diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e278f97c830528afd9e2ffed5f5b3814a4441fca..ca170b417da670ed5d900accfed5d81a09e94588 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1028,6 +1028,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 	ieee80211_tx_skb(sdata, skb);
+	kfree(buf);
 }
 
 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,