CVE-2025-71189: dmaengine: dw: dmamux: fix OF node leak on route allocation failure
Published Jan 31, 2026
·Updated
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 Software
13 affected components
Linux Linux kernel>=5.19.1<6.1.162
Linux Linux kernel>=6.2<6.6.122
Linux Linux kernel>=6.7<6.12.67
Linux Linux kernel>=6.13<6.18.7
Linux Linux kernel=5.19
Linux Linux kernel=6.19-rc1
Linux Linux kernel=6.19-rc2
Linux Linux kernel=6.19-rc3
Linux Linux kernel=6.19-rc4
Linux Linux kernel=6.19-rc5
Linux Linux kernel=6.19-rc6
Linux Linux kernel=6.19-rc7
Linux Linux kernel=6.19-rc8
Event History
Jan 31, 2026
CVE Published
via MITRE·11:42 AM
Data Sourced
via MITRE·11:42 AM
Description
Data Sourced
via NVD·12:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The CVSS vector indicates local access and low privileges are required. No user interaction is required.
2
What is the practical impact if exploitation succeeds?
The listed impact is high availability impact, with no confidentiality or integrity impact. The issue is an OF node reference leak when late DMA route allocation fails.