[ 74.624369][ T26] audit: type=1800 audit(1565891878.124:26): pid=10386 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 74.645055][ T26] audit: type=1800 audit(1565891878.124:27): pid=10386 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 74.723989][ T26] audit: type=1800 audit(1565891878.244:28): pid=10386 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 75.622826][ T26] audit: type=1800 audit(1565891879.144:29): pid=10386 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 85.505048][T10553] ------------[ cut here ]------------ [ 85.511146][T10553] WARNING: CPU: 1 PID: 10553 at drivers/media/common/videobuf2/videobuf2-core.c:1882 __vb2_queue_cancel.cold+0x11/0x20f [ 85.523754][T10553] Kernel panic - not syncing: panic_on_warn set ... [ 85.530630][T10553] CPU: 1 PID: 10553 Comm: syz-executor314 Not tainted 5.3.0-rc4+ #110 [ 85.538774][T10553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.548819][T10553] Call Trace: [ 85.552108][T10553] dump_stack+0x172/0x1f0 [ 85.556437][T10553] ? vb2_buffer_done.cold+0x3e/0x114 [ 85.561717][T10553] panic+0x2dc/0x755 [ 85.565615][T10553] ? add_taint.cold+0x16/0x16 [ 85.570291][T10553] ? __kasan_check_write+0x14/0x20 [ 85.575408][T10553] ? __warn.cold+0x5/0x4c [ 85.579740][T10553] ? __warn+0xe7/0x1e0 [ 85.583811][T10553] ? __vb2_queue_cancel.cold+0x11/0x20f [ 85.589373][T10553] __warn.cold+0x20/0x4c [ 85.593612][T10553] ? wake_up_klogd+0x99/0xd0 [ 85.598204][T10553] ? __vb2_queue_cancel.cold+0x11/0x20f [ 85.603745][T10553] report_bug+0x263/0x2b0 [ 85.608241][T10553] do_error_trap+0x11b/0x200 [ 85.612856][T10553] do_invalid_op+0x37/0x50 [ 85.617280][T10553] ? __vb2_queue_cancel.cold+0x11/0x20f [ 85.622920][T10553] invalid_op+0x23/0x30 [ 85.627101][T10553] RIP: 0010:__vb2_queue_cancel.cold+0x11/0x20f [ 85.633237][T10553] Code: 71 ff ff e9 8f 70 ff ff e8 26 56 e1 fc eb bb e8 1f 56 e1 fc e9 4d ff ff ff e8 65 43 a7 fc 48 c7 c7 60 8a 06 88 e8 2d e4 90 fc <0f> 0b 48 8b 45 d0 48 05 28 02 00 00 48 89 45 88 48 c1 e8 03 48 89 [ 85.652979][T10553] RSP: 0018:ffff8880931b7ac0 EFLAGS: 00010286 [ 85.659045][T10553] RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000 [ 85.667110][T10553] RDX: 0000000000000000 RSI: ffffffff815c2466 RDI: ffffed1012636f4a [ 85.675071][T10553] RBP: ffff8880931b7b38 R08: 0000000000000024 R09: ffffed1015d260d1 [ 85.683327][T10553] R10: ffffed1015d260d0 R11: ffff8880ae930687 R12: ffff88809ec4757c [ 85.691418][T10553] R13: ffff88809ec47610 R14: ffff88809ec47338 R15: ffff88809ec41530 [ 85.699400][T10553] ? vprintk_func+0x86/0x189 [ 85.704016][T10553] ? refcount_dec_and_test_checked+0x1b/0x20 [ 85.710000][T10553] vb2_core_streamoff+0x60/0x150 [ 85.715019][T10553] __vb2_cleanup_fileio+0x78/0x170 [ 85.720163][T10553] vb2_core_queue_release+0x20/0x80 [ 85.725372][T10553] _vb2_fop_release+0x1cf/0x2a0 [ 85.730221][T10553] vb2_fop_release+0x75/0xc0 [ 85.734952][T10553] vivid_fop_release+0x18e/0x450 [ 85.739885][T10553] ? vivid_req_validate+0xc0/0xc0 [ 85.744900][T10553] v4l2_release+0x21f/0x390 [ 85.749399][T10553] __fput+0x2ff/0x890 [ 85.753369][T10553] ? dev_debug_store+0x110/0x110 [ 85.758308][T10553] ____fput+0x16/0x20 [ 85.762281][T10553] task_work_run+0x145/0x1c0 [ 85.766953][T10553] do_exit+0x92f/0x2e50 [ 85.771110][T10553] ? mm_update_next_owner+0x640/0x640 [ 85.776605][T10553] ? down_read_non_owner+0x450/0x450 [ 85.781895][T10553] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 85.788129][T10553] ? handle_mm_fault+0x1d3/0x6b0 [ 85.793176][T10553] do_group_exit+0x135/0x360 [ 85.797794][T10553] __x64_sys_exit_group+0x44/0x50 [ 85.802940][T10553] do_syscall_64+0xfd/0x6a0 [ 85.807449][T10553] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.813342][T10553] RIP: 0033:0x443b88 [ 85.817246][T10553] Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 [ 85.836909][T10553] RSP: 002b:00007ffd0e25c608 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 85.845453][T10553] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443b88 [ 85.853847][T10553] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 85.861811][T10553] RBP: 00000000004c34f0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 85.869902][T10553] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001 [ 85.877867][T10553] R13: 00000000006d5180 R14: 0000000000000000 R15: 0000000000000000 [ 85.886901][T10553] Kernel Offset: disabled [ 85.891244][T10553] Rebooting in 86400 seconds..