OpenCloudOS-Kernel/net/can/j1939
Fedor Pchelkin 8c21c54a53 can: j1939: j1939_session_destroy(): fix memory leak of skbs
We need to drop skb references taken in j1939_session_skb_queue() when
destroying a session in j1939_session_destroy(). Otherwise those skbs
would be lost.

Link to Syzkaller info and repro: https://forge.ispras.ru/issues/11743.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

V1: https://lore.kernel.org/all/20220708175949.539064-1-pchelkin@ispras.ru

Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol")
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/all/20220805150216.66313-1-pchelkin@ispras.ru
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-08-09 09:05:06 +02:00
..
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 2021-11-06 17:29:24 +01:00
socket.c can: j1939: j1939_sk_queue_activate_next_locked(): replace WARN_ON_ONCE with netdev_warn_once() 2022-08-09 09:05:06 +02:00
transport.c can: j1939: j1939_session_destroy(): fix memory leak of skbs 2022-08-09 09:05:06 +02:00