[tor-bugs] #27841 [Core Tor/Tor]: Surprise race: Intro point closes circuit after NACK, at the same time as client tries to extend circuit to new intro point

[Tor Bug Tracker & Wiki]

#27841: Surprise race: Intro point closes circuit after NACK, at the same time as
client tries to extend circuit to new intro point
-------------------------------------------------+-------------------------
 Reporter:  asn                                  |          Owner:  neel
     Type:  defect                               |         Status:  closed
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  tor-hs dos 035-backport              |  Actual Points:
  040-backport 041-backport                      |
Parent ID:                                       |         Points:
 Reviewer:  dgoulet                              |        Sponsor:
                                                 |  Sponsor27
-------------------------------------------------+-------------------------

Comment (by nickm):

 It's possible, but would require a new consensus method.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27841#comment:33>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online