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)
[ 94.588370][ T4645] Bluetooth: hci0: command tx timeout
[ 94.682965][ T4695] FAULT_INJECTION: forcing a failure.
[ 94.682965][ T4695] name failslab, interval 1, probability 100, space 0, times 1
[ 94.682991][ T4695] CPU: 0 UID: 0 PID: 4695 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full)
[ 94.683004][ T4695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 94.683011][ T4695] Workqueue: events drm_fb_helper_damage_work
[ 94.683099][ T4695] Call Trace:
[ 94.683104][ T4695]
[ 94.683108][ T4695] dump_stack_lvl+0xe8/0x150
[ 94.683130][ T4695] should_fail_ex+0x410/0x560
[ 94.683222][ T4695] should_failslab+0xa8/0x100
[ 94.683238][ T4695] __kmalloc_cache_noprof+0xa3/0x600
[ 94.683256][ T4695] ? drm_atomic_commit_alloc+0xa9/0x100
[ 94.683279][ T4695] ? drm_atomic_commit_alloc+0xa9/0x100
[ 94.683298][ T4695] drm_atomic_commit_alloc+0xa9/0x100
[ 94.683313][ T4695] drm_atomic_helper_dirtyfb+0x129/0xfd0
[ 94.683338][ T4695] ? __lock_acquire+0x747/0x2de0
[ 94.683355][ T4695] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 94.683377][ T4695] ? do_raw_spin_lock+0x12b/0x2f0
[ 94.683399][ T4695] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 94.683416][ T4695] drm_fb_helper_damage_work+0x84c/0xf20
[ 94.683435][ T4695] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 94.683461][ T4695] ? lock_acquire+0x115/0x350
[ 94.683478][ T4695] ? rcu_is_watching+0x16/0xb0
[ 94.683494][ T4695] ? process_scheduled_works+0x97a/0x1630
[ 94.683510][ T4695] process_scheduled_works+0xc3d/0x1630
[ 94.683568][ T4695] ? __pfx_process_scheduled_works+0x10/0x10
[ 94.683588][ T4695] ? assign_work+0x3cf/0x5d0
[ 94.683605][ T4695] worker_thread+0xa47/0xfb0
[ 94.683629][ T4695] ? __kthread_parkme+0x71/0x1f0
[ 94.683658][ T4695] kthread+0x38b/0x480
[ 94.683700][ T4695] ? __pfx_worker_thread+0x10/0x10
[ 94.683713][ T4695] ? __pfx_kthread+0x10/0x10
[ 94.683724][ T4695] ret_from_fork+0x514/0xb70
[ 94.683736][ T4695] ? __pfx_ret_from_fork+0x10/0x10
[ 94.683749][ T4695] ? __switch_to+0xc89/0x1420
[ 94.683767][ T4695] ? __pfx_kthread+0x10/0x10
[ 94.683780][ T4695] ret_from_fork_asm+0x1a/0x30
[ 94.683805][ T4695]
[ 94.683885][ T4695] ------------[ cut here ]------------
[ 94.684805][ T4695] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 94.684815][ T4695] WARNING: drivers/gpu/drm/drm_fbdev_shmem.c:118 at drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310, CPU#0: kworker/0:4/4695
[ 94.789255][ T4695] Modules linked in:
[ 94.791778][ T4695] CPU: 0 UID: 0 PID: 4695 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full)
[ 94.795817][ T4695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 94.800008][ T4695] Workqueue: events drm_fb_helper_damage_work
[ 94.802551][ T4695] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 94.805460][ T4695] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 fa 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
[ 94.813487][ T4695] RSP: 0018:ffffc900024f7898 EFLAGS: 00010246
[ 94.816202][ T4695] RAX: 1ffff11003f1141a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 94.819651][ T4695] RDX: ffff88801f896700 RSI: ffffffff8c79d740 RDI: ffffffff90866ba0
[ 94.822975][ T4695] RBP: ffff888000c76008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 94.826458][ T4695] R10: dffffc0000000000 R11: fffffbfff1dd61bf R12: ffff88801f896700
[ 94.829721][ T4695] R13: dffffc0000000000 R14: ffffffff8c79d740 R15: ffff88801f88a0d0
[ 94.833026][ T4695] FS: 0000000000000000(0000) GS:ffff88808c2bb000(0000) knlGS:0000000000000000
[ 94.837267][ T4695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 94.840458][ T4695] CR2: 00007f0a23a15100 CR3: 000000004338a000 CR4: 0000000000352ef0
[ 94.843730][ T4695] Call Trace:
[ 94.845216][ T4695]
[ 94.846464][ T4695] drm_fb_helper_damage_work+0x84c/0xf20
[ 94.848824][ T4695] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 94.851298][ T4695] ? lock_acquire+0x115/0x350
[ 94.853186][ T4695] ? rcu_is_watching+0x16/0xb0
[ 94.855282][ T4695] ? process_scheduled_works+0x97a/0x1630
[ 94.857858][ T4695] process_scheduled_works+0xc3d/0x1630
[ 94.860166][ T4695] ? __pfx_process_scheduled_works+0x10/0x10
[ 94.862662][ T4695] ? assign_work+0x3cf/0x5d0
[ 94.864696][ T4695] worker_thread+0xa47/0xfb0
[ 94.866592][ T4695] ? __kthread_parkme+0x71/0x1f0
[ 94.868710][ T4695] kthread+0x38b/0x480
[ 94.870496][ T4695] ? __pfx_worker_thread+0x10/0x10
[ 94.872759][ T4695] ? __pfx_kthread+0x10/0x10
[ 94.874760][ T4695] ret_from_fork+0x514/0xb70
[ 94.876724][ T4695] ? __pfx_ret_from_fork+0x10/0x10
[ 94.878873][ T4695] ? __switch_to+0xc89/0x1420
[ 94.880834][ T4695] ? __pfx_kthread+0x10/0x10
[ 94.882769][ T4695] ret_from_fork_asm+0x1a/0x30
[ 94.885590][ T4695]
[ 94.886929][ T4695] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 94.890077][ T4695] CPU: 0 UID: 0 PID: 4695 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full)
[ 94.893870][ T4695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 94.898164][ T4695] Workqueue: events drm_fb_helper_damage_work
[ 94.900648][ T4695] Call Trace:
[ 94.902034][ T4695]
[ 94.903293][ T4695] vpanic+0x56d/0xa60
[ 94.905068][ T4695] ? __pfx__printk+0x10/0x10
[ 94.907068][ T4695] ? __pfx_vpanic+0x10/0x10
[ 94.909064][ T4695] ? is_bpf_text_address+0x292/0x2b0
[ 94.911231][ T4695] ? is_bpf_text_address+0x26/0x2b0
[ 94.913393][ T4695] panic+0xc5/0xd0
[ 94.915067][ T4695] ? __pfx_panic+0x10/0x10
[ 94.916981][ T4695] ? ret_from_fork_asm+0x1a/0x30
[ 94.919133][ T4695] __warn+0x315/0x4c0
[ 94.922446][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 94.926613][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 94.929171][ T4695] __report_bug+0x276/0x570
[ 94.931141][ T4695] ? drm_modeset_acquire_fini+0x27/0x180
[ 94.933563][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 94.936349][ T4695] ? __pfx___report_bug+0x10/0x10
[ 94.938485][ T4695] ? drm_atomic_helper_dirtyfb+0xf27/0xfd0
[ 94.941017][ T4695] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 94.943646][ T4695] report_bug_entry+0x19b/0x290
[ 94.945782][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 94.948627][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 94.951447][ T4695] handle_bug+0xce/0x200
[ 94.953382][ T4695] exc_invalid_op+0x1a/0x50
[ 94.955325][ T4695] asm_exc_invalid_op+0x1a/0x20
[ 94.957504][ T4695] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 94.960566][ T4695] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 fa 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
[ 94.967656][ T4695] RSP: 0018:ffffc900024f7898 EFLAGS: 00010246
[ 94.970003][ T4695] RAX: 1ffff11003f1141a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 94.973173][ T4695] RDX: ffff88801f896700 RSI: ffffffff8c79d740 RDI: ffffffff90866ba0
[ 94.976513][ T4695] RBP: ffff888000c76008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 94.979990][ T4695] R10: dffffc0000000000 R11: fffffbfff1dd61bf R12: ffff88801f896700
[ 94.983426][ T4695] R13: dffffc0000000000 R14: ffffffff8c79d740 R15: ffff88801f88a0d0
[ 94.986800][ T4695] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 94.989613][ T4695] drm_fb_helper_damage_work+0x84c/0xf20
[ 94.992158][ T4695] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 94.994939][ T4695] ? lock_acquire+0x115/0x350
[ 94.997175][ T4695] ? rcu_is_watching+0x16/0xb0
[ 94.999178][ T4695] ? process_scheduled_works+0x97a/0x1630
[ 95.001532][ T4695] process_scheduled_works+0xc3d/0x1630
[ 95.003778][ T4695] ? __pfx_process_scheduled_works+0x10/0x10
[ 95.006130][ T4695] ? assign_work+0x3cf/0x5d0
[ 95.008166][ T4695] worker_thread+0xa47/0xfb0
[ 95.010142][ T4695] ? __kthread_parkme+0x71/0x1f0
[ 95.012328][ T4695] kthread+0x38b/0x480
[ 95.014078][ T4695] ? __pfx_worker_thread+0x10/0x10
[ 95.016312][ T4695] ? __pfx_kthread+0x10/0x10
[ 95.018329][ T4695] ret_from_fork+0x514/0xb70
[ 95.020348][ T4695] ? __pfx_ret_from_fork+0x10/0x10
[ 95.022392][ T4695] ? __switch_to+0xc89/0x1420
[ 95.024315][ T4695] ? __pfx_kthread+0x10/0x10
[ 95.026168][ T4695] ret_from_fork_asm+0x1a/0x30
[ 95.028152][ T4695]
[ 95.029792][ T4695] Kernel Offset: disabled
[ 95.031632][ T4695] Rebooting in 86400 seconds..