netdev - Re: [BUG net-next-2.6] vlan, bonding, bnx2 problems

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Message-Id: <20100719.093503.236223875.davem@davemloft.net>
Date:	Mon, 19 Jul 2010 09:35:03 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	mchan@...adcom.com, pedro.netdev@...devamos.com,
	netdev@...r.kernel.org, kaber@...sh.net, bhutchings@...arflare.com
Subject: Re: [BUG net-next-2.6] vlan, bonding, bnx2 problems

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 19 Jul 2010 15:24:14 +0200

> [RFC net-next-2.6] bonding: fix bond_inet6addr_event() 
> 
> After commit ad1afb0039391 (vlan_dev: VLAN 0 should be treated
> as "no vlan tag" (802.1p packet)),
> bond_inet6addr_event() might be called with a NULL bond->vlgrp pointer, and
> a non empty bond->vlan_list. vlan_group_get_device() is dereferencing a NULL pointer.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

I'll apply this bandaid for now, but yes we need to think more
deeply about this.
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