From dc4e1c882d28db17064bd4fb788775a86ebfe066 Mon Sep 17 00:00:00 2001

From: Andreas Gerstmayr <agerstmayr@redhat.com>

Date: Mon, 27 Jun 2022 17:12:27 +0200

Subject: [PATCH] Prometheus: Fix integer overflow in rate interval calculation

 on 32-bit architectures

diff --git a/pkg/tsdb/prometheus/buffered/time_series_query.go b/pkg/tsdb/prometheus/buffered/time_series_query.go

index 40db2d9100..0af2d3ecab 100644

--- a/pkg/tsdb/prometheus/buffered/time_series_query.go

+++ b/pkg/tsdb/prometheus/buffered/time_series_query.go

@@ -326,7 +326,7 @@ func calculateRateInterval(interval time.Duration, scrapeInterval string, interv

 		return time.Duration(0)

 	}

-	rateInterval := time.Duration(int(math.Max(float64(interval+scrapeIntervalDuration), float64(4)*float64(scrapeIntervalDuration))))

+	rateInterval := time.Duration(int64(math.Max(float64(interval+scrapeIntervalDuration), float64(4)*float64(scrapeIntervalDuration))))

 	return rateInterval

 }