detect: SigMatchAppendSMToList can fail

[catenacyber]

Link to redmine ticket:
https://redmine.openinfosecfoundation.org/issues/6104

Describe changes:

• fixes buffer overflow in rules parsing
• fixes memory leak in parsing dcerpc.iface on OOM condition (if SigMatchAlloc returns NULL)

Replaces #9838 with better style

[codecov]

Codecov Report

Merging #9852 (7685efc) into master (90c1765) will decrease coverage by 0.02%.
The diff coverage is 78.36%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9852      +/-   ##
==========================================
- Coverage   82.47%   82.45%   -0.02%     
==========================================
  Files         973      973              
  Lines      273962   273410     -552     
==========================================
- Hits       225944   225438     -506     
+ Misses      48018    47972      -46     

Flag	Coverage Δ
fuzzcorpus	64.30% <70.97%> (-0.08%)	⬇️
suricata-verify	61.10% <53.56%> (+<0.01%)	⬆️
unittests	62.89% <49.86%> (+0.01%)	⬆️

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

[suricata-qa]

Information: QA ran without warnings.

Pipeline 16662

[victorjulien]

Merged in #9853, thanks!