Ubuntu
dpkg package

update-alternatives crashed with SIGSEGV in __libc_start_main()

Bug #615100 reported by Chen Liang
350
This bug affects 43 people
Affects Status Importance Assigned to Milestone
dpkg (Ubuntu)
Fix Released
Medium
Unassigned

Bug Description

Binary package hint: dpkg

I upgraded my ubuntu from 10.04 to 10.10 without a clean install. I did few updates since then, this time I got a crash report from ubuntu. This is the details.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: dpkg 1.15.8.2ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-14.20-generic 2.6.35
Uname: Linux 2.6.35-14-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Sun Aug 8 22:47:51 2010
ExecutablePath: /usr/bin/update-alternatives
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcCmdline: update-alternatives --remove-all ps2pdf
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_IE.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xaef1aa: cmp (%edx),%al
 PC (0x00aef1aa) ok
 source "(%edx)" (0x00000019) not located in a known VMA region (needed readable region)!
 destination "%al" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: dpkg
StacktraceTop:
 ?? () from /lib/libc.so.6
 ?? ()
 ?? ()
 __libc_start_main () from /lib/libc.so.6
 ?? ()
Title: update-alternatives crashed with SIGSEGV in __libc_start_main()
UserGroups:

Revision history for this message
Chen Liang (chenliang) wrote :
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 *__GI_strcoll (s1=0xbfdf2dce "remove-all",
 main (argc=3, argv=0xbfdf23f4)

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in dpkg (Ubuntu):
importance: Undecided → Medium
tags: removed: need-i386-retrace
Brian Murray (brian-murray)
visibility: private → public
Brian Murray (brian-murray)
Changed in dpkg (Ubuntu):
status: New → Confirmed
assignee: nobody → Canonical Foundations Team (canonical-foundations)
Revision history for this message
Michael Vogt (mvo) wrote :

The backtrace shows:

 current_choice = 0x9609a38 "/usr/bin/ps2pdf14"

Revision history for this message
Michael Vogt (mvo) wrote :

This should already be fixed with the follow upload (the free segfault line is the relevant one):

dpkg (1.15.8.4ubuntu1) maverick; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Adjust versioned emacs22 conflicts to cope with versions in Ubuntu.
    - cputable: Set cpu to i686 for arch i386.

 -- Colin Watson <email address hidden> Mon, 16 Aug 2010 14:57:09 +0100

dpkg (1.15.8.4) unstable; urgency=low

  [ Guillem Jover ]
  * Fix use after free segfault on update-alternatives --remove-all.
    Closes: #591653, #591654
...

Changed in dpkg (Ubuntu):
status: Confirmed → Fix Released
Brian Murray (brian-murray)
Changed in dpkg (Ubuntu):
assignee: Canonical Foundations Team (canonical-foundations) → nobody
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