[reactos] 03/03: [WIN32K:NTUSER] Avoid user memory access outside of SEH in NtUserEnumDisplaySettings.

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=ef103d7d69f918f699a81…

commit ef103d7d69f918f699a81756bcae7d8f40ed93e9
Author:     Thomas Faber <thomas.faber(a)reactos.org>
AuthorDate: Sun Dec 29 18:51:05 2019 +0100
Commit:     Thomas Faber <thomas.faber(a)reactos.org>
CommitDate: Sun Dec 29 20:08:51 2019 +0100

    [WIN32K:NTUSER] Avoid user memory access outside of SEH in NtUserEnumDisplaySettings.
---
 win32ss/user/ntuser/display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32ss/user/ntuser/display.c b/win32ss/user/ntuser/display.c
index 5295573437e..3c39c05ec35 100644
--- a/win32ss/user/ntuser/display.c
+++ b/win32ss/user/ntuser/display.c
@@ -621,7 +621,7 @@ NtUserEnumDisplaySettings(
     }
     _SEH2_END;
 
-    if (lpDevMode->dmSize != sizeof(DEVMODEW))
+    if (cbSize != sizeof(DEVMODEW))
     {
         return STATUS_BUFFER_TOO_SMALL;
     }