Re: [PATCH v2 1/2] crypto: caam - fix pkcs1pad(rsa-caam, sha256) failure because of invalid input

[Iuliana Prodan]

On 5/23/2019 9:12 AM, Herbert Xu wrote:
> On Wed, May 15, 2019 at 02:25:45PM +0300, Iuliana Prodan wrote:
>>
>> @@ -1058,6 +1105,14 @@ static int __init caam_pkc_init(void)
>>   		goto out_put_dev;
>>   	}
>>   
>> +	/* allocate zero buffer, used for padding input */
>> +	zero_buffer = kzalloc(CAAM_RSA_MAX_INPUT_SIZE - 1, GFP_DMA |
>> +			      GFP_KERNEL);
>> +	if (!zero_buffer) {
>> +		err = -ENOMEM;
>> +		goto out_put_dev;
>> +	}
>> +
>>   	err = crypto_register_akcipher(&caam_rsa);
>>   	if (err)
>>   		dev_warn(ctrldev, "%s alg registration failed\n",
> 
> This patch does not apply on top of the caam patch-series from Horia.
> You're also going to leak zero_buffer if crypto_register_akcipher
> fails.
> 
> Cheers,
> 

I'll fix the conflicts and also the leak of zero_buffer if 
crypto_register_akcipher fails and send a new version.

Regards,
Iulia