CVE-2024-26916 Revert "drm/amd: flush any delayed gfxoff on suspend entry"
A regression in the Linux kernel AMD GPU driver causes a system deadlock during suspend when SDMA traffic is triggered, 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-2024-26916?
CVE-2024-26916 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 Apr 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:
Revert "drm/amd: flush any delayed gfxoff on suspend entry"
commit ab4750332dbe ("drm/amdgpu/sdma5.2: add begin/end_use ring callbacks") caused GFXOFF control to be used more heavily and the codepath that was removed from commit 0dee72639533 ("drm/amd: flush any delayed gfxoff on suspend entry") now can be exercised at suspend again.
Users report that by using GNOME to suspend the lockscreen trigger will cause SDMA traffic and the system can deadlock.
This reverts commit 0dee726395333fea833eaaf838bc80962df886c8.
Weakness: CWE-667
Which versions are affected by CVE-2024-26916?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-26916?
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-2024-26916 being exploited?
There is no known exploitation of CVE-2024-26916 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-26916, DEBIAN-CVE-2024-26916, GHSA-5xq3-rmw6-5p48, UBUNTU-CVE-2024-26916.