crypto/bn/bn_mont.c:119: 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:104:8: Call
102.   	if (a == b)
103.   		{
104.   		if (!BN_sqr(tmp,a,ctx)) goto err;
              ^
105.   		}
106.   	else

crypto/bn/bn_sqr.c:65:1: Parameter `ctx->pool.used`
  63.   /* r must not be a */
  64.   /* I've just gone over this and it is now %20 faster on x86 - eay - 27 Jun 96 */
  65. > int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
  66.   	{
  67.   	int max,al;

crypto/bn/bn_mont.c:119:2: Call
117.   	ret=1;
118.   err:
119.   	BN_CTX_end(ctx);
        ^
120.   	return(ret);
121.   	}

crypto/bn/bn_ctx.c:270:1: Parameter `ctx->pool.used`
  268.   	}
  269.   
  270. > void BN_CTX_end(BN_CTX *ctx)
  271.   	{
  272.   	CTXDBG_ENTRY("BN_CTX_end", ctx);

crypto/bn/bn_ctx.c:280:4: Call
  278.   		/* Does this stack frame have anything to release? */
  279.   		if(fp < ctx->used)
  280.   			BN_POOL_release(&ctx->pool, ctx->used - fp);
            ^
  281.   		ctx->used = fp;
  282.   		/* Unjam "too_many" in case "get" had failed */

crypto/bn/bn_ctx.c:438:1: <LHS trace>
436.   	}
437.   
438. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
439.   	{
440.   	unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:438:1: Parameter `p->used`
    436.   	}
    437.   
    438. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
    439.   	{
    440.   	unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:440:2: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    438.   static void BN_POOL_release(BN_POOL *p, unsigned int num)
    439.   	{
    440.   	unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
            ^
    441.   	p->used -= num;
    442.   	while(num--)
