A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
- http://packetstormsecurity.com/files/176109/Arm-Mali-CSF-Overflow-Use-After-Free.html
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
- https://github.com/1337eng/arm_mali_open_source_drivers