Re: [PATCH] ntdll: Fix race condition with fd_cache when duplicating handle.

[Alexandre Julliard]

Daniel Lehman  writes:
> @@ -1639,7 +1639,10 @@ NTSTATUS WINAPI NtDuplicateObject( HANDLE source_process, HANDLE source, HANDLE
>                                     ACCESS_MASK access, ULONG attributes, ULONG options )
>  {
>      NTSTATUS ret;
> -
>
> int fd = -1;
> -
>
> if (options & DUPLICATE_CLOSE_SOURCE)
> -
>    fd = remove_fd_from_cache( source );

I'm afraid it's not that simple, there's no guarantee that the source
handle is for the current process.