int Track::Info::Copy(Info& dst) const {
 if (&dst == this)
 return 0;

  dst.type = type;
  dst.number = number;
  dst.defaultDuration = defaultDuration;
  dst.codecDelay = codecDelay;
  dst.seekPreRoll = seekPreRoll;
  dst.uid = uid;
  dst.lacing = lacing;
  dst.settings = settings;


 if (int status = CopyStr(&Info::nameAsUTF8, dst))
 return status;

 if (int status = CopyStr(&Info::language, dst))
 return status;

 if (int status = CopyStr(&Info::codecId, dst))
 return status;

 if (int status = CopyStr(&Info::codecNameAsUTF8, dst))
 return status;

 if (codecPrivateSize > 0) {
 if (codecPrivate == NULL)
 return -1;

 if (dst.codecPrivate)
 return -1;

 if (dst.codecPrivateSize != 0)
 return -1;

    dst.codecPrivate = SafeArrayAlloc<unsigned char>(1, codecPrivateSize);

 if (dst.codecPrivate == NULL)
 return -1;

    memcpy(dst.codecPrivate, codecPrivate, codecPrivateSize);
    dst.codecPrivateSize = codecPrivateSize;
 }

 return 0;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.