comctl32/propsheet: Enforce minimal PROPSHEETPAGE structure size when creating a page.

dlls/comctl32/propsheet.c

@@ -2957,8 +2957,12 @@ static LPWSTR load_string( HINSTANCE instance, LPCWSTR str )
 HPROPSHEETPAGE WINAPI CreatePropertySheetPageA(
                           LPCPROPSHEETPAGEA lpPropSheetPage)
 {
-  PROPSHEETPAGEW* ppsp = Alloc(sizeof(PROPSHEETPAGEW));
+    PROPSHEETPAGEW *ppsp;
 
+    if (lpPropSheetPage->dwSize < PROPSHEETPAGEA_V1_SIZE)
+        return NULL;
+
+    ppsp = Alloc(sizeof(PROPSHEETPAGEW));
   memcpy(ppsp,lpPropSheetPage,min(lpPropSheetPage->dwSize,sizeof(PROPSHEETPAGEA)));
 
   ppsp->dwFlags &= ~ PSP_INTERNAL_UNICODE;
@@ -3023,8 +3027,12 @@ HPROPSHEETPAGE WINAPI CreatePropertySheetPageA(
  */
 HPROPSHEETPAGE WINAPI CreatePropertySheetPageW(LPCPROPSHEETPAGEW lpPropSheetPage)
 {
-  PROPSHEETPAGEW* ppsp = Alloc(sizeof(PROPSHEETPAGEW));
+    PROPSHEETPAGEW *ppsp;
+
+    if (lpPropSheetPage->dwSize < PROPSHEETPAGEW_V1_SIZE)
+        return NULL;
 
+    ppsp = Alloc(sizeof(PROPSHEETPAGEW));
   memcpy(ppsp,lpPropSheetPage,min(lpPropSheetPage->dwSize,sizeof(PROPSHEETPAGEW)));
 
   ppsp->dwFlags |= PSP_INTERNAL_UNICODE;

dlls/comctl32/tests/propsheet.c

@@ -1076,7 +1076,6 @@ static void test_CreatePropertySheetPage(void)
         hpsp = CreatePropertySheetPageA(&page.u.pageA);
 
         if (page.u.pageA.dwSize < PROPSHEETPAGEA_V1_SIZE)
-        todo_wine
             ok(hpsp == NULL, "Expected failure, size %u\n", page.u.pageA.dwSize);
         else
         {
@@ -1108,7 +1107,6 @@ static void test_CreatePropertySheetPage(void)
         hpsp = CreatePropertySheetPageW(&page.u.pageW);
 
         if (page.u.pageW.dwSize < PROPSHEETPAGEW_V1_SIZE)
-        todo_wine
             ok(hpsp == NULL, "Expected failure, size %u\n", page.u.pageW.dwSize);
         else
         {