CVE-2023-52671 drm/amd/display: Fix hang/underflow when transitioning to ODM4:1
A flaw in the Linux kernel's AMD display driver can cause a system hang or underflow when transitioning display configurations, 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-2023-52671?
CVE-2023-52671 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 May 2024. 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: Fix hang/underflow when transitioning to ODM4:1
[Why] Under some circumstances, disabling an OPTC and attempting to reclaim its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs not being properly disconnected from the disabled OPTC.
[How] Ensure that all OPPs are unassigned from an OPTC when it gets disabled.
Which versions are affected by CVE-2023-52671?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52671?
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-2023-52671 being exploited?
There is no known exploitation of CVE-2023-52671 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-67728, BELL-CVE-2023-52671, DEBIAN-CVE-2023-52671, GHSA-7cmv-p5w7-7vqq, ROOT-OS-DEBIAN-11-CVE-2023-52671, ROOT-OS-DEBIAN-12-CVE-2023-52671 and 2 more.