Some instructions in a binary do not belong to a function, or, IDA does not manage to recover one. See for example the red addresses in the below screen shot.
Yet, one can right-click such 'function-less' addresses and selct
Create function from the menu (see below screenshot).
Are there any side effects of creating a function from 'function-less' instructions? For example, does it change instructions, symbols, variables, etc.? Does it change IDA-generated xrefs and thus has an effects on a static control flow analysis?
I am asking because I have to work with an algorithm that can only process instructions which belongs to a function. My idea was to go through the binary and keep creating functions until all 'function-less' instructions belong to a function.
Do you see any possible disadvantages of this approach?