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/java/net/Socket/asyncClose/Socket_getOutputStream_write.java
+++ b/test/jdk/java/net/Socket/asyncClose/Socket_getOutputStream_write.java
@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2001, 2024, 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.
+ */
+
+/*
+ * Tests that a thread blocked in Socket.getOutputStream().write()
+ * throws a SocketException if the socket is asynchronously closed.
+ */
+import java.net.*;
+import java.io.*;
+import java.util.concurrent.CountDownLatch;
+
+public class Socket_getOutputStream_write extends AsyncCloseTest implements Runnable {
+    private final Socket s;
+    private final CountDownLatch latch;
+
+    public Socket_getOutputStream_write() {
+        latch = new CountDownLatch(1);
+        s = new Socket();
+    }
+
+    public String description() {
+        return "Socket.getOutputStream().write()";
+    }
+
+    public void run() {
+        try {
+            OutputStream out = s.getOutputStream();
+            byte b[] = new byte[8192];
+            latch.countDown();
+            for (;;) {
+                out.write(b);
+            }
+        } catch (SocketException se) {
+            if (latch.getCount() != 1) {
+                closed();
+            }
+        } catch (Exception e) {
+            failed(e.getMessage());
+        } finally {
+            if (latch.getCount() == 1) {
+                latch.countDown();
+            }
+        }
+    }
+
+    public AsyncCloseTest go() {
+        try {
+            InetAddress lh = InetAddress.getLocalHost();
+            try (ServerSocket ss = new ServerSocket(0, 0, lh)) {
+                s.connect(new InetSocketAddress(lh, ss.getLocalPort()));
+                try (Socket s2 = ss.accept()) {
+                    Thread thr = new Thread(this);
+                    thr.start();
+                    latch.await();
+                    Thread.sleep(1000);
+                    s.close();
+                    thr.join();
+                }
+
+                if (isClosed()) {
+                    return passed();
+                } else {
+                    return failed("Socket.getOutputStream().write() wasn't preempted");
+                }
+            }
+        } catch (Exception x) {
+            failed(x.getMessage());
+            throw new RuntimeException(x);
+        }
+    }
+}