CVE-2022-50667 drm/vmwgfx: Fix memory leak in vmw_mksstat_add_ioctl()
A memory leak in the vmwgfx driver allows local attackers to exhaust kernel memory, potentially causing a 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-2022-50667?
CVE-2022-50667 is a memory corruption vulnerability in Linux, published on 9 Dec 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/vmwgfx: Fix memory leak in vmw_mksstat_add_ioctl()
If the copy of the description string from userspace fails, then the page for the instance descriptor doesn't get freed before returning -EFAULT, which leads to a memleak.
Which versions are affected by CVE-2022-50667?
How do I fix CVE-2022-50667?
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-2022-50667 being exploited?
There is no known exploitation of CVE-2022-50667 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50667, GHSA-m79x-vc6m-3cgv, UBUNTU-CVE-2022-50667.