Fix continuation websocket null pointer exception

sendbird · Sep 10, 2020 · de580d8 · de580d8
1 parent c419e48
commit de580d8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/core/websockets.c b/core/websockets.c
@@ -193,7 +193,8 @@ static struct uwsgi_buffer *uwsgi_websockets_parse(struct wsgi_request *wsgi_req
 	uwsgi_buffer_append(ub, "\0", 1);
 	return ub;
 error:
-	uwsgi_buffer_destroy(ub);
+	/// avoid segfault
+	if (ub) uwsgi_buffer_destroy(ub);
 	if (uwsgi.websockets_continuation_buffer != NULL && ub != uwsgi.websockets_continuation_buffer) {
 		uwsgi_buffer_destroy(uwsgi.websockets_continuation_buffer);
 	}