Fix the compilation error of 24-hide

[zer0-1s]

Description

Fixes # (issue)

Fix 'libbpf: failed to find BTF info for global/extern symbol' since uninitialized global variables

#143

Type of change

• [ ✓ ] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Test A
• Test B

Test Configuration:

• Ubuntu 20.04
• Linux version 5.15.0-124-generic
• clang version 10.0.0-4ubuntu1

Checklist

• [ ✓ ] My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• [ ✓] My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings