From: Debabrata Banerjee <dbanerje@akamai.com>
Date: Wed, 9 May 2018 19:32:10 -0400
Subject: bonding: do not allow rlb updates to invalid mac
Git-commit: 4fa8667ca3989ce14cf66301fa251544fbddbdd0
Patch-mainline: v4.17-rc5
References: networking-stable-18_05_15
Make sure multicast, broadcast, and zero mac's cannot be the output of rlb
updates, which should all be directed arps. Receive load balancing will be
collapsed if any of these happen, as the switch will broadcast.
Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/net/bonding/bond_alb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 1ed9529e7bd1..3f6faa657360 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -450,7 +450,7 @@ static void rlb_update_client(struct rlb_client_info *client_info)
{
int i;
- if (!client_info->slave)
+ if (!client_info->slave || !is_valid_ether_addr(client_info->mac_dst))
return;
for (i = 0; i < RLB_ARP_BURST_SIZE; i++) {
--
2.18.0