6fb741076a
The probe handler_data was being allocated with __get_free_pages() for no reason I could find. The error path was using kfree(). Since other things are happily using kmalloc() in the probe path, switch to kmalloc() entirely. This fixes the error path mismatch and will avoid issues with CONFIG_HARDENED_USERCOPY_PAGESPAN=y. Reported-by: Mihai Donțu <mihai.dontu@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Mario Limonciello <Mario.limonciello@dell.com> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart (VMware) <dvhart@infradead.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.