crypto/dsa/dsa_ossl.c:221: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_priv_rand_range`.
Showing all 25 steps of the trace


crypto/dsa/dsa_ossl.c:207:10: Call
205.       q_bits = BN_num_bits(dsa->q);
206.       q_words = bn_get_top(dsa->q);
207.       if (!bn_wexpand(k, q_words + 2)
                ^
208.           || !bn_wexpand(l, q_words + 2))
209.           goto err;

crypto/bn/bn_lib.c:939:1: Parameter `a->top`
  937.   }
  938.   
  939. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
  940.   {
  941.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/dsa/dsa_ossl.c:221:21: Call
219.                                          dlen, ctx))
220.                   goto err;
221.           } else if (!BN_priv_rand_range(k, dsa->q))
                           ^
222.               goto err;
223.       } while (BN_is_zero(k));

crypto/bn/bn_rand.c:182:1: Parameter `r->top`
  180.   }
  181.   
  182. > int BN_priv_rand_range(BIGNUM *r, const BIGNUM *range)
  183.   {
  184.       return bnrand_range(PRIVATE, r, range);

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 `r->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/bn/bn_rand.c:128:9: Call
    126.   
    127.       if (n == 1)
    128.           BN_zero(r);
                   ^
    129.       else if (!BN_is_bit_set(range, n - 2) && !BN_is_bit_set(range, n - 3)) {
    130.           /*

crypto/bn/bn_lib.c:359:1: Parameter `a->top`
      357.   }
      358.   
      359. > int BN_set_word(BIGNUM *a, BN_ULONG w)
      360.   {
      361.       bn_check_top(a);

crypto/bn/bn_lib.c:362:9: Call
      360.   {
      361.       bn_check_top(a);
      362.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                     ^
      363.           return 0;
      364.       a->neg = 0;

crypto/bn/bn_lcl.h:660:1: Parameter `a->top`
        658.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
        659.   
        660. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
        661.   {
        662.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:668:12: Call
        666.           return a;
        667.   
        668.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                          ^
        669.   }
        670.   

crypto/bn/bn_lib.c:245:1: Parameter `b->top`
          243.    */
          244.   
          245. > BIGNUM *bn_expand2(BIGNUM *b, int words)
          246.   {
          247.       if (words > b->dmax) {

crypto/bn/bn_lib.c:248:23: Call
          246.   {
          247.       if (words > b->dmax) {
          248.           BN_ULONG *a = bn_expand_internal(b, words);
                                       ^
          249.           if (!a)
          250.               return NULL;

crypto/bn/bn_lib.c:209:1: <Offset trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `b->top`
            207.   /* This is used by bn_expand2() */
            208.   /* The caller MUST check that words > b->dmax before calling this */
            209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
            210.   {
            211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: <Length trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `words`
            207.   /* This is used by bn_expand2() */
            208.   /* The caller MUST check that words > b->dmax before calling this */
            209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
            210.   {
            211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:224:13: Call
            222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            223.       else
            224.           a = OPENSSL_zalloc(words * sizeof(*a));
                               ^
            225.       if (a == NULL) {
            226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:228:1: Parameter `num`
              226.   }
              227.   
              228. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:230:17: Call
              228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);
                                     ^
              231.   
              232.       FAILTEST();

crypto/mem.c:201:9: Assignment
                199.   
                200.       if (num == 0)
                201.           return NULL;
                               ^
                202.   
                203.       FAILTEST();

crypto/mem.c:230:5: Assignment
              228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);
                         ^
              231.   
              232.       FAILTEST();

crypto/mem.c:235:5: Assignment
              233.       if (ret != NULL)
              234.           memset(ret, 0, num);
              235.       return ret;
                         ^
              236.   }
              237.   

crypto/bn/bn_lib.c:224:9: Assignment
            222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            223.       else
            224.           a = OPENSSL_zalloc(words * sizeof(*a));
                           ^
            225.       if (a == NULL) {
            226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:232:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_priv_rand_range` 
            230.       assert(b->top <= words);
            231.       if (b->top > 0)
            232.           memcpy(a, b->d, sizeof(*a) * b->top);
                           ^
            233.   
            234.       return a;
