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[23.128.96.18]) by mx.google.com with ESMTP id w25si6562870eds.522.2021.05.02.08.57.25; Sun, 02 May 2021 08:57:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="T/RsU0qU"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232002AbhEBP4p (ORCPT + 99 others); Sun, 2 May 2021 11:56:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230154AbhEBP4o (ORCPT ); Sun, 2 May 2021 11:56:44 -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 5447AC06174A; Sun, 2 May 2021 08:55:52 -0700 (PDT) Received: by mail-wm1-x330.google.com with SMTP id k128so1895465wmk.4; Sun, 02 May 2021 08:55:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4qSNjpnYVIrWjdPYzqg5I/2wMnH8TyjLJXPRqrLpUXY=; b=T/RsU0qUGKEeiTqc+DKhx+CgzqIe32Em9ieeJWEgxs+JgK1TiY6I/i4vptsQzh4uY6 x7YmnfC8HbYAx2qVTXEViF46/0tkJMwgQXAzKvMGJg8XE0HE1iAR8o3s1f4cXKLf4rKn zCWtnhbUrltCXWk/cVu+StEjp42SQ/OCwYZrt655UkkAxlrCndvuJ5Mki9LWeR6AWaFG u9/H2SQnv4EU5B+4sswKvmt/CZD9v7Sfb/FMteFt2d4UL4WKh62QPgMu1h5fIvv1wSKE 38q+GqsEotIoX/JqzYuX3HmmFeIDA9CsrrwDWaqKgv9/BAncWnj4PHAKcaQPReqZhwiJ 6gEg== 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=4qSNjpnYVIrWjdPYzqg5I/2wMnH8TyjLJXPRqrLpUXY=; b=cPGmHnpfKtVfKyMPq5KiJg3pJ/iCTfONNSR5YZD4mr1PvqkGhVXTq7f+spWJtZhlOs 5C9U0y9Wm6Px77aIBQuquA2pF7vOU3Exexo84sVvjejOG9P5obH8Od5/K6WMm6GzOGM+ xaWDkCYT7V2UBsq1dhlgyLTU4lvr9tvVry1JZsO0eYmMRLAXb2DxAEQEpSjvHtUVNc/2 jWSLtenXMmy9P/QyECGeHOEvO5gf8/uWTJIfkuPXO/lPSvdu1J5hPQG03GmxvnDqPX5a 5gPxQUgku2/1y9FXq29fdcC+gEaXAtZgmgyuIZsq/z86dKV/2a3iFVeMWNBm89cIZQFZ 6PXQ== X-Gm-Message-State: AOAM5336NTSgMysllqYdLfew5i1oC9B9Yok0B5CHjaFbo4b1Ep7RH0tt hQRh0yzetWxpVXj4UIFV/dioDIorsU8= X-Received: by 2002:a05:600c:4a19:: with SMTP id c25mr16780867wmp.94.1619970950806; Sun, 02 May 2021 08:55:50 -0700 (PDT) Received: from [192.168.8.197] ([185.69.145.156]) by smtp.gmail.com with ESMTPSA id f8sm8163830wmg.43.2021.05.02.08.55.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 02 May 2021 08:55:50 -0700 (PDT) Subject: Re: KASAN: stack-out-of-bounds Read in iov_iter_revert To: Palash Oswal Cc: Jens Axboe , io-uring@vger.kernel.org, LKML References: <4b2c435c-699b-b29f-6893-4beae6d004a9@gmail.com> From: Pavel Begunkov Message-ID: Date: Sun, 2 May 2021 16:55:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: 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 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