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[tor-bugs] #4761 [Tor Hidden Services]: HSes could join a client's rend circ before the INTRODUCE_ACK arrives
#4761: HSes could join a client's rend circ before the INTRODUCE_ACK arrives
---------------------------------+------------------------------------------
Reporter: rransom | Owner: rransom
Type: defect | Status: new
Priority: normal | Milestone: Tor: 0.2.2.x-final
Component: Tor Hidden Services | Version:
Keywords: | Parent:
Points: | Actualpoints:
---------------------------------+------------------------------------------
A race condition could trigger the following warning message in
`rend_client_receive_rendezvous` if a hidden service ever joins to a
client's rendezvous circuit before the client receives an INTRODUCE_ACK
from the introduction-point relay:
{{{
log_warn(LD_PROTOCOL,"Got rendezvous2 cell from hidden service, but
not "
"expecting it. Closing.");
}}}
(This would also slow down or break the HS connection establishment
process.)
This bug could be in 0.2.1.x, although we probably don't want to fix it
there.
(Moved from #4759 comment 2.)
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4761>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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