---
id: CVE-2026-98779
title: 'kernel: drm/amdgpu: fix ACP MFD device leak on init failure (CVE-2026-98779)'
summary: >-
  A flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. During Audio
  CoProcessor (ACP) hardware initialization, child multi-function devices are
  not properly released if a power domain attachment fails or a hardware reset
  times out…
severity: low
cvss: 1.9
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L'
cvssSource: vendor
cwe: CWE-772
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T11:19:22+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98779'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555062'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98779'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98779'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98779.mbox
  - url: 'https://git.kernel.org/stable/c/d700c26ed64bd3c26e4aa7679b9d5f3333c3747a'
  - url: 'https://git.kernel.org/stable/c/2b9a53940a2bc063ea4cd09ee49220a503a0170c'
  - url: 'https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113'
  - url: 'https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc'
  - url: 'https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00168
epssPercentile: 0.05975
ingestedAt: '2026-10-18T16:47:32.490Z'
---

## Overview

A flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. During Audio CoProcessor (ACP) hardware initialization, child multi-function devices are not properly released if a power domain attachment fails or a hardware reset times out. This issue causes an internal resource leak, which may lead to system instability or a Denial of Service (DoS).

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json)

**kernel: drm/amdgpu: fix ACP MFD device leak on init failure** — rated Low by Red Hat. Released 2026-10-18, updated 2026-10-23.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

Not affected:

- Red Hat Enterprise Linux 7

## Remediation

Out of support scope