[ros-diffs] [reactos] 01/01: [WIN32K] Don't trust the BITMAPINFOHEADER size This is not entirely correct yet, but less wrong than before CORE-16621

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=53c9a6deaa61091f5bf68…

commit 53c9a6deaa61091f5bf681483cd3f36cc388c51b
Author:     Mark Jansen <mark.jansen(a)reactos.org>
AuthorDate: Sat Jan 11 13:15:12 2020 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Sun Jan 26 13:08:53 2020 +0100

    [WIN32K] Don't trust the BITMAPINFOHEADER size
    This is not entirely correct yet, but less wrong than before
    CORE-16621
---
 win32ss/gdi/ntgdi/dibobj.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32ss/gdi/ntgdi/dibobj.c b/win32ss/gdi/ntgdi/dibobj.c
index f935bc5d543..93208665b39 100644
--- a/win32ss/gdi/ntgdi/dibobj.c
+++ b/win32ss/gdi/ntgdi/dibobj.c
@@ -1288,7 +1288,7 @@ NtGdiStretchDIBitsInternal(
                                BitmapFormat(pbmi->bmiHeader.biBitCount,
                                             pbmi->bmiHeader.biCompression),
                                pbmi->bmiHeader.biHeight < 0 ? BMF_TOPDOWN : 0,
-                               pbmi->bmiHeader.biSizeImage,
+                               cjMaxBits,
                                pvBits,
                                0);