libinfinipath + dynamic load causes SIGSEGV

[janekmi]

If process using libinfinipath aborts (theoretically receives any signal) it will cause SIGSEGV. It is possible to reproduce this issue by loading and unloading libinfinipath with dlopen and dlclose and abort after that.

libinfinipath constructor registers signal handlers which are not probably unregistered properly if library is dynamically loaded / unloaded.

#include <stdlib.h>
#include <assert.h>
#include <dlfcn.h>

#define LIBRARY "libinfinipath.so"

int main(int argc, char *argv[])
{
	void *handle = dlopen(LIBRARY, RTLD_NOW);
	assert(handle != 0);

	dlclose(handle);

	/* Should abort "gracefully" with SIGABRT no with SIGSEGV */
	abort();
	return 0;
}