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-386-0,10.128.15.229' (ECDSA) to the list of known hosts.
2017/11/22 00:28:14 parsed 1 programs
2017/11/22 00:28:14 executed programs: 0
syzkaller login: [   32.125798] WARNING: CPU: 0 PID: 1306 at net/xfrm/xfrm_state.c:2323 xfrm_state_fini+0x46a/0x620
[   32.127082] Kernel panic - not syncing: panic_on_warn set ...
[   32.127082] 
[   32.128050] CPU: 0 PID: 1306 Comm: kworker/u4:5 Not tainted 4.14.0+ #99
[   32.128935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.130162] Workqueue: netns cleanup_net
[   32.130705] Call Trace:
[   32.131063]  dump_stack+0x194/0x257
[   32.131556]  ? arch_local_irq_restore+0x53/0x53
[   32.132182]  ? vsnprintf+0x1ed/0x1900
[   32.132701]  panic+0x1e4/0x41c
[   32.133134]  ? refcount_error_report+0x214/0x214
[   32.133769]  ? show_regs_print_info+0x65/0x65
[   32.134376]  ? __warn+0x1c1/0x200
[   32.134845]  ? xfrm_state_fini+0x46a/0x620
[   32.135411]  __warn+0x1dc/0x200
[   32.135854]  ? xfrm_state_fini+0x46a/0x620
[   32.136425]  report_bug+0x211/0x2d0
[   32.136923]  fixup_bug.part.11+0x37/0x80
[   32.137479]  do_error_trap+0x2d7/0x3e0
[   32.138025]  ? math_error+0x400/0x400
[   32.138539]  ? __local_bh_enable_ip+0x121/0x230
[   32.139168]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.139836]  ? xfrm_state_flush+0x557/0x630
[   32.140412]  ? trace_hardirqs_on+0xd/0x10
[   32.140972]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   32.141627]  do_invalid_op+0x1b/0x20
[   32.142139]  invalid_op+0x18/0x20
[   32.142604] RIP: 0010:xfrm_state_fini+0x46a/0x620
[   32.143244] RSP: 0018:ffff8801d2e870f0 EFLAGS: 00010293
[   32.143958] RAX: ffff8801d2e7c540 RBX: ffff8801cdcb6040 RCX: ffffffff846010fa
[   32.144956] RDX: 0000000000000000 RSI: 1ffff1003a5cf9c9 RDI: ffffed003a5d0e10
[   32.145933] RBP: ffff8801d2e87248 R08: 1ffff1003a5d0da4 R09: 0000000000000000
[   32.153169] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003a5d0e20
[   32.160405] R13: ffff8801d2e87220 R14: 1ffff1003a5d0e24 R15: ffff8801cdcb7500
[   32.167655]  ? xfrm_state_fini+0x46a/0x620
[   32.171865]  ? xfrm_state_init+0x4a0/0x4a0
[   32.176077]  ? mark_held_locks+0xb2/0x100
[   32.180194]  ? kfree+0xe4/0x250
[   32.183446]  ? xfrm_sysctl_fini+0x63/0x80
[   32.187567]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.192552]  ? trace_hardirqs_on+0xd/0x10
[   32.196670]  ? xfrm_policy_fini+0x550/0x550
[   32.200959]  xfrm_net_exit+0x25/0x30
[   32.204640]  ops_exit_list.isra.6+0xae/0x150
[   32.209017]  cleanup_net+0x5c7/0xb60
[   32.212702]  ? unregister_pernet_device+0x80/0x80
[   32.217520]  ? find_held_lock+0x39/0x1d0
[   32.221553]  ? check_noncircular+0x20/0x20
[   32.225765]  ? process_one_work+0xb2f/0x1be0
[   32.230149]  ? __lock_is_held+0xbc/0x140
[   32.234189]  process_one_work+0xbfd/0x1be0
[   32.238403]  ? pwq_dec_nr_in_flight+0x450/0x450
[   32.243041]  ? finish_task_switch+0x1d3/0x740
[   32.247510]  ? finish_task_switch+0x1aa/0x740
[   32.252002]  ? __sched_text_start+0x8/0x8
[   32.256124]  ? check_noncircular+0x20/0x20
[   32.260324]  ? select_task_rq_fair+0x2770/0x2770
[   32.265045]  ? check_noncircular+0x20/0x20
[   32.269252]  ? find_held_lock+0x39/0x1d0
[   32.273293]  ? lock_acquire+0x1d5/0x580
[   32.277233]  ? worker_thread+0x4a3/0x1990
[   32.281354]  ? lock_release+0xda0/0xda0
[   32.285490]  ? retint_kernel+0x10/0x10
[   32.289353]  ? do_raw_spin_trylock+0x190/0x190
[   32.293915]  worker_thread+0x223/0x1990
[   32.297860]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   32.302949]  ? process_one_work+0x1be0/0x1be0
[   32.307420]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.312407]  ? account_kernel_stack+0x155/0x1f0
[   32.317049]  ? put_task_stack+0x116/0x270
[   32.321169]  ? finish_task_switch+0x4cc/0x740
[   32.325638]  ? copy_overflow+0x20/0x20
[   32.329504]  ? __schedule+0x8f3/0x2060
[   32.333355]  ? check_noncircular+0x20/0x20
[   32.337569]  ? find_held_lock+0x39/0x1d0
[   32.341605]  ? find_held_lock+0x39/0x1d0
[   32.345643]  ? lock_downgrade+0x980/0x980
[   32.349759]  ? default_wake_function+0x30/0x50
[   32.354327]  ? __schedule+0x2060/0x2060
[   32.358268]  ? do_wait_intr+0x3e0/0x3e0
[   32.362213]  ? do_raw_spin_trylock+0x190/0x190
[   32.366765]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   32.371839]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.376826]  ? trace_hardirqs_on+0xd/0x10
[   32.380941]  ? __kthread_parkme+0x175/0x240
[   32.385233]  kthread+0x37a/0x440
[   32.388566]  ? process_one_work+0x1be0/0x1be0
[   32.393027]  ? kthread_stop+0x7b0/0x7b0
[   32.396978]  ret_from_fork+0x24/0x30
[   32.401298] Dumping ftrace buffer:
[   32.404895]    (ftrace buffer empty)
[   32.408573] Kernel Offset: disabled
[   32.412172] Rebooting in 86400 seconds..