Performance Monitor Vulnerability in Linux Kernel Affecting Active Components

CVE-2024-58086

Summary

A vulnerability exists in the Linux kernel where the active performance monitor (v3d->active_perfmon) is not appropriately stopped before being destroyed. This can result in a stale pointer reference and potentially cause undefined behavior and system instability. The issue underscores the importance of ensuring that active components are managed correctly during their lifecycle, as addressed in a recent patch that halts the performance monitor before destruction.

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