From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> commit b53c116642502b0c85ecef78bff4f826a7dd4145 upstream. Report the element that causes problems via netlink extended ACK for set element commands. Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/netfilter/nf_tables_api.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5769,8 +5769,10 @@ static int nf_tables_getsetelem(struct s nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) { err = nft_get_set_elem(&ctx, set, attr); - if (err < 0) + if (err < 0) { + NL_SET_BAD_ATTR(extack, attr); break; + } } return err; @@ -6589,8 +6591,10 @@ static int nf_tables_newsetelem(struct s nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) { err = nft_add_set_elem(&ctx, set, attr, info->nlh->nlmsg_flags); - if (err < 0) + if (err < 0) { + NL_SET_BAD_ATTR(extack, attr); return err; + } } if (nft_net->validate_state == NFT_VALIDATE_DO) @@ -6866,8 +6870,10 @@ static int nf_tables_delsetelem(struct s nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) { err = nft_del_setelem(&ctx, set, attr); - if (err < 0) + if (err < 0) { + NL_SET_BAD_ATTR(extack, attr); break; + } } return err; } Patches currently in stable-queue which might be from kroah.com@xxxxxxxxxxxxxxx are queue-5.15/netfilter-nf_tables-bail-out-if-stateful-expression-provides-no-.clone.patch queue-5.15/pci-dpc-fix-use-after-free-on-concurrent-dpc-and-hot-removal.patch queue-5.15/netfilter-nf_tables-set-element-extended-ack-reporting-support.patch queue-5.15/mptcp-fix-nl-pm-announced-address-accounting.patch queue-5.15/mptcp-distinguish-rcv-vs-sent-backup-flag-in-requests.patch queue-5.15/mptcp-pm-fix-backup-support-in-signal-endpoints.patch queue-5.15/netfilter-nf_tables-prefer-nft_chain_validate.patch queue-5.15/mptcp-mib-count-mpj-with-backup-flag.patch queue-5.15/selftests-mptcp-join-validate-backup-in-mpj.patch queue-5.15/netfilter-nf_tables-allow-clone-callbacks-to-sleep.patch queue-5.15/mptcp-export-local_address.patch queue-5.15/mptcp-pm-only-set-request_bkup-flag-when-sending-mp_prio.patch queue-5.15/mptcp-fix-bad-rcvpruned-mib-accounting.patch queue-5.15/netfilter-nf_tables-use-timestamp-to-check-for-set-element-timeout.patch