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https://issues.apache.org/jira/browse/ZOOKEEPER-2186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537663#comment-14537663
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Hadoop QA commented on ZOOKEEPER-2186:
--------------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12731857/ZOOKEEPER-2186.patch
against trunk revision 1678645.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 2.0.3)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2685//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2685//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2685//console
This message is automatically generated.
> QuorumCnxManager#receiveConnection may crash with random input
> --------------------------------------------------------------
>
> Key: ZOOKEEPER-2186
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2186
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.4.6, 3.5.0
> Reporter: Raul Gutierrez Segales
> Assignee: Raul Gutierrez Segales
> Fix For: 3.4.7, 3.5.1, 3.6.0
>
> Attachments: ZOOKEEPER-2186.patch
>
>
> This will allocate an arbitrarily large byte buffer (and try to read it!):
> {code}
> public boolean receiveConnection(Socket sock) {
> Long sid = null;
> ...
> sid = din.readLong();
> // next comes the #bytes in the remainder of the message
>
> int num_remaining_bytes = din.readInt();
> byte[] b = new byte[num_remaining_bytes];
> // remove the remainder of the message from din
>
> int num_read = din.read(b);
> {code}
> This will crash the QuorumCnxManager thread, so the cluster will keep going
> but future elections might fail to converge (ditto for leaving/joining
> members).
> Patch coming up in a bit.
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