CVE-2026-23425
Description
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.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory; Read Application Data
When reusing a resource such as memory or a program variable, the original contents of that resource may not be cleared before it is sent to an untrusted party.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend.
Frequently Asked Questions
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