static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
{
	struct udf_sb_info *sbi = UDF_SB(sb);

	sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
				  GFP_KERNEL);
	if (!sbi->s_partmaps) {
		udf_err(sb, "Unable to allocate space for %d partition maps\n",
			count);
		sbi->s_partitions = 0;
		return -ENOMEM;
	}

	sbi->s_partitions = count;
	return 0;
}

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.