void cJSON_InitHooks(cJSON_Hooks* hooks)
{
	if ( ! hooks ) {
		/* Reset hooks. */
		cJSON_malloc = malloc;
		cJSON_free = free;
		return;
	}
	cJSON_malloc = (hooks->malloc_fn) ? hooks->malloc_fn : malloc;
	cJSON_free = (hooks->free_fn) ? hooks->free_fn : free;
}
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.