Date: Thu, 10 Nov 2005 14:16:25 +0100 From: "Simon L. Nielsen" <simon@FreeBSD.org> To: Gordon Bergling <gbergling@0xfce3.net> Cc: Doug White <dwhite@FreeBSD.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_subr.c src/sys/fs/devfs devfs_vnops.c Message-ID: <20051110131624.GC32410@eddie.nitro.dk> In-Reply-To: <20051110130406.GA832@node26.0xfce3.net> References: <200511092203.jA9M3omu013054@repoman.freebsd.org> <20051110130406.GA832@node26.0xfce3.net>
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[-- Attachment #1 --] On 2005.11.10 14:04:06 +0100, Gordon Bergling wrote: > Hi, > > * Thus spake Doug White (dwhite@FreeBSD.org): > > dwhite 2005-11-09 22:03:50 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/kern vfs_subr.c > > sys/fs/devfs devfs_vnops.c > > Log: > > This is a workaround for a complicated issue involving VFS cookies and devfs. > > The PR and patch have the details. The ultimate fix requires architectural > > changes and clarifications to the VFS API, but this will prevent the system > > from panicking when someone does "ls /dev" while running in a shell under the > > linuxulator. > > > > This issue affects HEAD and RELENG_6 only. > > > > PR: 88249 > > Submitted by: "Devon H. O'Dell" <dodell@ixsystems.com> > > MFC after: 3 days > > > > Revision Changes Path > > 1.128 +24 -0 src/sys/fs/devfs/devfs_vnops.c > > 1.652 +4 -0 src/sys/kern/vfs_subr.c > > Could this be MFC'ed to RELENG_6_0, too? I think its also a security > risk on shell servers, where linux emulation is installed and the server > runs 6.0-RELEASE. How is it a security risk? Because local users can panic the system or are there more significant risks? Note: We do not issue Security Advisories for local DoS vulnerabilities, but it could be MFC'ed as an errata, but it requires that the change has been in RELENG_6 for a while before that can be done. -- Simon L. Nielsen [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDc0goh9pcDSc1mlERAvmiAKCD0al5SdB7yXJXWquVhvZEM+O3QwCfdRxv dX4Es9Lh8HxlruL9gLOJNDA= =iT6t -----END PGP SIGNATURE-----
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