static void *m_start(struct seq_file *seq, loff_t *ppos, struct uid_gid_map *map)
{
	struct uid_gid_extent *extent = NULL;
	loff_t pos = *ppos;

	if (pos < map->nr_extents)
		extent = &map->extent[pos];

	return extent;
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.