From patchwork Thu Nov 22 16:54:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 1001887 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4315MH5KjGz9rxp for ; Fri, 23 Nov 2018 04:01:47 +1100 (AEDT) Received: from localhost ([::1]:47776 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gPsML-0008CQ-4V for incoming@patchwork.ozlabs.org; Thu, 22 Nov 2018 12:01:45 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37389) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gPsFa-0001uH-PU for qemu-devel@nongnu.org; Thu, 22 Nov 2018 11:54:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gPsFY-00012D-2l for qemu-devel@nongnu.org; Thu, 22 Nov 2018 11:54:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41562) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gPsFU-0000w7-EC; Thu, 22 Nov 2018 11:54:40 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 63022307EAAC; Thu, 22 Nov 2018 16:54:39 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-117-157.ams2.redhat.com [10.36.117.157]) by smtp.corp.redhat.com (Postfix) with ESMTP id 51C3A5D760; Thu, 22 Nov 2018 16:54:38 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Thu, 22 Nov 2018 17:54:15 +0100 Message-Id: <20181122165417.23894-12-kwolf@redhat.com> In-Reply-To: <20181122165417.23894-1-kwolf@redhat.com> References: <20181122165417.23894-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Thu, 22 Nov 2018 16:54:39 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 11/13] Revert "nvme: fix oob access issue(CVE-2018-16847)" X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This reverts commit 5e3c0220d7e4f0361c4d36c697a8842f2b583402. We have a better fix commited for this now. Signed-off-by: Kevin Wolf --- hw/block/nvme.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 8c35cab2b4..84062d388f 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -1177,10 +1177,6 @@ static void nvme_cmb_write(void *opaque, hwaddr addr, uint64_t data, unsigned size) { NvmeCtrl *n = (NvmeCtrl *)opaque; - - if (addr + size > NVME_CMBSZ_GETSIZE(n->bar.cmbsz)) { - return; - } memcpy(&n->cmbuf[addr], &data, size); } @@ -1189,9 +1185,6 @@ static uint64_t nvme_cmb_read(void *opaque, hwaddr addr, unsigned size) uint64_t val; NvmeCtrl *n = (NvmeCtrl *)opaque; - if (addr + size > NVME_CMBSZ_GETSIZE(n->bar.cmbsz)) { - return 0; - } memcpy(&val, &n->cmbuf[addr], size); return val; }