static void ecryptfs_kill_block_super(struct super_block *sb)
{
	struct ecryptfs_sb_info *sb_info = ecryptfs_superblock_to_private(sb);
	kill_anon_super(sb);
	if (!sb_info)
		return;
	ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
	bdi_destroy(&sb_info->bdi);
	kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
}

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