提交 dbc47736 编写于 作者: P Pablo Neira Ayuso 提交者: Jialin Zhang

netfilter: nf_tables: unbind non-anonymous set if rule construction fails

mainline inclusion
from mainline-v6.4
commit 3e70489721b6c870252c9082c496703677240f53
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I7H68N
CVE: CVE-2023-3117

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e70489721b6c870252c9082c496703677240f53

--------------------------------

Otherwise a dangling reference to a rule object that is gone remains
in the set binding list.

Fixes: 26b5a571 ("netfilter: nf_tables: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain")
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: NLu Wei <luwei32@huawei.com>
Signed-off-by: NJialin Zhang <zhangjialin11@huawei.com>
上级 af739b3b
......@@ -4561,6 +4561,8 @@ void nf_tables_deactivate_set(const struct nft_ctx *ctx, struct nft_set *set,
nft_set_trans_unbind(ctx, set);
if (nft_set_is_anonymous(set))
nft_deactivate_next(ctx->net, set);
else
list_del_rcu(&binding->list);
set->use--;
break;
......
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