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linux/net/can
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Dmitry Antipov 68fceb143b can: j1939: j1939_session_new(): fix skb reference counting 
[ Upstream commit a8c695005b ]

Since j1939_session_skb_queue() does an extra skb_get() for each new
skb, do the same for the initial one in j1939_session_new() to avoid
refcount underflow.

Reported-by: syzbot+d4e8dc385d9258220c31@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d4e8dc385d9258220c31
Fixes: 9d71dd0c70 ("can: add support of SAE J1939 protocol")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20241105094823.2403806-1-dmantipov@yandex.ru
[mkl: clean up commit message]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-14 20:03:04 +01:00
..
j1939 can: j1939: j1939_session_new(): fix skb reference counting 2024-12-14 20:03:04 +01:00
af_can.c can: canxl: add virtual CAN network identifier support 2024-02-13 11:47:13 +01:00
af_can.h can: introduce CAN midlayer private and allocate it automatically 2019-09-04 13:29:14 +02:00
bcm.c can: bcm: Clear bo->bcm_proc_read after remove_proc_entry(). 2024-09-12 09:40:08 +02:00
gw.c can: gw: give feedback on missing CGW_FLAGS_CAN_IIF_TX_OK flag 2023-02-02 15:42:10 +01:00
isotp.c can: isotp: remove ISO 15675-2 specification version where possible 2024-06-20 11:52:56 +02:00
Kconfig can: isotp: remove ISO 15675-2 specification version where possible 2024-06-20 11:52:56 +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: raw_getsockopt(): reduce scope of err 2024-02-20 09:40:46 +01:00