Re: [PATCH 01/11] fs: add O_BENEATH_ONLY flag to openat(2)
From: Andy Lutomirski <luto@amacapital.net>
Date: 2014-06-30 21:12:13
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On Mon, Jun 30, 2014 at 1:40 PM, Andi Kleen [off-list ref] wrote:
David Drysdale [off-list ref] writes:quoted
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