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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/net
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Eric Dumazet 04317a2471 tcp: avoid too many retransmit packets 
commit 97a9063518f198ec0adb2ecb89789de342bb8283 upstream.

If a TCP socket is using TCP_USER_TIMEOUT, and the other peer
retracted its window to zero, tcp_retransmit_timer() can
retransmit a packet every two jiffies (2 ms for HZ=1000),
for about 4 minutes after TCP_USER_TIMEOUT has 'expired'.

The fix is to make sure tcp_rtx_probe0_timed_out() takes
icsk->icsk_user_timeout into account.

Before blamed commit, the socket would not timeout after
icsk->icsk_user_timeout, but would use standard exponential
backoff for the retransmits.

Also worth noting that before commit e89688e3e9 ("net: tcp:
fix unexcepted socket die when snd_wnd is 0"), the issue
would last 2 minutes instead of 4.

Fixes: b701a99e43 ("tcp: Add tcp_clamp_rto_to_user_timeout() helper to improve accuracy")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Jon Maxwell <jmaxwell37@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20240710001402.2758273-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-07-18 13:07:40 +02:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p net/9p: fix uninit-value in p9_client_rpc() 2024-06-16 13:39:58 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
8021q vlan: skip nested type that is not IFLA_VLAN_QOS_MAPPING 2024-02-23 08:54:27 +01:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 15:17:37 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 15:17:35 +01:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:22:01 +02:00
batman-adv batman-adv: Don't accept TT entries for out-of-spec VIDs 2024-07-05 09:14:49 +02:00
bluetooth Bluetooth: L2CAP: Fix rejecting L2CAP_CONN_PARAM_UPDATE_REQ 2024-07-05 09:14:18 +02:00
bpf bpf: Set run context for rawtp test_run callback 2024-07-05 09:14:06 +02:00
bpfilter
…
bridge net: bridge: fix corrupted ethernet header on multicast-to-unicast 2024-05-17 11:50:58 +02:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:48:54 +01:00
can net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new 2024-07-05 09:14:48 +02:00
ceph libceph: use kernel_connect() 2023-10-19 23:05:36 +02:00
core net: fix rc7's __skb_datagram_iter() 2024-07-18 13:07:37 +02:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 15:13:53 +02:00
dccp Fix race for duplicate reqsk on identical SYN 2024-07-05 09:14:41 +02:00
dns_resolver keys, dns: Fix size check of V1 server-list header 2024-01-25 14:52:46 -08:00
dsa net: dsa: tag_sja1105: always prefer source port information from INCL_SRCPT 2024-06-16 13:39:54 +02:00
ethernet ethernet: Add helper for assigning packet type when dest address does not match device address 2024-05-02 16:24:49 +02:00
ethtool ethtool: netlink: do not return SQI value if link is down 2024-07-18 13:07:38 +02:00
hsr hsr: Handle failures in module init 2024-03-26 18:21:36 -04:00
ieee802154 net: drop nopreempt requirement on sock_prot_inuse_add() 2024-07-05 09:14:08 +02:00
ife net: sched: ife: fix potential use-after-free 2024-01-05 15:13:29 +01:00
ipv4 tcp: avoid too many retransmit packets 2024-07-18 13:07:40 +02:00
ipv6 tcp: Fix data races around icsk->icsk_af_ops. 2024-07-05 09:14:51 +02:00
iucv net/iucv: Avoid explicit cpumask var allocation on stack 2024-07-05 09:14:43 +02:00
kcm net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-26 18:21:23 -04:00
key net: af_key: fix sadb_x_filter validation 2023-08-26 14:23:32 +02:00
l2tp net l2tp: drop flow hash on forward 2024-05-17 11:50:48 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 14:38:53 +02:00
lapb
…
llc llc: call sock_orphan() at release time 2024-02-23 08:54:54 +01:00
mac80211 wifi: mac80211: correctly parse Spatial Reuse Parameter Set element 2024-07-05 09:14:05 +02:00
mac802154 mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-04-10 16:18:39 +02:00
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-25 11:58:59 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp mptcp: pm: update add_addr counters after connect 2024-07-05 09:14:23 +02:00
ncsi net/ncsi: Fix the multi thread manner of NCSI driver 2024-07-05 09:14:06 +02:00
netfilter netfilter: nf_tables: unconditionally flush pending work before notifier 2024-07-18 13:07:31 +02:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2024-01-25 14:52:33 -08:00
netlink net: drop nopreempt requirement on sock_prot_inuse_add() 2024-07-05 09:14:08 +02:00
netrom netrom: Fix a memory leak in nr_heartbeat_expiry() 2024-07-05 09:14:29 +02:00
nfc nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() 2024-06-16 13:39:48 +02:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-05-17 11:50:48 +02:00
openvswitch openvswitch: Set the skbuff pkt_type for proper pmtud support. 2024-06-16 13:39:47 +02:00
packet af_packet: avoid a false positive warning in packet_setsockopt() 2024-07-05 09:14:26 +02:00
phonet phonet: fix rtm_phonet_notify() skb allocation 2024-05-17 11:50:58 +02:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:36:37 +01:00
qrtr net: qrtr: ns: Fix module refcnt 2024-06-16 13:39:33 +02:00
rds net/rds: fix possible cp null dereference 2024-04-10 16:19:37 +02:00
rfkill net: rfkill: gpio: set GPIO direction 2024-01-05 15:13:34 +01:00
rose net/rose: fix races in rose_kill_by_device() 2024-01-05 15:13:29 +01:00
rxrpc rxrpc: Fix response to PING RESPONSE ACKs to a dead call 2024-02-23 08:54:58 +01:00
sched net/sched: Fix UAF when resolving a clash 2024-07-18 13:07:38 +02:00
sctp sctp: prefer struct_size over open coded arithmetic 2024-07-18 13:07:27 +02:00
smc net: drop nopreempt requirement on sock_prot_inuse_add() 2024-07-05 09:14:08 +02:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 19:17:11 +01:00
sunrpc SUNRPC: return proper error from gss_wrap_req_priv 2024-07-05 09:14:16 +02:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: force a dst refcount before doing decryption 2024-07-05 09:14:30 +02:00
tls tls: fix missing memory barrier in tls_init 2024-06-16 13:39:48 +02:00
unix af_unix: Read with MSG_PEEK loops if the first unread byte is OOB 2024-07-05 09:14:19 +02:00
vmw_vsock virtio/vsock: fix logic which reduces credit update messages 2024-01-25 14:52:38 -08:00
wireless wifi: cfg80211: pmsr: use correct nla_get_uX functions 2024-07-05 09:14:05 +02:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:21:23 -04:00
xdp net: drop nopreempt requirement on sock_prot_inuse_add() 2024-07-05 09:14:08 +02:00
xfrm net: fix __dst_negative_advice() race 2024-06-16 13:39:59 +02:00
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
compat.c
…
devres.c
…
socket.c net: Save and restore msg_namelen in sock_sendmsg 2024-01-15 18:51:16 +01:00
sysctl_net.c
…