From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 22 Jan 2017 22:09:50 +0000 (+0100)
Subject: guard against 0
X-Git-Tag: taler-0.2.1~349
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=69a00f58f5fb67e57dcfb5de753680dca9f004e3;p=oweals%2Fgnunet.git

guard against 0
---

diff --git a/src/cadet/gnunet-service-cadet-new.c b/src/cadet/gnunet-service-cadet-new.c
index 78d4206f0..76bc4ec48 100644
--- a/src/cadet/gnunet-service-cadet-new.c
+++ b/src/cadet/gnunet-service-cadet-new.c
@@ -644,7 +644,8 @@ check_data (void *cls,
                    buf,
                    sizeof (pa));
     payload_claimed_size = ntohs (pa.size);
-    if (payload_size < payload_claimed_size)
+    if ( (payload_size < payload_claimed_size) ||
+         (0 == payload_claimed_size) )
     {
       GNUNET_break_op (0);
       return GNUNET_SYSERR;