Hi Coiby, On Mon, 2022-11-21 at 15:29 +0800, Coiby Xu wrote: > A kernel builder may not enable KEXEC_SIG and some architectures like > ppc64 simply don't have KEXEC_SIG. In these cases, unless both > IMA_ARCH_POLICY and secure boot also enabled, lockdown doesn't prevent > unsigned kernel image from being kexec'ed via the kexec_file_load > syscall whereas it could prevent one via the kexec_load syscall. Mandate > signature verification for those cases. > > Fixes: 155bdd30af17 ("kexec_file: Restrict at runtime if the kernel is locked > down") > Cc: Matthew Garrett <mj...@srcf.ucam.org> > Cc: Jiri Bohac <jbo...@suse.cz> > Cc: David Howells <dhowe...@redhat.com> > Cc: kexec@lists.infradead.org > Cc: linux-integr...@vger.kernel.org > Signed-off-by: Coiby Xu <c...@redhat.com>
Other than correcting the function name to mandate_signature_verificati on(), Reviewed-by: Mimi Zohar <zo...@linux.ibm.com> _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec