int main(void)
{
	int fd;
	unsigned int i;
	unsigned int start = 0;
	unsigned int _gap = ~0;
	unsigned int gap = _gap / 8;
	struct qcedev_cipher_op_req req = { 0 };
	//char data[32] = { A };
	char *data;
	fd = open(dev, O_RDWR);
	if (fd < 0) {
		printf("Failed to open %s with errno %s\n", dev,
		       strerror(errno));
		return EXIT_FAILURE;

	}
	thread_func(start, start + gap, fd);

	sleep(1000000);
	return EXIT_FAILURE;
}
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.