[OpenSIPS-Devel] [ opensips-Bugs-3589142 ] B2B: crash when request without from_tag or to header

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Bugs item #3589142, was opened at 2012-11-22 05:41
Message generated for change (Comment added) made by nikbyte
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Category: modules
Group: trunk
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nick Altmann (nikbyte)
Assigned to: Nobody/Anonymous (nobody)
>Summary: B2B: crash when request without from_tag or to header

Initial Comment:
Sometimes buggy UACs send in-b2b-dialog CANCEL without from_tag.
b2b_entities module crashes in dlg.c on line 645:
hash_index = core_hash(&callid, &from_tag, server_hsize);

because from_tag is empty.


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>Comment By: Nick Altmann (nikbyte)
Date: 2012-11-25 23:22

Message:
I've tested it again. Any packet without from tag or without to header
crashes opensips!

Patch attached.


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=1086410&aid=3589142&group_id=232389