BMC/Intel-BMC/linux.git/security/integrity/ima/Kconfig, branch dev-5.3

Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

2019-07-09T03:28:59+00:00

Pull integrity updates from Mimi Zohar: "Bug fixes, code clean up, and new features: - IMA policy rules can be defined in terms of LSM labels, making the IMA policy dependent on LSM policy label changes, in particular LSM label deletions. The new environment, in which IMA-appraisal is being used, frequently updates the LSM policy and permits LSM label deletions. - Prevent an mmap'ed shared file opened for write from also being mmap'ed execute. In the long term, making this and other similar changes at the VFS layer would be preferable. - The IMA per policy rule template format support is needed for a couple of new/proposed features (eg. kexec boot command line measurement, appended signatures, and VFS provided file hashes). - Other than the "boot-aggregate" record in the IMA measuremeent list, all other measurements are of file data. Measuring and storing the kexec boot command line in the IMA measurement list is the first buffer based measurement included in the measurement list" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: integrity: Introduce struct evm_xattr ima: Update MAX_TEMPLATE_NAME_LEN to fit largest reasonable definition KEXEC: Call ima_kexec_cmdline to measure the boot command line args IMA: Define a new template field buf IMA: Define a new hook to measure the kexec boot command line arguments IMA: support for per policy rule template formats integrity: Fix __integrity_init_keyring() section mismatch ima: Use designated initializers for struct ima_event_data ima: use the lsm policy update notifier LSM: switch to blocking policy update notifiers x86/ima: fix the Kconfig dependency for IMA_ARCH_POLICY ima: Make arch_policy_entry static ima: prevent a file already mmap'ed write to be mmap'ed execute x86/ima: check EFI SetupMode too

x86/ima: fix the Kconfig dependency for IMA_ARCH_POLICY

2019-06-14T12:53:58+00:00

If enabled, ima arch specific policies always adds the measurements rules, this makes it dependent on CONFIG_IMA. CONFIG_IMA_APPRAISE implicitly takes care of this, however it is needed explicitly for CONFIG_KEXEC_VERIFY_SIG. This patch adds the CONFIG_IMA dependency in combination with CONFIG_KEXEC_VERIFY_SIG for CONFIG_IMA_ARCH_POLICY Fixes: d958083a8f640 (x86/ima: define arch_get_ima_policy() for x86) Signed-off-by: Nayna Jain Cc: Eric Biederman Cc: Dave Young Signed-off-by: Mimi Zohar

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

x86/ima: define arch_get_ima_policy() for x86

2018-12-11T12:13:41+00:00

On x86, there are two methods of verifying a kexec'ed kernel image signature being loaded via the kexec_file_load syscall - an architecture specific implementaton or a IMA KEXEC_KERNEL_CHECK appraisal rule. Neither of these methods verify the kexec'ed kernel image signature being loaded via the kexec_load syscall. Secure boot enabled systems require kexec images to be signed. Therefore, this patch loads an IMA KEXEC_KERNEL_CHECK policy rule on secure boot enabled systems not configured with CONFIG_KEXEC_VERIFY_SIG enabled. When IMA_APPRAISE_BOOTPARAM is configured, different IMA appraise modes (eg. fix, log) can be specified on the boot command line, allowing unsigned or invalidly signed kernel images to be kexec'ed. This patch permits enabling IMA_APPRAISE_BOOTPARAM or IMA_ARCH_POLICY, but not both. Signed-off-by: Eric Richter Signed-off-by: Nayna Jain Cc: David Howells Cc: Eric Biederman Cc: Peter Jones Cc: Vivek Goyal Cc: Dave Young Signed-off-by: Mimi Zohar

ima: Do not audit if CONFIG_INTEGRITY_AUDIT is not set

2018-07-18T11:27:22+00:00

If Integrity is not auditing, IMA shouldn't audit, either. Signed-off-by: Stefan Berger Acked-by: Paul Moore Signed-off-by: Mimi Zohar

ima: add build time policy

2018-07-16T19:31:57+00:00

IMA by default does not measure, appraise or audit files, but can be enabled at runtime by specifying a builtin policy on the boot command line or by loading a custom policy. This patch defines a build time policy, which verifies kernel modules, firmware, kexec image, and/or the IMA policy signatures. This build time policy is automatically enabled at runtime and persists after loading a custom policy. Signed-off-by: Mimi Zohar Reviewed-by: Kees Cook Signed-off-by: James Morris

ima: Fix Kconfig to select TPM 2.0 CRB interface

2018-03-25T11:24:31+00:00

TPM_CRB driver provides TPM CRB 2.0 support. If it is built as a module, the TPM chip is registered after IMA init. tpm_pcr_read() in IMA fails and displays the following message even though eventually there is a TPM chip on the system. ima: No TPM chip found, activating TPM-bypass! (rc=-19) Fix IMA Kconfig to select TPM_CRB so TPM_CRB driver is built in the kernel and initializes before IMA. Signed-off-by: Jiandi An Signed-off-by: Mimi Zohar

IMA: Correct Kconfig dependencies for hash selection

2017-06-21T18:37:12+00:00

IMA uses the hash algorithm too early to be able to use a module. Require the selected hash algorithm to be built-in. Signed-off-by: Ben Hutchings Signed-off-by: Mimi Zohar

ima: define Kconfig IMA_APPRAISE_BOOTPARAM option

2017-06-21T18:37:12+00:00

Permit enabling the different "ima_appraise=" modes (eg. log, fix) from the boot command line. Signed-off-by: Mimi Zohar

ima: maintain memory size needed for serializing the measurement list

2016-12-20T17:48:44+00:00

In preparation for serializing the binary_runtime_measurements, this patch maintains the amount of memory required. Link: http://lkml.kernel.org/r/1480554346-29071-5-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar Acked-by: Dmitry Kasatkin Cc: Thiago Jung Bauermann Cc: "Eric W. Biederman" Cc: Andreas Steffen Cc: Josh Sklar Cc: Dave Young Cc: Vivek Goyal Cc: Baoquan He Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Stewart Smith Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds