---
id: CVE-2026-93139
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC

  The loop iterated only AMDGPU_MAX_MES_PIPES times, leaving entries
  uninitialized for multi-XCC GPUs
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC

  The loop iterated only AMDGPU_MAX_MES_PIPES times, leaving entries
  uninitialized for multi-XCC GPUs. T…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a132fc9bc2f8b394a2f75947a0e1f5c22482a94c <
    7ff668cfc3960ed5b944ac35129f18a15ea08b74
  - >-
    Linux >= a132fc9bc2f8b394a2f75947a0e1f5c22482a94c <
    2c256086a363f01f9840a57949506eccf5c990a6
  - Linux 7.2
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:08.863'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93139'
references:
  - url: 'https://git.kernel.org/stable/c/2c256086a363f01f9840a57949506eccf5c990a6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7ff668cfc3960ed5b944ac35129f18a15ea08b74'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.747Z'
epss: 0.00198
epssPercentile: 0.08489
---

## Overview

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

drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC

The loop iterated only AMDGPU_MAX_MES_PIPES times, leaving entries
uninitialized for multi-XCC GPUs. This causes null pointer dereferences
when accessing arrays indexed by XCC ID >= 2. Extend the loop to cover
all XCCs (AMDGPU_MAX_MES_PIPES * num_xcc), matching other per-XCC
arrays.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.