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Date: Fri, 22 Dec 2023 12:36:53 +0800
From: Herbert Xu <herbert@gondor.apana.org.au>
To: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	Mimi Zohar <zohar@linux.ibm.com>, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] crypto: lib/mpi - Fix unexpected pointer access
Message-ID: <ZYUSZV8zHJMC444n@gondor.apana.org.au>
References: <20231214030834.2665-1-tianjia.zhang@linux.alibaba.com>
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On Thu, Dec 14, 2023 at 11:08:34AM +0800, Tianjia Zhang wrote:
> When the mpi_ec_ctx structure is initialized, some fields are not
> cleared, causing a crash when referencing the field when the
> structure was released. Initially, this issue was ignored because
> memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag.
> For example, this error will be triggered when calculating the
> Za value for SM2 separately.
> 
> Fixes: d58bb7e55a8a ("lib/mpi: Introduce ec implementation to MPI library")
> Cc: stable@vger.kernel.org # v6.5
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
> ---
>  lib/crypto/mpi/ec.c | 3 +++
>  1 file changed, 3 insertions(+)

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