From owner-dev-commits-src-main@freebsd.org Wed May 5 23:03:51 2021 Return-Path: Delivered-To: dev-commits-src-main@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 B98DB625E7A; Wed, 5 May 2021 23:03:51 +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 4FbC1z4tyqz4q6Y; Wed, 5 May 2021 23:03:51 +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 9ACC65657; Wed, 5 May 2021 23:03:51 +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 145N3psc001648; Wed, 5 May 2021 23:03:51 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 145N3pPh001647; Wed, 5 May 2021 23:03:51 GMT (envelope-from git) Date: Wed, 5 May 2021 23:03:51 GMT Message-Id: <202105052303.145N3pPh001647@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Michael Tuexen Subject: git: d1cb8d11b0c0 - main - sctp: improve consistency when handling chunks of wrong size 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/main X-Git-Reftype: branch X-Git-Commit: d1cb8d11b0c09c35b87c144bab7b02b75c5725b6 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-main@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for the main branch of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 May 2021 23:03:51 -0000 The branch main has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=d1cb8d11b0c09c35b87c144bab7b02b75c5725b6 commit d1cb8d11b0c09c35b87c144bab7b02b75c5725b6 Author: Michael Tuexen AuthorDate: 2021-05-05 23:02:41 +0000 Commit: Michael Tuexen CommitDate: 2021-05-05 23:02:41 +0000 sctp: improve consistency when handling chunks of wrong size MFC after: 3 days --- sys/netinet/sctp_input.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/sys/netinet/sctp_input.c b/sys/netinet/sctp_input.c index e1f096ea5817..050f30d145b7 100644 --- a/sys/netinet/sctp_input.c +++ b/sys/netinet/sctp_input.c @@ -4840,11 +4840,12 @@ process_control_chunks: break; case SCTP_SHUTDOWN_ACK: SCTPDBG(SCTP_DEBUG_INPUT3, "SCTP_SHUTDOWN_ACK, stcb %p\n", (void *)stcb); - if ((stcb != NULL) && (netp != NULL) && (*netp != NULL)) { + if ((chk_length == sizeof(struct sctp_shutdown_ack_chunk)) && + (stcb != NULL) && (netp != NULL) && (*netp != NULL)) { sctp_handle_shutdown_ack((struct sctp_shutdown_ack_chunk *)ch, stcb, *netp); + *offset = length; + return (NULL); } - *offset = length; - return (NULL); break; case SCTP_OPERATION_ERROR: SCTPDBG(SCTP_DEBUG_INPUT3, "SCTP_OP_ERR\n"); @@ -5032,12 +5033,13 @@ process_control_chunks: *offset = length; return (stcb); } - if ((stcb != NULL) && (netp != NULL) && (*netp != NULL)) { + if ((chk_length == sizeof(struct sctp_shutdown_complete_chunk)) && + (stcb != NULL) && (netp != NULL) && (*netp != NULL)) { sctp_handle_shutdown_complete((struct sctp_shutdown_complete_chunk *)ch, stcb, *netp); + *offset = length; + return (NULL); } - *offset = length; - return (NULL); break; case SCTP_ASCONF: SCTPDBG(SCTP_DEBUG_INPUT3, "SCTP_ASCONF\n");