The GPU driver of Mate 9 Huawei smart phones with software before MHA-AL00B 8.0.0.334(C00) and Mate 9 Pro Huawei smart phones with software before LON-AL00B 8.0.0.334(C00) has a memory double free vulnerability. An attacker tricks a user into installing a malicious application, and the application can call special API, which triggers double free and causes a system crash or arbitrary code execution.

The camerafs driver in Mate 9 Versions earlier than MHA-AL00BC00B173 has buffer overflow vulnerability. An attacker tricks a user into installing a malicious application which has the system privilege of the Android system and sends a specific parameter to the driver of the smart phone, causing a system crash or privilege escalation.

The Trusted Execution Environment (TEE) module driver of Mate 9 and Mate 9 Pro smart phones with software versions earlier than MHA-AL00BC00B221 and versions earlier than LON-AL00BC00B221 has a use after free (UAF) vulnerability. An attacker tricks a user into installing a malicious application, and the application can start multiple threads and try to create and free specific memory, which could triggers access memory after free it and causes a system crash or arbitrary code execution.