netdev - Re: [PATCH v2 2/7] scsi: mpt3sas: replace deprecated strncpy with strscpy

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Message-ID: <202402281603.E33A62C096@keescook>
Date: Wed, 28 Feb 2024 16:03:45 -0800
From: Kees Cook <keescook@...omium.org>
To: Justin Stitt <justinstitt@...gle.com>
Cc: Sathya Prakash Veerichetty <sathya.prakash@...adcom.com>,
	Kashyap Desai <kashyap.desai@...adcom.com>,
	Sumit Saxena <sumit.saxena@...adcom.com>,
	Sreekanth Reddy <sreekanth.reddy@...adcom.com>,
	"James E.J. Bottomley" <jejb@...ux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Suganath Prabu Subramani <suganath-prabu.subramani@...adcom.com>,
	Ariel Elior <aelior@...vell.com>,
	Manish Chopra <manishc@...vell.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Saurav Kashyap <skashyap@...vell.com>,
	Javed Hasan <jhasan@...vell.com>,
	GR-QLogic-Storage-Upstream@...vell.com,
	Nilesh Javali <njavali@...vell.com>,
	Manish Rangankar <mrangankar@...vell.com>,
	Don Brace <don.brace@...rochip.com>,
	mpi3mr-linuxdrv.pdl@...adcom.com, linux-scsi@...r.kernel.org,
	linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
	MPT-FusionLinux.pdl@...adcom.com, netdev@...r.kernel.org,
	storagedev@...rochip.com
Subject: Re: [PATCH v2 2/7] scsi: mpt3sas: replace deprecated strncpy with
 strscpy

On Wed, Feb 28, 2024 at 10:59:02PM +0000, Justin Stitt wrote:
> The replacement in mpt3sas_base.c is a trivial one because desc is
> already zero-initialized meaning there is no functional change here.
> 
> For mpt3sas_transport.c, we know edev is zero-initialized as well while
> manufacture_reply comes from dma_alloc_coherent(). No functional change
> here either.
> 
> For all cases, use the more idiomatic strscpy() usage of:
> strscpy(dest, src, sizeof(dest))
> 
> Signed-off-by: Justin Stitt <justinstitt@...gle.com>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook