can: isotp: isotp_bind(): do not validate unused address information

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commit b76b163f46 upstream

With commit 2aa39889c4 ("can: isotp: isotp_bind(): return -EINVAL on
incorrect CAN ID formatting") the bind() syscall returns -EINVAL when
the given CAN ID needed to be sanitized. But in the case of an unconfirmed
broadcast mode the rx CAN ID is not needed and may be uninitialized from
the caller - which is ok.

This patch makes sure the result of an inproper CAN ID format is only
provided when the address information is needed.

Link: https://lore.kernel.org/all/20220517145653.2556-1-socketcan@hartkopp.net
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Oliver Hartkopp 2023-10-31 10:30:24 +01:00 • committed by Greg Kroah-Hartman

parent e163ad6a86

commit d72ff64783

1 changed files with 17 additions and 12 deletions

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net/can/isotp.c

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