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staging: gdm724x: gdm_mux: fix use-after-free on module unload
authorJohan Hovold <johan@kernel.org>
Wed, 26 Apr 2017 10:23:04 +0000 (12:23 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 May 2017 12:26:59 +0000 (14:26 +0200)
commit5ac489a80ffb93b08e13017009b3f7617618d8d5
tree481f0e99eda78c147e8cd2a8b61b54df251601a4tree | snapshot
parent265500bf9802a345a3b942d82e4b9292c6e3d92ecommit | diff
staging: gdm724x: gdm_mux: fix use-after-free on module unload

commit b58f45c8fc301fe83ee28cad3e64686c19e78f1c upstream.

Make sure to deregister the USB driver before releasing the tty driver
to avoid use-after-free in the USB disconnect callback where the tty
devices are deregistered.

Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver")
Cc: Won Kang <wkang77@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/gdm724x/gdm_mux.c diff | blob | history
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