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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/execstack/TestCheckJDK.java Normal file
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/*
* Copyright (c) 2017, 2022, 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 Testexecstack.java
* @summary Searches for all libraries in test VM and checks that they
* have the noexecstack bit set.
* @requires (os.family == "linux")
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* TestCheckJDK
*/
import jdk.test.lib.Asserts;
import jdk.test.whitebox.WhiteBox;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class TestCheckJDK {
static boolean testPassed = true;
private static final WhiteBox WB = WhiteBox.getWhiteBox();
static void checkExecStack(Path file) {
String filename = file.toString();
Path parent = file.getParent();
if ((parent.endsWith("bin") && !filename.endsWith(".diz")) || filename.endsWith(".so")) {
if (!WB.checkLibSpecifiesNoexecstack(filename)) {
System.out.println("Library does not have the noexecstack bit set: " + filename);
testPassed = false;
}
}
}
public static void main(String[] args) throws Throwable {
String vmInstallDir = System.getProperty("java.home");
Files.walk(Paths.get(vmInstallDir)).filter(Files::isRegularFile).forEach(TestCheckJDK::checkExecStack);
Asserts.assertTrue(testPassed,
"The tested VM contains libs that don't have the noexecstack " +
"bit set. They must be linked with -z,noexecstack.");
}
}