[Webkit-unassigned] [Bug 58429] New: [GTK] Missing nullchecks in GTK's a11y wrapper

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=58429

           Summary: [GTK] Missing nullchecks in GTK's a11y wrapper
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: msanchez at igalia.com
                CC: mrobinson at webkit.org


There are several places in the AccessibilityObjectWrapperAtk.cpp file where we are not null-checking the return of calling to coreObject->document() (coreObject as an instance of AccessibilityObject) and we're using it rightaway, assuming it won't ever be NULL, even though 'experience' tells us it can happen (I've observed some crashes recently because of that)

Hence, it would be good to add some extra checks to prevent these situations.

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