CVE-2022-49829 drm/scheduler: fix fence ref counting
A memory leak in the Linux kernel DRM scheduler allows attackers to cause denial of service by triggering fence reference counting errors.
- 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-2022-49829?
CVE-2022-49829 is a medium-severity memory corruption 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/scheduler: fix fence ref counting
We leaked dependency fences when processes were beeing killed.
Additional to that grab a reference to the last scheduled fence.
Which versions are affected by CVE-2022-49829?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49829?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-49829 being exploited?
There is no known exploitation of CVE-2022-49829 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-69914, DEBIAN-CVE-2022-49829, GHSA-g46r-j95v-9f3q, ROOT-OS-DEBIAN-11-CVE-2022-49829, ROOT-OS-UBUNTU-2204-CVE-2022-49829, UBUNTU-CVE-2022-49829.