[PATCH v2 2/4] kernelbase: LoadLibraryEx enforce valid flag combinations

[Dāvis Mosāns]

From: Dāvis Mosāns

---
 dlls/kernelbase/loader.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/kernelbase/loader.c b/dlls/kernelbase/loader.c
index 59b91596f13..8f40286b880 100644
--- a/dlls/kernelbase/loader.c
+++ b/dlls/kernelbase/loader.c
@@ -530,12 +530,19 @@ HMODULE WINAPI DECLSPEC_HOTPATCH LoadLibraryExW( LPCWSTR name, HANDLE file, DWOR
 {
     UNICODE_STRING str;
     HMODULE module;
+    BOOL invalid_parameter;

-    if (!name)
+    invalid_parameter = !name ||
+                        file ||
+                        ((flags & LOAD_LIBRARY_AS_DATAFILE) && (flags & LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE)) ||
+                        ((flags & LOAD_LIBRARY_SEARCH_DEFAULT_DIRS) && (flags & LOAD_WITH_ALTERED_SEARCH_PATH));
+
+    if (invalid_parameter)
     {
         SetLastError( ERROR_INVALID_PARAMETER );
         return 0;
     }
+
     RtlInitUnicodeString( &str, name );
     if (str.Buffer[str.Length/sizeof(WCHAR) - 1] != ' ') return load_library( &str, flags );