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[Berkane Ahmed <ybenyamine@xxxxxxxx>]

*** This bug is a security vulnerability ***

Public security bug reported:

when i want to unlock drive icons from the dash ,compiz crashed

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: unity 7.3.2+15.10.20150910.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
Uname: Linux 4.2.0-7-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Thu Sep 17 00:10:29 2015
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2015-09-01 (15 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150831)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x7fa5239fb338 <g_bit_lock+72>:	lock bts %r12d,(%rbx)
 PC (0x7fa5239fb338) ok
 source "%r12d" ok
 destination "(%rbx)" (0x00000020) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_bit_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_variant_serialiser_needed_size () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in g_bit_lock()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-crash need-amd64-retrace wily

** Information type changed from Private to Public Security

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https://bugs.launchpad.net/bugs/1496633

Title:
  compiz crashed with SIGSEGV in g_bit_lock()

Status in unity package in Ubuntu:
  New

Bug description:
  when i want to unlock drive icons from the dash ,compiz crashed

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: unity 7.3.2+15.10.20150910.1-0ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
  Uname: Linux 4.2.0-7-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.18.1-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: Unity
  Date: Thu Sep 17 00:10:29 2015
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2015-09-01 (15 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150831)
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0x7fa5239fb338 <g_bit_lock+72>:	lock bts %r12d,(%rbx)
   PC (0x7fa5239fb338) ok
   source "%r12d" ok
   destination "(%rbx)" (0x00000020) not located in a known VMA region (needed writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   g_bit_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_variant_serialiser_needed_size () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: compiz crashed with SIGSEGV in g_bit_lock()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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