diff -urpN ./net/socket.c.orig ./net/socket.c
--- ./net/socket.c.orig	2006-06-01 10:28:30.000000000 +1000
+++ ./net/socket.c	2006-06-01 10:34:09.000000000 +1000
@@ -496,6 +496,8 @@ static struct socket *sockfd_lookup_ligh
 		if (sock)
 			return sock;
 		fput_light(file, *fput_needed);
+	} else {
+		*err = -EBADF;
 	}
 	return NULL;
 }