From: Martin Pitt <martin.pitt@ubuntu.com>
Date: Mon, 15 Dec 2014 12:06:48 +0000 (+0100)
Subject: shared: time-dst: Avoid buffer overflow
X-Git-Tag: v219~989
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=e17fb3c1dd21929119968325c46ab98630446032

shared: time-dst: Avoid buffer overflow

Commit 681f9718 introduced an additional null terminator for the zone names.
Increase the allocation of "transitions" to actually make room for this.
---

diff --git a/src/shared/time-dst.c b/src/shared/time-dst.c
index 926d22b94..1ce6f721b 100644
--- a/src/shared/time-dst.c
+++ b/src/shared/time-dst.c
@@ -183,7 +183,8 @@ read_again:
                         return -EINVAL;
         }
 
-        transitions = malloc0(total_size + tzspec_len);
+        /* leave space for additional zone_names zero terminator */
+        transitions = malloc0(total_size + tzspec_len + 1);
         if (transitions == NULL)
                 return -EINVAL;