kernel: add linux 4.9 support

[openwrt/openwrt.git] / target / linux / generic / patches-4.9 / 640-bridge-only-accept-EAP-locally.patch

diff --git a/target/linux/generic/patches-4.9/640-bridge-only-accept-EAP-locally.patch b/target/linux/generic/patches-4.9/640-bridge-only-accept-EAP-locally.patch
new file mode 100644 (file)
index 0000000..3202499
--- /dev/null
+++ b/target/linux/generic/patches-4.9/640-bridge-only-accept-EAP-locally.patch
@@ -0,0 +1,27 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: [PATCH] bridge: only accept EAP locally
+
+When bridging, do not forward EAP frames to other ports, only deliver
+them locally, regardless of the state.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+--- a/net/bridge/br_input.c
++++ b/net/bridge/br_input.c
+@@ -163,11 +163,14 @@ int br_handle_frame_finish(struct net *n
+               }
+       }
+ 
++      BR_INPUT_SKB_CB(skb)->brdev = br->dev;
++
++      if (skb->protocol == htons(ETH_P_PAE))
++              return br_pass_frame_up(skb);
++
+       if (p->state == BR_STATE_LEARNING)
+               goto drop;
+ 
+-      BR_INPUT_SKB_CB(skb)->brdev = br->dev;
+-
+       if (IS_ENABLED(CONFIG_INET) && skb->protocol == htons(ETH_P_ARP))
+               br_do_proxy_arp(skb, br, vid, p);
+