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 v5.15.91 by commit ca3cf947760de050d558293002ad3e7f4b8745d2, it was introduced in version v4.14 by commit 5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8. For more details please see the references link.