From 8c7c7100b5df8f0621eb414bc39ee1078bf6a213 Mon Sep 17 00:00:00 2001
From: hecke <hecke@erblast>
Date: Fri, 23 Jun 2017 08:55:01 +0200
Subject: [PATCH] add note that explains relaxed bytes-left check #6150

---
 src/libsystemd-network/lldp-neighbor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libsystemd-network/lldp-neighbor.c b/src/libsystemd-network/lldp-neighbor.c
index 03f6628ab08..f1fecba6fa4 100644
--- a/src/libsystemd-network/lldp-neighbor.c
+++ b/src/libsystemd-network/lldp-neighbor.c
@@ -250,6 +250,9 @@ int lldp_neighbor_parse(sd_lldp_neighbor *n) {
                                 return -EBADMSG;
                         }
 
+                        /* Note that after processing the SD_LLDP_TYPE_END left could still be > 0
+                         * as the message may contain padding (see IEEE 802.1AB-2016, sec. 8.5.12) */
+
                         goto end_marker;
 
                 case SD_LLDP_TYPE_CHASSIS_ID:
-- 
2.47.3