netdev - Re: VLAN over GRE segfault

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Message-Id: <20110318.151643.58424378.davem@davemloft.net>
Date:	Fri, 18 Mar 2011 15:16:43 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	eric.dumazet@...il.com, diddi@...di.se, netdev@...r.kernel.org,
	kaber@...sh.net
Subject: Re: VLAN over GRE segfault

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Fri, 18 Mar 2011 14:28:59 -0500

> On Fri, Mar 18, 2011 at 11:27:27AM +0100, Eric Dumazet wrote:
>>
>> This uncover a bug in vlan code.
>> 
>> We should make sure vlan devices take into account their
>> real_dev->needed_headroom or we risk a crash in ipgre_header(), because
>> we dont have enough room to push IP header in skb.
>> 
>> Reported-by: Diddi Oscarsson <diddi@...di.se>
>> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
>> Cc: Patrick McHardy <kaber@...sh.net>
>> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> 
> Acked-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied.
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