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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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62
test/jdk/java/lang/ProcessBuilder/LinuxFDInfo.java Normal file
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/*
* Copyright (c) 2026, 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.
*/
/**
* Accessor for Native calls to get information about File Descriptors.
* If it's a pipe and its Inode number.
*/
public class LinuxFDInfo {
static {
System.loadLibrary("LinuxFDInfo");
}
// Maximum file descriptor to probe for being a pipe,
private final static int MAX_FD = 100;
// A simple main to print the pipes in this process and their Inode value
public static void main() {
for (int fd = 0; fd < MAX_FD; fd++) {
long inode = getPipeInodeNum(fd);
if (inode != 0) {
System.out.printf("fd: %d, inode: 0x%08x\n", fd, inode);
}
}
}
// Parse the output from main into a long array of the fd, and Inode.
public static FdAndInode parseFdAndInode(String s) {
String[] args = s.split(",");
return new FdAndInode(Integer.parseUnsignedInt(args[0].split(":")[1].trim()),
Long.parseUnsignedLong(args[1].split(":")[1].trim().substring(2), 16));
}
/**
* Return the inode number for the FD, if it is a pipe.
* @param fd file descriptor
* @return the Inode number.
*/
public static native long getPipeInodeNum(int fd);
public record FdAndInode(int fd, long inode) {}
}