From: Michael Ellerman <mpe@ellerman.id.au>
To: Luis Chamberlain <mcgrof@kernel.org>,
Michal Suchanek <msuchanek@suse.de>,
David Howells <dhowells@redhat.com>,
Aaron Tomlin <atomlin@redhat.com>
Cc: keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-integrity@vger.kernel.org, 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>,
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,
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 0/6] KEXEC_SIG with appended signature
Date: Wed, 09 Feb 2022 15:46:05 +1100 [thread overview]
Message-ID: <87pmnwlkaa.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <YfBd/EDGUx9UIHcb@bombadil.infradead.org>
Luis Chamberlain <mcgrof@kernel.org> writes:
> On Tue, Jan 11, 2022 at 12:37:42PM +0100, Michal Suchanek wrote:
>> 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
>
> What tree should this go through? I'd prefer if over through modules
> tree as it can give a chance for Aaron Tomlin to work with this for his
> code refactoring of kernel/module*.c to kernel/module/
Yeah that's fine by me, the arch changes are pretty minimal and unlikely
to conflict much.
cheers
next prev parent reply other threads:[~2022-02-09 5:09 UTC|newest]
Thread overview: 26+ 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 ` [PATCH v5 1/6] s390/kexec_file: Don't opencode appended signature check Michal Suchanek
2022-01-11 11:37 ` [PATCH v5 2/6] powerpc/kexec_file: Add KEXEC_SIG support Michal Suchanek
2022-02-09 4:43 ` Michael Ellerman
2022-02-09 6:44 ` Paul Menzel
2022-02-09 12:01 ` Michal Suchánek
2022-02-11 15:31 ` Paul Menzel
2022-02-13 17:50 ` Mimi Zohar
2022-02-14 2:59 ` Mimi Zohar
2022-02-14 15:14 ` Mimi Zohar
2022-02-14 15:55 ` Michal Suchánek
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
2022-01-25 20:15 ` Luis Chamberlain
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
2022-01-25 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
2022-01-25 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
2022-01-25 20:27 ` Luis Chamberlain
2022-01-25 20:30 ` [PATCH v5 0/6] KEXEC_SIG with appended signature Luis Chamberlain
2022-02-09 4:46 ` Michael Ellerman [this message]
2022-02-10 23:30 ` Luis Chamberlain
2022-02-13 18:53 ` Mimi Zohar
2022-02-13 20:27 ` Mimi Zohar
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