junwen yang created HDFS-16007:
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Summary: Vulnerabilities found when serializing enum value
Key: HDFS-16007
URL: https://issues.apache.org/jira/browse/HDFS-16007
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: junwen yang
ReplicaState enum is using ordinal to conduct serialization and
deserialization, which is vulnerable to the order, to cause issues similar to
HDFS-15624.
To avoid it, either adding comments to let later developer not to change this
enum, or add index checking in the read and getState function to avoid index
out of bound error.
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