[Webkit-unassigned] [Bug 121020] New: Crash on shape-outside when using calc()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=121020

           Summary: Crash on shape-outside when using calc()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: krit at webkit.org
                CC: giles_joplin at yahoo.com, bjonesbe at adobe.com


Created an attachment (id=211010)
 --> (https://bugs.webkit.org/attachment.cgi?id=211010&action=review)
Crash test

When a users specifies the shape-outside property with calc(), the browser crashes:

-webkit-shape-outside: circle(50%, 50%, calc(50% - 20px));

Stack:

1   0x10778a4d0 WTFCrash
2   0x109664cfd WebCore::floatValueForLength(WebCore::Length const&, float, WebCore::RenderView*)
3   0x109c08029 WebCore::Shape::createShape(WebCore::BasicShape const*, WebCore::LayoutSize const&, WebCore::WritingMode, WebCore::Length, WebCore::Length)
4   0x109c0b115 WebCore::ShapeInfo<WebCore::RenderBlock, &(WebCore::RenderStyle::resolvedShapeInside() const), &(WebCore::Shape::getIncludedIntervals(WebCore::LayoutUnit, WebCore::LayoutUnit, WTF::Vector<WebCore::LineSegment, 0ul, WTF::CrashOnOverflow>&) const)>::computedShape() const
5   0x1098712b1 WebCore::ShapeInsideInfo::computedShapeLogicalBoundingBox() const
6   0x10986d251 WebCore::ShapeInfo<WebCore::RenderBlock, &(WebCore::RenderStyle::resolvedShapeInside() const), &(WebCore::Shape::getIncludedIntervals(WebCore::LayoutUnit, WebCore::LayoutUnit, WTF::Vector<WebCore::LineSegment, 0ul, WTF::CrashOnOverflow>&) const)>::shapeLogicalTop() const
7   0x10987881b WebCore::RenderBlock::layoutRunsAndFloatsInRange(WebCore::LineLayoutState&, WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::InlineIterator const&, WebCore::BidiStatus const&, unsigned int)

BasicShapeFunction.cpp:114 static Length convertToLength(...

does not have CalculatedConversion as possible type.

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