crypto/bn/bn_mont.c:83: error: INTEGER_OVERFLOW_L2
  ([0, 2+max(0, `ctx->stack.depth`)] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 11 steps of the trace


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:61:11: Call
59.   
60.       BN_CTX_start(ctx);
61.       tmp = BN_CTX_get(ctx);
                ^
62.       if (tmp == NULL)
63.           goto err;

crypto/bn/bn_ctx.c:202:1: Parameter `ctx->stack.depth`
  200.   }
  201.   
  202. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  203.   {
  204.       BIGNUM *ret;

crypto/bn/bn_mont.c:83:5: Call
81.       ret = 1;
82.    err:
83.       BN_CTX_end(ctx);
          ^
84.       return ret;
85.   }

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, 2+max(0, ctx->stack.depth)] - 1):unsigned32 by call to `BN_CTX_end` 
    266.   static unsigned int BN_STACK_pop(BN_STACK *st)
    267.   {
    268.       return st->indexes[--(st->depth)];
                      ^
    269.   }
    270.   
