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 '10.128.10.22' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   30.164779] ==================================================================
[   30.172283] BUG: KMSAN: uninit-value in memcmp+0x119/0x180
[   30.177916] CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.16.0+ #82
[   30.184318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.193686] Workqueue: ipv6_addrconf addrconf_dad_work
[   30.198962] Call Trace:
[   30.201561]  dump_stack+0x185/0x1d0
[   30.205216]  ? memcmp+0x119/0x180
[   30.208673]  kmsan_report+0x142/0x240
[   30.212484]  __msan_warning_32+0x6c/0xb0
[   30.216549]  memcmp+0x119/0x180
[   30.219845]  __dev_mc_add+0x1c2/0x8e0
[   30.223658]  ? ndisc_mc_map+0x59f/0x8c0
[   30.227634]  dev_mc_add+0x6d/0x80
[   30.231092]  igmp6_group_added+0x2db/0xa00
[   30.235338]  ipv6_dev_mc_inc+0xe9e/0x1130
[   30.239495]  addrconf_dad_work+0x427/0x2150
[   30.243823]  ? ipv6_get_saddr_eval+0x1130/0x1130
[   30.248585]  ? ipv6_get_saddr_eval+0x1130/0x1130
[   30.253348]  process_one_work+0x12c6/0x1f60
[   30.257685]  worker_thread+0x113c/0x24f0
[   30.261763]  ? process_one_work+0x1f60/0x1f60
[   30.266254]  kthread+0x539/0x720
[   30.269616]  ? process_one_work+0x1f60/0x1f60
[   30.274097]  ? kthread_blkcg+0xf0/0xf0
[   30.277976]  ret_from_fork+0x35/0x40
[   30.281670] 
[   30.283279] Local variable description: ----buf@igmp6_group_added
[   30.289491] Variable was created at:
[   30.293192]  igmp6_group_added+0x4a/0xa00
[   30.297338]  ipv6_dev_mc_inc+0xe9e/0x1130
[   30.301465] ==================================================================
[   30.308801] Disabling lock debugging due to kernel taint
[   30.314232] Kernel panic - not syncing: panic_on_warn set ...
[   30.314232] 
[   30.321587] CPU: 0 PID: 3 Comm: kworker/0:0 Tainted: G    B            4.16.0+ #82
[   30.329272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.338618] Workqueue: ipv6_addrconf addrconf_dad_work
[   30.343939] Call Trace:
[   30.346518]  dump_stack+0x185/0x1d0
[   30.350221]  panic+0x39d/0x940
[   30.353416]  ? memcmp+0x119/0x180
[   30.356854]  kmsan_report+0x238/0x240
[   30.360685]  __msan_warning_32+0x6c/0xb0
[   30.364746]  memcmp+0x119/0x180
[   30.368025]  __dev_mc_add+0x1c2/0x8e0
[   30.371821]  ? ndisc_mc_map+0x59f/0x8c0
[   30.375783]  dev_mc_add+0x6d/0x80
[   30.379223]  igmp6_group_added+0x2db/0xa00
[   30.383447]  ipv6_dev_mc_inc+0xe9e/0x1130
[   30.387590]  addrconf_dad_work+0x427/0x2150
[   30.391903]  ? ipv6_get_saddr_eval+0x1130/0x1130
[   30.396641]  ? ipv6_get_saddr_eval+0x1130/0x1130
[   30.401385]  process_one_work+0x12c6/0x1f60
[   30.405701]  worker_thread+0x113c/0x24f0
[   30.409756]  ? process_one_work+0x1f60/0x1f60
[   30.414235]  kthread+0x539/0x720
[   30.417604]  ? process_one_work+0x1f60/0x1f60
[   30.422091]  ? kthread_blkcg+0xf0/0xf0
[   30.425967]  ret_from_fork+0x35/0x40
[   30.430152] Dumping ftrace buffer:
[   30.433675]    (ftrace buffer empty)
[   30.437361] Kernel Offset: disabled
[   30.440965] Rebooting in 86400 seconds..