[v2] crypto: caam - switch to use devm_kmemdup_array()

[PATCH v2] crypto: caam - switch to use devm_kmemdup_array()

Posted by zhang.enpei@zte.com.cn 2 months, 2 weeks ago

From: Zhang Enpei <zhang.enpei@zte.com.cn>

Use devm_kmemdup_array() to avoid multiplication or possible overflows.

Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
---
 drivers/crypto/caam/ctrl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index ce7b99019537..2250dce9c344 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -592,9 +592,9 @@ static int init_clocks(struct device *dev, const struct caam_imx_data *data)
        int ret;

        ctrlpriv->num_clks = data->num_clks;
-       ctrlpriv->clks = devm_kmemdup(dev, data->clks,
-                                     data->num_clks * sizeof(data->clks[0]),
-                                     GFP_KERNEL);
+       ctrlpriv->clks = devm_kmemdup_array(dev, data->clks,
+                                           data->num_clks, sizeof(*data->clks),
+                                           GFP_KERNEL);
        if (!ctrlpriv->clks)
                return -ENOMEM;

-- 
2.25.1

Re: [PATCH v2] crypto: caam - switch to use devm_kmemdup_array()

Posted by Herbert Xu 1 month, 2 weeks ago

On Wed, Jul 23, 2025 at 10:50:27AM +0800, zhang.enpei@zte.com.cn wrote:
> From: Zhang Enpei <zhang.enpei@zte.com.cn>
> 
> Use devm_kmemdup_array() to avoid multiplication or possible overflows.
> 
> Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
> ---
>  drivers/crypto/caam/ctrl.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
> index ce7b99019537..2250dce9c344 100644
> --- a/drivers/crypto/caam/ctrl.c
> +++ b/drivers/crypto/caam/ctrl.c
> @@ -592,9 +592,9 @@ static int init_clocks(struct device *dev, const struct caam_imx_data *data)
>         int ret;
> 
>         ctrlpriv->num_clks = data->num_clks;
> -       ctrlpriv->clks = devm_kmemdup(dev, data->clks,
> -                                     data->num_clks * sizeof(data->clks[0]),
> -                                     GFP_KERNEL);
> +       ctrlpriv->clks = devm_kmemdup_array(dev, data->clks,
> +                                           data->num_clks, sizeof(*data->clks),
> +                                           GFP_KERNEL);
>         if (!ctrlpriv->clks)
>                 return -ENOMEM;

This patch doesn't apply because it is space-damaged.  Please
resubmit.

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

Re: [PATCH v2] crypto: caam - switch to use devm_kmemdup_array()

Posted by Horia Geanta 2 months, 1 week ago

On 7/23/2025 5:51 AM, zhang.enpei@zte.com.cn wrote:
> From: Zhang Enpei <zhang.enpei@zte.com.cn>
> 
> Use devm_kmemdup_array() to avoid multiplication or possible overflows.
> 
> Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>

Thanks,
Horia

Re: [PATCH v2] crypto: caam - switch to use devm_kmemdup_array()

Posted by zhang.enpei@zte.com.cn 1 month, 2 weeks ago

Thanks for your review!
I'm curious about whether this patch could be applied or not. If it could, when will it be merged?

Regards,
Zhang
------------------Original------------------
From: horia.geanta <horia.geanta@nxp.com>
To: Zhang Enpei10344075;
Cc: pankaj.gupta <pankaj.gupta@nxp.com>;gaurav.jain <gaurav.jain@nxp.com>;herbert <herbert@gondor.apana.org.au>;davem <davem@davemloft.net>;linux-crypto <linux-crypto@vger.kernel.org>;linux-kernel <linux-kernel@vger.kernel.org>;christophe.jaillet <christophe.jaillet@wanadoo.fr>;
Date: 2025/07/25 16:01
Subject: Re: [PATCH v2] crypto: caam - switch to use devm_kmemdup_array()
On 7/23/2025 5:51 AM, zhang.enpei@zte.com.cn wrote:
> From: Zhang Enpei <zhang.enpei@zte.com.cn>
>
> Use devm_kmemdup_array() to avoid multiplication or possible overflows.
>
> Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Thanks,
Horia

Re: [PATCH v2] crypto: caam - switch to use devm_kmemdup_array()

Posted by Horia Geanta 1 month, 2 weeks ago

On 8/21/2025 2:30 PM, zhang.enpei@zte.com.cn wrote:
> Thanks for your review!
> I'm curious about whether this patch could be applied or not. If it could, when will it be merged?
> 
Looks like you've missed Herbert's reply:
https://lore.kernel.org/linux-crypto/aKBNn7qgBVhJcLhq@gondor.apana.org.au/

Regards,
Horia

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On 8/21/2025 2:30 PM, zhang.enpei@zte.com.cn wrote:
> Thanks for your review!
> I'm curious about whether this patch could be applied or not. If it cou=
ld, when will it be merged?
>=20
Looks like you've missed Herbert's reply:
https://lore.kernel.org/linux-crypto/aKBNn7qgBVhJcLhq@gondor.apana.org.au=
/

Regards,
Horia


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