[asterisk-bugs] [JIRA] (ASTERISK-20763) Memory Leak in chan_sip with TLS enabled clients

[Digium Subversion (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Digium Subversion closed ASTERISK-20763.
----------------------------------------

    Resolution: Fixed
    
> Memory Leak in chan_sip with TLS enabled clients
> ------------------------------------------------
>
>                 Key: ASTERISK-20763
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20763
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/TCP-TLS
>    Affects Versions: 1.8.18.0
>         Environment: Ubuntu 12.04 LTS / Asterisk 1.8.18 via SVN branch
>            Reporter: deti
>            Severity: Critical
>         Attachments: chan_sip.c.patch, chan_sip.c.patch, memory-allocations+1d.txt, memory-debug+1d.txt, memory-debug.txt
>
>
> Since we have enabled TLS for most of our 200+ clients (Snom 360) the Asterisk process faces a serious memory leak that consumes about 2GB RAM per day.
> With memory debugging enabled you can see:
> 10399843 bytes in 11893 allocations in file 'chan_sip.c'
> Most of the allocations seem to come from line 12089:
>        342 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        702 bytes allocated in         copy_request at line 12089 of chan_sip.c
>       1041 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        857 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        700 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        702 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        847 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        702 bytes allocated in         copy_request at line 12089 of chan_sip.c
>       1044 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        850 bytes allocated in         copy_request at line 12089 of chan_sip.c
>        342 bytes allocated in         copy_request at line 12089 of chan_sip.c
> ... and my educated guess is that comes from sip_tls_read. It seems that the reqcpy created in line 2580 does not get freed properly.

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