CVE-2026-63855

EUVD-2026-45539
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings

VCN encoder and decoder rings do not support 64-bit user fence writes,
reject CS submissions with user fences.

(cherry picked from commit efc9dd5590894109bce9a0bfe1fa5592dd6b20b1)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
7.1.3-1
fixed
sid
7.1.4-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.95-1
fixed
References
https://git.kernel.org/stable/c/2c6fb056567efb49f8674108b86088a1cfaa86d0
https://git.kernel.org/stable/c/4f317863a3ab212a027d8c8c3cc3af4e3fb95704
https://git.kernel.org/stable/c/5a3c6f76cab164a5d803084908d7050f649ab7f9
https://git.kernel.org/stable/c/602d4c5872b25ddd4d82fb2025efb9a05b187bb3
https://git.kernel.org/stable/c/8f0ea4524dc71c6c9ec97f2711f46e12f624140f