Linux Kernel Vulnerability in AMDXDNA Command Chain Processing

CVE-2026-98145

What is CVE-2026-98145?

This vulnerability in the Linux kernel related to AMD's command processing allows for exploitation through submission of requests with zero-length command chains. The flaw arises when the payload passes initial validation but leads to a fault on the virtual memory guard page due to improper handling of the requests. When a command chain with no commands is submitted, it inadvertently leads to a read of an invalid memory location, resulting in potential instability and security risks. This necessitates the implementation of proper request rejection mechanisms to prevent unauthorized access and exploitation.

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