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.

test/jdk/java/awt/datatransfer/ImageTransferCrashTest.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2002, 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 4513976
+ * @summary tests that inter-JVM image transfer doesn't cause crash
+ * @key headful
+ * @library /test/lib
+ * @run main ImageTransferCrashTest
+ */
+
+import java.awt.Toolkit;
+import java.awt.datatransfer.Clipboard;
+import java.awt.datatransfer.ClipboardOwner;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.StringSelection;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.awt.image.BufferedImage;
+import java.awt.image.WritableRaster;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+public class ImageTransferCrashTest implements ClipboardOwner {
+    static final Clipboard clipboard =
+            Toolkit.getDefaultToolkit().getSystemClipboard();
+    final Transferable textTransferable = new StringSelection("TEXT");
+    public static final int CLIPBOARD_DELAY = 10;
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 0) {
+            ImageTransferCrashTest imageTransferCrashTest = new ImageTransferCrashTest();
+            imageTransferCrashTest.initialize();
+            return;
+        }
+        final ClipboardOwner clipboardOwner = (clip, contents) -> System.exit(0);
+        final int width = 100;
+        final int height = 100;
+        final BufferedImage bufferedImage =
+                new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        final WritableRaster writableRaster =
+                bufferedImage.getWritableTile(0, 0);
+        final int[] color = new int[]{0x80, 0x80, 0x80};
+        for (int i = 0; i < width; i++) {
+            for (int j = 0; j < height; j++) {
+                writableRaster.setPixel(i, j, color);
+            }
+        }
+        bufferedImage.releaseWritableTile(0, 0);
+
+        final Transferable imageTransferable = new Transferable() {
+            final DataFlavor[] flavors = new DataFlavor[]{
+                    DataFlavor.imageFlavor};
+
+            public DataFlavor[] getTransferDataFlavors() {
+                return flavors;
+            }
+
+            public boolean isDataFlavorSupported(DataFlavor df) {
+                return DataFlavor.imageFlavor.equals(df);
+            }
+
+            public Object getTransferData(DataFlavor df)
+                    throws UnsupportedFlavorException {
+                if (!isDataFlavorSupported(df)) {
+                    throw new UnsupportedFlavorException(df);
+                }
+                return bufferedImage;
+            }
+        };
+        clipboard.setContents(imageTransferable, clipboardOwner);
+        final Object o = new Object();
+        synchronized (o) {
+            try {
+                o.wait();
+            } catch (InterruptedException ie) {
+                ie.printStackTrace();
+            }
+        }
+        System.out.println("Test Pass!");
+    }
+
+    public void initialize() throws Exception {
+        clipboard.setContents(textTransferable, this);
+        ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(
+                ImageTransferCrashTest.class.getName(),
+                "child"
+        );
+
+        Process process = ProcessTools.startProcess("Child", pb);
+        OutputAnalyzer outputAnalyzer = new OutputAnalyzer(process);
+
+        if (!process.waitFor(15, TimeUnit.SECONDS)) {
+            process.destroyForcibly();
+            throw new TimeoutException("Timed out waiting for Child");
+        }
+
+        outputAnalyzer.shouldHaveExitValue(0);
+    }
+
+    public void lostOwnership(Clipboard clip, Transferable contents) {
+        final Runnable r = () -> {
+            while (true) {
+                try {
+                    Thread.sleep(CLIPBOARD_DELAY);
+                    Transferable t = clipboard.getContents(null);
+                    t.getTransferData(DataFlavor.imageFlavor);
+                } catch (IllegalStateException e) {
+                    e.printStackTrace();
+                    System.err.println("clipboard is not prepared yet");
+                    continue;
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                break;
+            }
+            clipboard.setContents(textTransferable, null);
+        };
+        final Thread t = new Thread(r);
+        t.start();
+    }
+}