From: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org>
Date: Fri, 25 May 2007 08:22:25 +0000 (-0700)
Subject: [IPSEC]: Fix IPv6 AH calculation in outbound
X-Git-Tag: v2.6.22-rc4~70^2~17
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=144466bdf8c479ae36678ace7a3b8e8b748df6f6;p=linux-2.6-omap-h63xx.git

[IPSEC]: Fix IPv6 AH calculation in outbound

Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index b696c840120..128f94c79c6 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -247,7 +247,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 	memcpy(tmp_base, top_iph, sizeof(tmp_base));
 
 	tmp_ext = NULL;
-	extlen = skb_transport_offset(skb) + sizeof(struct ipv6hdr);
+	extlen = skb_transport_offset(skb) - sizeof(struct ipv6hdr);
 	if (extlen) {
 		extlen += sizeof(*tmp_ext);
 		tmp_ext = kmalloc(extlen, GFP_ATOMIC);