[Bug 1865300] Re: gnome-shell-hotplug-sniffer crashed with SIGSEGV in g_str_hash() from g_hash_table_lookup() from deep_count_more_files_callback()

Thu Jul 2 09:00:41 UTC 2020

This bug was fixed in the package gnome-shell - 3.36.3-1ubuntu1~20.04.2

---------------
gnome-shell (3.36.3-1ubuntu1~20.04.2) focal; urgency=medium

  * No change backport to focal

gnome-shell (3.36.3-1ubuntu2) groovy; urgency=medium

  * d/p/shell-mime-sniffer-Ignore-invalid-file-content-type.patch:
    - gnome-shell-sniffer, don't crash when opening files with invalid content
      type (LP: #1865300)

gnome-shell (3.36.3-1ubuntu1~20.04.1) focal; urgency=medium

  * No change backport to focal (LP: #1881973)

gnome-shell (3.36.3-1ubuntu1) groovy; urgency=medium

  * Merge with debian, including new upstream release:
    - Fix app icon aspect ratio in the panel (LP: #1872026)
    - Ensure that Do not disturb is persistent across sessions (LP: #1873692)
    - Fix Theme node crashes (LP: #1877774, LP: #1877760)
  * debian/patches: Refresh
  * Remaining changes with debian:
    - Replace gnome-backgrounds dep with ubuntu-wallpapers and Suggests
      gnome-themes-standard-data, gnome-backgrounds
    - Add some Recommends:
      + ubuntu-session (| gnome-session) to have the ubuntu session available
      + xserver-xorg-legacy
      + yaru-theme-gnome-shell for the default ubuntu theming
    - Update debian/gbp.conf with Ubuntu settings
    - gnome-shell-common.prerm: Remove deprecated ubuntu theme alternative
    - ubuntu/desktop_detect.patch:
      + add caching for desktop detection to avoid querying the current
        desktop env variable as iterate through the list each time. For the
        time of the Shell process, we can expect this env variable to stay
        stable.
    - ubuntu/smarter_alt_tab.patch:
      + quick alt-tab (without showing up the switcher) switch only between
        the last window of the last 2 applications to be focused instead of
        raising all windows of those apps.
    - ubuntu/lightdm-user-switching.patch:
      + Allow user switching when using LightDM.
    - ubuntu/lock_on_suspend.patch
      + Respect Ubuntu's lock-on-suspend setting.
    - ubuntu/background_login.patch
      + Change default background color as we modified the default GDM color
        for our ubuntu session.
    - ubuntu/gdm_alternatives.patch
      + Add support for GDM3 theme alternatives
    - optional-hot-corner.patch
      + enable patch proposed by upstream developer already in package (but
        not in series) to add a settings for optional hot corner activation.
    - main-show-an-error-message-on-gnome-shell-crash.patch,
      global-make-possible-to-set-debug-flags-dynamically.patch,
      main-increase-the-granularity-of-backtraces-in-SHELL_DEBU.patch,
      main-add-backtrace-crashes-all-and-backtrace-all.patch,
      sessionMode-add-support-for-debugFlags-parameter.patch:
      + Improve debug JS tracing for crash reports
    - st-scroll-view-Handle-the-case-where-scrollbars-are-NULL.patch:
      + Fix crash on theme changes
    - ubuntu/search-call-XUbuntuCancel-method-on-providers-when-no-dat.patch:
      + stop searches when requested from UI
    - magnifier-Show-cursor-when-magnifier-is-enabled-and-scale.patch:
      + Show monitor scaled cursor when magnifier is enabled
    - Break gnome-shell-extension-desktop-icons (<< 19.01.3+git20190814)

gnome-shell (3.36.3-1) unstable; urgency=medium

  * New upstream release (LP: #1881973)
    - Add gnome-shell-extension-prefs wrapper for compatibility
    - Fix distorted fallback icons in top bar
    - Lower timeout for scrolling in overview
    - Only start systemd units when running under systemd
    - Fix "ghost" media controls
    - Fix zombie sockets from extensions downloader
    - Update world clocks offsets when timezone changes
    - Fix "Do Not Disturb" setting getting reset on startup
    - Fix pad OSD glitches
    - Fix matching notifications by PID
    - Only allow updates for extensions that aren't cached
    - Fixed crashes

gnome-shell (3.36.2+64+ge74e691d8-1) experimental; urgency=medium

  * Team upload
  * New upstream snapshot from the gnome-3-36 branch
    - Fixes a crash when locking the screen with certain extensions
      enabled (Closes: #959883)
  * Drop compatibility glue from gnome-shell-extension-prefs.
    Upstream added a wrapper script which does something mostly
    equivalent.
  * Install gnome-extensions-app, the new name of
    gnome-shell-extension-prefs, in the gnome-shell-extension-prefs
    package

 -- Marco Trevisan (Treviño) <marco at ubuntu.com>  Fri, 05 Jun 2020
20:20:50 +0200

** Changed in: gnome-shell (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1865300

Title:
  gnome-shell-hotplug-sniffer crashed with SIGSEGV in g_str_hash() from
  g_hash_table_lookup() from deep_count_more_files_callback()

Status in GNOME Shell:
  Unknown
Status in glib2.0 package in Ubuntu:
  Invalid
Status in gnome-shell package in Ubuntu:
  Fix Released
Status in gnome-shell source package in Focal:
  Fix Released

Bug description:
  [ Impact ]

  gnome-shell-hotplug-sniffer crashes when attaching some device that
  may have files with unknown content type

  [ Test case ]

  - Plug a media, but it's not yet known which kind of files cause this issue,
    so we should just monitor the e.u.c crash:
    https://errors.ubuntu.com/problem/2edf29b9677e3de0d55d2114024f39c4c52b45e9

  [ Regression potential ]

  - No valid application for opening a media is shown by gnome-shell

  ---

  This is for 3.34:

  https://errors.ubuntu.com/problem/b6069e75f805530e3c7722835d567cfdb84f2fec

  ---

  Happened during normal use of the desktop.

  ProblemType: CrashDistroRelease: Ubuntu 20.04
  Package: gnome-shell 3.34.3-1ubuntu1
  ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
  Uname: Linux 5.4.0-14-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair wl
  ApportVersion: 2.20.11-0ubuntu18
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Feb 29 19:51:58 2020
  DisplayManager: gdm3
  ExecutablePath: /usr/lib/gnome-shell/gnome-shell-hotplug-sniffer
  InstallationDate: Installed on 2020-01-25 (35 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200117)
  ProcCmdline: /usr/lib/gnome-shell/gnome-shell-hotplug-sniffer
  RelatedPackageVersions: mutter-common 3.34.3-1ubuntu1
  SegvAnalysis:
   Segfault happened at: 0x7f5f54fa6444 <g_str_hash+4>:	movsbl (%rdi),%eax
   PC (0x7f5f54fa6444) ok
   source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11SourcePackage: gnome-shell
  StacktraceTop:
   g_str_hash () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_hash_table_lookup () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? ()
   ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
  Title: gnome-shell-hotplug-sniffer crashed with SIGSEGV in g_str_hash()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo
  separator:

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