CVE-2022-49233 drm/amd/display: Call dc_stream_release for remove link enc assignment

Medium 5.5 Published Updated

A memory leak in the Linux kernel's AMD display driver can lead to resource exhaustion and 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-2022-49233?

CVE-2022-49233 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 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/amd/display: Call dc_stream_release for remove link enc assignment

[Why] A porting error resulted in the stream assignment for the link being retained without being released - a memory leak.

[How] Fix the porting error by adding back the dc_stream_release() intended as part of the original patch.

Weakness: CWE-401

Which versions are affected by CVE-2022-49233?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49233?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-49233 being exploited?

There is no known exploitation of CVE-2022-49233 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49233, GHSA-8rxq-4q2f-m8fj, UBUNTU-CVE-2022-49233.

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