android_kernel_google_msm/drivers/usb
Josh Boyer 4c83bc5083 USB: iowarrior: fix oops with malicious USB descriptors
The iowarrior driver expects at least one valid endpoint.  If given
malicious descriptors that specify 0 for the number of endpoints,
it will crash in the probe function.  Ensure there is at least
one endpoint on the interface before using it.

The full report of this issue can be found here:
http://seclists.org/bugtraq/2016/Mar/87

Change-Id: I78dfd62f4d0a77d8145dfba5c479e6ac766374cc
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-10 01:43:19 +03:00
..
atm
c67x00
class USB: cdc-acm: more sanity checking 2016-10-29 23:12:35 +08:00
core USB: usbfs: fix potential infoleak in devio 2016-06-15 06:10:35 +00:00
dwc3 usb: dwc3: gadget: Protect against ep disabling during completion 2014-12-01 16:08:33 -08:00
early
gadget usb: diag: change %p to %pK in debug messages 2017-06-26 20:33:55 +03:00
host EHCI: HSIC: Halt the controller while resetting the port 2013-07-15 18:53:28 +00:00
image
misc USB: iowarrior: fix oops with malicious USB descriptors 2017-07-10 01:43:19 +03:00
mon
musb
otg driver: usb: otg: Add a wakelock for the usb cable and otg cable detected. 2013-11-08 23:37:09 +00:00
renesas_usbhs
serial USB: cypress_m8: add endpoint sanity check 2017-06-26 18:26:18 +03:00
storage
wusbcore
Kconfig
Makefile
README
usb-common.c
usb-skeleton.c

To understand all the Linux-USB framework, you'll use these resources:

    * This source code.  This is necessarily an evolving work, and
      includes kerneldoc that should help you get a current overview.
      ("make pdfdocs", and then look at "usb.pdf" for host side and
      "gadget.pdf" for peripheral side.)  Also, Documentation/usb has
      more information.

    * The USB 2.0 specification (from www.usb.org), with supplements
      such as those for USB OTG and the various device classes.
      The USB specification has a good overview chapter, and USB
      peripherals conform to the widely known "Chapter 9".

    * Chip specifications for USB controllers.  Examples include
      host controllers (on PCs, servers, and more); peripheral
      controllers (in devices with Linux firmware, like printers or
      cell phones); and hard-wired peripherals like Ethernet adapters.

    * Specifications for other protocols implemented by USB peripheral
      functions.  Some are vendor-specific; others are vendor-neutral
      but just standardized outside of the www.usb.org team.

Here is a list of what each subdirectory here is, and what is contained in
them.

core/		- This is for the core USB host code, including the
		  usbfs files and the hub class driver ("khubd").

host/		- This is for USB host controller drivers.  This
		  includes UHCI, OHCI, EHCI, and others that might
		  be used with more specialized "embedded" systems.

gadget/		- This is for USB peripheral controller drivers and
		  the various gadget drivers which talk to them.


Individual USB driver directories.  A new driver should be added to the
first subdirectory in the list below that it fits into.

image/		- This is for still image drivers, like scanners or
		  digital cameras.
../input/	- This is for any driver that uses the input subsystem,
		  like keyboard, mice, touchscreens, tablets, etc.
../media/	- This is for multimedia drivers, like video cameras,
		  radios, and any other drivers that talk to the v4l
		  subsystem.
../net/		- This is for network drivers.
serial/		- This is for USB to serial drivers.
storage/	- This is for USB mass-storage drivers.
class/		- This is for all USB device drivers that do not fit
		  into any of the above categories, and work for a range
		  of USB Class specified devices. 
misc/		- This is for all USB device drivers that do not fit
		  into any of the above categories.