program:
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_route_sched_retired(0xffffffffffffffff, 0x0, 0x0)
ioctl$NS_GET_OWNER_UID(0xffffffffffffffff, 0xb704, 0x0)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$SEG6(0x0, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./debug\x00', &(0x7f0000000300)='debugfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./debug/failslab/task-filter\x00', 0x1, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./debug/failslab/probability\x00', 0x1, 0x50)
write(r1, &(0x7f0000000100)='N', 0x1)
write(r2, &(0x7f0000000100)='100', 0x3)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600003, 0x19)
[ 77.299191][ T4647] Bluetooth: hci0: command tx timeout
[ 77.301982][ T1331] ieee802154 phy0 wpan0: encryption failed: -22
[ 77.302060][ T1331] ieee802154 phy1 wpan1: encryption failed: -22
[ 77.505051][ T932] FAULT_INJECTION: forcing a failure.
[ 77.505051][ T932] name failslab, interval 1, probability 100, space 0, times 1
[ 77.505080][ T932] CPU: 0 UID: 0 PID: 932 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 77.505098][ T932] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 77.505105][ T932] Workqueue: events drm_fb_helper_damage_work
[ 77.505263][ T932] Call Trace:
[ 77.505268][ T932]
[ 77.505274][ T932] dump_stack_lvl+0xe8/0x150
[ 77.505320][ T932] should_fail_ex+0x410/0x560
[ 77.505373][ T932] should_failslab+0xa8/0x100
[ 77.505402][ T932] __kmalloc_cache_noprof+0xa3/0x600
[ 77.505419][ T932] ? drm_atomic_commit_alloc+0xa9/0x100
[ 77.505433][ T932] ? drm_atomic_commit_alloc+0xa9/0x100
[ 77.505450][ T932] drm_atomic_commit_alloc+0xa9/0x100
[ 77.505464][ T932] drm_atomic_helper_dirtyfb+0x129/0xfd0
[ 77.505485][ T932] ? __lock_acquire+0x747/0x2de0
[ 77.505511][ T932] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 77.505537][ T932] ? do_raw_spin_lock+0x12b/0x2f0
[ 77.505558][ T932] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 77.505578][ T932] drm_fb_helper_damage_work+0x84c/0xf20
[ 77.505595][ T932] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 77.505618][ T932] ? lock_acquire+0x115/0x350
[ 77.505635][ T932] ? rcu_is_watching+0x16/0xb0
[ 77.505650][ T932] ? process_scheduled_works+0x97a/0x1630
[ 77.505667][ T932] process_scheduled_works+0xc3d/0x1630
[ 77.505720][ T932] ? __pfx_process_scheduled_works+0x10/0x10
[ 77.505745][ T932] ? assign_work+0x3cf/0x5d0
[ 77.505762][ T932] worker_thread+0xa47/0xfb0
[ 77.505795][ T932] kthread+0x38b/0x480
[ 77.505807][ T932] ? __pfx_worker_thread+0x10/0x10
[ 77.505821][ T932] ? __pfx_kthread+0x10/0x10
[ 77.505834][ T932] ret_from_fork+0x514/0xb70
[ 77.505847][ T932] ? __pfx_ret_from_fork+0x10/0x10
[ 77.505858][ T932] ? __switch_to+0xc89/0x1420
[ 77.505878][ T932] ? __pfx_kthread+0x10/0x10
[ 77.505890][ T932] ret_from_fork_asm+0x1a/0x30
[ 77.505917][ T932]
[ 77.506012][ T932] ------------[ cut here ]------------
[ 77.506018][ T932] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 77.506025][ T932] WARNING: drivers/gpu/drm/drm_fbdev_shmem.c:118 at drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310, CPU#0: kworker/0:3/932
[ 77.602322][ T932] Modules linked in:
[ 77.604036][ T932] CPU: 0 UID: 0 PID: 932 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 77.607998][ T932] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 77.612388][ T932] Workqueue: events drm_fb_helper_damage_work
[ 77.615097][ T932] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 77.618231][ T932] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 6a 9d 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
[ 77.626713][ T932] RSP: 0018:ffffc9000499f898 EFLAGS: 00010246
[ 77.629479][ T932] RAX: 1ffff11003ed841a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 77.632994][ T932] RDX: ffff88801f391140 RSI: ffffffff8c79ca40 RDI: ffffffff908642b0
[ 77.636218][ T932] RBP: ffff88801d204008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 77.639454][ T932] R10: dffffc0000000000 R11: fffffbfff1dd617f R12: ffff88801f391140
[ 77.642545][ T932] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f6c20d0
[ 77.645813][ T932] FS: 0000000000000000(0000) GS:ffff88808c2c6000(0000) knlGS:0000000000000000
[ 77.649469][ T932] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 77.652160][ T932] CR2: 0000000000000000 CR3: 0000000013276000 CR4: 0000000000352ef0
[ 77.655392][ T932] Call Trace:
[ 77.656755][ T932]
[ 77.658090][ T932] drm_fb_helper_damage_work+0x84c/0xf20
[ 77.660334][ T932] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 77.662720][ T932] ? lock_acquire+0x115/0x350
[ 77.664638][ T932] ? rcu_is_watching+0x16/0xb0
[ 77.666693][ T932] ? process_scheduled_works+0x97a/0x1630
[ 77.669184][ T932] process_scheduled_works+0xc3d/0x1630
[ 77.671415][ T932] ? __pfx_process_scheduled_works+0x10/0x10
[ 77.673856][ T932] ? assign_work+0x3cf/0x5d0
[ 77.675822][ T932] worker_thread+0xa47/0xfb0
[ 77.677935][ T932] kthread+0x38b/0x480
[ 77.679660][ T932] ? __pfx_worker_thread+0x10/0x10
[ 77.681876][ T932] ? __pfx_kthread+0x10/0x10
[ 77.683660][ T932] ret_from_fork+0x514/0xb70
[ 77.685418][ T932] ? __pfx_ret_from_fork+0x10/0x10
[ 77.687733][ T932] ? __switch_to+0xc89/0x1420
[ 77.689843][ T932] ? __pfx_kthread+0x10/0x10
[ 77.692004][ T932] ret_from_fork_asm+0x1a/0x30
[ 77.694105][ T932]
[ 77.695440][ T932] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 77.698655][ T932] CPU: 0 UID: 0 PID: 932 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full)
[ 77.702356][ T932] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 77.706255][ T932] Workqueue: events drm_fb_helper_damage_work
[ 77.708962][ T932] Call Trace:
[ 77.710613][ T932]
[ 77.712103][ T932] vpanic+0x56d/0xa60
[ 77.714204][ T932] ? __pfx__printk+0x10/0x10
[ 77.716608][ T932] ? __pfx_vpanic+0x10/0x10
[ 77.718620][ T932] ? is_bpf_text_address+0x292/0x2b0
[ 77.720938][ T932] ? is_bpf_text_address+0x26/0x2b0
[ 77.723170][ T932] panic+0xc5/0xd0
[ 77.724757][ T932] ? __pfx_panic+0x10/0x10
[ 77.726520][ T932] ? ret_from_fork_asm+0x1a/0x30
[ 77.728693][ T932] __warn+0x315/0x4c0
[ 77.730487][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 77.733406][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 77.736190][ T932] __report_bug+0x276/0x570
[ 77.738329][ T932] ? drm_modeset_acquire_fini+0x27/0x180
[ 77.740806][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 77.743648][ T932] ? __pfx___report_bug+0x10/0x10
[ 77.745890][ T932] ? drm_atomic_helper_dirtyfb+0xf27/0xfd0
[ 77.748507][ T932] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 77.751275][ T932] report_bug_entry+0x19b/0x290
[ 77.753442][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 77.756216][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 77.758935][ T932] handle_bug+0xce/0x200
[ 77.760819][ T932] exc_invalid_op+0x1a/0x50
[ 77.762827][ T932] asm_exc_invalid_op+0x1a/0x20
[ 77.764935][ T932] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 77.767934][ T932] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 6a 9d 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
[ 77.776462][ T932] RSP: 0018:ffffc9000499f898 EFLAGS: 00010246
[ 77.778856][ T932] RAX: 1ffff11003ed841a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 77.782285][ T932] RDX: ffff88801f391140 RSI: ffffffff8c79ca40 RDI: ffffffff908642b0
[ 77.785775][ T932] RBP: ffff88801d204008 R08: 0000000000000dc0 R09: 00000000ffffffff
[ 77.789310][ T932] R10: dffffc0000000000 R11: fffffbfff1dd617f R12: ffff88801f391140
[ 77.792989][ T932] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f6c20d0
[ 77.796508][ T932] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 77.799275][ T932] drm_fb_helper_damage_work+0x84c/0xf20
[ 77.801725][ T932] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 77.804444][ T932] ? lock_acquire+0x115/0x350
[ 77.806556][ T932] ? rcu_is_watching+0x16/0xb0
[ 77.808800][ T932] ? process_scheduled_works+0x97a/0x1630
[ 77.811399][ T932] process_scheduled_works+0xc3d/0x1630
[ 77.813869][ T932] ? __pfx_process_scheduled_works+0x10/0x10
[ 77.816924][ T932] ? assign_work+0x3cf/0x5d0
[ 77.819204][ T932] worker_thread+0xa47/0xfb0
[ 77.821364][ T932] kthread+0x38b/0x480
[ 77.823214][ T932] ? __pfx_worker_thread+0x10/0x10
[ 77.825498][ T932] ? __pfx_kthread+0x10/0x10
[ 77.827596][ T932] ret_from_fork+0x514/0xb70
[ 77.829715][ T932] ? __pfx_ret_from_fork+0x10/0x10
[ 77.831951][ T932] ? __switch_to+0xc89/0x1420
[ 77.834148][ T932] ? __pfx_kthread+0x10/0x10
[ 77.836237][ T932] ret_from_fork_asm+0x1a/0x30
[ 77.838231][ T932]
[ 77.840412][ T932] Kernel Offset: disabled
[ 77.842093][ T932] Rebooting in 86400 seconds..