From: Randy Dunlap <rdunlap@infradead.org>
To: Haofeng Li <lihaofeng@kylinos.cn>,
gregkh@linuxfoundation.org, xu.yang_2@nxp.com
Cc: hhhuuu@google.com, kees@kernel.org, kai.aizen.dev@gmail.com,
andriy.shevchenko@intel.com, christophe.jaillet@wanadoo.fr,
dan.scally@ideasonboard.com, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, 13266079573@163.com
Subject: Re: [PATCH] usb: gadget: f_uvc: fix Extension Unit descriptor heap overflow
Date: Sat, 22 Aug 2026 13:01:19 -0700 [thread overview]
Message-ID: <bccf64d8-d7f2-46e9-b3e2-5605decad9d6@infradead.org> (raw)
In-Reply-To: <20260822194705.4151650-1-lihaofeng@kylinos.cn>
On 8/22/26 12:47 PM, Haofeng Li wrote:
> +/* The descriptor must fit into the one-byte bLength field */
descriptor length must fit
?
> +static int uvcg_extension_check_size(u8 nr_in_pins, u8 control_size)
> +{
> + if (UVC_DT_EXTENSION_UNIT_SIZE(nr_in_pins, control_size) > 255)
> + return -EINVAL;
> +
> + return 0;
> +}
--
~Randy
next prev parent reply other threads:[~2026-08-22 20:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-22 19:47 [PATCH] usb: gadget: f_uvc: fix Extension Unit descriptor heap overflow Haofeng Li
2026-08-22 20:01 ` Randy Dunlap [this message]
2026-08-22 20:26 ` Haofeng Li
2026-08-22 20:26 ` [PATCH v2] " Haofeng Li
2026-08-24 8:38 ` [PATCH] " Dan Scally
2026-08-24 9:44 ` [PATCH v3] " Haofeng Li
2026-08-24 15:29 ` Andy Shevchenko
2026-08-24 17:04 ` [PATCH v4] " Haofeng Li
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