From owner-freebsd-bugs@FreeBSD.ORG Fri Jul 4 12:00:08 2008 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F010D1065736 for ; Fri, 4 Jul 2008 12:00:08 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id CA9C18FC25 for ; Fri, 4 Jul 2008 12:00:08 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m64C08xG065393 for ; Fri, 4 Jul 2008 12:00:08 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m64C081T065392; Fri, 4 Jul 2008 12:00:08 GMT (envelope-from gnats) Resent-Date: Fri, 4 Jul 2008 12:00:08 GMT Resent-Message-Id: <200807041200.m64C081T065392@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Jeremy Chadwick Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C76591065682 for ; Fri, 4 Jul 2008 11:55:02 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA10.westchester.pa.mail.comcast.net (qmta10.westchester.pa.mail.comcast.net [76.96.62.17]) by mx1.freebsd.org (Postfix) with ESMTP id 746B38FC15 for ; Fri, 4 Jul 2008 11:55:02 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from OMTA10.westchester.pa.mail.comcast.net ([76.96.62.28]) by QMTA10.westchester.pa.mail.comcast.net with comcast id lmJ51Z00M0cZkys5AnksHE; Fri, 04 Jul 2008 11:44:52 +0000 Received: from koitsu.dyndns.org ([67.180.253.227]) by OMTA10.westchester.pa.mail.comcast.net with comcast id lnkz1Z0034v8bD73Wnkzxt; Fri, 04 Jul 2008 11:45:00 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 2A96A17B833; Fri, 4 Jul 2008 04:44:59 -0700 (PDT) Message-Id: <20080704114459.2A96A17B833@icarus.home.lan> Date: Fri, 4 Jul 2008 04:44:59 -0700 (PDT) From: Jeremy Chadwick To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/125261: Backport OpenBSD 4.3 patch for pf re-using state X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Jeremy Chadwick List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Jul 2008 12:00:09 -0000 >Number: 125261 >Category: kern >Synopsis: Backport OpenBSD 4.3 patch for pf re-using state >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Fri Jul 04 12:00:08 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Jeremy Chadwick >Release: FreeBSD 7.0-STABLE amd64 >Organization: >Environment: System: FreeBSD icarus.home.lan 7.0-STABLE FreeBSD 7.0-STABLE #0: Sat May 3 16:20:41 PDT 2008 root@icarus.home.lan:/usr/obj/usr/src/sys/PDSMI_PLUS_amd64 amd64 >Description: OpenBSD 4.3's pf contains a sufficient workaround for a problem where a state mismatch can occur as a result of a TCP port being re-used (SYN) before the state table entry is removed. The change is described here: http://www.openbsd.org/plus43.html * In pf(4), allow state reuse if both sides are in FIN_WAIT_2 and a new SYN arrives. >How-To-Repeat: n/a >Fix: CVS diff is here: http://www.openbsd.org/cgi-bin/cvsweb/src/sys/net/pf.c.diff?r2=1.559&r1=1.558&f=H This would have to be applied to src/sys/contrib/net/pf.c, inserted at line ~4762, for RELENG_7. I believe this can also be backported to RELENG_6. >Release-Note: >Audit-Trail: >Unformatted: