linux-yocto/net
Paolo Abeni ae15506024 mptcp: fix duplicate reset on fastclose
The CI reports sporadic failures of the fastclose self-tests. The root
cause is a duplicate reset, not carrying the relevant MPTCP option.
In the failing scenario the bad reset is received by the peer before
the fastclose one, preventing the reception of the latter.

Indeed there is window of opportunity at fastclose time for the
following race:

  mptcp_do_fastclose
    __mptcp_close_ssk
      __tcp_close()
        tcp_set_state() [1]
        tcp_send_active_reset() [2]

After [1] the stack will send reset to in-flight data reaching the now
closed port. Such reset may race with [2].

Address the issue explicitly sending a single reset on fastclose before
explicitly moving the subflow to close status.

Fixes: d21f834855 ("mptcp: use fastclose on more edge scenarios")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/596
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-6-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19 20:07:15 -08:00
..
6lowpan
9p 9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN 2025-09-19 16:34:51 +09:00
802
8021q net: vlan: sync VLAN features with lower device 2025-10-31 17:42:35 -07:00
appletalk
atm net: atm: fix memory leak in atm_register_sysfs when device_register fail 2025-09-04 09:53:44 +02:00
ax25 ax25: properly unshare skbs in ax25_kiss_rcv() 2025-09-03 17:06:30 -07:00
batman-adv Here is a batman-adv bugfix: 2025-10-27 18:00:54 -07:00
bluetooth Bluetooth: hci_event: Fix not handling PA Sync Lost event 2025-11-11 08:55:18 -05:00
bpf bpf: Do not disable preemption in bpf_test_run(). 2025-10-17 11:29:35 -07:00
bridge net: bridge: fix MST static key usage 2025-11-06 07:32:17 -08:00
caif caif: Replace memset(0) + strscpy() with strscpy_pad() 2025-08-12 14:08:56 -07:00
can can: j1939: add missing calls in NETDEV_UNREGISTER notification handler 2025-10-13 21:26:31 +02:00
ceph Some messenger improvements from Eric and Max, a patch to address the 2025-10-10 11:30:19 -07:00
core net: core: prevent NULL deref in generic_hwtstamp_ioctl_lower() 2025-11-13 17:23:21 -08:00
dcb Revert "Documentation: net: add flow control guide and document ethtool API" 2025-10-01 09:48:21 +02:00
devlink devlink: rate: Unset parent pointer in devl_rate_nodes_destroy 2025-11-18 17:12:21 -08:00
dns_resolver
dsa net: dsa: tag_brcm: do not mark link local traffic as offloaded 2025-11-10 17:04:19 -08:00
ethernet ethernet: Extend device_get_mac_address() to use NVMEM 2025-09-15 18:34:08 -07:00
ethtool Revert "Documentation: net: add flow control guide and document ethtool API" 2025-10-01 09:48:21 +02:00
handshake net/handshake: Fix memory leak in tls_handshake_accept() 2025-11-10 17:53:47 -08:00
hsr hsr: Follow standard for HSRv0 supervision frames 2025-11-13 15:55:04 +01:00
ieee802154
ife
ipv4 ipsec-2025-11-18 2025-11-18 17:58:44 -08:00
ipv6 xfrm: Determine inner GSO type from packet inner protocol 2025-10-30 11:52:31 +01:00
iucv net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers 2025-08-28 13:14:50 +02:00
kcm net: kcm: Fix race condition in kcm_unattach() 2025-08-13 18:18:33 -07:00
key
l2tp l2tp: do not use sock_hold() in pppol2tp_session_get_sock() 2025-08-27 17:16:13 -07:00
l3mdev
lapb
llc
mac80211 wifi: mac80211: skip rate verification for not captured PSDUs 2025-11-11 09:25:17 +01:00
mac802154
mctp net: mctp: fix typo in comment 2025-09-08 17:47:57 -07:00
mpls
mptcp mptcp: fix duplicate reset on fastclose 2025-11-19 20:07:15 -08:00
ncsi
netfilter netfilter: nft_ct: add seqadj extension for natted connections 2025-10-29 14:47:59 +01:00
netlabel audit: add record for multiple task security contexts 2025-08-30 10:15:30 -04:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-09-11 17:40:13 -07:00
netrom
nfc net: nfc: nci: Add parameter validation for packet data 2025-09-30 10:27:14 +02:00
nsh
openvswitch net: openvswitch: remove never-working support for setting nsh fields 2025-11-14 18:13:24 -08:00
packet net: af_packet: Use hrtimer to do the retire operation 2025-09-11 18:40:06 -07:00
phonet net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers 2025-08-28 13:14:50 +02:00
psample
psp net: psp: don't assume reply skbs will have a socket 2025-10-03 10:23:50 -07:00
qrtr
rds net: WQ_PERCPU added to alloc_workqueue users 2025-09-22 17:40:30 -07:00
rfkill net: replace use of system_wq with system_percpu_wq 2025-09-22 17:40:30 -07:00
rose net: rose: fix a typo in rose_clear_routes() 2025-08-27 17:27:52 -07:00
rxrpc net: WQ_PERCPU added to alloc_workqueue users 2025-09-22 17:40:30 -07:00
sched net_sched: limit try_bulk_dequeue_skb() batches 2025-11-11 17:56:50 -08:00
sctp sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto 2025-11-10 16:21:05 -08:00
shaper
smc net/smc: fix mismatch between CLC header and proposal 2025-11-10 17:52:09 -08:00
strparser strparser: Fix signed/unsigned mismatch bug 2025-11-07 18:17:16 -08:00
sunrpc nfsd-6.18 fixes: 2025-11-12 18:41:01 -08:00
switchdev
tipc tipc: Fix use-after-free in tipc_mon_reinit_self(). 2025-11-10 18:14:40 -08:00
tls net: tls: Cancel RX async resync request on rcd_delta overflow 2025-10-29 18:32:18 -07:00
unix af_unix: Read sk_peek_offset() again after sleeping in unix_stream_read_generic(). 2025-11-18 19:19:09 -08:00
vmw_vsock vsock: fix lock inversion in vsock_assign_transport() 2025-10-23 16:07:58 +02:00
wireless wifi: cfg80211: add an hrtimer based delayed work item 2025-10-28 14:56:30 +01:00
x25
xdp xsk: Harden userspace-supplied xdp_desc validation 2025-10-10 10:07:48 -07:00
xfrm ipsec-2025-11-18 2025-11-18 17:58:44 -08:00
compat.c
devres.c
Kconfig dibs: Create drivers/dibs 2025-09-23 11:13:21 +02:00
Kconfig.debug
Makefile psp: base PSP device support 2025-09-18 12:32:06 +02:00
socket.c Networking changes for 6.18. 2025-10-02 15:17:01 -07:00
sysctl_net.c