caif_usb: Check driver name before reading driver state in netdev notifier
authorBen Hutchings <bhutchings@solarflare.com>
Fri, 7 Dec 2012 06:17:26 +0000 (06:17 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sun, 9 Dec 2012 05:34:02 +0000 (00:34 -0500)
commit406636340c301b46062b22f94e3815ef767bd6a3
tree946f232c1817a5f885824716ee70dbe850c6cb18
parentd73bcd2c28e3c77d9f52d42a45a52455488e287e
caif_usb: Check driver name before reading driver state in netdev notifier

In cfusbl_device_notify(), the usbnet and usbdev variables are
initialised before the driver name has been checked.  In case the
device's driver is not cdc_ncm, this may result in reading beyond the
end of the netdev private area.  Move the initialisation below the
driver name check.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/caif/caif_usb.c