[tor-bugs] #12996 [Tor]: Relay operators see "Unexpected onionskin length after decryption: 58"

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#12996: Relay operators see "Unexpected onionskin length after decryption: 58"
-----------------------+------------------------------------
 Reporter:  arma       |          Owner:
     Type:  defect     |         Status:  new
 Priority:  normal     |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor        |        Version:
 Keywords:  tor-relay  |  Actual Points:
Parent ID:             |         Points:
-----------------------+------------------------------------
 We've had one or two reports lately of people seeing
 {{{
 [warn] Unexpected onionskin length after decryption: 58
 }}}
 in their logs.

 It basically means that some client sent the relay a malformed (too short)
 create cell.

 It's possible that this is a bug in our Tor client code, but I think it's
 more likely that somebody else is working on a Tor client, and has a bug
 in their code.

 Since there isn't really much the relay operator can do about it, we
 should probably downgrade the warning to a protocol-warn.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12996>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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