native_handle* Parcel::readNativeHandle() const
{
 int numFds, numInts;
 status_t err;
    err = readInt32(&numFds);
 if (err != NO_ERROR) return 0;
    err = readInt32(&numInts);
 if (err != NO_ERROR) return 0;

    native_handle* h = native_handle_create(numFds, numInts);
 if (!h) {
 return 0;
 }

 
     for (int i=0 ; err==NO_ERROR && i<numFds ; i++) {
         h->data[i] = dup(readFileDescriptor());
        if (h->data[i] < 0) err = BAD_VALUE;
     }
     err = read(h->data + numFds, sizeof(int)*numInts);
     if (err != NO_ERROR) {
        native_handle_close(h);
        native_handle_delete(h);
        h = 0;
 }
 return h;
}

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.