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 '10.128.10.42' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   43.737809] IPVS: ftp: loaded support on port[0] = 21
[   43.770782] ==================================================================
[   43.778171] BUG: KMSAN: uninit-value in rt6_multipath_hash+0x5c4/0x640
[   43.784812] CPU: 0 PID: 4507 Comm: syz-executor661 Not tainted 4.16.0+ #87
[   43.791796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.801135] Call Trace:
[   43.803719]  dump_stack+0x185/0x1d0
[   43.807331]  ? rt6_multipath_hash+0x5c4/0x640
[   43.811802]  kmsan_report+0x142/0x240
[   43.815579]  __msan_warning_32+0x6c/0xb0
[   43.819614]  rt6_multipath_hash+0x5c4/0x640
[   43.823909]  ? kmsan_memcpy_origins+0xf1/0x170
[   43.828467]  ip6_route_input+0x65a/0x920
[   43.832509]  ip6_rcv_finish+0x413/0x6e0
[   43.836461]  ipv6_rcv+0x1e16/0x2340
[   43.840072]  __netif_receive_skb_core+0x47df/0x4a90
[   43.845072]  ? ip6_rcv_finish+0x6e0/0x6e0
[   43.849198]  netif_receive_skb_internal+0x49d/0x630
[   43.854192]  ? netif_receive_skb+0x47/0x240
[   43.858491]  netif_receive_skb+0x230/0x240
[   43.862706]  tun_get_user+0x740f/0x7c60
[   43.866669]  tun_chr_write_iter+0x1d4/0x330
[   43.870969]  ? tun_chr_read_iter+0x460/0x460
[   43.875363]  __vfs_write+0x7fb/0x9f0
[   43.879077]  vfs_write+0x463/0x8d0
[   43.882600]  SYSC_write+0x172/0x360
[   43.886206]  SyS_write+0x55/0x80
[   43.889635]  do_syscall_64+0x309/0x430
[   43.893499]  ? SYSC_read+0x360/0x360
[   43.897195]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   43.902363] RIP: 0033:0x449c09
[   43.905527] RSP: 002b:00007f8ea52f3d98 EFLAGS: 00000297 ORIG_RAX: 0000000000000001
[   43.913213] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000449c09
[   43.920459] RDX: 000000000000fdea RSI: 0000000020000300 RDI: 0000000000000004
[   43.927704] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 000000000000a37d
[   43.934958] R10: 0000000000000007 R11: 0000000000000297 R12: 0000000000000000
[   43.942314] R13: 00007ffc9cf3797f R14: 00007f8ea52f49c0 R15: 0000000000000005
[   43.949565] 
[   43.951170] Uninit was created at:
[   43.954698]  kmsan_internal_poison_shadow+0xb8/0x1b0
[   43.959781]  kmsan_kmalloc+0x94/0x100
[   43.963556]  kmsan_slab_alloc+0x11/0x20
[   43.967518]  __kmalloc_node_track_caller+0xaed/0x11c0
[   43.972684]  __alloc_skb+0x2cf/0x9f0
[   43.976373]  alloc_skb_with_frags+0x1d4/0xb20
[   43.980845]  sock_alloc_send_pskb+0xb56/0x1190
[   43.985403]  tun_get_user+0x2242/0x7c60
[   43.989354]  tun_chr_write_iter+0x1d4/0x330
[   43.993650]  __vfs_write+0x7fb/0x9f0
[   43.997340]  vfs_write+0x463/0x8d0
[   44.000853]  SYSC_write+0x172/0x360
[   44.004457]  SyS_write+0x55/0x80
[   44.007796]  do_syscall_64+0x309/0x430
[   44.011659]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   44.016823] ==================================================================
[   44.024160] Disabling lock debugging due to kernel taint
[   44.029584] Kernel panic - not syncing: panic_on_warn set ...
[   44.029584] 
[   44.036924] CPU: 0 PID: 4507 Comm: syz-executor661 Tainted: G    B            4.16.0+ #87
[   44.045216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.054549] Call Trace:
[   44.057120]  dump_stack+0x185/0x1d0
[   44.060723]  panic+0x39d/0x940
[   44.063906]  ? rt6_multipath_hash+0x5c4/0x640
[   44.068379]  kmsan_report+0x238/0x240
[   44.072159]  __msan_warning_32+0x6c/0xb0
[   44.076232]  rt6_multipath_hash+0x5c4/0x640
[   44.080535]  ? kmsan_memcpy_origins+0xf1/0x170
[   44.085096]  ip6_route_input+0x65a/0x920
[   44.089145]  ip6_rcv_finish+0x413/0x6e0
[   44.093280]  ipv6_rcv+0x1e16/0x2340
[   44.096894]  __netif_receive_skb_core+0x47df/0x4a90
[   44.101898]  ? ip6_rcv_finish+0x6e0/0x6e0
[   44.106042]  netif_receive_skb_internal+0x49d/0x630
[   44.111060]  ? netif_receive_skb+0x47/0x240
[   44.115365]  netif_receive_skb+0x230/0x240
[   44.119582]  tun_get_user+0x740f/0x7c60
[   44.123543]  tun_chr_write_iter+0x1d4/0x330
[   44.127844]  ? tun_chr_read_iter+0x460/0x460
[   44.132231]  __vfs_write+0x7fb/0x9f0
[   44.135925]  vfs_write+0x463/0x8d0
[   44.139447]  SYSC_write+0x172/0x360
[   44.143057]  SyS_write+0x55/0x80
[   44.146407]  do_syscall_64+0x309/0x430
[   44.150278]  ? SYSC_read+0x360/0x360
[   44.153970]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   44.159143] RIP: 0033:0x449c09
[   44.162309] RSP: 002b:00007f8ea52f3d98 EFLAGS: 00000297 ORIG_RAX: 0000000000000001
[   44.169993] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000449c09
[   44.177251] RDX: 000000000000fdea RSI: 0000000020000300 RDI: 0000000000000004
[   44.184496] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 000000000000a37d
[   44.191913] R10: 0000000000000007 R11: 0000000000000297 R12: 0000000000000000
[   44.199162] R13: 00007ffc9cf3797f R14: 00007f8ea52f49c0 R15: 0000000000000005
[   44.208475] Dumping ftrace buffer:
[   44.211996]    (ftrace buffer empty)
[   44.215678] Kernel Offset: disabled
[   44.219454] Rebooting in 86400 seconds..