From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Kang Chen <k.chen@smail.nju.edu.cn>
Cc: "Jean-Baptiste Maneyrol" <jean-baptiste.maneyrol@tdk.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Srinivas Pandruvada" <srinivas.pandruvada@linux.intel.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iio: imu: inv_mpu6050: validate the CNF0 package
Date: Tue, 3 Nov 2026 13:56:51 +0200 [thread overview]
Message-ID: <aunMA-vO-ILv86P9@ashevche-desk.local> (raw)
In-Reply-To: <20261103114146.75881-1-k.chen@smail.nju.edu.cn>
On Tue, Nov 03, 2026 at 07:41:46PM +0800, Kang Chen wrote:
> asus_acpi_get_sensor_info() walks the package returned by CNF0 and uses
> each element as a package without checking the object type or the
> element type. A top-level string or buffer makes package.count alias
> its length and package.elements alias its data pointer. For a
> non-package element, the inner count and elements pointer are taken
> from unrelated union members, so the driver can walk a firmware-chosen
> pointer and pass it to strscpy().
>
> Require a top-level package and skip elements that are not packages.
acpi_evaluate_object_typed()
--
With Best Regards,
Andy Shevchenko
prev parent reply other threads:[~2026-11-03 11:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 11:41 Kang Chen
2026-11-03 11:56 ` Andy Shevchenko [this message]
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