static int parse_strtoul(const char *buf,
		unsigned long max, unsigned long *value)
{
	char *endp;

	*value = simple_strtoul(skip_spaces(buf), &endp, 0);
	endp = skip_spaces(endp);
	if (*endp || *value > max)
		return -EINVAL;

	return 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.