crypto/ec/ecdsa_ossl.c:92: error: BUFFER_OVERRUN_L3
  Offset: [1, +oo] Size: [0, 8388607] by call to `BN_generate_dsa_nonce`.
Showing all 22 steps of the trace


crypto/ec/ecdsa_ossl.c:100:22: Call
98.                   }
99.               } else {
100.                   if (!BN_priv_rand_range(k, order)) {
                            ^
101.                       ECerr(EC_F_ECDSA_SIGN_SETUP,
102.                                EC_R_RANDOM_NUMBER_GENERATION_FAILED);

crypto/bn/bn_rand.c:184:12: Call
  182.   int BN_priv_rand_range(BIGNUM *r, const BIGNUM *range)
  183.   {
  184.       return bnrand_range(PRIVATE, r, range);
                    ^
  185.   }
  186.   

crypto/bn/bn_rand.c:113:1: Parameter `range->top`
    111.   
    112.   /* random number r:  0 <= r < range */
    113. > static int bnrand_range(BNRAND_FLAG flag, BIGNUM *r, const BIGNUM *range)
    114.   {
    115.       int n;

crypto/ec/ecdsa_ossl.c:92:22: Call
90.           do
91.               if (dgst != NULL) {
92.                   if (!BN_generate_dsa_nonce
                           ^
93.                       (k, order, EC_KEY_get0_private_key(eckey), dgst, dlen,
94.                        ctx)) {

crypto/bn/bn_rand.c:205:1: Parameter `range->top`
  203.    * used.
  204.    */
  205. > int BN_generate_dsa_nonce(BIGNUM *out, const BIGNUM *range,
  206.                             const BIGNUM *priv, const unsigned char *message,
  207.                             size_t message_len, BN_CTX *ctx)

crypto/bn/bn_rand.c:218:34: Call
  216.       unsigned done, todo;
  217.       /* We generate |range|+8 bytes of random output. */
  218.       const unsigned num_k_bytes = BN_num_bytes(range) + 8;
                                          ^
  219.       unsigned char private_bytes[96];
  220.       unsigned char *k_bytes;

crypto/bn/bn_lib.c:139:9: Call
    137.       bn_check_top(a);
    138.   
    139.       if (BN_is_zero(a))
                   ^
    140.           return 0;
    141.       return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));

crypto/bn/bn_lib.c:814:1: Parameter `a->top`
      812.   }
      813.   
      814. > int BN_is_zero(const BIGNUM *a)
      815.   {
      816.       return a->top == 0;

crypto/bn/bn_rand.c:260:9: Call
  258.       if (!BN_bin2bn(k_bytes, num_k_bytes, out))
  259.           goto err;
  260.       if (BN_mod(out, out, range, ctx) != 1)
                 ^
  261.           goto err;
  262.       ret = 1;

crypto/bn/bn_div.c:199:31: Call
    197.   
    198.       /* First we normalise the numbers */
    199.       norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);
                                         ^
    200.       if (!(BN_lshift(sdiv, divisor, norm_shift)))
    201.           goto err;

crypto/bn/bn_lib.c:140:9: Assignment
      138.   
      139.       if (BN_is_zero(a))
      140.           return 0;
                     ^
      141.       return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));
      142.   }

crypto/bn/bn_div.c:199:5: Assignment
    197.   
    198.       /* First we normalise the numbers */
    199.       norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);
               ^
    200.       if (!(BN_lshift(sdiv, divisor, norm_shift)))
    201.           goto err;

crypto/bn/bn_div.c:200:11: Call
    198.       /* First we normalise the numbers */
    199.       norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);
    200.       if (!(BN_lshift(sdiv, divisor, norm_shift)))
                     ^
    201.           goto err;
    202.       sdiv->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:910:1: Parameter `*a->d`
        908.   }
        909.   
        910. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
        911.   {
        912.       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 `BN_generate_dsa_nonce` 
      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.           }
