intel vt-d iommu

Discussions tagged with intel vt-d iommu on WindowsForum.com cover Intel VT-d IOMMU security and stability issues, particularly in Linux environments. A notable thread explains CVE-2026-45894, a race condition where Linux tears down a PASID table entry in pieces, allowing hardware to observe a corrupted translation state. This low-level virtualization defect affects users running Linux hosts, VFIO passthrough setups, containerized accelerators, and mixed Windows-on-Linux labs. The tag also touches on the broader theme of modern platform security requiring careful choreography between kernel writes and hardware visibility. While the content focuses on Linux, it is relevant to Windows users leveraging virtualization or hardware passthrough.