CVE-2025-40344
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Disable periods-elapsed work when closing PCM avs_dai_fe_shutdown() handles the shutdown procedure for HOST HDAudio stream while period-elapsed work services its IRQs. As the former frees the DAI's private context, these two operations shall be synchronized to avoid slab-use-after-free or worse errors.

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Meta Information

Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-07-06
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-05
NVD
CVE-2025-40344
EUVD
EUVD-2025-201858

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves a synchronization issue in the Linux kernel's Intel ASoC avs driver. Specifically, the avs_dai_fe_shutdown() function handles shutting down the HOST HDAudio stream, while period-elapsed work handles its IRQs. Because avs_dai_fe_shutdown() frees the DAI's private context, these two operations must be synchronized to prevent use-after-free errors or worse. The vulnerability arises if this synchronization is not properly handled.

Impact Analysis

If exploited, this vulnerability could lead to use-after-free errors in the kernel, potentially causing system crashes, instability, or allowing an attacker to execute arbitrary code with kernel privileges.

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