CVE-2023-52689
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2023-52689 is a vulnerability in the Linux kernel's ALSA (Advanced Linux Sound Architecture) scarlett2 driver. The issue involves a missing mutex lock around get meter levels functionality, which could potentially lead to race conditions when accessing meter_level_map[] (Debian Tracker).

Technical details

The vulnerability exists in the scarlett2_meter_ctl_get() function where the data_mutex should be locked while accessing meter_level_map[]. This missing synchronization mechanism could lead to race conditions during concurrent access to the meter levels data (Red Hat Portal).

Impact

The vulnerability could potentially lead to data races and inconsistent meter level readings in the ALSA scarlett2 driver, affecting audio monitoring and measurement functionality (Debian Tracker).

Mitigation and workarounds

The issue has been fixed in various Linux kernel versions. Debian has addressed this in versions 5.10.234-1 for bullseye, 6.1.128-1 for bookworm, and 6.12.16-1 for sid. The fix involves adding the missing mutex lock around the get meter levels functionality (Debian Tracker).

Additional resources


SourceThis report was generated using AI

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