diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b0947ae336df..636a3b4873db 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5311,6 +5311,7 @@ static __le16 l2cap_err_to_reason(int err)
 static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	u8 *data = skb->data;
 	int len = skb->len;
 	struct l2cap_cmd_hdr cmd;
@@ -5318,6 +5319,9 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 
 	l2cap_raw_recv(conn, skb);
 
+	if (hcon->type != LE_LINK)
+		return;
+
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
 		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
@@ -5355,6 +5359,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 				     struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	u8 *data = skb->data;
 	int len = skb->len;
 	struct l2cap_cmd_hdr cmd;
@@ -5362,6 +5367,9 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 	l2cap_raw_recv(conn, skb);
 
+	if (hcon->type != ACL_LINK)
+		return;
+
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
 		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);