CVE-2026-63847 drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring
A missing check in the AMD GPU JPEG driver allows invalid user fence submissions, potentially causing system instability or crashes.
- 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-2026-63847?
CVE-2026-63847 is a high-severity vulnerability in Linux kernel, published on 19 Jul 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/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring
JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences.
(cherry picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587)
Which versions are affected by CVE-2026-63847?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-63847?
Apply the vendor's patch.
Is CVE-2026-63847 being exploited?
There is no known exploitation of CVE-2026-63847 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-63847, DEBIAN-CVE-2026-63847, GHSA-398f-rxhj-v666, ROOT-OS-DEBIAN-11-CVE-2026-63847, ROOT-OS-DEBIAN-12-CVE-2026-63847, ROOT-OS-UBUNTU-2204-CVE-2026-63847 and 1 more.