USB: usb-skeleton: fix use-after-free after driver unbind
authorJohan Hovold <johan@kernel.org>
Wed, 9 Oct 2019 17:09:43 +0000 (19:09 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Oct 2019 10:41:19 +0000 (12:41 +0200)
commit6353001852776e7eeaab4da78922d4c6f2b076af
tree06d23aef9ed68cdd169f2666bcfd41cae100a48c
parentbed5ef230943863b9abf5eae226a20fad9a8ff71
USB: usb-skeleton: fix use-after-free after driver unbind

The driver failed to stop its read URB on disconnect, something which
could lead to a use-after-free in the completion handler after driver
unbind in case the character device has been closed.

Fixes: e7389cc9a7ff ("USB: skel_read really sucks royally")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191009170944.30057-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/usb-skeleton.c