[info] Using makefile-style concurrent boot in runlevel 2. [ 25.943260] audit: type=1800 audit(1540971255.464:21): pid=5517 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.6' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 45.621534] divide error: 0000 [#1] PREEMPT SMP KASAN [ 45.626752] CPU: 1 PID: 5675 Comm: syz-executor173 Not tainted 4.19.0+ #89 [ 45.633749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.643099] RIP: 0010:vivid_vid_cap_s_dv_timings+0x60e/0x11e0 [ 45.648969] 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 [ 45.667853] RSP: 0018:ffff8801b9f9f630 EFLAGS: 00010246 [ 45.673207] RAX: 0000000000d59f80 RBX: ffff8801d358f800 RCX: 0000000000000001 [ 45.680460] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d358f814 [ 45.687710] RBP: ffff8801b9f9f6f0 R08: 0000000000000001 R09: ffffed00395b0024 [ 45.694966] R10: ffffed00395b0024 R11: ffff8801cad80123 R12: ffff8801cad80080 [ 45.702223] R13: 1ffff100373f3ecd R14: 0000000000000000 R15: 0000000000000000 [ 45.709478] FS: 00000000016dc880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 45.717822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.723689] CR2: 00000000006cf090 CR3: 00000001d4937000 CR4: 00000000001406e0 [ 45.730946] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.738199] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.745451] Call Trace: [ 45.748044] ? v4l2_prio_open+0x140/0x140 [ 45.752184] ? vivid_vid_cap_s_std+0x230/0x230 [ 45.756755] vidioc_s_dv_timings+0xa4/0xc0 [ 45.760978] ? lock_downgrade+0x900/0x900 [ 45.765234] v4l_stub_s_dv_timings+0x4f/0x60 [ 45.769627] __video_do_ioctl+0x519/0xf00 [ 45.773891] ? usercopy_warn+0x110/0x110 [ 45.777938] ? v4l_s_fmt+0x990/0x990 [ 45.781642] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.787182] video_usercopy+0x5c1/0x1760 [ 45.791232] ? v4l_s_fmt+0x990/0x990 [ 45.794964] ? v4l_enumstd+0x70/0x70 [ 45.798674] ? __handle_mm_fault+0xa57/0x5be0 [ 45.803158] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 45.807985] ? smk_access+0x53b/0x700 [ 45.811769] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.817286] ? smack_log+0x423/0x590 [ 45.820983] ? smk_access_entry+0x310/0x310 [ 45.825296] ? zap_class+0x640/0x640 [ 45.828993] ? zap_class+0x640/0x640 [ 45.832692] ? smk_tskacc+0x3dd/0x520 [ 45.836478] ? video_usercopy+0x1760/0x1760 [ 45.840777] video_ioctl2+0x2c/0x33 [ 45.844387] v4l2_ioctl+0x154/0x1b0 [ 45.848002] ? video_devdata+0xa0/0xa0 [ 45.851878] do_vfs_ioctl+0x1de/0x1720 [ 45.855750] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 45.861007] ? ioctl_preallocate+0x300/0x300 [ 45.865472] ? smk_curacc+0x7f/0xa0 [ 45.869126] ? smack_file_ioctl+0x210/0x3c0 [ 45.873426] ? fget_raw+0x20/0x20 [ 45.876864] ? smack_file_lock+0x2e0/0x2e0 [ 45.881082] ? up_read+0x1f1/0x2c0 [ 45.884607] ? do_syscall_64+0x9a/0x820 [ 45.888568] ? do_syscall_64+0x9a/0x820 [ 45.892530] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.898051] ? security_file_ioctl+0x94/0xc0 [ 45.902438] ksys_ioctl+0xa9/0xd0 [ 45.905875] __x64_sys_ioctl+0x73/0xb0 [ 45.909744] do_syscall_64+0x1b9/0x820 [ 45.913616] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.918960] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.923873] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.928769] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.933778] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.938778] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.944293] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.949289] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.954113] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.959281] RIP: 0033:0x444c19 [ 45.962457] 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 [ 45.981340] RSP: 002b:00007ffe2e554ba8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 45.989030] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c19 [ 45.996279] RDX: 0000000020000000 RSI: 00000000c0845657 RDI: 0000000000000003 [ 46.003566] RBP: 0000000000000000 R08: 00000000016dc880 R09: 00000000004002e0 [ 46.010823] R10: 000000000000000f R11: 0000000000000213 R12: 000000000000b215 [ 46.018074] R13: 0000000000402010 R14: 0000000000000000 R15: 0000000000000000 [ 46.025328] Modules linked in: [ 46.029157] ---[ end trace 5afe6aef5a194fde ]--- [ 46.034033] RIP: 0010:vivid_vid_cap_s_dv_timings+0x60e/0x11e0 [ 46.039919] 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 [ 46.058856] RSP: 0018:ffff8801b9f9f630 EFLAGS: 00010246 [ 46.064424] RAX: 0000000000d59f80 RBX: ffff8801d358f800 RCX: 0000000000000001 [ 46.071790] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d358f814 [ 46.079053] RBP: ffff8801b9f9f6f0 R08: 0000000000000001 R09: ffffed00395b0024 [ 46.086339] R10: ffffed00395b0024 R11: ffff8801cad80123 R12: ffff8801cad80080 [ 46.093660] R13: 1ffff100373f3ecd R14: 0000000000000000 R15: 0000000000000000 [ 46.101002] FS: 00000000016dc880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 46.109226] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.115128] CR2: 00000000017d7000 CR3: 00000001d4937000 CR4: 00000000001406e0 [ 46.122400] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.129651] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.136933] Kernel panic - not syncing: Fatal exception [ 46.143108] Kernel Offset: disabled [ 46.146728] Rebooting in 86400 seconds..