linux-kernel - Re: [PATCH] crypto: sm2 - fix a memory leak in sm2

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Date:   Thu, 3 Jun 2021 20:34:40 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Hongbo Li <herbert.tencent@...il.com>
Cc:     keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        ebiggers@...nel.org, dhowells@...hat.com, jarkko@...nel.org,
        tianjia.zhang@...ux.alibaba.com, herberthbli@...cent.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: sm2 - fix a memory leak in sm2

On Tue, Jun 01, 2021 at 09:05:52PM +0800, Hongbo Li wrote:
> From: Hongbo Li <herberthbli@...cent.com>
> 
> SM2 module alloc ec->Q in sm2_set_pub_key(), when doing alg test in
> test_akcipher_one(), it will set public key for every test vector,
> and don't free ec->Q. This will cause a memory leak.
> 
> This patch alloc ec->Q in sm2_ec_ctx_init().
> 
> Fixes: ea7ecb66440b ("crypto: sm2 - introduce OSCCA SM2 asymmetric cipher algorithm")
> Signed-off-by: Hongbo Li <herberthbli@...cent.com>
> Cc: stable@...r.kernel.org # v5.10+
> Reviewed-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
> ---
>  crypto/sm2.c | 24 ++++++++++--------------
>  1 file changed, 10 insertions(+), 14 deletions(-)

Your patch has been discarded by patchwork because you didn't
update the Subject.  The usual method is to use a version prefix
such as v2, v3, etc. so that the Subject remains distinct.

Please resubmit with a new Subject.

Oh and don't cc stable@...r.kernel.org.

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