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Since41f2c7c342("net/sched: act_ct: Fix promotion of offloaded unreplied tuple"), flowtable GC pushes back flows with IPS_SEEN_REPLY back to classic path in every run, ie. every second. This is because of a new check for NF_FLOW_HW_ESTABLISHED which is specific of sched/act_ct. In Netfilter's flowtable case, NF_FLOW_HW_ESTABLISHED never gets set on and IPS_SEEN_REPLY is unreliable since users decide when to offload the flow before, such bit might be set on at a later stage. Fix it by adding a custom .gc handler that sched/act_ct can use to deal with its NF_FLOW_HW_ESTABLISHED bit. Fixes:41f2c7c342("net/sched: act_ct: Fix promotion of offloaded unreplied tuple") Reported-by: Vladimir Smelhaus <vl.sm@email.cz> Reviewed-by: Paul Blakey <paulb@nvidia.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.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.