linux-kernel - Re: [PATCH net] can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices

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Message-ID: <df1feb99-2996-4a84-8e04-2a850c05b602@kernel.org>
Date: Fri, 9 Jan 2026 08:50:03 +0100
From: Vincent Mailhol <mailhol@...nel.org>
To: Jerry Wu <w.7erry@...mail.com>, mkl@...gutronix.de
Cc: mailhol@...nel.org, extja@...ser.com, eeodqql09@...il.com,
 linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
 Jimmy Assarsson <extja@...ser.com>
Subject: Re: [PATCH net] can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks
 to USB devices

+CC: Jimmy

On 09/01/2026 at 02:36, Jerry Wu wrote:
> Uninitialized Kernel memory can leak to USB devices.

Please explain in your description which field(s) is(are) uninitialized
in cmd.

(or attach a report in which you can witness the information leak).

> Fix this by using kzalloc() instead of kmalloc().
> 
> Fixes: 7259124eac7d ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c")
> Signed-off-by: Jerry Wu <w.7erry@...mail.com>

Yours sincerely,
Vincent Mailhol