CVE-2024-46779 drm/imagination: Free pvr_vm_gpuva after unlink
A memory leak in the Imagination DRM driver allows attackers to exhaust system memory via high-frequency GPU memory operations, causing 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-2024-46779?
CVE-2024-46779 is a medium-severity denial of service vulnerability in Linux kernel, published on 18 Sep 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/imagination: Free pvr_vm_gpuva after unlink
This caused a measurable memory leak. Although the individual allocations are small, the leaks occurs in a high-usage codepath (remapping or unmapping device memory) so they add up quickly.
Weakness: CWE-401
Which versions are affected by CVE-2024-46779?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46779?
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-2024-46779 being exploited?
There is no known exploitation of CVE-2024-46779 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-46779, DEBIAN-CVE-2024-46779, GHSA-632r-423p-9jx4, UBUNTU-CVE-2024-46779.