[xml/sgml-pkgs] Bug#496125: Bug#496125: libxml2: security fix does double free / segfaults (breaks Gnome apps)

Mike Hommey mh at glandium.org
Sun Aug 24 07:54:10 UTC 2008

On Sun, Aug 24, 2008 at 09:27:50AM +0200, Christian Jaeger wrote:
> Mike Hommey wrote:
>> Now, try changing your gnome theme and re-run galeon ; if i'm correct,
>> it shouldn't crash. Can you tell me what package this svg file belongs
>> to ?
> Yes, the segfaults happen only in the "Gorilla" and "Wasp" themes (apps  
> did start when running the Amaranth, Clearlooks, Crux, Glider, Glossy,  
> Industrial, Lush, Mist, Nuvola, SphereCrystal themes).
> With Gorilla the svg file in question is  
> /usr/share/icons/Gorilla/scalable/actions/gtk-jump-to-ltr.svg
> # dpkgS is a script which resolves symlinks and then looks it up with dpkg -S
> chris at novo:~$ dpkgS /usr/share/icons/Gorilla/scalable/actions/gtk-jump-to-ltr.svg
> gnome-themes-extras: /usr/share/icons/Gorilla/scalable/actions/go-jump.svg
> chris at novo:~$ dpkgS /usr/share/icons/Wasp/scalable/actions/gtk-go-back-ltr.svg
> gnome-themes-extras: /usr/share/icons/Wasp/scalable/actions/go-previous.svg
> chris at novo:/tmp/chris$ xmllint /usr/share/icons/Gorilla/scalable/actions/gtk-jump-to-ltr.svg > svg
> chris at novo:/tmp/chris$ echo $?
> 0
> What this file does *not* share with the one from the Wasp theme, is  
> that xmllint not even outputs a warning.
> Not sure what to conclude from this. Except that it might be a bug in  
> one of these packages:
> $ dpkgS /usr/lib/librsvg-2.so.2
> librsvg2-2: /usr/lib/librsvg-2.so.2.22.2
> $ dpkgS /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so
> librsvg2-common: /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so
>> PS: You galeon crash with the unstable version is unrelated.
> Are you sure? Why? Galeon did't segfault for me on quit before the  
> latest upgrade (sure, Galeon itself or any of it's other dependencies  
> could also have been upgraded).

Take a look at the backtrace, it doesn't involve libxml2.

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