PT-2026-61166 · Linux · Linux

CVE-2026-63849 · Published 2026-07-19 · Updated 2026-07-19

Mitre

CVSS v3.1

7.8

High

Base vector

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

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/vcn: set no user fence for VCN v5.0.1 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 e16be95a2c3ee712b142cb27d2dca0b461181359)

Fix

Related Identifiers

CVE-2026-63849

Affected Products

Linux

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-63849 · Security Note
• https://git.kernel.org/stable/c/081ef0e46c9cdd26c0db0ef721470393d36b6655 · Note
• https://git.kernel.org/stable/c/5a4bffd67e94944ed3db26a959346cfb7fabaecd · Note
• https://git.kernel.org/stable/c/8f4954722eab88e10c4ea0c0d3b1269c31421d3a · Note