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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A054FC54EBE for ; Mon, 16 Jan 2023 13:25:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230314AbjAPNZw (ORCPT ); Mon, 16 Jan 2023 08:25:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230074AbjAPNZ1 (ORCPT ); Mon, 16 Jan 2023 08:25:27 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B9472004B for ; Mon, 16 Jan 2023 05:24:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673875479; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XC0yuhfsAzxdKAV8+kZLseSZr9HPn/cM3ZhIZ8eKy3k=; b=VyemqRoq8AXrI0MNQIRKf0b8mm+gU+ND2E5YRump1Og7f3F+T95GJHYJ+I8ysxPnRf8F/R a/YtihpoCdnVdnnzWSOdZWOeDg0MZ0Lht6ZFWFGwcOeRc2fJpi6VtvMC27ipOFLza8/h2g vQ3BZ7Nfd0DbpB/XVtgaQ1AYKNHvDxc= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-427-1OhAzFa1NMChR4g3AeJACQ-1; Mon, 16 Jan 2023 08:24:36 -0500 X-MC-Unique: 1OhAzFa1NMChR4g3AeJACQ-1 Received: by mail-wr1-f71.google.com with SMTP id e29-20020adf9bdd000000b002bb0d0ea681so5337816wrc.20 for ; Mon, 16 Jan 2023 05:24:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XC0yuhfsAzxdKAV8+kZLseSZr9HPn/cM3ZhIZ8eKy3k=; b=AwhV4nHUl0Z/JqS343dYlP4mrxn3QQnKJdlOqTRVKe+9XfwATFV9DbJVtS4mLKcMkW /Oy/4RfwqsxUz5ZlLIirhVcOnmWuL+oOsZOH61nFvFLsVhZb0ZjwXHRbf32+eoH5CpOb phX2x2DkT6zlGbw+gXjyWqShPyItwsTfTpoKA7jZe+krzQMiDINceIT3ivJN+3lP3POj mvT0WDGae+MMk2A6R9X0RZdU56qRJWLTJG70NLFhSjzOywb502K1GiPWA6j9UYYUULWp zNMHQeGD7fMeViH8hw8t2krCrbd9Lvc3ticxskdDqyzMi5+CLJ1xtu3JhQ6IzJPvhTxN +k6A== X-Gm-Message-State: AFqh2ko2kfhU7Vn5DoZ8b/EUS18odR9VM3cY/OxipCeOVaY3cYWjgu8f lNIsqqqNZFRllgOn5tSQG+MdthU1c9EGEWeAmPSm4wwsy1yObbDeVpDjs6YO9BPaS0Kv3BEVtb4 OYLiUCsoSbDQy5BppfQp1ppF1 X-Received: by 2002:a1c:7416:0:b0:3da:fcf1:d4cc with SMTP id p22-20020a1c7416000000b003dafcf1d4ccmr2416798wmc.30.1673875475155; Mon, 16 Jan 2023 05:24:35 -0800 (PST) X-Google-Smtp-Source: AMrXdXun2GD+tbwFUn60JuBqjkqki8t23rFIH3PTJqWBorbr3wFPZTb7NuVUlCpxIhYqh7dOg4Ct0g== X-Received: by 2002:a1c:7416:0:b0:3da:fcf1:d4cc with SMTP id p22-20020a1c7416000000b003dafcf1d4ccmr2416778wmc.30.1673875474864; Mon, 16 Jan 2023 05:24:34 -0800 (PST) Received: from ?IPV6:2003:cb:c704:1000:21d5:831d:e107:fbd6? (p200300cbc704100021d5831de107fbd6.dip0.t-ipconnect.de. [2003:cb:c704:1000:21d5:831d:e107:fbd6]) by smtp.gmail.com with ESMTPSA id t15-20020a1c770f000000b003da286f8332sm8390138wmi.18.2023.01.16.05.24.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Jan 2023 05:24:34 -0800 (PST) Message-ID: <6f5ac7ee-0af3-a466-cf7f-b17270bc1391@redhat.com> Date: Mon, 16 Jan 2023 14:24:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH mm] mm: hugetlb: Add checks for NULL for vma returned from find_vma. find_vma may return NULL, that's why its return value is usually checked for NULL. Content-Language: en-US To: Esina Ekaterina , Mike Kravetz Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org References: <20230116100520.71277-1-eesina@astralinux.ru> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230116100520.71277-1-eesina@astralinux.ru> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16.01.23 11:05, Esina Ekaterina wrote: > Found by Astra Linux on behalf of Linux Verification Center > (linuxtesting.org) with SVACE. Please trim the subject and move details to the description. What are the symptoms? How exactly does this BUG manifest? What is this patch fixing? -- Thanks, David / dhildenb