From owner-svn-src-all@freebsd.org Thu Jan 5 08:14:21 2017 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9DF24C9F3EC; Thu, 5 Jan 2017 08:14:21 +0000 (UTC) (envelope-from ngie@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 6D95113CB; Thu, 5 Jan 2017 08:14:21 +0000 (UTC) (envelope-from ngie@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v058EK6u069291; Thu, 5 Jan 2017 08:14:20 GMT (envelope-from ngie@FreeBSD.org) Received: (from ngie@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v058EKma069290; Thu, 5 Jan 2017 08:14:20 GMT (envelope-from ngie@FreeBSD.org) Message-Id: <201701050814.v058EKma069290@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ngie set sender to ngie@FreeBSD.org using -f From: Ngie Cooper Date: Thu, 5 Jan 2017 08:14:20 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r311381 - head/contrib/bsnmp/snmpd X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2017 08:14:21 -0000 Author: ngie Date: Thu Jan 5 08:14:20 2017 New Revision: 311381 URL: https://svnweb.freebsd.org/changeset/base/311381 Log: lsock_init_port: address issues with initializing sockaddr_un object - Use strlcpy to ensure p->name doesn't overflow sa.sun_path [*]. - Use SUN_LEN(..) instead of spelling out calculation longhand (inspired by comment by jmallett). Tested with: dgram and stream support with both bsnmpwalk and snmpwalk MFC after: 1 week Reported by: Coverity CID: 1006825 Modified: head/contrib/bsnmp/snmpd/trans_lsock.c Modified: head/contrib/bsnmp/snmpd/trans_lsock.c ============================================================================== --- head/contrib/bsnmp/snmpd/trans_lsock.c Thu Jan 5 08:04:04 2017 (r311380) +++ head/contrib/bsnmp/snmpd/trans_lsock.c Thu Jan 5 08:14:20 2017 (r311381) @@ -308,10 +308,9 @@ lsock_init_port(struct tport *tp) return (SNMP_ERR_RES_UNAVAIL); } - strcpy(sa.sun_path, p->name); + strlcpy(sa.sun_path, p->name, sizeof(sa.sun_path)); sa.sun_family = AF_LOCAL; - sa.sun_len = strlen(p->name) + - offsetof(struct sockaddr_un, sun_path); + sa.sun_len = SUN_LEN(&sa); (void)remove(p->name); @@ -363,10 +362,9 @@ lsock_init_port(struct tport *tp) return (SNMP_ERR_GENERR); } - strcpy(sa.sun_path, p->name); + strlcpy(sa.sun_path, p->name, sizeof(sa.sun_path)); sa.sun_family = AF_LOCAL; - sa.sun_len = strlen(p->name) + - offsetof(struct sockaddr_un, sun_path); + sa.sun_len = SUN_LEN(&sa); (void)remove(p->name);