[tor-bugs] #8093 [Tor]: Jan 29 23:32:20.066 [Warning] Bug/attack: unexpected sendme cell from client. Closing circ.

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#8093: Jan 29 23:32:20.066 [Warning] Bug/attack: unexpected sendme cell from
client. Closing circ.
----------------------+-----------------------------------------------------
 Reporter:  Gravitas  |          Owner:                    
     Type:  defect    |         Status:  new               
 Priority:  normal    |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor       |        Version:  Tor: 0.2.4.9-alpha
 Keywords:            |         Parent:                    
   Points:            |   Actualpoints:                    
----------------------+-----------------------------------------------------

Comment(by arma):

 {{{
 diff --git a/src/or/relay.c b/src/or/relay.c
 index f711eae..1289f7d 100644
 --- a/src/or/relay.c
 +++ b/src/or/relay.c
 @@ -1443,7 +1443,8 @@ connection_edge_process_relay_cell(cell_t *cell,
 circuit_
              /*XXXX024: Downgrade this back to LOG_PROTOCOL_WARN after a
 while*
              log_fn(LOG_WARN, LD_PROTOCOL,
                     "Bug/attack: unexpected sendme cell from client. "
 -                   "Closing circ.");
 +                   "Closing circ (window %d).",
 +                   circ->package_window);
              return -END_CIRC_REASON_TORPROTOCOL;
            }
            circ->package_window += CIRCWINDOW_INCREMENT;
 }}}

 seems like the clear first step in debugging.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8093#comment:9>
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