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Date: Mon, 16 Oct 2017 18:12:09 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Johan Hovold <johan@...nel.org> Subject: [PATCH 3.18 18/19] USB: serial: console: fix use-after-free after failed setup 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold <johan@...nel.org> commit 299d7572e46f98534033a9e65973f13ad1ce9047 upstream. Make sure to reset the USB-console port pointer when console setup fails in order to avoid having the struct usb_serial be prematurely freed by the console code when the device is later disconnected. Fixes: 73e487fdb75f ("[PATCH] USB console: fix disconnection issues") Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Signed-off-by: Johan Hovold <johan@...nel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/usb/serial/console.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -187,6 +187,7 @@ static int usb_console_setup(struct cons tty_kref_put(tty); reset_open_count: port->port.count = 0; + info->port = NULL; usb_autopm_put_interface(serial->interface); error_get_interface: usb_serial_put(serial);
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