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Date:	Sun, 20 Jul 2014 21:15:29 +0200
From:	Joakim Tjernlund <>
To:	Richard Weinberger <>
Cc:	LKML <>,
	Andreas Schwab <>
Subject: Re: ls -l /proc/1/exe -> Permission denied

Richard Weinberger <> wrote on 2014/07/20 14:05:41:
> Am 20.07.2014 13:51, schrieb Andreas Schwab:
> > Richard Weinberger <> writes:
> >> Do you have an example?
> > 
> > proc symlinks are special because they actually resolve to the inode.
> Ah. If an attacker manages the kernel to follow the symlink he could
> indirectly access that file.
> Thanks for pointing this out!

That is a big if, I read this as you don't trust the kernels impl.
of proc sym links so paper over this with denying all other to read 
data such as the exe sym link.

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