Review reviewHigh

CVE-2026-63845

Linux

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 8d0cac9478a3f046279c657d6a2545de49ae675a)

CVSS: 7.8
EPSS: -
CISA KEV: Not listed
Published: 2026.07.20

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux
Affected versions: >= b13111de32a9202c6d58bb7e4c06296b99c4d7e3 < d4e0172a1b614373385e9b7111b580f8d2e0b98f, >= b13111de32a9202c6d58bb7e4c06296b99c4d7e3 < a676f16ea9a7df96d69f405afb6eb349571b3382, >= b13111de32a9202c6d58bb7e4c06296b99c4d7e3 < 6876d05b899102f4dfdb9ad560132126144c1c72, >= b13111de32a9202c6d58bb7e4c06296b99c4d7e3 < af4b458daa597dae707bf3f1f74745f5fc133ca2, >= b13111de32a9202c6d58bb7e4c06296b99c4d7e3 < e7e90b5839aeb8805ec83bb4da610b8dab8e184d, >= 5.19
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: Not available