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 '10.128.10.37' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   28.696601] kasan: CONFIG_KASAN_INLINE enabled
[   28.701265] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   28.708751] general protection fault: 0000 [#1] SMP KASAN
[   28.714275] Dumping ftrace buffer:
[   28.717787]    (ftrace buffer empty)
[   28.721472] Modules linked in:
[   28.724645] CPU: 1 PID: 4473 Comm: syzkaller975418 Not tainted 4.16.0+ #3
[   28.731542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.740879] RIP: 0010:kernel_sock_shutdown+0x29/0x80
[   28.745954] RSP: 0018:ffff8801adb37cb0 EFLAGS: 00010206
[   28.751294] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1003b280955
[   28.758540] RDX: 0000000000000005 RSI: ffffffff85b53864 RDI: 0000000000000028
[   28.765787] RBP: ffff8801adb37cc8 R08: 1ffff10035b66f54 R09: ffffed003b6246c2
[   28.773036] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   28.780284] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.787531] FS:  0000000000eb3880(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
[   28.795732] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.801591] CR2: 00007ffcd9124038 CR3: 00000001aff26000 CR4: 00000000001406e0
[   28.808837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.816082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.823328] Call Trace:
[   28.825895]  smc_shutdown+0x320/0x600
[   28.829685]  __sys_shutdown+0x154/0x2b0
[   28.833633]  ? SyS_getsockopt+0x50/0x50
[   28.837587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   28.843104]  ? exit_to_usermode_loop+0x1ef/0x310
[   28.847838]  ? syscall_slow_exit_work+0x4f0/0x4f0
[   28.852657]  ? do_syscall_64+0xb7/0x9d0
[   28.856607]  SyS_shutdown+0x1c/0x30
[   28.860210]  ? __sys_shutdown+0x2b0/0x2b0
[   28.864335]  do_syscall_64+0x29e/0x9d0
[   28.868204]  ? vmalloc_sync_all+0x30/0x30
[   28.872330]  ? syscall_slow_exit_work+0x4f0/0x4f0
[   28.877149]  ? syscall_return_slowpath+0x5c0/0x5c0
[   28.882056]  ? syscall_return_slowpath+0x30f/0x5c0
[   28.886966]  ? entry_SYSCALL_64_after_hwframe+0x52/0xb7
[   28.892305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   28.897128]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   28.902289] RIP: 0033:0x43fcb9
[   28.905452] RSP: 002b:00007ffcd911ca78 EFLAGS: 00000217 ORIG_RAX: 0000000000000030
[   28.913136] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9
[   28.920381] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003
[   28.927625] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
[   28.934872] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0
[   28.942116] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000
[   28.949363] Code: 00 00 55 48 89 e5 41 55 41 89 f5 41 54 53 48 89 fb e8 2c f1 c1 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 
[   28.968491] RIP: kernel_sock_shutdown+0x29/0x80 RSP: ffff8801adb37cb0
[   28.975117] ---[ end trace 62f4fadcc86791d4 ]---
[   28.979871] Kernel panic - not syncing: Fatal exception
[   28.985620] Dumping ftrace buffer:
[   28.989138]    (ftrace buffer empty)
[   28.992824] Kernel Offset: disabled
[   28.996429] Rebooting in 86400 seconds..