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

From: Tianjia Zhang
Date: Mon May 31 2021 - 22:54:29 EST


Hi Hongbo,

On 5/31/21 9:30 PM, Hongbo Li wrote:
From: Hongbo Li <herberthbli@xxxxxxxxxxx>

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@xxxxxxxxxxx>
Reviewed-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>
---
crypto/sm2.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)


Just add Cc: to SOB, like this:

Fixes: ea7ecb66440b (...)
Signed-off-by: Hongbo Li <herberthbli@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v5.10+
Reviewed-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>

Thanks,
Tianjia