From: Kees Cook <keescook@chromium.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kees Cook <keescook@chromium.org>,
Scott Branden <scott.branden@broadcom.com>,
Mimi Zohar <zohar@linux.ibm.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Takashi Iwai <tiwai@suse.de>, Jessica Yu <jeyu@kernel.org>,
SeongJae Park <sjpark@amazon.de>, KP Singh <kpsingh@chromium.org>,
linux-efi@vger.kernel.org, linux-security-module@vger.kernel.org,
linux-integrity@vger.kernel.org, selinux@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 00/16] Introduce partial kernel_read_file() support
Date: Fri, 2 Oct 2020 10:38:12 -0700 [thread overview]
Message-ID: <20201002173828.2099543-1-keescook@chromium.org> (raw)
v5:
- add more reviews (thank you!)
- add "description" string to post_load_data API (mimi)
- drop bug fix that got taken already
v4: https://lore.kernel.org/lkml/20200729175845.1745471-1-keescook@chromium.org/
v3: https://lore.kernel.org/lkml/20200724213640.389191-1-keescook@chromium.org/
v2: lost to the ether
v1: https://lore.kernel.org/lkml/20200717174309.1164575-1-keescook@chromium.org/
Hi,
Here's my tree for adding partial read support in kernel_read_file(),
which fixes a number of issues along the way. It's got Scott's firmware
and IMA patches ported and everything tests cleanly for me (even with
CONFIG_IMA_APPRAISE=y), and now appears to pass 0day. :)
The intention is for this to go via Greg's tree since Scott's driver
code will depend on it.
Thanks,
-Kees
Kees Cook (12):
fs/kernel_read_file: Remove FIRMWARE_PREALLOC_BUFFER enum
fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum
fs/kernel_read_file: Split into separate source file
fs/kernel_read_file: Remove redundant size argument
fs/kernel_read_file: Switch buffer size arg to size_t
fs/kernel_read_file: Add file_size output argument
LSM: Introduce kernel_post_load_data() hook
firmware_loader: Use security_post_load_data()
module: Call security_kernel_post_load_data()
LSM: Add "contents" flag to kernel_read_file hook
fs/kernel_file_read: Add "offset" arg for partial reads
firmware: Store opt_flags in fw_priv
Scott Branden (4):
fs/kernel_read_file: Split into separate include file
IMA: Add support for file reads without contents
firmware: Add request_partial_firmware_into_buf()
test_firmware: Test partial read support
drivers/base/firmware_loader/fallback.c | 19 +-
drivers/base/firmware_loader/fallback.h | 5 +-
.../base/firmware_loader/fallback_platform.c | 12 +-
drivers/base/firmware_loader/firmware.h | 7 +-
drivers/base/firmware_loader/main.c | 135 ++++++++++---
fs/Makefile | 3 +-
fs/exec.c | 132 +-----------
fs/kernel_read_file.c | 189 ++++++++++++++++++
include/linux/firmware.h | 12 ++
include/linux/fs.h | 39 ----
include/linux/ima.h | 20 +-
include/linux/kernel_read_file.h | 55 +++++
include/linux/lsm_hook_defs.h | 6 +-
include/linux/lsm_hooks.h | 13 ++
include/linux/security.h | 21 +-
kernel/kexec.c | 2 +-
kernel/kexec_file.c | 19 +-
kernel/module.c | 24 ++-
lib/test_firmware.c | 154 ++++++++++++--
security/integrity/digsig.c | 8 +-
security/integrity/ima/ima_fs.c | 10 +-
security/integrity/ima/ima_main.c | 73 +++++--
security/integrity/ima/ima_policy.c | 1 +
security/loadpin/loadpin.c | 17 +-
security/security.c | 28 ++-
security/selinux/hooks.c | 8 +-
.../selftests/firmware/fw_filesystem.sh | 91 +++++++++
27 files changed, 807 insertions(+), 296 deletions(-)
create mode 100644 fs/kernel_read_file.c
create mode 100644 include/linux/kernel_read_file.h
--
2.25.1
next reply other threads:[~2020-10-02 17:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-02 17:38 Kees Cook [this message]
2020-10-02 17:38 ` [PATCH v5 01/16] fs/kernel_read_file: Remove FIRMWARE_PREALLOC_BUFFER enum Kees Cook
2020-10-06 17:17 ` James Morris
2020-10-02 17:38 ` [PATCH v5 02/16] fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum Kees Cook
2020-10-02 17:38 ` [PATCH v5 03/16] fs/kernel_read_file: Split into separate include file Kees Cook
2020-10-02 17:38 ` [PATCH v5 04/16] fs/kernel_read_file: Split into separate source file Kees Cook
2020-10-06 17:18 ` James Morris
2020-10-02 17:38 ` [PATCH v5 05/16] fs/kernel_read_file: Remove redundant size argument Kees Cook
2020-10-02 17:38 ` [PATCH v5 06/16] fs/kernel_read_file: Switch buffer size arg to size_t Kees Cook
2020-10-02 17:38 ` [PATCH v5 07/16] fs/kernel_read_file: Add file_size output argument Kees Cook
2020-10-02 17:38 ` [PATCH v5 08/16] LSM: Introduce kernel_post_load_data() hook Kees Cook
2020-10-02 17:38 ` [PATCH v5 09/16] firmware_loader: Use security_post_load_data() Kees Cook
2020-10-02 17:38 ` [PATCH v5 10/16] module: Call security_kernel_post_load_data() Kees Cook
2020-10-06 17:19 ` James Morris
2020-10-02 17:38 ` [PATCH v5 11/16] LSM: Add "contents" flag to kernel_read_file hook Kees Cook
2020-10-06 17:19 ` James Morris
2020-10-02 17:38 ` [PATCH v5 12/16] IMA: Add support for file reads without contents Kees Cook
2020-10-02 17:38 ` [PATCH v5 13/16] fs/kernel_file_read: Add "offset" arg for partial reads Kees Cook
2020-10-02 17:38 ` [PATCH v5 14/16] firmware: Store opt_flags in fw_priv Kees Cook
2020-10-02 17:38 ` [PATCH v5 15/16] firmware: Add request_partial_firmware_into_buf() Kees Cook
2020-10-02 17:38 ` [PATCH v5 16/16] test_firmware: Test partial read support Kees Cook
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