netdev - Re: [PATCH] ipv6/ip6_gre: fix error case handling in ip6gre_tunnel

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Message-Id: <20130206.160236.144295308153323655.davem@davemloft.net>
Date:	Wed, 06 Feb 2013 16:02:36 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	tt.rantala@...il.com, kuznet@....inr.ac.ru, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net, netdev@...r.kernel.org,
	xeb@...l.ru
Subject: Re: [PATCH] ipv6/ip6_gre: fix error case handling in
 ip6gre_tunnel_xmit()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 06 Feb 2013 05:29:55 -0800

> On Wed, 2013-02-06 at 15:24 +0200, Tommi Rantala wrote:
>> ip6gre_tunnel_xmit() is leaking the skb when we hit this error branch,
>> and the -1 return value from this function is bogus. Use the error
>> handling we already have in place in ip6gre_tunnel_xmit() for this error
>> case to fix this.
>> 
>> Signed-off-by: Tommi Rantala <tt.rantala@...il.com>
>> ---
>>  net/ipv6/ip6_gre.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
>> index c727e47..131dd09 100644
>> --- a/net/ipv6/ip6_gre.c
>> +++ b/net/ipv6/ip6_gre.c
>> @@ -960,7 +960,7 @@ static netdev_tx_t ip6gre_tunnel_xmit(struct sk_buff *skb,
>>  	int ret;
>>  
>>  	if (!ip6_tnl_xmit_ctl(t))
>> -		return -1;
>> +		goto tx_err;
>>  
>>  	switch (skb->protocol) {
>>  	case htons(ETH_P_IP):
> 
> Acked-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks everyone.
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