CVE-2023-53571 drm/i915: Make intel_get_crtc_new_encoder() less oopsy

Medium 5.5 Published Updated

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.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2023-53571, DEBIAN-CVE-2023-53571, GHSA-r37f-5648-cmg6, UBUNTU-CVE-2023-53571.

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