From: Casey Schaufler <casey@schaufler-ca.com>
To: James Morris <jmorris@namei.org>,
Stephen Smalley <stephen.smalley@gmail.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>,
"Schaufler, Casey" <casey.schaufler@intel.com>,
LSM List <linux-security-module@vger.kernel.org>,
selinux@vger.kernel.org, keescook@chromium.org,
John Johansen <john.johansen@canonical.com>,
penguin-kernel@i-love.sakura.ne.jp,
Paul Moore <paul@paul-moore.com>,
casey@schaufler-ca.com
Subject: Re: Fwd: [PATCH v4 15/23] LSM: Specify which LSM to display
Date: Mon, 1 Jul 2019 18:20:17 -0700 [thread overview]
Message-ID: <8f860da5-6323-88d8-8b72-14ffaeac6a83@schaufler-ca.com> (raw)
In-Reply-To: <alpine.LRH.2.21.1907011745480.13468@namei.org>
On 7/1/2019 5:49 PM, James Morris wrote:
> On Fri, 28 Jun 2019, Stephen Smalley wrote:
>
>>> Balancing backward compatibility with new behavior is hard!
>>> What would you suggest for audit logs? Should we put all LSM
>>> data in every record? Is NFS a concern for anyone not using
>>> SELinux?
>> Yes to all on audit if stacking is going to be real. And yes, I think
>> other security modules will care about NFS if they are serious.
> Agreed.
>
> There must better way to approach this, somehow...
It not like I haven't proposed a number of mechanisms!
The "display" mechanism has the best backward compatibility
story, at the cost of being awkward/dangerous in the face of
sophisticated user space environments. A combined string
(smack='System",AppArmor='unconfined') sucks at compatibility,
but provides the best information.
Right now I'm looking at a way to prevent internal confusion.
I think that may be possible.
I'll point out that lib<lsm> has the option of verifying
the display before doing scary writes, but that's a lot of
work that no one is looking forward to.
next prev parent reply other threads:[~2019-07-02 1:20 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-26 19:22 [PATCH v4 00/23] LSM: Module stacking for AppArmor Casey Schaufler
2019-06-26 19:22 ` [PATCH v4 01/23] LSM: Infrastructure management of the superblock Casey Schaufler
2019-06-26 19:22 ` [PATCH v4 02/23] LSM: Infrastructure management of the sock security Casey Schaufler
2019-06-26 19:22 ` [PATCH v4 03/23] LSM: Infrastructure management of the key blob Casey Schaufler
2019-06-26 19:22 ` [PATCH v4 04/23] LSM: Create and manage the lsmblob data structure Casey Schaufler
2019-06-26 23:39 ` John Johansen
2019-06-27 17:43 ` Casey Schaufler
2019-06-26 19:22 ` [PATCH v4 05/23] LSM: Use lsmblob in security_audit_rule_match Casey Schaufler
2019-06-26 23:07 ` Kees Cook
2019-06-26 23:45 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 06/23] LSM: Use lsmblob in security_kernel_act_as Casey Schaufler
2019-06-26 23:07 ` Kees Cook
2019-06-26 23:47 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 07/23] net: Prepare UDS for secuirty module stacking Casey Schaufler
2019-06-26 23:07 ` Kees Cook
2019-06-26 23:48 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 08/23] LSM: Use lsmblob in security_secctx_to_secid Casey Schaufler
2019-06-26 23:07 ` Kees Cook
2019-06-26 23:50 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 09/23] LSM: Use lsmblob in security_secid_to_secctx Casey Schaufler
2019-06-26 23:07 ` Kees Cook
2019-06-26 23:51 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 10/23] LSM: Use lsmblob in security_ipc_getsecid Casey Schaufler
2019-06-26 23:08 ` Kees Cook
2019-06-26 23:53 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 11/23] LSM: Use lsmblob in security_task_getsecid Casey Schaufler
2019-06-26 23:08 ` Kees Cook
2019-06-26 23:55 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 12/23] LSM: Use lsmblob in security_inode_getsecid Casey Schaufler
2019-06-26 23:08 ` Kees Cook
2019-06-26 23:56 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 13/23] LSM: Use lsmblob in security_cred_getsecid Casey Schaufler
2019-06-26 23:09 ` Kees Cook
2019-06-26 23:57 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 14/23] IMA: Change internal interfaces to use lsmblobs Casey Schaufler
2019-06-26 23:09 ` Kees Cook
2019-06-26 23:58 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 15/23] LSM: Specify which LSM to display Casey Schaufler
2019-06-26 23:12 ` Kees Cook
2019-06-27 21:33 ` John Johansen
2019-06-28 14:45 ` Stephen Smalley
2019-06-28 16:15 ` Casey Schaufler
2019-06-28 18:08 ` John Johansen
[not found] ` <CAB9W1A1nwE7WBZqTe-GV8xNb83_B2ybV7cco++nfMjtDz9NJrg@mail.gmail.com>
2019-06-29 1:01 ` Fwd: " Stephen Smalley
2019-06-29 19:45 ` Casey Schaufler
2019-07-02 0:49 ` James Morris
2019-07-02 1:20 ` Casey Schaufler [this message]
2019-06-26 19:22 ` [PATCH v4 16/23] LSM: Use lsmcontext in security_secid_to_secctx Casey Schaufler
2019-06-26 23:14 ` Kees Cook
2019-06-27 21:34 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 17/23] " Casey Schaufler
2019-06-26 23:15 ` Kees Cook
2019-06-27 3:53 ` Kees Cook
2019-06-27 16:29 ` Casey Schaufler
2019-06-27 17:17 ` Kees Cook
2019-06-27 17:36 ` Casey Schaufler
2019-06-27 21:34 ` John Johansen
2019-06-27 21:36 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 18/23] LSM: Use lsmcontext in security_dentry_init_security Casey Schaufler
2019-06-26 23:15 ` Kees Cook
2019-06-27 21:34 ` John Johansen
2019-06-28 10:07 ` Ondrej Mosnacek
2019-06-26 19:22 ` [PATCH v4 19/23] LSM: Use lsmcontext in security_inode_getsecctx Casey Schaufler
2019-06-26 23:16 ` Kees Cook
2019-06-27 21:36 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 20/23] LSM: security_secid_to_secctx in netlink netfilter Casey Schaufler
2019-06-26 23:16 ` Kees Cook
2019-06-27 21:37 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 21/23] Audit: Store LSM audit information in an lsmblob Casey Schaufler
2019-06-26 23:16 ` Kees Cook
2019-06-27 21:37 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 22/23] NET: Store LSM netlabel data in a lsmblob Casey Schaufler
2019-06-26 23:18 ` Kees Cook
2019-06-27 21:38 ` John Johansen
2019-06-26 19:22 ` [PATCH v4 23/23] AppArmor: Remove the exclusive flag Casey Schaufler
2019-06-26 23:18 ` Kees Cook
2019-06-27 2:22 ` James Morris
2019-06-27 3:28 ` Kees Cook
2019-06-27 3:44 ` John Johansen
2019-06-27 3:49 ` James Morris
2019-06-27 21:38 ` John Johansen
2019-06-26 21:04 ` [PATCH v4 00/23] LSM: Module stacking for AppArmor Kees Cook
2019-06-26 21:11 ` John Johansen
2019-06-26 23:04 ` Kees Cook
2019-06-26 21:25 ` Casey Schaufler
2019-06-27 2:41 ` James Morris
2019-06-27 2:46 ` James Morris
2019-06-27 3:45 ` James Morris
2019-06-27 4:10 ` James Morris
2019-06-27 17:07 ` Kees Cook
2019-06-27 18:10 ` James Morris
2019-06-27 3:51 ` Kees Cook
2019-06-27 21:52 ` John Johansen
2019-06-27 22:33 ` Casey Schaufler
2019-06-27 23:16 ` James Morris
2019-06-27 23:44 ` John Johansen
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