void cJSON_Delete( cJSON *c )
{
	cJSON *next;

	while ( c ) {
		next = c->next;
		if ( ! ( c->type & cJSON_IsReference ) && c->child )
			cJSON_Delete( c->child );
		if ( ! ( c->type & cJSON_IsReference ) && c->valuestring )
			cJSON_free( c->valuestring );
		if ( c->string )
			cJSON_free( c->string );
		cJSON_free( c );
		c = next;
	}
}
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.