program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./debug\x00', &(0x7f0000000300)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./debug/failslab/task-filter\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./debug/failslab/probability\x00', 0x1, 0x0)
write(r0, &(0x7f0000000100)='N', 0x1)
write(r1, &(0x7f0000000100)='100', 0x3)
lsetxattr$trusted_overlay_origin(0x0, &(0x7f00000001c0), &(0x7f0000000340), 0x2, 0x2)
mount$9p_fd(0x0, 0x0, 0x0, 0x1000, 0x0)
[ 88.959911][ T4648] Bluetooth: hci0: command tx timeout
[ 89.028245][ T5319] FAULT_INJECTION: forcing a failure.
[ 89.028245][ T5319] name failslab, interval 1, probability 100, space 0, times 1
[ 89.028349][ T5319] CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 89.028364][ T5319] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 89.028394][ T5319] Call Trace:
[ 89.028423][ T5319]
[ 89.028455][ T5319] dump_stack_lvl+0xe8/0x150
[ 89.028615][ T5319] should_fail_ex+0x410/0x560
[ 89.028737][ T5319] should_failslab+0xa8/0x100
[ 89.028883][ T5319] __kvmalloc_node_noprof+0x176/0x820
[ 89.028937][ T5319] ? vmemdup_user+0x2b/0xd0
[ 89.028983][ T5319] ? vmemdup_user+0x2b/0xd0
[ 89.028999][ T5319] vmemdup_user+0x2b/0xd0
[ 89.029011][ T5319] path_setxattrat+0x2d0/0x450
[ 89.029063][ T5319] ? __pfx_path_setxattrat+0x10/0x10
[ 89.029073][ T5319] ? do_futex+0x3e7/0x4e0
[ 89.029143][ T5319] ? rcu_is_watching+0x16/0xb0
[ 89.029180][ T5319] __x64_sys_lsetxattr+0xbf/0xe0
[ 89.029201][ T5319] do_syscall_64+0x166/0x520
[ 89.029321][ T5319] ? trace_irq_disable+0x3b/0x140
[ 89.029352][ T5319] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.029377][ T5319] ? clear_bhb_loop+0x70/0xc0
[ 89.029393][ T5319] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.029406][ T5319] RIP: 0033:0x7f7b30b9e159
[ 89.029439][ T5319] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 89.029451][ T5319] RSP: 002b:00007f7b31accfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
[ 89.029466][ T5319] RAX: ffffffffffffffda RBX: 00007f7b30e25fa0 RCX: 00007f7b30b9e159
[ 89.029475][ T5319] RDX: 0000200000000340 RSI: 00002000000001c0 RDI: 0000000000000000
[ 89.029483][ T5319] RBP: 00007f7b30c3506b R08: 0000000000000002 R09: 0000000000000000
[ 89.029491][ T5319] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
[ 89.029499][ T5319] R13: 00007f7b30e26038 R14: 00007f7b30e25fa0 R15: 00007fffd9701108
[ 89.029516][ T5319]
[ 89.029732][ T1381] FAULT_INJECTION: forcing a failure.
[ 89.029732][ T1381] name failslab, interval 1, probability 100, space 0, times 1
[ 89.029750][ T1381] CPU: 0 UID: 0 PID: 1381 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full)
[ 89.029763][ T1381] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 89.029781][ T1381] Workqueue: events nsim_fib_event_work
[ 89.029856][ T1381] Call Trace:
[ 89.029861][ T1381]
[ 89.029866][ T1381] dump_stack_lvl+0xe8/0x150
[ 89.029886][ T1381] should_fail_ex+0x410/0x560
[ 89.029901][ T1381] should_failslab+0xa8/0x100
[ 89.029915][ T1381] __kmalloc_cache_noprof+0xa3/0x600
[ 89.029933][ T1381] ? __lock_acquire+0x747/0x2de0
[ 89.029946][ T1381] ? nsim_fib_event+0x4c8/0xa3a0
[ 89.029955][ T1381] ? nsim_fib_event+0x4c8/0xa3a0
[ 89.029969][ T1381] nsim_fib_event+0x4c8/0xa3a0
[ 89.029980][ T1381] ? worker_thread+0xa47/0xfb0
[ 89.030006][ T1381] ? kthread+0x38b/0x480
[ 89.030022][ T1381] ? ret_from_fork+0x514/0xb70
[ 89.030078][ T1381] ? ret_from_fork_asm+0x1a/0x30
[ 89.030109][ T1381] ? __pfx_nsim_fib_event+0x10/0x10
[ 89.030129][ T1381] ? kasan_quarantine_put+0xbb/0x1f0
[ 89.030157][ T1381] nsim_fib_event_work+0x244/0x3b0
[ 89.030175][ T1381] ? __pfx_nsim_fib_event_work+0x10/0x10
[ 89.030193][ T1381] ? rcu_is_watching+0x16/0xb0
[ 89.030208][ T1381] ? process_scheduled_works+0x97a/0x1630
[ 89.030224][ T1381] process_scheduled_works+0xc3d/0x1630
[ 89.030256][ T1381] ? __pfx_process_scheduled_works+0x10/0x10
[ 89.030298][ T1381] ? assign_work+0x3cf/0x5d0
[ 89.030317][ T1381] worker_thread+0xa47/0xfb0
[ 89.030340][ T1381] ? __kthread_parkme+0x71/0x1f0
[ 89.030363][ T1381] kthread+0x38b/0x480
[ 89.030374][ T1381] ? __pfx_worker_thread+0x10/0x10
[ 89.030386][ T1381] ? __pfx_kthread+0x10/0x10
[ 89.030398][ T1381] ret_from_fork+0x514/0xb70
[ 89.030412][ T1381] ? __pfx_ret_from_fork+0x10/0x10
[ 89.030423][ T1381] ? __switch_to+0xc89/0x1420
[ 89.030473][ T1381] ? __pfx_kthread+0x10/0x10
[ 89.030485][ T1381] ret_from_fork_asm+0x1a/0x30
[ 89.030512][ T1381]
[ 89.030659][ T10] FAULT_INJECTION: forcing a failure.
[ 89.030659][ T10] name failslab, interval 1, probability 100, space 0, times 1
[ 89.030675][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full)
[ 89.030686][ T10] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 89.030692][ T10] Workqueue: events drm_fb_helper_damage_work
[ 89.030741][ T10] Call Trace:
[ 89.030746][ T10]
[ 89.030751][ T10] dump_stack_lvl+0xe8/0x150
[ 89.030763][ T10] should_fail_ex+0x410/0x560
[ 89.030778][ T10] should_failslab+0xa8/0x100
[ 89.030787][ T10] __kmalloc_cache_noprof+0xa3/0x600
[ 89.030798][ T10] ? drm_atomic_commit_alloc+0xa9/0x100
[ 89.030808][ T10] ? drm_atomic_commit_alloc+0xa9/0x100
[ 89.030823][ T10] drm_atomic_commit_alloc+0xa9/0x100
[ 89.030879][ T10] drm_atomic_helper_dirtyfb+0x129/0xfd0
[ 89.030910][ T10] ? __lock_acquire+0x747/0x2de0
[ 89.030921][ T10] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 89.030935][ T10] ? do_raw_spin_lock+0x12b/0x2f0
[ 89.030956][ T10] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 89.030973][ T10] drm_fb_helper_damage_work+0x84c/0xf20
[ 89.031002][ T10] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 89.031026][ T10] ? lock_acquire+0x115/0x350
[ 89.031044][ T10] ? rcu_is_watching+0x16/0xb0
[ 89.031060][ T10] ? process_scheduled_works+0x97a/0x1630
[ 89.031074][ T10] process_scheduled_works+0xc3d/0x1630
[ 89.031107][ T10] ? __pfx_process_scheduled_works+0x10/0x10
[ 89.031126][ T10] ? assign_work+0x3cf/0x5d0
[ 89.031144][ T10] worker_thread+0xa47/0xfb0
[ 89.031167][ T10] ? __kthread_parkme+0x71/0x1f0
[ 89.031190][ T10] kthread+0x38b/0x480
[ 89.031201][ T10] ? __pfx_worker_thread+0x10/0x10
[ 89.031215][ T10] ? __pfx_kthread+0x10/0x10
[ 89.031227][ T10] ret_from_fork+0x514/0xb70
[ 89.031240][ T10] ? __pfx_ret_from_fork+0x10/0x10
[ 89.031251][ T10] ? __switch_to+0xc89/0x1420
[ 89.031290][ T10] ? __pfx_kthread+0x10/0x10
[ 89.031305][ T10] ret_from_fork_asm+0x1a/0x30
[ 89.031329][ T10]
[ 89.034540][ T10] ------------[ cut here ]------------
[ 89.034550][ T10] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 89.034559][ T10] WARNING: drivers/gpu/drm/drm_fbdev_shmem.c:118 at drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310, CPU#0: kworker/0:1/10
[ 89.314162][ T10] Modules linked in:
[ 89.316133][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full)
[ 89.320263][ T10] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 89.324700][ T10] Workqueue: events drm_fb_helper_damage_work
[ 89.327744][ T10] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 89.330861][ T10] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 da 26 9a fc 4d 8b 27 48 89 df 4c 89 f6 4c 89 e2 8b 5c 24 04 89 d9 <67> 48 0f b9 3a 89 d8 e9 f7 fe ff ff 89 d9 80 e1 07 fe c1 38 c1 0f
[ 89.339556][ T10] RSP: 0018:ffffc9000023f898 EFLAGS: 00010246
[ 89.342171][ T10] RAX: 1ffff11003a5341a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 89.345400][ T10] RDX: ffff88801f5e2e00 RSI: ffffffff8c79d740 RDI: ffffffff90866ba0
[ 89.349105][ T10] RBP: ffff888000a20008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 89.352567][ T10] R10: dffffc0000000000 R11: fffffbfff1dd61bf R12: ffff88801f5e2e00
[ 89.356062][ T10] R13: dffffc0000000000 R14: ffffffff8c79d740 R15: ffff88801d29a0d0
[ 89.359145][ T10] FS: 0000000000000000(0000) GS:ffff88808c2bb000(0000) knlGS:0000000000000000
[ 89.363101][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 89.366771][ T10] CR2: 0000000000000000 CR3: 000000001fd23000 CR4: 0000000000352ef0
[ 89.370435][ T10] Call Trace:
[ 89.372051][ T10]
[ 89.373470][ T10] drm_fb_helper_damage_work+0x84c/0xf20
[ 89.376098][ T10] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 89.378946][ T10] ? lock_acquire+0x115/0x350
[ 89.381126][ T10] ? rcu_is_watching+0x16/0xb0
[ 89.383341][ T10] ? process_scheduled_works+0x97a/0x1630
[ 89.386076][ T10] process_scheduled_works+0xc3d/0x1630
[ 89.388659][ T10] ? __pfx_process_scheduled_works+0x10/0x10
[ 89.391418][ T10] ? assign_work+0x3cf/0x5d0
[ 89.393852][ T10] worker_thread+0xa47/0xfb0
[ 89.396045][ T10] ? __kthread_parkme+0x71/0x1f0
[ 89.398301][ T10] kthread+0x38b/0x480
[ 89.400112][ T10] ? __pfx_worker_thread+0x10/0x10
[ 89.402316][ T10] ? __pfx_kthread+0x10/0x10
[ 89.404368][ T10] ret_from_fork+0x514/0xb70
[ 89.407977][ T10] ? __pfx_ret_from_fork+0x10/0x10
[ 89.410682][ T10] ? __switch_to+0xc89/0x1420
[ 89.413190][ T10] ? __pfx_kthread+0x10/0x10
[ 89.415187][ T10] ret_from_fork_asm+0x1a/0x30
[ 89.417379][ T10]
[ 89.418655][ T10] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 89.421657][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full)
[ 89.425498][ T10] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 89.429617][ T10] Workqueue: events drm_fb_helper_damage_work
[ 89.432062][ T10] Call Trace:
[ 89.433543][ T10]
[ 89.434796][ T10] vpanic+0x56d/0xa60
[ 89.436520][ T10] ? __pfx__printk+0x10/0x10
[ 89.438557][ T10] ? __pfx_vpanic+0x10/0x10
[ 89.440479][ T10] ? is_bpf_text_address+0x292/0x2b0
[ 89.442725][ T10] ? is_bpf_text_address+0x26/0x2b0
[ 89.444910][ T10] panic+0xc5/0xd0
[ 89.446632][ T10] ? __pfx_panic+0x10/0x10
[ 89.448499][ T10] ? ret_from_fork_asm+0x1a/0x30
[ 89.450586][ T10] __warn+0x315/0x4c0
[ 89.452269][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 89.454913][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 89.457397][ T10] __report_bug+0x276/0x570
[ 89.459294][ T10] ? drm_modeset_acquire_fini+0x27/0x180
[ 89.461797][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 89.464561][ T10] ? __pfx___report_bug+0x10/0x10
[ 89.466692][ T10] ? drm_atomic_helper_dirtyfb+0xf27/0xfd0
[ 89.469109][ T10] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 89.471651][ T10] report_bug_entry+0x19b/0x290
[ 89.473815][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 89.476564][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 89.479309][ T10] handle_bug+0xce/0x200
[ 89.481037][ T10] exc_invalid_op+0x1a/0x50
[ 89.483039][ T10] asm_exc_invalid_op+0x1a/0x20
[ 89.484916][ T10] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 89.487883][ T10] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 da 26 9a fc 4d 8b 27 48 89 df 4c 89 f6 4c 89 e2 8b 5c 24 04 89 d9 <67> 48 0f b9 3a 89 d8 e9 f7 fe ff ff 89 d9 80 e1 07 fe c1 38 c1 0f
[ 89.495684][ T10] RSP: 0018:ffffc9000023f898 EFLAGS: 00010246
[ 89.498352][ T10] RAX: 1ffff11003a5341a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 89.501732][ T10] RDX: ffff88801f5e2e00 RSI: ffffffff8c79d740 RDI: ffffffff90866ba0
[ 89.504995][ T10] RBP: ffff888000a20008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 89.508418][ T10] R10: dffffc0000000000 R11: fffffbfff1dd61bf R12: ffff88801f5e2e00
[ 89.512532][ T10] R13: dffffc0000000000 R14: ffffffff8c79d740 R15: ffff88801d29a0d0
[ 89.515836][ T10] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 89.518622][ T10] drm_fb_helper_damage_work+0x84c/0xf20
[ 89.521236][ T10] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 89.524032][ T10] ? lock_acquire+0x115/0x350
[ 89.525996][ T10] ? rcu_is_watching+0x16/0xb0
[ 89.528046][ T10] ? process_scheduled_works+0x97a/0x1630
[ 89.530937][ T10] process_scheduled_works+0xc3d/0x1630
[ 89.533707][ T10] ? __pfx_process_scheduled_works+0x10/0x10
[ 89.536362][ T10] ? assign_work+0x3cf/0x5d0
[ 89.538351][ T10] worker_thread+0xa47/0xfb0
[ 89.540428][ T10] ? __kthread_parkme+0x71/0x1f0
[ 89.542706][ T10] kthread+0x38b/0x480
[ 89.544473][ T10] ? __pfx_worker_thread+0x10/0x10
[ 89.546742][ T10] ? __pfx_kthread+0x10/0x10
[ 89.549029][ T10] ret_from_fork+0x514/0xb70
[ 89.550998][ T10] ? __pfx_ret_from_fork+0x10/0x10
[ 89.553267][ T10] ? __switch_to+0xc89/0x1420
[ 89.555345][ T10] ? __pfx_kthread+0x10/0x10
[ 89.557413][ T10] ret_from_fork_asm+0x1a/0x30
[ 89.559535][ T10]
[ 89.561342][ T10] Kernel Offset: disabled
[ 89.563169][ T10] Rebooting in 86400 seconds..