void arch_pick_mmap_layout(struct mm_struct *mm)
{
	mm->mmap_legacy_base = mmap_legacy_base();
	mm->mmap_base = mmap_base();

	if (mmap_is_legacy()) {
		mm->mmap_base = mm->mmap_legacy_base;
		mm->get_unmapped_area = arch_get_unmapped_area;
	} else {
		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
	}
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.