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netfilter: nf_tables: skip bound chain on rule flush

Wander Lairson Costa requested to merge walac/centos-stream-9:j2538-nf_tables into main

JIRA: https://issues.redhat.com/browse/RHEL-2538

commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8

Author: Pablo Neira Ayuso pablo@netfilter.org

Date: Thu Jul 20 09:17:21 2023 +0200

netfilter: nf_tables: skip bound chain on rule flush

Skip bound chain when flushing table rules, the rule that owns this
chain releases these objects.

Otherwise, the following warning is triggered:

  WARNING: CPU: 2 PID: 1217 at net/netfilter/nf_tables_api.c:2013 nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]
  CPU: 2 PID: 1217 Comm: chain-flush Not tainted 6.1.39 #1
  RIP: 0010:nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]

Fixes: d0e2c7de92c7 ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Reported-by: Kevin Rich <kevinrich1337@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>

Signed-off-by: Wander Lairson Costa wander@redhat.com

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