[Bug 1661209] Re: apport-unpack crashes with ValueError: ['ProcEnviron', UserGroups'] has no binary content

[Benjamin Drung]

I can reproduce it with the attached _usr_sbin_avahi-daemon.0.crash

Can you submit the crash by running "apport-bug
/var/crash/_usr_sbin_avahi-daemon.0.crash"?

** Summary changed:

- crashes when trying to upload avahi report from #1661205
+ apport-unpack crashes with ValueError: ['ProcEnviron', UserGroups'] has no binary content

** Changed in: apport (Ubuntu)
       Status: New => Triaged

** Also affects: apport
   Importance: Undecided
       Status: New

** Changed in: apport
       Status: New => Triaged

** Changed in: apport
   Importance: Undecided => Medium

** Changed in: apport
    Milestone: None => 2.23.0

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Title:
  apport-unpack crashes with ValueError: ['ProcEnviron', UserGroups']
  has no binary content

Status in Apport:
  Triaged
Status in apport package in Ubuntu:
  Triaged

Bug description:
  In bug #1661205 avahi-dameon repeatedly crashes, and causes apport to
  go into an infinite loop.

  However I suspect this is a problem with apport, because when I
  manually unpack the .crash I get:

  # apport-unpack /var/crash/_usr_sbin_avahi-daemon.0.crash /home/redacted/foo
  Traceback (most recent call last):
    File "/usr/bin/apport-unpack", line 73, in <module>
      pr.extract_keys(f, bin_keys, dir)
    File "/usr/lib/python3/dist-packages/problem_report.py", line 270, in extract_keys
      [item for item, element in b64_block.items() if element is False])
  ValueError: ['ProcEnviron', 'UserGroups'] has no binary content

  Please find attached /var/crash/_usr_sbin_avahi-daemon.0.crash

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: apport 2.20.3-0ubuntu8.2
  ProcVersionSignature: Ubuntu 4.8.0-34.36-generic 4.8.11
  Uname: Linux 4.8.0-34-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8.2
  Architecture: amd64
  CrashReports:
   640:0:122:14612:2017-02-02 10:48:08.638081761 +0000:2017-02-02 10:48:08.638081761 +0000:/var/crash/_usr_bin_apport-unpack.0.crash
   640:0:122:1355374:2017-02-02 10:42:53.922800121 +0000:2017-02-02 10:48:08.582079751 +0000:/var/crash/_usr_sbin_avahi-daemon.0.crash
  CurrentDesktop: Unity
  Date: Thu Feb  2 10:51:34 2017
  InstallationDate: Installed on 2016-10-31 (93 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: No upgrade log present (probably fresh install)

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