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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/hotspot/jtreg/runtime/classFileParserBug/TestBadPackageWithInterface.java Normal file
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/*
* Copyright (c) 2020, 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 8245487
* @summary Check that if the VM rejects classes from packages starting with "java/", it will exit
* cleanly after InstanceKlass::verify_on(), and not leave freed memory in _local_interfaces.
* @requires vm.flagless
* @library /test/lib
* @compile BadClassPackage.jasm
* @run driver TestBadPackageWithInterface
*/
import java.io.InputStream;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class TestBadPackageWithInterface {
public static void main(String args[]) throws Throwable {
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(
"-cp", System.getProperty("test.classes"),
"-XX:+UnlockDiagnosticVMOptions",
"-XX:+VerifyBeforeExit", MyLoader.class.getName());
OutputAnalyzer oa = new OutputAnalyzer(pb.start());
oa.shouldHaveExitValue(0);
}
static class MyLoader extends ClassLoader {
public static void main(String args[]) throws Throwable {
try {
ClassLoader loader = TestBadPackageWithInterface.class.getClassLoader();
InputStream in = loader.getResourceAsStream("java/lang/BadClassPackage.class");
byte[] bytes = in.readAllBytes();
MyLoader myLoader = new MyLoader();
myLoader.defineClass(bytes, 0, bytes.length);
}
catch (SecurityException expected) {
System.out.println("Expected ==================================================");
expected.printStackTrace(System.out);
System.out.println("==================================================");
}
}
}
}