[GIT PULL] Security subsystem: integrity updates for v4.15

[GIT PULL] Security subsystem: integrity updates for v4.15

[James Morris]

Hi Linus,

Please pull these fixes for the Integrity subsystem.

(From Mimi)

"There is a mixture of bug fixes, code cleanup, preparatory code for new 
functionality and new functionality.

Commit 26ddabfe96bb "evm: enable EVM when X509 certificate is loaded" 
enabled EVM without loading a symmetric key, but was limited to defining 
the x509 certificate pathname at build.  Included in this set of patches 
is the ability of enabling EVM, without loading the EVM symmetric key, 
from userspace.  New is the ability to prevent the loading of an EVM 
symmetric key."

---

The following changes since commit 34d8751fd4ffa34e85ee7e85d34168b3f3f62b42:

  MAINTAINERS: update the IMA, EVM, trusted-keys, encrypted-keys entries (2017-11-06 02:21:44 +1100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next-integrity

for you to fetch changes up to e5729f86a2987c9404f9b2fb494b9a6fc4412baf:

  ima: Remove redundant conditional operator (2017-11-08 15:16:36 -0500)

----------------------------------------------------------------
Boshi Wang (1):
      ima: fix hash algorithm initialization

Bruno E. O. Meneguele (2):
      module: export module signature enforcement status
      ima: check signature enforcement against cmdline param instead of CONFIG

Christoph Hellwig (1):
      integrity: use kernel_read_file_from_path() to read x509 certs

Matthew Garrett (3):
      EVM: Include security.apparmor in EVM measurements
      EVM: Allow userspace to signal an RSA key has been loaded
      EVM: Only complain about a missing HMAC key once

Mimi Zohar (4):
      vfs: fix mounting a filesystem with i_version
      ima: don't remove the securityfs policy file
      ima: always measure and audit files in policy
      ima: call ima_file_free() prior to calling fasync

Thiago Jung Bauermann (1):
      ima: Remove redundant conditional operator

Thomas Meyer (1):
      ima: Fix bool initialization/comparison

 Documentation/ABI/testing/evm         | 47 ++++++++++++++++--------
 fs/file_table.c                       |  2 +-
 fs/namespace.c                        |  3 +-
 include/linux/fs.h                    |  1 +
 include/linux/module.h                |  7 ++++
 include/uapi/linux/xattr.h            |  3 ++
 kernel/module.c                       | 10 ++++++
 security/integrity/digsig.c           | 14 +++++---
 security/integrity/evm/evm.h          |  3 ++
 security/integrity/evm/evm_crypto.c   |  2 +-
 security/integrity/evm/evm_main.c     |  3 ++
 security/integrity/evm/evm_secfs.c    | 29 ++++++++-------
 security/integrity/iint.c             | 49 -------------------------
 security/integrity/ima/ima_api.c      | 67 ++++++++++++++++++++++-------------
 security/integrity/ima/ima_appraise.c |  4 +--
 security/integrity/ima/ima_crypto.c   | 10 ++++++
 security/integrity/ima/ima_fs.c       |  6 ++--
 security/integrity/ima/ima_main.c     | 23 +++++++-----
 security/integrity/ima/ima_policy.c   |  6 ++--
 security/integrity/integrity.h        |  2 --
 20 files changed, 165 insertions(+), 126 deletions(-)
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[GIT PULL] Security subsystem: integrity updates for v4.15

[Mimi Zohar]

On Mon, 2017-11-13 at 09:05 +1100, James Morris wrote:
> Hi Linus,
> 
> Please pull these fixes for the Integrity subsystem.
> 
> (From Mimi)
> 
> "There is a mixture of bug fixes, code cleanup, preparatory code for new 
> functionality and new functionality.
> 
> Commit 26ddabfe96bb "evm: enable EVM when X509 certificate is loaded" 
> enabled EVM without loading a symmetric key, but was limited to defining 
> the x509 certificate pathname at build.  Included in this set of patches 
> is the ability of enabling EVM, without loading the EVM symmetric key, 
> from userspace.  New is the ability to prevent the loading of an EVM 
> symmetric key."

James, thank you for keeping the integrity patches separate, as
requested, and sending the extra pull request. ?This is extra work for
you, but I really appreciate it. ?The pull request seems to have gone
smoothly.

So much of the integrity subsystem is dependent on the other security
subsystems (eg. keys, TPM, LSM hooks). ?Having a common security
testing branch is really helpful. ?It makes collaboration that much
easier.

Thanks!

Mimi

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