crypto/ec/ecp_smpl.c:1498: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 15 steps of the trace


crypto/ec/ecp_smpl.c:1397:1: Parameter `ctx->pool.used`
1395.   
1396.   
1397. > int ec_GFp_simple_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
1398.   	{
1399.   	/* return values:

crypto/ec/ecp_smpl.c:1433:9: Call
1431.   
1432.   	BN_CTX_start(ctx);
1433.   	tmp1 = BN_CTX_get(ctx);
                ^
1434.   	tmp2 = BN_CTX_get(ctx);
1435.   	Za23 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:288:1: Parameter `ctx->pool.used`
  286.   	}
  287.   
  288. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  289.   	{
  290.   	BIGNUM *ret;

crypto/ec/ecp_smpl.c:1434:9: Call
1432.   	BN_CTX_start(ctx);
1433.   	tmp1 = BN_CTX_get(ctx);
1434.   	tmp2 = BN_CTX_get(ctx);
                ^
1435.   	Za23 = BN_CTX_get(ctx);
1436.   	Zb23 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:288:1: Parameter `ctx->pool.used`
  286.   	}
  287.   
  288. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  289.   	{
  290.   	BIGNUM *ret;

crypto/ec/ecp_smpl.c:1435:9: Call
1433.   	tmp1 = BN_CTX_get(ctx);
1434.   	tmp2 = BN_CTX_get(ctx);
1435.   	Za23 = BN_CTX_get(ctx);
                ^
1436.   	Zb23 = BN_CTX_get(ctx);
1437.   	if (Zb23 == NULL) goto end;

crypto/bn/bn_ctx.c:288:1: Parameter `ctx->pool.used`
  286.   	}
  287.   
  288. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  289.   	{
  290.   	BIGNUM *ret;

crypto/ec/ecp_smpl.c:1436:9: Call
1434.   	tmp2 = BN_CTX_get(ctx);
1435.   	Za23 = BN_CTX_get(ctx);
1436.   	Zb23 = BN_CTX_get(ctx);
                ^
1437.   	if (Zb23 == NULL) goto end;
1438.   

crypto/bn/bn_ctx.c:288:1: Parameter `ctx->pool.used`
  286.   	}
  287.   
  288. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  289.   	{
  290.   	BIGNUM *ret;

crypto/ec/ecp_smpl.c:1498:2: Call
1496.   
1497.    end:
1498.   	BN_CTX_end(ctx);
         ^
1499.   	if (new_ctx != NULL)
1500.   		BN_CTX_free(new_ctx);

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--)
