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Message-ID: <7a54d993-8aff-472f-8132-85e0ca79ff13@tweaklogic.com>
Date: Fri, 5 Apr 2024 17:44:31 +1030
From: Subhajit Ghosh <subhajit.ghosh@...aklogic.com>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen
<lars@...afoo.de>, linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] iio: light: apds9306: Fix off by one in
apds9306_sampling_freq_get()
On 4/4/24 18:01, Dan Carpenter wrote:
> The > comparison needs to be >= to prevent an out of bounds access.
>
> Fixes: 620d1e6c7a3f ("iio: light: Add support for APDS9306 Light Sensor")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
> ---
> drivers/iio/light/apds9306.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/light/apds9306.c b/drivers/iio/light/apds9306.c
> index 4d8490602cd7..49fa6b7d5170 100644
> --- a/drivers/iio/light/apds9306.c
> +++ b/drivers/iio/light/apds9306.c
> @@ -635,7 +635,7 @@ static int apds9306_sampling_freq_get(struct apds9306_data *data, int *val,
> if (ret)
> return ret;
>
> - if (repeat_rate_idx > ARRAY_SIZE(apds9306_repeat_rate_freq))
> + if (repeat_rate_idx >= ARRAY_SIZE(apds9306_repeat_rate_freq))
> return -EINVAL;
Good find.
Reviewed-by: Subhajit Ghosh <subhajit.ghosh@...aklogic.com>
Regards,
Subhajit Ghosh
>
> *val = apds9306_repeat_rate_freq[repeat_rate_idx][0];
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