crypto/bn/bn_exp.c:206: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_RECP_CTX_set`.
Showing all 21 steps of the trace


crypto/bn/bn_exp.c:206:13: Call
204.               goto err;
205.       } else {
206.           if (BN_RECP_CTX_set(&recp, m, ctx) <= 0)
                   ^
207.               goto err;
208.       }

crypto/bn/bn_recp.c:44:1: Parameter `recp->N.top`
  42.   }
  43.   
  44. > int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
  45.   {
  46.       if (!BN_copy(&(recp->N), d))

crypto/bn/bn_recp.c:46:10: Call
  44.   int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
  45.   {
  46.       if (!BN_copy(&(recp->N), d))
                 ^
  47.           return 0;
  48.       BN_zero(&(recp->Nr));

crypto/bn/bn_lib.c:285:1: Parameter `a->top`
    283.   }
    284.   
    285. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    286.   {
    287.       bn_check_top(b);

crypto/bn/bn_lib.c:291:9: Call
    289.       if (a == b)
    290.           return a;
    291.       if (bn_wexpand(a, b->top) == NULL)
                   ^
    292.           return NULL;
    293.   

crypto/bn/bn_lib.c:910:1: Parameter `a->top`
      908.   }
      909.   
      910. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      911.   {
      912.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:912:37: Call
      910.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
      911.   {
      912.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                 ^
      913.   }
      914.   

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

crypto/bn/bn_lib.c:251:23: Call
        249.   
        250.       if (words > b->dmax) {
        251.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        252.           if (!a)
        253.               return NULL;

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

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

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

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

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

crypto/mem.c:221:1: Parameter `num`
            219.   }
            220.   
            221. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            222.   {
            223.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:223:17: Call
            221.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            222.   {
            223.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            224.   
            225.       FAILTEST();

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

crypto/mem.c:223:5: Assignment
            221.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            222.   {
            223.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            224.   
            225.       FAILTEST();

crypto/mem.c:228:5: Assignment
            226.       if (ret != NULL)
            227.           memset(ret, 0, num);
            228.       return ret;
                       ^
            229.   }
            230.   

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

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