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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 CEFD0C43331 for ; Wed, 1 Apr 2020 10:36:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A350D2078B for ; Wed, 1 Apr 2020 10:36:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="S5mH9SLp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732170AbgDAKgp (ORCPT ); Wed, 1 Apr 2020 06:36:45 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:30067 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726335AbgDAKgp (ORCPT ); Wed, 1 Apr 2020 06:36:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1585737404; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=05QXKWS1KqcrFB5NhBgUw/ejOvygxZ7y1z56i9t/j7E=; b=S5mH9SLpD9gwnEjGqBHEsbxztEJxr4sSiIltZn9etYWg9uM5HUsvZbcSfFnR1/IYRIDWDc X5a8b5c+z+jD+4mqmEtCJZ3FadTWx95jMxrjzgb/wZsgmpN6kCMVt71qtDmy0yC0650x7N sEWwhN4FLpfvKkUamTozkbgjv2Pa+eQ= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-430-B7HVfewHOU-FlN9sjUz8lw-1; Wed, 01 Apr 2020 06:36:43 -0400 X-MC-Unique: B7HVfewHOU-FlN9sjUz8lw-1 Received: by mail-wm1-f70.google.com with SMTP id u6so1640426wmm.6 for ; Wed, 01 Apr 2020 03:36:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=05QXKWS1KqcrFB5NhBgUw/ejOvygxZ7y1z56i9t/j7E=; b=f8+65fTCrS7j9wf7LS39L5Z1znTb7WCPOU3fIX+x9xhoR9AMhTl9hmG8LF32+5MtQU nGqJYZ9gIxF00qeQo94nXsDtmWIu7Q8/QhbpaJEKelZ5H/oIvqyLynkbtz9YfNOCALOI Bm46W8IImv3uD3AuPDHaJvpYNcgkR0ILpJgQCNmpQtvaV3kygwZB3cruo78jj1eScdEo ynmmhTqBw/55TNXaZ62jQu36PWXWZr+Sm7XaeUzAsqZkLAGXmSk3LG+sypBJ8TEuyz3z FYKODAnkc5nIIT9HQKzwA0+Xwsp/kJsUO6EsfrfuwiDXhkGRDXklcx1DduOEldal3X8n 72GQ== X-Gm-Message-State: ANhLgQ2qH1AT7xknvy4Ndg5Ocf+0Oku0SQoLTJKxYcsVQvHG8TnKCFql b7xdFJNLiTYUZ5qHvhj6pKhNT4dZ0QOWVdnHUuCk/qcXgC+Aqz+O7PowMKy5EXLa9EKtBYRrZYn wJv6MAXwzUUopLhRWsrmpIfJh X-Received: by 2002:adf:a18c:: with SMTP id u12mr24808825wru.325.1585737401779; Wed, 01 Apr 2020 03:36:41 -0700 (PDT) X-Google-Smtp-Source: ADFU+vsk3gwZaCIoqXICrLYVNkXNloxQDGeyLUThiGBS8+UIEbwtoL5GPxoeWEZeSzECi02DkiyAtg== X-Received: by 2002:adf:a18c:: with SMTP id u12mr24808800wru.325.1585737401541; Wed, 01 Apr 2020 03:36:41 -0700 (PDT) Received: from vitty.brq.redhat.com (g-server-2.ign.cz. [91.219.240.2]) by smtp.gmail.com with ESMTPSA id b187sm2247522wmc.14.2020.04.01.03.36.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2020 03:36:40 -0700 (PDT) From: Vitaly Kuznetsov To: linux-hyperv@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Wei Liu , Tianyu Lan , Michael Kelley , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , "Andrea Parri (Microsoft)" Subject: [PATCH 0/5] Drivers: hv: cleanup VMBus messages handling Date: Wed, 1 Apr 2020 12:36:33 +0200 Message-Id: <20200401103638.1406431-1-vkuznets@redhat.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A small cleanup series mostly aimed at sanitizing memory we pass to message handlers: not passing garbage/lefrtovers from other messages and making sure we fail early when hypervisor misbehaves. No (real) functional change intended. Vitaly Kuznetsov (5): Drivers: hv: copy from message page only what's needed Drivers: hv: allocate the exact needed memory for messages Drivers: hv: avoid passing opaque pointer to vmbus_onmessage() Drivers: hv: make sure that 'struct vmbus_channel_message_header' compiles correctly Drivers: hv: check VMBus messages lengths drivers/hv/channel_mgmt.c | 61 ++++++++++++++++++++------------------- drivers/hv/hyperv_vmbus.h | 1 + drivers/hv/vmbus_drv.c | 34 +++++++++++++++++----- include/linux/hyperv.h | 2 +- 4 files changed, 60 insertions(+), 38 deletions(-) -- 2.25.1