[sr-dev] [tracker] Comment added: Double Free -- Crash/Coredump and possible security vulnerability

sip-router admin at sip-router.org
Tue Nov 22 00:07:26 CET 2011


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The following task has a new comment added:

FS#173 - Double Free -- Crash/Coredump and possible security vulnerability
User who did this - Daniel-Constantin Mierla (miconda)

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Also, I just pushed in a tmp branch (tmp/dlgnewref) a patch refactoring the dlg structure reference counting, mainly in relation with TM module. The commit link is:

  * http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=9ba4ee25e32368a9c17c3f86784a52a97b748b93

This approach should be safer for any future development of tm, as there is no more storage of a dialog module specific pointer inside TM structures. Also, dialog structures destroyed for various reasons, will be no longer found by tm callbacks or timer functions, thus no more risk of segmentation fault.

Testing of this new version will appreciated. Based on results and feedback, it will be merged into master branch and backported -- there is no change in config functionality or exported API of dialog module -- just internal refactoring.
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=173#comment378

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