ipv6: Fix signed integer overflow in l2tpip6sendmsg
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.285 by commit 0e818d433fc2718fe4da044ffca7431812a7e04e. For more details please see the references link.