netdev - Stable inclusion request: recvmsg/sendmsg userspace regression fix

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Date:	Fri, 30 Jan 2015 16:28:56 +0100
From:	Michal Marek <mmarek@...e.cz>
To:	Linux Kernel Network Developers <netdev@...r.kernel.org>
CC:	Ani Sinha <ani@...sta.com>,
	"David S. Miller" <davem@...emloft.net>,
	Stable Tree <stable@...r.kernel.org>
Subject: Stable inclusion request: recvmsg/sendmsg userspace regression fix

Hi,

please include

commit 6a2a2b3ae0759843b22c929881cc184b00cc63ff
Author: Ani Sinha <ani@...sta.com>
Date:   Mon Sep 8 14:49:59 2014 -0700

    net:socket: set msg_namelen to 0 if msg_name is passed as NULL in
msghdr struct from userland.

to 3.14.y and older trees, since it fixes a userspace regression caused
by commit dbb490b9 ("net: socket: error on a negative msg_namelen"). The
patch applies cleanly to all trees down to 2.6.32.y.

Thanks,
Michal
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