ghex crashed with SIGSEGV in cairo_region_is_empty()

[Sune Keller]

Tried to get a grip of overlay scrollbar, crashed.

1) $ lsb_release -rd
Description: Ubuntu quantal (development branch)
Release: 12.10

2) $ apt-cache policy ghex
ghex:
  Installed: 3.5.2-0ubuntu1
  Candidate: 3.5.2-0ubuntu1
  Version table:
 *** 3.5.2-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ quantal/universe amd64 Packages
        100 /var/lib/dpkg/status

3) Expected a handle to pop appear for me to drag and scroll with

4) GHex crashed.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: ghex 3.5.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
Uname: Linux 3.5.0-8-generic x86_64
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
CheckboxSubmission: 22bb928b27ea2a6258319069265d6f8b
CheckboxSystem: 13d06691acf655d5e27c3bafb5fa8769
Date: Wed Aug 8 10:23:27 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/ghex
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110308)
ProcCmdline: ghex
SegvAnalysis:
 Segfault happened at: 0x7ff9e3851aa0 <cairo_region_is_empty>: mov 0x4(%rdi),%edx
 PC (0x7ff9e3851aa0) ok
 source "0x4(%rdi)" (0x00000004) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: ghex
StacktraceTop:
 cairo_region_is_empty () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/liboverlay-scrollbar.so
 ?? () from /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/liboverlay-scrollbar.so
 ?? () from /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/liboverlay-scrollbar.so
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
Title: ghex crashed with SIGSEGV in cairo_region_is_empty()
UpgradeStatus: Upgraded to quantal on 2012-02-05 (184 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 INT_cairo_region_is_empty (region=0x0) at /build/buildd/cairo-1.12.2/src/cairo-region.c:815
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate a useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

libdconf1 version 0.13.4-0ubuntu2 required, but 0.13.5-0ubuntu1 is available
dconf-service version 0.13.4-0ubuntu2 required, but 0.13.5-0ubuntu1 is available
dconf-gsettings-backend version 0.13.4-0ubuntu2 required, but 0.13.5-0ubuntu1 is available

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!