---
id: CVE-2025-71191
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dmaengine: at_hdmac: fix device leak on of_dma_xlate()

  Make sure to drop the reference taken when looking up the DMA platform
  device during of_dma_xlate() when releasi…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dmaengine: at_hdmac: fix device leak on of_dma_xlate()

  Make sure to drop the reference taken when looking up the DMA platform
  device during of_dma_xlate() when releasi…
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'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.10.1, < 5.10.249'
  - 'linux_kernel >= 5.11, < 5.15.199'
  - 'linux_kernel >= 5.16, < 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 = 3.10
  - linux_kernel = 6.19
patched:
  - linux_kernel 6.18.7
published: '2026-01-31'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:24.863'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71191'
references:
  - url: 'https://git.kernel.org/stable/c/48b2d7f530b83cb149dbf0e48f95ccadb2d90da9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/49d964cde422dc66fea514b7ab24aa729df7081d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4c67b4f45c8540ee4e62e24ca4608c6a9a81ee0f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6a86cf2c09e149d5718a5b7090545f7566da9334'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/987c71671367f42460689b78244d7b894c50999a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b9074b2d7a230b6e28caa23165e9d8bc0677d333'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f3c23b7e941349505c3d40de2cc0acd93d9ac057'
    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: 0.00215
epssPercentile: 0.11858
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

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

dmaengine: at_hdmac: fix device leak on of_dma_xlate()

Make sure to drop the reference taken when looking up the DMA platform
device during of_dma_xlate() when releasing channel resources.

Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing
put_device() call in at_dma_xlate()") fixed the leak in a couple of
error paths but the reference is still leaking on successful allocation.

## Affected

- `linux_kernel >= 3.10.1, < 5.10.249`
- `linux_kernel >= 5.11, < 5.15.199`
- `linux_kernel >= 5.16, < 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 = 3.10`
- `linux_kernel = 6.19`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.18.7`