[asterisk-bugs] [JIRA] (ASTERISK-20499) Crash in libsrtp srtp_unprotect_rtcp when SIP channel is bridged with non-optimizing Local channel

[Jonathan Rose (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=201144#comment-201144 ] 

Jonathan Rose commented on ASTERISK-20499:
------------------------------------------

Well, for now we can go ahead and set this aside with the current patch which was approved the other day which resolves the issues (or at bare minimum pushes them deeper into the abyss) we were able to identify. I never was able to reproduce your actual crash, so if you can't do it now either we are pretty effectively stuck on that one. If you get everything back in order and are still encountering these crashes related to srtp, it'll be appropriate to open a new issue at that time coupled with new backtraces and such.
                
> Crash in libsrtp srtp_unprotect_rtcp when SIP channel is bridged with non-optimizing Local channel
> --------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-20499
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20499
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/SRTP
>    Affects Versions: 10.8.0
>         Environment: RHEL 5.8 on IBM X3650 M4 - 12 core - Xeon E5-2640 @ 2,50 ghz
>            Reporter: tootai
>            Assignee: Jonathan Rose
>            Severity: Critical
>         Attachments: asterisk-20499_20121127.log, asterisk-20499_20121127.pcap, asterisk-20499_20121129_01.txt, asterisk-20499.txt, asterisk_srtp_unprotect_patch.diff, backtrace1213_1.8.txt, backtrace1222_1.8.txt, backtrace1251.txt, backtrace1436.txt, backtrace1442.txt, backtrace1932.txt, backtrace20121205.txt, backtrace.txt, backtrace.txt, backtrace.txt, backtrace.txt, coredump20121001205609.txt, gdb1213_1.8.txt, gdb1222_1.8.txt, gdb1251.txt, gdb1436.txt, gdb1442.txt, gdb1932.txt, gdb20121205.txt, gdb.txt, gdb.txt, gdb.txt, gdb.txt, libsrtp-1.4.4-fix_crash_on_rtcp_decode.patch, srtp_diagnostic_patch_policy_breakdown.diff, srtp_diagnostic_with_sleep.diff, srtp_fixes_it_maybe.diff
>
>
> A call from snom320 in SRTP mode to echo test or to another phone *NOT* using SRTP is OK. Now we installed PhonerLite softphone with TLS/SRTP stuf and test with echo test: everything is OK too.
> Now PhonerLite calls the snom: asterisk coredump after 3~5 seconds and we are NOT able to make anymore SRTP calls after this, they all crash asterisk. We had this issue with 10.7.0 and 10.8.0
> We have logfiel from strace as well as coredump.

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