linux-kernel - [PATCH v6 0/7] capabilities: Introduce CAP_CHECKPOINT

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Date:   Sun, 19 Jul 2020 12:04:10 +0200
From:   Adrian Reber <areber@...hat.com>
To:     Christian Brauner <christian.brauner@...ntu.com>,
        Eric Biederman <ebiederm@...ssion.com>,
        Pavel Emelyanov <ovzxemul@...il.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Andrei Vagin <avagin@...il.com>,
        Nicolas Viennot <Nicolas.Viennot@...sigma.com>,
        Michał Cłapiński 
        <mclapinski@...gle.com>, Kamil Yurtsever <kyurtsever@...gle.com>,
        Dirk Petersen <dipeit@...il.com>,
        Christine Flood <chf@...hat.com>,
        Casey Schaufler <casey@...aufler-ca.com>
Cc:     Mike Rapoport <rppt@...ux.ibm.com>,
        Radostin Stoyanov <rstoyanov1@...il.com>,
        Adrian Reber <areber@...hat.com>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Serge Hallyn <serge@...lyn.com>,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Sargun Dhillon <sargun@...gun.me>,
        Arnd Bergmann <arnd@...db.de>,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, selinux@...r.kernel.org,
        Eric Paris <eparis@...isplace.org>,
        Jann Horn <jannh@...gle.com>, linux-fsdevel@...r.kernel.org
Subject: [PATCH v6 0/7] capabilities: Introduce CAP_CHECKPOINT_RESTORE

This is v6 of the 'Introduce CAP_CHECKPOINT_RESTORE' patchset. The
changes to v5 are:

 * split patch dealing with /proc/self/exe into two patches:
   * first patch to enable changing it with CAP_CHECKPOINT_RESTORE
     and detailed history in the commit message
   * second patch changes -EINVAL to -EPERM
 * use kselftest_harness.h infrastructure for test
 * replace if (!capable(CAP_SYS_ADMIN) || !capable(CAP_CHECKPOINT_RESTORE))
   with if (!checkpoint_restore_ns_capable(&init_user_ns))

Adrian Reber (5):
  capabilities: Introduce CAP_CHECKPOINT_RESTORE
  pid: use checkpoint_restore_ns_capable() for set_tid
  pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
  proc: allow access in init userns for map_files with
    CAP_CHECKPOINT_RESTORE
  selftests: add clone3() CAP_CHECKPOINT_RESTORE test

Nicolas Viennot (2):
  prctl: Allow local CAP_CHECKPOINT_RESTORE to change /proc/self/exe
  prctl: exe link permission error changed from -EINVAL to -EPERM

 fs/proc/base.c                                |   8 +-
 include/linux/capability.h                    |   6 +
 include/uapi/linux/capability.h               |   9 +-
 kernel/pid.c                                  |   2 +-
 kernel/pid_namespace.c                        |   2 +-
 kernel/sys.c                                  |  13 +-
 security/selinux/include/classmap.h           |   5 +-
 tools/testing/selftests/clone3/.gitignore     |   1 +
 tools/testing/selftests/clone3/Makefile       |   4 +-
 .../clone3/clone3_cap_checkpoint_restore.c    | 177 ++++++++++++++++++
 10 files changed, 212 insertions(+), 15 deletions(-)
 create mode 100644 tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c

base-commit: d31958b30ea3b7b6e522d6bf449427748ad45822
-- 
2.26.2