r0 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_SIOCDELRT(r0, 0x890c, &(0x7f00000023c0)={0x0, @rc={0x1f, @none}, @in, @generic={0x0, "08a9df6f648993838a052be16e5a"}})