diff --git a/reactos/ntoskrnl/include/internal/se.h b/reactos/ntoskrnl/include/internal/se.h
index d5473690aa5..13f18e23f11 100644
--- a/reactos/ntoskrnl/include/internal/se.h
+++ b/reactos/ntoskrnl/include/internal/se.h
@@ -69,6 +69,8 @@ SepGetDaclFromDescriptor(PVOID _Descriptor)
     PISECURITY_DESCRIPTOR Descriptor = (PISECURITY_DESCRIPTOR)_Descriptor;
     PISECURITY_DESCRIPTOR_RELATIVE SdRel;
 
+    if (!(Descriptor->Control & SE_DACL_PRESENT)) return NULL;
+
     if (Descriptor->Control & SE_SELF_RELATIVE)
     {
         SdRel = (PISECURITY_DESCRIPTOR_RELATIVE)Descriptor;
@@ -88,6 +90,8 @@ SepGetSaclFromDescriptor(PVOID _Descriptor)
     PISECURITY_DESCRIPTOR Descriptor = (PISECURITY_DESCRIPTOR)_Descriptor;
     PISECURITY_DESCRIPTOR_RELATIVE SdRel;
 
+    if (!(Descriptor->Control & SE_SACL_PRESENT)) return NULL;
+
     if (Descriptor->Control & SE_SELF_RELATIVE)
     {
         SdRel = (PISECURITY_DESCRIPTOR_RELATIVE)Descriptor;