5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso pablo@netfilter.org
commit 7315dc1e122c85ffdfc8defffbb8f8b616c2eb1a upstream.
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: 5f68718b34a5 ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/netfilter/nf_tables_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -9256,7 +9256,7 @@ static void nft_set_commit_update(struct list_for_each_entry_safe(set, next, set_update_list, pending_update) { list_del_init(&set->pending_update);
- if (!set->ops->commit) + if (!set->ops->commit || set->dead) continue;
set->ops->commit(set);