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[tor-bugs] #20163 [Core Tor/Tor]: Keep the interface address order returned by the OS

#20163: Keep the interface address order returned by the OS
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.2.???
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.7.1-alpha
     Severity:  Normal        |   Keywords:  029-proposed
Actual Points:                |  Parent ID:
       Points:  0.1           |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 #17027 unintentionally reorders interface addresses, by using
 SMARTLIST_DEL_CURRENT() in get_interface_address6_list() to delete
 unsuitable addresses, rather than SMARTLIST_DEL_CURRENT_KEEPORDER().

 This makes address selection unstable, because it depends on not only the
 exact order in which the OS returns addresses, but the exact number of
 unsuitable addresses as well.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20163>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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