From 9d7f329418139b0604071aee333d621c960915ca Mon Sep 17 00:00:00 2001
From: Qiumiao Zhang <zhangqiumiao1@huawei.com>
Date: Thu, 5 May 2022 10:35:14 +0800
Subject: [PATCH] fix null pointer dereference when paring
 ICMP6_ROUTER_ADVERTISE messages

---
 grub-core/net/icmp6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grub-core/net/icmp6.c b/grub-core/net/icmp6.c
index 56a3ec5..fb88961 100644
--- a/grub-core/net/icmp6.c
+++ b/grub-core/net/icmp6.c
@@ -480,7 +480,7 @@ grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
 
 	    /* May not have gotten slaac info, find a global address on this
 	      card.  */
-	    if (route_inf == NULL)
+	    if (route_inf == NULL && orig_inf != NULL)
 	      {
 		FOR_NET_NETWORK_LEVEL_INTERFACES (inf)
 		{
-- 
2.23.0

