netdev - Re: [Security] [PATCH] infinite recursion in netlink

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Message-ID: <20070426053735.GC2819@sequoia.sous-sol.org>
Date:	Wed, 25 Apr 2007 22:37:35 -0700
From:	Chris Wright <chrisw@...s-sol.org>
To:	Greg KH <greg@...ah.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>, security@...nel.org,
	davem@...emloft.net, jaco@...on.co.za, netdev@...r.kernel.org
Subject: Re: [Security] [PATCH] infinite recursion in netlink

* Greg KH (greg@...ah.com) wrote:
> On Wed, Apr 25, 2007 at 01:15:12PM -0700, Linus Torvalds wrote:
> > 
> > 
> > On Wed, 25 Apr 2007, Alexey Kuznetsov wrote:
> > > 
> > > Reply to NETLINK_FIB_LOOKUP messages were misrouted back to kernel,
> > > which resulted in infinite recursion and stack overflow.
> 
> Wait, I just had the bright idea of actually testing this before I
> pushed out a 2.6.20.9 kernel with another fix in it, and nope, still
> crashes, even with this patch  :(

Odd, I tested it too (on linus-git), and it's fixed (it was definitely
the problem, of sending back to kernel).

thanks,
-chris
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