Paolo Abeni 0c4f121c0e mptcp: restore window probe ...

commit a824084b98 upstream.

Since commit 72377ab2d6 ("mptcp: more conservative check for zero
probes") the MPTCP-level zero window probe check is always disabled, as
the TCP-level write queue always contains at least the newly allocated
skb.

Refine the relevant check tacking in account that the above condition
and that such skb can have zero length.

Fixes: 72377ab2d6 ("mptcp: more conservative check for zero probes")
Cc: stable@vger.kernel.org
Reported-by: Geliang Tang <geliang@kernel.org>
Closes: https://lore.kernel.org/d0a814c364e744ca6b836ccd5b6e9146882e8d42.camel@kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Tested-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251028-net-mptcp-send-timeout-v1-3-38ffff5a9ec8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-11-13 15:33:55 -05:00

..

bpf.c

…

crypto_test.c

…

crypto.c

…

ctrl.c

mptcp: reset blackhole on success with non-loopback ifaces

2025-10-23 16:20:46 +02:00

diag.c

…

fastopen.c

…

Kconfig

…

Makefile

…

mib.c

…

mib.h

…

mptcp_diag.c

…

mptcp_pm_gen.c

…

mptcp_pm_gen.h

…

options.c

mptcp: tfo: record 'deny join id0' info

2025-09-25 11:13:43 +02:00

pm_netlink.c

mptcp: pm: in-kernel: C-flag: handle late ADD_ADDR

2025-11-02 22:15:22 +09:00

pm_userspace.c

…

pm.c

mptcp: pm: in-kernel: usable client side with C-flag

2025-10-19 16:34:04 +02:00

protocol.c

mptcp: restore window probe

2025-11-13 15:33:55 -05:00

protocol.h

mptcp: drop bogus optimization in __mptcp_check_push()

2025-11-13 15:33:55 -05:00

sched.c

…

sockopt.c

mptcp: sockopt: make sync_socket_options propagate SOCK_KEEPOPEN

2025-09-19 16:35:45 +02:00

subflow.c

mptcp: set remote_deny_join_id0 on SYN recv

2025-09-25 11:13:43 +02:00

syncookies.c

…

token_test.c

…

token.c

…