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Date: Tue, 2 Jul 2024 21:14:46 +0800 From: Edward Adam Davis <eadavis@...com> To: syzbot+4fd66a69358fc15ae2ad@...kaller.appspotmail.com Cc: linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com Subject: Re: [syzbot] [netfilter?] KASAN: slab-use-after-free Read in nf_tables_trans_destroy_work Unbalanced increase and decrease of use in the table #syz test: net-next 1c5fc27bc48a diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 70d0bad029fd..b77b764955a0 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -1498,6 +1498,7 @@ static int nf_tables_newtable(struct sk_buff *skb, const struct nfnl_info *info, if (err < 0) goto err_trans; + nft_use_inc_restore(&table->use); list_add_tail_rcu(&table->list, &nft_net->tables); return 0; err_trans:
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