mac802154: fixed potential skb leak with mac802154_parse_frame_start

This patch fix a memory leak if received frame was not able to parse.

Signed-off-by: Martin Townsend <[email protected]>
Signed-off-by: Alexander Aring <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>

Author: Martin Townsend

net/mac802154/wpan.c

@@ -573,6 +573,7 @@ void mac802154_wpans_rx(struct mac802154_priv *priv, struct sk_buff *skb)
 	ret = mac802154_parse_frame_start(skb, &hdr);
 	if (ret) {
 		pr_debug("got invalid frame\n");
+		kfree_skb(skb);
 		return;
 	}