CVE-2026-64288
kernel: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 25, 2026
Updated · August 14, 2026
Description
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 pointer dereference, which could cause the system to crash, resulting in a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference