[PATCH 4.14 11/23] can: ems_usb: Fix memory leak on ems_usb_disconnect()

Greg Kroah-Hartman
2018-08-04T09:03:53Z

From: Anton Vasilyev <vasilyev@ispras.ru>

commit 72c05f32f4a5055c9c8fe889bb6903ec959c0aad upstream.

ems_usb_probe() allocates memory for dev->tx_msg_buffer, but there
is no its deallocation in ems_usb_disconnect().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Cc: <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/net/can/usb/ems_usb.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -1071,6 +1071,7 @@ static void ems_usb_disconnect(struct us
usb_free_urb(dev->intr_urb);

kfree(dev->intr_in_buffer);
+ kfree(dev->tx_msg_buffer);
}
}