static void tg3_hwmon_open(struct tg3 *tp)
{
	int i, err;
	u32 size = 0;
	struct pci_dev *pdev = tp->pdev;
	struct tg3_ocir ocirs[TG3_SD_NUM_RECS];

	tg3_sd_scan_scratchpad(tp, ocirs);

	for (i = 0; i < TG3_SD_NUM_RECS; i++) {
		if (!ocirs[i].src_data_length)
			continue;

		size += ocirs[i].src_hdr_length;
		size += ocirs[i].src_data_length;
	}

	if (!size)
		return;

	/* Register hwmon sysfs hooks */
	err = sysfs_create_group(&pdev->dev.kobj, &tg3_group);
	if (err) {
		dev_err(&pdev->dev, "Cannot create sysfs group, aborting\n");
		return;
	}

	tp->hwmon_dev = hwmon_device_register(&pdev->dev);
	if (IS_ERR(tp->hwmon_dev)) {
		tp->hwmon_dev = NULL;
		dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n");
		sysfs_remove_group(&pdev->dev.kobj, &tg3_group);
	}
}

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.