From 5fcb1a06cb4b560fee6d1a9c676852bd8f67a9b2 Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@tele2.at>
Date: Mon, 29 Oct 2018 15:17:36 +0100
Subject: [PATCH] Add extra bounds check to syslog message parser

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
---
 proto.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/proto.c b/proto.c
index acbc251..5f1c03e 100644
--- a/proto.c
+++ b/proto.c
@@ -21,6 +21,8 @@ static int isleap(int year)
 
 static int mdays(int year, int month)
 {
+	if (month < 1 || month > 12)
+		return 0;
 	return (isleap(year) && month == 2) ? 29 : days[month - 1];
 }