CVE-2026-46014

A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) and Secure Virtual Machine (SVM) components. This vulnerability is due to missing save and restore handling for Last Branch Record (LBR) Model Specific Registers (MSRs) and MSR_IA32_DEBUGCTLMSR. A local attacker with access to a virtual machine could potentially exploit this to cause incorrect state restoration of LBRs in nested virtualization environments. This could lead to unexpected behavior or information inconsistencies across virtual machines.

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.