undefect. CWE-407 — 63 sites patched across 27 ecosystems

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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/util/zip/ZipFile/ReleaseInflater.java
+++ b/test/jdk/java/util/zip/ZipFile/ReleaseInflater.java
@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 1999, 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 4214795
+ * @summary Make sure the same inflater will only be recycled
+ *          once.
+ * @run junit ReleaseInflater
+ */
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ReleaseInflater {
+
+    // ZIP file produced in this test
+    private Path zip = Path.of("release-inflater.zip");
+
+    /**
+     * Create a sample ZIP file for use by tests
+     * @param name name of the ZIP file to create
+     * @return a sample ZIP file
+     * @throws IOException if an unexpected IOException occurs
+     */
+    @BeforeEach
+    public void setUp() throws IOException {
+        try (ZipOutputStream zo = new ZipOutputStream(Files.newOutputStream(zip))) {
+            zo.putNextEntry(new ZipEntry("file.txt"));
+            zo.write("helloworld".getBytes(StandardCharsets.UTF_8));
+        }
+    }
+
+    /**
+     * Delete the ZIP and JAR files produced after each test method
+     * @throws IOException if an unexpected IOException occurs
+     */
+
+    @AfterEach
+    public void cleanup() throws IOException {
+        Files.deleteIfExists(zip);
+    }
+
+    /**
+     * Verify that the same Inflater is not recycled across input streams
+     * @throws IOException if an unexpected IOException occurs
+     */
+    @Test
+    public void recycleInflaterOnlyOnce() throws IOException {
+        try (ZipFile zf = new ZipFile(zip.toFile())) {
+            ZipEntry e = zf.getEntry("file.txt");
+
+            InputStream in1 = zf.getInputStream(e);
+            // close the stream, the inflater will be released
+            in1.close();
+            // close the stream again, should be no-op
+            in1.close();
+
+            // create two new streams, allocating inflaters
+            InputStream in2 = zf.getInputStream(e);
+            InputStream in3 = zf.getInputStream(e);
+
+            // check to see if they influence each other
+            assertEquals(in2.read(), in3.read(), "Stream is corrupted!");
+        }
+    }
+}