static void __exit ext4_exit_fs(void)
{
	ext4_destroy_lazyinit_thread();
	unregister_as_ext2();
	unregister_as_ext3();
	unregister_filesystem(&ext4_fs_type);
	destroy_inodecache();
	ext4_exit_xattr();
	ext4_exit_mballoc();
	ext4_exit_feat_adverts();
	remove_proc_entry("fs/ext4", NULL);
	kset_unregister(ext4_kset);
	ext4_exit_system_zone();
	ext4_exit_pageio();
}

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