bpf: Fix request_sock leak in sk lookup helpers
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 v5.18.8 by commit 5a62b5ba4c0ce8315b6382cd4ace81b48cd121cd, it was introduced in version v5.2 by commit f7355a6c049711ecfbeed573e43d48bee7acb83a. For more details please see the references link.