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netfilter: nf_tables: drop module reference after updating chain

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Otherwise the module reference counter is leaked.

Fixes b9703ed44ffb ("netfilter: nf_tables: support for adding new devices to an existing netdev chain")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2023-06-14 23:20:18 +02:00
parent e26d3009ef
commit 043d2acf57
1 changed files with 2 additions and 0 deletions
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2
net/netfilter/nf_tables_api.c
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@ -2667,6 +2667,8 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
nft_trans_basechain(trans) = basechain;
INIT_LIST_HEAD(&nft_trans_chain_hooks(trans));
list_splice(&hook.list, &nft_trans_chain_hooks(trans));
if (nla[NFTA_CHAIN_HOOK])
module_put(hook.type->owner);
nft_trans_commit_list_add_tail(ctx->net, trans);