xfrm: fix MTU regression
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 v4.9.305 by commit 80080bbcb25d386add6482aea9969e89834a8678, it was introduced in version v4.9.79 by commit fb50d8c9169ee0e90cd7a733d65cb86876d795c7. For more details please see the references link.