Date: Fri, 30 Sep 2011 01:00:25 -0700 From: FreeBSD Security Officer <cperciva@freebsd.org> 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>
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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
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