diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 73bc6f659812..1c492146594c 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -224,6 +224,9 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
 	if (!skb_mac_header_was_set(skb))
 		return NULL;
 
+	if (skb->mac_len < sizeof(struct ethhdr))
+		return NULL;
+
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 
 	list_for_each_entry_rcu(node, node_db, mac_list) {