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$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x4001})
r2 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFADDR(r2, 0x8916, &(0x7f0000000080)={'syzkaller0\x00', {0x2, 0x0, @rand_addr=0xac140001}})
ioctl$sock_inet_SIOCSIFFLAGS(r2, 0x8914, &(0x7f00000000c0)={'syzkaller0\x00', 0x1})
bind(0xffffffffffffffff, &(0x7f0000000000)=@in={0x2, 0x3210, @rand_addr=0xac140001}, 0x10)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./debug/failslab/probability\x00', 0x1, 0x50)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./tracing\x00', &(0x7f00000000c0)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./tracing/instances/inst1\x00', 0x1ff)
write(r0, &(0x7f0000000100)='N', 0x1)
write(r3, &(0x7f0000000100)='1', 0x1)
getsockopt$inet6_int(0xffffffffffffffff, 0x29, 0x4b, 0x0, 0x0)
[ 76.191066][ T4648] Bluetooth: hci0: command tx timeout
[ 76.339781][ T5313] FAULT_INJECTION: forcing a failure.
[ 76.339781][ T5313] name failslab, interval 1, probability 1, space 0, times 1
[ 76.339826][ T5313] CPU: 0 UID: 0 PID: 5313 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 76.339842][ T5313] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.339850][ T5313] Call Trace:
[ 76.339866][ T5313]
[ 76.339885][ T5313] dump_stack_lvl+0xe8/0x150
[ 76.339934][ T5313] should_fail_ex+0x410/0x560
[ 76.339977][ T5313] should_failslab+0xa8/0x100
[ 76.340004][ T5313] ? trace_create_new_event+0x26d/0x7a0
[ 76.340022][ T5313] kmem_cache_alloc_noprof+0xa1/0x600
[ 76.340034][ T5313] ? __kmalloc_cache_noprof+0x14d/0x600
[ 76.340046][ T5313] ? trace_create_new_event+0x26d/0x7a0
[ 76.340061][ T5313] trace_create_new_event+0x26d/0x7a0
[ 76.340076][ T5313] ? __pfx_trace_create_new_event+0x10/0x10
[ 76.340095][ T5313] event_trace_add_tracer+0x169/0x3b0
[ 76.340111][ T5313] trace_array_create_dir+0x77/0x160
[ 76.340127][ T5313] trace_array_create_systems+0xb3c/0xe60
[ 76.340145][ T5313] instance_mkdir+0xd5/0x140
[ 76.340163][ T5313] tracefs_syscall_mkdir+0x11a/0x190
[ 76.340180][ T5313] ? __pfx_tracefs_syscall_mkdir+0x10/0x10
[ 76.340196][ T5313] ? generic_permission+0x2bf/0x670
[ 76.340218][ T5313] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 76.340234][ T5313] vfs_mkdir+0x40c/0x620
[ 76.340255][ T5313] filename_mkdirat+0x285/0x510
[ 76.340277][ T5313] ? __pfx_filename_mkdirat+0x10/0x10
[ 76.340295][ T5313] ? do_getname+0x151/0x250
[ 76.340309][ T5313] __se_sys_mkdirat+0x35/0x150
[ 76.340329][ T5313] do_syscall_64+0x166/0x520
[ 76.340384][ T5313] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 76.340398][ T5313] ? clear_bhb_loop+0x70/0xc0
[ 76.340415][ T5313] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 76.340426][ T5313] RIP: 0033:0x7f9939b9e159
[ 76.340439][ T5313] 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
[ 76.340467][ T5313] RSP: 002b:00007f993a9eafe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[ 76.340483][ T5313] RAX: ffffffffffffffda RBX: 00007f9939e25fa0 RCX: 00007f9939b9e159
[ 76.340493][ T5313] RDX: 00000000000001ff RSI: 0000200000000100 RDI: ffffffffffffff9c
[ 76.340501][ T5313] RBP: 00007f9939c3503b R08: 0000000000000000 R09: 0000000000000000
[ 76.340508][ T5313] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 76.340515][ T5313] R13: 00007f9939e26038 R14: 00007f9939e25fa0 R15: 00007ffc812643f8
[ 76.340535][ T5313]
[ 76.411154][ T9] FAULT_INJECTION: forcing a failure.
[ 76.411154][ T9] name failslab, interval 1, probability 1, space 0, times 1
[ 76.411179][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 76.411193][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.411200][ T9] Workqueue: events drm_fb_helper_damage_work
[ 76.411219][ T9] Call Trace:
[ 76.411224][ T9]
[ 76.411231][ T9] dump_stack_lvl+0xe8/0x150
[ 76.411250][ T9] should_fail_ex+0x410/0x560
[ 76.411269][ T9] should_failslab+0xa8/0x100
[ 76.411281][ T9] __kmalloc_cache_noprof+0xa3/0x600
[ 76.411297][ T9] ? drm_atomic_helper_crtc_duplicate_state+0x72/0xb0
[ 76.411312][ T9] ? drm_atomic_helper_crtc_duplicate_state+0x72/0xb0
[ 76.411332][ T9] drm_atomic_helper_crtc_duplicate_state+0x72/0xb0
[ 76.411347][ T9] drm_atomic_get_crtc_state+0x1b3/0x570
[ 76.411365][ T9] drm_atomic_get_plane_state+0x4a2/0x720
[ 76.411382][ T9] drm_atomic_helper_dirtyfb+0xd99/0xfd0
[ 76.411406][ T9] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 76.411453][ T9] ? do_raw_spin_lock+0x12b/0x2f0
[ 76.411480][ T9] drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
[ 76.411499][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 76.411518][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 76.411538][ T9] ? lock_acquire+0x115/0x350
[ 76.411555][ T9] ? rcu_is_watching+0x16/0xb0
[ 76.411578][ T9] ? process_scheduled_works+0x97a/0x1630
[ 76.411594][ T9] process_scheduled_works+0xc3d/0x1630
[ 76.411628][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.411647][ T9] ? assign_work+0x3cf/0x5d0
[ 76.411666][ T9] worker_thread+0xa47/0xfb0
[ 76.411689][ T9] kthread+0x38b/0x480
[ 76.411720][ T9] ? __pfx_worker_thread+0x10/0x10
[ 76.411731][ T9] ? __pfx_kthread+0x10/0x10
[ 76.411739][ T9] ret_from_fork+0x514/0xb70
[ 76.411748][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 76.411755][ T9] ? __switch_to+0xc89/0x1420
[ 76.411767][ T9] ? __pfx_kthread+0x10/0x10
[ 76.411776][ T9] ret_from_fork_asm+0x1a/0x30
[ 76.411801][ T9]
[ 76.412116][ T9] ------------[ cut here ]------------
[ 76.412124][ T9] virtio-pci 0000:00:01.0: [drm] Dirty helper failed: ret=-12
[ 76.412132][ 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
[ 76.564819][ T9] Modules linked in:
[ 76.566474][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 76.570593][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.574994][ T9] Workqueue: events drm_fb_helper_damage_work
[ 76.577788][ T9] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 76.581045][ T9] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 7a 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
[ 76.589738][ T9] RSP: 0018:ffffc9000022f898 EFLAGS: 00010246
[ 76.592637][ T9] RAX: 1ffff11003ed341a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 76.596180][ T9] RDX: ffff88801f3cd0a0 RSI: ffffffff8c79ca40 RDI: ffffffff908642b0
[ 76.599821][ T9] RBP: ffff888034c00008 R08: ffffc9000022f5e7 R09: 1ffff92000045ebc
[ 76.603320][ T9] R10: dffffc0000000000 R11: fffff52000045ebd R12: ffff88801f3cd0a0
[ 76.607018][ T9] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f69a0d0
[ 76.610688][ T9] FS: 0000000000000000(0000) GS:ffff88808c2c6000(0000) knlGS:0000000000000000
[ 76.614732][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 76.617729][ T9] CR2: 00007f9939df36b8 CR3: 000000003f594000 CR4: 0000000000352ef0
[ 76.621703][ T9] Call Trace:
[ 76.623147][ T9]
[ 76.624600][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 76.626952][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 76.629574][ T9] ? lock_acquire+0x115/0x350
[ 76.631901][ T9] ? rcu_is_watching+0x16/0xb0
[ 76.634435][ T9] ? process_scheduled_works+0x97a/0x1630
[ 76.637117][ T9] process_scheduled_works+0xc3d/0x1630
[ 76.639871][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.642613][ T9] ? assign_work+0x3cf/0x5d0
[ 76.644645][ T9] worker_thread+0xa47/0xfb0
[ 76.646713][ T9] kthread+0x38b/0x480
[ 76.648540][ T9] ? __pfx_worker_thread+0x10/0x10
[ 76.650999][ T9] ? __pfx_kthread+0x10/0x10
[ 76.653091][ T9] ret_from_fork+0x514/0xb70
[ 76.655133][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 76.657489][ T9] ? __switch_to+0xc89/0x1420
[ 76.659643][ T9] ? __pfx_kthread+0x10/0x10
[ 76.661885][ T9] ret_from_fork_asm+0x1a/0x30
[ 76.664105][ T9]
[ 76.665590][ T9] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 76.668928][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full)
[ 76.673025][ T9] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.677530][ T9] Workqueue: events drm_fb_helper_damage_work
[ 76.680291][ T9] Call Trace:
[ 76.681825][ T9]
[ 76.683181][ T9] vpanic+0x56d/0xa60
[ 76.685041][ T9] ? __pfx__printk+0x10/0x10
[ 76.687174][ T9] ? __pfx_vpanic+0x10/0x10
[ 76.689217][ T9] ? is_bpf_text_address+0x292/0x2b0
[ 76.691592][ T9] ? is_bpf_text_address+0x26/0x2b0
[ 76.693993][ T9] panic+0xc5/0xd0
[ 76.695758][ T9] ? __pfx_panic+0x10/0x10
[ 76.697840][ T9] ? ret_from_fork_asm+0x1a/0x30
[ 76.700133][ T9] __warn+0x315/0x4c0
[ 76.701964][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 76.704859][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 76.707601][ T9] __report_bug+0x276/0x570
[ 76.709650][ T9] ? drm_modeset_acquire_fini+0x27/0x180
[ 76.712091][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x1e1/0x310
[ 76.714796][ T9] ? __pfx___report_bug+0x10/0x10
[ 76.717052][ T9] ? drm_atomic_helper_dirtyfb+0xf27/0xfd0
[ 76.719762][ T9] ? __pfx_drm_atomic_helper_dirtyfb+0x10/0x10
[ 76.722590][ T9] report_bug_entry+0x19b/0x290
[ 76.724826][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 76.727624][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x28d/0x310
[ 76.730451][ T9] handle_bug+0xce/0x200
[ 76.732321][ T9] exc_invalid_op+0x1a/0x50
[ 76.734348][ T9] asm_exc_invalid_op+0x1a/0x20
[ 76.736479][ T9] RIP: 0010:drm_fbdev_shmem_helper_fb_dirty+0x288/0x310
[ 76.739488][ T9] Code: 28 fc 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 7a 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
[ 76.747830][ T9] RSP: 0018:ffffc9000022f898 EFLAGS: 00010246
[ 76.750516][ T9] RAX: 1ffff11003ed341a RBX: 00000000fffffff4 RCX: 00000000fffffff4
[ 76.753958][ T9] RDX: ffff88801f3cd0a0 RSI: ffffffff8c79ca40 RDI: ffffffff908642b0
[ 76.757362][ T9] RBP: ffff888034c00008 R08: ffffc9000022f5e7 R09: 1ffff92000045ebc
[ 76.760756][ T9] R10: dffffc0000000000 R11: fffff52000045ebd R12: ffff88801f3cd0a0
[ 76.764146][ T9] R13: dffffc0000000000 R14: ffffffff8c79ca40 R15: ffff88801f69a0d0
[ 76.767626][ T9] ? drm_fbdev_shmem_helper_fb_dirty+0x260/0x310
[ 76.770422][ T9] drm_fb_helper_damage_work+0x84c/0xf20
[ 76.772973][ T9] ? __pfx_drm_fb_helper_damage_work+0x10/0x10
[ 76.775679][ T9] ? lock_acquire+0x115/0x350
[ 76.777802][ T9] ? rcu_is_watching+0x16/0xb0
[ 76.779990][ T9] ? process_scheduled_works+0x97a/0x1630
[ 76.782449][ T9] process_scheduled_works+0xc3d/0x1630
[ 76.784914][ T9] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.787559][ T9] ? assign_work+0x3cf/0x5d0
[ 76.789583][ T9] worker_thread+0xa47/0xfb0
[ 76.791597][ T9] kthread+0x38b/0x480
[ 76.793346][ T9] ? __pfx_worker_thread+0x10/0x10
[ 76.795513][ T9] ? __pfx_kthread+0x10/0x10
[ 76.797618][ T9] ret_from_fork+0x514/0xb70
[ 76.799613][ T9] ? __pfx_ret_from_fork+0x10/0x10
[ 76.801799][ T9] ? __switch_to+0xc89/0x1420
[ 76.803852][ T9] ? __pfx_kthread+0x10/0x10
[ 76.805853][ T9] ret_from_fork_asm+0x1a/0x30
[ 76.807993][ T9]
[ 76.809731][ T9] Kernel Offset: disabled
[ 76.811590][ T9] Rebooting in 86400 seconds..