From: Kees Cook <keescook@chromium.org>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: LSM <linux-security-module@vger.kernel.org>,
"James Morris" <jmorris@namei.org>,
"SE Linux" <selinux@tycho.nsa.gov>,
LKLM <linux-kernel@vger.kernel.org>,
"John Johansen" <john.johansen@canonical.com>,
"Tetsuo Handa" <penguin-kernel@i-love.sakura.ne.jp>,
"Paul Moore" <paul@paul-moore.com>,
"Stephen Smalley" <sds@tycho.nsa.gov>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"Alexey Dobriyan" <adobriyan@gmail.com>,
"Mickaël Salaün" <mic@digikod.net>,
"Salvatore Mesoraca" <s.mesoraca16@gmail.com>
Subject: Re: [PATCH 21/19] LSM: Cleanup and fixes from Tetsuo Handa
Date: Fri, 12 Oct 2018 13:07:46 -0700 [thread overview]
Message-ID: <CAGXu5j+31_T8ctncUrjkvWNKRD78TdRihm26hk=GD4Rva8TPBw@mail.gmail.com> (raw)
In-Reply-To: <CAGXu5j+XTMcqdPQK=E6KV3-oMCFA+UkiGsfHN2T6CCfAA7X9Qw@mail.gmail.com>
On Mon, Oct 1, 2018 at 2:48 PM, Kees Cook <keescook@chromium.org> wrote:
> On Wed, Sep 26, 2018 at 2:57 PM, Casey Schaufler <casey@schaufler-ca.com> wrote:
>> lsm_early_cred()/lsm_early_task() are called from only __init functions.
>>
>> lsm_cred_alloc()/lsm_file_alloc() are called from only security/security.c .
>>
>> lsm_early_inode() should be avoided because it is not appropriate to
>> call panic() when lsm_early_inode() is called after __init phase.
>>
>> Since all free hooks are called when one of init hooks failed, each
>> free hook needs to check whether init hook was called.
>>
>> The original changes are from Tetsuo Handa. I have made minor
>> changes in some places, but this is mostly his code.
>>
>> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
>> ---
>> include/linux/lsm_hooks.h | 6 ++----
>> security/security.c | 27 ++++-----------------------
>> security/selinux/hooks.c | 5 ++++-
>> security/selinux/include/objsec.h | 2 ++
>> security/smack/smack_lsm.c | 8 +++++++-
>> 5 files changed, 19 insertions(+), 29 deletions(-)
>
> I've split this across the various commits they touch:
>
> Infrastructure management of the cred security blob
> LSM: Infrastructure management of the file security
> LSM: Infrastructure management of the inode security
> LSM: Infrastructure management of the task security
> LSM: Blob sharing support for S.A.R.A and LandLock
>
> Based on these changes, I've uploaded the "v4.1", or "Casey is on
> vacation", tree here:
> https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=lsm/blob-sharing-v4.1
>
> I'm going to work on a merged series for the "arbitrary ordering" and
> "blob-sharing" trees next...
Here is my v6 (v5 plus small fix I noticed) with my refactoring of
Casey's blob-sharing series on top:
https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=lsm/ordering-v6-blob-sharing
procfs: add smack subdir to attrs
Smack: Abstract use of cred security blob
SELinux: Abstract use of cred security blob
SELinux: Remove cred security blob poisoning
SELinux: Remove unused selinux_is_enabled
AppArmor: Abstract use of cred security blob
TOMOYO: Abstract use of cred security blob
Infrastructure management of the cred security blob
SELinux: Abstract use of file security blob
Smack: Abstract use of file security blob
LSM: Infrastructure management of the file security
SELinux: Abstract use of inode security blob
Smack: Abstract use of inode security blob
LSM: Infrastructure management of the inode security
LSM: Infrastructure management of the task security
SELinux: Abstract use of ipc security blobs
Smack: Abstract use of ipc security blobs
LSM: Infrastructure management of the ipc security blob
TOMOYO: Update LSM flags to no longer be exclusive
Notably, the last patch from Casey's series is entirely removed.
Additionally all the per-LSM initialization changes were removed since
the blob size calculations now stay internal to security.c, done
during the "prepare" phase.
-Kees
--
Kees Cook
Pixel Security
prev parent reply other threads:[~2018-10-12 20:07 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 23:59 [PATCH v4 00/19] LSM: Module stacking for SARA and Landlock Casey Schaufler
2018-09-22 0:16 ` [PATCH v4 01/19] procfs: add smack subdir to attrs Casey Schaufler
2018-09-22 0:17 ` [PATCH v4 02/19] Smack: Abstract use of cred security blob Casey Schaufler
2018-09-22 2:44 ` Kees Cook
2018-09-22 0:17 ` [PATCH v4 03/19] SELinux: " Casey Schaufler
2018-09-22 0:17 ` [PATCH v4 04/19] SELinux: Remove cred security blob poisoning Casey Schaufler
2018-09-22 2:43 ` Kees Cook
2018-09-27 22:13 ` James Morris
2018-09-27 22:32 ` Casey Schaufler
2018-09-22 0:17 ` [PATCH v4 05/19] SELinux: Remove unused selinux_is_enabled Casey Schaufler
2018-09-22 2:43 ` Kees Cook
2018-09-22 0:17 ` [PATCH v4 06/19] AppArmor: Abstract use of cred security blob Casey Schaufler
2018-09-22 2:46 ` Kees Cook
2018-09-22 0:18 ` [PATCH v4 07/19] TOMOYO: " Casey Schaufler
2018-09-22 2:47 ` Kees Cook
2018-09-22 0:18 ` [PATCH v4 08/19] Infrastructure management of the " Casey Schaufler
2018-09-22 2:50 ` Kees Cook
2018-09-22 0:18 ` [PATCH v4 09/19] SELinux: Abstract use of file " Casey Schaufler
2018-09-22 0:18 ` [PATCH v4 10/19] Smack: " Casey Schaufler
2018-09-22 2:51 ` Kees Cook
2018-09-22 0:19 ` [PATCH v4 11/19] LSM: Infrastructure management of the file security Casey Schaufler
2018-09-22 2:53 ` Kees Cook
2018-09-22 0:19 ` [PATCH v4 12/19] SELinux: Abstract use of inode security blob Casey Schaufler
2018-09-22 0:19 ` [PATCH v4 13/19] Smack: " Casey Schaufler
2018-09-22 0:19 ` [PATCH v4 14/19] LSM: Infrastructure management of the inode security Casey Schaufler
2018-09-22 2:55 ` Kees Cook
2018-10-03 18:13 ` James Morris
2018-10-04 4:49 ` Casey Schaufler
2018-09-22 0:19 ` [PATCH v4 15/19] LSM: Infrastructure management of the task security Casey Schaufler
2018-09-22 2:56 ` Kees Cook
2018-09-22 0:19 ` [PATCH v4 16/19] SELinux: Abstract use of ipc security blobs Casey Schaufler
2018-09-22 2:56 ` Kees Cook
2018-09-22 0:19 ` [PATCH v4 17/19] Smack: " Casey Schaufler
2018-09-22 2:57 ` Kees Cook
2018-09-22 0:20 ` [PATCH v4 18/19] LSM: Infrastructure management of the ipc security blob Casey Schaufler
2018-09-22 2:58 ` Kees Cook
2018-09-22 0:20 ` [PATCH v4 19/19] LSM: Blob sharing support for S.A.R.A and LandLock Casey Schaufler
2018-09-22 0:22 ` [PATCH v4 09/19] SELinux: Abstract use of file security blob Casey Schaufler
2018-09-22 3:02 ` [PATCH v4 00/19] LSM: Module stacking for SARA and Landlock Kees Cook
2018-09-22 16:38 ` Casey Schaufler
2018-09-23 2:43 ` Kees Cook
2018-09-23 15:59 ` Tetsuo Handa
2018-09-23 17:09 ` Casey Schaufler
2018-09-24 1:53 ` Tetsuo Handa
2018-09-24 17:16 ` Casey Schaufler
2018-09-24 17:53 ` Tetsuo Handa
2018-09-24 20:33 ` Casey Schaufler
2018-09-24 15:01 ` Stephen Smalley
2018-09-24 16:15 ` Casey Schaufler
2018-09-24 17:22 ` Tetsuo Handa
2018-10-01 17:58 ` James Morris
2018-09-26 21:57 ` [PATCH v4 20/19] LSM: Correct file blob free empty blob check Casey Schaufler
2018-10-01 20:29 ` Kees Cook
2018-09-26 21:57 ` [PATCH 21/19] LSM: Cleanup and fixes from Tetsuo Handa Casey Schaufler
2018-10-01 21:48 ` Kees Cook
2018-10-12 20:07 ` Kees Cook [this message]
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