CVE-2026-89773 drm/amd/display: Skip Update HDCP Config In Transition State
A null pointer dereference in the AMD display driver can cause a system crash when HDCP configuration is attempted during a transition state.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-89773?
CVE-2026-89773 is a vulnerability in Linux, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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 dm_stream_ctx that should skip configuring HDCP routine. The routine is valid to go through only when a valid stream is created.
Which versions are affected by CVE-2026-89773?
How do I fix CVE-2026-89773?
Apply the vendor's patch.
Is CVE-2026-89773 being exploited?
There is no known exploitation of CVE-2026-89773 in the wild and no public exploit code.
Sources
Also known as AZL-100121, DEBIAN-CVE-2026-89773, GHSA-q359-2px2-4w7m, UBUNTU-CVE-2026-89773.