netdev - Re: [PATCH] net: socket: error on a negative msg

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Date:	Wed, 12 Mar 2014 16:31:30 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	matthew.leach@....com
Cc:	netdev@...r.kernel.org, Will.Deacon@....com, Mark.Rutland@....com,
	dan.carpenter@...cle.com
Subject: Re: [PATCH] net: socket: error on a negative msg_namelen

From: Matthew Leach <matthew.leach@....com>
Date: Tue, 11 Mar 2014 11:58:27 +0000

> When copying in a struct msghdr from the user, if the user has set the
> msg_namelen parameter to a negative value it gets clamped to a valid
> size due to a comparison between signed and unsigned values.
> 
> Ensure the syscall errors when the user passes in a negative value.
> 
> Signed-off-by: Matthew Leach <matthew.leach@....com>

Applied and queued up for -stable, thanks.
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