Gnome shell crashed while updating these packages:

Start-Date: 2018-02-14  08:14:44
Commandline: apt-get -y install libegl1-mesa libegl1-mesa-dev libgbm-dev 
libgbm1 libgl1-mesa-dev libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa 
libgles2-mesa libgles2-mesa-dev libosmesa6 libwayland-egl1-mesa libxatracker2 
mesa-common-dev mesa-vdpau-drivers
Upgrade: libgles2-mesa:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libegl1-mesa-dev:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libglapi-mesa:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libglapi-mesa:i386 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), mesa-common-dev:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libxatracker2:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libegl1-mesa:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgbm1:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libwayland-egl1-mesa:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgles2-mesa-dev:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgl1-mesa-dev:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgl1-mesa-dri:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgl1-mesa-dri:i386 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libosmesa6:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libosmesa6:i386 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgl1-mesa-glx:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgl1-mesa-glx:i386 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), libgbm-dev:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), mesa-vdpau-drivers:amd64 (17.2.4-0ubuntu1~16.04.4, 
17.2.8-0ubuntu0~16.04.1), mesa-vdpau-drivers:i386 (17.2.4-0ubuntu1~16.04.4, 
End-Date: 2018-02-14  08:19:10

Here is a link to output of /var/log/syslog on PasteBin -

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  gnome-shell assert failure: *** Error in `/usr/bin/gnome-shell':
  free(): invalid pointer: 0x00000000082dcf30 *** in g_strfreev() from
  g_themed_icon_finalize() from g_object_unref() from

Status in libgweather:
  Fix Released
Status in Ubuntu GNOME:
  Fix Committed
Status in gnome-shell package in Ubuntu:
Status in libgweather package in Ubuntu:
  Fix Released
Status in libgweather source package in Zesty:
  In Progress

Bug description:
  Backport git patch that fixes memory corruption in libgweather that is 
causing gnome-shell to crash. This is particularly bad on wayland as it causes 
the user to lose their sessions

  I believe this should also fix bug 1688208 and potentially a couple of
  other high ranking crashes on I have not however
  found reliable reproducers for those other bugs.

  [Test Case]
  After update of libgweather
  1. Ensure org.gnome.Weather.Application locations is not set (as per default 
  2. Disable Location Services
  3. gnome-shell should not crash

  [Regression Potential]
  Low, the patch merely fixes a refcounting bug. Given the high impact of this 
bug, this is an important fix.
  ======= original bug report ============
  This happened while installing Xfce with Synaptic.

  chris@localhost:~$ lsb_release -rd
  Description:  Ubuntu 16.04.1 LTS
  Release:      16.04

  chris@localhost:~$ apt-cache policy gnome-shell
    Installed: 3.18.5-0ubuntu0.1
    Candidate: 3.18.5-0ubuntu0.1
    Version table:
   *** 3.18.5-0ubuntu0.1 500
          500 xenial-updates/universe amd64 
          100 /var/lib/dpkg/status
       3.18.4-0ubuntu3 500
          500 xenial/universe amd64 Packages

  ProblemType: CrashDistroRelease: Ubuntu 16.04
  Package: gnome-shell 3.18.5-0ubuntu0.1
  ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
  Uname: Linux 4.4.0-34-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AssertionMessage: *** Error in `/usr/bin/gnome-shell': free(): invalid 
pointer: 0x00000000082dcf30 ***
  CrashCounter: 1
  CurrentDesktop: GNOME
  Date: Wed Aug 24 16:21:37 2016
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2014-10-24 (670 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  ProcCmdline: /usr/bin/gnome-shell
   PATH=(custom, no user)
  Signal: 6SourcePackage: gnome-shell
   __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fabad1e06b0 "*** 
Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
   malloc_printerr (ar_ptr=<optimized out>, ptr=<optimized out>, 
str=0x7fabad1dd48f "free(): invalid pointer", action=3) at malloc.c:5007
   _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at 
   __GI___libc_free (mem=<optimized out>) at malloc.c:2969
   g_strfreev () from /lib/x86_64-linux-gnu/
  Title: gnome-shell assert failure: *** Error in `/usr/bin/gnome-shell': 
free(): invalid pointer: 0x00000000082dcf30 ***
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
   x-session-manager[7610]: CRITICAL: We failed, but the fail whale is dead. 
   x-session-manager[14832]: CRITICAL: We failed, but the fail whale is dead. 
   x-session-manager[5188]: CRITICAL: We failed, but the fail whale is dead. 

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