diff --git a/gzdoom-sdlbug.patch b/gzdoom-sdlbug.patch
new file mode 100644
index 0000000..a6ddd73
--- /dev/null
+++ b/gzdoom-sdlbug.patch
@@ -0,0 +1,35 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2020-06-12 02:05:34.009865606 +0200
+
+When a SDL_PollEvent is sandwiched between SDL_CreateWindow and
+SDL_CreateRenderer, SDL crashes during SDL_IME_PumpEvents because dbus message
+still references the old window (still exists and pointer is non-NULL) and
+tries to access members of window->driverdata (block was freed and pointer is
+NULL.)
+
+Workaround this by recreating the SDL_Window object and immediately afterwards
+creating the renderer.
+
+This crash only happens for gzdoom when running with the SoftPoly rasterizer,
+as that is the only place that issues SDL_CreateRenderer after the mainloop has
+started.
+
+Needs a bugreport on libsdl.org.
+
+---
+ src/common/platform/posix/sdl/sdlglvideo.cpp |    2 ++
+ 1 file changed, 2 insertions(+)
+
+Index: gzdoom-g4.4.1/src/common/platform/posix/sdl/sdlglvideo.cpp
+===================================================================
+--- gzdoom-g4.4.1.orig/src/common/platform/posix/sdl/sdlglvideo.cpp
++++ gzdoom-g4.4.1/src/common/platform/posix/sdl/sdlglvideo.cpp
+@@ -294,6 +294,8 @@ uint8_t *I_PolyPresentLock(int w, int h,
+ 	{
+ 		polyvsync = vsync;
+ 
++		Priv::DestroyWindow();
++		Priv::CreateWindow(Priv::VulkanWindowFlag | (Priv::softpolyEnabled ? SDL_WINDOW_HIDDEN : 0));
+ 		polyrendertarget = SDL_CreateRenderer(Priv::window, -1, vsync ? SDL_RENDERER_PRESENTVSYNC : 0);
+ 		if (!polyrendertarget)
+ 		{
diff --git a/gzdoom.changes b/gzdoom.changes
index 9550d99..49f6659 100644
--- a/gzdoom.changes
+++ b/gzdoom.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Jun 12 00:26:10 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
+
+- Add gzdoom-sdlbug.patch.
+
 -------------------------------------------------------------------
 Thu Jun 11 15:19:30 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/gzdoom.spec b/gzdoom.spec
index 3acffcd..15ceb80 100644
--- a/gzdoom.spec
+++ b/gzdoom.spec
@@ -30,7 +30,8 @@ Patch1:         gzdoom-waddir.patch
 Patch2:         gzdoom-lzma.patch
 Patch3:         gzdoom-asmjit.patch
 Patch4:         gzdoom-spirv.patch
-Patch5:         gzdoom-vulkan.patch
+Patch5:         gzdoom-sdlbug.patch
+Patch6:         gzdoom-vulkan.patch
 BuildRequires:  cmake >= 2.8.7
 BuildRequires:  gcc-c++
 BuildRequires:  libjpeg-devel
@@ -77,9 +78,9 @@ GZDoom is a port (a modification) of the original Doom source code, featuring:
 
 %prep
 %setup -qn %name-g%version
-%patch -P 1 -P 2 -P 3 -P 4 -p1
+%patch -P 1 -P 2 -P 3 -P 4 -P 5 -p1
 %if 0%{?sle_version} >= 150200
-%patch -P 5 -p1
+%patch -P 6 -p1
 rm -Rf glslang src/common/rendering/vulkan/thirdparty/vulkan
 %endif
 perl -i -pe 's{__DATE__}{""}g' src/posix/sdl/i_main.cpp