program:
ioctl(0xffffffffffffffff, 0xc138fd03, &(0x7f0000000000))
mount(0x0, 0x0, 0x0, 0x0, 0x0)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
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, 0x50)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./tracing\x00', &(0x7f00000000c0)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./tracing/instances/inst1\x00', 0x1ff)
write(r0, &(0x7f0000000100)='N', 0x1)
write(r1, &(0x7f0000000100)='1', 0x1)
r2 = socket$inet6_mptcp(0xa, 0x1, 0x106)
getsockopt$inet6_int(r2, 0x29, 0x4b, 0x0, 0x0)
[ 130.060866][ T4649] Bluetooth: hci0: command tx timeout
[ 130.290114][ T1254] FAULT_INJECTION: forcing a failure.
[ 130.290114][ T1254] name failslab, interval 1, probability 1, space 0, times 1
[ 130.290142][ T1254] CPU: 0 UID: 0 PID: 1254 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 130.290156][ T1254] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 130.290163][ T1254] Workqueue: events drm_fb_helper_damage_work
[ 130.290265][ T1254] Call Trace:
[ 130.290280][ T1254]
[ 130.290293][ T1254] dump_stack_lvl+0xe8/0x150
[ 130.290323][ T1254] should_fail_ex+0x410/0x560
[ 130.290344][ T1254] should_failslab+0xa8/0x100
[ 130.290370][ T1254] __kmalloc_noprof+0xfe/0x720
[ 130.290395][ T1254] ? __kmalloc_noprof+0x1ab/0x720
[ 130.290445][ T1254] ? drm_atomic_commit_init+0x10f/0x370
[ 130.290460][ T1254] ? drm_atomic_commit_init+0x10f/0x370
[ 130.290478][ T1254] drm_atomic_commit_init+0x10f/0x370
[ 130.290493][ T1254] drm_atomic_commit_alloc+0xbc/0x100
[ 130.290509][ T1254] drm_atomic_helper_dirtyfb+0x129/0xfd0
[ 130.290528][ T1254] ? __lock_acquire+0x747/0x2de0
[ 130.290556][ T1254] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 130.290583][ T1254] ? do_raw_spin_lock+0x12b/0x2f0
[ 130.290607][ T1254] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 130.290628][ T1254] drm_fb_helper_damage_work+0x84c/0xf20
[ 130.290646][ T1254] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 130.290671][ T1254] ? lock_acquire+0x115/0x350
[ 130.290687][ T1254] ? rcu_is_watching+0x16/0xb0
[ 130.290713][ T1254] ? process_scheduled_works+0x97a/0x1630
[ 130.290738][ T1254] process_scheduled_works+0xc3d/0x1630
[ 130.290771][ T1254] ? __pfx_process_scheduled_works+0x10/0x10
[ 130.290791][ T1254] ? assign_work+0x3cf/0x5d0
[ 130.290808][ T1254] worker_thread+0xa47/0xfb0
[ 130.290833][ T1254] ? __kthread_parkme+0x71/0x1f0
[ 130.290855][ T1254] kthread+0x38b/0x480
[ 130.290868][ T1254] ? __pfx_worker_thread+0x10/0x10
[ 130.290881][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.290894][ T1254] ret_from_fork+0x514/0xb70
[ 130.290917][ T1254] ? __pfx_ret_from_fork+0x10/0x10
[ 130.290928][ T1254] ? __switch_to+0xc89/0x1420
[ 130.290946][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.290959][ T1254] ret_from_fork_asm+0x1a/0x30
[ 130.290993][ T1254]
[ 130.293074][ T1254] ------------[ cut here ]------------
[ 130.293084][ T1254] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 130.293093][ T1254] WARNING: drivers/gpu/drm/drm_fbdev_shmem.c:118 at drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310, CPU#0: kworker/0:3/1254
[ 130.401216][ T1254] Modules linked in:
[ 130.403021][ T1254] CPU: 0 UID: 0 PID: 1254 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 130.407112][ T1254] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 130.411110][ T1254] Workqueue: events drm_fb_helper_damage_work
[ 130.413655][ T1254] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 130.416867][ T1254] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 2a 9f 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
[ 130.425425][ T1254] RSP: 0018:ffffc9000239f898 EFLAGS: 00010246
[ 130.428353][ T1254] RAX: 1ffff11003ed441a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 130.431461][ T1254] RDX: ffff88801f5246c0 RSI: ffffffff8c79ca40 RDI: ffffffff908642a0
[ 130.434598][ T1254] RBP: ffff88801d214008 R08: ffffffff907a627f R09: 1ffffffff20f4c4f
[ 130.437919][ T1254] R10: dffffc0000000000 R11: fffffbfff20f4c50 R12: ffff88801f5246c0
[ 130.441128][ T1254] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f6a20d0
[ 130.444394][ T1254] FS: 0000000000000000(0000) GS:ffff88808c2c6000(0000) knlGS:0000000000000000
[ 130.448047][ T1254] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 130.450873][ T1254] CR2: 00007f5eb973be40 CR3: 00000000434ad000 CR4: 0000000000352ef0
[ 130.454168][ T1254] Call Trace:
[ 130.455604][ T1254]
[ 130.457066][ T1254] drm_fb_helper_damage_work+0x84c/0xf20
[ 130.459543][ T1254] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 130.462191][ T1254] ? lock_acquire+0x115/0x350
[ 130.464177][ T1254] ? rcu_is_watching+0x16/0xb0
[ 130.466651][ T1254] ? process_scheduled_works+0x97a/0x1630
[ 130.469141][ T1254] process_scheduled_works+0xc3d/0x1630
[ 130.471591][ T1254] ? __pfx_process_scheduled_works+0x10/0x10
[ 130.474213][ T1254] ? assign_work+0x3cf/0x5d0
[ 130.476271][ T1254] worker_thread+0xa47/0xfb0
[ 130.478350][ T1254] ? __kthread_parkme+0x71/0x1f0
[ 130.480446][ T1254] kthread+0x38b/0x480
[ 130.482393][ T1254] ? __pfx_worker_thread+0x10/0x10
[ 130.484735][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.486958][ T1254] ret_from_fork+0x514/0xb70
[ 130.489043][ T1254] ? __pfx_ret_from_fork+0x10/0x10
[ 130.491349][ T1254] ? __switch_to+0xc89/0x1420
[ 130.493469][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.495555][ T1254] ret_from_fork_asm+0x1a/0x30
[ 130.497802][ T1254]
[ 130.499197][ T1254] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 130.502452][ T1254] CPU: 0 UID: 0 PID: 1254 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 130.506535][ T1254] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 130.510811][ T1254] Workqueue: events drm_fb_helper_damage_work
[ 130.513505][ T1254] Call Trace:
[ 130.515002][ T1254]
[ 130.516231][ T1254] vpanic+0x56d/0xa60
[ 130.517977][ T1254] ? __pfx__printk+0x10/0x10
[ 130.520027][ T1254] ? __pfx_vpanic+0x10/0x10
[ 130.522105][ T1254] ? is_bpf_text_address+0x292/0x2b0
[ 130.524288][ T1254] ? is_bpf_text_address+0x26/0x2b0
[ 130.526548][ T1254] panic+0xc5/0xd0
[ 130.528173][ T1254] ? __pfx_panic+0x10/0x10
[ 130.530030][ T1254] ? ret_from_fork_asm+0x1a/0x30
[ 130.532273][ T1254] __warn+0x315/0x4c0
[ 130.534028][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 130.536736][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 130.539827][ T1254] __report_bug+0x276/0x570
[ 130.541898][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 130.544689][ T1254] ? __pfx___report_bug+0x10/0x10
[ 130.546841][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 130.549486][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 130.552334][ T1254] report_bug_entry+0x19b/0x290
[ 130.554547][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 130.557179][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 130.559882][ T1254] handle_bug+0xce/0x200
[ 130.561776][ T1254] exc_invalid_op+0x1a/0x50
[ 130.563834][ T1254] asm_exc_invalid_op+0x1a/0x20
[ 130.565988][ T1254] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 130.569181][ T1254] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 2a 9f 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
[ 130.577727][ T1254] RSP: 0018:ffffc9000239f898 EFLAGS: 00010246
[ 130.580557][ T1254] RAX: 1ffff11003ed441a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 130.584302][ T1254] RDX: ffff88801f5246c0 RSI: ffffffff8c79ca40 RDI: ffffffff908642a0
[ 130.587996][ T1254] RBP: ffff88801d214008 R08: ffffffff907a627f R09: 1ffffffff20f4c4f
[ 130.591650][ T1254] R10: dffffc0000000000 R11: fffffbfff20f4c50 R12: ffff88801f5246c0
[ 130.594907][ T1254] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f6a20d0
[ 130.598390][ T1254] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 130.601221][ T1254] drm_fb_helper_damage_work+0x84c/0xf20
[ 130.603733][ T1254] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 130.606461][ T1254] ? lock_acquire+0x115/0x350
[ 130.608568][ T1254] ? rcu_is_watching+0x16/0xb0
[ 130.610705][ T1254] ? process_scheduled_works+0x97a/0x1630
[ 130.613615][ T1254] process_scheduled_works+0xc3d/0x1630
[ 130.616402][ T1254] ? __pfx_process_scheduled_works+0x10/0x10
[ 130.619265][ T1254] ? assign_work+0x3cf/0x5d0
[ 130.621248][ T1254] worker_thread+0xa47/0xfb0
[ 130.623378][ T1254] ? __kthread_parkme+0x71/0x1f0
[ 130.625584][ T1254] kthread+0x38b/0x480
[ 130.627403][ T1254] ? __pfx_worker_thread+0x10/0x10
[ 130.629859][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.632420][ T1254] ret_from_fork+0x514/0xb70
[ 130.634508][ T1254] ? __pfx_ret_from_fork+0x10/0x10
[ 130.636781][ T1254] ? __switch_to+0xc89/0x1420
[ 130.639060][ T1254] ? __pfx_kthread+0x10/0x10
[ 130.641110][ T1254] ret_from_fork_asm+0x1a/0x30
[ 130.643189][ T1254]
[ 130.646156][ T1254] Kernel Offset: disabled
[ 130.648163][ T1254] Rebooting in 86400 seconds..