diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 7fe7280e8437..d45d4be63dd8 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -665,7 +665,8 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 		}
 
 		if (unlikely(tx->key && tx->key->flags & KEY_FLAG_TAINTED &&
-			     !ieee80211_is_deauth(hdr->frame_control)))
+			     !ieee80211_is_deauth(hdr->frame_control)) &&
+			     tx->skb->protocol != tx->sdata->control_port_protocol)
 			return TX_DROP;
 
 		if (!skip_hw && tx->key &&