The clone_mnt function in fs/namespace.c in the Linux kernel before
3.8.6 does not properly restrict changes to the MNT_READONLY flag,
which allows local users to bypass an intended read-only property of a
filesystem by leveraging a separate mount namespace.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20130416 Re: Re: Summary of security bugs (now fixed) in user namespaces
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