[tor-bugs] #7912 [Tor]: Cells that don't get inserted into cell queues can clog connection flushing

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#7912: Cells that don't get inserted into cell queues can clog connection flushing
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 Reporter:  asn        |          Owner:                    
     Type:  defect     |         Status:  needs_review      
 Priority:  normal     |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor        |        Version:                    
 Keywords:  tor-relay  |         Parent:                    
   Points:             |   Actualpoints:                    
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Changes (by nickm):

  * status:  new => needs_review


Comment:

 Need to review those more closely; it's an interesting idea.

 What happens if we try to CREATE a circuit which we think we have already
 DESTROYED, but for which the DESTROY cell is still pending?  It seems we
 send CREATE cells immediately, and when we make a create cell, we could
 pick any circuit ID which isn't used ... including ones where we're going
 to send a DESTROY cell soon.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7912#comment:5>
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