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-386-3,10.128.15.209' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.733250] kasan: CONFIG_KASAN_INLINE enabled
[   40.733978] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   40.734962] general protection fault: 0000 [#1] SMP KASAN
[   40.735692] Dumping ftrace buffer:
[   40.736165]    (ftrace buffer empty)
[   40.736659] Modules linked in:
[   40.737091] CPU: 0 PID: 3086 Comm: syzkaller331470 Not tainted 4.15.0-rc2+ #116
[   40.738063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.739308] task: 0000000086e76f9f task.stack: 00000000a4ccd88a
[   40.740109] RIP: 0010:show_timer+0x1c7/0x2b0
[   40.740692] RSP: 0018:ffff8801cbf07840 EFLAGS: 00010002
[   40.741538] RAX: dffffc0000000000 RBX: ffff8801cbb5fe00 RCX: ffffffff81ccd0ce
[   40.742532] RDX: 0000000050a68545 RSI: ffffffff85f1a0e0 RDI: 0000000285342a28
[   40.743504] RBP: ffff8801cbf07870 R08: ffffed00397e91bd R09: ffffed00397e91bd
[   40.744504] R10: ffff8801cbe6c500 R11: ffffed00397e91bc R12: 0000000060000001
[   40.745480] R13: ffff8801cc7b6580 R14: ffffffff85341ae0 R15: 0000000000000c0e
[   40.746535] FS:  0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:0000000009ac6840
[   40.747670] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   40.748461] CR2: 0000000020b15000 CR3: 00000001cc579000 CR4: 00000000001406f0
[   40.749413] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.750400] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.751379] Call Trace:
[   40.751737]  ? timers_start+0x14c/0x1c0
[   40.752272]  traverse+0x248/0xa00
[   40.752739]  ? seq_hlist_next+0xc0/0xc0
[   40.753276]  seq_read+0x96a/0x13d0
[   40.755822]  ? seq_lseek+0x3c0/0x3c0
[   40.759501]  ? selinux_file_permission+0x82/0x460
[   40.764310]  ? security_file_permission+0x89/0x1f0
[   40.769205]  ? rw_verify_area+0xe5/0x2b0
[   40.773234]  do_iter_read+0x3db/0x5b0
[   40.777001]  ? iov_iter_get_pages+0x1150/0x1150
[   40.781641]  compat_readv+0x1bf/0x270
[   40.785409]  ? vfs_iter_read+0xb0/0xb0
[   40.789266]  ? fget_raw+0x20/0x20
[   40.792686]  ? down_read_trylock+0xdb/0x170
[   40.796971]  ? __do_page_fault+0x32d/0xc90
[   40.801171]  ? __handle_mm_fault+0x3e20/0x3e20
[   40.805717]  ? vmacache_find+0x5f/0x280
[   40.809661]  do_compat_preadv64+0xdc/0x100
[   40.813864]  ? do_compat_preadv64+0xdc/0x100
[   40.818239]  compat_SyS_preadv+0x3b/0x50
[   40.822266]  ? compat_SyS_preadv64+0x40/0x40
[   40.826641]  do_fast_syscall_32+0x3ee/0xf9d
[   40.830932]  ? do_int80_syscall_32+0x9d0/0x9d0
[   40.835478]  ? kasan_check_read+0x11/0x20
[   40.839592]  ? syscall_return_slowpath+0x550/0x550
[   40.844488]  ? SyS_rt_sigaction+0x94/0x1b0
[   40.848695]  ? lockdep_sys_exit+0x47/0xf0
[   40.852807]  ? retint_user+0x18/0x18
[   40.856489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   40.861297]  entry_SYSENTER_compat+0x51/0x60
[   40.865669] RIP: 0023:0xf7feec79
[   40.868997] RSP: 002b:00000000ff97ee8c EFLAGS: 00000217 ORIG_RAX: 000000000000014d
[   40.876684] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020b15000
[   40.883921] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000007
[   40.891161] RBP: 0000000020f6afa0 R08: 0000000000000000 R09: 0000000000000000
[   40.898398] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   40.905631] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   40.912876] Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 62 27 a3 ff 4a 8d 3c e5 20 2a 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 2a 34 85 4c 89 ef 
[   40.931948] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801cbf07840
[   40.937799] ---[ end trace deb79a0da45621a8 ]---
[   40.942517] Kernel panic - not syncing: Fatal exception
[   40.948172] Dumping ftrace buffer:
[   40.951678]    (ftrace buffer empty)
[   40.955353] Kernel Offset: disabled
[   40.958942] Rebooting in 86400 seconds..