!161 net: Fix NULL pointer dereference when parsing ICMP6_ROUTER_ADVERTISE messages

From: @sun_hai_10 
Reviewed-by: @t_feng 
Signed-off-by: @t_feng

backport-fix-null-pointer-dereference-when-paring-ICMP6_ROUTE.patch

@@ -0,0 +1,26 @@
+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
+

grub.patches

@@ -207,3 +207,4 @@ Patch0207: backport-grub-core-loader-i386-efi-linux.c-do-not-validate-ke.patch
 Patch0208: backport-grub-core-loader-arm64-linux.c-do-not-validate-kerne.patch
 Patch0209: backport-grub-core-loader-efi-chainloader.c-do-not-validate-c.patch
 Patch0210: backport-grub-core-loader-efi-linux.c-drop-now-unused-grub_li.patch
+Patch0211: backport-fix-null-pointer-dereference-when-paring-ICMP6_ROUTE.patch

grub2.spec

@@ -14,7 +14,7 @@
 Name:		grub2
 Epoch:		1
 Version:	2.06
-Release:	7
+Release:	8
 Summary:	Bootloader with support for Linux, Multiboot and more
 License:	GPLv3+
 URL:		http://www.gnu.org/software/grub/
@@ -436,6 +436,12 @@ fi
 %{_datadir}/man/man*
 
 %changelog
+* Thu May 05 2022 sunhai <sunhai10@huawei.com> - 1:2.06-8
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:fix PXE boot in IPv6 network when paring ICMP6_ROUTE_ADVERTISE messages
+
 * Sun Apr 24 2022 zhangqiumiao <zhangqiumiao1@huawei.com> - 2.06-7
 - Type:bugfix
 - CVE:NA