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[23.128.96.34]) by mx.google.com with ESMTPS id q14-20020a170902dace00b001cfcd2e1294si6036473plx.241.2023.12.11.01.53.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Dec 2023 01:53:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) client-ip=23.128.96.34; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=udy+8h0q; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id F205A8068598; Mon, 11 Dec 2023 01:53:19 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234473AbjLKJw6 (ORCPT + 99 others); Mon, 11 Dec 2023 04:52:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229608AbjLKJw4 (ORCPT ); Mon, 11 Dec 2023 04:52:56 -0500 Received: from mail-oa1-x31.google.com (mail-oa1-x31.google.com [IPv6:2001:4860:4864:20::31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5A208E for ; Mon, 11 Dec 2023 01:53:01 -0800 (PST) Received: by mail-oa1-x31.google.com with SMTP id 586e51a60fabf-1ef36a04931so2989316fac.2 for ; Mon, 11 Dec 2023 01:53:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1702288381; x=1702893181; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=RkurISIjMkn+2I3PnXKwVyMchslMNcfqaTJxR0Aia2Q=; b=udy+8h0q8QeRXLg6Y8Lf1YaXitekzhJ6Fuy8N8wiD1ZtVKdAj1LtzAiourNjqmAqx6 tBJeWHglUuQFV0Gn2tT2iRpWaGKbRZF5awcJtJdZ3A46oU7GSFyvi0Gtl7c6q8T2uIPC p+NVuX9kKXc3lifBaXq34GtoBLQztFF3CYGJhOaJqH3/EIRkfD2iGW/sxUy3goEy1/WY EGAMzUAE+7tZR8wm6NraWDBqa3HcFqdrgJ2i9cBwANf/kFVxoyg6XA4x4MEtMKikxW90 yPFn4vH9pcnBooUehdBW3XPsT96jXeftx59DcSwUUVTo3eHXydZ6fQhvr8PsI/QV7s1h /9VA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702288381; x=1702893181; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RkurISIjMkn+2I3PnXKwVyMchslMNcfqaTJxR0Aia2Q=; b=SoGGi1jAmgazIt+4Gv8LUNguDYf/bQHWJYEEI0xNfM0G/rAOTtpz3A8JlRCx9At0KV Wl+GBUqFPOFla4aVHbng+O06L77gN8bNAZ5lW7gCBRJtkAm2+34ArPU0wjMq0l1VUhql 8zkSl/2bTIvT+Oyltygs1o+5ZcvSkxNYcvBTw5mR8H/pWqila1tqWiKlHTAW4QVfyT1M J81p0o+x1WdwsDKCWeigmNllCqJo5JV6875pn7F3sgs42va8xksxaOia5HpSTRKJpJC4 F7hmSZ+SJ+oVjRMDu5040Y/YHcyQeLtYrdegwkI7AAvshFkycBKNBHPzWneP+AQ/Hriw 12kg== X-Gm-Message-State: AOJu0YxldYBJj3O2lZ8FYNpO1LhIyV+nTzVSkwJp4EIfl9azd5Utuqp1 3N8Y2wGd9RObl+HGBG3rvqYdzPk0M/4uhFMSQiEmTQ== X-Received: by 2002:a05:6870:418c:b0:1fa:406c:219 with SMTP id y12-20020a056870418c00b001fa406c0219mr4019357oac.28.1702288380928; Mon, 11 Dec 2023 01:53:00 -0800 (PST) MIME-Version: 1.0 References: <20231121220155.1217090-1-iii@linux.ibm.com> <20231121220155.1217090-6-iii@linux.ibm.com> In-Reply-To: <20231121220155.1217090-6-iii@linux.ibm.com> From: Alexander Potapenko Date: Mon, 11 Dec 2023 10:52:20 +0100 Message-ID: Subject: Re: [PATCH v2 05/33] kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces To: Ilya Leoshkevich Cc: Alexander Gordeev , Andrew Morton , Christoph Lameter , David Rientjes , Heiko Carstens , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka , Christian Borntraeger , Dmitry Vyukov , Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Roman Gushchin , Sven Schnelle Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-8.4 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Mon, 11 Dec 2023 01:53:20 -0800 (PST) On Tue, Nov 21, 2023 at 11:02=E2=80=AFPM Ilya Leoshkevich wrote: > > Comparing pointers with TASK_SIZE does not make sense when kernel and > userspace overlap. Skip the comparison when this is the case. > > Signed-off-by: Ilya Leoshkevich Reviewed-by: Alexander Potapenko