undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/com/sun/net/httpserver/bugs/B6421581.java
+++ b/test/jdk/com/sun/net/httpserver/bugs/B6421581.java
@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2006, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 6421581
+ * @summary NPE while closing HttpExchange.getResonseBody()
+ */
+
+import com.sun.net.httpserver.*;
+import java.net.*;
+import java.io.*;
+import java.util.concurrent.*;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_EMPTY;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_CHUNKED;
+
+public class B6421581 {
+
+    static boolean error = false;
+    static int iter = 0;
+
+    public static void main(String[] args) throws Exception {
+                once();
+    }
+
+    public static void once() throws Exception {
+        InetSocketAddress inetAddress = new InetSocketAddress(
+            "localhost", 0);
+        HttpServer server = HttpServer.create(inetAddress, 5);
+        int port = server.getAddress().getPort();
+        ExecutorService e = (Executors.newFixedThreadPool(5));
+        server.setExecutor(e);
+        HttpContext context = server.createContext("/hello");
+        server.start();
+        context.setHandler(new HttpHandler() {
+            public void handle(HttpExchange msg) {
+                iter ++;
+                System.out.println("Got request");
+                switch (iter) {
+                case 1:
+                    /* close output stream without opening inpustream */
+                    /* chunked encoding */
+                    try {
+                        msg.sendResponseHeaders(200, RSPBODY_CHUNKED);
+                        OutputStream out = msg.getResponseBody();
+                        out.write("hello".getBytes());
+                        out.close();
+                    } catch(Exception e) {
+                        error = true;
+                    } finally {
+                        msg.close();
+                    }
+                    break;
+                case 2:
+                    /* close output stream without opening inpustream */
+                    /* fixed encoding */
+                    try {
+                        msg.sendResponseHeaders(200, 5);
+                        OutputStream out = msg.getResponseBody();
+                        out.write("hello".getBytes());
+                        out.close();
+                    } catch(Exception e) {
+                        error = true;
+                    } finally {
+                        msg.close();
+                    }
+                    break;
+                case 3:
+                    /* close exchange without opening any stream */
+                    try {
+                        msg.sendResponseHeaders(200, RSPBODY_EMPTY);
+                        msg.close();
+                    } catch(Exception e) {
+                        error = true;
+                    }
+                    break;
+                }
+            }
+        });
+
+        URL url = new URL("http://localhost:"+port+"/hello/url.text");
+        doURL(url);
+        doURL(url);
+        doURL(url);
+        e.shutdown();
+        e.awaitTermination(4, TimeUnit.SECONDS);
+        server.stop(0);
+        if (error) {
+            throw new RuntimeException ("test failed");
+        }
+    }
+
+    static void doURL (URL url) throws Exception {
+        InputStream is = url.openStream();
+        while (is.read() != -1) ;
+        is.close();
+    }
+}