linux-kernel - Re: [PATCH 2/7] USB: cdc-acm: fix use-after-free after probe failure

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Message-ID: <6b5623cc6745139c631048c1cd49707a958f51b4.camel@suse.com>
Date:   Mon, 22 Mar 2021 10:39:26 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, Alexey Khoroshilov <khoroshilov@...ras.ru>
Subject: Re: [PATCH 2/7] USB: cdc-acm: fix use-after-free after probe failure

Am Donnerstag, den 18.03.2021, 16:51 +0100 schrieb Johan Hovold:
> If tty-device registration fails the driver would fail to release the
> data interface. When the device is later disconnected, the disconnect
> callback would still be called for the data interface and would go about
> releasing already freed resources.
> 
> Fixes: c93d81955005 ("usb: cdc-acm: fix error handling in acm_probe()")
> Cc: stable@...r.kernel.org      # 3.9
> Cc: Alexey Khoroshilov <khoroshilov@...ras.ru>
> Signed-off-by: Johan Hovold <johan@...nel.org>]
Acked-by: Oliver Neukum <oneukum@...e.com>