r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000100)={{{@in=@empty, @in6=@loopback, 0x0, 0x0, 0x0, 0x0, 0xa}}, {{@in=@initdev={0xac, 0x1e, 0x0, 0x0}, 0x0, 0x3c}}}, 0x12d)