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-next-kasan-gce-6,10.128.0.19' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   27.264808] BUG: unable to handle kernel NULL pointer dereference at 0000000000000286
[   27.265991] IP: 0x286
[   27.266322] PGD 0 
[   27.266324] P4D 0 
[   27.266637] 
[   27.267182] Oops: 0010 [#1] SMP KASAN
[   27.267718] Dumping ftrace buffer:
[   27.268192]    (ftrace buffer empty)
[   27.268686] Modules linked in:
[   27.269129] CPU: 1 PID: 32 Comm: kworker/u4:2 Not tainted 4.13.0-rc5-next-20170817+ #5
[   27.270198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.271474] Workqueue: kstrp strp_work
[   27.272158] task: ffff8801d996a040 task.stack: ffff8801d9970000
[   27.272983] RIP: 0010:0x286
[   27.273379] RSP: 0018:ffff8801d9977540 EFLAGS: 00010246
[   27.274149] RAX: dffffc0000000000 RBX: ffff8801d74bed60 RCX: 0000000000000000
[   27.275116] RDX: 1ffff1003ae97dbd RSI: ffffffff85b34380 RDI: ffff8801d74bec48
[   27.276189] RBP: ffff8801d9977558 R08: 0000000000000000 R09: 0000000000000000
[   27.277162] R10: ffff8801d9977438 R11: dffffc0000000000 R12: ffff8801d74bec48
[   27.278115] R13: ffff8801d9836e18 R14: ffff8801d9977980 R15: ffff8801d9836e00
[   27.279243] FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   27.280373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.281210] CR2: 0000000000000286 CR3: 00000001d454a000 CR4: 00000000001406e0
[   27.282230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.283182] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.284134] Call Trace:
[   27.284523]  ? strp_work+0x41/0xf0
[   27.285004]  process_one_work+0xbf3/0x1bc0
[   27.289206]  ? _raw_spin_unlock_irq+0x27/0x70
[   27.293684]  ? pwq_dec_nr_in_flight+0x450/0x450
[   27.298330]  ? preempt_notifier_dec+0x20/0x20
[   27.302798]  ? __schedule+0x8f0/0x2070
[   27.306656]  ? check_noncircular+0x20/0x20
[   27.310854]  ? check_noncircular+0x20/0x20
[   27.315056]  ? select_task_rq_fair+0xec9/0x3380
[   27.319687]  ? lock_downgrade+0x990/0x990
[   27.323801]  ? check_noncircular+0x20/0x20
[   27.328002]  ? kvm_sched_clock_read+0x25/0x40
[   27.332473]  ? lock_acquire+0x1d5/0x580
[   27.336409]  ? lock_acquire+0x1d5/0x580
[   27.340352]  ? worker_thread+0x4a3/0x1860
[   27.344465]  ? lock_downgrade+0x990/0x990
[   27.348579]  ? lock_release+0xa40/0xa40
[   27.352517]  ? do_raw_spin_trylock+0x190/0x190
[   27.357066]  ? pr_cont_work+0x130/0x130
[   27.361012]  worker_thread+0x223/0x1860
[   27.364962]  ? process_one_work+0x1bc0/0x1bc0
[   27.369423]  ? _raw_spin_unlock_irq+0x27/0x70
[   27.373894]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.378885]  ? trace_hardirqs_on+0xd/0x10
[   27.382999]  ? _raw_spin_unlock_irq+0x27/0x70
[   27.387459]  ? finish_task_switch+0x1d3/0x740
[   27.391916]  ? finish_task_switch+0x1aa/0x740
[   27.396377]  ? preempt_notifier_dec+0x20/0x20
[   27.400841]  ? __schedule+0x8f0/0x2070
[   27.404699]  ? try_to_wake_up+0xf9/0x1600
[   27.408817]  ? migrate_swap_stop+0x970/0x970
[   27.413191]  ? find_held_lock+0x35/0x1d0
[   27.417218]  ? complete+0x62/0x80
[   27.420640]  ? __schedule+0x2070/0x2070
[   27.424578]  ? __lockdep_init_map+0xe4/0x650
[   27.428950]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   27.434020]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.439000]  ? trace_hardirqs_on+0xd/0x10
[   27.443115]  ? __kthread_parkme+0x173/0x240
[   27.447402]  kthread+0x35e/0x430
[   27.450734]  ? process_one_work+0x1bc0/0x1bc0
[   27.455194]  ? kthread_create_on_node+0x100/0x100
[   27.459999]  ret_from_fork+0x2a/0x40
[   27.463682] Code:  Bad RIP value.
[   27.467101] RIP: 0x286 RSP: ffff8801d9977540
[   27.471476] CR2: 0000000000000286
[   27.474897] ---[ end trace 984375cb6efdf86f ]---
[   27.479614] Kernel panic - not syncing: Fatal exception
[   27.484971] Dumping ftrace buffer:
[   27.488475]    (ftrace buffer empty)
[   27.492152] Kernel Offset: disabled
[   27.495746] Rebooting in 86400 seconds..