test/exptest.c:161: error: BUFFER_OVERRUN_L3
  Offset: [8, +oo] (⇐ [8, +oo] + [0, +oo]) Size: [0, 8388607] by call to `BN_mod_exp_mont`.
Showing all 23 steps of the trace


test/exptest.c:149:5: Call
147.       RAND_bytes(&c, 1);
148.       c = (c % BN_BITS) - BN_BITS2;
149.       BN_rand(a, NUM_BITS + c, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY);
           ^
150.   
151.       RAND_bytes(&c, 1);

crypto/bn/bn_rand.c:97:1: Parameter `*rnd->d`
  95.   }
  96.   
  97. > int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
  98.   {
  99.       return bnrand(NORMAL, rnd, bits, top, bottom);

crypto/bn/bn_rand.c:99:12: Call
  97.   int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
  98.   {
  99.       return bnrand(NORMAL, rnd, bits, top, bottom);
                    ^
  100.   }
  101.   

crypto/bn/bn_rand.c:21:1: Parameter `*rnd->d`
    19.   } BNRAND_FLAG;
    20.   
    21. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
    22.   {
    23.       unsigned char *buf = NULL;

test/exptest.c:161:13: Call
159.       if (!TEST_true(BN_mod(a, a, m, ctx))
160.           || !TEST_true(BN_mod(b, b, m, ctx))
161.           || !TEST_true(BN_mod_exp_mont(r_mont, a, b, m, ctx, NULL))
                   ^
162.           || !TEST_true(BN_mod_exp_recp(r_recp, a, b, m, ctx))
163.           || !TEST_true(BN_mod_exp_simple(r_simple, a, b, m, ctx))

crypto/bn/bn_exp.c:296:1: Parameter `*a->d`
  294.   }
  295.   
  296. > int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
  297.                       const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
  298.   {

crypto/bn/bn_exp.c:359:10: Call
  357.       } else
  358.           aa = a;
  359.       if (!bn_to_mont_fixed_top(val[0], aa, mont, ctx))
                  ^
  360.           goto err;               /* 1 */
  361.   

crypto/bn/bn_mont.c:222:1: Parameter `*a->d`
    220.   }
    221.   
    222. > int bn_to_mont_fixed_top(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
    223.                            BN_CTX *ctx)
    224.   {

crypto/bn/bn_mont.c:225:12: Call
    223.                            BN_CTX *ctx)
    224.   {
    225.       return bn_mul_mont_fixed_top(r, a, &(mont->RR), mont, ctx);
                      ^
    226.   }
    227.   

crypto/bn/bn_mont.c:37:1: Parameter `*a->d`
      35.   }
      36.   
      37. > int bn_mul_mont_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
      38.                             BN_MONT_CTX *mont, BN_CTX *ctx)
      39.   {

crypto/bn/bn_mont.c:70:14: Call
      68.               goto err;
      69.       } else {
      70.           if (!bn_mul_fixed_top(tmp, a, b, ctx))
                         ^
      71.               goto err;
      72.       }

crypto/bn/bn_mul.c:507:1: Parameter `*a->d`
        505.   }
        506.   
        507. > int bn_mul_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
        508.   {
        509.       int ret = 0;

crypto/bn/bn_mul.c:587:17: Call
        585.                   if (bn_wexpand(rr, k * 4) == NULL)
        586.                       goto err;
        587.                   bn_mul_part_recursive(rr->d, a->d, b->d,
                               ^
        588.                                         j, al - j, bl - j, t->d);
        589.               } else {            /* al <= j || bl <= j */

crypto/bn/bn_mul.c:322:1: Parameter `n`
          320.    */
          321.   /* tnX may not be negative but less than n */
          322. > void bn_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n,
          323.                              int tna, int tnb, BN_ULONG *t)
          324.   {

crypto/bn/bn_mul.c:335:10: Call
          333.   
          334.       /* r=(a[0]-a[1])*(b[1]-b[0]) */
          335.       c1 = bn_cmp_part_words(a, &(a[n]), tna, n - tna);
                          ^
          336.       c2 = bn_cmp_part_words(&(b[n]), b, tnb, tnb - n);
          337.       neg = 0;

crypto/bn/bn_lib.c:706:1: Parameter `cl`
            704.    */
            705.   
            706. > int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b, int cl, int dl)
            707.   {
            708.       int n, i;

crypto/bn/bn_lib.c:723:12: Call
            721.           }
            722.       }
            723.       return bn_cmp_words(a, b, cl);
                              ^
            724.   }
            725.   

crypto/bn/bn_lib.c:679:1: <Offset trace>
677.   }
678.   
679. > int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
680.   {
681.       int i;

crypto/bn/bn_lib.c:679:1: Parameter `n`
              677.   }
              678.   
              679. > int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
              680.   {
              681.       int i;

crypto/bn/bn_lib.c:688:10: Assignment
              686.       if (aa != bb)
              687.           return ((aa > bb) ? 1 : -1);
              688.       for (i = n - 2; i >= 0; i--) {
                              ^
              689.           aa = a[i];
              690.           bb = b[i];

crypto/bn/bn_lib.c:679:1: <Length trace>
677.   }
678.   
679. > int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
680.   {
681.       int i;

crypto/bn/bn_lib.c:679:1: Parameter `*b`
              677.   }
              678.   
              679. > int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
              680.   {
              681.       int i;

crypto/bn/bn_lib.c:690:14: Array access: Offset: [8, +oo] (⇐ [8, +oo] + [0, +oo]) Size: [0, 8388607] by call to `BN_mod_exp_mont` 
              688.       for (i = n - 2; i >= 0; i--) {
              689.           aa = a[i];
              690.           bb = b[i];
                                  ^
              691.           if (aa != bb)
              692.               return ((aa > bb) ? 1 : -1);
