[Bug 1507211] Re: aptitude segfaults during dependency resolution

[Rogério Theodoro de Brito]

Hi.

On Dec 15 2015, Brian Murray wrote:
> I'll go ahead and sponsor this, thanks for working on it!

Thanks for both of you for working on this.


-- 
Rogério Brito : rbrito@{ime.usp.br,gmail.com} : GPG key 4096R/BCFCAAAA
http://cynic.cc/blog/ : github.com/rbrito : profiles.google.com/rbrito
DebianQA: http://qa.debian.org/developer.php?login=rbrito%40ime.usp.br

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https://bugs.launchpad.net/bugs/1507211

Title:
  aptitude segfaults during dependency resolution

Status in aptitude package in Ubuntu:
  Fix Released
Status in aptitude source package in Wily:
  Triaged
Status in aptitude package in Debian:
  Fix Released

Bug description:
  [Impact]

  Aptitude regularly crashes when trying to mark packages for deletion
  due to an infinite loop in a recursive function (improperly handled
  circular dependencies).

  [Test Case]

  On a fresh English install of Ubuntu 15.10 desktop:

  1. Start up aptitude:  sudo aptitude
  2. Mark the following packages as automatically installed (select them and
     press Shift-M):
       * language-pack-en
       * language-pack-en-base
       * language-pack-gnome-en
       * language-pack-gnome-en-base
     Aptitude should now show all four packages as marked for deletion.
  3. Mark language-pack-gnome-en-base for purge by selecting it and pressing
     '_' (underscore).

  If the bug is not fixed, aptitude will crash.  (Your terminal will
  likely be in a bad state.  Run 'reset' to fix it.)

  [Regression Potential]

  The patch alters the logic used to automatically mark packages for
  deletion.  Any regressions should appear there.

  The patch is cherry-picked from the upstream Git repository, so
  upstream recognizes the bug and approves of this fix.  However,
  upstream might have committed additional related changes (e.g., to fix
  a hypothetical flaw in this patch) without us realizing it.

  [Original Description]

  Hi.

  I just installed a new Ubuntu MATE 15.10 for my mom and I was
  selecting packages when aptitude simply crashed. I am using (for
  reasons beyond my control right now) the 32 bit version if that
  matters.

  I don't know if I can reproduce the problem or not, but I may try
  (despite the fact I do not have frequent access to this computer).

  If any further information is needed, please let me know.

  Thanks,

  Rogério Brito.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: aptitude 0.7.3-1ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-11-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu2
  Architecture: i386
  Date: Sat Oct 17 21:17:03 2015
  ExecutablePath: /usr/bin/aptitude-curses
  InstallationDate: Installed on 2015-10-17 (0 days ago)
  InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Alpha i386 (20150924)
  ProcCmdline: aptitude
  SegvAnalysis: Skipped: missing required field "Disassembly"
  Signal: 11
  SourcePackage: aptitude
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  == Regression details ==
  Discovered in version: 0.7.3-1ubuntu1
  Last known good version: 0.6.11-1ubuntu3

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