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-net-kasan-gce-0,10.128.0.25' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz0.router_solicitations = 0
executing program
syzkaller login: [   41.856687] ------------[ cut here ]------------
[   41.861523] WARNING: CPU: 0 PID: 2985 at net/ipv6/ip6_fib.c:1137 fib6_add+0x20d9/0x2c10
[   41.869855] Kernel panic - not syncing: panic_on_warn set ...
[   41.869855] 
[   41.877191] CPU: 0 PID: 2985 Comm: syzkaller320388 Not tainted 4.14.0-rc3+ #74
[   41.884536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.893865] Call Trace:
[   41.896430]  dump_stack+0x194/0x257
[   41.900032]  ? arch_local_irq_restore+0x53/0x53
[   41.904685]  panic+0x1e4/0x417
[   41.907848]  ? __warn+0x1d9/0x1d9
[   41.911274]  ? show_regs_print_info+0x65/0x65
[   41.915754]  ? fib6_add+0x20d9/0x2c10
[   41.919523]  __warn+0x1c4/0x1d9
[   41.922774]  ? fib6_add+0x20d9/0x2c10
[   41.926547]  report_bug+0x211/0x2d0
[   41.930152]  fixup_bug+0x40/0x90
[   41.933488]  do_trap+0x260/0x390
[   41.936830]  do_error_trap+0x120/0x390
[   41.940688]  ? do_raw_spin_trylock+0x190/0x190
[   41.945241]  ? do_trap+0x390/0x390
[   41.948751]  ? fib6_add+0x20d9/0x2c10
[   41.952534]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   41.957351]  do_invalid_op+0x1b/0x20
[   41.961035]  invalid_op+0x18/0x20
[   41.964456] RIP: 0010:fib6_add+0x20d9/0x2c10
[   41.968831] RSP: 0018:ffff8801cf09f6a0 EFLAGS: 00010297
[   41.974170] RAX: ffff8801ce45e340 RBX: 1ffff10039e13eec RCX: ffff8801d749c814
[   41.981410] RDX: 0000000000000000 RSI: ffff8801d749c700 RDI: ffff8801d749c780
[   41.988659] RBP: ffff8801cf09fa08 R08: 0000000000000000 R09: ffff8801cf09f360
[   41.995900] R10: ffff8801cf09f2d8 R11: 1ffff10039c8befb R12: 0000000000000001
[   42.003138] R13: dffffc0000000000 R14: ffff8801d749c700 R15: ffffffff860655c0
[   42.010414]  ? memset+0x37/0x40
[   42.013664]  ? fib6_force_start_gc+0xf0/0xf0
[   42.018046]  ? ip6_default_advmss+0x140/0x140
[   42.022510]  ? ip6_route_info_create+0x7b7/0x24c0
[   42.027328]  ? _find_next_bit+0xee/0x120
[   42.031362]  ? find_next_bit+0x27/0x30
[   42.035221]  ? cpumask_next+0x24/0x30
[   42.038993]  ? ip6_dst_alloc+0x149/0x1d0
[   42.043026]  ? memcpy+0x45/0x50
[   42.046282]  ? lock_acquire+0x1d5/0x580
[   42.050228]  ? __ip6_ins_rt+0x56/0x90
[   42.054000]  ? ip6_convert_metrics.isra.69+0x518/0x6b0
[   42.059249]  ? lock_release+0xd70/0xd70
[   42.063199]  ? rt6_uncached_list_add+0x240/0x240
[   42.067927]  ? __might_fault+0xe0/0x1d0
[   42.071876]  ? __ip6_ins_rt+0x56/0x90
[   42.075654]  __ip6_ins_rt+0x6c/0x90
[   42.079256]  ip6_route_add+0x148/0x1a0
[   42.083116]  ? icmp6_dst_alloc+0x630/0x630
[   42.087333]  ipv6_route_ioctl+0x4d5/0x690
[   42.091454]  ? rt6_purge_dflt_routers+0x9d0/0x9d0
[   42.096299]  ? __do_page_fault+0x31e/0xd60
[   42.100513]  inet6_ioctl+0xef/0x1e0
[   42.104110]  ? inet6_ioctl+0xef/0x1e0
[   42.107887]  sock_do_ioctl+0x65/0xb0
[   42.111575]  sock_ioctl+0x2c2/0x440
[   42.115178]  ? dlci_ioctl_set+0x40/0x40
[   42.119127]  do_vfs_ioctl+0x1b1/0x1530
[   42.122998]  ? ioctl_preallocate+0x2b0/0x2b0
[   42.127384]  ? selinux_capable+0x40/0x40
[   42.131425]  ? __fd_install+0x66b/0x6a0
[   42.135377]  ? sock_map_fd+0x53/0x70
[   42.139083]  ? security_file_ioctl+0x89/0xb0
[   42.143474]  SyS_ioctl+0x8f/0xc0
[   42.146821]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   42.151555] RIP: 0033:0x444e19
[   42.154721] RSP: 002b:00007ffe2baf5d58 EFLAGS: 00000213 ORIG_RAX: 0000000000000010
[   42.162403] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444e19
[   42.169655] RDX: 00000000200d0000 RSI: 000000000000890b RDI: 0000000000000004
[   42.176898] RBP: 0000000000000086 R08: 0000000000000000 R09: 00000000006cffb0
[   42.184140] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000402520
[   42.191382] R13: 00000000004025b0 R14: 0000000000000000 R15: 0000000000000000
[   42.198842] Dumping ftrace buffer:
[   42.202408]    (ftrace buffer empty)
[   42.206094] Kernel Offset: disabled
[   42.209701] Rebooting in 86400 seconds..