From 3cec34a443c76e06a21f0be01ce9eac936c8a6d4 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 11 Jun 2018 12:31:02 +0900
Subject: [PATCH] util-lib: reject too long path for timedate_is_valid()

This should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8827.
---
 src/basic/time-util.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index 71d6179ef..2e465296f 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -1326,6 +1326,9 @@ bool timezone_is_valid(const char *name, int log_level) {
         if (slash)
                 return false;
 
+        if (p - name >= PATH_MAX)
+                return false;
+
         t = strjoina("/usr/share/zoneinfo/", name);
 
         fd = open(t, O_RDONLY|O_CLOEXEC);
-- 
2.30.2