From 1fe5c008d6e3080aa94bac22580a288822f1cc20 Mon Sep 17 00:00:00 2001
From: Michal Nowak <mnowak@isc.org>
Date: Thu, 18 May 2023 17:57:14 +0200
Subject: [PATCH] Ensure "wrap" variable is non-NULL

RUNTIME_CHECK on the "wrap" variable avoids possible NULL dereference:

    thread.c: In function 'thread_wrap':
    thread.c:60:15: error: dereference of possibly-NULL 'wrap' [CWE-690] [-Werror=analyzer-possible-null-dereference]
       60 |         *wrap = (struct thread_wrap){

The RUNTIME_CHECK was there before
7d1ceaf35dbc25dfbca32deffa7f6ff8f452e75f.
---
 lib/isc/thread.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/isc/thread.c b/lib/isc/thread.c
index 36ade47f1f..d0dc60c275 100644
--- a/lib/isc/thread.c
+++ b/lib/isc/thread.c
@@ -57,6 +57,7 @@ struct thread_wrap {
 static struct thread_wrap *
 thread_wrap(isc_threadfunc_t func, void *arg) {
 	struct thread_wrap *wrap = malloc(sizeof(*wrap));
+	RUNTIME_CHECK(wrap != NULL);
 	*wrap = (struct thread_wrap){
 		.func = func,
 		.arg = arg,