From 0e2d56d6750209a777c1b76cc75dbff37cda1a95 Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jmvalin@jmvalin.ca>
Date: Fri, 2 Feb 2024 14:46:51 -0500
Subject: [PATCH] Add missing NULL pointer check

---
 src/extensions.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/extensions.c b/src/extensions.c
index aca17f01..bb6c0b02 100644
--- a/src/extensions.c
+++ b/src/extensions.c
@@ -232,7 +232,7 @@ opus_int32 opus_packet_extensions_generate(unsigned char *data, opus_int32 len,
                if (data) data[pos] = (extensions[i].id<<1) + extensions[i].len;
                pos++;
                if (extensions[i].len > 0) {
-                  data[pos] = extensions[i].data[0];
+                  if (data) data[pos] = extensions[i].data[0];
                   pos++;
                }
             } else {