[asterisk-bugs] [Asterisk 0015865]: [patch] musiconhold crash on unload

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15865 
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Reported By:                kobaz
Assigned To:                tilghman
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Project:                    Asterisk
Issue ID:                   15865
Category:                   Resources/res_musiconhold
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     closed
Asterisk Version:           1.6.0.14 
JIRA:                        
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2009-09-09 14:48 CDT
Last Modified:              2009-09-30 12:00 CDT
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Summary:                    [patch] musiconhold crash on unload
Description: 
Affects 1.6.0.x, 1.6.1.x and trunk

Put someone on hold, and then unload res_musiconhold

    -- Started music on hold, class 'default', on IAX2/branch-4790

*CLI> module unload res_musiconhold.so
*CLI>   == Destroying musiconhold processes
  == Unregistered application 'MusicOnHold'
  == Unregistered application 'WaitMusicOnHold'
  == Unregistered application 'SetMusicOnHold'
  == Unregistered application 'StartMusicOnHold'
  == Unregistered application 'StopMusicOnHold'
*CLI> Segmentation fault (core dumped)

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 (0111656) svnbot (reporter) - 2009-09-30 12:00
 https://issues.asterisk.org/view.php?id=15865#c111656 
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Repository: asterisk
Revision: 221203

_U  branches/1.6.1/
U   branches/1.6.1/main/channel.c

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r221203 | tilghman | 2009-09-30 12:00:36 -0500 (Wed, 30 Sep 2009) | 21
lines

Merged revisions 221201 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/trunk

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  r221201 | tilghman | 2009-09-30 11:56:42 -0500 (Wed, 30 Sep 2009) | 14
lines
  
  Merged revisions 221200 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
  ........
    r221200 | tilghman | 2009-09-30 11:55:21 -0500 (Wed, 30 Sep 2009) | 7
lines
    
    Avoid a potential NULL dereference.
    (closes issue https://issues.asterisk.org/view.php?id=15865)
     Reported by: kobaz
     Patches: 
           20090915__issue15865.diff.txt uploaded by tilghman (license 14)
     Tested by: kobaz
  ........
................

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http://svn.digium.com/view/asterisk?view=rev&revision=221203 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-09-30 12:00 svnbot         Checkin                                      
2009-09-30 12:00 svnbot         Note Added: 0111656                          
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