From: Mimi Zohar <zohar@linux.ibm.com>
To: Michal Suchanek <msuchanek@suse.de>,
keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-integrity@vger.kernel.org
Cc: kexec@lists.infradead.org, Philipp Rudo <prudo@redhat.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: Re: [PATCH v5 2/6] powerpc/kexec_file: Add KEXEC_SIG support.
Date: Sun, 13 Feb 2022 21:59:57 -0500 [thread overview]
Message-ID: <cff97dbe262919ff709a5ad2c4af6a702cc72a95.camel@linux.ibm.com> (raw)
In-Reply-To: <d95f7c6865bcad5ee37dcbec240e79aa742f5e1d.1641900831.git.msuchanek@suse.de>
Hi Michal,
On Tue, 2022-01-11 at 12:37 +0100, Michal Suchanek wrote:
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index dea74d7717c0..1cde9b6c5987 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -560,6 +560,22 @@ config KEXEC_FILE
> config ARCH_HAS_KEXEC_PURGATORY
> def_bool KEXEC_FILE
>
> +config KEXEC_SIG
> + bool "Verify kernel signature during kexec_file_load() syscall"
> + depends on KEXEC_FILE && MODULE_SIG_FORMAT
> + help
> + This option makes kernel signature verification mandatory for
> + the kexec_file_load() syscall.
When KEXEC_SIG is enabled on other architectures, IMA does not define a
kexec 'appraise' policy rule. Refer to the policy rules in
security/ima/ima_efi.c. Similarly the kexec 'appraise' policy rule in
arch/powerpc/kernel/ima_policy.c should not be defined.
--
thanks,
Mimi
WARNING: multiple messages have this Message-ID (diff)
From: Mimi Zohar <zohar@linux.ibm.com>
To: Michal Suchanek <msuchanek@suse.de>,
keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-integrity@vger.kernel.org
Cc: Nayna <nayna@linux.vnet.ibm.com>,
David Howells <dhowells@redhat.com>,
Paul Mackerras <paulus@samba.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
linux-s390@vger.kernel.org,
Herbert Xu <herbert@gondor.apana.org.au>,
Baoquan He <bhe@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
James Morris <jmorris@namei.org>,
Lakshmi Ramasubramanian <nramas@linux.microsoft.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
"Serge E. Hallyn" <serge@hallyn.com>,
Vasily Gorbik <gor@linux.ibm.com>, Rob Herring <robh@kernel.org>,
Heiko Carstens <hca@linux.ibm.com>,
Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Daniel Axtens <dja@axtens.net>, Philipp Rudo <prudo@redhat.com>,
Frank van der Linden <fllinden@amazon.com>,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>,
Sven Schnelle <svens@linux.ibm.com>,
linux-security-module@vger.kernel.org,
Jessica Yu <jeyu@kernel.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
buendgen@de.ibm.com
Subject: Re: [PATCH v5 2/6] powerpc/kexec_file: Add KEXEC_SIG support.
Date: Sun, 13 Feb 2022 21:59:57 -0500 [thread overview]
Message-ID: <cff97dbe262919ff709a5ad2c4af6a702cc72a95.camel@linux.ibm.com> (raw)
In-Reply-To: <d95f7c6865bcad5ee37dcbec240e79aa742f5e1d.1641900831.git.msuchanek@suse.de>
Hi Michal,
On Tue, 2022-01-11 at 12:37 +0100, Michal Suchanek wrote:
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index dea74d7717c0..1cde9b6c5987 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -560,6 +560,22 @@ config KEXEC_FILE
> config ARCH_HAS_KEXEC_PURGATORY
> def_bool KEXEC_FILE
>
> +config KEXEC_SIG
> + bool "Verify kernel signature during kexec_file_load() syscall"
> + depends on KEXEC_FILE && MODULE_SIG_FORMAT
> + help
> + This option makes kernel signature verification mandatory for
> + the kexec_file_load() syscall.
When KEXEC_SIG is enabled on other architectures, IMA does not define a
kexec 'appraise' policy rule. Refer to the policy rules in
security/ima/ima_efi.c. Similarly the kexec 'appraise' policy rule in
arch/powerpc/kernel/ima_policy.c should not be defined.
--
thanks,
Mimi
WARNING: multiple messages have this Message-ID (diff)
From: Mimi Zohar <zohar@linux.ibm.com>
To: kexec@lists.infradead.org
Subject: [PATCH v5 2/6] powerpc/kexec_file: Add KEXEC_SIG support.
Date: Sun, 13 Feb 2022 21:59:57 -0500 [thread overview]
Message-ID: <cff97dbe262919ff709a5ad2c4af6a702cc72a95.camel@linux.ibm.com> (raw)
In-Reply-To: <d95f7c6865bcad5ee37dcbec240e79aa742f5e1d.1641900831.git.msuchanek@suse.de>
Hi Michal,
On Tue, 2022-01-11 at 12:37 +0100, Michal Suchanek wrote:
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index dea74d7717c0..1cde9b6c5987 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -560,6 +560,22 @@ config KEXEC_FILE
> config ARCH_HAS_KEXEC_PURGATORY
> def_bool KEXEC_FILE
>
> +config KEXEC_SIG
> + bool "Verify kernel signature during kexec_file_load() syscall"
> + depends on KEXEC_FILE && MODULE_SIG_FORMAT
> + help
> + This option makes kernel signature verification mandatory for
> + the kexec_file_load() syscall.
When KEXEC_SIG is enabled on other architectures, IMA does not define a
kexec 'appraise' policy rule. Refer to the policy rules in
security/ima/ima_efi.c. Similarly the kexec 'appraise' policy rule in
arch/powerpc/kernel/ima_policy.c should not be defined.
--
thanks,
Mimi
next prev parent reply other threads:[~2022-02-14 3:01 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 11:37 [PATCH v5 0/6] KEXEC_SIG with appended signature Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` [PATCH v5 1/6] s390/kexec_file: Don't opencode appended signature check Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` [PATCH v5 2/6] powerpc/kexec_file: Add KEXEC_SIG support Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-02-09 4:43 ` Michael Ellerman
2022-02-09 4:43 ` Michael Ellerman
2022-02-09 4:43 ` Michael Ellerman
2022-02-09 6:44 ` Paul Menzel
2022-02-09 6:44 ` Paul Menzel
2022-02-09 6:44 ` Paul Menzel
2022-02-09 12:01 ` Michal Suchánek
2022-02-09 12:01 ` Michal =?unknown-8bit?q?Such=C3=A1nek?=
2022-02-09 12:01 ` Michal Suchánek
2022-02-11 15:31 ` Paul Menzel
2022-02-11 15:31 ` Paul Menzel
2022-02-11 15:31 ` Paul Menzel
2022-02-13 17:50 ` Mimi Zohar
2022-02-13 17:50 ` Mimi Zohar
2022-02-13 17:50 ` Mimi Zohar
2022-02-14 2:59 ` Mimi Zohar [this message]
2022-02-14 2:59 ` Mimi Zohar
2022-02-14 2:59 ` Mimi Zohar
2022-02-14 15:14 ` Mimi Zohar
2022-02-14 15:14 ` Mimi Zohar
2022-02-14 15:14 ` Mimi Zohar
2022-02-14 15:55 ` Michal Suchánek
2022-02-14 15:55 ` Michal =?unknown-8bit?q?Such=C3=A1nek?=
2022-02-14 15:55 ` Michal Suchánek
2022-02-14 17:09 ` Mimi Zohar
2022-02-14 17:09 ` Mimi Zohar
2022-02-14 17:09 ` Mimi Zohar
2022-01-11 11:37 ` [PATCH v5 3/6] kexec_file: Don't opencode appended signature verification Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-25 20:15 ` Luis Chamberlain
2022-01-25 20:15 ` Luis Chamberlain
2022-01-25 20:15 ` Luis Chamberlain
2022-02-03 10:49 ` Michal Suchánek
2022-02-03 10:49 ` Michal =?unknown-8bit?q?Such=C3=A1nek?=
2022-02-03 10:49 ` Michal Suchánek
2022-01-11 11:37 ` [PATCH v5 4/6] module: strip the signature marker in the verification function Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-25 20:23 ` Luis Chamberlain
2022-01-25 20:23 ` Luis Chamberlain
2022-01-25 20:23 ` Luis Chamberlain
2022-01-11 11:37 ` [PATCH v5 5/6] module: Use key_being_used_for for log messages in verify_appended_signature Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-25 20:24 ` Luis Chamberlain
2022-01-25 20:24 ` Luis Chamberlain
2022-01-25 20:24 ` Luis Chamberlain
2022-01-11 11:37 ` [PATCH v5 6/6] module: Move duplicate mod_check_sig users code to mod_parse_sig Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-11 11:37 ` Michal Suchanek
2022-01-25 20:27 ` Luis Chamberlain
2022-01-25 20:27 ` Luis Chamberlain
2022-01-25 20:27 ` Luis Chamberlain
2022-01-25 20:30 ` [PATCH v5 0/6] KEXEC_SIG with appended signature Luis Chamberlain
2022-01-25 20:30 ` Luis Chamberlain
2022-01-25 20:30 ` Luis Chamberlain
2022-02-09 4:46 ` Michael Ellerman
2022-02-09 4:46 ` Michael Ellerman
2022-02-09 4:46 ` Michael Ellerman
2022-02-10 23:30 ` Luis Chamberlain
2022-02-10 23:30 ` Luis Chamberlain
2022-02-10 23:30 ` Luis Chamberlain
2022-02-13 18:53 ` Mimi Zohar
2022-02-13 18:53 ` Mimi Zohar
2022-02-13 18:53 ` Mimi Zohar
2022-02-13 20:27 ` Mimi Zohar
2022-02-13 20:27 ` Mimi Zohar
2022-02-13 20:27 ` Mimi Zohar
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