[Mesa-dev] [Bug 88962] [osmesa] Crash on postprocessing if z buffer is NULL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88962

            Bug ID: 88962
           Summary: [osmesa] Crash on postprocessing if z buffer is NULL
           Product: Mesa
           Version: git
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Other
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: pjm0616 at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

It seems that z buffer is not optional to pp_run looking at other codes
but it is not checked in osmesa_st_framebuffer_flush_front().

It crashes if zsbuf is NULL with pp_jimenezmlaa. With pp_nored it doesn't
crash,
but if pipe_sampler_view.reference is not the first member in
struct pipe_sampler_view, it would crash in pipe_sampler_view_reference at
>   if (pipe_reference_described(&(*ptr)->reference, &view->reference,
>                                (debug_reference_descriptor)debug_describe_sampler_view))

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