static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
{

	if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
		IWL_ERR(priv, "ACTIVATE a non DRIVER active station id %u "
			"addr %pM\n",
			sta_id, priv->stations[sta_id].sta.sta.addr);

	if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) {
		IWL_DEBUG_ASSOC(priv,
				"STA id %u addr %pM already present in uCode "
				"(according to driver)\n",
				sta_id, priv->stations[sta_id].sta.sta.addr);
	} else {
		priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
		IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n",
				sta_id, priv->stations[sta_id].sta.sta.addr);
	}
}
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.