bpf: Fix crash due to incorrect copymapvalue
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 v5.15.26 by commit 719d1c2524c89ada78c4c9202641c1d9e942a322, it was introduced in version v5.15 by commit 68134668c17f31f51930478f75495b552a411550. For more details please see the references link.