linux-kernel - Re: [PATCH] crypto: qce: fix uaf on qce_aead_register

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Message-ID: <20211120042956.GH25752@gondor.apana.org.au>
Date:   Sat, 20 Nov 2021 12:29:56 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Chengfeng Ye <cyeaa@...nect.ust.hk>
Cc:     thara.gopinath@...aro.org, davem@...emloft.net,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] crypto: qce: fix uaf on qce_aead_register_one

On Thu, Nov 04, 2021 at 06:28:07AM -0700, Chengfeng Ye wrote:
> Pointer alg points to sub field of tmpl, it
> is dereferenced after tmpl is freed. Fix
> this by accessing alg before free tmpl.
> 
> Fixes: 9363efb4 ("crypto: qce - Add support for AEAD algorithms")
> Signed-off-by: Chengfeng Ye <cyeaa@...nect.ust.hk>
> ---
>  drivers/crypto/qce/aead.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

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