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Posted to issues@trafficserver.apache.org by "Susan Hinrichs (JIRA)" <ji...@apache.org> on 2016/08/19 15:46:21 UTC

[jira] [Assigned] (TS-4766) HTTP/2 packet corruption introduced by TS-4717 fix

     [ https://issues.apache.org/jira/browse/TS-4766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Susan Hinrichs reassigned TS-4766:
----------------------------------

    Assignee: Susan Hinrichs

> HTTP/2 packet corruption introduced by TS-4717 fix
> --------------------------------------------------
>
>                 Key: TS-4766
>                 URL: https://issues.apache.org/jira/browse/TS-4766
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: HTTP/2
>            Reporter: Susan Hinrichs
>            Assignee: Susan Hinrichs
>             Fix For: 7.0.0
>
>
> We observed problems with large uploads over HTTP/2 via Firefox.  Tracked it down to ATS sending a GOAWAY frame early because the frame appeared to be corrupted.  The problem was introduced in the restructuring in TS-4717 to get rid of the unbounded recursion.  The logic will return with one of two handlers set.  One to deal with the case of starting to read a fresh frame and another to deal with the case of finishing reading a partially read frame.  There is a path where we finish reading a frame but don't reset the handler to the new frame case.  When the next data arrives the wrong handler starts reading it resulting in ATS thinking it has received a malformed frame.



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