From: Simon Horman <simon.horman@corigine.com>
To: Azeem Shaikh <azeemshaikh38@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
linux-hardening@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org,
David Ahern <dsahern@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Kees Cook <keescook@chromium.org>,
netdev@vger.kernel.org
Subject: Re: [PATCH] net: Replace strlcpy with strscpy
Date: Tue, 4 Jul 2023 15:22:17 +0100 [thread overview]
Message-ID: <ZKQrGaJzNlLse+js@corigine.com> (raw)
In-Reply-To: <20230703175840.3706231-1-azeemshaikh38@gmail.com>
On Mon, Jul 03, 2023 at 05:58:40PM +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 [1].
> In an effort to remove strlcpy() completely [2], replace
> strlcpy() here with strscpy().
> No return values were used, so direct replacement is safe.
>
> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
> [2] https://github.com/KSPP/linux/issues/89
>
> Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
next prev parent reply other threads:[~2023-07-04 14:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-03 17:58 [PATCH] net: Replace strlcpy with strscpy Azeem Shaikh
2023-07-04 14:22 ` Simon Horman [this message]
2023-07-04 17:05 ` David Ahern
2023-07-04 18:50 ` patchwork-bot+netdevbpf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZKQrGaJzNlLse+js@corigine.com \
--to=simon.horman@corigine.com \
--cc=azeemshaikh38@gmail.com \
--cc=davem@davemloft.net \
--cc=dsahern@kernel.org \
--cc=keescook@chromium.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).