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-2,10.128.0.13' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   45.397926] kasan: CONFIG_KASAN_INLINE enabled
[   45.398723] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   45.399708] general protection fault: 0000 [#1] SMP KASAN
[   45.400439] Dumping ftrace buffer:
[   45.400925]    (ftrace buffer empty)
[   45.401420] Modules linked in:
[   45.401873] CPU: 1 PID: 3087 Comm: syzkaller620885 Not tainted 4.15.0-rc2+ #210
[   45.402848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.404108] RIP: 0010:show_timer+0x1c7/0x2b0
[   45.404693] RSP: 0018:ffff8801cb97fac8 EFLAGS: 00010002
[   45.405438] RAX: dffffc0000000000 RBX: ffff8801cbf26e00 RCX: ffffffff81ccd0ee
[   45.406410] RDX: 0000000050a6853d RSI: ffffffff85f1a0e0 RDI: 00000002853429e8
[   45.407392] RBP: ffff8801cb97faf8 R08: ffffed0039747165 R09: ffffed0039747165
[   45.408343] R10: ffff8801cb8d8200 R11: ffffed0039747164 R12: 0000000060000001
[   45.409354] R13: ffff8801cbd71a80 R14: ffffffff85341aa0 R15: 0000000000000c0f
[   45.410307] FS:  0000000001e9f880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[   45.411381] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.412154] CR2: 0000000020b15000 CR3: 00000001cb879000 CR4: 00000000001406e0
[   45.413125] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.414105] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.415066] Call Trace:
[   45.415420]  ? timers_start+0x14c/0x1c0
[   45.415990]  seq_read+0x385/0x13d0
[   45.416489]  ? seq_lseek+0x3c0/0x3c0
[   45.416989]  ? selinux_file_permission+0x82/0x460
[   45.417635]  ? security_file_permission+0x89/0x1f0
[   45.419685]  ? rw_verify_area+0xe5/0x2b0
[   45.423729]  do_iter_read+0x3db/0x5b0
[   45.427496]  ? dup_iter+0x260/0x260
[   45.431091]  vfs_readv+0x121/0x1c0
[   45.434597]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   45.439929]  ? mm_fault_error+0x2c0/0x2c0
[   45.444044]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   45.449894]  ? fget_raw+0x20/0x20
[   45.453335]  ? do_page_fault+0xee/0x720
[   45.457290]  ? kasan_check_write+0x14/0x20
[   45.461490]  ? _copy_from_user+0x99/0x110
[   45.465607]  do_preadv+0x11b/0x1a0
[   45.469114]  ? do_preadv+0x11b/0x1a0
[   45.472804]  SyS_preadv+0x30/0x40
[   45.476228]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   45.480956] RIP: 0033:0x440159
[   45.484112] RSP: 002b:00007fff1f147728 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   45.491785] RAX: ffffffffffffffda RBX: 00007fff1f147730 RCX: 0000000000440159
[   45.499541] RDX: 0000000000000001 RSI: 0000000020b15000 RDI: 0000000000000003
[   45.507482] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   45.514718] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401a20
[   45.521963] R13: 0000000000401ab0 R14: 0000000000000000 R15: 0000000000000000
[   45.529204] Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 f2 26 a3 ff 4a 8d 3c e5 e0 29 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 e0 29 34 85 4c 89 ef 
[   45.548282] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801cb97fac8
[   45.554133] ---[ end trace f34776c6bf8284e1 ]---
[   45.558849] Kernel panic - not syncing: Fatal exception
[   45.564205] Dumping ftrace buffer:
[   45.567712]    (ftrace buffer empty)
[   45.571389] Kernel Offset: disabled
[   45.574982] Rebooting in 86400 seconds..