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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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59
test/hotspot/jtreg/runtime/stringtable/StringTableCorruptionTest.java Normal file
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/*
* Copyright (c) 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.
*/
/*
* @test
* @bug 8333356
* @summary Verify new error message for corrupting string table contents.
* @requires vm.flagless
* @modules java.base/java.lang:open
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @run driver StringTableCorruptionTest test
*/
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class StringTableCorruptionTest {
public static void main(String[] args) throws Exception {
if (args.length > 0) {
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder("--add-opens", "java.base/java.lang=ALL-UNNAMED",
"-XX:-CreateCoredumpOnCrash", "StringTableCorruptionTest");
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("Node hash code has changed possibly due to corruption of the contents.");
output.shouldNotHaveExitValue(0);
return;
}
Field f = String.class.getDeclaredField("value");
f.setAccessible(true);
f.set("s1".intern(), f.get("s2"));
for (int i = 0; i < 4_000_000; i++) {
("s_" + i).intern();
}
}
}