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commit36d5b29132upstream. When doing lookups for rules on the same batch by using its ID, a rule from a different chain can be used. If a rule is added to a chain but tries to be positioned next to a rule from a different chain, it will be linked to chain2, but the use counter on chain1 would be the one to be incremented. When looking for rules by ID, use the chain that was used for the lookup by name. The chain used in the context copied to the transaction needs to match that same chain. That way, struct nft_rule does not need to get enlarged with another member. Fixes:1a94e38d25("netfilter: nf_tables: add NFTA_RULE_ID attribute") Fixes:75dd48e2e4("netfilter: nf_tables: Support RULE_ID reference in new rule") Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Cc: <stable@vger.kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.