From owner-svn-src-all@freebsd.org Sat May 4 12:52:25 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5FFAF158D9A6; Sat, 4 May 2019 12:52:25 +0000 (UTC) (envelope-from tuexen@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 085A288EA7; Sat, 4 May 2019 12:52:25 +0000 (UTC) (envelope-from tuexen@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 D379C893D; Sat, 4 May 2019 12:52:24 +0000 (UTC) (envelope-from tuexen@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x44CqOKH087992; Sat, 4 May 2019 12:52:24 GMT (envelope-from tuexen@FreeBSD.org) Received: (from tuexen@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x44CqOlQ087991; Sat, 4 May 2019 12:52:24 GMT (envelope-from tuexen@FreeBSD.org) Message-Id: <201905041252.x44CqOlQ087991@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: tuexen set sender to tuexen@FreeBSD.org using -f From: Michael Tuexen Date: Sat, 4 May 2019 12:52:24 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r347117 - stable/12/sys/netinet X-SVN-Group: stable-12 X-SVN-Commit-Author: tuexen X-SVN-Commit-Paths: stable/12/sys/netinet X-SVN-Commit-Revision: 347117 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 085A288EA7 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.95)[-0.952,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] 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: Sat, 04 May 2019 12:52:25 -0000 Author: tuexen Date: Sat May 4 12:52:24 2019 New Revision: 347117 URL: https://svnweb.freebsd.org/changeset/base/347117 Log: MFC r345494: Fix the handling of fragmented unordered messages when using DATA chunks and FORWARD-TSN. This bug was reported in https://github.com/sctplab/usrsctp/issues/286 for the userland stack. This is joint work with rrs@. Modified: stable/12/sys/netinet/sctp_indata.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet/sctp_indata.c ============================================================================== --- stable/12/sys/netinet/sctp_indata.c Sat May 4 12:49:55 2019 (r347116) +++ stable/12/sys/netinet/sctp_indata.c Sat May 4 12:52:24 2019 (r347117) @@ -947,6 +947,15 @@ sctp_inject_old_unordered_data(struct sctp_tcb *stcb, SCTPDBG(SCTP_DEBUG_XXX, "chunk is a first fsn: %u becomes fsn_included\n", chk->rec.data.fsn); + at = TAILQ_FIRST(&control->reasm); + if (at && SCTP_TSN_GT(chk->rec.data.fsn, at->rec.data.fsn)) { + /* + * The first chunk in the reassembly is a smaller + * TSN than this one, even though this has a first, + * it must be from a subsequent msg. + */ + goto place_chunk; + } if (control->first_frag_seen) { /* * In old un-ordered we can reassembly on one