CVE-2024-50004 drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35
A mismatch in the AMD display driver policy causes bandwidth validation failures, leading to grey screens and system hangs.
- 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-2024-50004?
CVE-2024-50004 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 Oct 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: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35
[WHY & HOW] Mismatch in DCN35 DML2 cause bw validation failed to acquire unexpected DPP pipe to cause grey screen and system hang. Remove EnhancedPrefetchScheduleAccelerationFinal value override to match HW spec.
(cherry picked from commit 9dad21f910fcea2bdcff4af46159101d7f9cd8ba)
Which versions are affected by CVE-2024-50004?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50004?
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-2024-50004 being exploited?
There is no known exploitation of CVE-2024-50004 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-52311, AZL-52320, BELL-CVE-2024-50004, DEBIAN-CVE-2024-50004, GHSA-cp4c-qw43-fgxp, ROOT-OS-UBUNTU-2204-CVE-2024-50004 and 2 more.