SEPTEMBER 8, 2026
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Case File

CVE-2026-63844

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 AMD GPU driver, specifically in the handling of JPEG ring submissions, which do not properly support 64-bit user fence writes. This flaw can lead to denial of service or potential privilege escalation, making it critical for users operating systems with AMD GPUs to prioritize patching. Organizations relying on Linux systems with affected GPU configurations should address this vulnerability promptly to mitigate associated risks.

CVE
CVE-2026-63844
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 v4.0.3 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927)