CVE 2016-6728

An elevation of privilege vulnerability in the kernel ION subsystem in Android before 2016-11-05 could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Critical due to the possibility of a local permanent device compromise, which may require reflashing the operating system to repair the device. Android ID: A-30400942.

See the CVE page on Mitre.org for more details.