Bluetooth: mgmt: Disallow legacy MGMT_OP_READ_LOCAL_OOB_EXT_DATA

Legacy (v2.0) controllers do not support Extended OOB Data used by SSP.
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

net/bluetooth/mgmt.c

@@ -7315,6 +7315,11 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
 	if (!rp)
 		return -ENOMEM;
 
+	if (!status && !lmp_ssp_capable(hdev)) {
+		status = MGMT_STATUS_NOT_SUPPORTED;
+		eir_len = 0;
+	}
+
 	if (status)
 		goto complete;