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.

test/jdk/java/nio/channels/Selector/LotsOfUpdatesTest.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017, 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 6824477
+ * @summary Selector.select can fail with IOException "Invalid argument" on
+ *     Solaris if maximum number of file descriptors is less than 10000
+ * @requires (os.family != "windows")
+ * @library /test/lib
+ * @build jdk.test.lib.Utils
+ *        jdk.test.lib.Asserts
+ *        jdk.test.lib.JDKToolFinder
+ *        jdk.test.lib.JDKToolLauncher
+ *        jdk.test.lib.Platform
+ *        jdk.test.lib.process.*
+ *        LotsOfUpdates
+ * @run main LotsOfUpdatesTest
+ */
+
+import jdk.test.lib.process.ProcessTools;
+
+public class LotsOfUpdatesTest {
+
+    //hard limit needs to be less than 10000 for this bug
+    private static final String ULIMIT_SET_CMD = "ulimit -n 2048";
+
+    private static final String JAVA_CMD = ProcessTools.getCommandLine(
+            ProcessTools.createLimitedTestJavaProcessBuilder(LotsOfUpdates.class.getName()));
+
+    public static void main(String[] args) throws Throwable {
+        ProcessTools.executeCommand("sh", "-c", ULIMIT_SET_CMD + " && " + JAVA_CMD)
+                    .shouldHaveExitValue(0);
+    }
+}