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can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is acces...
authorMarc Kleine-Budde <mkl@pengutronix.de>
Wed, 31 Oct 2018 13:05:26 +0000 (14:05 +0100)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Fri, 9 Nov 2018 16:20:43 +0000 (17:20 +0100)
commite7a6994d043a1e31d5b17706a22ce33d2a3e4cdc
treea31b86c73f54b0587b2ad0be36b1b760466a848dtree
parent200f5c49f7a2cd694436bfc6cb0662b794c96736commit | diff
can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds

If the "struct can_priv::echo_skb" is accessed out of bounds would lead
to a kernel crash. Better print a sensible warning message instead and
try to recover.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/dev.c diff | blob | history
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