diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 2362cad43b1d..198773c1cc7c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2669,6 +2669,12 @@ static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff
 		BT_DBG("Conn pending sec level is %d, ssp is %d, key len is %d",
 			conn->pending_sec_level, conn->ssp_mode, key->pin_len);
 	}
+	if (conn && (conn->ssp_mode == 0) &&
+		(conn->pending_sec_level == BT_SECURITY_VERY_HIGH) &&
+		(key->pin_len != 16)) {
+		BT_DBG("Security is high ignoring this key");
+		goto not_found;
+	}
 
 	if (key->key_type == 0x04 && conn && conn->auth_type != 0xff &&
 						(conn->auth_type & 0x01)) {