[reactos] 01/01: [NTGDI] Fix stack memory disclosure in ftGdiGetTextMetricsW (#2991)

[Nguyen Trung Khanh]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=247c1892639e74b73927a…

commit 247c1892639e74b73927af8a27c95ebd094c5634
Author:     Nguyen Trung Khanh <nguyentrungkhanh97(a)gmail.com>
AuthorDate: Tue Aug 25 23:28:39 2020 +0700
Commit:     GitHub <noreply(a)github.com>
CommitDate: Tue Aug 25 19:28:39 2020 +0300

    [NTGDI] Fix stack memory disclosure in ftGdiGetTextMetricsW (#2991)
---
 win32ss/gdi/ntgdi/freetype.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32ss/gdi/ntgdi/freetype.c b/win32ss/gdi/ntgdi/freetype.c
index c53bf1a12aa..79c825f0170 100644
--- a/win32ss/gdi/ntgdi/freetype.c
+++ b/win32ss/gdi/ntgdi/freetype.c
@@ -4560,6 +4560,7 @@ ftGdiGetTextMetricsW(
         EngSetLastError(STATUS_INVALID_PARAMETER);
         return FALSE;
     }
+    RtlZeroMemory(ptmwi, sizeof(TMW_INTERNAL));
 
     if (!(dc = DC_LockDc(hDC)))
     {
@@ -4612,7 +4613,6 @@ ftGdiGetTextMetricsW(
                 FillTM(&ptmwi->TextMetric, FontGDI, pOS2, pHori, !Error ? &Win
: 0);
 
                 /* FIXME: Fill Diff member */
-                RtlZeroMemory(&ptmwi->Diff, sizeof(ptmwi->Diff));
             }
 
             IntUnLockFreeType();