Bug#740882: gir1.2-gdkpixbuf-2.0: Systematic segfault when trying to execute 'gnome-control-center background'

[Emmanuel Fleury]

Package: gir1.2-gdkpixbuf-2.0
Version: 2.30.5-1
Severity: important

I have seen this behavior since my last update to 2.30.5 version on my
two machines. It is totally reproducible and occurs at each attempt.

Yet, the crash occurs in /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 but,
the failure may comes from other places (e.g. the gnome-control center).

In the Gnome environment, the background is replaced by a solid color
(gray) with no image displayed at all.

When attempting to set the background image through the
gnome-control-center, the software crash.

Here are more details:


root at beagle:~# tail -f /var/log/messages
Mar  5 19:18:28 beagle kernel: [   92.918008] gnome-control-c[5064]:
segfault at 26bc000 ip 00007f4fc4656894 sp 00007fff5cb8c900 error 4 in
libgdk-3.so.0.1000.7[7f4fc4629000+ab000]
Mar  5 19:23:49 beagle kernel: [  414.266984] gnome-control-c[5233]:
segfault at 2183000 ip 00007f680d2df894 sp 00007fff82d41710 error 4 in
libgdk-3.so.0.1000.7[7f680d2b2000+ab000]
Mar  5 19:24:02 beagle kernel: [  427.049226] gnome-control-c[5245]:
segfault at 2f81000 ip 00007f93b7782894 sp 00007fff44047c20 error 4 in
libgdk-3.so.0.1000.7[7f93b7755000+ab000]
Mar  5 19:24:43 beagle kernel: [  468.088191] gnome-control-c[5316]:
segfault at 2e39000 ip 00007f7ac4ce8894 sp 00007fff3d773cc0 error 4 in
libgdk-3.so.0.1000.7[7f7ac4cbb000+ab000]
Mar  5 19:26:10 beagle kernel: [  555.609458] gnome-control-c[5337]:
segfault at 2445000 ip 00007fecb59f5894 sp 00007fffec8ad0f0 error 4 in
libgdk-3.so.0.1000.7[7fecb59c8000+ab000]
Mar  5 19:28:48 beagle kernel: [  713.044324] gnome-control-c[5412]:
segfault at 2a83000 ip 00007f72ecc0b894 sp 00007fff912ad9c0 error 4 in
libgdk-3.so.0.1000.7[7f72ecbde000+ab000]

When run under gdb and triggered to go to the background settings:

(gdb) r
Starting program: /usr/bin/gnome-control-center
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffd23ce700 (LWP 5443)]
[New Thread 0x7fffc1c32700 (LWP 5444)]
[New Thread 0x7fffc1431700 (LWP 5445)]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff219e894 in gdk_pixbuf_get_from_surface ()
   from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
(gdb) bt
#0  0x00007ffff219e894 in gdk_pixbuf_get_from_surface ()
   from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#1  0x000000000045a4bc in ?? ()
#2  0x00007ffff1c58a57 in g_simple_async_result_complete ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007ffff1ca913a in ?? () from
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffff1c58a57 in g_simple_async_result_complete ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007ffff1c58ab9 in ?? () from
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007ffff0d48526 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007ffff0d48878 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffff0d4891c in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff1c84a1c in g_application_run ()
   from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00000000004498c8 in main ()
(gdb) i f
Stack level 0, frame at 0x7fffffffdf80:
 rip = 0x7ffff219e894 in gdk_pixbuf_get_from_surface; saved rip 0x45a4bc
 called by frame at 0x7fffffffdfd0
 Arglist at 0x7fffffffdf18, args:
 Locals at 0x7fffffffdf18, Previous frame's sp is 0x7fffffffdf80
 Saved registers:
  rbx at 0x7fffffffdf48, rbp at 0x7fffffffdf50, r12 at 0x7fffffffdf58,
  r13 at 0x7fffffffdf60, r14 at 0x7fffffffdf68, r15 at 0x7fffffffdf70,
  rip at 0x7fffffffdf78
(gdb)

I can provide more information, but you need to tell me where to look
because the bug seems to be between the gnome-control-center and the
library... Don't know exactly where...


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.13.5 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash