| From | Andy Lutomirski <> | Date | Mon, 30 Jun 2014 14:11:49 -0700 | Subject | Re: [PATCH 01/11] fs: add O_BENEATH_ONLY flag to openat(2) |
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On Mon, Jun 30, 2014 at 1:40 PM, Andi Kleen <andi@firstfloor.org> wrote: > David Drysdale <drysdale@google.com> writes: > >> Add a new O_BENEATH_ONLY flag for openat(2) which restricts the >> provided path, rejecting (with -EACCES) paths that are not beneath >> the provided dfd. In particular, reject: >> - paths that contain .. components >> - paths that begin with / >> - symlinks that have paths as above. > > How about bind mounts?
What's the problematic scenario?
--Andy
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