[reactos] 01/01: [WIN32SS][NTGDI] Use ProbeForWrite in NtGdiSetBitmapBits (#1325)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=bb33692400b3d59d6c907…

commit bb33692400b3d59d6c9070d339bf666b997b3624
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Wed Jan 30 16:54:45 2019 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Wed Jan 30 16:54:45 2019 +0900

    [WIN32SS][NTGDI] Use ProbeForWrite in NtGdiSetBitmapBits (#1325)
    
    Use ProbeForWrite instead of ProbeForRead. CORE-15657 and CORE-15695
---
 win32ss/gdi/ntgdi/bitmaps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32ss/gdi/ntgdi/bitmaps.c b/win32ss/gdi/ntgdi/bitmaps.c
index 0f556f9b91..59fb5dd9d1 100644
--- a/win32ss/gdi/ntgdi/bitmaps.c
+++ b/win32ss/gdi/ntgdi/bitmaps.c
@@ -645,7 +645,7 @@ NtGdiSetBitmapBits(
     _SEH2_TRY
     {
         /* NOTE: Win2k3 doesn't check WORD alignment here. */
-        ProbeForRead(pUnsafeBits, Bytes, 1);
+        ProbeForWrite(pUnsafeBits, Bytes, 1);
         ret = UnsafeSetBitmapBits(psurf, Bytes, pUnsafeBits);
     }
     _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)