int xtables_lock_or_exit(int wait, struct timeval *wait_interval)
{
	int lock = xtables_lock(wait, wait_interval);

	if (lock == XT_LOCK_FAILED) {
		xtables_free_opts(1);
		exit(RESOURCE_PROBLEM);
	}

	if (lock == XT_LOCK_BUSY) {
		fprintf(stderr, "Another app is currently holding the xtables lock. ");
		if (wait == 0)
			fprintf(stderr, "Perhaps you want to use the -w option?\n");
		else
			fprintf(stderr, "Stopped waiting after %ds.\n", wait);
		xtables_free_opts(1);
		exit(RESOURCE_PROBLEM);
	}

	return lock;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.