diff --git a/reactos/ntoskrnl/include/internal/ntoskrnl.h b/reactos/ntoskrnl/include/internal/ntoskrnl.h
index 44b750e3533..0d2c38ac06a 100644
--- a/reactos/ntoskrnl/include/internal/ntoskrnl.h
+++ b/reactos/ntoskrnl/include/internal/ntoskrnl.h
@@ -130,11 +130,16 @@ ProbeAndCaptureUnicodeString(OUT PUNICODE_STRING Dest,
     /* Allocate space for the buffer */
     Buffer = ExAllocatePool(PagedPool, Dest->MaximumLength);
 
-    /* Copy it */
-    RtlCopyMemory(Buffer, Dest->Buffer, Dest->MaximumLength);
+    if (Buffer != NULL)
+    {
+        /* Copy it */
+        RtlCopyMemory(Buffer, Dest->Buffer, Dest->MaximumLength);
 
-    /* Set it as the buffer */
-    Dest->Buffer = Buffer;
+        /* Set it as the buffer */
+        Dest->Buffer = Buffer;
+    }
+    else
+        Status = STATUS_INSUFFICIENT_RESOURCES;
 
     /* Return */
     return Status;
diff --git a/reactos/ntoskrnl/io/driver.c b/reactos/ntoskrnl/io/driver.c
index 23f6761b85c..33fd8082b27 100644
--- a/reactos/ntoskrnl/io/driver.c
+++ b/reactos/ntoskrnl/io/driver.c
@@ -1852,7 +1852,7 @@ NtLoadDriver(IN PUNICODE_STRING DriverServiceName)
    RTL_QUERY_REGISTRY_TABLE QueryTable[3];
    UNICODE_STRING ImagePath;
    UNICODE_STRING ServiceName;
-   UNICODE_STRING CapturedDriverServiceName;
+   UNICODE_STRING CapturedDriverServiceName = {0};
    KPROCESSOR_MODE PreviousMode;
    NTSTATUS Status;
    ULONG Type;