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(unknown [9.47.158.152]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 10 Aug 2021 13:45:58 +0000 (GMT) From: Stefan Berger To: linux-integrity@vger.kernel.org Cc: zohar@linux.ibm.com, Stefan Berger Subject: [PATCH v2 2/8] evmctl: Handle engine initialization properly Date: Tue, 10 Aug 2021 09:45:51 -0400 Message-Id: <20210810134557.2444863-3-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210810134557.2444863-1-stefanb@linux.vnet.ibm.com> References: <20210810134557.2444863-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: GVkUAFZT1AIMKhv5ML8a37YJWn_S1CUl X-Proofpoint-GUID: GVkUAFZT1AIMKhv5ML8a37YJWn_S1CUl X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.790 definitions=2021-08-10_05:2021-08-10,2021-08-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 mlxlogscore=623 clxscore=1015 bulkscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108100087 Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org From: Stefan Berger Fix the following issue when passing a not available engine: $ ./src/evmctl --engine foo engine foo isn't available 140322992015168:error:25066067:DSO support routines:dlfcn_load:could not load the shared library:crypto/dso/dso_dlfcn.c:118:filename(/usr/lib64/engines-1.1/foo.so): /usr/lib64/engines-1.1/foo.so: cannot open shared object file: No such file or directory 140322992015168:error:25070067:DSO support routines:DSO_load:could not load the shared library:crypto/dso/dso_lib.c:162: 140322992015168:error:260B6084:engine routines:dynamic_load:dso not found:crypto/engine/eng_dyn.c:414: 140322992015168:error:2606A074:engine routines:ENGINE_by_id:no such engine:crypto/engine/eng_list.c:334:id=foo Segmentation fault (core dumped) Also, jump to the exit when the setup of the engine failed. Signed-off-by: Stefan Berger --- src/evmctl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/evmctl.c b/src/evmctl.c index 58f8e66..ed0ece3 100644 --- a/src/evmctl.c +++ b/src/evmctl.c @@ -2765,7 +2765,10 @@ int main(int argc, char *argv[]) ENGINE_free(eng); eng = NULL; } - ENGINE_set_default(eng, ENGINE_METHOD_ALL); + if (eng) + ENGINE_set_default(eng, ENGINE_METHOD_ALL); + else + goto error; break; case 140: /* --xattr-user */ xattr_ima = "user.ima"; @@ -2839,6 +2842,7 @@ int main(int argc, char *argv[]) err = 125; } +error: if (eng) { ENGINE_finish(eng); ENGINE_free(eng);