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mirror_ubuntu-kernels/drivers/net/mctp
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Jeremy Kerr 6c342ce223 mctp: serial: Cancel pending work from ndo_uninit handler 
We cannot do the cancel_work_sync from after the unregister_netdev, as
the dev pointer is no longer valid, causing a uaf on ldisc unregister
(or device close).

Instead, do the cancel_work_sync from the ndo_uninit op, where the dev
still exists, but the queue has stopped.

Fixes: 7bd9890f3d ("mctp: serial: cancel tx work on ldisc close")
Reported-by: Luo Likang <luolikang@nsfocus.com>
Tested-by: Luo Likang <luolikang@nsfocus.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20220211011552.1861886-1-jk@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-11 14:39:54 -08:00
..
Kconfig mctp: Add MCTP-over-serial transport binding 2021-11-23 11:47:51 +00:00
Makefile mctp: Add MCTP-over-serial transport binding 2021-11-23 11:47:51 +00:00
mctp-serial.c mctp: serial: Cancel pending work from ndo_uninit handler 2022-02-11 14:39:54 -08:00