[Webkit-unassigned] [Bug 251888] New: Attribute change results in assertion failure checking for parent node for a parent less element.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251888

            Bug ID: 251888
           Summary: Attribute change results in assertion failure checking
                    for parent node for a parent less element.
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: arunsundar_kannan at apple.com

Created attachment 464898

  --> https://bugs.webkit.org/attachment.cgi?id=464898&action=review

HTML for reproduction

Attribute change results in assertion failure checking for parent node for a parent less element.


ASSERTION FAILED: m_ptr
/Users/arunsundarkannan/webkit/OpenSource/WebKitBuild/Debug/usr/local/include/wtf/RefPtr.h(83) : T &WTF::RefPtr<WebCore::ContainerNode>::operator*() const [T = WebCore::ContainerNode, _PtrTraits = WTF::RawPtrTraits<WebCore::ContainerNode>, _RefDerefTraits = WTF::DefaultRefDerefTraits<WebCore::ContainerNode>]
1   0x12f38c908 WTFCrash
2   0x144bf5714 WTFCrashWithInfo(int, char const*, char const*, int)
3   0x147d16748 WTF::RefPtr<WebCore::ContainerNode, WTF::RawPtrTraits<WebCore::ContainerNode>, WTF::DefaultRefDerefTraits<WebCore::ContainerNode> >::operator*() const
4   0x148288900 WebCore::HTMLSourceElement::parseAttribute(WebCore::QualifiedName const&, WTF::AtomString const&)
5   0x147d78248 WebCore::Element::attributeChanged(WebCore::QualifiedName const&, WTF::AtomString const&, WTF::AtomString const&, WebCore::Element::AttributeModificationReason)
6   0x147f0a380 WebCore::StyledElement::attributeChanged(WebCore::QualifiedName const&, WTF::AtomString const&, WTF::AtomString const&, WebCore::Element::AttributeModificationReason)
7   0x148288bec WebCore::HTMLSourceElement::attributeChanged(WebCore::QualifiedName const&, WTF::AtomString const&, WTF::AtomString const&, WebCore::Element::AttributeModificationReason)
8   0x147d87594 WebCore::Element::didModifyAttribute(WebCore::QualifiedName const&, WTF::AtomString const&, WTF::AtomString const&)
9   0x147d773c8 WebCore::Element::setAttributeInternal(unsigned int, WebCore::QualifiedName const&, WTF::AtomString const&, WebCore::Element::SynchronizationOfLazyAttribute)
10  0x147d77920 WebCore::Element::setAttributeWithoutSynchronization(WebCore::QualifiedName const&, WTF::AtomString const&)
11  0x1455d85bc WebCore::setJSHTMLSourceElement_typeSetter(JSC::JSGlobalObject&, WebCore::JSHTMLSourceElement&, JSC::JSValue)::'lambda'()::operator()() const

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