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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 51E30ECE587 for ; Mon, 14 Oct 2019 10:37:51 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 15E8A20873 for ; Mon, 14 Oct 2019 10:37:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ncAdm5p6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15E8A20873 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 BC7D38E0009; Mon, 14 Oct 2019 06:37:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B76548E0001; Mon, 14 Oct 2019 06:37:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A671D8E0009; Mon, 14 Oct 2019 06:37:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0214.hostedemail.com [216.40.44.214]) by kanga.kvack.org (Postfix) with ESMTP id 87CD48E0001 for ; Mon, 14 Oct 2019 06:37:50 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 258BF4FEC for ; Mon, 14 Oct 2019 10:37:50 +0000 (UTC) X-FDA: 76042039500.06.jam06_445d5030b2b0f X-HE-Tag: jam06_445d5030b2b0f X-Filterd-Recvd-Size: 4787 Received: from mail-qk1-f194.google.com (mail-qk1-f194.google.com [209.85.222.194]) by imf42.hostedemail.com (Postfix) with ESMTP for ; Mon, 14 Oct 2019 10:37:49 +0000 (UTC) Received: by mail-qk1-f194.google.com with SMTP id p10so15408529qkg.8 for ; Mon, 14 Oct 2019 03:37:49 -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=Xb4r1wuhDtOoPbUBnl8EutTh4mh6Tp7aWVqMVQujZhw=; b=ncAdm5p62dlyPVnbhlG8Ia8TOY8Bj9kzLoEPG8kBn98/b8IfkhIVulK5Sep05pIK1O a8o0B3t0aBxh0xAqIOcEfeSXp13CEtfHNcab6d7/193DUVfmkz6KLTW7BNnGSznYniOC OrQZYXwNQfNq6OFKV5BbBiaTmdDdA/KzwRrZQgY2d88OFjuIVU2/uImhKHWnlurIyJTf NP0R4emwQfuBb5AFCb0fsCrPv+n4gOBYVydhYj5Mse1CI1LeqzszvjYKB1kegwn/09dD ncJyFdOgxfUX5QfpE14HpJht0iIDCoje7GqrMD9p9QhnHQ3UxkeRvYSV9f1KCk9Dy3Wa IlLg== 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=Xb4r1wuhDtOoPbUBnl8EutTh4mh6Tp7aWVqMVQujZhw=; b=lJ1wI5TLgXlYO+a2saJn9xCsrXZnH+uaNdmyDcami+79tmBx2jMp9mYHBZjhoWenT6 En2XmNb1ljt2pBdxJITeLbWiuX1z44KmvWcP+pbAawP8jAFrKasN3MndJ7TEZVOlsfJ0 3uJYftjYOkLGC6jcr04odbnlz3vmC4gPv5BQdolplfQxlNtzqAF43vEyxuohfQegIlS4 rSuE5qzcssFaOrnuGQ51XOlYAxUMLmk+G0FDFh2+FNXcE7QuLy/rwIciKi+GkovRJYov Om+O6udoR4p8N3RwdcjebifLHGfGbk8YAfLo5Bbm18yu4nHXj5EMuF21A5+Aa1icgDfD VleA== X-Gm-Message-State: APjAAAWadBBxuURt+zRF+g06tSgZgL+xPihXXxi+wjM615q9HdLRJJev VEXCLT5WfYPSfzz162tH9UPT52UEQR7JBCnDEXL1Zg== X-Google-Smtp-Source: APXvYqxYd8Es1sxTY+VJ2ATWYdlj9YU4K41B4R2sul1P3y5YoKeVysrLikKwT7pXtYzOTHQ/ki/Sr8bYKKH4sdYYyHs= X-Received: by 2002:a05:620a:2158:: with SMTP id m24mr29448433qkm.250.1571049468723; Mon, 14 Oct 2019 03:37:48 -0700 (PDT) MIME-Version: 1.0 References: <20191014103148.17816-1-walter-zh.wu@mediatek.com> In-Reply-To: From: Dmitry Vyukov Date: Mon, 14 Oct 2019 12:37:37 +0200 Message-ID: Subject: Re: [PATCH 0/2] fix the missing underflow in memory operation function To: Walter Wu Cc: Andrey Ryabinin , Alexander Potapenko , Matthias Brugger , kasan-dev , Linux-MM , LKML , Linux ARM , linux-mediatek@lists.infradead.org, wsd_upstream 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 Mon, Oct 14, 2019 at 12:36 PM Dmitry Vyukov wrote: > > On Mon, Oct 14, 2019 at 12:32 PM Walter Wu wrote: > > > > The patchsets help to produce KASAN report when size is negative numbers > > in memory operation function. It is helpful for programmer to solve the > > undefined behavior issue. Patch 1 based on Dmitry's review and > > suggestion, patch 2 is a test in order to verify the patch 1. > > Hi Walter, > > I only received this cover letter, but not the actual patches. I also > don't see them in the group: > https://groups.google.com/forum/#!forum/kasan-dev > nor on internet. Have you mailed them? Where are they? OK, received them just now. > > [1]https://bugzilla.kernel.org/show_bug.cgi?id=199341 > > [2]https://lore.kernel.org/linux-arm-kernel/20190927034338.15813-1-walter-zh.wu@mediatek.com/ > > > > Walter Wu (2): > > kasan: detect negative size in memory operation function > > kasan: add test for invalid size in memmove > > > > --- > > lib/test_kasan.c | 18 ++++++++++++++++++ > > mm/kasan/common.c | 13 ++++++++----- > > mm/kasan/generic.c | 5 +++++ > > mm/kasan/generic_report.c | 18 ++++++++++++++++++ > > mm/kasan/tags.c | 5 +++++ > > mm/kasan/tags_report.c | 17 +++++++++++++++++ > > 6 files changed, 71 insertions(+), 5 deletions(-) > > > > -- > > 2.18.0 > > > > -- > > You received this message because you are subscribed to the Google Groups "kasan-dev" group. > > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/20191014103148.17816-1-walter-zh.wu%40mediatek.com.