libwnck3/trunk/0001-handle-avoid-segfault-in-invalidate_icons.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Alberts=20Muktup=C4=81vels?= <alberts.muktupavels@gmail.com>
   3 Date: Tue, 20 Sep 2022 15:40:22 +0300
   4 Subject: [PATCH] handle: avoid segfault in invalidate_icons
   5
   6 Screens variable won't be initialized if default icon sizes are
   7 set/changed before using wnck_screen_get_default.
   8
   9 https://bugs.launchpad.net/ubuntu/+source/libwnck3/+bug/1990263
  10 ---
  11  libwnck/wnck-handle.c | 3 +++
  12  1 file changed, 3 insertions(+)
  13
  14 diff --git a/libwnck/wnck-handle.c b/libwnck/wnck-handle.c
  15 index e12ff8825045..8d5da45c8787 100644
  16 --- a/libwnck/wnck-handle.c
  17 +++ b/libwnck/wnck-handle.c
  18 @@ -70,6 +70,9 @@ invalidate_icons (WnckHandle *self)
  19    Display *xdisplay;
  20    int i;
  21
  22 +  if (self->screens == NULL)
  23 +    return;
  24 +
  25    xdisplay = _wnck_get_default_display ();
  26
  27    for (i = 0; i < ScreenCount (xdisplay); ++i)