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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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85
test/hotspot/jtreg/runtime/Thread/libAsyncExceptionOnMonitorEnter.cpp Normal file
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/*
* Copyright (c) 2022, 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.
*/
#include <string.h>
#include "jvmti.h"
extern "C" {
static jvmtiEnv* jvmti = nullptr;
static jrawMonitorID monitor;
JNIEXPORT jint JNICALL
Java_AsyncExceptionOnMonitorEnter_createRawMonitor(JNIEnv *jni, jclass cls) {
jvmtiError err;
char name[32];
snprintf(name, sizeof(name), "MyRawMonitor");
err = jvmti->CreateRawMonitor(name, &monitor);
if (err != JVMTI_ERROR_NONE) {
printf("CreateRawMonitor unexpected error: (%d)\n", err);
}
return err;
}
JNIEXPORT jint JNICALL
Java_AsyncExceptionOnMonitorEnter_enterRawMonitor(JNIEnv *jni, jclass cls) {
jvmtiError err;
err = jvmti->RawMonitorEnter(monitor);
if (err != JVMTI_ERROR_NONE) {
printf("RawMonitorEnter unexpected error: (%d)\n", err);
}
return err;
}
JNIEXPORT jint JNICALL
Java_AsyncExceptionOnMonitorEnter_exitRawMonitor(JNIEnv *jni, jclass cls) {
jvmtiError err;
err = jvmti->RawMonitorExit(monitor);
if (err != JVMTI_ERROR_NONE) {
printf("RawMonitorExit unexpected error: (%d)\n", err);
}
return err;
}
JNIEXPORT void JNICALL
Java_AsyncExceptionOnMonitorEnter_destroyRawMonitor(JNIEnv *jni, jclass cls) {
jvmtiError err;
err = jvmti->DestroyRawMonitor(monitor);
// Almost always worker2 will be stopped before being able to release the
// JVMTI monitor so just ignore those errors.
if (err != JVMTI_ERROR_NONE && err != JVMTI_ERROR_NOT_MONITOR_OWNER) {
printf("DestroyRawMonitor unexpected error: (%d)\n", err);
}
}
JNIEXPORT jint JNICALL
Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
// create JVMTI environment
if (jvm->GetEnv((void **) (&jvmti), JVMTI_VERSION) != JNI_OK) {
return JNI_ERR;
}
return JNI_OK;
}
}