[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 60.324796][ T27] kauditd_printk_skb: 7 callbacks suppressed [ 60.324804][ T27] audit: type=1800 audit(1565892114.031:29): pid=9487 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 60.351016][ T27] audit: type=1800 audit(1565892114.031:30): pid=9487 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 76.086500][ T9646] ------------[ cut here ]------------ [ 76.093984][ T9646] WARNING: CPU: 0 PID: 9646 at drivers/media/common/videobuf2/videobuf2-core.c:1882 __vb2_queue_cancel+0xa65/0xd80 [ 76.106234][ T9646] Kernel panic - not syncing: panic_on_warn set ... [ 76.112830][ T9646] CPU: 0 PID: 9646 Comm: syz-executor161 Not tainted 5.3.0-rc4+ #76 [ 76.120804][ T9646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.130848][ T9646] Call Trace: [ 76.134130][ T9646] dump_stack+0x1d8/0x2f8 [ 76.138488][ T9646] panic+0x25c/0x799 [ 76.142372][ T9646] ? __warn+0x126/0x230 [ 76.146562][ T9646] __warn+0x22f/0x230 [ 76.150543][ T9646] ? __vb2_queue_cancel+0xa65/0xd80 [ 76.155798][ T9646] report_bug+0x190/0x290 [ 76.171029][ T9646] ? __vb2_queue_cancel+0xa65/0xd80 [ 76.176219][ T9646] do_error_trap+0xd7/0x440 [ 76.180823][ T9646] do_invalid_op+0x36/0x40 [ 76.185227][ T9646] ? __vb2_queue_cancel+0xa65/0xd80 [ 76.190550][ T9646] invalid_op+0x23/0x30 [ 76.194707][ T9646] RIP: 0010:__vb2_queue_cancel+0xa65/0xd80 [ 76.200497][ T9646] Code: ff e8 6f 2b 71 fc eb 05 e8 68 2b 71 fc 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 c2 bf 3a 88 31 c0 e8 2e 76 5a fc <0f> 0b 4d 8d ac 24 28 02 00 00 4c 89 e9 48 c1 e9 03 48 b8 00 00 00 [ 76.220274][ T9646] RSP: 0018:ffff88809bf4fae8 EFLAGS: 00010246 [ 76.226401][ T9646] RAX: 0000000000000024 RBX: 0000000000000001 RCX: ab65d5714f946d00 [ 76.234369][ T9646] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 76.242750][ T9646] RBP: ffff88809bf4fb58 R08: ffffffff815cf524 R09: ffffed1015d46088 [ 76.250805][ T9646] R10: ffffed1015d46088 R11: 0000000000000000 R12: ffff88809e927438 [ 76.259003][ T9646] R13: ffff88809e927438 R14: 1ffff11013d24ee2 R15: 1ffff11013d24ecf [ 76.267071][ T9646] ? vprintk_emit+0x2d4/0x3a0 [ 76.271759][ T9646] ? __vb2_queue_cancel+0xa65/0xd80 [ 76.277129][ T9646] ? _raw_spin_unlock_irqrestore+0x77/0xe0 [ 76.283107][ T9646] vb2_core_queue_release+0x51/0x240 [ 76.288474][ T9646] vb2_fop_release+0x154/0x1e0 [ 76.293487][ T9646] vivid_fop_release+0x5ae/0x700 [ 76.298680][ T9646] v4l2_release+0x1da/0x360 [ 76.303164][ T9646] ? vivid_req_validate+0xc0/0xc0 [ 76.308297][ T9646] ? v4l2_open+0x310/0x310 [ 76.312697][ T9646] __fput+0x2e4/0x740 [ 76.316665][ T9646] ____fput+0x15/0x20 [ 76.320630][ T9646] task_work_run+0x17e/0x1b0 [ 76.325379][ T9646] do_exit+0x5e8/0x21a0 [ 76.329561][ T9646] do_group_exit+0x15c/0x2b0 [ 76.334200][ T9646] __do_sys_exit_group+0x17/0x20 [ 76.339235][ T9646] __se_sys_exit_group+0x14/0x20 [ 76.344157][ T9646] __x64_sys_exit_group+0x3b/0x40 [ 76.349170][ T9646] do_syscall_64+0xfe/0x140 [ 76.353763][ T9646] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.359644][ T9646] RIP: 0033:0x443b88 [ 76.363713][ T9646] 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 [ 76.383428][ T9646] RSP: 002b:00007ffe39de78d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 76.391913][ T9646] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443b88 [ 76.400175][ T9646] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 76.408136][ T9646] RBP: 00000000004c34f0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 76.416247][ T9646] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001 [ 76.424310][ T9646] R13: 00000000006d5180 R14: 0000000000000000 R15: 0000000000000000 [ 76.433542][ T9646] Kernel Offset: disabled [ 76.437872][ T9646] Rebooting in 86400 seconds..