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-rw-r--r--net/bridge/br_input.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 4ef3f6b17bd0..787d7dad6b7e 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -35,6 +35,16 @@ static int br_pass_frame_up(struct sk_buff *skb)
brstats->rx_bytes += skb->len;
u64_stats_update_end(&brstats->syncp);
+ /* Bridge is just like any other port. Make sure the
+ * packet is allowed except in promisc modue when someone
+ * may be running packet capture.
+ */
+ if (!(brdev->flags & IFF_PROMISC) &&
+ !br_allowed_egress(br, br_get_vlan_info(br), skb)) {
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
indev = skb->dev;
skb->dev = brdev;