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5f9238530970f2993b23dd67fdaffc552a2d2e98
linux/net/ipv4
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Eric Dumazet 5f92385309 tcp: fix __tcp_close() to only send RST when required 
If the receive queue contains payload that was already
received, __tcp_close() can send an unexpected RST.

Refine the code to take tp->copied_seq into account,
as we already do in tcp recvmsg().

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20250903084720.1168904-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04 19:13:41 -07:00
..
netfilter
netfilter: nf_reject: remove unneeded exports
2025-09-02 15:28:17 +02:00
af_inet.c
net: Retire DCCP socket.
2025-04-11 18:58:10 -07:00
ah4.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
arp.c
net: set net.core.rmem_max and net.core.wmem_max to 4 MB
2025-08-20 19:35:00 -07:00
bpf_tcp_ca.c
tcp: Pass flags to __tcp_send_ack
2025-03-17 13:56:38 +00:00
cipso_ipv4.c
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
datagram.c
net: dst: annotate data-races around dst->obsolete
2025-07-02 14:32:29 -07:00
devinet.c
ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
2025-09-03 16:58:44 -07:00
esp4_offload.c
xfrm: Add an inbound percpu state cache.
2024-10-29 11:56:18 +01:00
esp4.c
tcp: Don't pass hashinfo to socket lookup helpers.
2025-08-25 17:53:35 -07:00
fib_frontend.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
fib_lookup.h
…
fib_notifier.c
net: do not acquire rtnl in fib_seq_sum()
2024-10-11 15:35:05 -07:00
fib_rules.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
fib_semantics.c
net: s/dev_get_flags/netif_get_flags/
2025-07-18 17:27:47 -07:00
fib_trie.c
ipv4: fib: Move fib_valid_key_len() to rtm_to_fib_config().
2025-03-03 15:04:11 -08:00
fou_bpf.c
ip_tunnel: convert __be16 tunnel flags to bitmaps
2024-04-01 10:49:28 +01:00
fou_core.c
fou: fix initialization of grc
2024-09-09 17:21:47 -07:00
fou_nl.c
netlink: specs: fou: change local-v6/peer-v6 check
2025-09-03 15:16:49 -07:00
fou_nl.h
net: ynl: prefix uAPI header include with uapi/
2023-05-26 10:30:14 +01:00
gre_demux.c
net: ip_gre: Fix spelling mistake "demultiplexor" -> "demultiplexer"
2025-04-24 18:20:40 -07:00
gre_offload.c
net: gro: rename skb_gro_header_hard()
2024-03-05 13:30:11 +01:00
icmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-09-04 13:33:00 -07:00
igmp_internal.h
netlink: support dumping IPv4 multicast addresses
2025-02-11 11:26:53 +01:00
igmp.c
ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]
2025-07-02 14:32:30 -07:00
inet_connection_sock.c
tcp: Remove sk->sk_prot->orphan_count.
2025-09-01 12:52:09 -07:00
inet_diag.c
inet_diag: avoid cache line misses in inet_diag_bc_sk()
2025-08-29 19:29:24 -07:00
inet_fragment.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
inet_hashtables.c
tcp: Remove sk->sk_prot->orphan_count.
2025-09-01 12:52:09 -07:00
inet_timewait_sock.c
tcp: Remove timewait_sock_ops.twsk_destructor().
2025-08-25 17:53:35 -07:00
inetpeer.c
inetpeer: use EXPORT_IPV6_MOD[_GPL]()
2025-02-14 13:09:39 -08:00
ip_forward.c
net: fix IPSTATS_MIB_OUTFORWDATAGRAMS increment after fragment check
2023-10-13 09:58:45 -07:00
ip_fragment.c
ipv4: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
ip_gre.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
ip_input.c
net: ipv4: allow directed broadcast routes to use dst hint
2025-08-25 16:07:16 -07:00
ip_options.c
net: Switch to skb_dstref_steal/skb_dstref_restore for ip_route_input callers
2025-08-19 17:54:35 -07:00
ip_output.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
ip_sockglue.c
Merge tag 'net-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-01-22 08:28:57 -08:00
ip_tunnel_core.c
net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()
2025-06-17 18:18:44 -07:00
ip_tunnel.c
net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()
2025-06-17 18:18:44 -07:00
ip_vti.c
ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]
2025-07-02 14:32:30 -07:00
ipcomp.c
xfrm: delete x->tunnel as we delete x
2025-07-08 13:28:27 +02:00
ipconfig.c
net: ipconfig: convert timeouts to secs_to_jiffies()
2025-07-09 19:25:01 -07:00
ipip.c
ipv4: ip_tunnel: Convert ip_tunnel_delete_nets() callers to ->exit_rtnl().
2025-04-14 17:08:42 -07:00
ipmr_base.c
ipmr: do not call mr_mfc_uses_dev() for unres entries
2025-01-23 07:08:13 -08:00
ipmr.c
ipv4: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
Kconfig
net: Retire DCCP socket.
2025-04-11 18:58:10 -07:00
Makefile
bpfilter: remove bpfilter
2024-01-04 10:23:10 -08:00
metrics.c
net: remove NULL-pointer net parameter in ip_metrics_convert
2024-06-05 10:06:00 +01:00
netfilter.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
netlink.c
…
nexthop.c
net: When removing nexthops, don't call synchronize_net if it is not necessary
2025-08-19 17:50:33 -07:00
ping.c
inet: ping: use EXPORT_IPV6_MOD[_GPL]()
2025-09-01 13:15:14 -07:00
proc.c
tcp: add LINUX_MIB_BEYOND_WINDOW
2025-07-14 18:41:42 -07:00
protocol.c
…
raw_diag.c
inet_diag: change inet_diag_bc_sk() first argument
2025-08-29 19:29:24 -07:00
raw.c
inet: raw: add drop_counters to raw sockets
2025-08-28 13:14:50 +02:00
route.c
ipv4: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
syncookies.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
sysctl_net_ipv4.c
tcp: add tcp_rto_max_ms sysctl
2025-02-11 13:08:00 +01:00
tcp_ao.c
net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals
2024-11-03 12:10:11 -08:00
tcp_bbr.c
tcp: Add new args for cong_control in tcp_congestion_ops
2024-05-02 16:26:56 -07:00
tcp_bic.c
…
tcp_bpf.c
bpf: Fix wrong copied_seq calculation
2025-01-29 13:32:23 -08:00
tcp_cdg.c
tcp: cdg: remove redundant __GFP_NOWARN
2025-08-12 14:05:43 -07:00
tcp_cong.c
tcp: only release congestion control if it has been initialized
2024-10-31 18:22:48 -07:00
tcp_cubic.c
tcp_cubic: fix incorrect HyStart round start detection
2025-01-20 12:26:41 +00:00
tcp_dctcp.c
tcp: helpers for ECN mode handling
2025-03-17 13:54:11 +00:00
tcp_dctcp.h
tcp: Pass flags to __tcp_send_ack
2025-03-17 13:56:38 +00:00
tcp_diag.c
inet_diag: change inet_diag_bc_sk() first argument
2025-08-29 19:29:24 -07:00
tcp_fastopen.c
tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()
2025-08-29 19:36:32 -07:00
tcp_highspeed.c
…
tcp_htcp.c
tcp: Use clamp() in htcp_alpha_update()
2024-08-06 12:16:25 -07:00
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
net: add sk_drops_skbadd() helper
2025-08-28 13:14:50 +02:00
tcp_ipv4.c
tcp: Remove sk->sk_prot->orphan_count.
2025-09-01 12:52:09 -07:00
tcp_lp.c
tcp: rename tcp_time_stamp() to tcp_time_stamp_ts()
2023-10-23 09:35:01 +01:00
tcp_metrics.c
tcp_metrics: use dst_dev_net_rcu()
2025-08-29 19:36:32 -07:00
tcp_minisocks.c
tcp: Remove timewait_sock_ops.twsk_destructor().
2025-08-25 17:53:35 -07:00
tcp_nv.c
…
tcp_offload.c
tcp: Don't pass hashinfo to socket lookup helpers.
2025-08-25 17:53:35 -07:00
tcp_output.c
tcp: annotate data-races in tcp_req_diag_fill()
2025-08-29 19:29:24 -07:00
tcp_plb.c
prandom: remove prandom_u32_max()
2022-12-20 03:13:45 +01:00
tcp_rate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-28 13:02:01 -07:00
tcp_recovery.c
tcp: update the outdated ref draft-ietf-tcpm-rack
2025-07-08 09:01:52 -07:00
tcp_scalable.c
…
tcp_sigpool.c
net/tcp_sigpool: Use nested-BH locking for sigpool_scratch.
2024-06-24 16:41:22 -07:00
tcp_timer.c
tcp: annotate data-races around icsk->icsk_probes_out
2025-08-25 16:20:59 -07:00
tcp_ulp.c
net/ulp: use consistent error code when blocking ULP
2023-01-19 09:26:16 -08:00
tcp_vegas.c
…
tcp_vegas.h
…
tcp_veno.c
…
tcp_westwood.c
…
tcp_yeah.c
…
tcp.c
tcp: fix __tcp_close() to only send RST when required
2025-09-04 19:13:41 -07:00
tunnel4.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00
udp_bpf.c
bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
2023-03-03 17:25:15 +01:00
udp_diag.c
inet_diag: change inet_diag_bc_sk() first argument
2025-08-29 19:29:24 -07:00
udp_impl.h
udp: move udp_memory_allocated into net_aligned_data
2025-07-02 14:22:02 -07:00
udp_offload.c
udp: also consider secpath when evaluating ipsec use for checksumming
2025-08-07 08:07:15 +02:00
udp_tunnel_core.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
udp_tunnel_nic.c
udp_tunnel: remove rtnl_lock dependency
2025-06-18 18:53:51 -07:00
udp_tunnel_stub.c
…
udp.c
net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers
2025-08-28 13:14:50 +02:00
udplite.c
udp: move udp_memory_allocated into net_aligned_data
2025-07-02 14:22:02 -07:00
xfrm4_input.c
xfrm: Set transport header to fix UDP GRO handling
2025-07-02 09:19:56 +02:00
xfrm4_output.c
ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]
2025-07-02 14:32:30 -07:00
xfrm4_policy.c
ipv4: Convert ->flowi4_tos to dscp_t.
2025-08-26 17:34:31 -07:00
xfrm4_protocol.c
ipv4: Convert ip_route_input_noref() to dscp_t.
2024-10-03 16:21:21 -07:00
xfrm4_state.c
…
xfrm4_tunnel.c
net: fill in MODULE_DESCRIPTION()s for ipv4 modules
2024-02-09 14:12:02 -08:00