linux-kernel - Re: [PATCH v2] media: dvb-usb-v2: disallow 0-length I2C reads

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Message-ID: <aC2pgdt5IgzCWNMX@shikoro>
Date: Wed, 21 May 2025 12:22:57 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Nikita Zhandarovich <n.zhandarovich@...tech.ru>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	syzbot+721071c10f3c7e4e5dcb@...kaller.appspotmail.com,
	lvc-project@...uxtesting.org,
	Alan Stern <stern@...land.harvard.edu>, gregkh@...uxfoundation.org
Subject: Re: [PATCH v2] media: dvb-usb-v2: disallow 0-length I2C reads


> +static const struct i2c_adapter_quirks i2c_usb_quirks = {
> +	.flags = I2C_AQ_NO_ZERO_LEN_READ,
> +};

Maybe it makes sense to add a comment like

/* would create an invalid usb_control_msg */

?


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