netdev - Re: [PATCH V4 1/2] wifi: ath6kl: Replace ath6kl_usb_submit_ctrl_in with usb_control_msg

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Message-ID: <2024082625-quarters-proofread-1e97@gregkh>
Date: Mon, 26 Aug 2024 15:12:42 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Edward Adam Davis <eadavis@...com>
Cc: kvalo@...nel.org, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, sergei.shtylyov@...il.com,
	syzbot+92c6dd14aaa230be6855@...kaller.appspotmail.com,
	syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH V4 1/2] wifi: ath6kl: Replace ath6kl_usb_submit_ctrl_in
 with usb_control_msg_recv

On Mon, Aug 26, 2024 at 08:29:56PM +0800, Edward Adam Davis wrote:
> ath6kl_usb_submit_ctrl_in() did not take into account the situation where
> the length of the data read from the device is not equal to the len, and
> such missing judgments will result in subsequent code using incorrect data.
> 
> usb_control_msg_recv() handles the abnormal length of the returned data,
> so using it directly can fix this warning.

what warning?