[Webkit-unassigned] [Bug 205165] New: Uninitialized variables in RenderLayer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205165

            Bug ID: 205165
           Summary: Uninitialized variables in RenderLayer
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Caught by valgrind:

==134047== Conditional jump or move depends on uninitialised value(s)
==134047==    at 0x7DD9B96: WebCore::RenderLayer::setIsCSSStackingContext(bool) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7DE8F7D: WebCore::RenderLayer::RenderLayer(WebCore::RenderLayerModelObject&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7E34150: WebCore::RenderLayerModelObject::createLayer() (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7E34B1B: WebCore::RenderLayerModelObject::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7D5BD36: WebCore::RenderBox::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7D5D0AD: WebCore::RenderBlock::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7D5D417: WebCore::RenderBlockFlow::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7FBA6D2: WebCore::RenderTreeUpdater::createRenderer(WebCore::Element&, WebCore::RenderStyle&&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7FBA961: WebCore::RenderTreeUpdater::updateElementRenderer(WebCore::Element&, WebCore::Style::ElementUpdate const&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7FBBFCE: WebCore::RenderTreeUpdater::updateRenderTree(WebCore::ContainerNode&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x7FBC70A: WebCore::RenderTreeUpdater::commit(std::unique_ptr<WebCore::Style::Update const, std::default_delete<WebCore::Style::Update const> >) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047==    by 0x750BDB5: WebCore::Document::resolveStyle(WebCore::Document::ResolveStyleType) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==134047== 

==133221== Conditional jump or move depends on uninitialised value(s)
==133221==    at 0x7DD9CCF: WebCore::RenderLayer::setIsNormalFlowOnly(bool) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7DE8F6A: WebCore::RenderLayer::RenderLayer(WebCore::RenderLayerModelObject&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7E34150: WebCore::RenderLayerModelObject::createLayer() (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7E34B1B: WebCore::RenderLayerModelObject::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7D5BD36: WebCore::RenderBox::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7D5D0AD: WebCore::RenderBlock::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7D5D417: WebCore::RenderBlockFlow::styleDidChange(WebCore::StyleDifference, WebCore::RenderStyle const*) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7FBA6D2: WebCore::RenderTreeUpdater::createRenderer(WebCore::Element&, WebCore::RenderStyle&&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7FBA961: WebCore::RenderTreeUpdater::updateElementRenderer(WebCore::Element&, WebCore::Style::ElementUpdate const&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7FBBFCE: WebCore::RenderTreeUpdater::updateRenderTree(WebCore::ContainerNode&) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x7FBC70A: WebCore::RenderTreeUpdater::commit(std::unique_ptr<WebCore::Style::Update const, std::default_delete<WebCore::Style::Update const> >) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==    by 0x750BDB5: WebCore::Document::resolveStyle(WebCore::Document::ResolveStyleType) (in /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37.42.0)
==133221==

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