Zhang Changzhong 24d8a24f56 can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM ... commit 164051a6ab upstream. The TP.CM_BAM message must be sent to the global address [1], so add a check to drop TP.CM_BAM sent to a non-global address. Without this patch, the receiver will treat the following packets as normal RTS/CTS transport: 18EC0102#20090002FF002301 18EB0102#0100000000000000 18EB0102#020000FFFFFFFFFF [1] SAE-J1939-82 2015 A.3.3 Row 1. Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol") Link: https://lore.kernel.org/all/1635431907-15617-4-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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-18 19:16:03 +01:00
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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_can_recv(): ignore messages with invalid source address	2021-11-18 19:16:03 +01:00
socket.c	can: j1939: extend UAPI to notify about RX status	2021-08-04 12:11:52 +02:00
transport.c	can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM	2021-11-18 19:16:03 +01:00