In __pkvm_guest_relinquish_to_host of mem_protect.c, there is a possible out-of-bounds write due to improper input…

In __pkvm_guest_relinquish_to_host of mem_protect.c, there is a possible out-of-bounds write due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.