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From "Dominic Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PROTON-611) [proton-c] transport buffer increased to peer's max frame size if initial output_size is not enough
Date Thu, 19 Jun 2014 08:46:24 GMT

    [ https://issues.apache.org/jira/browse/PROTON-611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14037136#comment-14037136
] 

Dominic Evans commented on PROTON-611:
--------------------------------------

( similar to PROTON-516 )

> [proton-c] transport buffer increased to peer's max frame size if initial output_size
is not enough
> ---------------------------------------------------------------------------------------------------
>
>                 Key: PROTON-611
>                 URL: https://issues.apache.org/jira/browse/PROTON-611
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.7
>            Reporter: Dominic Evans
>         Attachments: 20_fix_bad_malloc_in_transport_produce.patch
>
>
> transport_produce attempts to allocate a negatively sized buffer
> As soon as remote_max_frame is set, the code in transport_produce attempts to increase
its buffer immediately up to that size when its initial size isn't enough. This causes a huge
malloc to occur if the remote max frame size is large and also potentially overflows MAX_INT



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