CVE-2026-23425

A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) for ARM64 architectures. This vulnerability arises from improper initialization of ID registers for non-protected pKVM (protected KVM) guests. A malicious guest operating system could exploit this by causing the hypervisor, the software that manages virtual machines, to fail in saving and restoring critical system registers during virtual machine context switches. This could lead to state corruption within the virtual machine, potentially affecting its stability and integrity.