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(parent: 50c7ad3) | patch
misc: bcm-vk: fix tty registration race
authorJohan Hovold <johan@kernel.org>
Fri, 17 Sep 2021 11:57:36 +0000 (13:57 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 Sep 2021 14:17:15 +0000 (16:17 +0200)
commitd9d1232b48344c6c72dbdf89fae1e7638e5df757
tree16057b182a4ce007a26f7c912ee1ceddc6587052tree | snapshot
parent50c7ad36e65498802a4015d987d92445ecfb5d00commit | diff
misc: bcm-vk: fix tty registration race

Make sure to set the tty class-device driver data before registering the
tty to avoid having a racing open() dereference a NULL pointer.

Fixes: 91ca10d6fa07 ("misc: bcm-vk: add ttyVK support")
Cc: stable@vger.kernel.org # 5.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917115736.5816-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/bcm-vk/bcm_vk_tty.c diff | blob | history
Domain: System / Kernel;