CVE-2026-63852CWE-20

CVE-2026-63852

High · published July 19, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
6.6
In the wild
Unconfirmed
What it is

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

drm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 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 ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00175 · 6.6th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-07-19T19:16Z
References (5)
https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7f · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512a · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c12a5d35033c0640c57c10d7111c010c7b9c2c8e · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 19 JUL 14:04Z
    drm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 enc ring
    cvelistv5