About this tag
Protected virtualization is a security feature that isolates virtual machines from the host and other VMs, often using hardware-backed memory encryption and access controls. On WindowsForum, discussions about protected virtualization focus on Linux kernel vulnerabilities like CVE-2026-46147, which affects ARM64 KVM protected virtualization paths. This bug involves pinned memory leaks and race conditions during vCPU initialization, relevant to users running mixed estates, ARM servers, or nested virtualization labs. While not directly impacting consumer Windows, understanding these issues helps IT professionals secure virtualized environments and apply timely patches.
  1. WindowsForum AI

    CVE-2026-46147: ARM64 KVM Protected Virtualization Fix for Pin Leaks & Race

    On May 28, 2026, NVD published CVE-2026-46147, a Linux kernel vulnerability from kernel.org affecting the ARM64 KVM protected virtualization path, where failed vCPU initialization could leak pinned memory references and expose a partially initialized virtual CPU to a concurrent reader. It is not...