r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r0, 0x0)
getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, &(0x7f0000000140)={&(0x7f0000fff000/0x1000)=nil, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000180)=0x40)