From 6d51b3afc7b344db932533cb6c99b208628a2f22 Mon Sep 17 00:00:00 2001
From: Guillem Jover <gjover@sipwise.com>
Date: Fri, 5 Feb 2021 13:37:59 +0100
Subject: [PATCH] TT#108003 Fix off-by-one check dtmf_samples()

The dtmf_freqs array contains one less element than the check was
allowing for.

Change-Id: I783fa6bcd0bd79fad9886ee53e7a990e504ecff8
Warned-by: coverity
---
 lib/dtmflib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dtmflib.c b/lib/dtmflib.c
index 9289224ed..466d8efbe 100644
--- a/lib/dtmflib.c
+++ b/lib/dtmflib.c
@@ -47,7 +47,7 @@ void dtmf_samples(void *buf, unsigned long offset, unsigned long num, unsigned i
 		return;
 	}
 
-	if (event > G_N_ELEMENTS(dtmf_freqs)) {
+	if (event >= G_N_ELEMENTS(dtmf_freqs)) {
 		ilog(LOG_WARN | LOG_FLAG_LIMIT, "Unsupported DTMF event %u", event);
 		memset(buf, 0, num * 2);
 		return;