From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net: socket: error on a negative msg_namelen
Date: Wed, 12 Mar 2014 16:31:30 -0400 (EDT)
Message-ID: <20140312.163130.1932426314100805531.davem@davemloft.net>
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Cc: netdev@vger.kernel.org, Will.Deacon@arm.com, Mark.Rutland@arm.com,
	dan.carpenter@oracle.com
To: matthew.leach@arm.com
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From: Matthew Leach <matthew.leach@arm.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@arm.com>

Applied and queued up for -stable, thanks.