[Webkit-unassigned] [Bug 224259] New: Nullptr dereference in ReplaceSelectionCommand::removeRedundantStylesAndKeepStyleSpanInline

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=224259

            Bug ID: 224259
           Summary: Nullptr dereference in
                    ReplaceSelectionCommand::removeRedundantStylesAndKeepS
                    tyleSpanInline
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: julian_a_gonzalez at apple.com
                CC: rniwa at webkit.org, wenson_hsieh at apple.com

e.g.

    #0 0x114f9e976 in WebCore::ReplaceSelectionCommand::removeRedundantStylesAndKeepStyleSpanInline(WebCore::ReplaceSelectionCommand::InsertedNodes&)
    #1 0x114faf0c0 in WebCore::ReplaceSelectionCommand::doApply()
    #2 0x114d83d80 in WebCore::CompositeEditCommand::apply()
    #3 0x114f2b7ab in WebCore::executeInsertFragment(WebCore::Frame&, WTF::Ref<WebCore::DocumentFragment, WTF::RawPtrTraits<WebCore::DocumentFragment> >&&)
    #4 0x114f207d5 in WebCore::executeInsertHTML(WebCore::Frame&, WebCore::Event*, WebCore::EditorCommandSource, WTF::String const&)
    #5 0x1149f779e in WebCore::Document::execCommand(WTF::String const&, bool, WTF::String const&)

<rdar://problem/76003461>

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