---

yaml --- r: 327779 b: refs/heads/master c: 0ad352c h: refs/heads/master i: 327777: 1e07dd9 327775: d0f1f8b v: v3
git-mirror · Aug 30, 2012 · bae3b22 · bae3b22
1 parent a4b4341
commit bae3b22
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c7232c9979cba684c50b64c513c4a83c9aa70563
+refs/heads/master: 0ad352cb433ed2b05921a32b5ee20410512e2320
diff --git a/trunk/net/ipv6/netfilter.c b/trunk/net/ipv6/netfilter.c
@@ -15,6 +15,7 @@ int ip6_route_me_harder(struct sk_buff *skb)
 {
 	struct net *net = dev_net(skb_dst(skb)->dev);
 	const struct ipv6hdr *iph = ipv6_hdr(skb);
+	unsigned int hh_len;
 	struct dst_entry *dst;
 	struct flowi6 fl6 = {
 		.flowi6_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
@@ -47,6 +48,13 @@ int ip6_route_me_harder(struct sk_buff *skb)
 	}
 #endif
 
+	/* Change in oif may mean change in hh_len. */
+	hh_len = skb_dst(skb)->dev->hard_header_len;
+	if (skb_headroom(skb) < hh_len &&
+	    pskb_expand_head(skb, HH_DATA_ALIGN(hh_len - skb_headroom(skb)),
+			     0, GFP_ATOMIC))
+		return -1;
+
 	return 0;
 }
 EXPORT_SYMBOL(ip6_route_me_harder);