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path: root/net/bridge/br_input.c
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Diffstat (limited to 'net/bridge/br_input.c')
-rw-r--r--net/bridge/br_input.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 2b1cce46cab..2aa5dda24a0 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -54,6 +54,9 @@ int br_handle_frame_finish(struct sk_buff *skb)
struct net_bridge_fdb_entry *dst;
int passedup = 0;
+ /* insert into forwarding database after filtering to avoid spoofing */
+ br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
if (br->dev->flags & IFF_PROMISC) {
struct sk_buff *skb2;
@@ -108,8 +111,7 @@ int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb)
if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
goto err;
- if (p->state == BR_STATE_LEARNING ||
- p->state == BR_STATE_FORWARDING)
+ if (p->state == BR_STATE_LEARNING)
br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
if (p->br->stp_enabled &&