[Webkit-unassigned] [Bug 62587] New: [Texmap] [Qt] [WK2] Unsync in TextureMapperNode between parent and child lists cause crashes on WK2.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=62587

           Summary: [Texmap] [Qt] [WK2] Unsync in TextureMapperNode
                    between parent and child lists cause crashes on WK2.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ostapenko.viatcheslav at nokia.com


In TextureMapperNode::syncCompositingStateSelf in ParentChange "if" statement m_parent gets overwritten 1st and node gets removed from new m_parent child list and never added.

In ChildrenChange m_children list gets cleared, but m_parent members of child nodes are not cleared.

This cause unsync in m_children <-> m_parent linkage and random crashes mostly ~TextureMapperNode(), but also in other places when already deallocated node gets referenced because it wasn't removed from child list.

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