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Date: Thu, 4 Mar 2021 11:08:39 +0100
From: Romain Perier <romain.perier@...il.com>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: Kees Cook <keescook@...omium.org>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
"David S. Miller" <davem@...emloft.net>, linux-crypto@...r.kernel.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 02/20] crypto: Manual replacement of the deprecated
strlcpy() with return values
Le jeu. 4 mars 2021 à 05:37, Herbert Xu <herbert@...dor.apana.org.au> a
écrit :
> On Mon, Feb 22, 2021 at 04:12:13PM +0100, Romain Perier wrote:
> >
> > diff --git a/crypto/lrw.c b/crypto/lrw.c
> > index bcf09fbc750a..4d35f4439012 100644
> > --- a/crypto/lrw.c
> > +++ b/crypto/lrw.c
> > @@ -357,10 +357,10 @@ static int lrw_create(struct crypto_template
> *tmpl, struct rtattr **tb)
> > * cipher name.
> > */
> > if (!strncmp(cipher_name, "ecb(", 4)) {
> > - unsigned len;
> > + ssize_t len;
> >
> > - len = strlcpy(ecb_name, cipher_name + 4, sizeof(ecb_name));
> > - if (len < 2 || len >= sizeof(ecb_name))
> > + len = strscpy(ecb_name, cipher_name + 4, sizeof(ecb_name));
> > + if (len == -E2BIG || len < 2)
>
> len == -E2BIG is superfluous as len < 2 will catch it anyway.
>
> Thanks,
>
>
Hello,
Yeah that's fixed in v2.
Thanks,
Romain
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