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 '10.128.0.41' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   43.624683] ==================================================================
[   43.632067] BUG: KMSAN: uninit-value in raw6_local_deliver+0x259/0x1ac0
[   43.638793] CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.16.0+ #82
[   43.645164] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.654490] Call Trace:
[   43.657051]  dump_stack+0x185/0x1d0
[   43.660655]  ? raw6_local_deliver+0x259/0x1ac0
[   43.665215]  kmsan_report+0x142/0x240
[   43.668990]  __msan_warning_32+0x6c/0xb0
[   43.673027]  ? ip6_input_finish+0x55c/0x2110
[   43.677410]  raw6_local_deliver+0x259/0x1ac0
[   43.681799]  ip6_input_finish+0x55c/0x2110
[   43.686010]  ? ip6table_filter_hook+0xb5/0xe0
[   43.690481]  ? __msan_metadata_ptr_for_load_2+0x10/0x20
[   43.695816]  ip6_mc_input+0x697/0x740
[   43.699588]  ? ip6_input+0x320/0x320
[   43.703274]  ? ip6_input_finish+0x2110/0x2110
[   43.707738]  ipv6_rcv+0x20ec/0x26d0
[   43.711338]  ? local_bh_enable+0x40/0x40
[   43.715374]  __netif_receive_skb_core+0x47cf/0x4a80
[   43.720368]  ? ip6_rcv_finish+0x4d0/0x4d0
[   43.724489]  process_backlog+0x62d/0xe20
[   43.728531]  ? rps_trigger_softirq+0x2f0/0x2f0
[   43.733083]  net_rx_action+0x7c1/0x1a70
[   43.737039]  ? net_tx_action+0xab0/0xab0
[   43.741074]  __do_softirq+0x56d/0x93d
[   43.744852]  ? ksoftirqd_should_run+0x30/0x30
[   43.749321]  run_ksoftirqd+0x1f/0x40
[   43.753013]  smpboot_thread_fn+0x488/0x970
[   43.757233]  ? cpu_report_death+0x1e0/0x1e0
[   43.761527]  kthread+0x539/0x720
[   43.764867]  ? cpu_report_death+0x1e0/0x1e0
[   43.769159]  ? kthread_blkcg+0xf0/0xf0
[   43.773021]  ret_from_fork+0x35/0x40
[   43.776706] 
[   43.778301] Uninit was stored to memory at:
[   43.782597]  kmsan_internal_chain_origin+0x12b/0x210
[   43.787671]  kmsan_memcpy_origins+0x11d/0x170
[   43.792137]  kmsan_memmove_origins+0x9/0x10
[   43.796429]  __msan_memmove+0xda/0x130
[   43.800287]  ipv6_frag_rcv+0x5055/0x6970
[   43.804329]  ip6_input_finish+0xa62/0x2110
[   43.808534]  ip6_mc_input+0x697/0x740
[   43.812307]  ipv6_rcv+0x20ec/0x26d0
[   43.815905]  __netif_receive_skb_core+0x47cf/0x4a80
[   43.820901]  process_backlog+0x62d/0xe20
[   43.824939]  net_rx_action+0x7c1/0x1a70
[   43.828884]  __do_softirq+0x56d/0x93d
[   43.832662] Uninit was created at:
[   43.836173]  kmsan_internal_poison_shadow+0xb8/0x1b0
[   43.841249]  kmsan_kmalloc+0x94/0x100
[   43.845024]  kmsan_slab_alloc+0x11/0x20
[   43.848971]  __kmalloc_node_track_caller+0xaed/0x11c0
[   43.854132]  __alloc_skb+0x2cf/0x9f0
[   43.857820]  alloc_skb_with_frags+0x1d4/0xb20
[   43.862285]  sock_alloc_send_pskb+0xb56/0x1190
[   43.866836]  sock_alloc_send_skb+0xca/0xe0
[   43.871043]  __ip6_append_data+0x3387/0x4bb0
[   43.875423]  ip6_make_skb+0x87a/0x1100
[   43.879286]  udpv6_sendmsg+0x427c/0x45b0
[   43.883318]  inet_sendmsg+0x48d/0x740
[   43.887092]  SYSC_sendto+0x6c3/0x7e0
[   43.890785]  SyS_sendto+0x8a/0xb0
[   43.894211]  do_syscall_64+0x309/0x430
[   43.898069]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   43.903228] ==================================================================
[   43.910557] Disabling lock debugging due to kernel taint
[   43.915978] Kernel panic - not syncing: panic_on_warn set ...
[   43.915978] 
[   43.923315] CPU: 0 PID: 7 Comm: ksoftirqd/0 Tainted: G    B            4.16.0+ #82
[   43.930997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.940321] Call Trace:
[   43.942879]  dump_stack+0x185/0x1d0
[   43.946481]  panic+0x39d/0x940
[   43.949655]  ? raw6_local_deliver+0x259/0x1ac0
[   43.954212]  kmsan_report+0x238/0x240
[   43.957985]  __msan_warning_32+0x6c/0xb0
[   43.962020]  ? ip6_input_finish+0x55c/0x2110
[   43.966403]  raw6_local_deliver+0x259/0x1ac0
[   43.970788]  ip6_input_finish+0x55c/0x2110
[   43.974999]  ? ip6table_filter_hook+0xb5/0xe0
[   43.979466]  ? __msan_metadata_ptr_for_load_2+0x10/0x20
[   43.984802]  ip6_mc_input+0x697/0x740
[   43.988583]  ? ip6_input+0x320/0x320
[   43.992271]  ? ip6_input_finish+0x2110/0x2110
[   43.996739]  ipv6_rcv+0x20ec/0x26d0
[   44.000340]  ? local_bh_enable+0x40/0x40
[   44.004380]  __netif_receive_skb_core+0x47cf/0x4a80
[   44.009372]  ? ip6_rcv_finish+0x4d0/0x4d0
[   44.013493]  process_backlog+0x62d/0xe20
[   44.017529]  ? rps_trigger_softirq+0x2f0/0x2f0
[   44.022082]  net_rx_action+0x7c1/0x1a70
[   44.026030]  ? net_tx_action+0xab0/0xab0
[   44.030077]  __do_softirq+0x56d/0x93d
[   44.033857]  ? ksoftirqd_should_run+0x30/0x30
[   44.038323]  run_ksoftirqd+0x1f/0x40
[   44.042010]  smpboot_thread_fn+0x488/0x970
[   44.046238]  ? cpu_report_death+0x1e0/0x1e0
[   44.050532]  kthread+0x539/0x720
[   44.053872]  ? cpu_report_death+0x1e0/0x1e0
[   44.058166]  ? kthread_blkcg+0xf0/0xf0
[   44.062036]  ret_from_fork+0x35/0x40
[   44.066080] Dumping ftrace buffer:
[   44.069597]    (ftrace buffer empty)
[   44.073277] Kernel Offset: disabled
[   44.076877] Rebooting in 86400 seconds..