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commitbcfcb7f9b4upstream. The driver was checking the number of endpoints of the first alternate setting instead of the current one, something which could be used by a malicious device (or USB descriptor fuzzer) to trigger a NULL-pointer dereference. Fixes:1afca2b66a("Input: add Pegasus Notetaker tablet driver") Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Martin Kepplinger <martink@posteo.de> Acked-by: Vladis Dronov <vdronov@redhat.com> Link: https://lore.kernel.org/r/20191210113737.4016-2-johan@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.