[info] Using makefile-style concurrent boot in runlevel 2. [ 25.073452] audit: type=1800 audit(1540937459.696:21): pid=5518 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [....] 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 49.624141] divide error: 0000 [#1] PREEMPT SMP KASAN [ 49.629355] CPU: 0 PID: 5676 Comm: syz-executor345 Not tainted 4.19.0-next-20181030+ #101 [ 49.637649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.646998] RIP: 0010:vivid_vid_cap_s_dv_timings+0x60e/0x11e0 [ 49.652868] Code: c6 84 c9 0f 95 c1 40 84 ce 0f 85 ce 0a 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 b9 0a 00 00 48 8b 43 14 31 d2 <41> f7 f7 48 ba 00 00 00 00 00 fc ff df 4c 8d 7b 40 89 85 64 ff ff [ 49.671750] RSP: 0018:ffff8801d80a7630 EFLAGS: 00010246 [ 49.677099] RAX: 0000000000d59f80 RBX: ffff8801d7a9e600 RCX: 0000000000000001 [ 49.684358] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d7a9e614 [ 49.691617] RBP: ffff8801d80a76f0 R08: 0000000000000001 R09: ffffed0039694024 [ 49.698868] R10: ffffed0039694024 R11: ffff8801cb4a0123 R12: ffff8801cb4a0080 [ 49.706118] R13: 1ffff1003b014ecd R14: 0000000000000000 R15: 0000000000000000 [ 49.713370] FS: 000000000228d880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 49.721576] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.727436] CR2: 00000000006cf090 CR3: 00000001d7948000 CR4: 00000000001406f0 [ 49.734689] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.741947] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.749201] Call Trace: [ 49.751776] ? v4l2_prio_open+0x140/0x140 [ 49.755910] ? vivid_vid_cap_s_std+0x230/0x230 [ 49.760483] vidioc_s_dv_timings+0xa4/0xc0 [ 49.764706] ? lock_downgrade+0x900/0x900 [ 49.768845] v4l_stub_s_dv_timings+0x4f/0x60 [ 49.773239] __video_do_ioctl+0x519/0xf00 [ 49.777367] ? usercopy_warn+0x110/0x110 [ 49.781413] ? v4l_s_fmt+0x990/0x990 [ 49.785115] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.790656] video_usercopy+0x5c1/0x1750 [ 49.794703] ? v4l_s_fmt+0x990/0x990 [ 49.798400] ? v4l_enumstd+0x70/0x70 [ 49.802103] ? __handle_mm_fault+0xa57/0x5be0 [ 49.806582] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 49.811412] ? zap_class+0x640/0x640 [ 49.815111] ? zap_class+0x640/0x640 [ 49.818807] ? zap_class+0x640/0x640 [ 49.822504] ? find_held_lock+0x36/0x1c0 [ 49.826553] ? video_usercopy+0x1750/0x1750 [ 49.830855] video_ioctl2+0x2c/0x33 [ 49.834464] v4l2_ioctl+0x154/0x1b0 [ 49.838072] ? video_devdata+0xa0/0xa0 [ 49.841964] do_vfs_ioctl+0x1de/0x1790 [ 49.845865] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 49.851138] ? rcu_softirq_qs+0x20/0x20 [ 49.855096] ? ioctl_preallocate+0x300/0x300 [ 49.859492] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.865016] ? __fget_light+0x2e9/0x430 [ 49.868973] ? fget_raw+0x20/0x20 [ 49.872417] ? kasan_check_write+0x14/0x20 [ 49.876638] ? up_read+0x225/0x2c0 [ 49.880162] ? up_read_non_owner+0x100/0x100 [ 49.884554] ? do_syscall_64+0x9a/0x820 [ 49.888509] ? do_syscall_64+0x9a/0x820 [ 49.892466] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 49.897034] ? security_file_ioctl+0x94/0xc0 [ 49.901427] ksys_ioctl+0xa9/0xd0 [ 49.904865] __x64_sys_ioctl+0x73/0xb0 [ 49.908735] do_syscall_64+0x1b9/0x820 [ 49.912604] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 49.917958] ? syscall_return_slowpath+0x5e0/0x5e0 [ 49.922869] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.927710] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.932711] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.937712] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.943232] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.948232] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.953059] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.958228] RIP: 0033:0x444c19 [ 49.961405] Code: e8 0c ad 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 db ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.980303] RSP: 002b:00007ffce23353f8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 49.987998] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c19 [ 49.995252] RDX: 0000000020000000 RSI: 00000000c0845657 RDI: 0000000000000003 [ 50.002505] RBP: 0000000000000000 R08: 0000ffff00000000 R09: 00000000004002e0 [ 50.009767] R10: 000000000000f8ff R11: 0000000000000213 R12: 000000000000c1b9 [ 50.017021] R13: 0000000000402010 R14: 0000000000000000 R15: 0000000000000000 [ 50.024273] Modules linked in: [ 50.027718] ---[ end trace eca9bbb7e84ba3e6 ]--- [ 50.032500] RIP: 0010:vivid_vid_cap_s_dv_timings+0x60e/0x11e0 [ 50.038431] Code: c6 84 c9 0f 95 c1 40 84 ce 0f 85 ce 0a 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 b9 0a 00 00 48 8b 43 14 31 d2 <41> f7 f7 48 ba 00 00 00 00 00 fc ff df 4c 8d 7b 40 89 85 64 ff ff [ 50.057373] RSP: 0018:ffff8801d80a7630 EFLAGS: 00010246 [ 50.062724] RAX: 0000000000d59f80 RBX: ffff8801d7a9e600 RCX: 0000000000000001 [ 50.070017] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d7a9e614 [ 50.077310] RBP: ffff8801d80a76f0 R08: 0000000000000001 R09: ffffed0039694024 [ 50.084614] R10: ffffed0039694024 R11: ffff8801cb4a0123 R12: ffff8801cb4a0080 [ 50.091886] R13: 1ffff1003b014ecd R14: 0000000000000000 R15: 0000000000000000 [ 50.099176] FS: 000000000228d880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 50.107426] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.113305] CR2: 00000000006cf090 CR3: 00000001d7948000 CR4: 00000000001406f0 [ 50.120595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.127887] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.135172] Kernel panic - not syncing: Fatal exception [ 50.141419] Kernel Offset: disabled [ 50.145055] Rebooting in 86400 seconds..