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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 D0290C04AAF for ; Sat, 18 May 2019 20:27:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA8992082C for ; Sat, 18 May 2019 20:27:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729377AbfERU1O (ORCPT ); Sat, 18 May 2019 16:27:14 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:59906 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725446AbfERU1O (ORCPT ); Sat, 18 May 2019 16:27:14 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::3d8]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 912F614DF4C35; Sat, 18 May 2019 13:27:13 -0700 (PDT) Date: Sat, 18 May 2019 13:27:12 -0700 (PDT) Message-Id: <20190518.132712.1971625204431294331.davem@davemloft.net> To: jasowang@redhat.com Cc: mst@redhat.com, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, stefanha@redhat.com Subject: Re: [PATCH V2 0/4] Prevent vhost kthread from hogging CPU From: David Miller In-Reply-To: <1558067392-11740-1-git-send-email-jasowang@redhat.com> References: <1558067392-11740-1-git-send-email-jasowang@redhat.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sat, 18 May 2019 13:27:13 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Wang Date: Fri, 17 May 2019 00:29:48 -0400 > Hi: > > This series try to prevent a guest triggerable CPU hogging through > vhost kthread. This is done by introducing and checking the weight > after each requrest. The patch has been tested with reproducer of > vsock and virtio-net. Only compile test is done for vhost-scsi. > > Please review. > > This addresses CVE-2019-3900. > > Changs from V1: > - fix user-ater-free in vosck patch I am assuming that not only will mst review this, it will also go via his tree rather than mine. Thanks.