crypto/dsa/dsa_ossl.c:91: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `dsa_sign_setup`.
Showing all 27 steps of the trace


crypto/dsa/dsa_ossl.c:91:10: Call
89.           goto err;
90.    redo:
91.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
92.           goto err;
93.   

crypto/dsa/dsa_ossl.c:143:1: Parameter `(*rp)->top`
  141.   }
  142.   
  143. > static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in,
  144.                             BIGNUM **kinvp, BIGNUM **rp,
  145.                             const unsigned char *dgst, int dlen)

crypto/dsa/dsa_ossl.c:91:10: Call
89.           goto err;
90.    redo:
91.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
92.           goto err;
93.   

crypto/dsa/dsa_ossl.c:143:1: Parameter `(*rp)->top`
  141.   }
  142.   
  143. > static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in,
  144.                             BIGNUM **kinvp, BIGNUM **rp,
  145.                             const unsigned char *dgst, int dlen)

crypto/dsa/dsa_ossl.c:209:18: Call
  207.                   goto err;
  208.       } else {
  209.               if (!BN_mod_exp_mont(r, dsa->g, k, dsa->p, ctx, dsa->method_mont_p))
                          ^
  210.                   goto err;
  211.       }

crypto/bn/bn_exp.c:296:1: Parameter `rr->top`
    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:310:16: Call
    308.               || BN_get_flags(a, BN_FLG_CONSTTIME) != 0
    309.               || BN_get_flags(m, BN_FLG_CONSTTIME) != 0) {
    310.           return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
                          ^
    311.       }
    312.   

crypto/bn/bn_exp.c:598:1: Parameter `rr->top`
      596.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
      597.    */
      598. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
      599.                                 const BIGNUM *m, BN_CTX *ctx,
      600.                                 BN_MONT_CTX *in_mont)

crypto/bn/bn_exp.c:633:19: Call
      631.               BN_zero(rr);
      632.           } else {
      633.               ret = BN_one(rr);
                               ^
      634.           }
      635.           return ret;

crypto/bn/bn_lib.c:387:1: Parameter `a->top`
        385.   }
        386.   
        387. > int BN_set_word(BIGNUM *a, BN_ULONG w)
        388.   {
        389.       bn_check_top(a);

crypto/bn/bn_lib.c:390:9: Call
        388.   {
        389.       bn_check_top(a);
        390.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                       ^
        391.           return 0;
        392.       a->neg = 0;

crypto/bn/bn_lcl.h:651:1: Parameter `a->top`
          649.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
          650.   
          651. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
          652.   {
          653.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:659:12: Call
          657.           return a;
          658.   
          659.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                            ^
          660.   }
          661.   

crypto/bn/bn_lib.c:273:1: Parameter `b->top`
            271.    */
            272.   
            273. > BIGNUM *bn_expand2(BIGNUM *b, int words)
            274.   {
            275.       bn_check_top(b);

crypto/bn/bn_lib.c:278:23: Call
            276.   
            277.       if (words > b->dmax) {
            278.           BN_ULONG *a = bn_expand_internal(b, words);
                                         ^
            279.           if (!a)
            280.               return NULL;

crypto/bn/bn_lib.c:235:1: <Offset trace>
233.   /* This is used by bn_expand2() */
234.   /* The caller MUST check that words > b->dmax before calling this */
235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
236.   {
237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: Parameter `b->top`
              233.   /* This is used by bn_expand2() */
              234.   /* The caller MUST check that words > b->dmax before calling this */
              235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
              236.   {
              237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: <Length trace>
233.   /* This is used by bn_expand2() */
234.   /* The caller MUST check that words > b->dmax before calling this */
235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
236.   {
237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: Parameter `words`
              233.   /* This is used by bn_expand2() */
              234.   /* The caller MUST check that words > b->dmax before calling this */
              235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
              236.   {
              237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:252:13: Call
              250.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
              251.       else
              252.           a = OPENSSL_zalloc(words * sizeof(*a));
                                 ^
              253.       if (a == NULL) {
              254.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:218:1: Parameter `num`
                216.   }
                217.   
                218. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
                219.   {
                220.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:220:17: Call
                218.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                219.   {
                220.       void *ret = CRYPTO_malloc(num, file, line);
                                       ^
                221.   
                222.       FAILTEST();

crypto/mem.c:198:9: Assignment
                  196.   
                  197.       if (num == 0)
                  198.           return NULL;
                                 ^
                  199.   
                  200.       FAILTEST();

crypto/mem.c:220:5: Assignment
                218.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                219.   {
                220.       void *ret = CRYPTO_malloc(num, file, line);
                           ^
                221.   
                222.       FAILTEST();

crypto/mem.c:225:5: Assignment
                223.       if (ret != NULL)
                224.           memset(ret, 0, num);
                225.       return ret;
                           ^
                226.   }
                227.   

crypto/bn/bn_lib.c:252:9: Assignment
              250.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
              251.       else
              252.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
              253.       if (a == NULL) {
              254.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:260:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `dsa_sign_setup` 
              258.       assert(b->top <= words);
              259.       if (b->top > 0)
              260.           memcpy(a, b->d, sizeof(*a) * b->top);
                             ^
              261.   
              262.       return a;
