Re: [PATCH v2 0/6] KEXEC_SIG with appended signature

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On Thu, Nov 25, 2021 at 07:02:38PM +0100, Michal Suchanek wrote:
> Hello,
> 
> This is resend of the KEXEC_SIG patchset.
> 
> The first patch is new because it'a a cleanup that does not require any
> change to the module verification code.
> 
> The second patch is the only one that is intended to change any
> functionality.
> 
> The rest only deduplicates code but I did not receive any review on that
> part so I don't know if it's desirable as implemented.
> 
> The first two patches can be applied separately without the rest.
> 
> Thanks
> 
> Michal
> 
> 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                     | 11 +++++
>  arch/powerpc/kexec/elf_64.c              | 14 ++++++
>  arch/s390/kernel/machine_kexec_file.c    | 42 ++----------------
>  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 ++--------
>  11 files changed, 113 insertions(+), 85 deletions(-)

For all patches which touch s390:
Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>



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