CVE-2026-63850

high

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

References

https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc

https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb

https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934

https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb

Details

Source: Mitre, NVD

Published: 2026-07-19

Updated: 2026-07-20

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00168