From: Michal Suchanek <msuchanek@suse.de>
To: keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-integrity@vger.kernel.org
Cc: Michal Suchanek <msuchanek@suse.de>,
kexec@lists.infradead.org, Philipp Rudo <prudo@redhat.com>,
Mimi Zohar <zohar@linux.ibm.com>,
Nayna <nayna@linux.vnet.ibm.com>, Rob Herring <robh@kernel.org>,
linux-s390@vger.kernel.org, Vasily Gorbik <gor@linux.ibm.com>,
Lakshmi Ramasubramanian <nramas@linux.microsoft.com>,
Heiko Carstens <hca@linux.ibm.com>, Jessica Yu <jeyu@kernel.org>,
linux-kernel@vger.kernel.org, David Howells <dhowells@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Hari Bathini <hbathini@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
linuxppc-dev@lists.ozlabs.org,
Frank van der Linden <fllinden@amazon.com>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Daniel Axtens <dja@axtens.net>,
buendgen@de.ibm.com, Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
Sven Schnelle <svens@linux.ibm.com>, Baoquan He <bhe@redhat.com>,
linux-security-module@vger.kernel.org
Subject: [PATCH v3 0/6] KEXEC_SIG with appended signature
Date: Fri, 7 Jan 2022 12:53:44 +0100 [thread overview]
Message-ID: <cover.1641555875.git.msuchanek@suse.de> (raw)
Hello,
This is a refresh of the KEXEC_SIG series.
This adds KEXEC_SIG support on powerpc and deduplicates the code dealing
with appended signatures in the kernel.
powerpc supports IMA_KEXEC but that's an exception rather than the norm.
On the other hand, KEXEC_SIG is portable across platforms.
For distributions to have uniform security features across platforms one
option should be used on all platforms.
Thanks
Michal
Previous revision: https://lore.kernel.org/linuxppc-dev/cover.1637862358.git.msuchanek@suse.de/
Patched kernel tree: https://github.com/hramrach/kernel/tree/kexec_sig
Michal Suchanek (6):
s390/kexec_file: Don't opencode appended signature check.
powerpc/kexec_file: Add KEXEC_SIG support.
kexec_file: Don't opencode appended signature verification.
module: strip the signature marker in the verification function.
module: Use key_being_used_for for log messages in
verify_appended_signature
module: Move duplicate mod_check_sig users code to mod_parse_sig
arch/powerpc/Kconfig | 16 +++++++
arch/powerpc/kexec/elf_64.c | 14 ++++++
arch/s390/Kconfig | 2 +-
arch/s390/kernel/machine_kexec_file.c | 43 ++----------------
crypto/asymmetric_keys/asymmetric_type.c | 1 +
include/linux/module_signature.h | 1 +
include/linux/verification.h | 4 ++
kernel/module-internal.h | 2 -
kernel/module.c | 12 +++--
kernel/module_signature.c | 56 +++++++++++++++++++++++-
kernel/module_signing.c | 33 +++++++-------
security/integrity/ima/ima_modsig.c | 22 ++--------
12 files changed, 119 insertions(+), 87 deletions(-)
--
2.31.1
next reply other threads:[~2022-01-07 11:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-07 11:53 Michal Suchanek [this message]
2022-01-07 11:53 ` [PATCH v3 1/6] s390/kexec_file: Don't opencode appended signature check Michal Suchanek
2022-01-07 11:53 ` [PATCH v3 2/6] powerpc/kexec_file: Add KEXEC_SIG support Michal Suchanek
2022-01-07 11:53 ` [PATCH v3 3/6] kexec_file: Don't opencode appended signature verification Michal Suchanek
2022-01-07 18:36 ` kernel test robot
2022-01-08 14:58 ` kernel test robot
2022-01-07 11:53 ` [PATCH v3 4/6] module: strip the signature marker in the verification function Michal Suchanek
2022-01-07 11:53 ` [PATCH v3 5/6] module: Use key_being_used_for for log messages in verify_appended_signature Michal Suchanek
2022-01-07 11:53 ` [PATCH v3 6/6] module: Move duplicate mod_check_sig users code to mod_parse_sig Michal Suchanek
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