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 04A41C433F5 for ; Fri, 6 May 2022 15:57:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1443238AbiEFQBY (ORCPT ); Fri, 6 May 2022 12:01:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1381488AbiEFQBV (ORCPT ); Fri, 6 May 2022 12:01:21 -0400 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C82566AA4B; Fri, 6 May 2022 08:57:37 -0700 (PDT) Received: by mail-wm1-x330.google.com with SMTP id q20so4704825wmq.1; Fri, 06 May 2022 08:57:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=EeZj1dGWsQkVJ1iS0n/s/P2JaTRMKlII01rLO3gK3+Q=; b=L8qWpjdJmgzu7fDGSTAGk13x7NsF9WIouXk64i8UQIdN98QXayan/y2ugDETkqowNH 8scLRKPZdbOotJ5yqGqRfAttKwXwZ5vmRjBXVA6QY/2suWwFmeGtoWSRWpDbCHv4hZzu FnREcqHiLA3g7Q3DIC+V4SQXSOQRhUkxX0CuS5Ijg+AIiZOVVtd5xPtvPg8Z/38WEmeF bCvKeOATw885JpXVGOrb4xMSWrLrSMJ1Jix18l8OifseWpsOJ6JnomrcHj5PDuDWqoAR Ii1QVU2KGjaexiIhtcygEGkHaafxYKxosx2kua4aj9M12xO/ciVnTe22ZurQt1aprnJ1 lP0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=EeZj1dGWsQkVJ1iS0n/s/P2JaTRMKlII01rLO3gK3+Q=; b=rBPpFtAUG+Emc8NKokEd7QqgOp1nLffRvMS7UnRXB6ZZTvXohdqnPem1RkD7sZ2A+G 40AlfXtQ6jPYh4FO8NbMmJvf8s9wGzQeo/pHUfae1aoThz9SSq19bhR5rwN4ShR+3SKb BKBfI6xTz7zveuMy5EZxfni2YRhQGG6G42OhbWsfQ/9n5nNPD0XYIB9TU7CNYwIevcdv UMISGrguNUBy1GC5MM0it3f5bARRLrrL7htbetqjPsdqSoEv6ffywvn+r+wz5A8dFWdM A6FJo9u4tm0MHTd5YE7eE1LTWPSGlofFgag0Dv1HqXewUIcEY0hIhEMeKK3YnYKyCN+7 wSpQ== X-Gm-Message-State: AOAM5302M1hpy8NuurHh8n181EmlT16viPZWxyUb/Mqzp/bcTD7G/PMJ +AnP1EbPM8hSP+YD1DveCXY= X-Google-Smtp-Source: ABdhPJy+PqqaPA+OnQJ7/hVk4A0vwg56Hg6gEahabjoKMAAZiiBABLtRdHtOZHfJmBMBGHMJQjDFZg== X-Received: by 2002:a1c:f413:0:b0:37b:d1de:5762 with SMTP id z19-20020a1cf413000000b0037bd1de5762mr3991836wma.108.1651852656311; Fri, 06 May 2022 08:57:36 -0700 (PDT) Received: from [192.168.8.198] ([85.255.237.75]) by smtp.gmail.com with ESMTPSA id d10-20020adffd8a000000b0020c5253d925sm3850318wrr.113.2022.05.06.08.57.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 May 2022 08:57:35 -0700 (PDT) Message-ID: <31ae3426-b835-3a3f-f6d1-aecad24066e8@gmail.com> Date: Fri, 6 May 2022 16:57:09 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: linux-stable-5.10-y CVE-2022-1508 of io_uring module Content-Language: en-US To: Jens Axboe , Guo Xuenan Cc: lee.jones@linaro.org, linux-kernel@vger.kernel.org, io-uring@vger.kernel.org, yi.zhang@huawei.com, houtao1@huawei.com References: <20220505141159.3182874-1-guoxuenan@huawei.com> <7d54523e-372b-759b-1ebb-e0dbc181f18d@kernel.dk> From: Pavel Begunkov In-Reply-To: <7d54523e-372b-759b-1ebb-e0dbc181f18d@kernel.dk> 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 5/6/22 03:16, Jens Axboe wrote: > On 5/5/22 8:11 AM, Guo Xuenan wrote: >> Hi, Pavel & Jens >> >> CVE-2022-1508[1] contains an patch[2] of io_uring. As Jones reported, >> it is not enough only apply [2] to stable-5.10. >> Io_uring is very valuable and active module of linux kernel. >> I've tried to apply these two patches[3] [4] to my local 5.10 code, I >> found my understanding of io_uring is not enough to resolve all conflicts. >> >> Since 5.10 is an important stable branch of linux, we would appreciate >> your help in solving this problem. > > Yes, this really needs to get buttoned up for 5.10. I seem to recall > there was a reproducer for this that was somewhat saner than the > syzbot one (which doesn't do anything for me). Pavel, do you have one? No, it was the only repro and was triggering the problem just fine back then -- Pavel Begunkov