Memory sanitizer fires on snort

[mike-at-trout-software]

The memory sanitizer fires when we run snort (at least with the test scripts), it also does this when run without any of our own inspectors.

This can either happen as a total failure in running:

.../inspectors/dhcp_monitor$ make
sh3 -o dhcp_monitor.so -i inspector.cc 
---- TEST_dhcp> pcap $moddir/pcaps/dhcp_clean.pcap
[stderr]
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer:DEADLYSIGNAL
AddressSanitizer:DEADLYSIGNAL
Test Failure: tests/dhcp.script:1: pcap /home/mike/code/snort/snort-extra/inspectors/dhcp_monitor/pcaps/dhcp_clean.pcap: signal: segmentation fault (core dumped)

Or as a reported error:

...

=================================================================
==31132==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x7cf5832b61e7 in operator new(unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cpp:99
    #1 0x7cf581e2ee51 in InitModule src/malloc_extension.cc:212
    #2 0x7cf581e2ee51 in InitModule src/malloc_extension.cc:208
    #3 0x7cf581e2ee51 in MallocExtension::Register(MallocExtension*) src/malloc_extension.cc:226

SUMMARY: AddressSanitizer: 8 byte(s) leaked in 1 allocation(s).

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