Linux Kernel Vulnerability in IPA Hardware Support

CVE-2026-43081

What is CVE-2026-43081?

A vulnerability in the Linux kernel affecting the IPA (Integrity Protection Architecture) hardware has been identified. The issue pertains to misconfigured field masks for the GENERIC_CMD register, specifically for the IPA version 5.0 and above. This misconfiguration may lead to warnings during communication with the MPSS remote processor when attempting to execute commands while the IPA remains active. The resolution aligns the field masks with the documented hardware layout, thereby ensuring proper functionality and prevention of potential operational anomalies.

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