From owner-svn-src-all@FreeBSD.ORG Wed May 14 17:28:50 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 34259419; Wed, 14 May 2014 17:28:50 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 20FB62655; Wed, 14 May 2014 17:28:50 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s4EHSoqB048442; Wed, 14 May 2014 17:28:50 GMT (envelope-from tuexen@svn.freebsd.org) Received: (from tuexen@localhost) by svn.freebsd.org (8.14.8/8.14.8/Submit) id s4EHSnNF048441; Wed, 14 May 2014 17:28:49 GMT (envelope-from tuexen@svn.freebsd.org) Message-Id: <201405141728.s4EHSnNF048441@svn.freebsd.org> From: Michael Tuexen Date: Wed, 14 May 2014 17:28:49 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r266057 - stable/9/sys/netinet X-SVN-Group: stable-9 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: 2.1.18 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: Wed, 14 May 2014 17:28:50 -0000 Author: tuexen Date: Wed May 14 17:28:49 2014 New Revision: 266057 URL: http://svnweb.freebsd.org/changeset/base/266057 Log: MFC r257803: Make sure that we don't try to build an ASCONF-ACK chunk larger than what fits in the the mbuf cluster. This issue was reported by Andrew Galante. Modified: stable/9/sys/netinet/sctp_asconf.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/netinet/sctp_asconf.c ============================================================================== --- stable/9/sys/netinet/sctp_asconf.c Wed May 14 17:26:06 2014 (r266056) +++ stable/9/sys/netinet/sctp_asconf.c Wed May 14 17:28:49 2014 (r266057) @@ -2616,7 +2616,8 @@ sctp_compose_asconf(struct sctp_tcb *stc /* get the parameter length */ p_length = SCTP_SIZE32(aa->ap.aph.ph.param_length); /* will it fit in current chunk? */ - if (SCTP_BUF_LEN(m_asconf) + p_length > stcb->asoc.smallest_mtu) { + if ((SCTP_BUF_LEN(m_asconf) + p_length > stcb->asoc.smallest_mtu) || + (SCTP_BUF_LEN(m_asconf) + p_length > MCLBYTES)) { /* won't fit, so we're done with this chunk */ break; }