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
 }