can: c_can: Do not access skb after net_receive_skb()

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There is no guarantee that the skb is in the same state after calling
net_receive_skb(). 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.

The whole can subsystem is full of this. Copy and paste ....

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

...

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Thomas Gleixner 2014-04-11 08:13:12 +00:00 • committed by Marc Kleine-Budde

parent ef1d2e286a

commit 9c64863a49

1 changed files with 4 additions and 5 deletions

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drivers/net/can/c_can/c_can.c

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