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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
commit 0a580b313d
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test/jdk/java/lang/RuntimeTests/exec/Duped.java Normal file
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/*
* Copyright (c) 1999, 2023, 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 4180429
@summary Lossage in dup2 if System.in is closed.
@requires vm.flagless
@run main/othervm Duped
*/
import java.io.BufferedReader;
import java.io.PrintStream;
import java.io.InputStreamReader;
import java.io.File;
public class Duped {
public static class Echo {
public static void main(String args[]) throws Exception {
StringBuffer s = new StringBuffer();
int c;
while ((c = System.in.read()) != -1)
s.append((char)c);
System.out.println(s);
}
}
public static void main(String[] args) throws Exception {
String command =
System.getProperty("java.home") +
File.separator +
"bin" +
File.separator +
"java -classpath " +
System.getProperty("java.class.path") +
" Duped$Echo";
if (args.length == 1 && args[0].equals("-dont")) {
/*
* To quickly check that this test is working when it is
* supposed to, just run it with -dont and it shouldn't
* complain at all.
*/
} else {
/*
* In normal runs we just close in, and that causes
* lossage on fork.
*/
System.in.close();
}
Process p = Runtime.getRuntime().exec(command);
PrintStream out = new PrintStream(p.getOutputStream());
out.println(HELLO);
out.close();
BufferedReader in =
new BufferedReader(new InputStreamReader(p.getInputStream()));
String read = in.readLine();
if (!HELLO.equals(read)) {
throw new Exception("Failed, read ``" + read + "''");
}
}
static final String HELLO = "Hello, world!";
}