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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9A8D8C4332F for ; Tue, 22 Nov 2022 06:47:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kPz/c0J/AfNRZ6xVbLFCmTSiS4LbsTdB6+SuKrwBbOg=; b=tCkFgqCwOKgSu6IZg5OVVoy75i 1bMPX66btkYIms5dq4ca0fwLpHF3F6CltWl+FCsAAAP+sHANqQSAyZVPqlMz3fhYzage/zdkXoi1O S0W8c9jQPFj8bFMXQkGIUFkmhsDkClYGyMA6R+gQcEssaz2DJqjmguOq8c11NcH932X4z64MvdJeY gGT22+LJXaQxkR7ybcOftaI/99KGftUGyjbXF3XFFSyZ9xKmlVwmMbM+Wvan25I8FRPqMkkqhTmfO zRm6ush4aep7q8cn2iGt5Igyq51YUsmGgKRbiDkJsjdwjGYiFqTqXDalpzxY2d+BcMss/6M8f5RVz +gHoxp4A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oxN4T-0058KU-MG; Tue, 22 Nov 2022 06:47:53 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oxN4N-0058HR-8r for linux-nvme@lists.infradead.org; Tue, 22 Nov 2022 06:47:48 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 53AC568D05; Tue, 22 Nov 2022 07:47:43 +0100 (CET) Date: Tue, 22 Nov 2022 07:47:43 +0100 From: Christoph Hellwig To: Keith Busch Cc: Christoph Hellwig , Jens Axboe , Sagi Grimberg , linux-nvme@lists.infradead.org Subject: Re: block dangerous passthrough operation Message-ID: <20221122064743.GA14698@lst.de> References: <20221116130104.2186334-1-hch@lst.de> <256d34ff-3979-9780-4426-6d913a3a9707@kernel.dk> <20221121074647.GD24507@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221121_224747_473751_F81C02C4 X-CRM114-Status: GOOD ( 11.72 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Mon, Nov 21, 2022 at 08:35:42AM -0700, Keith Busch wrote: > It's not like just anyone can do this kind of craziness. It's like a > soft equivalent of pulling a cable. There are usually access > restrictions for untrusted people. Yes, there are. But that doesn't change us having to deal with the fallout.