漏洞属于Linux内核级别的漏洞，在android 2.x至4.3之前的版本中同样存在，可以用于系统提权，获得root权限。属于Linux系统API缺陷。Linux下漏洞的CVE编号为CVE-2013-6282。-Linux kernel level vulnerabilities are vulnerabilities also exist in android 2.x versions prior to 4.3, the system can be used to provide the r

sha256算法源码，在linux环境下可以直接调用API，亲测可用。-sha256 algorithm source code in linux environment can call the API directly, pro-test available.