Mount Management Vulnerability in Linux Kernel

CVE-2025-38058

What is CVE-2025-38058?

A vulnerability in the Linux kernel's mount management functionality could allow an unauthorized modification of references during the unmounting process. Specifically, the lack of proper locking around the legitimize_mnt() function can lead to potential inconsistencies in resource management. This occurs when the mounting count is incremented after a validation check allows access to a memory that should ideally be protected. The oversight poses risks for system stability and can create avenues for further exploitation if left unaddressed.

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