[  709.032398][    C1] net_ratelimit: 2 callbacks suppressed
[  709.032405][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  709.562157][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  709.891184][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  710.259704][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  710.624757][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  772.815285][  T111] kmemleak: 1930 new suspected memory leaks (see /sys/kernel/debug/kmemleak)