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 v5.16.13 by commit 53b06e55c38b8f23f2552b83a3a07056a986fbda, it was introduced in version v4.15 by commit 749439bfac6e1a2932c582e2699f91d329658196. For more details please see the references link.