File _service:tar_scm:CVE-2021-42340.patch of Package tomcat

From cd2150ff02c592c1ab6da219302ff80f589559fe Mon Sep 17 00:00:00 2001
From: remm <remm@apache.org>
Date: Thu, 28 Oct 2021 11:32:47 +0800
Subject: [PATCH] Close WebConnection

---
 .../tomcat/websocket/server/WsHttpUpgradeHandler.java     | 3 +++
 webapps/docs/changelog.xml                                | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/java/org/apache/tomcat/websocket/server/WsHttpUpgradeHandler.java b/java/org/apache/tomcat/websocket/server/WsHttpUpgradeHandler.java
index 5dd1c5a..703f17a 100644
--- a/java/org/apache/tomcat/websocket/server/WsHttpUpgradeHandler.java
+++ b/java/org/apache/tomcat/websocket/server/WsHttpUpgradeHandler.java
@@ -99,6 +99,7 @@ public class WsHttpUpgradeHandler implements InternalHttpUpgradeHandler {
 
     @Override
     public void init(WebConnection connection) {
+	this.connection = connection;
         if (ep == null) {
             throw new IllegalStateException(
                     sm.getString("wsHttpUpgradeHandler.noPreInit"));
@@ -203,7 +204,9 @@ public class WsHttpUpgradeHandler implements InternalHttpUpgradeHandler {
 
     @Override
     public void destroy() {
+	WebConnection connection = this.connection;
         if (connection != null) {
+            this.connection = null;
             try {
                 connection.close();
             } catch (Exception e) {
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index a7bb52c..a97e15d 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -338,6 +338,14 @@
       </fix>
     </changelog>
   </subsection>
+  <subsection name="WebSocket">
+    <changelog>
+      <fix>
+	The internal upgrade handler should close the associated
+        <code>WebConnection</code> on destroy. (remm)
+      </fix>
+    </changelog>
+  </subsection>
   <subsection name="Web applications">
     <changlog>
       <fix>
-- 
2.27.0