From owner-dev-commits-src-branches@freebsd.org Tue Jul 13 18:28:21 2021 Return-Path: Delivered-To: dev-commits-src-branches@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 09351662FE7; Tue, 13 Jul 2021 18:28:21 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GPTfD6xbZz4jCP; Tue, 13 Jul 2021 18:28:20 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id D52BE272AA; Tue, 13 Jul 2021 18:28:20 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 16DISKLh051164; Tue, 13 Jul 2021 18:28:20 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 16DISKc9051163; Tue, 13 Jul 2021 18:28:20 GMT (envelope-from git) Date: Tue, 13 Jul 2021 18:28:20 GMT Message-Id: <202107131828.16DISKc9051163@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Michael Tuexen Subject: git: 24df96b64253 - stable/13 - sctp: Fix length check for ECNE chunks MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: tuexen X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 24df96b642531eb62572599d28f932590be9ba20 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Jul 2021 18:28:21 -0000 The branch stable/13 has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=24df96b642531eb62572599d28f932590be9ba20 commit 24df96b642531eb62572599d28f932590be9ba20 Author: Michael Tuexen AuthorDate: 2021-06-27 14:10:39 +0000 Commit: Michael Tuexen CommitDate: 2021-07-13 18:27:58 +0000 sctp: Fix length check for ECNE chunks (cherry picked from commit 6587a2bd1e88b5b99aea114e3d20b0d4c48c95df) --- sys/netinet/sctp_input.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/sys/netinet/sctp_input.c b/sys/netinet/sctp_input.c index 442e58afd0ff..b822c9eae2ca 100644 --- a/sys/netinet/sctp_input.c +++ b/sys/netinet/sctp_input.c @@ -2887,10 +2887,6 @@ sctp_handle_ecn_echo(struct sctp_ecne_chunk *cp, unsigned int pkt_cnt; len = ntohs(cp->ch.chunk_length); - if ((len != sizeof(struct sctp_ecne_chunk)) && - (len != sizeof(struct old_sctp_ecne_chunk))) { - return; - } if (len == sizeof(struct old_sctp_ecne_chunk)) { /* Its the old format */ memcpy(&bkup, cp, sizeof(struct old_sctp_ecne_chunk)); @@ -5022,7 +5018,8 @@ process_control_chunks: if (stcb->asoc.ecn_supported == 0) { goto unknown_chunk; } - if (chk_length != sizeof(struct sctp_ecne_chunk)) { + if ((chk_length != sizeof(struct sctp_ecne_chunk)) && + (chk_length != sizeof(struct old_sctp_ecne_chunk))) { break; } sctp_handle_ecn_echo((struct sctp_ecne_chunk *)ch, stcb);