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[ Upstream commitc9bd26513b] nft -f -<<EOF add table ip t add table ip t { flags dormant; } add chain ip t c { type filter hook input priority 0; } add table ip t EOF Triggers a splat from nf core on next table delete because we lose track of right hook register state: WARNING: CPU: 2 PID: 1597 at net/netfilter/core.c:501 __nf_unregister_net_hook RIP: 0010:__nf_unregister_net_hook+0x41b/0x570 nf_unregister_net_hook+0xb4/0xf0 __nf_tables_unregister_hook+0x160/0x1d0 [..] The above should have table in *active* state, but in fact no hooks were registered. Reject on/off/on games rather than attempting to fix this. Fixes:179d9ba555("netfilter: nf_tables: fix table flag updates") Reported-by: "Lee, Cherie-Anne" <cherie.lee@starlabs.sg> Cc: Bing-Jhong Billy Jheng <billy@starlabs.sg> Cc: info@starlabs.sg Signed-off-by: Florian Westphal <fw@strlen.de> 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.
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.