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
