r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x48, &(0x7f0000000100)={0x0, 0x4, 0x0, 0x0, 0x0, [@private1, @private0]}, 0x28)