Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated The issue was addressed by explicitly setting/clearing the CR8 write interception when AVIC is deactivated. This fixes a bug where KVM kept the interception...

CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

Linux Distros Unpatched Vulnerability : CVE-2026-64604

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so...

CVE-2026-64604: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

CVE-2026-64604

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode When updating CR8 intercepts, get vmcs12 if and only if the vCPU is in guest mode so that a future change can have update CR8 intercepts during vCPU...

PT-2026-68436

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM VMX component where the system fails to conditionally grab vmcs12 during CR8 interception updates. Specifically, vmcs12 should only be retrieved if the vCPU is...

CVE-2026-64513

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for x86 architectures. When the apicupdateppr function does not find a deliverable interrupt, it fails to recompute the CR8 intercept, leading to a stale Task Priority Register Threshold TPRTHRESHOLD. This issue can cause a...

SUSE CVE-2026-64513

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TPR falls under the specified threshold, allowing KVM to inject...

AZL-93563 CVE-2026-64513 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TPR falls under the specified threshold, allowing KVM to inject...

UBUNTU-CVE-2026-64513

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TPR falls under the specified threshold, allowing KVM to inject...

CVE-2026-64513

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TPR falls under the specified threshold, allowing KVM to inject...

CVE-2026-64513

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TPR falls under the specified threshold, allowing KVM to inject...

PT-2026-64734

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 implementation where the TPR THRESHOLD field in the VMCS is not correctly updated during certain PPR updates. When apic update ppr is called and no...

SUSE CVE-2026-43483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

EUVD-2026-30019

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

CVE-2026-43483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

UBUNTU-CVE-2026-43483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

CVE-2026-43483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

CVE-2026-43483 KVM: SVM: Set/clear CR8 write interception when AVIC is (de)activated

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is deactivated Explicitly set/clear CR8 write interception when AVIC is deactivated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM...

CVE-2026-43483

CVE-2026-43483 (Linux kernel, KVM/VMX-SVM) fixes a flaw in SVM AVIC handling where CR8 write interception could remain enabled after AVIC activation. The patch explicitly sets/clears CR8 interception when AVIC is (de)activated to prevent the dangling intercept, which could cause TPR desynchroniza...