From: Philipp Meier <philipp.meier@westermo.com>
Date: Tue, 8 Nov 2022 13:38:37 +0000 (+0100)
Subject: jail: correctly check for null pointer
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=24f6bc4322754a753e4e3e413659d542fa798c7b;p=project%2Fprocd.git

jail: correctly check for null pointer

Handle case where opts.sysctl is not used.

Signed-off-by: Philipp Meier <philipp.meier@westermo.com>
---

diff --git a/jail/jail.c b/jail/jail.c
index ce6b268..31b64e5 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -215,6 +215,10 @@ static void free_hooklist(struct hook_execvpe **hooklist)
 
 static void free_sysctl(void) {
 	struct sysctl_val *cur;
+
+	if (!opts.sysctl)
+		return;
+
 	cur = *opts.sysctl;
 
 	while (cur) {