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CVE-2026-63850

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 v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

A flaw was found in the Linux kernel's AMDGPU Video Core Next (VCN) component. The VCN encoder and decoder rings, specifically version 5.0.0, do not correctly support 64-bit user fence writes. This can lead to a denial of service, as the kernel will reject command submissions that attempt to use these unsupported user fences, preventing affected applications from utilizing the VCN functionality as intended.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelOut of support scope
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 9kernelFix deferred
Red Hat Enterprise Linux 9kernel-rtFix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-1287
https://bugzilla.redhat.com/show_bug.cgi?id=2502296kernel: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 enc ring

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.8
ubuntu
15 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

CVSS3: 7.8
nvd
15 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

CVSS3: 7.8
debian
15 дней назад

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

CVSS3: 7.8
github
15 дней назад

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

5.5 Medium

CVSS3