From patchwork Mon Dec 3 17:01:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 10710163 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 513E914BD for ; Mon, 3 Dec 2018 17:47:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 422A22B05A for ; Mon, 3 Dec 2018 17:47:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 339DB2B0DF; Mon, 3 Dec 2018 17:47:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0597A2B05A for ; Mon, 3 Dec 2018 17:47:05 +0000 (UTC) Received: from localhost ([::1]:51167 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gTsJE-0000I1-3K for patchwork-qemu-devel@patchwork.kernel.org; Mon, 03 Dec 2018 12:47:04 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55344) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gTrbF-0003ON-9D for qemu-devel@nongnu.org; Mon, 03 Dec 2018 12:01:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gTrbB-0002vr-Lg for qemu-devel@nongnu.org; Mon, 03 Dec 2018 12:01:37 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:56580) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gTrbB-0002lk-7T for qemu-devel@nongnu.org; Mon, 03 Dec 2018 12:01:33 -0500 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wB3GuE2r033901 for ; Mon, 3 Dec 2018 12:01:15 -0500 Received: from e32.co.us.ibm.com (e32.co.us.ibm.com [32.97.110.150]) by mx0a-001b2d01.pphosted.com with ESMTP id 2p57kp3pgb-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 03 Dec 2018 12:01:14 -0500 Received: from localhost by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 3 Dec 2018 17:01:11 -0000 Received: from b03ledav005.gho.boulder.ibm.com (b03ledav005.gho.boulder.ibm.com [9.17.130.236]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wB3H1Apa18874400 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 3 Dec 2018 17:01:11 GMT Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E01FFBE059; Mon, 3 Dec 2018 17:01:10 +0000 (GMT) Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 551F3BE06D; Mon, 3 Dec 2018 17:01:10 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 3 Dec 2018 17:01:10 +0000 (GMT) From: Stefan Berger To: qemu-devel@nongnu.org Date: Mon, 3 Dec 2018 12:01:05 -0500 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181203170105.2367492-1-stefanb@linux.vnet.ibm.com> References: <20181203170105.2367492-1-stefanb@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18120317-0004-0000-0000-000014BC7B82 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010165; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000270; SDB=6.01126450; UDB=6.00585015; IPR=6.00906584; MB=3.00024428; MTD=3.00000008; XFM=3.00000015; UTC=2018-12-03 17:01:12 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18120317-0005-0000-0000-000089B9C6EE Message-Id: <20181203170105.2367492-3-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-12-03_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=558 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1812030158 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v2 2/2] tpm: Make sure new locality passed to tpm_tis_prep_abort() is valid 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: Stefan Berger , Stefan Berger , marcandre.lureau@gmail.com, ppandit@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Make sure that the new locality passed to tpm_tis_prep_abort() is valid. This is merely a precaution since none of the current callers passes an invalid locality number into this function. Add a comment to aborting_locty that it may be any locality, including TPM_TIS_NO_LOCALITY. Signed-off-by: Stefan Berger --- hw/tpm/tpm_tis.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c index 176d424ed9..9b2737b5bf 100644 --- a/hw/tpm/tpm_tis.c +++ b/hw/tpm/tpm_tis.c @@ -263,7 +263,10 @@ static void tpm_tis_prep_abort(TPMState *s, uint8_t locty, uint8_t newlocty) { uint8_t busy_locty; - s->aborting_locty = locty; + if (!TPM_TIS_IS_VALID_LOCTY(newlocty)) + return; + + s->aborting_locty = locty; /* may also be TPM_TIS_NO_LOCALITY */ s->next_locty = newlocty; /* locality after successful abort */ /*