diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 577ea5d..7c1745d 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -245,6 +245,9 @@ static int br_parse_ip_options(struct sk_buff *skb)
 	struct net_device *dev = skb->dev;
 	u32 len;
 
+	if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+		goto inhdr_error;
+
 	iph = ip_hdr(skb);
 	opt = &(IPCB(skb)->opt);