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/image/BufferedImage/SetData.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2023, 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.awt.Point;
+import java.awt.Transparency;
+import java.awt.color.ColorSpace;
+import java.awt.image.BandedSampleModel;
+import java.awt.image.BufferedImage;
+import java.awt.image.ComponentColorModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferFloat;
+import java.awt.image.DataBufferInt;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.util.Arrays;
+
+/**
+ * @test
+ * @author Martin Desruisseaux
+ */
+public final class SetData {
+    private static final int WIDTH = 3, HEIGHT = 2;
+
+    private static final int TRANSLATE_X = -2, TRANSLATE_Y = -3;
+
+    public static void main(final String[] args) {
+        testWithIntegers();
+        testWithFloats();
+        testTranslatedSource();
+    }
+
+    private static void testWithIntegers() {
+        var data   = new int[] {4, 8, 2, 7, 9, 1};
+        var empty  = new DataBufferInt(WIDTH*HEIGHT);
+        var buffer = new DataBufferInt(data, WIDTH*HEIGHT);
+        buffer = (DataBufferInt) writeAndRead(buffer, empty);
+        if (!Arrays.equals(data, buffer.getData())) {
+            throw new AssertionError("Pixel values are not equal.");
+        }
+    }
+
+    private static void testWithFloats() {
+        var data   = new float[] {0.4f, 0.8f, 0.2f, 0.7f, 0.9f, 0.1f};
+        var empty  = new DataBufferFloat(WIDTH*HEIGHT);
+        var buffer = new DataBufferFloat(data, WIDTH*HEIGHT);
+        buffer = (DataBufferFloat) writeAndRead(buffer, empty);
+        if (!Arrays.equals(data, buffer.getData())) {
+            throw new AssertionError("Pixel values are not equal.");
+        }
+    }
+
+    private static DataBuffer writeAndRead(DataBuffer buffer, DataBuffer empty) {
+        /*
+         * Prepare an image with all pixels initialized to zero.
+         */
+        var dt = buffer.getDataType();
+        var cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
+        var cm = new ComponentColorModel(cs, false, false, Transparency.OPAQUE, dt);
+        var sm = new BandedSampleModel(dt, WIDTH, HEIGHT, 1);
+        var wr = Raster.createWritableRaster(sm, empty, null);
+        var im = new BufferedImage(cm, wr, false, null);
+        /*
+         * Write data provided by the data buffer.
+         */
+        wr = Raster.createWritableRaster(sm, buffer, null);
+        im.setData(wr);
+        return im.getRaster().getDataBuffer();
+    }
+
+    private static void testTranslatedSource() {
+        var source = WritableRaster.createBandedRaster(
+                DataBuffer.TYPE_BYTE,
+                WIDTH  - TRANSLATE_X + 2,
+                HEIGHT - TRANSLATE_Y + 1, 1,
+                new Point(TRANSLATE_X, TRANSLATE_Y));
+
+        for (int y=0; y<HEIGHT; y++) {
+            for (int x=0; x<WIDTH; x++) {
+                source.setSample(x, y, 0, (y+1)*10 + (x+1));
+            }
+        }
+        var expected = new byte[] {
+            11, 12, 13,
+            21, 22, 23
+        };
+        var im = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_BYTE_GRAY);
+        im.setData(source);
+        var actual = ((DataBufferByte) im.getRaster().getDataBuffer()).getData();
+        if (!Arrays.equals(expected, actual)) {
+            throw new AssertionError("Pixel values are not equal.");
+        }
+    }
+}