SELinux: failure in selinux_parse_skb(), unable to parse packet
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff8343602e

CPU: 0 PID: 11138 Comm: syz-executor4 Not tainted 4.4.152-ge5c5f1f #25
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 671fde442ac4f1e6 ffff8801bca27500 ffffffff81e15fed
 ffffffff83a44c60 00000000ffffffff ffff8801d20aabc0 ffff8801bca27840
 0000000000001000 ffff8801bca275c0 ffffffff8140d424 0000000041b58ab3
Call Trace:
 [<ffffffff81e15fed>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81e15fed>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff8140d424>] panic+0x19e/0x38d kernel/panic.c:112
 [<ffffffff81132b72>] __stack_chk_fail+0x22/0x30 kernel/panic.c:506
 [<ffffffff8343602e>] ip6_xmit+0x18ae/0x1a00 net/ipv6/ip6_output.c:256
 [<ffffffff834f60c5>] inet6_csk_xmit+0x245/0x490 net/ipv6/inet6_connection_sock.c:176
 [<ffffffff835a570c>] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline]
 [<ffffffff835a570c>] l2tp_xmit_skb+0xb9c/0xe80 net/l2tp/l2tp_core.c:1179
 [<ffffffff835b1c60>] pppol2tp_sendmsg+0x4e0/0x7d0 net/l2tp/l2tp_ppp.c:355
 [<ffffffff82f2727c>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff82f2727c>] sock_sendmsg+0xcc/0x110 net/socket.c:648
 [<ffffffff82f28a41>] ___sys_sendmsg+0x441/0x880 net/socket.c:1975
 [<ffffffff82f2b0d4>] __sys_sendmmsg+0x1d4/0x2e0 net/socket.c:2053
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=51 sclass=netlink_route_socket
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=51 sclass=netlink_route_socket
 [<ffffffff83014b22>] C_SYSC_sendmmsg net/compat.c:728 [inline]
 [<ffffffff83014b22>] compat_SyS_sendmmsg+0x32/0x40 net/compat.c:725
 [<ffffffff81006d94>] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline]
 [<ffffffff81006d94>] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460
 [<ffffffff838cdec3>] sysenter_flags_fixed+0xd/0x1a
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..