SEPTEMBER 8, 2026
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Case File

CVE-2026-63842

HIGH · CVSS 7.8 EPSS 0.13%

Source: NVD + CISA KEV + EPSS · Published 2026-07-19 · Last synced 2026-08-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's handling of JPEG rings in the AMD GPU driver, specifically related to the improper support for 64-bit user fence writes, which can lead to denial of service through rejected command submissions. This flaw poses a high risk as it can disrupt system stability and performance. Organizations using affected Linux distributions with AMD GPUs should prioritize applying the necessary patches to mitigate potential exploitation.

CVE
CVE-2026-63842
Severity
HIGH
CVSS
7.8
EPSS
0.13%
Linux

Original NVD 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)