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https://issues.apache.org/jira/browse/DISPATCH-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373503#comment-16373503
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Gordon Sim commented on DISPATCH-928:
-------------------------------------

More complete patch posted for review: https://reviews.apache.org/r/65760/

> calling map_destination for 'undefined' address causes segfault
> ---------------------------------------------------------------
>
>                 Key: DISPATCH-928
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-928
>             Project: Qpid Dispatch
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Gordon Sim
>            Assignee: Ganesh Murthy
>            Priority: Major
>             Fix For: 1.1.0
>
>
> If qdr_map_destination_CT is called for an address that has not been defined 
> on a router that has the default distribution set to 'undefined', 
> qdr_address_CT (line 578 at present) returns null. However there is no check 
> for this and the address is used to get a hash_handle which causes a segfault.
> Under valgrind you see:
> {noformat}
> ==10232== Invalid write of size 8
> ==10232==    at 0x4E67501: qd_hash_internal_insert (hash.c:156)
> ==10232==    by 0x4E6756B: qd_hash_insert (hash.c:168)
> ==10232==    by 0x4E91644: qdr_map_destination_CT (route_tables.c:579)
> ==10232==    by 0x4E8F80D: router_core_thread (router_core_thread.c:83)
> ==10232==    by 0x550F739: start_thread (in /usr/lib64/libpthread-2.24.so)
> ==10232==    by 0x607AE7E: clone (in /usr/lib64/libc-2.24.so)
> ==10232==  Address 0x98 is not stack'd, malloc'd or (recently) free'd
> {noformat}



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