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commita9666c1caeupstream. Unsafe global rkey is considered dangerous because it exposes memory registered for all memory in the system. Only users with a QP on the same PD can use the rkey, and generally those QPs will already know the value. However, out of caution, do not expose the value to unprivleged users on the local system. Require CAP_NET_ADMIN instead. Cc: <stable@vger.kernel.org> # 4.16 Fixes:29cf1351d4("RDMA/nldev: provide detailed PD information") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.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.