[tor-bugs] #22466 [Core Tor/Tor]: "Crosscert is expired" warnings: RSA->Ed25519 identity crosscertifice apparently made in 1970?

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#22466: "Crosscert is expired" warnings: RSA->Ed25519 identity crosscertifice
apparently made in 1970?
-------------------------------------------------+-------------------------
 Reporter:  nickm                                |          Owner:
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.1.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  030-backport tor-relay certificate   |  Actual Points:
  expired 1970                                   |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by nickm):

 Hi!  I think case 1 above is impossible, since do_hup() is a signal
 handler, and the signal handlers aren't even installed until later in
 tor_main() than first update_approx_time() call.  I agree that case 2 is
 unlikely, given OS behavior.

 Based on our earlier discussion with jvoisin, we found that the relay
 "jafar" had gotten an unexpected crash.  Also, it's running on an
 ODROID-C1.  Those together make it seem likelier to me that your case 4
 ("The OS believes it's 1970") is the likeliest explanation.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22466#comment:8>
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