gnome-flashback crashed with SIGSEGV in g_str_equal()

[Nick Tait]

N/A

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-flashback 3.26.0-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME-Flashback:GNOME
Date: Sat Oct 21 22:47:16 2017
ExecutablePath: /usr/bin/gnome-flashback
InstallationDate: Installed on 2014-05-04 (1266 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcCmdline: gnome-flashback
ProcEnviron:
 LANGUAGE=en_NZ:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_NZ.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f5a0634f816 <__strcmp_sse2+22>: movlpd (%rdi),%xmm1
 PC (0x7f5a0634f816) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-flashback
StacktraceTop:
 g_str_equal () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? ()
 ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 g_cclosure_marshal_generic () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: gnome-flashback crashed with SIGSEGV in g_str_equal()
UpgradeStatus: Upgraded to artful on 2017-10-21 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev quaggavty sambashare sudo wireshark

[Apport retracing service (apport)]

StacktraceTop:
 g_str_equal (v1=v1@entry=0x0, v2=<optimized out>) at ../../../../glib/ghash.c:1852
 handle_ungrab_accelerator (dbus_shell=0x55d622a29990, invocation=0x7f59f40631c0, action=38, user_data=<optimized out>) at flashback-shell.c:380
 ffi_call_unix64 () at ../src/x86/unix64.S:76
 ffi_call (cif=cif@entry=0x7ffc70d2d4b0, fn=fn@entry=0x55d620f928c0 <handle_ungrab_accelerator>, rvalue=<optimized out>, avalue=avalue@entry=0x7ffc70d2d3c0) at ../src/x86/ffi64.c:525
 g_cclosure_marshal_generic (closure=0x55d622a15aa0, return_gvalue=0x7ffc70d2d680, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../../../../gobject/gclosure.c:1490

[Launchpad Janitor (janitor)]

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

[Alberts Muktupāvels (muktupavels)]

https://gitlab.gnome.org/GNOME/gnome-flashback/commit/bd970ecf9cbebebcabc8befad2df83132a1920c4

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-flashback - 3.30.0-1ubuntu3

---------------
gnome-flashback (3.30.0-1ubuntu3) disco; urgency=medium

  * Backport upstream patch to fix segfault in handle_ungrab_accelerator()
    (fix-handle-ungrab-crash.diff; LP: #1725830).

 -- Dmitry Shachnev <email address hidden> Thu, 22 Nov 2018 15:48:24 +0300