[asterisk-bugs] [JIRA] Commented: (ASTERISK-19762) Segfault in ast_frdup when invalid data length specified in duplicated frame

[Kinsey Moore (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-19762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=195497#comment-195497 ] 

Kinsey Moore commented on ASTERISK-19762:
-----------------------------------------

Benjamin,
The only pcap I can find from you is 1342181407.3900.pcap along with log files cli-capture_stripped.txt and manager-fax-output_stripped.txt.  The pcap looks to be mostly alright even though it opens with an error mentioning a partial packet at the end and I can see no indication of the segfault occurring on either log file.  Can you verify that these are the correct log files and that they hold the activity surrounding the segfault?  The only possible problem with the code I can see right now is seqno overflow and I am not sure that it would cause the problems you are seeing.  In the mean time, could you try out the patch attached to ASTERISK-19373?

Kinsey

> Segfault in ast_frdup when invalid data length specified in duplicated frame
> ----------------------------------------------------------------------------
>
>                 Key: ASTERISK-19762
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-19762
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_fax
>    Affects Versions: 1.8.11.0
>         Environment: Linux version 2.6.32-5-amd64 (Debian 2.6.32-41squeeze2)
>            Reporter: Benjamin
>            Assignee: Kinsey Moore
>            Severity: Critical
>         Attachments: bt 2.txt, bt full 2.txt, bt full.txt, bt.txt
>
>
> Hi,
> Asterisk crashes with segfault. I can not reproduce it. I suppose it comes from faxing with T.38 (bt.txt and bt full.txt)
> There were about 8 segfault in the past 4 days...
> Any suggestions!?
> regards,
> Benjamin

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