Fix fortify fail in gsd-color-manager.c (#714625)

This commit is contained in:
Tomas Bzatek 2011-06-21 12:49:19 +02:00
parent 817bbfa478
commit a3f21c1849
2 changed files with 89 additions and 1 deletions

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@ -0,0 +1,81 @@
From ac60d0ae037096859cf452d074e9bd345974c786 Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Mon, 20 Jun 2011 16:41:28 +0000
Subject: color: Fix a potential buffer-overflow when converting to wide text
Thanks to fortify protection, g-s-d fails to build for some distros.
Copy the fix from Colin that went into colord a few days ago.
---
diff --git a/plugins/color/gsd-color-manager.c b/plugins/color/gsd-color-manager.c
index 0b1c882..0391175 100644
--- a/plugins/color/gsd-color-manager.c
+++ b/plugins/color/gsd-color-manager.c
@@ -87,10 +87,10 @@ typedef struct {
GQuark
gsd_color_manager_error_quark (void)
{
- static GQuark quark = 0;
- if (!quark)
- quark = g_quark_from_static_string ("gsd_color_manager_error");
- return quark;
+ static GQuark quark = 0;
+ if (!quark)
+ quark = g_quark_from_static_string ("gsd_color_manager_error");
+ return quark;
}
static GcmEdid *
@@ -492,17 +492,46 @@ out:
}
#ifdef HAVE_NEW_LCMS
+static wchar_t *
+utf8_to_wchar_t (const char *src)
+{
+ gsize len;
+ gsize converted;
+ wchar_t *buf = NULL;
+
+ len = mbstowcs (NULL, src, 0);
+ if (len < 0) {
+ g_warning ("Invalid UTF-8 in string %s", src);
+ goto out;
+ }
+ len += 1;
+ buf = g_malloc (sizeof (wchar_t) * len);
+ converted = mbstowcs (buf, src, len - 1);
+ g_assert (converted != -1);
+ buf[converted] = '\0';
+out:
+ return buf;
+}
+
static cmsBool
_cmsDictAddEntryAscii (cmsHANDLE dict,
const gchar *key,
const gchar *value)
{
- cmsBool ret;
- wchar_t mb_key[1024];
- wchar_t mb_value[1024];
- mbstowcs (mb_key, key, sizeof (mb_key));
- mbstowcs (mb_value, value, sizeof (mb_value));
+ cmsBool ret = FALSE;
+ wchar_t *mb_key = NULL;
+ wchar_t *mb_value = NULL;
+
+ mb_key = utf8_to_wchar_t (key);
+ if (mb_key == NULL)
+ goto out;
+ mb_value = utf8_to_wchar_t (value);
+ if (mb_value == NULL)
+ goto out;
ret = cmsDictAddEntry (dict, mb_key, mb_value, NULL, NULL);
+out:
+ g_free (mb_key);
+ g_free (mb_value);
return ret;
}
#endif /* HAVE_NEW_LCMS */
--
cgit v0.9

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@ -1,6 +1,6 @@
Name: gnome-settings-daemon
Version: 3.1.2
Release: 1%{?dist}
Release: 2%{?dist}
Summary: The daemon sharing settings from GNOME to GTK+/KDE applications
Group: System Environment/Daemons
@ -9,6 +9,9 @@ URL: http://download.gnome.org/sources/%{name}
#VCS: git:git://git.gnome.org/gnome-settings-daemon
Source: http://download.gnome.org/sources/%{name}/3.1/%{name}-%{version}.tar.xz
# from upstream
Patch0: gnome-settings-daemon-3.1.3-color-widestring.patch
Requires(pre): GConf2 >= 2.14
Requires(preun): GConf2 >= 2.14
Requires(post): GConf2 >= 2.14
@ -57,6 +60,7 @@ developing applications that use %{name}.
%prep
%setup -q
%patch0 -p1 -b .color-wide
# autoreconf -i -f
@ -210,6 +214,9 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :
%{_datadir}/gnome-settings-daemon-3.0/input-device-example.sh
%changelog
* Tue Jun 21 2011 Tomas Bzatek <tbzatek@redhat.com> - 3.1.2-2
- Fix fortify fail in gsd-color-manager.c (#714625)
* Wed Jun 15 2011 Tomas Bzatek <tbzatek@redhat.com> - 3.1.2-1
- Update to 3.1.2