r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, &(0x7f0000000140)={&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000001200)=0x40)