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-mmots-kasan-gce-6,10.128.15.224' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   26.227720] kasan: CONFIG_KASAN_INLINE enabled
[   26.228459] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   26.229477] general protection fault: 0000 [#1] SMP KASAN
[   26.230363] Dumping ftrace buffer:
[   26.230837]    (ftrace buffer empty)
[   26.231331] Modules linked in:
[   26.231764] CPU: 1 PID: 3084 Comm: syzkaller930220 Not tainted 4.15.0-rc1-mm1+ #29
[   26.232769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.233985] task: 00000000ba405a9b task.stack: 00000000c05e4588
[   26.234785] RIP: 0010:show_timer+0x1c7/0x2b0
[   26.235368] RSP: 0018:ffff8801cb9b7ac8 EFLAGS: 00010006
[   26.236076] RAX: dffffc0000000000 RBX: ffff8801cb8e2e00 RCX: ffffffff81cd3aee
[   26.237027] RDX: 0000000050a68705 RSI: ffffffff85f1a780 RDI: 0000000285343828
[   26.237977] RBP: ffff8801cb9b7af8 R08: ffffed00397474e5 R09: ffffed00397474e5
[   26.238928] R10: ffff8801cc0fc000 R11: ffffed00397474e4 R12: 0000000060000001
[   26.239878] R13: ffff8801cbec05c0 R14: ffffffff85342920 R15: 0000000000000c0c
[   26.240865] FS:  00000000010b4880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[   26.241941] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.242715] CR2: 0000000020b15000 CR3: 00000001cb9f7000 CR4: 00000000001406e0
[   26.243668] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.244619] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.245571] Call Trace:
[   26.245927]  ? timers_start+0x14c/0x1c0
[   26.246463]  seq_read+0x385/0x13d0
[   26.246944]  ? seq_lseek+0x3c0/0x3c0
[   26.247443]  ? selinux_file_permission+0x82/0x460
[   26.249874]  ? security_file_permission+0x89/0x1f0
[   26.254767]  ? rw_verify_area+0xe5/0x2b0
[   26.258793]  do_iter_read+0x3db/0x5b0
[   26.262562]  ? dup_iter+0x260/0x260
[   26.266161]  vfs_readv+0x121/0x1c0
[   26.269668]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   26.274997]  ? mm_fault_error+0x2c0/0x2c0
[   26.279111]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   26.284959]  ? fget_raw+0x20/0x20
[   26.288376]  ? do_page_fault+0xee/0x720
[   26.292320]  ? kasan_check_write+0x14/0x20
[   26.296516]  ? _copy_from_user+0x99/0x110
[   26.300635]  do_preadv+0x11b/0x1a0
[   26.304138]  ? do_preadv+0x11b/0x1a0
[   26.307816]  SyS_preadv+0x30/0x40
[   26.311236]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   26.315954] RIP: 0033:0x440159
[   26.319111] RSP: 002b:00007ffdfd209348 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   26.326783] RAX: ffffffffffffffda RBX: 00007ffdfd209350 RCX: 0000000000440159
[   26.334023] RDX: 0000000000000001 RSI: 0000000020b15000 RDI: 0000000000000003
[   26.342039] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   26.350314] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401a20
[   26.357550] R13: 0000000000401ab0 R14: 0000000000000000 R15: 0000000000000000
[   26.365054] Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 c2 00 a3 ff 4a 8d 3c e5 20 38 34 85 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a2 00 00 00 4a 8b 14 e5 20 38 34 85 4c 89 ef 
[   26.384807] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801cb9b7ac8
[   26.390657] ---[ end trace 6e3489af1f81e62c ]---
[   26.395375] Kernel panic - not syncing: Fatal exception
[   26.401049] Dumping ftrace buffer:
[   26.404550]    (ftrace buffer empty)
[   26.408226] Kernel Offset: disabled
[   26.411820] Rebooting in 86400 seconds..