crypto/ec/ecp_smpl.c:918: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_mod_sub_quick`.
Showing all 25 steps of the trace


crypto/ec/ecp_smpl.c:881:14: Call
879.       /* Z_r */
880.       if (a->Z_is_one) {
881.           if (!BN_copy(n0, a->Y))
                    ^
882.               goto err;
883.       } else {

crypto/bn/bn_lib.c:280:1: Parameter `a->top`
  278.   }
  279.   
  280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
  281.   {
  282.       bn_check_top(b);

crypto/ec/ecp_smpl.c:918:10: Call
916.   
917.       /* Y_r */
918.       if (!BN_mod_sub_quick(n0, n2, r->X, p))
                ^
919.           goto err;
920.       if (!field_mul(group, n0, n1, n0, ctx))

crypto/bn/bn_mod.c:62:1: Parameter `r->top`
  60.    * less than m
  61.    */
  62. > int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
  63.                        const BIGNUM *m)
  64.   {

crypto/bn/bn_mod.c:65:10: Call
  63.                        const BIGNUM *m)
  64.   {
  65.       if (!BN_sub(r, a, b))
                 ^
  66.           return 0;
  67.       if (r->neg)

crypto/bn/bn_add.c:45:1: Parameter `r->top`
    43.   
    44.   /* signed sub of b from a. */
    45. > int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
    46.   {
    47.       int ret, r_neg, cmp_res;

crypto/bn/bn_add.c:62:19: Call
    60.           } else if (cmp_res < 0) {
    61.               r_neg = !b->neg;
    62.               ret = BN_usub(r, b, a);
                            ^
    63.           } else {
    64.               r_neg = 0;

crypto/bn/bn_add.c:125:1: Parameter `r->top`
      123.   
      124.   /* unsigned subtraction of b from a, a must be larger than b. */
      125. > int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
      126.   {
      127.       int max, min, dif;

crypto/bn/bn_add.c:143:9: Call
      141.       }
      142.   
      143.       if (bn_wexpand(r, max) == NULL)
                     ^
      144.           return 0;
      145.   

crypto/bn/bn_lib.c:942:1: Parameter `a->top`
        940.   }
        941.   
        942. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
        943.   {
        944.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:944:37: Call
        942.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
        943.   {
        944.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                   ^
        945.   }
        946.   

crypto/bn/bn_lib.c:244:1: Parameter `b->top`
          242.    */
          243.   
          244. > BIGNUM *bn_expand2(BIGNUM *b, int words)
          245.   {
          246.       if (words > b->dmax) {

crypto/bn/bn_lib.c:247:23: Call
          245.   {
          246.       if (words > b->dmax) {
          247.           BN_ULONG *a = bn_expand_internal(b, words);
                                       ^
          248.           if (!a)
          249.               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:223:13: Call
            221.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            222.       else
            223.           a = OPENSSL_zalloc(words * sizeof(*a));
                               ^
            224.       if (a == NULL) {
            225.           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:223:9: Assignment
            221.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            222.       else
            223.           a = OPENSSL_zalloc(words * sizeof(*a));
                           ^
            224.       if (a == NULL) {
            225.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

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