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Re: [tor-bugs] #15515 [Tor]: Don't allow multiple INTRODUCE1s on the same circuit

#15515: Don't allow multiple INTRODUCE1s on the same circuit
-------------------------+-------------------------------------------------
     Reporter:  asn      |      Owner:
         Type:  defect   |     Status:  needs_review
     Priority:  major    |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor      |    Version:  Tor: 0.2.7
   Resolution:           |   Keywords:  026-backport 025-backport
Actual Points:           |  024-backport SponsorR, 027-triaged-1-in,
       Points:  small    |  SponsorU
                         |  Parent ID:  #15463
-------------------------+-------------------------------------------------

Comment (by qwerty1):

 {{{#!c
   unsigned int already_received_introduce1 : 1;
 }}}

 `circ->already_received_introduce1` wants to be initialized to `0` - no
 `INTRODUCE1` received on this circuit yet, otherwise the first
 `INTRODUCE1` will be blocked too.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15515#comment:26>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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