---
id: CVE-2025-71189
title: |-
  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…
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: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.19.1, < 6.1.162'
  - 'linux_kernel >= 6.2, < 6.6.122'
  - 'linux_kernel >= 6.7, < 6.12.67'
  - 'linux_kernel >= 6.13, < 6.18.7'
  - linux_kernel = 5.19
  - linux_kernel = 6.19
patched:
  - linux_kernel 6.18.7
published: '2026-01-31'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:24.500'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71189'
references:
  - url: 'https://git.kernel.org/stable/c/6b87288581a0fcbe54b39da5c10e1aee2df8776e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8f7a391211381ed2f6802032c78c7820d166bc49'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/eabe40f8a53c29f531e92778ea243e379f4f7978'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ec25e60f9f95464aa11411db31d0906b3fb7b9f2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-019113.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-253495.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-457936.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00205
epssPercentile: 0.10377
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_kernel >= 5.19.1, < 6.1.162`
- `linux_kernel >= 6.2, < 6.6.122`
- `linux_kernel >= 6.7, < 6.12.67`
- `linux_kernel >= 6.13, < 6.18.7`
- `linux_kernel = 5.19`
- `linux_kernel = 6.19`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.18.7`