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[ Upstream commit ca0776571d3163bd03b3e8c9e3da936abfaecbf6 ] Currently, there is no overflow-check with memdup_user(). Use the new function memdup_array_user() instead of memdup_user() for duplicating the user-space array safely. Suggested-by: David Airlie <airlied@redhat.com> Signed-off-by: Philipp Stanner <pstanner@redhat.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Zack Rusin <zackr@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230920123612.16914-5-pstanner@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.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.
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.