From d4c391eab03ce768d7eaf483368d9cda4f9668df Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sun, 21 Oct 2018 11:10:23 +0200
Subject: range_enc_determine_range(): Don't dereference array on size=0

Change-Id: I5bbb10af8b8e8ebc22bf79f5468e71a41b5e74b3
Fixes: Coverity CID#182710
---
 src/osmo-bsc/arfcn_range_encode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/osmo-bsc/arfcn_range_encode.c b/src/osmo-bsc/arfcn_range_encode.c
index 84f9f635f..54d98a967 100644
--- a/src/osmo-bsc/arfcn_range_encode.c
+++ b/src/osmo-bsc/arfcn_range_encode.c
@@ -168,6 +168,10 @@ int range_enc_determine_range(const int *arfcns, const int size, int *f0)
 {
 	int max = 0;
 
+	/* don't dereference arfcns[] array if size is 0 */
+	if (size == 0)
+		return ARFCN_RANGE_128;
+
 	/*
 	 * Go for the easiest. And pick arfcns[0] == f0.
 	 */
-- 
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