crypto/sm2/sm2_pmeth.c:60: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `EC_GROUP_dup`.
Showing all 12 steps of the trace


crypto/sm2/sm2_pmeth.c:60:27: Call
58.       dctx = dst->data;
59.       if (sctx->gen_group != NULL) {
60.           dctx->gen_group = EC_GROUP_dup(sctx->gen_group);
                                ^
61.           if (dctx->gen_group == NULL) {
62.               pkey_sm2_cleanup(dst);

crypto/ec/ec_lib.c:233:1: Parameter `a->cofactor->top`
  231.   }
  232.   
  233. > EC_GROUP *EC_GROUP_dup(const EC_GROUP *a)
  234.   {
  235.       EC_GROUP *t = NULL;

crypto/ec/ec_lib.c:243:10: Call
  241.       if ((t = EC_GROUP_new(a->meth)) == NULL)
  242.           return NULL;
  243.       if (!EC_GROUP_copy(t, a))
                  ^
  244.           goto err;
  245.   

crypto/ec/ec_lib.c:130:1: Parameter `src->cofactor->top`
    128.   }
    129.   
    130. > int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
    131.   {
    132.       if (dest->meth->group_copy == 0) {

crypto/ec/ec_lib.c:208:14: Call
    206.           if (!BN_copy(dest->order, src->order))
    207.               return 0;
    208.           if (!BN_copy(dest->cofactor, src->cofactor))
                        ^
    209.               return 0;
    210.       }

crypto/bn/bn_lib.c:280:1: <Offset trace>
278.   }
279.   
280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
281.   {
282.       bn_check_top(b);

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

crypto/bn/bn_lib.c:280:1: <Length trace>
278.   }
279.   
280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
281.   {
282.       bn_check_top(b);

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

crypto/bn/bn_lib.c:286:9: Call
      284.       if (a == b)
      285.           return a;
      286.       if (bn_wexpand(a, b->top) == NULL)
                     ^
      287.           return NULL;
      288.   

crypto/bn/bn_lib.c:942:1: Parameter `*a->d`
        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:290:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `EC_GROUP_dup` 
      288.   
      289.       if (b->top > 0)
      290.           memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
                     ^
      291.   
      292.       a->neg = b->neg;
