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=-5.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 65F5EC4741F for ; Thu, 5 Nov 2020 16:50:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0130020756 for ; Thu, 5 Nov 2020 16:50:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="VVR99qii" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731492AbgKEQuM (ORCPT ); Thu, 5 Nov 2020 11:50:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730854AbgKEQuL (ORCPT ); Thu, 5 Nov 2020 11:50:11 -0500 Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E247C0613CF for ; Thu, 5 Nov 2020 08:50:11 -0800 (PST) Received: by mail-io1-xd36.google.com with SMTP id u62so2460392iod.8 for ; Thu, 05 Nov 2020 08:50:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=LCPf3w7GcOJmMavuxhhy8i+MWkFz77vU9ZNMmXvF0yc=; b=VVR99qiiNqLDP9i/eEOA1EFzfdcblQnmRz2qyvWNKrGxDPcquvdkCgI8+n/9r7CS6t yRYsInxCLko0aWTyBGm3zxhukaV26969+cHrzdx+Ro4IyE1HgvD9Ier/eMvLlOnZLxUq QMWzMjGcevlzjPbbkoubZ5AYtNhlCW3NQ5fpXqqlGoz1wuAzRM1IpdfTMAP53dNJbgVP cmv6RNSDLi/tFBz8FPNu+sf1TCkiLa9PpTr//p5JS0AMct7dJvi10TBpgMVwesx3jrpX QfU6tzIph3ojSh3gtXVUAdvsnptE0iKFN88PAxKYgrMfUFfOTQOyagMuW9JfuxlygUiQ pigA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=LCPf3w7GcOJmMavuxhhy8i+MWkFz77vU9ZNMmXvF0yc=; b=AGylG2ri3+4oLVNciN4hts8/6jbJYRsXdEJt60ArOS3Ff/T6tS6tns5xzyIVfWJdcr torcS71YFxHpwlMBeDkV55Xo3Q8UZmbDgbSaWipLya197mWn7RKEZ1nhuzyeh5ay4+yx TF4Iqky4gTz4jg0iulxCZ1qatwpbpk8+q2mGPMDOckJCL4cwEAJ1bTh7EldsncQdvv32 IjwVp0oT5F5c5hp6r2JZyG2nim3XLYf8TGW96uabJqzXoguy+Rr3cboKgn3WpGdZFvw5 I++vGg4kBBMCSeTmKohrJfW2rSOSyn/HvAyl5dcvzFhXcBxy9xKOz5QWg3diB+bmnfhf k44w== X-Gm-Message-State: AOAM533XG4GZZ9lhg35ysgcRc1GLzKt4uJBrFShuxQ7nyOHfuUo92q6e C9kSBoEjvGTqIB9ZX8D8gamkAQ== X-Google-Smtp-Source: ABdhPJwR5k6COpqIu/RRBRupJZMcuya3aOjwRNFTRQkwFJHvEFeDIcg+W1mNgVdxhTeIc/v53THTBA== X-Received: by 2002:a05:6602:2d4e:: with SMTP id d14mr2414322iow.105.1604595010463; Thu, 05 Nov 2020 08:50:10 -0800 (PST) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id v15sm1487038ile.37.2020.11.05.08.50.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Nov 2020 08:50:10 -0800 (PST) Subject: Re: KASAN: use-after-free Read in io_uring_show_cred To: syzbot , io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk References: <0000000000003698a305b35e63fb@google.com> From: Jens Axboe Message-ID: <3588ce0a-46cd-91dd-79eb-6ecc13496e53@kernel.dk> Date: Thu, 5 Nov 2020 09:50:09 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <0000000000003698a305b35e63fb@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org #syz dup: general protection fault in io_uring_show_cred