crypto/bn/bn_mont.c:70: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 8 steps of the trace


crypto/bn/bn_mont.c:53:14: Call
51.       bn_check_top(tmp);
52.       if (a == b) {
53.           if (!BN_sqr(tmp, a, ctx))
                   ^
54.               goto err;
55.       } else {

crypto/bn/bn_sqr.c:17:1: Parameter `ctx->pool.used`
  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_mont.c:70:5: Call
68.       ret = 1;
69.    err:
70.       BN_CTX_end(ctx);
          ^
71.       return ret;
72.   }

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

crypto/bn/bn_ctx.c:204:13: Call
  202.           /* Does this stack frame have anything to release? */
  203.           if (fp < ctx->used)
  204.               BN_POOL_release(&ctx->pool, ctx->used - fp);
                     ^
  205.           ctx->used = fp;
  206.           /* Unjam "too_many" in case "get" had failed */

crypto/bn/bn_ctx.c:340:1: <LHS trace>
338.   }
339.   
340. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
341.   {
342.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:340:1: Parameter `p->used`
    338.   }
    339.   
    340. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
    341.   {
    342.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:342:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    340.   static void BN_POOL_release(BN_POOL *p, unsigned int num)
    341.   {
    342.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
               ^
    343.   
    344.       p->used -= num;
