general/cppcheck: Address cppcheck memory related errors

[jlucovsky]

Continuation of #9866

Address cppcheck reported memory leak/misuse errors. See the redmine issue for the cppcheck command that uncovered the issues.

Issue: 6527

Link to redmine ticket: 6527

Updates:

• Fix issue with using assert; converted to BUG_ON

Provide values to any of the below to override the defaults.

To use a pull request use a branch name like pr/N where N is the
pull request number.

Alternatively, SV_BRANCH may also be a link to an
OISF/suricata-verify pull-request.

SV_REPO=
SV_BRANCH=
SU_REPO=
SU_BRANCH=
LIBHTP_REPO=
LIBHTP_BRANCH=

[codecov]

Codecov Report

Merging #9891 (a97f34d) into master (d005fff) will decrease coverage by 0.10%.
The diff coverage is 72.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9891      +/-   ##
==========================================
- Coverage   82.45%   82.36%   -0.10%     
==========================================
  Files         972      972              
  Lines      273057   273063       +6     
==========================================
- Hits       225156   224906     -250     
- Misses      47901    48157     +256     

Flag	Coverage Δ
fuzzcorpus	64.23% <72.00%> (-0.14%)	⬇️
suricata-verify	61.04% <12.00%> (-0.05%)	⬇️
unittests	62.91% <12.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

[jlucovsky]

Continued in #9892