static void perf_cgroup_css_free(struct cgroup *cont)
{
	struct perf_cgroup *jc;
	jc = container_of(cgroup_subsys_state(cont, perf_subsys_id),
			  struct perf_cgroup, css);
	free_percpu(jc->info);
	kfree(jc);
}

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