From 24a8f6d369962f189ad808f538029179b1e7dc2f Mon Sep 17 00:00:00 2001
From: Randall Stewart <rrs@FreeBSD.org>
Date: Wed, 27 Jan 2021 13:32:52 -0500
Subject: [PATCH] When we are about to send down to the driver layer we need to
 make sure that the m_nextpkt field is NULL else the lower layers may do
 unwanted things.

Reviewed By:  gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D28377
---
 sys/netinet6/nd6.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index 386eb7cca922..497c0bfc10e8 100644
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -2460,6 +2460,7 @@ nd6_flush_holdchain(struct ifnet *ifp, struct mbuf *chain,
 	while (m_head) {
 		m = m_head;
 		m_head = m_head->m_nextpkt;
+		m->m_nextpkt = NULL;
 		error = nd6_output_ifp(ifp, ifp, m, dst, NULL);
 	}