CVE-2026-31441
Received Received - Intake
Memory Leak in Linux Kernel dmaengine idxd Workqueue Reset

Publication date: 2026-04-22

Last updated on: 2026-04-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix memory leak when a wq is reset idxd_wq_disable_cleanup() which is called from the reset path for a workqueue, sets the wq type to NONE, which for other parts of the driver mean that the wq is empty (all its resources were released). Only set the wq type to NONE after its resources are released.
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Meta Information
Published
2026-04-22
Last Modified
2026-04-22
Generated
2026-05-07
AI Q&A
2026-04-22
EPSS Evaluated
2026-05-05
NVD
CVE-2026-31441
EUVD
EUVD-2026-24771
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a memory leak issue in the Linux kernel's dmaengine idxd driver. Specifically, when a workqueue (wq) is reset, the function idxd_wq_disable_cleanup() sets the workqueue type to NONE before releasing its resources. This causes the driver to incorrectly assume the workqueue is empty and that all resources have been released, leading to a memory leak.


How can this vulnerability impact me? :

The memory leak caused by this vulnerability can lead to inefficient use of system memory over time. This may degrade system performance or cause instability if the leaked memory accumulates significantly, especially in systems relying heavily on the dmaengine idxd driver.


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