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UPSTREAM: USB: usb_driver_claim_interface: add sanity checking
authorBadhri Jagan Sridharan <Badhri@google.com>
Tue, 30 Aug 2016 20:35:32 +0000 (13:35 -0700)
committerBadhri Jagan Sridharan <Badhri@google.com>
Tue, 30 Aug 2016 20:41:35 +0000 (13:41 -0700)
commitae6790121ceb4608e1a1dec10e285c8d661463d5
treeba27302e91882515b7be384e251074c0263ea727tree | snapshot (tar.gz zip)
parentee5c7a9739c6ddd0d54385c313b5d6f87652cd63commit | diff
UPSTREAM: USB: usb_driver_claim_interface: add sanity checking

commit 0b818e3956fc1ad976bee791eadcbb3b5fec5bfd upstream.

Attacks that trick drivers into passing a NULL pointer
to usb_driver_claim_interface() using forged descriptors are
known. This thwarts them by sanity checking.

BUG: 28242610

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com>
Change-Id: Ib43ec5edb156985a9db941785a313f6801df092a
drivers/usb/core/driver.c diff | blob | blame | history