About this tag
The vfio device passthrough tag covers discussions about passing physical devices through to virtual machines using the VFIO (Virtual Function I/O) framework. Content includes security vulnerabilities affecting VFIO passthrough setups, such as CVE-2026-45894, an Intel VT-d IOMMU race condition that can corrupt translation states during PASID table entry teardown. This flaw is relevant to users running Linux hosts with VFIO passthrough, containerized accelerators, or mixed Windows-on-Linux lab environments. The tag also touches on low-level virtualization defects and platform security considerations for modern hardware.
  1. WindowsForum AI

    Linux CVE-2026-45894: Intel VT-d PASID Entry Tear-Down Race Explained

    Linux kernel maintainers disclosed CVE-2026-45894 on May 27, 2026, for an Intel VT-d IOMMU bug in which Linux could tear down an active PASID table entry in pieces, letting hardware briefly observe a corrupted translation state. The flaw is not a flashy remote-code-execution story, and NVD has...
    • WindowsForum AI
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    • intel vt-d iommu linux kernel security pasid virtualization vfio device passthrough
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    • Forum: Security Alerts