Package: libgtk2.0-0
Version: 2.8.18-1
Severity: important
(This code is the same in 2.8.20 at the same line numbers)
(The code is in 2.10.2 starting at line 711 instead of 744)
These lines:
744 normalized_string = g_utf8_normalize (item, -1, G_NORMALIZE_ALL);
745 case_normalized_string = g_utf8_casefold (normalized_string, -1);
746
747 if (!strncmp (key, case_normalized_string, strlen (key)))
748 ret = TRUE;
(gdb) print item
$5 = (gchar *) 0x34dc630 "#PC���"
(gdb) print normalized_string
$6 = (gchar *) 0x0
(gdb) print case_normalized_string
$7 = (gchar *) 0x0
You can guess what happens when NULL is passed to strncmp on line 747.
Segfault.
The utf8 normalize is failing, I suppose, because item is not valid
utf-8:
(gdb) x/8xb item
0x34dc630: 0x23 0x50 0x43 0xb8 0xed 0xc1 0xb6 0x00
This is apparently a font name, and is causing Inkscape to crash.
BTW: I'm attaching a patch, but there is probably a better solution.
Probably at least a warning should be printed.
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (500, 'testing'), (130, 'unstable'), (120, 'experimental')
Architecture: amd64 (x86_64)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-amd64
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages libgtk2.0-0 depends on:
ii libatk1.0-0 1.12.1-1 The ATK accessibility toolkit
ii libc6 2.3.6-15 GNU C Library: Shared libraries
ii libcairo2 1.2.2-1 The Cairo 2D vector graphics libra
ii libfontconfig1 2.3.2-7 generic font configuration library
ii libglib2.0-0 2.10.3-3 The GLib library of C routines
ii libgtk2.0-0 2.8.18-1 The GTK+ graphical user interface
ii libgtk2.0-bin 2.8.18-1 The programs for the GTK+ graphica
ii libgtk2.0-common 2.8.18-1 Common files for the GTK+ graphica
ii libjpeg62 6b-13 The Independent JPEG Group's JPEG
ii libpango1.0-0 1.12.3-1+b1 Layout and rendering of internatio
ii libpng12-0 1.2.8rel-5.2 PNG library - runtime
ii libtiff4 3.8.2-6 Tag Image File Format (TIFF) libra
ii libx11-6 2:1.0.0-8 X11 client-side library
ii libxcursor1 1.1.5.2-5 X cursor management library
ii libxext6 1:1.0.0-4 X11 miscellaneous extension librar
ii libxfixes3 1:3.0.1.2-4 X11 miscellaneous 'fixes' extensio
ii libxi6 1:1.0.0-5 X11 Input extension library
ii libxinerama1 1:1.0.1-4 X11 Xinerama extension library
ii libxrandr2 2:1.1.0.2-4 X11 RandR extension library
ii libxrender1 1:0.9.0.2-4 X Rendering Extension client libra
Versions of packages libgtk2.0-0 recommends:
ii hicolor-icon-theme 0.8-4 default fallback theme for FreeDes
-- no debconf information
diff -rdbU3 gtk+-2.8.18.orig/gtk/gtkentrycompletion.c
gtk+-2.8.18/gtk/gtkentrycompletion.c
--- gtk+-2.8.18.orig/gtk/gtkentrycompletion.c 2006-02-10 14:21:58.000000000
-0500
+++ gtk+-2.8.18/gtk/gtkentrycompletion.c 2006-08-21 22:40:44.000000000
-0400
@@ -744,7 +744,7 @@
normalized_string = g_utf8_normalize (item, -1, G_NORMALIZE_ALL);
case_normalized_string = g_utf8_casefold (normalized_string, -1);
- if (!strncmp (key, case_normalized_string, strlen (key)))
+ if (case_normalized_string && !strncmp (key, case_normalized_string,
strlen (key)))
ret = TRUE;
g_free (item);
