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...

PT-2026-43972

Name of the Vulnerable Software and Affected Versions libusb versions prior to 1.0.30 Description A one-byte out-of-bounds read exists in the parse iad array function within descriptor.c. This occurs when a malformed USB descriptor is supplied where the bLength equals the size minus one, causing...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the Intel VT-d driver failing to clear the Present bit before deleting PASID table entries. This...

Linux Distros Unpatched Vulnerability : CVE-2026-45987

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from KVM/SVM failing to properly save and restore the LBR MSR, resulting in the restoration function...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from KVM nSVM failing to synchronize the interrupt shadow with the cached vmcb12 after VMRUN,...

Linux Distros Unpatched Vulnerability : CVE-2026-46014

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: SVM: Add missing save/restore handling of LBR MSRs MSRIA32DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVMGETMSRINDEXLIST, and LBR MSRs cannot ...

CVE-2026-46059

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN For guests with NRIPS disabled, L1 does not provide NextRIP when running an L2 with an injected soft interrupt, instead it advances the current RIP before...

CVE-2026-46082

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a UD when EFER.SVME is not set. Add a check to properly inject UD when EFER.SVME=0. sean: tag for stable@...

CVE-2026-46076

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

Linux Distros Unpatched Vulnerability : CVE-2026-46071

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: nSVM: Avoid clearing VMCBLBR in vmcb12 svmcopylbrs always marks VMCBLBR dirty in the destination VMCB. However, nestedsvmvmexit uses it to copy LBRs to...

CVE-2026-46071

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Avoid clearing VMCBLBR in vmcb12 svmcopylbrs always marks VMCBLBR dirty in the destination VMCB. However, nestedsvmvmexit uses it to copy LBRs to vmcb12, and clearing clean bits in vmcb12 is not architecturally defined...

Linux Kernel Security Vulnerabilities

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the KVM SVM module not properly injecting UD exceptions when EFER.SVME=0 is set. This may lead to...

PT-2026-43761

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Intel VT-d Scalable Mode PASID table entry handling. The current implementation zeros the entire 64-byte structure immediately using multiple 64-bit writes when...

PT-2026-43938

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nSVM component where the svm copy lbrs function always marks VMCB LBR as dirty in the destination VMCB. Because nested svm vmexit uses this to copy Last Branch...

PT-2026-43811

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 tearing down a context entry involves zeroing a 128-bit entry using multiple 64-bit writes. This process can create a window where...

CVE-2026-45944

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

PT-2026-43881

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description In the KVM SVM component, there is a failure in the save and restore handling of Last Branch Record LBR Model Specific Registers MSRs. Specifically, MSR IA32 DEBUGCTLMSR and LBR MSRs are no...

PT-2026-43943

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nSVM component where a VMMCALL is not properly handled when L2 is active, L1 does not want to intercept the VMMCALL, nested svm l2 tlb flush enabled is true, a...

CVE-2026-45862

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush cache for PASID table before using it When writing the address of a freshly allocated zero-initialized PASID table to a PASID directory entry, do that after the CPU cache flush for this PASID table, not before i...