[DO NOT MERGE] Fix heap buffer overflow for releaseSecureStops. am: fa237c4f

    // and the drm service. The clearkey implementation consists of:

    //    count - number of secure stops

    //    list of fixed length secure stops

    size_t countBufferSize = sizeof(uint32_t);

    if (input.size() < countBufferSize) {

        // SafetyNet logging

        android_errorWriteLog(0x534e4554, "144766455");

        return Status::BAD_VALUE;

    }

    uint32_t count = 0;

    sscanf(reinterpret_cast<char*>(input.data()), "%04" PRIu32, &count);