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Vulnerability DatabaseCVE-2025-39696

CVE-2025-39696: 
Linux Debian vulnerability analysis and mitigation

Overview

CVE-2025-39696 is a vulnerability discovered in the Linux kernel, specifically affecting the ALSA (Advanced Linux Sound Architecture) HDA driver for the TAS2781 audio codec. The vulnerability was disclosed on September 5, 2025, and involves an incorrect reference to tasdevice_priv during the calibration data management process (NVD).

Technical details

The vulnerability stems from a programming error where the reference to tasdevicepriv was incorrectly set to h->hdapriv instead of h->priv during the conversion process to unify calibration data management. Due to the use of a void pointer, the compiler was unable to detect this incorrect reference. This implementation flaw leads to memory corruption issues (NVD).

Impact

The incorrect reference implementation results in memory corruption and eventual system crashes. The impact is particularly significant as it affects the system's audio subsystem stability (NVD).

Mitigation and workarounds

The vulnerability has been resolved in the Linux kernel through patches that correct the reference to tasdevice_priv. Two specific commits have been implemented to address this issue (Kernel.org, Kernel.org).

Additional resources

Source: This report was generated using AI

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