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can: sja1000: 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)
commit889dd06e107d816fe63ff65e5dd3466949878439
tree727b45f0d8f8240f9cfaab72d363864eb074d5f6tree | snapshot
parentef934e89f5e68535c447789b74de42cf389e55decommit | diff
can: sja1000: 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: Wolfgang Grandegger <wg@grandegger.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/sja1000/sja1000.c diff | blob | history
Domain: System / Kernel;