Re: [PATCH v5 0/1] MR10929: gdi32: Validate count parameter in ExtCreateRegion

[Bartosz Kosiorek (＠gang65)]

Bartosz Kosiorek (@gang65) commented about dlls/ddraw/clipper.c:
> DeleteObject(clipper->region);
>      if (!region)
>          clipper->region = NULL;
> -    else if (!(clipper->region = ExtCreateRegion(NULL, 0, region)))
> +    else if (!(clipper->region = ExtCreateRegion(NULL, region->rdh.dwSize + region->rdh.nRgnSize, region)))

From now we need to always specify valid value of number of bytes pointed by buffer.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10929#note_140326