linux-kernel - Re: [PATCH] crypto: sun8i-ce - use kfree_sensitive to clear and free sensitive data

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Message-ID: <20210812113605.GA561@gondor.apana.org.au>
Date:   Thu, 12 Aug 2021 19:36:05 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Jason Wang <wangborong@...rlc.com>
Cc:     clabbe.montjoie@...il.com, davem@...emloft.net, mripard@...nel.org,
        wens@...e.org, jernej.skrabec@...il.com, mchehab+huawei@...nel.org,
        corbet@....net, baijiaju1990@...il.com,
        linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: sun8i-ce - use kfree_sensitive to clear and free
 sensitive data

On Tue, Aug 03, 2021 at 12:55:25PM +0000, Jason Wang wrote:
> The kfree_sensitive is a kernel API to clear sensitive information
> that should not be leaked to other future users of the same memory
> objects and free the memory. Its function is the same as the
> combination  of memzero_explicit and kfree. Thus, we can replace the
> combination APIs with the single kfree_sensitive API.
> 
> Signed-off-by: Jason Wang <wangborong@...rlc.com>
> ---
>  drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c | 9 +++------
>  drivers/crypto/allwinner/sun8i-ce/sun8i-ce-trng.c | 3 +--
>  2 files changed, 4 insertions(+), 8 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt