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[ Upstream commit270a8a297f] This is fixing flow offload for UDP traffic where packets only follow one single direction. The flow_offload_fixup_tcp() mechanism works fine in case that the offloaded entry remains in SYN_RECV state, given sequence tracking is reset and that conntrack handles syn+ack packets as a retransmission, ie. sES + synack => sIG for reply traffic. Fixes:a3c90f7a23("netfilter: nf_tables: flow offload expression") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 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.
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.