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[tor-bugs] #32376 [Core Tor/Tor]: test: Possible NULL deref in free_fake_orcirc()



#32376: test: Possible NULL deref in free_fake_orcirc()
------------------------------+--------------------------------
     Reporter:  dgoulet       |      Owner:  dgoulet
         Type:  defect        |     Status:  assigned
     Priority:  Medium        |  Milestone:  Tor: 0.4.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-test, coverity
Actual Points:                |  Parent ID:
       Points:  0.1           |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 Introduced with #32196.

 Found by coverity:

 {{{
 *** CID 1455207:  Null pointer dereferences  (FORWARD_NULL)
 /src/test/test_relay.c: 116 in test_relay_close_circuit()
 110       if (orcirc) {
 111         circuitmux_detach_circuit(nchan->cmux, TO_CIRCUIT(orcirc));
 112         circuitmux_detach_circuit(pchan->cmux, TO_CIRCUIT(orcirc));
 113         cell_queue_clear(&orcirc->base_.n_chan_cells);
 114         cell_queue_clear(&orcirc->p_chan_cells);
 115       }
 >>>     CID 1455207:  Null pointer dereferences  (FORWARD_NULL)
 >>>     Passing null pointer "orcirc" to "free_fake_orcirc", which
 dereferences it.
 116       free_fake_orcirc(orcirc);
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32376>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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