linux-hardening - Re: [PATCH] net: wwan: replace deprecated strncpy with strscpy

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Message-ID: <202310191715.5436893DD0@keescook>
Date: Thu, 19 Oct 2023 17:15:55 -0700
From: Kees Cook <keescook@...omium.org>
To: Stephan Gerhold <stephan@...hold.net>
Cc: Justin Stitt <justinstitt@...gle.com>,
	Loic Poulain <loic.poulain@...aro.org>,
	Sergey Ryazanov <ryazanov.s.a@...il.com>,
	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-remoteproc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] net: wwan: replace deprecated strncpy with strscpy_pad

On Thu, Oct 19, 2023 at 03:39:10PM +0200, Stephan Gerhold wrote:
> Hm, strscpy_pad() is neither a typical compiler builtin nor an inline
> function, so my naive assumption would be that this could only be
> optimized away with LTO?

Oops, yes, my mistake. I'm too used to the other fortified helpers that
are inlined...

-- 
Kees Cook