[tor-commits] [tor/master] Fix another case of 12848 in circuit_handle_first_hop

[nickm at torproject.org]

commit 0044d74b3c51cf5824435e76eca2a675b51a14bc
Author: Nick Mathewson <nickm at torproject.org>
Date:   Tue Aug 12 12:15:09 2014 -0400

    Fix another case of 12848 in circuit_handle_first_hop
    
    I looked for other places where we set circ->n_chan early, and found
    one in circuit_handle_first_hop() right before it calls
    circuit_send_next_onion_skin(). If onion_skin_create() fails there,
    then n_chan will still be set when circuit_send_next_onion_skin()
    returns. We should probably fix that too.
---
 src/or/circuitbuild.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index 11f8250..5325eff 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -475,6 +475,7 @@ circuit_handle_first_hop(origin_circuit_t *circ)
     log_debug(LD_CIRC,"Conn open. Delivering first onion skin.");
     if ((err_reason = circuit_send_next_onion_skin(circ)) < 0) {
       log_info(LD_CIRC,"circuit_send_next_onion_skin failed.");
+      circ->base_.n_chan = NULL;
       return err_reason;
     }
   }