[Bug 1945853] Re: mate-screensaver crashed with SIGSEGV in matemenu_tree_item_ref()

[Launchpad Bug Tracker]

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

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: mate-screensaver (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1945853

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

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

Bug description:
  I found this casually when I was testing the latest Ubuntu MATE 21.10
  Beta. I have no idea what may cause the crash.

  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
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu69
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.465
  CurrentDesktop: MATE
  Date: Sat Oct  2 07:53:08 2021
  ExecutablePath: /usr/bin/mate-screensaver
  ExecutableTimestamp: 1629565330
  LiveMediaBuild: Ubuntu-MATE 21.10 "Impish Indri" - Beta amd64 (20211002)
  ProcCmdline: mate-screensaver
  ProcCwd: /home/ubuntu-mate
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fc222155b07 <matemenu_tree_item_ref+7>:	lock addl $0x1,(%rdi)
   PC (0x7fc222155b07) 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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