Firmware signing -- Re: [PATCH 00/27] security, efi: Add kernel lockdown

From: David Howells
Date: Thu Nov 02 2017 - 18:04:27 EST


Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx> wrote:

> > Only validly signed device firmware may be loaded.
>
> fw_get_filesystem_firmware() calls kernel_read_file_from_path() to
> read the firmware, which calls into the security hooks. Is there
> another place that validates the firmware signatures. ÂI'm not seeing
> which patch requires firmware to be signed?

Luis has a set of patches for this. However, I'm not sure if that's going
anywhere at the moment. Possibly I should remove this from the manpage for
the moment.

David