char *cJSON_PrintBuffered(cJSON *item,int prebuffer,int fmt)
{
	printbuffer p;
	p.buffer=(char*)cJSON_malloc(prebuffer);
	p.length=prebuffer;
	p.offset=0;
	return print_value(item,0,fmt,&p);
}
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.