diff --git a/wpa_supplicant/dbus/dbus_new_handlers.c b/wpa_supplicant/dbus/dbus_new_handlers.c index da39fa165..73f4e442f 100644 --- a/wpa_supplicant/dbus/dbus_new_handlers.c +++ b/wpa_supplicant/dbus/dbus_new_handlers.c @@ -987,21 +987,24 @@ static int wpas_dbus_get_scan_ssids(DBusMessage *message, DBusMessageIter *var, dbus_message_iter_recurse(&array_iter, &sub_array_iter); dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len); - if (len == 0) { - dbus_message_iter_next(&array_iter); - continue; + + if (len != 0) { + ssid = os_malloc(len); + if (ssid == NULL) { + wpa_printf(MSG_DEBUG, + "wpas_dbus_handler_scan[dbus]: " + "out of memory. Cannot allocate " + "memory for SSID"); + *reply = dbus_message_new_error( + message, DBUS_ERROR_NO_MEMORY, NULL); + return -1; + } + os_memcpy(ssid, val, len); + } else { + /* Allow zero-length SSIDs */ + ssid = NULL; } - ssid = os_malloc(len); - if (ssid == NULL) { - wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: " - "out of memory. Cannot allocate memory for " - "SSID"); - *reply = dbus_message_new_error( - message, DBUS_ERROR_NO_MEMORY, NULL); - return -1; - } - os_memcpy(ssid, val, len); ssids[ssids_num].ssid = ssid; ssids[ssids_num].ssid_len = len;