From owner-freebsd-bugs@freebsd.org Sat Apr 21 18:34:28 2018 Return-Path: Delivered-To: freebsd-bugs@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 4BA49FB8FD6 for ; Sat, 21 Apr 2018 18:34:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id D7C8E730A6 for ; Sat, 21 Apr 2018 18:34:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 8E6D8FB8FD5; Sat, 21 Apr 2018 18:34:27 +0000 (UTC) Delivered-To: bugs@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 7BB86FB8FD4 for ; Sat, 21 Apr 2018 18:34:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 076AA730A1 for ; Sat, 21 Apr 2018 18:34:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 2A6AC16302 for ; Sat, 21 Apr 2018 18:34:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w3LIYQF1084387 for ; Sat, 21 Apr 2018 18:34:26 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w3LIYQaf084386 for bugs@FreeBSD.org; Sat, 21 Apr 2018 18:34:26 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 227674] [ipfw] [ipv6] ICMPv6 echo replies incorrectly matched by kernel ipfw Date: Sat, 21 Apr 2018 18:34:26 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: eugen@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cc Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Apr 2018 18:34:28 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227674 Bug ID: 227674 Summary: [ipfw] [ipv6] ICMPv6 echo replies incorrectly matched by kernel ipfw Product: Base System Version: 11.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: eugen@freebsd.org CC: ae@FreeBSD.org, glebius@FreeBSD.org This is very similar to old PR https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D131817 fixed 6 years ag= o with https://svnweb.freebsd.org/base?view=3Drevision&revision=3D223753 Now ipfw rule "deny log ip from any to any out recv re0 xmit re0" incorrect= ly matches outgoing ICMPv6 echo replies sent by the system in response to inco= ming echo request. The reply should not have "recv" attribute and should not be matched. I suspect that as in older ARP problem, the code re-uses mbuf and forgets to nullify m->m_pkthdr.rcvif --=20 You are receiving this mail because: You are the assignee for the bug.=