[asterisk-bugs] [Asterisk 0013380]: [patch] pthread_cancel segmentation faults

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13380 
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Reported By:                Matti
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13380
Category:                   Channels/chan_h323
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.2.X 
SVN Branch (only for SVN checkouts, not tarball releases):  1.2  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-08-27 01:20 CDT
Last Modified:              2008-08-29 00:25 CDT
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Summary:                    [patch] pthread_cancel segmentation faults
Description: 
pthread_cancel segmentation faults when the bind address in h323.conf is
not configured in Linux. A detached thread must not be cancelled.
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 (0091883) Matti (reporter) - 2008-08-29 00:25
 http://bugs.digium.com/view.php?id=13380#c91883 
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The specification of pthread_cancel says that the storage for the cancelled
thread can be reused. That means that if the thread erroneously ends, the
cancellation could cancel a wrong thread. It is not the only restriction on
a detached thread that it cannot be joined. The channel driver also calls
pthread_kill on the thread ID after cancelling it, which means that it can
kill a wrong thread. The driver also joins the thread after cancelling it,
which is a grave error. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-08-29 00:25 Matti          Note Added: 0091883                          
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