ipv4: prevent potential spectre v1 gadget in fibmetricsmatch()
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 v5.4.231 by commit 8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d, it was introduced in version v4.14 by commit 5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8. For more details please see the references link.