[Webkit-unassigned] [Bug 220955] New: Crash from CompositeEditCommand::moveParagraphs() using Position instead of VisiblePosition

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220955

            Bug ID: 220955
           Summary: Crash from CompositeEditCommand::moveParagraphs()
                    using Position instead of VisiblePosition
           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

frame #0: WebCore`WebCore::makeBoundaryPoint(WebCore::VisiblePosition const&)+81
frame #1: WebCore`decltype(makeSimpleRangeHelper(makeBoundaryPointHelper(std::forward<WebCore::VisiblePosition const&>(fp)), makeBoundaryPointHelper(std::forward<WebCore::VisiblePosition&>(fp)))) WebCore::makeSimpleRange<WebCore::VisiblePosition const&, WebCore::VisiblePosition&>(WebCore::VisiblePosition const&, WebCore::VisiblePosition&)+26
frame #2: WebCore`WebCore::CompositeEditCommand::moveParagraphs(WebCore::VisiblePosition const&, WebCore::VisiblePosition const&, WebCore::VisiblePosition const&, bool, bool)+403
frame #3: WebCore`WebCore::InsertListCommand::doApplyForSingleParagraph(bool, WebCore::HTMLQualifiedName const&, WebCore::SimpleRange&)+7504
frame #4: WebCore`WebCore::InsertListCommand::doApply()+7534
frame #5: WebCore`WebCore::CompositeEditCommand::applyCommandToComposite(WTF::Ref<WebCore::EditCommand, WTF::DumbPtrTraits<WebCore::EditCommand> >&&)+79
frame #6: WebCore`WebCore::IndentOutdentCommand::outdentParagraph()+690
frame #7: WebCore`WebCore::IndentOutdentCommand::formatSelection(WebCore::VisiblePosition const&, WebCore::VisiblePosition const&)+220
frame #8: WebCore`WebCore::ApplyBlockElementCommand::doApply()+1256
frame #9: WebCore`WebCore::CompositeEditCommand::apply()+500
frame #10: WebCore`WebCore::executeOutdent(WebCore::Frame&, WebCore::Event*, WebCore::EditorCommandSource, WTF::String const&)+229
frame #11: WebCore`WebCore::Document::execCommand(WTF::String const&, bool, WTF::String const&)+77

The call to makeSimpleRange(start, end) requires non-null VisiblePositions - not non-null Positions.
Similar to bug 220630

<rdar://problem/70880426>

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