--- linux-2.6.26.1-old/kernel/module.c	2008-08-02 00:58:24.000000000 +0200
+++ linux-2.6.26.1/kernel/module.c	2008-08-05 14:48:13.000000000 +0200
@@ -936,9 +936,11 @@
 		goto bad_version;
 	}
 
+	/* Not in module's version table.  OK, but that taints the kernel. */
 	printk(KERN_WARNING "%s: no symbol version for %s\n",
 	       mod->name, symname);
-	return 0;
+	add_taint_module(mod, TAINT_FORCED_MODULE);
+	return 1;
 
 bad_version:
 	printk("%s: disagrees about version of symbol %s\n",