[WIN32K] -NtGdiGetRegionData: prgn->rdh.nRgnSize is the size of kernel mode buffer for the region. After copying it to the caller we should set lpRgnData->rdh.nRgnSize to cjRects.

svn path=/trunk/; revision=74275
2026-09-03 12:23:25 +00:00 · 2017-04-04 10:07:07 +00:00
parent 17ecb5786e
commit e826abc369
1 changed files with 1 additions and 0 deletions
@@ -4105,6 +4105,7 @@ NtGdiGetRegionData(
                RtlCopyMemory(lpRgnData, &prgn->rdh, sizeof(RGNDATAHEADER));
                RtlCopyMemory(lpRgnData->Buffer, prgn->Buffer, cjRects);
                lpRgnData->rdh.iType = RDH_RECTANGLES;
+                lpRgnData->rdh.nRgnSize = cjRects;
            }
            _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
            {