r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @dev, 0x2}, 0x1c)
getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, &(0x7f0000000240)={&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000280)=0x40)