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=-5.2 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,URIBL_BLOCKED,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 EE36AC433ED for ; Thu, 29 Apr 2021 14:27:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A78546144B for ; Thu, 29 Apr 2021 14:27:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237406AbhD2O2L (ORCPT ); Thu, 29 Apr 2021 10:28:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237338AbhD2O2K (ORCPT ); Thu, 29 Apr 2021 10:28:10 -0400 Received: from mail-il1-x12f.google.com (mail-il1-x12f.google.com [IPv6:2607:f8b0:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51BCEC06138B for ; Thu, 29 Apr 2021 07:27:21 -0700 (PDT) Received: by mail-il1-x12f.google.com with SMTP id y6so420257ilq.10 for ; Thu, 29 Apr 2021 07:27:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=oX7qYgxXYUDTnDWIrAAdrMAk23CW1FWOs8hQTp5c3yY=; b=U4mbRlv5UHD7sn2yKKFCrR+4XJ13UgOrePmZ9r2zi4LgU/UxNb72eYOLK/TvO7VUlz 30WM7WkrcRFNI/x/ite+fOcgwI2QEtgUxsjoskRUTfetp2ZeV8V6EvbTQJQ8k/LVqLSz LkoD3TnCV+fTaXYxRE35BxH8SiXnv7w1dxW3bIcojZXcQEWKEdKLy4tpks1Cw+gUrAkq VuQqMkHFdQ0zszYyHwo5cmhjNf9iphNdIiDdkLefNDM7yiRp1rrPoe+45r/HOSWh/7WI vNsgd2MnuJMVvW5PuGtKQDv4GD6uCtf2xJAILqgH4/102fTtZdT3o7pZTZtcy7g1yg4X 791A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=oX7qYgxXYUDTnDWIrAAdrMAk23CW1FWOs8hQTp5c3yY=; b=rbzeWYhHkh3CXv6h7ySsgmG8HvXSEiGRHUB/07K/AGleUNKl95Av0UeMfz66Pj1Jjg eOpMdStCsAG/+WYXHs1kihCEYfKBUeNCUCOmOE0Q9glaIpuOBoQ399Skux05Js6Sdjr1 G0zh/rmJLYDMo+I/tBXo1mtiiKfsJsWuo6CjJ14CHD3lglfzDnoHYKxB/SI4gxdq0F8U J+j+GvMxXET7bAtB7Bg+NJ2A6yHsObWCp9mA3xYk40DoY/m8PXxpB+Q3Ka4L6QgZQaoa BsasF3UHovOpTQmOajBUgVkcekhbukApqRSVXdm/zhAAsCdsxBceu9wWKudElcIiETWM aOcA== X-Gm-Message-State: AOAM531XkbRD5uYUg4m1l59Iq7h7GBgrufQsB/QigdDo423cXHI5gBfN ocH1GHDkImMWessTaFQ+G/WQZA== X-Google-Smtp-Source: ABdhPJzWaBrIbWy1Gn3RmYAqSSx+0mMumwirKFFqogCYQtG1qxtNM3so9mUBItXCb//RX9HCWkhDEg== X-Received: by 2002:a05:6e02:20ed:: with SMTP id q13mr26252658ilv.235.1619706440821; Thu, 29 Apr 2021 07:27:20 -0700 (PDT) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id p1sm1453223ilp.10.2021.04.29.07.27.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Apr 2021 07:27:20 -0700 (PDT) Subject: Re: [PATCH][next][V2] io_uring: Fix premature return from loop and memory leak To: Colin King , Pavel Begunkov , io-uring@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org References: <20210429104602.62676-1-colin.king@canonical.com> From: Jens Axboe Message-ID: <8513d853-fd44-c90f-26ba-45b763b8879a@kernel.dk> Date: Thu, 29 Apr 2021 08:27:20 -0600 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: <20210429104602.62676-1-colin.king@canonical.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kernel-janitors@vger.kernel.org On 4/29/21 4:46 AM, Colin King wrote: > From: Colin Ian King > > Currently the -EINVAL error return path is leaking memory allocated > to data. Fix this by not returning immediately but instead setting > the error return variable to -EINVAL and breaking out of the loop. > > Kudos to Pavel Begunkov for suggesting a correct fix. Applied, thanks. -- Jens Axboe