Re: [PATCH v2 0/3] initramfs: add support for xattrs in the initial ram disk

From: Mimi Zohar
Date: Sun May 12 2019 - 08:54:40 EST


On Sun, 2019-05-12 at 11:17 +0200, Dominik Brodowski wrote:
> On Thu, May 09, 2019 at 01:24:17PM +0200, Roberto Sassu wrote:
> > This proposal consists in marshaling pathnames and xattrs in a file called
> > .xattr-list. They are unmarshaled by the CPIO parser after all files have
> > been extracted.
>
> Couldn't this parsing of the .xattr-list file and the setting of the xattrs
> be done equivalently by the initramfs' /init? Why is kernel involvement
> actually required here?

It's too late. The /init itself should be signed and verified.

Mimi