Zhang Changzhong a4fbe70c5c can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes ... The receiver should abort TP if 'total message size' in TP.CM_RTS and TP.CM_BAM is less than 9 or greater than 1785 [1], but currently the j1939 stack only checks the upper bound and the receiver will accept the following broadcast message: vcan1 18ECFF00 [8] 20 08 00 02 FF 00 23 01 vcan1 18EBFF00 [8] 01 00 00 00 00 00 00 00 vcan1 18EBFF00 [8] 02 00 FF FF FF FF FF FF This patch adds check for the lower bound and abort illegal TP. [1] SAE-J1939-82 A.3.4 Row 2 and A.3.6 Row 6. Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol") Link: https://lore.kernel.org/all/1634203601-3460-1-git-send-email-zhangchangzhong@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2021-10-17 14:12:57 +02:00
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Kconfig	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
Makefile	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
address-claim.c	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
bus.c	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
j1939-priv.h	can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes	2021-10-17 14:12:57 +02:00
main.c	can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv	2021-10-17 14:12:56 +02:00
socket.c	can: j1939: extend UAPI to notify about RX status	2021-08-04 12:11:52 +02:00
transport.c	can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes	2021-10-17 14:12:57 +02:00