Michael Han created ZOOKEEPER-2498:
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Summary: Potential resource leak in C client when processing
unexpected / out of order response
Key: ZOOKEEPER-2498
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2498
Project: ZooKeeper
Issue Type: Bug
Components: c client
Affects Versions: 3.5.2, 3.4.8
Reporter: Michael Han
Assignee: Michael Han
Fix For: 3.4.9, 3.5.3
In C client, we use reference counting to decide if a given zh handle can be
destroyed or not. This requires we always make sure to call api_prolog (which
increment the counter) and api_epilog (which decrease the counter) in pairs,
for a given call context.
In zookeeper_process, there is a place where the code will return without
invoking api_epilog, which would lead to potential zh resource leak.
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