From owner-svn-src-stable@freebsd.org Sun Dec 8 15:22:21 2019 Return-Path: Delivered-To: svn-src-stable@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 1B81E1E59DA; Sun, 8 Dec 2019 15:22:21 +0000 (UTC) (envelope-from ae@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 47W96h72PFz480t; Sun, 8 Dec 2019 15:22:20 +0000 (UTC) (envelope-from ae@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 EC9C64392; Sun, 8 Dec 2019 15:22:20 +0000 (UTC) (envelope-from ae@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xB8FMKAX006197; Sun, 8 Dec 2019 15:22:20 GMT (envelope-from ae@FreeBSD.org) Received: (from ae@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xB8FMKjg006196; Sun, 8 Dec 2019 15:22:20 GMT (envelope-from ae@FreeBSD.org) Message-Id: <201912081522.xB8FMKjg006196@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ae set sender to ae@FreeBSD.org using -f From: "Andrey V. Elsukov" Date: Sun, 8 Dec 2019 15:22:20 +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: r355528 - stable/12/sys/netipsec X-SVN-Group: stable-12 X-SVN-Commit-Author: ae X-SVN-Commit-Paths: stable/12/sys/netipsec X-SVN-Commit-Revision: 355528 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Dec 2019 15:22:21 -0000 Author: ae Date: Sun Dec 8 15:22:20 2019 New Revision: 355528 URL: https://svnweb.freebsd.org/changeset/base/355528 Log: MFC r355129: Add support for dummy ESP packets with next header field equal to IPPROTO_NONE. According to RFC4303 2.6 they should be silently dropped. Submitted by: aurelien.cazuc.external_stormshield.eu Sponsored by: Stormshield Differential Revision: https://reviews.freebsd.org/D22557 Modified: stable/12/sys/netipsec/xform_esp.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netipsec/xform_esp.c ============================================================================== --- stable/12/sys/netipsec/xform_esp.c Sun Dec 8 09:44:50 2019 (r355527) +++ stable/12/sys/netipsec/xform_esp.c Sun Dec 8 15:22:20 2019 (r355528) @@ -607,6 +607,13 @@ esp_input_cb(struct cryptop *crp) } } + /* + * RFC4303 2.6: + * Silently drop packet if next header field is IPPROTO_NONE. + */ + if (lastthree[2] == IPPROTO_NONE) + goto bad; + /* Trim the mbuf chain to remove trailing authenticator and padding */ m_adj(m, -(lastthree[1] + 2));