From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 9 Feb 2022 08:47:53 +0000 (+0100)
Subject: conf-parser: refuse section headers with control characters early, just in case
X-Git-Tag: v251-rc1~319^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cec7f09dc8beb21afcae981dbe3543686f793810;p=thirdparty%2Fsystemd.git

conf-parser: refuse section headers with control characters early, just in case
---

diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index ebbfa0d6c26..dbf5cc2fcd4 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -194,6 +194,9 @@ static int parse_line(
                 if (!n)
                         return log_oom();
 
+                if (!string_is_safe(n))
+                        return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EBADMSG), "Bad characters in section header '%s'", l);
+
                 if (sections && !nulstr_contains(sections, n)) {
                         bool ignore;
                         const char *t;