On 09.02.2022 08:36:01, Oliver Hartkopp wrote:
> Commit 43a08c3bdac4 ("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: 43a08c3bdac4 ("can: isotp: isotp_sendmsg(): fix TX buffer concurrent access in isotp_sendmsg()")
> Cc: Ziyang Xuan <william.xuanziyang@xxxxxxxxxx>
> Signed-off-by: Oliver Hartkopp <socketcan@xxxxxxxxxxxx>
Applied to linux-can/testing. Added stable on Cc.
regards,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
Vertretung West/Dortmund | Phone: +49-231-2826-924 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
Attachment:
signature.asc
Description: PGP signature
