linux-hardening - Re: [PATCH] hwmon: (asus_wmi_sensors) refactor deprecated strncpy

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Message-Id: <169601380449.3011049.1674985914851229968.b4-ty@chromium.org>
Date: Fri, 29 Sep 2023 11:56:46 -0700
From: Kees Cook <keescook@...omium.org>
To: Ed Brindley <kernel@...davale.org>,
	Denis Pauk <pauk.denis@...il.com>,
	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Justin Stitt <justinstitt@...gle.com>
Cc: Kees Cook <keescook@...omium.org>,
	linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH] hwmon: (asus_wmi_sensors) refactor deprecated strncpy

On Thu, 14 Sep 2023 23:10:34 +0000, Justin Stitt wrote:
> `strncpy` is deprecated for use on NUL-terminated destination strings [1].
> 
> We should prefer more robust and less ambiguous string interfaces.
> 
> A suitable replacement is `strscpy` [2] due to the fact that it
> guarantees NUL-termination on the destination buffer without
> unnecessarily NUL-padding. If, for any reason, NUL-padding is needed
> let's opt for `strscpy_pad`.
> 
> [...]

Applied to for-next/hardening, thanks! (Subject updated...)

Take care,

-- 
Kees Cook