Fix for corruption when numFds or numInts is too large.

    const size_t numFds  = buf[6];

    const size_t numInts = buf[7];

    const size_t maxNumber = UINT_MAX / sizeof(int);

    if (numFds >= maxNumber || numInts >= (maxNumber - 8)) {

        width = height = stride = format = usage = 0;

        handle = NULL;

        ALOGE("unflatten: numFds or numInts is too large: %d, %d",

                numFds, numInts);

        return BAD_VALUE;

    }

    const size_t sizeNeeded = (8 + numInts) * sizeof(int);

    if (size < sizeNeeded) return NO_MEMORY;

    size_t fdCountNeeded = 0;

    size_t fdCountNeeded = numFds;

    if (count < fdCountNeeded) return NO_MEMORY;

    if (handle) {

        format = buf[4];

        usage  = buf[5];

        native_handle* h = native_handle_create(numFds, numInts);

        if (!h) {

            width = height = stride = format = usage = 0;

            handle = NULL;

            ALOGE("unflatten: native_handle_create failed");

            return NO_MEMORY;

        }

        memcpy(h->data,          fds,     numFds*sizeof(int));

        memcpy(h->data + numFds, &buf[8], numInts*sizeof(int));

        handle = h;