Mount and symlinks
Posted Mar 11, 2010 11:53 UTC (Thu) by epa
Parent article: 2.6.34 Merge window, part 2
The umount() system call supports a new UMOUNT_NOFOLLOW flag which prevents the following of symbolic links. Without this flag, local users who can perform unprivileged mounts can use a symbolic link to unmount arbitrary filesystems.
Is this fixing a security hole or is it a new feature?
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