configfs

Configfs is a Linux kernel filesystem used to manage kernel objects through user-space file operations. On WindowsForum.com, discussions about configfs focus on security vulnerabilities, particularly CVE-2025-38131, a race condition in the CoreSight configfs handling that leads to a use-after-free (UAF) bug. This issue affects systems using CoreSight trace device nodes or custom/OEM kernels, enabling local denial-of-service attacks. The tag covers kernel patches, backports, and mitigation strategies for such configfs-related flaws. Topics include the technical details of the race condition, its impact on trace configuration, and recommended actions for administrators to secure affected hosts.