CVE-2026-72277

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn-t normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn-t memory. This gets particularly hairy if the endpoint doesn-t support cacheable memory attributes, potentially throwing an SError on writeback... While KVM does permit cacheable memory attributes on certain PFNMAP VMAs, kvm_translate_vncr() isn-t currently grabbing the VMA. So do the simpler thing for now and just reject everything that isn-t memory.