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Date:   Wed, 25 Oct 2023 12:23:22 +0200
From:   Vasily Gorbik <gor@linux.ibm.com>
To:     Justin Stitt <justinstitt@google.com>
Cc:     Heiko Carstens <hca@linux.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Sven Schnelle <svens@linux.ibm.com>,
        linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-hardening@vger.kernel.org
Subject: Re: [PATCH] s390/sclp: replace deprecated strncpy with strtomem
Message-ID: <your-ad-here.call-01698229402-ext-6422@work.hours>
References: <20231023-strncpy-drivers-s390-char-sclp-c-v1-1-eaeef80522bb@google.com>
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In-Reply-To: <20231023-strncpy-drivers-s390-char-sclp-c-v1-1-eaeef80522bb@google.com>
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On Mon, Oct 23, 2023 at 07:14:49PM +0000, Justin Stitt wrote:
> Let's move away from using strncpy() as it is deprecated [1].
> 
> Instead use strtomem() as `e.id` is already marked as nonstring:
> |       char id[4] __nonstring;
> 
> We don't need strtomem_pad() because `e` is already memset to 0 --
> rendering any additional NUL-padding useless.
> 
> Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
> Link: https://github.com/KSPP/linux/issues/90
> Cc: linux-hardening@vger.kernel.org
> Signed-off-by: Justin Stitt <justinstitt@google.com>
> ---
> Note: build-tested only.
> 
> Found with: $ rg "strncpy\("
> ---
>  drivers/s390/char/sclp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thank you!