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...

Linux Distros Unpatched Vulnerability : CVE-2026-43483

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

EUVD-2026-28585

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Remove a user-triggerable WARN on nestedsvmloadcr3 succeeding Drop the WARN in svmsetnestedstate on nestedsvmloadcr3 failing as it is trivially easy to trigger from userspace by modifying CPUID after loading CR3. E.g...

UBUNTU-CVE-2026-43315

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Remove a user-triggerable WARN on nestedsvmloadcr3 succeeding Drop the WARN in svmsetnestedstate on nestedsvmloadcr3 failing as it is trivially easy to trigger from userspace by modifying CPUID after loading CR3. E.g...

CVE-2026-43265

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpublock Ignore -EBUSY when checking nested events after exiting a blocking state while L2 is active, as exiting to userspace will generate a spurious userspace exit,...

CVE-2026-43265 KVM: x86: Ignore -EBUSY when checking nested events from vcpu_block()

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpublock Ignore -EBUSY when checking nested events after exiting a blocking state while L2 is active, as exiting to userspace will generate a spurious userspace exit,...

CVE-2026-43214

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Add SRCU protection for reading PDPTRs in getsregs2 Add SRCU read-side protection when reading PDPTR registers in getsregs2. Reading PDPTRs may trigger access to guest memory: kvmpdptrread - svmcachereg - loadpdptrs -...

CVE-2026-43214

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Add SRCU protection for reading PDPTRs in getsregs2 Add SRCU read-side protection when reading PDPTR registers in getsregs2. Reading PDPTRs may trigger access to guest memory: kvmpdptrread - svmcachereg - loadpdptrs -...

CVE-2026-43214

The CVE-2026-43214 issue concerns Linux kernel KVM on x86: when reading PDPTRs in __get_sregs2(), SRCU read-side protection was missing. The root cause is that kvm_pdptr_read() may dereference guest memory via a chain (svm_cache_reg -> load_pdptrs -> kvm_vcpu_read_guest_page -> kvm_vcpu_...

Linux kernel 安全漏洞

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 KVM x86 architecture’s failure to handle the -EBUSY error when checking nested events,...

RHEL 9 : kernel-rt (RHSA-2026:14137)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:14137 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

AlmaLinux 8 : kernel-rt (ALSA-2026:13578)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:13578 advisory. kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend CVE-2025-40252 kernel: crypto: asymmetricke...

ALSA-2026:13577 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend CVE-2025-40252 kernel: crypto: asymmetricke...

[SECURITY] Fedora 43 Update: edk2-20260213-4.fc43

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. This package contains sample 64-bit UEFI firmware builds for QEMU and KVM...

The vulnerability of the KVM kernel component in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the KVM kernel component in the Linux operating system is related to the operation of data out of the buffer into memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

KVM: x86: Use scratch field in MMIO fragment to hold small write values

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CVE-2026-31591

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. This vulnerability allows a local user in userspace to manipulate or run a virtual CPU vCPU while its state is being synchronized during the Secure Nested Paging SNP launch process. This improper synchronization ca...

CVE-2026-31588

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. This vulnerability, a use-after-free, occurs when KVM processes Memory-mapped I/O MMIO writes that span across different memory pages, and an internal temporary variable is used. A malicious guest operating system ...

CVE-2026-31558

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker could potentially trigger an out-of-bounds memory access by providing a negative 'cpuid' parameter to the 'kvmgetvcpubycpuid' function. This could lead to system instability or potentially other...