From: "Ahmed S. Darwish" <darwish.07@gmail.com>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: LSM <linux-security-module@vger.kernel.org>,
James Morris <jmorris@namei.org>,
LKM <linux-kernel@vger.kernel.org>,
SE Linux <selinux@tycho.nsa.gov>,
John Johansen <john.johansen@canonical.com>,
Kees Cook <keescook@chromium.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Paul Moore <paul@paul-moore.com>,
Stephen Smalley <sds@tycho.nsa.gov>,
"Schaufler, Casey" <casey.schaufler@intel.com>
Subject: Re: [PATCH 01/10] procfs: add smack subdir to attrs
Date: Tue, 11 Sep 2018 23:45:38 +0000 [thread overview]
Message-ID: <20180911234538.GB12337@darwi-kernel> (raw)
In-Reply-To: <c43599b8-20f6-0cc6-28d7-abff4c0d0a0d@schaufler-ca.com>
On Tue, Sep 11, 2018 at 09:41:32AM -0700, Casey Schaufler wrote:
> Back in 2007 I made what turned out to be a rather serious
> mistake in the implementation of the Smack security module.
> The SELinux module used an interface in /proc to manipulate
> the security context on processes. Rather than use a similar
> interface, I used the same interface. The AppArmor team did
> likewise. Now /proc/.../attr/current will tell you the
> security "context" of the process, but it will be different
> depending on the security module you're using.
>
> This patch provides a subdirectory in /proc/.../attr for
> Smack. Smack user space can use the "current" file in
> this subdirectory and never have to worry about getting
> SELinux attributes by mistake. Programs that use the
> old interface will continue to work (or fail, as the case
> may be) as before.
>
Did downstream distributions already merge the stacking patches on
their own?
Got a little-bit confused after reading the log above; I already see
this in in Ubuntu 18.04.1 LTS, v4.15.0-33-generic:
$ tree /proc/self/attr/
/proc/self/attr/
├── apparmor
│ ├── current
│ ├── exec
│ └── prev
├── current
├── display_lsm
├── exec
├── fscreate
├── keycreate
├── prev
├── selinux
│ ├── current
│ ├── exec
│ ├── fscreate
│ ├── keycreate
│ ├── prev
│ └── sockcreate
├── smack
│ └── current
└── sockcreate
Thanks,
--
Darwi
http://darwish.chasingpointers.com
next prev parent reply other threads:[~2018-09-11 23:45 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 16:26 [PATCH v2 00/10] LSM: Module stacking in support of S.A.R.A and Landlock Casey Schaufler
2018-09-11 16:41 ` [PATCH 01/10] procfs: add smack subdir to attrs Casey Schaufler
2018-09-11 23:45 ` Ahmed S. Darwish [this message]
2018-09-12 0:01 ` Casey Schaufler
2018-09-12 22:57 ` Kees Cook
2018-09-11 16:41 ` [PATCH 02/10] Smack: Abstract use of cred security blob Casey Schaufler
2018-09-12 23:04 ` Kees Cook
2018-09-11 16:41 ` [PATCH 03/10] SELinux: " Casey Schaufler
2018-09-12 23:10 ` Kees Cook
2018-09-11 16:41 ` [PATCH 04/10] LSM: Infrastructure management of the " Casey Schaufler
2018-09-12 23:53 ` Kees Cook
2018-09-13 19:01 ` Casey Schaufler
2018-09-13 21:12 ` Kees Cook
2018-09-11 16:41 ` [PATCH 05/10] SELinux: Abstract use of file " Casey Schaufler
2018-09-12 23:54 ` Kees Cook
2018-09-11 16:42 ` [PATCH 06/10] LSM: Infrastructure management of the " Casey Schaufler
2018-09-13 0:00 ` Kees Cook
2018-09-11 16:42 ` [PATCH 07/10] SELinux: Abstract use of inode " Casey Schaufler
2018-09-13 0:23 ` Kees Cook
2018-09-11 16:42 ` [PATCH 08/10] Smack: " Casey Schaufler
2018-09-13 0:24 ` Kees Cook
2018-09-11 16:42 ` [PATCH 09/10] LSM: Infrastructure management of the inode security Casey Schaufler
2018-09-13 0:30 ` Kees Cook
2018-09-11 16:42 ` [PATCH 10/10] LSM: Blob sharing support for S.A.R.A and LandLock Casey Schaufler
2018-09-13 4:19 ` Kees Cook
2018-09-13 13:16 ` Paul Moore
2018-09-13 15:19 ` Kees Cook
2018-09-13 19:12 ` Paul Moore
2018-09-13 20:58 ` Jordan Glover
2018-09-13 21:50 ` Paul Moore
2018-09-13 22:04 ` Jordan Glover
2018-09-13 23:01 ` Casey Schaufler
2018-09-13 21:01 ` Kees Cook
2018-09-13 21:38 ` Paul Moore
2018-09-13 21:51 ` Kees Cook
2018-09-13 23:06 ` Kees Cook
2018-09-13 23:32 ` John Johansen
2018-09-13 23:51 ` Kees Cook
2018-09-14 0:03 ` Casey Schaufler
2018-09-14 0:06 ` Kees Cook
2018-09-13 23:51 ` Casey Schaufler
2018-09-13 23:57 ` Kees Cook
2018-09-14 0:08 ` Casey Schaufler
2018-09-14 0:19 ` Kees Cook
2018-09-14 15:57 ` Casey Schaufler
2018-09-14 20:05 ` Kees Cook
2018-09-14 20:47 ` Casey Schaufler
2018-09-14 18:18 ` James Morris
2018-09-14 18:23 ` John Johansen
2018-09-14 0:03 ` Kees Cook
2018-09-14 2:42 ` Paul Moore
2018-09-11 20:43 ` [PATCH v2 00/10] LSM: Module stacking in support of S.A.R.A and Landlock James Morris
2018-09-12 21:29 ` James Morris
2018-09-16 16:54 ` Salvatore Mesoraca
2018-09-16 17:25 ` Casey Schaufler
2018-09-16 17:45 ` Salvatore Mesoraca
2018-09-18 7:44 ` Mickaël Salaün
2018-09-18 15:23 ` Casey Schaufler
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