static void reclaim_consumed_buffers(struct port *port)
{
	struct port_buffer *buf;
	unsigned int len;

	if (!port->portdev) {
		/* Device has been unplugged.  vqs are already gone. */
		return;
	}
	while ((buf = virtqueue_get_buf(port->out_vq, &len))) {
		free_buf(buf, false);
		port->outvq_full = false;
	}
}

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.