CVE-2025-71191
Modified Modified - Updated After Analysis
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: 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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-01-31
Last Modified
2026-06-02
Generated
2026-06-16
AI Q&A
2026-01-31
EPSS Evaluated
2026-06-14
NVD
CVE-2025-71191
Affected Vendors & Products
Showing 15 associated CPEs
Vendor Product Version / Range
linux linux_kernel 3.10
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 5.11 (inc) to 5.15.199 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.162 (exc)
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 3.10.1 (inc) to 5.10.249 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a device reference leak in the Linux kernel's dmaengine at_hdmac driver. Specifically, during the of_dma_xlate() function, a reference to the DMA platform device is taken but not properly released when channel resources are freed. Although a previous fix addressed some error paths, the reference leak still occurs on successful allocation, potentially causing resource management issues.

Impact Analysis

The vulnerability can lead to a device reference leak in the Linux kernel, which may cause resource exhaustion or instability in systems using the affected dmaengine at_hdmac driver. Over time, this could degrade system performance or cause unexpected behavior due to unreleased device references.

Mitigation Strategies

Apply the Linux kernel update that includes the fix for the dmaengine at_hdmac device leak in of_dma_xlate(). This involves ensuring your kernel version includes the commit 3832b78b3ec2 or later, which adds the missing put_device() call to prevent the device reference leak.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-71191. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart