crypto/pem/pvkfmt.c:581: error: INTEGER_OVERFLOW_L2
  ([0, `rsa->n->top`] - 1):unsigned64 by call to `BN_num_bits`.
Showing all 7 steps of the trace


crypto/pem/pvkfmt.c:575:1: Parameter `rsa->n->top`
573.   	}
574.   
575. > static int check_bitlen_rsa(RSA *rsa, int ispub, unsigned int *pmagic)
576.   	{
577.   	int nbyte, hnbyte, bitlen;

crypto/pem/pvkfmt.c:580:11: Call
578.   	if (BN_num_bits(rsa->e) > 32)
579.   		goto badkey;
580.   	bitlen = BN_num_bits(rsa->n);
                 ^
581.   	nbyte = BN_num_bytes(rsa->n);
582.   	hnbyte = (BN_num_bits(rsa->n) + 15) >> 4;

crypto/bn/bn_lib.c:248:1: Parameter `a->top`
  246.   	}
  247.   
  248. > int BN_num_bits(const BIGNUM *a)
  249.   	{
  250.   	int i = a->top - 1;

crypto/pem/pvkfmt.c:581:10: Call
579.   		goto badkey;
580.   	bitlen = BN_num_bits(rsa->n);
581.   	nbyte = BN_num_bytes(rsa->n);
                ^
582.   	hnbyte = (BN_num_bits(rsa->n) + 15) >> 4;
583.   	if (ispub)

crypto/bn/bn_lib.c:248:1: <LHS trace>
246.   	}
247.   
248. > int BN_num_bits(const BIGNUM *a)
249.   	{
250.   	int i = a->top - 1;

crypto/bn/bn_lib.c:248:1: Parameter `a->top`
  246.   	}
  247.   
  248. > int BN_num_bits(const BIGNUM *a)
  249.   	{
  250.   	int i = a->top - 1;

crypto/bn/bn_lib.c:250:2: Binary operation: ([0, rsa->n->top] - 1):unsigned64 by call to `BN_num_bits` 
  248.   int BN_num_bits(const BIGNUM *a)
  249.   	{
  250.   	int i = a->top - 1;
          ^
  251.   	bn_check_top(a);
  252.   
