This is a note to let you know that I've just added the patch titled USB: serial: omninet: fix reference leaks at open to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-serial-omninet-fix-reference-leaks-at-open.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 30572418b445d85fcfe6c8fe84c947d2606767d8 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan@xxxxxxxxxx> Date: Mon, 6 Mar 2017 17:36:38 +0100 Subject: USB: serial: omninet: fix reference leaks at open From: Johan Hovold <johan@xxxxxxxxxx> commit 30572418b445d85fcfe6c8fe84c947d2606767d8 upstream. This driver needlessly took another reference to the tty on open, a reference which was then never released on close. This lead to not just a leak of the tty, but also a driver reference leak that prevented the driver from being unloaded after a port had once been opened. Fixes: 4a90f09b20f4 ("tty: usb-serial krefs") Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/serial/omninet.c | 6 ------ 1 file changed, 6 deletions(-) --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -142,12 +142,6 @@ static int omninet_port_remove(struct us static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; - struct usb_serial_port *wport; - - wport = serial->port[1]; - tty_port_tty_set(&wport->port, tty); - return usb_serial_generic_open(tty, port); } Patches currently in stable-queue which might be from johan@xxxxxxxxxx are queue-4.9/usb-serial-digi_acceleport-fix-oob-event-processing.patch queue-4.9/usb-serial-omninet-fix-reference-leaks-at-open.patch queue-4.9/usb-serial-digi_acceleport-fix-oob-data-sanity-check.patch queue-4.9/usb-iowarrior-fix-null-deref-in-write.patch queue-4.9/usb-iowarrior-fix-null-deref-at-probe.patch queue-4.9/usb-serial-io_ti-fix-null-deref-in-interrupt-callback.patch queue-4.9/usb-serial-io_ti-fix-information-leak-in-completion-handler.patch queue-4.9/usb-serial-safe_serial-fix-information-leak-in-completion-handler.patch