[tor-bugs] #7889 [Tor]: Relays should drop/destroy begin cells with streamid 0

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#7889: Relays should drop/destroy begin cells with streamid 0
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 Reporter:  arma                    |          Owner:                    
     Type:  defect                  |         Status:  needs_review      
 Priority:  normal                  |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor                     |        Version:                    
 Keywords:  tor-relay 023-backport  |         Parent:                    
   Points:                          |   Actualpoints:                    
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Changes (by nickm):

  * status:  new => needs_review
  * keywords:  tor-relay => tor-relay 023-backport


Comment:

 I've fixed this, and the circID case too, in branch "bug7889_023".  It's
 against 0.2.3 but merges into master too.

 ISTR that there was a thought that this might not only enabled a zombie
 stream or circuit, but also might create a problem with bandwidth checks;
 we might seriously want to consider a backport.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7889#comment:4>
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