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Andrii Nakryiko bafd95893a libbpf: Fix negative FD close() in xsk_setup_xdp_prog() BugLink: https://bugs.launchpad.net/bugs/1858428 [ Upstream commit `9656b346b2` ] Fix issue reported by static analysis (Coverity). If bpf_prog_get_fd_by_id() fails, xsk_lookup_bpf_maps() will fail as well and clean-up code will attempt close() with fd=-1. Fix by checking bpf_prog_get_fd_by_id() return result and exiting early. Fixes: `10a13bb40e` ("libbpf: remove qidconf and better support external bpf programs.") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191107054059.313884-1-andriin@fb.com Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Seth Forshee <seth.forshee@canonical.com>		2020-01-06 08:16:16 -06:00
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drivers	xen/gntdev: Use select for DMA_SHARED_BUFFER	2020-01-06 08:16:15 -06:00
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include	net: avoid potential false sharing in neighbor related code	2020-01-06 08:16:15 -06:00
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sound	ALSA: timer: Limit max amount of slave instances	2020-01-06 08:16:12 -06:00
tools	libbpf: Fix negative FD close() in xsk_setup_xdp_prog()	2020-01-06 08:16:16 -06:00
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README

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.