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-5,10.128.0.54' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.674177] BUG: unable to handle kernel NULL pointer dereference at 0000000000000286
[   32.682158] IP: 0x286
[   32.684531] PGD 0 
[   32.684534] P4D 0 
[   32.686646] 
[   32.690347] Oops: 0010 [#1] SMP KASAN
[   32.694109] Dumping ftrace buffer:
[   32.697611]    (ftrace buffer empty)
[   32.701285] Modules linked in:
[   32.704443] CPU: 1 PID: 28 Comm: kworker/u4:2 Not tainted 4.13.0-rc5-next-20170817+ #5
[   32.712462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.721795] Workqueue: kstrp strp_work
[   32.725649] task: ffff8801d9948740 task.stack: ffff8801d9950000
[   32.731672] RIP: 0010:0x286
[   32.734566] RSP: 0018:ffff8801d9957540 EFLAGS: 00010246
[   32.739892] RAX: dffffc0000000000 RBX: ffff8801cf01ed60 RCX: 0000000000000000
[   32.747129] RDX: 1ffff10039e03dbd RSI: ffffffff85b34380 RDI: ffff8801cf01ec48
[   32.754368] RBP: ffff8801d9957558 R08: 0000000000000000 R09: 0000000000000000
[   32.761608] R10: ffff8801d9957438 R11: dffffc0000000000 R12: ffff8801cf01ec48
[   32.768846] R13: ffff8801d989f718 R14: ffff8801d9957980 R15: ffff8801d989f700
[   32.776087] FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   32.784279] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.790129] CR2: 0000000000000286 CR3: 00000001d038a000 CR4: 00000000001406e0
[   32.797369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.804611] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.811847] Call Trace:
[   32.814415]  ? strp_work+0x41/0xf0
[   32.817925]  process_one_work+0xbf3/0x1bc0
[   32.822127]  ? _raw_spin_unlock_irq+0x27/0x70
[   32.826597]  ? pwq_dec_nr_in_flight+0x450/0x450
[   32.831241]  ? preempt_notifier_dec+0x20/0x20
[   32.835708]  ? __schedule+0x8f0/0x2070
[   32.839570]  ? check_noncircular+0x20/0x20
[   32.843773]  ? check_noncircular+0x20/0x20
[   32.847976]  ? select_task_rq_fair+0xec9/0x3380
[   32.852609]  ? check_noncircular+0x20/0x20
[   32.856808]  ? check_noncircular+0x20/0x20
[   32.861012]  ? kvm_sched_clock_read+0x25/0x40
[   32.865486]  ? lock_acquire+0x1d5/0x580
[   32.869431]  ? lock_acquire+0x1d5/0x580
[   32.873376]  ? worker_thread+0x4a3/0x1860
[   32.877497]  ? lock_downgrade+0x990/0x990
[   32.881612]  ? lock_release+0xa40/0xa40
[   32.885638]  ? do_raw_spin_trylock+0x190/0x190
[   32.890187]  ? pr_cont_work+0x130/0x130
[   32.894138]  worker_thread+0x223/0x1860
[   32.898087]  ? process_one_work+0x1bc0/0x1bc0
[   32.902555]  ? _raw_spin_unlock_irq+0x27/0x70
[   32.907016]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.911998]  ? trace_hardirqs_on+0xd/0x10
[   32.916112]  ? _raw_spin_unlock_irq+0x27/0x70
[   32.920572]  ? finish_task_switch+0x1d3/0x740
[   32.925042]  ? finish_task_switch+0x1aa/0x740
[   32.929511]  ? preempt_notifier_dec+0x20/0x20
[   32.933980]  ? __schedule+0x8f0/0x2070
[   32.937838]  ? try_to_wake_up+0xf9/0x1600
[   32.941962]  ? migrate_swap_stop+0x970/0x970
[   32.946340]  ? cache_grow_end.part.41+0x84/0x180
[   32.951066]  ? find_held_lock+0x35/0x1d0
[   32.955094]  ? complete+0x62/0x80
[   32.958514]  ? __schedule+0x2070/0x2070
[   32.962456]  ? __lockdep_init_map+0xe4/0x650
[   32.966832]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   32.971912]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.976896]  ? trace_hardirqs_on+0xd/0x10
[   32.981010]  ? __kthread_parkme+0x173/0x240
[   32.985322]  kthread+0x35e/0x430
[   32.988656]  ? process_one_work+0x1bc0/0x1bc0
[   32.993115]  ? kthread_create_on_node+0x100/0x100
[   32.997928]  ret_from_fork+0x2a/0x40
[   33.001611] Code:  Bad RIP value.
[   33.005029] RIP: 0x286 RSP: ffff8801d9957540
[   33.009396] CR2: 0000000000000286
[   33.012820] ---[ end trace dd46334e1bf9e38f ]---
[   33.017538] Kernel panic - not syncing: Fatal exception
[   33.023145] Dumping ftrace buffer:
[   33.026649]    (ftrace buffer empty)
[   33.030324] Kernel Offset: disabled
[   33.033921] Rebooting in 86400 seconds..