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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>
Fri, 28 Apr 2017 10:32:49 +0000 (12:32 +0200)
commitb58f45c8fc301fe83ee28cad3e64686c19e78f1c
treeace8ffa7a9862264d5edfb74fc7e176fe0cca104tree
parentea82fc151c5c092afb08a72289252c359ac88f45commit | diff
staging: gdm724x: gdm_mux: fix use-after-free on module unload

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: stable <stable@vger.kernel.org> # 3.12
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