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After executing FwpmNetEventEnum5, there is a lot of memory leak after calling FwpmFreeMemory0.
The current operating system version is windows 10.0.19042
And I have raised the bug in the GitHub sample：https://github.com/microsoft/Windows-classic-samples/issues/202
After replacing FwpmNetEventEnum0 with FwpmNetEventEnum5, I did not find memory leak in diagevents sample but I used an invalid remoteAddr. My windows10 OS build is 19042.928.
Do you have a loop call to getmatchingevents and fwpmfreememory0 in the main function? Is the value num returned by getmatchingevents greater than 0?
For example:
void main() {
while(true) {
...
result = GetMatchingEvents(mins,
version,
&remoteAddr,
&matchedEvents,
&Num); / / the returned value for the test is generally at least 32, so the memory leak is very obvious
...
FwpmFreeMemory0((VOID**)&matchedEvents);
...
}
}
I just make a little change. But the value num returned by getmatchingevents is 0.
