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/lang/instrument/NativeMethodPrefixApp.java
+++ b/test/jdk/java/lang/instrument/NativeMethodPrefixApp.java
@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2005, 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.
+ */
+
+
+import java.nio.file.Path;
+
+import bootreporter.*;
+import jdk.test.lib.helpers.ClassFileInstaller;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+/*
+ * @test
+ * @bug 6263319 8334167
+ * @summary test setNativeMethodPrefix
+ * @requires ((vm.opt.StartFlightRecording == null) | (vm.opt.StartFlightRecording == false)) & ((vm.opt.FlightRecorder == null) | (vm.opt.FlightRecorder == false))
+ * @modules java.instrument
+ * @library /test/lib
+ * @build bootreporter.StringIdCallback bootreporter.StringIdCallbackReporter
+ *        asmlib.Instrumentor NativeMethodPrefixAgent
+ * @run main/native NativeMethodPrefixApp roleDriver
+ */
+public class NativeMethodPrefixApp implements StringIdCallback {
+
+    // we expect this native method, which is part of this test's application,
+    // to be instrumented and invoked
+    static String goldenNativeMethodName = "fooBarNativeMethod";
+    static boolean[] gotIt = {false, false, false};
+    private static final String testLibraryPath = System.getProperty("test.nativepath");
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 1) {
+            if (!"roleDriver".equals(args[0])) {
+                throw new Exception("unexpected program argument: " + args[0]);
+            }
+            // launch the NativeMethodPrefixApp java process after creating the necessary
+            // infrastructure
+            System.out.println("creating agent jar");
+            final Path agentJar = createAgentJar();
+            System.out.println("launching app, with javaagent jar: " + agentJar);
+            launchApp(agentJar);
+        } else {
+            System.err.println("running app");
+            System.loadLibrary("NativeMethodPrefix"); // load the native library
+            new NativeMethodPrefixApp().run();
+        }
+    }
+
+    private static Path createAgentJar() throws Exception {
+        final Path agentJar = Path.of("NativeMethodPrefixAgent.jar");
+        final String manifest = """
+                Manifest-Version: 1.0
+                Premain-Class: NativeMethodPrefixAgent
+                Can-Retransform-Classes: true
+                Can-Set-Native-Method-Prefix: true
+                """;
+        System.out.println("Manifest is:\n" + manifest);
+        // create the agent jar
+        ClassFileInstaller.writeJar(agentJar.getFileName().toString(),
+                ClassFileInstaller.Manifest.fromString(manifest),
+                "NativeMethodPrefixAgent",
+                "asmlib.Instrumentor");
+        return agentJar;
+    }
+
+    private static void launchApp(final Path agentJar) throws Exception {
+        final OutputAnalyzer oa = ProcessTools.executeTestJava(
+                "-javaagent:" + agentJar.toString(),
+                "-Djava.library.path=" + testLibraryPath,
+                NativeMethodPrefixApp.class.getName());
+        oa.shouldHaveExitValue(0);
+        // make available stdout/stderr in the logs, even in case of successful completion
+        oa.reportDiagnosticSummary();
+    }
+
+    private void run() throws Exception {
+        StringIdCallbackReporter.registerCallback(this);
+        System.err.println("start");
+        final long val = new Dummy().callSomeNativeMethod();
+        if (val != 42) {
+            throw new RuntimeException("unexpected return value " + val
+                    + " from native method, expected 42");
+        }
+
+        NativeMethodPrefixAgent.checkErrors();
+
+        for (int i = 0; i < gotIt.length; ++i) {
+            if (!gotIt[i]) {
+                throw new Exception("ERROR: Missing callback for transform " + i);
+            }
+        }
+    }
+
+    @Override
+    public void tracker(String name, int id) {
+        if (name.endsWith(goldenNativeMethodName)) {
+            System.err.println("Tracked #" + id + ": MATCHED -- " + name);
+            gotIt[id] = true;
+        } else {
+            System.err.println("Tracked #" + id + ": " + name);
+        }
+    }
+
+    private static class Dummy {
+
+        private long callSomeNativeMethod() {
+            return fooBarNativeMethod();
+        }
+
+        private native long fooBarNativeMethod();
+    }
+}