0/0x8f0
[  641.108820]  ? debug_check_no_locks_freed+0x310/0x310
[  641.114012]  ? print_usage_bug+0xc0/0xc0
[  641.118071]  ? graph_lock+0x170/0x170
[  641.121868]  ? do_raw_spin_lock+0xc1/0x200
[  641.126100]  ? graph_lock+0x170/0x170
[  641.129897]  ? graph_lock+0x170/0x170
[  641.133685]  ? find_held_lock+0x36/0x1c0
[  641.137734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.143258]  ? _parse_integer+0x13b/0x190
[  641.147388]  ? graph_lock+0x170/0x170
[  641.151171]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  641.156689]  ? _kstrtoull+0x188/0x250
[  641.160472]  ? _parse_integer+0x190/0x190
[  641.164604]  ? graph_lock+0x170/0x170
[  641.168397]  ? lock_release+0xa30/0xa30
[  641.172355]  ? find_held_lock+0x36/0x1c0
[  641.176401]  ? lock_downgrade+0x8f0/0x8f0
[  641.180533]  ? kasan_check_read+0x11/0x20
[  641.184674]  ? rcu_is_watching+0x8c/0x150
[  641.188816]  ? pid_task+0x115/0x200
[  641.192425]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  641.196819]  ? save_stack+0xa9/0xd0
[  641.200430]  ? graph_lock+0x170/0x170
[  641.205071]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  641.210609]  ? proc_fail_nth_write+0x9e/0x210
[  641.215094]  ? proc_cwd_link+0x1d0/0x1d0
[  641.219157]  ? kasan_check_read+0x11/0x20
[  641.223292]  ? find_held_lock+0x36/0x1c0
[  641.227339]  _do_fork+0x291/0x12a0
[  641.230864]  ? fork_idle+0x1a0/0x1a0
[  641.234563]  ? __lock_is_held+0xb5/0x140
[  641.238624]  ? __sb_end_write+0xac/0xe0
[  641.242583]  ? vfs_write+0x2a8/0x560
[  641.246283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.251808]  ? ksys_write+0x1ae/0x260
[  641.255596]  ? __ia32_sys_read+0xb0/0xb0
[  641.259648]  ? syscall_slow_exit_work+0x500/0x500
[  641.264488]  __x64_sys_clone+0xbf/0x150
[  641.268449]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  641.273450]  do_syscall_64+0x1b9/0x820
[  641.277319]  ? syscall_return_slowpath+0x5e0/0x5e0
[  641.282231]  ? syscall_return_slowpath+0x31d/0x5e0
[  641.287155]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  641.292513]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  641.297350]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  641.302522] RIP: 0033:0x441519
[  641.305700] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  641.324875] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  641.332573] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  641.339826] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  641.347079] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  641.354332] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  641.361596] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  641.373092] FAULT_INJECTION: forcing a failure.
[  641.373092] name failslab, interval 1, probability 0, space 0, times 0
[  641.384349] CPU: 1 PID: 4576 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  641.391455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  641.400791] Call Trace:
[  641.403370]  dump_stack+0x1c9/0x2b4
[  641.406980]  ? dump_stack_print_info.cold.2+0x52/0x52
[  641.412169]  ? save_stack+0x43/0xd0
[  641.415778]  ? kasan_kmalloc+0xc4/0xe0
[  641.419658]  ? kasan_slab_alloc+0x12/0x20
[  641.423785]  ? kmem_cache_alloc+0x12e/0x760
[  641.428092]  ? copy_creds+0x7b/0x470
[  641.431795]  should_fail.cold.4+0xa/0x1a
[  641.435842]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  641.440953]  ? find_held_lock+0x36/0x1c0
[  641.445007]  ? find_held_lock+0x36/0x1c0
[  641.449068]  ? check_same_owner+0x340/0x340
[  641.453379]  ? rcu_is_watching+0x8c/0x150
[  641.457512]  ? rcu_note_context_switch+0x730/0x730
[  641.462428]  ? security_prepare_creds+0x94/0xc0
[  641.467083]  __should_failslab+0x124/0x180
[  641.471303]  should_failslab+0x9/0x14
[  641.475094]  kmem_cache_alloc+0x2af/0x760
[  641.479237]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  641.484240]  __delayacct_tsk_init+0x20/0x80
[  641.488549]  copy_process.part.39+0x2ba8/0x7250
[  641.493205]  ? __lock_acquire+0x7fc/0x5020
[  641.497425]  ? __lock_acquire+0x7fc/0x5020
[  641.501643]  ? __lock_acquire+0x7fc/0x5020
[  641.505869]  ? __cleanup_sighand+0x70/0x70
[  641.510087]  ? debug_check_no_locks_freed+0x310/0x310
[  641.515281]  ? debug_check_no_locks_freed+0x310/0x310
[  641.520456]  ? print_usage_bug+0xc0/0xc0
[  641.524504]  ? print_usage_bug+0xc0/0xc0
[  641.528550]  ? d_splice_alias+0x7c9/0x11f0
[  641.532774]  ? lock_downgrade+0x8f0/0x8f0
[  641.536910]  ? d_instantiate_anon+0x30/0x30
[  641.541215]  ? __lock_acquire+0x7fc/0x5020
[  641.545438]  ? print_usage_bug+0xc0/0xc0
[  641.549485]  ? debug_check_no_locks_freed+0x310/0x310
[  641.554663]  ? debug_check_no_locks_freed+0x310/0x310
[  641.559838]  ? __lock_acquire+0x7fc/0x5020
[  641.564064]  ? print_usage_bug+0xc0/0xc0
[  641.568127]  ? lock_downgrade+0x8f0/0x8f0
[  641.572272]  ? debug_check_no_locks_freed+0x310/0x310
[  641.577459]  ? print_usage_bug+0xc0/0xc0
[  641.581507]  ? graph_lock+0x170/0x170
[  641.585290]  ? do_raw_spin_lock+0xc1/0x200
[  641.589535]  ? graph_lock+0x170/0x170
[  641.593333]  ? graph_lock+0x170/0x170
[  641.597121]  ? find_held_lock+0x36/0x1c0
[  641.601174]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.606697]  ? _parse_integer+0x13b/0x190
[  641.610846]  ? graph_lock+0x170/0x170
[  641.614630]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  641.620159]  ? _kstrtoull+0x188/0x250
[  641.623941]  ? _parse_integer+0x190/0x190
[  641.628082]  ? graph_lock+0x170/0x170
[  641.631873]  ? lock_release+0xa30/0xa30
[  641.635831]  ? find_held_lock+0x36/0x1c0
[  641.639880]  ? lock_downgrade+0x8f0/0x8f0
[  641.644022]  ? kasan_check_read+0x11/0x20
[  641.648161]  ? rcu_is_watching+0x8c/0x150
[  641.652291]  ? pid_task+0x115/0x200
[  641.655907]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  641.660304]  ? save_stack+0xa9/0xd0
[  641.663915]  ? graph_lock+0x170/0x170
[  641.667702]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  641.673224]  ? proc_fail_nth_write+0x9e/0x210
[  641.677710]  ? proc_cwd_link+0x1d0/0x1d0
[  641.681774]  ? kasan_check_read+0x11/0x20
[  641.685908]  ? find_held_lock+0x36/0x1c0
[  641.689955]  _do_fork+0x291/0x12a0
[  641.693502]  ? fork_idle+0x1a0/0x1a0
[  641.697207]  ? __lock_is_held+0xb5/0x140
[  641.701261]  ? __sb_end_write+0xac/0xe0
[  641.705214]  ? vfs_write+0x2a8/0x560
[  641.708916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.714432]  ? ksys_write+0x1ae/0x260
[  641.718215]  ? __ia32_sys_read+0xb0/0xb0
[  641.722279]  ? syscall_slow_exit_work+0x500/0x500
[  641.727119]  __x64_sys_clone+0xbf/0x150
[  641.731077]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  641.736083]  do_syscall_64+0x1b9/0x820
[  641.739957]  ? syscall_return_slowpath+0x5e0/0x5e0
[  641.744877]  ? syscall_return_slowpath+0x31d/0x5e0
[  641.749797]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  641.755147]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  641.759976]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  641.765151] RIP: 0033:0x441519
[  641.768319] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  641.787498] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  641.795203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  641.802453] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  641.809704] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  641.816956] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  641.824219] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  641.835975] FAULT_INJECTION: forcing a failure.
[  641.835975] name failslab, interval 1, probability 0, space 0, times 0
[  641.847302] CPU: 1 PID: 4578 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  641.854397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  641.863730] Call Trace:
[  641.866306]  dump_stack+0x1c9/0x2b4
[  641.869919]  ? dump_stack_print_info.cold.2+0x52/0x52
[  641.875091]  ? save_stack+0x43/0xd0
[  641.878702]  ? kasan_kmalloc+0xc4/0xe0
[  641.882584]  ? kasan_slab_alloc+0x12/0x20
[  641.886723]  ? kmem_cache_alloc+0x12e/0x760
[  641.891034]  ? copy_creds+0x7b/0x470
[  641.894738]  should_fail.cold.4+0xa/0x1a
[  641.898784]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  641.903870]  ? find_held_lock+0x36/0x1c0
[  641.907920]  ? find_held_lock+0x36/0x1c0
[  641.911984]  ? check_same_owner+0x340/0x340
[  641.916292]  ? rcu_is_watching+0x8c/0x150
[  641.920434]  ? rcu_note_context_switch+0x730/0x730
[  641.925363]  ? security_prepare_creds+0x94/0xc0
[  641.930028]  __should_failslab+0x124/0x180
[  641.934256]  should_failslab+0x9/0x14
[  641.938047]  kmem_cache_alloc+0x2af/0x760
[  641.942198]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  641.947204]  __delayacct_tsk_init+0x20/0x80
[  641.951524]  copy_process.part.39+0x2ba8/0x7250
[  641.956178]  ? __lock_acquire+0x7fc/0x5020
[  641.960407]  ? __lock_acquire+0x7fc/0x5020
[  641.964624]  ? __lock_acquire+0x7fc/0x5020
[  641.968847]  ? __cleanup_sighand+0x70/0x70
[  641.973076]  ? debug_check_no_locks_freed+0x310/0x310
[  641.978264]  ? debug_check_no_locks_freed+0x310/0x310
[  641.983438]  ? print_usage_bug+0xc0/0xc0
[  641.987484]  ? print_usage_bug+0xc0/0xc0
[  641.991541]  ? d_splice_alias+0x7c9/0x11f0
[  641.995760]  ? lock_downgrade+0x8f0/0x8f0
[  641.999905]  ? d_instantiate_anon+0x30/0x30
[  642.004231]  ? __lock_acquire+0x7fc/0x5020
[  642.008463]  ? print_usage_bug+0xc0/0xc0
[  642.012533]  ? debug_check_no_locks_freed+0x310/0x310
[  642.017722]  ? debug_check_no_locks_freed+0x310/0x310
[  642.022897]  ? __lock_acquire+0x7fc/0x5020
[  642.027129]  ? print_usage_bug+0xc0/0xc0
[  642.031173]  ? lock_downgrade+0x8f0/0x8f0
[  642.035308]  ? debug_check_no_locks_freed+0x310/0x310
[  642.040482]  ? print_usage_bug+0xc0/0xc0
[  642.044526]  ? graph_lock+0x170/0x170
[  642.048308]  ? do_raw_spin_lock+0xc1/0x200
[  642.052535]  ? graph_lock+0x170/0x170
[  642.056319]  ? graph_lock+0x170/0x170
[  642.060107]  ? find_held_lock+0x36/0x1c0
[  642.064150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.069847]  ? _parse_integer+0x13b/0x190
[  642.073986]  ? graph_lock+0x170/0x170
[  642.077784]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  642.083303]  ? _kstrtoull+0x188/0x250
[  642.087103]  ? _parse_integer+0x190/0x190
[  642.091254]  ? graph_lock+0x170/0x170
[  642.095044]  ? lock_release+0xa30/0xa30
[  642.099038]  ? find_held_lock+0x36/0x1c0
[  642.103094]  ? lock_downgrade+0x8f0/0x8f0
[  642.107244]  ? kasan_check_read+0x11/0x20
[  642.111374]  ? rcu_is_watching+0x8c/0x150
[  642.115505]  ? pid_task+0x115/0x200
[  642.119138]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  642.123534]  ? save_stack+0xa9/0xd0
[  642.127146]  ? graph_lock+0x170/0x170
[  642.130944]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  642.136488]  ? proc_fail_nth_write+0x9e/0x210
[  642.140978]  ? proc_cwd_link+0x1d0/0x1d0
[  642.145032]  ? kasan_check_read+0x11/0x20
[  642.149170]  ? find_held_lock+0x36/0x1c0
[  642.153222]  _do_fork+0x291/0x12a0
[  642.156750]  ? fork_idle+0x1a0/0x1a0
[  642.160450]  ? __lock_is_held+0xb5/0x140
[  642.164500]  ? __sb_end_write+0xac/0xe0
[  642.168464]  ? vfs_write+0x2a8/0x560
[  642.172164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.177682]  ? ksys_write+0x1ae/0x260
[  642.181468]  ? __ia32_sys_read+0xb0/0xb0
[  642.185525]  ? syscall_slow_exit_work+0x500/0x500
[  642.190350]  __x64_sys_clone+0xbf/0x150
[  642.194319]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  642.199320]  do_syscall_64+0x1b9/0x820
[  642.203192]  ? syscall_return_slowpath+0x5e0/0x5e0
[  642.208111]  ? syscall_return_slowpath+0x31d/0x5e0
[  642.213049]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  642.218401]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  642.223238]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  642.228421] RIP: 0033:0x441519
[  642.231593] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  642.250793] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  642.258498] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  642.265760] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  642.273016] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  642.280277] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  642.287538] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  642.299718] FAULT_INJECTION: forcing a failure.
[  642.299718] name failslab, interval 1, probability 0, space 0, times 0
[  642.311073] CPU: 1 PID: 4580 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  642.318161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  642.327497] Call Trace:
[  642.330075]  dump_stack+0x1c9/0x2b4
[  642.333702]  ? dump_stack_print_info.cold.2+0x52/0x52
[  642.338880]  ? save_stack+0x43/0xd0
[  642.342490]  ? kasan_kmalloc+0xc4/0xe0
[  642.346379]  ? kasan_slab_alloc+0x12/0x20
[  642.350567]  ? kmem_cache_alloc+0x12e/0x760
[  642.354874]  ? copy_creds+0x7b/0x470
[  642.358577]  should_fail.cold.4+0xa/0x1a
[  642.362626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  642.367718]  ? find_held_lock+0x36/0x1c0
[  642.371767]  ? find_held_lock+0x36/0x1c0
[  642.375827]  ? check_same_owner+0x340/0x340
[  642.380131]  ? rcu_is_watching+0x8c/0x150
[  642.384261]  ? rcu_note_context_switch+0x730/0x730
[  642.389179]  ? security_prepare_creds+0x94/0xc0
[  642.393858]  __should_failslab+0x124/0x180
[  642.398107]  should_failslab+0x9/0x14
[  642.401891]  kmem_cache_alloc+0x2af/0x760
[  642.406035]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  642.411051]  __delayacct_tsk_init+0x20/0x80
[  642.415359]  copy_process.part.39+0x2ba8/0x7250
[  642.420019]  ? __lock_acquire+0x7fc/0x5020
[  642.424248]  ? __lock_acquire+0x7fc/0x5020
[  642.428468]  ? __lock_acquire+0x7fc/0x5020
[  642.432694]  ? __cleanup_sighand+0x70/0x70
[  642.436912]  ? debug_check_no_locks_freed+0x310/0x310
[  642.442085]  ? debug_check_no_locks_freed+0x310/0x310
[  642.447267]  ? print_usage_bug+0xc0/0xc0
[  642.451335]  ? print_usage_bug+0xc0/0xc0
[  642.455383]  ? d_splice_alias+0x7c9/0x11f0
[  642.459601]  ? lock_downgrade+0x8f0/0x8f0
[  642.463742]  ? d_instantiate_anon+0x30/0x30
[  642.468063]  ? __lock_acquire+0x7fc/0x5020
[  642.472300]  ? print_usage_bug+0xc0/0xc0
[  642.476357]  ? debug_check_no_locks_freed+0x310/0x310
[  642.481534]  ? debug_check_no_locks_freed+0x310/0x310
[  642.486719]  ? __lock_acquire+0x7fc/0x5020
[  642.490943]  ? print_usage_bug+0xc0/0xc0
[  642.494989]  ? lock_downgrade+0x8f0/0x8f0
[  642.499140]  ? debug_check_no_locks_freed+0x310/0x310
[  642.504314]  ? print_usage_bug+0xc0/0xc0
[  642.508357]  ? graph_lock+0x170/0x170
[  642.512143]  ? do_raw_spin_lock+0xc1/0x200
[  642.516364]  ? graph_lock+0x170/0x170
[  642.520161]  ? graph_lock+0x170/0x170
[  642.523962]  ? find_held_lock+0x36/0x1c0
[  642.528029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.533561]  ? _parse_integer+0x13b/0x190
[  642.537704]  ? graph_lock+0x170/0x170
[  642.541507]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  642.547043]  ? _kstrtoull+0x188/0x250
[  642.550830]  ? _parse_integer+0x190/0x190
[  642.554960]  ? graph_lock+0x170/0x170
[  642.558751]  ? lock_release+0xa30/0xa30
[  642.562719]  ? find_held_lock+0x36/0x1c0
[  642.566767]  ? lock_downgrade+0x8f0/0x8f0
[  642.570904]  ? kasan_check_read+0x11/0x20
[  642.575044]  ? rcu_is_watching+0x8c/0x150
[  642.579197]  ? pid_task+0x115/0x200
[  642.582815]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  642.587210]  ? save_stack+0xa9/0xd0
[  642.590821]  ? graph_lock+0x170/0x170
[  642.594607]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  642.600124]  ? proc_fail_nth_write+0x9e/0x210
[  642.604611]  ? proc_cwd_link+0x1d0/0x1d0
[  642.608656]  ? kasan_check_read+0x11/0x20
[  642.612798]  ? find_held_lock+0x36/0x1c0
[  642.616847]  _do_fork+0x291/0x12a0
[  642.620385]  ? fork_idle+0x1a0/0x1a0
[  642.624087]  ? __lock_is_held+0xb5/0x140
[  642.628142]  ? __sb_end_write+0xac/0xe0
[  642.632101]  ? vfs_write+0x2a8/0x560
[  642.635814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.641333]  ? ksys_write+0x1ae/0x260
[  642.645115]  ? __ia32_sys_read+0xb0/0xb0
[  642.649189]  ? syscall_slow_exit_work+0x500/0x500
[  642.654026]  __x64_sys_clone+0xbf/0x150
[  642.657993]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  642.663011]  do_syscall_64+0x1b9/0x820
[  642.666891]  ? syscall_return_slowpath+0x5e0/0x5e0
[  642.671815]  ? syscall_return_slowpath+0x31d/0x5e0
[  642.676732]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  642.682080]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  642.686923]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  642.692104] RIP: 0033:0x441519
executing program
[  642.695269] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  642.714444] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  642.722138] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  642.729400] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  642.736653] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  642.743914] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  642.751182] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  642.763260] FAULT_INJECTION: forcing a failure.
[  642.763260] name failslab, interval 1, probability 0, space 0, times 0
[  642.774489] CPU: 0 PID: 4582 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  642.781611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  642.790944] Call Trace:
[  642.793521]  dump_stack+0x1c9/0x2b4
[  642.797142]  ? dump_stack_print_info.cold.2+0x52/0x52
[  642.802328]  ? save_stack+0x43/0xd0
[  642.805937]  ? kasan_kmalloc+0xc4/0xe0
[  642.809806]  ? kasan_slab_alloc+0x12/0x20
[  642.813931]  ? kmem_cache_alloc+0x12e/0x760
[  642.818233]  ? copy_creds+0x7b/0x470
[  642.821933]  should_fail.cold.4+0xa/0x1a
[  642.825977]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  642.831062]  ? find_held_lock+0x36/0x1c0
[  642.835109]  ? find_held_lock+0x36/0x1c0
[  642.839160]  ? check_same_owner+0x340/0x340
[  642.843478]  ? rcu_is_watching+0x8c/0x150
[  642.847611]  ? rcu_note_context_switch+0x730/0x730
[  642.852524]  ? security_prepare_creds+0x94/0xc0
[  642.857194]  __should_failslab+0x124/0x180
[  642.861412]  should_failslab+0x9/0x14
[  642.865202]  kmem_cache_alloc+0x2af/0x760
[  642.869332]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  642.874420]  __delayacct_tsk_init+0x20/0x80
[  642.878724]  copy_process.part.39+0x2ba8/0x7250
[  642.883375]  ? __lock_acquire+0x7fc/0x5020
[  642.887593]  ? __lock_acquire+0x7fc/0x5020
[  642.891807]  ? __lock_acquire+0x7fc/0x5020
[  642.896042]  ? __cleanup_sighand+0x70/0x70
[  642.900259]  ? debug_check_no_locks_freed+0x310/0x310
[  642.905431]  ? debug_check_no_locks_freed+0x310/0x310
[  642.910602]  ? print_usage_bug+0xc0/0xc0
[  642.914647]  ? print_usage_bug+0xc0/0xc0
[  642.918692]  ? d_splice_alias+0x7c9/0x11f0
[  642.922918]  ? lock_downgrade+0x8f0/0x8f0
[  642.927049]  ? d_instantiate_anon+0x30/0x30
[  642.931367]  ? __lock_acquire+0x7fc/0x5020
[  642.935599]  ? print_usage_bug+0xc0/0xc0
[  642.939661]  ? debug_check_no_locks_freed+0x310/0x310
[  642.944836]  ? debug_check_no_locks_freed+0x310/0x310
[  642.950027]  ? __lock_acquire+0x7fc/0x5020
[  642.954260]  ? print_usage_bug+0xc0/0xc0
[  642.958299]  ? lock_downgrade+0x8f0/0x8f0
[  642.962434]  ? debug_check_no_locks_freed+0x310/0x310
[  642.967608]  ? print_usage_bug+0xc0/0xc0
[  642.971652]  ? graph_lock+0x170/0x170
[  642.975434]  ? do_raw_spin_lock+0xc1/0x200
[  642.979668]  ? graph_lock+0x170/0x170
[  642.983451]  ? graph_lock+0x170/0x170
[  642.987237]  ? find_held_lock+0x36/0x1c0
[  642.991279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.996810]  ? _parse_integer+0x13b/0x190
[  643.000950]  ? graph_lock+0x170/0x170
[  643.004746]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.010270]  ? _kstrtoull+0x188/0x250
[  643.014052]  ? _parse_integer+0x190/0x190
[  643.018193]  ? graph_lock+0x170/0x170
[  643.021984]  ? lock_release+0xa30/0xa30
[  643.025943]  ? find_held_lock+0x36/0x1c0
[  643.030009]  ? lock_downgrade+0x8f0/0x8f0
[  643.034159]  ? kasan_check_read+0x11/0x20
[  643.038290]  ? rcu_is_watching+0x8c/0x150
[  643.042439]  ? pid_task+0x115/0x200
[  643.046049]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  643.050441]  ? save_stack+0xa9/0xd0
[  643.054051]  ? graph_lock+0x170/0x170
[  643.057840]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.063376]  ? proc_fail_nth_write+0x9e/0x210
[  643.067855]  ? proc_cwd_link+0x1d0/0x1d0
[  643.071901]  ? kasan_check_read+0x11/0x20
[  643.076050]  ? find_held_lock+0x36/0x1c0
[  643.080188]  _do_fork+0x291/0x12a0
[  643.083720]  ? fork_idle+0x1a0/0x1a0
[  643.087429]  ? __lock_is_held+0xb5/0x140
[  643.091478]  ? __sb_end_write+0xac/0xe0
[  643.095441]  ? vfs_write+0x2a8/0x560
[  643.099152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.104668]  ? ksys_write+0x1ae/0x260
[  643.108449]  ? __ia32_sys_read+0xb0/0xb0
[  643.112494]  ? syscall_slow_exit_work+0x500/0x500
[  643.117317]  __x64_sys_clone+0xbf/0x150
[  643.121273]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  643.126286]  do_syscall_64+0x1b9/0x820
[  643.130157]  ? syscall_return_slowpath+0x5e0/0x5e0
[  643.135078]  ? syscall_return_slowpath+0x31d/0x5e0
[  643.139992]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  643.145341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  643.150169]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  643.155340] RIP: 0033:0x441519
[  643.158509] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  643.177683] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  643.185383] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  643.192640] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  643.199901] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  643.207153] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  643.214414] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  643.226830] FAULT_INJECTION: forcing a failure.
[  643.226830] name failslab, interval 1, probability 0, space 0, times 0
[  643.238109] CPU: 0 PID: 4584 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  643.245194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  643.254527] Call Trace:
[  643.257103]  dump_stack+0x1c9/0x2b4
[  643.260712]  ? dump_stack_print_info.cold.2+0x52/0x52
[  643.265888]  ? save_stack+0x43/0xd0
[  643.269499]  ? kasan_kmalloc+0xc4/0xe0
[  643.273367]  ? kasan_slab_alloc+0x12/0x20
[  643.277508]  ? kmem_cache_alloc+0x12e/0x760
[  643.281821]  ? copy_creds+0x7b/0x470
[  643.285524]  should_fail.cold.4+0xa/0x1a
[  643.289569]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  643.294668]  ? find_held_lock+0x36/0x1c0
[  643.298719]  ? find_held_lock+0x36/0x1c0
[  643.302770]  ? check_same_owner+0x340/0x340
[  643.307072]  ? rcu_is_watching+0x8c/0x150
[  643.311216]  ? rcu_note_context_switch+0x730/0x730
[  643.316130]  ? security_prepare_creds+0x94/0xc0
[  643.320795]  __should_failslab+0x124/0x180
[  643.325035]  should_failslab+0x9/0x14
[  643.328908]  kmem_cache_alloc+0x2af/0x760
[  643.333044]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  643.338050]  __delayacct_tsk_init+0x20/0x80
[  643.342365]  copy_process.part.39+0x2ba8/0x7250
[  643.347035]  ? __lock_acquire+0x7fc/0x5020
[  643.351260]  ? __lock_acquire+0x7fc/0x5020
[  643.355476]  ? __lock_acquire+0x7fc/0x5020
[  643.359698]  ? __cleanup_sighand+0x70/0x70
[  643.363914]  ? debug_check_no_locks_freed+0x310/0x310
[  643.369084]  ? debug_check_no_locks_freed+0x310/0x310
[  643.374254]  ? print_usage_bug+0xc0/0xc0
[  643.378311]  ? print_usage_bug+0xc0/0xc0
[  643.382376]  ? d_splice_alias+0x7c9/0x11f0
[  643.386593]  ? lock_downgrade+0x8f0/0x8f0
[  643.390728]  ? d_instantiate_anon+0x30/0x30
[  643.395038]  ? __lock_acquire+0x7fc/0x5020
[  643.399267]  ? print_usage_bug+0xc0/0xc0
[  643.403324]  ? debug_check_no_locks_freed+0x310/0x310
[  643.409128]  ? debug_check_no_locks_freed+0x310/0x310
[  643.414300]  ? __lock_acquire+0x7fc/0x5020
[  643.418518]  ? print_usage_bug+0xc0/0xc0
[  643.422567]  ? lock_downgrade+0x8f0/0x8f0
[  643.426704]  ? debug_check_no_locks_freed+0x310/0x310
[  643.431879]  ? print_usage_bug+0xc0/0xc0
[  643.435933]  ? graph_lock+0x170/0x170
[  643.439728]  ? do_raw_spin_lock+0xc1/0x200
[  643.443945]  ? graph_lock+0x170/0x170
[  643.447727]  ? graph_lock+0x170/0x170
[  643.451532]  ? find_held_lock+0x36/0x1c0
[  643.455576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.461097]  ? _parse_integer+0x13b/0x190
[  643.465241]  ? graph_lock+0x170/0x170
[  643.469031]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.474550]  ? _kstrtoull+0x188/0x250
[  643.478341]  ? _parse_integer+0x190/0x190
[  643.482472]  ? graph_lock+0x170/0x170
[  643.486254]  ? lock_release+0xa30/0xa30
[  643.490210]  ? find_held_lock+0x36/0x1c0
[  643.494266]  ? lock_downgrade+0x8f0/0x8f0
[  643.498398]  ? kasan_check_read+0x11/0x20
[  643.502528]  ? rcu_is_watching+0x8c/0x150
[  643.506671]  ? pid_task+0x115/0x200
[  643.510291]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  643.514695]  ? save_stack+0xa9/0xd0
[  643.518315]  ? graph_lock+0x170/0x170
[  643.522104]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.527624]  ? proc_fail_nth_write+0x9e/0x210
[  643.532099]  ? proc_cwd_link+0x1d0/0x1d0
[  643.536145]  ? kasan_check_read+0x11/0x20
[  643.540277]  ? find_held_lock+0x36/0x1c0
[  643.544324]  _do_fork+0x291/0x12a0
[  643.547849]  ? fork_idle+0x1a0/0x1a0
[  643.551548]  ? __lock_is_held+0xb5/0x140
[  643.555616]  ? __sb_end_write+0xac/0xe0
[  643.559579]  ? vfs_write+0x2a8/0x560
[  643.563288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.568804]  ? ksys_write+0x1ae/0x260
[  643.572589]  ? __ia32_sys_read+0xb0/0xb0
[  643.576637]  ? syscall_slow_exit_work+0x500/0x500
[  643.581465]  __x64_sys_clone+0xbf/0x150
[  643.585427]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  643.590428]  do_syscall_64+0x1b9/0x820
[  643.594312]  ? syscall_return_slowpath+0x5e0/0x5e0
[  643.599227]  ? syscall_return_slowpath+0x31d/0x5e0
[  643.604144]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  643.609500]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  643.614333]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  643.619504] RIP: 0033:0x441519
[  643.622672] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  643.641856] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  643.649556] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  643.656812] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  643.664073] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  643.671324] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  643.678574] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  643.690796] FAULT_INJECTION: forcing a failure.
[  643.690796] name failslab, interval 1, probability 0, space 0, times 0
[  643.702073] CPU: 1 PID: 4586 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  643.709177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  643.718516] Call Trace:
[  643.721101]  dump_stack+0x1c9/0x2b4
[  643.724716]  ? dump_stack_print_info.cold.2+0x52/0x52
[  643.729899]  ? save_stack+0x43/0xd0
[  643.733511]  ? kasan_kmalloc+0xc4/0xe0
[  643.737384]  ? kasan_slab_alloc+0x12/0x20
[  643.741512]  ? kmem_cache_alloc+0x12e/0x760
[  643.745824]  ? copy_creds+0x7b/0x470
[  643.749551]  should_fail.cold.4+0xa/0x1a
[  643.753599]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  643.758688]  ? find_held_lock+0x36/0x1c0
[  643.762744]  ? find_held_lock+0x36/0x1c0
[  643.766811]  ? check_same_owner+0x340/0x340
[  643.771125]  ? rcu_is_watching+0x8c/0x150
[  643.775264]  ? rcu_note_context_switch+0x730/0x730
[  643.780182]  ? security_prepare_creds+0x94/0xc0
[  643.784842]  __should_failslab+0x124/0x180
[  643.789081]  should_failslab+0x9/0x14
[  643.792875]  kmem_cache_alloc+0x2af/0x760
[  643.797013]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  643.802065]  __delayacct_tsk_init+0x20/0x80
[  643.806402]  copy_process.part.39+0x2ba8/0x7250
[  643.811063]  ? __lock_acquire+0x7fc/0x5020
[  643.815286]  ? __lock_acquire+0x7fc/0x5020
[  643.819516]  ? __lock_acquire+0x7fc/0x5020
[  643.823740]  ? __cleanup_sighand+0x70/0x70
[  643.827958]  ? debug_check_no_locks_freed+0x310/0x310
[  643.833130]  ? debug_check_no_locks_freed+0x310/0x310
[  643.838312]  ? print_usage_bug+0xc0/0xc0
[  643.842357]  ? print_usage_bug+0xc0/0xc0
[  643.846412]  ? d_splice_alias+0x7c9/0x11f0
[  643.850639]  ? lock_downgrade+0x8f0/0x8f0
[  643.854770]  ? d_instantiate_anon+0x30/0x30
[  643.859101]  ? __lock_acquire+0x7fc/0x5020
[  643.863336]  ? print_usage_bug+0xc0/0xc0
[  643.867396]  ? debug_check_no_locks_freed+0x310/0x310
[  643.872575]  ? debug_check_no_locks_freed+0x310/0x310
[  643.877759]  ? __lock_acquire+0x7fc/0x5020
[  643.881978]  ? print_usage_bug+0xc0/0xc0
[  643.886030]  ? lock_downgrade+0x8f0/0x8f0
[  643.890175]  ? debug_check_no_locks_freed+0x310/0x310
[  643.895541]  ? print_usage_bug+0xc0/0xc0
[  643.899596]  ? graph_lock+0x170/0x170
[  643.903378]  ? do_raw_spin_lock+0xc1/0x200
[  643.907597]  ? graph_lock+0x170/0x170
[  643.911404]  ? graph_lock+0x170/0x170
[  643.915281]  ? find_held_lock+0x36/0x1c0
[  643.919328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.924851]  ? _parse_integer+0x13b/0x190
[  643.928985]  ? graph_lock+0x170/0x170
[  643.932775]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.938296]  ? _kstrtoull+0x188/0x250
[  643.942085]  ? _parse_integer+0x190/0x190
[  643.946219]  ? graph_lock+0x170/0x170
[  643.950003]  ? lock_release+0xa30/0xa30
[  643.953970]  ? find_held_lock+0x36/0x1c0
[  643.958027]  ? lock_downgrade+0x8f0/0x8f0
[  643.962178]  ? kasan_check_read+0x11/0x20
[  643.966317]  ? rcu_is_watching+0x8c/0x150
[  643.970451]  ? pid_task+0x115/0x200
[  643.974066]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  643.978470]  ? save_stack+0xa9/0xd0
[  643.982107]  ? graph_lock+0x170/0x170
[  643.985896]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  643.991415]  ? proc_fail_nth_write+0x9e/0x210
[  643.995898]  ? proc_cwd_link+0x1d0/0x1d0
[  643.999954]  ? kasan_check_read+0x11/0x20
[  644.004092]  ? find_held_lock+0x36/0x1c0
[  644.008138]  _do_fork+0x291/0x12a0
[  644.011663]  ? fork_idle+0x1a0/0x1a0
[  644.015361]  ? __lock_is_held+0xb5/0x140
[  644.019410]  ? __sb_end_write+0xac/0xe0
[  644.023377]  ? vfs_write+0x2a8/0x560
[  644.027082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.032601]  ? ksys_write+0x1ae/0x260
[  644.036385]  ? __ia32_sys_read+0xb0/0xb0
[  644.040434]  ? syscall_slow_exit_work+0x500/0x500
[  644.045273]  __x64_sys_clone+0xbf/0x150
[  644.049247]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  644.054246]  do_syscall_64+0x1b9/0x820
[  644.058116]  ? syscall_slow_exit_work+0x500/0x500
[  644.062941]  ? syscall_return_slowpath+0x5e0/0x5e0
[  644.067862]  ? syscall_return_slowpath+0x31d/0x5e0
[  644.072790]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  644.078147]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  644.082977]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  644.088150] RIP: 0033:0x441519
[  644.091322] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  644.110492] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  644.118279] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  644.125566] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  644.132817] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  644.140076] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  644.147327] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  644.159381] FAULT_INJECTION: forcing a failure.
[  644.159381] name failslab, interval 1, probability 0, space 0, times 0
[  644.170697] CPU: 1 PID: 4588 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  644.177779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  644.187127] Call Trace:
[  644.189706]  dump_stack+0x1c9/0x2b4
[  644.193338]  ? dump_stack_print_info.cold.2+0x52/0x52
[  644.198516]  ? save_stack+0x43/0xd0
[  644.202130]  ? kasan_kmalloc+0xc4/0xe0
[  644.206000]  ? kasan_slab_alloc+0x12/0x20
[  644.210137]  ? kmem_cache_alloc+0x12e/0x760
[  644.214457]  ? copy_creds+0x7b/0x470
[  644.218158]  should_fail.cold.4+0xa/0x1a
[  644.222203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.227302]  ? find_held_lock+0x36/0x1c0
[  644.231354]  ? find_held_lock+0x36/0x1c0
[  644.235416]  ? check_same_owner+0x340/0x340
[  644.239718]  ? rcu_is_watching+0x8c/0x150
[  644.243848]  ? rcu_note_context_switch+0x730/0x730
[  644.248768]  ? security_prepare_creds+0x94/0xc0
[  644.253432]  __should_failslab+0x124/0x180
[  644.257651]  should_failslab+0x9/0x14
[  644.261447]  kmem_cache_alloc+0x2af/0x760
[  644.265588]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  644.270601]  __delayacct_tsk_init+0x20/0x80
[  644.274930]  copy_process.part.39+0x2ba8/0x7250
[  644.279601]  ? __lock_acquire+0x7fc/0x5020
[  644.283830]  ? __lock_acquire+0x7fc/0x5020
[  644.288063]  ? __lock_acquire+0x7fc/0x5020
[  644.292295]  ? __cleanup_sighand+0x70/0x70
[  644.296552]  ? debug_check_no_locks_freed+0x310/0x310
[  644.301726]  ? debug_check_no_locks_freed+0x310/0x310
[  644.306900]  ? print_usage_bug+0xc0/0xc0
[  644.310955]  ? print_usage_bug+0xc0/0xc0
[  644.315001]  ? d_splice_alias+0x7c9/0x11f0
[  644.319238]  ? lock_downgrade+0x8f0/0x8f0
[  644.323369]  ? d_instantiate_anon+0x30/0x30
[  644.327675]  ? __lock_acquire+0x7fc/0x5020
[  644.331895]  ? print_usage_bug+0xc0/0xc0
[  644.335943]  ? debug_check_no_locks_freed+0x310/0x310
[  644.341120]  ? debug_check_no_locks_freed+0x310/0x310
[  644.346297]  ? __lock_acquire+0x7fc/0x5020
[  644.350513]  ? print_usage_bug+0xc0/0xc0
[  644.354558]  ? lock_downgrade+0x8f0/0x8f0
[  644.358692]  ? debug_check_no_locks_freed+0x310/0x310
[  644.363869]  ? print_usage_bug+0xc0/0xc0
[  644.367911]  ? graph_lock+0x170/0x170
[  644.371692]  ? do_raw_spin_lock+0xc1/0x200
[  644.375910]  ? graph_lock+0x170/0x170
[  644.379694]  ? graph_lock+0x170/0x170
[  644.383503]  ? find_held_lock+0x36/0x1c0
[  644.387549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.393070]  ? _parse_integer+0x13b/0x190
[  644.397213]  ? graph_lock+0x170/0x170
[  644.401000]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  644.406526]  ? _kstrtoull+0x188/0x250
[  644.410311]  ? _parse_integer+0x190/0x190
[  644.414448]  ? graph_lock+0x170/0x170
[  644.418242]  ? lock_release+0xa30/0xa30
[  644.422221]  ? find_held_lock+0x36/0x1c0
[  644.426279]  ? lock_downgrade+0x8f0/0x8f0
[  644.430415]  ? kasan_check_read+0x11/0x20
[  644.434544]  ? rcu_is_watching+0x8c/0x150
[  644.438676]  ? pid_task+0x115/0x200
[  644.442301]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  644.446701]  ? save_stack+0xa9/0xd0
[  644.450323]  ? graph_lock+0x170/0x170
[  644.454119]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  644.459641]  ? proc_fail_nth_write+0x9e/0x210
[  644.464120]  ? proc_cwd_link+0x1d0/0x1d0
[  644.468164]  ? kasan_check_read+0x11/0x20
[  644.472298]  ? find_held_lock+0x36/0x1c0
[  644.476344]  _do_fork+0x291/0x12a0
[  644.479871]  ? fork_idle+0x1a0/0x1a0
[  644.483569]  ? __lock_is_held+0xb5/0x140
[  644.487622]  ? __sb_end_write+0xac/0xe0
[  644.491578]  ? vfs_write+0x2a8/0x560
[  644.495278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.500793]  ? ksys_write+0x1ae/0x260
[  644.504575]  ? __ia32_sys_read+0xb0/0xb0
[  644.508621]  ? syscall_slow_exit_work+0x500/0x500
[  644.513449]  __x64_sys_clone+0xbf/0x150
[  644.517411]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  644.522413]  do_syscall_64+0x1b9/0x820
[  644.526283]  ? syscall_return_slowpath+0x5e0/0x5e0
[  644.531195]  ? syscall_return_slowpath+0x31d/0x5e0
[  644.536115]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  644.541469]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  644.546311]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  644.551483] RIP: 0033:0x441519
executing program
[  644.554652] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  644.573826] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  644.581520] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  644.588776] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  644.596046] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  644.603308] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  644.610558] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  644.623201] FAULT_INJECTION: forcing a failure.
[  644.623201] name failslab, interval 1, probability 0, space 0, times 0
[  644.634432] CPU: 1 PID: 4590 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  644.641518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  644.650855] Call Trace:
[  644.653434]  dump_stack+0x1c9/0x2b4
[  644.657054]  ? dump_stack_print_info.cold.2+0x52/0x52
[  644.662229]  ? save_stack+0x43/0xd0
[  644.665845]  ? kasan_kmalloc+0xc4/0xe0
[  644.669719]  ? kasan_slab_alloc+0x12/0x20
[  644.673857]  ? kmem_cache_alloc+0x12e/0x760
[  644.678164]  ? copy_creds+0x7b/0x470
[  644.681874]  should_fail.cold.4+0xa/0x1a
[  644.685920]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.691035]  ? find_held_lock+0x36/0x1c0
[  644.695092]  ? find_held_lock+0x36/0x1c0
[  644.699148]  ? check_same_owner+0x340/0x340
[  644.703454]  ? rcu_is_watching+0x8c/0x150
[  644.707595]  ? rcu_note_context_switch+0x730/0x730
[  644.712522]  ? security_prepare_creds+0x94/0xc0
[  644.717207]  __should_failslab+0x124/0x180
[  644.721429]  should_failslab+0x9/0x14
[  644.725213]  kmem_cache_alloc+0x2af/0x760
[  644.729358]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  644.734365]  __delayacct_tsk_init+0x20/0x80
[  644.738674]  copy_process.part.39+0x2ba8/0x7250
[  644.743328]  ? __lock_acquire+0x7fc/0x5020
[  644.747568]  ? __lock_acquire+0x7fc/0x5020
[  644.751794]  ? __lock_acquire+0x7fc/0x5020
[  644.756032]  ? __cleanup_sighand+0x70/0x70
[  644.760256]  ? debug_check_no_locks_freed+0x310/0x310
[  644.765427]  ? debug_check_no_locks_freed+0x310/0x310
[  644.770604]  ? print_usage_bug+0xc0/0xc0
[  644.774652]  ? print_usage_bug+0xc0/0xc0
[  644.778699]  ? d_splice_alias+0x7c9/0x11f0
[  644.782917]  ? lock_downgrade+0x8f0/0x8f0
[  644.787060]  ? d_instantiate_anon+0x30/0x30
[  644.791381]  ? __lock_acquire+0x7fc/0x5020
[  644.795604]  ? print_usage_bug+0xc0/0xc0
[  644.799655]  ? debug_check_no_locks_freed+0x310/0x310
[  644.804833]  ? debug_check_no_locks_freed+0x310/0x310
[  644.810016]  ? __lock_acquire+0x7fc/0x5020
[  644.814246]  ? print_usage_bug+0xc0/0xc0
[  644.818304]  ? lock_downgrade+0x8f0/0x8f0
[  644.822456]  ? debug_check_no_locks_freed+0x310/0x310
[  644.827642]  ? print_usage_bug+0xc0/0xc0
[  644.831709]  ? graph_lock+0x170/0x170
[  644.835492]  ? do_raw_spin_lock+0xc1/0x200
[  644.839710]  ? graph_lock+0x170/0x170
[  644.843494]  ? graph_lock+0x170/0x170
[  644.847283]  ? find_held_lock+0x36/0x1c0
[  644.851343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.856864]  ? _parse_integer+0x13b/0x190
[  644.860994]  ? graph_lock+0x170/0x170
[  644.864790]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  644.870307]  ? _kstrtoull+0x188/0x250
[  644.874093]  ? _parse_integer+0x190/0x190
[  644.878223]  ? graph_lock+0x170/0x170
[  644.882019]  ? lock_release+0xa30/0xa30
[  644.885986]  ? find_held_lock+0x36/0x1c0
[  644.890051]  ? lock_downgrade+0x8f0/0x8f0
[  644.894194]  ? kasan_check_read+0x11/0x20
[  644.898327]  ? rcu_is_watching+0x8c/0x150
[  644.902461]  ? pid_task+0x115/0x200
[  644.906084]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  644.910485]  ? save_stack+0xa9/0xd0
[  644.914106]  ? graph_lock+0x170/0x170
[  644.917892]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  644.923424]  ? proc_fail_nth_write+0x9e/0x210
[  644.927901]  ? proc_cwd_link+0x1d0/0x1d0
[  644.931961]  ? kasan_check_read+0x11/0x20
[  644.936106]  ? find_held_lock+0x36/0x1c0
[  644.940152]  _do_fork+0x291/0x12a0
[  644.943681]  ? fork_idle+0x1a0/0x1a0
[  644.947393]  ? __lock_is_held+0xb5/0x140
[  644.951444]  ? __sb_end_write+0xac/0xe0
[  644.955411]  ? vfs_write+0x2a8/0x560
[  644.959112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.964632]  ? ksys_write+0x1ae/0x260
[  644.968424]  ? __ia32_sys_read+0xb0/0xb0
[  644.972492]  ? syscall_slow_exit_work+0x500/0x500
[  644.977324]  __x64_sys_clone+0xbf/0x150
[  644.981299]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  644.986313]  do_syscall_64+0x1b9/0x820
[  644.990185]  ? syscall_return_slowpath+0x5e0/0x5e0
[  644.995112]  ? syscall_return_slowpath+0x31d/0x5e0
[  645.000043]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  645.005395]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.010225]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  645.015420] RIP: 0033:0x441519
[  645.018588] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  645.037775] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  645.045476] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  645.052741] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  645.059996] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  645.067261] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  645.074527] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  645.087167] FAULT_INJECTION: forcing a failure.
[  645.087167] name failslab, interval 1, probability 0, space 0, times 0
[  645.098428] CPU: 1 PID: 4592 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  645.105515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  645.114851] Call Trace:
[  645.117427]  dump_stack+0x1c9/0x2b4
[  645.121050]  ? dump_stack_print_info.cold.2+0x52/0x52
[  645.126221]  ? save_stack+0x43/0xd0
[  645.129831]  ? kasan_kmalloc+0xc4/0xe0
[  645.133718]  ? kasan_slab_alloc+0x12/0x20
[  645.137857]  ? kmem_cache_alloc+0x12e/0x760
[  645.142168]  ? copy_creds+0x7b/0x470
[  645.145884]  should_fail.cold.4+0xa/0x1a
[  645.149930]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  645.155039]  ? find_held_lock+0x36/0x1c0
[  645.159099]  ? find_held_lock+0x36/0x1c0
[  645.163166]  ? check_same_owner+0x340/0x340
[  645.167495]  ? rcu_is_watching+0x8c/0x150
[  645.171632]  ? rcu_note_context_switch+0x730/0x730
[  645.176543]  ? security_prepare_creds+0x94/0xc0
[  645.181198]  __should_failslab+0x124/0x180
[  645.185422]  should_failslab+0x9/0x14
[  645.189206]  kmem_cache_alloc+0x2af/0x760
[  645.193347]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  645.198980]  __delayacct_tsk_init+0x20/0x80
[  645.203307]  copy_process.part.39+0x2ba8/0x7250
[  645.207993]  ? __lock_acquire+0x7fc/0x5020
[  645.212235]  ? __lock_acquire+0x7fc/0x5020
[  645.216454]  ? __lock_acquire+0x7fc/0x5020
[  645.220692]  ? __cleanup_sighand+0x70/0x70
[  645.224926]  ? debug_check_no_locks_freed+0x310/0x310
[  645.230099]  ? debug_check_no_locks_freed+0x310/0x310
[  645.235275]  ? print_usage_bug+0xc0/0xc0
[  645.239328]  ? print_usage_bug+0xc0/0xc0
[  645.243385]  ? d_splice_alias+0x7c9/0x11f0
[  645.247604]  ? lock_downgrade+0x8f0/0x8f0
[  645.251752]  ? d_instantiate_anon+0x30/0x30
[  645.256065]  ? __lock_acquire+0x7fc/0x5020
[  645.260290]  ? print_usage_bug+0xc0/0xc0
[  645.264346]  ? debug_check_no_locks_freed+0x310/0x310
[  645.269532]  ? debug_check_no_locks_freed+0x310/0x310
[  645.274707]  ? __lock_acquire+0x7fc/0x5020
[  645.279188]  ? print_usage_bug+0xc0/0xc0
[  645.283236]  ? lock_downgrade+0x8f0/0x8f0
[  645.287385]  ? debug_check_no_locks_freed+0x310/0x310
[  645.292573]  ? print_usage_bug+0xc0/0xc0
[  645.296618]  ? graph_lock+0x170/0x170
[  645.300412]  ? do_raw_spin_lock+0xc1/0x200
[  645.304632]  ? graph_lock+0x170/0x170
[  645.308419]  ? graph_lock+0x170/0x170
[  645.312205]  ? find_held_lock+0x36/0x1c0
[  645.316251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.321779]  ? _parse_integer+0x13b/0x190
[  645.325926]  ? graph_lock+0x170/0x170
[  645.329725]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  645.335243]  ? _kstrtoull+0x188/0x250
[  645.339032]  ? _parse_integer+0x190/0x190
[  645.343183]  ? graph_lock+0x170/0x170
[  645.346985]  ? lock_release+0xa30/0xa30
[  645.350947]  ? find_held_lock+0x36/0x1c0
[  645.355003]  ? lock_downgrade+0x8f0/0x8f0
[  645.359148]  ? kasan_check_read+0x11/0x20
[  645.363279]  ? rcu_is_watching+0x8c/0x150
[  645.367430]  ? pid_task+0x115/0x200
[  645.371047]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  645.375460]  ? save_stack+0xa9/0xd0
[  645.379080]  ? graph_lock+0x170/0x170
[  645.382887]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  645.388410]  ? proc_fail_nth_write+0x9e/0x210
[  645.392889]  ? proc_cwd_link+0x1d0/0x1d0
[  645.396945]  ? kasan_check_read+0x11/0x20
[  645.401098]  ? find_held_lock+0x36/0x1c0
[  645.405157]  _do_fork+0x291/0x12a0
[  645.408686]  ? fork_idle+0x1a0/0x1a0
[  645.412399]  ? __lock_is_held+0xb5/0x140
[  645.416452]  ? __sb_end_write+0xac/0xe0
[  645.420420]  ? vfs_write+0x2a8/0x560
[  645.424121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.429641]  ? ksys_write+0x1ae/0x260
[  645.433427]  ? __ia32_sys_read+0xb0/0xb0
[  645.437495]  ? syscall_slow_exit_work+0x500/0x500
[  645.442332]  __x64_sys_clone+0xbf/0x150
[  645.446300]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  645.451312]  do_syscall_64+0x1b9/0x820
[  645.455195]  ? syscall_return_slowpath+0x5e0/0x5e0
[  645.460107]  ? syscall_return_slowpath+0x31d/0x5e0
[  645.465036]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  645.470398]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.475237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  645.480415] RIP: 0033:0x441519
[  645.483605] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  645.502791] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  645.510491] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  645.518190] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  645.525446] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  645.532709] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  645.540063] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  645.552111] FAULT_INJECTION: forcing a failure.
[  645.552111] name failslab, interval 1, probability 0, space 0, times 0
[  645.563390] CPU: 0 PID: 4594 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  645.570516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  645.579854] Call Trace:
[  645.582433]  dump_stack+0x1c9/0x2b4
[  645.586060]  ? dump_stack_print_info.cold.2+0x52/0x52
[  645.591276]  ? save_stack+0x43/0xd0
[  645.594889]  ? kasan_kmalloc+0xc4/0xe0
[  645.598776]  ? kasan_slab_alloc+0x12/0x20
[  645.602927]  ? kmem_cache_alloc+0x12e/0x760
[  645.607243]  ? copy_creds+0x7b/0x470
[  645.610948]  should_fail.cold.4+0xa/0x1a
[  645.614998]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  645.620092]  ? find_held_lock+0x36/0x1c0
[  645.624144]  ? find_held_lock+0x36/0x1c0
[  645.628197]  ? check_same_owner+0x340/0x340
[  645.632501]  ? rcu_is_watching+0x8c/0x150
[  645.636630]  ? rcu_note_context_switch+0x730/0x730
[  645.641544]  ? security_prepare_creds+0x94/0xc0
[  645.646205]  __should_failslab+0x124/0x180
[  645.650442]  should_failslab+0x9/0x14
[  645.654226]  kmem_cache_alloc+0x2af/0x760
[  645.658360]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  645.663363]  __delayacct_tsk_init+0x20/0x80
[  645.667680]  copy_process.part.39+0x2ba8/0x7250
[  645.680165]  ? __lock_acquire+0x7fc/0x5020
[  645.684400]  ? __lock_acquire+0x7fc/0x5020
[  645.688623]  ? __lock_acquire+0x7fc/0x5020
[  645.692868]  ? __cleanup_sighand+0x70/0x70
[  645.697090]  ? debug_check_no_locks_freed+0x310/0x310
[  645.702268]  ? debug_check_no_locks_freed+0x310/0x310
[  645.707448]  ? print_usage_bug+0xc0/0xc0
[  645.711504]  ? print_usage_bug+0xc0/0xc0
[  645.715555]  ? d_splice_alias+0x7c9/0x11f0
[  645.719775]  ? lock_downgrade+0x8f0/0x8f0
[  645.723908]  ? d_instantiate_anon+0x30/0x30
[  645.728216]  ? __lock_acquire+0x7fc/0x5020
[  645.732442]  ? print_usage_bug+0xc0/0xc0
[  645.736507]  ? debug_check_no_locks_freed+0x310/0x310
[  645.741686]  ? debug_check_no_locks_freed+0x310/0x310
[  645.746863]  ? __lock_acquire+0x7fc/0x5020
[  645.751091]  ? print_usage_bug+0xc0/0xc0
[  645.755147]  ? lock_downgrade+0x8f0/0x8f0
[  645.759311]  ? debug_check_no_locks_freed+0x310/0x310
[  645.764494]  ? print_usage_bug+0xc0/0xc0
[  645.768553]  ? graph_lock+0x170/0x170
[  645.772335]  ? do_raw_spin_lock+0xc1/0x200
[  645.776557]  ? graph_lock+0x170/0x170
[  645.780340]  ? graph_lock+0x170/0x170
[  645.784135]  ? find_held_lock+0x36/0x1c0
[  645.788178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.793699]  ? _parse_integer+0x13b/0x190
[  645.797839]  ? graph_lock+0x170/0x170
[  645.801626]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  645.807152]  ? _kstrtoull+0x188/0x250
[  645.810934]  ? _parse_integer+0x190/0x190
[  645.815063]  ? graph_lock+0x170/0x170
[  645.818848]  ? lock_release+0xa30/0xa30
[  645.822805]  ? find_held_lock+0x36/0x1c0
[  645.826852]  ? lock_downgrade+0x8f0/0x8f0
[  645.831000]  ? kasan_check_read+0x11/0x20
[  645.835140]  ? rcu_is_watching+0x8c/0x150
[  645.839272]  ? pid_task+0x115/0x200
[  645.842884]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  645.847284]  ? save_stack+0xa9/0xd0
[  645.850894]  ? graph_lock+0x170/0x170
[  645.854694]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  645.860220]  ? proc_fail_nth_write+0x9e/0x210
[  645.864704]  ? proc_cwd_link+0x1d0/0x1d0
[  645.868747]  ? kasan_check_read+0x11/0x20
[  645.872877]  ? find_held_lock+0x36/0x1c0
[  645.876922]  _do_fork+0x291/0x12a0
[  645.880450]  ? fork_idle+0x1a0/0x1a0
[  645.884146]  ? __lock_is_held+0xb5/0x140
[  645.888197]  ? __sb_end_write+0xac/0xe0
[  645.892149]  ? vfs_write+0x2a8/0x560
[  645.895852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.901373]  ? ksys_write+0x1ae/0x260
[  645.905155]  ? __ia32_sys_read+0xb0/0xb0
[  645.909201]  ? syscall_slow_exit_work+0x500/0x500
[  645.914036]  __x64_sys_clone+0xbf/0x150
[  645.918000]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  645.923009]  do_syscall_64+0x1b9/0x820
[  645.926890]  ? syscall_return_slowpath+0x5e0/0x5e0
[  645.931802]  ? syscall_return_slowpath+0x31d/0x5e0
[  645.936719]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  645.942065]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.946895]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  645.952067] RIP: 0033:0x441519
[  645.955234] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  645.974425] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  645.982115] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  645.989372] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  645.996634] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  646.003886] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  646.011138] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  646.023547] FAULT_INJECTION: forcing a failure.
[  646.023547] name failslab, interval 1, probability 0, space 0, times 0
[  646.034832] CPU: 1 PID: 4596 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  646.041920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  646.051256] Call Trace:
[  646.053831]  dump_stack+0x1c9/0x2b4
[  646.057445]  ? dump_stack_print_info.cold.2+0x52/0x52
[  646.062619]  ? save_stack+0x43/0xd0
[  646.066229]  ? kasan_kmalloc+0xc4/0xe0
[  646.070099]  ? kasan_slab_alloc+0x12/0x20
[  646.074238]  ? kmem_cache_alloc+0x12e/0x760
[  646.078544]  ? copy_creds+0x7b/0x470
[  646.082247]  should_fail.cold.4+0xa/0x1a
[  646.086292]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.091383]  ? find_held_lock+0x36/0x1c0
[  646.095433]  ? find_held_lock+0x36/0x1c0
[  646.099509]  ? check_same_owner+0x340/0x340
[  646.103824]  ? rcu_is_watching+0x8c/0x150
[  646.107957]  ? rcu_note_context_switch+0x730/0x730
[  646.112883]  ? security_prepare_creds+0x94/0xc0
[  646.117552]  __should_failslab+0x124/0x180
[  646.121781]  should_failslab+0x9/0x14
[  646.125577]  kmem_cache_alloc+0x2af/0x760
[  646.129727]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  646.134748]  __delayacct_tsk_init+0x20/0x80
[  646.139075]  copy_process.part.39+0x2ba8/0x7250
[  646.143744]  ? __lock_acquire+0x7fc/0x5020
[  646.147966]  ? __lock_acquire+0x7fc/0x5020
[  646.152214]  ? __lock_acquire+0x7fc/0x5020
[  646.156468]  ? __cleanup_sighand+0x70/0x70
[  646.160710]  ? debug_check_no_locks_freed+0x310/0x310
[  646.165928]  ? debug_check_no_locks_freed+0x310/0x310
[  646.171126]  ? print_usage_bug+0xc0/0xc0
[  646.175174]  ? print_usage_bug+0xc0/0xc0
[  646.179221]  ? d_splice_alias+0x7c9/0x11f0
[  646.183439]  ? lock_downgrade+0x8f0/0x8f0
[  646.187572]  ? d_instantiate_anon+0x30/0x30
[  646.191881]  ? __lock_acquire+0x7fc/0x5020
[  646.196106]  ? print_usage_bug+0xc0/0xc0
[  646.200156]  ? debug_check_no_locks_freed+0x310/0x310
[  646.205336]  ? debug_check_no_locks_freed+0x310/0x310
[  646.210513]  ? __lock_acquire+0x7fc/0x5020
[  646.214729]  ? print_usage_bug+0xc0/0xc0
[  646.218774]  ? lock_downgrade+0x8f0/0x8f0
[  646.222917]  ? debug_check_no_locks_freed+0x310/0x310
[  646.228101]  ? print_usage_bug+0xc0/0xc0
[  646.232153]  ? graph_lock+0x170/0x170
[  646.235933]  ? do_raw_spin_lock+0xc1/0x200
[  646.240166]  ? graph_lock+0x170/0x170
[  646.243952]  ? graph_lock+0x170/0x170
[  646.247761]  ? find_held_lock+0x36/0x1c0
[  646.251818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.257343]  ? _parse_integer+0x13b/0x190
[  646.261499]  ? graph_lock+0x170/0x170
[  646.265298]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  646.270819]  ? _kstrtoull+0x188/0x250
[  646.274602]  ? _parse_integer+0x190/0x190
[  646.278732]  ? graph_lock+0x170/0x170
[  646.282530]  ? lock_release+0xa30/0xa30
[  646.286490]  ? find_held_lock+0x36/0x1c0
[  646.290539]  ? lock_downgrade+0x8f0/0x8f0
[  646.294674]  ? kasan_check_read+0x11/0x20
[  646.298803]  ? rcu_is_watching+0x8c/0x150
[  646.302933]  ? pid_task+0x115/0x200
[  646.306541]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  646.310933]  ? save_stack+0xa9/0xd0
[  646.314556]  ? graph_lock+0x170/0x170
[  646.318344]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  646.323878]  ? proc_fail_nth_write+0x9e/0x210
[  646.328364]  ? proc_cwd_link+0x1d0/0x1d0
[  646.332407]  ? kasan_check_read+0x11/0x20
[  646.336540]  ? find_held_lock+0x36/0x1c0
[  646.340587]  _do_fork+0x291/0x12a0
[  646.344120]  ? fork_idle+0x1a0/0x1a0
[  646.347818]  ? __lock_is_held+0xb5/0x140
[  646.351889]  ? __sb_end_write+0xac/0xe0
[  646.355862]  ? vfs_write+0x2a8/0x560
[  646.359566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.365083]  ? ksys_write+0x1ae/0x260
[  646.368868]  ? __ia32_sys_read+0xb0/0xb0
[  646.372926]  ? syscall_slow_exit_work+0x500/0x500
[  646.377767]  __x64_sys_clone+0xbf/0x150
[  646.381727]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  646.386742]  do_syscall_64+0x1b9/0x820
[  646.390616]  ? syscall_return_slowpath+0x5e0/0x5e0
[  646.395530]  ? syscall_return_slowpath+0x31d/0x5e0
[  646.400446]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  646.405797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  646.410650]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  646.415822] RIP: 0033:0x441519
[  646.418990] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  646.438184] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  646.445888] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  646.453142] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  646.460395] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  646.467677] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  646.474947] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  646.486761] FAULT_INJECTION: forcing a failure.
[  646.486761] name failslab, interval 1, probability 0, space 0, times 0
[  646.498019] CPU: 0 PID: 4598 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  646.505109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  646.514444] Call Trace:
[  646.517022]  dump_stack+0x1c9/0x2b4
[  646.520662]  ? dump_stack_print_info.cold.2+0x52/0x52
[  646.525839]  ? save_stack+0x43/0xd0
[  646.529444]  ? kasan_kmalloc+0xc4/0xe0
[  646.533311]  ? kasan_slab_alloc+0x12/0x20
[  646.537439]  ? kmem_cache_alloc+0x12e/0x760
[  646.541741]  ? copy_creds+0x7b/0x470
[  646.545439]  should_fail.cold.4+0xa/0x1a
[  646.549483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.554570]  ? find_held_lock+0x36/0x1c0
[  646.558620]  ? find_held_lock+0x36/0x1c0
[  646.562679]  ? check_same_owner+0x340/0x340
[  646.566981]  ? rcu_is_watching+0x8c/0x150
[  646.571112]  ? rcu_note_context_switch+0x730/0x730
[  646.576035]  ? security_prepare_creds+0x94/0xc0
[  646.580699]  __should_failslab+0x124/0x180
[  646.584927]  should_failslab+0x9/0x14
[  646.588719]  kmem_cache_alloc+0x2af/0x760
[  646.592852]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  646.597868]  __delayacct_tsk_init+0x20/0x80
[  646.602178]  copy_process.part.39+0x2ba8/0x7250
[  646.606840]  ? __lock_acquire+0x7fc/0x5020
[  646.611060]  ? __lock_acquire+0x7fc/0x5020
[  646.615277]  ? __lock_acquire+0x7fc/0x5020
[  646.619499]  ? __cleanup_sighand+0x70/0x70
[  646.623723]  ? debug_check_no_locks_freed+0x310/0x310
[  646.628904]  ? debug_check_no_locks_freed+0x310/0x310
[  646.634076]  ? print_usage_bug+0xc0/0xc0
[  646.638135]  ? print_usage_bug+0xc0/0xc0
[  646.642185]  ? d_splice_alias+0x7c9/0x11f0
[  646.646411]  ? lock_downgrade+0x8f0/0x8f0
[  646.650552]  ? d_instantiate_anon+0x30/0x30
[  646.654859]  ? __lock_acquire+0x7fc/0x5020
[  646.659090]  ? print_usage_bug+0xc0/0xc0
[  646.663136]  ? debug_check_no_locks_freed+0x310/0x310
[  646.668333]  ? debug_check_no_locks_freed+0x310/0x310
[  646.673531]  ? __lock_acquire+0x7fc/0x5020
[  646.677750]  ? print_usage_bug+0xc0/0xc0
[  646.681806]  ? lock_downgrade+0x8f0/0x8f0
[  646.685950]  ? debug_check_no_locks_freed+0x310/0x310
[  646.691136]  ? print_usage_bug+0xc0/0xc0
[  646.695180]  ? graph_lock+0x170/0x170
[  646.698963]  ? do_raw_spin_lock+0xc1/0x200
[  646.703181]  ? graph_lock+0x170/0x170
[  646.706966]  ? graph_lock+0x170/0x170
[  646.710765]  ? find_held_lock+0x36/0x1c0
[  646.714812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.720335]  ? _parse_integer+0x13b/0x190
[  646.724478]  ? graph_lock+0x170/0x170
[  646.728261]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  646.733780]  ? _kstrtoull+0x188/0x250
[  646.737565]  ? _parse_integer+0x190/0x190
[  646.741697]  ? graph_lock+0x170/0x170
[  646.745481]  ? lock_release+0xa30/0xa30
[  646.749439]  ? find_held_lock+0x36/0x1c0
[  646.753486]  ? lock_downgrade+0x8f0/0x8f0
[  646.757621]  ? kasan_check_read+0x11/0x20
[  646.761751]  ? rcu_is_watching+0x8c/0x150
[  646.765901]  ? pid_task+0x115/0x200
[  646.769517]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  646.773909]  ? save_stack+0xa9/0xd0
[  646.777519]  ? graph_lock+0x170/0x170
[  646.781306]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  646.786834]  ? proc_fail_nth_write+0x9e/0x210
[  646.791308]  ? proc_cwd_link+0x1d0/0x1d0
[  646.795354]  ? kasan_check_read+0x11/0x20
[  646.799483]  ? find_held_lock+0x36/0x1c0
[  646.803529]  _do_fork+0x291/0x12a0
[  646.807055]  ? fork_idle+0x1a0/0x1a0
[  646.810751]  ? __lock_is_held+0xb5/0x140
[  646.814813]  ? __sb_end_write+0xac/0xe0
[  646.818769]  ? vfs_write+0x2a8/0x560
[  646.822468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.827984]  ? ksys_write+0x1ae/0x260
[  646.831768]  ? __ia32_sys_read+0xb0/0xb0
[  646.835815]  ? syscall_slow_exit_work+0x500/0x500
[  646.840645]  __x64_sys_clone+0xbf/0x150
[  646.844617]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  646.849618]  do_syscall_64+0x1b9/0x820
[  646.853487]  ? syscall_return_slowpath+0x5e0/0x5e0
[  646.858399]  ? syscall_return_slowpath+0x31d/0x5e0
[  646.863315]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  646.868682]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  646.873528]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  646.878716] RIP: 0033:0x441519
[  646.881902] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  646.901129] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  646.908826] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  646.916188] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  646.923439] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  646.930702] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  646.937965] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  646.950791] FAULT_INJECTION: forcing a failure.
[  646.950791] name failslab, interval 1, probability 0, space 0, times 0
[  646.962236] CPU: 0 PID: 4600 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  646.969352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  646.978691] Call Trace:
[  646.981269]  dump_stack+0x1c9/0x2b4
[  646.984879]  ? dump_stack_print_info.cold.2+0x52/0x52
[  646.990062]  ? save_stack+0x43/0xd0
[  646.993667]  ? kasan_kmalloc+0xc4/0xe0
[  646.997537]  ? kasan_slab_alloc+0x12/0x20
[  647.001675]  ? kmem_cache_alloc+0x12e/0x760
[  647.005993]  ? copy_creds+0x7b/0x470
[  647.009701]  should_fail.cold.4+0xa/0x1a
[  647.013760]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  647.018851]  ? find_held_lock+0x36/0x1c0
[  647.022904]  ? find_held_lock+0x36/0x1c0
[  647.026959]  ? check_same_owner+0x340/0x340
[  647.031264]  ? rcu_is_watching+0x8c/0x150
[  647.035407]  ? rcu_note_context_switch+0x730/0x730
[  647.040329]  ? security_prepare_creds+0x94/0xc0
[  647.044995]  __should_failslab+0x124/0x180
[  647.049222]  should_failslab+0x9/0x14
[  647.053007]  kmem_cache_alloc+0x2af/0x760
[  647.057159]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  647.062161]  __delayacct_tsk_init+0x20/0x80
[  647.066466]  copy_process.part.39+0x2ba8/0x7250
[  647.071119]  ? __lock_acquire+0x7fc/0x5020
[  647.075350]  ? __lock_acquire+0x7fc/0x5020
[  647.079575]  ? __lock_acquire+0x7fc/0x5020
[  647.083799]  ? __cleanup_sighand+0x70/0x70
[  647.088024]  ? debug_check_no_locks_freed+0x310/0x310
[  647.093201]  ? debug_check_no_locks_freed+0x310/0x310
[  647.098372]  ? print_usage_bug+0xc0/0xc0
[  647.102417]  ? print_usage_bug+0xc0/0xc0
[  647.106461]  ? d_splice_alias+0x7c9/0x11f0
[  647.110687]  ? lock_downgrade+0x8f0/0x8f0
[  647.114818]  ? d_instantiate_anon+0x30/0x30
[  647.119135]  ? __lock_acquire+0x7fc/0x5020
[  647.123354]  ? print_usage_bug+0xc0/0xc0
[  647.127400]  ? debug_check_no_locks_freed+0x310/0x310
[  647.132588]  ? debug_check_no_locks_freed+0x310/0x310
[  647.137764]  ? __lock_acquire+0x7fc/0x5020
[  647.141992]  ? print_usage_bug+0xc0/0xc0
[  647.146039]  ? lock_downgrade+0x8f0/0x8f0
[  647.150173]  ? debug_check_no_locks_freed+0x310/0x310
[  647.155344]  ? print_usage_bug+0xc0/0xc0
[  647.159383]  ? graph_lock+0x170/0x170
[  647.163162]  ? do_raw_spin_lock+0xc1/0x200
[  647.167380]  ? graph_lock+0x170/0x170
[  647.171163]  ? graph_lock+0x170/0x170
[  647.174957]  ? find_held_lock+0x36/0x1c0
[  647.179000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.184524]  ? _parse_integer+0x13b/0x190
[  647.188651]  ? graph_lock+0x170/0x170
[  647.192437]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  647.197954]  ? _kstrtoull+0x188/0x250
[  647.201745]  ? _parse_integer+0x190/0x190
[  647.205874]  ? graph_lock+0x170/0x170
[  647.209656]  ? lock_release+0xa30/0xa30
[  647.213631]  ? find_held_lock+0x36/0x1c0
[  647.217678]  ? lock_downgrade+0x8f0/0x8f0
[  647.221824]  ? kasan_check_read+0x11/0x20
[  647.225952]  ? rcu_is_watching+0x8c/0x150
[  647.230091]  ? pid_task+0x115/0x200
[  647.233698]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  647.238087]  ? save_stack+0xa9/0xd0
[  647.241703]  ? graph_lock+0x170/0x170
[  647.245489]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  647.251020]  ? proc_fail_nth_write+0x9e/0x210
[  647.255500]  ? proc_cwd_link+0x1d0/0x1d0
[  647.259544]  ? kasan_check_read+0x11/0x20
[  647.263674]  ? find_held_lock+0x36/0x1c0
[  647.267730]  _do_fork+0x291/0x12a0
[  647.271260]  ? fork_idle+0x1a0/0x1a0
[  647.274958]  ? __lock_is_held+0xb5/0x140
[  647.279015]  ? __sb_end_write+0xac/0xe0
[  647.282983]  ? vfs_write+0x2a8/0x560
[  647.286699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.292222]  ? ksys_write+0x1ae/0x260
[  647.296006]  ? __ia32_sys_read+0xb0/0xb0
[  647.300064]  ? syscall_slow_exit_work+0x500/0x500
[  647.304904]  __x64_sys_clone+0xbf/0x150
[  647.308875]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  647.313887]  do_syscall_64+0x1b9/0x820
[  647.317768]  ? syscall_return_slowpath+0x5e0/0x5e0
[  647.322688]  ? syscall_return_slowpath+0x31d/0x5e0
[  647.327603]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  647.332960]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  647.337795]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  647.342971] RIP: 0033:0x441519
[  647.346139] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  647.365319] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  647.373024] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  647.380305] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  647.387557] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  647.394815] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  647.402077] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  647.414647] FAULT_INJECTION: forcing a failure.
[  647.414647] name failslab, interval 1, probability 0, space 0, times 0
[  647.425893] CPU: 0 PID: 4602 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  647.432976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  647.442311] Call Trace:
[  647.444889]  dump_stack+0x1c9/0x2b4
[  647.448497]  ? dump_stack_print_info.cold.2+0x52/0x52
[  647.453670]  ? save_stack+0x43/0xd0
[  647.457302]  ? kasan_kmalloc+0xc4/0xe0
[  647.461169]  ? kasan_slab_alloc+0x12/0x20
[  647.465304]  ? kmem_cache_alloc+0x12e/0x760
[  647.469610]  ? copy_creds+0x7b/0x470
[  647.473318]  should_fail.cold.4+0xa/0x1a
[  647.477365]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  647.482459]  ? find_held_lock+0x36/0x1c0
[  647.486517]  ? find_held_lock+0x36/0x1c0
[  647.490578]  ? check_same_owner+0x340/0x340
[  647.494884]  ? rcu_is_watching+0x8c/0x150
[  647.499040]  ? rcu_note_context_switch+0x730/0x730
[  647.503957]  ? security_prepare_creds+0x94/0xc0
[  647.508612]  __should_failslab+0x124/0x180
[  647.512831]  should_failslab+0x9/0x14
[  647.516623]  kmem_cache_alloc+0x2af/0x760
[  647.520753]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  647.525754]  __delayacct_tsk_init+0x20/0x80
[  647.530058]  copy_process.part.39+0x2ba8/0x7250
[  647.534708]  ? __lock_acquire+0x7fc/0x5020
[  647.538926]  ? __lock_acquire+0x7fc/0x5020
[  647.543141]  ? __lock_acquire+0x7fc/0x5020
[  647.547361]  ? __cleanup_sighand+0x70/0x70
[  647.551578]  ? debug_check_no_locks_freed+0x310/0x310
[  647.556757]  ? debug_check_no_locks_freed+0x310/0x310
[  647.561936]  ? print_usage_bug+0xc0/0xc0
[  647.565981]  ? print_usage_bug+0xc0/0xc0
[  647.570032]  ? d_splice_alias+0x7c9/0x11f0
[  647.574256]  ? lock_downgrade+0x8f0/0x8f0
[  647.578384]  ? d_instantiate_anon+0x30/0x30
[  647.582689]  ? __lock_acquire+0x7fc/0x5020
[  647.586909]  ? print_usage_bug+0xc0/0xc0
[  647.590955]  ? debug_check_no_locks_freed+0x310/0x310
[  647.596141]  ? debug_check_no_locks_freed+0x310/0x310
[  647.601331]  ? __lock_acquire+0x7fc/0x5020
[  647.605544]  ? print_usage_bug+0xc0/0xc0
[  647.609587]  ? lock_downgrade+0x8f0/0x8f0
[  647.613719]  ? debug_check_no_locks_freed+0x310/0x310
[  647.618903]  ? print_usage_bug+0xc0/0xc0
[  647.622954]  ? graph_lock+0x170/0x170
[  647.626737]  ? do_raw_spin_lock+0xc1/0x200
[  647.630957]  ? graph_lock+0x170/0x170
[  647.634761]  ? graph_lock+0x170/0x170
[  647.638551]  ? find_held_lock+0x36/0x1c0
[  647.642596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.648128]  ? _parse_integer+0x13b/0x190
[  647.652259]  ? graph_lock+0x170/0x170
[  647.656055]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  647.661577]  ? _kstrtoull+0x188/0x250
[  647.665372]  ? _parse_integer+0x190/0x190
[  647.669505]  ? graph_lock+0x170/0x170
[  647.673289]  ? lock_release+0xa30/0xa30
[  647.677256]  ? find_held_lock+0x36/0x1c0
[  647.681308]  ? lock_downgrade+0x8f0/0x8f0
[  647.685441]  ? kasan_check_read+0x11/0x20
[  647.689569]  ? rcu_is_watching+0x8c/0x150
[  647.693699]  ? pid_task+0x115/0x200
[  647.697305]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  647.701699]  ? save_stack+0xa9/0xd0
[  647.705311]  ? graph_lock+0x170/0x170
[  647.709109]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  647.714629]  ? proc_fail_nth_write+0x9e/0x210
[  647.719116]  ? proc_cwd_link+0x1d0/0x1d0
[  647.723169]  ? kasan_check_read+0x11/0x20
[  647.727303]  ? find_held_lock+0x36/0x1c0
[  647.731351]  _do_fork+0x291/0x12a0
[  647.734878]  ? fork_idle+0x1a0/0x1a0
[  647.738583]  ? __lock_is_held+0xb5/0x140
[  647.742644]  ? __sb_end_write+0xac/0xe0
[  647.746703]  ? vfs_write+0x2a8/0x560
[  647.750401]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.755927]  ? ksys_write+0x1ae/0x260
[  647.759719]  ? __ia32_sys_read+0xb0/0xb0
[  647.763767]  ? syscall_slow_exit_work+0x500/0x500
[  647.768593]  __x64_sys_clone+0xbf/0x150
[  647.772549]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  647.777547]  do_syscall_64+0x1b9/0x820
[  647.781416]  ? syscall_return_slowpath+0x5e0/0x5e0
[  647.786335]  ? syscall_return_slowpath+0x31d/0x5e0
[  647.791251]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  647.796608]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  647.801444]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  647.806627] RIP: 0033:0x441519
[  647.809797] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  647.829003] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  647.836703] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  647.843953] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  647.851202] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  647.858452] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  647.865699] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  647.879897] FAULT_INJECTION: forcing a failure.
[  647.879897] name failslab, interval 1, probability 0, space 0, times 0
[  647.891174] CPU: 1 PID: 4604 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  647.898258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  647.907589] Call Trace:
[  647.910179]  dump_stack+0x1c9/0x2b4
[  647.913805]  ? dump_stack_print_info.cold.2+0x52/0x52
[  647.918979]  ? save_stack+0x43/0xd0
[  647.922601]  ? kasan_kmalloc+0xc4/0xe0
[  647.926478]  ? kasan_slab_alloc+0x12/0x20
[  647.930628]  ? kmem_cache_alloc+0x12e/0x760
[  647.934944]  ? copy_creds+0x7b/0x470
[  647.938645]  should_fail.cold.4+0xa/0x1a
[  647.942691]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  647.947779]  ? find_held_lock+0x36/0x1c0
[  647.951827]  ? find_held_lock+0x36/0x1c0
[  647.955883]  ? check_same_owner+0x340/0x340
[  647.960201]  ? rcu_is_watching+0x8c/0x150
[  647.964331]  ? rcu_note_context_switch+0x730/0x730
[  647.969244]  ? security_prepare_creds+0x94/0xc0
[  647.973897]  __should_failslab+0x124/0x180
[  647.978114]  should_failslab+0x9/0x14
[  647.981901]  kmem_cache_alloc+0x2af/0x760
[  647.986039]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  647.991053]  __delayacct_tsk_init+0x20/0x80
[  647.995369]  copy_process.part.39+0x2ba8/0x7250
[  648.000031]  ? __lock_acquire+0x7fc/0x5020
[  648.004257]  ? __lock_acquire+0x7fc/0x5020
[  648.008474]  ? __lock_acquire+0x7fc/0x5020
[  648.012699]  ? __cleanup_sighand+0x70/0x70
[  648.016935]  ? debug_check_no_locks_freed+0x310/0x310
[  648.022106]  ? debug_check_no_locks_freed+0x310/0x310
[  648.027288]  ? print_usage_bug+0xc0/0xc0
[  648.031342]  ? print_usage_bug+0xc0/0xc0
[  648.035391]  ? d_splice_alias+0x7c9/0x11f0
[  648.039617]  ? lock_downgrade+0x8f0/0x8f0
[  648.043752]  ? d_instantiate_anon+0x30/0x30
[  648.048065]  ? __lock_acquire+0x7fc/0x5020
[  648.052287]  ? print_usage_bug+0xc0/0xc0
[  648.056334]  ? debug_check_no_locks_freed+0x310/0x310
[  648.061508]  ? debug_check_no_locks_freed+0x310/0x310
[  648.066694]  ? __lock_acquire+0x7fc/0x5020
[  648.070908]  ? print_usage_bug+0xc0/0xc0
[  648.074961]  ? lock_downgrade+0x8f0/0x8f0
[  648.079113]  ? debug_check_no_locks_freed+0x310/0x310
[  648.084290]  ? print_usage_bug+0xc0/0xc0
[  648.088344]  ? graph_lock+0x170/0x170
[  648.092140]  ? do_raw_spin_lock+0xc1/0x200
[  648.096360]  ? graph_lock+0x170/0x170
[  648.100145]  ? graph_lock+0x170/0x170
[  648.103933]  ? find_held_lock+0x36/0x1c0
[  648.107978]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.113499]  ? _parse_integer+0x13b/0x190
[  648.117633]  ? graph_lock+0x170/0x170
[  648.121431]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  648.126961]  ? _kstrtoull+0x188/0x250
[  648.130754]  ? _parse_integer+0x190/0x190
[  648.134894]  ? graph_lock+0x170/0x170
[  648.138681]  ? lock_release+0xa30/0xa30
[  648.142641]  ? find_held_lock+0x36/0x1c0
[  648.146701]  ? lock_downgrade+0x8f0/0x8f0
[  648.150833]  ? kasan_check_read+0x11/0x20
[  648.154968]  ? rcu_is_watching+0x8c/0x150
[  648.159118]  ? pid_task+0x115/0x200
[  648.162744]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  648.167138]  ? save_stack+0xa9/0xd0
[  648.170749]  ? graph_lock+0x170/0x170
[  648.174546]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  648.180077]  ? proc_fail_nth_write+0x9e/0x210
[  648.184569]  ? proc_cwd_link+0x1d0/0x1d0
[  648.188613]  ? kasan_check_read+0x11/0x20
[  648.192753]  ? find_held_lock+0x36/0x1c0
[  648.196799]  _do_fork+0x291/0x12a0
[  648.200326]  ? fork_idle+0x1a0/0x1a0
[  648.204034]  ? __lock_is_held+0xb5/0x140
[  648.208099]  ? __sb_end_write+0xac/0xe0
[  648.212064]  ? vfs_write+0x2a8/0x560
[  648.215765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.221284]  ? ksys_write+0x1ae/0x260
[  648.225065]  ? __ia32_sys_read+0xb0/0xb0
[  648.229112]  ? syscall_slow_exit_work+0x500/0x500
[  648.233953]  __x64_sys_clone+0xbf/0x150
[  648.237912]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  648.242922]  do_syscall_64+0x1b9/0x820
[  648.246794]  ? syscall_return_slowpath+0x5e0/0x5e0
[  648.251718]  ? syscall_return_slowpath+0x31d/0x5e0
[  648.256669]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  648.262046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  648.266878]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  648.272055] RIP: 0033:0x441519
executing program
[  648.275232] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  648.294432] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  648.302125] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  648.309387] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  648.316647] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  648.323897] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  648.331157] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  648.342994] FAULT_INJECTION: forcing a failure.
[  648.342994] name failslab, interval 1, probability 0, space 0, times 0
[  648.354320] CPU: 1 PID: 4606 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  648.361405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  648.370748] Call Trace:
[  648.373333]  dump_stack+0x1c9/0x2b4
[  648.376943]  ? dump_stack_print_info.cold.2+0x52/0x52
[  648.382144]  ? save_stack+0x43/0xd0
[  648.385754]  ? kasan_kmalloc+0xc4/0xe0
[  648.389624]  ? kasan_slab_alloc+0x12/0x20
[  648.393751]  ? kmem_cache_alloc+0x12e/0x760
[  648.398071]  ? copy_creds+0x7b/0x470
[  648.401792]  should_fail.cold.4+0xa/0x1a
[  648.405845]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  648.410935]  ? find_held_lock+0x36/0x1c0
[  648.414985]  ? find_held_lock+0x36/0x1c0
[  648.419052]  ? check_same_owner+0x340/0x340
[  648.423370]  ? rcu_is_watching+0x8c/0x150
[  648.427515]  ? rcu_note_context_switch+0x730/0x730
[  648.432442]  ? security_prepare_creds+0x94/0xc0
[  648.437109]  __should_failslab+0x124/0x180
[  648.441338]  should_failslab+0x9/0x14
[  648.445120]  kmem_cache_alloc+0x2af/0x760
[  648.449253]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  648.454259]  __delayacct_tsk_init+0x20/0x80
[  648.458566]  copy_process.part.39+0x2ba8/0x7250
[  648.463217]  ? __lock_acquire+0x7fc/0x5020
[  648.467435]  ? __lock_acquire+0x7fc/0x5020
[  648.471652]  ? __lock_acquire+0x7fc/0x5020
[  648.475876]  ? __cleanup_sighand+0x70/0x70
[  648.480094]  ? debug_check_no_locks_freed+0x310/0x310
[  648.485269]  ? debug_check_no_locks_freed+0x310/0x310
[  648.490457]  ? print_usage_bug+0xc0/0xc0
[  648.494513]  ? print_usage_bug+0xc0/0xc0
[  648.498557]  ? d_splice_alias+0x7c9/0x11f0
[  648.502774]  ? lock_downgrade+0x8f0/0x8f0
[  648.506905]  ? d_instantiate_anon+0x30/0x30
[  648.511226]  ? __lock_acquire+0x7fc/0x5020
[  648.515446]  ? print_usage_bug+0xc0/0xc0
[  648.519495]  ? debug_check_no_locks_freed+0x310/0x310
[  648.524670]  ? debug_check_no_locks_freed+0x310/0x310
[  648.529842]  ? __lock_acquire+0x7fc/0x5020
[  648.534065]  ? print_usage_bug+0xc0/0xc0
[  648.538111]  ? lock_downgrade+0x8f0/0x8f0
[  648.542251]  ? debug_check_no_locks_freed+0x310/0x310
[  648.547427]  ? print_usage_bug+0xc0/0xc0
[  648.551471]  ? graph_lock+0x170/0x170
[  648.555257]  ? do_raw_spin_lock+0xc1/0x200
[  648.559477]  ? graph_lock+0x170/0x170
[  648.563261]  ? graph_lock+0x170/0x170
[  648.567051]  ? find_held_lock+0x36/0x1c0
[  648.571111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.576644]  ? _parse_integer+0x13b/0x190
[  648.580775]  ? graph_lock+0x170/0x170
[  648.584558]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  648.590105]  ? _kstrtoull+0x188/0x250
[  648.593898]  ? _parse_integer+0x190/0x190
[  648.598037]  ? graph_lock+0x170/0x170
[  648.601828]  ? lock_release+0xa30/0xa30
[  648.605798]  ? find_held_lock+0x36/0x1c0
[  648.609845]  ? lock_downgrade+0x8f0/0x8f0
[  648.613976]  ? kasan_check_read+0x11/0x20
[  648.618108]  ? rcu_is_watching+0x8c/0x150
[  648.622237]  ? pid_task+0x115/0x200
[  648.625845]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  648.630238]  ? save_stack+0xa9/0xd0
[  648.633861]  ? graph_lock+0x170/0x170
[  648.637648]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  648.643184]  ? proc_fail_nth_write+0x9e/0x210
[  648.647677]  ? proc_cwd_link+0x1d0/0x1d0
[  648.651732]  ? kasan_check_read+0x11/0x20
[  648.655866]  ? find_held_lock+0x36/0x1c0
[  648.659922]  _do_fork+0x291/0x12a0
[  648.663448]  ? fork_idle+0x1a0/0x1a0
[  648.667160]  ? __lock_is_held+0xb5/0x140
[  648.671224]  ? __sb_end_write+0xac/0xe0
[  648.675199]  ? vfs_write+0x2a8/0x560
[  648.678896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.684412]  ? ksys_write+0x1ae/0x260
[  648.688206]  ? __ia32_sys_read+0xb0/0xb0
[  648.692266]  ? syscall_slow_exit_work+0x500/0x500
[  648.697093]  __x64_sys_clone+0xbf/0x150
[  648.701059]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  648.706069]  do_syscall_64+0x1b9/0x820
[  648.709950]  ? syscall_return_slowpath+0x5e0/0x5e0
[  648.714862]  ? syscall_return_slowpath+0x31d/0x5e0
[  648.719775]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  648.725124]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  648.729960]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  648.735143] RIP: 0033:0x441519
[  648.738311] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  648.757496] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  648.765193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  648.772458] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  648.779712] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  648.786980] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  648.794244] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  648.806193] FAULT_INJECTION: forcing a failure.
[  648.806193] name failslab, interval 1, probability 0, space 0, times 0
[  648.817429] CPU: 1 PID: 4608 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  648.824512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  648.833845] Call Trace:
[  648.836435]  dump_stack+0x1c9/0x2b4
[  648.840051]  ? dump_stack_print_info.cold.2+0x52/0x52
[  648.845225]  ? save_stack+0x43/0xd0
[  648.848844]  ? kasan_kmalloc+0xc4/0xe0
[  648.852713]  ? kasan_slab_alloc+0x12/0x20
[  648.856843]  ? kmem_cache_alloc+0x12e/0x760
[  648.861149]  ? copy_creds+0x7b/0x470
[  648.864850]  should_fail.cold.4+0xa/0x1a
[  648.868893]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  648.873984]  ? find_held_lock+0x36/0x1c0
[  648.878054]  ? find_held_lock+0x36/0x1c0
[  648.882113]  ? check_same_owner+0x340/0x340
[  648.886415]  ? rcu_is_watching+0x8c/0x150
[  648.890545]  ? rcu_note_context_switch+0x730/0x730
[  648.895459]  ? security_prepare_creds+0x94/0xc0
[  648.900115]  __should_failslab+0x124/0x180
[  648.904348]  should_failslab+0x9/0x14
[  648.908129]  kmem_cache_alloc+0x2af/0x760
[  648.912270]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  648.917273]  __delayacct_tsk_init+0x20/0x80
[  648.921578]  copy_process.part.39+0x2ba8/0x7250
[  648.926231]  ? __lock_acquire+0x7fc/0x5020
[  648.930452]  ? __lock_acquire+0x7fc/0x5020
[  648.934669]  ? __lock_acquire+0x7fc/0x5020
[  648.938908]  ? __cleanup_sighand+0x70/0x70
[  648.943127]  ? debug_check_no_locks_freed+0x310/0x310
[  648.948301]  ? debug_check_no_locks_freed+0x310/0x310
[  648.953473]  ? print_usage_bug+0xc0/0xc0
[  648.957519]  ? print_usage_bug+0xc0/0xc0
[  648.961563]  ? d_splice_alias+0x7c9/0x11f0
[  648.965789]  ? lock_downgrade+0x8f0/0x8f0
[  648.969924]  ? d_instantiate_anon+0x30/0x30
[  648.974229]  ? __lock_acquire+0x7fc/0x5020
[  648.978449]  ? print_usage_bug+0xc0/0xc0
[  648.982495]  ? debug_check_no_locks_freed+0x310/0x310
[  648.987687]  ? debug_check_no_locks_freed+0x310/0x310
[  648.992860]  ? __lock_acquire+0x7fc/0x5020
[  648.997075]  ? print_usage_bug+0xc0/0xc0
[  649.001129]  ? lock_downgrade+0x8f0/0x8f0
[  649.005264]  ? debug_check_no_locks_freed+0x310/0x310
[  649.010453]  ? print_usage_bug+0xc0/0xc0
[  649.014497]  ? graph_lock+0x170/0x170
[  649.018280]  ? do_raw_spin_lock+0xc1/0x200
[  649.022498]  ? graph_lock+0x170/0x170
[  649.026282]  ? graph_lock+0x170/0x170
[  649.030074]  ? find_held_lock+0x36/0x1c0
[  649.034121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.039653]  ? _parse_integer+0x13b/0x190
[  649.043787]  ? graph_lock+0x170/0x170
[  649.047572]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  649.053090]  ? _kstrtoull+0x188/0x250
[  649.056873]  ? _parse_integer+0x190/0x190
[  649.061008]  ? graph_lock+0x170/0x170
[  649.064797]  ? lock_release+0xa30/0xa30
[  649.068754]  ? find_held_lock+0x36/0x1c0
[  649.072810]  ? lock_downgrade+0x8f0/0x8f0
[  649.076956]  ? kasan_check_read+0x11/0x20
[  649.081094]  ? rcu_is_watching+0x8c/0x150
[  649.085229]  ? pid_task+0x115/0x200
[  649.088852]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  649.093247]  ? save_stack+0xa9/0xd0
[  649.096869]  ? graph_lock+0x170/0x170
[  649.100655]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  649.106180]  ? proc_fail_nth_write+0x9e/0x210
[  649.110662]  ? proc_cwd_link+0x1d0/0x1d0
[  649.114709]  ? kasan_check_read+0x11/0x20
[  649.118845]  ? find_held_lock+0x36/0x1c0
[  649.122892]  _do_fork+0x291/0x12a0
[  649.126429]  ? fork_idle+0x1a0/0x1a0
[  649.130139]  ? __lock_is_held+0xb5/0x140
[  649.134188]  ? __sb_end_write+0xac/0xe0
[  649.138143]  ? vfs_write+0x2a8/0x560
[  649.141841]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.147358]  ? ksys_write+0x1ae/0x260
[  649.151165]  ? __ia32_sys_read+0xb0/0xb0
[  649.155221]  ? syscall_slow_exit_work+0x500/0x500
[  649.160057]  __x64_sys_clone+0xbf/0x150
[  649.164021]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  649.169050]  do_syscall_64+0x1b9/0x820
[  649.172927]  ? syscall_return_slowpath+0x5e0/0x5e0
[  649.177842]  ? syscall_return_slowpath+0x31d/0x5e0
[  649.182774]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  649.188120]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  649.192948]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  649.198120] RIP: 0033:0x441519
[  649.202122] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  649.221309] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  649.229027] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  649.236299] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  649.243553] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  649.250818] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  649.258074] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  649.270005] FAULT_INJECTION: forcing a failure.
[  649.270005] name failslab, interval 1, probability 0, space 0, times 0
[  649.281280] CPU: 1 PID: 4610 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  649.288385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  649.297741] Call Trace:
[  649.300321]  dump_stack+0x1c9/0x2b4
[  649.303936]  ? dump_stack_print_info.cold.2+0x52/0x52
[  649.309110]  ? save_stack+0x43/0xd0
[  649.312721]  ? kasan_kmalloc+0xc4/0xe0
[  649.316606]  ? kasan_slab_alloc+0x12/0x20
[  649.320736]  ? kmem_cache_alloc+0x12e/0x760
[  649.325050]  ? copy_creds+0x7b/0x470
[  649.328768]  should_fail.cold.4+0xa/0x1a
[  649.332815]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  649.337908]  ? find_held_lock+0x36/0x1c0
[  649.341970]  ? find_held_lock+0x36/0x1c0
[  649.346037]  ? check_same_owner+0x340/0x340
[  649.350367]  ? rcu_is_watching+0x8c/0x150
[  649.354515]  ? rcu_note_context_switch+0x730/0x730
[  649.359434]  ? security_prepare_creds+0x94/0xc0
[  649.364103]  __should_failslab+0x124/0x180
[  649.368325]  should_failslab+0x9/0x14
[  649.372106]  kmem_cache_alloc+0x2af/0x760
[  649.376237]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  649.381253]  __delayacct_tsk_init+0x20/0x80
[  649.385559]  copy_process.part.39+0x2ba8/0x7250
[  649.390215]  ? __lock_acquire+0x7fc/0x5020
[  649.394450]  ? __lock_acquire+0x7fc/0x5020
[  649.398670]  ? __lock_acquire+0x7fc/0x5020
[  649.402908]  ? __cleanup_sighand+0x70/0x70
[  649.407136]  ? debug_check_no_locks_freed+0x310/0x310
[  649.412321]  ? debug_check_no_locks_freed+0x310/0x310
[  649.417503]  ? print_usage_bug+0xc0/0xc0
[  649.421557]  ? print_usage_bug+0xc0/0xc0
[  649.425614]  ? d_splice_alias+0x7c9/0x11f0
[  649.429835]  ? lock_downgrade+0x8f0/0x8f0
[  649.433975]  ? d_instantiate_anon+0x30/0x30
[  649.438294]  ? __lock_acquire+0x7fc/0x5020
[  649.442523]  ? print_usage_bug+0xc0/0xc0
[  649.446570]  ? debug_check_no_locks_freed+0x310/0x310
[  649.451745]  ? debug_check_no_locks_freed+0x310/0x310
[  649.456931]  ? __lock_acquire+0x7fc/0x5020
[  649.461147]  ? print_usage_bug+0xc0/0xc0
[  649.465216]  ? lock_downgrade+0x8f0/0x8f0
[  649.469350]  ? debug_check_no_locks_freed+0x310/0x310
[  649.474523]  ? print_usage_bug+0xc0/0xc0
[  649.478567]  ? graph_lock+0x170/0x170
[  649.482351]  ? do_raw_spin_lock+0xc1/0x200
[  649.486584]  ? graph_lock+0x170/0x170
[  649.490367]  ? graph_lock+0x170/0x170
[  649.494162]  ? find_held_lock+0x36/0x1c0
[  649.498209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.503733]  ? _parse_integer+0x13b/0x190
[  649.507865]  ? graph_lock+0x170/0x170
[  649.511653]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  649.517172]  ? _kstrtoull+0x188/0x250
[  649.520959]  ? _parse_integer+0x190/0x190
[  649.525089]  ? graph_lock+0x170/0x170
[  649.528869]  ? lock_release+0xa30/0xa30
[  649.532840]  ? find_held_lock+0x36/0x1c0
[  649.536889]  ? lock_downgrade+0x8f0/0x8f0
[  649.541032]  ? kasan_check_read+0x11/0x20
[  649.545177]  ? rcu_is_watching+0x8c/0x150
[  649.549306]  ? pid_task+0x115/0x200
[  649.552914]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  649.557307]  ? save_stack+0xa9/0xd0
[  649.560916]  ? graph_lock+0x170/0x170
[  649.564706]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  649.570415]  ? proc_fail_nth_write+0x9e/0x210
[  649.574902]  ? proc_cwd_link+0x1d0/0x1d0
[  649.578978]  ? kasan_check_read+0x11/0x20
[  649.583117]  ? find_held_lock+0x36/0x1c0
[  649.587179]  _do_fork+0x291/0x12a0
[  649.590709]  ? fork_idle+0x1a0/0x1a0
[  649.594411]  ? __lock_is_held+0xb5/0x140
[  649.598464]  ? __sb_end_write+0xac/0xe0
[  649.602424]  ? vfs_write+0x2a8/0x560
[  649.606131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.611652]  ? ksys_write+0x1ae/0x260
[  649.615436]  ? __ia32_sys_read+0xb0/0xb0
[  649.619486]  ? syscall_slow_exit_work+0x500/0x500
[  649.624314]  __x64_sys_clone+0xbf/0x150
[  649.628280]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  649.633289]  do_syscall_64+0x1b9/0x820
[  649.637174]  ? syscall_return_slowpath+0x5e0/0x5e0
[  649.642095]  ? syscall_return_slowpath+0x31d/0x5e0
[  649.647040]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  649.652406]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  649.657234]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  649.662404] RIP: 0033:0x441519
[  649.665571] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  649.684752] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  649.692445] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  649.699695] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  649.706957] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  649.714217] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  649.721478] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  649.733426] FAULT_INJECTION: forcing a failure.
[  649.733426] name failslab, interval 1, probability 0, space 0, times 0
[  649.744666] CPU: 1 PID: 4612 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  649.751746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  649.761083] Call Trace:
[  649.763666]  dump_stack+0x1c9/0x2b4
[  649.767278]  ? dump_stack_print_info.cold.2+0x52/0x52
[  649.772452]  ? save_stack+0x43/0xd0
[  649.776059]  ? kasan_kmalloc+0xc4/0xe0
[  649.779937]  ? kasan_slab_alloc+0x12/0x20
[  649.784066]  ? kmem_cache_alloc+0x12e/0x760
[  649.788367]  ? copy_creds+0x7b/0x470
[  649.792079]  should_fail.cold.4+0xa/0x1a
[  649.796133]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  649.801221]  ? find_held_lock+0x36/0x1c0
[  649.805270]  ? find_held_lock+0x36/0x1c0
[  649.809322]  ? check_same_owner+0x340/0x340
[  649.813625]  ? rcu_is_watching+0x8c/0x150
[  649.817754]  ? rcu_note_context_switch+0x730/0x730
[  649.822667]  ? security_prepare_creds+0x94/0xc0
[  649.827323]  __should_failslab+0x124/0x180
[  649.831544]  should_failslab+0x9/0x14
[  649.835326]  kmem_cache_alloc+0x2af/0x760
[  649.839469]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  649.844485]  __delayacct_tsk_init+0x20/0x80
[  649.848790]  copy_process.part.39+0x2ba8/0x7250
[  649.853444]  ? __lock_acquire+0x7fc/0x5020
[  649.857677]  ? __lock_acquire+0x7fc/0x5020
[  649.861895]  ? __lock_acquire+0x7fc/0x5020
[  649.866119]  ? __cleanup_sighand+0x70/0x70
[  649.870345]  ? debug_check_no_locks_freed+0x310/0x310
[  649.875518]  ? debug_check_no_locks_freed+0x310/0x310
[  649.880690]  ? print_usage_bug+0xc0/0xc0
[  649.884736]  ? print_usage_bug+0xc0/0xc0
[  649.888780]  ? d_splice_alias+0x7c9/0x11f0
[  649.893003]  ? lock_downgrade+0x8f0/0x8f0
[  649.897156]  ? d_instantiate_anon+0x30/0x30
[  649.901474]  ? __lock_acquire+0x7fc/0x5020
[  649.905704]  ? print_usage_bug+0xc0/0xc0
[  649.909751]  ? debug_check_no_locks_freed+0x310/0x310
[  649.914939]  ? debug_check_no_locks_freed+0x310/0x310
[  649.920129]  ? __lock_acquire+0x7fc/0x5020
[  649.924356]  ? print_usage_bug+0xc0/0xc0
[  649.928411]  ? lock_downgrade+0x8f0/0x8f0
[  649.932560]  ? debug_check_no_locks_freed+0x310/0x310
[  649.937735]  ? print_usage_bug+0xc0/0xc0
[  649.941781]  ? graph_lock+0x170/0x170
[  649.945563]  ? do_raw_spin_lock+0xc1/0x200
[  649.949783]  ? graph_lock+0x170/0x170
[  649.953567]  ? graph_lock+0x170/0x170
[  649.957356]  ? find_held_lock+0x36/0x1c0
[  649.961414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.966951]  ? _parse_integer+0x13b/0x190
[  649.971093]  ? graph_lock+0x170/0x170
[  649.974878]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  649.980397]  ? _kstrtoull+0x188/0x250
[  649.984181]  ? _parse_integer+0x190/0x190
[  649.988320]  ? graph_lock+0x170/0x170
[  649.992112]  ? lock_release+0xa30/0xa30
[  649.996073]  ? find_held_lock+0x36/0x1c0
[  650.000123]  ? lock_downgrade+0x8f0/0x8f0
[  650.004259]  ? kasan_check_read+0x11/0x20
[  650.008389]  ? rcu_is_watching+0x8c/0x150
[  650.012518]  ? pid_task+0x115/0x200
[  650.016145]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  650.020539]  ? save_stack+0xa9/0xd0
[  650.024149]  ? graph_lock+0x170/0x170
[  650.027951]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  650.033470]  ? proc_fail_nth_write+0x9e/0x210
[  650.037948]  ? proc_cwd_link+0x1d0/0x1d0
[  650.041994]  ? kasan_check_read+0x11/0x20
[  650.046140]  ? find_held_lock+0x36/0x1c0
[  650.050196]  _do_fork+0x291/0x12a0
[  650.053720]  ? fork_idle+0x1a0/0x1a0
[  650.057434]  ? __lock_is_held+0xb5/0x140
[  650.061487]  ? __sb_end_write+0xac/0xe0
[  650.065440]  ? vfs_write+0x2a8/0x560
[  650.069139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.074656]  ? ksys_write+0x1ae/0x260
[  650.078438]  ? __ia32_sys_read+0xb0/0xb0
[  650.082489]  ? syscall_slow_exit_work+0x500/0x500
[  650.087326]  __x64_sys_clone+0xbf/0x150
[  650.091290]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  650.096292]  do_syscall_64+0x1b9/0x820
[  650.100164]  ? syscall_return_slowpath+0x5e0/0x5e0
[  650.105080]  ? syscall_return_slowpath+0x31d/0x5e0
[  650.110014]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  650.115371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  650.120200]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  650.125557] RIP: 0033:0x441519
[  650.128729] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  650.147928] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  650.155629] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  650.162885] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  650.170160] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  650.177426] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  650.184676] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  650.197403] FAULT_INJECTION: forcing a failure.
[  650.197403] name failslab, interval 1, probability 0, space 0, times 0
[  650.208630] CPU: 1 PID: 4614 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  650.215721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  650.225055] Call Trace:
[  650.227636]  dump_stack+0x1c9/0x2b4
[  650.231247]  ? dump_stack_print_info.cold.2+0x52/0x52
[  650.236420]  ? save_stack+0x43/0xd0
[  650.240040]  ? kasan_kmalloc+0xc4/0xe0
[  650.243941]  ? kasan_slab_alloc+0x12/0x20
[  650.248075]  ? kmem_cache_alloc+0x12e/0x760
[  650.252382]  ? copy_creds+0x7b/0x470
[  650.256097]  should_fail.cold.4+0xa/0x1a
[  650.260143]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  650.265242]  ? find_held_lock+0x36/0x1c0
[  650.269289]  ? find_held_lock+0x36/0x1c0
[  650.273341]  ? check_same_owner+0x340/0x340
[  650.277644]  ? rcu_is_watching+0x8c/0x150
[  650.281773]  ? rcu_note_context_switch+0x730/0x730
[  650.286700]  ? security_prepare_creds+0x94/0xc0
[  650.291357]  __should_failslab+0x124/0x180
[  650.295582]  should_failslab+0x9/0x14
[  650.299363]  kmem_cache_alloc+0x2af/0x760
[  650.303496]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  650.308501]  __delayacct_tsk_init+0x20/0x80
[  650.312808]  copy_process.part.39+0x2ba8/0x7250
[  650.317461]  ? __lock_acquire+0x7fc/0x5020
[  650.321688]  ? __lock_acquire+0x7fc/0x5020
[  650.325903]  ? __lock_acquire+0x7fc/0x5020
[  650.330126]  ? __cleanup_sighand+0x70/0x70
[  650.334343]  ? debug_check_no_locks_freed+0x310/0x310
[  650.339514]  ? debug_check_no_locks_freed+0x310/0x310
[  650.344697]  ? print_usage_bug+0xc0/0xc0
[  650.348752]  ? print_usage_bug+0xc0/0xc0
[  650.352797]  ? d_splice_alias+0x7c9/0x11f0
[  650.357030]  ? lock_downgrade+0x8f0/0x8f0
[  650.361166]  ? d_instantiate_anon+0x30/0x30
[  650.365480]  ? __lock_acquire+0x7fc/0x5020
[  650.369702]  ? print_usage_bug+0xc0/0xc0
[  650.373748]  ? debug_check_no_locks_freed+0x310/0x310
[  650.378929]  ? debug_check_no_locks_freed+0x310/0x310
[  650.384123]  ? __lock_acquire+0x7fc/0x5020
[  650.388341]  ? print_usage_bug+0xc0/0xc0
[  650.392394]  ? lock_downgrade+0x8f0/0x8f0
[  650.396530]  ? debug_check_no_locks_freed+0x310/0x310
[  650.401718]  ? print_usage_bug+0xc0/0xc0
[  650.405763]  ? graph_lock+0x170/0x170
[  650.409552]  ? do_raw_spin_lock+0xc1/0x200
[  650.413783]  ? graph_lock+0x170/0x170
[  650.417572]  ? graph_lock+0x170/0x170
[  650.421358]  ? find_held_lock+0x36/0x1c0
[  650.425418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.430947]  ? _parse_integer+0x13b/0x190
[  650.435080]  ? graph_lock+0x170/0x170
[  650.438868]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  650.444400]  ? _kstrtoull+0x188/0x250
[  650.448181]  ? _parse_integer+0x190/0x190
[  650.452309]  ? graph_lock+0x170/0x170
[  650.456091]  ? lock_release+0xa30/0xa30
[  650.460060]  ? find_held_lock+0x36/0x1c0
[  650.464114]  ? lock_downgrade+0x8f0/0x8f0
[  650.468248]  ? kasan_check_read+0x11/0x20
[  650.472377]  ? rcu_is_watching+0x8c/0x150
[  650.476515]  ? pid_task+0x115/0x200
[  650.480135]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  650.484528]  ? save_stack+0xa9/0xd0
[  650.488141]  ? graph_lock+0x170/0x170
[  650.491925]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  650.497456]  ? proc_fail_nth_write+0x9e/0x210
[  650.501933]  ? proc_cwd_link+0x1d0/0x1d0
[  650.505986]  ? kasan_check_read+0x11/0x20
[  650.510121]  ? find_held_lock+0x36/0x1c0
[  650.514165]  _do_fork+0x291/0x12a0
[  650.517690]  ? fork_idle+0x1a0/0x1a0
[  650.521390]  ? __lock_is_held+0xb5/0x140
[  650.525449]  ? __sb_end_write+0xac/0xe0
[  650.529407]  ? vfs_write+0x2a8/0x560
[  650.533107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.538635]  ? ksys_write+0x1ae/0x260
[  650.542432]  ? __ia32_sys_read+0xb0/0xb0
[  650.546489]  ? syscall_slow_exit_work+0x500/0x500
[  650.551317]  __x64_sys_clone+0xbf/0x150
[  650.555294]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  650.560305]  do_syscall_64+0x1b9/0x820
[  650.564184]  ? syscall_return_slowpath+0x5e0/0x5e0
[  650.569094]  ? syscall_return_slowpath+0x31d/0x5e0
[  650.574018]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  650.579372]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  650.584198]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  650.589381] RIP: 0033:0x441519
[  650.592559] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  650.611728] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  650.619428] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  650.626679] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  650.633929] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  650.641181] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  650.648441] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  650.661230] FAULT_INJECTION: forcing a failure.
[  650.661230] name failslab, interval 1, probability 0, space 0, times 0
[  650.672468] CPU: 1 PID: 4616 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  650.679553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  650.688888] Call Trace:
[  650.691482]  dump_stack+0x1c9/0x2b4
[  650.695093]  ? dump_stack_print_info.cold.2+0x52/0x52
[  650.700267]  ? save_stack+0x43/0xd0
[  650.703878]  ? kasan_kmalloc+0xc4/0xe0
[  650.707758]  ? kasan_slab_alloc+0x12/0x20
[  650.711888]  ? kmem_cache_alloc+0x12e/0x760
[  650.716197]  ? copy_creds+0x7b/0x470
[  650.719909]  should_fail.cold.4+0xa/0x1a
[  650.723960]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  650.729061]  ? find_held_lock+0x36/0x1c0
[  650.733119]  ? find_held_lock+0x36/0x1c0
[  650.737174]  ? check_same_owner+0x340/0x340
[  650.741485]  ? rcu_is_watching+0x8c/0x150
[  650.745628]  ? rcu_note_context_switch+0x730/0x730
[  650.750551]  ? security_prepare_creds+0x94/0xc0
[  650.755220]  __should_failslab+0x124/0x180
[  650.759443]  should_failslab+0x9/0x14
[  650.763237]  kmem_cache_alloc+0x2af/0x760
[  650.767369]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  650.772393]  __delayacct_tsk_init+0x20/0x80
[  650.776714]  copy_process.part.39+0x2ba8/0x7250
[  650.781384]  ? __lock_acquire+0x7fc/0x5020
[  650.785604]  ? __lock_acquire+0x7fc/0x5020
[  650.789820]  ? __lock_acquire+0x7fc/0x5020
[  650.794053]  ? __cleanup_sighand+0x70/0x70
[  650.798273]  ? debug_check_no_locks_freed+0x310/0x310
[  650.803443]  ? debug_check_no_locks_freed+0x310/0x310
[  650.808615]  ? print_usage_bug+0xc0/0xc0
[  650.812661]  ? print_usage_bug+0xc0/0xc0
[  650.816712]  ? d_splice_alias+0x7c9/0x11f0
[  650.820936]  ? lock_downgrade+0x8f0/0x8f0
[  650.825074]  ? d_instantiate_anon+0x30/0x30
[  650.829382]  ? __lock_acquire+0x7fc/0x5020
[  650.833603]  ? print_usage_bug+0xc0/0xc0
[  650.837650]  ? debug_check_no_locks_freed+0x310/0x310
[  650.842826]  ? debug_check_no_locks_freed+0x310/0x310
[  650.848002]  ? __lock_acquire+0x7fc/0x5020
[  650.852226]  ? print_usage_bug+0xc0/0xc0
[  650.856282]  ? lock_downgrade+0x8f0/0x8f0
[  650.860420]  ? debug_check_no_locks_freed+0x310/0x310
[  650.865591]  ? print_usage_bug+0xc0/0xc0
[  650.869632]  ? graph_lock+0x170/0x170
[  650.873424]  ? do_raw_spin_lock+0xc1/0x200
[  650.877645]  ? graph_lock+0x170/0x170
[  650.881432]  ? graph_lock+0x170/0x170
[  650.885245]  ? find_held_lock+0x36/0x1c0
[  650.889310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.894833]  ? _parse_integer+0x13b/0x190
[  650.898978]  ? graph_lock+0x170/0x170
[  650.902764]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  650.908285]  ? _kstrtoull+0x188/0x250
[  650.912068]  ? _parse_integer+0x190/0x190
[  650.916201]  ? graph_lock+0x170/0x170
[  650.919986]  ? lock_release+0xa30/0xa30
[  650.923946]  ? find_held_lock+0x36/0x1c0
[  650.927999]  ? lock_downgrade+0x8f0/0x8f0
[  650.932139]  ? kasan_check_read+0x11/0x20
[  650.936270]  ? rcu_is_watching+0x8c/0x150
[  650.940416]  ? pid_task+0x115/0x200
[  650.944034]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  650.948435]  ? save_stack+0xa9/0xd0
[  650.952053]  ? graph_lock+0x170/0x170
[  650.955851]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  650.961375]  ? proc_fail_nth_write+0x9e/0x210
[  650.965864]  ? proc_cwd_link+0x1d0/0x1d0
[  650.969926]  ? kasan_check_read+0x11/0x20
[  650.974062]  ? find_held_lock+0x36/0x1c0
[  650.978108]  _do_fork+0x291/0x12a0
[  650.981632]  ? fork_idle+0x1a0/0x1a0
[  650.985330]  ? __lock_is_held+0xb5/0x140
[  650.989378]  ? __sb_end_write+0xac/0xe0
[  650.993344]  ? vfs_write+0x2a8/0x560
[  650.997054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.002580]  ? ksys_write+0x1ae/0x260
[  651.006366]  ? __ia32_sys_read+0xb0/0xb0
[  651.010410]  ? syscall_slow_exit_work+0x500/0x500
[  651.015239]  __x64_sys_clone+0xbf/0x150
[  651.019212]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  651.024210]  do_syscall_64+0x1b9/0x820
[  651.028084]  ? syscall_return_slowpath+0x5e0/0x5e0
[  651.033000]  ? syscall_return_slowpath+0x31d/0x5e0
[  651.037938]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  651.043287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  651.048120]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  651.053291] RIP: 0033:0x441519
[  651.056459] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  651.075636] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  651.083345] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  651.090597] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  651.097884] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  651.105136] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  651.112403] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  651.124368] FAULT_INJECTION: forcing a failure.
[  651.124368] name failslab, interval 1, probability 0, space 0, times 0
[  651.135651] CPU: 0 PID: 4618 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  651.142741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  651.152075] Call Trace:
[  651.154655]  dump_stack+0x1c9/0x2b4
[  651.158274]  ? dump_stack_print_info.cold.2+0x52/0x52
[  651.163445]  ? save_stack+0x43/0xd0
[  651.167054]  ? kasan_kmalloc+0xc4/0xe0
[  651.170925]  ? kasan_slab_alloc+0x12/0x20
[  651.175055]  ? kmem_cache_alloc+0x12e/0x760
[  651.179362]  ? copy_creds+0x7b/0x470
[  651.183064]  should_fail.cold.4+0xa/0x1a
[  651.187109]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  651.192217]  ? find_held_lock+0x36/0x1c0
[  651.196283]  ? find_held_lock+0x36/0x1c0
[  651.200341]  ? check_same_owner+0x340/0x340
[  651.204641]  ? rcu_is_watching+0x8c/0x150
[  651.208782]  ? rcu_note_context_switch+0x730/0x730
[  651.213698]  ? security_prepare_creds+0x94/0xc0
[  651.218379]  __should_failslab+0x124/0x180
[  651.222620]  should_failslab+0x9/0x14
[  651.226410]  kmem_cache_alloc+0x2af/0x760
[  651.230542]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  651.235567]  __delayacct_tsk_init+0x20/0x80
[  651.239877]  copy_process.part.39+0x2ba8/0x7250
[  651.244534]  ? __lock_acquire+0x7fc/0x5020
[  651.248755]  ? __lock_acquire+0x7fc/0x5020
[  651.252974]  ? __lock_acquire+0x7fc/0x5020
[  651.257202]  ? __cleanup_sighand+0x70/0x70
[  651.261431]  ? debug_check_no_locks_freed+0x310/0x310
[  651.266602]  ? debug_check_no_locks_freed+0x310/0x310
[  651.271776]  ? print_usage_bug+0xc0/0xc0
[  651.275832]  ? print_usage_bug+0xc0/0xc0
[  651.279878]  ? d_splice_alias+0x7c9/0x11f0
[  651.284108]  ? lock_downgrade+0x8f0/0x8f0
[  651.288241]  ? d_instantiate_anon+0x30/0x30
[  651.292549]  ? __lock_acquire+0x7fc/0x5020
[  651.296767]  ? print_usage_bug+0xc0/0xc0
[  651.300840]  ? debug_check_no_locks_freed+0x310/0x310
[  651.306025]  ? debug_check_no_locks_freed+0x310/0x310
[  651.311210]  ? __lock_acquire+0x7fc/0x5020
[  651.315430]  ? print_usage_bug+0xc0/0xc0
[  651.319474]  ? lock_downgrade+0x8f0/0x8f0
[  651.323615]  ? debug_check_no_locks_freed+0x310/0x310
[  651.328799]  ? print_usage_bug+0xc0/0xc0
[  651.332845]  ? graph_lock+0x170/0x170
[  651.336634]  ? do_raw_spin_lock+0xc1/0x200
[  651.340862]  ? graph_lock+0x170/0x170
[  651.344645]  ? graph_lock+0x170/0x170
[  651.348433]  ? find_held_lock+0x36/0x1c0
[  651.352478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.358003]  ? _parse_integer+0x13b/0x190
[  651.362142]  ? graph_lock+0x170/0x170
[  651.365924]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  651.371444]  ? _kstrtoull+0x188/0x250
[  651.375225]  ? _parse_integer+0x190/0x190
[  651.379357]  ? graph_lock+0x170/0x170
[  651.383142]  ? lock_release+0xa30/0xa30
[  651.387101]  ? find_held_lock+0x36/0x1c0
[  651.391162]  ? lock_downgrade+0x8f0/0x8f0
[  651.395318]  ? kasan_check_read+0x11/0x20
[  651.399462]  ? rcu_is_watching+0x8c/0x150
[  651.403593]  ? pid_task+0x115/0x200
[  651.407207]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  651.411707]  ? save_stack+0xa9/0xd0
[  651.415318]  ? graph_lock+0x170/0x170
[  651.419105]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  651.424632]  ? proc_fail_nth_write+0x9e/0x210
[  651.429118]  ? proc_cwd_link+0x1d0/0x1d0
[  651.433165]  ? kasan_check_read+0x11/0x20
[  651.437297]  ? find_held_lock+0x36/0x1c0
[  651.441347]  _do_fork+0x291/0x12a0
[  651.444888]  ? fork_idle+0x1a0/0x1a0
[  651.448595]  ? __lock_is_held+0xb5/0x140
[  651.452660]  ? __sb_end_write+0xac/0xe0
[  651.456616]  ? vfs_write+0x2a8/0x560
[  651.460330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.465851]  ? ksys_write+0x1ae/0x260
[  651.469646]  ? __ia32_sys_read+0xb0/0xb0
[  651.473703]  ? syscall_slow_exit_work+0x500/0x500
[  651.478540]  __x64_sys_clone+0xbf/0x150
[  651.482498]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  651.487520]  do_syscall_64+0x1b9/0x820
[  651.491403]  ? syscall_return_slowpath+0x5e0/0x5e0
[  651.496314]  ? syscall_return_slowpath+0x31d/0x5e0
[  651.501230]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  651.506576]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  651.511408]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  651.516579] RIP: 0033:0x441519
[  651.519749] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  651.539121] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  651.546818] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  651.554079] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  651.561330] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  651.568590] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  651.575843] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  651.588272] FAULT_INJECTION: forcing a failure.
[  651.588272] name failslab, interval 1, probability 0, space 0, times 0
[  651.600268] CPU: 1 PID: 4620 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  651.607355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  651.616691] Call Trace:
[  651.619279]  dump_stack+0x1c9/0x2b4
[  651.622908]  ? dump_stack_print_info.cold.2+0x52/0x52
[  651.628105]  ? save_stack+0x43/0xd0
[  651.631738]  ? kasan_kmalloc+0xc4/0xe0
[  651.635609]  ? kasan_slab_alloc+0x12/0x20
[  651.639739]  ? kmem_cache_alloc+0x12e/0x760
[  651.644050]  ? copy_creds+0x7b/0x470
[  651.647756]  should_fail.cold.4+0xa/0x1a
[  651.651807]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  651.656900]  ? find_held_lock+0x36/0x1c0
[  651.660950]  ? find_held_lock+0x36/0x1c0
[  651.665008]  ? check_same_owner+0x340/0x340
[  651.669323]  ? rcu_is_watching+0x8c/0x150
[  651.673472]  ? rcu_note_context_switch+0x730/0x730
[  651.678400]  ? security_prepare_creds+0x94/0xc0
[  651.683062]  __should_failslab+0x124/0x180
[  651.687286]  should_failslab+0x9/0x14
[  651.691068]  kmem_cache_alloc+0x2af/0x760
[  651.695213]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  651.700221]  __delayacct_tsk_init+0x20/0x80
[  651.704530]  copy_process.part.39+0x2ba8/0x7250
[  651.709184]  ? __lock_acquire+0x7fc/0x5020
[  651.713403]  ? __lock_acquire+0x7fc/0x5020
[  651.717619]  ? __lock_acquire+0x7fc/0x5020
[  651.721867]  ? __cleanup_sighand+0x70/0x70
[  651.726086]  ? debug_check_no_locks_freed+0x310/0x310
[  651.731257]  ? debug_check_no_locks_freed+0x310/0x310
[  651.736435]  ? print_usage_bug+0xc0/0xc0
[  651.740482]  ? print_usage_bug+0xc0/0xc0
[  651.744528]  ? d_splice_alias+0x7c9/0x11f0
[  651.748749]  ? lock_downgrade+0x8f0/0x8f0
[  651.752894]  ? d_instantiate_anon+0x30/0x30
[  651.757204]  ? __lock_acquire+0x7fc/0x5020
[  651.761437]  ? print_usage_bug+0xc0/0xc0
[  651.765494]  ? debug_check_no_locks_freed+0x310/0x310
[  651.770672]  ? debug_check_no_locks_freed+0x310/0x310
[  651.775857]  ? __lock_acquire+0x7fc/0x5020
[  651.780087]  ? print_usage_bug+0xc0/0xc0
[  651.784138]  ? lock_downgrade+0x8f0/0x8f0
[  651.788297]  ? debug_check_no_locks_freed+0x310/0x310
[  651.793474]  ? print_usage_bug+0xc0/0xc0
[  651.797524]  ? graph_lock+0x170/0x170
[  651.801323]  ? do_raw_spin_lock+0xc1/0x200
[  651.805543]  ? graph_lock+0x170/0x170
[  651.809337]  ? graph_lock+0x170/0x170
[  651.813136]  ? find_held_lock+0x36/0x1c0
[  651.817183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.822720]  ? _parse_integer+0x13b/0x190
[  651.826856]  ? graph_lock+0x170/0x170
[  651.830643]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  651.836177]  ? _kstrtoull+0x188/0x250
[  651.839979]  ? _parse_integer+0x190/0x190
[  651.844121]  ? graph_lock+0x170/0x170
[  651.847911]  ? lock_release+0xa30/0xa30
[  651.851869]  ? find_held_lock+0x36/0x1c0
[  651.855917]  ? lock_downgrade+0x8f0/0x8f0
[  651.860053]  ? kasan_check_read+0x11/0x20
[  651.864202]  ? rcu_is_watching+0x8c/0x150
[  651.868344]  ? pid_task+0x115/0x200
[  651.871953]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  651.876356]  ? save_stack+0xa9/0xd0
[  651.879974]  ? graph_lock+0x170/0x170
[  651.883776]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  651.889297]  ? proc_fail_nth_write+0x9e/0x210
[  651.893777]  ? proc_cwd_link+0x1d0/0x1d0
[  651.897824]  ? kasan_check_read+0x11/0x20
[  651.901956]  ? find_held_lock+0x36/0x1c0
[  651.906004]  _do_fork+0x291/0x12a0
[  651.909538]  ? fork_idle+0x1a0/0x1a0
[  651.913235]  ? __lock_is_held+0xb5/0x140
[  651.917285]  ? __sb_end_write+0xac/0xe0
[  651.921255]  ? vfs_write+0x2a8/0x560
[  651.924958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.930475]  ? ksys_write+0x1ae/0x260
[  651.934267]  ? __ia32_sys_read+0xb0/0xb0
[  651.938313]  ? syscall_slow_exit_work+0x500/0x500
[  651.943140]  __x64_sys_clone+0xbf/0x150
[  651.947098]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  651.952111]  do_syscall_64+0x1b9/0x820
[  651.955982]  ? syscall_return_slowpath+0x5e0/0x5e0
[  651.960894]  ? syscall_return_slowpath+0x31d/0x5e0
[  651.965816]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  651.971168]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  651.975999]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  651.981180] RIP: 0033:0x441519
[  651.984347] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  652.003529] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  652.011244] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  652.018509] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  652.025765] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  652.033026] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  652.040290] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  652.052275] FAULT_INJECTION: forcing a failure.
[  652.052275] name failslab, interval 1, probability 0, space 0, times 0
[  652.063523] CPU: 0 PID: 4622 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  652.070624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  652.079975] Call Trace:
[  652.082572]  dump_stack+0x1c9/0x2b4
[  652.086199]  ? dump_stack_print_info.cold.2+0x52/0x52
[  652.091375]  ? save_stack+0x43/0xd0
[  652.094996]  ? kasan_kmalloc+0xc4/0xe0
[  652.098872]  ? kasan_slab_alloc+0x12/0x20
[  652.103048]  ? kmem_cache_alloc+0x12e/0x760
[  652.107357]  ? copy_creds+0x7b/0x470
[  652.111058]  should_fail.cold.4+0xa/0x1a
[  652.115128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  652.120222]  ? find_held_lock+0x36/0x1c0
[  652.124274]  ? find_held_lock+0x36/0x1c0
[  652.128334]  ? check_same_owner+0x340/0x340
[  652.132652]  ? rcu_is_watching+0x8c/0x150
[  652.136797]  ? rcu_note_context_switch+0x730/0x730
[  652.141713]  ? security_prepare_creds+0x94/0xc0
[  652.146372]  __should_failslab+0x124/0x180
[  652.150636]  should_failslab+0x9/0x14
[  652.154446]  kmem_cache_alloc+0x2af/0x760
[  652.158583]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  652.163596]  __delayacct_tsk_init+0x20/0x80
[  652.167904]  copy_process.part.39+0x2ba8/0x7250
[  652.172562]  ? __lock_acquire+0x7fc/0x5020
[  652.176787]  ? __lock_acquire+0x7fc/0x5020
[  652.181018]  ? __lock_acquire+0x7fc/0x5020
[  652.185261]  ? __cleanup_sighand+0x70/0x70
[  652.189483]  ? debug_check_no_locks_freed+0x310/0x310
[  652.194658]  ? debug_check_no_locks_freed+0x310/0x310
[  652.199848]  ? print_usage_bug+0xc0/0xc0
[  652.203901]  ? print_usage_bug+0xc0/0xc0
[  652.207971]  ? d_splice_alias+0x7c9/0x11f0
[  652.212203]  ? lock_downgrade+0x8f0/0x8f0
[  652.216356]  ? d_instantiate_anon+0x30/0x30
[  652.220690]  ? __lock_acquire+0x7fc/0x5020
[  652.224940]  ? print_usage_bug+0xc0/0xc0
[  652.229003]  ? debug_check_no_locks_freed+0x310/0x310
[  652.234218]  ? debug_check_no_locks_freed+0x310/0x310
[  652.239426]  ? __lock_acquire+0x7fc/0x5020
[  652.243706]  ? print_usage_bug+0xc0/0xc0
[  652.247779]  ? lock_downgrade+0x8f0/0x8f0
[  652.251945]  ? debug_check_no_locks_freed+0x310/0x310
[  652.257150]  ? print_usage_bug+0xc0/0xc0
[  652.261213]  ? graph_lock+0x170/0x170
[  652.265020]  ? do_raw_spin_lock+0xc1/0x200
[  652.269269]  ? graph_lock+0x170/0x170
[  652.273076]  ? graph_lock+0x170/0x170
[  652.276882]  ? find_held_lock+0x36/0x1c0
[  652.280942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.286474]  ? _parse_integer+0x13b/0x190
[  652.290625]  ? graph_lock+0x170/0x170
[  652.294533]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  652.300088]  ? _kstrtoull+0x188/0x250
[  652.303912]  ? _parse_integer+0x190/0x190
[  652.308059]  ? graph_lock+0x170/0x170
[  652.311855]  ? lock_release+0xa30/0xa30
[  652.315841]  ? find_held_lock+0x36/0x1c0
[  652.319915]  ? lock_downgrade+0x8f0/0x8f0
[  652.324074]  ? kasan_check_read+0x11/0x20
[  652.328213]  ? rcu_is_watching+0x8c/0x150
[  652.332359]  ? pid_task+0x115/0x200
[  652.335995]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  652.340401]  ? save_stack+0xa9/0xd0
[  652.344024]  ? graph_lock+0x170/0x170
[  652.347837]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  652.353380]  ? proc_fail_nth_write+0x9e/0x210
[  652.357876]  ? proc_cwd_link+0x1d0/0x1d0
[  652.362744]  ? kasan_check_read+0x11/0x20
[  652.366928]  ? find_held_lock+0x36/0x1c0
[  652.370989]  _do_fork+0x291/0x12a0
[  652.374528]  ? fork_idle+0x1a0/0x1a0
[  652.378250]  ? __lock_is_held+0xb5/0x140
[  652.382324]  ? __sb_end_write+0xac/0xe0
[  652.386288]  ? vfs_write+0x2a8/0x560
[  652.389998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.395560]  ? ksys_write+0x1ae/0x260
[  652.399358]  ? __ia32_sys_read+0xb0/0xb0
[  652.403417]  ? syscall_slow_exit_work+0x500/0x500
[  652.408258]  __x64_sys_clone+0xbf/0x150
[  652.412228]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  652.417259]  do_syscall_64+0x1b9/0x820
[  652.421146]  ? syscall_return_slowpath+0x5e0/0x5e0
[  652.426076]  ? syscall_return_slowpath+0x31d/0x5e0
[  652.431014]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  652.436382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  652.441237]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  652.446521] RIP: 0033:0x441519
[  652.449708] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  652.469032] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  652.476736] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  652.483993] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  652.491253] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  652.498511] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  652.505771] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  652.518213] FAULT_INJECTION: forcing a failure.
[  652.518213] name failslab, interval 1, probability 0, space 0, times 0
[  652.529461] CPU: 1 PID: 4624 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  652.536561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  652.545904] Call Trace:
[  652.548494]  dump_stack+0x1c9/0x2b4
[  652.552111]  ? dump_stack_print_info.cold.2+0x52/0x52
[  652.557288]  ? save_stack+0x43/0xd0
[  652.560907]  ? kasan_kmalloc+0xc4/0xe0
[  652.564781]  ? kasan_slab_alloc+0x12/0x20
[  652.568922]  ? kmem_cache_alloc+0x12e/0x760
[  652.573230]  ? copy_creds+0x7b/0x470
[  652.576945]  should_fail.cold.4+0xa/0x1a
[  652.581006]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  652.586103]  ? find_held_lock+0x36/0x1c0
[  652.590155]  ? find_held_lock+0x36/0x1c0
[  652.594212]  ? check_same_owner+0x340/0x340
[  652.598525]  ? rcu_is_watching+0x8c/0x150
[  652.602661]  ? rcu_note_context_switch+0x730/0x730
[  652.607578]  ? security_prepare_creds+0x94/0xc0
[  652.612257]  __should_failslab+0x124/0x180
[  652.616482]  should_failslab+0x9/0x14
[  652.620268]  kmem_cache_alloc+0x2af/0x760
[  652.624420]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  652.629439]  __delayacct_tsk_init+0x20/0x80
[  652.633750]  copy_process.part.39+0x2ba8/0x7250
[  652.638407]  ? __lock_acquire+0x7fc/0x5020
[  652.642636]  ? __lock_acquire+0x7fc/0x5020
[  652.646870]  ? __lock_acquire+0x7fc/0x5020
[  652.651096]  ? __cleanup_sighand+0x70/0x70
[  652.655317]  ? debug_check_no_locks_freed+0x310/0x310
[  652.660490]  ? debug_check_no_locks_freed+0x310/0x310
[  652.665666]  ? print_usage_bug+0xc0/0xc0
[  652.669717]  ? print_usage_bug+0xc0/0xc0
[  652.673774]  ? d_splice_alias+0x7c9/0x11f0
[  652.678001]  ? d_instantiate_anon+0x30/0x30
[  652.682319]  ? __lock_acquire+0x7fc/0x5020
[  652.686562]  ? print_usage_bug+0xc0/0xc0
[  652.690612]  ? debug_check_no_locks_freed+0x310/0x310
[  652.695791]  ? debug_check_no_locks_freed+0x310/0x310
[  652.700968]  ? __lock_acquire+0x7fc/0x5020
[  652.705189]  ? print_usage_bug+0xc0/0xc0
[  652.709233]  ? lock_downgrade+0x8f0/0x8f0
[  652.713374]  ? debug_check_no_locks_freed+0x310/0x310
[  652.718552]  ? print_usage_bug+0xc0/0xc0
[  652.722605]  ? graph_lock+0x170/0x170
[  652.726390]  ? do_raw_spin_lock+0xc1/0x200
[  652.730609]  ? graph_lock+0x170/0x170
[  652.734394]  ? graph_lock+0x170/0x170
[  652.738195]  ? find_held_lock+0x36/0x1c0
[  652.742243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.747768]  ? _parse_integer+0x13b/0x190
[  652.751904]  ? graph_lock+0x170/0x170
[  652.755706]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  652.761229]  ? _kstrtoull+0x188/0x250
[  652.765039]  ? _parse_integer+0x190/0x190
[  652.769199]  ? graph_lock+0x170/0x170
[  652.772998]  ? lock_release+0xa30/0xa30
[  652.776974]  ? find_held_lock+0x36/0x1c0
[  652.781052]  ? lock_downgrade+0x8f0/0x8f0
[  652.785212]  ? kasan_check_read+0x11/0x20
[  652.789357]  ? rcu_is_watching+0x8c/0x150
[  652.793495]  ? pid_task+0x115/0x200
[  652.797105]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  652.801496]  ? save_stack+0xa9/0xd0
[  652.805129]  ? graph_lock+0x170/0x170
[  652.808932]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  652.814455]  ? proc_fail_nth_write+0x9e/0x210
[  652.818934]  ? proc_cwd_link+0x1d0/0x1d0
[  652.822979]  ? kasan_check_read+0x11/0x20
[  652.827127]  ? find_held_lock+0x36/0x1c0
[  652.831176]  _do_fork+0x291/0x12a0
[  652.834701]  ? fork_idle+0x1a0/0x1a0
[  652.838406]  ? __lock_is_held+0xb5/0x140
[  652.842460]  ? __sb_end_write+0xac/0xe0
[  652.846415]  ? vfs_write+0x2a8/0x560
[  652.850129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.855647]  ? ksys_write+0x1ae/0x260
[  652.859431]  ? __ia32_sys_read+0xb0/0xb0
[  652.863479]  ? syscall_slow_exit_work+0x500/0x500
[  652.868314]  __x64_sys_clone+0xbf/0x150
[  652.872285]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  652.877300]  do_syscall_64+0x1b9/0x820
[  652.881171]  ? syscall_return_slowpath+0x5e0/0x5e0
[  652.886085]  ? syscall_return_slowpath+0x31d/0x5e0
[  652.891009]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  652.896392]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  652.901249]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  652.906425] RIP: 0033:0x441519
[  652.909595] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  652.928779] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  652.936481] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  652.943739] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  652.951011] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  652.958275] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  652.965529] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  652.978917] FAULT_INJECTION: forcing a failure.
[  652.978917] name failslab, interval 1, probability 0, space 0, times 0
[  652.990262] CPU: 1 PID: 4626 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  652.997359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  653.006701] Call Trace:
[  653.009281]  dump_stack+0x1c9/0x2b4
[  653.012896]  ? dump_stack_print_info.cold.2+0x52/0x52
[  653.018089]  ? save_stack+0x43/0xd0
[  653.021711]  ? kasan_kmalloc+0xc4/0xe0
[  653.025581]  ? kasan_slab_alloc+0x12/0x20
[  653.029712]  ? kmem_cache_alloc+0x12e/0x760
[  653.034025]  ? copy_creds+0x7b/0x470
[  653.037735]  should_fail.cold.4+0xa/0x1a
[  653.041785]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  653.046880]  ? lock_downgrade+0x8f0/0x8f0
[  653.051022]  ? find_held_lock+0x36/0x1c0
[  653.055091]  ? check_same_owner+0x340/0x340
[  653.059398]  ? rcu_note_context_switch+0x730/0x730
[  653.064318]  ? security_prepare_creds+0x94/0xc0
[  653.068978]  __should_failslab+0x124/0x180
[  653.073203]  should_failslab+0x9/0x14
[  653.077003]  kmem_cache_alloc+0x2af/0x760
[  653.081148]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  653.086154]  __delayacct_tsk_init+0x20/0x80
[  653.090476]  copy_process.part.39+0x2ba8/0x7250
[  653.095136]  ? __lock_acquire+0x7fc/0x5020
[  653.099360]  ? __lock_acquire+0x7fc/0x5020
[  653.103582]  ? __lock_acquire+0x7fc/0x5020
[  653.107817]  ? __cleanup_sighand+0x70/0x70
[  653.112061]  ? debug_check_no_locks_freed+0x310/0x310
[  653.117240]  ? debug_check_no_locks_freed+0x310/0x310
[  653.122416]  ? print_usage_bug+0xc0/0xc0
[  653.126469]  ? print_usage_bug+0xc0/0xc0
[  653.130518]  ? d_splice_alias+0x7c9/0x11f0
[  653.134738]  ? lock_downgrade+0x8f0/0x8f0
[  653.138872]  ? d_instantiate_anon+0x30/0x30
[  653.143180]  ? __lock_acquire+0x7fc/0x5020
[  653.147400]  ? print_usage_bug+0xc0/0xc0
[  653.151453]  ? debug_check_no_locks_freed+0x310/0x310
[  653.156637]  ? debug_check_no_locks_freed+0x310/0x310
[  653.161824]  ? __lock_acquire+0x7fc/0x5020
[  653.166048]  ? print_usage_bug+0xc0/0xc0
[  653.170094]  ? lock_downgrade+0x8f0/0x8f0
[  653.174231]  ? debug_check_no_locks_freed+0x310/0x310
[  653.179408]  ? print_usage_bug+0xc0/0xc0
[  653.183461]  ? graph_lock+0x170/0x170
[  653.187244]  ? do_raw_spin_lock+0xc1/0x200
[  653.191477]  ? graph_lock+0x170/0x170
[  653.196162]  ? graph_lock+0x170/0x170
[  653.199964]  ? find_held_lock+0x36/0x1c0
[  653.204018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.209550]  ? _parse_integer+0x13b/0x190
[  653.213684]  ? graph_lock+0x170/0x170
[  653.217467]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  653.222986]  ? _kstrtoull+0x188/0x250
[  653.226874]  ? _parse_integer+0x190/0x190
[  653.231021]  ? graph_lock+0x170/0x170
[  653.234818]  ? lock_release+0xa30/0xa30
[  653.238793]  ? find_held_lock+0x36/0x1c0
[  653.242849]  ? lock_downgrade+0x8f0/0x8f0
[  653.246984]  ? kasan_check_read+0x11/0x20
[  653.251118]  ? rcu_is_watching+0x8c/0x150
[  653.255251]  ? pid_task+0x115/0x200
[  653.258860]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  653.263256]  ? save_stack+0xa9/0xd0
[  653.266884]  ? graph_lock+0x170/0x170
[  653.270686]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  653.276206]  ? proc_fail_nth_write+0x9e/0x210
[  653.280692]  ? proc_cwd_link+0x1d0/0x1d0
[  653.284747]  ? kasan_check_read+0x11/0x20
[  653.288881]  ? find_held_lock+0x36/0x1c0
[  653.292928]  _do_fork+0x291/0x12a0
[  653.296455]  ? fork_idle+0x1a0/0x1a0
[  653.300156]  ? __lock_is_held+0xb5/0x140
[  653.304205]  ? __sb_end_write+0xac/0xe0
[  653.308173]  ? vfs_write+0x2a8/0x560
[  653.311874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.317389]  ? ksys_write+0x1ae/0x260
[  653.321171]  ? __ia32_sys_read+0xb0/0xb0
[  653.325228]  ? syscall_slow_exit_work+0x500/0x500
[  653.330060]  __x64_sys_clone+0xbf/0x150
[  653.334029]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  653.339043]  do_syscall_64+0x1b9/0x820
[  653.342935]  ? syscall_return_slowpath+0x5e0/0x5e0
[  653.347852]  ? syscall_return_slowpath+0x31d/0x5e0
[  653.352767]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  653.358128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  653.362959]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  653.368131] RIP: 0033:0x441519
[  653.371311] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  653.390590] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  653.398305] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  653.405579] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  653.412843] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  653.420097] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  653.427350] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  653.438807] FAULT_INJECTION: forcing a failure.
[  653.438807] name failslab, interval 1, probability 0, space 0, times 0
[  653.450150] CPU: 1 PID: 4628 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  653.457258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  653.466605] Call Trace:
[  653.469187]  dump_stack+0x1c9/0x2b4
[  653.472815]  ? dump_stack_print_info.cold.2+0x52/0x52
[  653.478009]  ? save_stack+0x43/0xd0
[  653.481631]  ? kasan_kmalloc+0xc4/0xe0
[  653.485509]  ? kasan_slab_alloc+0x12/0x20
[  653.489640]  ? kmem_cache_alloc+0x12e/0x760
[  653.493950]  ? copy_creds+0x7b/0x470
[  653.497665]  should_fail.cold.4+0xa/0x1a
[  653.501712]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  653.506812]  ? find_held_lock+0x36/0x1c0
[  653.510881]  ? find_held_lock+0x36/0x1c0
[  653.514948]  ? check_same_owner+0x340/0x340
[  653.519262]  ? rcu_is_watching+0x8c/0x150
[  653.523393]  ? rcu_note_context_switch+0x730/0x730
[  653.528313]  ? security_prepare_creds+0x94/0xc0
[  653.532978]  __should_failslab+0x124/0x180
[  653.537206]  should_failslab+0x9/0x14
[  653.540994]  kmem_cache_alloc+0x2af/0x760
[  653.545133]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  653.550152]  __delayacct_tsk_init+0x20/0x80
[  653.554473]  copy_process.part.39+0x2ba8/0x7250
[  653.559127]  ? __lock_acquire+0x7fc/0x5020
[  653.563347]  ? __lock_acquire+0x7fc/0x5020
[  653.567566]  ? __lock_acquire+0x7fc/0x5020
[  653.571792]  ? __cleanup_sighand+0x70/0x70
[  653.576018]  ? debug_check_no_locks_freed+0x310/0x310
[  653.581205]  ? debug_check_no_locks_freed+0x310/0x310
[  653.586378]  ? print_usage_bug+0xc0/0xc0
[  653.590426]  ? print_usage_bug+0xc0/0xc0
[  653.594480]  ? d_splice_alias+0x7c9/0x11f0
[  653.598709]  ? lock_downgrade+0x8f0/0x8f0
[  653.602841]  ? d_instantiate_anon+0x30/0x30
[  653.607146]  ? __lock_acquire+0x7fc/0x5020
[  653.611365]  ? print_usage_bug+0xc0/0xc0
[  653.615413]  ? debug_check_no_locks_freed+0x310/0x310
[  653.620607]  ? debug_check_no_locks_freed+0x310/0x310
[  653.625787]  ? __lock_acquire+0x7fc/0x5020
[  653.630006]  ? print_usage_bug+0xc0/0xc0
[  653.634066]  ? lock_downgrade+0x8f0/0x8f0
[  653.638206]  ? debug_check_no_locks_freed+0x310/0x310
[  653.643382]  ? print_usage_bug+0xc0/0xc0
[  653.647435]  ? graph_lock+0x170/0x170
[  653.651219]  ? do_raw_spin_lock+0xc1/0x200
[  653.655443]  ? graph_lock+0x170/0x170
[  653.659241]  ? graph_lock+0x170/0x170
[  653.663053]  ? find_held_lock+0x36/0x1c0
[  653.667099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.672622]  ? _parse_integer+0x13b/0x190
[  653.676767]  ? graph_lock+0x170/0x170
[  653.680556]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  653.686080]  ? _kstrtoull+0x188/0x250
[  653.689870]  ? _parse_integer+0x190/0x190
[  653.694036]  ? graph_lock+0x170/0x170
[  653.697829]  ? lock_release+0xa30/0xa30
[  653.701789]  ? find_held_lock+0x36/0x1c0
[  653.705840]  ? lock_downgrade+0x8f0/0x8f0
[  653.709976]  ? kasan_check_read+0x11/0x20
[  653.714104]  ? rcu_is_watching+0x8c/0x150
[  653.718236]  ? pid_task+0x115/0x200
[  653.721845]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  653.726250]  ? save_stack+0xa9/0xd0
[  653.729866]  ? graph_lock+0x170/0x170
[  653.733652]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  653.739186]  ? proc_fail_nth_write+0x9e/0x210
[  653.743669]  ? proc_cwd_link+0x1d0/0x1d0
[  653.747753]  ? kasan_check_read+0x11/0x20
[  653.751928]  ? find_held_lock+0x36/0x1c0
[  653.756000]  _do_fork+0x291/0x12a0
[  653.759539]  ? fork_idle+0x1a0/0x1a0
[  653.763247]  ? __lock_is_held+0xb5/0x140
[  653.767318]  ? __sb_end_write+0xac/0xe0
[  653.771281]  ? vfs_write+0x2a8/0x560
[  653.774996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.780537]  ? ksys_write+0x1ae/0x260
[  653.784328]  ? __ia32_sys_read+0xb0/0xb0
[  653.788390]  ? syscall_slow_exit_work+0x500/0x500
[  653.793247]  __x64_sys_clone+0xbf/0x150
[  653.797234]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  653.802252]  do_syscall_64+0x1b9/0x820
[  653.806163]  ? syscall_return_slowpath+0x5e0/0x5e0
[  653.811082]  ? syscall_return_slowpath+0x31d/0x5e0
[  653.816003]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  653.821371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  653.826215]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  653.831386] RIP: 0033:0x441519
[  653.834554] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  653.853723] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  653.861426] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  653.868682] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  653.875939] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  653.883209] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  653.890463] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  653.901937] FAULT_INJECTION: forcing a failure.
[  653.901937] name failslab, interval 1, probability 0, space 0, times 0
[  653.913209] CPU: 1 PID: 4630 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  653.920307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  653.929652] Call Trace:
[  653.932236]  dump_stack+0x1c9/0x2b4
[  653.935851]  ? dump_stack_print_info.cold.2+0x52/0x52
[  653.941038]  ? save_stack+0x43/0xd0
[  653.944656]  ? kasan_kmalloc+0xc4/0xe0
[  653.948526]  ? kasan_slab_alloc+0x12/0x20
[  653.952659]  ? kmem_cache_alloc+0x12e/0x760
[  653.956963]  ? copy_creds+0x7b/0x470
[  653.960665]  should_fail.cold.4+0xa/0x1a
[  653.964731]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  653.969823]  ? find_held_lock+0x36/0x1c0
[  653.973874]  ? find_held_lock+0x36/0x1c0
[  653.977940]  ? check_same_owner+0x340/0x340
[  653.982244]  ? rcu_is_watching+0x8c/0x150
[  653.986372]  ? rcu_note_context_switch+0x730/0x730
[  653.991290]  ? security_prepare_creds+0x94/0xc0
[  653.995953]  __should_failslab+0x124/0x180
[  654.000172]  should_failslab+0x9/0x14
[  654.003961]  kmem_cache_alloc+0x2af/0x760
[  654.008096]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  654.013113]  __delayacct_tsk_init+0x20/0x80
[  654.017419]  copy_process.part.39+0x2ba8/0x7250
[  654.022088]  ? __lock_acquire+0x7fc/0x5020
[  654.026311]  ? __lock_acquire+0x7fc/0x5020
[  654.030529]  ? __lock_acquire+0x7fc/0x5020
[  654.034752]  ? __cleanup_sighand+0x70/0x70
[  654.038970]  ? debug_check_no_locks_freed+0x310/0x310
[  654.044142]  ? debug_check_no_locks_freed+0x310/0x310
[  654.049314]  ? print_usage_bug+0xc0/0xc0
[  654.053362]  ? print_usage_bug+0xc0/0xc0
[  654.057405]  ? d_splice_alias+0x7c9/0x11f0
[  654.061621]  ? lock_downgrade+0x8f0/0x8f0
[  654.065758]  ? d_instantiate_anon+0x30/0x30
[  654.070064]  ? __lock_acquire+0x7fc/0x5020
[  654.074290]  ? print_usage_bug+0xc0/0xc0
[  654.078336]  ? debug_check_no_locks_freed+0x310/0x310
[  654.083516]  ? debug_check_no_locks_freed+0x310/0x310
[  654.088701]  ? __lock_acquire+0x7fc/0x5020
[  654.092918]  ? print_usage_bug+0xc0/0xc0
[  654.096962]  ? lock_downgrade+0x8f0/0x8f0
[  654.101104]  ? debug_check_no_locks_freed+0x310/0x310
[  654.106290]  ? print_usage_bug+0xc0/0xc0
[  654.110334]  ? graph_lock+0x170/0x170
[  654.114119]  ? do_raw_spin_lock+0xc1/0x200
[  654.118344]  ? graph_lock+0x170/0x170
[  654.122130]  ? graph_lock+0x170/0x170
[  654.125919]  ? find_held_lock+0x36/0x1c0
[  654.129973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.135507]  ? _parse_integer+0x13b/0x190
[  654.139641]  ? graph_lock+0x170/0x170
[  654.143428]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  654.148947]  ? _kstrtoull+0x188/0x250
[  654.152730]  ? _parse_integer+0x190/0x190
[  654.156860]  ? graph_lock+0x170/0x170
[  654.160646]  ? lock_release+0xa30/0xa30
[  654.164606]  ? find_held_lock+0x36/0x1c0
[  654.168679]  ? lock_downgrade+0x8f0/0x8f0
[  654.172812]  ? kasan_check_read+0x11/0x20
[  654.176954]  ? rcu_is_watching+0x8c/0x150
[  654.181084]  ? pid_task+0x115/0x200
[  654.184704]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  654.189097]  ? save_stack+0xa9/0xd0
[  654.192722]  ? graph_lock+0x170/0x170
[  654.196512]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  654.202040]  ? proc_fail_nth_write+0x9e/0x210
[  654.206522]  ? proc_cwd_link+0x1d0/0x1d0
[  654.210585]  ? kasan_check_read+0x11/0x20
[  654.214720]  ? find_held_lock+0x36/0x1c0
[  654.218775]  _do_fork+0x291/0x12a0
[  654.222311]  ? fork_idle+0x1a0/0x1a0
[  654.226027]  ? __lock_is_held+0xb5/0x140
[  654.230882]  ? __sb_end_write+0xac/0xe0
[  654.234842]  ? vfs_write+0x2a8/0x560
[  654.238545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.244066]  ? ksys_write+0x1ae/0x260
[  654.247853]  ? __ia32_sys_read+0xb0/0xb0
[  654.251907]  ? syscall_slow_exit_work+0x500/0x500
[  654.256739]  __x64_sys_clone+0xbf/0x150
[  654.260706]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  654.265711]  do_syscall_64+0x1b9/0x820
[  654.269582]  ? syscall_return_slowpath+0x5e0/0x5e0
[  654.274494]  ? syscall_return_slowpath+0x31d/0x5e0
[  654.279427]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  654.284780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  654.289625]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  654.294799] RIP: 0033:0x441519
[  654.297977] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  654.317272] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  654.324972] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  654.332226] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  654.339484] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  654.346749] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  654.354018] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  654.365418] FAULT_INJECTION: forcing a failure.
[  654.365418] name failslab, interval 1, probability 0, space 0, times 0
[  654.376770] CPU: 1 PID: 4632 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  654.383866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  654.393203] Call Trace:
[  654.395785]  dump_stack+0x1c9/0x2b4
[  654.399405]  ? dump_stack_print_info.cold.2+0x52/0x52
[  654.404585]  ? save_stack+0x43/0xd0
[  654.408212]  ? kasan_kmalloc+0xc4/0xe0
[  654.412090]  ? kasan_slab_alloc+0x12/0x20
[  654.416223]  ? kmem_cache_alloc+0x12e/0x760
[  654.420546]  ? copy_creds+0x7b/0x470
[  654.424251]  should_fail.cold.4+0xa/0x1a
[  654.428311]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  654.433403]  ? find_held_lock+0x36/0x1c0
[  654.437464]  ? find_held_lock+0x36/0x1c0
[  654.441526]  ? check_same_owner+0x340/0x340
[  654.445839]  ? rcu_is_watching+0x8c/0x150
[  654.449980]  ? rcu_note_context_switch+0x730/0x730
[  654.454900]  ? security_prepare_creds+0x94/0xc0
[  654.459563]  __should_failslab+0x124/0x180
[  654.463806]  should_failslab+0x9/0x14
[  654.467589]  kmem_cache_alloc+0x2af/0x760
[  654.471734]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  654.476749]  __delayacct_tsk_init+0x20/0x80
[  654.481064]  copy_process.part.39+0x2ba8/0x7250
[  654.485720]  ? __lock_acquire+0x7fc/0x5020
[  654.489938]  ? __lock_acquire+0x7fc/0x5020
[  654.494153]  ? __lock_acquire+0x7fc/0x5020
[  654.498377]  ? __cleanup_sighand+0x70/0x70
[  654.502596]  ? debug_check_no_locks_freed+0x310/0x310
[  654.507781]  ? debug_check_no_locks_freed+0x310/0x310
[  654.512965]  ? print_usage_bug+0xc0/0xc0
[  654.517016]  ? print_usage_bug+0xc0/0xc0
[  654.521078]  ? d_splice_alias+0x7c9/0x11f0
[  654.525298]  ? lock_downgrade+0x8f0/0x8f0
[  654.529430]  ? d_instantiate_anon+0x30/0x30
[  654.533747]  ? __lock_acquire+0x7fc/0x5020
[  654.537979]  ? print_usage_bug+0xc0/0xc0
[  654.542053]  ? debug_check_no_locks_freed+0x310/0x310
[  654.547248]  ? debug_check_no_locks_freed+0x310/0x310
[  654.552426]  ? __lock_acquire+0x7fc/0x5020
[  654.556650]  ? print_usage_bug+0xc0/0xc0
[  654.560705]  ? lock_downgrade+0x8f0/0x8f0
[  654.564852]  ? debug_check_no_locks_freed+0x310/0x310
[  654.570039]  ? print_usage_bug+0xc0/0xc0
[  654.574086]  ? graph_lock+0x170/0x170
[  654.577870]  ? do_raw_spin_lock+0xc1/0x200
[  654.582089]  ? graph_lock+0x170/0x170
[  654.585875]  ? graph_lock+0x170/0x170
[  654.589664]  ? find_held_lock+0x36/0x1c0
[  654.593713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.599245]  ? _parse_integer+0x13b/0x190
[  654.603386]  ? graph_lock+0x170/0x170
[  654.607169]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  654.612690]  ? _kstrtoull+0x188/0x250
[  654.616475]  ? _parse_integer+0x190/0x190
[  654.620607]  ? graph_lock+0x170/0x170
[  654.624414]  ? lock_release+0xa30/0xa30
[  654.628373]  ? find_held_lock+0x36/0x1c0
[  654.632425]  ? lock_downgrade+0x8f0/0x8f0
[  654.636565]  ? kasan_check_read+0x11/0x20
[  654.640697]  ? rcu_is_watching+0x8c/0x150
[  654.644839]  ? pid_task+0x115/0x200
[  654.648449]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  654.652841]  ? save_stack+0xa9/0xd0
[  654.656451]  ? graph_lock+0x170/0x170
[  654.660256]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  654.665779]  ? proc_fail_nth_write+0x9e/0x210
[  654.670254]  ? proc_cwd_link+0x1d0/0x1d0
[  654.674298]  ? kasan_check_read+0x11/0x20
[  654.678430]  ? find_held_lock+0x36/0x1c0
[  654.682475]  _do_fork+0x291/0x12a0
[  654.685999]  ? fork_idle+0x1a0/0x1a0
[  654.689702]  ? __lock_is_held+0xb5/0x140
[  654.693752]  ? __sb_end_write+0xac/0xe0
[  654.697711]  ? vfs_write+0x2a8/0x560
[  654.701412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.706928]  ? ksys_write+0x1ae/0x260
[  654.710711]  ? __ia32_sys_read+0xb0/0xb0
[  654.714759]  ? syscall_slow_exit_work+0x500/0x500
[  654.719588]  __x64_sys_clone+0xbf/0x150
[  654.723549]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  654.728554]  do_syscall_64+0x1b9/0x820
[  654.732426]  ? syscall_return_slowpath+0x5e0/0x5e0
[  654.737341]  ? syscall_return_slowpath+0x31d/0x5e0
[  654.742262]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  654.747617]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  654.752464]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  654.757646] RIP: 0033:0x441519
[  654.760817] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  654.780014] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  654.787722] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  654.794976] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  654.802230] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  654.809480] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  654.816739] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  654.828264] FAULT_INJECTION: forcing a failure.
[  654.828264] name failslab, interval 1, probability 0, space 0, times 0
[  654.839570] CPU: 1 PID: 4634 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  654.846663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  654.855999] Call Trace:
[  654.858591]  dump_stack+0x1c9/0x2b4
[  654.862224]  ? dump_stack_print_info.cold.2+0x52/0x52
[  654.867404]  ? save_stack+0x43/0xd0
[  654.871018]  ? kasan_kmalloc+0xc4/0xe0
[  654.874896]  ? kasan_slab_alloc+0x12/0x20
[  654.879035]  ? kmem_cache_alloc+0x12e/0x760
[  654.883354]  ? copy_creds+0x7b/0x470
[  654.887148]  should_fail.cold.4+0xa/0x1a
[  654.891194]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  654.896286]  ? find_held_lock+0x36/0x1c0
[  654.900335]  ? find_held_lock+0x36/0x1c0
[  654.904398]  ? check_same_owner+0x340/0x340
[  654.908700]  ? rcu_is_watching+0x8c/0x150
[  654.912842]  ? rcu_note_context_switch+0x730/0x730
[  654.917787]  ? security_prepare_creds+0x94/0xc0
[  654.922447]  __should_failslab+0x124/0x180
[  654.926668]  should_failslab+0x9/0x14
[  654.930454]  kmem_cache_alloc+0x2af/0x760
[  654.934600]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  654.939607]  __delayacct_tsk_init+0x20/0x80
[  654.943925]  copy_process.part.39+0x2ba8/0x7250
[  654.948592]  ? __lock_acquire+0x7fc/0x5020
[  654.952823]  ? __lock_acquire+0x7fc/0x5020
[  654.957053]  ? __lock_acquire+0x7fc/0x5020
[  654.961292]  ? __cleanup_sighand+0x70/0x70
[  654.965521]  ? debug_check_no_locks_freed+0x310/0x310
[  654.970698]  ? debug_check_no_locks_freed+0x310/0x310
[  654.975883]  ? print_usage_bug+0xc0/0xc0
[  654.979929]  ? print_usage_bug+0xc0/0xc0
[  654.983973]  ? d_splice_alias+0x7c9/0x11f0
[  654.988187]  ? lock_downgrade+0x8f0/0x8f0
[  654.992335]  ? d_instantiate_anon+0x30/0x30
[  654.996641]  ? __lock_acquire+0x7fc/0x5020
[  655.000865]  ? print_usage_bug+0xc0/0xc0
[  655.004921]  ? debug_check_no_locks_freed+0x310/0x310
[  655.010095]  ? debug_check_no_locks_freed+0x310/0x310
[  655.015266]  ? __lock_acquire+0x7fc/0x5020
[  655.019492]  ? print_usage_bug+0xc0/0xc0
[  655.023534]  ? lock_downgrade+0x8f0/0x8f0
[  655.027682]  ? debug_check_no_locks_freed+0x310/0x310
[  655.032857]  ? print_usage_bug+0xc0/0xc0
[  655.036899]  ? graph_lock+0x170/0x170
[  655.040682]  ? do_raw_spin_lock+0xc1/0x200
[  655.044913]  ? graph_lock+0x170/0x170
[  655.048699]  ? graph_lock+0x170/0x170
[  655.052496]  ? find_held_lock+0x36/0x1c0
[  655.056541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.062063]  ? _parse_integer+0x13b/0x190
[  655.066212]  ? graph_lock+0x170/0x170
[  655.069995]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  655.075538]  ? _kstrtoull+0x188/0x250
[  655.079328]  ? _parse_integer+0x190/0x190
[  655.083559]  ? graph_lock+0x170/0x170
[  655.087355]  ? lock_release+0xa30/0xa30
[  655.091334]  ? find_held_lock+0x36/0x1c0
[  655.095391]  ? lock_downgrade+0x8f0/0x8f0
[  655.099537]  ? kasan_check_read+0x11/0x20
[  655.103668]  ? rcu_is_watching+0x8c/0x150
[  655.107813]  ? pid_task+0x115/0x200
[  655.111419]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  655.115812]  ? save_stack+0xa9/0xd0
[  655.119437]  ? graph_lock+0x170/0x170
[  655.123228]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  655.128745]  ? proc_fail_nth_write+0x9e/0x210
[  655.133220]  ? proc_cwd_link+0x1d0/0x1d0
[  655.137266]  ? kasan_check_read+0x11/0x20
[  655.141404]  ? find_held_lock+0x36/0x1c0
[  655.145450]  _do_fork+0x291/0x12a0
[  655.148989]  ? fork_idle+0x1a0/0x1a0
[  655.152689]  ? __lock_is_held+0xb5/0x140
[  655.156751]  ? __sb_end_write+0xac/0xe0
[  655.160716]  ? vfs_write+0x2a8/0x560
[  655.164426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.169951]  ? ksys_write+0x1ae/0x260
[  655.173732]  ? __ia32_sys_read+0xb0/0xb0
[  655.177778]  ? syscall_slow_exit_work+0x500/0x500
[  655.182608]  __x64_sys_clone+0xbf/0x150
[  655.186570]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  655.191572]  do_syscall_64+0x1b9/0x820
[  655.195445]  ? syscall_return_slowpath+0x5e0/0x5e0
[  655.200369]  ? syscall_return_slowpath+0x31d/0x5e0
[  655.206037]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  655.211405]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  655.216239]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  655.221411] RIP: 0033:0x441519
[  655.224580] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  655.243791] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  655.251489] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  655.258753] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  655.266012] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  655.273282] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  655.280535] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  655.292263] FAULT_INJECTION: forcing a failure.
[  655.292263] name failslab, interval 1, probability 0, space 0, times 0
[  655.303511] CPU: 1 PID: 4636 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  655.310609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  655.319958] Call Trace:
[  655.322537]  dump_stack+0x1c9/0x2b4
[  655.326152]  ? dump_stack_print_info.cold.2+0x52/0x52
[  655.331334]  ? save_stack+0x43/0xd0
[  655.334943]  ? kasan_kmalloc+0xc4/0xe0
[  655.338814]  ? kasan_slab_alloc+0x12/0x20
[  655.342949]  ? kmem_cache_alloc+0x12e/0x760
[  655.347258]  ? copy_creds+0x7b/0x470
[  655.350960]  should_fail.cold.4+0xa/0x1a
[  655.355030]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.360121]  ? find_held_lock+0x36/0x1c0
[  655.364181]  ? find_held_lock+0x36/0x1c0
[  655.368251]  ? check_same_owner+0x340/0x340
[  655.372559]  ? rcu_is_watching+0x8c/0x150
[  655.376689]  ? rcu_note_context_switch+0x730/0x730
[  655.381606]  ? security_prepare_creds+0x94/0xc0
[  655.386279]  __should_failslab+0x124/0x180
[  655.390501]  should_failslab+0x9/0x14
[  655.394292]  kmem_cache_alloc+0x2af/0x760
[  655.398428]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  655.403437]  __delayacct_tsk_init+0x20/0x80
[  655.407749]  copy_process.part.39+0x2ba8/0x7250
[  655.412420]  ? __lock_acquire+0x7fc/0x5020
[  655.416652]  ? __lock_acquire+0x7fc/0x5020
[  655.420871]  ? __lock_acquire+0x7fc/0x5020
[  655.425098]  ? __cleanup_sighand+0x70/0x70
[  655.429321]  ? debug_check_no_locks_freed+0x310/0x310
[  655.434669]  ? debug_check_no_locks_freed+0x310/0x310
[  655.439859]  ? print_usage_bug+0xc0/0xc0
[  655.443921]  ? print_usage_bug+0xc0/0xc0
[  655.447984]  ? d_splice_alias+0x7c9/0x11f0
[  655.452202]  ? lock_downgrade+0x8f0/0x8f0
[  655.456347]  ? d_instantiate_anon+0x30/0x30
[  655.460679]  ? __lock_acquire+0x7fc/0x5020
[  655.464913]  ? print_usage_bug+0xc0/0xc0
[  655.468962]  ? debug_check_no_locks_freed+0x310/0x310
[  655.474141]  ? debug_check_no_locks_freed+0x310/0x310
[  655.479322]  ? __lock_acquire+0x7fc/0x5020
[  655.483551]  ? print_usage_bug+0xc0/0xc0
[  655.487596]  ? lock_downgrade+0x8f0/0x8f0
[  655.491740]  ? debug_check_no_locks_freed+0x310/0x310
[  655.496924]  ? print_usage_bug+0xc0/0xc0
[  655.500972]  ? graph_lock+0x170/0x170
[  655.504763]  ? do_raw_spin_lock+0xc1/0x200
[  655.508994]  ? graph_lock+0x170/0x170
[  655.512782]  ? graph_lock+0x170/0x170
[  655.516570]  ? find_held_lock+0x36/0x1c0
[  655.520619]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.526141]  ? _parse_integer+0x13b/0x190
[  655.530283]  ? graph_lock+0x170/0x170
[  655.534071]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  655.539594]  ? _kstrtoull+0x188/0x250
[  655.543391]  ? _parse_integer+0x190/0x190
[  655.547527]  ? graph_lock+0x170/0x170
[  655.551311]  ? lock_release+0xa30/0xa30
[  655.555271]  ? find_held_lock+0x36/0x1c0
[  655.559336]  ? lock_downgrade+0x8f0/0x8f0
[  655.563477]  ? kasan_check_read+0x11/0x20
[  655.567608]  ? rcu_is_watching+0x8c/0x150
[  655.571738]  ? pid_task+0x115/0x200
[  655.575363]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  655.579755]  ? save_stack+0xa9/0xd0
[  655.583370]  ? graph_lock+0x170/0x170
[  655.587164]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  655.592704]  ? proc_fail_nth_write+0x9e/0x210
[  655.597184]  ? proc_cwd_link+0x1d0/0x1d0
[  655.601234]  ? kasan_check_read+0x11/0x20
[  655.605372]  ? find_held_lock+0x36/0x1c0
[  655.609436]  _do_fork+0x291/0x12a0
[  655.612969]  ? fork_idle+0x1a0/0x1a0
[  655.616671]  ? __lock_is_held+0xb5/0x140
[  655.620737]  ? __sb_end_write+0xac/0xe0
[  655.624692]  ? vfs_write+0x2a8/0x560
[  655.628414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.633940]  ? ksys_write+0x1ae/0x260
[  655.637736]  ? __ia32_sys_read+0xb0/0xb0
[  655.641781]  ? syscall_slow_exit_work+0x500/0x500
[  655.646609]  __x64_sys_clone+0xbf/0x150
[  655.650567]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  655.655570]  do_syscall_64+0x1b9/0x820
[  655.659441]  ? syscall_return_slowpath+0x5e0/0x5e0
[  655.664355]  ? syscall_return_slowpath+0x31d/0x5e0
[  655.669276]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  655.674625]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  655.679458]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  655.684642] RIP: 0033:0x441519
[  655.687810] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  655.707011] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  655.714720] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  655.721987] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  655.729247] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  655.736501] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  655.743754] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  655.756119] FAULT_INJECTION: forcing a failure.
[  655.756119] name failslab, interval 1, probability 0, space 0, times 0
[  655.767450] CPU: 1 PID: 4638 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  655.774542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  655.783895] Call Trace:
[  655.786489]  dump_stack+0x1c9/0x2b4
[  655.790103]  ? dump_stack_print_info.cold.2+0x52/0x52
[  655.795287]  ? save_stack+0x43/0xd0
[  655.798910]  ? kasan_kmalloc+0xc4/0xe0
[  655.802800]  ? kasan_slab_alloc+0x12/0x20
[  655.806943]  ? kmem_cache_alloc+0x12e/0x760
[  655.811259]  ? copy_creds+0x7b/0x470
[  655.814964]  should_fail.cold.4+0xa/0x1a
[  655.819035]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.824145]  ? find_held_lock+0x36/0x1c0
[  655.828197]  ? find_held_lock+0x36/0x1c0
[  655.832252]  ? check_same_owner+0x340/0x340
[  655.836556]  ? rcu_is_watching+0x8c/0x150
[  655.840711]  ? rcu_note_context_switch+0x730/0x730
[  655.845651]  ? security_prepare_creds+0x94/0xc0
[  655.850320]  __should_failslab+0x124/0x180
[  655.854557]  should_failslab+0x9/0x14
[  655.858343]  kmem_cache_alloc+0x2af/0x760
[  655.862491]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  655.867512]  __delayacct_tsk_init+0x20/0x80
[  655.871834]  copy_process.part.39+0x2ba8/0x7250
[  655.876502]  ? __lock_acquire+0x7fc/0x5020
[  655.880737]  ? __lock_acquire+0x7fc/0x5020
[  655.884956]  ? __lock_acquire+0x7fc/0x5020
[  655.889183]  ? __cleanup_sighand+0x70/0x70
[  655.893403]  ? debug_check_no_locks_freed+0x310/0x310
[  655.898587]  ? debug_check_no_locks_freed+0x310/0x310
[  655.903767]  ? print_usage_bug+0xc0/0xc0
[  655.907827]  ? print_usage_bug+0xc0/0xc0
[  655.911875]  ? d_splice_alias+0x7c9/0x11f0
[  655.916109]  ? lock_downgrade+0x8f0/0x8f0
[  655.920250]  ? d_instantiate_anon+0x30/0x30
[  655.924566]  ? __lock_acquire+0x7fc/0x5020
[  655.928787]  ? print_usage_bug+0xc0/0xc0
[  655.932836]  ? debug_check_no_locks_freed+0x310/0x310
[  655.938021]  ? debug_check_no_locks_freed+0x310/0x310
[  655.943203]  ? __lock_acquire+0x7fc/0x5020
[  655.947422]  ? print_usage_bug+0xc0/0xc0
[  655.951464]  ? lock_downgrade+0x8f0/0x8f0
[  655.955609]  ? debug_check_no_locks_freed+0x310/0x310
[  655.960789]  ? print_usage_bug+0xc0/0xc0
[  655.964834]  ? graph_lock+0x170/0x170
[  655.968623]  ? do_raw_spin_lock+0xc1/0x200
[  655.972850]  ? graph_lock+0x170/0x170
[  655.976635]  ? graph_lock+0x170/0x170
[  655.980427]  ? find_held_lock+0x36/0x1c0
[  655.984484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.990009]  ? _parse_integer+0x13b/0x190
[  655.994153]  ? graph_lock+0x170/0x170
[  655.997940]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.003462]  ? _kstrtoull+0x188/0x250
[  656.007243]  ? _parse_integer+0x190/0x190
[  656.011386]  ? graph_lock+0x170/0x170
[  656.015170]  ? lock_release+0xa30/0xa30
[  656.019132]  ? find_held_lock+0x36/0x1c0
[  656.023181]  ? lock_downgrade+0x8f0/0x8f0
[  656.027316]  ? kasan_check_read+0x11/0x20
[  656.031443]  ? rcu_is_watching+0x8c/0x150
[  656.035587]  ? pid_task+0x115/0x200
[  656.039195]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  656.043600]  ? save_stack+0xa9/0xd0
[  656.047211]  ? graph_lock+0x170/0x170
[  656.051017]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.056546]  ? proc_fail_nth_write+0x9e/0x210
[  656.061036]  ? proc_cwd_link+0x1d0/0x1d0
[  656.065086]  ? kasan_check_read+0x11/0x20
[  656.069225]  ? find_held_lock+0x36/0x1c0
[  656.073273]  _do_fork+0x291/0x12a0
[  656.076802]  ? fork_idle+0x1a0/0x1a0
[  656.080513]  ? __lock_is_held+0xb5/0x140
[  656.084574]  ? __sb_end_write+0xac/0xe0
[  656.088530]  ? vfs_write+0x2a8/0x560
[  656.092244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.097777]  ? ksys_write+0x1ae/0x260
[  656.101562]  ? __ia32_sys_read+0xb0/0xb0
[  656.105610]  ? syscall_slow_exit_work+0x500/0x500
[  656.110442]  __x64_sys_clone+0xbf/0x150
[  656.114404]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  656.119420]  do_syscall_64+0x1b9/0x820
[  656.123295]  ? syscall_return_slowpath+0x5e0/0x5e0
[  656.128213]  ? syscall_return_slowpath+0x31d/0x5e0
[  656.133137]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  656.138490]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.143321]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  656.148507] RIP: 0033:0x441519
[  656.151676] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  656.170864] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  656.178568] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  656.185832] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  656.193084] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  656.200343] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  656.207606] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  656.219550] FAULT_INJECTION: forcing a failure.
[  656.219550] name failslab, interval 1, probability 0, space 0, times 0
[  656.230802] CPU: 1 PID: 4640 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  656.237892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  656.247238] Call Trace:
[  656.249817]  dump_stack+0x1c9/0x2b4
[  656.253446]  ? dump_stack_print_info.cold.2+0x52/0x52
[  656.258623]  ? save_stack+0x43/0xd0
[  656.262234]  ? kasan_kmalloc+0xc4/0xe0
[  656.266112]  ? kasan_slab_alloc+0x12/0x20
[  656.270242]  ? kmem_cache_alloc+0x12e/0x760
[  656.274559]  ? copy_creds+0x7b/0x470
[  656.278271]  should_fail.cold.4+0xa/0x1a
[  656.282319]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  656.287420]  ? find_held_lock+0x36/0x1c0
[  656.291473]  ? find_held_lock+0x36/0x1c0
[  656.295531]  ? check_same_owner+0x340/0x340
[  656.299836]  ? rcu_is_watching+0x8c/0x150
[  656.303970]  ? rcu_note_context_switch+0x730/0x730
[  656.308887]  ? security_prepare_creds+0x94/0xc0
[  656.313552]  __should_failslab+0x124/0x180
[  656.317792]  should_failslab+0x9/0x14
[  656.321590]  kmem_cache_alloc+0x2af/0x760
[  656.325737]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  656.330762]  __delayacct_tsk_init+0x20/0x80
[  656.335094]  copy_process.part.39+0x2ba8/0x7250
[  656.339759]  ? __lock_acquire+0x7fc/0x5020
[  656.343991]  ? __lock_acquire+0x7fc/0x5020
[  656.348233]  ? __lock_acquire+0x7fc/0x5020
[  656.352472]  ? __cleanup_sighand+0x70/0x70
[  656.356710]  ? debug_check_no_locks_freed+0x310/0x310
[  656.361895]  ? debug_check_no_locks_freed+0x310/0x310
[  656.367087]  ? print_usage_bug+0xc0/0xc0
[  656.371133]  ? print_usage_bug+0xc0/0xc0
[  656.375191]  ? d_splice_alias+0x7c9/0x11f0
[  656.379408]  ? lock_downgrade+0x8f0/0x8f0
[  656.383541]  ? d_instantiate_anon+0x30/0x30
[  656.387844]  ? __lock_acquire+0x7fc/0x5020
[  656.392075]  ? print_usage_bug+0xc0/0xc0
[  656.396136]  ? debug_check_no_locks_freed+0x310/0x310
[  656.401328]  ? debug_check_no_locks_freed+0x310/0x310
[  656.406519]  ? __lock_acquire+0x7fc/0x5020
[  656.410740]  ? print_usage_bug+0xc0/0xc0
[  656.414787]  ? lock_downgrade+0x8f0/0x8f0
[  656.418927]  ? debug_check_no_locks_freed+0x310/0x310
[  656.424113]  ? print_usage_bug+0xc0/0xc0
[  656.428177]  ? graph_lock+0x170/0x170
[  656.431962]  ? do_raw_spin_lock+0xc1/0x200
[  656.436182]  ? graph_lock+0x170/0x170
[  656.439968]  ? graph_lock+0x170/0x170
[  656.443766]  ? find_held_lock+0x36/0x1c0
[  656.447813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.453335]  ? _parse_integer+0x13b/0x190
[  656.457480]  ? graph_lock+0x170/0x170
[  656.461275]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.466800]  ? _kstrtoull+0x188/0x250
[  656.470608]  ? _parse_integer+0x190/0x190
[  656.474747]  ? graph_lock+0x170/0x170
[  656.478531]  ? lock_release+0xa30/0xa30
[  656.482494]  ? find_held_lock+0x36/0x1c0
[  656.486548]  ? lock_downgrade+0x8f0/0x8f0
[  656.490697]  ? kasan_check_read+0x11/0x20
[  656.494833]  ? rcu_is_watching+0x8c/0x150
[  656.498971]  ? pid_task+0x115/0x200
[  656.502594]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  656.507000]  ? save_stack+0xa9/0xd0
[  656.510619]  ? graph_lock+0x170/0x170
[  656.514406]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.519929]  ? proc_fail_nth_write+0x9e/0x210
[  656.524413]  ? proc_cwd_link+0x1d0/0x1d0
[  656.528463]  ? kasan_check_read+0x11/0x20
[  656.532598]  ? find_held_lock+0x36/0x1c0
[  656.536646]  _do_fork+0x291/0x12a0
[  656.540177]  ? fork_idle+0x1a0/0x1a0
[  656.543882]  ? __lock_is_held+0xb5/0x140
[  656.547936]  ? __sb_end_write+0xac/0xe0
[  656.551906]  ? vfs_write+0x2a8/0x560
[  656.555607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.561131]  ? ksys_write+0x1ae/0x260
[  656.564918]  ? __ia32_sys_read+0xb0/0xb0
[  656.568964]  ? syscall_slow_exit_work+0x500/0x500
[  656.573811]  __x64_sys_clone+0xbf/0x150
[  656.577774]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  656.582780]  do_syscall_64+0x1b9/0x820
[  656.586653]  ? syscall_return_slowpath+0x5e0/0x5e0
[  656.591586]  ? syscall_return_slowpath+0x31d/0x5e0
[  656.596507]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  656.601886]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.606735]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  656.611909] RIP: 0033:0x441519
executing program
[  656.615081] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  656.634348] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  656.642049] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  656.649313] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  656.656565] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  656.663820] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  656.671079] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  656.683293] FAULT_INJECTION: forcing a failure.
[  656.683293] name failslab, interval 1, probability 0, space 0, times 0
[  656.694548] CPU: 1 PID: 4642 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  656.701637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  656.710977] Call Trace:
[  656.713579]  dump_stack+0x1c9/0x2b4
[  656.717192]  ? dump_stack_print_info.cold.2+0x52/0x52
[  656.722372]  ? save_stack+0x43/0xd0
[  656.725982]  ? kasan_kmalloc+0xc4/0xe0
[  656.729857]  ? kasan_slab_alloc+0x12/0x20
[  656.733986]  ? kmem_cache_alloc+0x12e/0x760
[  656.738319]  ? copy_creds+0x7b/0x470
[  656.742032]  should_fail.cold.4+0xa/0x1a
[  656.746091]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  656.751178]  ? find_held_lock+0x36/0x1c0
[  656.755241]  ? find_held_lock+0x36/0x1c0
[  656.759295]  ? check_same_owner+0x340/0x340
[  656.763598]  ? rcu_is_watching+0x8c/0x150
[  656.767731]  ? rcu_note_context_switch+0x730/0x730
[  656.772659]  ? security_prepare_creds+0x94/0xc0
[  656.777329]  __should_failslab+0x124/0x180
[  656.781551]  should_failslab+0x9/0x14
[  656.785343]  kmem_cache_alloc+0x2af/0x760
[  656.789489]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  656.794492]  __delayacct_tsk_init+0x20/0x80
[  656.798814]  copy_process.part.39+0x2ba8/0x7250
[  656.803479]  ? __lock_acquire+0x7fc/0x5020
[  656.807701]  ? __lock_acquire+0x7fc/0x5020
[  656.811919]  ? __lock_acquire+0x7fc/0x5020
[  656.816154]  ? __cleanup_sighand+0x70/0x70
[  656.820373]  ? debug_check_no_locks_freed+0x310/0x310
[  656.825556]  ? debug_check_no_locks_freed+0x310/0x310
[  656.830742]  ? print_usage_bug+0xc0/0xc0
[  656.834788]  ? print_usage_bug+0xc0/0xc0
[  656.838839]  ? d_splice_alias+0x7c9/0x11f0
[  656.843061]  ? lock_downgrade+0x8f0/0x8f0
[  656.847195]  ? d_instantiate_anon+0x30/0x30
[  656.851509]  ? __lock_acquire+0x7fc/0x5020
[  656.855730]  ? print_usage_bug+0xc0/0xc0
[  656.859788]  ? debug_check_no_locks_freed+0x310/0x310
[  656.864967]  ? debug_check_no_locks_freed+0x310/0x310
[  656.870144]  ? __lock_acquire+0x7fc/0x5020
[  656.874363]  ? print_usage_bug+0xc0/0xc0
[  656.878408]  ? lock_downgrade+0x8f0/0x8f0
[  656.882545]  ? debug_check_no_locks_freed+0x310/0x310
[  656.887720]  ? print_usage_bug+0xc0/0xc0
[  656.891764]  ? graph_lock+0x170/0x170
[  656.895551]  ? do_raw_spin_lock+0xc1/0x200
[  656.899783]  ? graph_lock+0x170/0x170
[  656.903577]  ? graph_lock+0x170/0x170
[  656.907364]  ? find_held_lock+0x36/0x1c0
[  656.911419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.916942]  ? _parse_integer+0x13b/0x190
[  656.921084]  ? graph_lock+0x170/0x170
[  656.924868]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.930388]  ? _kstrtoull+0x188/0x250
[  656.934172]  ? _parse_integer+0x190/0x190
[  656.938305]  ? graph_lock+0x170/0x170
[  656.942102]  ? lock_release+0xa30/0xa30
[  656.946064]  ? find_held_lock+0x36/0x1c0
[  656.950112]  ? lock_downgrade+0x8f0/0x8f0
[  656.954257]  ? kasan_check_read+0x11/0x20
[  656.958388]  ? rcu_is_watching+0x8c/0x150
[  656.962529]  ? pid_task+0x115/0x200
[  656.966158]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  656.970557]  ? save_stack+0xa9/0xd0
[  656.974253]  ? graph_lock+0x170/0x170
[  656.978049]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  656.983577]  ? proc_fail_nth_write+0x9e/0x210
[  656.988064]  ? proc_cwd_link+0x1d0/0x1d0
[  656.992122]  ? kasan_check_read+0x11/0x20
[  656.996267]  ? find_held_lock+0x36/0x1c0
[  657.000318]  _do_fork+0x291/0x12a0
[  657.003845]  ? fork_idle+0x1a0/0x1a0
[  657.007554]  ? __lock_is_held+0xb5/0x140
[  657.011603]  ? __sb_end_write+0xac/0xe0
[  657.015570]  ? vfs_write+0x2a8/0x560
[  657.019269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.024790]  ? ksys_write+0x1ae/0x260
[  657.028585]  ? __ia32_sys_read+0xb0/0xb0
[  657.032645]  ? syscall_slow_exit_work+0x500/0x500
[  657.037471]  __x64_sys_clone+0xbf/0x150
[  657.041443]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  657.046456]  do_syscall_64+0x1b9/0x820
[  657.050328]  ? syscall_return_slowpath+0x5e0/0x5e0
[  657.055245]  ? syscall_return_slowpath+0x31d/0x5e0
[  657.060166]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  657.065517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  657.070352]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  657.075526] RIP: 0033:0x441519
[  657.078706] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  657.097913] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  657.105614] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  657.112883] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  657.120150] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  657.127426] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  657.134691] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  657.146741] FAULT_INJECTION: forcing a failure.
[  657.146741] name failslab, interval 1, probability 0, space 0, times 0
[  657.158015] CPU: 1 PID: 4644 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  657.165122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  657.174459] Call Trace:
[  657.177052]  dump_stack+0x1c9/0x2b4
[  657.180679]  ? dump_stack_print_info.cold.2+0x52/0x52
[  657.185860]  ? save_stack+0x43/0xd0
[  657.189469]  ? kasan_kmalloc+0xc4/0xe0
[  657.193353]  ? kasan_slab_alloc+0x12/0x20
[  657.198350]  ? kmem_cache_alloc+0x12e/0x760
[  657.202660]  ? copy_creds+0x7b/0x470
[  657.206364]  should_fail.cold.4+0xa/0x1a
[  657.210411]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.215500]  ? find_held_lock+0x36/0x1c0
[  657.219564]  ? find_held_lock+0x36/0x1c0
[  657.223618]  ? check_same_owner+0x340/0x340
[  657.227936]  ? rcu_is_watching+0x8c/0x150
[  657.232082]  ? rcu_note_context_switch+0x730/0x730
[  657.236995]  ? security_prepare_creds+0x94/0xc0
[  657.241670]  __should_failslab+0x124/0x180
[  657.245900]  should_failslab+0x9/0x14
[  657.249686]  kmem_cache_alloc+0x2af/0x760
[  657.253821]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  657.258830]  __delayacct_tsk_init+0x20/0x80
[  657.263159]  copy_process.part.39+0x2ba8/0x7250
[  657.267814]  ? __lock_acquire+0x7fc/0x5020
[  657.272044]  ? __lock_acquire+0x7fc/0x5020
[  657.276278]  ? __lock_acquire+0x7fc/0x5020
[  657.280513]  ? __cleanup_sighand+0x70/0x70
[  657.284732]  ? debug_check_no_locks_freed+0x310/0x310
[  657.289906]  ? debug_check_no_locks_freed+0x310/0x310
[  657.295080]  ? print_usage_bug+0xc0/0xc0
[  657.299128]  ? print_usage_bug+0xc0/0xc0
[  657.303175]  ? d_splice_alias+0x7c9/0x11f0
[  657.307400]  ? lock_downgrade+0x8f0/0x8f0
[  657.311529]  ? d_instantiate_anon+0x30/0x30
[  657.315834]  ? __lock_acquire+0x7fc/0x5020
[  657.320058]  ? print_usage_bug+0xc0/0xc0
[  657.324107]  ? debug_check_no_locks_freed+0x310/0x310
[  657.329298]  ? debug_check_no_locks_freed+0x310/0x310
[  657.334481]  ? __lock_acquire+0x7fc/0x5020
[  657.338698]  ? print_usage_bug+0xc0/0xc0
[  657.342745]  ? lock_downgrade+0x8f0/0x8f0
[  657.346882]  ? debug_check_no_locks_freed+0x310/0x310
[  657.352061]  ? print_usage_bug+0xc0/0xc0
[  657.356126]  ? graph_lock+0x170/0x170
[  657.359916]  ? do_raw_spin_lock+0xc1/0x200
[  657.364137]  ? graph_lock+0x170/0x170
[  657.367921]  ? graph_lock+0x170/0x170
[  657.371710]  ? find_held_lock+0x36/0x1c0
[  657.375770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.381295]  ? _parse_integer+0x13b/0x190
[  657.385426]  ? graph_lock+0x170/0x170
[  657.389212]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  657.394748]  ? _kstrtoull+0x188/0x250
[  657.398549]  ? _parse_integer+0x190/0x190
[  657.402691]  ? graph_lock+0x170/0x170
[  657.406476]  ? lock_release+0xa30/0xa30
[  657.410435]  ? find_held_lock+0x36/0x1c0
[  657.414502]  ? lock_downgrade+0x8f0/0x8f0
[  657.418652]  ? kasan_check_read+0x11/0x20
[  657.422789]  ? rcu_is_watching+0x8c/0x150
[  657.426924]  ? pid_task+0x115/0x200
[  657.430535]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  657.434942]  ? save_stack+0xa9/0xd0
[  657.438901]  ? graph_lock+0x170/0x170
[  657.442688]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  657.448220]  ? proc_fail_nth_write+0x9e/0x210
[  657.452715]  ? proc_cwd_link+0x1d0/0x1d0
[  657.456761]  ? kasan_check_read+0x11/0x20
[  657.460899]  ? find_held_lock+0x36/0x1c0
[  657.464969]  _do_fork+0x291/0x12a0
[  657.468516]  ? fork_idle+0x1a0/0x1a0
[  657.472216]  ? __lock_is_held+0xb5/0x140
[  657.476268]  ? __sb_end_write+0xac/0xe0
[  657.480231]  ? vfs_write+0x2a8/0x560
[  657.483970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.489508]  ? ksys_write+0x1ae/0x260
[  657.493307]  ? __ia32_sys_read+0xb0/0xb0
[  657.497362]  ? syscall_slow_exit_work+0x500/0x500
[  657.502190]  __x64_sys_clone+0xbf/0x150
[  657.506149]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  657.511160]  do_syscall_64+0x1b9/0x820
[  657.515042]  ? syscall_return_slowpath+0x5e0/0x5e0
[  657.519956]  ? syscall_return_slowpath+0x31d/0x5e0
[  657.524873]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  657.530233]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  657.535064]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  657.540238] RIP: 0033:0x441519
[  657.543404] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  657.562588] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  657.570284] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  657.577536] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  657.584796] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  657.592054] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  657.599307] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  657.611850] FAULT_INJECTION: forcing a failure.
[  657.611850] name failslab, interval 1, probability 0, space 0, times 0
[  657.623097] CPU: 1 PID: 4646 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  657.630181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  657.639528] Call Trace:
[  657.642108]  dump_stack+0x1c9/0x2b4
[  657.645722]  ? dump_stack_print_info.cold.2+0x52/0x52
[  657.650894]  ? save_stack+0x43/0xd0
[  657.654502]  ? kasan_kmalloc+0xc4/0xe0
[  657.658370]  ? kasan_slab_alloc+0x12/0x20
[  657.662504]  ? kmem_cache_alloc+0x12e/0x760
[  657.666830]  ? copy_creds+0x7b/0x470
[  657.670543]  should_fail.cold.4+0xa/0x1a
[  657.674593]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.679697]  ? find_held_lock+0x36/0x1c0
[  657.683751]  ? find_held_lock+0x36/0x1c0
[  657.687822]  ? check_same_owner+0x340/0x340
[  657.692136]  ? rcu_is_watching+0x8c/0x150
[  657.696267]  ? rcu_note_context_switch+0x730/0x730
[  657.701182]  ? security_prepare_creds+0x94/0xc0
[  657.705856]  __should_failslab+0x124/0x180
[  657.710096]  should_failslab+0x9/0x14
[  657.713879]  kmem_cache_alloc+0x2af/0x760
[  657.718016]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  657.723040]  __delayacct_tsk_init+0x20/0x80
[  657.727352]  copy_process.part.39+0x2ba8/0x7250
[  657.732012]  ? __lock_acquire+0x7fc/0x5020
[  657.736240]  ? __lock_acquire+0x7fc/0x5020
[  657.740462]  ? __lock_acquire+0x7fc/0x5020
[  657.744693]  ? __cleanup_sighand+0x70/0x70
[  657.748912]  ? debug_check_no_locks_freed+0x310/0x310
[  657.754099]  ? debug_check_no_locks_freed+0x310/0x310
[  657.759298]  ? print_usage_bug+0xc0/0xc0
[  657.763368]  ? print_usage_bug+0xc0/0xc0
[  657.767422]  ? d_splice_alias+0x7c9/0x11f0
[  657.771666]  ? lock_downgrade+0x8f0/0x8f0
[  657.775801]  ? d_instantiate_anon+0x30/0x30
[  657.780109]  ? __lock_acquire+0x7fc/0x5020
[  657.784331]  ? print_usage_bug+0xc0/0xc0
[  657.788384]  ? debug_check_no_locks_freed+0x310/0x310
[  657.793572]  ? debug_check_no_locks_freed+0x310/0x310
[  657.798750]  ? __lock_acquire+0x7fc/0x5020
[  657.802981]  ? print_usage_bug+0xc0/0xc0
[  657.807049]  ? lock_downgrade+0x8f0/0x8f0
[  657.811187]  ? debug_check_no_locks_freed+0x310/0x310
[  657.816362]  ? print_usage_bug+0xc0/0xc0
[  657.820406]  ? graph_lock+0x170/0x170
[  657.824188]  ? do_raw_spin_lock+0xc1/0x200
[  657.828419]  ? graph_lock+0x170/0x170
[  657.832209]  ? graph_lock+0x170/0x170
[  657.835996]  ? find_held_lock+0x36/0x1c0
[  657.840058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.845582]  ? _parse_integer+0x13b/0x190
[  657.849713]  ? graph_lock+0x170/0x170
[  657.853508]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  657.859041]  ? _kstrtoull+0x188/0x250
[  657.862841]  ? _parse_integer+0x190/0x190
[  657.866976]  ? graph_lock+0x170/0x170
[  657.870771]  ? lock_release+0xa30/0xa30
[  657.874734]  ? find_held_lock+0x36/0x1c0
[  657.878784]  ? lock_downgrade+0x8f0/0x8f0
[  657.882927]  ? kasan_check_read+0x11/0x20
[  657.887071]  ? rcu_is_watching+0x8c/0x150
[  657.891223]  ? pid_task+0x115/0x200
[  657.894850]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  657.899256]  ? save_stack+0xa9/0xd0
[  657.902875]  ? graph_lock+0x170/0x170
[  657.906663]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  657.912199]  ? proc_fail_nth_write+0x9e/0x210
[  657.916703]  ? proc_cwd_link+0x1d0/0x1d0
[  657.920774]  ? kasan_check_read+0x11/0x20
[  657.924932]  ? find_held_lock+0x36/0x1c0
[  657.928995]  _do_fork+0x291/0x12a0
[  657.932530]  ? fork_idle+0x1a0/0x1a0
[  657.936227]  ? __lock_is_held+0xb5/0x140
[  657.940291]  ? __sb_end_write+0xac/0xe0
[  657.944260]  ? vfs_write+0x2a8/0x560
[  657.947977]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.953498]  ? ksys_write+0x1ae/0x260
[  657.957283]  ? __ia32_sys_read+0xb0/0xb0
[  657.961348]  ? syscall_slow_exit_work+0x500/0x500
[  657.966190]  __x64_sys_clone+0xbf/0x150
[  657.970161]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  657.975178]  do_syscall_64+0x1b9/0x820
[  657.979056]  ? syscall_return_slowpath+0x5e0/0x5e0
[  657.983990]  ? syscall_return_slowpath+0x31d/0x5e0
[  657.988912]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  657.994267]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  657.999099]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  658.004276] RIP: 0033:0x441519
[  658.007445] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  658.026629] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  658.034337] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  658.041598] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  658.048868] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  658.056126] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  658.063395] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  658.077095] FAULT_INJECTION: forcing a failure.
[  658.077095] name failslab, interval 1, probability 0, space 0, times 0
[  658.088345] CPU: 0 PID: 4648 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  658.095426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  658.104780] Call Trace:
[  658.107360]  dump_stack+0x1c9/0x2b4
[  658.110985]  ? dump_stack_print_info.cold.2+0x52/0x52
[  658.116165]  ? save_stack+0x43/0xd0
[  658.119785]  ? kasan_kmalloc+0xc4/0xe0
[  658.123665]  ? kasan_slab_alloc+0x12/0x20
[  658.127797]  ? kmem_cache_alloc+0x12e/0x760
[  658.132125]  ? copy_creds+0x7b/0x470
[  658.135831]  should_fail.cold.4+0xa/0x1a
[  658.139901]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  658.144994]  ? find_held_lock+0x36/0x1c0
[  658.149057]  ? find_held_lock+0x36/0x1c0
[  658.153122]  ? check_same_owner+0x340/0x340
[  658.157430]  ? rcu_is_watching+0x8c/0x150
[  658.161582]  ? rcu_note_context_switch+0x730/0x730
[  658.166507]  ? security_prepare_creds+0x94/0xc0
[  658.171162]  __should_failslab+0x124/0x180
[  658.175384]  should_failslab+0x9/0x14
[  658.179172]  kmem_cache_alloc+0x2af/0x760
[  658.183305]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  658.188329]  __delayacct_tsk_init+0x20/0x80
[  658.192639]  copy_process.part.39+0x2ba8/0x7250
[  658.197299]  ? __lock_acquire+0x7fc/0x5020
[  658.201523]  ? __lock_acquire+0x7fc/0x5020
[  658.205745]  ? __lock_acquire+0x7fc/0x5020
[  658.209968]  ? __cleanup_sighand+0x70/0x70
[  658.214196]  ? debug_check_no_locks_freed+0x310/0x310
[  658.219377]  ? debug_check_no_locks_freed+0x310/0x310
[  658.224557]  ? print_usage_bug+0xc0/0xc0
[  658.228602]  ? print_usage_bug+0xc0/0xc0
[  658.232654]  ? d_splice_alias+0x7c9/0x11f0
[  658.236875]  ? lock_downgrade+0x8f0/0x8f0
[  658.241005]  ? d_instantiate_anon+0x30/0x30
[  658.245317]  ? __lock_acquire+0x7fc/0x5020
[  658.249536]  ? print_usage_bug+0xc0/0xc0
[  658.253594]  ? debug_check_no_locks_freed+0x310/0x310
[  658.258771]  ? debug_check_no_locks_freed+0x310/0x310
[  658.263958]  ? __lock_acquire+0x7fc/0x5020
[  658.268178]  ? print_usage_bug+0xc0/0xc0
[  658.272221]  ? lock_downgrade+0x8f0/0x8f0
[  658.276359]  ? debug_check_no_locks_freed+0x310/0x310
[  658.281546]  ? print_usage_bug+0xc0/0xc0
[  658.285609]  ? graph_lock+0x170/0x170
[  658.289405]  ? do_raw_spin_lock+0xc1/0x200
[  658.293632]  ? graph_lock+0x170/0x170
[  658.297435]  ? graph_lock+0x170/0x170
[  658.301224]  ? find_held_lock+0x36/0x1c0
[  658.305272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.310799]  ? _parse_integer+0x13b/0x190
[  658.314932]  ? graph_lock+0x170/0x170
[  658.318729]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  658.324246]  ? _kstrtoull+0x188/0x250
[  658.328035]  ? _parse_integer+0x190/0x190
[  658.332171]  ? graph_lock+0x170/0x170
[  658.335954]  ? lock_release+0xa30/0xa30
[  658.339920]  ? find_held_lock+0x36/0x1c0
[  658.343968]  ? lock_downgrade+0x8f0/0x8f0
[  658.348102]  ? kasan_check_read+0x11/0x20
[  658.352238]  ? rcu_is_watching+0x8c/0x150
[  658.356371]  ? pid_task+0x115/0x200
[  658.359980]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  658.365103]  ? save_stack+0xa9/0xd0
[  658.368724]  ? graph_lock+0x170/0x170
[  658.372515]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  658.378042]  ? proc_fail_nth_write+0x9e/0x210
[  658.382536]  ? proc_cwd_link+0x1d0/0x1d0
[  658.386582]  ? kasan_check_read+0x11/0x20
[  658.390717]  ? find_held_lock+0x36/0x1c0
[  658.394767]  _do_fork+0x291/0x12a0
[  658.398307]  ? fork_idle+0x1a0/0x1a0
[  658.402009]  ? __lock_is_held+0xb5/0x140
[  658.406067]  ? __sb_end_write+0xac/0xe0
[  658.410031]  ? vfs_write+0x2a8/0x560
[  658.413744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.419261]  ? ksys_write+0x1ae/0x260
[  658.423049]  ? __ia32_sys_read+0xb0/0xb0
[  658.427097]  ? syscall_slow_exit_work+0x500/0x500
[  658.431932]  __x64_sys_clone+0xbf/0x150
[  658.435888]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  658.440890]  do_syscall_64+0x1b9/0x820
[  658.444759]  ? syscall_return_slowpath+0x5e0/0x5e0
[  658.449680]  ? syscall_return_slowpath+0x31d/0x5e0
[  658.454607]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  658.459955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  658.464789]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  658.469971] RIP: 0033:0x441519
[  658.473140] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  658.492310] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  658.500007] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  658.507268] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  658.514530] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  658.521790] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  658.529045] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  658.541438] FAULT_INJECTION: forcing a failure.
[  658.541438] name failslab, interval 1, probability 0, space 0, times 0
[  658.552690] CPU: 1 PID: 4650 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  658.559781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  658.569123] Call Trace:
[  658.571715]  dump_stack+0x1c9/0x2b4
[  658.575338]  ? dump_stack_print_info.cold.2+0x52/0x52
[  658.580516]  ? save_stack+0x43/0xd0
[  658.584130]  ? kasan_kmalloc+0xc4/0xe0
[  658.588000]  ? kasan_slab_alloc+0x12/0x20
[  658.592138]  ? kmem_cache_alloc+0x12e/0x760
[  658.596446]  ? copy_creds+0x7b/0x470
[  658.600152]  should_fail.cold.4+0xa/0x1a
[  658.604212]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  658.609299]  ? find_held_lock+0x36/0x1c0
[  658.613352]  ? find_held_lock+0x36/0x1c0
[  658.617407]  ? check_same_owner+0x340/0x340
[  658.621726]  ? rcu_is_watching+0x8c/0x150
[  658.625873]  ? rcu_note_context_switch+0x730/0x730
[  658.630804]  ? security_prepare_creds+0x94/0xc0
[  658.635477]  __should_failslab+0x124/0x180
[  658.639700]  should_failslab+0x9/0x14
[  658.643492]  kmem_cache_alloc+0x2af/0x760
[  658.647627]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  658.652651]  __delayacct_tsk_init+0x20/0x80
[  658.656971]  copy_process.part.39+0x2ba8/0x7250
[  658.661629]  ? __lock_acquire+0x7fc/0x5020
[  658.665851]  ? __lock_acquire+0x7fc/0x5020
[  658.670073]  ? __lock_acquire+0x7fc/0x5020
[  658.674297]  ? __cleanup_sighand+0x70/0x70
[  658.678517]  ? debug_check_no_locks_freed+0x310/0x310
[  658.683690]  ? debug_check_no_locks_freed+0x310/0x310
[  658.688865]  ? print_usage_bug+0xc0/0xc0
[  658.692926]  ? print_usage_bug+0xc0/0xc0
[  658.696971]  ? d_splice_alias+0x7c9/0x11f0
[  658.701191]  ? lock_downgrade+0x8f0/0x8f0
[  658.705321]  ? d_instantiate_anon+0x30/0x30
[  658.709627]  ? __lock_acquire+0x7fc/0x5020
[  658.713846]  ? print_usage_bug+0xc0/0xc0
[  658.717908]  ? debug_check_no_locks_freed+0x310/0x310
[  658.723098]  ? debug_check_no_locks_freed+0x310/0x310
[  658.728277]  ? __lock_acquire+0x7fc/0x5020
[  658.732493]  ? print_usage_bug+0xc0/0xc0
[  658.736547]  ? lock_downgrade+0x8f0/0x8f0
[  658.740704]  ? debug_check_no_locks_freed+0x310/0x310
[  658.745876]  ? print_usage_bug+0xc0/0xc0
[  658.749941]  ? graph_lock+0x170/0x170
[  658.753723]  ? do_raw_spin_lock+0xc1/0x200
[  658.757942]  ? graph_lock+0x170/0x170
[  658.761729]  ? graph_lock+0x170/0x170
[  658.765527]  ? find_held_lock+0x36/0x1c0
[  658.769573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.775106]  ? _parse_integer+0x13b/0x190
[  658.779249]  ? graph_lock+0x170/0x170
[  658.783050]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  658.788584]  ? _kstrtoull+0x188/0x250
[  658.792380]  ? _parse_integer+0x190/0x190
[  658.796523]  ? graph_lock+0x170/0x170
[  658.800305]  ? lock_release+0xa30/0xa30
[  658.804266]  ? find_held_lock+0x36/0x1c0
[  658.808314]  ? lock_downgrade+0x8f0/0x8f0
[  658.812461]  ? kasan_check_read+0x11/0x20
[  658.816689]  ? rcu_is_watching+0x8c/0x150
[  658.820831]  ? pid_task+0x115/0x200
[  658.824442]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  658.828837]  ? save_stack+0xa9/0xd0
[  658.832451]  ? graph_lock+0x170/0x170
[  658.836248]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  658.841787]  ? proc_fail_nth_write+0x9e/0x210
[  658.846269]  ? proc_cwd_link+0x1d0/0x1d0
[  658.850313]  ? kasan_check_read+0x11/0x20
[  658.854446]  ? find_held_lock+0x36/0x1c0
[  658.858497]  _do_fork+0x291/0x12a0
[  658.862038]  ? fork_idle+0x1a0/0x1a0
[  658.865740]  ? __lock_is_held+0xb5/0x140
[  658.869808]  ? __sb_end_write+0xac/0xe0
[  658.873767]  ? vfs_write+0x2a8/0x560
[  658.877469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.882998]  ? ksys_write+0x1ae/0x260
[  658.886793]  ? __ia32_sys_read+0xb0/0xb0
[  658.890858]  ? syscall_slow_exit_work+0x500/0x500
[  658.895693]  __x64_sys_clone+0xbf/0x150
[  658.899661]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  658.904675]  do_syscall_64+0x1b9/0x820
[  658.908558]  ? syscall_return_slowpath+0x5e0/0x5e0
[  658.913480]  ? syscall_return_slowpath+0x31d/0x5e0
[  658.918395]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  658.923742]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  658.928575]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  658.933759] RIP: 0033:0x441519
[  658.936936] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  658.956145] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  658.963850] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  658.971107] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  658.978359] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  658.985612] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  658.992864] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  659.005909] FAULT_INJECTION: forcing a failure.
[  659.005909] name failslab, interval 1, probability 0, space 0, times 0
[  659.017157] CPU: 0 PID: 4652 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  659.024242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  659.033574] Call Trace:
[  659.036165]  dump_stack+0x1c9/0x2b4
[  659.039777]  ? dump_stack_print_info.cold.2+0x52/0x52
[  659.044955]  ? save_stack+0x43/0xd0
[  659.048564]  ? kasan_kmalloc+0xc4/0xe0
[  659.052433]  ? kasan_slab_alloc+0x12/0x20
[  659.056562]  ? kmem_cache_alloc+0x12e/0x760
[  659.060869]  ? copy_creds+0x7b/0x470
[  659.064570]  should_fail.cold.4+0xa/0x1a
[  659.068615]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  659.073721]  ? find_held_lock+0x36/0x1c0
[  659.077781]  ? find_held_lock+0x36/0x1c0
[  659.081845]  ? check_same_owner+0x340/0x340
[  659.086148]  ? rcu_is_watching+0x8c/0x150
[  659.090281]  ? rcu_note_context_switch+0x730/0x730
[  659.095210]  ? security_prepare_creds+0x94/0xc0
[  659.099874]  __should_failslab+0x124/0x180
[  659.104107]  should_failslab+0x9/0x14
[  659.107896]  kmem_cache_alloc+0x2af/0x760
[  659.112034]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  659.117049]  __delayacct_tsk_init+0x20/0x80
[  659.121357]  copy_process.part.39+0x2ba8/0x7250
[  659.126021]  ? __lock_acquire+0x7fc/0x5020
[  659.130246]  ? __lock_acquire+0x7fc/0x5020
[  659.134467]  ? __lock_acquire+0x7fc/0x5020
[  659.138710]  ? __cleanup_sighand+0x70/0x70
[  659.142948]  ? debug_check_no_locks_freed+0x310/0x310
[  659.148122]  ? debug_check_no_locks_freed+0x310/0x310
[  659.153295]  ? print_usage_bug+0xc0/0xc0
[  659.157339]  ? print_usage_bug+0xc0/0xc0
[  659.161386]  ? d_splice_alias+0x7c9/0x11f0
[  659.165601]  ? lock_downgrade+0x8f0/0x8f0
[  659.169729]  ? d_instantiate_anon+0x30/0x30
[  659.174039]  ? __lock_acquire+0x7fc/0x5020
[  659.178272]  ? print_usage_bug+0xc0/0xc0
[  659.182318]  ? debug_check_no_locks_freed+0x310/0x310
[  659.187504]  ? debug_check_no_locks_freed+0x310/0x310
[  659.192678]  ? __lock_acquire+0x7fc/0x5020
[  659.196908]  ? print_usage_bug+0xc0/0xc0
[  659.200951]  ? lock_downgrade+0x8f0/0x8f0
[  659.205087]  ? debug_check_no_locks_freed+0x310/0x310
[  659.210259]  ? print_usage_bug+0xc0/0xc0
[  659.214321]  ? graph_lock+0x170/0x170
[  659.218119]  ? do_raw_spin_lock+0xc1/0x200
[  659.222358]  ? graph_lock+0x170/0x170
[  659.226144]  ? graph_lock+0x170/0x170
[  659.229931]  ? find_held_lock+0x36/0x1c0
[  659.233985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.239522]  ? _parse_integer+0x13b/0x190
[  659.243674]  ? graph_lock+0x170/0x170
[  659.247466]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  659.252984]  ? _kstrtoull+0x188/0x250
[  659.256768]  ? _parse_integer+0x190/0x190
[  659.260900]  ? graph_lock+0x170/0x170
[  659.264692]  ? lock_release+0xa30/0xa30
[  659.268659]  ? find_held_lock+0x36/0x1c0
[  659.272712]  ? lock_downgrade+0x8f0/0x8f0
[  659.276855]  ? kasan_check_read+0x11/0x20
[  659.280984]  ? rcu_is_watching+0x8c/0x150
[  659.285127]  ? pid_task+0x115/0x200
[  659.288863]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  659.293351]  ? save_stack+0xa9/0xd0
[  659.296970]  ? graph_lock+0x170/0x170
[  659.300758]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  659.306277]  ? proc_fail_nth_write+0x9e/0x210
[  659.310756]  ? proc_cwd_link+0x1d0/0x1d0
[  659.314813]  ? kasan_check_read+0x11/0x20
[  659.318944]  ? find_held_lock+0x36/0x1c0
[  659.322996]  _do_fork+0x291/0x12a0
[  659.326532]  ? fork_idle+0x1a0/0x1a0
[  659.330230]  ? __lock_is_held+0xb5/0x140
[  659.334278]  ? retint_kernel+0x10/0x10
[  659.338150]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  659.343172]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  659.347928]  ? retint_kernel+0x10/0x10
[  659.351816]  __x64_sys_clone+0xbf/0x150
[  659.355791]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  659.360794]  do_syscall_64+0x1b9/0x820
[  659.364684]  ? syscall_return_slowpath+0x5e0/0x5e0
[  659.369614]  ? syscall_return_slowpath+0x31d/0x5e0
[  659.374535]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  659.379885]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  659.384726]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  659.389901] RIP: 0033:0x441519
[  659.393069] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  659.412264] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  659.419963] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  659.427230] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  659.434480] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  659.441731] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  659.448993] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  659.461259] FAULT_INJECTION: forcing a failure.
[  659.461259] name failslab, interval 1, probability 0, space 0, times 0
[  659.472495] CPU: 1 PID: 4654 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  659.479600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  659.488955] Call Trace:
[  659.491535]  dump_stack+0x1c9/0x2b4
[  659.495162]  ? dump_stack_print_info.cold.2+0x52/0x52
[  659.500350]  ? save_stack+0x43/0xd0
[  659.503960]  ? kasan_kmalloc+0xc4/0xe0
[  659.507835]  ? kasan_slab_alloc+0x12/0x20
[  659.511974]  ? kmem_cache_alloc+0x12e/0x760
[  659.516280]  ? copy_creds+0x7b/0x470
[  659.519991]  should_fail.cold.4+0xa/0x1a
[  659.524057]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  659.529170]  ? find_held_lock+0x36/0x1c0
[  659.533236]  ? find_held_lock+0x36/0x1c0
[  659.537294]  ? check_same_owner+0x340/0x340
[  659.541601]  ? rcu_is_watching+0x8c/0x150
[  659.545734]  ? rcu_note_context_switch+0x730/0x730
[  659.550649]  ? security_prepare_creds+0x94/0xc0
[  659.555314]  __should_failslab+0x124/0x180
[  659.559536]  should_failslab+0x9/0x14
[  659.563320]  kmem_cache_alloc+0x2af/0x760
[  659.567453]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  659.572476]  __delayacct_tsk_init+0x20/0x80
[  659.576783]  copy_process.part.39+0x2ba8/0x7250
[  659.581438]  ? __lock_acquire+0x7fc/0x5020
[  659.585658]  ? __lock_acquire+0x7fc/0x5020
[  659.589876]  ? __lock_acquire+0x7fc/0x5020
[  659.594100]  ? __cleanup_sighand+0x70/0x70
[  659.598329]  ? debug_check_no_locks_freed+0x310/0x310
[  659.603510]  ? debug_check_no_locks_freed+0x310/0x310
[  659.608683]  ? print_usage_bug+0xc0/0xc0
[  659.612729]  ? print_usage_bug+0xc0/0xc0
[  659.616779]  ? d_splice_alias+0x7c9/0x11f0
[  659.621005]  ? lock_downgrade+0x8f0/0x8f0
[  659.625144]  ? d_instantiate_anon+0x30/0x30
[  659.629451]  ? __lock_acquire+0x7fc/0x5020
[  659.633678]  ? print_usage_bug+0xc0/0xc0
[  659.637734]  ? debug_check_no_locks_freed+0x310/0x310
[  659.642908]  ? debug_check_no_locks_freed+0x310/0x310
[  659.648086]  ? __lock_acquire+0x7fc/0x5020
[  659.652302]  ? print_usage_bug+0xc0/0xc0
[  659.656354]  ? lock_downgrade+0x8f0/0x8f0
[  659.660500]  ? debug_check_no_locks_freed+0x310/0x310
[  659.665674]  ? print_usage_bug+0xc0/0xc0
[  659.669726]  ? graph_lock+0x170/0x170
[  659.673516]  ? do_raw_spin_lock+0xc1/0x200
[  659.677751]  ? graph_lock+0x170/0x170
[  659.681546]  ? graph_lock+0x170/0x170
[  659.685332]  ? find_held_lock+0x36/0x1c0
[  659.689379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.694900]  ? _parse_integer+0x13b/0x190
[  659.699040]  ? graph_lock+0x170/0x170
[  659.702834]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  659.708356]  ? _kstrtoull+0x188/0x250
[  659.712143]  ? _parse_integer+0x190/0x190
[  659.716272]  ? graph_lock+0x170/0x170
[  659.720064]  ? lock_release+0xa30/0xa30
[  659.724045]  ? find_held_lock+0x36/0x1c0
[  659.728106]  ? lock_downgrade+0x8f0/0x8f0
[  659.732243]  ? kasan_check_read+0x11/0x20
[  659.736381]  ? rcu_is_watching+0x8c/0x150
[  659.740512]  ? pid_task+0x115/0x200
[  659.744126]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  659.748534]  ? save_stack+0xa9/0xd0
[  659.752157]  ? graph_lock+0x170/0x170
[  659.755945]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  659.761480]  ? proc_fail_nth_write+0x9e/0x210
[  659.765971]  ? proc_cwd_link+0x1d0/0x1d0
[  659.770037]  ? kasan_check_read+0x11/0x20
[  659.774178]  ? find_held_lock+0x36/0x1c0
[  659.778233]  _do_fork+0x291/0x12a0
[  659.781767]  ? fork_idle+0x1a0/0x1a0
[  659.785465]  ? __lock_is_held+0xb5/0x140
[  659.789514]  ? __sb_end_write+0xac/0xe0
[  659.793498]  ? vfs_write+0x2a8/0x560
[  659.797222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.802758]  ? ksys_write+0x1ae/0x260
[  659.806555]  ? __ia32_sys_read+0xb0/0xb0
[  659.810603]  ? syscall_slow_exit_work+0x500/0x500
[  659.815432]  __x64_sys_clone+0xbf/0x150
[  659.819410]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  659.824412]  do_syscall_64+0x1b9/0x820
[  659.828285]  ? syscall_return_slowpath+0x5e0/0x5e0
[  659.833205]  ? syscall_return_slowpath+0x31d/0x5e0
[  659.838129]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  659.843479]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  659.848308]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  659.853496] RIP: 0033:0x441519
[  659.856684] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  659.875903] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  659.883615] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  659.890870] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  659.898131] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  659.905399] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  659.912653] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  659.924903] FAULT_INJECTION: forcing a failure.
[  659.924903] name failslab, interval 1, probability 0, space 0, times 0
[  659.936193] CPU: 0 PID: 4656 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  659.943279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  659.952625] Call Trace:
[  659.955205]  dump_stack+0x1c9/0x2b4
[  659.958833]  ? dump_stack_print_info.cold.2+0x52/0x52
[  659.964038]  ? save_stack+0x43/0xd0
[  659.967663]  ? kasan_kmalloc+0xc4/0xe0
[  659.971544]  ? kasan_slab_alloc+0x12/0x20
[  659.975762]  ? kmem_cache_alloc+0x12e/0x760
[  659.980068]  ? copy_creds+0x7b/0x470
[  659.983781]  should_fail.cold.4+0xa/0x1a
[  659.987834]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  659.992933]  ? find_held_lock+0x36/0x1c0
[  659.996983]  ? find_held_lock+0x36/0x1c0
[  660.001045]  ? check_same_owner+0x340/0x340
[  660.005350]  ? rcu_is_watching+0x8c/0x150
[  660.009491]  ? rcu_note_context_switch+0x730/0x730
[  660.014406]  ? security_prepare_creds+0x94/0xc0
[  660.019063]  __should_failslab+0x124/0x180
[  660.023282]  should_failslab+0x9/0x14
[  660.027068]  kmem_cache_alloc+0x2af/0x760
[  660.031199]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  660.036204]  __delayacct_tsk_init+0x20/0x80
[  660.040518]  copy_process.part.39+0x2ba8/0x7250
[  660.045183]  ? __lock_acquire+0x7fc/0x5020
[  660.049415]  ? __lock_acquire+0x7fc/0x5020
[  660.053634]  ? __lock_acquire+0x7fc/0x5020
[  660.057856]  ? __cleanup_sighand+0x70/0x70
[  660.062074]  ? debug_check_no_locks_freed+0x310/0x310
[  660.067245]  ? debug_check_no_locks_freed+0x310/0x310
[  660.072415]  ? print_usage_bug+0xc0/0xc0
[  660.076460]  ? print_usage_bug+0xc0/0xc0
[  660.080507]  ? d_splice_alias+0x7c9/0x11f0
[  660.084721]  ? lock_downgrade+0x8f0/0x8f0
[  660.088852]  ? d_instantiate_anon+0x30/0x30
[  660.093179]  ? __lock_acquire+0x7fc/0x5020
[  660.097416]  ? print_usage_bug+0xc0/0xc0
[  660.101472]  ? debug_check_no_locks_freed+0x310/0x310
[  660.106645]  ? debug_check_no_locks_freed+0x310/0x310
[  660.111817]  ? __lock_acquire+0x7fc/0x5020
[  660.116039]  ? print_usage_bug+0xc0/0xc0
[  660.120093]  ? lock_downgrade+0x8f0/0x8f0
[  660.124231]  ? debug_check_no_locks_freed+0x310/0x310
[  660.129407]  ? print_usage_bug+0xc0/0xc0
[  660.133461]  ? graph_lock+0x170/0x170
[  660.137255]  ? do_raw_spin_lock+0xc1/0x200
[  660.141482]  ? graph_lock+0x170/0x170
[  660.145265]  ? graph_lock+0x170/0x170
[  660.149058]  ? find_held_lock+0x36/0x1c0
[  660.153117]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.158642]  ? _parse_integer+0x13b/0x190
[  660.162772]  ? graph_lock+0x170/0x170
[  660.166563]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  660.172086]  ? _kstrtoull+0x188/0x250
[  660.175870]  ? _parse_integer+0x190/0x190
[  660.180003]  ? graph_lock+0x170/0x170
[  660.183795]  ? lock_release+0xa30/0xa30
[  660.187771]  ? find_held_lock+0x36/0x1c0
[  660.191821]  ? lock_downgrade+0x8f0/0x8f0
[  660.195968]  ? kasan_check_read+0x11/0x20
[  660.200102]  ? rcu_is_watching+0x8c/0x150
[  660.204243]  ? pid_task+0x115/0x200
[  660.207863]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  660.212256]  ? save_stack+0xa9/0xd0
[  660.215876]  ? graph_lock+0x170/0x170
[  660.219664]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  660.225187]  ? proc_fail_nth_write+0x9e/0x210
[  660.229663]  ? proc_cwd_link+0x1d0/0x1d0
[  660.233722]  ? kasan_check_read+0x11/0x20
[  660.237856]  ? find_held_lock+0x36/0x1c0
[  660.241910]  _do_fork+0x291/0x12a0
[  660.245437]  ? fork_idle+0x1a0/0x1a0
[  660.249133]  ? __lock_is_held+0xb5/0x140
[  660.253184]  ? __sb_end_write+0xac/0xe0
[  660.257138]  ? vfs_write+0x2a8/0x560
[  660.260836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.266351]  ? ksys_write+0x1ae/0x260
[  660.270248]  ? __ia32_sys_read+0xb0/0xb0
[  660.274311]  ? syscall_slow_exit_work+0x500/0x500
[  660.279145]  __x64_sys_clone+0xbf/0x150
[  660.283112]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  660.288114]  do_syscall_64+0x1b9/0x820
[  660.292000]  ? syscall_return_slowpath+0x5e0/0x5e0
[  660.296926]  ? syscall_return_slowpath+0x31d/0x5e0
[  660.301849]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  660.307218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  660.312060]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  660.317244] RIP: 0033:0x441519
[  660.320427] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  660.339627] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  660.347323] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  660.354585] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  660.361840] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  660.369750] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  660.377009] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  660.389211] FAULT_INJECTION: forcing a failure.
[  660.389211] name failslab, interval 1, probability 0, space 0, times 0
[  660.400465] CPU: 1 PID: 4658 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  660.407554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  660.416891] Call Trace:
[  660.419484]  dump_stack+0x1c9/0x2b4
[  660.423107]  ? dump_stack_print_info.cold.2+0x52/0x52
[  660.428289]  ? save_stack+0x43/0xd0
[  660.431913]  ? kasan_kmalloc+0xc4/0xe0
[  660.435786]  ? kasan_slab_alloc+0x12/0x20
[  660.439919]  ? kmem_cache_alloc+0x12e/0x760
[  660.444229]  ? copy_creds+0x7b/0x470
[  660.447948]  should_fail.cold.4+0xa/0x1a
[  660.451999]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  660.457099]  ? find_held_lock+0x36/0x1c0
[  660.461164]  ? find_held_lock+0x36/0x1c0
[  660.465220]  ? check_same_owner+0x340/0x340
[  660.469538]  ? rcu_is_watching+0x8c/0x150
[  660.473674]  ? rcu_note_context_switch+0x730/0x730
[  660.478610]  ? security_prepare_creds+0x94/0xc0
[  660.483286]  __should_failslab+0x124/0x180
[  660.487524]  should_failslab+0x9/0x14
[  660.491324]  kmem_cache_alloc+0x2af/0x760
[  660.495460]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  660.500465]  __delayacct_tsk_init+0x20/0x80
[  660.504777]  copy_process.part.39+0x2ba8/0x7250
[  660.509432]  ? __lock_acquire+0x7fc/0x5020
[  660.513654]  ? __lock_acquire+0x7fc/0x5020
[  660.517874]  ? __lock_acquire+0x7fc/0x5020
[  660.522108]  ? __cleanup_sighand+0x70/0x70
[  660.526426]  ? debug_check_no_locks_freed+0x310/0x310
[  660.531602]  ? debug_check_no_locks_freed+0x310/0x310
[  660.536790]  ? print_usage_bug+0xc0/0xc0
[  660.540837]  ? print_usage_bug+0xc0/0xc0
[  660.544886]  ? d_splice_alias+0x7c9/0x11f0
[  660.549117]  ? lock_downgrade+0x8f0/0x8f0
[  660.553250]  ? d_instantiate_anon+0x30/0x30
[  660.557557]  ? __lock_acquire+0x7fc/0x5020
[  660.561782]  ? print_usage_bug+0xc0/0xc0
[  660.565828]  ? debug_check_no_locks_freed+0x310/0x310
[  660.571010]  ? debug_check_no_locks_freed+0x310/0x310
[  660.576199]  ? __lock_acquire+0x7fc/0x5020
[  660.580415]  ? print_usage_bug+0xc0/0xc0
[  660.584463]  ? lock_downgrade+0x8f0/0x8f0
[  660.588601]  ? debug_check_no_locks_freed+0x310/0x310
[  660.593774]  ? print_usage_bug+0xc0/0xc0
[  660.597818]  ? graph_lock+0x170/0x170
[  660.601602]  ? do_raw_spin_lock+0xc1/0x200
[  660.605823]  ? graph_lock+0x170/0x170
[  660.609609]  ? graph_lock+0x170/0x170
[  660.613395]  ? find_held_lock+0x36/0x1c0
[  660.617441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.622985]  ? _parse_integer+0x13b/0x190
[  660.627121]  ? graph_lock+0x170/0x170
[  660.630913]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  660.636435]  ? _kstrtoull+0x188/0x250
[  660.640227]  ? _parse_integer+0x190/0x190
[  660.644367]  ? graph_lock+0x170/0x170
[  660.648151]  ? lock_release+0xa30/0xa30
[  660.652112]  ? find_held_lock+0x36/0x1c0
[  660.656162]  ? lock_downgrade+0x8f0/0x8f0
[  660.660297]  ? kasan_check_read+0x11/0x20
[  660.664439]  ? rcu_is_watching+0x8c/0x150
[  660.668571]  ? pid_task+0x115/0x200
[  660.672202]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  660.676612]  ? save_stack+0xa9/0xd0
[  660.680235]  ? graph_lock+0x170/0x170
[  660.684036]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  660.689573]  ? proc_fail_nth_write+0x9e/0x210
[  660.694070]  ? proc_cwd_link+0x1d0/0x1d0
[  660.698118]  ? kasan_check_read+0x11/0x20
[  660.702250]  ? find_held_lock+0x36/0x1c0
[  660.706324]  _do_fork+0x291/0x12a0
[  660.709852]  ? fork_idle+0x1a0/0x1a0
[  660.713551]  ? __lock_is_held+0xb5/0x140
[  660.717614]  ? __sb_end_write+0xac/0xe0
[  660.721573]  ? vfs_write+0x2a8/0x560
[  660.725272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.730810]  ? ksys_write+0x1ae/0x260
[  660.734599]  ? __ia32_sys_read+0xb0/0xb0
[  660.738667]  ? syscall_slow_exit_work+0x500/0x500
[  660.743515]  __x64_sys_clone+0xbf/0x150
[  660.747479]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  660.752479]  do_syscall_64+0x1b9/0x820
[  660.756352]  ? syscall_return_slowpath+0x5e0/0x5e0
[  660.761265]  ? syscall_return_slowpath+0x31d/0x5e0
[  660.766183]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  660.771540]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  660.776373]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  660.781547] RIP: 0033:0x441519
executing program
[  660.784716] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  660.803895] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  660.811602] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  660.818856] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  660.826111] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  660.833365] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  660.840616] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  660.852573] FAULT_INJECTION: forcing a failure.
[  660.852573] name failslab, interval 1, probability 0, space 0, times 0
[  660.863851] CPU: 1 PID: 4660 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  660.870939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  660.880287] Call Trace:
[  660.882863]  dump_stack+0x1c9/0x2b4
[  660.886475]  ? dump_stack_print_info.cold.2+0x52/0x52
[  660.891671]  ? save_stack+0x43/0xd0
[  660.895278]  ? kasan_kmalloc+0xc4/0xe0
[  660.899149]  ? kasan_slab_alloc+0x12/0x20
[  660.903277]  ? kmem_cache_alloc+0x12e/0x760
[  660.907581]  ? copy_creds+0x7b/0x470
[  660.911284]  should_fail.cold.4+0xa/0x1a
[  660.915344]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  660.920437]  ? find_held_lock+0x36/0x1c0
[  660.924486]  ? find_held_lock+0x36/0x1c0
[  660.928540]  ? check_same_owner+0x340/0x340
[  660.932847]  ? rcu_is_watching+0x8c/0x150
[  660.936982]  ? rcu_note_context_switch+0x730/0x730
[  660.941914]  ? security_prepare_creds+0x94/0xc0
[  660.946587]  __should_failslab+0x124/0x180
[  660.950805]  should_failslab+0x9/0x14
[  660.954598]  kmem_cache_alloc+0x2af/0x760
[  660.958743]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  660.963762]  __delayacct_tsk_init+0x20/0x80
[  660.968078]  copy_process.part.39+0x2ba8/0x7250
[  660.972738]  ? __lock_acquire+0x7fc/0x5020
[  660.976976]  ? __lock_acquire+0x7fc/0x5020
[  660.981193]  ? __lock_acquire+0x7fc/0x5020
[  660.985416]  ? __cleanup_sighand+0x70/0x70
[  660.989634]  ? debug_check_no_locks_freed+0x310/0x310
[  660.994806]  ? debug_check_no_locks_freed+0x310/0x310
[  660.999982]  ? print_usage_bug+0xc0/0xc0
[  661.004042]  ? print_usage_bug+0xc0/0xc0
[  661.008096]  ? d_splice_alias+0x7c9/0x11f0
[  661.012325]  ? lock_downgrade+0x8f0/0x8f0
[  661.016459]  ? d_instantiate_anon+0x30/0x30
[  661.020768]  ? __lock_acquire+0x7fc/0x5020
[  661.024987]  ? print_usage_bug+0xc0/0xc0
[  661.029044]  ? debug_check_no_locks_freed+0x310/0x310
[  661.034221]  ? debug_check_no_locks_freed+0x310/0x310
[  661.039396]  ? __lock_acquire+0x7fc/0x5020
[  661.043617]  ? print_usage_bug+0xc0/0xc0
[  661.047668]  ? lock_downgrade+0x8f0/0x8f0
[  661.051811]  ? debug_check_no_locks_freed+0x310/0x310
[  661.056996]  ? print_usage_bug+0xc0/0xc0
[  661.061050]  ? graph_lock+0x170/0x170
[  661.064844]  ? do_raw_spin_lock+0xc1/0x200
[  661.069068]  ? graph_lock+0x170/0x170
[  661.072851]  ? graph_lock+0x170/0x170
[  661.076636]  ? find_held_lock+0x36/0x1c0
[  661.080691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.086216]  ? _parse_integer+0x13b/0x190
[  661.090346]  ? graph_lock+0x170/0x170
[  661.094139]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  661.099656]  ? _kstrtoull+0x188/0x250
[  661.103439]  ? _parse_integer+0x190/0x190
[  661.107577]  ? graph_lock+0x170/0x170
[  661.111359]  ? lock_release+0xa30/0xa30
[  661.115327]  ? find_held_lock+0x36/0x1c0
[  661.119381]  ? lock_downgrade+0x8f0/0x8f0
[  661.123515]  ? kasan_check_read+0x11/0x20
[  661.127644]  ? rcu_is_watching+0x8c/0x150
[  661.131775]  ? pid_task+0x115/0x200
[  661.135384]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  661.139775]  ? save_stack+0xa9/0xd0
[  661.143385]  ? graph_lock+0x170/0x170
[  661.147182]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  661.152722]  ? proc_fail_nth_write+0x9e/0x210
[  661.157218]  ? proc_cwd_link+0x1d0/0x1d0
[  661.161271]  ? kasan_check_read+0x11/0x20
[  661.165406]  ? find_held_lock+0x36/0x1c0
[  661.169465]  _do_fork+0x291/0x12a0
[  661.172991]  ? fork_idle+0x1a0/0x1a0
[  661.176713]  ? __lock_is_held+0xb5/0x140
[  661.180765]  ? __sb_end_write+0xac/0xe0
[  661.184721]  ? vfs_write+0x2a8/0x560
[  661.188421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.193948]  ? ksys_write+0x1ae/0x260
[  661.197735]  ? __ia32_sys_read+0xb0/0xb0
[  661.202633]  ? syscall_slow_exit_work+0x500/0x500
[  661.207465]  __x64_sys_clone+0xbf/0x150
[  661.211426]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  661.216426]  do_syscall_64+0x1b9/0x820
[  661.220299]  ? syscall_return_slowpath+0x5e0/0x5e0
[  661.225211]  ? syscall_return_slowpath+0x31d/0x5e0
[  661.230132]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  661.235481]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  661.240311]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  661.245488] RIP: 0033:0x441519
[  661.248665] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  661.267890] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  661.275588] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  661.282840] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  661.295650] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  661.302902] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  661.310153] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  661.321557] FAULT_INJECTION: forcing a failure.
[  661.321557] name failslab, interval 1, probability 0, space 0, times 0
[  661.332949] CPU: 1 PID: 4662 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  661.340037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  661.349373] Call Trace:
[  661.351952]  dump_stack+0x1c9/0x2b4
[  661.355569]  ? dump_stack_print_info.cold.2+0x52/0x52
[  661.360766]  ? save_stack+0x43/0xd0
[  661.364377]  ? kasan_kmalloc+0xc4/0xe0
[  661.368256]  ? kasan_slab_alloc+0x12/0x20
[  661.372387]  ? kmem_cache_alloc+0x12e/0x760
[  661.376711]  ? copy_creds+0x7b/0x470
[  661.380412]  should_fail.cold.4+0xa/0x1a
[  661.384462]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  661.389551]  ? find_held_lock+0x36/0x1c0
[  661.393602]  ? find_held_lock+0x36/0x1c0
[  661.397657]  ? check_same_owner+0x340/0x340
[  661.401980]  ? rcu_is_watching+0x8c/0x150
[  661.406111]  ? rcu_note_context_switch+0x730/0x730
[  661.411044]  ? security_prepare_creds+0x94/0xc0
[  661.415718]  __should_failslab+0x124/0x180
[  661.419945]  should_failslab+0x9/0x14
[  661.423731]  kmem_cache_alloc+0x2af/0x760
[  661.427860]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  661.432869]  __delayacct_tsk_init+0x20/0x80
[  661.437176]  copy_process.part.39+0x2ba8/0x7250
[  661.441830]  ? __lock_acquire+0x7fc/0x5020
[  661.446064]  ? __lock_acquire+0x7fc/0x5020
[  661.450302]  ? __lock_acquire+0x7fc/0x5020
[  661.454539]  ? __cleanup_sighand+0x70/0x70
[  661.458767]  ? debug_check_no_locks_freed+0x310/0x310
[  661.463941]  ? debug_check_no_locks_freed+0x310/0x310
[  661.469116]  ? print_usage_bug+0xc0/0xc0
[  661.473162]  ? print_usage_bug+0xc0/0xc0
[  661.477207]  ? d_splice_alias+0x7c9/0x11f0
[  661.481424]  ? lock_downgrade+0x8f0/0x8f0
[  661.485556]  ? d_instantiate_anon+0x30/0x30
[  661.489875]  ? __lock_acquire+0x7fc/0x5020
[  661.494101]  ? print_usage_bug+0xc0/0xc0
[  661.498150]  ? debug_check_no_locks_freed+0x310/0x310
[  661.503332]  ? debug_check_no_locks_freed+0x310/0x310
[  661.508508]  ? __lock_acquire+0x7fc/0x5020
[  661.512726]  ? print_usage_bug+0xc0/0xc0
[  661.516770]  ? lock_downgrade+0x8f0/0x8f0
[  661.520905]  ? debug_check_no_locks_freed+0x310/0x310
[  661.526082]  ? print_usage_bug+0xc0/0xc0
[  661.530127]  ? graph_lock+0x170/0x170
[  661.533910]  ? do_raw_spin_lock+0xc1/0x200
[  661.538128]  ? graph_lock+0x170/0x170
[  661.541926]  ? graph_lock+0x170/0x170
[  661.545726]  ? find_held_lock+0x36/0x1c0
[  661.549772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.555305]  ? _parse_integer+0x13b/0x190
[  661.559450]  ? graph_lock+0x170/0x170
[  661.563236]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  661.568768]  ? _kstrtoull+0x188/0x250
[  661.572562]  ? _parse_integer+0x190/0x190
[  661.576708]  ? graph_lock+0x170/0x170
[  661.580507]  ? lock_release+0xa30/0xa30
[  661.584470]  ? find_held_lock+0x36/0x1c0
[  661.588522]  ? lock_downgrade+0x8f0/0x8f0
[  661.592671]  ? kasan_check_read+0x11/0x20
[  661.596805]  ? rcu_is_watching+0x8c/0x150
[  661.600935]  ? pid_task+0x115/0x200
[  661.604547]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  661.608937]  ? save_stack+0xa9/0xd0
[  661.612547]  ? graph_lock+0x170/0x170
[  661.616340]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  661.621867]  ? proc_fail_nth_write+0x9e/0x210
[  661.626347]  ? proc_cwd_link+0x1d0/0x1d0
[  661.630406]  ? kasan_check_read+0x11/0x20
[  661.634538]  ? find_held_lock+0x36/0x1c0
[  661.638598]  _do_fork+0x291/0x12a0
[  661.642126]  ? fork_idle+0x1a0/0x1a0
[  661.645828]  ? __lock_is_held+0xb5/0x140
[  661.649879]  ? __sb_end_write+0xac/0xe0
[  661.653837]  ? vfs_write+0x2a8/0x560
[  661.657538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.663057]  ? ksys_write+0x1ae/0x260
[  661.666846]  ? __ia32_sys_read+0xb0/0xb0
[  661.670900]  ? syscall_slow_exit_work+0x500/0x500
[  661.675733]  __x64_sys_clone+0xbf/0x150
[  661.679710]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  661.684710]  do_syscall_64+0x1b9/0x820
[  661.688595]  ? syscall_return_slowpath+0x5e0/0x5e0
[  661.693511]  ? syscall_return_slowpath+0x31d/0x5e0
[  661.698430]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  661.703780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  661.708612]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  661.713788] RIP: 0033:0x441519
[  661.716964] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  661.736192] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  661.743883] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  661.751147] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  661.758412] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  661.765666] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  661.772918] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  661.784308] FAULT_INJECTION: forcing a failure.
[  661.784308] name failslab, interval 1, probability 0, space 0, times 0
[  661.795573] CPU: 1 PID: 4664 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  661.802661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  661.811997] Call Trace:
[  661.814583]  dump_stack+0x1c9/0x2b4
[  661.818197]  ? dump_stack_print_info.cold.2+0x52/0x52
[  661.823372]  ? save_stack+0x43/0xd0
[  661.826979]  ? kasan_kmalloc+0xc4/0xe0
[  661.830848]  ? kasan_slab_alloc+0x12/0x20
[  661.834979]  ? kmem_cache_alloc+0x12e/0x760
[  661.839299]  ? copy_creds+0x7b/0x470
[  661.843001]  should_fail.cold.4+0xa/0x1a
[  661.847065]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  661.852159]  ? find_held_lock+0x36/0x1c0
[  661.856210]  ? find_held_lock+0x36/0x1c0
[  661.860275]  ? check_same_owner+0x340/0x340
[  661.864587]  ? rcu_is_watching+0x8c/0x150
[  661.868720]  ? rcu_note_context_switch+0x730/0x730
[  661.873634]  ? security_prepare_creds+0x94/0xc0
[  661.878289]  __should_failslab+0x124/0x180
[  661.882517]  should_failslab+0x9/0x14
[  661.886302]  kmem_cache_alloc+0x2af/0x760
[  661.890435]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  661.895452]  __delayacct_tsk_init+0x20/0x80
[  661.899770]  copy_process.part.39+0x2ba8/0x7250
[  661.904435]  ? __lock_acquire+0x7fc/0x5020
[  661.908666]  ? __lock_acquire+0x7fc/0x5020
[  661.912994]  ? __lock_acquire+0x7fc/0x5020
[  661.917225]  ? __cleanup_sighand+0x70/0x70
[  661.921441]  ? debug_check_no_locks_freed+0x310/0x310
[  661.926624]  ? debug_check_no_locks_freed+0x310/0x310
[  661.931800]  ? print_usage_bug+0xc0/0xc0
[  661.935846]  ? print_usage_bug+0xc0/0xc0
[  661.939901]  ? d_splice_alias+0x7c9/0x11f0
[  661.944116]  ? lock_downgrade+0x8f0/0x8f0
[  661.948248]  ? d_instantiate_anon+0x30/0x30
[  661.952552]  ? __lock_acquire+0x7fc/0x5020
[  661.956773]  ? print_usage_bug+0xc0/0xc0
[  661.960829]  ? debug_check_no_locks_freed+0x310/0x310
[  661.966008]  ? debug_check_no_locks_freed+0x310/0x310
[  661.971199]  ? __lock_acquire+0x7fc/0x5020
[  661.975426]  ? print_usage_bug+0xc0/0xc0
[  661.979478]  ? lock_downgrade+0x8f0/0x8f0
[  661.983639]  ? debug_check_no_locks_freed+0x310/0x310
[  661.988818]  ? print_usage_bug+0xc0/0xc0
[  661.992862]  ? graph_lock+0x170/0x170
[  661.996653]  ? do_raw_spin_lock+0xc1/0x200
[  662.000883]  ? graph_lock+0x170/0x170
[  662.004665]  ? graph_lock+0x170/0x170
[  662.008451]  ? find_held_lock+0x36/0x1c0
[  662.012506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.018038]  ? _parse_integer+0x13b/0x190
[  662.022169]  ? graph_lock+0x170/0x170
[  662.025961]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  662.031480]  ? _kstrtoull+0x188/0x250
[  662.035262]  ? _parse_integer+0x190/0x190
[  662.039398]  ? graph_lock+0x170/0x170
[  662.043194]  ? lock_release+0xa30/0xa30
[  662.047153]  ? find_held_lock+0x36/0x1c0
[  662.051204]  ? lock_downgrade+0x8f0/0x8f0
[  662.055349]  ? kasan_check_read+0x11/0x20
[  662.059479]  ? rcu_is_watching+0x8c/0x150
[  662.063610]  ? pid_task+0x115/0x200
[  662.067226]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  662.071634]  ? save_stack+0xa9/0xd0
[  662.075253]  ? graph_lock+0x170/0x170
[  662.079049]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  662.084576]  ? proc_fail_nth_write+0x9e/0x210
[  662.089063]  ? proc_cwd_link+0x1d0/0x1d0
[  662.093121]  ? kasan_check_read+0x11/0x20
[  662.097254]  ? find_held_lock+0x36/0x1c0
[  662.101314]  _do_fork+0x291/0x12a0
[  662.104855]  ? fork_idle+0x1a0/0x1a0
[  662.108553]  ? __lock_is_held+0xb5/0x140
[  662.112611]  ? __sb_end_write+0xac/0xe0
[  662.116570]  ? vfs_write+0x2a8/0x560
[  662.120281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.125811]  ? ksys_write+0x1ae/0x260
[  662.129594]  ? __ia32_sys_read+0xb0/0xb0
[  662.133657]  ? syscall_slow_exit_work+0x500/0x500
[  662.138496]  __x64_sys_clone+0xbf/0x150
[  662.142455]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  662.147454]  do_syscall_64+0x1b9/0x820
[  662.151346]  ? syscall_return_slowpath+0x5e0/0x5e0
[  662.156258]  ? syscall_return_slowpath+0x31d/0x5e0
[  662.161186]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  662.166544]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  662.171374]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  662.176554] RIP: 0033:0x441519
[  662.179741] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  662.198925] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  662.206624] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  662.213877] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  662.221128] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  662.228386] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  662.235651] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  662.248167] FAULT_INJECTION: forcing a failure.
[  662.248167] name failslab, interval 1, probability 0, space 0, times 0
[  662.259431] CPU: 0 PID: 4666 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  662.266512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  662.275846] Call Trace:
[  662.278423]  dump_stack+0x1c9/0x2b4
[  662.282038]  ? dump_stack_print_info.cold.2+0x52/0x52
[  662.287210]  ? save_stack+0x43/0xd0
[  662.290823]  ? kasan_kmalloc+0xc4/0xe0
[  662.294691]  ? kasan_slab_alloc+0x12/0x20
[  662.298818]  ? kmem_cache_alloc+0x12e/0x760
[  662.303127]  ? copy_creds+0x7b/0x470
[  662.306829]  should_fail.cold.4+0xa/0x1a
[  662.310877]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  662.315967]  ? find_held_lock+0x36/0x1c0
[  662.320025]  ? find_held_lock+0x36/0x1c0
[  662.324086]  ? check_same_owner+0x340/0x340
[  662.328394]  ? rcu_is_watching+0x8c/0x150
[  662.332536]  ? rcu_note_context_switch+0x730/0x730
[  662.337448]  ? security_prepare_creds+0x94/0xc0
[  662.342101]  __should_failslab+0x124/0x180
[  662.346324]  should_failslab+0x9/0x14
[  662.350107]  kmem_cache_alloc+0x2af/0x760
[  662.354248]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  662.359259]  __delayacct_tsk_init+0x20/0x80
[  662.364099]  copy_process.part.39+0x2ba8/0x7250
[  662.368772]  ? __lock_acquire+0x7fc/0x5020
[  662.372994]  ? __lock_acquire+0x7fc/0x5020
[  662.377214]  ? __lock_acquire+0x7fc/0x5020
[  662.381448]  ? __cleanup_sighand+0x70/0x70
[  662.385665]  ? debug_check_no_locks_freed+0x310/0x310
[  662.390835]  ? debug_check_no_locks_freed+0x310/0x310
[  662.396010]  ? print_usage_bug+0xc0/0xc0
[  662.400075]  ? print_usage_bug+0xc0/0xc0
[  662.404121]  ? d_splice_alias+0x7c9/0x11f0
[  662.408335]  ? lock_downgrade+0x8f0/0x8f0
[  662.412475]  ? d_instantiate_anon+0x30/0x30
[  662.416792]  ? __lock_acquire+0x7fc/0x5020
[  662.421029]  ? print_usage_bug+0xc0/0xc0
[  662.425086]  ? debug_check_no_locks_freed+0x310/0x310
[  662.430266]  ? debug_check_no_locks_freed+0x310/0x310
[  662.435448]  ? __lock_acquire+0x7fc/0x5020
[  662.439667]  ? print_usage_bug+0xc0/0xc0
[  662.443711]  ? lock_downgrade+0x8f0/0x8f0
[  662.447846]  ? debug_check_no_locks_freed+0x310/0x310
[  662.453122]  ? print_usage_bug+0xc0/0xc0
[  662.457172]  ? graph_lock+0x170/0x170
[  662.460954]  ? do_raw_spin_lock+0xc1/0x200
[  662.465170]  ? graph_lock+0x170/0x170
[  662.468952]  ? graph_lock+0x170/0x170
[  662.472749]  ? find_held_lock+0x36/0x1c0
[  662.476794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.482322]  ? _parse_integer+0x13b/0x190
[  662.486463]  ? graph_lock+0x170/0x170
[  662.490245]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  662.495762]  ? _kstrtoull+0x188/0x250
[  662.499542]  ? _parse_integer+0x190/0x190
[  662.503671]  ? graph_lock+0x170/0x170
[  662.507462]  ? lock_release+0xa30/0xa30
[  662.511418]  ? find_held_lock+0x36/0x1c0
[  662.515479]  ? lock_downgrade+0x8f0/0x8f0
[  662.519641]  ? kasan_check_read+0x11/0x20
[  662.523787]  ? rcu_is_watching+0x8c/0x150
[  662.527920]  ? pid_task+0x115/0x200
[  662.531530]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  662.535921]  ? save_stack+0xa9/0xd0
[  662.539531]  ? graph_lock+0x170/0x170
[  662.543317]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  662.548848]  ? proc_fail_nth_write+0x9e/0x210
[  662.553323]  ? proc_cwd_link+0x1d0/0x1d0
[  662.557370]  ? kasan_check_read+0x11/0x20
[  662.561502]  ? find_held_lock+0x36/0x1c0
[  662.565548]  _do_fork+0x291/0x12a0
[  662.569072]  ? fork_idle+0x1a0/0x1a0
[  662.572783]  ? __lock_is_held+0xb5/0x140
[  662.576834]  ? __sb_end_write+0xac/0xe0
[  662.580790]  ? vfs_write+0x2a8/0x560
[  662.584489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.590007]  ? ksys_write+0x1ae/0x260
[  662.593809]  ? __ia32_sys_read+0xb0/0xb0
[  662.597858]  ? syscall_slow_exit_work+0x500/0x500
[  662.602685]  __x64_sys_clone+0xbf/0x150
[  662.606650]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  662.611654]  do_syscall_64+0x1b9/0x820
[  662.615526]  ? syscall_return_slowpath+0x5e0/0x5e0
[  662.620438]  ? syscall_return_slowpath+0x31d/0x5e0
[  662.625362]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  662.630712]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  662.635543]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  662.640716] RIP: 0033:0x441519
executing program
[  662.643884] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  662.663086] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  662.670785] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  662.678047] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  662.685300] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  662.692557] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  662.699810] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  662.712257] FAULT_INJECTION: forcing a failure.
[  662.712257] name failslab, interval 1, probability 0, space 0, times 0
[  662.723546] CPU: 0 PID: 4668 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  662.730627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  662.739961] Call Trace:
[  662.742536]  dump_stack+0x1c9/0x2b4
[  662.746157]  ? dump_stack_print_info.cold.2+0x52/0x52
[  662.751331]  ? save_stack+0x43/0xd0
[  662.754938]  ? kasan_kmalloc+0xc4/0xe0
[  662.758805]  ? kasan_slab_alloc+0x12/0x20
[  662.762934]  ? kmem_cache_alloc+0x12e/0x760
[  662.767254]  ? copy_creds+0x7b/0x470
[  662.770970]  should_fail.cold.4+0xa/0x1a
[  662.775038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  662.780124]  ? find_held_lock+0x36/0x1c0
[  662.784180]  ? find_held_lock+0x36/0x1c0
[  662.788234]  ? check_same_owner+0x340/0x340
[  662.792537]  ? rcu_is_watching+0x8c/0x150
[  662.796674]  ? rcu_note_context_switch+0x730/0x730
[  662.801590]  ? security_prepare_creds+0x94/0xc0
[  662.806260]  __should_failslab+0x124/0x180
[  662.810491]  should_failslab+0x9/0x14
[  662.814289]  kmem_cache_alloc+0x2af/0x760
[  662.818422]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  662.823426]  __delayacct_tsk_init+0x20/0x80
[  662.827741]  copy_process.part.39+0x2ba8/0x7250
[  662.832406]  ? __lock_acquire+0x7fc/0x5020
[  662.836634]  ? __lock_acquire+0x7fc/0x5020
[  662.840871]  ? __lock_acquire+0x7fc/0x5020
[  662.845114]  ? __cleanup_sighand+0x70/0x70
[  662.849342]  ? debug_check_no_locks_freed+0x310/0x310
[  662.854513]  ? debug_check_no_locks_freed+0x310/0x310
[  662.859686]  ? print_usage_bug+0xc0/0xc0
[  662.863732]  ? print_usage_bug+0xc0/0xc0
[  662.867788]  ? d_splice_alias+0x7c9/0x11f0
[  662.872026]  ? lock_downgrade+0x8f0/0x8f0
[  662.876163]  ? d_instantiate_anon+0x30/0x30
[  662.880476]  ? __lock_acquire+0x7fc/0x5020
[  662.884695]  ? print_usage_bug+0xc0/0xc0
[  662.888751]  ? debug_check_no_locks_freed+0x310/0x310
[  662.893937]  ? debug_check_no_locks_freed+0x310/0x310
[  662.899109]  ? __lock_acquire+0x7fc/0x5020
[  662.904802]  ? print_usage_bug+0xc0/0xc0
[  662.908856]  ? lock_downgrade+0x8f0/0x8f0
[  662.912989]  ? debug_check_no_locks_freed+0x310/0x310
[  662.918166]  ? print_usage_bug+0xc0/0xc0
[  662.922210]  ? graph_lock+0x170/0x170
[  662.925995]  ? do_raw_spin_lock+0xc1/0x200
[  662.930220]  ? graph_lock+0x170/0x170
[  662.934000]  ? graph_lock+0x170/0x170
[  662.937805]  ? find_held_lock+0x36/0x1c0
[  662.941848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.947378]  ? _parse_integer+0x13b/0x190
[  662.951518]  ? graph_lock+0x170/0x170
[  662.955301]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  662.960820]  ? _kstrtoull+0x188/0x250
[  662.964608]  ? _parse_integer+0x190/0x190
[  662.968739]  ? graph_lock+0x170/0x170
[  662.972521]  ? lock_release+0xa30/0xa30
[  662.976479]  ? find_held_lock+0x36/0x1c0
[  662.980527]  ? lock_downgrade+0x8f0/0x8f0
[  662.984663]  ? kasan_check_read+0x11/0x20
[  662.988801]  ? rcu_is_watching+0x8c/0x150
[  662.992945]  ? pid_task+0x115/0x200
[  662.996579]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  663.000973]  ? save_stack+0xa9/0xd0
[  663.004596]  ? graph_lock+0x170/0x170
[  663.008381]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  663.013901]  ? proc_fail_nth_write+0x9e/0x210
[  663.018378]  ? proc_cwd_link+0x1d0/0x1d0
[  663.022425]  ? kasan_check_read+0x11/0x20
[  663.026559]  ? find_held_lock+0x36/0x1c0
[  663.030605]  _do_fork+0x291/0x12a0
[  663.034144]  ? fork_idle+0x1a0/0x1a0
[  663.037854]  ? __lock_is_held+0xb5/0x140
[  663.041918]  ? __sb_end_write+0xac/0xe0
[  663.045872]  ? vfs_write+0x2a8/0x560
[  663.049571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.055089]  ? ksys_write+0x1ae/0x260
[  663.058874]  ? __ia32_sys_read+0xb0/0xb0
[  663.062927]  ? syscall_slow_exit_work+0x500/0x500
[  663.067755]  __x64_sys_clone+0xbf/0x150
[  663.071725]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  663.076735]  do_syscall_64+0x1b9/0x820
[  663.080624]  ? syscall_return_slowpath+0x5e0/0x5e0
[  663.085546]  ? syscall_return_slowpath+0x31d/0x5e0
[  663.090463]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  663.095826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  663.100674]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  663.105853] RIP: 0033:0x441519
[  663.109023] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  663.128210] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  663.135905] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  663.143161] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  663.150414] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  663.157678] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  663.164930] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  663.180681] FAULT_INJECTION: forcing a failure.
[  663.180681] name failslab, interval 1, probability 0, space 0, times 0
[  663.191955] CPU: 1 PID: 4670 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  663.199848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  663.209204] Call Trace:
[  663.211786]  dump_stack+0x1c9/0x2b4
[  663.215412]  ? dump_stack_print_info.cold.2+0x52/0x52
[  663.220591]  ? save_stack+0x43/0xd0
[  663.224201]  ? kasan_kmalloc+0xc4/0xe0
[  663.228073]  ? kasan_slab_alloc+0x12/0x20
[  663.232215]  ? kmem_cache_alloc+0x12e/0x760
[  663.236520]  ? copy_creds+0x7b/0x470
[  663.240225]  should_fail.cold.4+0xa/0x1a
[  663.244271]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  663.249372]  ? find_held_lock+0x36/0x1c0
[  663.253425]  ? find_held_lock+0x36/0x1c0
[  663.257484]  ? check_same_owner+0x340/0x340
[  663.261795]  ? rcu_is_watching+0x8c/0x150
[  663.265928]  ? rcu_note_context_switch+0x730/0x730
[  663.270841]  ? security_prepare_creds+0x94/0xc0
[  663.275499]  __should_failslab+0x124/0x180
[  663.279721]  should_failslab+0x9/0x14
[  663.283506]  kmem_cache_alloc+0x2af/0x760
[  663.287668]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  663.292675]  __delayacct_tsk_init+0x20/0x80
[  663.296994]  copy_process.part.39+0x2ba8/0x7250
[  663.301652]  ? __lock_acquire+0x7fc/0x5020
[  663.305886]  ? __lock_acquire+0x7fc/0x5020
[  663.310127]  ? __lock_acquire+0x7fc/0x5020
[  663.314353]  ? __cleanup_sighand+0x70/0x70
[  663.318571]  ? debug_check_no_locks_freed+0x310/0x310
[  663.323754]  ? debug_check_no_locks_freed+0x310/0x310
[  663.328948]  ? print_usage_bug+0xc0/0xc0
[  663.332995]  ? print_usage_bug+0xc0/0xc0
[  663.337051]  ? d_splice_alias+0x7c9/0x11f0
[  663.341278]  ? lock_downgrade+0x8f0/0x8f0
[  663.345423]  ? d_instantiate_anon+0x30/0x30
[  663.349744]  ? __lock_acquire+0x7fc/0x5020
[  663.353967]  ? print_usage_bug+0xc0/0xc0
[  663.358027]  ? debug_check_no_locks_freed+0x310/0x310
[  663.363215]  ? debug_check_no_locks_freed+0x310/0x310
[  663.368391]  ? __lock_acquire+0x7fc/0x5020
[  663.372607]  ? print_usage_bug+0xc0/0xc0
[  663.376654]  ? lock_downgrade+0x8f0/0x8f0
[  663.380799]  ? debug_check_no_locks_freed+0x310/0x310
[  663.385984]  ? print_usage_bug+0xc0/0xc0
[  663.390042]  ? graph_lock+0x170/0x170
[  663.393842]  ? do_raw_spin_lock+0xc1/0x200
[  663.398063]  ? graph_lock+0x170/0x170
[  663.401862]  ? graph_lock+0x170/0x170
[  663.405651]  ? find_held_lock+0x36/0x1c0
[  663.409698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.415222]  ? _parse_integer+0x13b/0x190
[  663.419359]  ? graph_lock+0x170/0x170
[  663.423148]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  663.428671]  ? _kstrtoull+0x188/0x250
[  663.432467]  ? _parse_integer+0x190/0x190
[  663.436623]  ? graph_lock+0x170/0x170
[  663.440420]  ? lock_release+0xa30/0xa30
[  663.444405]  ? find_held_lock+0x36/0x1c0
[  663.448455]  ? lock_downgrade+0x8f0/0x8f0
[  663.452592]  ? kasan_check_read+0x11/0x20
[  663.456727]  ? rcu_is_watching+0x8c/0x150
[  663.460867]  ? pid_task+0x115/0x200
[  663.464477]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  663.468889]  ? save_stack+0xa9/0xd0
[  663.472523]  ? graph_lock+0x170/0x170
[  663.476311]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  663.481838]  ? proc_fail_nth_write+0x9e/0x210
[  663.486313]  ? proc_cwd_link+0x1d0/0x1d0
[  663.490359]  ? kasan_check_read+0x11/0x20
[  663.494492]  ? find_held_lock+0x36/0x1c0
[  663.498548]  _do_fork+0x291/0x12a0
[  663.502081]  ? fork_idle+0x1a0/0x1a0
[  663.505792]  ? __lock_is_held+0xb5/0x140
[  663.509857]  ? __sb_end_write+0xac/0xe0
[  663.513814]  ? vfs_write+0x2a8/0x560
[  663.517520]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.523045]  ? ksys_write+0x1ae/0x260
[  663.526833]  ? __ia32_sys_read+0xb0/0xb0
[  663.530887]  ? syscall_slow_exit_work+0x500/0x500
[  663.535734]  __x64_sys_clone+0xbf/0x150
[  663.539692]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  663.544705]  do_syscall_64+0x1b9/0x820
[  663.548576]  ? syscall_return_slowpath+0x5e0/0x5e0
[  663.553501]  ? syscall_return_slowpath+0x31d/0x5e0
[  663.558427]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  663.563775]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  663.568607]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  663.573781] RIP: 0033:0x441519
[  663.576951] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  663.596193] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  663.603901] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  663.611165] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  663.618417] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  663.625670] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  663.632921] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  663.644286] FAULT_INJECTION: forcing a failure.
[  663.644286] name failslab, interval 1, probability 0, space 0, times 0
[  663.655615] CPU: 1 PID: 4672 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  663.662709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  663.672074] Call Trace:
[  663.674671]  dump_stack+0x1c9/0x2b4
[  663.678287]  ? dump_stack_print_info.cold.2+0x52/0x52
[  663.683463]  ? save_stack+0x43/0xd0
[  663.687075]  ? kasan_kmalloc+0xc4/0xe0
[  663.690947]  ? kasan_slab_alloc+0x12/0x20
[  663.695085]  ? kmem_cache_alloc+0x12e/0x760
[  663.699392]  ? copy_creds+0x7b/0x470
[  663.703106]  should_fail.cold.4+0xa/0x1a
[  663.707151]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  663.712240]  ? find_held_lock+0x36/0x1c0
[  663.716291]  ? find_held_lock+0x36/0x1c0
[  663.720345]  ? check_same_owner+0x340/0x340
[  663.724648]  ? rcu_is_watching+0x8c/0x150
[  663.728778]  ? rcu_note_context_switch+0x730/0x730
[  663.733692]  ? security_prepare_creds+0x94/0xc0
[  663.738346]  __should_failslab+0x124/0x180
[  663.742569]  should_failslab+0x9/0x14
[  663.746354]  kmem_cache_alloc+0x2af/0x760
[  663.750493]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  663.755500]  __delayacct_tsk_init+0x20/0x80
[  663.759814]  copy_process.part.39+0x2ba8/0x7250
[  663.764466]  ? __lock_acquire+0x7fc/0x5020
[  663.768688]  ? __lock_acquire+0x7fc/0x5020
[  663.772903]  ? __lock_acquire+0x7fc/0x5020
[  663.777141]  ? __cleanup_sighand+0x70/0x70
[  663.781368]  ? debug_check_no_locks_freed+0x310/0x310
[  663.786540]  ? debug_check_no_locks_freed+0x310/0x310
[  663.791713]  ? print_usage_bug+0xc0/0xc0
[  663.795758]  ? print_usage_bug+0xc0/0xc0
[  663.799802]  ? d_splice_alias+0x7c9/0x11f0
[  663.804038]  ? lock_downgrade+0x8f0/0x8f0
[  663.808180]  ? d_instantiate_anon+0x30/0x30
[  663.812492]  ? __lock_acquire+0x7fc/0x5020
[  663.816725]  ? print_usage_bug+0xc0/0xc0
[  663.820783]  ? debug_check_no_locks_freed+0x310/0x310
[  663.825960]  ? debug_check_no_locks_freed+0x310/0x310
[  663.831134]  ? __lock_acquire+0x7fc/0x5020
[  663.835362]  ? print_usage_bug+0xc0/0xc0
[  663.839402]  ? lock_downgrade+0x8f0/0x8f0
[  663.843536]  ? debug_check_no_locks_freed+0x310/0x310
[  663.848709]  ? print_usage_bug+0xc0/0xc0
[  663.852761]  ? graph_lock+0x170/0x170
[  663.856547]  ? do_raw_spin_lock+0xc1/0x200
[  663.860782]  ? graph_lock+0x170/0x170
[  663.864565]  ? graph_lock+0x170/0x170
[  663.868353]  ? find_held_lock+0x36/0x1c0
[  663.872405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.877941]  ? _parse_integer+0x13b/0x190
[  663.882071]  ? graph_lock+0x170/0x170
[  663.885867]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  663.891385]  ? _kstrtoull+0x188/0x250
[  663.895167]  ? _parse_integer+0x190/0x190
[  663.899297]  ? graph_lock+0x170/0x170
[  663.903080]  ? lock_release+0xa30/0xa30
[  663.907044]  ? find_held_lock+0x36/0x1c0
[  663.911092]  ? lock_downgrade+0x8f0/0x8f0
[  663.915240]  ? kasan_check_read+0x11/0x20
[  663.919375]  ? rcu_is_watching+0x8c/0x150
[  663.923513]  ? pid_task+0x115/0x200
[  663.927122]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  663.931525]  ? save_stack+0xa9/0xd0
[  663.935151]  ? graph_lock+0x170/0x170
[  663.938946]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  663.944503]  ? proc_fail_nth_write+0x9e/0x210
[  663.948991]  ? proc_cwd_link+0x1d0/0x1d0
[  663.953045]  ? kasan_check_read+0x11/0x20
[  663.957181]  ? find_held_lock+0x36/0x1c0
[  663.961229]  _do_fork+0x291/0x12a0
[  663.964758]  ? fork_idle+0x1a0/0x1a0
[  663.968456]  ? __lock_is_held+0xb5/0x140
[  663.972521]  ? __sb_end_write+0xac/0xe0
[  663.976479]  ? vfs_write+0x2a8/0x560
[  663.980179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.985696]  ? ksys_write+0x1ae/0x260
[  663.989495]  ? __ia32_sys_read+0xb0/0xb0
[  663.993545]  ? syscall_slow_exit_work+0x500/0x500
[  663.998374]  __x64_sys_clone+0xbf/0x150
[  664.002332]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  664.007344]  do_syscall_64+0x1b9/0x820
[  664.011213]  ? syscall_return_slowpath+0x5e0/0x5e0
[  664.016125]  ? syscall_return_slowpath+0x31d/0x5e0
[  664.021048]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  664.026397]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  664.031224]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  664.036401] RIP: 0033:0x441519
[  664.039576] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  664.058788] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  664.066482] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  664.073747] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  664.081011] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  664.088271] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  664.095519] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  664.106864] FAULT_INJECTION: forcing a failure.
[  664.106864] name failslab, interval 1, probability 0, space 0, times 0
[  664.118136] CPU: 1 PID: 4674 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  664.125224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  664.134557] Call Trace:
[  664.137134]  dump_stack+0x1c9/0x2b4
[  664.140748]  ? dump_stack_print_info.cold.2+0x52/0x52
[  664.145922]  ? save_stack+0x43/0xd0
[  664.149528]  ? kasan_kmalloc+0xc4/0xe0
[  664.153398]  ? kasan_slab_alloc+0x12/0x20
[  664.157525]  ? kmem_cache_alloc+0x12e/0x760
[  664.161828]  ? copy_creds+0x7b/0x470
[  664.165529]  should_fail.cold.4+0xa/0x1a
[  664.169575]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  664.174660]  ? find_held_lock+0x36/0x1c0
[  664.178715]  ? find_held_lock+0x36/0x1c0
[  664.182766]  ? check_same_owner+0x340/0x340
[  664.187067]  ? rcu_is_watching+0x8c/0x150
[  664.191196]  ? rcu_note_context_switch+0x730/0x730
[  664.196111]  ? security_prepare_creds+0x94/0xc0
[  664.200775]  __should_failslab+0x124/0x180
[  664.205002]  should_failslab+0x9/0x14
[  664.208794]  kmem_cache_alloc+0x2af/0x760
[  664.212925]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  664.217946]  __delayacct_tsk_init+0x20/0x80
[  664.222263]  copy_process.part.39+0x2ba8/0x7250
[  664.226928]  ? __lock_acquire+0x7fc/0x5020
[  664.231147]  ? __lock_acquire+0x7fc/0x5020
[  664.235363]  ? __lock_acquire+0x7fc/0x5020
[  664.239584]  ? __cleanup_sighand+0x70/0x70
[  664.243802]  ? debug_check_no_locks_freed+0x310/0x310
[  664.248983]  ? debug_check_no_locks_freed+0x310/0x310
[  664.254155]  ? print_usage_bug+0xc0/0xc0
[  664.258199]  ? print_usage_bug+0xc0/0xc0
[  664.262248]  ? d_splice_alias+0x7c9/0x11f0
[  664.266476]  ? lock_downgrade+0x8f0/0x8f0
[  664.270607]  ? d_instantiate_anon+0x30/0x30
[  664.274926]  ? __lock_acquire+0x7fc/0x5020
[  664.279149]  ? print_usage_bug+0xc0/0xc0
[  664.283197]  ? debug_check_no_locks_freed+0x310/0x310
[  664.288386]  ? debug_check_no_locks_freed+0x310/0x310
[  664.293561]  ? __lock_acquire+0x7fc/0x5020
[  664.297806]  ? print_usage_bug+0xc0/0xc0
[  664.301855]  ? lock_downgrade+0x8f0/0x8f0
[  664.306001]  ? debug_check_no_locks_freed+0x310/0x310
[  664.311182]  ? print_usage_bug+0xc0/0xc0
[  664.315226]  ? graph_lock+0x170/0x170
[  664.319012]  ? do_raw_spin_lock+0xc1/0x200
[  664.323238]  ? graph_lock+0x170/0x170
[  664.327044]  ? graph_lock+0x170/0x170
[  664.330844]  ? find_held_lock+0x36/0x1c0
[  664.334890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.340412]  ? _parse_integer+0x13b/0x190
[  664.344552]  ? graph_lock+0x170/0x170
[  664.348351]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  664.353881]  ? _kstrtoull+0x188/0x250
[  664.357674]  ? _parse_integer+0x190/0x190
[  664.361809]  ? graph_lock+0x170/0x170
[  664.365592]  ? lock_release+0xa30/0xa30
[  664.369548]  ? find_held_lock+0x36/0x1c0
[  664.373608]  ? lock_downgrade+0x8f0/0x8f0
[  664.377754]  ? kasan_check_read+0x11/0x20
[  664.381886]  ? rcu_is_watching+0x8c/0x150
[  664.386024]  ? pid_task+0x115/0x200
[  664.389651]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  664.394059]  ? save_stack+0xa9/0xd0
[  664.397680]  ? graph_lock+0x170/0x170
[  664.401476]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  664.407002]  ? proc_fail_nth_write+0x9e/0x210
[  664.411487]  ? proc_cwd_link+0x1d0/0x1d0
[  664.415542]  ? kasan_check_read+0x11/0x20
[  664.419676]  ? find_held_lock+0x36/0x1c0
[  664.423724]  _do_fork+0x291/0x12a0
[  664.427255]  ? fork_idle+0x1a0/0x1a0
[  664.430972]  ? __lock_is_held+0xb5/0x140
[  664.435039]  ? __sb_end_write+0xac/0xe0
[  664.439002]  ? vfs_write+0x2a8/0x560
[  664.442712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.448237]  ? ksys_write+0x1ae/0x260
[  664.452034]  ? __ia32_sys_read+0xb0/0xb0
[  664.456122]  ? syscall_slow_exit_work+0x500/0x500
[  664.460962]  __x64_sys_clone+0xbf/0x150
[  664.464922]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  664.469923]  do_syscall_64+0x1b9/0x820
[  664.473795]  ? syscall_return_slowpath+0x5e0/0x5e0
[  664.478709]  ? syscall_return_slowpath+0x31d/0x5e0
[  664.483629]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  664.488990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  664.493827]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  664.499000] RIP: 0033:0x441519
executing program
[  664.502175] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  664.521350] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  664.529048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  664.536312] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  664.543576] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  664.550828] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  664.558099] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  664.569989] FAULT_INJECTION: forcing a failure.
[  664.569989] name failslab, interval 1, probability 0, space 0, times 0
[  664.581284] CPU: 0 PID: 4676 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  664.588372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  664.597706] Call Trace:
[  664.600293]  dump_stack+0x1c9/0x2b4
[  664.603904]  ? dump_stack_print_info.cold.2+0x52/0x52
[  664.609081]  ? save_stack+0x43/0xd0
[  664.612688]  ? kasan_kmalloc+0xc4/0xe0
[  664.616561]  ? kasan_slab_alloc+0x12/0x20
[  664.620690]  ? kmem_cache_alloc+0x12e/0x760
[  664.624999]  ? copy_creds+0x7b/0x470
[  664.628706]  should_fail.cold.4+0xa/0x1a
[  664.632756]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  664.637841]  ? find_held_lock+0x36/0x1c0
[  664.641899]  ? find_held_lock+0x36/0x1c0
[  664.645973]  ? check_same_owner+0x340/0x340
[  664.650278]  ? rcu_is_watching+0x8c/0x150
[  664.654408]  ? rcu_note_context_switch+0x730/0x730
[  664.659322]  ? security_prepare_creds+0x94/0xc0
[  664.663979]  __should_failslab+0x124/0x180
[  664.668198]  should_failslab+0x9/0x14
[  664.671980]  kmem_cache_alloc+0x2af/0x760
[  664.676111]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  664.681129]  __delayacct_tsk_init+0x20/0x80
[  664.685449]  copy_process.part.39+0x2ba8/0x7250
[  664.690111]  ? __lock_acquire+0x7fc/0x5020
[  664.694338]  ? __lock_acquire+0x7fc/0x5020
[  664.698564]  ? __lock_acquire+0x7fc/0x5020
[  664.702806]  ? __cleanup_sighand+0x70/0x70
[  664.707032]  ? debug_check_no_locks_freed+0x310/0x310
[  664.712205]  ? debug_check_no_locks_freed+0x310/0x310
[  664.717389]  ? print_usage_bug+0xc0/0xc0
[  664.721436]  ? print_usage_bug+0xc0/0xc0
[  664.725489]  ? d_splice_alias+0x7c9/0x11f0
[  664.729706]  ? lock_downgrade+0x8f0/0x8f0
[  664.733944]  ? d_instantiate_anon+0x30/0x30
[  664.738258]  ? __lock_acquire+0x7fc/0x5020
[  664.742480]  ? print_usage_bug+0xc0/0xc0
[  664.746535]  ? debug_check_no_locks_freed+0x310/0x310
[  664.751718]  ? debug_check_no_locks_freed+0x310/0x310
[  664.756901]  ? __lock_acquire+0x7fc/0x5020
[  664.761125]  ? print_usage_bug+0xc0/0xc0
[  664.765170]  ? lock_downgrade+0x8f0/0x8f0
[  664.769316]  ? debug_check_no_locks_freed+0x310/0x310
[  664.774504]  ? print_usage_bug+0xc0/0xc0
[  664.778562]  ? graph_lock+0x170/0x170
[  664.782352]  ? do_raw_spin_lock+0xc1/0x200
[  664.786582]  ? graph_lock+0x170/0x170
[  664.790368]  ? graph_lock+0x170/0x170
[  664.794156]  ? find_held_lock+0x36/0x1c0
[  664.798216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.803739]  ? _parse_integer+0x13b/0x190
[  664.807876]  ? graph_lock+0x170/0x170
[  664.811664]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  664.817182]  ? _kstrtoull+0x188/0x250
[  664.820974]  ? _parse_integer+0x190/0x190
[  664.825105]  ? graph_lock+0x170/0x170
[  664.828896]  ? lock_release+0xa30/0xa30
[  664.832877]  ? find_held_lock+0x36/0x1c0
[  664.836931]  ? lock_downgrade+0x8f0/0x8f0
[  664.841066]  ? kasan_check_read+0x11/0x20
[  664.845195]  ? rcu_is_watching+0x8c/0x150
[  664.849325]  ? pid_task+0x115/0x200
[  664.852932]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  664.857323]  ? save_stack+0xa9/0xd0
[  664.860930]  ? graph_lock+0x170/0x170
[  664.864716]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  664.870246]  ? proc_fail_nth_write+0x9e/0x210
[  664.874726]  ? proc_cwd_link+0x1d0/0x1d0
[  664.878770]  ? kasan_check_read+0x11/0x20
[  664.882905]  ? find_held_lock+0x36/0x1c0
[  664.886961]  _do_fork+0x291/0x12a0
[  664.890488]  ? fork_idle+0x1a0/0x1a0
[  664.894185]  ? __lock_is_held+0xb5/0x140
[  664.898246]  ? __sb_end_write+0xac/0xe0
[  664.902215]  ? vfs_write+0x2a8/0x560
[  664.906067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.911586]  ? ksys_write+0x1ae/0x260
[  664.915369]  ? __ia32_sys_read+0xb0/0xb0
[  664.919428]  ? syscall_slow_exit_work+0x500/0x500
[  664.924267]  __x64_sys_clone+0xbf/0x150
[  664.928234]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  664.933237]  do_syscall_64+0x1b9/0x820
[  664.937126]  ? syscall_return_slowpath+0x5e0/0x5e0
[  664.942041]  ? syscall_return_slowpath+0x31d/0x5e0
[  664.946958]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  664.952317]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  664.957154]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  664.962332] RIP: 0033:0x441519
[  664.965502] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  664.984723] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  664.992416] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  664.999769] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  665.007037] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  665.014310] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  665.021573] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  665.033948] FAULT_INJECTION: forcing a failure.
[  665.033948] name failslab, interval 1, probability 0, space 0, times 0
[  665.045206] CPU: 1 PID: 4678 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  665.052303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  665.061641] Call Trace:
[  665.064249]  dump_stack+0x1c9/0x2b4
[  665.067863]  ? dump_stack_print_info.cold.2+0x52/0x52
[  665.073051]  ? save_stack+0x43/0xd0
[  665.076679]  ? kasan_kmalloc+0xc4/0xe0
[  665.080550]  ? kasan_slab_alloc+0x12/0x20
[  665.084692]  ? kmem_cache_alloc+0x12e/0x760
[  665.089001]  ? copy_creds+0x7b/0x470
[  665.092713]  should_fail.cold.4+0xa/0x1a
[  665.096772]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  665.101880]  ? find_held_lock+0x36/0x1c0
[  665.105952]  ? find_held_lock+0x36/0x1c0
[  665.110024]  ? check_same_owner+0x340/0x340
[  665.114338]  ? rcu_is_watching+0x8c/0x150
[  665.118471]  ? rcu_note_context_switch+0x730/0x730
[  665.123402]  ? security_prepare_creds+0x94/0xc0
[  665.128070]  __should_failslab+0x124/0x180
[  665.132295]  should_failslab+0x9/0x14
[  665.136079]  kmem_cache_alloc+0x2af/0x760
[  665.140212]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  665.145224]  __delayacct_tsk_init+0x20/0x80
[  665.149552]  copy_process.part.39+0x2ba8/0x7250
[  665.154219]  ? __lock_acquire+0x7fc/0x5020
[  665.158439]  ? __lock_acquire+0x7fc/0x5020
[  665.162657]  ? __lock_acquire+0x7fc/0x5020
[  665.166885]  ? __cleanup_sighand+0x70/0x70
[  665.171104]  ? debug_check_no_locks_freed+0x310/0x310
[  665.176280]  ? debug_check_no_locks_freed+0x310/0x310
[  665.181459]  ? print_usage_bug+0xc0/0xc0
[  665.185529]  ? print_usage_bug+0xc0/0xc0
[  665.189578]  ? d_splice_alias+0x7c9/0x11f0
[  665.193801]  ? lock_downgrade+0x8f0/0x8f0
[  665.198808]  ? d_instantiate_anon+0x30/0x30
[  665.203117]  ? __lock_acquire+0x7fc/0x5020
[  665.207349]  ? print_usage_bug+0xc0/0xc0
[  665.211400]  ? debug_check_no_locks_freed+0x310/0x310
[  665.216577]  ? debug_check_no_locks_freed+0x310/0x310
[  665.221752]  ? __lock_acquire+0x7fc/0x5020
[  665.225969]  ? print_usage_bug+0xc0/0xc0
[  665.230015]  ? lock_downgrade+0x8f0/0x8f0
[  665.234169]  ? debug_check_no_locks_freed+0x310/0x310
[  665.239343]  ? print_usage_bug+0xc0/0xc0
[  665.243405]  ? graph_lock+0x170/0x170
[  665.247201]  ? do_raw_spin_lock+0xc1/0x200
[  665.251420]  ? graph_lock+0x170/0x170
[  665.255206]  ? graph_lock+0x170/0x170
[  665.259010]  ? find_held_lock+0x36/0x1c0
[  665.263065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  665.268599]  ? _parse_integer+0x13b/0x190
[  665.272734]  ? graph_lock+0x170/0x170
[  665.276523]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  665.282050]  ? _kstrtoull+0x188/0x250
[  665.285851]  ? _parse_integer+0x190/0x190
[  665.289991]  ? graph_lock+0x170/0x170
[  665.293778]  ? lock_release+0xa30/0xa30
[  665.297742]  ? find_held_lock+0x36/0x1c0
[  665.301808]  ? lock_downgrade+0x8f0/0x8f0
[  665.305956]  ? kasan_check_read+0x11/0x20
[  665.310090]  ? rcu_is_watching+0x8c/0x150
[  665.314223]  ? pid_task+0x115/0x200
[  665.317833]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  665.322228]  ? save_stack+0xa9/0xd0
[  665.325848]  ? graph_lock+0x170/0x170
[  665.329638]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  665.335167]  ? proc_fail_nth_write+0x9e/0x210
[  665.339658]  ? proc_cwd_link+0x1d0/0x1d0
[  665.343720]  ? kasan_check_read+0x11/0x20
[  665.347863]  ? find_held_lock+0x36/0x1c0
[  665.351943]  _do_fork+0x291/0x12a0
[  665.355476]  ? fork_idle+0x1a0/0x1a0
[  665.359181]  ? __lock_is_held+0xb5/0x140
[  665.363252]  ? __sb_end_write+0xac/0xe0
[  665.367224]  ? vfs_write+0x2a8/0x560
[  665.370928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  665.376449]  ? ksys_write+0x1ae/0x260
[  665.380240]  ? __ia32_sys_read+0xb0/0xb0
[  665.384307]  ? syscall_slow_exit_work+0x500/0x500
[  665.389136]  __x64_sys_clone+0xbf/0x150
[  665.393096]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  665.398107]  do_syscall_64+0x1b9/0x820
[  665.401983]  ? syscall_return_slowpath+0x5e0/0x5e0
[  665.406913]  ? syscall_return_slowpath+0x31d/0x5e0
[  665.411845]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  665.417199]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  665.422046]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  665.427228] RIP: 0033:0x441519
[  665.430398] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  665.449580] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  665.457297] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  665.464551] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  665.471805] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  665.479061] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  665.486317] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  665.497715] FAULT_INJECTION: forcing a failure.
[  665.497715] name failslab, interval 1, probability 0, space 0, times 0
[  665.509117] CPU: 1 PID: 4680 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  665.516212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  665.525675] Call Trace:
[  665.528261]  dump_stack+0x1c9/0x2b4
[  665.532010]  ? dump_stack_print_info.cold.2+0x52/0x52
[  665.537199]  ? save_stack+0x43/0xd0
[  665.540825]  ? kasan_kmalloc+0xc4/0xe0
[  665.544708]  ? kasan_slab_alloc+0x12/0x20
[  665.548896]  ? kmem_cache_alloc+0x12e/0x760
[  665.553201]  ? copy_creds+0x7b/0x470
[  665.556928]  should_fail.cold.4+0xa/0x1a
[  665.560995]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  665.566095]  ? find_held_lock+0x36/0x1c0
[  665.570159]  ? find_held_lock+0x36/0x1c0
[  665.574226]  ? check_same_owner+0x340/0x340
[  665.578533]  ? rcu_is_watching+0x8c/0x150
[  665.582666]  ? rcu_note_context_switch+0x730/0x730
[  665.587584]  ? security_prepare_creds+0x94/0xc0
[  665.592256]  __should_failslab+0x124/0x180
[  665.596491]  should_failslab+0x9/0x14
[  665.600289]  kmem_cache_alloc+0x2af/0x760
[  665.604424]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  665.609439]  __delayacct_tsk_init+0x20/0x80
[  665.613753]  copy_process.part.39+0x2ba8/0x7250
[  665.618426]  ? __lock_acquire+0x7fc/0x5020
[  665.622666]  ? __lock_acquire+0x7fc/0x5020
[  665.626905]  ? __lock_acquire+0x7fc/0x5020
[  665.631155]  ? __cleanup_sighand+0x70/0x70
[  665.635395]  ? debug_check_no_locks_freed+0x310/0x310
[  665.640590]  ? debug_check_no_locks_freed+0x310/0x310
[  665.645784]  ? print_usage_bug+0xc0/0xc0
[  665.649845]  ? print_usage_bug+0xc0/0xc0
[  665.653893]  ? d_splice_alias+0x7c9/0x11f0
[  665.658110]  ? lock_downgrade+0x8f0/0x8f0
[  665.662242]  ? d_instantiate_anon+0x30/0x30
[  665.666549]  ? __lock_acquire+0x7fc/0x5020
[  665.670772]  ? print_usage_bug+0xc0/0xc0
[  665.674837]  ? debug_check_no_locks_freed+0x310/0x310
[  665.680045]  ? debug_check_no_locks_freed+0x310/0x310
[  665.685236]  ? __lock_acquire+0x7fc/0x5020
[  665.689478]  ? print_usage_bug+0xc0/0xc0
[  665.693538]  ? lock_downgrade+0x8f0/0x8f0
[  665.697686]  ? debug_check_no_locks_freed+0x310/0x310
[  665.702866]  ? print_usage_bug+0xc0/0xc0
[  665.706915]  ? graph_lock+0x170/0x170
[  665.710700]  ? do_raw_spin_lock+0xc1/0x200
[  665.714923]  ? graph_lock+0x170/0x170
[  665.718709]  ? graph_lock+0x170/0x170
[  665.722509]  ? find_held_lock+0x36/0x1c0
[  665.726567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  665.732095]  ? _parse_integer+0x13b/0x190
[  665.736230]  ? graph_lock+0x170/0x170
[  665.740024]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  665.745556]  ? _kstrtoull+0x188/0x250
[  665.749347]  ? _parse_integer+0x190/0x190
[  665.753488]  ? graph_lock+0x170/0x170
[  665.757297]  ? lock_release+0xa30/0xa30
[  665.761263]  ? find_held_lock+0x36/0x1c0
[  665.765317]  ? lock_downgrade+0x8f0/0x8f0
[  665.769456]  ? kasan_check_read+0x11/0x20
[  665.773593]  ? rcu_is_watching+0x8c/0x150
[  665.777725]  ? pid_task+0x115/0x200
[  665.781336]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  665.785728]  ? save_stack+0xa9/0xd0
[  665.789349]  ? graph_lock+0x170/0x170
[  665.793148]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  665.798677]  ? proc_fail_nth_write+0x9e/0x210
[  665.803157]  ? proc_cwd_link+0x1d0/0x1d0
[  665.807207]  ? kasan_check_read+0x11/0x20
[  665.811360]  ? find_held_lock+0x36/0x1c0
[  665.815409]  _do_fork+0x291/0x12a0
[  665.818938]  ? fork_idle+0x1a0/0x1a0
[  665.822636]  ? __lock_is_held+0xb5/0x140
[  665.826687]  ? __sb_end_write+0xac/0xe0
[  665.830657]  ? vfs_write+0x2a8/0x560
[  665.834358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  665.839877]  ? ksys_write+0x1ae/0x260
[  665.843664]  ? __ia32_sys_read+0xb0/0xb0
[  665.847712]  ? syscall_slow_exit_work+0x500/0x500
[  665.852552]  __x64_sys_clone+0xbf/0x150
[  665.856512]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  665.861529]  do_syscall_64+0x1b9/0x820
[  665.865402]  ? syscall_return_slowpath+0x5e0/0x5e0
[  665.870316]  ? syscall_return_slowpath+0x31d/0x5e0
[  665.875264]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  665.880623]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  665.885457]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  665.890728] RIP: 0033:0x441519
[  665.893896] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  665.913100] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  665.920816] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  665.928077] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  665.935349] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  665.942605] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  665.949858] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  665.961720] FAULT_INJECTION: forcing a failure.
[  665.961720] name failslab, interval 1, probability 0, space 0, times 0
[  665.973157] CPU: 0 PID: 4682 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  665.980248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  665.989586] Call Trace:
[  665.992166]  dump_stack+0x1c9/0x2b4
[  665.995781]  ? dump_stack_print_info.cold.2+0x52/0x52
[  666.000961]  ? save_stack+0x43/0xd0
[  666.004579]  ? kasan_kmalloc+0xc4/0xe0
[  666.008449]  ? kasan_slab_alloc+0x12/0x20
[  666.012579]  ? kmem_cache_alloc+0x12e/0x760
[  666.016901]  ? copy_creds+0x7b/0x470
[  666.020622]  should_fail.cold.4+0xa/0x1a
[  666.024675]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.029764]  ? find_held_lock+0x36/0x1c0
[  666.033822]  ? find_held_lock+0x36/0x1c0
[  666.037891]  ? check_same_owner+0x340/0x340
[  666.042194]  ? rcu_is_watching+0x8c/0x150
[  666.046323]  ? rcu_note_context_switch+0x730/0x730
[  666.051267]  ? security_prepare_creds+0x94/0xc0
[  666.055941]  __should_failslab+0x124/0x180
[  666.060167]  should_failslab+0x9/0x14
[  666.063949]  kmem_cache_alloc+0x2af/0x760
[  666.068079]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  666.073103]  __delayacct_tsk_init+0x20/0x80
[  666.077426]  copy_process.part.39+0x2ba8/0x7250
[  666.082083]  ? __lock_acquire+0x7fc/0x5020
[  666.086309]  ? __lock_acquire+0x7fc/0x5020
[  666.090549]  ? __lock_acquire+0x7fc/0x5020
[  666.094785]  ? __cleanup_sighand+0x70/0x70
[  666.099033]  ? debug_check_no_locks_freed+0x310/0x310
[  666.104212]  ? debug_check_no_locks_freed+0x310/0x310
[  666.109397]  ? print_usage_bug+0xc0/0xc0
[  666.113447]  ? print_usage_bug+0xc0/0xc0
[  666.117499]  ? d_splice_alias+0x7c9/0x11f0
[  666.121728]  ? lock_downgrade+0x8f0/0x8f0
[  666.125871]  ? d_instantiate_anon+0x30/0x30
[  666.130180]  ? __lock_acquire+0x7fc/0x5020
[  666.134402]  ? print_usage_bug+0xc0/0xc0
[  666.138461]  ? debug_check_no_locks_freed+0x310/0x310
[  666.143640]  ? debug_check_no_locks_freed+0x310/0x310
[  666.148829]  ? __lock_acquire+0x7fc/0x5020
[  666.153052]  ? print_usage_bug+0xc0/0xc0
[  666.157099]  ? lock_downgrade+0x8f0/0x8f0
[  666.161247]  ? debug_check_no_locks_freed+0x310/0x310
[  666.166424]  ? print_usage_bug+0xc0/0xc0
[  666.170468]  ? graph_lock+0x170/0x170
[  666.174250]  ? do_raw_spin_lock+0xc1/0x200
[  666.178470]  ? graph_lock+0x170/0x170
[  666.182254]  ? graph_lock+0x170/0x170
[  666.186055]  ? find_held_lock+0x36/0x1c0
[  666.190111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.195635]  ? _parse_integer+0x13b/0x190
[  666.199766]  ? graph_lock+0x170/0x170
[  666.203551]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  666.209083]  ? _kstrtoull+0x188/0x250
[  666.212869]  ? _parse_integer+0x190/0x190
[  666.216997]  ? graph_lock+0x170/0x170
[  666.220789]  ? lock_release+0xa30/0xa30
[  666.224758]  ? find_held_lock+0x36/0x1c0
[  666.228811]  ? lock_downgrade+0x8f0/0x8f0
[  666.232944]  ? kasan_check_read+0x11/0x20
[  666.237073]  ? rcu_is_watching+0x8c/0x150
[  666.241204]  ? pid_task+0x115/0x200
[  666.244817]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  666.249211]  ? save_stack+0xa9/0xd0
[  666.252833]  ? graph_lock+0x170/0x170
[  666.256618]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  666.262136]  ? proc_fail_nth_write+0x9e/0x210
[  666.266613]  ? proc_cwd_link+0x1d0/0x1d0
[  666.270656]  ? kasan_check_read+0x11/0x20
[  666.274793]  ? find_held_lock+0x36/0x1c0
[  666.278838]  _do_fork+0x291/0x12a0
[  666.282364]  ? fork_idle+0x1a0/0x1a0
[  666.286061]  ? __lock_is_held+0xb5/0x140
[  666.290112]  ? __sb_end_write+0xac/0xe0
[  666.294069]  ? vfs_write+0x2a8/0x560
[  666.297767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.303300]  ? ksys_write+0x1ae/0x260
[  666.307091]  ? __ia32_sys_read+0xb0/0xb0
[  666.311145]  ? syscall_slow_exit_work+0x500/0x500
[  666.315974]  __x64_sys_clone+0xbf/0x150
[  666.319944]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  666.324946]  do_syscall_64+0x1b9/0x820
[  666.328823]  ? syscall_return_slowpath+0x5e0/0x5e0
[  666.333745]  ? syscall_return_slowpath+0x31d/0x5e0
[  666.338664]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  666.344023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  666.348863]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  666.354040] RIP: 0033:0x441519
[  666.357208] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  666.376964] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  666.384680] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  666.391936] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  666.399189] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  666.406442] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  666.413697] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  666.426159] FAULT_INJECTION: forcing a failure.
[  666.426159] name failslab, interval 1, probability 0, space 0, times 0
[  666.437398] CPU: 1 PID: 4684 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  666.444485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  666.453824] Call Trace:
[  666.456418]  dump_stack+0x1c9/0x2b4
[  666.460054]  ? dump_stack_print_info.cold.2+0x52/0x52
[  666.465237]  ? save_stack+0x43/0xd0
[  666.468854]  ? kasan_kmalloc+0xc4/0xe0
[  666.472989]  ? kasan_slab_alloc+0x12/0x20
[  666.477136]  ? kmem_cache_alloc+0x12e/0x760
[  666.481441]  ? copy_creds+0x7b/0x470
[  666.485142]  should_fail.cold.4+0xa/0x1a
[  666.489193]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.494285]  ? find_held_lock+0x36/0x1c0
[  666.498347]  ? find_held_lock+0x36/0x1c0
[  666.502398]  ? check_same_owner+0x340/0x340
[  666.506703]  ? rcu_is_watching+0x8c/0x150
[  666.510834]  ? rcu_note_context_switch+0x730/0x730
[  666.515768]  ? security_prepare_creds+0x94/0xc0
[  666.520424]  __should_failslab+0x124/0x180
[  666.524654]  should_failslab+0x9/0x14
[  666.528448]  kmem_cache_alloc+0x2af/0x760
[  666.532592]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  666.537597]  __delayacct_tsk_init+0x20/0x80
[  666.541914]  copy_process.part.39+0x2ba8/0x7250
[  666.546581]  ? __lock_acquire+0x7fc/0x5020
[  666.550801]  ? __lock_acquire+0x7fc/0x5020
[  666.555029]  ? __lock_acquire+0x7fc/0x5020
[  666.559284]  ? __cleanup_sighand+0x70/0x70
[  666.563523]  ? debug_check_no_locks_freed+0x310/0x310
[  666.568700]  ? debug_check_no_locks_freed+0x310/0x310
[  666.573875]  ? print_usage_bug+0xc0/0xc0
[  666.577925]  ? print_usage_bug+0xc0/0xc0
[  666.581970]  ? d_splice_alias+0x7c9/0x11f0
[  666.586188]  ? lock_downgrade+0x8f0/0x8f0
[  666.590328]  ? d_instantiate_anon+0x30/0x30
[  666.594636]  ? __lock_acquire+0x7fc/0x5020
[  666.598873]  ? print_usage_bug+0xc0/0xc0
[  666.602919]  ? debug_check_no_locks_freed+0x310/0x310
[  666.608095]  ? debug_check_no_locks_freed+0x310/0x310
[  666.613274]  ? __lock_acquire+0x7fc/0x5020
[  666.617500]  ? print_usage_bug+0xc0/0xc0
[  666.621544]  ? lock_downgrade+0x8f0/0x8f0
[  666.625700]  ? debug_check_no_locks_freed+0x310/0x310
[  666.630877]  ? print_usage_bug+0xc0/0xc0
[  666.634933]  ? graph_lock+0x170/0x170
[  666.638717]  ? do_raw_spin_lock+0xc1/0x200
[  666.642937]  ? graph_lock+0x170/0x170
[  666.646734]  ? graph_lock+0x170/0x170
[  666.650538]  ? find_held_lock+0x36/0x1c0
[  666.654586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.660105]  ? _parse_integer+0x13b/0x190
[  666.664237]  ? graph_lock+0x170/0x170
[  666.668035]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  666.673569]  ? _kstrtoull+0x188/0x250
[  666.677351]  ? _parse_integer+0x190/0x190
[  666.681483]  ? graph_lock+0x170/0x170
[  666.685270]  ? lock_release+0xa30/0xa30
[  666.689228]  ? find_held_lock+0x36/0x1c0
[  666.693289]  ? lock_downgrade+0x8f0/0x8f0
[  666.697435]  ? kasan_check_read+0x11/0x20
[  666.701566]  ? rcu_is_watching+0x8c/0x150
[  666.705697]  ? pid_task+0x115/0x200
[  666.709306]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  666.713699]  ? save_stack+0xa9/0xd0
[  666.717310]  ? graph_lock+0x170/0x170
[  666.721099]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  666.726620]  ? proc_fail_nth_write+0x9e/0x210
[  666.731096]  ? proc_cwd_link+0x1d0/0x1d0
[  666.735150]  ? kasan_check_read+0x11/0x20
[  666.739284]  ? find_held_lock+0x36/0x1c0
[  666.743328]  _do_fork+0x291/0x12a0
[  666.746854]  ? fork_idle+0x1a0/0x1a0
[  666.750552]  ? __lock_is_held+0xb5/0x140
[  666.754605]  ? __sb_end_write+0xac/0xe0
[  666.758561]  ? vfs_write+0x2a8/0x560
[  666.762262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.767780]  ? ksys_write+0x1ae/0x260
[  666.771573]  ? __ia32_sys_read+0xb0/0xb0
[  666.775620]  ? syscall_slow_exit_work+0x500/0x500
[  666.780446]  __x64_sys_clone+0xbf/0x150
[  666.784402]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  666.789403]  do_syscall_64+0x1b9/0x820
[  666.793275]  ? syscall_return_slowpath+0x5e0/0x5e0
[  666.798199]  ? syscall_return_slowpath+0x31d/0x5e0
[  666.803126]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  666.808484]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  666.813327]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  666.818499] RIP: 0033:0x441519
[  666.821668] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  666.840869] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  666.848562] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  666.855812] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  666.863061] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  666.870312] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  666.877563] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  666.889434] FAULT_INJECTION: forcing a failure.
[  666.889434] name failslab, interval 1, probability 0, space 0, times 0
[  666.900678] CPU: 0 PID: 4686 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  666.907760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  666.917101] Call Trace:
[  666.919691]  dump_stack+0x1c9/0x2b4
[  666.923316]  ? dump_stack_print_info.cold.2+0x52/0x52
[  666.928497]  ? save_stack+0x43/0xd0
[  666.932105]  ? kasan_kmalloc+0xc4/0xe0
[  666.935974]  ? kasan_slab_alloc+0x12/0x20
[  666.940100]  ? kmem_cache_alloc+0x12e/0x760
[  666.944412]  ? copy_creds+0x7b/0x470
[  666.948115]  should_fail.cold.4+0xa/0x1a
[  666.952163]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.957250]  ? find_held_lock+0x36/0x1c0
[  666.961310]  ? find_held_lock+0x36/0x1c0
[  666.965365]  ? check_same_owner+0x340/0x340
[  666.969679]  ? rcu_is_watching+0x8c/0x150
[  666.973809]  ? rcu_note_context_switch+0x730/0x730
[  666.978723]  ? security_prepare_creds+0x94/0xc0
[  666.983384]  __should_failslab+0x124/0x180
[  666.987605]  should_failslab+0x9/0x14
[  666.991400]  kmem_cache_alloc+0x2af/0x760
[  666.995532]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  667.000534]  __delayacct_tsk_init+0x20/0x80
[  667.004851]  copy_process.part.39+0x2ba8/0x7250
[  667.009503]  ? __lock_acquire+0x7fc/0x5020
[  667.013722]  ? __lock_acquire+0x7fc/0x5020
[  667.017942]  ? __lock_acquire+0x7fc/0x5020
[  667.022163]  ? __cleanup_sighand+0x70/0x70
[  667.026403]  ? debug_check_no_locks_freed+0x310/0x310
[  667.031577]  ? debug_check_no_locks_freed+0x310/0x310
[  667.036756]  ? print_usage_bug+0xc0/0xc0
[  667.040802]  ? print_usage_bug+0xc0/0xc0
[  667.044849]  ? d_splice_alias+0x7c9/0x11f0
[  667.049063]  ? lock_downgrade+0x8f0/0x8f0
[  667.053205]  ? d_instantiate_anon+0x30/0x30
[  667.057520]  ? __lock_acquire+0x7fc/0x5020
[  667.061742]  ? print_usage_bug+0xc0/0xc0
[  667.065786]  ? debug_check_no_locks_freed+0x310/0x310
[  667.070959]  ? debug_check_no_locks_freed+0x310/0x310
[  667.076130]  ? __lock_acquire+0x7fc/0x5020
[  667.080345]  ? print_usage_bug+0xc0/0xc0
[  667.084389]  ? lock_downgrade+0x8f0/0x8f0
[  667.088525]  ? debug_check_no_locks_freed+0x310/0x310
[  667.093708]  ? print_usage_bug+0xc0/0xc0
[  667.097754]  ? graph_lock+0x170/0x170
[  667.101535]  ? do_raw_spin_lock+0xc1/0x200
[  667.105752]  ? graph_lock+0x170/0x170
[  667.109535]  ? graph_lock+0x170/0x170
[  667.113323]  ? find_held_lock+0x36/0x1c0
[  667.117375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.122904]  ? _parse_integer+0x13b/0x190
[  667.127050]  ? graph_lock+0x170/0x170
[  667.130835]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  667.136357]  ? _kstrtoull+0x188/0x250
[  667.140138]  ? _parse_integer+0x190/0x190
[  667.144269]  ? graph_lock+0x170/0x170
[  667.148075]  ? lock_release+0xa30/0xa30
[  667.152038]  ? find_held_lock+0x36/0x1c0
[  667.156088]  ? lock_downgrade+0x8f0/0x8f0
[  667.160219]  ? kasan_check_read+0x11/0x20
[  667.164357]  ? rcu_is_watching+0x8c/0x150
[  667.168485]  ? pid_task+0x115/0x200
[  667.172101]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  667.176492]  ? save_stack+0xa9/0xd0
[  667.180120]  ? graph_lock+0x170/0x170
[  667.183902]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  667.189430]  ? proc_fail_nth_write+0x9e/0x210
[  667.193920]  ? proc_cwd_link+0x1d0/0x1d0
[  667.197973]  ? kasan_check_read+0x11/0x20
[  667.202121]  ? find_held_lock+0x36/0x1c0
[  667.206170]  _do_fork+0x291/0x12a0
[  667.209696]  ? fork_idle+0x1a0/0x1a0
[  667.213397]  ? __lock_is_held+0xb5/0x140
[  667.217447]  ? __sb_end_write+0xac/0xe0
[  667.221404]  ? vfs_write+0x2a8/0x560
[  667.225104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.230626]  ? ksys_write+0x1ae/0x260
[  667.234409]  ? __ia32_sys_read+0xb0/0xb0
[  667.238456]  ? syscall_slow_exit_work+0x500/0x500
[  667.243288]  __x64_sys_clone+0xbf/0x150
[  667.247260]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  667.252271]  do_syscall_64+0x1b9/0x820
[  667.256143]  ? syscall_return_slowpath+0x5e0/0x5e0
[  667.261058]  ? syscall_return_slowpath+0x31d/0x5e0
[  667.265977]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  667.271328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  667.276161]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  667.281333] RIP: 0033:0x441519
[  667.284503] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  667.303716] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  667.311413] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  667.318667] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  667.325922] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  667.333178] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  667.340433] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  667.353127] FAULT_INJECTION: forcing a failure.
[  667.353127] name failslab, interval 1, probability 0, space 0, times 0
[  667.364436] CPU: 1 PID: 4688 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  667.371537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  667.380909] Call Trace:
[  667.383500]  dump_stack+0x1c9/0x2b4
[  667.387132]  ? dump_stack_print_info.cold.2+0x52/0x52
[  667.392310]  ? save_stack+0x43/0xd0
[  667.395941]  ? kasan_kmalloc+0xc4/0xe0
[  667.399817]  ? kasan_slab_alloc+0x12/0x20
[  667.403959]  ? kmem_cache_alloc+0x12e/0x760
[  667.408271]  ? copy_creds+0x7b/0x470
[  667.411978]  should_fail.cold.4+0xa/0x1a
[  667.416045]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  667.421144]  ? find_held_lock+0x36/0x1c0
[  667.425209]  ? find_held_lock+0x36/0x1c0
[  667.429266]  ? check_same_owner+0x340/0x340
[  667.433574]  ? rcu_is_watching+0x8c/0x150
[  667.437707]  ? rcu_note_context_switch+0x730/0x730
[  667.442624]  ? security_prepare_creds+0x94/0xc0
[  667.447280]  __should_failslab+0x124/0x180
[  667.451505]  should_failslab+0x9/0x14
[  667.455290]  kmem_cache_alloc+0x2af/0x760
[  667.459428]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  667.464446]  __delayacct_tsk_init+0x20/0x80
[  667.468773]  copy_process.part.39+0x2ba8/0x7250
[  667.473436]  ? __lock_acquire+0x7fc/0x5020
[  667.477673]  ? __lock_acquire+0x7fc/0x5020
[  667.481901]  ? __lock_acquire+0x7fc/0x5020
[  667.486133]  ? __cleanup_sighand+0x70/0x70
[  667.490355]  ? debug_check_no_locks_freed+0x310/0x310
[  667.495533]  ? debug_check_no_locks_freed+0x310/0x310
[  667.500708]  ? print_usage_bug+0xc0/0xc0
[  667.504768]  ? print_usage_bug+0xc0/0xc0
[  667.508818]  ? d_splice_alias+0x7c9/0x11f0
[  667.513045]  ? lock_downgrade+0x8f0/0x8f0
[  667.517184]  ? d_instantiate_anon+0x30/0x30
[  667.521495]  ? __lock_acquire+0x7fc/0x5020
[  667.525715]  ? print_usage_bug+0xc0/0xc0
[  667.529774]  ? debug_check_no_locks_freed+0x310/0x310
[  667.534958]  ? debug_check_no_locks_freed+0x310/0x310
[  667.540134]  ? __lock_acquire+0x7fc/0x5020
[  667.544352]  ? print_usage_bug+0xc0/0xc0
[  667.548396]  ? lock_downgrade+0x8f0/0x8f0
[  667.552535]  ? debug_check_no_locks_freed+0x310/0x310
[  667.557713]  ? print_usage_bug+0xc0/0xc0
[  667.561758]  ? graph_lock+0x170/0x170
[  667.565555]  ? do_raw_spin_lock+0xc1/0x200
[  667.569778]  ? graph_lock+0x170/0x170
[  667.573563]  ? graph_lock+0x170/0x170
[  667.577352]  ? find_held_lock+0x36/0x1c0
[  667.581408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.586935]  ? _parse_integer+0x13b/0x190
[  667.591070]  ? graph_lock+0x170/0x170
[  667.594862]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  667.600383]  ? _kstrtoull+0x188/0x250
[  667.604185]  ? _parse_integer+0x190/0x190
[  667.608327]  ? graph_lock+0x170/0x170
[  667.612121]  ? lock_release+0xa30/0xa30
[  667.616081]  ? find_held_lock+0x36/0x1c0
[  667.620133]  ? lock_downgrade+0x8f0/0x8f0
[  667.624272]  ? kasan_check_read+0x11/0x20
[  667.628408]  ? rcu_is_watching+0x8c/0x150
[  667.632543]  ? pid_task+0x115/0x200
[  667.636164]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  667.640564]  ? save_stack+0xa9/0xd0
[  667.644176]  ? graph_lock+0x170/0x170
[  667.647976]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  667.653507]  ? proc_fail_nth_write+0x9e/0x210
[  667.657988]  ? proc_cwd_link+0x1d0/0x1d0
[  667.662048]  ? kasan_check_read+0x11/0x20
[  667.666186]  ? find_held_lock+0x36/0x1c0
[  667.670244]  _do_fork+0x291/0x12a0
[  667.673774]  ? fork_idle+0x1a0/0x1a0
[  667.677484]  ? __lock_is_held+0xb5/0x140
[  667.681537]  ? __sb_end_write+0xac/0xe0
[  667.685507]  ? vfs_write+0x2a8/0x560
[  667.689209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.694728]  ? ksys_write+0x1ae/0x260
[  667.698522]  ? __ia32_sys_read+0xb0/0xb0
[  667.702571]  ? syscall_slow_exit_work+0x500/0x500
[  667.707398]  __x64_sys_clone+0xbf/0x150
[  667.711356]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  667.716357]  do_syscall_64+0x1b9/0x820
[  667.720228]  ? syscall_return_slowpath+0x5e0/0x5e0
[  667.725142]  ? syscall_return_slowpath+0x31d/0x5e0
[  667.730064]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  667.735414]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  667.740258]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  667.745452] RIP: 0033:0x441519
[  667.748632] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  667.767836] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  667.775534] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  667.782789] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  667.790046] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  667.797300] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  667.804556] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  667.815996] FAULT_INJECTION: forcing a failure.
[  667.815996] name failslab, interval 1, probability 0, space 0, times 0
[  667.827331] CPU: 1 PID: 4690 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  667.834430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  667.843782] Call Trace:
[  667.846372]  dump_stack+0x1c9/0x2b4
[  667.849988]  ? dump_stack_print_info.cold.2+0x52/0x52
[  667.855166]  ? save_stack+0x43/0xd0
[  667.858781]  ? kasan_kmalloc+0xc4/0xe0
[  667.862668]  ? kasan_slab_alloc+0x12/0x20
[  667.866806]  ? kmem_cache_alloc+0x12e/0x760
[  667.871114]  ? copy_creds+0x7b/0x470
[  667.874818]  should_fail.cold.4+0xa/0x1a
[  667.878869]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  667.883962]  ? find_held_lock+0x36/0x1c0
[  667.888064]  ? find_held_lock+0x36/0x1c0
[  667.892143]  ? check_same_owner+0x340/0x340
[  667.896460]  ? rcu_is_watching+0x8c/0x150
[  667.900594]  ? rcu_note_context_switch+0x730/0x730
[  667.905523]  ? security_prepare_creds+0x94/0xc0
[  667.910195]  __should_failslab+0x124/0x180
[  667.914422]  should_failslab+0x9/0x14
[  667.918211]  kmem_cache_alloc+0x2af/0x760
[  667.922351]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  667.927374]  __delayacct_tsk_init+0x20/0x80
[  667.931695]  copy_process.part.39+0x2ba8/0x7250
[  667.936361]  ? __lock_acquire+0x7fc/0x5020
[  667.940596]  ? __lock_acquire+0x7fc/0x5020
[  667.944817]  ? __lock_acquire+0x7fc/0x5020
[  667.949052]  ? __cleanup_sighand+0x70/0x70
[  667.953286]  ? debug_check_no_locks_freed+0x310/0x310
[  667.958462]  ? debug_check_no_locks_freed+0x310/0x310
[  667.963643]  ? print_usage_bug+0xc0/0xc0
[  667.967694]  ? print_usage_bug+0xc0/0xc0
[  667.971739]  ? d_splice_alias+0x7c9/0x11f0
[  667.975959]  ? lock_downgrade+0x8f0/0x8f0
[  667.980093]  ? d_instantiate_anon+0x30/0x30
[  667.984403]  ? __lock_acquire+0x7fc/0x5020
[  667.988626]  ? print_usage_bug+0xc0/0xc0
[  667.992675]  ? debug_check_no_locks_freed+0x310/0x310
[  667.997853]  ? debug_check_no_locks_freed+0x310/0x310
[  668.003039]  ? __lock_acquire+0x7fc/0x5020
[  668.007287]  ? print_usage_bug+0xc0/0xc0
[  668.011334]  ? lock_downgrade+0x8f0/0x8f0
[  668.015470]  ? debug_check_no_locks_freed+0x310/0x310
[  668.020662]  ? print_usage_bug+0xc0/0xc0
[  668.024710]  ? graph_lock+0x170/0x170
[  668.028494]  ? do_raw_spin_lock+0xc1/0x200
[  668.032727]  ? graph_lock+0x170/0x170
[  668.036517]  ? graph_lock+0x170/0x170
[  668.040305]  ? find_held_lock+0x36/0x1c0
[  668.044369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.049895]  ? _parse_integer+0x13b/0x190
[  668.054043]  ? graph_lock+0x170/0x170
[  668.057844]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  668.063384]  ? _kstrtoull+0x188/0x250
[  668.067206]  ? _parse_integer+0x190/0x190
[  668.071365]  ? graph_lock+0x170/0x170
[  668.075156]  ? lock_release+0xa30/0xa30
[  668.079131]  ? find_held_lock+0x36/0x1c0
[  668.083192]  ? lock_downgrade+0x8f0/0x8f0
[  668.087333]  ? kasan_check_read+0x11/0x20
[  668.091468]  ? rcu_is_watching+0x8c/0x150
[  668.095613]  ? pid_task+0x115/0x200
[  668.099234]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  668.103642]  ? save_stack+0xa9/0xd0
[  668.107267]  ? graph_lock+0x170/0x170
[  668.111064]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  668.116588]  ? proc_fail_nth_write+0x9e/0x210
[  668.121071]  ? proc_cwd_link+0x1d0/0x1d0
[  668.125123]  ? kasan_check_read+0x11/0x20
[  668.129261]  ? find_held_lock+0x36/0x1c0
[  668.133307]  _do_fork+0x291/0x12a0
[  668.136836]  ? fork_idle+0x1a0/0x1a0
[  668.140536]  ? __lock_is_held+0xb5/0x140
[  668.144588]  ? __sb_end_write+0xac/0xe0
[  668.148544]  ? vfs_write+0x2a8/0x560
[  668.152244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.157774]  ? ksys_write+0x1ae/0x260
[  668.161560]  ? __ia32_sys_read+0xb0/0xb0
[  668.165605]  ? syscall_slow_exit_work+0x500/0x500
[  668.170435]  __x64_sys_clone+0xbf/0x150
[  668.174408]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  668.179411]  do_syscall_64+0x1b9/0x820
[  668.183283]  ? syscall_return_slowpath+0x5e0/0x5e0
[  668.188207]  ? syscall_return_slowpath+0x31d/0x5e0
[  668.193153]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  668.198516]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  668.203345]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  668.208527] RIP: 0033:0x441519
[  668.211703] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  668.230901] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  668.238611] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  668.245869] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  668.253125] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  668.260401] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  668.267656] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  668.281660] FAULT_INJECTION: forcing a failure.
[  668.281660] name failslab, interval 1, probability 0, space 0, times 0
[  668.292932] CPU: 0 PID: 4692 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  668.300021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  668.309369] Call Trace:
[  668.311959]  dump_stack+0x1c9/0x2b4
[  668.315569]  ? dump_stack_print_info.cold.2+0x52/0x52
[  668.320756]  ? save_stack+0x43/0xd0
[  668.324371]  ? kasan_kmalloc+0xc4/0xe0
[  668.328247]  ? kasan_slab_alloc+0x12/0x20
[  668.332389]  ? kmem_cache_alloc+0x12e/0x760
[  668.336707]  ? copy_creds+0x7b/0x470
[  668.340409]  should_fail.cold.4+0xa/0x1a
[  668.344457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.349544]  ? find_held_lock+0x36/0x1c0
[  668.353593]  ? find_held_lock+0x36/0x1c0
[  668.357661]  ? check_same_owner+0x340/0x340
[  668.362437]  ? rcu_is_watching+0x8c/0x150
[  668.366571]  ? rcu_note_context_switch+0x730/0x730
[  668.371484]  ? security_prepare_creds+0x94/0xc0
[  668.376157]  __should_failslab+0x124/0x180
[  668.380393]  should_failslab+0x9/0x14
[  668.384189]  kmem_cache_alloc+0x2af/0x760
[  668.388332]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  668.393344]  __delayacct_tsk_init+0x20/0x80
[  668.397659]  copy_process.part.39+0x2ba8/0x7250
[  668.402323]  ? __lock_acquire+0x7fc/0x5020
[  668.406551]  ? __lock_acquire+0x7fc/0x5020
[  668.410775]  ? __lock_acquire+0x7fc/0x5020
[  668.414998]  ? __cleanup_sighand+0x70/0x70
[  668.419232]  ? debug_check_no_locks_freed+0x310/0x310
[  668.424403]  ? debug_check_no_locks_freed+0x310/0x310
[  668.429577]  ? print_usage_bug+0xc0/0xc0
[  668.433632]  ? print_usage_bug+0xc0/0xc0
[  668.437685]  ? d_splice_alias+0x7c9/0x11f0
[  668.441900]  ? lock_downgrade+0x8f0/0x8f0
[  668.446049]  ? d_instantiate_anon+0x30/0x30
[  668.450357]  ? __lock_acquire+0x7fc/0x5020
[  668.454578]  ? print_usage_bug+0xc0/0xc0
[  668.458650]  ? debug_check_no_locks_freed+0x310/0x310
[  668.463829]  ? debug_check_no_locks_freed+0x310/0x310
[  668.469018]  ? __lock_acquire+0x7fc/0x5020
[  668.473248]  ? print_usage_bug+0xc0/0xc0
[  668.477290]  ? lock_downgrade+0x8f0/0x8f0
[  668.481448]  ? debug_check_no_locks_freed+0x310/0x310
[  668.486625]  ? print_usage_bug+0xc0/0xc0
[  668.490665]  ? graph_lock+0x170/0x170
[  668.494457]  ? do_raw_spin_lock+0xc1/0x200
[  668.498693]  ? graph_lock+0x170/0x170
[  668.502477]  ? graph_lock+0x170/0x170
[  668.506263]  ? find_held_lock+0x36/0x1c0
[  668.510308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.515825]  ? _parse_integer+0x13b/0x190
[  668.519953]  ? graph_lock+0x170/0x170
[  668.523744]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  668.529267]  ? _kstrtoull+0x188/0x250
[  668.533047]  ? _parse_integer+0x190/0x190
[  668.537186]  ? graph_lock+0x170/0x170
[  668.540968]  ? lock_release+0xa30/0xa30
[  668.544926]  ? find_held_lock+0x36/0x1c0
[  668.548982]  ? lock_downgrade+0x8f0/0x8f0
[  668.553128]  ? kasan_check_read+0x11/0x20
[  668.557267]  ? rcu_is_watching+0x8c/0x150
[  668.561405]  ? pid_task+0x115/0x200
[  668.565022]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  668.569428]  ? save_stack+0xa9/0xd0
[  668.573041]  ? graph_lock+0x170/0x170
[  668.576825]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  668.582347]  ? proc_fail_nth_write+0x9e/0x210
[  668.586822]  ? proc_cwd_link+0x1d0/0x1d0
[  668.590878]  ? kasan_check_read+0x11/0x20
[  668.595011]  ? find_held_lock+0x36/0x1c0
[  668.599066]  _do_fork+0x291/0x12a0
[  668.602592]  ? fork_idle+0x1a0/0x1a0
[  668.606292]  ? __lock_is_held+0xb5/0x140
[  668.610341]  ? __sb_end_write+0xac/0xe0
[  668.614296]  ? vfs_write+0x2a8/0x560
[  668.617998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.623521]  ? ksys_write+0x1ae/0x260
[  668.627310]  ? __ia32_sys_read+0xb0/0xb0
[  668.631366]  ? syscall_slow_exit_work+0x500/0x500
[  668.636197]  __x64_sys_clone+0xbf/0x150
[  668.640159]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  668.645168]  do_syscall_64+0x1b9/0x820
[  668.649043]  ? syscall_return_slowpath+0x5e0/0x5e0
[  668.653954]  ? syscall_return_slowpath+0x31d/0x5e0
[  668.658893]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  668.664262]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  668.669098]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  668.674269] RIP: 0033:0x441519
[  668.677437] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  668.696624] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  668.704316] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  668.711568] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  668.718816] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  668.726064] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  668.733314] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  668.745893] FAULT_INJECTION: forcing a failure.
[  668.745893] name failslab, interval 1, probability 0, space 0, times 0
[  668.757119] CPU: 0 PID: 4694 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  668.764203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  668.773556] Call Trace:
[  668.776141]  dump_stack+0x1c9/0x2b4
[  668.779759]  ? dump_stack_print_info.cold.2+0x52/0x52
[  668.784945]  ? save_stack+0x43/0xd0
[  668.788558]  ? kasan_kmalloc+0xc4/0xe0
[  668.792436]  ? kasan_slab_alloc+0x12/0x20
[  668.796571]  ? kmem_cache_alloc+0x12e/0x760
[  668.800886]  ? copy_creds+0x7b/0x470
[  668.804593]  should_fail.cold.4+0xa/0x1a
[  668.808646]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.813755]  ? find_held_lock+0x36/0x1c0
[  668.817819]  ? find_held_lock+0x36/0x1c0
[  668.821877]  ? check_same_owner+0x340/0x340
[  668.826184]  ? rcu_is_watching+0x8c/0x150
[  668.830320]  ? rcu_note_context_switch+0x730/0x730
[  668.835239]  ? security_prepare_creds+0x94/0xc0
[  668.839907]  __should_failslab+0x124/0x180
[  668.844140]  should_failslab+0x9/0x14
[  668.847927]  kmem_cache_alloc+0x2af/0x760
[  668.852063]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  668.857092]  __delayacct_tsk_init+0x20/0x80
[  668.861402]  copy_process.part.39+0x2ba8/0x7250
[  668.866066]  ? __lock_acquire+0x7fc/0x5020
[  668.870286]  ? __lock_acquire+0x7fc/0x5020
[  668.874503]  ? __lock_acquire+0x7fc/0x5020
[  668.878727]  ? __cleanup_sighand+0x70/0x70
[  668.882946]  ? debug_check_no_locks_freed+0x310/0x310
[  668.888119]  ? debug_check_no_locks_freed+0x310/0x310
[  668.893290]  ? print_usage_bug+0xc0/0xc0
[  668.897335]  ? print_usage_bug+0xc0/0xc0
[  668.901378]  ? d_splice_alias+0x7c9/0x11f0
[  668.905596]  ? lock_downgrade+0x8f0/0x8f0
[  668.909737]  ? d_instantiate_anon+0x30/0x30
[  668.914047]  ? __lock_acquire+0x7fc/0x5020
[  668.918278]  ? print_usage_bug+0xc0/0xc0
[  668.922322]  ? debug_check_no_locks_freed+0x310/0x310
[  668.927497]  ? debug_check_no_locks_freed+0x310/0x310
[  668.932682]  ? __lock_acquire+0x7fc/0x5020
[  668.936898]  ? print_usage_bug+0xc0/0xc0
[  668.940952]  ? lock_downgrade+0x8f0/0x8f0
[  668.945086]  ? debug_check_no_locks_freed+0x310/0x310
[  668.950267]  ? print_usage_bug+0xc0/0xc0
[  668.954310]  ? graph_lock+0x170/0x170
[  668.958095]  ? do_raw_spin_lock+0xc1/0x200
[  668.962312]  ? graph_lock+0x170/0x170
[  668.966097]  ? graph_lock+0x170/0x170
[  668.969897]  ? find_held_lock+0x36/0x1c0
[  668.973952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.979472]  ? _parse_integer+0x13b/0x190
[  668.983616]  ? graph_lock+0x170/0x170
[  668.987400]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  668.992923]  ? _kstrtoull+0x188/0x250
[  668.996704]  ? _parse_integer+0x190/0x190
[  669.000836]  ? graph_lock+0x170/0x170
[  669.004620]  ? lock_release+0xa30/0xa30
[  669.008593]  ? find_held_lock+0x36/0x1c0
[  669.012641]  ? lock_downgrade+0x8f0/0x8f0
[  669.016786]  ? kasan_check_read+0x11/0x20
[  669.020914]  ? rcu_is_watching+0x8c/0x150
[  669.025052]  ? pid_task+0x115/0x200
[  669.028667]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  669.033072]  ? save_stack+0xa9/0xd0
[  669.036691]  ? graph_lock+0x170/0x170
[  669.040476]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  669.046003]  ? proc_fail_nth_write+0x9e/0x210
[  669.050487]  ? proc_cwd_link+0x1d0/0x1d0
[  669.054550]  ? kasan_check_read+0x11/0x20
[  669.058692]  ? find_held_lock+0x36/0x1c0
[  669.062755]  _do_fork+0x291/0x12a0
[  669.066284]  ? fork_idle+0x1a0/0x1a0
[  669.069983]  ? __lock_is_held+0xb5/0x140
[  669.074055]  ? __sb_end_write+0xac/0xe0
[  669.078063]  ? vfs_write+0x2a8/0x560
[  669.081777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.087306]  ? ksys_write+0x1ae/0x260
[  669.091095]  ? __ia32_sys_read+0xb0/0xb0
[  669.095156]  ? syscall_slow_exit_work+0x500/0x500
[  669.099985]  __x64_sys_clone+0xbf/0x150
[  669.103945]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  669.108946]  do_syscall_64+0x1b9/0x820
[  669.112825]  ? syscall_return_slowpath+0x5e0/0x5e0
[  669.117747]  ? syscall_return_slowpath+0x31d/0x5e0
[  669.122668]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  669.128043]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.132881]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  669.138053] RIP: 0033:0x441519
[  669.141234] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  669.160409] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  669.168122] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  669.175385] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  669.182638] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  669.189893] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  669.197157] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  669.211118] FAULT_INJECTION: forcing a failure.
[  669.211118] name failslab, interval 1, probability 0, space 0, times 0
[  669.223111] CPU: 1 PID: 4696 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  669.230211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  669.239553] Call Trace:
[  669.242134]  dump_stack+0x1c9/0x2b4
[  669.245749]  ? dump_stack_print_info.cold.2+0x52/0x52
[  669.250963]  ? save_stack+0x43/0xd0
[  669.254574]  ? kasan_kmalloc+0xc4/0xe0
[  669.258448]  ? kasan_slab_alloc+0x12/0x20
[  669.262581]  ? kmem_cache_alloc+0x12e/0x760
[  669.266887]  ? copy_creds+0x7b/0x470
[  669.270589]  should_fail.cold.4+0xa/0x1a
[  669.274635]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  669.279735]  ? find_held_lock+0x36/0x1c0
[  669.283787]  ? find_held_lock+0x36/0x1c0
[  669.287856]  ? check_same_owner+0x340/0x340
[  669.292176]  ? rcu_is_watching+0x8c/0x150
[  669.296317]  ? rcu_note_context_switch+0x730/0x730
[  669.301242]  ? security_prepare_creds+0x94/0xc0
[  669.305908]  __should_failslab+0x124/0x180
[  669.310130]  should_failslab+0x9/0x14
[  669.313914]  kmem_cache_alloc+0x2af/0x760
[  669.318078]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  669.323092]  __delayacct_tsk_init+0x20/0x80
[  669.327414]  copy_process.part.39+0x2ba8/0x7250
[  669.332083]  ? __lock_acquire+0x7fc/0x5020
[  669.336304]  ? __lock_acquire+0x7fc/0x5020
[  669.340523]  ? __lock_acquire+0x7fc/0x5020
[  669.344747]  ? __cleanup_sighand+0x70/0x70
[  669.348965]  ? debug_check_no_locks_freed+0x310/0x310
[  669.354136]  ? debug_check_no_locks_freed+0x310/0x310
[  669.359310]  ? print_usage_bug+0xc0/0xc0
[  669.363357]  ? print_usage_bug+0xc0/0xc0
[  669.367402]  ? d_splice_alias+0x7c9/0x11f0
[  669.371618]  ? lock_downgrade+0x8f0/0x8f0
[  669.375748]  ? d_instantiate_anon+0x30/0x30
[  669.380065]  ? __lock_acquire+0x7fc/0x5020
[  669.384299]  ? print_usage_bug+0xc0/0xc0
[  669.388362]  ? debug_check_no_locks_freed+0x310/0x310
[  669.393548]  ? debug_check_no_locks_freed+0x310/0x310
[  669.398725]  ? __lock_acquire+0x7fc/0x5020
[  669.402943]  ? print_usage_bug+0xc0/0xc0
[  669.406987]  ? lock_downgrade+0x8f0/0x8f0
[  669.411125]  ? debug_check_no_locks_freed+0x310/0x310
[  669.416301]  ? print_usage_bug+0xc0/0xc0
[  669.420345]  ? graph_lock+0x170/0x170
[  669.424143]  ? do_raw_spin_lock+0xc1/0x200
[  669.428375]  ? graph_lock+0x170/0x170
[  669.432168]  ? graph_lock+0x170/0x170
[  669.435956]  ? find_held_lock+0x36/0x1c0
[  669.440004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.445547]  ? _parse_integer+0x13b/0x190
[  669.449683]  ? graph_lock+0x170/0x170
[  669.453487]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  669.459115]  ? _kstrtoull+0x188/0x250
[  669.462900]  ? _parse_integer+0x190/0x190
[  669.467064]  ? graph_lock+0x170/0x170
[  669.470847]  ? lock_release+0xa30/0xa30
[  669.474813]  ? find_held_lock+0x36/0x1c0
[  669.478861]  ? lock_downgrade+0x8f0/0x8f0
[  669.482997]  ? kasan_check_read+0x11/0x20
[  669.487130]  ? rcu_is_watching+0x8c/0x150
[  669.491264]  ? pid_task+0x115/0x200
[  669.494872]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  669.499285]  ? save_stack+0xa9/0xd0
[  669.502908]  ? graph_lock+0x170/0x170
[  669.506692]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  669.512222]  ? proc_fail_nth_write+0x9e/0x210
[  669.516700]  ? proc_cwd_link+0x1d0/0x1d0
[  669.520752]  ? kasan_check_read+0x11/0x20
[  669.524903]  ? find_held_lock+0x36/0x1c0
[  669.528952]  _do_fork+0x291/0x12a0
[  669.532480]  ? fork_idle+0x1a0/0x1a0
[  669.536188]  ? __lock_is_held+0xb5/0x140
[  669.540237]  ? retint_kernel+0x10/0x10
[  669.544111]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  669.549131]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  669.553882]  ? retint_kernel+0x10/0x10
[  669.557773]  __x64_sys_clone+0xbf/0x150
[  669.561733]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  669.566737]  do_syscall_64+0x1b9/0x820
[  669.570623]  ? syscall_return_slowpath+0x5e0/0x5e0
[  669.575538]  ? syscall_return_slowpath+0x31d/0x5e0
[  669.580465]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  669.585817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.590647]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  669.595820] RIP: 0033:0x441519
[  669.598989] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  669.618223] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  669.625924] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  669.633183] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  669.640442] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  669.647696] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  669.654950] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  669.666295] FAULT_INJECTION: forcing a failure.
[  669.666295] name failslab, interval 1, probability 0, space 0, times 0
[  669.677641] CPU: 1 PID: 4698 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  669.684734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  669.694072] Call Trace:
[  669.696669]  dump_stack+0x1c9/0x2b4
[  669.700281]  ? dump_stack_print_info.cold.2+0x52/0x52
[  669.705485]  ? save_stack+0x43/0xd0
[  669.709097]  ? kasan_kmalloc+0xc4/0xe0
[  669.712986]  ? kasan_slab_alloc+0x12/0x20
[  669.717129]  ? kmem_cache_alloc+0x12e/0x760
[  669.721448]  ? copy_creds+0x7b/0x470
[  669.725149]  should_fail.cold.4+0xa/0x1a
[  669.729199]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  669.734289]  ? find_held_lock+0x36/0x1c0
[  669.738340]  ? find_held_lock+0x36/0x1c0
[  669.742393]  ? check_same_owner+0x340/0x340
[  669.746712]  ? rcu_is_watching+0x8c/0x150
[  669.750844]  ? rcu_note_context_switch+0x730/0x730
[  669.755759]  ? security_prepare_creds+0x94/0xc0
[  669.760415]  __should_failslab+0x124/0x180
[  669.764634]  should_failslab+0x9/0x14
[  669.768417]  kmem_cache_alloc+0x2af/0x760
[  669.772560]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  669.777577]  __delayacct_tsk_init+0x20/0x80
[  669.781896]  copy_process.part.39+0x2ba8/0x7250
[  669.786555]  ? __lock_acquire+0x7fc/0x5020
[  669.790776]  ? __lock_acquire+0x7fc/0x5020
[  669.794991]  ? __lock_acquire+0x7fc/0x5020
[  669.799227]  ? __cleanup_sighand+0x70/0x70
[  669.803446]  ? debug_check_no_locks_freed+0x310/0x310
[  669.808619]  ? debug_check_no_locks_freed+0x310/0x310
[  669.813791]  ? print_usage_bug+0xc0/0xc0
[  669.817839]  ? print_usage_bug+0xc0/0xc0
[  669.821887]  ? d_splice_alias+0x7c9/0x11f0
[  669.826104]  ? lock_downgrade+0x8f0/0x8f0
[  669.830245]  ? d_instantiate_anon+0x30/0x30
[  669.834563]  ? __lock_acquire+0x7fc/0x5020
[  669.838784]  ? print_usage_bug+0xc0/0xc0
[  669.842845]  ? debug_check_no_locks_freed+0x310/0x310
[  669.848039]  ? debug_check_no_locks_freed+0x310/0x310
[  669.853225]  ? __lock_acquire+0x7fc/0x5020
[  669.857441]  ? print_usage_bug+0xc0/0xc0
[  669.861486]  ? lock_downgrade+0x8f0/0x8f0
[  669.865623]  ? debug_check_no_locks_freed+0x310/0x310
[  669.870797]  ? print_usage_bug+0xc0/0xc0
[  669.874841]  ? graph_lock+0x170/0x170
[  669.878622]  ? do_raw_spin_lock+0xc1/0x200
[  669.882842]  ? graph_lock+0x170/0x170
[  669.886628]  ? graph_lock+0x170/0x170
[  669.890414]  ? find_held_lock+0x36/0x1c0
[  669.894459]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.899984]  ? _parse_integer+0x13b/0x190
[  669.904131]  ? graph_lock+0x170/0x170
[  669.907937]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  669.913463]  ? _kstrtoull+0x188/0x250
[  669.917252]  ? _parse_integer+0x190/0x190
[  669.921385]  ? graph_lock+0x170/0x170
[  669.925178]  ? lock_release+0xa30/0xa30
[  669.929149]  ? find_held_lock+0x36/0x1c0
[  669.933208]  ? lock_downgrade+0x8f0/0x8f0
[  669.937368]  ? kasan_check_read+0x11/0x20
[  669.941498]  ? rcu_is_watching+0x8c/0x150
[  669.945643]  ? pid_task+0x115/0x200
[  669.949261]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  669.953655]  ? save_stack+0xa9/0xd0
[  669.957266]  ? graph_lock+0x170/0x170
[  669.961061]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  669.966584]  ? proc_fail_nth_write+0x9e/0x210
[  669.971063]  ? proc_cwd_link+0x1d0/0x1d0
[  669.975111]  ? kasan_check_read+0x11/0x20
[  669.979246]  ? find_held_lock+0x36/0x1c0
[  669.983292]  _do_fork+0x291/0x12a0
[  669.986817]  ? fork_idle+0x1a0/0x1a0
[  669.990517]  ? __lock_is_held+0xb5/0x140
[  669.994567]  ? __sb_end_write+0xac/0xe0
[  669.998523]  ? vfs_write+0x2a8/0x560
[  670.002238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.007777]  ? ksys_write+0x1ae/0x260
[  670.011562]  ? __ia32_sys_read+0xb0/0xb0
[  670.015609]  ? syscall_slow_exit_work+0x500/0x500
[  670.020440]  __x64_sys_clone+0xbf/0x150
[  670.024397]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  670.029397]  do_syscall_64+0x1b9/0x820
[  670.033267]  ? syscall_return_slowpath+0x5e0/0x5e0
[  670.038191]  ? syscall_return_slowpath+0x31d/0x5e0
[  670.043109]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  670.048458]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  670.053290]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  670.058469] RIP: 0033:0x441519
[  670.061647] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  670.080854] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  670.088571] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  670.095837] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  670.103093] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  670.110344] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  670.117595] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  670.129128] FAULT_INJECTION: forcing a failure.
[  670.129128] name failslab, interval 1, probability 0, space 0, times 0
[  670.140430] CPU: 1 PID: 4700 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  670.147523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  670.156865] Call Trace:
[  670.159456]  dump_stack+0x1c9/0x2b4
[  670.163071]  ? dump_stack_print_info.cold.2+0x52/0x52
[  670.168253]  ? save_stack+0x43/0xd0
[  670.171866]  ? kasan_kmalloc+0xc4/0xe0
[  670.175736]  ? kasan_slab_alloc+0x12/0x20
[  670.179874]  ? kmem_cache_alloc+0x12e/0x760
[  670.184192]  ? copy_creds+0x7b/0x470
[  670.187916]  should_fail.cold.4+0xa/0x1a
[  670.191994]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.197100]  ? find_held_lock+0x36/0x1c0
[  670.201161]  ? find_held_lock+0x36/0x1c0
[  670.205216]  ? check_same_owner+0x340/0x340
[  670.209532]  ? rcu_is_watching+0x8c/0x150
[  670.213664]  ? rcu_note_context_switch+0x730/0x730
[  670.218594]  ? security_prepare_creds+0x94/0xc0
[  670.223249]  __should_failslab+0x124/0x180
[  670.227475]  should_failslab+0x9/0x14
[  670.231279]  kmem_cache_alloc+0x2af/0x760
[  670.235426]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  670.240433]  __delayacct_tsk_init+0x20/0x80
[  670.244761]  copy_process.part.39+0x2ba8/0x7250
[  670.249432]  ? __lock_acquire+0x7fc/0x5020
[  670.253657]  ? __lock_acquire+0x7fc/0x5020
[  670.257875]  ? __lock_acquire+0x7fc/0x5020
[  670.262100]  ? __cleanup_sighand+0x70/0x70
[  670.266347]  ? debug_check_no_locks_freed+0x310/0x310
[  670.271527]  ? debug_check_no_locks_freed+0x310/0x310
[  670.276714]  ? print_usage_bug+0xc0/0xc0
[  670.280762]  ? print_usage_bug+0xc0/0xc0
[  670.284807]  ? d_splice_alias+0x7c9/0x11f0
[  670.289032]  ? lock_downgrade+0x8f0/0x8f0
[  670.293174]  ? d_instantiate_anon+0x30/0x30
[  670.297490]  ? __lock_acquire+0x7fc/0x5020
[  670.301708]  ? print_usage_bug+0xc0/0xc0
[  670.305758]  ? debug_check_no_locks_freed+0x310/0x310
[  670.310933]  ? debug_check_no_locks_freed+0x310/0x310
[  670.316106]  ? __lock_acquire+0x7fc/0x5020
[  670.320321]  ? print_usage_bug+0xc0/0xc0
[  670.324384]  ? lock_downgrade+0x8f0/0x8f0
[  670.328519]  ? debug_check_no_locks_freed+0x310/0x310
[  670.333695]  ? print_usage_bug+0xc0/0xc0
[  670.337748]  ? graph_lock+0x170/0x170
[  670.341550]  ? do_raw_spin_lock+0xc1/0x200
[  670.345769]  ? graph_lock+0x170/0x170
[  670.349553]  ? graph_lock+0x170/0x170
[  670.353342]  ? find_held_lock+0x36/0x1c0
[  670.357386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.362914]  ? _parse_integer+0x13b/0x190
[  670.367046]  ? graph_lock+0x170/0x170
[  670.370841]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  670.376371]  ? _kstrtoull+0x188/0x250
[  670.380164]  ? _parse_integer+0x190/0x190
[  670.384296]  ? graph_lock+0x170/0x170
[  670.388084]  ? lock_release+0xa30/0xa30
[  670.392046]  ? find_held_lock+0x36/0x1c0
[  670.396095]  ? lock_downgrade+0x8f0/0x8f0
[  670.400232]  ? kasan_check_read+0x11/0x20
[  670.404376]  ? rcu_is_watching+0x8c/0x150
[  670.408508]  ? pid_task+0x115/0x200
[  670.412115]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  670.416521]  ? save_stack+0xa9/0xd0
[  670.420134]  ? graph_lock+0x170/0x170
[  670.423944]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  670.429473]  ? proc_fail_nth_write+0x9e/0x210
[  670.433950]  ? proc_cwd_link+0x1d0/0x1d0
[  670.437995]  ? kasan_check_read+0x11/0x20
[  670.442131]  ? find_held_lock+0x36/0x1c0
[  670.446177]  _do_fork+0x291/0x12a0
[  670.449705]  ? fork_idle+0x1a0/0x1a0
[  670.453403]  ? __lock_is_held+0xb5/0x140
[  670.457453]  ? __sb_end_write+0xac/0xe0
[  670.461407]  ? vfs_write+0x2a8/0x560
[  670.465107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.470623]  ? ksys_write+0x1ae/0x260
[  670.474407]  ? __ia32_sys_read+0xb0/0xb0
[  670.478466]  ? syscall_slow_exit_work+0x500/0x500
[  670.483306]  __x64_sys_clone+0xbf/0x150
[  670.487273]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  670.492274]  do_syscall_64+0x1b9/0x820
[  670.496145]  ? syscall_return_slowpath+0x5e0/0x5e0
[  670.501064]  ? syscall_return_slowpath+0x31d/0x5e0
[  670.505980]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  670.511352]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  670.516180]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  670.521350] RIP: 0033:0x441519
[  670.524515] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  670.543696] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  670.551390] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  670.558642] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  670.565893] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  670.573153] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  670.580414] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  670.591691] FAULT_INJECTION: forcing a failure.
[  670.591691] name failslab, interval 1, probability 0, space 0, times 0
[  670.602956] CPU: 1 PID: 4702 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  670.610052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  670.619399] Call Trace:
[  670.621974]  dump_stack+0x1c9/0x2b4
[  670.625585]  ? dump_stack_print_info.cold.2+0x52/0x52
[  670.630760]  ? save_stack+0x43/0xd0
[  670.634367]  ? kasan_kmalloc+0xc4/0xe0
[  670.638256]  ? kasan_slab_alloc+0x12/0x20
[  670.642417]  ? kmem_cache_alloc+0x12e/0x760
[  670.646724]  ? copy_creds+0x7b/0x470
[  670.650427]  should_fail.cold.4+0xa/0x1a
[  670.654485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.659583]  ? find_held_lock+0x36/0x1c0
[  670.663663]  ? find_held_lock+0x36/0x1c0
[  670.667725]  ? check_same_owner+0x340/0x340
[  670.672039]  ? rcu_is_watching+0x8c/0x150
[  670.676173]  ? rcu_note_context_switch+0x730/0x730
[  670.681112]  ? security_prepare_creds+0x94/0xc0
[  670.685779]  __should_failslab+0x124/0x180
[  670.690023]  should_failslab+0x9/0x14
[  670.693817]  kmem_cache_alloc+0x2af/0x760
[  670.697955]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  670.702965]  __delayacct_tsk_init+0x20/0x80
[  670.707289]  copy_process.part.39+0x2ba8/0x7250
[  670.711956]  ? __lock_acquire+0x7fc/0x5020
[  670.716189]  ? __lock_acquire+0x7fc/0x5020
[  670.720415]  ? __lock_acquire+0x7fc/0x5020
[  670.724644]  ? __cleanup_sighand+0x70/0x70
[  670.728882]  ? debug_check_no_locks_freed+0x310/0x310
[  670.734063]  ? debug_check_no_locks_freed+0x310/0x310
[  670.739238]  ? print_usage_bug+0xc0/0xc0
[  670.743284]  ? print_usage_bug+0xc0/0xc0
[  670.747327]  ? d_splice_alias+0x7c9/0x11f0
[  670.751542]  ? lock_downgrade+0x8f0/0x8f0
[  670.755687]  ? d_instantiate_anon+0x30/0x30
[  670.759992]  ? __lock_acquire+0x7fc/0x5020
[  670.764225]  ? print_usage_bug+0xc0/0xc0
[  670.768276]  ? debug_check_no_locks_freed+0x310/0x310
[  670.773453]  ? debug_check_no_locks_freed+0x310/0x310
[  670.778628]  ? __lock_acquire+0x7fc/0x5020
[  670.782844]  ? print_usage_bug+0xc0/0xc0
[  670.786897]  ? lock_downgrade+0x8f0/0x8f0
[  670.791046]  ? debug_check_no_locks_freed+0x310/0x310
[  670.796222]  ? print_usage_bug+0xc0/0xc0
[  670.800267]  ? graph_lock+0x170/0x170
[  670.804053]  ? do_raw_spin_lock+0xc1/0x200
[  670.808274]  ? graph_lock+0x170/0x170
[  670.812059]  ? graph_lock+0x170/0x170
[  670.815848]  ? find_held_lock+0x36/0x1c0
[  670.819908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.825439]  ? _parse_integer+0x13b/0x190
[  670.829571]  ? graph_lock+0x170/0x170
[  670.833367]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  670.838887]  ? _kstrtoull+0x188/0x250
[  670.842671]  ? _parse_integer+0x190/0x190
[  670.846809]  ? graph_lock+0x170/0x170
[  670.850595]  ? lock_release+0xa30/0xa30
[  670.854567]  ? find_held_lock+0x36/0x1c0
[  670.858616]  ? lock_downgrade+0x8f0/0x8f0
[  670.862752]  ? kasan_check_read+0x11/0x20
[  670.866881]  ? rcu_is_watching+0x8c/0x150
[  670.871032]  ? pid_task+0x115/0x200
[  670.874652]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  670.879049]  ? save_stack+0xa9/0xd0
[  670.882662]  ? graph_lock+0x170/0x170
[  670.886446]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  670.891966]  ? proc_fail_nth_write+0x9e/0x210
[  670.896443]  ? proc_cwd_link+0x1d0/0x1d0
[  670.900502]  ? kasan_check_read+0x11/0x20
[  670.904644]  ? find_held_lock+0x36/0x1c0
[  670.908691]  _do_fork+0x291/0x12a0
[  670.912240]  ? fork_idle+0x1a0/0x1a0
[  670.915950]  ? __lock_is_held+0xb5/0x140
[  670.920001]  ? __sb_end_write+0xac/0xe0
[  670.923964]  ? vfs_write+0x2a8/0x560
[  670.927665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.933185]  ? ksys_write+0x1ae/0x260
[  670.936965]  ? __ia32_sys_read+0xb0/0xb0
[  670.941012]  ? syscall_slow_exit_work+0x500/0x500
[  670.945848]  __x64_sys_clone+0xbf/0x150
[  670.949808]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  670.954827]  do_syscall_64+0x1b9/0x820
[  670.958704]  ? syscall_return_slowpath+0x5e0/0x5e0
[  670.963621]  ? syscall_return_slowpath+0x31d/0x5e0
[  670.968546]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  670.973899]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  670.978732]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  670.983932] RIP: 0033:0x441519
[  670.987100] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  671.006274] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  671.013979] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  671.021238] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  671.028499] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  671.035755] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  671.043354] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  671.055231] FAULT_INJECTION: forcing a failure.
[  671.055231] name failslab, interval 1, probability 0, space 0, times 0
[  671.066521] CPU: 1 PID: 4704 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  671.073614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  671.082946] Call Trace:
[  671.085525]  dump_stack+0x1c9/0x2b4
[  671.089138]  ? dump_stack_print_info.cold.2+0x52/0x52
[  671.094332]  ? save_stack+0x43/0xd0
[  671.097958]  ? kasan_kmalloc+0xc4/0xe0
[  671.101843]  ? kasan_slab_alloc+0x12/0x20
[  671.105971]  ? kmem_cache_alloc+0x12e/0x760
[  671.110279]  ? copy_creds+0x7b/0x470
[  671.113979]  should_fail.cold.4+0xa/0x1a
[  671.118037]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  671.123137]  ? find_held_lock+0x36/0x1c0
[  671.127195]  ? find_held_lock+0x36/0x1c0
[  671.131249]  ? check_same_owner+0x340/0x340
[  671.135553]  ? rcu_is_watching+0x8c/0x150
[  671.139683]  ? rcu_note_context_switch+0x730/0x730
[  671.144598]  ? security_prepare_creds+0x94/0xc0
[  671.149256]  __should_failslab+0x124/0x180
[  671.153475]  should_failslab+0x9/0x14
[  671.157257]  kmem_cache_alloc+0x2af/0x760
[  671.161388]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  671.166389]  __delayacct_tsk_init+0x20/0x80
[  671.170695]  copy_process.part.39+0x2ba8/0x7250
[  671.175356]  ? __lock_acquire+0x7fc/0x5020
[  671.179587]  ? __lock_acquire+0x7fc/0x5020
[  671.183803]  ? __lock_acquire+0x7fc/0x5020
[  671.188052]  ? __cleanup_sighand+0x70/0x70
[  671.192276]  ? debug_check_no_locks_freed+0x310/0x310
[  671.197933]  ? debug_check_no_locks_freed+0x310/0x310
[  671.203104]  ? print_usage_bug+0xc0/0xc0
[  671.207154]  ? print_usage_bug+0xc0/0xc0
[  671.211211]  ? d_splice_alias+0x7c9/0x11f0
[  671.215427]  ? lock_downgrade+0x8f0/0x8f0
[  671.219556]  ? d_instantiate_anon+0x30/0x30
[  671.223861]  ? __lock_acquire+0x7fc/0x5020
[  671.228082]  ? print_usage_bug+0xc0/0xc0
[  671.232127]  ? debug_check_no_locks_freed+0x310/0x310
[  671.237300]  ? debug_check_no_locks_freed+0x310/0x310
[  671.242471]  ? __lock_acquire+0x7fc/0x5020
[  671.246689]  ? print_usage_bug+0xc0/0xc0
[  671.250732]  ? lock_downgrade+0x8f0/0x8f0
[  671.254868]  ? debug_check_no_locks_freed+0x310/0x310
[  671.260055]  ? print_usage_bug+0xc0/0xc0
[  671.264105]  ? graph_lock+0x170/0x170
[  671.267896]  ? do_raw_spin_lock+0xc1/0x200
[  671.272114]  ? graph_lock+0x170/0x170
[  671.275901]  ? graph_lock+0x170/0x170
[  671.279700]  ? find_held_lock+0x36/0x1c0
[  671.283760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.289280]  ? _parse_integer+0x13b/0x190
[  671.293420]  ? graph_lock+0x170/0x170
[  671.297217]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  671.302738]  ? _kstrtoull+0x188/0x250
[  671.306532]  ? _parse_integer+0x190/0x190
[  671.310674]  ? graph_lock+0x170/0x170
[  671.314457]  ? lock_release+0xa30/0xa30
[  671.318426]  ? find_held_lock+0x36/0x1c0
[  671.322475]  ? lock_downgrade+0x8f0/0x8f0
[  671.326616]  ? kasan_check_read+0x11/0x20
[  671.330747]  ? rcu_is_watching+0x8c/0x150
[  671.334878]  ? pid_task+0x115/0x200
[  671.338492]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  671.342889]  ? save_stack+0xa9/0xd0
[  671.346503]  ? graph_lock+0x170/0x170
[  671.350288]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  671.355809]  ? proc_fail_nth_write+0x9e/0x210
[  671.360286]  ? proc_cwd_link+0x1d0/0x1d0
[  671.364330]  ? kasan_check_read+0x11/0x20
[  671.368470]  ? find_held_lock+0x36/0x1c0
[  671.372518]  _do_fork+0x291/0x12a0
[  671.376059]  ? fork_idle+0x1a0/0x1a0
[  671.379780]  ? __lock_is_held+0xb5/0x140
[  671.383830]  ? __sb_end_write+0xac/0xe0
[  671.387789]  ? vfs_write+0x2a8/0x560
[  671.391492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.397013]  ? ksys_write+0x1ae/0x260
[  671.400805]  ? __ia32_sys_read+0xb0/0xb0
[  671.404860]  ? syscall_slow_exit_work+0x500/0x500
[  671.409693]  __x64_sys_clone+0xbf/0x150
[  671.413650]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  671.418659]  do_syscall_64+0x1b9/0x820
[  671.422530]  ? syscall_return_slowpath+0x5e0/0x5e0
[  671.427447]  ? syscall_return_slowpath+0x31d/0x5e0
[  671.432376]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  671.437735]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  671.442569]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  671.447749] RIP: 0033:0x441519
[  671.450916] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  671.470106] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  671.477808] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  671.485061] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  671.492314] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  671.499567] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  671.506827] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  671.518179] FAULT_INJECTION: forcing a failure.
[  671.518179] name failslab, interval 1, probability 0, space 0, times 0
[  671.529424] CPU: 1 PID: 4706 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  671.536505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  671.545851] Call Trace:
[  671.548437]  dump_stack+0x1c9/0x2b4
[  671.552051]  ? dump_stack_print_info.cold.2+0x52/0x52
[  671.557231]  ? save_stack+0x43/0xd0
[  671.560838]  ? kasan_kmalloc+0xc4/0xe0
[  671.564709]  ? kasan_slab_alloc+0x12/0x20
[  671.568849]  ? kmem_cache_alloc+0x12e/0x760
[  671.573164]  ? copy_creds+0x7b/0x470
[  671.576883]  should_fail.cold.4+0xa/0x1a
[  671.580931]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  671.586025]  ? find_held_lock+0x36/0x1c0
[  671.590089]  ? find_held_lock+0x36/0x1c0
[  671.594141]  ? check_same_owner+0x340/0x340
[  671.598455]  ? rcu_is_watching+0x8c/0x150
[  671.602586]  ? rcu_note_context_switch+0x730/0x730
[  671.607500]  ? security_prepare_creds+0x94/0xc0
[  671.612155]  __should_failslab+0x124/0x180
[  671.616373]  should_failslab+0x9/0x14
[  671.620156]  kmem_cache_alloc+0x2af/0x760
[  671.624289]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  671.629306]  __delayacct_tsk_init+0x20/0x80
[  671.633625]  copy_process.part.39+0x2ba8/0x7250
[  671.638300]  ? __lock_acquire+0x7fc/0x5020
[  671.642551]  ? __lock_acquire+0x7fc/0x5020
[  671.646785]  ? __lock_acquire+0x7fc/0x5020
[  671.651034]  ? __cleanup_sighand+0x70/0x70
[  671.655277]  ? debug_check_no_locks_freed+0x310/0x310
[  671.660449]  ? debug_check_no_locks_freed+0x310/0x310
[  671.665621]  ? print_usage_bug+0xc0/0xc0
[  671.669667]  ? print_usage_bug+0xc0/0xc0
[  671.673725]  ? d_splice_alias+0x7c9/0x11f0
[  671.677946]  ? lock_downgrade+0x8f0/0x8f0
[  671.682082]  ? d_instantiate_anon+0x30/0x30
[  671.686388]  ? __lock_acquire+0x7fc/0x5020
[  671.690617]  ? print_usage_bug+0xc0/0xc0
[  671.694662]  ? debug_check_no_locks_freed+0x310/0x310
[  671.699844]  ? debug_check_no_locks_freed+0x310/0x310
[  671.705029]  ? __lock_acquire+0x7fc/0x5020
[  671.709251]  ? print_usage_bug+0xc0/0xc0
[  671.713299]  ? lock_downgrade+0x8f0/0x8f0
[  671.717435]  ? debug_check_no_locks_freed+0x310/0x310
[  671.722610]  ? print_usage_bug+0xc0/0xc0
[  671.726664]  ? graph_lock+0x170/0x170
[  671.730446]  ? do_raw_spin_lock+0xc1/0x200
[  671.734687]  ? graph_lock+0x170/0x170
[  671.738479]  ? graph_lock+0x170/0x170
[  671.742276]  ? find_held_lock+0x36/0x1c0
[  671.746323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.751843]  ? _parse_integer+0x13b/0x190
[  671.755977]  ? graph_lock+0x170/0x170
[  671.759771]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  671.765331]  ? _kstrtoull+0x188/0x250
[  671.769113]  ? _parse_integer+0x190/0x190
[  671.773256]  ? graph_lock+0x170/0x170
[  671.777042]  ? lock_release+0xa30/0xa30
[  671.781002]  ? find_held_lock+0x36/0x1c0
[  671.785061]  ? lock_downgrade+0x8f0/0x8f0
[  671.789195]  ? kasan_check_read+0x11/0x20
[  671.793328]  ? rcu_is_watching+0x8c/0x150
[  671.797460]  ? pid_task+0x115/0x200
[  671.801069]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  671.805460]  ? save_stack+0xa9/0xd0
[  671.809071]  ? graph_lock+0x170/0x170
[  671.812859]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  671.818380]  ? proc_fail_nth_write+0x9e/0x210
[  671.822860]  ? proc_cwd_link+0x1d0/0x1d0
[  671.826904]  ? kasan_check_read+0x11/0x20
[  671.831050]  ? find_held_lock+0x36/0x1c0
[  671.835105]  _do_fork+0x291/0x12a0
[  671.838644]  ? fork_idle+0x1a0/0x1a0
[  671.842345]  ? __lock_is_held+0xb5/0x140
[  671.846393]  ? __sb_end_write+0xac/0xe0
[  671.850347]  ? vfs_write+0x2a8/0x560
[  671.854057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.859575]  ? ksys_write+0x1ae/0x260
[  671.863358]  ? __ia32_sys_read+0xb0/0xb0
[  671.867406]  ? syscall_slow_exit_work+0x500/0x500
[  671.872234]  __x64_sys_clone+0xbf/0x150
[  671.876191]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  671.881205]  do_syscall_64+0x1b9/0x820
[  671.885095]  ? syscall_return_slowpath+0x5e0/0x5e0
[  671.890014]  ? syscall_return_slowpath+0x31d/0x5e0
[  671.894948]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  671.900298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  671.905138]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  671.910310] RIP: 0033:0x441519
[  671.913479] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  671.932683] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  671.940380] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  671.947649] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  671.954903] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  671.962168] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  671.969440] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  671.981350] FAULT_INJECTION: forcing a failure.
[  671.981350] name failslab, interval 1, probability 0, space 0, times 0
[  671.992604] CPU: 0 PID: 4708 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  671.999704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  672.009042] Call Trace:
[  672.011623]  dump_stack+0x1c9/0x2b4
[  672.015237]  ? dump_stack_print_info.cold.2+0x52/0x52
[  672.020410]  ? save_stack+0x43/0xd0
[  672.024025]  ? kasan_kmalloc+0xc4/0xe0
[  672.027906]  ? kasan_slab_alloc+0x12/0x20
[  672.032040]  ? kmem_cache_alloc+0x12e/0x760
[  672.036347]  ? copy_creds+0x7b/0x470
[  672.040052]  should_fail.cold.4+0xa/0x1a
[  672.044110]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  672.049206]  ? find_held_lock+0x36/0x1c0
[  672.053262]  ? find_held_lock+0x36/0x1c0
[  672.057315]  ? check_same_owner+0x340/0x340
[  672.061621]  ? rcu_is_watching+0x8c/0x150
[  672.065760]  ? rcu_note_context_switch+0x730/0x730
[  672.070695]  ? security_prepare_creds+0x94/0xc0
[  672.075355]  __should_failslab+0x124/0x180
[  672.079573]  should_failslab+0x9/0x14
[  672.083368]  kmem_cache_alloc+0x2af/0x760
[  672.087499]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  672.092502]  __delayacct_tsk_init+0x20/0x80
[  672.096807]  copy_process.part.39+0x2ba8/0x7250
[  672.101460]  ? __lock_acquire+0x7fc/0x5020
[  672.105680]  ? __lock_acquire+0x7fc/0x5020
[  672.109897]  ? __lock_acquire+0x7fc/0x5020
[  672.114119]  ? __cleanup_sighand+0x70/0x70
[  672.118350]  ? debug_check_no_locks_freed+0x310/0x310
[  672.123534]  ? debug_check_no_locks_freed+0x310/0x310
[  672.128715]  ? print_usage_bug+0xc0/0xc0
[  672.132764]  ? print_usage_bug+0xc0/0xc0
[  672.136809]  ? d_splice_alias+0x7c9/0x11f0
[  672.141034]  ? lock_downgrade+0x8f0/0x8f0
[  672.145165]  ? d_instantiate_anon+0x30/0x30
[  672.149478]  ? __lock_acquire+0x7fc/0x5020
[  672.153695]  ? print_usage_bug+0xc0/0xc0
[  672.157750]  ? debug_check_no_locks_freed+0x310/0x310
[  672.162925]  ? debug_check_no_locks_freed+0x310/0x310
[  672.168099]  ? __lock_acquire+0x7fc/0x5020
[  672.172333]  ? print_usage_bug+0xc0/0xc0
[  672.176377]  ? lock_downgrade+0x8f0/0x8f0
[  672.180531]  ? debug_check_no_locks_freed+0x310/0x310
[  672.185714]  ? print_usage_bug+0xc0/0xc0
[  672.189756]  ? graph_lock+0x170/0x170
[  672.193557]  ? do_raw_spin_lock+0xc1/0x200
[  672.197780]  ? graph_lock+0x170/0x170
[  672.201563]  ? graph_lock+0x170/0x170
[  672.205351]  ? find_held_lock+0x36/0x1c0
[  672.209395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.214916]  ? _parse_integer+0x13b/0x190
[  672.219046]  ? graph_lock+0x170/0x170
[  672.222848]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  672.228364]  ? _kstrtoull+0x188/0x250
[  672.232145]  ? _parse_integer+0x190/0x190
[  672.236277]  ? graph_lock+0x170/0x170
[  672.240073]  ? lock_release+0xa30/0xa30
[  672.244036]  ? find_held_lock+0x36/0x1c0
[  672.248084]  ? lock_downgrade+0x8f0/0x8f0
[  672.252218]  ? kasan_check_read+0x11/0x20
[  672.256362]  ? rcu_is_watching+0x8c/0x150
[  672.260499]  ? pid_task+0x115/0x200
[  672.264108]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  672.268501]  ? save_stack+0xa9/0xd0
[  672.272109]  ? graph_lock+0x170/0x170
[  672.275899]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  672.281431]  ? proc_fail_nth_write+0x9e/0x210
[  672.285906]  ? proc_cwd_link+0x1d0/0x1d0
[  672.289950]  ? kasan_check_read+0x11/0x20
[  672.294082]  ? find_held_lock+0x36/0x1c0
[  672.298130]  _do_fork+0x291/0x12a0
[  672.301653]  ? fork_idle+0x1a0/0x1a0
[  672.305352]  ? __lock_is_held+0xb5/0x140
[  672.309411]  ? __sb_end_write+0xac/0xe0
[  672.313370]  ? vfs_write+0x2a8/0x560
[  672.317072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.322590]  ? ksys_write+0x1ae/0x260
[  672.326370]  ? __ia32_sys_read+0xb0/0xb0
[  672.330417]  ? syscall_slow_exit_work+0x500/0x500
[  672.335256]  __x64_sys_clone+0xbf/0x150
[  672.339216]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  672.344236]  do_syscall_64+0x1b9/0x820
[  672.348107]  ? syscall_return_slowpath+0x5e0/0x5e0
[  672.353025]  ? syscall_return_slowpath+0x31d/0x5e0
[  672.357945]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  672.363316]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  672.368145]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  672.373328] RIP: 0033:0x441519
[  672.376496] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  672.395669] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  672.403358] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  672.410609] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  672.417868] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  672.425118] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  672.432367] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  672.444635] FAULT_INJECTION: forcing a failure.
[  672.444635] name failslab, interval 1, probability 0, space 0, times 0
[  672.455890] CPU: 1 PID: 4710 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  672.462970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  672.472303] Call Trace:
[  672.474880]  dump_stack+0x1c9/0x2b4
[  672.478507]  ? dump_stack_print_info.cold.2+0x52/0x52
[  672.483679]  ? save_stack+0x43/0xd0
[  672.487287]  ? kasan_kmalloc+0xc4/0xe0
[  672.491157]  ? kasan_slab_alloc+0x12/0x20
[  672.495286]  ? kmem_cache_alloc+0x12e/0x760
[  672.499592]  ? copy_creds+0x7b/0x470
[  672.503299]  should_fail.cold.4+0xa/0x1a
[  672.507352]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  672.512438]  ? find_held_lock+0x36/0x1c0
[  672.516489]  ? find_held_lock+0x36/0x1c0
[  672.520551]  ? check_same_owner+0x340/0x340
[  672.524855]  ? rcu_is_watching+0x8c/0x150
[  672.528984]  ? rcu_note_context_switch+0x730/0x730
[  672.533900]  ? security_prepare_creds+0x94/0xc0
[  672.538553]  __should_failslab+0x124/0x180
[  672.542774]  should_failslab+0x9/0x14
[  672.546563]  kmem_cache_alloc+0x2af/0x760
[  672.550695]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  672.555698]  __delayacct_tsk_init+0x20/0x80
[  672.560023]  copy_process.part.39+0x2ba8/0x7250
[  672.564685]  ? __lock_acquire+0x7fc/0x5020
[  672.568906]  ? __lock_acquire+0x7fc/0x5020
[  672.573134]  ? __lock_acquire+0x7fc/0x5020
[  672.577367]  ? __cleanup_sighand+0x70/0x70
[  672.581584]  ? debug_check_no_locks_freed+0x310/0x310
[  672.586756]  ? debug_check_no_locks_freed+0x310/0x310
[  672.591937]  ? print_usage_bug+0xc0/0xc0
[  672.595998]  ? print_usage_bug+0xc0/0xc0
[  672.600052]  ? d_splice_alias+0x7c9/0x11f0
[  672.604266]  ? lock_downgrade+0x8f0/0x8f0
[  672.608398]  ? d_instantiate_anon+0x30/0x30
[  672.612709]  ? __lock_acquire+0x7fc/0x5020
[  672.616930]  ? print_usage_bug+0xc0/0xc0
[  672.620977]  ? debug_check_no_locks_freed+0x310/0x310
[  672.626155]  ? debug_check_no_locks_freed+0x310/0x310
[  672.631332]  ? __lock_acquire+0x7fc/0x5020
[  672.635553]  ? print_usage_bug+0xc0/0xc0
[  672.639610]  ? lock_downgrade+0x8f0/0x8f0
[  672.643755]  ? debug_check_no_locks_freed+0x310/0x310
[  672.648944]  ? print_usage_bug+0xc0/0xc0
[  672.652992]  ? graph_lock+0x170/0x170
[  672.656782]  ? do_raw_spin_lock+0xc1/0x200
[  672.661001]  ? graph_lock+0x170/0x170
[  672.664794]  ? graph_lock+0x170/0x170
[  672.668582]  ? find_held_lock+0x36/0x1c0
[  672.672627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.678151]  ? _parse_integer+0x13b/0x190
[  672.682281]  ? graph_lock+0x170/0x170
[  672.686069]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  672.691591]  ? _kstrtoull+0x188/0x250
[  672.695375]  ? _parse_integer+0x190/0x190
[  672.699508]  ? graph_lock+0x170/0x170
[  672.703298]  ? lock_release+0xa30/0xa30
[  672.707280]  ? find_held_lock+0x36/0x1c0
[  672.711340]  ? lock_downgrade+0x8f0/0x8f0
[  672.715477]  ? kasan_check_read+0x11/0x20
[  672.719605]  ? rcu_is_watching+0x8c/0x150
[  672.723740]  ? pid_task+0x115/0x200
[  672.727359]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  672.731767]  ? save_stack+0xa9/0xd0
[  672.735387]  ? graph_lock+0x170/0x170
[  672.739175]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  672.744705]  ? proc_fail_nth_write+0x9e/0x210
[  672.749183]  ? proc_cwd_link+0x1d0/0x1d0
[  672.753243]  ? kasan_check_read+0x11/0x20
[  672.757376]  ? find_held_lock+0x36/0x1c0
[  672.761424]  _do_fork+0x291/0x12a0
[  672.764961]  ? fork_idle+0x1a0/0x1a0
[  672.768676]  ? __lock_is_held+0xb5/0x140
[  672.772755]  ? __sb_end_write+0xac/0xe0
[  672.776718]  ? vfs_write+0x2a8/0x560
[  672.780418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.785957]  ? ksys_write+0x1ae/0x260
[  672.789739]  ? __ia32_sys_read+0xb0/0xb0
[  672.793790]  ? syscall_slow_exit_work+0x500/0x500
[  672.798628]  __x64_sys_clone+0xbf/0x150
[  672.802586]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  672.807588]  do_syscall_64+0x1b9/0x820
[  672.811456]  ? syscall_slow_exit_work+0x500/0x500
[  672.816293]  ? syscall_return_slowpath+0x5e0/0x5e0
[  672.821205]  ? syscall_return_slowpath+0x31d/0x5e0
[  672.826119]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  672.831466]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  672.836293]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  672.841473] RIP: 0033:0x441519
executing program
[  672.844640] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  672.863808] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  672.871499] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  672.878747] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  672.885999] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  672.893255] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  672.900505] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  672.912404] FAULT_INJECTION: forcing a failure.
[  672.912404] name failslab, interval 1, probability 0, space 0, times 0
[  672.923650] CPU: 0 PID: 4712 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  672.930730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  672.940060] Call Trace:
[  672.942637]  dump_stack+0x1c9/0x2b4
[  672.946250]  ? dump_stack_print_info.cold.2+0x52/0x52
[  672.951426]  ? save_stack+0x43/0xd0
[  672.955040]  ? kasan_kmalloc+0xc4/0xe0
[  672.958915]  ? kasan_slab_alloc+0x12/0x20
[  672.963046]  ? kmem_cache_alloc+0x12e/0x760
[  672.967361]  ? copy_creds+0x7b/0x470
[  672.971061]  should_fail.cold.4+0xa/0x1a
[  672.975105]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  672.980210]  ? find_held_lock+0x36/0x1c0
[  672.984261]  ? find_held_lock+0x36/0x1c0
[  672.988318]  ? check_same_owner+0x340/0x340
[  672.992619]  ? rcu_is_watching+0x8c/0x150
[  672.996759]  ? rcu_note_context_switch+0x730/0x730
[  673.001677]  ? security_prepare_creds+0x94/0xc0
[  673.006344]  __should_failslab+0x124/0x180
[  673.010573]  should_failslab+0x9/0x14
[  673.014355]  kmem_cache_alloc+0x2af/0x760
[  673.018486]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  673.023490]  __delayacct_tsk_init+0x20/0x80
[  673.027794]  copy_process.part.39+0x2ba8/0x7250
[  673.032445]  ? __lock_acquire+0x7fc/0x5020
[  673.036663]  ? __lock_acquire+0x7fc/0x5020
[  673.040891]  ? __lock_acquire+0x7fc/0x5020
[  673.045124]  ? __cleanup_sighand+0x70/0x70
[  673.049339]  ? debug_check_no_locks_freed+0x310/0x310
[  673.054529]  ? debug_check_no_locks_freed+0x310/0x310
[  673.059699]  ? print_usage_bug+0xc0/0xc0
[  673.063755]  ? print_usage_bug+0xc0/0xc0
[  673.067818]  ? d_splice_alias+0x7c9/0x11f0
[  673.072038]  ? lock_downgrade+0x8f0/0x8f0
[  673.076170]  ? d_instantiate_anon+0x30/0x30
[  673.080485]  ? __lock_acquire+0x7fc/0x5020
[  673.084704]  ? print_usage_bug+0xc0/0xc0
[  673.088748]  ? debug_check_no_locks_freed+0x310/0x310
[  673.093922]  ? debug_check_no_locks_freed+0x310/0x310
[  673.099094]  ? __lock_acquire+0x7fc/0x5020
[  673.103309]  ? print_usage_bug+0xc0/0xc0
[  673.107350]  ? lock_downgrade+0x8f0/0x8f0
[  673.111485]  ? debug_check_no_locks_freed+0x310/0x310
[  673.116667]  ? print_usage_bug+0xc0/0xc0
[  673.120712]  ? graph_lock+0x170/0x170
[  673.124504]  ? do_raw_spin_lock+0xc1/0x200
[  673.128721]  ? graph_lock+0x170/0x170
[  673.132512]  ? graph_lock+0x170/0x170
[  673.136300]  ? find_held_lock+0x36/0x1c0
[  673.140343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.145864]  ? _parse_integer+0x13b/0x190
[  673.149994]  ? graph_lock+0x170/0x170
[  673.153781]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  673.159297]  ? _kstrtoull+0x188/0x250
[  673.163080]  ? _parse_integer+0x190/0x190
[  673.167219]  ? graph_lock+0x170/0x170
[  673.171011]  ? lock_release+0xa30/0xa30
[  673.174976]  ? find_held_lock+0x36/0x1c0
[  673.179036]  ? lock_downgrade+0x8f0/0x8f0
[  673.183181]  ? kasan_check_read+0x11/0x20
[  673.187310]  ? rcu_is_watching+0x8c/0x150
[  673.191441]  ? pid_task+0x115/0x200
[  673.195063]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  673.199456]  ? save_stack+0xa9/0xd0
[  673.203086]  ? graph_lock+0x170/0x170
[  673.206883]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  673.212405]  ? proc_fail_nth_write+0x9e/0x210
[  673.216889]  ? proc_cwd_link+0x1d0/0x1d0
[  673.220933]  ? kasan_check_read+0x11/0x20
[  673.225074]  ? find_held_lock+0x36/0x1c0
[  673.229130]  _do_fork+0x291/0x12a0
[  673.232656]  ? fork_idle+0x1a0/0x1a0
[  673.236352]  ? __lock_is_held+0xb5/0x140
[  673.240410]  ? __sb_end_write+0xac/0xe0
[  673.244365]  ? vfs_write+0x2a8/0x560
[  673.248066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.253583]  ? ksys_write+0x1ae/0x260
[  673.257365]  ? __ia32_sys_read+0xb0/0xb0
[  673.261412]  ? syscall_slow_exit_work+0x500/0x500
[  673.266244]  __x64_sys_clone+0xbf/0x150
[  673.270201]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  673.275209]  do_syscall_64+0x1b9/0x820
[  673.279088]  ? syscall_return_slowpath+0x5e0/0x5e0
[  673.283999]  ? syscall_return_slowpath+0x31d/0x5e0
[  673.288922]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  673.294268]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  673.299093]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  673.304282] RIP: 0033:0x441519
[  673.307461] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  673.326655] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  673.334343] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  673.341593] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  673.348849] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  673.356111] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  673.363360] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  673.377406] FAULT_INJECTION: forcing a failure.
[  673.377406] name failslab, interval 1, probability 0, space 0, times 0
[  673.388699] CPU: 0 PID: 4714 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  673.395782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  673.405129] Call Trace:
[  673.407719]  dump_stack+0x1c9/0x2b4
[  673.411331]  ? dump_stack_print_info.cold.2+0x52/0x52
[  673.416517]  ? save_stack+0x43/0xd0
[  673.420132]  ? kasan_kmalloc+0xc4/0xe0
[  673.424015]  ? kasan_slab_alloc+0x12/0x20
[  673.428160]  ? kmem_cache_alloc+0x12e/0x760
[  673.432465]  ? copy_creds+0x7b/0x470
[  673.436175]  should_fail.cold.4+0xa/0x1a
[  673.440234]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  673.445322]  ? find_held_lock+0x36/0x1c0
[  673.449370]  ? find_held_lock+0x36/0x1c0
[  673.453423]  ? check_same_owner+0x340/0x340
[  673.457725]  ? rcu_is_watching+0x8c/0x150
[  673.461854]  ? rcu_note_context_switch+0x730/0x730
[  673.466763]  ? security_prepare_creds+0x94/0xc0
[  673.471415]  __should_failslab+0x124/0x180
[  673.475633]  should_failslab+0x9/0x14
[  673.479415]  kmem_cache_alloc+0x2af/0x760
[  673.483555]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  673.488556]  __delayacct_tsk_init+0x20/0x80
[  673.492870]  copy_process.part.39+0x2ba8/0x7250
[  673.497524]  ? __lock_acquire+0x7fc/0x5020
[  673.501742]  ? __lock_acquire+0x7fc/0x5020
[  673.505957]  ? __lock_acquire+0x7fc/0x5020
[  673.510179]  ? __cleanup_sighand+0x70/0x70
[  673.514403]  ? debug_check_no_locks_freed+0x310/0x310
[  673.519574]  ? debug_check_no_locks_freed+0x310/0x310
[  673.524744]  ? print_usage_bug+0xc0/0xc0
[  673.528797]  ? print_usage_bug+0xc0/0xc0
[  673.532849]  ? d_splice_alias+0x7c9/0x11f0
[  673.537064]  ? lock_downgrade+0x8f0/0x8f0
[  673.541196]  ? d_instantiate_anon+0x30/0x30
[  673.545513]  ? __lock_acquire+0x7fc/0x5020
[  673.549741]  ? print_usage_bug+0xc0/0xc0
[  673.553787]  ? debug_check_no_locks_freed+0x310/0x310
[  673.558971]  ? debug_check_no_locks_freed+0x310/0x310
[  673.564145]  ? __lock_acquire+0x7fc/0x5020
[  673.568372]  ? print_usage_bug+0xc0/0xc0
[  673.572422]  ? lock_downgrade+0x8f0/0x8f0
[  673.576568]  ? debug_check_no_locks_freed+0x310/0x310
[  673.581740]  ? print_usage_bug+0xc0/0xc0
[  673.585781]  ? graph_lock+0x170/0x170
[  673.589563]  ? do_raw_spin_lock+0xc1/0x200
[  673.593778]  ? graph_lock+0x170/0x170
[  673.597572]  ? graph_lock+0x170/0x170
[  673.601359]  ? find_held_lock+0x36/0x1c0
[  673.605402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.610932]  ? _parse_integer+0x13b/0x190
[  673.615062]  ? graph_lock+0x170/0x170
[  673.618844]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  673.624371]  ? _kstrtoull+0x188/0x250
[  673.628167]  ? _parse_integer+0x190/0x190
[  673.632306]  ? graph_lock+0x170/0x170
[  673.636100]  ? lock_release+0xa30/0xa30
[  673.640064]  ? find_held_lock+0x36/0x1c0
[  673.644113]  ? lock_downgrade+0x8f0/0x8f0
[  673.648246]  ? kasan_check_read+0x11/0x20
[  673.652374]  ? rcu_is_watching+0x8c/0x150
[  673.656514]  ? pid_task+0x115/0x200
[  673.660123]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  673.664523]  ? save_stack+0xa9/0xd0
[  673.668141]  ? graph_lock+0x170/0x170
[  673.671934]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  673.677463]  ? proc_fail_nth_write+0x9e/0x210
[  673.681940]  ? proc_cwd_link+0x1d0/0x1d0
[  673.685983]  ? kasan_check_read+0x11/0x20
[  673.690116]  ? find_held_lock+0x36/0x1c0
[  673.694172]  _do_fork+0x291/0x12a0
[  673.697704]  ? fork_idle+0x1a0/0x1a0
[  673.701398]  ? __lock_is_held+0xb5/0x140
[  673.705446]  ? __sb_end_write+0xac/0xe0
[  673.709413]  ? vfs_write+0x2a8/0x560
[  673.713110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.718627]  ? ksys_write+0x1ae/0x260
[  673.722407]  ? __ia32_sys_read+0xb0/0xb0
[  673.726450]  ? syscall_slow_exit_work+0x500/0x500
[  673.731284]  __x64_sys_clone+0xbf/0x150
[  673.735253]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  673.740251]  do_syscall_64+0x1b9/0x820
[  673.744123]  ? syscall_return_slowpath+0x5e0/0x5e0
[  673.749040]  ? syscall_return_slowpath+0x31d/0x5e0
[  673.753973]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  673.759321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  673.764147]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  673.769317] RIP: 0033:0x441519
[  673.772484] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  673.791661] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  673.799353] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  673.806604] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  673.813851] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  673.821102] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  673.828349] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  673.840710] FAULT_INJECTION: forcing a failure.
[  673.840710] name failslab, interval 1, probability 0, space 0, times 0
[  673.851969] CPU: 1 PID: 4716 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  673.859062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  673.868407] Call Trace:
[  673.870984]  dump_stack+0x1c9/0x2b4
[  673.874598]  ? dump_stack_print_info.cold.2+0x52/0x52
[  673.879774]  ? save_stack+0x43/0xd0
[  673.883383]  ? kasan_kmalloc+0xc4/0xe0
[  673.887256]  ? kasan_slab_alloc+0x12/0x20
[  673.891387]  ? kmem_cache_alloc+0x12e/0x760
[  673.895720]  ? copy_creds+0x7b/0x470
[  673.899432]  should_fail.cold.4+0xa/0x1a
[  673.903481]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  673.908582]  ? find_held_lock+0x36/0x1c0
[  673.912632]  ? find_held_lock+0x36/0x1c0
[  673.916688]  ? check_same_owner+0x340/0x340
[  673.920996]  ? rcu_is_watching+0x8c/0x150
[  673.925142]  ? rcu_note_context_switch+0x730/0x730
[  673.930067]  ? security_prepare_creds+0x94/0xc0
[  673.934723]  __should_failslab+0x124/0x180
[  673.938945]  should_failslab+0x9/0x14
[  673.942728]  kmem_cache_alloc+0x2af/0x760
[  673.946858]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  673.951865]  __delayacct_tsk_init+0x20/0x80
[  673.956185]  copy_process.part.39+0x2ba8/0x7250
[  673.960849]  ? __lock_acquire+0x7fc/0x5020
[  673.965071]  ? __lock_acquire+0x7fc/0x5020
[  673.969301]  ? __lock_acquire+0x7fc/0x5020
[  673.973525]  ? __cleanup_sighand+0x70/0x70
[  673.977741]  ? debug_check_no_locks_freed+0x310/0x310
[  673.982921]  ? debug_check_no_locks_freed+0x310/0x310
[  673.988109]  ? print_usage_bug+0xc0/0xc0
[  673.992155]  ? print_usage_bug+0xc0/0xc0
[  673.996201]  ? d_splice_alias+0x7c9/0x11f0
[  674.000430]  ? lock_downgrade+0x8f0/0x8f0
[  674.004571]  ? d_instantiate_anon+0x30/0x30
[  674.008875]  ? __lock_acquire+0x7fc/0x5020
[  674.013095]  ? print_usage_bug+0xc0/0xc0
[  674.017139]  ? debug_check_no_locks_freed+0x310/0x310
[  674.022314]  ? debug_check_no_locks_freed+0x310/0x310
[  674.027497]  ? __lock_acquire+0x7fc/0x5020
[  674.031715]  ? print_usage_bug+0xc0/0xc0
[  674.035769]  ? lock_downgrade+0x8f0/0x8f0
[  674.039904]  ? debug_check_no_locks_freed+0x310/0x310
[  674.045090]  ? print_usage_bug+0xc0/0xc0
[  674.049133]  ? graph_lock+0x170/0x170
[  674.052929]  ? do_raw_spin_lock+0xc1/0x200
[  674.057165]  ? graph_lock+0x170/0x170
[  674.060958]  ? graph_lock+0x170/0x170
[  674.064743]  ? find_held_lock+0x36/0x1c0
[  674.068788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.074317]  ? _parse_integer+0x13b/0x190
[  674.078464]  ? graph_lock+0x170/0x170
[  674.082248]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  674.087770]  ? _kstrtoull+0x188/0x250
[  674.091552]  ? _parse_integer+0x190/0x190
[  674.095686]  ? graph_lock+0x170/0x170
[  674.099470]  ? lock_release+0xa30/0xa30
[  674.103427]  ? find_held_lock+0x36/0x1c0
[  674.107486]  ? lock_downgrade+0x8f0/0x8f0
[  674.111620]  ? kasan_check_read+0x11/0x20
[  674.115747]  ? rcu_is_watching+0x8c/0x150
[  674.119879]  ? pid_task+0x115/0x200
[  674.123487]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  674.127876]  ? save_stack+0xa9/0xd0
[  674.131487]  ? graph_lock+0x170/0x170
[  674.135275]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  674.140797]  ? proc_fail_nth_write+0x9e/0x210
[  674.145272]  ? proc_cwd_link+0x1d0/0x1d0
[  674.149316]  ? kasan_check_read+0x11/0x20
[  674.153446]  ? find_held_lock+0x36/0x1c0
[  674.157493]  _do_fork+0x291/0x12a0
[  674.161042]  ? fork_idle+0x1a0/0x1a0
[  674.164743]  ? __lock_is_held+0xb5/0x140
[  674.168791]  ? __sb_end_write+0xac/0xe0
[  674.172744]  ? vfs_write+0x2a8/0x560
[  674.176454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.181980]  ? ksys_write+0x1ae/0x260
[  674.185761]  ? __ia32_sys_read+0xb0/0xb0
[  674.189804]  ? syscall_slow_exit_work+0x500/0x500
[  674.194630]  __x64_sys_clone+0xbf/0x150
[  674.198592]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  674.203604]  do_syscall_64+0x1b9/0x820
[  674.207476]  ? syscall_return_slowpath+0x5e0/0x5e0
[  674.212386]  ? syscall_return_slowpath+0x31d/0x5e0
[  674.217317]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  674.222667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  674.227497]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  674.232682] RIP: 0033:0x441519
[  674.235859] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  674.255060] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  674.262763] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  674.270023] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  674.277282] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  674.284534] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  674.291795] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  674.303715] FAULT_INJECTION: forcing a failure.
[  674.303715] name failslab, interval 1, probability 0, space 0, times 0
[  674.314958] CPU: 0 PID: 4718 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  674.322047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  674.331392] Call Trace:
[  674.333970]  dump_stack+0x1c9/0x2b4
[  674.337583]  ? dump_stack_print_info.cold.2+0x52/0x52
[  674.342764]  ? save_stack+0x43/0xd0
[  674.346371]  ? kasan_kmalloc+0xc4/0xe0
[  674.350239]  ? kasan_slab_alloc+0x12/0x20
[  674.354367]  ? kmem_cache_alloc+0x12e/0x760
[  674.358672]  ? copy_creds+0x7b/0x470
[  674.362376]  should_fail.cold.4+0xa/0x1a
[  674.366426]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  674.372035]  ? find_held_lock+0x36/0x1c0
[  674.376104]  ? find_held_lock+0x36/0x1c0
[  674.380177]  ? check_same_owner+0x340/0x340
[  674.384481]  ? rcu_is_watching+0x8c/0x150
[  674.388614]  ? rcu_note_context_switch+0x730/0x730
[  674.393527]  ? security_prepare_creds+0x94/0xc0
[  674.398187]  __should_failslab+0x124/0x180
[  674.402407]  should_failslab+0x9/0x14
[  674.406193]  kmem_cache_alloc+0x2af/0x760
[  674.410327]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  674.415329]  __delayacct_tsk_init+0x20/0x80
[  674.419634]  copy_process.part.39+0x2ba8/0x7250
[  674.424286]  ? __lock_acquire+0x7fc/0x5020
[  674.428505]  ? __lock_acquire+0x7fc/0x5020
[  674.432719]  ? __lock_acquire+0x7fc/0x5020
[  674.436945]  ? __cleanup_sighand+0x70/0x70
[  674.441167]  ? debug_check_no_locks_freed+0x310/0x310
[  674.446337]  ? debug_check_no_locks_freed+0x310/0x310
[  674.451507]  ? print_usage_bug+0xc0/0xc0
[  674.455553]  ? print_usage_bug+0xc0/0xc0
[  674.459597]  ? d_splice_alias+0x7c9/0x11f0
[  674.463825]  ? lock_downgrade+0x8f0/0x8f0
[  674.467957]  ? d_instantiate_anon+0x30/0x30
[  674.472269]  ? __lock_acquire+0x7fc/0x5020
[  674.476487]  ? print_usage_bug+0xc0/0xc0
[  674.480534]  ? debug_check_no_locks_freed+0x310/0x310
[  674.485719]  ? debug_check_no_locks_freed+0x310/0x310
[  674.490892]  ? __lock_acquire+0x7fc/0x5020
[  674.495122]  ? print_usage_bug+0xc0/0xc0
[  674.499178]  ? lock_downgrade+0x8f0/0x8f0
[  674.503327]  ? debug_check_no_locks_freed+0x310/0x310
[  674.508510]  ? print_usage_bug+0xc0/0xc0
[  674.512565]  ? graph_lock+0x170/0x170
[  674.516347]  ? do_raw_spin_lock+0xc1/0x200
[  674.520563]  ? graph_lock+0x170/0x170
[  674.524355]  ? graph_lock+0x170/0x170
[  674.528154]  ? find_held_lock+0x36/0x1c0
[  674.532211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.537748]  ? _parse_integer+0x13b/0x190
[  674.541881]  ? graph_lock+0x170/0x170
[  674.545662]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  674.551180]  ? _kstrtoull+0x188/0x250
[  674.554962]  ? _parse_integer+0x190/0x190
[  674.559095]  ? graph_lock+0x170/0x170
[  674.562887]  ? lock_release+0xa30/0xa30
[  674.566846]  ? find_held_lock+0x36/0x1c0
[  674.570893]  ? lock_downgrade+0x8f0/0x8f0
[  674.575035]  ? kasan_check_read+0x11/0x20
[  674.579162]  ? rcu_is_watching+0x8c/0x150
[  674.583301]  ? pid_task+0x115/0x200
[  674.586925]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  674.591316]  ? save_stack+0xa9/0xd0
[  674.594925]  ? graph_lock+0x170/0x170
[  674.598723]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  674.604242]  ? proc_fail_nth_write+0x9e/0x210
[  674.608716]  ? proc_cwd_link+0x1d0/0x1d0
[  674.612761]  ? kasan_check_read+0x11/0x20
[  674.616893]  ? find_held_lock+0x36/0x1c0
[  674.620940]  _do_fork+0x291/0x12a0
[  674.624465]  ? fork_idle+0x1a0/0x1a0
[  674.628161]  ? __lock_is_held+0xb5/0x140
[  674.632223]  ? __sb_end_write+0xac/0xe0
[  674.636178]  ? vfs_write+0x2a8/0x560
[  674.639877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.645392]  ? ksys_write+0x1ae/0x260
[  674.649174]  ? __ia32_sys_read+0xb0/0xb0
[  674.653218]  ? syscall_slow_exit_work+0x500/0x500
[  674.658047]  __x64_sys_clone+0xbf/0x150
[  674.662004]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  674.667016]  do_syscall_64+0x1b9/0x820
[  674.670892]  ? syscall_return_slowpath+0x5e0/0x5e0
[  674.675805]  ? syscall_return_slowpath+0x31d/0x5e0
[  674.680719]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  674.686079]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  674.690909]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  674.696081] RIP: 0033:0x441519
[  674.699249] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  674.718435] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  674.726155] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  674.733414] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  674.740667] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  674.747918] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  674.755168] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  674.767499] FAULT_INJECTION: forcing a failure.
[  674.767499] name failslab, interval 1, probability 0, space 0, times 0
[  674.778725] CPU: 0 PID: 4720 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  674.785810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  674.795141] Call Trace:
[  674.797717]  dump_stack+0x1c9/0x2b4
[  674.801336]  ? dump_stack_print_info.cold.2+0x52/0x52
[  674.806509]  ? save_stack+0x43/0xd0
[  674.810121]  ? kasan_kmalloc+0xc4/0xe0
[  674.813989]  ? kasan_slab_alloc+0x12/0x20
[  674.818122]  ? kmem_cache_alloc+0x12e/0x760
[  674.822432]  ? copy_creds+0x7b/0x470
[  674.826133]  should_fail.cold.4+0xa/0x1a
[  674.830186]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  674.835270]  ? find_held_lock+0x36/0x1c0
[  674.839317]  ? find_held_lock+0x36/0x1c0
[  674.843377]  ? check_same_owner+0x340/0x340
[  674.847680]  ? rcu_is_watching+0x8c/0x150
[  674.851809]  ? rcu_note_context_switch+0x730/0x730
[  674.856723]  ? security_prepare_creds+0x94/0xc0
[  674.861376]  __should_failslab+0x124/0x180
[  674.865594]  should_failslab+0x9/0x14
[  674.869376]  kmem_cache_alloc+0x2af/0x760
[  674.873517]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  674.878527]  __delayacct_tsk_init+0x20/0x80
[  674.882841]  copy_process.part.39+0x2ba8/0x7250
[  674.887508]  ? __lock_acquire+0x7fc/0x5020
[  674.891746]  ? __lock_acquire+0x7fc/0x5020
[  674.895975]  ? __lock_acquire+0x7fc/0x5020
[  674.900201]  ? __cleanup_sighand+0x70/0x70
[  674.904419]  ? debug_check_no_locks_freed+0x310/0x310
[  674.909595]  ? debug_check_no_locks_freed+0x310/0x310
[  674.914788]  ? print_usage_bug+0xc0/0xc0
[  674.918835]  ? print_usage_bug+0xc0/0xc0
[  674.922882]  ? d_splice_alias+0x7c9/0x11f0
[  674.927125]  ? lock_downgrade+0x8f0/0x8f0
[  674.931254]  ? d_instantiate_anon+0x30/0x30
[  674.935561]  ? __lock_acquire+0x7fc/0x5020
[  674.939781]  ? print_usage_bug+0xc0/0xc0
[  674.943839]  ? debug_check_no_locks_freed+0x310/0x310
[  674.949037]  ? debug_check_no_locks_freed+0x310/0x310
[  674.954232]  ? __lock_acquire+0x7fc/0x5020
[  674.958449]  ? print_usage_bug+0xc0/0xc0
[  674.962508]  ? lock_downgrade+0x8f0/0x8f0
[  674.966655]  ? debug_check_no_locks_freed+0x310/0x310
[  674.971830]  ? print_usage_bug+0xc0/0xc0
[  674.975875]  ? graph_lock+0x170/0x170
[  674.979669]  ? do_raw_spin_lock+0xc1/0x200
[  674.983899]  ? graph_lock+0x170/0x170
[  674.987685]  ? graph_lock+0x170/0x170
[  674.991480]  ? find_held_lock+0x36/0x1c0
[  674.995526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.001048]  ? _parse_integer+0x13b/0x190
[  675.005177]  ? graph_lock+0x170/0x170
[  675.008960]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.014487]  ? _kstrtoull+0x188/0x250
[  675.018278]  ? _parse_integer+0x190/0x190
[  675.022417]  ? graph_lock+0x170/0x170
[  675.026209]  ? lock_release+0xa30/0xa30
[  675.030178]  ? find_held_lock+0x36/0x1c0
[  675.034235]  ? lock_downgrade+0x8f0/0x8f0
[  675.038369]  ? kasan_check_read+0x11/0x20
[  675.042507]  ? rcu_is_watching+0x8c/0x150
[  675.046637]  ? pid_task+0x115/0x200
[  675.050244]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  675.054646]  ? save_stack+0xa9/0xd0
[  675.058256]  ? graph_lock+0x170/0x170
[  675.062047]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.067568]  ? proc_fail_nth_write+0x9e/0x210
[  675.072047]  ? proc_cwd_link+0x1d0/0x1d0
[  675.076096]  ? kasan_check_read+0x11/0x20
[  675.080228]  ? find_held_lock+0x36/0x1c0
[  675.084282]  _do_fork+0x291/0x12a0
[  675.087807]  ? fork_idle+0x1a0/0x1a0
[  675.091516]  ? __lock_is_held+0xb5/0x140
[  675.095572]  ? __sb_end_write+0xac/0xe0
[  675.099535]  ? vfs_write+0x2a8/0x560
[  675.103232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.108748]  ? ksys_write+0x1ae/0x260
[  675.112540]  ? __ia32_sys_read+0xb0/0xb0
[  675.116595]  ? syscall_slow_exit_work+0x500/0x500
[  675.121439]  __x64_sys_clone+0xbf/0x150
[  675.125398]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  675.130400]  do_syscall_64+0x1b9/0x820
[  675.134282]  ? syscall_return_slowpath+0x5e0/0x5e0
[  675.139195]  ? syscall_return_slowpath+0x31d/0x5e0
[  675.144114]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  675.149472]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  675.154301]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  675.159472] RIP: 0033:0x441519
[  675.162640] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  675.181811] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  675.189512] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  675.196763] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  675.204019] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  675.211287] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  675.218627] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  675.231098] FAULT_INJECTION: forcing a failure.
[  675.231098] name failslab, interval 1, probability 0, space 0, times 0
[  675.242368] CPU: 1 PID: 4722 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  675.249457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  675.258801] Call Trace:
[  675.261390]  dump_stack+0x1c9/0x2b4
[  675.264999]  ? dump_stack_print_info.cold.2+0x52/0x52
[  675.270185]  ? save_stack+0x43/0xd0
[  675.273795]  ? kasan_kmalloc+0xc4/0xe0
[  675.277663]  ? kasan_slab_alloc+0x12/0x20
[  675.281792]  ? kmem_cache_alloc+0x12e/0x760
[  675.286098]  ? copy_creds+0x7b/0x470
[  675.289803]  should_fail.cold.4+0xa/0x1a
[  675.293853]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  675.298942]  ? find_held_lock+0x36/0x1c0
[  675.303012]  ? find_held_lock+0x36/0x1c0
[  675.307092]  ? check_same_owner+0x340/0x340
[  675.311403]  ? rcu_is_watching+0x8c/0x150
[  675.315549]  ? rcu_note_context_switch+0x730/0x730
[  675.320467]  ? security_prepare_creds+0x94/0xc0
[  675.325133]  __should_failslab+0x124/0x180
[  675.329354]  should_failslab+0x9/0x14
[  675.333136]  kmem_cache_alloc+0x2af/0x760
[  675.337266]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  675.342270]  __delayacct_tsk_init+0x20/0x80
[  675.346585]  copy_process.part.39+0x2ba8/0x7250
[  675.351237]  ? __lock_acquire+0x7fc/0x5020
[  675.355459]  ? __lock_acquire+0x7fc/0x5020
[  675.359675]  ? __lock_acquire+0x7fc/0x5020
[  675.363898]  ? __cleanup_sighand+0x70/0x70
[  675.368120]  ? debug_check_no_locks_freed+0x310/0x310
[  675.373314]  ? debug_check_no_locks_freed+0x310/0x310
[  675.378488]  ? print_usage_bug+0xc0/0xc0
[  675.382535]  ? print_usage_bug+0xc0/0xc0
[  675.386583]  ? d_splice_alias+0x7c9/0x11f0
[  675.390813]  ? lock_downgrade+0x8f0/0x8f0
[  675.394955]  ? d_instantiate_anon+0x30/0x30
[  675.399260]  ? __lock_acquire+0x7fc/0x5020
[  675.403493]  ? print_usage_bug+0xc0/0xc0
[  675.407542]  ? debug_check_no_locks_freed+0x310/0x310
[  675.412724]  ? debug_check_no_locks_freed+0x310/0x310
[  675.417896]  ? __lock_acquire+0x7fc/0x5020
[  675.422111]  ? print_usage_bug+0xc0/0xc0
[  675.426176]  ? lock_downgrade+0x8f0/0x8f0
[  675.430333]  ? debug_check_no_locks_freed+0x310/0x310
[  675.435517]  ? print_usage_bug+0xc0/0xc0
[  675.439564]  ? graph_lock+0x170/0x170
[  675.443349]  ? do_raw_spin_lock+0xc1/0x200
[  675.447574]  ? graph_lock+0x170/0x170
[  675.451369]  ? graph_lock+0x170/0x170
[  675.455169]  ? find_held_lock+0x36/0x1c0
[  675.459226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.464745]  ? _parse_integer+0x13b/0x190
[  675.468887]  ? graph_lock+0x170/0x170
[  675.472672]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.478193]  ? _kstrtoull+0x188/0x250
[  675.481980]  ? _parse_integer+0x190/0x190
[  675.486110]  ? graph_lock+0x170/0x170
[  675.489894]  ? lock_release+0xa30/0xa30
[  675.493853]  ? find_held_lock+0x36/0x1c0
[  675.497916]  ? lock_downgrade+0x8f0/0x8f0
[  675.502062]  ? kasan_check_read+0x11/0x20
[  675.506203]  ? rcu_is_watching+0x8c/0x150
[  675.510333]  ? pid_task+0x115/0x200
[  675.513941]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  675.518343]  ? save_stack+0xa9/0xd0
[  675.521964]  ? graph_lock+0x170/0x170
[  675.525752]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.531400]  ? proc_fail_nth_write+0x9e/0x210
[  675.535878]  ? proc_cwd_link+0x1d0/0x1d0
[  675.539932]  ? kasan_check_read+0x11/0x20
[  675.544065]  ? find_held_lock+0x36/0x1c0
[  675.548113]  _do_fork+0x291/0x12a0
[  675.551638]  ? fork_idle+0x1a0/0x1a0
[  675.555337]  ? __lock_is_held+0xb5/0x140
[  675.559389]  ? __sb_end_write+0xac/0xe0
[  675.563345]  ? vfs_write+0x2a8/0x560
[  675.567055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.572578]  ? ksys_write+0x1ae/0x260
[  675.576359]  ? __ia32_sys_read+0xb0/0xb0
[  675.580404]  ? syscall_slow_exit_work+0x500/0x500
[  675.585266]  __x64_sys_clone+0xbf/0x150
[  675.589226]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  675.594228]  do_syscall_64+0x1b9/0x820
[  675.598099]  ? syscall_return_slowpath+0x5e0/0x5e0
[  675.603015]  ? syscall_return_slowpath+0x31d/0x5e0
[  675.607955]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  675.613305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  675.618138]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  675.623313] RIP: 0033:0x441519
[  675.626492] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  675.645677] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  675.653386] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  675.660639] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  675.671027] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  675.678304] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  675.685559] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  675.697408] FAULT_INJECTION: forcing a failure.
[  675.697408] name failslab, interval 1, probability 0, space 0, times 0
[  675.708703] CPU: 1 PID: 4724 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  675.715797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  675.725132] Call Trace:
[  675.727707]  dump_stack+0x1c9/0x2b4
[  675.731330]  ? dump_stack_print_info.cold.2+0x52/0x52
[  675.736511]  ? save_stack+0x43/0xd0
[  675.740131]  ? kasan_kmalloc+0xc4/0xe0
[  675.744002]  ? kasan_slab_alloc+0x12/0x20
[  675.748140]  ? kmem_cache_alloc+0x12e/0x760
[  675.752462]  ? copy_creds+0x7b/0x470
[  675.756165]  should_fail.cold.4+0xa/0x1a
[  675.760212]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  675.765305]  ? find_held_lock+0x36/0x1c0
[  675.769376]  ? find_held_lock+0x36/0x1c0
[  675.773441]  ? check_same_owner+0x340/0x340
[  675.777743]  ? rcu_is_watching+0x8c/0x150
[  675.781871]  ? rcu_note_context_switch+0x730/0x730
[  675.786785]  ? security_prepare_creds+0x94/0xc0
[  675.791444]  __should_failslab+0x124/0x180
[  675.795661]  should_failslab+0x9/0x14
[  675.799444]  kmem_cache_alloc+0x2af/0x760
[  675.803577]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  675.808580]  __delayacct_tsk_init+0x20/0x80
[  675.812890]  copy_process.part.39+0x2ba8/0x7250
[  675.817544]  ? __lock_acquire+0x7fc/0x5020
[  675.821763]  ? __lock_acquire+0x7fc/0x5020
[  675.825978]  ? __lock_acquire+0x7fc/0x5020
[  675.830221]  ? __cleanup_sighand+0x70/0x70
[  675.834438]  ? debug_check_no_locks_freed+0x310/0x310
[  675.839609]  ? debug_check_no_locks_freed+0x310/0x310
[  675.844783]  ? print_usage_bug+0xc0/0xc0
[  675.848839]  ? print_usage_bug+0xc0/0xc0
[  675.852883]  ? d_splice_alias+0x7c9/0x11f0
[  675.857101]  ? lock_downgrade+0x8f0/0x8f0
[  675.861232]  ? d_instantiate_anon+0x30/0x30
[  675.865543]  ? __lock_acquire+0x7fc/0x5020
[  675.869763]  ? print_usage_bug+0xc0/0xc0
[  675.873818]  ? debug_check_no_locks_freed+0x310/0x310
[  675.879002]  ? debug_check_no_locks_freed+0x310/0x310
[  675.884183]  ? __lock_acquire+0x7fc/0x5020
[  675.888398]  ? print_usage_bug+0xc0/0xc0
[  675.892452]  ? lock_downgrade+0x8f0/0x8f0
[  675.896586]  ? debug_check_no_locks_freed+0x310/0x310
[  675.901770]  ? print_usage_bug+0xc0/0xc0
[  675.905819]  ? graph_lock+0x170/0x170
[  675.909600]  ? do_raw_spin_lock+0xc1/0x200
[  675.913829]  ? graph_lock+0x170/0x170
[  675.917623]  ? graph_lock+0x170/0x170
[  675.921421]  ? find_held_lock+0x36/0x1c0
[  675.925486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.931010]  ? _parse_integer+0x13b/0x190
[  675.935148]  ? graph_lock+0x170/0x170
[  675.938930]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.944459]  ? _kstrtoull+0x188/0x250
[  675.948241]  ? _parse_integer+0x190/0x190
[  675.952371]  ? graph_lock+0x170/0x170
[  675.956154]  ? lock_release+0xa30/0xa30
[  675.960112]  ? find_held_lock+0x36/0x1c0
[  675.964171]  ? lock_downgrade+0x8f0/0x8f0
[  675.968329]  ? kasan_check_read+0x11/0x20
[  675.972468]  ? rcu_is_watching+0x8c/0x150
[  675.976596]  ? pid_task+0x115/0x200
[  675.980203]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  675.984596]  ? save_stack+0xa9/0xd0
[  675.988205]  ? graph_lock+0x170/0x170
[  675.991992]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  675.997525]  ? proc_fail_nth_write+0x9e/0x210
[  676.002002]  ? proc_cwd_link+0x1d0/0x1d0
[  676.006062]  ? kasan_check_read+0x11/0x20
[  676.010218]  ? find_held_lock+0x36/0x1c0
[  676.014269]  _do_fork+0x291/0x12a0
[  676.017801]  ? fork_idle+0x1a0/0x1a0
[  676.021530]  ? __lock_is_held+0xb5/0x140
[  676.025580]  ? __sb_end_write+0xac/0xe0
[  676.029536]  ? vfs_write+0x2a8/0x560
[  676.033238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.038757]  ? ksys_write+0x1ae/0x260
[  676.042553]  ? __ia32_sys_read+0xb0/0xb0
[  676.046618]  ? syscall_slow_exit_work+0x500/0x500
[  676.051447]  __x64_sys_clone+0xbf/0x150
[  676.055406]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  676.060408]  do_syscall_64+0x1b9/0x820
[  676.064278]  ? syscall_return_slowpath+0x5e0/0x5e0
[  676.069190]  ? syscall_return_slowpath+0x31d/0x5e0
[  676.074122]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  676.079483]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  676.084323]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  676.089519] RIP: 0033:0x441519
[  676.092699] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  676.111871] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  676.119565] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  676.126820] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  676.134073] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  676.141333] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  676.148583] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  676.160467] FAULT_INJECTION: forcing a failure.
[  676.160467] name failslab, interval 1, probability 0, space 0, times 0
[  676.171800] CPU: 1 PID: 4726 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  676.178889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  676.188239] Call Trace:
[  676.190819]  dump_stack+0x1c9/0x2b4
[  676.194432]  ? dump_stack_print_info.cold.2+0x52/0x52
[  676.199606]  ? save_stack+0x43/0xd0
[  676.203236]  ? kasan_kmalloc+0xc4/0xe0
[  676.207121]  ? kasan_slab_alloc+0x12/0x20
[  676.211252]  ? kmem_cache_alloc+0x12e/0x760
[  676.215553]  ? copy_creds+0x7b/0x470
[  676.219254]  should_fail.cold.4+0xa/0x1a
[  676.223301]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  676.228388]  ? find_held_lock+0x36/0x1c0
[  676.232447]  ? find_held_lock+0x36/0x1c0
[  676.236517]  ? check_same_owner+0x340/0x340
[  676.240831]  ? rcu_is_watching+0x8c/0x150
[  676.244971]  ? rcu_note_context_switch+0x730/0x730
[  676.249889]  ? security_prepare_creds+0x94/0xc0
[  676.254550]  __should_failslab+0x124/0x180
[  676.258769]  should_failslab+0x9/0x14
[  676.262562]  kmem_cache_alloc+0x2af/0x760
[  676.266693]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  676.271695]  __delayacct_tsk_init+0x20/0x80
[  676.276004]  copy_process.part.39+0x2ba8/0x7250
[  676.280672]  ? __lock_acquire+0x7fc/0x5020
[  676.284891]  ? __lock_acquire+0x7fc/0x5020
[  676.289120]  ? __lock_acquire+0x7fc/0x5020
[  676.293345]  ? __cleanup_sighand+0x70/0x70
[  676.297560]  ? debug_check_no_locks_freed+0x310/0x310
[  676.302734]  ? debug_check_no_locks_freed+0x310/0x310
[  676.307915]  ? print_usage_bug+0xc0/0xc0
[  676.311965]  ? print_usage_bug+0xc0/0xc0
[  676.316026]  ? d_splice_alias+0x7c9/0x11f0
[  676.320248]  ? lock_downgrade+0x8f0/0x8f0
[  676.324379]  ? d_instantiate_anon+0x30/0x30
[  676.328687]  ? __lock_acquire+0x7fc/0x5020
[  676.332918]  ? print_usage_bug+0xc0/0xc0
[  676.336974]  ? debug_check_no_locks_freed+0x310/0x310
[  676.342154]  ? debug_check_no_locks_freed+0x310/0x310
[  676.347765]  ? __lock_acquire+0x7fc/0x5020
[  676.351993]  ? print_usage_bug+0xc0/0xc0
[  676.356057]  ? lock_downgrade+0x8f0/0x8f0
[  676.360194]  ? debug_check_no_locks_freed+0x310/0x310
[  676.365369]  ? print_usage_bug+0xc0/0xc0
[  676.369414]  ? graph_lock+0x170/0x170
[  676.373214]  ? do_raw_spin_lock+0xc1/0x200
[  676.377437]  ? graph_lock+0x170/0x170
[  676.381221]  ? graph_lock+0x170/0x170
[  676.385013]  ? find_held_lock+0x36/0x1c0
[  676.389074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.394594]  ? _parse_integer+0x13b/0x190
[  676.398734]  ? graph_lock+0x170/0x170
[  676.402530]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  676.408052]  ? _kstrtoull+0x188/0x250
[  676.411835]  ? _parse_integer+0x190/0x190
[  676.415968]  ? graph_lock+0x170/0x170
[  676.419753]  ? lock_release+0xa30/0xa30
[  676.423711]  ? find_held_lock+0x36/0x1c0
[  676.427760]  ? lock_downgrade+0x8f0/0x8f0
[  676.431898]  ? kasan_check_read+0x11/0x20
[  676.436036]  ? rcu_is_watching+0x8c/0x150
[  676.440186]  ? pid_task+0x115/0x200
[  676.443797]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  676.448186]  ? save_stack+0xa9/0xd0
[  676.451811]  ? graph_lock+0x170/0x170
[  676.455594]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  676.461211]  ? proc_fail_nth_write+0x9e/0x210
[  676.465687]  ? proc_cwd_link+0x1d0/0x1d0
[  676.469732]  ? kasan_check_read+0x11/0x20
[  676.473863]  ? find_held_lock+0x36/0x1c0
[  676.477909]  _do_fork+0x291/0x12a0
[  676.481438]  ? fork_idle+0x1a0/0x1a0
[  676.485137]  ? __lock_is_held+0xb5/0x140
[  676.489187]  ? __sb_end_write+0xac/0xe0
[  676.493140]  ? vfs_write+0x2a8/0x560
[  676.496839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.502358]  ? ksys_write+0x1ae/0x260
[  676.506155]  ? __ia32_sys_read+0xb0/0xb0
[  676.510224]  ? syscall_slow_exit_work+0x500/0x500
[  676.515059]  __x64_sys_clone+0xbf/0x150
[  676.519042]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  676.524051]  do_syscall_64+0x1b9/0x820
[  676.527928]  ? syscall_return_slowpath+0x5e0/0x5e0
[  676.532841]  ? syscall_return_slowpath+0x31d/0x5e0
[  676.537760]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  676.543110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  676.547948]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  676.553118] RIP: 0033:0x441519
[  676.556286] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  676.575485] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  676.583192] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  676.590451] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  676.597706] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  676.604957] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  676.612207] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  676.623854] FAULT_INJECTION: forcing a failure.
[  676.623854] name failslab, interval 1, probability 0, space 0, times 0
[  676.635117] CPU: 1 PID: 4728 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  676.642219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  676.651553] Call Trace:
[  676.654130]  dump_stack+0x1c9/0x2b4
[  676.657742]  ? dump_stack_print_info.cold.2+0x52/0x52
[  676.662923]  ? save_stack+0x43/0xd0
[  676.666533]  ? kasan_kmalloc+0xc4/0xe0
[  676.670403]  ? kasan_slab_alloc+0x12/0x20
[  676.674532]  ? kmem_cache_alloc+0x12e/0x760
[  676.678836]  ? copy_creds+0x7b/0x470
[  676.682551]  should_fail.cold.4+0xa/0x1a
[  676.686608]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  676.691696]  ? find_held_lock+0x36/0x1c0
[  676.695746]  ? find_held_lock+0x36/0x1c0
[  676.699809]  ? check_same_owner+0x340/0x340
[  676.704124]  ? rcu_is_watching+0x8c/0x150
[  676.708259]  ? rcu_note_context_switch+0x730/0x730
[  676.713171]  ? security_prepare_creds+0x94/0xc0
[  676.717826]  __should_failslab+0x124/0x180
[  676.722055]  should_failslab+0x9/0x14
[  676.725855]  kmem_cache_alloc+0x2af/0x760
[  676.729987]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  676.735008]  __delayacct_tsk_init+0x20/0x80
[  676.739335]  copy_process.part.39+0x2ba8/0x7250
[  676.743989]  ? __lock_acquire+0x7fc/0x5020
[  676.748231]  ? __lock_acquire+0x7fc/0x5020
[  676.752469]  ? __lock_acquire+0x7fc/0x5020
[  676.756690]  ? __cleanup_sighand+0x70/0x70
[  676.760906]  ? debug_check_no_locks_freed+0x310/0x310
[  676.766090]  ? debug_check_no_locks_freed+0x310/0x310
[  676.771260]  ? print_usage_bug+0xc0/0xc0
[  676.775305]  ? print_usage_bug+0xc0/0xc0
[  676.779348]  ? d_splice_alias+0x7c9/0x11f0
[  676.783572]  ? lock_downgrade+0x8f0/0x8f0
[  676.787708]  ? d_instantiate_anon+0x30/0x30
[  676.792035]  ? __lock_acquire+0x7fc/0x5020
[  676.796259]  ? print_usage_bug+0xc0/0xc0
[  676.800305]  ? debug_check_no_locks_freed+0x310/0x310
[  676.805479]  ? debug_check_no_locks_freed+0x310/0x310
[  676.810666]  ? __lock_acquire+0x7fc/0x5020
[  676.814891]  ? print_usage_bug+0xc0/0xc0
[  676.818945]  ? lock_downgrade+0x8f0/0x8f0
[  676.823078]  ? debug_check_no_locks_freed+0x310/0x310
[  676.828262]  ? print_usage_bug+0xc0/0xc0
[  676.832306]  ? graph_lock+0x170/0x170
[  676.836090]  ? do_raw_spin_lock+0xc1/0x200
[  676.840309]  ? graph_lock+0x170/0x170
[  676.844091]  ? graph_lock+0x170/0x170
[  676.847880]  ? find_held_lock+0x36/0x1c0
[  676.851935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.857468]  ? _parse_integer+0x13b/0x190
[  676.861609]  ? graph_lock+0x170/0x170
[  676.865403]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  676.870920]  ? _kstrtoull+0x188/0x250
[  676.874716]  ? _parse_integer+0x190/0x190
[  676.878859]  ? graph_lock+0x170/0x170
[  676.882642]  ? lock_release+0xa30/0xa30
[  676.886598]  ? find_held_lock+0x36/0x1c0
[  676.890645]  ? lock_downgrade+0x8f0/0x8f0
[  676.894782]  ? kasan_check_read+0x11/0x20
[  676.898909]  ? rcu_is_watching+0x8c/0x150
[  676.903064]  ? pid_task+0x115/0x200
[  676.906675]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  676.911080]  ? save_stack+0xa9/0xd0
[  676.914693]  ? graph_lock+0x170/0x170
[  676.918489]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  676.924013]  ? proc_fail_nth_write+0x9e/0x210
[  676.928510]  ? proc_cwd_link+0x1d0/0x1d0
[  676.932558]  ? kasan_check_read+0x11/0x20
[  676.936695]  ? find_held_lock+0x36/0x1c0
[  676.940754]  _do_fork+0x291/0x12a0
[  676.944284]  ? fork_idle+0x1a0/0x1a0
[  676.947988]  ? __lock_is_held+0xb5/0x140
[  676.952053]  ? __sb_end_write+0xac/0xe0
[  676.956014]  ? vfs_write+0x2a8/0x560
[  676.959724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.965251]  ? ksys_write+0x1ae/0x260
[  676.969042]  ? __ia32_sys_read+0xb0/0xb0
[  676.973091]  ? syscall_slow_exit_work+0x500/0x500
[  676.977920]  __x64_sys_clone+0xbf/0x150
[  676.981883]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  676.986886]  do_syscall_64+0x1b9/0x820
[  676.990844]  ? syscall_return_slowpath+0x5e0/0x5e0
[  676.995763]  ? syscall_return_slowpath+0x31d/0x5e0
[  677.000680]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  677.006040]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  677.010877]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  677.016054] RIP: 0033:0x441519
[  677.019230] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  677.038403] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  677.046103] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  677.053354] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  677.060614] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  677.067864] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  677.075123] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  677.086913] FAULT_INJECTION: forcing a failure.
[  677.086913] name failslab, interval 1, probability 0, space 0, times 0
[  677.098145] CPU: 0 PID: 4730 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  677.105225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  677.114569] Call Trace:
[  677.117155]  dump_stack+0x1c9/0x2b4
[  677.120765]  ? dump_stack_print_info.cold.2+0x52/0x52
[  677.125942]  ? save_stack+0x43/0xd0
[  677.129553]  ? kasan_kmalloc+0xc4/0xe0
[  677.133434]  ? kasan_slab_alloc+0x12/0x20
[  677.137563]  ? kmem_cache_alloc+0x12e/0x760
[  677.141866]  ? copy_creds+0x7b/0x470
[  677.145578]  should_fail.cold.4+0xa/0x1a
[  677.149633]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  677.154720]  ? find_held_lock+0x36/0x1c0
[  677.158769]  ? find_held_lock+0x36/0x1c0
[  677.162821]  ? check_same_owner+0x340/0x340
[  677.167122]  ? rcu_is_watching+0x8c/0x150
[  677.171251]  ? rcu_note_context_switch+0x730/0x730
[  677.176167]  ? security_prepare_creds+0x94/0xc0
[  677.180827]  __should_failslab+0x124/0x180
[  677.185049]  should_failslab+0x9/0x14
[  677.188831]  kmem_cache_alloc+0x2af/0x760
[  677.192962]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  677.197981]  __delayacct_tsk_init+0x20/0x80
[  677.202289]  copy_process.part.39+0x2ba8/0x7250
[  677.206942]  ? __lock_acquire+0x7fc/0x5020
[  677.211159]  ? __lock_acquire+0x7fc/0x5020
[  677.215376]  ? __lock_acquire+0x7fc/0x5020
[  677.219608]  ? __cleanup_sighand+0x70/0x70
[  677.223826]  ? debug_check_no_locks_freed+0x310/0x310
[  677.229005]  ? debug_check_no_locks_freed+0x310/0x310
[  677.234185]  ? print_usage_bug+0xc0/0xc0
[  677.238232]  ? print_usage_bug+0xc0/0xc0
[  677.242285]  ? d_splice_alias+0x7c9/0x11f0
[  677.246502]  ? lock_downgrade+0x8f0/0x8f0
[  677.250631]  ? d_instantiate_anon+0x30/0x30
[  677.254938]  ? __lock_acquire+0x7fc/0x5020
[  677.259155]  ? print_usage_bug+0xc0/0xc0
[  677.263200]  ? debug_check_no_locks_freed+0x310/0x310
[  677.268375]  ? debug_check_no_locks_freed+0x310/0x310
[  677.273558]  ? __lock_acquire+0x7fc/0x5020
[  677.277791]  ? print_usage_bug+0xc0/0xc0
[  677.281849]  ? lock_downgrade+0x8f0/0x8f0
[  677.285990]  ? debug_check_no_locks_freed+0x310/0x310
[  677.291169]  ? print_usage_bug+0xc0/0xc0
[  677.295211]  ? graph_lock+0x170/0x170
[  677.298990]  ? do_raw_spin_lock+0xc1/0x200
[  677.303208]  ? graph_lock+0x170/0x170
[  677.306999]  ? graph_lock+0x170/0x170
[  677.310804]  ? find_held_lock+0x36/0x1c0
[  677.314853]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.320375]  ? _parse_integer+0x13b/0x190
[  677.324504]  ? graph_lock+0x170/0x170
[  677.328289]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  677.333807]  ? _kstrtoull+0x188/0x250
[  677.337588]  ? _parse_integer+0x190/0x190
[  677.341718]  ? graph_lock+0x170/0x170
[  677.345510]  ? lock_release+0xa30/0xa30
[  677.349467]  ? find_held_lock+0x36/0x1c0
[  677.353511]  ? lock_downgrade+0x8f0/0x8f0
[  677.357652]  ? kasan_check_read+0x11/0x20
[  677.361780]  ? rcu_is_watching+0x8c/0x150
[  677.365926]  ? pid_task+0x115/0x200
[  677.369533]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  677.373925]  ? save_stack+0xa9/0xd0
[  677.377535]  ? graph_lock+0x170/0x170
[  677.381320]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  677.386847]  ? proc_fail_nth_write+0x9e/0x210
[  677.391322]  ? proc_cwd_link+0x1d0/0x1d0
[  677.395365]  ? kasan_check_read+0x11/0x20
[  677.399498]  ? find_held_lock+0x36/0x1c0
[  677.403555]  _do_fork+0x291/0x12a0
[  677.407079]  ? fork_idle+0x1a0/0x1a0
[  677.410775]  ? __lock_is_held+0xb5/0x140
[  677.414824]  ? __sb_end_write+0xac/0xe0
[  677.418789]  ? vfs_write+0x2a8/0x560
[  677.422499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.428034]  ? ksys_write+0x1ae/0x260
[  677.431822]  ? __ia32_sys_read+0xb0/0xb0
[  677.435869]  ? syscall_slow_exit_work+0x500/0x500
[  677.440698]  __x64_sys_clone+0xbf/0x150
[  677.444666]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  677.449663]  do_syscall_64+0x1b9/0x820
[  677.453534]  ? syscall_return_slowpath+0x5e0/0x5e0
[  677.458455]  ? syscall_return_slowpath+0x31d/0x5e0
[  677.463371]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  677.468719]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  677.473546]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  677.478717] RIP: 0033:0x441519
[  677.481887] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  677.501120] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  677.508812] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  677.516060] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  677.523310] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  677.530567] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  677.537817] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  677.550175] FAULT_INJECTION: forcing a failure.
[  677.550175] name failslab, interval 1, probability 0, space 0, times 0
[  677.561426] CPU: 0 PID: 4732 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  677.568520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  677.577852] Call Trace:
[  677.580436]  dump_stack+0x1c9/0x2b4
[  677.584054]  ? dump_stack_print_info.cold.2+0x52/0x52
[  677.589232]  ? save_stack+0x43/0xd0
[  677.592847]  ? kasan_kmalloc+0xc4/0xe0
[  677.596715]  ? kasan_slab_alloc+0x12/0x20
[  677.600841]  ? kmem_cache_alloc+0x12e/0x760
[  677.605146]  ? copy_creds+0x7b/0x470
[  677.608855]  should_fail.cold.4+0xa/0x1a
[  677.612919]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  677.618022]  ? find_held_lock+0x36/0x1c0
[  677.622084]  ? find_held_lock+0x36/0x1c0
[  677.626146]  ? check_same_owner+0x340/0x340
[  677.630448]  ? rcu_is_watching+0x8c/0x150
[  677.634664]  ? rcu_note_context_switch+0x730/0x730
[  677.639577]  ? security_prepare_creds+0x94/0xc0
[  677.644230]  __should_failslab+0x124/0x180
[  677.648448]  should_failslab+0x9/0x14
[  677.652229]  kmem_cache_alloc+0x2af/0x760
[  677.656360]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  677.661365]  __delayacct_tsk_init+0x20/0x80
[  677.665674]  copy_process.part.39+0x2ba8/0x7250
[  677.670334]  ? __lock_acquire+0x7fc/0x5020
[  677.674563]  ? __lock_acquire+0x7fc/0x5020
[  677.678789]  ? __lock_acquire+0x7fc/0x5020
[  677.683027]  ? __cleanup_sighand+0x70/0x70
[  677.687248]  ? debug_check_no_locks_freed+0x310/0x310
[  677.692427]  ? debug_check_no_locks_freed+0x310/0x310
[  677.697611]  ? print_usage_bug+0xc0/0xc0
[  677.701656]  ? print_usage_bug+0xc0/0xc0
[  677.705701]  ? d_splice_alias+0x7c9/0x11f0
[  677.709921]  ? lock_downgrade+0x8f0/0x8f0
[  677.714058]  ? d_instantiate_anon+0x30/0x30
[  677.718365]  ? __lock_acquire+0x7fc/0x5020
[  677.722584]  ? print_usage_bug+0xc0/0xc0
[  677.726632]  ? debug_check_no_locks_freed+0x310/0x310
[  677.731831]  ? debug_check_no_locks_freed+0x310/0x310
[  677.737026]  ? __lock_acquire+0x7fc/0x5020
[  677.741248]  ? print_usage_bug+0xc0/0xc0
[  677.745293]  ? lock_downgrade+0x8f0/0x8f0
[  677.749439]  ? debug_check_no_locks_freed+0x310/0x310
[  677.754622]  ? print_usage_bug+0xc0/0xc0
[  677.758676]  ? graph_lock+0x170/0x170
[  677.762465]  ? do_raw_spin_lock+0xc1/0x200
[  677.766704]  ? graph_lock+0x170/0x170
[  677.770490]  ? graph_lock+0x170/0x170
[  677.774292]  ? find_held_lock+0x36/0x1c0
[  677.778340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.783861]  ? _parse_integer+0x13b/0x190
[  677.787997]  ? graph_lock+0x170/0x170
[  677.791797]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  677.797326]  ? _kstrtoull+0x188/0x250
[  677.801718]  ? _parse_integer+0x190/0x190
[  677.805848]  ? graph_lock+0x170/0x170
[  677.809645]  ? lock_release+0xa30/0xa30
[  677.813612]  ? find_held_lock+0x36/0x1c0
[  677.817668]  ? lock_downgrade+0x8f0/0x8f0
[  677.821801]  ? kasan_check_read+0x11/0x20
[  677.826037]  ? rcu_is_watching+0x8c/0x150
[  677.830173]  ? pid_task+0x115/0x200
[  677.833781]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  677.838200]  ? save_stack+0xa9/0xd0
[  677.841832]  ? graph_lock+0x170/0x170
[  677.845634]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  677.851163]  ? proc_fail_nth_write+0x9e/0x210
[  677.855648]  ? proc_cwd_link+0x1d0/0x1d0
[  677.859704]  ? kasan_check_read+0x11/0x20
[  677.863840]  ? find_held_lock+0x36/0x1c0
[  677.867888]  _do_fork+0x291/0x12a0
[  677.871424]  ? fork_idle+0x1a0/0x1a0
[  677.875130]  ? __lock_is_held+0xb5/0x140
[  677.879199]  ? __sb_end_write+0xac/0xe0
[  677.883152]  ? vfs_write+0x2a8/0x560
[  677.886852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.892385]  ? ksys_write+0x1ae/0x260
[  677.896180]  ? __ia32_sys_read+0xb0/0xb0
[  677.900230]  ? syscall_slow_exit_work+0x500/0x500
[  677.905062]  __x64_sys_clone+0xbf/0x150
[  677.909030]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  677.914047]  do_syscall_64+0x1b9/0x820
[  677.917924]  ? syscall_slow_exit_work+0x500/0x500
[  677.922753]  ? syscall_return_slowpath+0x5e0/0x5e0
[  677.927681]  ? syscall_return_slowpath+0x31d/0x5e0
[  677.932611]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  677.937973]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  677.942803]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  677.947995] RIP: 0033:0x441519
[  677.951173] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  677.970394] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  677.978102] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  677.985353] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  677.992618] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  677.999888] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  678.007139] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  678.019621] FAULT_INJECTION: forcing a failure.
[  678.019621] name failslab, interval 1, probability 0, space 0, times 0
[  678.030882] CPU: 0 PID: 4734 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  678.037975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  678.047311] Call Trace:
[  678.049890]  dump_stack+0x1c9/0x2b4
[  678.053512]  ? dump_stack_print_info.cold.2+0x52/0x52
[  678.058699]  ? save_stack+0x43/0xd0
[  678.062307]  ? kasan_kmalloc+0xc4/0xe0
[  678.066179]  ? kasan_slab_alloc+0x12/0x20
[  678.070317]  ? kmem_cache_alloc+0x12e/0x760
[  678.074645]  ? copy_creds+0x7b/0x470
[  678.078358]  should_fail.cold.4+0xa/0x1a
[  678.082406]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  678.087495]  ? find_held_lock+0x36/0x1c0
[  678.091547]  ? find_held_lock+0x36/0x1c0
[  678.095613]  ? check_same_owner+0x340/0x340
[  678.099937]  ? rcu_is_watching+0x8c/0x150
[  678.104090]  ? rcu_note_context_switch+0x730/0x730
[  678.109007]  ? security_prepare_creds+0x94/0xc0
[  678.113670]  __should_failslab+0x124/0x180
[  678.117889]  should_failslab+0x9/0x14
[  678.121672]  kmem_cache_alloc+0x2af/0x760
[  678.125807]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  678.130826]  __delayacct_tsk_init+0x20/0x80
[  678.135138]  copy_process.part.39+0x2ba8/0x7250
[  678.139793]  ? __lock_acquire+0x7fc/0x5020
[  678.144033]  ? __lock_acquire+0x7fc/0x5020
[  678.148266]  ? __lock_acquire+0x7fc/0x5020
[  678.152490]  ? __cleanup_sighand+0x70/0x70
[  678.156723]  ? debug_check_no_locks_freed+0x310/0x310
[  678.161902]  ? debug_check_no_locks_freed+0x310/0x310
[  678.167087]  ? print_usage_bug+0xc0/0xc0
[  678.171147]  ? print_usage_bug+0xc0/0xc0
[  678.175215]  ? d_splice_alias+0x7c9/0x11f0
[  678.179438]  ? lock_downgrade+0x8f0/0x8f0
[  678.183569]  ? d_instantiate_anon+0x30/0x30
[  678.187876]  ? __lock_acquire+0x7fc/0x5020
[  678.192109]  ? print_usage_bug+0xc0/0xc0
[  678.196157]  ? debug_check_no_locks_freed+0x310/0x310
[  678.201332]  ? debug_check_no_locks_freed+0x310/0x310
[  678.206509]  ? __lock_acquire+0x7fc/0x5020
[  678.210727]  ? print_usage_bug+0xc0/0xc0
[  678.214780]  ? lock_downgrade+0x8f0/0x8f0
[  678.218931]  ? debug_check_no_locks_freed+0x310/0x310
[  678.224120]  ? print_usage_bug+0xc0/0xc0
[  678.228165]  ? graph_lock+0x170/0x170
[  678.231960]  ? do_raw_spin_lock+0xc1/0x200
[  678.236183]  ? graph_lock+0x170/0x170
[  678.239982]  ? graph_lock+0x170/0x170
[  678.243783]  ? find_held_lock+0x36/0x1c0
[  678.247827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.253349]  ? _parse_integer+0x13b/0x190
[  678.257487]  ? graph_lock+0x170/0x170
[  678.261271]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  678.266804]  ? _kstrtoull+0x188/0x250
[  678.270604]  ? _parse_integer+0x190/0x190
[  678.274735]  ? graph_lock+0x170/0x170
[  678.278525]  ? lock_release+0xa30/0xa30
[  678.282496]  ? find_held_lock+0x36/0x1c0
[  678.286542]  ? lock_downgrade+0x8f0/0x8f0
[  678.290693]  ? kasan_check_read+0x11/0x20
[  678.294835]  ? rcu_is_watching+0x8c/0x150
[  678.298981]  ? pid_task+0x115/0x200
[  678.302591]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  678.306983]  ? save_stack+0xa9/0xd0
[  678.310597]  ? graph_lock+0x170/0x170
[  678.314395]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  678.319922]  ? proc_fail_nth_write+0x9e/0x210
[  678.324412]  ? proc_cwd_link+0x1d0/0x1d0
[  678.328459]  ? kasan_check_read+0x11/0x20
[  678.332598]  ? find_held_lock+0x36/0x1c0
[  678.336647]  _do_fork+0x291/0x12a0
[  678.340174]  ? fork_idle+0x1a0/0x1a0
[  678.343869]  ? __lock_is_held+0xb5/0x140
[  678.347919]  ? __sb_end_write+0xac/0xe0
[  678.351872]  ? vfs_write+0x2a8/0x560
[  678.355571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.361091]  ? ksys_write+0x1ae/0x260
[  678.364875]  ? __ia32_sys_read+0xb0/0xb0
[  678.369435]  ? syscall_slow_exit_work+0x500/0x500
[  678.374263]  __x64_sys_clone+0xbf/0x150
[  678.378222]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  678.383221]  do_syscall_64+0x1b9/0x820
[  678.387090]  ? syscall_return_slowpath+0x5e0/0x5e0
[  678.392025]  ? syscall_return_slowpath+0x31d/0x5e0
[  678.396947]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  678.402991]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  678.407829]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  678.413010] RIP: 0033:0x441519
[  678.416184] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  678.435390] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  678.443095] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  678.450364] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  678.457631] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  678.464896] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  678.472160] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  678.486503] FAULT_INJECTION: forcing a failure.
[  678.486503] name failslab, interval 1, probability 0, space 0, times 0
[  678.497782] CPU: 1 PID: 4736 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  678.504880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  678.514216] Call Trace:
[  678.516795]  dump_stack+0x1c9/0x2b4
[  678.520409]  ? dump_stack_print_info.cold.2+0x52/0x52
[  678.525586]  ? save_stack+0x43/0xd0
[  678.529205]  ? kasan_kmalloc+0xc4/0xe0
[  678.533076]  ? kasan_slab_alloc+0x12/0x20
[  678.537216]  ? kmem_cache_alloc+0x12e/0x760
[  678.541524]  ? copy_creds+0x7b/0x470
[  678.545249]  should_fail.cold.4+0xa/0x1a
[  678.549307]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  678.554409]  ? find_held_lock+0x36/0x1c0
[  678.558475]  ? find_held_lock+0x36/0x1c0
[  678.562531]  ? check_same_owner+0x340/0x340
[  678.566834]  ? rcu_is_watching+0x8c/0x150
[  678.570965]  ? rcu_note_context_switch+0x730/0x730
[  678.575877]  ? security_prepare_creds+0x94/0xc0
[  678.580550]  __should_failslab+0x124/0x180
[  678.584802]  should_failslab+0x9/0x14
[  678.588590]  kmem_cache_alloc+0x2af/0x760
[  678.592723]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  678.597728]  __delayacct_tsk_init+0x20/0x80
[  678.602043]  copy_process.part.39+0x2ba8/0x7250
[  678.606703]  ? __lock_acquire+0x7fc/0x5020
[  678.610928]  ? __lock_acquire+0x7fc/0x5020
[  678.615146]  ? __lock_acquire+0x7fc/0x5020
[  678.619369]  ? __cleanup_sighand+0x70/0x70
[  678.623594]  ? debug_check_no_locks_freed+0x310/0x310
[  678.628767]  ? debug_check_no_locks_freed+0x310/0x310
[  678.633941]  ? print_usage_bug+0xc0/0xc0
[  678.637989]  ? print_usage_bug+0xc0/0xc0
[  678.642060]  ? d_splice_alias+0x7c9/0x11f0
[  678.646279]  ? lock_downgrade+0x8f0/0x8f0
[  678.650435]  ? d_instantiate_anon+0x30/0x30
[  678.654752]  ? __lock_acquire+0x7fc/0x5020
[  678.658981]  ? print_usage_bug+0xc0/0xc0
[  678.663050]  ? debug_check_no_locks_freed+0x310/0x310
[  678.668239]  ? debug_check_no_locks_freed+0x310/0x310
[  678.673422]  ? __lock_acquire+0x7fc/0x5020
[  678.677656]  ? print_usage_bug+0xc0/0xc0
[  678.681707]  ? lock_downgrade+0x8f0/0x8f0
[  678.685843]  ? debug_check_no_locks_freed+0x310/0x310
[  678.691026]  ? print_usage_bug+0xc0/0xc0
[  678.695079]  ? graph_lock+0x170/0x170
[  678.698862]  ? do_raw_spin_lock+0xc1/0x200
[  678.703095]  ? graph_lock+0x170/0x170
[  678.706879]  ? graph_lock+0x170/0x170
[  678.710664]  ? find_held_lock+0x36/0x1c0
[  678.714709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.720244]  ? _parse_integer+0x13b/0x190
[  678.724379]  ? graph_lock+0x170/0x170
[  678.728163]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  678.733684]  ? _kstrtoull+0x188/0x250
[  678.737467]  ? _parse_integer+0x190/0x190
[  678.741607]  ? graph_lock+0x170/0x170
[  678.745400]  ? lock_release+0xa30/0xa30
[  678.749357]  ? find_held_lock+0x36/0x1c0
[  678.753404]  ? lock_downgrade+0x8f0/0x8f0
[  678.757540]  ? kasan_check_read+0x11/0x20
[  678.761668]  ? rcu_is_watching+0x8c/0x150
[  678.765797]  ? pid_task+0x115/0x200
[  678.769411]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  678.773805]  ? save_stack+0xa9/0xd0
[  678.777415]  ? graph_lock+0x170/0x170
[  678.781210]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  678.786740]  ? proc_fail_nth_write+0x9e/0x210
[  678.791229]  ? proc_cwd_link+0x1d0/0x1d0
[  678.795273]  ? kasan_check_read+0x11/0x20
[  678.799418]  ? find_held_lock+0x36/0x1c0
[  678.803465]  _do_fork+0x291/0x12a0
[  678.806993]  ? fork_idle+0x1a0/0x1a0
[  678.810703]  ? __lock_is_held+0xb5/0x140
[  678.814752]  ? __sb_end_write+0xac/0xe0
[  678.818707]  ? vfs_write+0x2a8/0x560
[  678.822415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.827933]  ? ksys_write+0x1ae/0x260
[  678.831715]  ? __ia32_sys_read+0xb0/0xb0
[  678.835762]  ? syscall_slow_exit_work+0x500/0x500
[  678.840599]  __x64_sys_clone+0xbf/0x150
[  678.844565]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  678.849586]  do_syscall_64+0x1b9/0x820
[  678.853468]  ? syscall_return_slowpath+0x5e0/0x5e0
[  678.858380]  ? syscall_return_slowpath+0x31d/0x5e0
[  678.863317]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  678.868667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  678.873505]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  678.878677] RIP: 0033:0x441519
[  678.881846] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  678.901057] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  678.908749] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  678.916005] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  678.923264] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  678.930521] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  678.937773] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  678.949953] FAULT_INJECTION: forcing a failure.
[  678.949953] name failslab, interval 1, probability 0, space 0, times 0
[  678.961234] CPU: 1 PID: 4738 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  678.968323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  678.977659] Call Trace:
[  678.980233]  dump_stack+0x1c9/0x2b4
[  678.983854]  ? dump_stack_print_info.cold.2+0x52/0x52
[  678.989041]  ? save_stack+0x43/0xd0
[  678.992663]  ? kasan_kmalloc+0xc4/0xe0
[  678.996542]  ? kasan_slab_alloc+0x12/0x20
[  679.000677]  ? kmem_cache_alloc+0x12e/0x760
[  679.005095]  ? copy_creds+0x7b/0x470
[  679.008798]  should_fail.cold.4+0xa/0x1a
[  679.012845]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.017944]  ? find_held_lock+0x36/0x1c0
[  679.021994]  ? find_held_lock+0x36/0x1c0
[  679.026055]  ? check_same_owner+0x340/0x340
[  679.030359]  ? rcu_is_watching+0x8c/0x150
[  679.034491]  ? rcu_note_context_switch+0x730/0x730
[  679.039415]  ? security_prepare_creds+0x94/0xc0
[  679.044072]  __should_failslab+0x124/0x180
[  679.048321]  should_failslab+0x9/0x14
[  679.052110]  kmem_cache_alloc+0x2af/0x760
[  679.056244]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  679.061248]  __delayacct_tsk_init+0x20/0x80
[  679.065569]  copy_process.part.39+0x2ba8/0x7250
[  679.070223]  ? __lock_acquire+0x7fc/0x5020
[  679.074441]  ? __lock_acquire+0x7fc/0x5020
[  679.078663]  ? __lock_acquire+0x7fc/0x5020
[  679.082888]  ? __cleanup_sighand+0x70/0x70
[  679.087119]  ? debug_check_no_locks_freed+0x310/0x310
[  679.092290]  ? debug_check_no_locks_freed+0x310/0x310
[  679.097462]  ? print_usage_bug+0xc0/0xc0
[  679.101511]  ? print_usage_bug+0xc0/0xc0
[  679.105567]  ? d_splice_alias+0x7c9/0x11f0
[  679.109784]  ? lock_downgrade+0x8f0/0x8f0
[  679.113913]  ? d_instantiate_anon+0x30/0x30
[  679.118234]  ? __lock_acquire+0x7fc/0x5020
[  679.122463]  ? print_usage_bug+0xc0/0xc0
[  679.126508]  ? debug_check_no_locks_freed+0x310/0x310
[  679.131686]  ? debug_check_no_locks_freed+0x310/0x310
[  679.136862]  ? __lock_acquire+0x7fc/0x5020
[  679.141083]  ? print_usage_bug+0xc0/0xc0
[  679.145129]  ? lock_downgrade+0x8f0/0x8f0
[  679.149270]  ? debug_check_no_locks_freed+0x310/0x310
[  679.154443]  ? print_usage_bug+0xc0/0xc0
[  679.158487]  ? graph_lock+0x170/0x170
[  679.162291]  ? do_raw_spin_lock+0xc1/0x200
[  679.166520]  ? graph_lock+0x170/0x170
[  679.170303]  ? graph_lock+0x170/0x170
[  679.174088]  ? find_held_lock+0x36/0x1c0
[  679.178149]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.183670]  ? _parse_integer+0x13b/0x190
[  679.187810]  ? graph_lock+0x170/0x170
[  679.191598]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  679.197901]  ? _kstrtoull+0x188/0x250
[  679.201689]  ? _parse_integer+0x190/0x190
[  679.205819]  ? graph_lock+0x170/0x170
[  679.209629]  ? lock_release+0xa30/0xa30
[  679.213599]  ? find_held_lock+0x36/0x1c0
[  679.217648]  ? lock_downgrade+0x8f0/0x8f0
[  679.221797]  ? kasan_check_read+0x11/0x20
[  679.225928]  ? rcu_is_watching+0x8c/0x150
[  679.230059]  ? pid_task+0x115/0x200
[  679.233676]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  679.238069]  ? save_stack+0xa9/0xd0
[  679.241677]  ? graph_lock+0x170/0x170
[  679.245466]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  679.250991]  ? proc_fail_nth_write+0x9e/0x210
[  679.255475]  ? proc_cwd_link+0x1d0/0x1d0
[  679.259522]  ? kasan_check_read+0x11/0x20
[  679.263655]  ? find_held_lock+0x36/0x1c0
[  679.267703]  _do_fork+0x291/0x12a0
[  679.271229]  ? fork_idle+0x1a0/0x1a0
[  679.274932]  ? __lock_is_held+0xb5/0x140
[  679.278996]  ? __sb_end_write+0xac/0xe0
[  679.282956]  ? vfs_write+0x2a8/0x560
[  679.286669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.292188]  ? ksys_write+0x1ae/0x260
[  679.295971]  ? __ia32_sys_read+0xb0/0xb0
[  679.300022]  ? syscall_slow_exit_work+0x500/0x500
[  679.304872]  __x64_sys_clone+0xbf/0x150
[  679.308864]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  679.313880]  do_syscall_64+0x1b9/0x820
[  679.317751]  ? syscall_return_slowpath+0x5e0/0x5e0
[  679.322664]  ? syscall_return_slowpath+0x31d/0x5e0
[  679.327595]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  679.332956]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  679.337802]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  679.342975] RIP: 0033:0x441519
[  679.346154] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  679.365342] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  679.373044] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  679.380307] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  679.387560] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  679.394812] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  679.402068] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  679.413943] FAULT_INJECTION: forcing a failure.
[  679.413943] name failslab, interval 1, probability 0, space 0, times 0
[  679.425216] CPU: 1 PID: 4740 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  679.432307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  679.441657] Call Trace:
[  679.444257]  dump_stack+0x1c9/0x2b4
[  679.447875]  ? dump_stack_print_info.cold.2+0x52/0x52
[  679.453054]  ? save_stack+0x43/0xd0
[  679.456666]  ? kasan_kmalloc+0xc4/0xe0
[  679.460549]  ? kasan_slab_alloc+0x12/0x20
[  679.464679]  ? kmem_cache_alloc+0x12e/0x760
[  679.468982]  ? copy_creds+0x7b/0x470
[  679.472688]  should_fail.cold.4+0xa/0x1a
[  679.476745]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.481831]  ? find_held_lock+0x36/0x1c0
[  679.485881]  ? find_held_lock+0x36/0x1c0
[  679.489937]  ? check_same_owner+0x340/0x340
[  679.494250]  ? rcu_is_watching+0x8c/0x150
[  679.498380]  ? rcu_note_context_switch+0x730/0x730
[  679.503294]  ? security_prepare_creds+0x94/0xc0
[  679.507949]  __should_failslab+0x124/0x180
[  679.512175]  should_failslab+0x9/0x14
[  679.515959]  kmem_cache_alloc+0x2af/0x760
[  679.520092]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  679.525096]  __delayacct_tsk_init+0x20/0x80
[  679.529405]  copy_process.part.39+0x2ba8/0x7250
[  679.534071]  ? __lock_acquire+0x7fc/0x5020
[  679.538297]  ? __lock_acquire+0x7fc/0x5020
[  679.542516]  ? __lock_acquire+0x7fc/0x5020
[  679.546751]  ? __cleanup_sighand+0x70/0x70
[  679.550970]  ? debug_check_no_locks_freed+0x310/0x310
[  679.557114]  ? debug_check_no_locks_freed+0x310/0x310
[  679.562301]  ? print_usage_bug+0xc0/0xc0
[  679.566357]  ? print_usage_bug+0xc0/0xc0
[  679.570400]  ? d_splice_alias+0x7c9/0x11f0
[  679.574617]  ? lock_downgrade+0x8f0/0x8f0
[  679.578761]  ? d_instantiate_anon+0x30/0x30
[  679.583071]  ? __lock_acquire+0x7fc/0x5020
[  679.587293]  ? print_usage_bug+0xc0/0xc0
[  679.591340]  ? debug_check_no_locks_freed+0x310/0x310
[  679.596518]  ? debug_check_no_locks_freed+0x310/0x310
[  679.601700]  ? __lock_acquire+0x7fc/0x5020
[  679.605929]  ? print_usage_bug+0xc0/0xc0
[  679.609975]  ? lock_downgrade+0x8f0/0x8f0
[  679.614114]  ? debug_check_no_locks_freed+0x310/0x310
[  679.619291]  ? print_usage_bug+0xc0/0xc0
[  679.623337]  ? graph_lock+0x170/0x170
[  679.627122]  ? do_raw_spin_lock+0xc1/0x200
[  679.631342]  ? graph_lock+0x170/0x170
[  679.635125]  ? graph_lock+0x170/0x170
[  679.638914]  ? find_held_lock+0x36/0x1c0
[  679.642960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.648494]  ? _parse_integer+0x13b/0x190
[  679.652626]  ? graph_lock+0x170/0x170
[  679.656412]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  679.661932]  ? _kstrtoull+0x188/0x250
[  679.665715]  ? _parse_integer+0x190/0x190
[  679.669862]  ? graph_lock+0x170/0x170
[  679.673666]  ? lock_release+0xa30/0xa30
[  679.677628]  ? find_held_lock+0x36/0x1c0
[  679.681688]  ? lock_downgrade+0x8f0/0x8f0
[  679.685828]  ? kasan_check_read+0x11/0x20
[  679.689957]  ? rcu_is_watching+0x8c/0x150
[  679.694088]  ? pid_task+0x115/0x200
[  679.697696]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  679.702091]  ? save_stack+0xa9/0xd0
[  679.705709]  ? graph_lock+0x170/0x170
[  679.709506]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  679.715037]  ? proc_fail_nth_write+0x9e/0x210
[  679.719522]  ? proc_cwd_link+0x1d0/0x1d0
[  679.723568]  ? kasan_check_read+0x11/0x20
[  679.727711]  ? find_held_lock+0x36/0x1c0
[  679.731760]  _do_fork+0x291/0x12a0
[  679.735284]  ? fork_idle+0x1a0/0x1a0
[  679.738982]  ? __lock_is_held+0xb5/0x140
[  679.743043]  ? __sb_end_write+0xac/0xe0
[  679.747000]  ? vfs_write+0x2a8/0x560
[  679.750718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.756238]  ? ksys_write+0x1ae/0x260
[  679.760043]  ? __ia32_sys_read+0xb0/0xb0
[  679.764095]  ? syscall_slow_exit_work+0x500/0x500
[  679.768922]  __x64_sys_clone+0xbf/0x150
[  679.772881]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  679.777881]  do_syscall_64+0x1b9/0x820
[  679.781761]  ? syscall_return_slowpath+0x5e0/0x5e0
[  679.786686]  ? syscall_return_slowpath+0x31d/0x5e0
[  679.791603]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  679.796950]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  679.801777]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  679.806948] RIP: 0033:0x441519
[  679.810115] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  679.829294] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  679.837002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  679.844262] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  679.851514] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  679.858771] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  679.866031] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  679.877849] FAULT_INJECTION: forcing a failure.
[  679.877849] name failslab, interval 1, probability 0, space 0, times 0
[  679.889123] CPU: 1 PID: 4742 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  679.896222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  679.905570] Call Trace:
[  679.908161]  dump_stack+0x1c9/0x2b4
[  679.911784]  ? dump_stack_print_info.cold.2+0x52/0x52
[  679.916961]  ? save_stack+0x43/0xd0
[  679.920570]  ? kasan_kmalloc+0xc4/0xe0
[  679.924442]  ? kasan_slab_alloc+0x12/0x20
[  679.928580]  ? kmem_cache_alloc+0x12e/0x760
[  679.932886]  ? copy_creds+0x7b/0x470
[  679.936589]  should_fail.cold.4+0xa/0x1a
[  679.940640]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.945730]  ? find_held_lock+0x36/0x1c0
[  679.949800]  ? find_held_lock+0x36/0x1c0
[  679.953853]  ? check_same_owner+0x340/0x340
[  679.958155]  ? rcu_is_watching+0x8c/0x150
[  679.962287]  ? rcu_note_context_switch+0x730/0x730
[  679.967221]  ? security_prepare_creds+0x94/0xc0
[  679.971875]  __should_failslab+0x124/0x180
[  679.976095]  should_failslab+0x9/0x14
[  679.979877]  kmem_cache_alloc+0x2af/0x760
[  679.984017]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  679.989044]  __delayacct_tsk_init+0x20/0x80
[  679.993362]  copy_process.part.39+0x2ba8/0x7250
[  679.998038]  ? __lock_acquire+0x7fc/0x5020
[  680.002270]  ? __lock_acquire+0x7fc/0x5020
[  680.006499]  ? __lock_acquire+0x7fc/0x5020
[  680.010725]  ? __cleanup_sighand+0x70/0x70
[  680.014942]  ? debug_check_no_locks_freed+0x310/0x310
[  680.020113]  ? debug_check_no_locks_freed+0x310/0x310
[  680.025287]  ? print_usage_bug+0xc0/0xc0
[  680.029334]  ? print_usage_bug+0xc0/0xc0
[  680.033380]  ? d_splice_alias+0x7c9/0x11f0
[  680.037597]  ? lock_downgrade+0x8f0/0x8f0
[  680.041745]  ? d_instantiate_anon+0x30/0x30
[  680.046071]  ? __lock_acquire+0x7fc/0x5020
[  680.050293]  ? print_usage_bug+0xc0/0xc0
[  680.054339]  ? debug_check_no_locks_freed+0x310/0x310
[  680.059517]  ? debug_check_no_locks_freed+0x310/0x310
[  680.064703]  ? __lock_acquire+0x7fc/0x5020
[  680.068924]  ? print_usage_bug+0xc0/0xc0
[  680.072970]  ? lock_downgrade+0x8f0/0x8f0
[  680.077104]  ? debug_check_no_locks_freed+0x310/0x310
[  680.082277]  ? print_usage_bug+0xc0/0xc0
[  680.086319]  ? graph_lock+0x170/0x170
[  680.090102]  ? do_raw_spin_lock+0xc1/0x200
[  680.094319]  ? graph_lock+0x170/0x170
[  680.098103]  ? graph_lock+0x170/0x170
[  680.101907]  ? find_held_lock+0x36/0x1c0
[  680.105955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.111476]  ? _parse_integer+0x13b/0x190
[  680.115605]  ? graph_lock+0x170/0x170
[  680.119389]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  680.124922]  ? _kstrtoull+0x188/0x250
[  680.128706]  ? _parse_integer+0x190/0x190
[  680.132836]  ? graph_lock+0x170/0x170
[  680.136619]  ? lock_release+0xa30/0xa30
[  680.140585]  ? find_held_lock+0x36/0x1c0
[  680.144646]  ? lock_downgrade+0x8f0/0x8f0
[  680.148789]  ? kasan_check_read+0x11/0x20
[  680.153020]  ? rcu_is_watching+0x8c/0x150
[  680.157173]  ? pid_task+0x115/0x200
[  680.160785]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  680.165177]  ? save_stack+0xa9/0xd0
[  680.168801]  ? graph_lock+0x170/0x170
[  680.172596]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  680.178119]  ? proc_fail_nth_write+0x9e/0x210
[  680.182597]  ? proc_cwd_link+0x1d0/0x1d0
[  680.186641]  ? kasan_check_read+0x11/0x20
[  680.190783]  ? find_held_lock+0x36/0x1c0
[  680.194838]  _do_fork+0x291/0x12a0
[  680.198371]  ? fork_idle+0x1a0/0x1a0
[  680.202068]  ? __lock_is_held+0xb5/0x140
[  680.206119]  ? __sb_end_write+0xac/0xe0
[  680.210076]  ? vfs_write+0x2a8/0x560
[  680.213776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.219292]  ? ksys_write+0x1ae/0x260
[  680.223086]  ? __ia32_sys_read+0xb0/0xb0
[  680.227131]  ? syscall_slow_exit_work+0x500/0x500
[  680.231960]  __x64_sys_clone+0xbf/0x150
[  680.235917]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  680.240929]  do_syscall_64+0x1b9/0x820
[  680.244801]  ? syscall_return_slowpath+0x5e0/0x5e0
[  680.249725]  ? syscall_return_slowpath+0x31d/0x5e0
[  680.254646]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  680.260011]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.264848]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  680.270040] RIP: 0033:0x441519
[  680.273208] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  680.292383] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  680.300080] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  680.307333] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  680.314585] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  680.321849] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  680.329111] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  680.341733] FAULT_INJECTION: forcing a failure.
[  680.341733] name failslab, interval 1, probability 0, space 0, times 0
[  680.352991] CPU: 1 PID: 4744 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  680.360085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  680.369431] Call Trace:
[  680.372016]  dump_stack+0x1c9/0x2b4
[  680.375651]  ? dump_stack_print_info.cold.2+0x52/0x52
[  680.380829]  ? save_stack+0x43/0xd0
[  680.384438]  ? kasan_kmalloc+0xc4/0xe0
[  680.388308]  ? kasan_slab_alloc+0x12/0x20
[  680.392437]  ? kmem_cache_alloc+0x12e/0x760
[  680.396744]  ? copy_creds+0x7b/0x470
[  680.400458]  should_fail.cold.4+0xa/0x1a
[  680.404514]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  680.409612]  ? find_held_lock+0x36/0x1c0
[  680.413664]  ? find_held_lock+0x36/0x1c0
[  680.417716]  ? check_same_owner+0x340/0x340
[  680.422025]  ? rcu_is_watching+0x8c/0x150
[  680.426169]  ? rcu_note_context_switch+0x730/0x730
[  680.431082]  ? security_prepare_creds+0x94/0xc0
[  680.435736]  __should_failslab+0x124/0x180
[  680.439956]  should_failslab+0x9/0x14
[  680.443753]  kmem_cache_alloc+0x2af/0x760
[  680.447889]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  680.452897]  __delayacct_tsk_init+0x20/0x80
[  680.457216]  copy_process.part.39+0x2ba8/0x7250
[  680.461872]  ? __lock_acquire+0x7fc/0x5020
[  680.466092]  ? __lock_acquire+0x7fc/0x5020
[  680.470309]  ? __lock_acquire+0x7fc/0x5020
[  680.474534]  ? __cleanup_sighand+0x70/0x70
[  680.478751]  ? debug_check_no_locks_freed+0x310/0x310
[  680.483940]  ? debug_check_no_locks_freed+0x310/0x310
[  680.489112]  ? print_usage_bug+0xc0/0xc0
[  680.493175]  ? print_usage_bug+0xc0/0xc0
[  680.497221]  ? d_splice_alias+0x7c9/0x11f0
[  680.501439]  ? lock_downgrade+0x8f0/0x8f0
[  680.505569]  ? d_instantiate_anon+0x30/0x30
[  680.509875]  ? __lock_acquire+0x7fc/0x5020
[  680.514105]  ? print_usage_bug+0xc0/0xc0
[  680.518156]  ? debug_check_no_locks_freed+0x310/0x310
[  680.523339]  ? debug_check_no_locks_freed+0x310/0x310
[  680.528523]  ? __lock_acquire+0x7fc/0x5020
[  680.532747]  ? print_usage_bug+0xc0/0xc0
[  680.536800]  ? lock_downgrade+0x8f0/0x8f0
[  680.540947]  ? debug_check_no_locks_freed+0x310/0x310
[  680.546120]  ? print_usage_bug+0xc0/0xc0
[  680.550166]  ? graph_lock+0x170/0x170
[  680.553949]  ? do_raw_spin_lock+0xc1/0x200
[  680.558167]  ? graph_lock+0x170/0x170
[  680.561956]  ? graph_lock+0x170/0x170
[  680.565753]  ? find_held_lock+0x36/0x1c0
[  680.569811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.575343]  ? _parse_integer+0x13b/0x190
[  680.579476]  ? graph_lock+0x170/0x170
[  680.583265]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  680.588797]  ? _kstrtoull+0x188/0x250
[  680.592578]  ? _parse_integer+0x190/0x190
[  680.596708]  ? graph_lock+0x170/0x170
[  680.600491]  ? lock_release+0xa30/0xa30
[  680.604450]  ? find_held_lock+0x36/0x1c0
[  680.608494]  ? lock_downgrade+0x8f0/0x8f0
[  680.612646]  ? kasan_check_read+0x11/0x20
[  680.616777]  ? rcu_is_watching+0x8c/0x150
[  680.620917]  ? pid_task+0x115/0x200
[  680.624525]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  680.628924]  ? save_stack+0xa9/0xd0
[  680.632546]  ? graph_lock+0x170/0x170
[  680.636331]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  680.641864]  ? proc_fail_nth_write+0x9e/0x210
[  680.646344]  ? proc_cwd_link+0x1d0/0x1d0
[  680.650386]  ? kasan_check_read+0x11/0x20
[  680.654532]  ? find_held_lock+0x36/0x1c0
[  680.658597]  _do_fork+0x291/0x12a0
[  680.662149]  ? fork_idle+0x1a0/0x1a0
[  680.665866]  ? __lock_is_held+0xb5/0x140
[  680.669922]  ? __sb_end_write+0xac/0xe0
[  680.673876]  ? vfs_write+0x2a8/0x560
[  680.677573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.683089]  ? ksys_write+0x1ae/0x260
[  680.686871]  ? __ia32_sys_read+0xb0/0xb0
[  680.690920]  ? syscall_slow_exit_work+0x500/0x500
[  680.695762]  __x64_sys_clone+0xbf/0x150
[  680.699724]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  680.704730]  do_syscall_64+0x1b9/0x820
[  680.708602]  ? syscall_return_slowpath+0x5e0/0x5e0
[  680.713513]  ? syscall_return_slowpath+0x31d/0x5e0
[  680.718428]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  680.723783]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.728624]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  680.733795] RIP: 0033:0x441519
[  680.736962] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  680.756162] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  680.763857] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  680.771121] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  680.778391] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  680.785651] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  680.792901] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  680.805784] FAULT_INJECTION: forcing a failure.
[  680.805784] name failslab, interval 1, probability 0, space 0, times 0
[  680.817059] CPU: 1 PID: 4746 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  680.824146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  680.833490] Call Trace:
[  680.836063]  dump_stack+0x1c9/0x2b4
[  680.839675]  ? dump_stack_print_info.cold.2+0x52/0x52
[  680.844869]  ? save_stack+0x43/0xd0
[  680.848490]  ? kasan_kmalloc+0xc4/0xe0
[  680.852360]  ? kasan_slab_alloc+0x12/0x20
[  680.856488]  ? kmem_cache_alloc+0x12e/0x760
[  680.860791]  ? copy_creds+0x7b/0x470
[  680.864493]  should_fail.cold.4+0xa/0x1a
[  680.868538]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  680.873638]  ? lock_downgrade+0x8f0/0x8f0
[  680.877786]  ? find_held_lock+0x36/0x1c0
[  680.881837]  ? check_same_owner+0x340/0x340
[  680.886151]  ? rcu_note_context_switch+0x730/0x730
[  680.891069]  ? security_prepare_creds+0x94/0xc0
[  680.895727]  __should_failslab+0x124/0x180
[  680.899946]  should_failslab+0x9/0x14
[  680.903737]  kmem_cache_alloc+0x2af/0x760
[  680.907870]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  680.912874]  __delayacct_tsk_init+0x20/0x80
[  680.917181]  copy_process.part.39+0x2ba8/0x7250
[  680.921835]  ? __lock_acquire+0x7fc/0x5020
[  680.926058]  ? __lock_acquire+0x7fc/0x5020
[  680.930284]  ? __lock_acquire+0x7fc/0x5020
[  680.934514]  ? __cleanup_sighand+0x70/0x70
[  680.938741]  ? debug_check_no_locks_freed+0x310/0x310
[  680.943913]  ? debug_check_no_locks_freed+0x310/0x310
[  680.949086]  ? print_usage_bug+0xc0/0xc0
[  680.953147]  ? print_usage_bug+0xc0/0xc0
[  680.957206]  ? d_splice_alias+0x7c9/0x11f0
[  680.961426]  ? lock_downgrade+0x8f0/0x8f0
[  680.965581]  ? d_instantiate_anon+0x30/0x30
[  680.969891]  ? __lock_acquire+0x7fc/0x5020
[  680.974110]  ? print_usage_bug+0xc0/0xc0
[  680.978170]  ? debug_check_no_locks_freed+0x310/0x310
[  680.983354]  ? debug_check_no_locks_freed+0x310/0x310
[  680.988536]  ? __lock_acquire+0x7fc/0x5020
[  680.992763]  ? print_usage_bug+0xc0/0xc0
[  680.996817]  ? lock_downgrade+0x8f0/0x8f0
[  681.000954]  ? debug_check_no_locks_freed+0x310/0x310
[  681.006146]  ? print_usage_bug+0xc0/0xc0
[  681.010190]  ? graph_lock+0x170/0x170
[  681.013973]  ? do_raw_spin_lock+0xc1/0x200
[  681.018189]  ? graph_lock+0x170/0x170
[  681.021973]  ? graph_lock+0x170/0x170
[  681.025759]  ? find_held_lock+0x36/0x1c0
[  681.029804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.035324]  ? _parse_integer+0x13b/0x190
[  681.039452]  ? graph_lock+0x170/0x170
[  681.043238]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.048758]  ? _kstrtoull+0x188/0x250
[  681.052546]  ? _parse_integer+0x190/0x190
[  681.056677]  ? graph_lock+0x170/0x170
[  681.060472]  ? lock_release+0xa30/0xa30
[  681.064440]  ? find_held_lock+0x36/0x1c0
[  681.068499]  ? lock_downgrade+0x8f0/0x8f0
[  681.072641]  ? kasan_check_read+0x11/0x20
[  681.076783]  ? rcu_is_watching+0x8c/0x150
[  681.080914]  ? pid_task+0x115/0x200
[  681.084521]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  681.088911]  ? save_stack+0xa9/0xd0
[  681.092522]  ? graph_lock+0x170/0x170
[  681.096321]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.101848]  ? proc_fail_nth_write+0x9e/0x210
[  681.106323]  ? proc_cwd_link+0x1d0/0x1d0
[  681.110370]  ? kasan_check_read+0x11/0x20
[  681.114501]  ? find_held_lock+0x36/0x1c0
[  681.118548]  _do_fork+0x291/0x12a0
[  681.122074]  ? fork_idle+0x1a0/0x1a0
[  681.125779]  ? __lock_is_held+0xb5/0x140
[  681.129834]  ? __sb_end_write+0xac/0xe0
[  681.133792]  ? vfs_write+0x2a8/0x560
[  681.137494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.143018]  ? ksys_write+0x1ae/0x260
[  681.146812]  ? __ia32_sys_read+0xb0/0xb0
[  681.150867]  ? syscall_slow_exit_work+0x500/0x500
[  681.155697]  __x64_sys_clone+0xbf/0x150
[  681.159657]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  681.164658]  do_syscall_64+0x1b9/0x820
[  681.168540]  ? syscall_return_slowpath+0x5e0/0x5e0
[  681.173463]  ? syscall_return_slowpath+0x31d/0x5e0
[  681.178380]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  681.183739]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  681.188583]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  681.193755] RIP: 0033:0x441519
[  681.197710] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  681.216884] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  681.224577] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  681.231832] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  681.239086] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  681.246362] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  681.253618] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  681.265971] FAULT_INJECTION: forcing a failure.
[  681.265971] name failslab, interval 1, probability 0, space 0, times 0
[  681.277310] CPU: 0 PID: 4748 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  681.284407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  681.293750] Call Trace:
[  681.296339]  dump_stack+0x1c9/0x2b4
[  681.299958]  ? dump_stack_print_info.cold.2+0x52/0x52
[  681.305139]  ? find_held_lock+0x36/0x1c0
[  681.309190]  should_fail.cold.4+0xa/0x1a
[  681.313237]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.318329]  ? find_held_lock+0x36/0x1c0
[  681.322412]  ? check_same_owner+0x340/0x340
[  681.326726]  ? rcu_note_context_switch+0x730/0x730
[  681.331657]  __should_failslab+0x124/0x180
[  681.335891]  should_failslab+0x9/0x14
[  681.339679]  kmem_cache_alloc+0x2af/0x760
[  681.343810]  ? __mutex_init+0x1f7/0x290
[  681.347774]  dup_fd+0x11c/0xf60
[  681.351041]  ? kasan_check_read+0x11/0x20
[  681.355175]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.360702]  ? audit_alloc+0xf0/0x930
[  681.364504]  ? ksys_dup3+0x690/0x690
[  681.368203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.373722]  ? perf_event_init_task+0x1f8/0x870
[  681.378373]  ? sched_fork+0x468/0xb40
[  681.382158]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.387696]  ? copy_semundo+0xca/0x360
[  681.391579]  ? __ia32_sys_semop+0xb0/0xb0
[  681.395731]  ? __raw_spin_lock_init+0x1c/0x100
[  681.400310]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  681.405310]  ? __lockdep_init_map+0x105/0x590
[  681.409793]  copy_process.part.39+0x1e40/0x7250
[  681.414461]  ? __lock_acquire+0x7fc/0x5020
[  681.418681]  ? __lock_acquire+0x7fc/0x5020
[  681.422910]  ? __lock_acquire+0x7fc/0x5020
[  681.427134]  ? __cleanup_sighand+0x70/0x70
[  681.431353]  ? debug_check_no_locks_freed+0x310/0x310
[  681.436536]  ? print_usage_bug+0xc0/0xc0
[  681.440601]  ? print_usage_bug+0xc0/0xc0
[  681.444649]  ? d_splice_alias+0x7c9/0x11f0
[  681.448865]  ? lock_downgrade+0x8f0/0x8f0
[  681.453013]  ? d_instantiate_anon+0x30/0x30
[  681.457333]  ? __lock_acquire+0x7fc/0x5020
[  681.461555]  ? print_usage_bug+0xc0/0xc0
[  681.465605]  ? debug_check_no_locks_freed+0x310/0x310
[  681.470781]  ? debug_check_no_locks_freed+0x310/0x310
[  681.475953]  ? __lock_acquire+0x7fc/0x5020
[  681.480183]  ? print_usage_bug+0xc0/0xc0
[  681.484225]  ? lock_downgrade+0x8f0/0x8f0
[  681.488373]  ? print_usage_bug+0xc0/0xc0
[  681.492422]  ? graph_lock+0x170/0x170
[  681.496214]  ? do_raw_spin_lock+0xc1/0x200
[  681.500445]  ? graph_lock+0x170/0x170
[  681.504229]  ? find_held_lock+0x36/0x1c0
[  681.508276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.513800]  ? _parse_integer+0x13b/0x190
[  681.517931]  ? graph_lock+0x170/0x170
[  681.521725]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.527243]  ? _kstrtoull+0x188/0x250
[  681.531030]  ? _parse_integer+0x190/0x190
[  681.535173]  ? graph_lock+0x170/0x170
[  681.538969]  ? lock_release+0xa30/0xa30
[  681.542933]  ? find_held_lock+0x36/0x1c0
[  681.546992]  ? lock_downgrade+0x8f0/0x8f0
[  681.551143]  ? kasan_check_read+0x11/0x20
[  681.555272]  ? rcu_is_watching+0x8c/0x150
[  681.559403]  ? pid_task+0x115/0x200
[  681.563039]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  681.567436]  ? save_stack+0xa9/0xd0
[  681.571056]  ? graph_lock+0x170/0x170
[  681.574842]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.580373]  ? proc_fail_nth_write+0x9e/0x210
[  681.584849]  ? proc_cwd_link+0x1d0/0x1d0
[  681.588898]  ? kasan_check_read+0x11/0x20
[  681.593043]  ? find_held_lock+0x36/0x1c0
[  681.597099]  _do_fork+0x291/0x12a0
[  681.600633]  ? fork_idle+0x1a0/0x1a0
[  681.604342]  ? __lock_is_held+0xb5/0x140
[  681.608408]  ? __sb_end_write+0xac/0xe0
[  681.612385]  ? vfs_write+0x2a8/0x560
[  681.616084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.621600]  ? ksys_write+0x1ae/0x260
[  681.625412]  ? __ia32_sys_read+0xb0/0xb0
[  681.629470]  ? syscall_slow_exit_work+0x500/0x500
[  681.634298]  __x64_sys_clone+0xbf/0x150
[  681.638257]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  681.643436]  do_syscall_64+0x1b9/0x820
[  681.647311]  ? syscall_return_slowpath+0x5e0/0x5e0
[  681.652229]  ? syscall_return_slowpath+0x31d/0x5e0
[  681.657149]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  681.662497]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  681.667326]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  681.672495] RIP: 0033:0x441519
[  681.675660] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  681.694847] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  681.702545] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  681.709809] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  681.717060] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  681.724316] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  681.731569] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  681.743259] FAULT_INJECTION: forcing a failure.
[  681.743259] name failslab, interval 1, probability 0, space 0, times 0
[  681.754531] CPU: 0 PID: 4749 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  681.761623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  681.770968] Call Trace:
[  681.773563]  dump_stack+0x1c9/0x2b4
[  681.777181]  ? dump_stack_print_info.cold.2+0x52/0x52
[  681.782363]  ? find_held_lock+0x36/0x1c0
[  681.786419]  should_fail.cold.4+0xa/0x1a
[  681.790465]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.795562]  ? find_held_lock+0x36/0x1c0
[  681.799614]  ? check_same_owner+0x340/0x340
[  681.803930]  ? rcu_note_context_switch+0x730/0x730
[  681.808844]  __should_failslab+0x124/0x180
[  681.813074]  should_failslab+0x9/0x14
[  681.816855]  kmem_cache_alloc+0x2af/0x760
[  681.820986]  ? __mutex_init+0x1f7/0x290
[  681.824948]  dup_fd+0x11c/0xf60
[  681.828209]  ? kasan_check_read+0x11/0x20
[  681.832339]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  681.837864]  ? audit_alloc+0xf0/0x930
[  681.841648]  ? ksys_dup3+0x690/0x690
[  681.845346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.850862]  ? perf_event_init_task+0x1f8/0x870
[  681.855514]  ? sched_fork+0x468/0xb40
[  681.859309]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.864831]  ? copy_semundo+0xca/0x360
[  681.868697]  ? __ia32_sys_semop+0xb0/0xb0
[  681.872828]  ? __raw_spin_lock_init+0x1c/0x100
[  681.877391]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  681.882390]  ? __lockdep_init_map+0x105/0x590
[  681.886870]  copy_process.part.39+0x1e40/0x7250
[  681.891523]  ? __lock_acquire+0x7fc/0x5020
[  681.895745]  ? __lock_acquire+0x7fc/0x5020
[  681.899959]  ? __lock_acquire+0x7fc/0x5020
[  681.904191]  ? __cleanup_sighand+0x70/0x70
[  681.908422]  ? debug_check_no_locks_freed+0x310/0x310
[  681.913603]  ? print_usage_bug+0xc0/0xc0
[  681.917675]  ? print_usage_bug+0xc0/0xc0
[  681.921718]  ? d_splice_alias+0x7c9/0x11f0
[  681.925932]  ? lock_downgrade+0x8f0/0x8f0
[  681.930073]  ? d_instantiate_anon+0x30/0x30
[  681.934379]  ? __lock_acquire+0x7fc/0x5020
[  681.938596]  ? print_usage_bug+0xc0/0xc0
[  681.942653]  ? debug_check_no_locks_freed+0x310/0x310
[  681.947827]  ? debug_check_no_locks_freed+0x310/0x310
[  681.953001]  ? __lock_acquire+0x7fc/0x5020
[  681.957224]  ? print_usage_bug+0xc0/0xc0
[  681.961264]  ? lock_downgrade+0x8f0/0x8f0
[  681.965401]  ? print_usage_bug+0xc0/0xc0
[  681.969444]  ? graph_lock+0x170/0x170
[  681.973235]  ? do_raw_spin_lock+0xc1/0x200
[  681.977455]  ? graph_lock+0x170/0x170
[  681.981263]  ? find_held_lock+0x36/0x1c0
[  681.985309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.990828]  ? _parse_integer+0x13b/0x190
[  681.994959]  ? graph_lock+0x170/0x170
[  681.998753]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.004273]  ? _kstrtoull+0x188/0x250
[  682.008068]  ? _parse_integer+0x190/0x190
[  682.012210]  ? graph_lock+0x170/0x170
[  682.016003]  ? lock_release+0xa30/0xa30
[  682.019966]  ? find_held_lock+0x36/0x1c0
[  682.024035]  ? lock_downgrade+0x8f0/0x8f0
[  682.028167]  ? kasan_check_read+0x11/0x20
[  682.032300]  ? rcu_is_watching+0x8c/0x150
[  682.036426]  ? pid_task+0x115/0x200
[  682.040053]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  682.044459]  ? save_stack+0xa9/0xd0
[  682.048078]  ? graph_lock+0x170/0x170
[  682.051868]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.057389]  ? proc_fail_nth_write+0x9e/0x210
[  682.061864]  ? proc_cwd_link+0x1d0/0x1d0
[  682.065920]  ? kasan_check_read+0x11/0x20
[  682.070063]  ? find_held_lock+0x36/0x1c0
[  682.074133]  _do_fork+0x291/0x12a0
[  682.077667]  ? fork_idle+0x1a0/0x1a0
[  682.081372]  ? __lock_is_held+0xb5/0x140
[  682.085423]  ? __sb_end_write+0xac/0xe0
[  682.089384]  ? vfs_write+0x2a8/0x560
[  682.093090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.098607]  ? ksys_write+0x1ae/0x260
[  682.102398]  ? __ia32_sys_read+0xb0/0xb0
[  682.106450]  ? syscall_slow_exit_work+0x500/0x500
[  682.111277]  __x64_sys_clone+0xbf/0x150
[  682.115238]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  682.120245]  do_syscall_64+0x1b9/0x820
[  682.124125]  ? syscall_return_slowpath+0x5e0/0x5e0
[  682.129048]  ? syscall_return_slowpath+0x31d/0x5e0
[  682.133971]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  682.139342]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  682.144171]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  682.149344] RIP: 0033:0x441519
[  682.152513] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  682.171701] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  682.179411] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  682.186662] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  682.193915] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  682.201164] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  682.208427] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  682.220700] FAULT_INJECTION: forcing a failure.
[  682.220700] name failslab, interval 1, probability 0, space 0, times 0
[  682.231961] CPU: 0 PID: 4750 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  682.239046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  682.248389] Call Trace:
[  682.250965]  dump_stack+0x1c9/0x2b4
[  682.254586]  ? dump_stack_print_info.cold.2+0x52/0x52
[  682.259759]  ? find_held_lock+0x36/0x1c0
[  682.263816]  should_fail.cold.4+0xa/0x1a
[  682.267862]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  682.272963]  ? find_held_lock+0x36/0x1c0
[  682.277023]  ? check_same_owner+0x340/0x340
[  682.281333]  ? rcu_note_context_switch+0x730/0x730
[  682.286250]  __should_failslab+0x124/0x180
[  682.290478]  should_failslab+0x9/0x14
[  682.294262]  kmem_cache_alloc+0x2af/0x760
[  682.298392]  ? __mutex_init+0x1f7/0x290
[  682.302352]  dup_fd+0x11c/0xf60
[  682.305613]  ? kasan_check_read+0x11/0x20
[  682.309754]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.315274]  ? audit_alloc+0xf0/0x930
[  682.319084]  ? ksys_dup3+0x690/0x690
[  682.322787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.328307]  ? perf_event_init_task+0x1f8/0x870
[  682.332959]  ? sched_fork+0x468/0xb40
[  682.336742]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.342273]  ? copy_semundo+0xca/0x360
[  682.346143]  ? __ia32_sys_semop+0xb0/0xb0
[  682.350273]  ? __raw_spin_lock_init+0x1c/0x100
[  682.354840]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  682.359844]  ? __lockdep_init_map+0x105/0x590
[  682.364328]  copy_process.part.39+0x1e40/0x7250
[  682.368999]  ? __lock_acquire+0x7fc/0x5020
[  682.373226]  ? __lock_acquire+0x7fc/0x5020
[  682.377455]  ? __lock_acquire+0x7fc/0x5020
[  682.381693]  ? __cleanup_sighand+0x70/0x70
[  682.385909]  ? debug_check_no_locks_freed+0x310/0x310
[  682.391079]  ? print_usage_bug+0xc0/0xc0
[  682.395122]  ? print_usage_bug+0xc0/0xc0
[  682.399166]  ? d_splice_alias+0x7c9/0x11f0
[  682.403394]  ? lock_downgrade+0x8f0/0x8f0
[  682.407532]  ? d_instantiate_anon+0x30/0x30
[  682.411849]  ? __lock_acquire+0x7fc/0x5020
[  682.416067]  ? print_usage_bug+0xc0/0xc0
[  682.420114]  ? debug_check_no_locks_freed+0x310/0x310
[  682.425287]  ? debug_check_no_locks_freed+0x310/0x310
[  682.430471]  ? __lock_acquire+0x7fc/0x5020
[  682.434696]  ? print_usage_bug+0xc0/0xc0
[  682.438737]  ? lock_downgrade+0x8f0/0x8f0
[  682.442872]  ? print_usage_bug+0xc0/0xc0
[  682.446925]  ? graph_lock+0x170/0x170
[  682.450722]  ? do_raw_spin_lock+0xc1/0x200
[  682.454942]  ? graph_lock+0x170/0x170
[  682.458727]  ? find_held_lock+0x36/0x1c0
[  682.462770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.468290]  ? _parse_integer+0x13b/0x190
[  682.472417]  ? graph_lock+0x170/0x170
[  682.476199]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.481729]  ? _kstrtoull+0x188/0x250
[  682.485514]  ? _parse_integer+0x190/0x190
[  682.489644]  ? graph_lock+0x170/0x170
[  682.493431]  ? lock_release+0xa30/0xa30
[  682.497389]  ? find_held_lock+0x36/0x1c0
[  682.501437]  ? lock_downgrade+0x8f0/0x8f0
[  682.505572]  ? kasan_check_read+0x11/0x20
[  682.509711]  ? rcu_is_watching+0x8c/0x150
[  682.513842]  ? pid_task+0x115/0x200
[  682.517461]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  682.521883]  ? save_stack+0xa9/0xd0
[  682.525512]  ? graph_lock+0x170/0x170
[  682.529298]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.534819]  ? proc_fail_nth_write+0x9e/0x210
[  682.539313]  ? proc_cwd_link+0x1d0/0x1d0
[  682.543359]  ? kasan_check_read+0x11/0x20
[  682.547515]  ? find_held_lock+0x36/0x1c0
[  682.551567]  _do_fork+0x291/0x12a0
[  682.555106]  ? fork_idle+0x1a0/0x1a0
[  682.558805]  ? __lock_is_held+0xb5/0x140
[  682.562880]  ? __sb_end_write+0xac/0xe0
[  682.566845]  ? vfs_write+0x2a8/0x560
[  682.570560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.589803]  ? ksys_write+0x1ae/0x260
[  682.593584]  ? __ia32_sys_read+0xb0/0xb0
[  682.597633]  ? syscall_slow_exit_work+0x500/0x500
[  682.602468]  __x64_sys_clone+0xbf/0x150
[  682.606440]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  682.611437]  do_syscall_64+0x1b9/0x820
[  682.615308]  ? syscall_return_slowpath+0x5e0/0x5e0
[  682.620229]  ? syscall_return_slowpath+0x31d/0x5e0
[  682.625142]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  682.630489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  682.635315]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  682.640501] RIP: 0033:0x441519
[  682.643670] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  682.662838] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  682.670524] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  682.677780] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  682.685038] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  682.692305] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  682.699574] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  682.711443] FAULT_INJECTION: forcing a failure.
[  682.711443] name failslab, interval 1, probability 0, space 0, times 0
[  682.722692] CPU: 0 PID: 4751 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  682.729771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  682.739102] Call Trace:
[  682.741674]  dump_stack+0x1c9/0x2b4
[  682.745281]  ? dump_stack_print_info.cold.2+0x52/0x52
[  682.750455]  ? find_held_lock+0x36/0x1c0
[  682.754507]  should_fail.cold.4+0xa/0x1a
[  682.758549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  682.763638]  ? find_held_lock+0x36/0x1c0
[  682.767688]  ? check_same_owner+0x340/0x340
[  682.771991]  ? rcu_note_context_switch+0x730/0x730
[  682.776920]  __should_failslab+0x124/0x180
[  682.781142]  should_failslab+0x9/0x14
[  682.784925]  kmem_cache_alloc+0x2af/0x760
[  682.789056]  ? __mutex_init+0x1f7/0x290
[  682.793037]  dup_fd+0x11c/0xf60
[  682.796316]  ? kasan_check_read+0x11/0x20
[  682.800451]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.805980]  ? audit_alloc+0xf0/0x930
[  682.809761]  ? ksys_dup3+0x690/0x690
[  682.813473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.818997]  ? perf_event_init_task+0x1f8/0x870
[  682.823651]  ? sched_fork+0x468/0xb40
[  682.827434]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.832950]  ? copy_semundo+0xca/0x360
[  682.836820]  ? __ia32_sys_semop+0xb0/0xb0
[  682.840947]  ? __raw_spin_lock_init+0x1c/0x100
[  682.845519]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  682.850516]  ? __lockdep_init_map+0x105/0x590
[  682.854993]  copy_process.part.39+0x1e40/0x7250
[  682.859646]  ? __lock_acquire+0x7fc/0x5020
[  682.863861]  ? __lock_acquire+0x7fc/0x5020
[  682.868083]  ? __lock_acquire+0x7fc/0x5020
[  682.872302]  ? __cleanup_sighand+0x70/0x70
[  682.876515]  ? debug_check_no_locks_freed+0x310/0x310
[  682.881685]  ? print_usage_bug+0xc0/0xc0
[  682.885729]  ? print_usage_bug+0xc0/0xc0
[  682.889769]  ? d_splice_alias+0x7c9/0x11f0
[  682.893983]  ? lock_downgrade+0x8f0/0x8f0
[  682.898124]  ? d_instantiate_anon+0x30/0x30
[  682.902441]  ? __lock_acquire+0x7fc/0x5020
[  682.906682]  ? print_usage_bug+0xc0/0xc0
[  682.910734]  ? debug_check_no_locks_freed+0x310/0x310
[  682.915911]  ? debug_check_no_locks_freed+0x310/0x310
[  682.921082]  ? __lock_acquire+0x7fc/0x5020
[  682.925295]  ? print_usage_bug+0xc0/0xc0
[  682.929336]  ? lock_downgrade+0x8f0/0x8f0
[  682.933486]  ? print_usage_bug+0xc0/0xc0
[  682.937529]  ? graph_lock+0x170/0x170
[  682.941311]  ? do_raw_spin_lock+0xc1/0x200
[  682.945537]  ? graph_lock+0x170/0x170
[  682.949323]  ? find_held_lock+0x36/0x1c0
[  682.953369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.958896]  ? _parse_integer+0x13b/0x190
[  682.963037]  ? graph_lock+0x170/0x170
[  682.966824]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  682.972344]  ? _kstrtoull+0x188/0x250
[  682.976127]  ? _parse_integer+0x190/0x190
[  682.980260]  ? graph_lock+0x170/0x170
[  682.984051]  ? lock_release+0xa30/0xa30
[  682.988017]  ? find_held_lock+0x36/0x1c0
[  682.992069]  ? lock_downgrade+0x8f0/0x8f0
[  682.996204]  ? kasan_check_read+0x11/0x20
[  683.000331]  ? rcu_is_watching+0x8c/0x150
[  683.004464]  ? pid_task+0x115/0x200
[  683.008070]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  683.012473]  ? save_stack+0xa9/0xd0
[  683.016083]  ? graph_lock+0x170/0x170
[  683.019867]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  683.025383]  ? proc_fail_nth_write+0x9e/0x210
[  683.029868]  ? proc_cwd_link+0x1d0/0x1d0
[  683.033918]  ? kasan_check_read+0x11/0x20
[  683.038060]  ? find_held_lock+0x36/0x1c0
[  683.042106]  _do_fork+0x291/0x12a0
[  683.045628]  ? fork_idle+0x1a0/0x1a0
[  683.049322]  ? __lock_is_held+0xb5/0x140
[  683.053372]  ? __sb_end_write+0xac/0xe0
[  683.057325]  ? vfs_write+0x2a8/0x560
[  683.061033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.066583]  ? ksys_write+0x1ae/0x260
[  683.070367]  ? __ia32_sys_read+0xb0/0xb0
[  683.074414]  ? syscall_slow_exit_work+0x500/0x500
[  683.079248]  __x64_sys_clone+0xbf/0x150
[  683.083216]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  683.088227]  do_syscall_64+0x1b9/0x820
[  683.092105]  ? syscall_return_slowpath+0x5e0/0x5e0
[  683.097025]  ? syscall_return_slowpath+0x31d/0x5e0
[  683.101945]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  683.107291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  683.112125]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  683.117296] RIP: 0033:0x441519
[  683.120460] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  683.139637] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  683.147330] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  683.154593] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  683.161844] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  683.169103] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  683.176350] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  683.188163] FAULT_INJECTION: forcing a failure.
[  683.188163] name failslab, interval 1, probability 0, space 0, times 0
[  683.199401] CPU: 1 PID: 4752 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  683.207066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  683.216400] Call Trace:
[  683.218984]  dump_stack+0x1c9/0x2b4
[  683.222599]  ? dump_stack_print_info.cold.2+0x52/0x52
[  683.227797]  ? save_stack+0x43/0xd0
[  683.231405]  ? kasan_kmalloc+0xc4/0xe0
[  683.235270]  ? kasan_slab_alloc+0x12/0x20
[  683.239412]  ? kmem_cache_alloc+0x12e/0x760
[  683.243714]  ? copy_creds+0x7b/0x470
[  683.247412]  should_fail.cold.4+0xa/0x1a
[  683.251455]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  683.256541]  ? find_held_lock+0x36/0x1c0
[  683.260591]  ? find_held_lock+0x36/0x1c0
[  683.264641]  ? check_same_owner+0x340/0x340
[  683.268945]  ? rcu_is_watching+0x8c/0x150
[  683.273073]  ? rcu_note_context_switch+0x730/0x730
[  683.277998]  ? security_prepare_creds+0x94/0xc0
[  683.282655]  __should_failslab+0x124/0x180
[  683.286871]  should_failslab+0x9/0x14
[  683.290652]  kmem_cache_alloc+0x2af/0x760
[  683.294780]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  683.299786]  __delayacct_tsk_init+0x20/0x80
[  683.304179]  copy_process.part.39+0x2ba8/0x7250
[  683.308830]  ? __lock_acquire+0x7fc/0x5020
[  683.313057]  ? __lock_acquire+0x7fc/0x5020
[  683.317273]  ? __lock_acquire+0x7fc/0x5020
[  683.321521]  ? __cleanup_sighand+0x70/0x70
[  683.325737]  ? debug_check_no_locks_freed+0x310/0x310
[  683.330917]  ? debug_check_no_locks_freed+0x310/0x310
[  683.336098]  ? print_usage_bug+0xc0/0xc0
[  683.340144]  ? print_usage_bug+0xc0/0xc0
[  683.344187]  ? d_splice_alias+0x7c9/0x11f0
[  683.348405]  ? lock_downgrade+0x8f0/0x8f0
[  683.352535]  ? d_instantiate_anon+0x30/0x30
[  683.356841]  ? __lock_acquire+0x7fc/0x5020
[  683.361061]  ? print_usage_bug+0xc0/0xc0
[  683.365107]  ? debug_check_no_locks_freed+0x310/0x310
[  683.370288]  ? debug_check_no_locks_freed+0x310/0x310
[  683.375471]  ? __lock_acquire+0x7fc/0x5020
[  683.379689]  ? print_usage_bug+0xc0/0xc0
[  683.383734]  ? lock_downgrade+0x8f0/0x8f0
[  683.387868]  ? debug_check_no_locks_freed+0x310/0x310
[  683.393047]  ? print_usage_bug+0xc0/0xc0
[  683.397090]  ? graph_lock+0x170/0x170
[  683.400871]  ? do_raw_spin_lock+0xc1/0x200
[  683.405088]  ? graph_lock+0x170/0x170
[  683.408873]  ? graph_lock+0x170/0x170
[  683.412679]  ? find_held_lock+0x36/0x1c0
[  683.416739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.422264]  ? _parse_integer+0x13b/0x190
[  683.426396]  ? graph_lock+0x170/0x170
[  683.430176]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  683.435692]  ? _kstrtoull+0x188/0x250
[  683.439484]  ? _parse_integer+0x190/0x190
[  683.443617]  ? graph_lock+0x170/0x170
[  683.447423]  ? lock_release+0xa30/0xa30
[  683.451380]  ? find_held_lock+0x36/0x1c0
[  683.455426]  ? lock_downgrade+0x8f0/0x8f0
[  683.459562]  ? kasan_check_read+0x11/0x20
[  683.463698]  ? rcu_is_watching+0x8c/0x150
[  683.467828]  ? pid_task+0x115/0x200
[  683.471453]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  683.475845]  ? save_stack+0xa9/0xd0
[  683.479475]  ? graph_lock+0x170/0x170
[  683.483257]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  683.488783]  ? proc_fail_nth_write+0x9e/0x210
[  683.493270]  ? proc_cwd_link+0x1d0/0x1d0
[  683.497313]  ? kasan_check_read+0x11/0x20
[  683.501447]  ? find_held_lock+0x36/0x1c0
[  683.505502]  _do_fork+0x291/0x12a0
[  683.509112]  ? fork_idle+0x1a0/0x1a0
[  683.512805]  ? __lock_is_held+0xb5/0x140
[  683.516853]  ? __sb_end_write+0xac/0xe0
[  683.520808]  ? vfs_write+0x2a8/0x560
[  683.524506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.530032]  ? ksys_write+0x1ae/0x260
[  683.533827]  ? __ia32_sys_read+0xb0/0xb0
[  683.537874]  ? syscall_slow_exit_work+0x500/0x500
[  683.542700]  __x64_sys_clone+0xbf/0x150
[  683.546656]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  683.551663]  do_syscall_64+0x1b9/0x820
[  683.555541]  ? syscall_return_slowpath+0x5e0/0x5e0
[  683.560451]  ? syscall_return_slowpath+0x31d/0x5e0
[  683.565365]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  683.570711]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  683.575538]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  683.580711] RIP: 0033:0x441519
[  683.583877] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  683.603109] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  683.610800] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  683.618053] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  683.625302] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  683.632551] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  683.639799] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  683.653468] FAULT_INJECTION: forcing a failure.
[  683.653468] name failslab, interval 1, probability 0, space 0, times 0
[  683.664687] CPU: 1 PID: 4754 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  683.671765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  683.681094] Call Trace:
[  683.683671]  dump_stack+0x1c9/0x2b4
[  683.687279]  ? dump_stack_print_info.cold.2+0x52/0x52
[  683.692451]  ? save_stack+0x43/0xd0
[  683.696066]  ? kasan_kmalloc+0xc4/0xe0
[  683.699940]  ? kasan_slab_alloc+0x12/0x20
[  683.704068]  ? kmem_cache_alloc+0x12e/0x760
[  683.708369]  ? copy_creds+0x7b/0x470
[  683.712073]  should_fail.cold.4+0xa/0x1a
[  683.716117]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  683.721202]  ? find_held_lock+0x36/0x1c0
[  683.725251]  ? find_held_lock+0x36/0x1c0
[  683.729305]  ? check_same_owner+0x340/0x340
[  683.733606]  ? rcu_is_watching+0x8c/0x150
[  683.737736]  ? rcu_note_context_switch+0x730/0x730
[  683.742648]  ? security_prepare_creds+0x94/0xc0
[  683.747303]  __should_failslab+0x124/0x180
[  683.751524]  should_failslab+0x9/0x14
[  683.755307]  kmem_cache_alloc+0x2af/0x760
[  683.759438]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  683.764439]  __delayacct_tsk_init+0x20/0x80
[  683.768744]  copy_process.part.39+0x2ba8/0x7250
[  683.773394]  ? __lock_acquire+0x7fc/0x5020
[  683.777612]  ? __lock_acquire+0x7fc/0x5020
[  683.781828]  ? __lock_acquire+0x7fc/0x5020
[  683.786063]  ? __cleanup_sighand+0x70/0x70
[  683.790287]  ? debug_check_no_locks_freed+0x310/0x310
[  683.795456]  ? debug_check_no_locks_freed+0x310/0x310
[  683.800626]  ? print_usage_bug+0xc0/0xc0
[  683.804672]  ? print_usage_bug+0xc0/0xc0
[  683.808716]  ? d_splice_alias+0x7c9/0x11f0
[  683.812929]  ? lock_downgrade+0x8f0/0x8f0
[  683.817060]  ? d_instantiate_anon+0x30/0x30
[  683.821364]  ? __lock_acquire+0x7fc/0x5020
[  683.825593]  ? print_usage_bug+0xc0/0xc0
[  683.829639]  ? debug_check_no_locks_freed+0x310/0x310
[  683.834812]  ? debug_check_no_locks_freed+0x310/0x310
[  683.839989]  ? __lock_acquire+0x7fc/0x5020
[  683.844212]  ? print_usage_bug+0xc0/0xc0
[  683.848255]  ? lock_downgrade+0x8f0/0x8f0
[  683.852390]  ? debug_check_no_locks_freed+0x310/0x310
[  683.857561]  ? print_usage_bug+0xc0/0xc0
[  683.861601]  ? graph_lock+0x170/0x170
[  683.865382]  ? do_raw_spin_lock+0xc1/0x200
[  683.869596]  ? graph_lock+0x170/0x170
[  683.873378]  ? graph_lock+0x170/0x170
[  683.877164]  ? find_held_lock+0x36/0x1c0
[  683.881204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.886723]  ? _parse_integer+0x13b/0x190
[  683.890853]  ? graph_lock+0x170/0x170
[  683.894635]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  683.900153]  ? _kstrtoull+0x188/0x250
[  683.903930]  ? _parse_integer+0x190/0x190
[  683.908057]  ? graph_lock+0x170/0x170
[  683.911847]  ? lock_release+0xa30/0xa30
[  683.915820]  ? find_held_lock+0x36/0x1c0
[  683.919866]  ? lock_downgrade+0x8f0/0x8f0
[  683.923999]  ? kasan_check_read+0x11/0x20
[  683.928130]  ? rcu_is_watching+0x8c/0x150
[  683.932255]  ? pid_task+0x115/0x200
[  683.935866]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  683.940263]  ? save_stack+0xa9/0xd0
[  683.943885]  ? graph_lock+0x170/0x170
[  683.947669]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  683.953198]  ? proc_fail_nth_write+0x9e/0x210
[  683.957675]  ? proc_cwd_link+0x1d0/0x1d0
[  683.961717]  ? kasan_check_read+0x11/0x20
[  683.965857]  ? find_held_lock+0x36/0x1c0
[  683.969908]  _do_fork+0x291/0x12a0
[  683.973436]  ? fork_idle+0x1a0/0x1a0
[  683.977138]  ? __lock_is_held+0xb5/0x140
[  683.981187]  ? __sb_end_write+0xac/0xe0
[  683.985141]  ? vfs_write+0x2a8/0x560
[  683.988843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.994363]  ? ksys_write+0x1ae/0x260
[  683.998154]  ? __ia32_sys_read+0xb0/0xb0
[  684.002202]  ? syscall_slow_exit_work+0x500/0x500
[  684.007037]  __x64_sys_clone+0xbf/0x150
[  684.010997]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  684.016001]  do_syscall_64+0x1b9/0x820
[  684.019882]  ? syscall_return_slowpath+0x5e0/0x5e0
[  684.024791]  ? syscall_return_slowpath+0x31d/0x5e0
[  684.029705]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  684.035050]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  684.039887]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  684.045056] RIP: 0033:0x441519
executing program
[  684.048220] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  684.067389] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  684.075080] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  684.082327] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  684.089576] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  684.096825] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  684.104086] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  684.115861] FAULT_INJECTION: forcing a failure.
[  684.115861] name failslab, interval 1, probability 0, space 0, times 0
[  684.127108] CPU: 1 PID: 4756 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  684.134193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  684.143527] Call Trace:
[  684.146100]  dump_stack+0x1c9/0x2b4
[  684.149708]  ? dump_stack_print_info.cold.2+0x52/0x52
[  684.154880]  ? save_stack+0x43/0xd0
[  684.158487]  ? kasan_kmalloc+0xc4/0xe0
[  684.162355]  ? kasan_slab_alloc+0x12/0x20
[  684.166480]  ? kmem_cache_alloc+0x12e/0x760
[  684.170782]  ? copy_creds+0x7b/0x470
[  684.174484]  should_fail.cold.4+0xa/0x1a
[  684.178526]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  684.183612]  ? find_held_lock+0x36/0x1c0
[  684.187660]  ? find_held_lock+0x36/0x1c0
[  684.191710]  ? check_same_owner+0x340/0x340
[  684.196015]  ? rcu_is_watching+0x8c/0x150
[  684.200153]  ? rcu_note_context_switch+0x730/0x730
[  684.205063]  ? security_prepare_creds+0x94/0xc0
[  684.209718]  __should_failslab+0x124/0x180
[  684.213935]  should_failslab+0x9/0x14
[  684.217716]  kmem_cache_alloc+0x2af/0x760
[  684.221852]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  684.226868]  __delayacct_tsk_init+0x20/0x80
[  684.231171]  copy_process.part.39+0x2ba8/0x7250
[  684.235822]  ? __lock_acquire+0x7fc/0x5020
[  684.240050]  ? __lock_acquire+0x7fc/0x5020
[  684.244271]  ? __lock_acquire+0x7fc/0x5020
[  684.248493]  ? __cleanup_sighand+0x70/0x70
[  684.252709]  ? debug_check_no_locks_freed+0x310/0x310
[  684.257890]  ? debug_check_no_locks_freed+0x310/0x310
[  684.263065]  ? print_usage_bug+0xc0/0xc0
[  684.267111]  ? print_usage_bug+0xc0/0xc0
[  684.271155]  ? d_splice_alias+0x7c9/0x11f0
[  684.275374]  ? lock_downgrade+0x8f0/0x8f0
[  684.279520]  ? d_instantiate_anon+0x30/0x30
[  684.283824]  ? __lock_acquire+0x7fc/0x5020
[  684.288056]  ? print_usage_bug+0xc0/0xc0
[  684.292107]  ? debug_check_no_locks_freed+0x310/0x310
[  684.297278]  ? debug_check_no_locks_freed+0x310/0x310
[  684.302448]  ? __lock_acquire+0x7fc/0x5020
[  684.306664]  ? print_usage_bug+0xc0/0xc0
[  684.310704]  ? lock_downgrade+0x8f0/0x8f0
[  684.314837]  ? debug_check_no_locks_freed+0x310/0x310
[  684.320020]  ? print_usage_bug+0xc0/0xc0
[  684.324072]  ? graph_lock+0x170/0x170
[  684.327859]  ? do_raw_spin_lock+0xc1/0x200
[  684.332083]  ? graph_lock+0x170/0x170
[  684.335870]  ? graph_lock+0x170/0x170
[  684.339657]  ? find_held_lock+0x36/0x1c0
[  684.343701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.349218]  ? _parse_integer+0x13b/0x190
[  684.353348]  ? graph_lock+0x170/0x170
[  684.357129]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  684.362647]  ? _kstrtoull+0x188/0x250
[  684.366431]  ? _parse_integer+0x190/0x190
[  684.370564]  ? graph_lock+0x170/0x170
[  684.374356]  ? lock_release+0xa30/0xa30
[  684.378311]  ? find_held_lock+0x36/0x1c0
[  684.382357]  ? lock_downgrade+0x8f0/0x8f0
[  684.386490]  ? kasan_check_read+0x11/0x20
[  684.390628]  ? rcu_is_watching+0x8c/0x150
[  684.394758]  ? pid_task+0x115/0x200
[  684.398364]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  684.402840]  ? save_stack+0xa9/0xd0
[  684.406467]  ? graph_lock+0x170/0x170
[  684.410252]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  684.415782]  ? proc_fail_nth_write+0x9e/0x210
[  684.420271]  ? proc_cwd_link+0x1d0/0x1d0
[  684.424319]  ? kasan_check_read+0x11/0x20
[  684.428452]  ? find_held_lock+0x36/0x1c0
[  684.432504]  _do_fork+0x291/0x12a0
[  684.436043]  ? fork_idle+0x1a0/0x1a0
[  684.439749]  ? __lock_is_held+0xb5/0x140
[  684.443798]  ? __sb_end_write+0xac/0xe0
[  684.447753]  ? vfs_write+0x2a8/0x560
[  684.451449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.456962]  ? ksys_write+0x1ae/0x260
[  684.460743]  ? __ia32_sys_read+0xb0/0xb0
[  684.464794]  ? syscall_slow_exit_work+0x500/0x500
[  684.469629]  __x64_sys_clone+0xbf/0x150
[  684.473585]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  684.478583]  do_syscall_64+0x1b9/0x820
[  684.482452]  ? syscall_return_slowpath+0x5e0/0x5e0
[  684.487361]  ? syscall_return_slowpath+0x31d/0x5e0
[  684.492275]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  684.497622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  684.502459]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  684.507629] RIP: 0033:0x441519
[  684.510804] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  684.529996] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  684.537695] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  684.544944] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  684.552195] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  684.559445] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  684.566691] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  684.578535] FAULT_INJECTION: forcing a failure.
[  684.578535] name failslab, interval 1, probability 0, space 0, times 0
[  684.589780] CPU: 0 PID: 4758 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  684.596860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  684.606205] Call Trace:
[  684.608778]  dump_stack+0x1c9/0x2b4
[  684.612389]  ? dump_stack_print_info.cold.2+0x52/0x52
[  684.617559]  ? save_stack+0x43/0xd0
[  684.621167]  ? kasan_kmalloc+0xc4/0xe0
[  684.625043]  ? kasan_slab_alloc+0x12/0x20
[  684.629212]  ? kmem_cache_alloc+0x12e/0x760
[  684.633518]  ? copy_creds+0x7b/0x470
[  684.637228]  should_fail.cold.4+0xa/0x1a
[  684.641272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  684.646361]  ? find_held_lock+0x36/0x1c0
[  684.650411]  ? find_held_lock+0x36/0x1c0
[  684.654462]  ? check_same_owner+0x340/0x340
[  684.658763]  ? rcu_is_watching+0x8c/0x150
[  684.662901]  ? rcu_note_context_switch+0x730/0x730
[  684.667832]  ? security_prepare_creds+0x94/0xc0
[  684.672517]  __should_failslab+0x124/0x180
[  684.676750]  should_failslab+0x9/0x14
[  684.680535]  kmem_cache_alloc+0x2af/0x760
[  684.684666]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  684.689669]  __delayacct_tsk_init+0x20/0x80
[  684.693975]  copy_process.part.39+0x2ba8/0x7250
[  684.698639]  ? __lock_acquire+0x7fc/0x5020
[  684.702863]  ? __lock_acquire+0x7fc/0x5020
[  684.707081]  ? __lock_acquire+0x7fc/0x5020
[  684.711304]  ? __cleanup_sighand+0x70/0x70
[  684.715532]  ? debug_check_no_locks_freed+0x310/0x310
[  684.720703]  ? debug_check_no_locks_freed+0x310/0x310
[  684.725874]  ? print_usage_bug+0xc0/0xc0
[  684.729934]  ? print_usage_bug+0xc0/0xc0
[  684.733986]  ? d_splice_alias+0x7c9/0x11f0
[  684.738203]  ? lock_downgrade+0x8f0/0x8f0
[  684.742342]  ? d_instantiate_anon+0x30/0x30
[  684.746648]  ? __lock_acquire+0x7fc/0x5020
[  684.750867]  ? print_usage_bug+0xc0/0xc0
[  684.754924]  ? debug_check_no_locks_freed+0x310/0x310
[  684.760101]  ? debug_check_no_locks_freed+0x310/0x310
[  684.765285]  ? __lock_acquire+0x7fc/0x5020
[  684.769503]  ? print_usage_bug+0xc0/0xc0
[  684.773555]  ? lock_downgrade+0x8f0/0x8f0
[  684.777695]  ? debug_check_no_locks_freed+0x310/0x310
[  684.782881]  ? print_usage_bug+0xc0/0xc0
[  684.786933]  ? graph_lock+0x170/0x170
[  684.790713]  ? do_raw_spin_lock+0xc1/0x200
[  684.794933]  ? graph_lock+0x170/0x170
[  684.798730]  ? graph_lock+0x170/0x170
[  684.802531]  ? find_held_lock+0x36/0x1c0
[  684.806590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.812122]  ? _parse_integer+0x13b/0x190
[  684.816257]  ? graph_lock+0x170/0x170
[  684.820046]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  684.825567]  ? _kstrtoull+0x188/0x250
[  684.829350]  ? _parse_integer+0x190/0x190
[  684.833491]  ? graph_lock+0x170/0x170
[  684.837275]  ? lock_release+0xa30/0xa30
[  684.841242]  ? find_held_lock+0x36/0x1c0
[  684.845301]  ? lock_downgrade+0x8f0/0x8f0
[  684.849442]  ? kasan_check_read+0x11/0x20
[  684.853578]  ? rcu_is_watching+0x8c/0x150
[  684.857712]  ? pid_task+0x115/0x200
[  684.861343]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  684.865730]  ? save_stack+0xa9/0xd0
[  684.869339]  ? graph_lock+0x170/0x170
[  684.873134]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  684.878655]  ? proc_fail_nth_write+0x9e/0x210
[  684.883134]  ? proc_cwd_link+0x1d0/0x1d0
[  684.887179]  ? kasan_check_read+0x11/0x20
[  684.891325]  ? find_held_lock+0x36/0x1c0
[  684.895385]  _do_fork+0x291/0x12a0
[  684.898919]  ? fork_idle+0x1a0/0x1a0
[  684.902617]  ? __lock_is_held+0xb5/0x140
[  684.906664]  ? __sb_end_write+0xac/0xe0
[  684.910621]  ? vfs_write+0x2a8/0x560
[  684.914331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.919846]  ? ksys_write+0x1ae/0x260
[  684.923639]  ? __ia32_sys_read+0xb0/0xb0
[  684.927696]  ? syscall_slow_exit_work+0x500/0x500
[  684.932535]  __x64_sys_clone+0xbf/0x150
[  684.936493]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  684.941505]  do_syscall_64+0x1b9/0x820
[  684.945390]  ? syscall_return_slowpath+0x5e0/0x5e0
[  684.950315]  ? syscall_return_slowpath+0x31d/0x5e0
[  684.955239]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  684.960593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  684.965423]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  684.970594] RIP: 0033:0x441519
[  684.973762] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  684.992936] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  685.000626] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  685.007886] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  685.015144] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  685.022393] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  685.029641] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  685.042139] FAULT_INJECTION: forcing a failure.
[  685.042139] name failslab, interval 1, probability 0, space 0, times 0
[  685.053358] CPU: 1 PID: 4760 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  685.060434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  685.069765] Call Trace:
[  685.072350]  dump_stack+0x1c9/0x2b4
[  685.075962]  ? dump_stack_print_info.cold.2+0x52/0x52
[  685.081136]  ? save_stack+0x43/0xd0
[  685.084753]  ? kasan_kmalloc+0xc4/0xe0
[  685.088621]  ? kasan_slab_alloc+0x12/0x20
[  685.092757]  ? kmem_cache_alloc+0x12e/0x760
[  685.097065]  ? copy_creds+0x7b/0x470
[  685.100765]  should_fail.cold.4+0xa/0x1a
[  685.104816]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  685.109910]  ? find_held_lock+0x36/0x1c0
[  685.113956]  ? find_held_lock+0x36/0x1c0
[  685.118006]  ? check_same_owner+0x340/0x340
[  685.122315]  ? rcu_is_watching+0x8c/0x150
[  685.126443]  ? rcu_note_context_switch+0x730/0x730
[  685.131359]  ? security_prepare_creds+0x94/0xc0
[  685.136020]  __should_failslab+0x124/0x180
[  685.140247]  should_failslab+0x9/0x14
[  685.144038]  kmem_cache_alloc+0x2af/0x760
[  685.148172]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  685.153191]  __delayacct_tsk_init+0x20/0x80
[  685.157505]  copy_process.part.39+0x2ba8/0x7250
[  685.162159]  ? __lock_acquire+0x7fc/0x5020
[  685.166376]  ? __lock_acquire+0x7fc/0x5020
[  685.170592]  ? __lock_acquire+0x7fc/0x5020
[  685.174812]  ? __cleanup_sighand+0x70/0x70
[  685.179042]  ? debug_check_no_locks_freed+0x310/0x310
[  685.184213]  ? debug_check_no_locks_freed+0x310/0x310
[  685.189382]  ? print_usage_bug+0xc0/0xc0
[  685.193939]  ? print_usage_bug+0xc0/0xc0
[  685.197980]  ? d_splice_alias+0x7c9/0x11f0
[  685.202194]  ? lock_downgrade+0x8f0/0x8f0
[  685.206324]  ? d_instantiate_anon+0x30/0x30
[  685.210628]  ? __lock_acquire+0x7fc/0x5020
[  685.214844]  ? print_usage_bug+0xc0/0xc0
[  685.218897]  ? debug_check_no_locks_freed+0x310/0x310
[  685.224077]  ? debug_check_no_locks_freed+0x310/0x310
[  685.229262]  ? __lock_acquire+0x7fc/0x5020
[  685.233480]  ? print_usage_bug+0xc0/0xc0
[  685.237533]  ? lock_downgrade+0x8f0/0x8f0
[  685.241668]  ? debug_check_no_locks_freed+0x310/0x310
[  685.246842]  ? print_usage_bug+0xc0/0xc0
[  685.250881]  ? graph_lock+0x170/0x170
[  685.254660]  ? do_raw_spin_lock+0xc1/0x200
[  685.258876]  ? graph_lock+0x170/0x170
[  685.262663]  ? graph_lock+0x170/0x170
[  685.266452]  ? find_held_lock+0x36/0x1c0
[  685.270497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.276024]  ? _parse_integer+0x13b/0x190
[  685.280162]  ? graph_lock+0x170/0x170
[  685.283947]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  685.289467]  ? _kstrtoull+0x188/0x250
[  685.293247]  ? _parse_integer+0x190/0x190
[  685.297380]  ? graph_lock+0x170/0x170
[  685.301173]  ? lock_release+0xa30/0xa30
[  685.305132]  ? find_held_lock+0x36/0x1c0
[  685.309178]  ? lock_downgrade+0x8f0/0x8f0
[  685.313313]  ? kasan_check_read+0x11/0x20
[  685.317441]  ? rcu_is_watching+0x8c/0x150
[  685.321579]  ? pid_task+0x115/0x200
[  685.325197]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  685.329599]  ? save_stack+0xa9/0xd0
[  685.333218]  ? graph_lock+0x170/0x170
[  685.337019]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  685.342545]  ? proc_fail_nth_write+0x9e/0x210
[  685.347030]  ? proc_cwd_link+0x1d0/0x1d0
[  685.351079]  ? kasan_check_read+0x11/0x20
[  685.355210]  ? find_held_lock+0x36/0x1c0
[  685.359268]  _do_fork+0x291/0x12a0
[  685.362794]  ? fork_idle+0x1a0/0x1a0
[  685.366503]  ? __lock_is_held+0xb5/0x140
[  685.370556]  ? __sb_end_write+0xac/0xe0
[  685.374514]  ? vfs_write+0x2a8/0x560
[  685.378226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.383757]  ? ksys_write+0x1ae/0x260
[  685.387542]  ? __ia32_sys_read+0xb0/0xb0
[  685.391596]  ? syscall_slow_exit_work+0x500/0x500
[  685.396429]  __x64_sys_clone+0xbf/0x150
[  685.400382]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  685.405378]  do_syscall_64+0x1b9/0x820
[  685.409248]  ? syscall_return_slowpath+0x5e0/0x5e0
[  685.414170]  ? syscall_return_slowpath+0x31d/0x5e0
[  685.419086]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  685.424446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  685.429281]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  685.434452] RIP: 0033:0x441519
[  685.437627] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  685.456850] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  685.464540] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  685.471786] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  685.479039] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  685.486287] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  685.493539] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  685.505466] FAULT_INJECTION: forcing a failure.
[  685.505466] name failslab, interval 1, probability 0, space 0, times 0
[  685.516677] CPU: 1 PID: 4762 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  685.523758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  685.533100] Call Trace:
[  685.535680]  dump_stack+0x1c9/0x2b4
[  685.539288]  ? dump_stack_print_info.cold.2+0x52/0x52
[  685.544459]  ? save_stack+0x43/0xd0
[  685.548063]  ? kasan_kmalloc+0xc4/0xe0
[  685.551929]  ? kasan_slab_alloc+0x12/0x20
[  685.556062]  ? kmem_cache_alloc+0x12e/0x760
[  685.560375]  ? copy_creds+0x7b/0x470
[  685.564083]  should_fail.cold.4+0xa/0x1a
[  685.568129]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  685.573212]  ? find_held_lock+0x36/0x1c0
[  685.577261]  ? find_held_lock+0x36/0x1c0
[  685.581325]  ? check_same_owner+0x340/0x340
[  685.585633]  ? rcu_is_watching+0x8c/0x150
[  685.589769]  ? rcu_note_context_switch+0x730/0x730
[  685.594679]  ? security_prepare_creds+0x94/0xc0
[  685.599333]  __should_failslab+0x124/0x180
[  685.603551]  should_failslab+0x9/0x14
[  685.607330]  kmem_cache_alloc+0x2af/0x760
[  685.611461]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  685.616467]  __delayacct_tsk_init+0x20/0x80
[  685.620768]  copy_process.part.39+0x2ba8/0x7250
[  685.625416]  ? __lock_acquire+0x7fc/0x5020
[  685.629635]  ? __lock_acquire+0x7fc/0x5020
[  685.633852]  ? __lock_acquire+0x7fc/0x5020
[  685.638078]  ? __cleanup_sighand+0x70/0x70
[  685.642294]  ? debug_check_no_locks_freed+0x310/0x310
[  685.647465]  ? debug_check_no_locks_freed+0x310/0x310
[  685.652642]  ? print_usage_bug+0xc0/0xc0
[  685.656698]  ? print_usage_bug+0xc0/0xc0
[  685.660745]  ? d_splice_alias+0x7c9/0x11f0
[  685.664962]  ? lock_downgrade+0x8f0/0x8f0
[  685.669092]  ? d_instantiate_anon+0x30/0x30
[  685.673393]  ? __lock_acquire+0x7fc/0x5020
[  685.677612]  ? print_usage_bug+0xc0/0xc0
[  685.681657]  ? debug_check_no_locks_freed+0x310/0x310
[  685.686833]  ? debug_check_no_locks_freed+0x310/0x310
[  685.692010]  ? __lock_acquire+0x7fc/0x5020
[  685.696233]  ? print_usage_bug+0xc0/0xc0
[  685.700276]  ? lock_downgrade+0x8f0/0x8f0
[  685.704410]  ? debug_check_no_locks_freed+0x310/0x310
[  685.709582]  ? print_usage_bug+0xc0/0xc0
[  685.713620]  ? graph_lock+0x170/0x170
[  685.717404]  ? do_raw_spin_lock+0xc1/0x200
[  685.721618]  ? graph_lock+0x170/0x170
[  685.725402]  ? graph_lock+0x170/0x170
[  685.729187]  ? find_held_lock+0x36/0x1c0
[  685.733228]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.738751]  ? _parse_integer+0x13b/0x190
[  685.742881]  ? graph_lock+0x170/0x170
[  685.746664]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  685.752182]  ? _kstrtoull+0x188/0x250
[  685.755965]  ? _parse_integer+0x190/0x190
[  685.760095]  ? graph_lock+0x170/0x170
[  685.763878]  ? lock_release+0xa30/0xa30
[  685.767841]  ? find_held_lock+0x36/0x1c0
[  685.771904]  ? lock_downgrade+0x8f0/0x8f0
[  685.776048]  ? kasan_check_read+0x11/0x20
[  685.780177]  ? rcu_is_watching+0x8c/0x150
[  685.784303]  ? pid_task+0x115/0x200
[  685.787919]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  685.792312]  ? save_stack+0xa9/0xd0
[  685.795932]  ? graph_lock+0x170/0x170
[  685.799718]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  685.805238]  ? proc_fail_nth_write+0x9e/0x210
[  685.809714]  ? proc_cwd_link+0x1d0/0x1d0
[  685.813760]  ? kasan_check_read+0x11/0x20
[  685.817888]  ? find_held_lock+0x36/0x1c0
[  685.821934]  _do_fork+0x291/0x12a0
[  685.825457]  ? fork_idle+0x1a0/0x1a0
[  685.829156]  ? __lock_is_held+0xb5/0x140
[  685.833201]  ? __sb_end_write+0xac/0xe0
[  685.837155]  ? vfs_write+0x2a8/0x560
[  685.840854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.846370]  ? ksys_write+0x1ae/0x260
[  685.850149]  ? __ia32_sys_read+0xb0/0xb0
[  685.854191]  ? syscall_slow_exit_work+0x500/0x500
[  685.859051]  __x64_sys_clone+0xbf/0x150
[  685.863017]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  685.868034]  do_syscall_64+0x1b9/0x820
[  685.871904]  ? syscall_return_slowpath+0x5e0/0x5e0
[  685.876812]  ? syscall_return_slowpath+0x31d/0x5e0
[  685.881729]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  685.887074]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  685.891896]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  685.897075] RIP: 0033:0x441519
[  685.900242] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  685.919416] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  685.927103] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  685.934352] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  685.941600] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  685.948850] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  685.956096] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  685.968690] FAULT_INJECTION: forcing a failure.
[  685.968690] name failslab, interval 1, probability 0, space 0, times 0
[  685.979924] CPU: 1 PID: 4764 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  685.987022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  685.996371] Call Trace:
[  685.998965]  dump_stack+0x1c9/0x2b4
[  686.002588]  ? dump_stack_print_info.cold.2+0x52/0x52
[  686.007767]  ? save_stack+0x43/0xd0
[  686.011377]  ? kasan_kmalloc+0xc4/0xe0
[  686.015242]  ? kasan_slab_alloc+0x12/0x20
[  686.019368]  ? kmem_cache_alloc+0x12e/0x760
[  686.023672]  ? copy_creds+0x7b/0x470
[  686.027372]  should_fail.cold.4+0xa/0x1a
[  686.031417]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  686.036502]  ? find_held_lock+0x36/0x1c0
[  686.040550]  ? find_held_lock+0x36/0x1c0
[  686.044608]  ? check_same_owner+0x340/0x340
[  686.048912]  ? rcu_is_watching+0x8c/0x150
[  686.053051]  ? rcu_note_context_switch+0x730/0x730
[  686.057970]  ? security_prepare_creds+0x94/0xc0
[  686.062634]  __should_failslab+0x124/0x180
[  686.066854]  should_failslab+0x9/0x14
[  686.070644]  kmem_cache_alloc+0x2af/0x760
[  686.074778]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  686.079784]  __delayacct_tsk_init+0x20/0x80
[  686.084090]  copy_process.part.39+0x2ba8/0x7250
[  686.088740]  ? __lock_acquire+0x7fc/0x5020
[  686.092960]  ? __lock_acquire+0x7fc/0x5020
[  686.097174]  ? __lock_acquire+0x7fc/0x5020
[  686.101396]  ? __cleanup_sighand+0x70/0x70
[  686.105612]  ? debug_check_no_locks_freed+0x310/0x310
[  686.110781]  ? debug_check_no_locks_freed+0x310/0x310
[  686.115957]  ? print_usage_bug+0xc0/0xc0
[  686.120019]  ? print_usage_bug+0xc0/0xc0
[  686.124080]  ? d_splice_alias+0x7c9/0x11f0
[  686.128296]  ? lock_downgrade+0x8f0/0x8f0
[  686.132434]  ? d_instantiate_anon+0x30/0x30
[  686.136751]  ? __lock_acquire+0x7fc/0x5020
[  686.140980]  ? print_usage_bug+0xc0/0xc0
[  686.145038]  ? debug_check_no_locks_freed+0x310/0x310
[  686.150224]  ? debug_check_no_locks_freed+0x310/0x310
[  686.155402]  ? __lock_acquire+0x7fc/0x5020
[  686.159618]  ? print_usage_bug+0xc0/0xc0
[  686.163664]  ? lock_downgrade+0x8f0/0x8f0
[  686.167807]  ? debug_check_no_locks_freed+0x310/0x310
[  686.172979]  ? print_usage_bug+0xc0/0xc0
[  686.177033]  ? graph_lock+0x170/0x170
[  686.180820]  ? do_raw_spin_lock+0xc1/0x200
[  686.185049]  ? graph_lock+0x170/0x170
[  686.188836]  ? graph_lock+0x170/0x170
[  686.192633]  ? find_held_lock+0x36/0x1c0
[  686.196686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.202210]  ? _parse_integer+0x13b/0x190
[  686.206336]  ? graph_lock+0x170/0x170
[  686.210118]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  686.215639]  ? _kstrtoull+0x188/0x250
[  686.219426]  ? _parse_integer+0x190/0x190
[  686.223555]  ? graph_lock+0x170/0x170
[  686.227345]  ? lock_release+0xa30/0xa30
[  686.231308]  ? find_held_lock+0x36/0x1c0
[  686.235357]  ? lock_downgrade+0x8f0/0x8f0
[  686.239490]  ? kasan_check_read+0x11/0x20
[  686.243618]  ? rcu_is_watching+0x8c/0x150
[  686.247743]  ? pid_task+0x115/0x200
[  686.251345]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  686.255746]  ? save_stack+0xa9/0xd0
[  686.259356]  ? graph_lock+0x170/0x170
[  686.263152]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  686.268668]  ? proc_fail_nth_write+0x9e/0x210
[  686.273140]  ? proc_cwd_link+0x1d0/0x1d0
[  686.277185]  ? kasan_check_read+0x11/0x20
[  686.281316]  ? find_held_lock+0x36/0x1c0
[  686.285364]  _do_fork+0x291/0x12a0
[  686.288885]  ? fork_idle+0x1a0/0x1a0
[  686.292581]  ? __lock_is_held+0xb5/0x140
[  686.296629]  ? __sb_end_write+0xac/0xe0
[  686.300582]  ? vfs_write+0x2a8/0x560
[  686.304278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.309808]  ? ksys_write+0x1ae/0x260
[  686.313588]  ? __ia32_sys_read+0xb0/0xb0
[  686.317634]  ? syscall_slow_exit_work+0x500/0x500
[  686.322471]  __x64_sys_clone+0xbf/0x150
[  686.326427]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  686.331424]  do_syscall_64+0x1b9/0x820
[  686.335291]  ? syscall_return_slowpath+0x5e0/0x5e0
[  686.340201]  ? syscall_return_slowpath+0x31d/0x5e0
[  686.345125]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  686.350471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  686.355294]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  686.360463] RIP: 0033:0x441519
[  686.363639] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  686.382823] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  686.390514] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  686.397772] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  686.405030] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  686.412283] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  686.419531] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  686.431535] FAULT_INJECTION: forcing a failure.
[  686.431535] name failslab, interval 1, probability 0, space 0, times 0
[  686.442768] CPU: 1 PID: 4766 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  686.449847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  686.461007] Call Trace:
[  686.463593]  dump_stack+0x1c9/0x2b4
[  686.467201]  ? dump_stack_print_info.cold.2+0x52/0x52
[  686.472378]  ? save_stack+0x43/0xd0
[  686.475985]  ? kasan_kmalloc+0xc4/0xe0
[  686.479862]  ? kasan_slab_alloc+0x12/0x20
[  686.483990]  ? kmem_cache_alloc+0x12e/0x760
[  686.488295]  ? copy_creds+0x7b/0x470
[  686.491995]  should_fail.cold.4+0xa/0x1a
[  686.496056]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  686.501155]  ? find_held_lock+0x36/0x1c0
[  686.505213]  ? find_held_lock+0x36/0x1c0
[  686.509265]  ? check_same_owner+0x340/0x340
[  686.513568]  ? rcu_is_watching+0x8c/0x150
[  686.517696]  ? rcu_note_context_switch+0x730/0x730
[  686.522612]  ? security_prepare_creds+0x94/0xc0
[  686.527274]  __should_failslab+0x124/0x180
[  686.531496]  should_failslab+0x9/0x14
[  686.535278]  kmem_cache_alloc+0x2af/0x760
[  686.539412]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  686.544426]  __delayacct_tsk_init+0x20/0x80
[  686.548730]  copy_process.part.39+0x2ba8/0x7250
[  686.556180]  ? __lock_acquire+0x7fc/0x5020
[  686.560408]  ? __lock_acquire+0x7fc/0x5020
[  686.564629]  ? __lock_acquire+0x7fc/0x5020
[  686.568865]  ? __cleanup_sighand+0x70/0x70
[  686.573094]  ? debug_check_no_locks_freed+0x310/0x310
[  686.578267]  ? debug_check_no_locks_freed+0x310/0x310
[  686.583439]  ? print_usage_bug+0xc0/0xc0
[  686.587497]  ? print_usage_bug+0xc0/0xc0
[  686.591555]  ? d_splice_alias+0x7c9/0x11f0
[  686.595773]  ? lock_downgrade+0x8f0/0x8f0
[  686.599902]  ? d_instantiate_anon+0x30/0x30
[  686.604468]  ? __lock_acquire+0x7fc/0x5020
[  686.608691]  ? print_usage_bug+0xc0/0xc0
[  686.612738]  ? debug_check_no_locks_freed+0x310/0x310
[  686.617923]  ? debug_check_no_locks_freed+0x310/0x310
[  686.623107]  ? __lock_acquire+0x7fc/0x5020
[  686.627325]  ? print_usage_bug+0xc0/0xc0
[  686.631375]  ? lock_downgrade+0x8f0/0x8f0
[  686.635510]  ? debug_check_no_locks_freed+0x310/0x310
[  686.640687]  ? print_usage_bug+0xc0/0xc0
[  686.644731]  ? graph_lock+0x170/0x170
[  686.648526]  ? do_raw_spin_lock+0xc1/0x200
[  686.652743]  ? graph_lock+0x170/0x170
[  686.656527]  ? graph_lock+0x170/0x170
[  686.660313]  ? find_held_lock+0x36/0x1c0
[  686.664360]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.669892]  ? _parse_integer+0x13b/0x190
[  686.674047]  ? graph_lock+0x170/0x170
[  686.677837]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  686.683356]  ? _kstrtoull+0x188/0x250
[  686.687145]  ? _parse_integer+0x190/0x190
[  686.691277]  ? graph_lock+0x170/0x170
[  686.695058]  ? lock_release+0xa30/0xa30
[  686.699025]  ? find_held_lock+0x36/0x1c0
[  686.703082]  ? lock_downgrade+0x8f0/0x8f0
[  686.707216]  ? kasan_check_read+0x11/0x20
[  686.711353]  ? rcu_is_watching+0x8c/0x150
[  686.715486]  ? pid_task+0x115/0x200
[  686.719093]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  686.723497]  ? save_stack+0xa9/0xd0
[  686.727116]  ? graph_lock+0x170/0x170
[  686.730900]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  686.736427]  ? proc_fail_nth_write+0x9e/0x210
[  686.740907]  ? proc_cwd_link+0x1d0/0x1d0
[  686.744949]  ? kasan_check_read+0x11/0x20
[  686.749079]  ? find_held_lock+0x36/0x1c0
[  686.753125]  _do_fork+0x291/0x12a0
[  686.756651]  ? fork_idle+0x1a0/0x1a0
[  686.760353]  ? __lock_is_held+0xb5/0x140
[  686.764408]  ? __sb_end_write+0xac/0xe0
[  686.768359]  ? vfs_write+0x2a8/0x560
[  686.772068]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.777583]  ? ksys_write+0x1ae/0x260
[  686.781365]  ? __ia32_sys_read+0xb0/0xb0
[  686.785424]  ? syscall_slow_exit_work+0x500/0x500
[  686.790250]  __x64_sys_clone+0xbf/0x150
[  686.794210]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  686.799221]  do_syscall_64+0x1b9/0x820
[  686.803100]  ? syscall_return_slowpath+0x5e0/0x5e0
[  686.808020]  ? syscall_return_slowpath+0x31d/0x5e0
[  686.812957]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  686.818307]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  686.823145]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  686.828315] RIP: 0033:0x441519
[  686.831480] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  686.850671] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  686.858367] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  686.865630] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
executing program
[  686.872895] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  686.880146] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  686.887396] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  686.899308] FAULT_INJECTION: forcing a failure.
[  686.899308] name failslab, interval 1, probability 0, space 0, times 0
[  686.910544] CPU: 1 PID: 4768 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  686.917625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  686.926983] Call Trace:
[  686.929559]  dump_stack+0x1c9/0x2b4
[  686.933181]  ? dump_stack_print_info.cold.2+0x52/0x52
[  686.938368]  ? save_stack+0x43/0xd0
[  686.941989]  ? kasan_kmalloc+0xc4/0xe0
[  686.945868]  ? kasan_slab_alloc+0x12/0x20
[  686.949997]  ? kmem_cache_alloc+0x12e/0x760
[  686.954303]  ? copy_creds+0x7b/0x470
[  686.958004]  should_fail.cold.4+0xa/0x1a
[  686.962061]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  686.967150]  ? find_held_lock+0x36/0x1c0
[  686.971216]  ? find_held_lock+0x36/0x1c0
[  686.975289]  ? check_same_owner+0x340/0x340
[  686.979615]  ? rcu_is_watching+0x8c/0x150
[  686.983765]  ? rcu_note_context_switch+0x730/0x730
[  686.988688]  ? security_prepare_creds+0x94/0xc0
[  686.993355]  __should_failslab+0x124/0x180
[  686.997576]  should_failslab+0x9/0x14
[  687.001361]  kmem_cache_alloc+0x2af/0x760
[  687.005516]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  687.010525]  __delayacct_tsk_init+0x20/0x80
[  687.014838]  copy_process.part.39+0x2ba8/0x7250
[  687.019490]  ? __lock_acquire+0x7fc/0x5020
[  687.023707]  ? __lock_acquire+0x7fc/0x5020
[  687.027922]  ? __lock_acquire+0x7fc/0x5020
[  687.032143]  ? __cleanup_sighand+0x70/0x70
[  687.036359]  ? debug_check_no_locks_freed+0x310/0x310
[  687.041529]  ? debug_check_no_locks_freed+0x310/0x310
[  687.046700]  ? print_usage_bug+0xc0/0xc0
[  687.050754]  ? print_usage_bug+0xc0/0xc0
[  687.054805]  ? d_splice_alias+0x7c9/0x11f0
[  687.059030]  ? lock_downgrade+0x8f0/0x8f0
[  687.063165]  ? d_instantiate_anon+0x30/0x30
[  687.067471]  ? __lock_acquire+0x7fc/0x5020
[  687.071695]  ? print_usage_bug+0xc0/0xc0
[  687.075747]  ? debug_check_no_locks_freed+0x310/0x310
[  687.080918]  ? debug_check_no_locks_freed+0x310/0x310
[  687.086093]  ? __lock_acquire+0x7fc/0x5020
[  687.090308]  ? print_usage_bug+0xc0/0xc0
[  687.094350]  ? lock_downgrade+0x8f0/0x8f0
[  687.098485]  ? debug_check_no_locks_freed+0x310/0x310
[  687.103655]  ? print_usage_bug+0xc0/0xc0
[  687.107695]  ? graph_lock+0x170/0x170
[  687.111476]  ? do_raw_spin_lock+0xc1/0x200
[  687.115690]  ? graph_lock+0x170/0x170
[  687.119480]  ? graph_lock+0x170/0x170
[  687.123262]  ? find_held_lock+0x36/0x1c0
[  687.127307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  687.132825]  ? _parse_integer+0x13b/0x190
[  687.136956]  ? graph_lock+0x170/0x170
[  687.140742]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  687.146261]  ? _kstrtoull+0x188/0x250
[  687.150047]  ? _parse_integer+0x190/0x190
[  687.154174]  ? graph_lock+0x170/0x170
[  687.157955]  ? lock_release+0xa30/0xa30
[  687.161914]  ? find_held_lock+0x36/0x1c0
[  687.165961]  ? lock_downgrade+0x8f0/0x8f0
[  687.170091]  ? kasan_check_read+0x11/0x20
[  687.174221]  ? rcu_is_watching+0x8c/0x150
[  687.178348]  ? pid_task+0x115/0x200
[  687.181965]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  687.186353]  ? save_stack+0xa9/0xd0
[  687.189961]  ? graph_lock+0x170/0x170
[  687.193742]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  687.199260]  ? proc_fail_nth_write+0x9e/0x210
[  687.204165]  ? proc_cwd_link+0x1d0/0x1d0
[  687.208208]  ? kasan_check_read+0x11/0x20
[  687.212337]  ? find_held_lock+0x36/0x1c0
[  687.216394]  _do_fork+0x291/0x12a0
[  687.219930]  ? fork_idle+0x1a0/0x1a0
[  687.223628]  ? __lock_is_held+0xb5/0x140
[  687.227689]  ? __sb_end_write+0xac/0xe0
[  687.231643]  ? vfs_write+0x2a8/0x560
[  687.235346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  687.240864]  ? ksys_write+0x1ae/0x260
[  687.244646]  ? __ia32_sys_read+0xb0/0xb0
[  687.248688]  ? syscall_slow_exit_work+0x500/0x500
[  687.253513]  __x64_sys_clone+0xbf/0x150
[  687.257468]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  687.262466]  do_syscall_64+0x1b9/0x820
[  687.266332]  ? syscall_return_slowpath+0x5e0/0x5e0
[  687.271239]  ? syscall_return_slowpath+0x31d/0x5e0
[  687.276153]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  687.281501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  687.286329]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  687.291495] RIP: 0033:0x441519
[  687.294660] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  687.313831] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  687.321529] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  687.328778] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  687.336031] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  687.343291] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  687.350549] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  687.362417] FAULT_INJECTION: forcing a failure.
[  687.362417] name failslab, interval 1, probability 0, space 0, times 0
[  687.373641] CPU: 1 PID: 4770 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  687.380716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  687.390054] Call Trace:
[  687.392635]  dump_stack+0x1c9/0x2b4
[  687.396257]  ? dump_stack_print_info.cold.2+0x52/0x52
[  687.401428]  ? save_stack+0x43/0xd0
[  687.405042]  ? kasan_kmalloc+0xc4/0xe0
[  687.408913]  ? kasan_slab_alloc+0x12/0x20
[  687.413047]  ? kmem_cache_alloc+0x12e/0x760
[  687.417350]  ? copy_creds+0x7b/0x470
[  687.421053]  should_fail.cold.4+0xa/0x1a
[  687.425116]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  687.430203]  ? find_held_lock+0x36/0x1c0
[  687.434254]  ? find_held_lock+0x36/0x1c0
[  687.438304]  ? check_same_owner+0x340/0x340
[  687.442610]  ? rcu_is_watching+0x8c/0x150
[  687.446740]  ? rcu_note_context_switch+0x730/0x730
[  687.451651]  ? security_prepare_creds+0x94/0xc0
[  687.456303]  __should_failslab+0x124/0x180
[  687.460534]  should_failslab+0x9/0x14
[  687.464317]  kmem_cache_alloc+0x2af/0x760
[  687.468449]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  687.473453]  __delayacct_tsk_init+0x20/0x80
[  687.477760]  copy_process.part.39+0x2ba8/0x7250
[  687.482414]  ? __lock_acquire+0x7fc/0x5020
[  687.486642]  ? __lock_acquire+0x7fc/0x5020
[  687.490867]  ? __lock_acquire+0x7fc/0x5020
[  687.495092]  ? __cleanup_sighand+0x70/0x70
[  687.499307]  ? debug_check_no_locks_freed+0x310/0x310
[  687.504486]  ? debug_check_no_locks_freed+0x310/0x310
[  687.509654]  ? print_usage_bug+0xc0/0xc0
[  687.513697]  ? print_usage_bug+0xc0/0xc0
[  687.517738]  ? d_splice_alias+0x7c9/0x11f0
[  687.521952]  ? lock_downgrade+0x8f0/0x8f0
[  687.526089]  ? d_instantiate_anon+0x30/0x30
[  687.530404]  ? __lock_acquire+0x7fc/0x5020
[  687.534627]  ? print_usage_bug+0xc0/0xc0
[  687.538679]  ? debug_check_no_locks_freed+0x310/0x310
[  687.543855]  ? debug_check_no_locks_freed+0x310/0x310
[  687.549036]  ? __lock_acquire+0x7fc/0x5020
[  687.553254]  ? print_usage_bug+0xc0/0xc0
[  687.557297]  ? lock_downgrade+0x8f0/0x8f0
[  687.561429]  ? debug_check_no_locks_freed+0x310/0x310
[  687.566604]  ? print_usage_bug+0xc0/0xc0
[  687.570643]  ? graph_lock+0x170/0x170
[  687.574446]  ? do_raw_spin_lock+0xc1/0x200
[  687.578664]  ? graph_lock+0x170/0x170
[  687.582454]  ? graph_lock+0x170/0x170
[  687.586241]  ? find_held_lock+0x36/0x1c0
[  687.590282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  687.595797]  ? _parse_integer+0x13b/0x190
[  687.599934]  ? graph_lock+0x170/0x170
[  687.603713]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  687.609227]  ? _kstrtoull+0x188/0x250
[  687.613009]  ? _parse_integer+0x190/0x190
[  687.617144]  ? graph_lock+0x170/0x170
[  687.620926]  ? lock_release+0xa30/0xa30
[  687.624881]  ? find_held_lock+0x36/0x1c0
[  687.628926]  ? lock_downgrade+0x8f0/0x8f0
[  687.633061]  ? kasan_check_read+0x11/0x20
[  687.637197]  ? rcu_is_watching+0x8c/0x150
[  687.641324]  ? pid_task+0x115/0x200
[  687.644929]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  687.649315]  ? save_stack+0xa9/0xd0
[  687.653183]  ? graph_lock+0x170/0x170
[  687.656967]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  687.662484]  ? proc_fail_nth_write+0x9e/0x210
[  687.666967]  ? proc_cwd_link+0x1d0/0x1d0
[  687.671269]  ? kasan_check_read+0x11/0x20
[  687.675401]  ? find_held_lock+0x36/0x1c0
[  687.679445]  _do_fork+0x291/0x12a0
[  687.682968]  ? fork_idle+0x1a0/0x1a0
[  687.686662]  ? __lock_is_held+0xb5/0x140
[  687.690722]  ? __sb_end_write+0xac/0xe0
[  687.694675]  ? vfs_write+0x2a8/0x560
[  687.698374]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  687.703999]  ? ksys_write+0x1ae/0x260
[  687.707790]  ? __ia32_sys_read+0xb0/0xb0
[  687.711843]  ? syscall_slow_exit_work+0x500/0x500
[  687.716680]  __x64_sys_clone+0xbf/0x150
[  687.720636]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  687.725638]  do_syscall_64+0x1b9/0x820
[  687.729507]  ? syscall_return_slowpath+0x5e0/0x5e0
[  687.734416]  ? syscall_return_slowpath+0x31d/0x5e0
[  687.739330]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  687.744689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  687.749513]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  687.754679] RIP: 0033:0x441519
[  687.757845] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  687.777052] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  687.784742] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  687.791999] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  687.799255] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  687.806504] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  687.813762] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  687.826051] FAULT_INJECTION: forcing a failure.
[  687.826051] name failslab, interval 1, probability 0, space 0, times 0
[  687.837348] CPU: 1 PID: 4772 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  687.844428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  687.853770] Call Trace:
[  687.856353]  dump_stack+0x1c9/0x2b4
[  687.859974]  ? dump_stack_print_info.cold.2+0x52/0x52
[  687.865148]  ? save_stack+0x43/0xd0
[  687.868758]  ? kasan_kmalloc+0xc4/0xe0
[  687.872629]  ? kasan_slab_alloc+0x12/0x20
[  687.876768]  ? kmem_cache_alloc+0x12e/0x760
[  687.881071]  ? copy_creds+0x7b/0x470
[  687.884771]  should_fail.cold.4+0xa/0x1a
[  687.888817]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  687.893903]  ? find_held_lock+0x36/0x1c0
[  687.897951]  ? find_held_lock+0x36/0x1c0
[  687.902004]  ? check_same_owner+0x340/0x340
[  687.906318]  ? rcu_note_context_switch+0x730/0x730
[  687.911244]  ? security_prepare_creds+0x94/0xc0
[  687.915899]  __should_failslab+0x124/0x180
[  687.920118]  should_failslab+0x9/0x14
[  687.923911]  kmem_cache_alloc+0x2af/0x760
[  687.928054]  __delayacct_tsk_init+0x20/0x80
[  687.932360]  copy_process.part.39+0x2ba8/0x7250
[  687.937021]  ? __lock_acquire+0x7fc/0x5020
[  687.941244]  ? __lock_acquire+0x7fc/0x5020
[  687.945458]  ? __lock_acquire+0x7fc/0x5020
[  687.949679]  ? __cleanup_sighand+0x70/0x70
[  687.953893]  ? debug_check_no_locks_freed+0x310/0x310
[  687.959066]  ? debug_check_no_locks_freed+0x310/0x310
[  687.964246]  ? print_usage_bug+0xc0/0xc0
[  687.968292]  ? print_usage_bug+0xc0/0xc0
[  687.972336]  ? d_splice_alias+0x7c9/0x11f0
[  687.976555]  ? lock_downgrade+0x8f0/0x8f0
[  687.980695]  ? d_instantiate_anon+0x30/0x30
[  687.985016]  ? __lock_acquire+0x7fc/0x5020
[  687.989246]  ? print_usage_bug+0xc0/0xc0
[  687.993303]  ? debug_check_no_locks_freed+0x310/0x310
[  687.998475]  ? debug_check_no_locks_freed+0x310/0x310
[  688.003657]  ? __lock_acquire+0x7fc/0x5020
[  688.007881]  ? print_usage_bug+0xc0/0xc0
[  688.011924]  ? lock_downgrade+0x8f0/0x8f0
[  688.016065]  ? debug_check_no_locks_freed+0x310/0x310
[  688.021240]  ? print_usage_bug+0xc0/0xc0
[  688.025284]  ? graph_lock+0x170/0x170
[  688.029065]  ? do_raw_spin_lock+0xc1/0x200
[  688.033302]  ? graph_lock+0x170/0x170
[  688.037092]  ? graph_lock+0x170/0x170
[  688.040877]  ? find_held_lock+0x36/0x1c0
[  688.044920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.050439]  ? _parse_integer+0x13b/0x190
[  688.054569]  ? graph_lock+0x170/0x170
[  688.058354]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  688.063874]  ? _kstrtoull+0x188/0x250
[  688.067654]  ? _parse_integer+0x190/0x190
[  688.071781]  ? graph_lock+0x170/0x170
[  688.075578]  ? lock_release+0xa30/0xa30
[  688.079537]  ? find_held_lock+0x36/0x1c0
[  688.083585]  ? lock_downgrade+0x8f0/0x8f0
[  688.087716]  ? kasan_check_read+0x11/0x20
[  688.092811]  ? rcu_is_watching+0x8c/0x150
[  688.096946]  ? pid_task+0x115/0x200
[  688.100560]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  688.104949]  ? save_stack+0xa9/0xd0
[  688.108561]  ? graph_lock+0x170/0x170
[  688.112355]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  688.117880]  ? proc_fail_nth_write+0x9e/0x210
[  688.122355]  ? proc_cwd_link+0x1d0/0x1d0
[  688.126397]  ? kasan_check_read+0x11/0x20
[  688.130529]  ? find_held_lock+0x36/0x1c0
[  688.134586]  _do_fork+0x291/0x12a0
[  688.138116]  ? fork_idle+0x1a0/0x1a0
[  688.141811]  ? __lock_is_held+0xb5/0x140
[  688.145862]  ? __sb_end_write+0xac/0xe0
[  688.149827]  ? vfs_write+0x2a8/0x560
[  688.153529]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.159052]  ? ksys_write+0x1ae/0x260
[  688.162842]  ? __ia32_sys_read+0xb0/0xb0
[  688.166904]  ? syscall_slow_exit_work+0x500/0x500
[  688.171739]  __x64_sys_clone+0xbf/0x150
[  688.175697]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  688.180698]  do_syscall_64+0x1b9/0x820
[  688.184571]  ? syscall_return_slowpath+0x5e0/0x5e0
[  688.189490]  ? syscall_return_slowpath+0x31d/0x5e0
[  688.194430]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  688.199780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  688.204609]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  688.209781] RIP: 0033:0x441519
[  688.212955] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  688.232148] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  688.239841] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  688.247095] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  688.254345] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  688.261596] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  688.268860] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  688.281481] FAULT_INJECTION: forcing a failure.
[  688.281481] name failslab, interval 1, probability 0, space 0, times 0
[  688.292724] CPU: 1 PID: 4774 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  688.299804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  688.309139] Call Trace:
[  688.311719]  dump_stack+0x1c9/0x2b4
[  688.315338]  ? dump_stack_print_info.cold.2+0x52/0x52
[  688.320511]  ? save_stack+0x43/0xd0
[  688.324121]  ? kasan_kmalloc+0xc4/0xe0
[  688.327989]  ? kasan_slab_alloc+0x12/0x20
[  688.332121]  ? kmem_cache_alloc+0x12e/0x760
[  688.336425]  ? copy_creds+0x7b/0x470
[  688.340122]  should_fail.cold.4+0xa/0x1a
[  688.344180]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  688.349274]  ? find_held_lock+0x36/0x1c0
[  688.353333]  ? find_held_lock+0x36/0x1c0
[  688.357383]  ? check_same_owner+0x340/0x340
[  688.361696]  ? rcu_is_watching+0x8c/0x150
[  688.365826]  ? rcu_note_context_switch+0x730/0x730
[  688.370739]  ? security_prepare_creds+0x94/0xc0
[  688.375392]  __should_failslab+0x124/0x180
[  688.379613]  should_failslab+0x9/0x14
[  688.383402]  kmem_cache_alloc+0x2af/0x760
[  688.387538]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  688.392545]  __delayacct_tsk_init+0x20/0x80
[  688.396850]  copy_process.part.39+0x2ba8/0x7250
[  688.401502]  ? __lock_acquire+0x7fc/0x5020
[  688.405727]  ? __lock_acquire+0x7fc/0x5020
[  688.409954]  ? __lock_acquire+0x7fc/0x5020
[  688.414179]  ? __cleanup_sighand+0x70/0x70
[  688.418394]  ? debug_check_no_locks_freed+0x310/0x310
[  688.423568]  ? debug_check_no_locks_freed+0x310/0x310
[  688.428737]  ? print_usage_bug+0xc0/0xc0
[  688.432783]  ? print_usage_bug+0xc0/0xc0
[  688.436826]  ? d_splice_alias+0x7c9/0x11f0
[  688.441046]  ? lock_downgrade+0x8f0/0x8f0
[  688.445176]  ? d_instantiate_anon+0x30/0x30
[  688.449481]  ? __lock_acquire+0x7fc/0x5020
[  688.453702]  ? print_usage_bug+0xc0/0xc0
[  688.457752]  ? debug_check_no_locks_freed+0x310/0x310
[  688.462928]  ? debug_check_no_locks_freed+0x310/0x310
[  688.468098]  ? __lock_acquire+0x7fc/0x5020
[  688.472314]  ? print_usage_bug+0xc0/0xc0
[  688.476353]  ? lock_downgrade+0x8f0/0x8f0
[  688.480485]  ? debug_check_no_locks_freed+0x310/0x310
[  688.485656]  ? print_usage_bug+0xc0/0xc0
[  688.489696]  ? graph_lock+0x170/0x170
[  688.493477]  ? do_raw_spin_lock+0xc1/0x200
[  688.497697]  ? graph_lock+0x170/0x170
[  688.501482]  ? graph_lock+0x170/0x170
[  688.505269]  ? find_held_lock+0x36/0x1c0
[  688.509312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.514834]  ? _parse_integer+0x13b/0x190
[  688.518966]  ? graph_lock+0x170/0x170
[  688.522753]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  688.528273]  ? _kstrtoull+0x188/0x250
[  688.532058]  ? _parse_integer+0x190/0x190
[  688.536189]  ? graph_lock+0x170/0x170
[  688.539970]  ? lock_release+0xa30/0xa30
[  688.543929]  ? find_held_lock+0x36/0x1c0
[  688.547977]  ? lock_downgrade+0x8f0/0x8f0
[  688.552108]  ? kasan_check_read+0x11/0x20
[  688.556233]  ? rcu_is_watching+0x8c/0x150
[  688.560361]  ? pid_task+0x115/0x200
[  688.563967]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  688.568360]  ? save_stack+0xa9/0xd0
[  688.571969]  ? graph_lock+0x170/0x170
[  688.575767]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  688.581287]  ? proc_fail_nth_write+0x9e/0x210
[  688.585762]  ? proc_cwd_link+0x1d0/0x1d0
[  688.589807]  ? kasan_check_read+0x11/0x20
[  688.593937]  ? find_held_lock+0x36/0x1c0
[  688.597983]  _do_fork+0x291/0x12a0
[  688.601516]  ? fork_idle+0x1a0/0x1a0
[  688.605211]  ? __lock_is_held+0xb5/0x140
[  688.609260]  ? __sb_end_write+0xac/0xe0
[  688.613221]  ? vfs_write+0x2a8/0x560
[  688.616917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.622445]  ? ksys_write+0x1ae/0x260
[  688.626226]  ? __ia32_sys_read+0xb0/0xb0
[  688.630285]  ? syscall_slow_exit_work+0x500/0x500
[  688.635112]  __x64_sys_clone+0xbf/0x150
[  688.639068]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  688.644076]  do_syscall_64+0x1b9/0x820
[  688.647946]  ? syscall_return_slowpath+0x5e0/0x5e0
[  688.652857]  ? syscall_return_slowpath+0x31d/0x5e0
[  688.657773]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  688.663129]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  688.667959]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  688.673130] RIP: 0033:0x441519
[  688.676298] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  688.695476] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  688.703185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  688.710438] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  688.717688] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  688.724945] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  688.732194] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  688.747813] FAULT_INJECTION: forcing a failure.
[  688.747813] name failslab, interval 1, probability 0, space 0, times 0
[  688.759060] CPU: 1 PID: 4776 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  688.766141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  688.775471] Call Trace:
[  688.778051]  dump_stack+0x1c9/0x2b4
[  688.781663]  ? dump_stack_print_info.cold.2+0x52/0x52
[  688.786836]  ? save_stack+0x43/0xd0
[  688.790440]  ? kasan_kmalloc+0xc4/0xe0
[  688.794309]  ? kasan_slab_alloc+0x12/0x20
[  688.798451]  ? kmem_cache_alloc+0x12e/0x760
[  688.802757]  ? copy_creds+0x7b/0x470
[  688.806458]  should_fail.cold.4+0xa/0x1a
[  688.810516]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  688.815602]  ? lock_downgrade+0x8f0/0x8f0
[  688.819745]  ? find_held_lock+0x36/0x1c0
[  688.823795]  ? check_same_owner+0x340/0x340
[  688.828099]  ? rcu_note_context_switch+0x730/0x730
[  688.833013]  ? security_prepare_creds+0x94/0xc0
[  688.837671]  __should_failslab+0x124/0x180
[  688.841895]  should_failslab+0x9/0x14
[  688.845683]  kmem_cache_alloc+0x2af/0x760
[  688.849821]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  688.854820]  __delayacct_tsk_init+0x20/0x80
[  688.859132]  copy_process.part.39+0x2ba8/0x7250
[  688.863784]  ? __lock_acquire+0x7fc/0x5020
[  688.868012]  ? __lock_acquire+0x7fc/0x5020
[  688.872242]  ? __lock_acquire+0x7fc/0x5020
[  688.876466]  ? __cleanup_sighand+0x70/0x70
[  688.880693]  ? debug_check_no_locks_freed+0x310/0x310
[  688.885874]  ? debug_check_no_locks_freed+0x310/0x310
[  688.891053]  ? print_usage_bug+0xc0/0xc0
[  688.895109]  ? print_usage_bug+0xc0/0xc0
[  688.899162]  ? d_splice_alias+0x7c9/0x11f0
[  688.903377]  ? lock_downgrade+0x8f0/0x8f0
[  688.907508]  ? d_instantiate_anon+0x30/0x30
[  688.911811]  ? __lock_acquire+0x7fc/0x5020
[  688.916040]  ? print_usage_bug+0xc0/0xc0
[  688.920085]  ? debug_check_no_locks_freed+0x310/0x310
[  688.925271]  ? debug_check_no_locks_freed+0x310/0x310
[  688.930451]  ? __lock_acquire+0x7fc/0x5020
[  688.934664]  ? print_usage_bug+0xc0/0xc0
[  688.938714]  ? lock_downgrade+0x8f0/0x8f0
[  688.942847]  ? debug_check_no_locks_freed+0x310/0x310
[  688.948027]  ? print_usage_bug+0xc0/0xc0
[  688.952083]  ? graph_lock+0x170/0x170
[  688.955864]  ? do_raw_spin_lock+0xc1/0x200
[  688.960088]  ? graph_lock+0x170/0x170
[  688.963871]  ? graph_lock+0x170/0x170
[  688.967654]  ? find_held_lock+0x36/0x1c0
[  688.971706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.977225]  ? _parse_integer+0x13b/0x190
[  688.981353]  ? graph_lock+0x170/0x170
[  688.985134]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  688.990660]  ? _kstrtoull+0x188/0x250
[  688.994443]  ? _parse_integer+0x190/0x190
[  688.998583]  ? graph_lock+0x170/0x170
[  689.002364]  ? lock_release+0xa30/0xa30
[  689.006329]  ? find_held_lock+0x36/0x1c0
[  689.010379]  ? lock_downgrade+0x8f0/0x8f0
[  689.014512]  ? kasan_check_read+0x11/0x20
[  689.018638]  ? rcu_is_watching+0x8c/0x150
[  689.022765]  ? pid_task+0x115/0x200
[  689.026371]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  689.030761]  ? save_stack+0xa9/0xd0
[  689.034368]  ? graph_lock+0x170/0x170
[  689.038160]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  689.043680]  ? proc_fail_nth_write+0x9e/0x210
[  689.048154]  ? proc_cwd_link+0x1d0/0x1d0
[  689.052198]  ? kasan_check_read+0x11/0x20
[  689.056337]  ? find_held_lock+0x36/0x1c0
[  689.060383]  _do_fork+0x291/0x12a0
[  689.063911]  ? fork_idle+0x1a0/0x1a0
[  689.067609]  ? __lock_is_held+0xb5/0x140
[  689.071654]  ? __sb_end_write+0xac/0xe0
[  689.075608]  ? vfs_write+0x2a8/0x560
[  689.079318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.084846]  ? ksys_write+0x1ae/0x260
[  689.088627]  ? __ia32_sys_read+0xb0/0xb0
[  689.092669]  ? syscall_slow_exit_work+0x500/0x500
[  689.097504]  __x64_sys_clone+0xbf/0x150
[  689.101457]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  689.106457]  do_syscall_64+0x1b9/0x820
[  689.110329]  ? syscall_return_slowpath+0x5e0/0x5e0
[  689.115238]  ? syscall_return_slowpath+0x31d/0x5e0
[  689.120158]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  689.125528]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  689.130374]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  689.135545] RIP: 0033:0x441519
[  689.138713] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  689.157888] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  689.165579] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  689.172836] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  689.180094] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  689.187342] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  689.194969] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  689.206790] FAULT_INJECTION: forcing a failure.
[  689.206790] name failslab, interval 1, probability 0, space 0, times 0
[  689.218059] CPU: 1 PID: 4778 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  689.225156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  689.234495] Call Trace:
[  689.237070]  dump_stack+0x1c9/0x2b4
[  689.240677]  ? dump_stack_print_info.cold.2+0x52/0x52
[  689.245848]  ? save_stack+0x43/0xd0
[  689.249454]  ? kasan_kmalloc+0xc4/0xe0
[  689.253324]  ? kasan_slab_alloc+0x12/0x20
[  689.257447]  ? kmem_cache_alloc+0x12e/0x760
[  689.261764]  ? copy_creds+0x7b/0x470
[  689.265466]  should_fail.cold.4+0xa/0x1a
[  689.269510]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  689.274598]  ? find_held_lock+0x36/0x1c0
[  689.278645]  ? find_held_lock+0x36/0x1c0
[  689.282697]  ? check_same_owner+0x340/0x340
[  689.286999]  ? rcu_is_watching+0x8c/0x150
[  689.291132]  ? rcu_note_context_switch+0x730/0x730
[  689.296047]  ? security_prepare_creds+0x94/0xc0
[  689.300698]  __should_failslab+0x124/0x180
[  689.304915]  should_failslab+0x9/0x14
[  689.308697]  kmem_cache_alloc+0x2af/0x760
[  689.312830]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  689.317831]  __delayacct_tsk_init+0x20/0x80
[  689.322150]  copy_process.part.39+0x2ba8/0x7250
[  689.326802]  ? __lock_acquire+0x7fc/0x5020
[  689.331036]  ? __lock_acquire+0x7fc/0x5020
[  689.335254]  ? __lock_acquire+0x7fc/0x5020
[  689.339478]  ? __cleanup_sighand+0x70/0x70
[  689.343705]  ? debug_check_no_locks_freed+0x310/0x310
[  689.348875]  ? debug_check_no_locks_freed+0x310/0x310
[  689.354055]  ? print_usage_bug+0xc0/0xc0
[  689.358115]  ? print_usage_bug+0xc0/0xc0
[  689.362155]  ? d_splice_alias+0x7c9/0x11f0
[  689.366372]  ? lock_downgrade+0x8f0/0x8f0
[  689.370499]  ? d_instantiate_anon+0x30/0x30
[  689.374802]  ? __lock_acquire+0x7fc/0x5020
[  689.379031]  ? print_usage_bug+0xc0/0xc0
[  689.383086]  ? debug_check_no_locks_freed+0x310/0x310
[  689.388259]  ? debug_check_no_locks_freed+0x310/0x310
[  689.393430]  ? __lock_acquire+0x7fc/0x5020
[  689.397649]  ? print_usage_bug+0xc0/0xc0
[  689.401693]  ? lock_downgrade+0x8f0/0x8f0
[  689.405838]  ? debug_check_no_locks_freed+0x310/0x310
[  689.411028]  ? print_usage_bug+0xc0/0xc0
[  689.415078]  ? graph_lock+0x170/0x170
[  689.418863]  ? do_raw_spin_lock+0xc1/0x200
[  689.423082]  ? graph_lock+0x170/0x170
[  689.426862]  ? graph_lock+0x170/0x170
[  689.430645]  ? find_held_lock+0x36/0x1c0
[  689.434687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.440216]  ? _parse_integer+0x13b/0x190
[  689.444346]  ? graph_lock+0x170/0x170
[  689.448127]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  689.453643]  ? _kstrtoull+0x188/0x250
[  689.457432]  ? _parse_integer+0x190/0x190
[  689.461560]  ? graph_lock+0x170/0x170
[  689.465342]  ? lock_release+0xa30/0xa30
[  689.469295]  ? find_held_lock+0x36/0x1c0
[  689.473341]  ? lock_downgrade+0x8f0/0x8f0
[  689.477470]  ? kasan_check_read+0x11/0x20
[  689.481597]  ? rcu_is_watching+0x8c/0x150
[  689.485725]  ? pid_task+0x115/0x200
[  689.489328]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  689.493717]  ? save_stack+0xa9/0xd0
[  689.497326]  ? graph_lock+0x170/0x170
[  689.501107]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  689.506624]  ? proc_fail_nth_write+0x9e/0x210
[  689.511101]  ? proc_cwd_link+0x1d0/0x1d0
[  689.515155]  ? kasan_check_read+0x11/0x20
[  689.519284]  ? find_held_lock+0x36/0x1c0
[  689.523326]  _do_fork+0x291/0x12a0
[  689.526851]  ? fork_idle+0x1a0/0x1a0
[  689.530546]  ? __lock_is_held+0xb5/0x140
[  689.534592]  ? __sb_end_write+0xac/0xe0
[  689.538542]  ? vfs_write+0x2a8/0x560
[  689.542243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.547758]  ? ksys_write+0x1ae/0x260
[  689.551549]  ? __ia32_sys_read+0xb0/0xb0
[  689.555605]  ? syscall_slow_exit_work+0x500/0x500
[  689.560433]  __x64_sys_clone+0xbf/0x150
[  689.564391]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  689.569389]  do_syscall_64+0x1b9/0x820
[  689.573254]  ? syscall_return_slowpath+0x5e0/0x5e0
[  689.578178]  ? syscall_return_slowpath+0x31d/0x5e0
[  689.583094]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  689.588444]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  689.593268]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  689.598439] RIP: 0033:0x441519
[  689.601602] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  689.620796] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  689.628484] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  689.635734] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  689.642983] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  689.650241] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  689.657494] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  689.669932] FAULT_INJECTION: forcing a failure.
[  689.669932] name failslab, interval 1, probability 0, space 0, times 0
[  689.681255] CPU: 1 PID: 4780 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  689.688341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  689.697673] Call Trace:
[  689.700246]  dump_stack+0x1c9/0x2b4
[  689.703864]  ? dump_stack_print_info.cold.2+0x52/0x52
[  689.709041]  ? save_stack+0x43/0xd0
[  689.712664]  ? kasan_kmalloc+0xc4/0xe0
[  689.716543]  ? kasan_slab_alloc+0x12/0x20
[  689.720671]  ? kmem_cache_alloc+0x12e/0x760
[  689.724973]  ? copy_creds+0x7b/0x470
[  689.728675]  should_fail.cold.4+0xa/0x1a
[  689.732720]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  689.737806]  ? find_held_lock+0x36/0x1c0
[  689.741854]  ? find_held_lock+0x36/0x1c0
[  689.745906]  ? check_same_owner+0x340/0x340
[  689.750219]  ? rcu_is_watching+0x8c/0x150
[  689.754356]  ? rcu_note_context_switch+0x730/0x730
[  689.759270]  ? security_prepare_creds+0x94/0xc0
[  689.763936]  __should_failslab+0x124/0x180
[  689.768169]  should_failslab+0x9/0x14
[  689.771949]  kmem_cache_alloc+0x2af/0x760
[  689.776086]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  689.781096]  __delayacct_tsk_init+0x20/0x80
[  689.785398]  copy_process.part.39+0x2ba8/0x7250
[  689.790055]  ? __lock_acquire+0x7fc/0x5020
[  689.794274]  ? __lock_acquire+0x7fc/0x5020
[  689.798487]  ? __lock_acquire+0x7fc/0x5020
[  689.802707]  ? __cleanup_sighand+0x70/0x70
[  689.806924]  ? debug_check_no_locks_freed+0x310/0x310
[  689.812092]  ? debug_check_no_locks_freed+0x310/0x310
[  689.817260]  ? print_usage_bug+0xc0/0xc0
[  689.821305]  ? print_usage_bug+0xc0/0xc0
[  689.825348]  ? d_splice_alias+0x7c9/0x11f0
[  689.829560]  ? lock_downgrade+0x8f0/0x8f0
[  689.833689]  ? d_instantiate_anon+0x30/0x30
[  689.837994]  ? __lock_acquire+0x7fc/0x5020
[  689.842216]  ? print_usage_bug+0xc0/0xc0
[  689.846260]  ? debug_check_no_locks_freed+0x310/0x310
[  689.851522]  ? debug_check_no_locks_freed+0x310/0x310
[  689.856702]  ? __lock_acquire+0x7fc/0x5020
[  689.860920]  ? print_usage_bug+0xc0/0xc0
[  689.864961]  ? lock_downgrade+0x8f0/0x8f0
[  689.869091]  ? debug_check_no_locks_freed+0x310/0x310
[  689.874263]  ? print_usage_bug+0xc0/0xc0
[  689.878303]  ? graph_lock+0x170/0x170
[  689.882098]  ? do_raw_spin_lock+0xc1/0x200
[  689.886313]  ? graph_lock+0x170/0x170
[  689.890094]  ? graph_lock+0x170/0x170
[  689.893878]  ? find_held_lock+0x36/0x1c0
[  689.897919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.903435]  ? _parse_integer+0x13b/0x190
[  689.907564]  ? graph_lock+0x170/0x170
[  689.911358]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  689.916876]  ? _kstrtoull+0x188/0x250
[  689.920657]  ? _parse_integer+0x190/0x190
[  689.924787]  ? graph_lock+0x170/0x170
[  689.928566]  ? lock_release+0xa30/0xa30
[  689.932530]  ? find_held_lock+0x36/0x1c0
[  689.936586]  ? lock_downgrade+0x8f0/0x8f0
[  689.940719]  ? kasan_check_read+0x11/0x20
[  689.944844]  ? rcu_is_watching+0x8c/0x150
[  689.948971]  ? pid_task+0x115/0x200
[  689.952575]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  689.956965]  ? save_stack+0xa9/0xd0
[  689.960576]  ? graph_lock+0x170/0x170
[  689.964361]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  689.969878]  ? proc_fail_nth_write+0x9e/0x210
[  689.974351]  ? proc_cwd_link+0x1d0/0x1d0
[  689.978424]  ? kasan_check_read+0x11/0x20
[  689.982553]  ? find_held_lock+0x36/0x1c0
[  689.986600]  _do_fork+0x291/0x12a0
[  689.990124]  ? fork_idle+0x1a0/0x1a0
[  689.993820]  ? __lock_is_held+0xb5/0x140
[  689.997869]  ? __sb_end_write+0xac/0xe0
[  690.001824]  ? vfs_write+0x2a8/0x560
[  690.005535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.011054]  ? ksys_write+0x1ae/0x260
[  690.014847]  ? __ia32_sys_read+0xb0/0xb0
[  690.018901]  ? syscall_slow_exit_work+0x500/0x500
[  690.023730]  __x64_sys_clone+0xbf/0x150
[  690.027687]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  690.032696]  do_syscall_64+0x1b9/0x820
[  690.036582]  ? syscall_return_slowpath+0x5e0/0x5e0
[  690.041500]  ? syscall_return_slowpath+0x31d/0x5e0
[  690.046420]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  690.051767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  690.056596]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  690.061767] RIP: 0033:0x441519
[  690.064933] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  690.084134] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  690.091824] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  690.099082] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  690.106338] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  690.113590] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  690.120839] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  690.133178] FAULT_INJECTION: forcing a failure.
[  690.133178] name failslab, interval 1, probability 0, space 0, times 0
[  690.144417] CPU: 1 PID: 4782 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  690.151496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  690.160836] Call Trace:
[  690.163412]  dump_stack+0x1c9/0x2b4
[  690.167031]  ? dump_stack_print_info.cold.2+0x52/0x52
[  690.172207]  ? save_stack+0x43/0xd0
[  690.175814]  ? kasan_kmalloc+0xc4/0xe0
[  690.179682]  ? kasan_slab_alloc+0x12/0x20
[  690.183813]  ? kmem_cache_alloc+0x12e/0x760
[  690.188116]  ? copy_creds+0x7b/0x470
[  690.191816]  should_fail.cold.4+0xa/0x1a
[  690.195863]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.200947]  ? find_held_lock+0x36/0x1c0
[  690.204998]  ? find_held_lock+0x36/0x1c0
[  690.209071]  ? check_same_owner+0x340/0x340
[  690.213376]  ? rcu_is_watching+0x8c/0x150
[  690.217515]  ? rcu_note_context_switch+0x730/0x730
[  690.222428]  ? security_prepare_creds+0x94/0xc0
[  690.227082]  __should_failslab+0x124/0x180
[  690.231304]  should_failslab+0x9/0x14
[  690.235087]  kmem_cache_alloc+0x2af/0x760
[  690.239223]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  690.244236]  __delayacct_tsk_init+0x20/0x80
[  690.248540]  copy_process.part.39+0x2ba8/0x7250
[  690.253192]  ? __lock_acquire+0x7fc/0x5020
[  690.257411]  ? __lock_acquire+0x7fc/0x5020
[  690.261627]  ? __lock_acquire+0x7fc/0x5020
[  690.265851]  ? __cleanup_sighand+0x70/0x70
[  690.270072]  ? debug_check_no_locks_freed+0x310/0x310
[  690.275257]  ? debug_check_no_locks_freed+0x310/0x310
[  690.280432]  ? print_usage_bug+0xc0/0xc0
[  690.284478]  ? print_usage_bug+0xc0/0xc0
[  690.288530]  ? d_splice_alias+0x7c9/0x11f0
[  690.292756]  ? lock_downgrade+0x8f0/0x8f0
[  690.296887]  ? d_instantiate_anon+0x30/0x30
[  690.301193]  ? __lock_acquire+0x7fc/0x5020
[  690.305410]  ? print_usage_bug+0xc0/0xc0
[  690.309455]  ? debug_check_no_locks_freed+0x310/0x310
[  690.314631]  ? debug_check_no_locks_freed+0x310/0x310
[  690.319806]  ? __lock_acquire+0x7fc/0x5020
[  690.324033]  ? print_usage_bug+0xc0/0xc0
[  690.328094]  ? lock_downgrade+0x8f0/0x8f0
[  690.332232]  ? debug_check_no_locks_freed+0x310/0x310
[  690.337409]  ? print_usage_bug+0xc0/0xc0
[  690.341452]  ? graph_lock+0x170/0x170
[  690.345231]  ? do_raw_spin_lock+0xc1/0x200
[  690.349446]  ? graph_lock+0x170/0x170
[  690.353240]  ? graph_lock+0x170/0x170
[  690.357050]  ? find_held_lock+0x36/0x1c0
[  690.361113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.366636]  ? _parse_integer+0x13b/0x190
[  690.370769]  ? graph_lock+0x170/0x170
[  690.374553]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  690.380088]  ? _kstrtoull+0x188/0x250
[  690.383872]  ? _parse_integer+0x190/0x190
[  690.388001]  ? graph_lock+0x170/0x170
[  690.391810]  ? lock_release+0xa30/0xa30
[  690.395768]  ? find_held_lock+0x36/0x1c0
[  690.399825]  ? lock_downgrade+0x8f0/0x8f0
[  690.403961]  ? kasan_check_read+0x11/0x20
[  690.408092]  ? rcu_is_watching+0x8c/0x150
[  690.412223]  ? pid_task+0x115/0x200
[  690.415833]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  690.420224]  ? save_stack+0xa9/0xd0
[  690.423835]  ? graph_lock+0x170/0x170
[  690.427626]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  690.433164]  ? proc_fail_nth_write+0x9e/0x210
[  690.437649]  ? proc_cwd_link+0x1d0/0x1d0
[  690.441702]  ? kasan_check_read+0x11/0x20
[  690.445837]  ? find_held_lock+0x36/0x1c0
[  690.449884]  _do_fork+0x291/0x12a0
[  690.453408]  ? fork_idle+0x1a0/0x1a0
[  690.457110]  ? __lock_is_held+0xb5/0x140
[  690.461173]  ? __sb_end_write+0xac/0xe0
[  690.465138]  ? vfs_write+0x2a8/0x560
[  690.468856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.474388]  ? ksys_write+0x1ae/0x260
[  690.478174]  ? __ia32_sys_read+0xb0/0xb0
[  690.482227]  ? syscall_slow_exit_work+0x500/0x500
[  690.487062]  __x64_sys_clone+0xbf/0x150
[  690.491029]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  690.496044]  do_syscall_64+0x1b9/0x820
[  690.499915]  ? syscall_return_slowpath+0x5e0/0x5e0
[  690.504828]  ? syscall_return_slowpath+0x31d/0x5e0
[  690.509748]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  690.515102]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  690.519940]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  690.525108] RIP: 0033:0x441519
executing program
[  690.528275] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  690.547448] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  690.555152] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  690.562402] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  690.569649] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  690.576899] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  690.584147] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  690.595991] FAULT_INJECTION: forcing a failure.
[  690.595991] name failslab, interval 1, probability 0, space 0, times 0
[  690.607242] CPU: 1 PID: 4784 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  690.614328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  690.623664] Call Trace:
[  690.626242]  dump_stack+0x1c9/0x2b4
[  690.629852]  ? dump_stack_print_info.cold.2+0x52/0x52
[  690.635033]  ? save_stack+0x43/0xd0
[  690.638648]  ? kasan_kmalloc+0xc4/0xe0
[  690.642535]  ? kasan_slab_alloc+0x12/0x20
[  690.646684]  ? kmem_cache_alloc+0x12e/0x760
[  690.650990]  ? copy_creds+0x7b/0x470
[  690.654697]  should_fail.cold.4+0xa/0x1a
[  690.658742]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.663849]  ? find_held_lock+0x36/0x1c0
[  690.667899]  ? find_held_lock+0x36/0x1c0
[  690.671948]  ? check_same_owner+0x340/0x340
[  690.676248]  ? rcu_is_watching+0x8c/0x150
[  690.680385]  ? rcu_note_context_switch+0x730/0x730
[  690.685306]  ? security_prepare_creds+0x94/0xc0
[  690.689958]  __should_failslab+0x124/0x180
[  690.694173]  should_failslab+0x9/0x14
[  690.697955]  kmem_cache_alloc+0x2af/0x760
[  690.702083]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  690.707088]  __delayacct_tsk_init+0x20/0x80
[  690.711391]  copy_process.part.39+0x2ba8/0x7250
[  690.716046]  ? __lock_acquire+0x7fc/0x5020
[  690.720265]  ? __lock_acquire+0x7fc/0x5020
[  690.724482]  ? __lock_acquire+0x7fc/0x5020
[  690.728707]  ? __cleanup_sighand+0x70/0x70
[  690.732931]  ? debug_check_no_locks_freed+0x310/0x310
[  690.738102]  ? debug_check_no_locks_freed+0x310/0x310
[  690.743275]  ? print_usage_bug+0xc0/0xc0
[  690.747316]  ? print_usage_bug+0xc0/0xc0
[  690.751361]  ? d_splice_alias+0x7c9/0x11f0
[  690.755576]  ? lock_downgrade+0x8f0/0x8f0
[  690.759703]  ? d_instantiate_anon+0x30/0x30
[  690.764011]  ? __lock_acquire+0x7fc/0x5020
[  690.768234]  ? print_usage_bug+0xc0/0xc0
[  690.772276]  ? debug_check_no_locks_freed+0x310/0x310
[  690.777458]  ? debug_check_no_locks_freed+0x310/0x310
[  690.782662]  ? __lock_acquire+0x7fc/0x5020
[  690.786899]  ? print_usage_bug+0xc0/0xc0
[  690.790951]  ? lock_downgrade+0x8f0/0x8f0
[  690.795100]  ? debug_check_no_locks_freed+0x310/0x310
[  690.800287]  ? print_usage_bug+0xc0/0xc0
[  690.804356]  ? graph_lock+0x170/0x170
[  690.808142]  ? do_raw_spin_lock+0xc1/0x200
[  690.812358]  ? graph_lock+0x170/0x170
[  690.816140]  ? graph_lock+0x170/0x170
[  690.819927]  ? find_held_lock+0x36/0x1c0
[  690.823971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.829493]  ? _parse_integer+0x13b/0x190
[  690.833624]  ? graph_lock+0x170/0x170
[  690.837408]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  690.842924]  ? _kstrtoull+0x188/0x250
[  690.846705]  ? _parse_integer+0x190/0x190
[  690.850833]  ? graph_lock+0x170/0x170
[  690.854613]  ? lock_release+0xa30/0xa30
[  690.858568]  ? find_held_lock+0x36/0x1c0
[  690.862626]  ? lock_downgrade+0x8f0/0x8f0
[  690.866761]  ? kasan_check_read+0x11/0x20
[  690.870888]  ? rcu_is_watching+0x8c/0x150
[  690.875023]  ? pid_task+0x115/0x200
[  690.878653]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  690.883060]  ? save_stack+0xa9/0xd0
[  690.886687]  ? graph_lock+0x170/0x170
[  690.890484]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  690.896444]  ? proc_fail_nth_write+0x9e/0x210
[  690.900923]  ? proc_cwd_link+0x1d0/0x1d0
[  690.904968]  ? kasan_check_read+0x11/0x20
[  690.909102]  ? find_held_lock+0x36/0x1c0
[  690.913160]  _do_fork+0x291/0x12a0
[  690.916692]  ? fork_idle+0x1a0/0x1a0
[  690.920398]  ? __lock_is_held+0xb5/0x140
[  690.924446]  ? __sb_end_write+0xac/0xe0
[  690.928419]  ? vfs_write+0x2a8/0x560
[  690.932126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.937651]  ? ksys_write+0x1ae/0x260
[  690.941435]  ? __ia32_sys_read+0xb0/0xb0
[  690.945478]  ? syscall_slow_exit_work+0x500/0x500
[  690.950304]  __x64_sys_clone+0xbf/0x150
[  690.954276]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  690.959275]  do_syscall_64+0x1b9/0x820
[  690.963145]  ? syscall_return_slowpath+0x5e0/0x5e0
[  690.968057]  ? syscall_return_slowpath+0x31d/0x5e0
[  690.972975]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  690.978340]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  690.983177]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  690.988351] RIP: 0033:0x441519
[  690.991517] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  691.010689] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  691.018380] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  691.025640] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  691.032890] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  691.040139] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
executing program
[  691.047394] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  691.060100] FAULT_INJECTION: forcing a failure.
[  691.060100] name failslab, interval 1, probability 0, space 0, times 0
[  691.071366] CPU: 1 PID: 4786 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  691.078444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  691.087776] Call Trace:
[  691.090351]  dump_stack+0x1c9/0x2b4
[  691.093961]  ? dump_stack_print_info.cold.2+0x52/0x52
[  691.099132]  ? save_stack+0x43/0xd0
[  691.102741]  ? kasan_kmalloc+0xc4/0xe0
[  691.106609]  ? kasan_slab_alloc+0x12/0x20
[  691.110736]  ? kmem_cache_alloc+0x12e/0x760
[  691.115043]  ? copy_creds+0x7b/0x470
[  691.118748]  should_fail.cold.4+0xa/0x1a
[  691.122802]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  691.127898]  ? find_held_lock+0x36/0x1c0
[  691.131945]  ? find_held_lock+0x36/0x1c0
[  691.135996]  ? check_same_owner+0x340/0x340
[  691.140300]  ? rcu_is_watching+0x8c/0x150
[  691.144441]  ? rcu_note_context_switch+0x730/0x730
[  691.149358]  ? security_prepare_creds+0x94/0xc0
[  691.154029]  __should_failslab+0x124/0x180
[  691.158255]  should_failslab+0x9/0x14
[  691.162045]  kmem_cache_alloc+0x2af/0x760
[  691.166180]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  691.171182]  __delayacct_tsk_init+0x20/0x80
[  691.175486]  copy_process.part.39+0x2ba8/0x7250
[  691.180140]  ? __lock_acquire+0x7fc/0x5020
[  691.184367]  ? __lock_acquire+0x7fc/0x5020
[  691.188591]  ? __lock_acquire+0x7fc/0x5020
[  691.192814]  ? __cleanup_sighand+0x70/0x70
[  691.197042]  ? debug_check_no_locks_freed+0x310/0x310
[  691.202778]  ? debug_check_no_locks_freed+0x310/0x310
[  691.207950]  ? print_usage_bug+0xc0/0xc0
[  691.211993]  ? print_usage_bug+0xc0/0xc0
[  691.216050]  ? d_splice_alias+0x7c9/0x11f0
[  691.220270]  ? lock_downgrade+0x8f0/0x8f0
[  691.224410]  ? d_instantiate_anon+0x30/0x30
[  691.235951]  ? __lock_acquire+0x7fc/0x5020
[  691.240172]  ? print_usage_bug+0xc0/0xc0
[  691.244238]  ? debug_check_no_locks_freed+0x310/0x310
[  691.249432]  ? debug_check_no_locks_freed+0x310/0x310
[  691.254618]  ? __lock_acquire+0x7fc/0x5020
[  691.258836]  ? print_usage_bug+0xc0/0xc0
[  691.262880]  ? lock_downgrade+0x8f0/0x8f0
[  691.267028]  ? debug_check_no_locks_freed+0x310/0x310
[  691.272229]  ? print_usage_bug+0xc0/0xc0
[  691.276285]  ? graph_lock+0x170/0x170
[  691.280087]  ? do_raw_spin_lock+0xc1/0x200
[  691.284319]  ? graph_lock+0x170/0x170
[  691.288101]  ? graph_lock+0x170/0x170
[  691.291888]  ? find_held_lock+0x36/0x1c0
[  691.295931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.301451]  ? _parse_integer+0x13b/0x190
[  691.305582]  ? graph_lock+0x170/0x170
[  691.309365]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  691.316018]  ? _kstrtoull+0x188/0x250
[  691.319810]  ? _parse_integer+0x190/0x190
[  691.323940]  ? graph_lock+0x170/0x170
[  691.327721]  ? lock_release+0xa30/0xa30
[  691.331690]  ? find_held_lock+0x36/0x1c0
[  691.335739]  ? lock_downgrade+0x8f0/0x8f0
[  691.339874]  ? kasan_check_read+0x11/0x20
[  691.344004]  ? rcu_is_watching+0x8c/0x150
[  691.348143]  ? pid_task+0x115/0x200
[  691.351750]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  691.356154]  ? save_stack+0xa9/0xd0
[  691.359765]  ? graph_lock+0x170/0x170
[  691.363551]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  691.369068]  ? proc_fail_nth_write+0x9e/0x210
[  691.373557]  ? proc_cwd_link+0x1d0/0x1d0
[  691.377600]  ? kasan_check_read+0x11/0x20
[  691.381729]  ? find_held_lock+0x36/0x1c0
[  691.385776]  _do_fork+0x291/0x12a0
[  691.389306]  ? fork_idle+0x1a0/0x1a0
[  691.393003]  ? __lock_is_held+0xb5/0x140
[  691.397061]  ? __sb_end_write+0xac/0xe0
[  691.401022]  ? vfs_write+0x2a8/0x560
[  691.404741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.410258]  ? ksys_write+0x1ae/0x260
[  691.414046]  ? __ia32_sys_read+0xb0/0xb0
[  691.418115]  __x64_sys_clone+0xbf/0x150
[  691.422074]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  691.427073]  do_syscall_64+0x1b9/0x820
[  691.430956]  ? syscall_return_slowpath+0x5e0/0x5e0
[  691.435876]  ? syscall_return_slowpath+0x31d/0x5e0
[  691.440812]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  691.446185]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.451020]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  691.456201] RIP: 0033:0x441519
[  691.459370] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  691.478542] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  691.486409] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  691.493668] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  691.500919] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  691.508182] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  691.515431] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  691.527384] FAULT_INJECTION: forcing a failure.
[  691.527384] name failslab, interval 1, probability 0, space 0, times 0
[  691.538628] CPU: 0 PID: 4788 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  691.545731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  691.555067] Call Trace:
[  691.557643]  dump_stack+0x1c9/0x2b4
[  691.561340]  ? dump_stack_print_info.cold.2+0x52/0x52
[  691.566528]  ? save_stack+0x43/0xd0
[  691.570135]  ? kasan_kmalloc+0xc4/0xe0
[  691.574006]  ? kasan_slab_alloc+0x12/0x20
[  691.578143]  ? kmem_cache_alloc+0x12e/0x760
[  691.582457]  ? copy_creds+0x7b/0x470
[  691.586157]  should_fail.cold.4+0xa/0x1a
[  691.590203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  691.595299]  ? find_held_lock+0x36/0x1c0
[  691.599350]  ? find_held_lock+0x36/0x1c0
[  691.603416]  ? check_same_owner+0x340/0x340
[  691.607717]  ? rcu_is_watching+0x8c/0x150
[  691.611856]  ? rcu_note_context_switch+0x730/0x730
[  691.616776]  ? security_prepare_creds+0x94/0xc0
[  691.621429]  __should_failslab+0x124/0x180
[  691.625659]  should_failslab+0x9/0x14
[  691.629458]  kmem_cache_alloc+0x2af/0x760
[  691.633590]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  691.638609]  __delayacct_tsk_init+0x20/0x80
[  691.642924]  copy_process.part.39+0x2ba8/0x7250
[  691.647578]  ? __lock_acquire+0x7fc/0x5020
[  691.651797]  ? __lock_acquire+0x7fc/0x5020
[  691.656033]  ? __lock_acquire+0x7fc/0x5020
[  691.660263]  ? __cleanup_sighand+0x70/0x70
[  691.664479]  ? debug_check_no_locks_freed+0x310/0x310
[  691.669648]  ? debug_check_no_locks_freed+0x310/0x310
[  691.674816]  ? print_usage_bug+0xc0/0xc0
[  691.678861]  ? print_usage_bug+0xc0/0xc0
[  691.682904]  ? d_splice_alias+0x7c9/0x11f0
[  691.687122]  ? lock_downgrade+0x8f0/0x8f0
[  691.691264]  ? d_instantiate_anon+0x30/0x30
[  691.695569]  ? __lock_acquire+0x7fc/0x5020
[  691.699787]  ? print_usage_bug+0xc0/0xc0
[  691.703832]  ? debug_check_no_locks_freed+0x310/0x310
[  691.709024]  ? debug_check_no_locks_freed+0x310/0x310
[  691.714204]  ? __lock_acquire+0x7fc/0x5020
[  691.718420]  ? print_usage_bug+0xc0/0xc0
[  691.722472]  ? lock_downgrade+0x8f0/0x8f0
[  691.726616]  ? debug_check_no_locks_freed+0x310/0x310
[  691.731788]  ? print_usage_bug+0xc0/0xc0
[  691.735828]  ? graph_lock+0x170/0x170
[  691.739619]  ? do_raw_spin_lock+0xc1/0x200
[  691.743848]  ? graph_lock+0x170/0x170
[  691.747632]  ? graph_lock+0x170/0x170
[  691.751416]  ? find_held_lock+0x36/0x1c0
[  691.755459]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.760978]  ? _parse_integer+0x13b/0x190
[  691.765118]  ? graph_lock+0x170/0x170
[  691.768901]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  691.774418]  ? _kstrtoull+0x188/0x250
[  691.778197]  ? _parse_integer+0x190/0x190
[  691.782325]  ? graph_lock+0x170/0x170
[  691.786125]  ? lock_release+0xa30/0xa30
[  691.790100]  ? find_held_lock+0x36/0x1c0
[  691.794145]  ? lock_downgrade+0x8f0/0x8f0
[  691.798290]  ? kasan_check_read+0x11/0x20
[  691.802421]  ? rcu_is_watching+0x8c/0x150
[  691.806572]  ? pid_task+0x115/0x200
[  691.810180]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  691.814570]  ? save_stack+0xa9/0xd0
[  691.818188]  ? graph_lock+0x170/0x170
[  691.821980]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  691.827510]  ? proc_fail_nth_write+0x9e/0x210
[  691.831985]  ? proc_cwd_link+0x1d0/0x1d0
[  691.836035]  ? kasan_check_read+0x11/0x20
[  691.840178]  ? find_held_lock+0x36/0x1c0
[  691.844235]  _do_fork+0x291/0x12a0
[  691.847782]  ? fork_idle+0x1a0/0x1a0
[  691.851480]  ? __lock_is_held+0xb5/0x140
[  691.855543]  ? __sb_end_write+0xac/0xe0
[  691.859506]  ? vfs_write+0x2a8/0x560
[  691.863205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.868732]  ? ksys_write+0x1ae/0x260
[  691.872523]  ? __ia32_sys_read+0xb0/0xb0
[  691.876568]  ? syscall_slow_exit_work+0x500/0x500
[  691.881392]  __x64_sys_clone+0xbf/0x150
[  691.885348]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  691.890356]  do_syscall_64+0x1b9/0x820
[  691.894226]  ? syscall_return_slowpath+0x5e0/0x5e0
[  691.899138]  ? syscall_return_slowpath+0x31d/0x5e0
[  691.904057]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  691.909405]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.914232]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  691.919412] RIP: 0033:0x441519
[  691.922589] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  691.941797] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
executing program
[  691.949500] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  691.956762] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  691.964019] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  691.971277] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  691.978528] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  691.991322] FAULT_INJECTION: forcing a failure.
[  691.991322] name failslab, interval 1, probability 0, space 0, times 0
[  692.002653] CPU: 0 PID: 4790 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  692.009760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  692.019118] Call Trace:
[  692.021700]  dump_stack+0x1c9/0x2b4
[  692.025313]  ? dump_stack_print_info.cold.2+0x52/0x52
[  692.030486]  ? save_stack+0x43/0xd0
[  692.034106]  ? kasan_kmalloc+0xc4/0xe0
[  692.037976]  ? kasan_slab_alloc+0x12/0x20
[  692.042101]  ? kmem_cache_alloc+0x12e/0x760
[  692.046417]  ? copy_creds+0x7b/0x470
[  692.050116]  should_fail.cold.4+0xa/0x1a
[  692.054161]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.059249]  ? find_held_lock+0x36/0x1c0
[  692.063307]  ? find_held_lock+0x36/0x1c0
[  692.067367]  ? check_same_owner+0x340/0x340
[  692.071679]  ? rcu_is_watching+0x8c/0x150
[  692.075806]  ? rcu_note_context_switch+0x730/0x730
[  692.080752]  ? security_prepare_creds+0x94/0xc0
[  692.085407]  __should_failslab+0x124/0x180
[  692.089626]  should_failslab+0x9/0x14
[  692.093409]  kmem_cache_alloc+0x2af/0x760
[  692.097540]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  692.102542]  __delayacct_tsk_init+0x20/0x80
[  692.106848]  copy_process.part.39+0x2ba8/0x7250
[  692.111503]  ? __lock_acquire+0x7fc/0x5020
[  692.115745]  ? __lock_acquire+0x7fc/0x5020
[  692.119966]  ? __lock_acquire+0x7fc/0x5020
[  692.124189]  ? __cleanup_sighand+0x70/0x70
[  692.128408]  ? debug_check_no_locks_freed+0x310/0x310
[  692.133585]  ? debug_check_no_locks_freed+0x310/0x310
[  692.138772]  ? print_usage_bug+0xc0/0xc0
[  692.142818]  ? print_usage_bug+0xc0/0xc0
[  692.146877]  ? d_splice_alias+0x7c9/0x11f0
[  692.151113]  ? lock_downgrade+0x8f0/0x8f0
[  692.155243]  ? d_instantiate_anon+0x30/0x30
[  692.159550]  ? __lock_acquire+0x7fc/0x5020
[  692.163768]  ? print_usage_bug+0xc0/0xc0
[  692.167825]  ? debug_check_no_locks_freed+0x310/0x310
[  692.173013]  ? debug_check_no_locks_freed+0x310/0x310
[  692.178201]  ? __lock_acquire+0x7fc/0x5020
[  692.182427]  ? print_usage_bug+0xc0/0xc0
[  692.186472]  ? lock_downgrade+0x8f0/0x8f0
[  692.190607]  ? debug_check_no_locks_freed+0x310/0x310
[  692.195780]  ? print_usage_bug+0xc0/0xc0
[  692.199825]  ? graph_lock+0x170/0x170
[  692.203619]  ? do_raw_spin_lock+0xc1/0x200
[  692.207850]  ? graph_lock+0x170/0x170
[  692.211634]  ? graph_lock+0x170/0x170
[  692.215421]  ? find_held_lock+0x36/0x1c0
[  692.219487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.225017]  ? _parse_integer+0x13b/0x190
[  692.229151]  ? graph_lock+0x170/0x170
[  692.232934]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  692.238463]  ? _kstrtoull+0x188/0x250
[  692.242248]  ? _parse_integer+0x190/0x190
[  692.246386]  ? graph_lock+0x170/0x170
[  692.250168]  ? lock_release+0xa30/0xa30
[  692.254124]  ? find_held_lock+0x36/0x1c0
[  692.258172]  ? lock_downgrade+0x8f0/0x8f0
[  692.262305]  ? kasan_check_read+0x11/0x20
[  692.266433]  ? rcu_is_watching+0x8c/0x150
[  692.270576]  ? pid_task+0x115/0x200
[  692.274193]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  692.278584]  ? save_stack+0xa9/0xd0
[  692.282203]  ? graph_lock+0x170/0x170
[  692.285988]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  692.291511]  ? proc_fail_nth_write+0x9e/0x210
[  692.295988]  ? proc_cwd_link+0x1d0/0x1d0
[  692.300041]  ? kasan_check_read+0x11/0x20
[  692.304177]  ? find_held_lock+0x36/0x1c0
[  692.308232]  _do_fork+0x291/0x12a0
[  692.311758]  ? fork_idle+0x1a0/0x1a0
[  692.315456]  ? __lock_is_held+0xb5/0x140
[  692.319505]  ? __sb_end_write+0xac/0xe0
[  692.323461]  ? vfs_write+0x2a8/0x560
[  692.327160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.332676]  ? ksys_write+0x1ae/0x260
[  692.336459]  ? __ia32_sys_read+0xb0/0xb0
[  692.340506]  ? syscall_slow_exit_work+0x500/0x500
[  692.345336]  __x64_sys_clone+0xbf/0x150
[  692.349306]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  692.354305]  do_syscall_64+0x1b9/0x820
[  692.358184]  ? syscall_slow_exit_work+0x500/0x500
[  692.363442]  ? syscall_return_slowpath+0x5e0/0x5e0
[  692.368367]  ? syscall_return_slowpath+0x31d/0x5e0
[  692.373285]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  692.378648]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  692.383490]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  692.388678] RIP: 0033:0x441519
[  692.391847] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  692.411055] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  692.418750] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  692.426007] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  692.433279] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  692.440541] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  692.447796] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
executing program
[  692.461509] FAULT_INJECTION: forcing a failure.
[  692.461509] name failslab, interval 1, probability 0, space 0, times 0
[  692.472835] CPU: 0 PID: 4792 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  692.479921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  692.489254] Call Trace:
[  692.491831]  dump_stack+0x1c9/0x2b4
[  692.495444]  ? dump_stack_print_info.cold.2+0x52/0x52
[  692.500628]  ? save_stack+0x43/0xd0
[  692.504248]  ? kasan_kmalloc+0xc4/0xe0
[  692.508129]  ? kasan_slab_alloc+0x12/0x20
[  692.512255]  ? kmem_cache_alloc+0x12e/0x760
[  692.516569]  ? copy_creds+0x7b/0x470
[  692.520271]  should_fail.cold.4+0xa/0x1a
[  692.524328]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.529427]  ? find_held_lock+0x36/0x1c0
[  692.533477]  ? find_held_lock+0x36/0x1c0
[  692.537529]  ? check_same_owner+0x340/0x340
[  692.541843]  ? rcu_is_watching+0x8c/0x150
[  692.545971]  ? rcu_note_context_switch+0x730/0x730
[  692.550892]  ? security_prepare_creds+0x94/0xc0
[  692.555557]  __should_failslab+0x124/0x180
[  692.559776]  should_failslab+0x9/0x14
[  692.563558]  kmem_cache_alloc+0x2af/0x760
[  692.567707]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  692.572717]  __delayacct_tsk_init+0x20/0x80
[  692.577033]  copy_process.part.39+0x2ba8/0x7250
[  692.581704]  ? __lock_acquire+0x7fc/0x5020
[  692.585920]  ? __lock_acquire+0x7fc/0x5020
[  692.590142]  ? __lock_acquire+0x7fc/0x5020
[  692.594377]  ? __cleanup_sighand+0x70/0x70
[  692.598594]  ? debug_check_no_locks_freed+0x310/0x310
[  692.603764]  ? debug_check_no_locks_freed+0x310/0x310
[  692.608932]  ? print_usage_bug+0xc0/0xc0
[  692.612979]  ? print_usage_bug+0xc0/0xc0
[  692.617031]  ? d_splice_alias+0x7c9/0x11f0
[  692.621265]  ? lock_downgrade+0x8f0/0x8f0
[  692.625394]  ? d_instantiate_anon+0x30/0x30
[  692.629706]  ? __lock_acquire+0x7fc/0x5020
[  692.633925]  ? print_usage_bug+0xc0/0xc0
[  692.637969]  ? debug_check_no_locks_freed+0x310/0x310
[  692.643140]  ? debug_check_no_locks_freed+0x310/0x310
[  692.648312]  ? __lock_acquire+0x7fc/0x5020
[  692.652527]  ? print_usage_bug+0xc0/0xc0
[  692.656576]  ? lock_downgrade+0x8f0/0x8f0
[  692.660717]  ? debug_check_no_locks_freed+0x310/0x310
[  692.665901]  ? print_usage_bug+0xc0/0xc0
[  692.669954]  ? graph_lock+0x170/0x170
[  692.673735]  ? do_raw_spin_lock+0xc1/0x200
[  692.677957]  ? graph_lock+0x170/0x170
[  692.681758]  ? graph_lock+0x170/0x170
[  692.685558]  ? find_held_lock+0x36/0x1c0
[  692.689620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.695144]  ? _parse_integer+0x13b/0x190
[  692.699281]  ? graph_lock+0x170/0x170
[  692.703070]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  692.708598]  ? _kstrtoull+0x188/0x250
[  692.712383]  ? _parse_integer+0x190/0x190
[  692.716513]  ? graph_lock+0x170/0x170
[  692.720302]  ? lock_release+0xa30/0xa30
[  692.724263]  ? find_held_lock+0x36/0x1c0
[  692.728310]  ? lock_downgrade+0x8f0/0x8f0
[  692.732453]  ? kasan_check_read+0x11/0x20
[  692.736584]  ? rcu_is_watching+0x8c/0x150
[  692.740714]  ? pid_task+0x115/0x200
[  692.744319]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  692.748710]  ? save_stack+0xa9/0xd0
[  692.752319]  ? graph_lock+0x170/0x170
[  692.756127]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  692.761648]  ? proc_fail_nth_write+0x9e/0x210
[  692.766124]  ? proc_cwd_link+0x1d0/0x1d0
[  692.770190]  ? kasan_check_read+0x11/0x20
[  692.774334]  ? find_held_lock+0x36/0x1c0
[  692.778389]  _do_fork+0x291/0x12a0
[  692.781917]  ? fork_idle+0x1a0/0x1a0
[  692.785614]  ? __lock_is_held+0xb5/0x140
[  692.789667]  ? __sb_end_write+0xac/0xe0
[  692.793624]  ? vfs_write+0x2a8/0x560
[  692.797329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.803108]  ? ksys_write+0x1ae/0x260
[  692.806893]  ? __ia32_sys_read+0xb0/0xb0
[  692.810942]  ? syscall_slow_exit_work+0x500/0x500
[  692.815768]  __x64_sys_clone+0xbf/0x150
[  692.819729]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  692.824728]  do_syscall_64+0x1b9/0x820
[  692.828596]  ? syscall_slow_exit_work+0x500/0x500
[  692.833421]  ? syscall_return_slowpath+0x5e0/0x5e0
[  692.838341]  ? syscall_return_slowpath+0x31d/0x5e0
[  692.843267]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  692.848612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  692.853439]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  692.858609] RIP: 0033:0x441519
[  692.861780] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  692.880959] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  692.888648] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  692.895902] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  692.903150] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
executing program
[  692.910411] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  692.917673] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  692.929938] FAULT_INJECTION: forcing a failure.
[  692.929938] name failslab, interval 1, probability 0, space 0, times 0
[  692.941220] CPU: 0 PID: 4794 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  692.948308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  692.957652] Call Trace:
[  692.960279]  dump_stack+0x1c9/0x2b4
[  692.963901]  ? dump_stack_print_info.cold.2+0x52/0x52
[  692.969072]  ? save_stack+0x43/0xd0
[  692.972681]  ? kasan_kmalloc+0xc4/0xe0
[  692.976550]  ? kasan_slab_alloc+0x12/0x20
[  692.980681]  ? kmem_cache_alloc+0x12e/0x760
[  692.984995]  ? copy_creds+0x7b/0x470
[  692.988703]  should_fail.cold.4+0xa/0x1a
[  692.992746]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.997830]  ? find_held_lock+0x36/0x1c0
[  693.001883]  ? find_held_lock+0x36/0x1c0
[  693.005943]  ? check_same_owner+0x340/0x340
[  693.010256]  ? rcu_is_watching+0x8c/0x150
[  693.014388]  ? rcu_note_context_switch+0x730/0x730
[  693.019301]  ? security_prepare_creds+0x94/0xc0
[  693.023952]  __should_failslab+0x124/0x180
[  693.028171]  should_failslab+0x9/0x14
[  693.031953]  kmem_cache_alloc+0x2af/0x760
[  693.036083]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  693.041086]  __delayacct_tsk_init+0x20/0x80
[  693.045402]  copy_process.part.39+0x2ba8/0x7250
[  693.050054]  ? __lock_acquire+0x7fc/0x5020
[  693.054273]  ? __lock_acquire+0x7fc/0x5020
[  693.058502]  ? __lock_acquire+0x7fc/0x5020
[  693.062725]  ? __cleanup_sighand+0x70/0x70
[  693.066943]  ? debug_check_no_locks_freed+0x310/0x310
[  693.072113]  ? debug_check_no_locks_freed+0x310/0x310
[  693.077281]  ? print_usage_bug+0xc0/0xc0
[  693.081326]  ? print_usage_bug+0xc0/0xc0
[  693.085380]  ? d_splice_alias+0x7c9/0x11f0
[  693.089595]  ? lock_downgrade+0x8f0/0x8f0
[  693.093725]  ? d_instantiate_anon+0x30/0x30
[  693.098038]  ? __lock_acquire+0x7fc/0x5020
[  693.102255]  ? print_usage_bug+0xc0/0xc0
[  693.106314]  ? debug_check_no_locks_freed+0x310/0x310
[  693.111499]  ? debug_check_no_locks_freed+0x310/0x310
[  693.116673]  ? __lock_acquire+0x7fc/0x5020
[  693.120897]  ? print_usage_bug+0xc0/0xc0
[  693.124939]  ? lock_downgrade+0x8f0/0x8f0
[  693.129072]  ? debug_check_no_locks_freed+0x310/0x310
[  693.134243]  ? print_usage_bug+0xc0/0xc0
[  693.138287]  ? graph_lock+0x170/0x170
[  693.142078]  ? do_raw_spin_lock+0xc1/0x200
[  693.146295]  ? graph_lock+0x170/0x170
[  693.150076]  ? graph_lock+0x170/0x170
[  693.153860]  ? find_held_lock+0x36/0x1c0
[  693.157911]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.163435]  ? _parse_integer+0x13b/0x190
[  693.167564]  ? graph_lock+0x170/0x170
[  693.171345]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  693.176862]  ? _kstrtoull+0x188/0x250
[  693.180660]  ? _parse_integer+0x190/0x190
[  693.184803]  ? graph_lock+0x170/0x170
[  693.188585]  ? lock_release+0xa30/0xa30
[  693.192550]  ? find_held_lock+0x36/0x1c0
[  693.196617]  ? lock_downgrade+0x8f0/0x8f0
[  693.200768]  ? kasan_check_read+0x11/0x20
[  693.204896]  ? rcu_is_watching+0x8c/0x150
[  693.209031]  ? pid_task+0x115/0x200
[  693.212646]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  693.217044]  ? save_stack+0xa9/0xd0
[  693.220657]  ? graph_lock+0x170/0x170
[  693.224446]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  693.229972]  ? proc_fail_nth_write+0x9e/0x210
[  693.234447]  ? proc_cwd_link+0x1d0/0x1d0
[  693.238501]  ? kasan_check_read+0x11/0x20
[  693.242632]  ? find_held_lock+0x36/0x1c0
[  693.246679]  _do_fork+0x291/0x12a0
[  693.250215]  ? fork_idle+0x1a0/0x1a0
[  693.253911]  ? __lock_is_held+0xb5/0x140
[  693.257972]  ? __sb_end_write+0xac/0xe0
[  693.261937]  ? vfs_write+0x2a8/0x560
[  693.265651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.271185]  ? ksys_write+0x1ae/0x260
[  693.274968]  ? __ia32_sys_read+0xb0/0xb0
[  693.279032]  ? syscall_slow_exit_work+0x500/0x500
[  693.283857]  __x64_sys_clone+0xbf/0x150
[  693.287822]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  693.292822]  do_syscall_64+0x1b9/0x820
[  693.296691]  ? syscall_slow_exit_work+0x500/0x500
[  693.301526]  ? syscall_return_slowpath+0x5e0/0x5e0
[  693.306439]  ? syscall_return_slowpath+0x31d/0x5e0
[  693.311354]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  693.316701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  693.321526]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  693.326705] RIP: 0033:0x441519
[  693.329872] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
[  693.349070] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  693.356770] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
executing program
[  693.364027] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  693.371293] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  693.378542] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  693.385793] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  693.398121] FAULT_INJECTION: forcing a failure.
[  693.398121] name failslab, interval 1, probability 0, space 0, times 0
[  693.409396] CPU: 1 PID: 4796 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  693.416480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  693.425835] Call Trace:
[  693.428414]  dump_stack+0x1c9/0x2b4
[  693.432039]  ? dump_stack_print_info.cold.2+0x52/0x52
[  693.437225]  ? save_stack+0x43/0xd0
[  693.440840]  ? kasan_kmalloc+0xc4/0xe0
[  693.444795]  ? kasan_slab_alloc+0x12/0x20
[  693.448927]  ? kmem_cache_alloc+0x12e/0x760
[  693.453233]  ? copy_creds+0x7b/0x470
[  693.456948]  should_fail.cold.4+0xa/0x1a
[  693.460995]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  693.466090]  ? find_held_lock+0x36/0x1c0
[  693.470144]  ? find_held_lock+0x36/0x1c0
[  693.474208]  ? check_same_owner+0x340/0x340
[  693.478518]  ? rcu_is_watching+0x8c/0x150
[  693.482652]  ? rcu_note_context_switch+0x730/0x730
[  693.487591]  ? security_prepare_creds+0x94/0xc0
[  693.492253]  __should_failslab+0x124/0x180
[  693.496474]  should_failslab+0x9/0x14
[  693.500259]  kmem_cache_alloc+0x2af/0x760
[  693.504405]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  693.509415]  __delayacct_tsk_init+0x20/0x80
[  693.513736]  copy_process.part.39+0x2ba8/0x7250
[  693.518393]  ? __lock_acquire+0x7fc/0x5020
[  693.522627]  ? __lock_acquire+0x7fc/0x5020
[  693.526861]  ? __lock_acquire+0x7fc/0x5020
[  693.531096]  ? __cleanup_sighand+0x70/0x70
[  693.535322]  ? debug_check_no_locks_freed+0x310/0x310
[  693.540516]  ? debug_check_no_locks_freed+0x310/0x310
[  693.545702]  ? print_usage_bug+0xc0/0xc0
[  693.549759]  ? print_usage_bug+0xc0/0xc0
[  693.553807]  ? d_splice_alias+0x7c9/0x11f0
[  693.558035]  ? lock_downgrade+0x8f0/0x8f0
[  693.562172]  ? d_instantiate_anon+0x30/0x30
[  693.566480]  ? __lock_acquire+0x7fc/0x5020
[  693.570714]  ? print_usage_bug+0xc0/0xc0
[  693.574772]  ? debug_check_no_locks_freed+0x310/0x310
[  693.579946]  ? debug_check_no_locks_freed+0x310/0x310
[  693.585134]  ? __lock_acquire+0x7fc/0x5020
[  693.589362]  ? print_usage_bug+0xc0/0xc0
[  693.593406]  ? lock_downgrade+0x8f0/0x8f0
[  693.597553]  ? debug_check_no_locks_freed+0x310/0x310
[  693.602739]  ? print_usage_bug+0xc0/0xc0
[  693.606782]  ? graph_lock+0x170/0x170
[  693.610578]  ? do_raw_spin_lock+0xc1/0x200
[  693.614796]  ? graph_lock+0x170/0x170
[  693.618588]  ? graph_lock+0x170/0x170
[  693.622378]  ? find_held_lock+0x36/0x1c0
[  693.626435]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.631969]  ? _parse_integer+0x13b/0x190
[  693.636101]  ? graph_lock+0x170/0x170
[  693.639892]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  693.645422]  ? _kstrtoull+0x188/0x250
[  693.649207]  ? _parse_integer+0x190/0x190
[  693.653341]  ? graph_lock+0x170/0x170
[  693.657135]  ? lock_release+0xa30/0xa30
[  693.661094]  ? find_held_lock+0x36/0x1c0
[  693.665157]  ? lock_downgrade+0x8f0/0x8f0
[  693.669298]  ? kasan_check_read+0x11/0x20
[  693.673439]  ? rcu_is_watching+0x8c/0x150
[  693.677572]  ? pid_task+0x115/0x200
[  693.681186]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  693.685607]  ? save_stack+0xa9/0xd0
[  693.689227]  ? graph_lock+0x170/0x170
[  693.693027]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  693.698556]  ? proc_fail_nth_write+0x9e/0x210
[  693.703041]  ? proc_cwd_link+0x1d0/0x1d0
[  693.707114]  ? kasan_check_read+0x11/0x20
[  693.711256]  ? find_held_lock+0x36/0x1c0
[  693.715314]  _do_fork+0x291/0x12a0
[  693.718850]  ? fork_idle+0x1a0/0x1a0
[  693.722549]  ? __lock_is_held+0xb5/0x140
[  693.726602]  ? __sb_end_write+0xac/0xe0
[  693.730568]  ? vfs_write+0x2a8/0x560
[  693.734291]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.739810]  ? ksys_write+0x1ae/0x260
[  693.743596]  ? __ia32_sys_read+0xb0/0xb0
[  693.747648]  ? syscall_slow_exit_work+0x500/0x500
[  693.752478]  __x64_sys_clone+0xbf/0x150
[  693.756450]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  693.761451]  do_syscall_64+0x1b9/0x820
[  693.765324]  ? syscall_return_slowpath+0x5e0/0x5e0
[  693.770239]  ? syscall_return_slowpath+0x31d/0x5e0
[  693.775167]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  693.780530]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  693.785373]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  693.790547] RIP: 0033:0x441519
[  693.793717] Code: e8 ac b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
executing program
[  693.812890] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  693.820587] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  693.827841] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  693.835096] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  693.842347] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  693.849597] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  693.860961] FAULT_INJECTION: forcing a failure.
[  693.860961] name failslab, interval 1, probability 0, space 0, times 0
[  693.863316] kasan: CONFIG_KASAN_INLINE enabled
[  693.872237] CPU: 1 PID: 4798 Comm: syz-executor422 Not tainted 4.17.0+ #104
[  693.876762] kasan: GPF could be caused by NULL-ptr deref or user memory access
[  693.883839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  693.891175] general protection fault: 0000 [#1] SMP KASAN
[  693.900503] Call Trace:
[  693.906019] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.17.0+ #104
[  693.908867]  dump_stack+0x1c9/0x2b4
[  693.915151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  693.918759]  ? dump_stack_print_info.cold.2+0x52/0x52
[  693.928092] RIP: 0010:__delayacct_blkio_end+0x4f/0xc0
[  693.933263]  ? save_stack+0x43/0xd0
[  693.938410] Code: 48 
[  693.942036]  ? kasan_kmalloc+0xc4/0xe0
[  693.942044] c1 
[  693.944437]  ? kasan_slab_alloc+0x12/0x20
[  693.948332] ea 03 
[  693.950215]  ? kmem_cache_alloc+0x12e/0x760
[  693.954329] 80 
[  693.956462]  ? copy_creds+0x7b/0x470
[  693.960748] 3c 
[  693.962630]  should_fail.cold.4+0xa/0x1a
[  693.966390] 02 
[  693.968273]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  693.972298] 00 
[  693.974172]  ? find_held_lock+0x36/0x1c0
[  693.979237] 0f 
[  693.981112]  ? find_held_lock+0x36/0x1c0
[  693.985133] 85 80 
[  693.987020]  ? check_same_owner+0x340/0x340
[  693.991041] 00 
[  693.993176]  ? rcu_is_watching+0x8c/0x150
[  693.997465] 00 
[  693.999341]  ? rcu_note_context_switch+0x730/0x730
[  694.003453] 00 
[  694.005329]  ? security_prepare_creds+0x94/0xc0
[  694.010218] 48 
[  694.012094]  __should_failslab+0x124/0x180
[  694.016722] 8b 
[  694.018595]  should_failslab+0x9/0x14
[  694.022809] 9b 
[  694.024682]  kmem_cache_alloc+0x2af/0x760
[  694.028450] 48 
[  694.030324]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  694.034434] 12 
[  694.036308]  __delayacct_tsk_init+0x20/0x80
[  694.041286] 00 
[  694.043163]  copy_process.part.39+0x2ba8/0x7250
[  694.047446] 00 
[  694.049321]  ? __lock_acquire+0x7fc/0x5020
[  694.053953] 48 
[  694.055824]  ? __lock_acquire+0x7fc/0x5020
[  694.060023] b8 
[  694.061911]  ? __lock_acquire+0x7fc/0x5020
[  694.066110] 00 
[  694.067986]  ? __cleanup_sighand+0x70/0x70
[  694.072183] 00 
[  694.074079]  ? debug_check_no_locks_freed+0x310/0x310
[  694.078268] 00 
[  694.080141]  ? debug_check_no_locks_freed+0x310/0x310
[  694.085294] 00 
[  694.087166]  ? print_usage_bug+0xc0/0xc0
[  694.092318] 00 
[  694.094193]  ? print_usage_bug+0xc0/0xc0
[  694.098218] fc 
[  694.100110]  ? d_splice_alias+0x7c9/0x11f0
[  694.104132] ff 
[  694.106007]  ? lock_downgrade+0x8f0/0x8f0
[  694.110206] df 
[  694.112082]  ? d_instantiate_anon+0x30/0x30
[  694.116193] 48 
[  694.118071]  ? __lock_acquire+0x7fc/0x5020
[  694.122354] 8d 
[  694.124231]  ? print_usage_bug+0xc0/0xc0
[  694.128430] 7b 
[  694.130304]  ? debug_check_no_locks_freed+0x310/0x310
[  694.134327] 38 
[  694.136203]  ? debug_check_no_locks_freed+0x310/0x310
[  694.141356] 48 
[  694.143231]  ? __lock_acquire+0x7fc/0x5020
[  694.148395] 89 
[  694.150268]  ? print_usage_bug+0xc0/0xc0
[  694.154477] fa 
[  694.156353]  ? lock_downgrade+0x8f0/0x8f0
[  694.160377] 48 
[  694.162253]  ? debug_check_no_locks_freed+0x310/0x310
[  694.166365] c1 
[  694.168240]  ? print_usage_bug+0xc0/0xc0
[  694.173407] ea 
[  694.175294]  ? graph_lock+0x170/0x170
[  694.179318] 03 
[  694.181190]  ? do_raw_spin_lock+0xc1/0x200
[  694.184956] <0f> 
[  694.186842]  ? graph_lock+0x170/0x170
[  694.191054] b6 
[  694.193120]  ? graph_lock+0x170/0x170
[  694.196886] 04 
[  694.198760]  ? find_held_lock+0x36/0x1c0
[  694.202546] 02 
[  694.204421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.208480] 84 
[  694.210357]  ? _parse_integer+0x13b/0x190
[  694.215855] c0 74 
[  694.217743]  ? graph_lock+0x170/0x170
[  694.221864] 04 3c 
[  694.224015]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  694.227791] 03 7e 
[  694.229949]  ? _kstrtoull+0x188/0x250
[  694.235455] 51 
[  694.237614]  ? _parse_integer+0x190/0x190
[  694.241380] 44 8b 
[  694.243274]  ? graph_lock+0x170/0x170
[  694.247385] 63 38 
[  694.249535]  ? lock_release+0xa30/0xa30
[  694.253299] 31 ff 
[  694.255449]  ? find_held_lock+0x36/0x1c0
[  694.259409] 41 83 
[  694.261562]  ? lock_downgrade+0x8f0/0x8f0
[  694.265594] e4 01 
[  694.267765]  ? kasan_check_read+0x11/0x20
[  694.274014]  ? rcu_is_watching+0x8c/0x150
[  694.278142] RSP: 0000:ffff8801dae06c28 EFLAGS: 00010002
[  694.282306]  ? pid_task+0x115/0x200
[  694.287640] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8801d9778538
[  694.291257]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  694.298526] RDX: 0000000000000007 RSI: ffffffff817cba01 RDI: 0000000000000038
[  694.302928]  ? save_stack+0xa9/0xd0
[  694.310188] RBP: ffff8801dae06c40 R08: ffffed003b5c46d7 R09: 0000000000000000
[  694.313806]  ? graph_lock+0x170/0x170
[  694.321048] R10: ffff8801dae06d50 R11: ffff8801dae236b3 R12: ffffffff88e75dc0
[  694.321066] R13: ffff8801d9778500 R14: ffff8801d977853c R15: 0000000000000002
[  694.324863]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  694.332113] FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
[  694.339403]  ? proc_fail_nth_write+0x9e/0x210
[  694.344920] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  694.353154]  ? proc_cwd_link+0x1d0/0x1d0
[  694.357616] CR2: 0000000000000000 CR3: 0000000008e6a000 CR4: 00000000001406f0
[  694.357627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  694.363538]  ? kasan_check_read+0x11/0x20
[  694.367574] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  694.374847]  ? find_held_lock+0x36/0x1c0
[  694.382085] Call Trace:
[  694.386221]  _do_fork+0x291/0x12a0
[  694.393460]  <IRQ>
[  694.397509]  ? fork_idle+0x1a0/0x1a0
[  694.400069]  try_to_wake_up+0xacb/0x12b0
[  694.403586]  ? __lock_is_held+0xb5/0x140
[  694.405712]  ? migrate_swap_stop+0x850/0x850
[  694.409407]  ? __sb_end_write+0xac/0xe0
[  694.413451]  ? lock_downgrade+0x8f0/0x8f0
[  694.417500]  ? vfs_write+0x2a8/0x560
[  694.421889]  ? unwind_next_frame.part.7+0x1ae/0x9e0
[  694.425843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.429974]  ? unwind_dump+0x190/0x190
[  694.433665]  ? ksys_write+0x1ae/0x260
[  694.438678]  ? x86_64_start_kernel+0x76/0x79
[  694.444185]  ? __ia32_sys_read+0xb0/0xb0
[  694.448059]  ? x86_64_start_kernel+0x47/0x79
[  694.451840]  ? syscall_slow_exit_work+0x500/0x500
[  694.456224]  default_wake_function+0x30/0x50
[  694.460261]  __x64_sys_clone+0xbf/0x150
[  694.464643]  autoremove_wake_function+0x80/0x370
[  694.469465]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  694.473846]  ? unwind_next_frame+0x3e/0x50
[  694.477797]  do_syscall_64+0x1b9/0x820
[  694.482524]  ? finish_wait+0x430/0x430
[  694.487518]  ? syscall_return_slowpath+0x5e0/0x5e0
[  694.492076]  ? secondary_startup_64+0xa5/0xb0
[  694.495938]  ? syscall_return_slowpath+0x31d/0x5e0
[  694.499808]  wake_bit_function+0xcb/0x160
[  694.504719]  ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[  694.509185]  ? lock_acquire+0x1e4/0x540
[  694.514102]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  694.518221]  __wake_up_common+0x191/0x740
[  694.523563]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  694.527509]  ? wait_woken+0x2a0/0x2a0
[  694.532324] RIP: 0033:0x441519
[  694.536447]  ? handle_irq_event+0xa7/0x135
[  694.541613] Code: 
[  694.545394]  ? handle_edge_irq+0x20f/0x870
[  694.548552] e8 
[  694.552769]  ? handle_irq+0x18c/0x2e7
[  694.554886] ac 
[  694.559114]  ? do_IRQ+0x78/0x190
[  694.560973] b5 
[  694.564757]  ? kasan_check_write+0x14/0x20
[  694.566624] 02 
[  694.569971]  ? do_raw_spin_lock+0xc1/0x200
[  694.571829] 00 
[  694.576047]  __wake_up_common_lock+0x1c2/0x330
[  694.577905] 48 
[  694.582121]  ? __wake_up_common+0x740/0x740
[  694.583976] 83 
[  694.588542]  ? mempool_free_slab+0x1d/0x30
[  694.590394] c4 
[  694.594698]  ? mempool_free_slab+0x1d/0x30
[  694.596552] 18 
[  694.600770]  ? rcu_read_lock_sched_held+0x108/0x120
[  694.602625] c3 
[  694.606839]  __wake_up+0xe/0x10
[  694.608707] 0f 
[  694.613703]  __wake_up_bit+0x1af/0x290
[  694.615563] 1f 
[  694.618821]  ? mempool_free+0xf2/0x370
[  694.620690] 80 
[  694.624560]  ? var_wake_function+0x150/0x150
[  694.626420] 00 
[  694.630294]  ? bio_free+0xf7/0x150
[  694.632149] 00 
[  694.636543]  ? bio_put+0x183/0x1f0
[  694.638419] 00 
[  694.641942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.643799] 00 
[  694.647323]  ? bio_disassociate_task+0x169/0x4c0
[  694.649195] 48 
[  694.654717]  ? jbd2_journal_forget.cold.18+0x41/0x41
[  694.656572] 89 
[  694.661307]  wake_up_bit+0x3d/0x40
[  694.663169] f8 
[  694.668251]  journal_end_buffer_io_sync+0xa4/0xe0
[  694.670108] 48 
[  694.673630]  end_bio_bh_io_sync+0xf3/0x140
[  694.675496] 89 
[  694.680336]  ? invalidate_bh_lrus+0x30/0x30
[  694.682194] f7 
[  694.686409]  bio_endio+0x530/0x9e0
[  694.688372] 48 
[  694.692682]  ? bio_dirty_fn+0x470/0x470
[  694.694540] 89 
[  694.698061]  ? kasan_check_read+0x11/0x20
[  694.699916] d6 
[  694.703884]  ? rcu_is_watching+0x8c/0x150
[  694.705743] 48 
[  694.709869]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  694.711730] 89 
[  694.715868]  ? __lock_is_held+0xb5/0x140
[  694.717725] ca 
[  694.722137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.724003] 4d 
[  694.728044]  ? bio_advance+0x364/0x470
[  694.729900] 89 
[  694.735456]  blk_update_request+0x3b2/0xcd0
[  694.737322] c2 
[  694.741193]  ? __lock_acquire+0x7b0/0x5020
[  694.743052] 4d 
[  694.747376]  ? blk_account_io_completion+0x490/0x490
[  694.749228] 89 
[  694.753464]  ? attach_entity_load_avg+0x860/0x860
[  694.755316] c8 
[  694.760421]  scsi_end_request+0xde/0x890
[  694.762289] 4c 
[  694.767112]  ? scsi_mq_uninit_cmd+0x30/0x30
[  694.768972] 8b 
[  694.773013]  scsi_io_completion+0xcc6/0x1dd0
[  694.774877] 4c 
[  694.779181]  ? __sanitizer_cov_trace_cmp4+0x20/0x20
[  694.781036] 24 
[  694.785424]  ? scsi_end_request+0x890/0x890
[  694.787293] 08 
[  694.792302]  ? sd_completed_bytes+0x3e0/0x3e0
[  694.794158] 0f 
[  694.798462]  scsi_finish_command+0x54a/0x8f0
[  694.800329] 05 
[  694.804805]  ? scsi_put_command+0x60/0x60
[  694.806671] <48> 
[  694.811062]  ? mark_held_locks+0xc9/0x160
[  694.812917] 3d 
[  694.817056]  ? trace_hardirqs_on+0xd/0x10
[  694.819088] 01 
[  694.823218]  ? __sanitizer_cov_trace_cmp2+0x18/0x20
[  694.825074] f0 
[  694.829204]  ? scsi_handle_queue_ramp_up+0x4b0/0x660
[  694.831062] ff 
[  694.836061]  ? trace_hardirqs_on+0xd/0x10
[  694.837917] ff 
[  694.843005]  ? scsi_host_eh_past_deadline.isra.10.part.11+0x170/0x170
[  694.844862] 0f 
[  694.848990]  ? rcu_barrier_sched+0x10/0x10
[  694.850848] 83 
[  694.857407]  ? print_usage_bug+0xc0/0xc0
[  694.859264] 1b 
[  694.863482]  ? scsi_decide_disposition+0x1ea/0x5d0
[  694.865337] 09 
[  694.869391]  scsi_softirq_done+0x3f6/0x4d0
[  694.871247] fc 
[  694.876159]  ? scsi_queue_insert+0x30/0x30
[  694.878017] ff 
[  694.882232]  ? __lock_acquire+0x7fc/0x5020
[  694.884086] c3 
[  694.888302]  ? __lock_is_held+0xb5/0x140
[  694.890157] 66 
[  694.894375]  blk_mq_complete_request+0x355/0x630
[  694.896228] 2e 
[  694.900271]  scsi_mq_done+0xe7/0x450
[  694.902135] 0f 
[  694.906872]  ? scsi_mq_get_budget+0x4c0/0x4c0
[  694.908766] 1f 
[  694.912464]  ? virtqueue_get_buf_ctx+0x3e4/0x820
[  694.914329] 84 
[  694.918806]  ? lock_release+0xa30/0xa30
[  694.920662] 00 
[  694.925398]  ? detach_buf+0x5c0/0x5c0
[  694.927267] 00 
[  694.931233]  virtscsi_complete_cmd+0x573/0x740
[  694.933088] 00 
[  694.936871]  ? virtscsi_remove+0x210/0x210
[  694.938729] 00 
[  694.943291]  virtscsi_vq_done+0xcb/0x180
[  694.949360]  ? virtscsi_target_destroy+0x50/0x50
[  694.951223] RSP: 002b:00007ffc2ba79078 EFLAGS: 00000246
[  694.955279]  ? kasan_check_read+0x11/0x20
[  694.960018]  ORIG_RAX: 0000000000000038
[  694.965361]  ? rcu_is_watching+0x8c/0x150
[  694.969481] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441519
[  694.973432]  ? __lock_is_held+0xb5/0x140
[  694.977549] RDX: 0000000020000440 RSI: 0000000020000340 RDI: 0000000000000000
[  694.984799]  ? rcu_pm_notify+0xc0/0xc0
[  694.988836] RBP: 00007ffc2ba79090 R08: 00000000200004c0 R09: 0000000000000001
[  694.996089]  virtscsi_req_done+0xa7/0xd0
[  694.999949] R10: 0000000020000480 R11: 0000000000000246 R12: ffffffffffffffff
[  695.007209]  ? virtscsi_vq_done+0x180/0x180
[  695.011239] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
[  695.018489]  vring_interrupt+0x128/0x170
[  695.034104]  ? vring_map_single.constprop.21+0x2a0/0x2a0
[  695.039535]  __handle_irq_event_percpu+0x1c8/0xaf0
[  695.044443]  ? __irq_wake_thread+0x180/0x180
[  695.048841]  ? find_held_lock+0x36/0x1c0
[  695.052891]  ? lock_downgrade+0x8f0/0x8f0
[  695.057024]  ? handle_edge_irq+0x30/0x870
[  695.061152]  handle_irq_event_percpu+0xa0/0x1d0
[  695.065796]  ? do_raw_spin_trylock+0x1c0/0x1c0
[  695.070358]  ? __handle_irq_event_percpu+0xaf0/0xaf0
[  695.075438]  handle_irq_event+0xa7/0x135
[  695.079478]  handle_edge_irq+0x20f/0x870
[  695.083526]  handle_irq+0x18c/0x2e7
[  695.087129]  ? __local_bh_enable+0xef/0x130
[  695.091428]  do_IRQ+0x78/0x190
[  695.094598]  common_interrupt+0xf/0xf
[  695.098370]  </IRQ>
[  695.100585] RIP: 0010:native_safe_halt+0x6/0x10
[  695.105224] Code: c7 48 89 45 d8 e8 6a 91 27 fa 48 8b 45 d8 e9 d2 fe ff ff 48 89 df e8 59 91 27 fa eb 8a 90 90 90 90 90 90 90 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90 
[  695.124338] RSP: 0000:ffffffff88e07bc0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffda
[  695.132051] RAX: dffffc0000000000 RBX: 1ffffffff11c0f7b RCX: 0000000000000000
[  695.139320] RDX: 1ffffffff11e3600 RSI: 0000000000000001 RDI: ffffffff88f1b000
[  695.146603] RBP: ffffffff88e07bc0 R08: ffffed003b5c46d7 R09: 0000000000000000
[  695.153853] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  695.161101] R13: ffffffff88e07c78 R14: ffffffff899ea9e0 R15: 0000000000000000
[  695.168369]  default_idle+0xc7/0x450
[  695.172061]  ? __sched_text_end+0x3/0x3
[  695.176104]  ? rcu_idle_enter+0x30a/0x480
[  695.180243]  ? rcu_eqs_special_set+0x1b0/0x1b0
[  695.184807]  ? tsc_verify_tsc_adjust+0x109/0x380
[  695.189550]  ? mark_tsc_async_resets+0x20/0x20
[  695.194112]  ? tick_nohz_idle_enter+0x219/0x320
[  695.198760]  arch_cpu_idle+0x10/0x20
[  695.202455]  default_idle_call+0x6d/0x90
[  695.206522]  do_idle+0x3aa/0x570
[  695.209867]  ? arch_cpu_idle_exit+0x70/0x70
[  695.214168]  cpu_startup_entry+0x10c/0x120
[  695.218396]  ? cpu_in_idle+0x20/0x20
[  695.222100]  ? trace_hardirqs_on_caller+0x421/0x5c0
[  695.227105]  ? trace_hardirqs_on+0xd/0x10
[  695.231245]  rest_init+0xe1/0xe4
[  695.234602]  start_kernel+0x90e/0x949
[  695.238390]  ? mem_encrypt_init+0xb/0xb
[  695.242345]  ? early_idt_handler_common+0x3b/0x60
[  695.247169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.252684]  ? x86_family+0x3e/0x50
[  695.256290]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  695.261819]  x86_64_start_reservations+0x29/0x2b
[  695.266555]  x86_64_start_kernel+0x76/0x79
[  695.270770]  secondary_startup_64+0xa5/0xb0
[  695.275073] Modules linked in:
[  695.278252] Dumping ftrace buffer:
[  695.281777]    (ftrace buffer empty)
[  695.285468] 
[  695.285472] ======================================================
[  695.285482] WARNING: possible circular locking dependency detected
[  695.285484] 4.17.0+ #104 Not tainted
[  695.285487] ------------------------------------------------------
[  695.285490] swapper/0/0 is trying to acquire lock:
[  695.285491] (____ptrval____) ((console_sem).lock){-...}, at: down_trylock+0x13/0x70
[  695.285500] 
[  695.285502] but task is already holding lock:
[  695.285504] (____ptrval____) (&p->pi_lock){-.-.}, at: try_to_wake_up+0xd2/0x12b0
[  695.285511] 
[  695.285514] which lock already depends on the new lock.
[  695.285515] 
[  695.285517] 
[  695.285520] the existing dependency chain (in reverse order) is:
[  695.285521] 
[  695.285522] -> #1 (&p->pi_lock){-.-.}:
[  695.285530]        _raw_spin_lock_irqsave+0x96/0xc0
[  695.285532]        try_to_wake_up+0xd2/0x12b0
[  695.285534]        wake_up_process+0x10/0x20
[  695.285536]        __up.isra.1+0x1c0/0x2a0
[  695.285538]        up+0x13c/0x1c0
[  695.285540]        __up_console_sem+0xbe/0x1b0
[  695.285543]        console_unlock+0x7a2/0x10b0
[  695.285545]        vprintk_emit+0x6c6/0xdf0
[  695.285547]        vprintk_default+0x28/0x30
[  695.285549]        vprintk_func+0x7a/0xe7
[  695.285551]        printk+0xa7/0xcf
[  695.285553]        load_umh+0x51/0xbd
[  695.285555]        do_one_initcall+0x127/0x913
[  695.285558]        kernel_init_freeable+0x49b/0x58e
[  695.285560]        kernel_init+0x11/0x1b3
[  695.285562]        ret_from_fork+0x3a/0x50
[  695.285563] 
[  695.285564] -> #0 ((console_sem).lock){-...}:
[  695.285572]        lock_acquire+0x1e4/0x540
[  695.285574]        _raw_spin_lock_irqsave+0x96/0xc0
[  695.285576]        down_trylock+0x13/0x70
[  695.285579]        __down_trylock_console_sem+0xae/0x200
[  695.285581]        console_trylock+0x15/0xa0
[  695.285583]        vprintk_emit+0x6ad/0xdf0
[  695.285586]        vprintk_default+0x28/0x30
[  695.285588]        vprintk_func+0x7a/0xe7
[  695.285590]        printk+0xa7/0xcf
[  695.285592]        kasan_die_handler.cold.22+0x11/0x30
[  695.285594]        notifier_call_chain+0x180/0x390
[  695.285597]        atomic_notifier_call_chain+0x98/0x190
[  695.285599]        notify_die+0x1be/0x2e0
[  695.285602]        do_general_protection+0x248/0x2f0
[  695.285604]        general_protection+0x1e/0x30
[  695.285606]        __delayacct_blkio_end+0x4f/0xc0
[  695.285609]        try_to_wake_up+0xacb/0x12b0
[  695.285611]        default_wake_function+0x30/0x50
[  695.285614]        autoremove_wake_function+0x80/0x370
[  695.285616]        wake_bit_function+0xcb/0x160
[  695.285618]        __wake_up_common+0x191/0x740
[  695.285621]        __wake_up_common_lock+0x1c2/0x330
[  695.285623]        __wake_up+0xe/0x10
[  695.285625]        __wake_up_bit+0x1af/0x290
[  695.285627]        wake_up_bit+0x3d/0x40
[  695.285630]        journal_end_buffer_io_sync+0xa4/0xe0
[  695.285633]        end_bio_bh_io_sync+0xf3/0x140
[  695.285635]        bio_endio+0x530/0x9e0
[  695.285637]        blk_update_request+0x3b2/0xcd0
[  695.285640]        scsi_end_request+0xde/0x890
[  695.285642]        scsi_io_completion+0xcc6/0x1dd0
[  695.285645]        scsi_finish_command+0x54a/0x8f0
[  695.285647]        scsi_softirq_done+0x3f6/0x4d0
[  695.285650]        blk_mq_complete_request+0x355/0x630
[  695.285652]        scsi_mq_done+0xe7/0x450
[  695.285655]        virtscsi_complete_cmd+0x573/0x740
[  695.285657]        virtscsi_vq_done+0xcb/0x180
[  695.285660]        virtscsi_req_done+0xa7/0xd0
[  695.285662]        vring_interrupt+0x128/0x170
[  695.285665]        __handle_irq_event_percpu+0x1c8/0xaf0
[  695.285668]        handle_irq_event_percpu+0xa0/0x1d0
[  695.285670]        handle_irq_event+0xa7/0x135
[  695.285672]        handle_edge_irq+0x20f/0x870
[  695.285674]        handle_irq+0x18c/0x2e7
[  695.285676]        do_IRQ+0x78/0x190
[  695.285679]        ret_from_intr+0x0/0x1e
[  695.285681]        native_safe_halt+0x6/0x10
[  695.285683]        default_idle+0xc7/0x450
[  695.285685]        arch_cpu_idle+0x10/0x20
[  695.285688]        default_idle_call+0x6d/0x90
[  695.285690]        do_idle+0x3aa/0x570
[  695.285692]        cpu_startup_entry+0x10c/0x120
[  695.285694]        rest_init+0xe1/0xe4
[  695.285696]        start_kernel+0x90e/0x949
[  695.285699]        x86_64_start_reservations+0x29/0x2b
[  695.285701]        x86_64_start_kernel+0x76/0x79
[  695.285704]        secondary_startup_64+0xa5/0xb0
[  695.285705] 
[  695.285707] other info that might help us debug this:
[  695.285708] 
[  695.285711]  Possible unsafe locking scenario:
[  695.285712] 
[  695.285714]        CPU0                    CPU1
[  695.285716]        ----                    ----
[  695.285718]   lock(&p->pi_lock);
[  695.285723]                                lock((console_sem).lock);
[  695.285728]                                lock(&p->pi_lock);
[  695.285732]   lock((console_sem).lock);
[  695.285736] 
[  695.285738]  *** DEADLOCK ***
[  695.285739] 
[  695.285741] 4 locks held by swapper/0/0:
[  695.285742]  #0: (____ptrval____) (&(&virtscsi_vq->vq_lock)->rlock){-.-.}, at: virtscsi_vq_done+0xa5/0x180
[  695.285752]  #1: (____ptrval____) (bit_wait_table + i){-.-.}, at: __wake_up_common_lock+0x19e/0x330
[  695.285762]  #2: (____ptrval____) (&p->pi_lock){-.-.}, at: try_to_wake_up+0xd2/0x12b0
[  695.285771]  #3: (____ptrval____) (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190
[  695.285780] 
[  695.285782] stack backtrace:
[  695.285785] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.17.0+ #104
[  695.285789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  695.285791] Call Trace:
[  695.285792]  <IRQ>
[  695.285794]  dump_stack+0x1c9/0x2b4
[  695.285797]  ? dump_stack_print_info.cold.2+0x52/0x52
[  695.285799]  ? vprintk_func+0xd0/0xe7
[  695.285802]  print_circular_bug.isra.36.cold.56+0x1bd/0x27d
[  695.285804]  ? save_trace+0xe0/0x290
[  695.285806]  __lock_acquire+0x3449/0x5020
[  695.285809]  ? debug_check_no_locks_freed+0x310/0x310
[  695.285812]  ? debug_check_no_locks_freed+0x310/0x310
[  695.285814]  ? do_raw_spin_trylock+0x1c0/0x1c0
[  695.285816]  ? graph_lock+0x170/0x170
[  695.285819]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  695.285821]  ? sock_put+0x30/0x50
[  695.285823]  ? tcp_v4_rcv+0x1c7/0x38e0
[  695.285825]  ? find_held_lock+0x36/0x1c0
[  695.285828]  ? lock_downgrade+0x8f0/0x8f0
[  695.285830]  ? graph_lock+0x170/0x170
[  695.285832]  ? kasan_check_read+0x11/0x20
[  695.285834]  ? rcu_is_watching+0x8c/0x150
[  695.285837]  ? print_usage_bug+0xc0/0xc0
[  695.285839]  lock_acquire+0x1e4/0x540
[  695.285841]  ? down_trylock+0x13/0x70
[  695.285843]  ? lock_release+0xa30/0xa30
[  695.285845]  ? lock_downgrade+0x8f0/0x8f0
[  695.285848]  ? kvm_sched_clock_read+0x9/0x20
[  695.285850]  ? sched_clock+0x31/0x40
[  695.285852]  ? vprintk_emit+0x6ad/0xdf0
[  695.285854]  _raw_spin_lock_irqsave+0x96/0xc0
[  695.285857]  ? down_trylock+0x13/0x70
[  695.285859]  down_trylock+0x13/0x70
[  695.285861]  __down_trylock_console_sem+0xae/0x200
[  695.285864]  console_trylock+0x15/0xa0
[  695.285866]  vprintk_emit+0x6ad/0xdf0
[  695.285868]  ? wake_up_klogd+0x110/0x110
[  695.285871]  ? ip_local_deliver_finish+0xda0/0xda0
[  695.285873]  ? __lock_acquire+0x7fc/0x5020
[  695.285876]  ? lock_downgrade+0x8f0/0x8f0
[  695.285878]  ? tcp_v4_send_synack+0x4c0/0x4c0
[  695.285880]  vprintk_default+0x28/0x30
[  695.285882]  vprintk_func+0x7a/0xe7
[  695.285884]  printk+0xa7/0xcf
[  695.285887]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  695.285889]  ? kasan_die_handler.cold.22+0x5/0x30
[  695.285892]  ? kasan_die_handler+0x1a/0x31
[  695.285894]  kasan_die_handler.cold.22+0x11/0x30
[  695.285896]  notifier_call_chain+0x180/0x390
[  695.285899]  ? unregister_die_notifier+0x20/0x20
[  695.285901]  ? rcu_is_watching+0x8c/0x150
[  695.285904]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  695.285906]  ? rcu_report_qs_rnp+0x7a0/0x7a0
[  695.285908]  ? cmp_ex_search+0x8c/0xb0
[  695.285911]  atomic_notifier_call_chain+0x98/0x190
[  695.285913]  notify_die+0x1be/0x2e0
[  695.285915]  ? __atomic_notifier_call_chain+0x1a0/0x1a0
[  695.285918]  ? search_module_extables+0x18/0xc0
[  695.285920]  ? __delayacct_blkio_end+0x4f/0xc0
[  695.285923]  ? __delayacct_blkio_end+0x4f/0xc0
[  695.285925]  ? search_exception_tables+0x47/0x50
[  695.285927]  do_general_protection+0x248/0x2f0
[  695.285930]  general_protection+0x1e/0x30
[  695.285932] RIP: 0010:__delayacct_blkio_end+0x4f/0xc0
[  695.285934] Code: 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 48 8b 9b 48 12 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 38 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 51 44 8b 63 38 31 ff 41 83 e4 01 
[  695.286013] RSP: 0000:ffff8801dae06c28 EFLAGS: 00010002
[  695.286021] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8801d9778538
[  695.286026] RDX: 0000000000000007 RSI: ffffffff817cba01 RDI: 0000000000000038
[  695.286030] RBP: ffff8801dae06c40 R08: ffffed003b5c46d7 R09: 0000000000000000
[  695.286034] R10: ffff8801dae06d50 R11: ffff8801dae236b3 R12: ffffffff88e75dc0
[  695.286037] R13: ffff8801d9778500 R14: ffff8801d977853c R15: 0000000000000002
[  695.286040]  ? __delayacct_blkio_end+0x11/0xc0
[  695.286042]  ? __delayacct_blkio_end+0x11/0xc0
[  695.286044]  try_to_wake_up+0xacb/0x12b0
[  695.286047]  ? migrate_swap_stop+0x850/0x850
[  695.286049]  ? lock_downgrade+0x8f0/0x8f0
[  695.286052]  ? unwind_next_frame.part.7+0x1ae/0x9e0
[  695.286054]  ? unwind_dump+0x190/0x190
[  695.286056]  ? x86_64_start_kernel+0x76/0x79
[  695.286058]  ? x86_64_start_kernel+0x47/0x79
[  695.286061]  default_wake_function+0x30/0x50
[  695.286063]  autoremove_wake_function+0x80/0x370
[  695.286066]  ? unwind_next_frame+0x3e/0x50
[  695.286068]  ? finish_wait+0x430/0x430
[  695.286070]  ? secondary_startup_64+0xa5/0xb0
[  695.286072]  wake_bit_function+0xcb/0x160
[  695.286075]  ? lock_acquire+0x1e4/0x540
[  695.286077]  __wake_up_common+0x191/0x740
[  695.286079]  ? wait_woken+0x2a0/0x2a0
[  695.286081]  ? handle_irq_event+0xa7/0x135
[  695.286083]  ? handle_edge_irq+0x20f/0x870
[  695.286086]  ? handle_irq+0x18c/0x2e7
[  695.286088]  ? do_IRQ+0x78/0x190
[  695.286090]  ? kasan_check_write+0x14/0x20
[  695.286092]  ? do_raw_spin_lock+0xc1/0x200
[  695.286095]  __wake_up_common_lock+0x1c2/0x330
[  695.286097]  ? __wake_up_common+0x740/0x740
[  695.286099]  ? mempool_free_slab+0x1d/0x30
[  695.286101]  ? mempool_free_slab+0x1d/0x30
[  695.286104]  ? rcu_read_lock_sched_held+0x108/0x120
[  695.286106]  __wake_up+0xe/0x10
[  695.286108]  __wake_up_bit+0x1af/0x290
[  695.286110]  ? mempool_free+0xf2/0x370
[  695.286113]  ? var_wake_function+0x150/0x150
[  695.286115]  ? bio_free+0xf7/0x150
[  695.286117]  ? bio_put+0x183/0x1f0
[  695.286119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.286122]  ? bio_disassociate_task+0x169/0x4c0
[  695.286125]  ? jbd2_journal_forget.cold.18+0x41/0x41
[  695.286127]  wake_up_bit+0x3d/0x40
[  695.286129]  journal_end_buffer_io
[  695.286134] Lost 167 message(s)!
[  696.296915] ---[ end trace 9ef680b141ad1ec6 ]---
[  696.301663] RIP: 0010:__delayacct_blkio_end+0x4f/0xc0
[  696.306823] Code: 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 48 8b 9b 48 12 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 38 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 51 44 8b 63 38 31 ff 41 83 e4 01 
[  696.325940] RSP: 0000:ffff8801dae06c28 EFLAGS: 00010002
[  696.331288] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8801d9778538
[  696.338544] RDX: 0000000000000007 RSI: ffffffff817cba01 RDI: 0000000000000038
[  696.345788] RBP: ffff8801dae06c40 R08: ffffed003b5c46d7 R09: 0000000000000000
[  696.353037] R10: ffff8801dae06d50 R11: ffff8801dae236b3 R12: ffffffff88e75dc0
[  696.360686] R13: ffff8801d9778500 R14: ffff8801d977853c R15: 0000000000000002
[  696.367936] FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
[  696.376148] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  696.382028] CR2: 0000000000000000 CR3: 0000000008e6a000 CR4: 00000000001406f0
[  696.389282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  696.396528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  696.403775] Kernel panic - not syncing: Fatal exception in interrupt
[  696.410736] Dumping ftrace buffer:
[  696.414255]    (ftrace buffer empty)
[  696.417951] Kernel Offset: disabled
[  696.421558] Rebooting in 86400 seconds..