[  740.259817][    C0] net_ratelimit: 2 callbacks suppressed
[  740.259823][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  741.413737][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  742.327436][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  742.924933][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  803.687093][  T110] kmemleak: 1960 new suspected memory leaks (see /sys/kernel/debug/kmemleak)