Fix sigfpe. Resolves: rhbz#1941627

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

0001-Fix-potential-div0-crash.patch

@@ -0,0 +1,38 @@
+From edba707b32d47977e14f576854f61a0c1a569eab Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
+Date: Mon, 28 Jun 2021 12:12:21 +0400
+Subject: [PATCH spice-gtk] Fix potential div0 crash
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+gdk_monitor_get_geometry() may return 0-size, and leads to crash:
+https://bugzilla.redhat.com/show_bug.cgi?id=1941627
+
+Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+---
+ src/spice-widget.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/src/spice-widget.c b/src/spice-widget.c
+index 7ee02a8..afcf45a 100644
+--- a/src/spice-widget.c
++++ b/src/spice-widget.c
+@@ -1379,9 +1379,11 @@ static void recalc_geometry(GtkWidget *widget)
+         width_mm = gdk_monitor_get_width_mm(monitor);
+         gdk_monitor_get_geometry(monitor, &geometry);
+         /* FIXME: gives wrong results atm: https://gitlab.gnome.org/GNOME/gtk/-/issues/3066 */
+-        width_mm = (width_mm * d->ww / geometry.width) / zoom * scale_factor;
+-        height_mm = (height_mm * d->wh / geometry.height) / zoom * scale_factor;
+-        has_display_mm = true;
++        if (geometry.width > 0 && geometry.height > 0) {
++            width_mm = (width_mm * d->ww / geometry.width) / zoom * scale_factor;
++            height_mm = (height_mm * d->wh / geometry.height) / zoom * scale_factor;
++            has_display_mm = true;
++        }
+     }
+ 
+     DISPLAY_DEBUG(display,
+-- 
+2.29.0
+

spice-gtk.spec

@@ -2,7 +2,7 @@
 
 Name:           spice-gtk
 Version:        0.39
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        A GTK+ widget for SPICE clients
 
 License:        LGPLv2+
@@ -12,6 +12,8 @@ Source0:        https://www.spice-space.org/download/gtk/%{name}-%{version}%{?_v
 Source1:        https://www.spice-space.org/download/gtk/%{name}-%{version}%{?_version_suffix}.tar.xz.sig
 Source2:        victortoso-E37A484F.keyring
 
+Patch0001:      0001-Fix-potential-div0-crash.patch
+
 BuildRequires: git-core
 BuildRequires: meson
 BuildRequires: intltool
@@ -196,6 +198,9 @@ gpgv2 --quiet --keyring %{SOURCE2} %{SOURCE1} %{SOURCE0}
 %{_bindir}/spicy-stats
 
 %changelog
+* Mon Jun 28 2021 Marc-André Lureau <marcandre.lureau@redhat.com> - 0.39-3
+- Fix potential div/0. Resolves: rhbz#1941627
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.39-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild