Inconsistent List Data Structure Vulnerability in Linux Kernel

CVE-2015-4178 · MEDIUM Severity

AV:L/AC:L/AU:N/C:N/I:N/A:C

The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call, related to fs/fs_pin.c and include/linux/fs_pin.h.

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