X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fipv6%2Fah6.c;h=fb0d07a15e934678c8c91fbfa5bcf0be5718a50a;hb=44c3b59102e3ecc7a01e9811862633e670595e51;hp=4eaf55072b1b05ff7c52537acb01eead7bd761f4;hpb=febb187761b02fce7d61b9c897d0e701f672b5ee;p=linux-2.6-omap-h63xx.git

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 4eaf55072b1..fb0d07a15e9 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -370,6 +370,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 	ip6h->flow_lbl[2] = 0;
 	ip6h->hop_limit   = 0;
 
+	spin_lock(&x->lock);
 	{
 		u8 auth_data[MAX_AH_AUTH_LEN];
 
@@ -378,14 +379,15 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 		skb_push(skb, hdr_len);
 		err = ah_mac_digest(ahp, skb, ah->auth_data);
 		if (err)
-			goto free_out;
-		err = -EINVAL;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
-			LIMIT_NETDEBUG(KERN_WARNING "ipsec ah authentication error\n");
-			x->stats.integrity_failed++;
-			goto free_out;
-		}
+			goto unlock;
+		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
+			err = -EBADMSG;
 	}
+unlock:
+	spin_unlock(&x->lock);
+
+	if (err)
+		goto free_out;
 
 	skb->network_header += ah_hlen;
 	memcpy(skb_network_header(skb), tmp_hdr, hdr_len);