CVE-2026-31784 drm/xe/pxp: Clear restart flag in pxp_start after jumping back
A missing flag reset in the Linux kernel's Intel Xe PXP driver causes an infinite loop, leading to 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-2026-31784?
CVE-2026-31784 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 May 2026. 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/xe/pxp: Clear restart flag in pxp_start after jumping back
If we don't clear the flag we'll keep jumping back at the beginning of the function once we reach the end.
(cherry picked from commit 0850ec7bb2459602351639dccf7a68a03c9d1ee0)
Which versions are affected by CVE-2026-31784?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-31784?
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-2026-31784 being exploited?
There is no known exploitation of CVE-2026-31784 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-31784, DEBIAN-CVE-2026-31784, GHSA-hvcp-6xqw-p6hw, UBUNTU-CVE-2026-31784.