[ 69.251621][ T26] audit: type=1800 audit(1565891935.995:26): pid=10301 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 69.281816][ T26] audit: type=1800 audit(1565891936.005:27): pid=10301 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 69.314968][ T26] audit: type=1800 audit(1565891936.005:28): pid=10301 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. [ 70.186020][ T26] audit: type=1800 audit(1565891936.965:29): pid=10301 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 '10.128.0.29' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 80.068814][T10461] ------------[ cut here ]------------ [ 80.075412][T10461] WARNING: CPU: 1 PID: 10461 at drivers/media/common/videobuf2/videobuf2-core.c:1882 __vb2_queue_cancel.cold+0x11/0x20f [ 80.088643][T10461] Kernel panic - not syncing: panic_on_warn set ... [ 80.095284][T10461] CPU: 1 PID: 10461 Comm: syz-executor193 Not tainted 5.3.0-rc4+ #103 [ 80.103589][T10461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.113656][T10461] Call Trace: [ 80.116946][T10461] dump_stack+0x172/0x1f0 [ 80.121281][T10461] ? vb2_buffer_done.cold+0x3e/0x114 [ 80.126566][T10461] panic+0x2dc/0x755 [ 80.130537][T10461] ? add_taint.cold+0x16/0x16 [ 80.135246][T10461] ? __kasan_check_write+0x14/0x20 [ 80.141349][T10461] ? __warn.cold+0x5/0x4c [ 80.145787][T10461] ? __warn+0xe7/0x1e0 [ 80.149845][T10461] ? __vb2_queue_cancel.cold+0x11/0x20f [ 80.155380][T10461] __warn.cold+0x20/0x4c [ 80.159619][T10461] ? wake_up_klogd+0x99/0xd0 [ 80.164206][T10461] ? __vb2_queue_cancel.cold+0x11/0x20f [ 80.170460][T10461] report_bug+0x263/0x2b0 [ 80.174811][T10461] do_error_trap+0x11b/0x200 [ 80.179409][T10461] do_invalid_op+0x37/0x50 [ 80.183857][T10461] ? __vb2_queue_cancel.cold+0x11/0x20f [ 80.189413][T10461] invalid_op+0x23/0x30 [ 80.193706][T10461] RIP: 0010:__vb2_queue_cancel.cold+0x11/0x20f [ 80.199942][T10461] 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 [ 80.219719][T10461] RSP: 0018:ffff88809ad27ab0 EFLAGS: 00010286 [ 80.225796][T10461] RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000 [ 80.233761][T10461] RDX: 0000000000000000 RSI: ffffffff815c2466 RDI: ffffed10135a4f48 [ 80.241789][T10461] RBP: ffff88809ad27b28 R08: 0000000000000024 R09: ffffed1015d260d1 [ 80.249815][T10461] R10: ffffed1015d260d0 R11: ffff8880ae930687 R12: ffff88821828753c [ 80.257793][T10461] R13: ffff8882182875d0 R14: ffff8882182872f8 R15: ffff8882182814f0 [ 80.265781][T10461] ? vprintk_func+0x86/0x189 [ 80.270399][T10461] ? refcount_dec_and_test_checked+0x1b/0x20 [ 80.276410][T10461] vb2_core_streamoff+0x60/0x150 [ 80.281394][T10461] __vb2_cleanup_fileio+0x78/0x170 [ 80.286572][T10461] vb2_core_queue_release+0x20/0x80 [ 80.291864][T10461] _vb2_fop_release+0x1cf/0x2a0 [ 80.296736][T10461] vb2_fop_release+0x75/0xc0 [ 80.301325][T10461] vivid_fop_release+0x18e/0x450 [ 80.306275][T10461] ? vivid_req_validate+0xc0/0xc0 [ 80.311303][T10461] v4l2_release+0x21f/0x390 [ 80.315817][T10461] __fput+0x2ff/0x890 [ 80.319790][T10461] ? dev_debug_store+0x110/0x110 [ 80.324720][T10461] ____fput+0x16/0x20 [ 80.328694][T10461] task_work_run+0x145/0x1c0 [ 80.333288][T10461] do_exit+0x92f/0x2e50 [ 80.337439][T10461] ? mm_update_next_owner+0x640/0x640 [ 80.342815][T10461] ? down_read_non_owner+0x450/0x450 [ 80.348090][T10461] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 80.354324][T10461] ? handle_mm_fault+0x1d3/0x6b0 [ 80.359253][T10461] do_group_exit+0x135/0x360 [ 80.363853][T10461] __ia32_sys_exit_group+0x44/0x50 [ 80.368954][T10461] do_fast_syscall_32+0x27b/0xdb3 [ 80.373979][T10461] entry_SYSENTER_compat+0x70/0x7f [ 80.379084][T10461] RIP: 0023:0xf7fdda29 [ 80.383154][T10461] Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 80.403483][T10461] RSP: 002b:00000000ffe0377c EFLAGS: 00000292 ORIG_RAX: 00000000000000fc [ 80.411896][T10461] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f1298 [ 80.420103][T10461] RDX: 0000000000000000 RSI: 00000000080dac1c RDI: 00000000080f12a0 [ 80.428756][T10461] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 80.436721][T10461] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 80.444702][T10461] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 80.454126][T10461] Kernel Offset: disabled [ 80.458464][T10461] Rebooting in 86400 seconds..