---
id: CVE-2025-71189
title: 'dmaengine: dw: dmamux: fix OF node leak on route allocation failure'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dmaengine: dw: dmamux: fix OF node leak on route allocation failure

  Make sure to drop the reference taken to the DMA master OF node also on
  late route allocation failu…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 <
    6b87288581a0fcbe54b39da5c10e1aee2df8776e
  - >-
    Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 <
    db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1
  - >-
    Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 <
    8f7a391211381ed2f6802032c78c7820d166bc49
  - >-
    Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 <
    eabe40f8a53c29f531e92778ea243e379f4f7978
  - >-
    Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 <
    ec25e60f9f95464aa11411db31d0906b3fb7b9f2
  - Linux 5.19
published: '2026-01-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T08:44:10.281Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-71189'
references:
  - url: 'https://git.kernel.org/stable/c/6b87288581a0fcbe54b39da5c10e1aee2df8776e'
  - url: 'https://git.kernel.org/stable/c/db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1'
  - url: 'https://git.kernel.org/stable/c/8f7a391211381ed2f6802032c78c7820d166bc49'
  - url: 'https://git.kernel.org/stable/c/eabe40f8a53c29f531e92778ea243e379f4f7978'
  - url: 'https://git.kernel.org/stable/c/ec25e60f9f95464aa11411db31d0906b3fb7b9f2'
tags:
  - cve.org
epss: 0.00195
epssPercentile: 0.08084
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

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

dmaengine: dw: dmamux: fix OF node leak on route allocation failure

Make sure to drop the reference taken to the DMA master OF node also on
late route allocation failures.

## Affected

- `Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 < 6b87288581a0fcbe54b39da5c10e1aee2df8776e`
- `Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 < db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1`
- `Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 < 8f7a391211381ed2f6802032c78c7820d166bc49`
- `Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 < eabe40f8a53c29f531e92778ea243e379f4f7978`
- `Linux >= 134d9c52fca26d2d199516e915da00f0cc6adc73 < ec25e60f9f95464aa11411db31d0906b3fb7b9f2`
- `Linux 5.19`

## Remediation

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