From patchwork Wed Jun 23 20:39:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 466097 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 7EE7FC49EB9 for ; Wed, 23 Jun 2021 20:39:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6CB62610C7 for ; Wed, 23 Jun 2021 20:39:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230015AbhFWUmL (ORCPT ); Wed, 23 Jun 2021 16:42:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229945AbhFWUmG (ORCPT ); Wed, 23 Jun 2021 16:42:06 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAB1EC0617A8 for ; Wed, 23 Jun 2021 13:39:48 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id k5so2187588pjj.1 for ; Wed, 23 Jun 2021 13:39:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=weOFYHnAt9XHzyijtFN46zZa/bge4PQn7pFxvS+uscM=; b=PINKBfWpr3gvTyJ0eFnAv65n6MifZbR/apDoNhNeYQq+pb7Y+nHfI6/29jpyhKRsrA kSmtPGNKM36+xWmlgXqHNtUo2kVWovxkLqFL92N+B8M0nbpRfCD32Nat5OMJ3EJp3QwV KrPvrHdngyt40imWa1hgx+IPHVy1nFGR4oZAI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=weOFYHnAt9XHzyijtFN46zZa/bge4PQn7pFxvS+uscM=; b=FMDvhpVD3pJZk1sZqRnlZ8yXtXt+kyCqCyKJx7MbQP1GRv+CGHXeofR/sE+DRBIIbc IZcNhDIJhLxctxWT9nZWThcNNZIChs6uY/qWjtEzuIhzLfTwO3hgfObvkKvgFWYPgAF5 aHyBBgPdYKXJi5pXj5RqXec0+WD1onDnjbzlnbKSna2yawxnSGKpoT3E8wb/6DY8oCqh HpLEYiiXyOAFe3I2OMRcXdnhi1ZKZFGt8QZLelwU/C1/NHqx3lVskEeXG41xtnEbzxuE Nc0sU9sCu5sdWrPV/OAQ8YzyXXCZvoWmZWVyfyO6RnEt+WYwns5HzpWgp3mh2M2+HAVh CysA== X-Gm-Message-State: AOAM531N6cEfnPZCHNcU3g4/eq28MqWB7aExbYu+xYgeUw22FZVJafhr aV3uO260oPr9b+wWaFvUs+TimA== X-Google-Smtp-Source: ABdhPJx1ypcWLUnUHJBbnBIjhX9m3ZNAxwtdnMUAu2WOpDwAvnSgoGuRx7tr0mmBARqaMdXFPQlhRQ== X-Received: by 2002:a17:902:c789:b029:110:4933:71ce with SMTP id w9-20020a170902c789b0290110493371cemr1194211pla.56.1624480788561; Wed, 23 Jun 2021 13:39:48 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id f5sm640523pfe.79.2021.06.23.13.39.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Jun 2021 13:39:45 -0700 (PDT) From: Kees Cook To: Greg Kroah-Hartman Cc: Kees Cook , stable@vger.kernel.org, Guillaume Tucker , David Laight , Arnd Bergmann , linux-kernel@vger.kernel.org, kernelci@groups.io, linux-kselftest@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH 4/9] lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE Date: Wed, 23 Jun 2021 13:39:31 -0700 Message-Id: <20210623203936.3151093-5-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210623203936.3151093-1-keescook@chromium.org> References: <20210623203936.3151093-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=821; h=from:subject; bh=Ug1zxBYqfqGVjk6HZPE+S2IQ++k8iErOOapO5olSeEg=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBg05wGnJvmDSLi1MPOx05nkNSD/27SmvDUPYKaSZ+b ABK1bYKJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYNOcBgAKCRCJcvTf3G3AJhiJEA Ciux3+IGOay7Jw49WbIkgIv0TxSZgcO90q+vD3qxYri5Kve5Gl362F2aW0FCOlOtxfzOnGmC53o+vL mnCazUpoqn0dW/Y15W4dfOo+HoN5/Afr2nMEj2cwPYh7e2v3kQ2/JK4gaqP9mMDegUGCvWynQbQq54 md3YCttGo14SuaAMF9Wgo60xgxde5gIvQadm2WfvXU0BLyeZBBQb/iHJb8A06PBRzIBP06Nu+NmVVS 4gjNsMrbg6ltVcNDZ67UJ4sjzuFEP2hO+bd3d6/D/d7os59xJd11AHlpBYfk1gCBMC4wl/ZHgbOsaY ew49zKobbo1qt1K8F7Yct3U3IZZ9e2Ny/XCdM/rQMR0KlGYK/LXREO8mEubV2DBQzQidihoy2cFwBk 5gEjXn+w2QmsY5GXkuCXxsRXVw90q9IyT0Qt6kyJ44vqmTKpUFpcarqthBP1/2nXx243B73YaVCB12 6nd+koQb1m5NQNvzwZ8i/jObt5py/ucSDlpCVQ/PCl3NUt9sRB0S8MRNKXxgEJuNMGGs/BUSoYK5AE 51LAiLpudvJPuDuLgHUfzx1Ig+tAVem+P/7WoryLM/rDXtXqsXoyyHzBPcZGczV6nPm7xCwdkviySP adfzxjhgaQrqToXPyTkus9c6NYZDhVyUcK6oihTYUAjfRzEQc+F7f3grbaNA== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org When built under CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, this test is expected to fail (i.e. not trip an exception). Fixes: 46d1a0f03d66 ("selftests/lkdtm: Add tests for LKDTM targets") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook --- drivers/misc/lkdtm/bugs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 0e8254d0cf0b..9ff02bdf3153 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -161,6 +161,9 @@ void lkdtm_UNALIGNED_LOAD_STORE_WRITE(void) if (*p == 0) val = 0x87654321; *p = val; + + if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) + pr_err("XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS\n"); } void lkdtm_SOFTLOCKUP(void)