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-next-kasan-gce-0,10.128.0.2' (ECDSA) to the list of known hosts. 2017/10/29 20:49:14 parsed 1 programs 2017/10/29 20:49:14 executed programs: 0 syzkaller login: [ 74.842672] BUG: unable to handle kernel paging request at fffffbfffffffffe [ 74.843787] IP: devpts_mntget+0x135/0x280 [ 74.844340] PGD 21fff4067 P4D 21fff4067 PUD 21fff3067 PMD 21fff2067 PTE 0 [ 74.845261] Oops: 0000 [#1] SMP KASAN [ 74.845774] Dumping ftrace buffer: [ 74.846249] (ftrace buffer empty) [ 74.846745] Modules linked in: [ 74.847179] CPU: 1 PID: 3918 Comm: syz-executor3 Not tainted 4.14.0-rc5-next-20171018+ #36 [ 74.848298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.849517] task: ffff8801cd65e400 task.stack: ffff8801cd7f0000 [ 74.850316] RIP: 0010:devpts_mntget+0x135/0x280 [ 74.850934] RSP: 0018:ffff8801cd7f7a50 EFLAGS: 00010a03 [ 74.851644] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: ffffffff81ce4ac0 [ 74.852595] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5 [ 74.853547] RBP: ffff8801cd7f7ae0 R08: 0000000000000001 R09: 1ffff10039afef05 [ 74.854526] R10: ffff8801cd7f7760 R11: 0000000000000000 R12: 1ffff10039afef4a [ 74.855479] R13: ffff8801cd7f7a70 R14: ffff8801c9d09b00 R15: ffff8801cd7f7b20 [ 74.856432] FS: 00007f6271bd1700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 74.857505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.858278] CR2: fffffbfffffffffe CR3: 00000001cda40000 CR4: 00000000001406e0 [ 74.859301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.860258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.861208] Call Trace: [ 74.861584] ? devpts_fill_super+0xad0/0xad0 [ 74.862170] ? __alloc_fd+0x750/0x750 [ 74.862698] ptm_open_peer+0x11a/0x2f0 [ 74.865817] ? pty_unix98_install+0xa30/0xa30 [ 74.870285] tty_ioctl+0x50f/0x15f0 [ 74.873877] ? tty_vhangup+0x30/0x30 [ 74.877581] ? task_work_run+0x16c/0x270 [ 74.881608] ? lock_downgrade+0x990/0x990 [ 74.885725] ? do_raw_spin_trylock+0x190/0x190 [ 74.890281] ? trace_event_raw_event_sched_switch+0x8a0/0x8a0 [ 74.896132] ? _raw_spin_unlock_irq+0x27/0x70 [ 74.900600] ? rcu_note_context_switch+0x710/0x710 [ 74.905496] ? tty_vhangup+0x30/0x30 [ 74.909175] do_vfs_ioctl+0x1b1/0x1520 [ 74.913026] ? _cond_resched+0x14/0x30 [ 74.916884] ? ioctl_preallocate+0x2b0/0x2b0 [ 74.921263] ? selinux_capable+0x40/0x40 [ 74.925302] ? security_file_ioctl+0x89/0xb0 [ 74.929678] SyS_ioctl+0x8f/0xc0 [ 74.933014] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 74.937734] RIP: 0033:0x452869 [ 74.940893] RSP: 002b:00007f6271bd0be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 74.948565] RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869 [ 74.955799] RDX: 00000000202c2000 RSI: 2000000000005441 RDI: 0000000000000000 [ 74.963033] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 74.970267] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f7790 [ 74.977501] R13: 00000000ffffffff R14: 00007f6271bd16d4 R15: 0000000000000000 [ 74.984751] Code: c1 ea 03 80 3c 02 00 0f 85 56 01 00 00 48 8b 5d 90 e8 e0 73 a0 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 [ 75.003816] RIP: devpts_mntget+0x135/0x280 RSP: ffff8801cd7f7a50 [ 75.009926] CR2: fffffbfffffffffe [ 75.013352] ---[ end trace ea5d9425dce1c024 ]--- [ 75.018070] Kernel panic - not syncing: Fatal exception [ 75.023431] Dumping ftrace buffer: [ 75.026936] (ftrace buffer empty) [ 75.030614] Kernel Offset: disabled [ 75.034207] Rebooting in 86400 seconds..