crypto/dsa/dsa_ossl.c:93: 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:93:10: Call
91.           goto err;
92.    redo:
93.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
94.           goto err;
95.   

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

crypto/dsa/dsa_ossl.c:93:10: Call
91.           goto err;
92.    redo:
93.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
94.           goto err;
95.   

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

crypto/dsa/dsa_ossl.c:211:18: Call
  209.                   goto err;
  210.       } else {
  211.               if (!BN_mod_exp_mont(r, dsa->g, k, dsa->p, ctx, dsa->method_mont_p))
                          ^
  212.                   goto err;
  213.       }

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:398:1: Parameter `a->top`
        396.   }
        397.   
        398. > int BN_set_word(BIGNUM *a, BN_ULONG w)
        399.   {
        400.       bn_check_top(a);

crypto/bn/bn_lib.c:401:9: Call
        399.   {
        400.       bn_check_top(a);
        401.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                       ^
        402.           return (0);
        403.       a->neg = 0;

crypto/bn/bn_lcl.h:658:1: Parameter `a->top`
          656.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
          657.   
          658. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
          659.   {
          660.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:666:12: Call
          664.           return a;
          665.   
          666.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                            ^
          667.   }
          668.   

crypto/bn/bn_lib.c:284:1: Parameter `b->top`
            282.    */
            283.   
            284. > BIGNUM *bn_expand2(BIGNUM *b, int words)
            285.   {
            286.       bn_check_top(b);

crypto/bn/bn_lib.c:289:23: Call
            287.   
            288.       if (words > b->dmax) {
            289.           BN_ULONG *a = bn_expand_internal(b, words);
                                         ^
            290.           if (!a)
            291.               return NULL;

crypto/bn/bn_lib.c:246:1: <Offset trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `b->top`
              244.   /* This is used by bn_expand2() */
              245.   /* The caller MUST check that words > b->dmax before calling this */
              246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
              247.   {
              248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: <Length trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `words`
              244.   /* This is used by bn_expand2() */
              245.   /* The caller MUST check that words > b->dmax before calling this */
              246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
              247.   {
              248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:263:13: Call
              261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
              262.       else
              263.           a = OPENSSL_zalloc(words * sizeof(*a));
                                 ^
              264.       if (a == NULL) {
              265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:198:1: Parameter `num`
                196.   }
                197.   
                198. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
                199.   {
                200.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:200:17: Call
                198.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                199.   {
                200.       void *ret = CRYPTO_malloc(num, file, line);
                                       ^
                201.   
                202.       FAILTEST();

crypto/mem.c:178:9: Assignment
                  176.   
                  177.       if (num == 0)
                  178.           return NULL;
                                 ^
                  179.   
                  180.       FAILTEST();

crypto/mem.c:200:5: Assignment
                198.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                199.   {
                200.       void *ret = CRYPTO_malloc(num, file, line);
                           ^
                201.   
                202.       FAILTEST();

crypto/mem.c:205:5: Assignment
                203.       if (ret != NULL)
                204.           memset(ret, 0, num);
                205.       return ret;
                           ^
                206.   }
                207.   

crypto/bn/bn_lib.c:263:9: Assignment
              261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
              262.       else
              263.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
              264.       if (a == NULL) {
              265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:271:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `dsa_sign_setup` 
              269.       assert(b->top <= words);
              270.       if (b->top > 0)
              271.           memcpy(a, b->d, sizeof(*a) * b->top);
                             ^
              272.   
              273.       return a;
