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:463:1: Parameter `*a->d`
    461.   }
    462.   
    463. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    464.   {
    465.       bn_check_top(a);

crypto/bn/bn_lib.c:466:9: Call
    464.   {
    465.       bn_check_top(a);
    466.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    467.           return (0);
    468.       a->neg = 0;

crypto/bn/bn_lcl.h:676:1: Parameter `*a->d`
      674.   int bn_probable_prime_dh_coprime(BIGNUM *rnd, int bits, BN_CTX *ctx);
      675.   
      676. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
      677.   {
      678.       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:81:1: <Offset trace>
79.   }
80.   
81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
82.   {
83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:81:1: Parameter `n`
  79.   }
  80.   
  81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  82.   {
  83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:96:5: Assignment
  94.   
  95.       r->neg = a->neg;
  96.       nw = n / BN_BITS2;
            ^
  97.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
  98.           return (0);

crypto/bn/bn_shift.c:81:1: <Length trace>
79.   }
80.   
81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
82.   {
83.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:81:1: Parameter `*r->d`
  79.   }
  80.   
  81. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  82.   {
  83.       int i, nw, lb, rb;

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

crypto/bn/bn_lib.c:1014:1: Parameter `*a->d`
    1012.   }
    1013.   
    1014. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
    1015.   {
    1016.       return (words <= a->dmax) ? a : bn_expand2(a, words);

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

crypto/bn/bn_shift.c:113:5: Array access: Offset added: [0, 16] Size: [0, 536870848] by call to `BN_lshift` 
  111.               t[nw + i] = (l << lb) & BN_MASK2;
  112.           }
  113.       memset(t, 0, sizeof(*t) * nw);
             ^
  114.       r->top = a->top + nw + 1;
  115.       bn_correct_top(r);
