Commit 6eaf41e8 authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso Committed by Florian Westphal
Browse files

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: d0e2c7de ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Reported-by: default avatarKevin Rich <kevinrich1337@gmail.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
parent 751d460c

net/netfilter/nf_tables_api.c

+2 −0
Original line number Diff line number Diff line
@@ -4087,6 +4087,8 @@ static int nf_tables_delrule(struct sk_buff *skb, const struct nfnl_info *info, 
		list_for_each_entry(chain, &table->chains, list) {

			if (!nft_is_active_next(net, chain))

				continue;

			if (nft_chain_is_bound(chain))

				continue;



			ctx.chain = chain;

			err = nft_delrule_by_chain(&ctx);