From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 11 Jun 2018 03:31:02 +0000 (+0900)
Subject: util-lib: reject too long path for timedate_is_valid()
X-Git-Tag: v239~105^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1c73b60b4d9db8d5b47b32cedcec9d9de647194f;p=platform%2Fupstream%2Fsystemd.git

util-lib: reject too long path for timedate_is_valid()

This should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8827.
---

diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index 031b871..64ee777 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -1311,6 +1311,9 @@ 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);