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=-4.0 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 90BAAC2BA2B for ; Mon, 6 Apr 2020 10:42:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 61D7D2082F for ; Mon, 6 Apr 2020 10:42:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="QH8n09bt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727074AbgDFKmC (ORCPT ); Mon, 6 Apr 2020 06:42:02 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:47594 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726926AbgDFKmB (ORCPT ); Mon, 6 Apr 2020 06:42:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586169720; 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=FqGYEjIImdWTgee2fIf/zfTRdiurl1mO572U3AitAp0=; b=QH8n09btlsvNIiBo8OYun0AOV70jz1uFFTPafaZzw8sYLdHTe+W+OJdu1Mga0JDnqnWhuG lTOBku2gb29MU/EjbDUIWjKMIvYXaJf8qDJgwGVtMuWYngZDnZ7mBPCjAykE8VWFnxIgfx uVfzQrhOmyW4jLwCppwqhbg3Ftw0C2s= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-95-k2X3gRLGMJOSGA8yVoaxOA-1; Mon, 06 Apr 2020 06:41:58 -0400 X-MC-Unique: k2X3gRLGMJOSGA8yVoaxOA-1 Received: by mail-wm1-f72.google.com with SMTP id d134so1152280wmd.0 for ; Mon, 06 Apr 2020 03:41:58 -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=FqGYEjIImdWTgee2fIf/zfTRdiurl1mO572U3AitAp0=; b=AOvMOu+UIQsdC0HLp2I4znzAhKNyIv34ZqcJljc03u3PheyxymWqMXNRTarH77QGnh qUrXone//YgeaEbihe8KzmQVqhUi7P6WGpdeoEBPmdqlqSq1RIZP59f5xpP50aSI59i8 AU4ioAXPR5ToGECb4rRxWO4XlSxKHh0OmEg1iS6AVpktqbGzcCE2KIpV25R1UmQwK91x ZNng4+ebzbBOhN0/9dSW0hYmvl4GcUjTN5RSEvEUAsiDFoWw79oZlCFEm2SKSRI+1ukC o2z3aockyOtqTi+5p5BuLjZbee54iumShsHTEK+OMz+0WaeXFLLneAmqC3dw0SSvq2TP JHlg== X-Gm-Message-State: AGi0Pubk8+foVbFIZfYTi9jbvG4AXVbPjaaI8sH8ZivtvKLvtRjXqDex 0Kd3cr6CGhOXkRi+sl5kMnkqQ7M+VXZit3BEc8Ykd3XPXLPHgiil802BKpWosA9b6TmrdlGhw0P 1nNh/Stj+UkD+VXdSrbUHIqyr X-Received: by 2002:a05:600c:2910:: with SMTP id i16mr21518941wmd.43.1586169717440; Mon, 06 Apr 2020 03:41:57 -0700 (PDT) X-Google-Smtp-Source: APiQypJPzINmfQ385QW26xQbfnWPsO2PkLIbN8craOWxA1Q9iUGl6xZlmMVJwWqmHJOQT0x2ogPi1A== X-Received: by 2002:a05:600c:2910:: with SMTP id i16mr21518922wmd.43.1586169717258; Mon, 06 Apr 2020 03:41:57 -0700 (PDT) Received: from vitty.brq.redhat.com (g-server-2.ign.cz. [91.219.240.2]) by smtp.gmail.com with ESMTPSA id a2sm17305337wra.71.2020.04.06.03.41.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Apr 2020 03:41:56 -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 v2 0/5] Drivers: hv: cleanup VMBus messages handling Date: Mon, 6 Apr 2020 12:41:49 +0200 Message-Id: <20200406104154.45010-1-vkuznets@redhat.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@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. Changes since v1: - Check that the payload size specified by the host is <= 240 bytes - Add Michael's R-b tags. 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 | 40 ++++++++++++++++++++----- include/linux/hyperv.h | 2 +- 4 files changed, 66 insertions(+), 38 deletions(-) -- 2.25.1