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netfilter: nf_tables: skip set commit for deleted/destroyed sets

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NFT_MSG_DELSET deactivates all elements in the set, skip
set->ops->commit() to avoid the unnecessary clone (for the pipapo case)
as well as the sync GC cycle, which could deactivate again expired
elements in such set.

Fixes: 5f68718b34 ("netfilter: nf_tables: GC transaction API to avoid race with control plane")
Reported-by: Kevin Rich <kevinrich1337@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2023-12-19 19:44:49 +01:00
parent 0ae8e4cca7
commit 7315dc1e12
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nf_tables_api.c
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@ -9887,7 +9887,7 @@ static void nft_set_commit_update(struct list_head *set_update_list)
list_for_each_entry_safe(set, next, set_update_list, pending_update) { list_for_each_entry_safe(set, next, set_update_list, pending_update) {
list_del_init(&set->pending_update); list_del_init(&set->pending_update);
if (!set->ops->commit) if (!set->ops->commit || set->dead)
continue; continue;
set->ops->commit(set); set->ops->commit(set);