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/nio/channels/Selector/OutOfBand.java
+++ b/test/jdk/java/nio/channels/Selector/OutOfBand.java
@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2010, 2021, 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 6213702
+ * @summary OOB data causes a SocketChannel, with OOBINLINE disabled, to be selected
+ */
+
+/* @test
+ * @requires (os.family == "windows")
+ * @run main/othervm -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.WindowsSelectorProvider OutOfBand
+ */
+
+import java.net.*;
+import java.nio.ByteBuffer;
+import java.nio.channels.*;
+import java.io.IOException;
+
+public class OutOfBand {
+
+    public static void main(String[] args) throws Exception {
+        ServerSocketChannel ssc = null;
+        SocketChannel sc = null;
+        Selector sel = null;
+        Socket s = null;
+
+        try {
+            // establish loopback connection.
+            ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0));
+            s = new Socket(InetAddress.getLocalHost(),
+                           ssc.socket().getLocalPort());
+            sc = ssc.accept();
+
+            sel = Selector.open();
+            sc.configureBlocking(false);
+            sc.register(sel, SelectionKey.OP_READ);
+
+            // OOB data should be disabled by default
+            if (sc.socket().getOOBInline())
+                throw new RuntimeException("SO_OOBINLINE enabled");
+            test(s, false, 0,   0,   sel);
+            test(s, false, 512, 0,   sel);
+            test(s, false, 0,   512, sel);
+            test(s, false, 512, 512, sel);
+
+            // enable SO_OOBINLINE
+            sc.socket().setOOBInline(true);
+
+            // OOB data should be received
+            test(s, true, 0,   0,   sel);
+            test(s, true, 512, 0,   sel);
+            test(s, true, 0,   512, sel);
+            test(s, true, 512, 512, sel);
+
+        } finally {
+            if (sel != null) sel.close();
+            if (sc != null) sc.close();
+            if (ssc != null) ssc.close();
+            if (s != null) sc.close();
+        }
+    }
+
+    static void test(Socket s, boolean urgentExpected,
+                     int bytesBefore, int bytesAfter,
+                     Selector sel)
+        throws IOException
+    {
+        // send data
+        int bytesExpected = 0;
+        if (bytesBefore > 0) {
+            s.getOutputStream().write(new byte[bytesBefore]);
+            bytesExpected += bytesBefore;
+        }
+        s.sendUrgentData(0xff);
+        if (urgentExpected)
+            bytesExpected++;
+        if (bytesAfter > 0) {
+            s.getOutputStream().write(new byte[bytesAfter]);
+            bytesExpected += bytesAfter;
+        }
+
+        // receive data, checking for spurious wakeups and reads
+        int spuriousWakeups = 0;
+        int spuriousReads = 0;
+        int bytesRead = 0;
+        ByteBuffer bb = ByteBuffer.allocate(100);
+        for (;;) {
+            int n = sel.select(2000);
+            if (n == 0) {
+                if (bytesRead == bytesExpected) {
+                    System.out.format("Selector wakeups %d\tSpurious reads %d%n",
+                            spuriousWakeups, spuriousReads);
+                    return;
+                }
+                if (++spuriousWakeups >= 3)
+                    throw new RuntimeException("Selector appears to be spinning" +
+                        " or data not received");
+                continue;
+            }
+            if (n > 1)
+                throw new RuntimeException("More than one key selected????");
+            SelectionKey key = sel.selectedKeys().iterator().next();
+            bb.clear();
+            n = ((SocketChannel)key.channel()).read(bb);
+            if (n == 0) {
+                if (++spuriousReads >=3)
+                    throw new RuntimeException("Too many spurious reads");
+            } else {
+                bytesRead += n;
+                if (bytesRead > bytesExpected)
+                    throw new RuntimeException("Received more than expected");
+            }
+            sel.selectedKeys().clear();
+        }
+    }
+}