CVE-2023-53571 drm/i915: Make intel_get_crtc_new_encoder() less oopsy
A null pointer dereference in the Intel i915 graphics driver can cause a kernel crash, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53571?
CVE-2023-53571 is a medium-severity vulnerability in Linux kernel, published on 4 Oct 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/i915: Make intel_get_crtc_new_encoder() less oopsy
The point of the WARN was to print something, not oops straight up. Currently that is precisely what happens if we can't find the connector for the crtc in the atomic state. Get the dev pointer from the atomic state instead of the potentially NULL encoder to avoid that.
(cherry picked from commit 3b6692357f70498f617ea1b31a0378070a0acf1c)
Which versions are affected by CVE-2023-53571?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53571?
Apply the vendor's patch.
Is CVE-2023-53571 being exploited?
There is no known exploitation of CVE-2023-53571 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53571, DEBIAN-CVE-2023-53571, GHSA-r37f-5648-cmg6, UBUNTU-CVE-2023-53571.