crypto/dsa/dsa_ossl.c:81: error: BUFFER_OVERRUN_L3
  Offset: [1, +oo] Size: [0, 8388607] by call to `dsa_sign_setup`.
Showing all 19 steps of the trace


crypto/dsa/dsa_ossl.c:49:1: Parameter `dsa->g->top`
47.   }
48.   
49. > static DSA_SIG *dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
50.   {
51.       BIGNUM *kinv = NULL;

crypto/dsa/dsa_ossl.c:81:10: Call
79.           goto err;
80.    redo:
81.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
82.           goto err;
83.   

crypto/dsa/dsa_ossl.c:133:1: Parameter `dsa->g->top`
  131.   }
  132.   
  133. > static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in,
  134.                             BIGNUM **kinvp, BIGNUM **rp,
  135.                             const unsigned char *dgst, int dlen)

crypto/dsa/dsa_ossl.c:199:18: Call
  197.                   goto err;
  198.       } else {
  199.               if (!BN_mod_exp_mont(r, dsa->g, k, dsa->p, ctx, dsa->method_mont_p))
                          ^
  200.                   goto err;
  201.       }

crypto/bn/bn_exp.c:301:1: Parameter `a->top`
    299.   }
    300.   
    301. > int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
    302.                       const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
    303.   {

crypto/bn/bn_exp.c:313:16: Call
    311.   
    312.       if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {
    313.           return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
                          ^
    314.       }
    315.   

crypto/bn/bn_exp.c:601:1: Parameter `a->top`
      599.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
      600.    */
      601. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
      602.                                 const BIGNUM *m, BN_CTX *ctx,
      603.                                 BN_MONT_CTX *in_mont)

crypto/bn/bn_exp.c:754:14: Call
      752.       /* prepare a^1 in Montgomery domain */
      753.       if (a->neg || BN_ucmp(a, m) >= 0) {
      754.           if (!BN_mod(&am, a, m, ctx))
                          ^
      755.               goto err;
      756.           if (!BN_to_montgomery(&am, &am, mont, ctx))

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:83:1: <Offset trace>
81.   }
82.   
83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
84.   {
85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:83:1: Parameter `n`
          81.   }
          82.   
          83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
          84.   {
          85.       int i, nw, lb, rb;

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

crypto/bn/bn_shift.c:83:1: <Length trace>
81.   }
82.   
83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
84.   {
85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:83:1: Parameter `*r->d`
          81.   }
          82.   
          83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
          84.   {
          85.       int i, nw, lb, rb;

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

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:104:5: Assignment
          102.       rb = BN_BITS2 - lb;
          103.       f = a->d;
          104.       t = r->d;
                     ^
          105.       t[a->top + nw] = 0;
          106.       if (lb == 0)

crypto/bn/bn_shift.c:112:13: Array access: Offset: [1, +oo] Size: [0, 8388607] by call to `dsa_sign_setup` 
          110.           for (i = a->top - 1; i >= 0; i--) {
          111.               l = f[i];
          112.               t[nw + i + 1] |= (l >> rb) & BN_MASK2;
                             ^
          113.               t[nw + i] = (l << lb) & BN_MASK2;
          114.           }
