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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/awt/FontClass/NaNTransform.java Normal file
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/*
* Copyright (c) 2015, 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 6357987 6513889 8023213
* @summary Font/Text APIs should not crash if transform includes NaN
* @author prr
* @run main NaNTransform
*/
import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;
public class NaNTransform {
private static void testShape(String msg, Shape s) {
if (!(new Area(s).isEmpty())) {
System.out.println(msg+"="+s);
throw new RuntimeException("Warning: expected this to be empty");
}
}
public static void main(String [] args) {
float NaN=0f/0f;
float[] vals = new float[6];
for (int i=0;i<6;i++) vals[i]=NaN;
AffineTransform nanTX = new AffineTransform(vals);
BufferedImage bi = new BufferedImage(1,1,BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = bi.createGraphics();
g2d.rotate(NaN);
Font font = g2d.getFont();
FontMetrics fm = g2d.getFontMetrics();
FontRenderContext frc = g2d.getFontRenderContext();
int adv = fm.stringWidth("ABCDEF");
if (adv != 0) {
System.out.println("strWidth="+adv);
throw new RuntimeException("Warning: expected this to be zero");
}
testShape("strBounds", font.getStringBounds("12345", frc));
TextLayout tl = new TextLayout("Some text", font, frc);
testShape("tl PixelBounds 1", tl.getPixelBounds(frc, 20, 10));
testShape("tl PixelBounds 2", tl.getPixelBounds(frc, NaN, NaN));
testShape("tl Outline", tl.getOutline(nanTX));
GlyphVector gv = font.createGlyphVector(frc, "abcdef");
testShape("gv PixelBounds 1", gv.getPixelBounds(frc, 0, 0));
testShape("gv PixelBounds 2", gv.getPixelBounds(frc, NaN, NaN));
testShape("gv Outline", gv.getOutline(NaN, NaN));
gv.setGlyphTransform(0, nanTX);
testShape("gv PixelBounds 1A", gv.getPixelBounds(frc, 0, 0));
testShape("gv PixelBounds 2A", gv.getPixelBounds(frc, NaN, NaN));
testShape("gv Outline A", gv.getOutline(NaN, NaN));
g2d.drawString("BOO!", 20, 20);
Font nanFont;
for (int i=0; i<5000; i++) {
nanFont = font.deriveFont(Float.NaN);
g2d.setFont(nanFont);
g2d.drawString("abc", 20, 20);
}
System.out.println("Test passed (no crash)");
}
}