!278 Fix potential segmentation fault

From: @renxichen 
Reviewed-by: @ZhouShuiQing, @xujing99 
Signed-off-by: @xujing99

Add-IMA-digest-list-support.patch

@@ -4,14 +4,14 @@ Date: Fri, 16 Jun 2023 11:35:21 +0800
 Subject: [PATCH] Add IMA digest list support
 
 ---
- build/files.c           | 302 ++++++++++++++++++++++++++++++++++++++--
+ build/files.c           | 305 ++++++++++++++++++++++++++++++++++++++--
  build/parsePreamble.c   |   3 +-
  macros.in               |   1 +
  plugins/Makefile.am     |   4 +
  plugins/selinux.c       |   3 +-
  rpmio/rpmpgp_internal.c |  32 +----
  rpmio/rpmpgp_internal.h |  29 ++++
- 7 files changed, 333 insertions(+), 41 deletions(-)
+ 7 files changed, 336 insertions(+), 41 deletions(-)
 
 diff --git a/build/files.c b/build/files.c
 index eb008ab..3fc3551 100644
@@ -337,7 +337,7 @@ index eb008ab..3fc3551 100644
  /**
   * Add directory (and all of its files) to the package manifest.
   * @param fl		package file tree walk data
-@@ -2584,6 +2796,58 @@ static void addPackageFileList (struct FileList_s *fl, Package pkg,
+@@ -2584,6 +2796,61 @@ static void addPackageFileList (struct FileList_s *fl, Package pkg,
      argvFree(fileNames);
  }
  
@@ -361,6 +361,9 @@ index eb008ab..3fc3551 100644
 +    if (!(s && *s))
 +	goto exit;
 +
++    if (!strchr(binRpm, '/'))
++	goto exit;
++
 +    av_brp[2] = strchr(binRpm, '/') + 1;
 +    rpmlog(RPMLOG_NOTICE, _("Generating digest list: %s\n"), s);
 +

rpm.spec

@@ -1,6 +1,6 @@
 Name:          rpm
 Version:       4.18.1
-Release:       8
+Release:       9
 Summary:       RPM Package Manager
 License:       GPLv2+
 URL:           http://www.rpm.org/
@@ -327,6 +327,9 @@ make clean
 %exclude %{_mandir}/man8/rpmspec.8.gz
 
 %changelog
+* Tue Sep 26 2023 renhongxun<renhongxun@h-partners.com> - 4.18.1-9
+- Fix potential segmentation fault
+
 * Fri Sep 08 2023 renhongxun<renhongxun@h-partners.com> - 4.18.1-8
 - support _disable_auto_rebuilddb macro in posttrans