[Webkit-unassigned] [Bug 52796] New: [Qt][WK2] Null ptr deref in UI process after web process has crashed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=52796

           Summary: [Qt][WK2] Null ptr deref in UI process after web
                    process has crashed
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kimmo.t.kinnunen at nokia.com


UI process creates a redundant drawing area during initialization. This is only used to pass drawing area type until QWKPagePrivate::createDrawingArea() is called.

Side-effect of this is that when web process dies and ui process re-initializes the connection, the new createDrawingArea() call refers to invalid ptr and thus ui process crashes. 

Introduced in:
https://bugs.webkit.org/show_bug.cgi?id=52184

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