Linux Kernel Vulnerability in AMD Display Configuration

CVE-2026-89773

What is CVE-2026-89773?

A vulnerability exists in the Linux kernel where the HDCP configuration routine may be invoked in an invalid transition state. This occurs because the transition state lacks a valid dm_stream_ctx, leading to potential improper management of HDCP configuration. The issue emphasizes the importance of ensuring that valid streams are established before proceeding with HDCP routines, thereby avoiding misconfigurations that could affect secure content transmission.

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