From owner-svn-src-all@freebsd.org Fri Nov 29 03:31:48 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2F0C11C1B8E; Fri, 29 Nov 2019 03:31:48 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47PKn00RPVz4QVf; Fri, 29 Nov 2019 03:31:48 +0000 (UTC) (envelope-from cem@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E76808111; Fri, 29 Nov 2019 03:31:47 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xAT3VlPl016553; Fri, 29 Nov 2019 03:31:47 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xAT3VlHO016552; Fri, 29 Nov 2019 03:31:47 GMT (envelope-from cem@FreeBSD.org) Message-Id: <201911290331.xAT3VlHO016552@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: Conrad Meyer Date: Fri, 29 Nov 2019 03:31:47 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355204 - head/sbin/dhclient X-SVN-Group: head X-SVN-Commit-Author: cem X-SVN-Commit-Paths: head/sbin/dhclient X-SVN-Commit-Revision: 355204 X-SVN-Commit-Repository: base 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: 2.1.29 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: Fri, 29 Nov 2019 03:31:48 -0000 Author: cem Date: Fri Nov 29 03:31:47 2019 New Revision: 355204 URL: https://svnweb.freebsd.org/changeset/base/355204 Log: Fix braino in previous bugfix r300174 The previous revision missed the exact same error in a copy paste block of the same code in another function. Fix the identical case, too. A DHCP client identifier is simply the hardware type (one byte) concatenated with the hardware address (some variable number of bytes, but at most 16). Limit the size of the temporary buffer to match and the rest of the calculations shake out correctly. PR: 238022 Reported by: Young Submitted by: Young MFC after: I don't plan to but you should feel free Security: yes Modified: head/sbin/dhclient/dhclient.c Modified: head/sbin/dhclient/dhclient.c ============================================================================== --- head/sbin/dhclient/dhclient.c Fri Nov 29 03:14:10 2019 (r355203) +++ head/sbin/dhclient/dhclient.c Fri Nov 29 03:31:47 2019 (r355204) @@ -1782,7 +1782,7 @@ make_request(struct interface_info *ip, struct client_ } /* set unique client identifier */ - char client_ident[sizeof(struct hardware)]; + char client_ident[sizeof(ip->hw_address.haddr) + 1]; if (!options[DHO_DHCP_CLIENT_IDENTIFIER]) { int hwlen = (ip->hw_address.hlen < sizeof(client_ident)-1) ? ip->hw_address.hlen : sizeof(client_ident)-1;