--- linux-2.4.4-orig/kernel/sys.c	Tue May  1 14:34:43 2001
+++ linux-2.4.4/kernel/sys.c	Wed Jun 20 01:32:46 2001
@@ -603,7 +603,9 @@ asmlinkage long sys_setuid(uid_t uid)
 		if (uid != old_ruid && set_user(uid, old_euid != uid) < 0)
 			return -EAGAIN;
 		new_suid = uid;
-	} else if ((uid != current->uid) && (uid != new_suid))
+	} else if ((uid != current->uid)
+		   && (uid != new_suid)
+		&& (uid != old_euid))
 		return -EPERM;
 
 	if (old_euid != uid)