This is a note to let you know that I've just added the patch titled netfilter: nf_tables: check if catch-all set element is active in next generation to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: netfilter-nf_tables-check-if-catch-all-set-element-is-active-in-next-generation.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Date: Fri, 12 Jan 2024 23:28:45 +0100 Subject: netfilter: nf_tables: check if catch-all set element is active in next generation From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7 upstream. When deactivating the catch-all set element, check the state in the next generation that represents this transaction. This bug uncovered after the recent removal of the element busy mark a2dd0233cbc4 ("netfilter: nf_tables: remove busy mark and gc batch API"). Fixes: aaa31047a6d2 ("netfilter: nftables: add catch-all set element support") Cc: stable@xxxxxxxxxxxxxxx Reported-by: lonial con <kongln9170@xxxxxxxxx> Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -6034,7 +6034,7 @@ static int nft_setelem_catchall_deactiva list_for_each_entry(catchall, &set->catchall_list, list) { ext = nft_set_elem_ext(set, catchall->elem); - if (!nft_is_active(net, ext)) + if (!nft_is_active_next(net, ext)) continue; kfree(elem->priv); Patches currently in stable-queue which might be from pablo@xxxxxxxxxxxxx are queue-5.15/netfilter-nf_tables-check-if-catch-all-set-element-is-active-in-next-generation.patch queue-5.15/netfilter-nf_tables-mark-newset-as-dead-on-transacti.patch