From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35895) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gUCFf-0000su-48 for qemu-devel@nongnu.org; Tue, 04 Dec 2018 10:04:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gUCFb-0004cy-2e for qemu-devel@nongnu.org; Tue, 04 Dec 2018 10:04:43 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:51602) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gUCFa-0004ca-OT for qemu-devel@nongnu.org; Tue, 04 Dec 2018 10:04:39 -0500 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wB4F0inQ015189 for ; Tue, 4 Dec 2018 10:04:37 -0500 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0a-001b2d01.pphosted.com with ESMTP id 2p5urbgm6a-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 04 Dec 2018 10:04:37 -0500 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 4 Dec 2018 15:04:35 -0000 From: Stefan Berger Date: Tue, 4 Dec 2018 10:04:26 -0500 In-Reply-To: <20181204150427.2459814-1-stefanb@linux.vnet.ibm.com> References: <20181204150427.2459814-1-stefanb@linux.vnet.ibm.com> Message-Id: <20181204150427.2459814-3-stefanb@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v3 2/3] tpm: Make sure new locality passed to tpm_tis_prep_abort() is valid List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ppandit@redhat.com, marcandre.lureau@gmail.com, Stefan Berger , Stefan Berger Make sure that the new locality passed to tpm_tis_prep_abort() is valid. 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 | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c index 176d424ed9..04e4ad9212 100644 --- a/hw/tpm/tpm_tis.c +++ b/hw/tpm/tpm_tis.c @@ -263,7 +263,9 @@ static void tpm_tis_prep_abort(TPMState *s, uint8_t locty, uint8_t newlocty) { uint8_t busy_locty; - s->aborting_locty = locty; + assert(TPM_TIS_IS_VALID_LOCTY(newlocty)); + + s->aborting_locty = locty; /* may also be TPM_TIS_NO_LOCALITY */ s->next_locty = newlocty; /* locality after successful abort */ /* -- 2.17.1