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-6,10.128.15.218' (ECDSA) to the list of known hosts. 2017/10/30 07:42:57 parsed 1 programs 2017/10/30 07:42:57 executed programs: 0 syzkaller login: [ 42.024351] BUG: unable to handle kernel paging request at fffffbfffffffffe [ 42.025445] IP: devpts_mntget+0x135/0x280 [ 42.026013] PGD 21fff4067 P4D 21fff4067 PUD 21fff3067 PMD 21fff2067 PTE 0 [ 42.027015] Oops: 0000 [#1] SMP KASAN [ 42.027524] Dumping ftrace buffer: [ 42.028038] (ftrace buffer empty) [ 42.028534] Modules linked in: [ 42.028984] CPU: 1 PID: 3002 Comm: syz-executor0 Not tainted 4.14.0-rc5-next-20171018+ #36 [ 42.030080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.031312] task: ffff8801d2094280 task.stack: ffff8801c0a28000 [ 42.032127] RIP: 0010:devpts_mntget+0x135/0x280 [ 42.032745] RSP: 0018:ffff8801c0a2fa50 EFLAGS: 00010a03 [ 42.033470] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: ffffffff81ce4ac0 [ 42.034421] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5 [ 42.035372] RBP: ffff8801c0a2fae0 R08: 0000000000000001 R09: 1ffff10038145f05 [ 42.036334] R10: ffff8801c0a2f760 R11: 0000000000000000 R12: 1ffff10038145f4a [ 42.037296] R13: ffff8801c0a2fa70 R14: ffff8801ca0ac700 R15: ffff8801c0a2fb20 [ 42.038248] FS: 00007f2c99982700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 42.039321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.040106] CR2: fffffbfffffffffe CR3: 00000001d0017000 CR4: 00000000001406e0 [ 42.041059] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.042041] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.042991] Call Trace: [ 42.043347] ? devpts_fill_super+0xad0/0xad0 [ 42.043932] ? __alloc_fd+0x750/0x750 [ 42.044449] ptm_open_peer+0x11a/0x2f0 [ 42.048095] ? pty_unix98_install+0xa30/0xa30 [ 42.052561] tty_ioctl+0x50f/0x15f0 [ 42.056160] ? tty_vhangup+0x30/0x30 [ 42.059844] ? __lock_is_held+0xb6/0x140 [ 42.063885] ? trace_event_raw_event_sched_switch+0x8a0/0x8a0 [ 42.069738] ? rcu_note_context_switch+0x710/0x710 [ 42.074640] ? tty_vhangup+0x30/0x30 [ 42.078318] do_vfs_ioctl+0x1b1/0x1520 [ 42.082172] ? _cond_resched+0x14/0x30 [ 42.086027] ? ioctl_preallocate+0x2b0/0x2b0 [ 42.090403] ? selinux_capable+0x40/0x40 [ 42.094431] ? trace_hardirqs_off_caller+0x61/0x2c0 [ 42.099417] ? syscall_return_slowpath+0x2b3/0x510 [ 42.104310] ? finish_task_switch+0x1aa/0x740 [ 42.108775] ? security_file_ioctl+0x89/0xb0 [ 42.113151] SyS_ioctl+0x8f/0xc0 [ 42.116486] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.121205] RIP: 0033:0x452869 [ 42.124370] RSP: 002b:00007f2c99981be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 42.132043] RAX: ffffffffffffffda RBX: 0000000000758190 RCX: 0000000000452869 [ 42.139278] RDX: 00000000205f9000 RSI: 2000000000005441 RDI: 0000000000000003 [ 42.146514] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 42.153750] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 [ 42.160985] R13: 00007fff0bcd042f R14: 00007f2c999829c0 R15: 0000000000000004 [ 42.168226] 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 [ 42.187289] RIP: devpts_mntget+0x135/0x280 RSP: ffff8801c0a2fa50 [ 42.193397] CR2: fffffbfffffffffe [ 42.196820] ---[ end trace 45c82cd99622a354 ]--- [ 42.201546] Kernel panic - not syncing: Fatal exception [ 42.206904] Dumping ftrace buffer: [ 42.210407] (ftrace buffer empty) [ 42.214084] Kernel Offset: disabled [ 42.217675] Rebooting in 86400 seconds..