CVE-2025-71191
BaseFortify
Publication date: 2026-01-31
Last updated on: 2026-03-25
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| 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 ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
What immediate steps should I take to mitigate this vulnerability?
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.