linux-kernel - Re: [PATCH/FIX] net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg

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Message-ID: <20130529081147.GC24933@gmail.com>
Date:	Wed, 29 May 2013 10:11:47 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	David Miller <davem@...emloft.net>
Cc:	luto@...capital.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	trinity@...r.kernel.org
Subject: Re: [PATCH/FIX] net: Block MSG_CMSG_COMPAT in send(m)msg and
 recv(m)msg


* David Miller <davem@...emloft.net> wrote:

> From: Ingo Molnar <mingo@...nel.org>
> Date: Tue, 28 May 2013 10:56:00 +0200
> 
> > MSG_CMSG_COMPAT is (AFAIK) not intended to be part of the API --
> > it's a hack that steals a bit to indicate to other networking code
> > that a compat entry was used.  So don't allow it from a non-compat
> > syscall.
> > 
> > This prevents an oops when running this code:
>  ...
> > Cc: David S. Miller <davem@...emloft.net>
> > Signed-off-by: Andy Lutomirski <luto@...capital.net>
> 
> Applied and queued up for -stable.

Thanks David!

	Ingo
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