All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Vaibhav Agarwal <vaibhav.sr@gmail.com>,
	Mark Greer <mgreer@animalcreek.com>,
	Johan Hovold <johan@kernel.org>, Alex Elder <elder@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Nathan Chancellor <natechancellor@gmail.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Arnd Bergmann <arnd@arndb.de>, Coiby Xu <coiby.xu@gmail.com>,
	greybus-dev@lists.linaro.org, devel@driverdev.osuosl.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH] staging: greybus: fix stack size warning with UBSAN
Date: Mon, 4 Jan 2021 09:22:04 +0300	[thread overview]
Message-ID: <20210104062203.GP2831@kadam> (raw)
In-Reply-To: <20210103223541.2790855-1-arnd@kernel.org>

On Sun, Jan 03, 2021 at 11:35:32PM +0100, Arnd Bergmann wrote:
> @@ -1050,78 +1088,28 @@ static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module,
>  	strlcpy(temp_name, w->name, NAME_SIZE);
>  	snprintf(w->name, NAME_SIZE, "GB %d %s", module->dev_id, temp_name);
>  
> +	if (w->type > ARRAY_SIZE(gbaudio_widgets)) {
                    ^^

Off by one.  >= here.


> +		ret = -EINVAL;
> +		goto error;
> +	}
> +	*dw = gbaudio_widgets[w->type];
> +	dw->name = w->name;

regards,
dan carpenter


      parent reply	other threads:[~2021-01-04  6:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-03 22:35 [PATCH] staging: greybus: fix stack size warning with UBSAN Arnd Bergmann
2021-01-04  2:18 ` Alex Elder
2021-01-04  6:22 ` Dan Carpenter [this message]

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=20210104062203.GP2831@kadam \
    --to=dan.carpenter@oracle.com \
    --cc=arnd@arndb.de \
    --cc=arnd@kernel.org \
    --cc=clang-built-linux@googlegroups.com \
    --cc=coiby.xu@gmail.com \
    --cc=devel@driverdev.osuosl.org \
    --cc=elder@kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=greybus-dev@lists.linaro.org \
    --cc=johan@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mgreer@animalcreek.com \
    --cc=natechancellor@gmail.com \
    --cc=ndesaulniers@google.com \
    --cc=vaibhav.sr@gmail.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.