void reds_on_main_mouse_mode_request(void *message, size_t size)
{
    switch (((SpiceMsgcMainMouseModeRequest *)message)->mode) {
    case SPICE_MOUSE_MODE_CLIENT:
        if (reds->is_client_mouse_allowed) {
            reds_set_mouse_mode(SPICE_MOUSE_MODE_CLIENT);
        } else {
            spice_info("client mouse is disabled");
        }
        break;
    case SPICE_MOUSE_MODE_SERVER:
        reds_set_mouse_mode(SPICE_MOUSE_MODE_SERVER);
        break;
    default:
        spice_warning("unsupported mouse mode");
    }
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.