r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$sock_inet6_SIOCDELRT(r0, 0x890c, &(0x7f0000000240)={@private0, @private2, @empty, 0x0, 0xfff9, 0x0, 0x0, 0x0, 0x1310018})