!66 backport some patches from upstream

From: @tmacbb 
Reviewed-by: @zengwefeng 
Signed-off-by: @zengwefeng

backport-add-NULL-pointer-check-when-ntpd-deletes-the-last-interface.patch

@@ -0,0 +1,37 @@
+From 6f92672308e9ff2ff72f1d929b6887ab24787e42 Mon Sep 17 00:00:00 2001
+From: Harlen Stenn <stenn@ntp.org>
+Date: Tue, 20 Jun 2023 18:41:55 +0000
+Subject: [PATCH] add NULL pointer check when ntpd deletes the last interface
+
+Conflict:NA
+Reference:https://bugs.ntp.org/attachment.cgi?id=1854&action=diff
+
+---
+ include/ntp_lists.h | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/include/ntp_lists.h b/include/ntp_lists.h
+index d741974..37befc0 100644
+--- a/include/ntp_lists.h
++++ b/include/ntp_lists.h
+@@ -181,7 +181,7 @@ do {								\
+ 
+ #define UNLINK_EXPR_SLIST(punlinked, listhead, expr, nextlink,	\
+ 			  entrytype)				\
+-do {								\
++if (NULL != (listhead)) {						\
+ 	entrytype **ppentry;					\
+ 								\
+ 	ppentry = &(listhead);					\
+@@ -202,6 +202,8 @@ do {								\
+ 	} else {						\
+ 		(punlinked) = NULL;				\
+ 	}							\
++} else do {                     \
++    (punlinked) = NULL;                 \
+ } while (FALSE)
+ 
+ #define UNLINK_SLIST(punlinked, listhead, ptounlink, nextlink,	\
+-- 
+2.27.0
+

ntp.spec

@@ -2,7 +2,7 @@
 
 Name:                  ntp
 Version:               4.2.8p15
-Release:               7
+Release:               8
 Summary:               A protocol designed to synchronize the clocks of computers over a network
 License:               MIT and BSD and BSD with advertising
 URL:                   https://www.ntp.org/
@@ -27,6 +27,7 @@ Patch4:                fix-multiple-defination-with-gcc-10.patch
 Patch5:                Do-not-use-PTHREAD_STACK_MIN-on-glibc.patch
 Patch6:                fix-MD5-manpage.patch
 Patch7:                backport-CVE-2023-26551-CVE-2023-26552-CVE-2023-26553-CVE-2023-26554.patch
+Patch8:                backport-add-NULL-pointer-check-when-ntpd-deletes-the-last-interface.patch
 
 BuildRequires:	       libcap-devel openssl-devel libedit-devel libevent-devel pps-tools-devel
 BuildRequires:         autogen autogen-libopts-devel systemd gcc perl-generators perl-HTML-Parser
@@ -210,6 +211,12 @@ make check
 %{_mandir}/man8/*.8*
 
 %changelog
+* Wed Jun 21 2023 liubo <liubo335@huawei.com> - 4.2.8p15-8
+- Type:bugfix
+- ID:
+- SUG:NA
+- DESC:add NULL pointer check when ntpd deletes the last interface
+
 * Fri May 12 2023 chengyechun <chengyechun1@huawei.com> - 4.2.8p15-7
 - Type:CVE
 - ID:CVE-2023-26551,CVE-2023-26552,CVE-2023-26553,CVE-2023-26554