[Bug 1237059] Re: dbus-daemon crashed with SIGSEGV

[Launchpad Bug Tracker]

This bug was fixed in the package dbus - 1.6.12-0ubuntu9

---------------
dbus (1.6.12-0ubuntu9) saucy; urgency=low

  * debian/patches/aa-mediate-eavesdropping.patch: Fix a regression that
    caused dbus-daemon to segfault when AppArmor mediation is disabled, or
    unsupported by the kernel, and an application attempts to eavesdrop
    (LP: #1237059)
 -- Tyler Hicks <tyhicks at canonical.com>   Tue, 08 Oct 2013 17:58:36 -0700

** Changed in: dbus (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1237059

Title:
  dbus-daemon crashed with SIGSEGV

Status in “dbus” package in Ubuntu:
  Fix Released

Bug description:
  Upgraded from Raring to Saucy, fully updated system.
  dbus: 1.6.12-0ubuntu8

  Symptom: When you first load the desktop all seems normal except you
  are unable to launch applications.  After rebooting into a known good
  kernel, I got an apport window.  After sending the bug data, no
  browser appears, unable to open one, a terminal, or anything else.
  Switching to a TTY and restarting dbus will give you the terminal and
  browser, but the rest of the desktop is black and the border themes
  are the basic theme.  At this point the desktop is still unusable.

  Expected: Fully functional desktop.

  Steps taken to repair:
  1. Reboot into a known working kernel.
  2. Clearing out old config/cache.
  3. Reinstalling dbus (apt-get install --reinstall.)
  4. Downgrading dbus-x11, dbus, libdbus-1-dev, and libdbus-1-3 to 1.6.12-0ubuntu7.
  Only the last step had any effect.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: dbus 1.6.12-0ubuntu8
  Uname: Linux 3.11.4-u193 i686
  ApportVersion: 2.12.5-0ubuntu1
  Architecture: i386
  CrashCounter: 1
  Date: Tue Oct  8 15:12:24 2013
  ExecutablePath: /bin/dbus-daemon
  ExecutableTimestamp: 1381192108
  InstallationDate: Installed on 2011-04-15 (906 days ago)
  InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Beta i386 (20110413.2)
  MarkForUpload: True
  ProcCmdline: dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-noQydCFQad
  ProcCwd: /
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x804f3f3:	mov    0x8(%eax),%esi
   PC (0x0804f3f3) ok
   source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
   destination "%esi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: dbus
  Stacktrace:
   #0  0x0804f3f3 in ?? ()
   No symbol table info available.
   Cannot access memory at address 0xbff9adcc
  StacktraceTop: ?? ()
  ThreadStacktrace:
   .
   Thread 1 (LWP 4638):
   #0  0x0804f3f3 in ?? ()
   No symbol table info available.
   Cannot access memory at address 0xbff9adcc
  Title: dbus-daemon crashed with SIGSEGV
  UpgradeStatus: Upgraded to saucy on 2013-10-08 (0 days ago)
  UserGroups: adm admin cdrom debian-tor dialout lpadmin plugdev sambashare www-data

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