From a8809f0a161e1f074bf2fe4f427081b5947376bb Mon Sep 17 00:00:00 2001
From: Vadim Yanitskiy <axilirator@gmail.com>
Date: Sun, 9 Feb 2020 04:12:53 +0700
Subject: conv: prevent theoretical NULL pointer dereference in
 osmo_conv_encode()

A caller shall never pass NULL to osmo_conv_encode().

Change-Id: Ice0050cd7c7e3fcbf57c2c73682ca28843a92d8b
Fixes: CID#208174
---
 src/conv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/conv.c b/src/conv.c
index a2c13def..06c4299b 100644
--- a/src/conv.c
+++ b/src/conv.c
@@ -36,6 +36,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <osmocom/core/utils.h>
 #include <osmocom/core/bits.h>
 #include <osmocom/core/conv.h>
 
@@ -87,6 +88,7 @@ osmo_conv_encode_init(struct osmo_conv_encoder *encoder,
                       const struct osmo_conv_code *code)
 {
 	memset(encoder, 0x00, sizeof(struct osmo_conv_encoder));
+	OSMO_ASSERT(code != NULL);
 	encoder->code = code;
 }
 
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