test/bntest.c:1110: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_sqr`.
Showing all 10 steps of the trace


test/bntest.c:1110:10: Call
1108.       BN_zero(zero);
1109.   
1110.       if (!BN_sqr(ret, a, ctx)
                 ^
1111.               || !equalBN("A^2", square, ret)
1112.               || !BN_mul(ret, a, a, ctx)

crypto/bn/bn_sqr.c:17:1: Parameter `ctx->stack.depth`
  15.    * I've just gone over this and it is now %20 faster on x86 - eay - 27 Jun 96
  16.    */
  17. > int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
  18.   {
  19.       int max, al;

crypto/bn/bn_sqr.c:32:5: Call
  30.       }
  31.   
  32.       BN_CTX_start(ctx);
            ^
  33.       rr = (a != r) ? r : BN_CTX_get(ctx);
  34.       tmp = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:181:1: Parameter `ctx->stack.depth`
    179.   }
    180.   
    181. > void BN_CTX_start(BN_CTX *ctx)
    182.   {
    183.       CTXDBG_ENTRY("BN_CTX_start", ctx);

crypto/bn/bn_sqr.c:100:5: Call
  98.       bn_check_top(rr);
  99.       bn_check_top(tmp);
  100.       BN_CTX_end(ctx);
             ^
  101.       return (ret);
  102.   }

crypto/bn/bn_ctx.c:195:1: Parameter `ctx->stack.depth`
    193.   }
    194.   
    195. > void BN_CTX_end(BN_CTX *ctx)
    196.   {
    197.       CTXDBG_ENTRY("BN_CTX_end", ctx);

crypto/bn/bn_ctx.c:201:27: Call
    199.           ctx->err_stack--;
    200.       else {
    201.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                     ^
    202.           /* Does this stack frame have anything to release? */
    203.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:271:1: <LHS trace>
269.   }
270.   
271. > static unsigned int BN_STACK_pop(BN_STACK *st)
272.   {
273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:271:1: Parameter `st->depth`
      269.   }
      270.   
      271. > static unsigned int BN_STACK_pop(BN_STACK *st)
      272.   {
      273.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:273:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_sqr` 
      271.   static unsigned int BN_STACK_pop(BN_STACK *st)
      272.   {
      273.       return st->indexes[--(st->depth)];
                        ^
      274.   }
      275.   
