From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 27/44] [IPV6] IPSEC: Support sending with Mobile IPv6
 extension headers.
Date: Wed, 23 Aug 2006 19:31:39 -0700 (PDT)
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From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Thu, 24 Aug 2006 00:02:28 +0900

> Mobile IPv6 defines home address option as an option of destination
> options header. It is placed before fragment header then
> ip6_find_1stfragopt() is fixed to know about it.
> Home address option also carries final source address of the flow, then
> outbound AH calculation should take care of it like routing header case.
> Based on MIPL2 kernel patch.
> 
> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

Applied to net-2.6.19, and I fixed the leak mentioned here:

> +#ifdef CONFIG_IPV6_MIP6
> +	if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len, XFRM_POLICY_IN))
> +		goto out;
> +#else
>  	if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len))
>  		goto free_out;
> +#endif

By making MIP6 case goto free_out; too.