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All file descriptors that are truncatable need to have the Landlock access rights set correctly on the file's Landlock security blob. This is also the case for files that are opened by other means than open(2). Test coverage for security/landlock is 94.7% of 838 lines according to gcc/gcov-11. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20221018182216.301684-10-gnoack3000@gmail.com [mic: Add test coverage in commit message] Signed-off-by: Mickaël Salaün <mic@digikod.net>
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.