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CVE-2026-63853

Опубликовано: 19 июл. 2026
Источник: redhat
CVSS3: 5.5

Описание

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)

A flaw was found in the Linux kernel's AMD GPU Video Core Next (VCN) driver. This vulnerability arises because the VCN encoder and decoder rings, responsible for video processing, do not support 64-bit user fence writes. An attacker could exploit this by submitting command requests that include these unsupported user fences. This would result in the system rejecting the submissions, potentially leading to a denial of service for specific video processing functionalities.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

Статус:

Low
Дефект:
CWE-1287
https://bugzilla.redhat.com/show_bug.cgi?id=2502293kernel: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.8
ubuntu
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)

CVSS3: 7.8
nvd
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)

msrc
13 дней назад

drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring

CVSS3: 7.8
debian
13 дней назад

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

CVSS3: 7.8
github
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)

5.5 Medium

CVSS3