x86/kexec: fix memory leak of elf header buffer
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 v5.17.14 by commit 115ee42a4c2f26ba2b4ace2668a3f004621f6833. For more details please see the references link.