bridge: Fix IGMP3 report parsing

The IGMP3 report parsing is looking at the wrong address for group records. This patch fixes it. Reported-by: Banyeer <[email protected]> Signed-off-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
goeke · Apr 8, 2010 · fd218cf · fd218cf
1 parent 94824f3
commit fd218cf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
@@ -723,7 +723,7 @@ static int br_multicast_igmp3_report(struct net_bridge *br,
 		if (!pskb_may_pull(skb, len))
 			return -EINVAL;
 
-		grec = (void *)(skb->data + len);
+		grec = (void *)(skb->data + len - sizeof(*grec));
 		group = grec->grec_mca;
 		type = grec->grec_type;