kAFL

kAFL HW-assisted Feedback Fuzzer for x86 VMs kAFL/Nyx is a fast guided fuzzer for the x86 VM. It is great for anything that executes as QEMU/KVM guest, in particular x86 firmware, kernels and full-blown operating systems. Note: All components are provided for research and validation purposes only...

matrix-rs

Windows Kernel Blue Pill Type-2 Hypervisor in Rust Codename: Matrix Blog: https://memn0ps.github.io/hypervisors-for-memory-introspection-and-reverse-engineering/ A lightweight, memory-safe, and blazingly fast Rust-based type-2 research hypervisor with hooks for Intel VT-x, focused on studying the...

Hello-VT-rp

Hello-VT-rp A simple hypervisor demonstrating the use of the Intel VT-rp redirect protection technology. This repository is a complement of the Intel VT-rp blog post series and not meant for a general use. For the overview of Intel VT-rp, please read the post. The hypervisor The hypervisor/...

illusion-rs

Windows UEFI Blue Pill Type-1 Hypervisor in Rust Codename: Illusion Blog: https://memn0ps.github.io/hypervisors-for-memory-introspection-and-reverse-engineering/ A lightweight, memory-safe, and blazingly fast Rust-based type-1 research hypervisor with hooks for Intel VT-x, focused on studying the...

kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry

A flaw was found in the Linux kernel's Intel VT-d Virtualization Technology for Directed I/O Scalable Mode. When a Process Address Space ID PASID table entry is being removed, the system may attempt to clear the entry before properly signaling to the hardware that the entry is no longer active...

kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry

A flaw was found in the Linux kernel's Intel VT-d Virtualization Technology for Directed I/O Scalable Mode. When a Process Address Space ID PASID table entry is being removed, the system may attempt to clear the entry before properly signaling to the hardware that the entry is no longer active...

kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry

A flaw was found in the Linux kernel's Intel VT-d Virtualization Technology for Directed I/O Scalable Mode. When a Process Address Space ID PASID table entry is being removed, the system may attempt to clear the entry before properly signaling to the hardware that the entry is no longer active...

kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry

A flaw was found in the Linux kernel's Intel VT-d Virtualization Technology for Directed I/O Scalable Mode. When a Process Address Space ID PASID table entry is being removed, the system may attempt to clear the entry before properly signaling to the hardware that the entry is no longer active...

CVE-2026-89448

CVE-2026-89448 is a CRITICAL (CVSS 9.3) vulnerability in the Linux kernel's Intel VT-d IOMMU subsystem. The function detect_intel_iommu() fails to check for tboot when determining whether to request ACS (Access Control Services) . When tboot is enabled, tboot_force_iommu() forces the IOMMU on, bu...

PT-2026-90164

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A misconfiguration occurs in the iommu/vt-d component when tboot is enabled. The detect intel iommu function fails to include tboot in the conditions for requesting Access Control Servic...

PT-2026-72875

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the iommu/vt-d component where the device pasid table teardown function zeroes a 128-bit scalable-mode context entry using context clear entry while the Present bit...

HyperDbg v0.23

HyperDbg Debugger HyperDbg Debugger is an open-source, hypervisor-assisted debugger for Windows Linux support is currently under development! with support for both user-mode and kernel-mode native debugging. It is built for reverse engineering, fuzzing, and advanced system analysis using modern...

HyperDbg v0.22

HyperDbg Debugger HyperDbg Debugger is an open-source, hypervisor-assisted debugger for Windows Linux support is currently under development! with support for both user-mode and kernel-mode native debugging. It is built for reverse engineering, fuzzing, and advanced system analysis using modern...

CVE-2026-45945

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement The Intel VT-d PASID table entry is 512 bits 64 bytes. When replacing an active PASID entry e.g., during domain replacement, the current implementation calculates a ne...

CVE-2026-45894

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...

CVE-2026-45945 iommu/vt-d: Fix race condition during PASID entry replacement

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement The Intel VT-d PASID table entry is 512 bits 64 bytes. When replacing an active PASID entry e.g., during domain replacement, the current implementation calculates a ne...

MiracleLinux 3 : kernel-2.6.18-274.5.AXS3 (AXSA:2012-220:01)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-220:01 advisory. The kernel package contains the Linux kernel vmlinuz, the core of any Linux operating system. The kernel handles the basic functions of the operating...

CVE-2025-40058

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Disallow dirty tracking if incoherent page walk Dirty page tracking relies on the IOMMU atomically updating the dirty bit in the paging-structure entry. For this operation to succeed, the paging- structure memory must...

CVE-2025-40058 iommu/vt-d: Disallow dirty tracking if incoherent page walk

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Disallow dirty tracking if incoherent page walk Dirty page tracking relies on the IOMMU atomically updating the dirty bit in the paging-structure entry. For this operation to succeed, the paging- structure memory must...

CVE-2025-40058: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Disallow dirty tracking if incoherent page walk Dirty page tracking relies on the IOMMU atomically updating the dirty bit in the paging-structure entry. For this operation to succeed, the paging- structure memory must...