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https://issues.apache.org/jira/browse/ARTEMIS-4804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Galkin Alexey updated ARTEMIS-4804:
-----------------------------------
Description:
In [line
332|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
in file ScaleDownHandler.java variable *session* is initialized
ClientSession session = sessionFactory.createSession(user, password, true,
false, false, false, 0);
In [line
851|https://github.com/apache/activemq-artemis/blob/main/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ClientSessionFactoryImpl.java]
in ClientSessionFactoryImp.java, the code synchronizes with the sessions
collection and checks whether the current session is closed or whether the
client protocol manager is down. If the closed session or inactive client
protocol manager condition is met, the session is closed and null is returned
if (closed || !clientProtocolManager.isAlive()){
session.close();
return null;
}
The *session* variable could potentially be null
In [line
339|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
in file ScaleDownHandler.java potential null dereference occurs
session.start(xid, XAResource.TMNOFLAGS);
Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE.
Author Alexey Galkin.
was:
In [line
332|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
in file ScaleDownHandler.java variable *session* is initialized
ClientSession session = sessionFactory.createSession(user, password, true,
false, false, false, 0);
In [line
851|https://github.com/apache/activemq-artemis/blob/main/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ClientSessionFactoryImpl.java]
in ClientSessionFactoryImp.java, the code synchronizes with the sessions
collection and checks whether the current session is closed or whether the
client protocol manager is down. If the closed session or inactive client
protocol manager condition is met, the session is closed and null is returned
if (closed || !clientProtocolManager.isAlive()) {
session.close();
return null;
}
The *session* variable could potentially be null
In [line
339|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
in file ScaleDownHandler.java potential null dereference occurs
session.start(xid, XAResource.TMNOFLAGS);
Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE.
Author Alexey Galkin.
> Null dereferencing in ScaleDownHandler.java
> -------------------------------------------
>
> Key: ARTEMIS-4804
> URL: https://issues.apache.org/jira/browse/ARTEMIS-4804
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Reporter: Galkin Alexey
> Priority: Major
>
> In [line
> 332|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
> in file ScaleDownHandler.java variable *session* is initialized
> ClientSession session = sessionFactory.createSession(user, password, true,
> false, false, false, 0);
> In [line
> 851|https://github.com/apache/activemq-artemis/blob/main/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ClientSessionFactoryImpl.java]
> in ClientSessionFactoryImp.java, the code synchronizes with the sessions
> collection and checks whether the current session is closed or whether the
> client protocol manager is down. If the closed session or inactive client
> protocol manager condition is met, the session is closed and null is returned
> if (closed || !clientProtocolManager.isAlive()){
> session.close();
> return null;
> }
> The *session* variable could potentially be null
> In [line
> 339|https://github.com/apache/activemq-artemis/blob/main/artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ScaleDownHandler.java]
> in file ScaleDownHandler.java potential null dereference occurs
> session.start(xid, XAResource.TMNOFLAGS);
> Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE.
> Author Alexey Galkin.
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