Oliver Hartkopp 540dff311c can: isotp: fix error path in isotp_sendmsg() to unlock wait queue ...

commit 8375dfac4f upstream.

Commit 43a08c3bda ("can: isotp: isotp_sendmsg(): fix TX buffer concurrent
access in isotp_sendmsg()") introduced a new locking scheme that may render
the userspace application in a locking state when an error is detected.
This issue shows up under high load on simultaneously running isotp channels
with identical configuration which is against the ISO specification and
therefore breaks any reasonable PDU communication anyway.

Fixes: 43a08c3bda ("can: isotp: isotp_sendmsg(): fix TX buffer concurrent access in isotp_sendmsg()")
Link: https://lore.kernel.org/all/20220209073601.25728-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org
Cc: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-02-16 12:56:05 +01:00

..

j1939

can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM

2021-11-18 19:16:03 +01:00

af_can.c

net: introduce CAN specific pointer in the struct net_device

2021-02-24 14:32:15 -08:00

af_can.h

can: introduce CAN midlayer private and allocate it automatically

2019-09-04 13:29:14 +02:00

bcm.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-06-29 15:45:27 -07:00

gw.c

can: gw: synchronize rcu operations before removing gw job entry

2021-06-19 23:53:43 +02:00

isotp.c

can: isotp: fix error path in isotp_sendmsg() to unlock wait queue

2022-02-16 12:56:05 +01:00

Kconfig

net: remove redundant 'depends on NET'

2021-01-27 17:04:12 -08:00

Makefile

can: add ISO 15765-2:2016 transport protocol

2020-10-07 23:18:33 +02:00

proc.c

can: proc: remove unnecessary variables

2021-05-27 09:42:21 +02:00

raw.c

net: Remove redundant if statements

2021-08-05 13:27:50 +01:00