CVE-2026-53359

CVE-2026-53359 concerns the Linux kernel KVM/x86 shadow paging use-after-free caused by a mismatch in GFN handling when a PDE is modified to a non-leaf page. After the PDE change and memslot deletion, rmap entries tied to the GFN may not be removed, and kvm_mmu_page_get_gfn() can compute an incor...