Paolo Abeni 5e15395f6d mptcp: fix ack generation for fallback msk ... mptcp_cleanup_rbuf() needs to know the last most recent, mptcp-level rcv_wnd sent, and such information is tracked into the msk->old_wspace field, updated at ack transmission time by mptcp_write_options(). Fallback socket do not add any mptcp options, such helper is never invoked, and msk->old_wspace value remain stale. That in turn makes ack generation at recvmsg() time quite random. Address the issue ensuring mptcp_write_options() is invoked even for fallback sockets, and just update the needed info in such a case. The issue went unnoticed for a long time, as mptcp currently overshots the fallback socket receive buffer autotune significantly. It is going to change in the near future. Fixes: e3859603ba ("mptcp: better msk receive window updates") Cc: stable@vger.kernel.org Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/594 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-v1-1-806d3781c95f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-11-19 20:07:14 -08:00
..
6lowpan	net: replace ND_PRINTK with dynamic debug	2025-07-10 15:27:32 -07:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-07-24 11:10:46 -07:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-07-24 11:10:46 -07:00
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	net: s/dev_get_flags/netif_get_flags/	2025-07-18 17:27:47 -07:00
mptcp	mptcp: fix ack generation for fallback msk	2025-11-19 20:07:14 -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	net/x25: Remove unused x25_terminate_link()	2025-07-14 17:19:13 -07:00
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