Marc Kleine-Budde 8ab67da060 can: dev: can_put_echo_skb(): don't crash kernel if can_priv::echo_skb is accessed out of bounds
[ Upstream commit 6411959c10fe917288cbb1038886999148560057 ]

If the "struct can_priv::echoo_skb" is accessed out of bounds, this
would cause a kernel crash. Instead, issue a meaningful warning
message and return with an error.

Fixes: a6e4bc530403 ("can: make the number of echo skb's configurable")
Link: https://lore.kernel.org/all/20231005-can-dev-fix-can-restart-v2-5-91b5c1fd922c@pengutronix.de
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:59:00 +01:00
..
2022-11-07 14:00:27 +01:00
2023-08-11 21:12:45 +02:00
2023-08-11 21:12:45 +02:00