Understanding function prologue with multiple function calls

Question

Let's take the following example I have from a single function:

first_function:
    pushq   %rbp
    movq    %rsp, %rbp
    movq $2, -8(%rbp)
    movq $4, -16(%rbp)
    ...
    pop %rbp
    ret

If we look at the stack before the ..., it gives us:

>>> x/4g $rbp-16

0x7fffffffe410: 0x0000000000000004  0x0000000000000002
0x7fffffffe420: 0x0000000000000000  0x00000000004000bd

Or for me, an easier way to visualize it is:

+----------------+--------------------+---------------------------+
| 0x7fffffffe420 | 0x00000000004000bd | # function return address |
+----------------+--------------------+---------------------------+
| 0x7fffffffe418 | 0x0000000000000000 | # from push %rbp          |
+----------------+--------------------+---------------------------+
| 0x7fffffffe410 | 0x0000000000000002 | # from mov $2, -8(%rbp)   |
+----------------+--------------------+---------------------------+
| 0x7fffffffe408 | 0x0000000000000004 | # from mov $4, -16(%rbp)  |
+----------------+--------------------+--------------------------

My question then is wouldn't a sub-function call (for example, if I called another function call in the ... section) possibly clobber all the two variables I've added above (2, and 4)?