CVE-2026-64104

In the Linux kernel, the following vulnerability has been resolved:

virt: sev-guest: Explicitly leak pages in unknown state

When set_memory_{encrypted,decrypted}() fail, the user cannot know at which

point the function failed, meaning that the pages are left in an unknown state

from the point of view of the caller.

Since the pages may be left in an unencrypted state, they are not suitable for

general use, and cannot be returned safely to the buddy allocator. Avoid the

issue by never freeing the pages, and then do the proper accounting by calling

snp_leak_pages().