CVE-2026-100077 drm/msm: Recover HW before retire hung submit
A use-after-free in the Linux kernel MSM GPU driver allows attackers to cause page faults or potential code execution by triggering a hung submit recovery.
- 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-2026-100077?
CVE-2026-100077 is a medium-severity use after free vulnerability in Linux kernel, published on 25 Sep 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/msm: Recover HW before retire hung submit
During recovery, it is not safe to retire the hung submit before we recover the GPU. Retiring the submit triggers BO free and that can result in GPU pagefaults since the GPU may be actively accessing those BOs.
To fix this, retire the submits after gpu recovery is complete in recover_worker().
Patchwork: https://patchwork.freedesktop.org/patch/730655/
Weakness: CWE-416
Which versions are affected by CVE-2026-100077?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-100077?
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-2026-100077 being exploited?
There is no known exploitation of CVE-2026-100077 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-104784, BELL-CVE-2026-100077, DEBIAN-CVE-2026-100077, GHSA-2x44-7964-7g45, UBUNTU-CVE-2026-100077.