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linux-yocto/net/netfilter
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Phil Sutter c79730e337 netfilter: conntrack: helper: Replace -EEXIST by -EBUSY 
[ Upstream commit 54416fd76770bd04fc3c501810e8d673550bab26 ]

The helper registration return value is passed-through by module_init
callbacks which modprobe confuses with the harmless -EEXIST returned
when trying to load an already loaded module.

Make sure modprobe fails so users notice their helper has not been
registered and won't work.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Fixes: 12f7a50533 ("netfilter: add user-space connection tracking helper infrastructure")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-09 18:50:18 +02:00
..
ipset netfilter: ipset: fix region locking in hash types 2025-05-18 08:20:35 +02:00
ipvs ipvs: properly dereference pe in ip_vs_add_service 2025-05-02 07:44:22 +02:00
core.c netfilter: let reset rules clean out conntrack entries 2024-03-06 14:38:46 +00:00
Kconfig netfilter: nf_flow_table: count pending offload workqueue tasks 2024-04-27 17:05:24 +02:00
Makefile netfilter: nf_flow_table: count pending offload workqueue tasks 2024-04-27 17:05:24 +02:00
nf_conncount.c netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree() 2025-04-10 14:31:49 +02:00
nf_conntrack_acct.c
nf_conntrack_amanda.c
nf_conntrack_broadcast.c
nf_conntrack_core.c netfilter: conntrack: clamp maximum hashtable size to INT_MAX 2025-01-23 17:15:50 +01:00
nf_conntrack_ecache.c
nf_conntrack_expect.c
nf_conntrack_extend.c
nf_conntrack_ftp.c
nf_conntrack_h323_asn1.c netfilter: nf_conntrack_h323: Add protection for bmp length out of range 2024-03-15 10:48:15 -04:00
nf_conntrack_h323_main.c
nf_conntrack_h323_types.c
nf_conntrack_helper.c netfilter: conntrack: helper: Replace -EEXIST by -EBUSY 2025-09-09 18:50:18 +02:00
nf_conntrack_irc.c netfilter: nf_conntrack_irc: Tighten matching on DCC message 2022-09-28 11:11:46 +02:00
nf_conntrack_labels.c
nf_conntrack_netbios_ns.c
nf_conntrack_netlink.c netfilter: ctnetlink: fix refcount leak on table dump 2025-08-28 16:24:16 +02:00
nf_conntrack_pptp.c
nf_conntrack_proto_dccp.c netfilter: conntrack: dccp: copy entire header to stack buffer, not just basic one 2023-07-23 13:46:56 +02:00
nf_conntrack_proto_generic.c
nf_conntrack_proto_gre.c
nf_conntrack_proto_icmp.c
nf_conntrack_proto_icmpv6.c netfilter: conntrack: set icmpv6 redirects as RELATED 2022-12-31 13:14:14 +01:00
nf_conntrack_proto_sctp.c netfilter: conntrack: check SCTP_CID_SHUTDOWN_ACK for vtag setting in sctp_new 2024-03-01 13:21:45 +01:00
nf_conntrack_proto_tcp.c netfilter: let reset rules clean out conntrack entries 2024-03-06 14:38:46 +00:00
nf_conntrack_proto_udp.c
nf_conntrack_proto.c
nf_conntrack_sane.c
nf_conntrack_seqadj.c
nf_conntrack_sip.c netfilter: nf_conntrack_sip: fix the ct_sip_parse_numerical_param() return value. 2023-07-23 13:46:56 +02:00
nf_conntrack_snmp.c
nf_conntrack_standalone.c netfilter: conntrack: Bound nf_conntrack sysctl writes 2025-06-04 14:37:57 +02:00
nf_conntrack_tftp.c
nf_conntrack_timeout.c
nf_conntrack_timestamp.c
nf_dup_netdev.c
nf_flow_table_core.c netfilter: nf_flow_table: count pending offload workqueue tasks 2024-04-27 17:05:24 +02:00
nf_flow_table_inet.c netfilter: flowtable: validate vlan header 2024-09-04 13:23:34 +02:00
nf_flow_table_ip.c netfilter: flowtable: validate vlan header 2024-09-04 13:23:34 +02:00
nf_flow_table_offload.c netfilter: flowtable: initialise extack before use 2024-09-04 13:23:19 +02:00
nf_flow_table_procfs.c netfilter: nf_flow_table: count pending offload workqueue tasks 2024-04-27 17:05:24 +02:00
nf_hooks_lwtunnel.c
nf_internals.h
nf_log_syslog.c
nf_log.c netfilter: nf_log: replace BUG_ON by WARN_ON_ONCE when putting logger 2024-02-23 08:54:54 +01:00
nf_nat_amanda.c
nf_nat_core.c netfilter: make function op structures const 2024-03-06 14:38:46 +00:00
nf_nat_ftp.c
nf_nat_helper.c
nf_nat_irc.c
nf_nat_masquerade.c
nf_nat_proto.c
nf_nat_redirect.c netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses 2023-11-20 11:08:29 +01:00
nf_nat_sip.c
nf_nat_tftp.c
nf_queue.c
nf_sockopt.c
nf_synproxy_core.c
nf_tables_api.c netfilter: nf_tables: adjust lockdep assertions handling 2025-08-28 16:24:08 +02:00
nf_tables_core.c
nf_tables_offload.c
nf_tables_trace.c
nfnetlink_acct.c
nfnetlink_cthelper.c
nfnetlink_cttimeout.c
nfnetlink_hook.c Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
nfnetlink_log.c netfilter: nfnetlink_log: silence bogus compiler warning 2023-11-08 17:26:47 +01:00
nfnetlink_osf.c netfilter: nfnetlink_osf: avoid OOB read 2023-09-19 12:23:00 +02:00
nfnetlink_queue.c netfilter: nf_queue: drop packets with cloned unconfirmed conntracks 2024-09-04 13:23:19 +02:00
nfnetlink.c netfilter: nfnetlink: skip error delivery on batch in case of ENOMEM 2023-06-21 15:59:16 +02:00
nft_bitwise.c
nft_byteorder.c netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() 2023-11-28 16:56:24 +00:00
nft_chain_filter.c netfilter: nf_tables: honor table dormant flag from netdev release event path 2024-05-02 16:24:46 +02:00
nft_chain_nat.c
nft_chain_route.c
nft_cmp.c
nft_compat.c netfilter: nf_tables: allow NFPROTO_INET in nft_(match/target)_validate() 2024-03-06 14:38:46 +00:00
nft_connlimit.c netfilter: nf_tables: allow clone callbacks to sleep 2024-08-19 05:45:50 +02:00
nft_counter.c netfilter: nft_counter: Synchronize nft_counter_reset() against reader. 2024-09-04 13:23:32 +02:00
nft_ct.c netfilter: nft_ct: Use __refcount_inc() for per-CPU nft_ct_pcpu_template. 2025-04-10 14:31:48 +02:00
nft_dup_netdev.c
nft_dynset.c netfilter: nf_tables: allow clone callbacks to sleep 2024-08-19 05:45:50 +02:00
nft_exthdr.c netfilter: nft_exthdr: fix offset with ipv4_find_option() 2025-04-10 14:31:49 +02:00
nft_fib_inet.c
nft_fib_netdev.c
nft_fib.c netfilter: nf_tables: fix 'exist' matching on bigendian arches 2023-12-20 15:17:33 +01:00
nft_flow_offload.c netfilter: nft_flow_offload: update tcp state flags under lock 2025-03-13 12:49:59 +01:00
nft_fwd_netdev.c
nft_hash.c
nft_immediate.c netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx 2025-05-22 14:08:27 +02:00
nft_last.c netfilter: nf_tables: allow clone callbacks to sleep 2024-08-19 05:45:50 +02:00
nft_limit.c netfilter: nf_tables: allow clone callbacks to sleep 2024-08-19 05:45:50 +02:00
nft_log.c
nft_lookup.c netfilter: nf_tables: missing iterator type in lookup walk 2024-10-17 15:10:41 +02:00
nft_masq.c netfilter: nft_masq: correct length for loading protocol registers 2023-03-22 13:31:23 +01:00
nft_meta.c netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() 2023-11-28 16:56:24 +00:00
nft_nat.c netfilter: nf_tables: validate NFPROTO_* family 2024-02-23 08:54:29 +01:00
nft_numgen.c
nft_objref.c netfilter: nf_tables: report use refcount overflow 2023-08-16 18:22:03 +02:00
nft_osf.c netfilter: nf_tables: use the correct get/put helpers 2023-11-28 16:56:24 +00:00
nft_payload.c netfilter: nft_payload: sanitize offset and length before calling skb_checksum() 2024-11-08 16:25:53 +01:00
nft_queue.c
nft_quota.c netfilter: nft_quota: match correctly when the quota just depleted 2025-06-27 11:05:12 +01:00
nft_range.c
nft_redir.c netfilter: nft_redir: use struct nf_nat_range2 throughout and deduplicate eval call-backs 2023-11-20 11:08:29 +01:00
nft_reject_inet.c
nft_reject_netdev.c
nft_reject.c
nft_rt.c netfilter: nf_tables: validate NFPROTO_* family 2024-02-23 08:54:29 +01:00
nft_set_bitmap.c netfilter: nf_tables: drop map element references from preparation phase 2023-07-23 13:46:44 +02:00
nft_set_hash.c netfilter: nft_set_hash: GC reaps elements with conncount for dynamic sets only 2025-04-10 14:32:04 +02:00
nft_set_pipapo_avx2.c netfilter: nf_set_pipapo_avx2: fix initial map fill 2025-06-27 11:05:18 +01:00
nft_set_pipapo_avx2.h
nft_set_pipapo.c netfilter: nf_tables: missing iterator type in lookup walk 2024-10-17 15:10:41 +02:00
nft_set_pipapo.h netfilter: nf_set_pipapo: fix initial map fill 2024-08-19 05:45:07 +02:00
nft_set_rbtree.c netfilter: nf_tables: use timestamp to check for set element timeout 2024-08-19 05:45:50 +02:00
nft_socket.c netfilter: nft_socket: fix sk refcount leaks 2024-10-17 15:10:37 +02:00
nft_synproxy.c netfilter: nf_tables: validate NFPROTO_* family 2024-02-23 08:54:29 +01:00
nft_tproxy.c netfilter: nf_tables: validate NFPROTO_* family 2024-02-23 08:54:29 +01:00
nft_tunnel.c netfilter: nft_tunnel: fix geneve_opt dump 2025-06-27 11:05:13 +01:00
nft_xfrm.c netfilter: nf_tables: validate NFPROTO_* family 2024-02-23 08:54:29 +01:00
utils.c
x_tables.c netfilter: Fix use-after-free in get_info() 2024-11-08 16:25:53 +01:00
xt_addrtype.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_AUDIT.c
xt_bpf.c
xt_cgroup.c
xt_CHECKSUM.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_CLASSIFY.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_cluster.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_comment.c
xt_connbytes.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_connlabel.c
xt_connlimit.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_connmark.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_CONNSECMARK.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_conntrack.c
xt_cpu.c
xt_CT.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_dccp.c
xt_devgroup.c
xt_dscp.c
xt_DSCP.c
xt_ecn.c
xt_esp.c
xt_hashlimit.c
xt_helper.c
xt_hl.c
xt_HL.c
xt_HMARK.c
xt_IDLETIMER.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_ipcomp.c
xt_iprange.c
xt_ipvs.c
xt_l2tp.c
xt_LED.c netfilter: x_tables: fix LED ID check in led_tg_check() 2024-12-14 19:51:26 +01:00
xt_length.c
xt_limit.c
xt_LOG.c
xt_mac.c
xt_mark.c netfilter: xtables: fix typo causing some targets not to load on IPv6 2024-11-01 01:52:36 +01:00
xt_MASQUERADE.c
xt_multiport.c
xt_nat.c
xt_NETMAP.c
xt_nfacct.c netfilter: xt_nfacct: don't assume acct name is null-terminated 2025-08-28 16:24:09 +02:00
xt_NFLOG.c netfilter: xtables: fix typo causing some targets not to load on IPv6 2024-11-01 01:52:36 +01:00
xt_NFQUEUE.c
xt_osf.c netfilter: nfnetlink_osf: fix module autoload 2023-06-28 10:29:49 +02:00
xt_owner.c netfilter: xt_owner: Fix for unsafe access of sk->sk_socket 2023-12-13 18:36:37 +01:00
xt_physdev.c
xt_pkttype.c
xt_policy.c
xt_quota.c
xt_rateest.c
xt_RATEEST.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_realm.c
xt_recent.c netfilter: xt_recent: fix (increase) ipv6 literal buffer length 2023-11-20 11:08:29 +01:00
xt_REDIRECT.c netfilter: nft_redir: use struct nf_nat_range2 throughout and deduplicate eval call-backs 2023-11-20 11:08:29 +01:00
xt_repldata.h
xt_sctp.c netfilter: xt_sctp: validate the flag_info count 2023-09-19 12:22:49 +02:00
xt_SECMARK.c netfilter: xtables: avoid NFPROTO_UNSPEC where needed 2024-10-17 15:11:56 +02:00
xt_set.c
xt_socket.c
xt_state.c
xt_statistic.c
xt_string.c
xt_tcpmss.c
xt_TCPMSS.c
xt_TCPOPTSTRIP.c
xt_tcpudp.c
xt_TEE.c
xt_time.c
xt_TPROXY.c
xt_TRACE.c netfilter: xtables: fix typo causing some targets not to load on IPv6 2024-11-01 01:52:36 +01:00
xt_u32.c netfilter: xt_u32: validate user space input 2023-09-19 12:22:49 +02:00