Newly committed rolling functions to master branch suffers from memory leaks, as detected by our nightly GL CI pipeline.
I briefly had a look at it and noticed that some free(ptr) where missing. Not sure if it is the only reason.
https://rdatatable.gitlab.io/data.table/web/checks/check_results_data.table.html

As the issue is likely to strike back after merging
#7272
and fresh attempts of those
#5576
#5682

I think it make sense to address it once those 3 are merged.

Last one, rolling median, could eventually have other memory errors than the rest, due to it's implementation:
#5692