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Posted to common-dev@hadoop.apache.org by "Ning Li (JIRA)" <ji...@apache.org> on 2008/09/25 02:15:44 UTC

[jira] Updated: (HADOOP-4271) Bug in FSInputChecker makes it possible to read from an invalid buffer

     [ https://issues.apache.org/jira/browse/HADOOP-4271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ning Li updated HADOOP-4271:
----------------------------

    Attachment: .data_testFSInputChecker.crc
                data_testFSInputChecker
                hadoop-4271.patch

Attached is the patch for this issue. A test is added to verify the fix. Two data files used by the test is also included. All tests pass with the patch.

> Bug in FSInputChecker makes it possible to read from an invalid buffer
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-4271
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4271
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: fs
>            Reporter: Ning Li
>            Priority: Minor
>         Attachments: .data_testFSInputChecker.crc, data_testFSInputChecker, hadoop-4271.patch
>
>
> Bug in FSInputChecker makes it possible to read from an invalid buffer. The buffer in FSInputChecker becomes invalid when readChecksumChunk is used to read a chunk to a user buffer directly. Currently, it's not marked as invalid in this case and may be read subsequently.

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