From f2b6a6b2f6e9013a57efbda5cfea944558131aa4 Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Mon, 20 Sep 2021 14:23:18 +0300
Subject: [PATCH] scenes/opengl: Fix null dereference in
 OpenGLWindow::windowTexture()

If the SurfaceItem has no SurfacePixmap, kwin will crash when trying to
access the surface texture.

BUG: 437709
---
 src/plugins/scenes/opengl/scene_opengl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/scenes/opengl/scene_opengl.cpp b/src/plugins/scenes/opengl/scene_opengl.cpp
index db52c74ce7..aa899c68f2 100644
--- a/src/plugins/scenes/opengl/scene_opengl.cpp
+++ b/src/plugins/scenes/opengl/scene_opengl.cpp
@@ -1137,7 +1137,7 @@ QSharedPointer<GLTexture> OpenGLWindow::windowTexture()
     PlatformOpenGLSurfaceTexture *frame = nullptr;
     const SurfaceItem *item = surfaceItem();
 
-    if (item) {
+    if (item && item->pixmap()) {
         frame = static_cast<PlatformOpenGLSurfaceTexture *>(item->pixmap()->platformTexture());
     }