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)
socket$phonet_pipe(0x23, 0x5, 0x2)
syz_emit_ethernet(0x2a, &(0x7f0000000000)=ANY=[], 0x0)
[ 135.795857][ T5291] Bluetooth: hci0: command tx timeout
[ 135.821645][ T5327] FAULT_INJECTION: forcing a failure.
[ 135.821645][ T5327] name failslab, interval 1, probability 100, space 0, times 1
[ 135.837676][ T9] FAULT_INJECTION: forcing a failure.
[ 135.837676][ T9] name failslab, interval 1, probability 100, space 0, times 1
[ 135.844207][ T10] FAULT_INJECTION: forcing a failure.
[ 135.844207][ T10] name failslab, interval 1, probability 100, space 0, times 1
[ 135.850444][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full)
[ 135.850464][ T10] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 135.850472][ T10] Workqueue: events nsim_fib_event_work
[ 135.850599][ T10] Call Trace:
[ 135.850607][ T10]
[ 135.850614][ T10] dump_stack_lvl+0xe8/0x150
[ 135.850634][ T10] should_fail_ex+0x40c/0x560
[ 135.850659][ T10] should_failslab+0xa8/0x100
[ 135.850678][ T10] __kmalloc_cache_noprof+0xa8/0x660
[ 135.850691][ T10] ? stack_depot_save_flags+0x33/0x800
[ 135.850705][ T10] ? nsim_fib_event+0xf37/0xa390
[ 135.850717][ T10] ? nsim_fib_event+0xf37/0xa390
[ 135.850734][ T10] nsim_fib_event+0xf37/0xa390
[ 135.850746][ T10] ? worker_thread+0xa47/0xfb0
[ 135.850759][ T10] ? kthread+0x388/0x470
[ 135.850791][ T10] ? __pfx_nsim_fib_event+0x10/0x10
[ 135.850815][ T10] ? kasan_quarantine_put+0xbb/0x1f0
[ 135.850838][ T10] nsim_fib_event_work+0x244/0x3b0
[ 135.850855][ T10] ? __pfx_nsim_fib_event_work+0x10/0x10
[ 135.850870][ T10] ? rcu_is_watching+0x15/0xb0
[ 135.850891][ T10] ? process_scheduled_works+0xa20/0x14e0
[ 135.850905][ T10] process_scheduled_works+0xa8e/0x14e0
[ 135.850935][ T10] ? __pfx_process_scheduled_works+0x10/0x10
[ 135.850953][ T10] ? assign_work+0x3cf/0x5d0
[ 135.850970][ T10] worker_thread+0xa47/0xfb0
[ 135.851000][ T10] kthread+0x388/0x470
[ 135.851017][ T10] ? __pfx_worker_thread+0x10/0x10
[ 135.851030][ T10] ? __pfx_kthread+0x10/0x10
[ 135.851048][ T10] ret_from_fork+0x514/0xb70
[ 135.851068][ T10] ? __pfx_ret_from_fork+0x10/0x10
[ 135.851082][ T10] ? __switch_to+0xc89/0x1420
[ 135.851093][ T10] ? __pfx_kthread+0x10/0x10
[ 135.851107][ T10] ret_from_fork_asm+0x1a/0x30
[ 135.851135][ T10]
[ 135.851317][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 135.851330][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 135.851338][ T9] Workqueue: events drm_fb_helper_damage_work
[ 135.851359][ T9] Call Trace:
[ 135.851363][ T9]
[ 135.851368][ T9] dump_stack_lvl+0xe8/0x150
[ 135.851386][ T9] should_fail_ex+0x40c/0x560
[ 135.851409][ T9] should_failslab+0xa8/0x100
[ 135.851424][ T9] __kmalloc_cache_noprof+0xa8/0x660
[ 135.851439][ T9] ? drm_atomic_commit_alloc+0xa9/0x100
[ 135.851458][ T9] ? drm_atomic_commit_alloc+0xa9/0x100
[ 135.851481][ T9] drm_atomic_commit_alloc+0xa9/0x100
[ 135.851500][ T9] drm_atomic_helper_dirtyfb+0x129/0xfd0
[ 135.851520][ T9] ? __lock_acquire+0x683/0x2cf0
[ 135.851541][ T9] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 135.851569][ T9] ? do_raw_spin_lock+0x12b/0x2f0
[ 135.851590][ T9] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 135.851610][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 135.851635][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 135.851663][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 135.851680][ T9] ? rcu_is_watching+0x15/0xb0
[ 135.851700][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 135.851713][ T9] process_scheduled_works+0xa8e/0x14e0
[ 135.851745][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 135.851762][ T9] ? assign_work+0x3cf/0x5d0
[ 135.851780][ T9] worker_thread+0xa47/0xfb0
[ 135.851812][ T9] kthread+0x388/0x470
[ 135.851831][ T9] ? __pfx_worker_thread+0x10/0x10
[ 135.851843][ T9] ? __pfx_kthread+0x10/0x10
[ 135.851860][ T9] ret_from_fork+0x514/0xb70
[ 135.851881][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 135.851898][ T9] ? __switch_to+0xc89/0x1420
[ 135.851915][ T9] ? __pfx_kthread+0x10/0x10
[ 135.851931][ T9] ret_from_fork_asm+0x1a/0x30
[ 135.851985][ T9]
[ 135.852081][ T9] ------------[ cut here ]------------
[ 136.034833][ T9] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 136.038340][ T9] WARNING: drivers/gpu/drm/drm_fbdev_shmem.c:118 at drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310, CPU#0: kworker/0:0/9
[ 136.044485][ T9] Modules linked in:
[ 136.046550][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 136.050313][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 136.054739][ T9] Workqueue: events drm_fb_helper_damage_work
[ 136.057586][ T9] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 136.060969][ T9] Code: 35 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 1a 5b a4 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
[ 136.070327][ T9] RSP: 0018:ffffc9000022f8b8 EFLAGS: 00010246
[ 136.073733][ T9] RAX: 1ffff11003a4d01a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 136.077922][ T9] RDX: ffff88801fa55da0 RSI: ffffffff8c57c800 RDI: ffffffff90638ee0
[ 136.081707][ T9] RBP: ffff888000890008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 136.085184][ T9] R10: dffffc0000000000 R11: fffffbfff1d94963 R12: ffff88801fa55da0
[ 136.089443][ T9] R13: dffffc0000000000 R14: ffffffff8c57c800 R15: ffff88801d2680d0
[ 136.093434][ T9] FS: 0000000000000000(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000
[ 136.097644][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 136.100844][ T9] CR2: 00007fa546c1b930 CR3: 000000001fa7b000 CR4: 0000000000352ef0
[ 136.104565][ T9] Call Trace:
[ 136.106190][ T9]
[ 136.107644][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 136.110311][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 136.113150][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 136.115873][ T9] ? rcu_is_watching+0x15/0xb0
[ 136.117873][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 136.120401][ T9] process_scheduled_works+0xa8e/0x14e0
[ 136.123305][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 136.126388][ T9] ? assign_work+0x3cf/0x5d0
[ 136.128963][ T9] worker_thread+0xa47/0xfb0
[ 136.131577][ T9] kthread+0x388/0x470
[ 136.133435][ T9] ? __pfx_worker_thread+0x10/0x10
[ 136.135616][ T9] ? __pfx_kthread+0x10/0x10
[ 136.137699][ T9] ret_from_fork+0x514/0xb70
[ 136.140063][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 136.142650][ T9] ? __switch_to+0xc89/0x1420
[ 136.145002][ T9] ? __pfx_kthread+0x10/0x10
[ 136.147002][ T9] ret_from_fork_asm+0x1a/0x30
[ 136.149059][ T9]
[ 136.150301][ T9] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 136.153294][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 136.157343][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 136.162208][ T9] Workqueue: events drm_fb_helper_damage_work
[ 136.164750][ T9] Call Trace:
[ 136.166076][ T9]
[ 136.167375][ T9] vpanic+0x56c/0xa60
[ 136.169166][ T9] ? __pfx__printk+0x10/0x10
[ 136.171309][ T9] ? __pfx_vpanic+0x10/0x10
[ 136.173805][ T9] ? is_bpf_text_address+0x292/0x2b0
[ 136.176648][ T9] ? is_bpf_text_address+0x26/0x2b0
[ 136.179152][ T9] panic+0xc5/0xd0
[ 136.180757][ T9] ? __pfx_panic+0x10/0x10
[ 136.182812][ T9] ? ret_from_fork_asm+0x1a/0x30
[ 136.184898][ T9] __warn+0x315/0x4c0
[ 136.186634][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 136.189652][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 136.193082][ T9] __report_bug+0x276/0x570
[ 136.195539][ T9] ? drm_modeset_acquire_fini+0x27/0x180
[ 136.198785][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 136.201671][ T9] ? __pfx___report_bug+0x10/0x10
[ 136.204213][ T9] ? drm_atomic_helper_dirtyfb+0xf27/0xfd0
[ 136.206983][ T9] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 136.209607][ T9] report_bug_entry+0x19a/0x290
[ 136.211862][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 136.214724][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 136.217780][ T9] handle_bug+0xce/0x200
[ 136.219985][ T9] exc_invalid_op+0x1a/0x50
[ 136.222207][ T9] asm_exc_invalid_op+0x1a/0x20
[ 136.224484][ T9] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 136.227456][ T9] Code: 35 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 1a 5b a4 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
[ 136.238293][ T9] RSP: 0018:ffffc9000022f8b8 EFLAGS: 00010246
[ 136.241547][ T9] RAX: 1ffff11003a4d01a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 136.245066][ T9] RDX: ffff88801fa55da0 RSI: ffffffff8c57c800 RDI: ffffffff90638ee0
[ 136.248683][ T9] RBP: ffff888000890008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 136.252768][ T9] R10: dffffc0000000000 R11: fffffbfff1d94963 R12: ffff88801fa55da0
[ 136.256412][ T9] R13: dffffc0000000000 R14: ffffffff8c57c800 R15: ffff88801d2680d0
[ 136.259937][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 136.263053][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 136.266324][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 136.269401][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 136.271943][ T9] ? rcu_is_watching+0x15/0xb0
[ 136.274169][ T9] ? process_scheduled_works+0xa20/0x14e0
[ 136.276681][ T9] process_scheduled_works+0xa8e/0x14e0
[ 136.279277][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 136.282162][ T9] ? assign_work+0x3cf/0x5d0
[ 136.284474][ T9] worker_thread+0xa47/0xfb0
[ 136.286705][ T9] kthread+0x388/0x470
[ 136.288751][ T9] ? __pfx_worker_thread+0x10/0x10
[ 136.291223][ T9] ? __pfx_kthread+0x10/0x10
[ 136.293481][ T9] ret_from_fork+0x514/0xb70
[ 136.295825][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 136.298205][ T9] ? __switch_to+0xc89/0x1420
[ 136.300399][ T9] ? __pfx_kthread+0x10/0x10
[ 136.302647][ T9] ret_from_fork_asm+0x1a/0x30
[ 136.304806][ T9]
[ 136.306621][ T9] Kernel Offset: disabled
[ 136.308389][ T9] Rebooting in 86400 seconds..