linux-kernel - Re: [PATCH] random: zero buffer after reading secret entropy from userspace

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Message-ID: <YgQOaCc4vDc6ja/s@owl.dominikbrodowski.net>
Date:   Wed, 9 Feb 2022 19:56:40 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     linux-kernel@...r.kernel.org, Jann Horn <jannh@...gle.com>
Subject: Re: [PATCH] random: zero buffer after reading secret entropy from
 userspace

Am Wed, Feb 09, 2022 at 06:44:56PM +0100 schrieb Jason A. Donenfeld:
> This buffer may contain entropic data that shouldn't stick around longer
> than needed, zero it out our temporary buffer at the end of
> write_pool().
> 
> Cc: Dominik Brodowski <linux@...inikbrodowski.net>
> Cc: Jann Horn <jannh@...gle.com>
> Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>

Reviewed-by: Dominik Brodowski <linux@...inikbrodowski.net>

Thanks,
	Dominik