[Bug 1944075] Re: mate-screensaver crashed with SIGSEGV in matemenu_tree_item_ref()

[Apport retracing service]

*** This bug is a duplicate of bug 1943369 ***
    https://bugs.launchpad.net/bugs/1943369

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1943369, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

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** This bug has been marked a duplicate of private bug 1943369

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1944075

Title:
  mate-screensaver crashed with SIGSEGV in matemenu_tree_item_ref()

Status in glib2.0 package in Ubuntu:
  New
Status in mate-screensaver package in Ubuntu:
  New

Bug description:
  After long idle time mate-screensaver was not activated. Display
  backlight is dimmed, screen is not locked.

  Lenovo SL500.

  ProblemType: Crash
  DistroRelease: Ubuntu 21.10
  Package: mate-screensaver 1.26.0-0ubuntu1
  ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13
  Uname: Linux 5.13.0-16-generic x86_64
  ApportVersion: 2.20.11-0ubuntu69
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: MATE
  Date: Sun Sep 19 15:20:27 2021
  ExecutablePath: /usr/bin/mate-screensaver
  InstallationDate: Installed on 2021-09-19 (0 days ago)
  InstallationMedia: Ubuntu-MATE 21.10 "Impish Indri" - Alpha amd64 (20210919)
  ProcCmdline: /usr/bin/mate-screensaver --no-daemon
  RebootRequiredPkgs: Error: path contained symlinks.
  SegvAnalysis:
   Segfault happened at: 0x7f1acebe9b07 <matemenu_tree_item_ref+7>:	lock addl $0x1,(%rdi)
   PC (0x7f1acebe9b07) ok
   source "$0x1" ok
   destination "(%rdi)" (0x00000000) not located in a known VMA region (needed writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: mate-screensaver
  StacktraceTop:
   matemenu_tree_item_ref () from /lib/x86_64-linux-gnu/libmate-menu.so.2
   gs_theme_manager_lookup_theme_info ()
   ?? ()
   ?? ()
   g_closure_invoke () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
  Title: mate-screensaver crashed with SIGSEGV in matemenu_tree_item_ref()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  separator:

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