netdev - Re: net: socket: NULL ptr deref in sendmsg

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Message-Id: <20140728.171900.1527499085392907198.davem@davemloft.net>
Date:	Mon, 28 Jul 2014 17:19:00 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	ryabinin.a.a@...il.com, a.ryabinin@...sung.com,
	sasha.levin@...cle.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, davej@...hat.com, edumazet@...gle.com
Subject: Re: net: socket: NULL ptr deref in sendmsg

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Sat, 26 Jul 2014 17:54:40 +0200

> On Sa, 2014-07-26 at 19:48 +0400, Andrey Ryabinin wrote:
>> 2014-07-26 2:15 GMT+04:00 Hannes Frederic Sowa <hannes@...essinduktion.org>:
>> > Otherwise I would just set msg_namelen = 0, too, and just not handle
>> > passed in NULL pointers to sockaddrs.
>> >
>> 
>> I like that, how about such chage:
 ...
> LGTM! Can you send a patch?

I definitely agree that we should treat NULL as no address specified.
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