CVE-2026-63849 | 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/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)

Metadata

CVE ID: CVE-2026-63849
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	—	346492f30ce3581bf5324c4ae417eab8537dc998 < 081ef0e46c9cdd26c0db0ef721470393d36b6655, 346492f30ce3581bf5324c4ae417eab8537dc998 < 5a4bffd67e94944ed3db26a959346cfb7fabaecd, 346492f30ce3581bf5324c4ae417eab8537dc998 < 8f4954722eab88e10c4ea0c0d3b1269c31421d3a
Linux	Linux	—	6.14, 0 < 6.14, 6.18.33 ≤ 6.18., 7.0.10 ≤ 7.0. …

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 (3)