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Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <87d0uqpba5.fsf@xmission.com> <153313703562.13253.5766498657900728120.stgit@warthog.procyon.org.uk> <22361.1533913891@warthog.procyon.org.uk> <20180810153902.GH21087@thunk.org> To: Casey Schaufler Cc: dhowells@redhat.com, "Theodore Y. Ts'o" , "Eric W. Biederman" , viro@zeniv.linux.org.uk, John Johansen , Tejun Heo , selinux@tycho.nsa.gov, Paul Moore , Li Zefan , linux-api@vger.kernel.org, apparmor@lists.ubuntu.com, fenghua.yu@intel.com, Greg Kroah-Hartman , Eric Biggers , linux-security-module@vger.kernel.org, Tetsuo Handa , Johannes Weiner , Stephen Smalley , tomoyo-dev-en@lists.sourceforge.jp, cgroups@vger.kernel.org, torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Miklos Szeredi Subject: Re: BUG: Mount ignores mount options MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <30316.1533917515.1@warthog.procyon.org.uk> Date: Fri, 10 Aug 2018 17:11:55 +0100 Message-ID: <30317.1533917515@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 10 Aug 2018 16:12:00 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 10 Aug 2018 16:12:00 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'dhowells@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Casey Schaufler wrote: > > P.S. And as Al has pointed out, this would require special, per-file > > system support to determine whether the mount options are conflicting > > or not.... > > This extends to LSMs that support mount options (SELinux and Smack) > as well. Yes. I'm doing that. David