Re: [PATCH] efi/esrt: Allow ESRT access without CAP_SYS_ADMIN

[Peter Jones]

On Mon, May 22, 2023 at 4:11 AM Ard Biesheuvel <ardb@xxxxxxxxxx> wrote:
>
> On Fri, 12 May 2023 at 21:43, Nicholas Bishop <nicholasbishop@xxxxxxxxxx> wrote:
> >
> > Access to the files in /sys/firmware/efi/esrt has been restricted to
> > CAP_SYS_ADMIN since support for ESRT was added, but this seems overly
> > restrictive given that the files are read-only and just provide
> > information about UEFI firmware updates.
> >
> > Remove the CAP_SYS_ADMIN restriction so that a non-root process can read
> > the files, provided a suitably-privileged process changes the file
> > ownership first. The files are still read-only and still owned by root by
> > default.
> >
> > Signed-off-by: Nicholas Bishop <nicholasbishop@xxxxxxxxxx>
>
> Seems reasonable to me. Peter?

Yeah, I don't think we had any specific reason to limit it.

-- Peter