From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 15 Aug 2021 11:34:05 +0000 (+0100)
Subject: service: make sure string read is null terminated
X-Git-Url: http://git.openwrt.org/?p=project%2Fprocd.git;a=commitdiff_plain;h=48f481b0bfbfdf54a03b767b9559405ad2404d6e

service: make sure string read is null terminated

Coverity CID: 1490007 String not null terminated
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---

diff --git a/service/service.c b/service/service.c
index b3286dc..419f96c 100644
--- a/service/service.c
+++ b/service/service.c
@@ -324,6 +324,9 @@ static void put_cgroups(struct blob_buf *b)
 		return;
 
 	ret = read(fd, &buf, sizeof(buf));
+	/* make sure buffer is NULL-terminated */
+	buf[sizeof(buf)-1] = '\0';
+
 	close(fd);
 
 	if (ret < 2)