diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 783e741491ec..1a0f447113f2 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -198,6 +198,10 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct sk_buff *skb,
 
 	if (ethhdr->h_proto == htons(ETH_P_PRP) ||
 	    ethhdr->h_proto == htons(ETH_P_HSR)) {
+		/* Check if skb contains hsr_ethhdr */
+		if (skb->mac_len < sizeof(struct hsr_ethhdr))
+			return NULL;
+
 		/* Use the existing sequence_nr from the tag as starting point
 		 * for filtering duplicate frames.
 		 */