netdev - Re: [net-2.6 PATCH] af_packet: move strict addr_len check right before dev_[mc/unicast]

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Date:	Wed, 03 Mar 2010 01:06:41 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jpirko@...hat.com
Cc:	netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
	tcpdump-workers@...ts.tcpdump.org, proski@....org
Subject: Re: [net-2.6 PATCH] af_packet: move strict addr_len check right
 before dev_[mc/unicast]_[add/del]

From: Jiri Pirko <jpirko@...hat.com>
Date: Wed, 3 Mar 2010 07:40:01 +0100

> Subject: [net-2.6 PATCH] af_packet: move strict addr_len check right before dev_[mc/unicast]_[add/del]
> 
> My previous patch 914c8ad2d18b62ad1420f518c0cab0b0b90ab308 incorrectly changed
> the length check in packet_mc_add to be more strict. The problem is that
> userspace is not filling this field (and it stays zeroed) in case of setting
> PACKET_MR_PROMISC or PACKET_MR_ALLMULTI. So move the strict check to the point
> in path where the addr_len must be set correctly.
> 
> Signed-off-by: Jiri Pirko <jpirko@...hat.com>

Applied.
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