crypto/ec/ecp_smpl.c:291: error: BUFFER_OVERRUN_L3
  Offset added: [0, 16] Size: [0, 536870848] by call to `BN_lshift`.
Showing all 15 steps of the trace


crypto/ec/ecp_smpl.c:258:9: Call
256.       }
257.       BN_CTX_start(ctx);
258.       a = BN_CTX_get(ctx);
               ^
259.       b = BN_CTX_get(ctx);
260.       tmp_1 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:229:5: Call
  227.       }
  228.       /* OK, make sure the returned bignum is "zero" */
  229.       BN_zero(ret);
             ^
  230.       ctx->used++;
  231.       CTXDBG_RET(ctx, ret);

crypto/bn/bn_lib.c:393:1: Parameter `*a->d`
    391.   }
    392.   
    393. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    394.   {
    395.       bn_check_top(a);

crypto/bn/bn_lib.c:396:9: Call
    394.   {
    395.       bn_check_top(a);
    396.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    397.           return (0);
    398.       a->neg = 0;

crypto/bn/bn_lcl.h:660:1: Parameter `*a->d`
      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/ec/ecp_smpl.c:291:14: Call
289.           if (!BN_mod_mul(tmp_2, tmp_1, a, p, ctx))
290.               goto err;
291.           if (!BN_lshift(tmp_1, tmp_2, 2))
                    ^
292.               goto err;
293.           /* tmp_1 = 4*a^3 */

crypto/bn/bn_shift.c:83:1: <Offset trace>
81.   }
82.   
83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
84.   {
85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:83:1: Parameter `n`
  81.   }
  82.   
  83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  84.   {
  85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:97:5: Assignment
  95.       }
  96.   
  97.       nw = n / BN_BITS2;
             ^
  98.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
  99.           return (0);

crypto/bn/bn_shift.c:83:1: <Length trace>
81.   }
82.   
83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
84.   {
85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:83:1: Parameter `*r->d`
  81.   }
  82.   
  83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  84.   {
  85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:98:9: Call
  96.   
  97.       nw = n / BN_BITS2;
  98.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
                 ^
  99.           return (0);
  100.       r->neg = a->neg;

crypto/bn/bn_lib.c:946:1: Parameter `*a->d`
    944.   }
    945.   
    946. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
    947.   {
    948.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_shift.c:104:5: Assignment
  102.       rb = BN_BITS2 - lb;
  103.       f = a->d;
  104.       t = r->d;
             ^
  105.       t[a->top + nw] = 0;
  106.       if (lb == 0)

crypto/bn/bn_shift.c:115:5: Array access: Offset added: [0, 16] Size: [0, 536870848] by call to `BN_lshift` 
  113.               t[nw + i] = (l << lb) & BN_MASK2;
  114.           }
  115.       memset(t, 0, sizeof(*t) * nw);
             ^
  116.       r->top = a->top + nw + 1;
  117.       bn_correct_top(r);
