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linux/net/ipv4
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Eric Dumazet 6d9175b955 tcp: exit if nothing to retransmit on RTO timeout 
Two upstream commits squashed together for v4.14 stable :

 commit 88f8598d0a upstream.

  Previously TCP only warns if its RTO timer fires and the
  retransmission queue is empty, but it'll cause null pointer
  reference later on. It's better to avoid such catastrophic failure
  and simply exit with a warning.

Squashed with "tcp: refactor tcp_retransmit_timer()" :

 commit 0d580fbd2d upstream.

  It appears linux-4.14 stable needs a backport of commit
  88f8598d0a ("tcp: exit if nothing to retransmit on RTO timeout")

  Since tcp_rtx_queue_empty() is not in pre 4.15 kernels,
  let's refactor tcp_retransmit_timer() to only use tcp_rtx_queue_head()

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-17 20:38:43 +01:00
..
netfilter
netfilter: masquerade: don't flush all conntracks if only one address deleted on device
2019-11-20 18:00:52 +01:00
af_inet.c
gso_segment: Reset skb->mac_len after modifying network header
2018-09-29 03:06:00 -07:00
ah4.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2017-06-23 14:17:31 -04:00
arp.c
arp: fix arp_filter on l3slave devices
2018-04-12 12:32:22 +02:00
cipso_ipv4.c
net: avoid use IPCB in cipso_v4_error
2019-03-13 14:03:09 -07:00
datagram.c
inet: stop leaking jiffies on the wire
2019-11-10 11:25:37 +01:00
devinet.c
ipv4: don't set IPv6 only flags to IPv4 addresses
2019-07-31 07:28:44 +02:00
esp4_offload.c
esp: Fix GRO when the headers not fully in the linear part of the skb.
2018-02-25 11:07:46 +01:00
esp4.c
esp4: add length check for UDP encapsulation
2019-05-25 18:25:34 +02:00
fib_frontend.c
ipv4: Return error for RTA_VIA attribute
2019-03-13 14:03:09 -07:00
fib_lookup.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_notifier.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_rules.c
net: fib_rules: Implement notification logic in core
2017-08-03 15:35:59 -07:00
fib_semantics.c
ipv4: Fix table id reference in fib_sync_down_addr
2019-11-12 19:17:49 +01:00
fib_trie.c
net: ipv4: Fix memory leak in network namespace dismantle
2019-01-31 08:13:42 +01:00
fou.c
net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
2019-04-27 09:35:34 +02:00
gre_demux.c
ip_gre: fix parsing gre header in ipgre_err
2019-11-20 18:00:02 +01:00
gre_offload.c
net: fix use-after-free in GRO with ESP
2018-07-22 14:28:44 +02:00
icmp.c
net: Add __icmp_send helper.
2019-03-13 14:03:09 -07:00
igmp.c
igmp: fix memory leak in igmpv3_del_delrec()
2019-07-31 07:28:44 +02:00
inet_connection_sock.c
inet: make sure to grab rcu_read_lock before using ireq->ireq_opt
2018-10-18 09:16:21 +02:00
inet_diag.c
inet_diag: fix reporting cgroup classid and fallback to priority
2019-02-27 10:08:07 +01:00
inet_fragment.c
net: IP defrag: encapsulate rbtree defrag code into callable functions
2019-04-27 09:35:40 +02:00
inet_hashtables.c
net: annotate accesses to sk->sk_incoming_cpu
2019-11-10 11:25:23 +01:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-05-16 10:10:24 +02:00
inetpeer.c
net: ipv4: use a dedicated counter for icmp_v4 redirect packets
2019-02-23 09:06:42 +01:00
ip_forward.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_fragment.c
net: IP defrag: encapsulate rbtree defrag code into callable functions
2019-04-27 09:35:40 +02:00
ip_gre.c
ip_gre: fix parsing gre header in ipgre_err
2019-11-20 18:00:02 +01:00
ip_input.c
vrf: check accept_source_route on the original netdevice
2019-04-17 08:37:48 +02:00
ip_options.c
vrf: check accept_source_route on the original netdevice
2019-04-17 08:37:48 +02:00
ip_output.c
ipv4: ip_do_fragment: Preserve skb_iif during fragmentation
2019-05-08 07:20:43 +02:00
ip_sockglue.c
ip: on queued skb use skb_header_pointer instead of pskb_may_pull
2019-01-23 08:09:47 +01:00
ip_tunnel_core.c
ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
2019-08-04 09:32:03 +02:00
ip_tunnel.c
ip_tunnel: Make none-tunnel-dst tunnel port work with lwtunnel
2019-12-05 15:37:56 +01:00
ip_vti.c
vti4: ipip tunnel deregistration fixes.
2019-05-25 18:25:34 +02:00
ipcomp.c
…
ipconfig.c
ipconfig: Correctly initialise ic_nameservers
2018-08-03 07:50:39 +02:00
ipip.c
ipip: only increase err_count for some certain type icmp in ipip_err
2017-10-27 23:43:31 +09:00
ipmr.c
ipv4: Fix potential Spectre v1 vulnerability
2019-01-09 17:14:42 +01:00
Kconfig
ip: update policy routing config help
2017-10-12 22:57:11 -07:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netfilter.c
…
ping.c
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
2018-05-19 10:20:23 +02:00
proc.c
tcp: tcp_fragment() should apply sane memory limits
2019-06-17 19:52:44 +02:00
protocol.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
raw_diag.c
net: don't warn in inet diag when IPV6 is disabled
2019-10-05 12:47:38 +02:00
raw.c
ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
2019-07-03 13:16:01 +02:00
route.c
ipv4: Return -ENETUNREACH if we can't create route but saddr is valid
2019-10-29 09:17:00 +01:00
syncookies.c
tcp: handle inet_csk_reqsk_queue_add() failures
2019-03-19 13:13:23 +01:00
sysctl_net_ipv4.c
tcp: add tcp_min_snd_mss sysctl
2019-06-17 19:52:44 +02:00
tcp_bbr.c
tcp_bbr: fix bw probing to raise in-flight data for very small BDPs
2018-08-03 07:50:44 +02:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cdg.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cong.c
tcp: fix tcp_set_congestion_control() use from bpf hook
2019-07-31 07:28:46 +02:00
tcp_cubic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_dctcp.c
tcp: Ensure DCTCP reacts to losses
2019-04-17 08:37:47 +02:00
tcp_diag.c
tcp_diag: report TCP MD5 signing keys and addresses
2017-09-01 18:38:09 -07:00
tcp_fastopen.c
net: add rb_to_skb() and other rb tree helpers
2018-09-19 22:43:47 +02:00
tcp_highspeed.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_htcp.c
tcp: fix cwnd undo in Reno and HTCP congestion controls
2017-08-06 21:25:10 -07:00
tcp_hybla.c
…
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-05-30 07:52:06 +02:00
tcp_input.c
tcp: fix tcp_ecn_withdraw_cwr() to clear TCP_ECN_QUEUE_CWR
2019-09-19 09:08:02 +02:00
tcp_ipv4.c
inet: stop leaking jiffies on the wire
2019-11-10 11:25:37 +01:00
tcp_lp.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
tcp_metrics.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_minisocks.c
tcp: do not restart timewait timer on rst reception
2018-09-15 09:45:25 +02:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-04-26 11:02:13 +02:00
tcp_offload.c
gso: validate gso_type in GSO handlers
2018-01-31 14:03:47 +01:00
tcp_output.c
tcp: fix SNMP under-estimation on failed retransmission
2019-12-17 20:38:29 +01:00
tcp_probe.c
tcp: remove redundant argument from tcp_rcv_established()
2017-07-24 17:28:12 -07:00
tcp_rate.c
tcp: invalidate rate samples during SACK reneging
2018-01-02 20:31:09 +01:00
tcp_recovery.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
tcp: exit if nothing to retransmit on RTO timeout
2019-12-17 20:38:43 +01:00
tcp_ulp.c
tcp, ulp: add alias for all ulp modules
2018-09-15 09:45:29 +02:00
tcp_vegas.c
tcp: fix under-evaluated ssthresh in TCP Vegas
2017-12-25 14:26:30 +01:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_westwood.c
tcp: Revert "tcp: remove CA_ACK_SLOWPATH"
2017-08-30 11:20:08 -07:00
tcp_yeah.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp.c
net: use skb_queue_empty_lockless() in busy poll contexts
2019-11-10 11:25:35 +01:00
tunnel4.c
…
udp_diag.c
udp: fix rx queue len reported by diag and proc interface
2018-06-26 08:06:28 +08:00
udp_impl.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udp_offload.c
net: fix use-after-free in GRO with ESP
2018-07-22 14:28:44 +02:00
udp_tunnel.c
net: add infrastructure to un-offload UDP tunnel port
2017-07-24 13:52:59 -07:00
udp.c
net: use skb_queue_empty_lockless() in poll() handlers
2019-11-10 11:25:34 +01:00
udplite.c
…
xfrm4_input.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-11-04 14:52:37 +01:00
xfrm4_mode_beet.c
networking: make skb_pull & friends return void pointers
2017-06-16 11:48:39 -04:00
xfrm4_mode_transport.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-11-04 14:52:37 +01:00
xfrm4_mode_tunnel.c
xfrm: Add encapsulation header offsets while SKB is not encrypted
2017-04-14 10:07:39 +02:00
xfrm4_output.c
xfrm: Add an IPsec hardware offloading API
2017-04-14 10:06:10 +02:00
xfrm4_policy.c
xfrm4: Fix uninitialized memory read in _decode_session4
2019-05-25 18:25:34 +02:00
xfrm4_protocol.c
…
xfrm4_state.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm4_tunnel.c
…