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=-7.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 3D651C433B4 for ; Sun, 2 May 2021 15:58:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1D79261362 for ; Sun, 2 May 2021 15:58:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231598AbhEBP7A (ORCPT ); Sun, 2 May 2021 11:59:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230110AbhEBP67 (ORCPT ); Sun, 2 May 2021 11:58:59 -0400 Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E152BC06174A; Sun, 2 May 2021 08:58:07 -0700 (PDT) Received: by mail-lj1-x22c.google.com with SMTP id d15so3937868ljo.12; Sun, 02 May 2021 08:58:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=aFpxfTKr2HRrDeHRZnDYfrEggt3RxLhJLELzvPzuWFw=; b=j8qSF5iTZ4KST8CIElWxP3hb2rpaKcMJOPH3ZQIEK2zp4DFZpw9xu1B4+i/58Z719m iLx+5agUfgiVifedWVMJvoDaE9FG2WZtLv7NGVH5mNa1EEbvt/nIUKJ5SAay/cbNZmGd vd19OjcoSXwuUTWIMr43K/gmdczhNtyujPFO1KAI84RjIGLC20peLZnswyfixOgNIxQb 3B4+vR5BnA2aCJjR1jktJbzCg2uIJLT8PtGxU0Wu+94jYCplNGN8MjvKouLqPk5Ph8zk i6fzd34Cx7SD/hsxIi7XJXCtIg4WiHZpcDMbaL1VJeJLlyuR0V41qZofzA3G6HX2oopN vsPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=aFpxfTKr2HRrDeHRZnDYfrEggt3RxLhJLELzvPzuWFw=; b=DHlF6Toj2RfRRHcetxscD8FqKRG3Kzw+tGW5ij2lKrOJQbZ14HfN7TwkZ1GAH9xwmR cfFWS0bxBuX70yBmOReC0fcYay4yh7pZ/6EpaolRZU4znAG5/21QxKLE9DYkiyhyKYKA P+eBNH3p0Zq3Ho5K0yf+7WXGq9Bc053tZy7c+EM+AwzjMdfPseu6rEqNwEA4mEP7H/Ds Zr0VLAhgrNy9VtyybnTVOzXOtAadAGK/MeHbdLHpSEmPCOysPqwHcV9EeW6BzcQrjBnc dY+uYvTDl7Vr+DAhFwMf2XkmTpxeA2xE+4eex0d8dTWutrH3G6DmdIFjaRGqegD5Pa5d wr0A== X-Gm-Message-State: AOAM532bhH3ARgIN4ujmBMZaY3WSRwTKOsxJAmMh99kqS+GGfIvlMl9G CbwlMquD+fhRgVQts26whq/pN/sNDmYNniJRoA3LMflirgM8JwCV X-Google-Smtp-Source: ABdhPJx1XbMUECycu+v4o3tcpzIH59tRxyYNnrOP117hrfu1DNdsbN7r7CC9iRVcWbLe+ilczHWt2/iwh+zwFa2pFMw= X-Received: by 2002:a2e:91d8:: with SMTP id u24mr5778345ljg.471.1619971086404; Sun, 02 May 2021 08:58:06 -0700 (PDT) MIME-Version: 1.0 References: <4b2c435c-699b-b29f-6893-4beae6d004a9@gmail.com> In-Reply-To: From: Palash Oswal Date: Sun, 2 May 2021 21:27:54 +0530 Message-ID: Subject: Re: KASAN: stack-out-of-bounds Read in iov_iter_revert To: Pavel Begunkov Cc: Jens Axboe , io-uring@vger.kernel.org, LKML Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Sun, May 2, 2021 at 9:25 PM Pavel Begunkov wrote: > > On 5/2/21 4:13 PM, Palash Oswal wrote: > > On Sun, May 2, 2021 at 4:07 PM Pavel Begunkov wrote: > >> May be related to > >> http://mail.spinics.net/lists/io-uring/msg07874.html > >> > >> Was it raw bdev I/O, or a normal filesystem? > > > > Normal filesystem. > > To avoid delays when I get to it, can you tell what fs it was? > Just it case it is an fs specific deviation > > -- > Pavel Begunkov root@syzkaller:~# mount /dev/sda on / type ext4 (rw,relatime) I used https://github.com/google/syzkaller/blob/master/tools/create-image.sh to build the qemu image.