1 files changed, 3 insertions, 0 deletions

diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index b91a875aca01..d071f1c9ad0b 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -140,6 +140,9 @@ int br_stp_handle_bpdu(struct sk_buff *skb)
         struct net_bridge *br = p->br;
         unsigned char *buf;
 
+        /* insert into forwarding database after filtering to avoid spoofing */
+        br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
         /* need at least the 802 and STP headers */
         if (!pskb_may_pull(skb, sizeof(header)+1) ||
             memcmp(skb->data, header, sizeof(header)))