[tor-bugs] #22502 [Core Tor/Tor]: Investigate Zstandard decompression error

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Jun 5 22:56:45 UTC 2017


#22502: Investigate Zstandard decompression error
------------------------------+--------------------------------
     Reporter:  ahf           |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.1.x-final
    Component:  Core Tor/Tor  |    Version:  Tor: 0.3.1.2-alpha
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:  Sponsor4      |
------------------------------+--------------------------------
 `make test-network` with current tor `HEAD` yields a number of warning
 related to Zstandard decompression, which indicates we have a bug
 somewhere. The relevant error snippet is:

 {{{
 Warning: Error while uncompresing data: bad input? Number: 2
 Warning: Zstandard decompression didn't finish: Unknown frame descriptor.
 Number: 2
 }}}

 Both Nick and I are able to reproduce this issue on FC and Debian stretch
 with different versions of libzstd, which probably indicate that this
 issue is in our code.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22502>
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