bonding: do not allow rlb updates to invalid mac

[ Upstream commit 4fa8667ca3989ce14cf66301fa251544fbddbdd0 ]

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Debabrata Banerjee 2018-05-09 19:32:10 -04:00 committed by Greg Kroah-Hartman
parent afad8f8400
commit 8ff9368148

View File

@ -453,7 +453,7 @@ 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++) {