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Date:   Wed, 29 Nov 2017 17:40:09 +1100
From:   Herbert Xu <>
To:     Corentin Labbe <>
Subject: Re: [PATCH v2] ARM64: crypto: do not call crypto_unregister_skcipher
 twice on error

On Fri, Nov 24, 2017 at 08:22:07AM +0000, Corentin Labbe wrote:
> When a cipher fails to register in aes_init(), the error path goes thought
> aes_exit() then crypto_unregister_skciphers().
> Since aes_exit calls also crypto_unregister_skcipher, this triggers a
> refcount_t: underflow; use-after-free.
> Signed-off-by: Corentin Labbe <>

Patch applied.  Thanks.
Email: Herbert Xu <>
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