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 '10.128.0.34' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   26.556308] kasan: CONFIG_KASAN_INLINE enabled
[   26.560983] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   26.568569] general protection fault: 0000 [#1] SMP KASAN
[   26.574115] Dumping ftrace buffer:
[   26.577640]    (ftrace buffer empty)
[   26.581327] Modules linked in:
[   26.584501] CPU: 1 PID: 4517 Comm: syzkaller550665 Not tainted 4.16.0+ #2
[   26.591400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.600742] RIP: 0010:kernel_sock_shutdown+0x29/0x80
[   26.605819] RSP: 0018:ffff8801b586fcb0 EFLAGS: 00010206
[   26.611167] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff10035f5b57d
[   26.618415] RDX: 0000000000000005 RSI: ffffffff85b52864 RDI: 0000000000000028
[   26.625664] RBP: ffff8801b586fcc8 R08: 1ffff10036b0df54 R09: ffffed003b6246c2
[   26.632912] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   26.640163] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.647420] FS:  0000000001e52880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
[   26.655624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.661488] CR2: 00007ffcd410e038 CR3: 00000001ada93000 CR4: 00000000001406e0
[   26.668752] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.675999] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.683250] Call Trace:
[   26.685820]  smc_shutdown+0x320/0x600
[   26.689599]  __sys_shutdown+0x154/0x2b0
[   26.693551]  ? SyS_getsockopt+0x50/0x50
[   26.697507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   26.703040]  ? exit_to_usermode_loop+0x1ef/0x310
[   26.707778]  ? syscall_slow_exit_work+0x4f0/0x4f0
[   26.712601]  ? do_syscall_64+0xb7/0x9d0
[   26.716554]  SyS_shutdown+0x1c/0x30
[   26.720161]  ? __sys_shutdown+0x2b0/0x2b0
[   26.724296]  do_syscall_64+0x29e/0x9d0
[   26.728171]  ? vmalloc_sync_all+0x30/0x30
[   26.732303]  ? syscall_slow_exit_work+0x4f0/0x4f0
[   26.737135]  ? syscall_return_slowpath+0x5c0/0x5c0
[   26.742049]  ? syscall_return_slowpath+0x30f/0x5c0
[   26.746966]  ? entry_SYSCALL_64_after_hwframe+0x52/0xb7
[   26.752315]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   26.757147]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   26.762324] RIP: 0033:0x43fcb9
[   26.765494] RSP: 002b:00007ffcd405c258 EFLAGS: 00000217 ORIG_RAX: 0000000000000030
[   26.773179] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9
[   26.780425] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003
[   26.787682] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
[   26.794930] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0
[   26.802181] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000
[   26.809432] Code: 00 00 55 48 89 e5 41 55 41 89 f5 41 54 53 48 89 fb e8 0c 01 c2 fb 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 37 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 28 49 
[   26.828572] RIP: kernel_sock_shutdown+0x29/0x80 RSP: ffff8801b586fcb0
[   26.835184] ---[ end trace eb7ea2c37d3fedb8 ]---
[   26.839947] Kernel panic - not syncing: Fatal exception
[   26.845757] Dumping ftrace buffer:
[   26.849276]    (ftrace buffer empty)
[   26.852960] Kernel Offset: disabled
[   26.856564] Rebooting in 86400 seconds..