static bool ldm_parse_tocblock (const u8 *data, struct tocblock *toc)
{
	BUG_ON (!data || !toc);

	if (MAGIC_TOCBLOCK != get_unaligned_be64(data)) {
		ldm_crit ("Cannot find TOCBLOCK, database may be corrupt.");
		return false;
	}
	strncpy (toc->bitmap1_name, data + 0x24, sizeof (toc->bitmap1_name));
	toc->bitmap1_name[sizeof (toc->bitmap1_name) - 1] = 0;
	toc->bitmap1_start = get_unaligned_be64(data + 0x2E);
	toc->bitmap1_size  = get_unaligned_be64(data + 0x36);

	if (strncmp (toc->bitmap1_name, TOC_BITMAP1,
			sizeof (toc->bitmap1_name)) != 0) {
		ldm_crit ("TOCBLOCK's first bitmap is '%s', should be '%s'.",
				TOC_BITMAP1, toc->bitmap1_name);
		return false;
	}
	strncpy (toc->bitmap2_name, data + 0x46, sizeof (toc->bitmap2_name));
	toc->bitmap2_name[sizeof (toc->bitmap2_name) - 1] = 0;
	toc->bitmap2_start = get_unaligned_be64(data + 0x50);
	toc->bitmap2_size  = get_unaligned_be64(data + 0x58);
	if (strncmp (toc->bitmap2_name, TOC_BITMAP2,
			sizeof (toc->bitmap2_name)) != 0) {
		ldm_crit ("TOCBLOCK's second bitmap is '%s', should be '%s'.",
				TOC_BITMAP2, toc->bitmap2_name);
		return false;
	}
	ldm_debug ("Parsed TOCBLOCK successfully.");
	return true;
}

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.