static const char *retrieve_id_from_card_name(const char *name)
{
	const char *spos = name;

	while (*name) {
		if (isspace(*name) && isalnum(name[1]))
			spos = name + 1;
		name++;
	}
	return spos;
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.