mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-10-29 17:42:41 +00:00
cfe07f6e15
This was causing sporadic proxy_arp failures. Fixes: WIFI-7154 Signed-off-by: John Crispin <john@phrozen.org>
37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
From fd65e5a95d08389444e8591a20538b3edece0e15 Mon Sep 17 00:00:00 2001
|
|
From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
|
|
Date: Fri, 31 Jul 2020 19:26:16 +0300
|
|
Subject: [PATCH] net: bridge: clear bridge's private skb space on xmit
|
|
|
|
We need to clear all of the bridge private skb variables as they can be
|
|
stale due to the packet being recirculated through the stack and then
|
|
transmitted through the bridge device. Similar memset is already done on
|
|
bridge's input. We've seen cases where proxyarp_replied was 1 on routed
|
|
multicast packets transmitted through the bridge to ports with neigh
|
|
suppress which were getting dropped. Same thing can in theory happen with
|
|
the port isolation bit as well.
|
|
|
|
Fixes: 821f1b21cabb ("bridge: add new BR_NEIGH_SUPPRESS port flag to suppress arp and nd flood")
|
|
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
net/bridge/br_device.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
|
|
index 8c7b78f8bc23..9a2fb4aa1a10 100644
|
|
--- a/net/bridge/br_device.c
|
|
+++ b/net/bridge/br_device.c
|
|
@@ -36,6 +36,8 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
const unsigned char *dest;
|
|
u16 vid = 0;
|
|
|
|
+ memset(skb->cb, 0, sizeof(struct br_input_skb_cb));
|
|
+
|
|
rcu_read_lock();
|
|
nf_ops = rcu_dereference(nf_br_ops);
|
|
if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) {
|
|
--
|
|
2.25.1
|
|
|