linux-kernel - Re: [PATCH] befs: Replace all non-returning strlcpy with strscpy

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <168485629566.2163955.5364737954441737976.b4-ty@chromium.org>
Date:   Tue, 23 May 2023 08:38:18 -0700
From:   Kees Cook <keescook@...omium.org>
To:     azeemshaikh38@...il.com, salah.triki@...il.com,
        Kees Cook <keescook@...omium.org>, luisbg@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] befs: Replace all non-returning strlcpy with strscpy

On Tue, 9 May 2023 01:41:36 +0000, Azeem Shaikh wrote:
> strlcpy() reads the entire source buffer first.
> This read may exceed the destination size limit.
> This is both inefficient and can lead to linear read
> overflows if a source string is not NUL-terminated.
> In an effort to remove strlcpy() completely, replace
> strlcpy() here with strscpy().
> No return values were used, so direct replacement is safe.
> 
> [...]

Applied to for-next/hardening, thanks!

[1/1] befs: Replace all non-returning strlcpy with strscpy
      https://git.kernel.org/kees/c/35ba10a47326

-- 
Kees Cook