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Message-Id: <169601235586.3007879.13354261591100704778.b4-ty@chromium.org> Date: Fri, 29 Sep 2023 11:32:37 -0700 From: Kees Cook <keescook@...omium.org> To: Willem de Bruijn <willemdebruijn.kernel@...il.com>, Jason Wang <jasowang@...hat.com>, Richard Weinberger <richard@....at>, Anton Ivanov <anton.ivanov@...bridgegreys.com>, Johannes Berg <johannes@...solutions.net>, Justin Stitt <justinstitt@...gle.com> Cc: Kees Cook <keescook@...omium.org>, linux-um@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] um,ethertap: refactor deprecated strncpy On Mon, 11 Sep 2023 17:52:44 +0000, Justin Stitt wrote: > `strncpy` is deprecated for use on NUL-terminated destination strings [1]. > > `gate_buf` should always be NUL-terminated and does not require > NUL-padding. It is used as a string arg inside an argv array given to > `run_helper()`. Due to this, let's use `strscpy` as it guarantees > NUL-terminated on the destination buffer preventing potential buffer > overreads [2]. > > [...] Applied to for-next/hardening, thanks! [1/1] um,ethertap: refactor deprecated strncpy https://git.kernel.org/kees/c/d4e178fe19c9 Take care, -- Kees Cook
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