From owner-freebsd-bugs@freebsd.org Tue Apr 3 07:54:02 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 2108FF53577 for ; Tue, 3 Apr 2018 07:54:02 +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 B01066C5C8 for ; Tue, 3 Apr 2018 07:54:01 +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 CA63D173DB for ; Tue, 3 Apr 2018 07:54:00 +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 w337s02L068068 for ; Tue, 3 Apr 2018 07:54:00 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w337s02d068067 for freebsd-bugs@FreeBSD.org; Tue, 3 Apr 2018 07:54:00 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: freebsd-bugs@FreeBSD.org Subject: [Bug 227243] getaddrinfo(3): IPv4-only jail on IPv4+6 host gets ipv6 inaddr_any Date: Tue, 03 Apr 2018 07:54:00 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 11.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: phk@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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 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: Tue, 03 Apr 2018 07:54:02 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227243 Bug ID: 227243 Summary: getaddrinfo(3): IPv4-only jail on IPv4+6 host gets ipv6 inaddr_any Product: Base System Version: 11.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: phk@FreeBSD.org On 11.1-RELEASE-p4 amd64. The host has both IPv4 and IPv6 addresses configured. The jail has only an IPv4 address configured. getaddrinfo(3) with a NULL argument an AI_PASSIVE returns IPv6 address ("::= ") which cannot used to establish a listen socket because there are no IPv6 addresses in the jail. As far as I can tell, this happens because IPv6 is before IPv4 in afdl[] and explore_null() is not smart enough to spot it is in an IPv4-only jail. I'm not sure if this should be fixed in getaddrinfo.c or in the kernel (to = make socket(2) fail in IPv6 in IPv4 only jails). --=20 You are receiving this mail because: You are the assignee for the bug.=