From patchwork Sun Jul 19 12:20:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Levitsky X-Patchwork-Id: 277731 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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS 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 DC919C433E0 for ; Sun, 19 Jul 2020 12:22:15 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A1B5922B4D for ; Sun, 19 Jul 2020 12:22:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Nv0VLMc2" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A1B5922B4D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:59478 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jx8Kc-0006Nw-PL for qemu-devel@archiver.kernel.org; Sun, 19 Jul 2020 08:22:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41010) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jx8Je-0005Nx-UG for qemu-devel@nongnu.org; Sun, 19 Jul 2020 08:21:14 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:53193 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jx8Ja-0006YR-Gh for qemu-devel@nongnu.org; Sun, 19 Jul 2020 08:21:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595161266; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=8lwNYnUQPTalzoGTj1+5WQ+13m/BHPVqpPqSHb3Lo1Y=; b=Nv0VLMc2HCe4K5spzsuiG4ttqNX1TO03n92ajiiioIuLiXVhbUChcVxY8RLI/CcMfBUZIN Tb8h2wpzY+MgHhyV6jS/zbTozZ8rhcGm8LNIQfRbjOzbCGMQnMlB5aCKh9CkDWhqiNlFhz AUDPupnZsyeCob5LiHkFwsC0qmdMq1s= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-126-C-odP1sMNSWpe2YDI6cKLw-1; Sun, 19 Jul 2020 08:21:03 -0400 X-MC-Unique: C-odP1sMNSWpe2YDI6cKLw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E12F9100AA21; Sun, 19 Jul 2020 12:21:02 +0000 (UTC) Received: from starship.redhat.com (unknown [10.35.206.208]) by smtp.corp.redhat.com (Postfix) with ESMTP id 676A25D9CC; Sun, 19 Jul 2020 12:21:00 +0000 (UTC) From: Maxim Levitsky To: qemu-devel@nongnu.org Subject: [PATCH 0/2] Fix for write sharing on luks raw images Date: Sun, 19 Jul 2020 15:20:57 +0300 Message-Id: <20200719122059.59843-1-mlevitsk@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mlevitsk@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=mlevitsk@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/19 08:21:06 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Maxim Levitsky , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" A rebase gone wrong, and I ended up allowing a luks image to be opened at the same time by two VMs without any warnings/overrides. Fix that and also add an iotest to prevent this from happening. Best regards, Maxim Levisky Maxim Levitsky (2): block/crypto: disallow write sharing by default qemu-iotests: add testcase for bz #1857490 block/crypto.c | 2 +- tests/qemu-iotests/296 | 44 +++++++++++++++++++++++++++++++++++++- tests/qemu-iotests/296.out | 12 +++++++++-- 3 files changed, 54 insertions(+), 4 deletions(-) -- 2.26.2