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Posted to dev@qpid.apache.org by "Attila Kun (Jira)" <ji...@apache.org> on 2020/04/15 19:53:00 UTC

[jira] [Updated] (PROTON-2194) Incorrect memory deallocation

     [ https://issues.apache.org/jira/browse/PROTON-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Attila Kun updated PROTON-2194:
-------------------------------
    Attachment: schannel_exception.png

> Incorrect memory deallocation
> -----------------------------
>
>                 Key: PROTON-2194
>                 URL: https://issues.apache.org/jira/browse/PROTON-2194
>             Project: Qpid Proton
>          Issue Type: Bug
>            Reporter: Attila Kun
>            Priority: Major
>         Attachments: schannel_exception.png
>
>
> When execution gets to {{server_name_matches}} in {{schannel.c}}, an attempt is made to deallocate a chunk of memory here: [https://github.com/apache/qpid-proton/blob/0.30.0/c/src/ssl/schannel.c#L2078]
> However, this is incorrect because the code is passing the pointer's address (which is a memory location on the stack, not the heap) to {{LocalFree}} . This causes a crash. The fix is simply to pass the pointer's value: [https://github.com/attila-kun/qpid-proton/commit/21e88fe0b18a4587768b16ae275a8ae88fd919bb]



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