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[ Upstream commit90e5b3462e] When flushing, individual set elements are disabled in the next generation via the ->flush callback. Catchall elements are not disabled. This is incorrect and may lead to double-deactivations of catchall elements which then results in memory leaks: WARNING: CPU: 1 PID: 3300 at include/net/netfilter/nf_tables.h:1172 nft_map_deactivate+0x549/0x730 CPU: 1 PID: 3300 Comm: nft Not tainted 6.5.0-rc5+ #60 RIP: 0010:nft_map_deactivate+0x549/0x730 [..] ? nft_map_deactivate+0x549/0x730 nf_tables_delset+0xb66/0xeb0 (the warn is due to nft_use_dec() detecting underflow). Fixes:aaa31047a6("netfilter: nftables: add catch-all set element support") Reported-by: lonial con <kongln9170@gmail.com> 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.
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