[GIT PULL] AppArmor updates for 6.7

[John Johansen <john.johansen@canonical.com>]

Hi Linus,

Please pull the following apparmor for patches for the 6.7 merge
window.

This PR adds initial support for mediating io_uring and userns
creation.  Adds a new restriction that tightens the use of
change_profile, and a couple of optimizations to reduce performance
bottle necks that have been found when retrieving the current task's
secid and allocating work buffers.

The majority of the patch set continues cleaning up and simplifying
the code (fixing comments, removing now dead functions, and macros
etc). Finally there are 4 bug fixes, with the regression fix having
had a couple months of testing.

These patches have been in linux-next and been tested while in there,
and have also had a merge and regression test against your current
tree as of a day ago.

thanks
- john


The following changes since commit 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5:

   Linux 6.5-rc1 (2023-07-09 13:53:13 -0700)

are available in the Git repository at:

   git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor tags/apparmor-pr-2023-11-03

for you to fetch changes up to 6cede10161be00d129a24e8b84c2674785a32cf8:

   apparmor: Fix some kernel-doc comments (2023-10-23 00:26:27 -0700)

----------------------------------------------------------------
+ Features
   - optimize retrieving current task secid
   - add base io_uring mediation
   - add base userns mediation
   - improve buffer allocation
   - allow restricting unprivilege change_profile

+ Cleanups
   - Fix kernel doc comments
   - remove unused declarations
   - remove unused functions
   - remove unneeded #ifdef
   - remove unused macros
   - mark fns static
   - cleanup fn with unused return values
   - cleanup audit data
   - pass cred through to audit data
   - refcount the pdb instead of using duplicates
   - make SK_CTX macro an inline fn
   - some comment cleanups

+ Bug fixes
   - fix regression in mount mediation
   - fix invalid refenece
   - use passed in gfp flags
   - advertise avaiability of extended perms and disconnected.path

----------------------------------------------------------------
Arnd Bergmann (1):
       apparmor: mark new functions static

Dan Carpenter (1):
       apparmor: use passed in gfp flags in aa_alloc_null()

GONG, Ruiqi (2):
       apparmor: remove unused macro
       apparmor: remove unused PROF_* macros

Gaosheng Cui (11):
       apparmor: Fix kernel-doc warnings in apparmor/audit.c
       apparmor: Fix kernel-doc warnings in apparmor/capability.c
       apparmor: Fix kernel-doc warnings in apparmor/domain.c
       apparmor: Fix kernel-doc warnings in apparmor/file.c
       apparmor: Fix kernel-doc warnings in apparmor/label.c
       apparmor: Fix kernel-doc warnings in apparmor/lib.c
       apparmor: Fix kernel-doc warnings in apparmor/match.c
       apparmor: Fix kernel-doc warnings in apparmor/resource.c
       apparmor: Fix kernel-doc warnings in apparmor/policy_unpack.c
       apparmor: Fix kernel-doc warnings in apparmor/policy_compat.c
       apparmor: Fix kernel-doc warnings in apparmor/policy.c

Georgia Garcia (2):
       apparmor: fix invalid reference on profile->disconnected
       apparmor: add io_uring mediation

John Johansen (13):
       apparmor: advertise availability of exended perms
       apparmor: fixup return comments for kernel doc cleanups by Gaosheng Cui
       apparmor: rename SK_CTX() to aa_sock and make it an inline fn
       apparmor: combine common_audit_data and apparmor_audit_data
       apparmor: rename audit_data->label to audit_data->subj_label
       apparmor: pass cred through to audit info.
       apparmor: provide separate audit messages for file and policy checks
       apparmor: refcount the pdb
       apparmor: advertise disconnected.path is available
       apparmor: allow restricting unprivileged change_profile
       apparmor: add user namespace creation mediation
       apparmor: cache buffers on percpu list if there is lock contention
       apparmor: Fix regression in mount mediation

Quanfa Fu (1):
       apparmor: make aa_set_current_onexec return void

Vinicius Costa Gomes (1):
       apparmor: Optimize retrieving current task secid

Xiu Jianfeng (4):
       apparmor: cleanup unused declarations in policy.h
       apparmor: cleanup unused functions in file.h
       apparmor: remove unneeded #ifdef in decompress_zstd()
       apparmor: remove unused functions in policy_ns.c/.h

Yang Li (3):
       apparmor: Fix some kernel-doc comments
       apparmor: Fix one kernel-doc comment
       apparmor: Fix some kernel-doc comments

  security/apparmor/apparmorfs.c         |  49 ++--
  security/apparmor/audit.c              |  75 +++---
  security/apparmor/capability.c         |  33 +--
  security/apparmor/domain.c             | 193 +++++++++------
  security/apparmor/file.c               | 217 ++++++++++-------
  security/apparmor/include/apparmor.h   |   3 +-
  security/apparmor/include/audit.h      |  44 ++--
  security/apparmor/include/capability.h |   3 +-
  security/apparmor/include/file.h       |  54 +----
  security/apparmor/include/ipc.h        |   4 +-
  security/apparmor/include/lib.h        |   2 +
  security/apparmor/include/match.h      |   6 -
  security/apparmor/include/mount.h      |  26 ++-
  security/apparmor/include/net.h        |  25 +-
  security/apparmor/include/perms.h      |   7 +-
  security/apparmor/include/policy.h     |  68 ++++--
  security/apparmor/include/policy_ns.h  |  14 --
  security/apparmor/include/resource.h   |   3 +-
  security/apparmor/include/task.h       |  11 +-
  security/apparmor/ipc.c                |  53 +++--
  security/apparmor/label.c              |  46 ++--
  security/apparmor/lib.c                |  54 ++---
  security/apparmor/lsm.c                | 414 ++++++++++++++++++++++++++++-----
  security/apparmor/match.c              |  48 +---
  security/apparmor/mount.c              | 186 +++++++++------
  security/apparmor/net.c                |  65 +++---
  security/apparmor/policy.c             | 133 +++++++----
  security/apparmor/policy_compat.c      |   1 +
  security/apparmor/policy_ns.c          |  37 ---
  security/apparmor/policy_unpack.c      | 152 ++++++------
  security/apparmor/resource.c           |  54 +++--
  security/apparmor/task.c               | 104 ++++++---
  32 files changed, 1336 insertions(+), 848 deletions(-)