crypto/dsa/dsa_ossl.c:81: 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:81:10: Call
79.           goto err;
80.    redo:
81.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
82.           goto err;
83.   

crypto/dsa/dsa_ossl.c:133:1: Parameter `(*rp)->top`
  131.   }
  132.   
  133. > static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in,
  134.                             BIGNUM **kinvp, BIGNUM **rp,
  135.                             const unsigned char *dgst, int dlen)

crypto/dsa/dsa_ossl.c:81:10: Call
79.           goto err;
80.    redo:
81.       if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen))
               ^
82.           goto err;
83.   

crypto/dsa/dsa_ossl.c:133:1: Parameter `(*rp)->top`
  131.   }
  132.   
  133. > static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in,
  134.                             BIGNUM **kinvp, BIGNUM **rp,
  135.                             const unsigned char *dgst, int dlen)

crypto/dsa/dsa_ossl.c:199:18: Call
  197.                   goto err;
  198.       } else {
  199.               if (!BN_mod_exp_mont(r, dsa->g, k, dsa->p, ctx, dsa->method_mont_p))
                          ^
  200.                   goto err;
  201.       }

crypto/bn/bn_exp.c:294:1: Parameter `rr->top`
    292.   }
    293.   
    294. > int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
    295.                       const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
    296.   {

crypto/bn/bn_exp.c:306:16: Call
    304.   
    305.       if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {
    306.           return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
                          ^
    307.       }
    308.   

crypto/bn/bn_exp.c:594:1: Parameter `rr->top`
      592.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
      593.    */
      594. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
      595.                                 const BIGNUM *m, BN_CTX *ctx,
      596.                                 BN_MONT_CTX *in_mont)

crypto/bn/bn_exp.c:629:19: Call
      627.               BN_zero(rr);
      628.           } else {
      629.               ret = BN_one(rr);
                               ^
      630.           }
      631.           return ret;

crypto/bn/bn_lib.c:395:1: Parameter `a->top`
        393.   }
        394.   
        395. > int BN_set_word(BIGNUM *a, BN_ULONG w)
        396.   {
        397.       bn_check_top(a);

crypto/bn/bn_lib.c:398:9: Call
        396.   {
        397.       bn_check_top(a);
        398.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                       ^
        399.           return (0);
        400.       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: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:186:1: Parameter `num`
                184.   }
                185.   
                186. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
                187.   {
                188.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:188:17: Call
                186.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                187.   {
                188.       void *ret = CRYPTO_malloc(num, file, line);
                                       ^
                189.   
                190.       FAILTEST();

crypto/mem.c:166:9: Assignment
                  164.   
                  165.       if (num == 0)
                  166.           return NULL;
                                 ^
                  167.   
                  168.       FAILTEST();

crypto/mem.c:188:5: Assignment
                186.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
                187.   {
                188.       void *ret = CRYPTO_malloc(num, file, line);
                           ^
                189.   
                190.       FAILTEST();

crypto/mem.c:193:5: Assignment
                191.       if (ret != NULL)
                192.           memset(ret, 0, num);
                193.       return ret;
                           ^
                194.   }
                195.   

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;
