From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] ping: prevent NULL pointer dereference on write to
 msg_name
Date: Mon, 18 Nov 2013 16:02:38 -0500 (EST)
Message-ID: <20131118.160238.2288108703856396394.davem@davemloft.net>
References: <20131118060745.GL16541@order.stressinduktion.org>
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To: hannes@stressinduktion.org
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From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 18 Nov 2013 07:07:45 +0100

> A plain read() on a socket does set msg->msg_name to NULL. So check for
> NULL pointer first.
> 
> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
> ---
> 
> Addendum to "[v4] inet: prevent leakage of uninitialized memory to user in
> recv syscalls".

Applied and queued up for -stable, thanks Hannes.

Looks like ipv6 got this case right.