[LBSE] Fix null-pointer access in SVGGraphicsElement::didAttachRender…

…ers() https://bugs.webkit.org/show_bug.cgi?id=244798 Reviewed by Rob Buis. Add missing layer() null check in didAttachRenderers. * Source/WebCore/svg/SVGGraphicsElement.cpp: (WebCore::SVGGraphicsElement::didAttachRenderers): Canonical link: https://commits.webkit.org/254161@main
WebKit · Sep 5, 2022 · d05d7a2 · d05d7a2
1 parent 54560c5
commit d05d7a2
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/Source/WebCore/svg/SVGGraphicsElement.cpp b/Source/WebCore/svg/SVGGraphicsElement.cpp
@@ -199,8 +199,10 @@ void SVGGraphicsElement::didAttachRenderers()
 {
 #if ENABLE(LAYER_BASED_SVG_ENGINE)
     if (document().settings().layerBasedSVGEngineEnabled()) {
-        if (auto* svgRenderer = dynamicDowncast<RenderLayerModelObject>(renderer()); svgRenderer && lineageOfType<RenderSVGHiddenContainer>(*svgRenderer).first())
-            svgRenderer->layer()->dirtyVisibleContentStatus();
+        if (auto* svgRenderer = dynamicDowncast<RenderLayerModelObject>(renderer()); svgRenderer && lineageOfType<RenderSVGHiddenContainer>(*svgRenderer).first()) {
+            if (auto* layer = svgRenderer->layer())
+                layer->dirtyVisibleContentStatus();
+        }
     }
 #endif
 }