linux-kernel - Re: [PATCH] crypto: sun8i-ss: Fix memory leak of object d when dma

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Message-ID: <20210312131206.GE31502@gondor.apana.org.au>
Date:   Sat, 13 Mar 2021 00:12:06 +1100
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Colin King <colin.king@...onical.com>
Cc:     Corentin Labbe <clabbe.montjoie@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: sun8i-ss: Fix memory leak of object d when
 dma_iv fails to map

On Tue, Mar 02, 2021 at 04:34:46PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> In the case where the dma_iv mapping fails, the return error path leaks
> the memory allocated to object d.  Fix this by adding a new error return
> label and jumping to this to ensure d is free'd before the return.
> 
> Addresses-Coverity: ("Resource leak")
> Fixes: ac2614d721de ("crypto: sun8i-ss - Add support for the PRNG")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/crypto/allwinner/sun8i-ss/sun8i-ss-prng.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Patch applied.  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