| Message ID | 1544795552.3879.7.camel@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [GIT,PULL] linux-integrity patches for Linux 4.21 | expand |
On Fri, 14 Dec 2018, Mimi Zohar wrote: > The following changes since commit 26b76320a8a550472bbb8f42257df83fcb8d8df6: > > Merge tag 'v4.20-rc2' into next-general (2018-11-12 09:07:41 -0800) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity > Pulled to next-integrity and next-testing. Also, please ask me to sync to an updated -rc version if you need a patch in there, rather than including it yourself.
On Tue, 2018-12-18 at 06:28 +1100, James Morris wrote: > On Fri, 14 Dec 2018, Mimi Zohar wrote: > > > The following changes since commit 26b76320a8a550472bbb8f42257df83fcb8d8df6: > > > > Merge tag 'v4.20-rc2' into next-general (2018-11-12 09:07:41 -0800) > > > > are available in the git repository at: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity > > > > Pulled to next-integrity and next-testing. > > Also, please ask me to sync to an updated -rc version if you need a patch > in there, rather than including it yourself. Thanks, will do! Mimi
Hi James, In Linux 4.19, a new LSM hook named security_kernel_load_data was upstreamed, allowing LSMs and IMA to prevent the kexec_load syscall. Different signature verification methods exist for verifying the kexec'ed kernel image. This pull request adds additional support in IMA to prevent loading unsigned kernel images via the kexec_load syscall, independently of the IMA policy rules, based on the runtime "secure boot" flag. An initial IMA kselftest is included. In addition, this pull request defines a new, separate keyring named ".platform" for storing the preboot/firmware keys needed for verifying the kexec'ed kernel image's signature and includes the associated IMA kexec usage of the ".platform" keyring. (David Howell's and Josh Boyer's patches for reading the preboot/firmware keys, which were previously posted for a different use case scenario, are included here.) Mimi The following changes since commit 26b76320a8a550472bbb8f42257df83fcb8d8df6: Merge tag 'v4.20-rc2' into next-general (2018-11-12 09:07:41 -0800) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity for you to fetch changes up to eed9de3b4f47114f440980203ca27c5fab70f529: ima: Use inode_is_open_for_write (2018-12-12 22:09:34 -0500) ---------------------------------------------------------------- Dave Howells (2): efi: Add EFI signature data types efi: Add an EFI signature blob parser Eric Richter (1): x86/ima: define arch_get_ima_policy() for x86 Josh Boyer (2): efi: Import certificates from UEFI Secure Boot efi: Allow the "db" UEFI variable to be suppressed Mimi Zohar (4): integrity: support new struct public_key_signature encoding field x86/ima: retry detecting secure boot mode ima: don't measure/appraise files on efivarfs selftests/ima: kexec_load syscall test Nayna Jain (7): x86/ima: define arch_ima_get_secureboot ima: prevent kexec_load syscall based on runtime secureboot flag ima: refactor ima_init_policy() ima: add support for arch specific policies integrity: Define a trusted platform keyring integrity: Load certs to the platform keyring ima: Support platform keyring for kernel appraisal Nikolay Borisov (1): ima: Use inode_is_open_for_write Stefan Berger (1): docs: Extend trusted keys documentation for TPM 2.0 Documentation/security/keys/trusted-encrypted.rst | 31 +++- arch/x86/kernel/Makefile | 4 + arch/x86/kernel/ima_arch.c | 75 ++++++++ include/linux/efi.h | 34 ++++ include/linux/ima.h | 15 ++ security/integrity/Kconfig | 11 ++ security/integrity/Makefile | 5 + security/integrity/digsig.c | 110 ++++++++---- security/integrity/digsig_asymmetric.c | 1 + security/integrity/ima/Kconfig | 10 +- security/integrity/ima/ima_appraise.c | 14 +- security/integrity/ima/ima_main.c | 21 ++- security/integrity/ima/ima_policy.c | 171 +++++++++++++----- security/integrity/integrity.h | 23 ++- security/integrity/platform_certs/efi_parser.c | 108 ++++++++++++ security/integrity/platform_certs/load_uefi.c | 194 +++++++++++++++++++++ .../integrity/platform_certs/platform_keyring.c | 58 ++++++ tools/testing/selftests/Makefile | 1 + tools/testing/selftests/ima/Makefile | 11 ++ tools/testing/selftests/ima/config | 4 + tools/testing/selftests/ima/test_kexec_load.sh | 54 ++++++ 21 files changed, 863 insertions(+), 92 deletions(-) create mode 100644 arch/x86/kernel/ima_arch.c create mode 100644 security/integrity/platform_certs/efi_parser.c create mode 100644 security/integrity/platform_certs/load_uefi.c create mode 100644 security/integrity/platform_certs/platform_keyring.c create mode 100644 tools/testing/selftests/ima/Makefile create mode 100644 tools/testing/selftests/ima/config create mode 100755 tools/testing/selftests/ima/test_kexec_load.sh