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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL autolearn=ham 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 B572CC4338F for ; Thu, 12 Aug 2021 15:44:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5777160D07 for ; Thu, 12 Aug 2021 15:44:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5777160D07 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id AE1548D0002; Thu, 12 Aug 2021 11:44:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A90AD8D0001; Thu, 12 Aug 2021 11:44:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 97F648D0002; Thu, 12 Aug 2021 11:44:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0210.hostedemail.com [216.40.44.210]) by kanga.kvack.org (Postfix) with ESMTP id 7BF1F8D0001 for ; Thu, 12 Aug 2021 11:44:16 -0400 (EDT) Received: from smtpin34.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 13BED8249980 for ; Thu, 12 Aug 2021 15:44:16 +0000 (UTC) X-FDA: 78466850112.34.72C2071 Received: from mail-oi1-f174.google.com (mail-oi1-f174.google.com [209.85.167.174]) by imf09.hostedemail.com (Postfix) with ESMTP id C48F730096D7 for ; Thu, 12 Aug 2021 15:44:15 +0000 (UTC) Received: by mail-oi1-f174.google.com with SMTP id t35so10975718oiw.9 for ; Thu, 12 Aug 2021 08:44:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=zpfP7I/jc2+BB4WhfHjvO/EMXto5OQE4zX/MsZU99j8=; b=vRiM7MY6AWLe90EmHAb55UK+uL56sONCIdxRRFJRtQlGwoPsmFFdPVadl1/Ihi4dbH 2c0xWiepnA2c9RSULOzgy61aGi076jjNO/cC9RxqXz9zyXVsxcFI3xF6xsUxdYi5qF9Q hPJK9IgHTG5gLTYElWri/bym+MsYMrylFs4pVWcUGg/ptdidJalbxIfmqvnbCR/J4wN+ 3/VdVRqSBpWDC1OERKgzjxjgD9g0Pw2qOEKEtKf7+1P33l/c2Z6Dk8k4tUx6wrSCYYJx I3OpGKMIhtUR6LPyIAXfp/5XomW1Pe24lXSdJAMsPG6t9xtau2mdxzH3LTvtL0FSsHhi 7vCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=zpfP7I/jc2+BB4WhfHjvO/EMXto5OQE4zX/MsZU99j8=; b=R+e12+8kyniMsi8dB9FLDLwxoaEu3rGTUdu4HhbJ0GUHqpCvfn8DV6pS0ZRqhbulzB y7chIF9gkm3a4UkBpafMx0JeChvWrcoRShzskwewtS5lXimqvmOCzzklXPfhkdLZPMIC VkbksR3rNciVLRcz79sGyoRkp3/hPKu9F7vQUwZ/dhTq8sb5OhX0ZGSmLf6164Ic7XJi iP0WQCElP1vGRb5qq5apDd5WGcGU08H0/YXRRk/eghnf1mBcOU+BYm1ztHS74sZOLnPl UQLhezDLrorGcfkgl3uXyk8ROJR2sby1OBbPLFln7WA0HMYBGxQXyi/Trx+be7cd0ZG2 +CaA== X-Gm-Message-State: AOAM533n5RzgK1eZQsm5tJglvMCBXtIqCJ/tUNNZB6i/qeB+pj+N8Myd 7egREHGhMhjlOrpOwXi0fbUwCNz+Qb7IA27xRlI3fQ== X-Google-Smtp-Source: ABdhPJyrW0HY4kHb23UkoThnrJRaIFzVTyyeOpzcToB6SU4lQTOjMLOkjCt2hBV/5uuXCoFEQrIn3GlXakyZ3r5X9Wo= X-Received: by 2002:aca:eb8a:: with SMTP id j132mr3817727oih.121.1628783054859; Thu, 12 Aug 2021 08:44:14 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Marco Elver Date: Thu, 12 Aug 2021 17:44:03 +0200 Message-ID: Subject: Re: [PATCH v2 0/8] kasan: test: avoid crashing the kernel with HW_TAGS To: Andrey Konovalov Cc: Andrew Morton , Andrey Ryabinin , Dmitry Vyukov , Alexander Potapenko , kasan-dev , Linux Memory Management List , LKML , andrey.konovalov@linux.dev Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: C48F730096D7 Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=google.com header.s=20161025 header.b=vRiM7MY6; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf09.hostedemail.com: domain of elver@google.com designates 209.85.167.174 as permitted sender) smtp.mailfrom=elver@google.com X-Rspamd-Server: rspam04 X-Stat-Signature: hajq447z6bj5ix5f6txh1jtfwu5nkj6o X-HE-Tag: 1628783055-273434 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, 12 Aug 2021 at 17:06, Andrey Konovalov wrote: > On Thu, Aug 12, 2021 at 4:53 PM wrote: > > From: Andrey Konovalov > > > > KASAN tests do out-of-bounds and use-after-free accesses. Running the > > tests works fine for the GENERIC mode, as it uses qurantine and redzones. > > But the HW_TAGS mode uses neither, and running the tests might crash > > the kernel. > > > > Rework the tests to avoid corrupting kernel memory. > > > > Changes v1->v2: > > - Touch both good and bad memory in memset tests as suggested by Marco. > > Ah, I forgot to include your reviews/acks, Marco. > > Perhaps you can give one for the whole series now. Reviewed-by: Marco Elver Looks good, thank you!