From owner-freebsd-net@freebsd.org Thu Jan 24 00:59:05 2019 Return-Path: Delivered-To: freebsd-net@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 3FCAE14B7E30 for ; Thu, 24 Jan 2019 00:59:05 +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 CFAE66D958 for ; Thu, 24 Jan 2019 00:59:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 92FB614B7E2F; Thu, 24 Jan 2019 00:59:04 +0000 (UTC) Delivered-To: net@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 8133A14B7E2E for ; Thu, 24 Jan 2019 00:59:04 +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 TLSv1.3 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.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 204B66D952 for ; Thu, 24 Jan 2019 00:59:04 +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 601AC8F85 for ; Thu, 24 Jan 2019 00:59:03 +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 x0O0x32A005043 for ; Thu, 24 Jan 2019 00:59:03 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x0O0x3mF005042 for net@FreeBSD.org; Thu, 24 Jan 2019 00:59:03 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: net@FreeBSD.org Subject: [Bug 235097] ci runs panic with use-after-free when running sys/netpfil/pf/nat tests Date: Thu, 24 Jan 2019 00:59:02 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: kp@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Jan 2019 00:59:05 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235097 --- Comment #10 from Kristof Provost --- The panic in comment #6 seems to happen because ifp->if_addr has been freed. (kgdb) fr #16 0xffffffff80d087e8 in rt_newmaddrmsg (cmd=3D520194696, ifma=3D0xfffff8000753ee00) at /usr/src/sys/net/rtsock.c:1436 1436 m =3D rtsock_msg_mbuf(cmd, &info); (kgdb) p info $8 =3D {rti_addrs =3D 18, rti_flags =3D 0, rti_info =3D {0x0, 0xfffff8006c4= cc300, 0x0, 0x0, 0xdeadc0dedeadc0de, 0xfffff800060102a0, 0x0, 0x0}, rti_ifa =3D 0x0, rt= i_ifp =3D 0x0, rti_filter =3D 0x0, rti_filterdata =3D 0x0, rti_mflags =3D 0, rti_spare = =3D 0, rti_rmx =3D 0x0} (kgdb) p *ifp->if_addr $9 =3D {ifa_addr =3D 0xdeadc0dedeadc0de, ifa_dstaddr =3D 0xdeadc0dedeadc0de, ifa_netmask =3D 0xdeadc0dedeadc0de, ifa_ifp =3D 0xdeadc0dedeadc0de, ifa_car= p =3D 0xdeadc0dedeadc0de, ifa_link =3D {cstqe_next =3D 0xdeadc0dedeadc0de}, ifa_rtrequest =3D 0xdeadc0dedeadc0de, ifa_flags =3D 49374, ifa_refcnt =3D 3735929054, ifa_ipa= ckets =3D 0xdeadc0dedeadc0de, ifa_opackets =3D 0xdeadc0dedeadc0de, ifa_ibytes =3D 0xdeadc0dedeadc0de, ifa_obytes =3D 0xdeadc0dedeadc0de, ifa_epoch_ctx =3D {data =3D {0xdeadc0ded= eadc0de, 0xdeadc0dedeadc0de}}} --=20 You are receiving this mail because: You are the assignee for the bug.=