CVE-2023-54263 drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP
A missing lock initialization in the nouveau driver causes a kernel OOPS on systems with ANX9805 DP encoders, leading to denial of service.
- 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-2023-54263?
CVE-2023-54263 is a vulnerability in Linux, published on 30 Dec 2025. 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/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP
Fixes OOPS on boards with ANX9805 DP encoders.
Which versions are affected by CVE-2023-54263?
How do I fix CVE-2023-54263?
Apply the vendor's patch.
Is CVE-2023-54263 being exploited?
There is no known exploitation of CVE-2023-54263 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54263, DEBIAN-CVE-2023-54263, GHSA-7v8c-h9vh-3q7f, ROOT-OS-DEBIAN-11-CVE-2023-54263, ROOT-OS-DEBIAN-12-CVE-2023-54263, ROOT-OS-UBUNTU-2204-CVE-2023-54263 and 1 more.