Re: [PATCH] Add a /proc/self/exedir link

[Neil Brown]

On Thursday April 6, tony.luck@xxxxxxxxx wrote:
> > > I have concerns about security policy ...
> >
> > I'm not sure I understand. Only if you run that program, and if you
> > don't have access to the intermediate directory, how do you run it?
> 
> It leaks information about the parts of the pathname below the
> directory that you otherwise would not be able to see.  E.g. if
> I have $HOME/top-secret-projects/secret-code-name1/binary
> where the top-secret-projects directory isn't readable by you,
> then you may find out secret-code-name1 by reading the
> /proc/{pid}/exedir symlink.

But we already have /proc/{pid}/exe which is a symlink to the
executable, thus exposing all the directory names already.

NeilBrown
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