CVE-2023-53724
Linux Kernel vulnerability analysis and mitigation

Overview

In the Linux kernel, a memory leak vulnerability was identified in the pcf50633-adc driver's pcf50633_adc_async_read() function. The issue occurs when the req allocation is not properly freed after adc_enqueue_request() fails to insert the req into the queue (NVD, Debian Tracker).

Technical details

The vulnerability exists in the Linux kernel's pcf50633-adc driver implementation. Specifically, when pcf50633_adc_async_read() allocates a req object but adc_enqueue_request() fails to insert it into the queue, the allocated memory is not properly freed, resulting in a memory leak (NVD).

Impact

The vulnerability can lead to memory leaks in the Linux kernel, potentially causing system resource depletion over time if repeatedly triggered (NVD).

Mitigation and workarounds

The vulnerability has been fixed in various Linux distributions. Debian has addressed this in multiple versions including bullseye (5.10.223-1), bookworm (6.1.148-1), and trixie (6.12.43-1) (Debian Tracker).

Additional resources


SourceThis report was generated using AI

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