The hardware security module of Mate 9 and Mate 9 Pro Huawei smart phones with the versions earlier before MHA-AL00BC00B156 versions earlier before MHA-CL00BC00B156 versions earlier before MHA-DL00BC00B156 versions earlier before MHA-TL00BC00B156 versions earlier before LON-AL00BC00B156 versions earlier before LON-CL00BC00B156 versions earlier before LON-DL00BC00B156 versions earlier before LON-TL00BC00B156 has a arbitrary memory read/write vulnerability due to the input parameters validation. An attacker with the root privilege of the Android system could exploit this vulnerability to read and write memory data anywhere or execute arbitrary code in the TrustZone.