diff --git a/drivers/staging/most/net/net.c b/drivers/staging/most/net/net.c
index 30d816b7e165..ff80834ef04a 100644
--- a/drivers/staging/most/net/net.c
+++ b/drivers/staging/most/net/net.c
@@ -81,6 +81,11 @@ static int skb_to_mamac(const struct sk_buff *skb, struct mbo *mbo)
 	unsigned int payload_len = skb->len - ETH_HLEN;
 	unsigned int mdp_len = payload_len + MDP_HDR_LEN;
 
+	if (mdp_len < skb->len) {
+		pr_err("drop: too large packet! (%u)\n", skb->len);
+		return -EINVAL;
+	}
+
 	if (mbo->buffer_length < mdp_len) {
 		pr_err("drop: too small buffer! (%d for %d)\n",
 		       mbo->buffer_length, mdp_len);
@@ -128,6 +133,11 @@ static int skb_to_mep(const struct sk_buff *skb, struct mbo *mbo)
 	u8 *buff = mbo->virt_address;
 	unsigned int mep_len = skb->len + MEP_HDR_LEN;
 
+	if (mep_len < skb->len) {
+		pr_err("drop: too large packet! (%u)\n", skb->len);
+		return -EINVAL;
+	}
+
 	if (mbo->buffer_length < mep_len) {
 		pr_err("drop: too small buffer! (%d for %d)\n",
 		       mbo->buffer_length, mep_len);