Comment 10 for bug 1854362

@cyphermox (and security team)

Reading the code this is typical mis-use in mixing uint64_t and size_t on the assumption that size_t is 64 bit - so code compiles fine on 64bit but fails on 32bit.

I've fixed numerous issues of this type in other code bases so I'll take a look - the return type of tcmu_lba_to_byte is uint64_t which is the correct approach - size_t usage needs to be switch to match.