CVE-2026-63840 | In the Linux kernel, the following vulnerability has been re… | CVSS 7.8 HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 86ac011ae234c03fb872f4945913391ea1d8862e)

Metadata

CVE ID: CVE-2026-63840
State: PUBLISHED
Assigner: Linux
Reserved: 2026-07-19 07:54 UTC
Published: 2026-07-19 14:04 UTC
Last updated: 2026-07-20 13:40 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

7.8 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 46ad73aec27d020f103b4262e4da2d2c22f54799, 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 3b0ea2021351b6b813b34fac940957f1f4fad85b
Linux	Linux	—	7.0, 0 < 7.0, 7.0.10 ≤ 7.0., 7.1 ≤

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.8	HIGH	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References (2)