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[tor-bugs] #30775 [Core Tor/Tor]: Crash in close_or_reextend_intro_circ() (not released)

#30775: Crash in close_or_reextend_intro_circ() (not released)
------------------------------+-------------------------------------------
     Reporter:  asn           |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.4.1.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-hs bug 041-must stability
Actual Points:                |  Parent ID:  #30773
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+-------------------------------------------
 There is a UAF in:


 {{{
   if (!TO_CIRCUIT(intro_circ)->marked_for_close) {
     circuit_change_purpose(TO_CIRCUIT(intro_circ),
                            CIRCUIT_PURPOSE_C_INTRODUCE_ACKED);
     circuit_mark_for_close(TO_CIRCUIT(intro_circ),
 END_CIRC_REASON_FINISHED);
   }
   /* Close the related rendezvous circuit. */
   rend_circ = hs_circuitmap_get_rend_circ_client_side(
 intro_circ->hs_ident->rendezvous_cookie);
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30775>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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