Re: [PATCH v2] fs: block cross-uid sticky symlinks

[Al Viro]

On Mon, May 31, 2010 at 10:50:08AM -0700, Kees Cook wrote:

> > Give your users their own /tmp. No kernel mods, no misbehaviours, no
> > weirdomatic path walking hackery. No kernel patch needed that I can see.
> 
> Some real applications expect to share /tmp (e.g. "screen").

/tmp/screen-exchange, you mean?  Such a brilliant idea on multiuser system...
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