CVE-2026-64288

A flaw was found in the kernel's Kernel-based Virtual Machine KVM component for ARM64 architectures. A race condition can occur during the invalidation of the virtual Nested Translation Cache VNCR pseudo-TLB when a virtual CPU vcpu is being brought online or offline. This can lead to a null point...

CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

kernel: KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()

In the Linux kernel, the following vulnerability has been resolved: KVM: Explicitly verify target vCPU is online in kvmgetvcpu Explicitly verify the target vCPU is fully online prior to clamping the index in kvmgetvcpu. If the index is "bad", the nospec clamping will generate '0', i.e. KVM will...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: Explicitly verify that the target vCPU is online in kvmgetvcpu It is necessary to explicitly verify that the target vCPU is fully online prior to clamping the index in kvmgetvcpu. If the index is “bad”, the nospec clamping...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: NFSv4.0: Fix a use-after-free problem in the asynchronous open CVE-2024-53173 In the Linux kernel, the following vulnerability has been resolved: KVM: Explicitly verify target vCPU is online in kvmgetvcpu...

KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()

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Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from not verifying that the target vCPU is online, which could result in access to freed memory...