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can: gs_usb: gs_destroy_candev(): fix use after free
author
Marc Kleine-Budde
<mkl@pengutronix.de>
Wed, 21 May 2014 08:06:02 +0000
(10:06 +0200)
committer
Marc Kleine-Budde
<mkl@pengutronix.de>
Wed, 21 May 2014 11:04:20 +0000
(13:04 +0200)
This patch fixes a use after free of "dev" in gs_destroy_candev().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/usb/gs_usb.c
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diff --git
a/drivers/net/can/usb/gs_usb.c
b/drivers/net/can/usb/gs_usb.c
index
c9f1f99
..
04b0f84
100644
(file)
--- a/
drivers/net/can/usb/gs_usb.c
+++ b/
drivers/net/can/usb/gs_usb.c
@@
-826,8
+826,8
@@
static void gs_destroy_candev(struct gs_can *dev)
{
unregister_candev(dev->netdev);
free_candev(dev->netdev);
- kfree(dev);
usb_kill_anchored_urbs(&dev->tx_submitted);
+ kfree(dev);
}
static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)