linux-kernel - Re: /proc/<pid>/exe symlink behavior change in >=3.15.

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Message-ID: <5411EBF3.3040008@gmail.com>
Date:	Thu, 11 Sep 2014 20:37:39 +0200
From:	Piotr Karbowski <piotr.karbowski@...il.com>
To:	Mateusz Guzik <mguzik@...hat.com>,
	Al Viro <viro@...IV.linux.org.uk>
CC:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: /proc/<pid>/exe symlink behavior change in >=3.15.

Hi Mateusz,

 > I can implement that later if it sounds sane enough.
> Note this behaviour seems to be a requirement for cross-rename to work.
>
> At least restoring previous behaviour while keeping cross-rename is not hard,
> I can write it later.

Have you find a proper solution for this very issue or anything that can 
push forward addressing it?

Thankfully this issue has been addressed by a workaround in fs/dcache.c 
in grsecurity patch for 3.16.2 
(grsecurity-3.0-3.16.2-201409082129.patch) but it would be great to have 
a fix upstream.

-- Piotr.
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