linux-kernel - Re: [PATCH v3 1/3] m68k: process bootinfo records before saving them

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Message-ID: <CAMuHMdVJoocGUugnhv=pbgu7z6MFexmRGH1JkQCjm9g-=HiowQ@mail.gmail.com>
Date:   Mon, 26 Sep 2022 11:57:02 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] m68k: process bootinfo records before saving them

On Fri, Sep 23, 2022 at 7:03 PM Jason A. Donenfeld <Jason@...c4.com> wrote:
> The RNG seed boot record is memzeroed after processing, in order to
> preserve forward secrecy. By saving the bootinfo for procfs prior to
> that, forward secrecy is violated, since it becomes possible to recover
> past states. So, save the bootinfo block only after first processing
> them.
>
> Fixes: a1ee38ab1a75 ("m68k: virt: Use RNG seed from bootinfo block")
> Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds