CVE-2025-37763 drm/imagination: take paired job reference
A use-after-free vulnerability in the Linux kernel's Imagination DRM driver allows attackers to cause denial of service or potentially execute code.
- 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-2025-37763?
CVE-2025-37763 is a high-severity use after free vulnerability in Linux kernel, published on 1 May 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/imagination: take paired job reference
For paired jobs, have the fragment job take a reference on the geometry job, so that the geometry job cannot be freed until the fragment job has finished with it.
The geometry job structure is accessed when the fragment job is being prepared by the GPU scheduler. Taking the reference prevents the geometry job being freed until the fragment job no longer requires it.
Fixes a use after free bug detected by KASAN:
[ 124.256386] BUG: KASAN: slab-use-after-free in pvr_queue_prepare_job+0x108/0x868 [powervr] [ 124.264893] Read of size 1 at addr ffff0000084cb960 by task kworker/u16:4/63
Weakness: CWE-416
Which versions are affected by CVE-2025-37763?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-37763?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-37763 being exploited?
There is no known exploitation of CVE-2025-37763 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-37763, DEBIAN-CVE-2025-37763, GHSA-95vc-3fw2-mxm8, ROOT-OS-UBUNTU-2404-CVE-2025-37763, UBUNTU-CVE-2025-37763.