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

[Eric Biggers]

On Wed, Feb 09, 2022 at 06:44:56PM +0100, Jason A. Donenfeld wrote:
> 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@xxxxxxxxxxxxxxxxxxxx>
> Cc: Jann Horn <jannh@xxxxxxxxxx>
> Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
> Reviewed-by: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/char/random.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 

Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>

- Eric