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linux/net/can
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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>
History 2022-08-09 09:05:06 +02:00
..
j1939 can: j1939: j1939_session_destroy(): fix memory leak of skbs 2022-08-09 09:05:06 +02:00
af_can.c can: Use netif_rx(). 2022-03-06 11:05:31 +00:00
af_can.h can: introduce CAN midlayer private and allocate it automatically 2019-09-04 13:29:14 +02:00
bcm.c can: bcm: use call_rcu() instead of costly synchronize_rcu() 2022-07-04 10:33:39 +02:00
gw.c can: gw: use call_rcu() instead of costly synchronize_rcu() 2022-02-24 08:26:03 +01:00
isotp.c can: isotp: isotp_bind(): do not validate unused address information 2022-05-19 22:11:28 +02:00
Kconfig net: Kconfig: move the CAN device menu to the "Device Drivers" section 2022-06-11 17:11:02 +02:00
Makefile can: add ISO 15765-2:2016 transport protocol 2020-10-07 23:18:33 +02:00
proc.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
raw.c can: raw: add support for SO_TXTIME/SCM_TXTIME 2022-05-16 22:03:45 +02:00