Use-After-Free Vulnerability in Linux Kernel Affecting Workqueue Functionality

CVE-2025-21786

Summary

A vulnerability exists in the Linux kernel's handling of workqueue functionality, specifically related to the detachment process of rescuers from worker pools. A flaw was introduced where the reference to the worker pool was not adequately maintained during detachment, leading to a potential use-after-free scenario. This vulnerability can compromise system integrity and stability if left unaddressed, necessitating immediate action to ensure a secure environment.

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