BGV scheme multiplication operation triggers a heap-buffer-overflow.

[Wowblk]

I found a bug that causes a heap-buffer-overflow in BGV mode. The MWE is as follows:

#include <iostream>
#include <helib/helib.h>
#include <helib/binaryArith.h>
#include <helib/intraSlot.h>
int main(int argc, char* argv[])
{
long p = 2;
 long m = 4095;
 long r = 1;
 long bits = 500;
 long c = 2;
 std::vector<long> mvec = {7, 5, 9, 13};
 std::vector<long> gens = {2341, 3277, 911};
 std::vector<long> ords = {6, 4, 6};
 helib::Context context = helib::ContextBuilder<helib::BGV>()
 .m(m)
.p(p)
.r(r)
.gens(gens)
.ords(ords)
 .bits(bits)
 .c(c)
.bootstrappable(true)
.mvec(mvec)
.build();

 context.printout();
 std::cout << std::endl;
 std::cout << "Security: " << context.securityLevel() << std::endl;
 helib::SecKey secret_key(context);
 secret_key.GenSecKey();
 return 0;
}

Thank you for taking the time to look into this issue. Please let us know if any further details or clarification would be helpful! Best regards, wowblk