BaseFortify

Publication date: 2026-01-31

Last updated on: 2026-06-02

Assigner: kernel.org

Description

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.

CVSS Scores

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Meta Information

Published

2026-01-31

Last Modified

2026-06-02

Generated

2026-07-06

AI Q&A

2026-01-31

EPSS Evaluated

2026-07-05

NVD

CVE-2025-71189

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	5.19
linux	linux_kernel	From 6.13 (inc) to 6.18.7 (exc)
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	From 6.2 (inc) to 6.6.122 (exc)
linux	linux_kernel	From 6.7 (inc) to 6.12.67 (exc)
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	From 5.19.1 (inc) to 6.1.162 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-401	The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Attack-Flow Graph

Executive Summary

This vulnerability is related to the Linux kernel's dmaengine component, specifically the dw dmamux driver. It involves a resource leak where the reference to the DMA master device tree node (OF node) is not properly released when a route allocation fails late in the process. The fix ensures that this reference is dropped correctly to prevent the leak.

Impact Analysis

The impact of this vulnerability is a resource leak in the Linux kernel's DMA engine subsystem. This could potentially lead to increased memory usage or resource exhaustion over time if route allocation failures occur frequently, possibly affecting system stability or performance.

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