static int vop_copy_dp_entry(struct vop_vdev *vdev,
			     struct mic_device_desc *argp, __u8 *type,
			     struct mic_device_desc **devpage)
{
	struct vop_device *vpdev = vdev->vpdev;
	struct mic_device_desc *devp;
	struct mic_vqconfig *vqconfig;
	int ret = 0, i;
	bool slot_found = false;

	vqconfig = mic_vq_config(argp);
	for (i = 0; i < argp->num_vq; i++) {
		if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) {
			ret =  -EINVAL;
			dev_err(vop_dev(vdev), "%s %d err %d\n",
				__func__, __LINE__, ret);
			goto exit;
		}
	}

	/* Find the first free device page entry */
	for (i = sizeof(struct mic_bootparam);
		i < MIC_DP_SIZE - mic_total_desc_size(argp);
		i += mic_total_desc_size(devp)) {
		devp = vpdev->hw_ops->get_dp(vpdev) + i;
		if (devp->type == 0 || devp->type == -1) {
			slot_found = true;
			break;
		}
	}
	if (!slot_found) {
		ret =  -EINVAL;
		dev_err(vop_dev(vdev), "%s %d err %d\n",
			__func__, __LINE__, ret);
		goto exit;
	}
	/*
	 * Save off the type before doing the memcpy. Type will be set in the
	 * end after completing all initialization for the new device.
	 */
	*type = argp->type;
	argp->type = 0;
	memcpy(devp, argp, mic_desc_size(argp));

	*devpage = devp;
exit:
	return ret;
}

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.