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path: root/net/bridge/br_stp_bpdu.c
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Diffstat (limited to 'net/bridge/br_stp_bpdu.c')
-rw-r--r--net/bridge/br_stp_bpdu.c3
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)))