r0 = socket$inet_tcp(0x2, 0x1, 0x0)
getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, &(0x7f00000039c0)={&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000003a00)=0x40)