Validate MAC address before copying the same to outgoing frame
skb destination address.
Signed-off-by: Murali Karicheri <m-kariche...@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.stras...@ti.com>
---
net/hsr/hsr_framereg.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 03b891904314..01331da28639 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -325,7 +325,10 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct
sk_buff *skb,
if (port->type != node_dst->addr_B_port)
return;
- ether_addr_copy(eth_hdr(skb)->h_dest, node_dst->macaddress_B);
+ if (is_valid_ether_addr(node_dst->macaddress_B))
+ ether_addr_copy(eth_hdr(skb)->h_dest, node_dst->macaddress_B);
+ else
+ WARN_ONCE(1, "%s: mac address B not valid\n", __func__);
}
void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
--
2.17.1
