CVE-2026-89773: drm/amd/display: Skip Update HDCP Config In Transition State
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Skip Update HDCP Config In Transition State
Transition state does not have a valid dmstreamctx that should skip configuring HDCP routine. The routine is valid to go through only when a valid stream is created.
Affected Software
Event History
Frequently Asked Questions
Which systems are exposed to this issue?
Systems using the Linux kernel AMD display driver are relevant when the display pipeline enters a transition state and an HDCP configuration update is attempted. The issue concerns transition states that lack a valid dm_stream_ctx.
What condition is required to trigger the problem?
The HDCP configuration routine must run while the display is in a transition state without a valid stream context. The routine should only proceed after a valid stream has been created.
What mitigation is available if an updated kernel cannot be deployed immediately?
The provided information does not identify a configuration workaround. The upstream fix changes the AMD display driver to skip HDCP configuration updates during transition states.