Messages in this thread | | | From | Mickaël Salaün <> | Subject | [GIT PULL] Landlock changes for v5.19 | Date | Mon, 23 May 2022 18:12:45 +0200 |
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Hi Linus,
Please pull these Landlock changes for v5.19-rc1 . These 30 commits have been successfully tested in the latest linux-next releases for several weeks, and with syzkaller: https://github.com/google/syzkaller/pull/3133
Regards, Mickaël
-- The following changes since commit 672c0c5173427e6b3e2a9bbb7be51ceeec78093a:
Linux 5.18-rc5 (2022-05-01 13:57:58 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git tags/landlock-5.19-rc1
for you to fetch changes up to 5e469829baa1b1320e843adf3631edef1d6d2cf2:
landlock: Explain how to support Landlock (2022-05-23 13:28:03 +0200)
---------------------------------------------------------------- Landlock updates for v5.19-rc1
Important changes: * improve the path_rename LSM hook implementations for RENAME_EXCHANGE; * fix a too-restrictive filesystem control for a rare corner case; * set the nested sandbox limitation to 16 layers; * add a new LANDLOCK_ACCESS_FS_REFER access right to properly handle file reparenting (i.e. full rename and link support); * add new tests and documentation; * format code with clang-format to make it easier to maintain and contribute.
Related patch series: * [PATCH v1 0/7] Landlock: Clean up coding style with clang-format https://lore.kernel.org/r/20220506160513.523257-1-mic@digikod.net * [PATCH v2 00/10] Minor Landlock fixes and new tests https://lore.kernel.org/r/20220506160820.524344-1-mic@digikod.net * [PATCH v3 00/12] Landlock: file linking and renaming support https://lore.kernel.org/r/20220506161102.525323-1-mic@digikod.net * [PATCH v2] landlock: Explain how to support Landlock https://lore.kernel.org/r/20220513112743.156414-1-mic@digikod.net
---------------------------------------------------------------- Mickaël Salaün (30): landlock: Add clang-format exceptions landlock: Format with clang-format selftests/landlock: Add clang-format exceptions selftests/landlock: Normalize array assignment selftests/landlock: Format with clang-format samples/landlock: Add clang-format exceptions samples/landlock: Format with clang-format landlock: Fix landlock_add_rule(2) documentation selftests/landlock: Make tests build with old libc selftests/landlock: Extend tests for minimal valid attribute size selftests/landlock: Add tests for unknown access rights selftests/landlock: Extend access right tests to directories selftests/landlock: Fully test file rename with "remove" access selftests/landlock: Add tests for O_PATH landlock: Change landlock_add_rule(2) argument check ordering landlock: Change landlock_restrict_self(2) check ordering selftests/landlock: Test landlock_create_ruleset(2) argument check ordering landlock: Define access_mask_t to enforce a consistent access mask size landlock: Reduce the maximum number of layers to 16 landlock: Create find_rule() from unmask_layers() landlock: Fix same-layer rule unions landlock: Move filesystem helpers and add a new one LSM: Remove double path_rename hook calls for RENAME_EXCHANGE landlock: Add support for file reparenting with LANDLOCK_ACCESS_FS_REFER selftests/landlock: Add 11 new test suites dedicated to file reparenting samples/landlock: Add support for file reparenting landlock: Document LANDLOCK_ACCESS_FS_REFER and ABI versioning landlock: Document good practices about filesystem policies landlock: Add design choices documentation for filesystem access rights landlock: Explain how to support Landlock
Documentation/security/landlock.rst | 17 +- Documentation/userspace-api/landlock.rst | 180 ++- include/linux/lsm_hook_defs.h | 2 +- include/linux/lsm_hooks.h | 1 + include/uapi/linux/landlock.h | 36 +- samples/landlock/sandboxer.c | 132 +- security/apparmor/lsm.c | 30 +- security/landlock/cred.c | 4 +- security/landlock/cred.h | 8 +- security/landlock/fs.c | 815 +++++++++--- security/landlock/fs.h | 11 +- security/landlock/limits.h | 10 +- security/landlock/object.c | 6 +- security/landlock/object.h | 6 +- security/landlock/ptrace.c | 10 +- security/landlock/ruleset.c | 84 +- security/landlock/ruleset.h | 35 +- security/landlock/syscalls.c | 95 +- security/security.c | 9 +- security/tomoyo/tomoyo.c | 11 +- tools/testing/selftests/landlock/base_test.c | 179 ++- tools/testing/selftests/landlock/common.h | 66 +- tools/testing/selftests/landlock/fs_test.c | 1619 +++++++++++++++++++----- tools/testing/selftests/landlock/ptrace_test.c | 40 +- 24 files changed, 2646 insertions(+), 760 deletions(-)
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