Huawei Honor 6, Honor 6 Plus, Honor 7 phones with software versions earlier than 6.9.16 could allow attackers to disable the PXN defense mechanism by invoking related drive code to crash the system or escalate privilege.
http://www.securityfocus.com/bid/93885
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20161026-01-pxn-en