crypto/bn/bn_exp.c:1096: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `bn_mul_mont_fixed_top`.
Showing all 21 steps of the trace


crypto/bn/bn_exp.c:592:1: Parameter `ctx->stack.depth`
590.    * http://www.daemonology.net/hyperthreading-considered-harmful/)
591.    */
592. > int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
593.                                 const BIGNUM *m, BN_CTX *ctx,
594.                                 BN_MONT_CTX *in_mont)

crypto/bn/bn_exp.c:636:5: Call
634.       }
635.   
636.       BN_CTX_start(ctx);
           ^
637.   
638.       /*

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
  169.   }
  170.   
  171. > void BN_CTX_start(BN_CTX *ctx)
  172.   {
  173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_exp.c:757:10: Call
755.   
756.       /* prepare a^1 in Montgomery domain */
757.       if (!bn_to_mont_fixed_top(&am, a, mont, ctx))
                ^
758.           goto err;
759.   

crypto/bn/bn_mont.c:222:1: Parameter `ctx->stack.depth`
  220.   }
  221.   
  222. > int bn_to_mont_fixed_top(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
  223.                            BN_CTX *ctx)
  224.   {

crypto/bn/bn_mont.c:225:12: Call
  223.                            BN_CTX *ctx)
  224.   {
  225.       return bn_mul_mont_fixed_top(r, a, &(mont->RR), mont, ctx);
                    ^
  226.   }
  227.   

crypto/bn/bn_mont.c:37:1: Parameter `ctx->stack.depth`
    35.   }
    36.   
    37. > int bn_mul_mont_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
    38.                             BN_MONT_CTX *mont, BN_CTX *ctx)
    39.   {

crypto/bn/bn_exp.c:1096:18: Call
1094.   
1095.               /* Multiply the result into the intermediate result */
1096.               if (!bn_mul_mont_fixed_top(&tmp, &tmp, &am, mont, ctx))
                         ^
1097.                   goto err;
1098.           }

crypto/bn/bn_mont.c:37:1: Parameter `ctx->stack.depth`
  35.   }
  36.   
  37. > int bn_mul_mont_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
  38.                             BN_MONT_CTX *mont, BN_CTX *ctx)
  39.   {

crypto/bn/bn_mont.c:60:5: Call
  58.           return 0;
  59.   
  60.       BN_CTX_start(ctx);
            ^
  61.       tmp = BN_CTX_get(ctx);
  62.       if (tmp == NULL)

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
    169.   }
    170.   
    171. > void BN_CTX_start(BN_CTX *ctx)
    172.   {
    173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_mont.c:67:14: Call
  65.       bn_check_top(tmp);
  66.       if (a == b) {
  67.           if (!bn_sqr_fixed_top(tmp, a, ctx))
                     ^
  68.               goto err;
  69.       } else {

crypto/bn/bn_sqr.c:27:1: Parameter `ctx->stack.depth`
    25.   }
    26.   
    27. > int bn_sqr_fixed_top(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
    28.   {
    29.       int max, al;

crypto/bn/bn_sqr.c:42:5: Call
    40.       }
    41.   
    42.       BN_CTX_start(ctx);
              ^
    43.       rr = (a != r) ? r : BN_CTX_get(ctx);
    44.       tmp = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
      169.   }
      170.   
      171. > void BN_CTX_start(BN_CTX *ctx)
      172.   {
      173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_sqr.c:104:5: Call
    102.       bn_check_top(rr);
    103.       bn_check_top(tmp);
    104.       BN_CTX_end(ctx);
               ^
    105.       return ret;
    106.   }

crypto/bn/bn_ctx.c:185:1: Parameter `ctx->stack.depth`
      183.   }
      184.   
      185. > void BN_CTX_end(BN_CTX *ctx)
      186.   {
      187.       CTXDBG("ENTER BN_CTX_end()", ctx);

crypto/bn/bn_ctx.c:191:27: Call
      189.           ctx->err_stack--;
      190.       else {
      191.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                       ^
      192.           /* Does this stack frame have anything to release? */
      193.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:266:1: <LHS trace>
264.   }
265.   
266. > static unsigned int BN_STACK_pop(BN_STACK *st)
267.   {
268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:266:1: Parameter `st->depth`
        264.   }
        265.   
        266. > static unsigned int BN_STACK_pop(BN_STACK *st)
        267.   {
        268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:268:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `bn_mul_mont_fixed_top` 
        266.   static unsigned int BN_STACK_pop(BN_STACK *st)
        267.   {
        268.       return st->indexes[--(st->depth)];
                          ^
        269.   }
        270.   
