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can: pcan_usb: don't touch skb after netif_rx()
authorMarc Kleine-Budde <mkl@pengutronix.de>
Sat, 11 Jul 2015 19:16:08 +0000 (21:16 +0200)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Wed, 15 Jul 2015 07:04:28 +0000 (09:04 +0200)
commit1c0ee046957648106b415df79038e4e62b144c19
tree7def9771b07ca14440409d48ab627c90416a1472tree | snapshot
parent9b721a4cefcbdedadbe72b5ec405046c139cf8adcommit | diff
can: pcan_usb: don't touch skb after netif_rx()

There is no guarantee that the skb is in the same state after calling
net_receive_skb() or netif_rx(). It might be freed or reused. Not really
harmful as its a read access, except you turn on the proper debugging options
which catch a use after free.

Cc: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/usb/peak_usb/pcan_usb.c diff | blob | history
drivers/net/can/usb/peak_usb/pcan_usb_pro.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git