From owner-freebsd-bugs@FreeBSD.ORG Sun Oct 2 04:20:08 2011 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 E5C34106566B for ; Sun, 2 Oct 2011 04:20:08 +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 BBF5F8FC0C for ; Sun, 2 Oct 2011 04:20:08 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p924K80n054392 for ; Sun, 2 Oct 2011 04:20:08 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p924K86e054391; Sun, 2 Oct 2011 04:20:08 GMT (envelope-from gnats) Date: Sun, 2 Oct 2011 04:20:08 GMT Message-Id: <201110020420.p924K86e054391@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org From: Hiroshi Saeki Cc: Subject: Re: kern/161159: FreeBSD-SA-11:05.unix patch causes Linux emulator X error X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Hiroshi Saeki List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Oct 2011 04:20:09 -0000 The following reply was made to PR kern/161159; it has been noted by GNATS. From: Hiroshi Saeki To: Chris , bug-followup@FreeBSD.org Cc: Subject: Re: kern/161159: FreeBSD-SA-11:05.unix patch causes Linux emulator X error Date: Sun, 02 Oct 2011 13:11:32 +0900 (2011/10/02 11:00), Chris wrote: > I can confirm this: Flash is dead as a doornail now. I sent send-pr,but those who are in The FreeBSD Project already knew this issue. In http://home.jp.freebsd.org/cgi-bin/showmail/FreeBSD-users-jp/93524 (In Japanese), Hiroki Sato,Core Team member, states: "The reason of this error is that FreeBSD-SA-11:05.unix makes another bug tangible. We will publish patch to fix this newer bug soon. Please wait a while." (my translation) Also, in From: "Bjoern A. Zeeb" To: Andrew Cc: freebsd-ports@freebsd.org Subject: Re: Linuxulator X11 broken? Date: Fri, 30 Sep 2011 09:08:34 +0000 Sender: owner-freebsd-ports@freebsd.org X-Mailer: Apple Mail (2.1084) Bjoern A. Zeeb,Security Team member, states: "It will always do that. There's a linuxolator bug in the kernel that the latest SAs unhid. People are working on it but it'll need fixing in all security branches so it's not a 3 minute task unfortunately. /bz" And Date: Fri, 30 Sep 2011 01:00:25 -0700 From: FreeBSD Security Officer To: freebsd-security@freebsd.org, freebsd-emulation@freebsd.org Subject: HEADS UP: breakage with linux emulation + SA-11:05.unix Message-ID: <4E857719.7060306@freebsd.org> Next in thread | Raw E-Mail | Index | Archive | Help Hi all, It appears that the security fix in SA-11:05.unix exposed a bug in the linux emulation code: Linux has a different size of sockaddr_un than FreeBSD, and the linux emulation code was passing socket addresses through without doing any translation first. This appears to break all X-using Linux code -- both applications and plugins such as the widely-used flash plugin -- and probably other Linux applications too. I am working on a fix for this and will send an updated advisory out as soon as it's ready. -- Colin Percival Security Officer, FreeBSD | freebsd.org | The power to serve Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid It seems to me that work is surely in progress before I sent send-pr. I don't want to confuse The FreeBSD Project developers. Regards, Hiroshi Saeki