diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ee459dd411f5..1c0b7884dc27 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3894,6 +3894,9 @@ static void l2cap_ecred_rsp_defer(struct l2cap_chan *chan, void *data)
 	struct l2cap_ecred_conn_rsp *rsp_flex =
 		container_of(&rsp->pdu.rsp, struct l2cap_ecred_conn_rsp, hdr);
 
+	if (chan->mode != L2CAP_MODE_EXT_FLOWCTL)
+		return;
+
 	/* Check if channel for outgoing connection or if it wasn't deferred
 	 * since in those cases it must be skipped.
 	 */
@@ -3904,6 +3907,10 @@ static void l2cap_ecred_rsp_defer(struct l2cap_chan *chan, void *data)
 	/* Reset ident so only one response is sent */
 	chan->ident = 0;
 
+	/* Unreachable, check in l2cap_ecred_conn_req. If reached, drop rest */
+	if (WARN_ON_ONCE(rsp->count >= ARRAY_SIZE(rsp->pdu.scid)))
+		rsp->pdu.rsp.result = cpu_to_le16(L2CAP_CR_LE_NO_MEM);
+
 	/* Include all channels pending with the same ident */
 	if (!rsp->pdu.rsp.result)
 		rsp_flex->dcid[rsp->count++] = cpu_to_le16(chan->scid);
@@ -5063,6 +5070,7 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn,
 	__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
 
 	chan->ident = cmd->ident;
+	chan->mode = L2CAP_MODE_LE_FLOWCTL;
 
 	if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 		l2cap_state_change(chan, BT_CONNECT2);