CVE-2026-63842 drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring
High 7.8
Published
Updated
Check this codebase for CVE-2026-63842 and fix it if it is affected.
What it is: CVE-2026-63842 is a high-severity vulnerability in Linux kernel, published on 19 Jul 2026.
Exploitation: There is no known exploitation of CVE-2026-63842 in the wild and no public exploit code.
Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-63842/ (Markdown: https://insights.sbomify.com/CVE-2026-63842/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-63842?
CVE-2026-63842 is a high-severity vulnerability in Linux kernel, published on 19 Jul 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring
JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences.
(cherry picked from commit 0f43893d3cd478fa57836697525b338817c9c23d)
Which versions are affected by CVE-2026-63842?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-63842?
Upgrade to a fixed version.
Is CVE-2026-63842 being exploited?
There is no known exploitation of CVE-2026-63842 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-63842, DEBIAN-CVE-2026-63842, GHSA-8794-5r5m-g546, UBUNTU-CVE-2026-63842.