[PATCH 4.9 26/32] can: ems_usb: Fix memory leak on ems_usb_disconnect()

From: Greg Kroah-Hartman
Date: Sat Aug 04 2018 - 05:06:20 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Anton Vasilyev <vasilyev@xxxxxxxxx>

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@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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);
}
}