linux-kernel - Re: [PATCH] crypto: algapi - convert cra_refcnt to refcount

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Message-ID: <20180105111721.GC16156@gondor.apana.org.au>
Date:   Fri, 5 Jan 2018 22:17:21 +1100
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Eric Biggers <ebiggers3@...il.com>
Cc:     linux-crypto@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Elena Reshetova <elena.reshetova@...el.com>,
        linux-kernel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>
Subject: Re: [PATCH] crypto: algapi - convert cra_refcnt to refcount_t

On Fri, Dec 29, 2017 at 10:00:46AM -0600, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> Reference counters should use refcount_t rather than atomic_t, since the
> refcount_t implementation can prevent overflows, reducing the
> exploitability of reference leak bugs.  crypto_alg.cra_refcount is a
> reference counter with the usual semantics, so switch it over to
> refcount_t.
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>

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