Phil SutterandGreg Kroah-Hartman 2acc8d3f0a netfilter: conntrack: helper: Replace -EEXIST by -EBUSY ...

[ Upstream commit 54416fd767 ]

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 18:56:21 +02:00

..

ipset

netfilter: ipset: fix region locking in hash types

2025-05-18 08:24:05 +02:00

ipvs

ipvs: fix uninit-value for saddr in do_output_route4

2025-05-18 08:24:05 +02:00

core.c

netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core

2024-06-27 13:49:08 +02:00

Kconfig

…

Makefile

…

nf_bpf_link.c

bpf: Check netfilter ctx accesses are aligned

2025-08-15 12:08:57 +02:00

nf_conncount.c

netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()

2025-03-22 12:50:39 -07:00

nf_conntrack_acct.c

…

nf_conntrack_amanda.c

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nf_conntrack_bpf.c

netfilter, bpf: Adjust timeouts of non-confirmed CTs in bpf_ct_insert_entry()

2023-09-15 10:17:55 -07:00

nf_conntrack_broadcast.c

…

nf_conntrack_core.c

netfilter: nf_conntrack: fix crash due to removal of uninitialised entry

2025-07-24 08:53:19 +02:00

nf_conntrack_ecache.c

…

nf_conntrack_expect.c

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nf_conntrack_extend.c

netfilter: conntrack: fix extension size table

2023-09-13 21:57:50 +02:00

nf_conntrack_ftp.c

…

nf_conntrack_h323_asn1.c

netfilter: nf_conntrack_h323: Add protection for bmp length out of range

2024-03-15 10:48:19 -04:00

nf_conntrack_h323_main.c

…

nf_conntrack_h323_types.c

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nf_conntrack_helper.c

netfilter: conntrack: helper: Replace -EEXIST by -EBUSY

2025-09-09 18:56:21 +02:00

nf_conntrack_irc.c

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nf_conntrack_labels.c

…

nf_conntrack_netbios_ns.c

…

nf_conntrack_netlink.c

netfilter: ctnetlink: fix refcount leak on table dump

2025-08-28 16:28:14 +02:00

nf_conntrack_ovs.c

…

nf_conntrack_pptp.c

…

nf_conntrack_proto_dccp.c

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nf_conntrack_proto_generic.c

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nf_conntrack_proto_gre.c

…

nf_conntrack_proto_icmp.c

…

nf_conntrack_proto_icmpv6.c

…

nf_conntrack_proto_sctp.c

netfilter: conntrack: check SCTP_CID_SHUTDOWN_ACK for vtag setting in sctp_new

2024-03-01 13:34:51 +01:00

nf_conntrack_proto_tcp.c

netfilter: conntrack: correct window scaling with retransmitted SYN

2024-02-05 20:14:36 +00:00

nf_conntrack_proto_udp.c

…

nf_conntrack_proto.c

…

nf_conntrack_sane.c

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nf_conntrack_seqadj.c

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nf_conntrack_sip.c

…

nf_conntrack_snmp.c

…

nf_conntrack_standalone.c

netfilter: conntrack: Bound nf_conntrack sysctl writes

2025-06-04 14:42:00 +02:00

nf_conntrack_tftp.c

…

nf_conntrack_timeout.c

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nf_conntrack_timestamp.c

…

nf_dup_netdev.c

…

nf_flow_table_core.c

ipv6: introduce dst_rt6_info() helper

2024-12-14 19:59:35 +01:00

nf_flow_table_inet.c

netfilter: flowtable: validate vlan header

2024-08-29 17:33:49 +02:00

nf_flow_table_ip.c

ipv6: introduce dst_rt6_info() helper

2024-12-14 19:59:35 +01:00

nf_flow_table_offload.c

netfilter: flowtable: initialise extack before use

2024-08-29 17:33:19 +02:00

nf_flow_table_procfs.c

…

nf_hooks_lwtunnel.c

netfilter: fix undefined reference to 'netfilter_lwtunnel_*' when CONFIG_SYSCTL=n

2024-07-05 09:33:47 +02:00

nf_internals.h

netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core

2024-06-27 13:49:08 +02:00

nf_log_syslog.c

netfilter: propagate net to nf_bridge_get_physindev

2024-01-25 15:35:59 -08:00

nf_log.c

netfilter: nf_log: replace BUG_ON by WARN_ON_ONCE when putting logger

2024-02-05 20:14:36 +00:00

nf_nat_amanda.c

…

nf_nat_bpf.c

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nf_nat_core.c

netfilter: nf_nat: also check reverse tuple to obtain clashing entry

2025-06-19 15:28:34 +02:00

nf_nat_ftp.c

…

nf_nat_helper.c

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nf_nat_irc.c

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nf_nat_masquerade.c

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nf_nat_ovs.c

netfilter: nf_nat: fix action not being set for all ct states

2024-01-10 17:16:50 +01:00

nf_nat_proto.c

…

nf_nat_redirect.c

netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses

2023-11-20 11:59:37 +01:00

nf_nat_sip.c

…

nf_nat_tftp.c

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nf_queue.c

netfilter: propagate net to nf_bridge_get_physindev

2024-01-25 15:35:59 -08:00

nf_sockopt.c

…

nf_synproxy_core.c

…

nf_tables_api.c

netfilter: nf_tables: adjust lockdep assertions handling

2025-08-15 12:08:47 +02:00

nf_tables_core.c

netfilter: nf_tables: set transport offset from mac header for netdev/egress

2024-01-10 17:16:47 +01:00

nf_tables_offload.c

net: flow_dissector: Use 64bits for used_keys

2023-07-31 09:11:24 +01:00

nf_tables_trace.c

…

nfnetlink_acct.c

…

nfnetlink_cthelper.c

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nfnetlink_cttimeout.c

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nfnetlink_hook.c

…

nfnetlink_log.c

netfilter: nfnetlink_log: use proper helper for fetching physinif

2024-01-25 15:35:59 -08:00

nfnetlink_osf.c

netfilter: nfnetlink_osf: avoid OOB read

2023-09-06 18:07:49 +02:00

nfnetlink_queue.c

netfilter: nf_queue: drop packets with cloned unconfirmed conntracks

2024-08-29 17:33:19 +02:00

nfnetlink.c

…

nft_bitwise.c

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nft_byteorder.c

netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval()

2023-11-28 17:19:52 +00:00

nft_chain_filter.c

netfilter: nf_tables: honor table dormant flag from netdev release event path

2024-05-02 16:32:39 +02:00

nft_chain_nat.c

…

nft_chain_route.c

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nft_cmp.c

net: flow_dissector: Use 64bits for used_keys

2023-07-31 09:11:24 +01:00

nft_compat.c

netfilter: nf_tables: allow NFPROTO_INET in nft_(match/target)_validate()

2024-03-06 14:48:36 +00:00

nft_connlimit.c

netfilter: nf_tables: allow clone callbacks to sleep

2025-03-22 12:50:50 -07:00

nft_counter.c

netfilter: nft_counter: Use u64_stats_t for statistic.

2025-03-28 21:59:57 +01:00

nft_ct_fast.c

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nft_ct.c

netfilter: nft_ct: Use __refcount_inc() for per-CPU nft_ct_pcpu_template.

2025-03-22 12:50:37 -07:00

nft_dup_netdev.c

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nft_dynset.c

netfilter: nf_tables: allow clone callbacks to sleep

2025-03-22 12:50:50 -07:00

nft_exthdr.c

netfilter: nft_exthdr: fix offset with ipv4_find_option()

2025-03-22 12:50:39 -07:00

nft_fib_inet.c

…

nft_fib_netdev.c

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nft_fib.c

netfilter: nft_fib: allow from forward/input without iif selector

2024-06-12 11:12:58 +02:00

nft_flow_offload.c

netfilter: nft_flow_offload: update tcp state flags under lock

2025-02-08 09:52:03 +01:00

nft_fwd_netdev.c

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nft_hash.c

…

nft_immediate.c

netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx

2024-11-14 13:19:32 +01:00

nft_inner.c

netfilter: nft_inner: incorrect percpu area handling under softirq

2024-12-14 19:59:38 +01:00

nft_last.c

netfilter: nf_tables: allow clone callbacks to sleep

2025-03-22 12:50:50 -07:00

nft_limit.c

netfilter: nf_tables: allow clone callbacks to sleep

2025-03-22 12:50:50 -07:00

nft_log.c

…

nft_lookup.c

netfilter: nf_tables: missing iterator type in lookup walk

2024-09-30 16:25:13 +02:00

nft_masq.c

netfilter: nf_tables: use NLA_POLICY_MASK to test for valid flag options

2023-07-27 13:45:51 +02:00

nft_meta.c

netfilter: nft_inner: validate mandatory meta and payload

2024-06-21 14:38:34 +02:00

nft_nat.c

netfilter: nf_tables: validate NFPROTO_* family

2024-01-31 16:19:03 -08:00

nft_numgen.c

…

nft_objref.c

…

nft_osf.c

netfilter: nft_osf: refactor deprecated strncpy

2023-08-22 15:13:21 +02:00

nft_payload.c

netfilter: nft_payload: sanitize offset and length before calling skb_checksum()

2024-11-08 16:28:19 +01:00

nft_queue.c

…

nft_quota.c

netfilter: nft_quota: match correctly when the quota just depleted

2025-06-19 15:28:13 +02:00

nft_range.c

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nft_redir.c

netfilter: nf_tables: use NLA_POLICY_MASK to test for valid flag options

2023-07-27 13:45:51 +02:00

nft_reject_inet.c

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nft_reject_netdev.c

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nft_reject.c

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nft_rt.c

ipv6: introduce dst_rt6_info() helper

2024-12-14 19:59:35 +01:00

nft_set_bitmap.c

netfilter: nf_tables: restore set elements when delete set fails

2024-10-10 11:58:07 +02:00

nft_set_hash.c

netfilter: nft_set_hash: GC reaps elements with conncount for dynamic sets only

2025-04-10 14:37:39 +02:00

nft_set_pipapo_avx2.c

netfilter: nf_set_pipapo_avx2: fix initial map fill

2025-06-19 15:28:34 +02:00

nft_set_pipapo_avx2.h

…

nft_set_pipapo.c

netfilter: nf_tables: use timestamp to check for set element timeout

2025-03-22 12:50:50 -07:00

nft_set_pipapo.h

netfilter: nf_set_pipapo: fix initial map fill

2024-08-03 08:54:04 +02:00

nft_set_rbtree.c

netfilter: nf_tables: use timestamp to check for set element timeout

2025-03-22 12:50:50 -07:00

nft_socket.c

netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level

2024-12-14 19:59:34 +01:00

nft_synproxy.c

netfilter: nf_tables: validate NFPROTO_* family

2024-01-31 16:19:03 -08:00

nft_tproxy.c

netfilter: nf_tables: validate NFPROTO_* family

2024-01-31 16:19:03 -08:00

nft_tunnel.c

netfilter: nft_tunnel: fix geneve_opt dump

2025-06-19 15:28:18 +02:00

nft_xfrm.c

netfilter: nf_tables: validate NFPROTO_* family

2024-01-31 16:19:03 -08:00

utils.c

…

x_tables.c

netfilter: Fix use-after-free in get_info()

2024-11-08 16:28:19 +01:00

xt_addrtype.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_AUDIT.c

…

xt_bpf.c

…

xt_cgroup.c

…

xt_CHECKSUM.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_CLASSIFY.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_cluster.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_comment.c

…

xt_connbytes.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_connlabel.c

…

xt_connlimit.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_connmark.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_CONNSECMARK.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_conntrack.c

…

xt_cpu.c

…

xt_CT.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_dccp.c

…

xt_devgroup.c

…

xt_dscp.c

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xt_DSCP.c

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xt_ecn.c

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xt_esp.c

…

xt_hashlimit.c

…

xt_helper.c

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xt_hl.c

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xt_HL.c

…

xt_HMARK.c

…

xt_IDLETIMER.c

netfilter: IDLETIMER: Fix for possible ABBA deadlock

2024-12-19 18:11:32 +01:00

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 19:59:33 +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 01:58:29 +01:00

xt_MASQUERADE.c

…

xt_multiport.c

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xt_nat.c

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xt_NETMAP.c

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xt_nfacct.c

netfilter: xt_nfacct: don't assume acct name is null-terminated

2025-08-15 12:08:50 +02:00

xt_NFLOG.c

netfilter: xtables: fix typo causing some targets not to load on IPv6

2024-11-01 01:58:29 +01:00

xt_NFQUEUE.c

…

xt_osf.c

…

xt_owner.c

netfilter: xt_owner: Fix for unsafe access of sk->sk_socket

2023-12-13 18:45:10 +01:00

xt_physdev.c

netfilter: propagate net to nf_bridge_get_physindev

2024-01-25 15:35:59 -08:00

xt_pkttype.c

…

xt_policy.c

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xt_quota.c

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xt_rateest.c

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xt_RATEEST.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_realm.c

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xt_recent.c

netfilter: xt_recent: fix (increase) ipv6 literal buffer length

2023-11-20 11:59:36 +01:00

xt_REDIRECT.c

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xt_repldata.h

netfilter: xtables: refactor deprecated strncpy

2023-08-22 15:13:21 +02:00

xt_sctp.c

netfilter: xt_sctp: validate the flag_info count

2023-08-30 17:34:01 +02:00

xt_SECMARK.c

netfilter: xtables: avoid NFPROTO_UNSPEC where needed

2024-10-17 15:24:28 +02:00

xt_set.c

…

xt_socket.c

net: annotate data-races around sk->sk_mark

2023-07-29 18:13:41 +01:00

xt_state.c

…

xt_statistic.c

…

xt_string.c

…

xt_tcpmss.c

…

xt_TCPMSS.c

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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 01:58:29 +01:00

xt_u32.c

netfilter: xt_u32: validate user space input

2023-08-30 17:34:01 +02:00