[Bug 1294669] Re: bash crashed with SIGABRT in programming_error()

[Launchpad Bug Tracker]

This bug was fixed in the package bash - 4.3-7ubuntu1

---------------
bash (4.3-7ubuntu1) trusty-proposed; urgency=medium

  * Merge with Debian, replacing local with upstream patches. LP:
#1294669.

bash (4.3-7) unstable; urgency=medium

  * Apply upstream patches 009 - 011 (replacing local patches):
    - Fix a problem with unsigned sign extension when attempting to reallocate
      the input line when it is fewer than 3 characters long and there has been
      a history expansion.  The sign extension causes the shell to not
      reallocate the line, which results in a segmentation fault when it writes
      past the end.
    - Change the behavior of programmable completion to compensate for two
      assumptions made by the bash-completion package.
    - The signal handling changes to bash and readline (to avoid running any
      code in a signal handler context) cause the cursor to be placed on the
      wrong line of a multi-line command after a ^C interrupts editing.
 -- Matthias Klose <doko at ubuntu.com>   Wed, 16 Apr 2014 23:22:21 +0200

** Changed in: bash (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1294669

Title:
  bash crashed with SIGABRT in programming_error()

Status in “bash” package in Ubuntu:
  Fix Released
Status in “bash” source package in Trusty:
  Fix Released

Bug description:
  [Test Case]
  bdmurray at blacklightning:~$ x!
  x!: command not found
  bdmurray at blacklightning:~$ x!

  malloc: .././parse.y:2314: assertion botched
  realloc: start and end chunk sizes differ
  last command: x!
  Aborting...Aborted (core dumped)

  [Regression Potential]
  Low, this patch has been applied upstream.

  bash just died under me, I think I was just doing cursor up to get a
  previous command and it segfaulted.  This has happened several times
  this week and is getting annoying

  ProblemType: CrashDistroRelease: Ubuntu 14.04
  Package: bash 4.3-2ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-16.36-lowlatency 3.13.5
  Uname: Linux 3.13.0-16-lowlatency x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: Unity
  Date: Wed Mar 19 14:08:22 2014
  EcryptfsInUse: Yes
  ExecutablePath: /bin/bash
  InstallationDate: Installed on 2013-12-09 (99 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131209)
  ProcCmdline: bash
  Signal: 6SourcePackage: bash
  StacktraceTop:
   programming_error ()
   ?? ()
   sh_xrealloc ()
   ?? ()
   ?? ()
  Title: bash crashed with SIGABRT in programming_error()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sbuild sudo

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