[NVD] CVE-2026-63807 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target mem

CVE-2026-63807 CVSS: 8.8 HIGH Published: 2026-07-19T12:16:53.470

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

KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level

When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, *before* querying the max mapping level given th