apps/gendsa.c:128: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `DSA_generate_key`.
Showing all 24 steps of the trace


apps/gendsa.c:121:9: Call
119.       DSA_get0_pqg(dsa, &p, NULL, NULL);
120.   
121.       if (BN_num_bits(p) > OPENSSL_DSA_MAX_MODULUS_BITS)
               ^
122.           BIO_printf(bio_err,
123.                      "Warning: It is not recommended to use more than %d bit for DSA keys.\n"

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:846:1: Parameter `a->top`
    844.   }
    845.   
    846. > int BN_is_zero(const BIGNUM *a)
    847.   {
    848.       return a->top == 0;

apps/gendsa.c:127:58: Call
125.                      OPENSSL_DSA_MAX_MODULUS_BITS, BN_num_bits(p));
126.   
127.       BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(p));
                                                                ^
128.       if (!DSA_generate_key(dsa))
129.           goto end;

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:846:1: Parameter `a->top`
    844.   }
    845.   
    846. > int BN_is_zero(const BIGNUM *a)
    847.   {
    848.       return a->top == 0;

apps/gendsa.c:128:10: Call
126.   
127.       BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(p));
128.       if (!DSA_generate_key(dsa))
                ^
129.           goto end;
130.   

crypto/dsa/dsa_key.c:18:1: Parameter `dsa->p->top`
  16.   static int dsa_builtin_keygen(DSA *dsa);
  17.   
  18. > int DSA_generate_key(DSA *dsa)
  19.   {
  20.       if (dsa->meth->dsa_keygen)

crypto/dsa/dsa_key.c:22:12: Call
  20.       if (dsa->meth->dsa_keygen)
  21.           return dsa->meth->dsa_keygen(dsa);
  22.       return dsa_builtin_keygen(dsa);
                   ^
  23.   }
  24.   

crypto/dsa/dsa_key.c:25:1: Parameter `dsa->p->top`
    23.   }
    24.   
    25. > static int dsa_builtin_keygen(DSA *dsa)
    26.   {
    27.       int ok = 0;

crypto/dsa/dsa_key.c:58:14: Call
    56.           BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
    57.   
    58.           if (!BN_mod_exp(pub_key, dsa->g, prk, dsa->p, ctx)) {
                       ^
    59.               BN_free(prk);
    60.               goto err;

crypto/bn/bn_exp.c:89:1: Parameter `m->top`
      87.   }
      88.   
      89. > int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
      90.                  BN_CTX *ctx)
      91.   {

crypto/bn/bn_exp.c:134:9: Call
      132.   
      133.   #ifdef MONT_MUL_MOD
      134.       if (BN_is_odd(m)) {
                     ^
      135.   # ifdef MONT_EXP_WORD
      136.           if (a->top == 1 && !a->neg

crypto/bn/bn_lib.c:861:1: Parameter `a->top`
        859.   }
        860.   
        861. > int BN_is_odd(const BIGNUM *a)
        862.   {
        863.       return (a->top > 0) && (a->d[0] & 1);

crypto/bn/bn_exp.c:149:15: Call
      147.   #ifdef RECP_MUL_MOD
      148.       {
      149.           ret = BN_mod_exp_recp(r, a, p, m, ctx);
                           ^
      150.       }
      151.   #else

crypto/bn/bn_exp.c:161:1: Parameter `m->top`
        159.   }
        160.   
        161. > int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
        162.                       const BIGNUM *m, BN_CTX *ctx)
        163.   {

crypto/bn/bn_exp.c:200:14: Call
        198.       if (m->neg) {
        199.           /* ignore sign of 'm' */
        200.           if (!BN_copy(aa, m))
                            ^
        201.               goto err;
        202.           aa->neg = 0;

crypto/bn/bn_lib.c:280:1: <Offset trace>
278.   }
279.   
280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
281.   {
282.       bn_check_top(b);

crypto/bn/bn_lib.c:280:1: Parameter `b->top`
          278.   }
          279.   
          280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          281.   {
          282.       bn_check_top(b);

crypto/bn/bn_lib.c:280:1: <Length trace>
278.   }
279.   
280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
281.   {
282.       bn_check_top(b);

crypto/bn/bn_lib.c:280:1: Parameter `*a->d`
          278.   }
          279.   
          280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          281.   {
          282.       bn_check_top(b);

crypto/bn/bn_lib.c:286:9: Call
          284.       if (a == b)
          285.           return a;
          286.       if (bn_wexpand(a, b->top) == NULL)
                         ^
          287.           return NULL;
          288.   

crypto/bn/bn_lib.c:942:1: Parameter `*a->d`
            940.   }
            941.   
            942. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
            943.   {
            944.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:290:9: Array access: Offset added: [8, +oo] Size: [0, 536870848] by call to `DSA_generate_key` 
          288.   
          289.       if (b->top > 0)
          290.           memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
                         ^
          291.   
          292.       a->neg = b->neg;
