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=-18.3 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 8D683C433E0 for ; Fri, 15 Jan 2021 13:33:18 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 26AF122583 for ; Fri, 15 Jan 2021 13:33:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26AF122583 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A057D8D0177; Fri, 15 Jan 2021 08:33:17 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9B5788D0162; Fri, 15 Jan 2021 08:33:17 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8CBCE8D0177; Fri, 15 Jan 2021 08:33:17 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0075.hostedemail.com [216.40.44.75]) by kanga.kvack.org (Postfix) with ESMTP id 79ED68D0162 for ; Fri, 15 Jan 2021 08:33:17 -0500 (EST) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 42718181AF5C4 for ; Fri, 15 Jan 2021 13:33:17 +0000 (UTC) X-FDA: 77708100834.15.brake28_34124c72752f Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin15.hostedemail.com (Postfix) with ESMTP id 17B0A1814B0D6 for ; Fri, 15 Jan 2021 13:33:17 +0000 (UTC) X-HE-Tag: brake28_34124c72752f X-Filterd-Recvd-Size: 3951 Received: from mail-qk1-f180.google.com (mail-qk1-f180.google.com [209.85.222.180]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Fri, 15 Jan 2021 13:33:16 +0000 (UTC) Received: by mail-qk1-f180.google.com with SMTP id h4so11609025qkk.4 for ; Fri, 15 Jan 2021 05:33:16 -0800 (PST) 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=K0aoGg0wPuE1hYe4sqWhHeR+8ZOS1Jh5Y7WE82oHlpQ=; b=LpFhrwzGtivImHuZyJyOguqdzO/W6jTbisntyRsA8SYA0st26tZxXzsVp0UCcBzpyY s4cMz9Cr2GUSypTdyNhkmMIp9YwhuIUoWrnuI4ppAKLO9X0Q7Mm89lvZfO5N7atXYTc+ 9Vj+efQwYTaOy+5WFfHpm8FdcGbMr7EpTTW7PFW8W0igIVsw9AIqppb1b87rFDCkcxjy fIKnmtMTEh9tlIEqTphJq/96v5h5usIHaf+SEmgcT/5ogQ8d21giWCsqwOUgilZlwifr NqvNVJpvwVmPSVcjzidnGHdMldOP5lWKus3YFw38eYTfmDcQgnumIT16b33j25Hf6i2b BI8g== 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=K0aoGg0wPuE1hYe4sqWhHeR+8ZOS1Jh5Y7WE82oHlpQ=; b=Vd5ROU1L2XyxQs2nW8o/4jwk+VeyHrJQs8gH0Q0NgUWH1ZH/+aqPWN/HYaw6Ru/9LR VTg44osf5V7usnF/8pnXguGRcTEuY7dv3sblk7AADFXkn1JpLSEsgklid0V5DmvgT5ic C1fY+4S6k9QMWVLEh+gXAfPaz/a3OQ30CdoD8sUJszkCqxZ8VoomMVLp2GmI2dAKPhgx ZngM/GvY1b5UFkxCSWpUkl9pmhm0hnyCJHQOiiGPydIebR5fktKNStaunZyTMIbPTCU1 2pHin1IhZKfFjKNRDLiumK8Sr2fCDTVZqIrtirwUMh/EIUR5I9Bu5jhzBU9I5rz+o9uW 2qtQ== X-Gm-Message-State: AOAM5320yj7rTmatns6XsZ/XIeVL0PzqSr65vvUFU7y/L0Q7FnTozSjD QYykKGzgE9Qt8B27aJnNUvZmZsh/ygYY04bo/QrMnQ== X-Google-Smtp-Source: ABdhPJw5p3xgG12EUUQ9NmnmlmvaLHhlOFEA/tDuImAA12I1+PC+ozHXAXHgKRI4ctQifa8qFZZEaLPZ6Q/SpkaJwOE= X-Received: by 2002:a05:620a:2051:: with SMTP id d17mr12177058qka.403.1610717595909; Fri, 15 Jan 2021 05:33:15 -0800 (PST) MIME-Version: 1.0 References: <5153dafd6498a9183cfedaf267a2953defb6578e.1610652890.git.andreyknvl@google.com> In-Reply-To: <5153dafd6498a9183cfedaf267a2953defb6578e.1610652890.git.andreyknvl@google.com> From: Alexander Potapenko Date: Fri, 15 Jan 2021 14:33:04 +0100 Message-ID: Subject: Re: [PATCH v3 05/15] kasan: add match-all tag tests To: Andrey Konovalov Cc: Andrew Morton , Catalin Marinas , Vincenzo Frascino , Dmitry Vyukov , Marco Elver , Will Deacon , Andrey Ryabinin , Peter Collingbourne , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , kasan-dev , Linux ARM , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" 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, Jan 14, 2021 at 8:36 PM Andrey Konovalov wrote: > > Add 3 new tests for tag-based KASAN modes: > > 1. Check that match-all pointer tag is not assigned randomly. > 2. Check that 0xff works as a match-all pointer tag. > 3. Check that there are no match-all memory tags. > > Note, that test #3 causes a significant number (255) of KASAN reports > to be printed during execution for the SW_TAGS mode. > > Link: https://linux-review.googlesource.com/id/I78f1375efafa162b37f3abcb2c5bc2f3955dfd8e > Reviewed-by: Marco Elver > Signed-off-by: Andrey Konovalov Reviewed-by: Alexander Potapenko