test/bntest.c:436: error: BUFFER_OVERRUN_L3
  Offset: [1, +oo] Size: [0, 8388607] by call to `BN_div`.
Showing all 14 steps of the trace


test/bntest.c:433:5: Call
431.       e = BN_new();
432.   
433.       BN_one(a);
           ^
434.       BN_zero(b);
435.   

crypto/bn/bn_lib.c:463:1: Parameter `a->top`
  461.   }
  462.   
  463. > int BN_set_word(BIGNUM *a, BN_ULONG w)
  464.   {
  465.       bn_check_top(a);

test/bntest.c:436:9: Call
434.       BN_zero(b);
435.   
436.       if (BN_div(d, c, a, b, ctx)) {
               ^
437.           fprintf(stderr, "Division by zero succeeded!\n");
438.           return 0;

crypto/bn/bn_div.c:140:1: Parameter `num->top`
  138.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
  139.    */
  140. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
  141.              BN_CTX *ctx)
  142.   {

crypto/bn/bn_div.c:210:11: Call
  208.       sdiv->neg = 0;
  209.       norm_shift += BN_BITS2;
  210.       if (!(BN_lshift(snum, num, norm_shift)))
                   ^
  211.           goto err;
  212.       snum->neg = 0;

crypto/bn/bn_shift.c:81:1: <Offset trace>
79.   }
80.   
81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
82.   {
83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:81:1: Parameter `n`
    79.   }
    80.   
    81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
    82.   {
    83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:96:5: Assignment
    94.   
    95.       r->neg = a->neg;
    96.       nw = n / BN_BITS2;
              ^
    97.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
    98.           return (0);

crypto/bn/bn_shift.c:81:1: <Length trace>
79.   }
80.   
81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
82.   {
83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:81:1: Parameter `*r->d`
    79.   }
    80.   
    81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
    82.   {
    83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:97:9: Call
    95.       r->neg = a->neg;
    96.       nw = n / BN_BITS2;
    97.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
                   ^
    98.           return (0);
    99.       lb = n % BN_BITS2;

crypto/bn/bn_lib.c:1016:1: Parameter `*a->d`
      1014.   }
      1015.   
      1016. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      1017.   {
      1018.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_shift.c:102:5: Assignment
    100.       rb = BN_BITS2 - lb;
    101.       f = a->d;
    102.       t = r->d;
               ^
    103.       t[a->top + nw] = 0;
    104.       if (lb == 0)

crypto/bn/bn_shift.c:110:13: Array access: Offset: [1, +oo] Size: [0, 8388607] by call to `BN_div` 
    108.           for (i = a->top - 1; i >= 0; i--) {
    109.               l = f[i];
    110.               t[nw + i + 1] |= (l >> rb) & BN_MASK2;
                       ^
    111.               t[nw + i] = (l << lb) & BN_MASK2;
    112.           }
