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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EB16C433EF for ; Wed, 13 Apr 2022 20:48:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237619AbiDMUuX (ORCPT ); Wed, 13 Apr 2022 16:50:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232532AbiDMUuU (ORCPT ); Wed, 13 Apr 2022 16:50:20 -0400 Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35A4350470; Wed, 13 Apr 2022 13:47:57 -0700 (PDT) Received: by mail-ej1-x62a.google.com with SMTP id l7so6387843ejn.2; Wed, 13 Apr 2022 13:47:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=CAAnlEczhzmwiiUomiVlc0ZiocMImLzsGeEoBJQeHzQ=; b=c3nT3xD7XU0MWgpY86pi4lDdID4ySVqTE/1C98vzR0kJiHPonHeBH0GU1HuChqUGyE UpBag1pr//pEDDgun7N9oygVdwEPe/QHh7AhwZJ7E29hnK02IHlPW3qjiPjdrNMUKjUB m/ACRO66qRVpY1HeV58JF45hOWiJua00SMUqpJ3TdWTm2R3vX9oAv1q4WVhqcog0URfB 3dO3944uavA6O6mgkfhFzXP/09jyvz7VRUJY2qFUdhrFfWkOKsMmWBpNCSgWi2XAcCV/ VRcgD97YhYV8sK0NlvmIDpaU0JqTMmafIjyi8hrqKy9AYmwgKBe0EYwHVr34YZ/F5Lw8 YTCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=CAAnlEczhzmwiiUomiVlc0ZiocMImLzsGeEoBJQeHzQ=; b=uGiCN/sm3ZShroWH4ut+uELjpxzs9rDcKkb7XO69VkZyddm/Ms5uMFJc2jidzdOE2B YTML8O8ZEaS8/WAi8b4C3u7V2/lm5x5ohkIgyNxYDh4Jk5hJgukXJbr0pIFJljf6S9k2 LigHBxpwV1myyu/DXC0px/4P+MHJzGo2t9vms7PcC4vlxdUfc5FlnuMWdUb9YAQ0HDot tfcebIxADg2hPA5zzopxLXa8e7ELUAWlg6gYgKxUZWALq2jky0PzwjG8J4BCva69efR/ wPlrYJqPcyWtm3wYxQE/9KVcGIzSGC2n+YcW5DPLCrnM6G+4qKTBon5Q4YfyWo6Tt+4E XFAg== X-Gm-Message-State: AOAM530zC+Hzi3ilYrPo0ijdlhAs03tVWrZIPVQIJ+egYan8FcF70O1H GsiTok+tWb9RcOCy+rgxivc= X-Google-Smtp-Source: ABdhPJz5FFD/9vp0qQEvMaltsIVTNbvBYFnN863Pr155FR4NkEaORH9Jnyt5J40E+ppbX3kTSaW2vw== X-Received: by 2002:a17:907:7296:b0:6e8:97c1:a7ef with SMTP id dt22-20020a170907729600b006e897c1a7efmr13352185ejc.262.1649882875639; Wed, 13 Apr 2022 13:47:55 -0700 (PDT) Received: from anparri.mshome.net (host-79-52-64-69.retail.telecomitalia.it. [79.52.64.69]) by smtp.gmail.com with ESMTPSA id u6-20020a170906408600b006e87d654270sm5021ejj.44.2022.04.13.13.47.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 13:47:54 -0700 (PDT) From: "Andrea Parri (Microsoft)" To: KY Srinivasan , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , Michael Kelley , Stefano Garzarella , David Miller , Jakub Kicinski , Paolo Abeni Cc: linux-hyperv@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Andrea Parri (Microsoft)" Subject: [RFC PATCH 0/6] hv_sock: Hardening changes Date: Wed, 13 Apr 2022 22:47:36 +0200 Message-Id: <20220413204742.5539-1-parri.andrea@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Miscellaneous changes to "harden" the hv_sock driver and enable it in isolated guests. The diff in ring_buffer.c, hyperv.h is due to a consequent refactoring/code elimination (patch #6). Applies to v5.18-rc2. Thanks, Andrea Andrea Parri (Microsoft) (6): hv_sock: Check hv_pkt_iter_first_raw()'s return value hv_sock: Copy packets sent by Hyper-V out of the ring buffer hv_sock: Add validation for untrusted Hyper-V values hv_sock: Initialize send_buf in hvs_stream_enqueue() Drivers: hv: vmbus: Accept hv_sock offers in isolated guests Drivers: hv: vmbus: Refactor the ring-buffer iterator functions drivers/hv/channel_mgmt.c | 9 ++++-- drivers/hv/ring_buffer.c | 11 ++++---- include/linux/hyperv.h | 48 ++++++++++---------------------- net/vmw_vsock/hyperv_transport.c | 24 ++++++++++++---- 4 files changed, 46 insertions(+), 46 deletions(-) -- 2.25.1