From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6147BC433DF for ; Tue, 11 Aug 2020 15:01:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A07E20771 for ; Tue, 11 Aug 2020 15:01:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="KMfx+i0G" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728844AbgHKPBE (ORCPT ); Tue, 11 Aug 2020 11:01:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728801AbgHKPBA (ORCPT ); Tue, 11 Aug 2020 11:01:00 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88C1CC06174A for ; Tue, 11 Aug 2020 08:01:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=FGKdD+w4uCqJcdN9ztuakdLj9ZaFqNDwljGtIU98P8I=; b=KMfx+i0GlfqnZ5E2yG9J6lrnZF bX/g0MERGdZ/GfHGToliLqy+KErYA2Tw6gWFhadqBqwRHqnypeFqxAEGZm5OBQt2BcccNlLbLxZkr lMFyVU05VWKASV32crjQh6GBL3ZF9LyrKcWkdQ2gSm8lYvODDZdZ/WJVY/es6zXAaSmPB+VruSg/h TO+zoT85Qpl46lwxChrRlwXeKAmyMMqKwJwZ4hMSEo1X4T0sBsi5tA8gHde4hk1qUe2yDtj7K9+/a nZVF/NHK4SHr5WG9Zld9tNDaynWZDLBxy9pTGUDnqsGmoppNdIjUoORkSnM8rXwDjj0HcRcoPTWsM 6ccWNK6Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5Vlk-0004HG-Ej; Tue, 11 Aug 2020 15:00:53 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id DBBC7300DAE; Tue, 11 Aug 2020 16:55:24 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 37C4A2BB47D06; Tue, 11 Aug 2020 16:55:24 +0200 (CEST) Date: Tue, 11 Aug 2020 16:55:24 +0200 From: peterz@infradead.org To: Mauro Carvalho Chehab Cc: Jessica Yu , linux-kernel@vger.kernel.org, Thomas Gleixner , keescook@chromium.org, Josh Poimboeuf , Miroslav Benes , Mark Rutland Subject: Re: [PATCH v2] module: Harden STRICT_MODULE_RWX Message-ID: <20200811145524.GE2674@hirez.programming.kicks-ass.net> References: <20200403171303.GK20760@hirez.programming.kicks-ass.net> <20200808101222.5103093e@coco.lan> <20200810092523.GA8612@linux-8ccs> <20200810150647.GB8612@linux-8ccs> <20200811163427.6edbf343@coco.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200811163427.6edbf343@coco.lan> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 11, 2020 at 04:34:27PM +0200, Mauro Carvalho Chehab wrote: > [33] .plt PROGBITS 0000000000000340 00035c80 > 0000000000000001 0000000000000000 WAX 0 0 1 > [34] .init.plt NOBITS 0000000000000341 00035c81 > 0000000000000001 0000000000000000 WA 0 0 1 > [35] .text.ftrace[...] PROGBITS 0000000000000342 00035c81 > 0000000000000001 0000000000000000 WAX 0 0 1 .plt and .text.ftrace_tramplines are buggered. arch/arm64/kernel/module.lds even marks then as NOLOAD.