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CVE-2026-63843

drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring

HIGH
7.8
CVSS Score
Published: July 19, 2026 at 02:04 PM UTC
Updated: October 22, 2026 at 06:57 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit f05d0a4f21fc720116d6e238f23308b199891058)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.13 ≤ v < 6.18.336.19 ≤ v < 7.0.106.7 ≤ v < 6.12.916.77.18f98a715da8e906cff5c635f9eb5399b84751557
Vendor states this is fixed in 424510b60d4698a75a6ff71acdd88b528f0f39af (fixed)
Vendor states this is fixed in b65b7f3f3c18f797f81a2af7c97e2079900ad6db (fixed)
Vendor states this is fixed in f26e3f7186cd6ecc93e6af102744d64c798dea7e (fixed)
Vendor states this is fixed in f9bc5633b761cff200c428f61ed0df6212b1c721 (fixed)
Vendor states this is fixed in 6.12.91 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (4)

Patch
Source: cverecord
https://git.kernel.org/stable/c/424510b60d4698a75a6ff71acdd88b528f0f39af
Patch
Source: cverecord
https://git.kernel.org/stable/c/f26e3f7186cd6ecc93e6af102744d64c798dea7e
Patch
Source: cverecord
https://git.kernel.org/stable/c/f9bc5633b761cff200c428f61ed0df6212b1c721
Patch
Source: cverecord
https://git.kernel.org/stable/c/b65b7f3f3c18f797f81a2af7c97e2079900ad6db

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20CWE-754

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