INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] 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 'ci-upstream-kasan-gce-8,10.128.15.200' (ECDSA) to the list of known hosts.
2017/10/29 20:49:19 parsed 1 programs
2017/10/29 20:49:19 executed programs: 0
syzkaller login: [   40.551953] BUG: unable to handle kernel paging request at fffffbfffffffffe
[   40.552995] IP: devpts_mntget+0x135/0x280
[   40.553546] PGD 21fff4067 P4D 21fff4067 PUD 21fff3067 PMD 21fff2067 PTE 0
[   40.554476] Oops: 0000 [#1] SMP KASAN
[   40.554986] Dumping ftrace buffer:
[   40.555461]    (ftrace buffer empty)
[   40.555966] Modules linked in:
[   40.556399] CPU: 0 PID: 3021 Comm: syz-executor5 Not tainted 4.14.0-rc6+ #153
[   40.557360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.558709] task: ffff8801d2bac640 task.stack: ffff8801d2bb0000
[   40.559540] RIP: 0010:devpts_mntget+0x135/0x280
[   40.560158] RSP: 0018:ffff8801d2bb7a50 EFLAGS: 00010a03
[   40.560865] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: 1ffff1003a5759d6
[   40.561838] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5
[   40.562787] RBP: ffff8801d2bb7ae0 R08: 0000000000000001 R09: 1ffff1003a576f05
[   40.563738] R10: ffff8801d2bb7760 R11: 0000000000000000 R12: 1ffff1003a576f4a
[   40.564754] R13: ffff8801d2bb7a70 R14: ffff8801ca6fe280 R15: ffff8801d2bb7b20
[   40.565760] FS:  00007fa283887700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   40.566844] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.567620] CR2: fffffbfffffffffe CR3: 00000001dadd0000 CR4: 00000000001406f0
[   40.568573] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.569566] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.570533] Call Trace:
[   40.570890]  ? devpts_fill_super+0xad0/0xad0
[   40.571476]  ? __alloc_fd+0x750/0x750
[   40.571995]  ptm_open_peer+0x11a/0x2f0
[   40.575494]  ? pty_unix98_install+0xa30/0xa30
[   40.579965]  tty_ioctl+0x50f/0x15f0
[   40.583562]  ? tty_vhangup+0x30/0x30
[   40.587259]  ? task_work_run+0x16c/0x270
[   40.591287]  ? lock_downgrade+0x990/0x990
[   40.595404]  ? do_raw_spin_trylock+0x190/0x190
[   40.599958]  ? check_same_owner+0x320/0x320
[   40.604245]  ? _raw_spin_unlock_irq+0x27/0x70
[   40.608703]  ? task_work_run+0x1f4/0x270
[   40.612731]  ? tty_vhangup+0x30/0x30
[   40.616410]  do_vfs_ioctl+0x1b1/0x1520
[   40.620274]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.624650]  ? selinux_capable+0x40/0x40
[   40.628684]  ? security_file_ioctl+0x89/0xb0
[   40.633056]  SyS_ioctl+0x8f/0xc0
[   40.636388]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.641107] RIP: 0033:0x452869
[   40.644261] RSP: 002b:00007fa283886be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
[   40.651930] RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869
[   40.659599] RDX: 00000000202c2000 RSI: 2000000000005441 RDI: 0000000000000000
[   40.666834] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   40.674068] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f7790
[   40.681307] R13: 00000000ffffffff R14: 00007fa2838876d4 R15: 0000000000000000
[   40.688549] Code: c1 ea 03 80 3c 02 00 0f 85 56 01 00 00 48 8b 5d 90 e8 90 54 a1 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 4c 8b 7b 08 48 b8 00 00 00 00 00 
[   40.707610] RIP: devpts_mntget+0x135/0x280 RSP: ffff8801d2bb7a50
[   40.713714] CR2: fffffbfffffffffe
[   40.717136] ---[ end trace 26c7d9725394e458 ]---
[   40.721856] Kernel panic - not syncing: Fatal exception
[   40.727209] Dumping ftrace buffer:
[   40.730722]    (ftrace buffer empty)
[   40.734409] Kernel Offset: disabled
[   40.738004] Rebooting in 86400 seconds..