From patchwork Wed Jan 2 13:13:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honggang LI X-Patchwork-Id: 10746345 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 AA97591E for ; Wed, 2 Jan 2019 13:14:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9B43B28813 for ; Wed, 2 Jan 2019 13:14:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8F9222884B; Wed, 2 Jan 2019 13:14:25 +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 vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4EE2A28813 for ; Wed, 2 Jan 2019 13:14:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729450AbfABNOZ (ORCPT ); Wed, 2 Jan 2019 08:14:25 -0500 Received: from mx1.redhat.com ([209.132.183.28]:50426 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726939AbfABNOZ (ORCPT ); Wed, 2 Jan 2019 08:14:25 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E91647F410; Wed, 2 Jan 2019 13:14:24 +0000 (UTC) Received: from localhost (ovpn-12-97.pek2.redhat.com [10.72.12.97]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4ABE460C67; Wed, 2 Jan 2019 13:14:24 +0000 (UTC) From: Honggang Li To: hal@dev.mellanox.co.il Cc: linux-rdma@vger.kernel.org, Honggang Li Subject: [ibsim patch 12/23] sim_cmd.c: sim_cmd_file should check the char pointer before dereferening Date: Wed, 2 Jan 2019 21:13:07 +0800 Message-Id: <20190102131318.5765-12-honli@redhat.com> In-Reply-To: <20190102131318.5765-1-honli@redhat.com> References: <20190102131318.5765-1-honli@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 02 Jan 2019 13:14:25 +0000 (UTC) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Honggang Li --- ibsim/sim_cmd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/ibsim/sim_cmd.c b/ibsim/sim_cmd.c index 1d36c600814f..0a94c68bdf21 100644 --- a/ibsim/sim_cmd.c +++ b/ibsim/sim_cmd.c @@ -1149,11 +1149,16 @@ int sim_cmd_file(FILE * f, char *s) FILE *cmd_file; char *p; + if (!s) { + fprintf(f, "do_cmd_from_file: no file name - skip\n"); + return -1; + } + s++; while (isspace(*s)) s++; - if (!s || !*s) { + if (!*s) { fprintf(f, "do_cmd_from_file: no file name - skip\n"); return -1; }