From patchwork Mon Nov 19 19:56:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mimi Zohar X-Patchwork-Id: 10689391 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 BFD356C5 for ; Mon, 19 Nov 2018 19:56:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B23A32A4DE for ; Mon, 19 Nov 2018 19:56:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A6A392A526; Mon, 19 Nov 2018 19:56:50 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 51B822A4DE for ; Mon, 19 Nov 2018 19:56:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730551AbeKTGVj (ORCPT ); Tue, 20 Nov 2018 01:21:39 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:44698 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730337AbeKTGVj (ORCPT ); Tue, 20 Nov 2018 01:21:39 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wAJJsSXS107439 for ; Mon, 19 Nov 2018 14:56:28 -0500 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 2nv0kygh26-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 19 Nov 2018 14:56:27 -0500 Received: from localhost by e06smtp03.uk.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, 19 Nov 2018 19:56:23 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wAJJuLIO2687318 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 19 Nov 2018 19:56:21 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6B715A4064; Mon, 19 Nov 2018 19:56:21 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 37BFDA4054; Mon, 19 Nov 2018 19:56:20 +0000 (GMT) Received: from dhcp-9-31-102-82.watson.ibm.com (unknown [9.31.102.82]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 19 Nov 2018 19:56:20 +0000 (GMT) From: Mimi Zohar To: linux-integrity@vger.kernel.org Cc: Mimi Zohar , linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, dhowells@redhat.com, jforbes@redhat.com, seth.forshee@canonical.com, kexec@lists.infradead.org, Nayna Jain Subject: [PATCH 0/3] selftest/ima: fail kexec_load syscall Date: Mon, 19 Nov 2018 14:56:08 -0500 X-Mailer: git-send-email 2.7.5 X-TM-AS-GCONF: 00 x-cbid: 18111919-0012-0000-0000-000002CCE816 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18111919-0013-0000-0000-000021020D83 Message-Id: <1542657371-7019-1-git-send-email-zohar@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-11-19_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=6 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=296 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1811190178 Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP The "ima: add support for arch specific policies" patch set introduced architecture specific policies, including an x86 policy which prevents loading a kernel image via the kexec_load syscall. This patch set preq's that patch set, adding a missing kexec_load syscall failure message, extending the existing support for detecting secureboot mode, and defining a kexec_load syscall selftest to simplify testing. To run the kexec_load test requires root privileges. Execute: "sudo make TARGETS=ima kselftest". With secure boot enabled, the kexec_load fails, but the test succeeds. selftests: ima: test_kexec_load.sh ======================================== ./test_kexec_load.sh: kexec_load failed [PASS] ok 1..1 selftests: ima: test_kexec_load.sh [PASS] Mimi Mimi Zohar (3): ima: add error mesage to kexec_load selftests/ima: kexec_load syscall test x86/ima: retry detecting secure boot mode arch/x86/kernel/Makefile | 2 + arch/x86/kernel/ima_arch.c | 46 +++++++++++++++++++++- include/linux/ima.h | 2 +- security/integrity/ima/ima_main.c | 4 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/ima/Makefile | 11 ++++++ tools/testing/selftests/ima/config | 4 ++ tools/testing/selftests/ima/test_kexec_load.sh | 54 ++++++++++++++++++++++++++ 8 files changed, 120 insertions(+), 4 deletions(-) create mode 100644 tools/testing/selftests/ima/Makefile create mode 100644 tools/testing/selftests/ima/config create mode 100755 tools/testing/selftests/ima/test_kexec_load.sh