Add check for ports to avoid Segmentation fault

(cherry picked from commit fc596b2223d1d85c99945f5e05c1776fe703229f)

Add-check-for-ports-to-avoid-Segmentation-fault.patch

@@ -0,0 +1,37 @@
+From d7bd15792ea3d2613aa5a0b09d948dc2ef77dfcf Mon Sep 17 00:00:00 2001
+From: lingsheng <lingsheng@huawei.com>
+Date: Wed, 27 Jan 2021 15:00:32 +0800
+Subject: [PATCH] Add check for ports to avoid Segmentation fault
+
+---
+ tools/umax_pp.c | 13 ++++++++-----
+ 1 file changed, 8 insertions(+), 5 deletions(-)
+
+diff --git a/tools/umax_pp.c b/tools/umax_pp.c
+index 7b127e3..00ffea9 100644
+--- a/tools/umax_pp.c
++++ b/tools/umax_pp.c
+@@ -355,12 +355,15 @@ main (int argc, char **argv)
+       if (rc != 1)
+ 	{
+ 	  ports = sanei_parport_find_port ();
+-	  i = 0;
+-	  rc = 0;
+-	  while ((ports[i] != NULL) && (rc != 1))
++	  if (ports != NULL)
+ 	    {
+-	      rc = sanei_umax_pp_initPort (strtol (ports[i], NULL, 16), NULL);
+-	      i++;
++	      i = 0;
++	      rc = 0;
++	      while ((ports[i] != NULL) && (rc != 1))
++	        {
++	          rc = sanei_umax_pp_initPort (strtol (ports[i], NULL, 16), NULL);
++	          i++;
++	        }
+ 	    }
+ 	}
+       if (rc != 1)
+-- 
+2.23.0
+

sane-backends.spec

@@ -3,7 +3,7 @@
 
 Name:              sane-backends
 Version:           1.0.28
-Release:           8
+Release:           9
 Summary:           Scanner access software
 License:           GPLv2+ and GPLv2+ with exceptions and Public Domain and IJG and LGPLv2+ and MIT
 URL:               http://www.sane-project.org
@@ -23,6 +23,7 @@ Patch0001:         sane-xerox-mfp-blacklist-C460-for-JPEG.patch
 Patch0002:         sane-genesys-vector-glibcxxassert.patch
 Patch0003:         CVE-2020-12861-CVE-2020-12866-CVE-2020-12864.patch
 Patch0004:         CVE-2020-12867.patch
+Patch0005:         Add-check-for-ports-to-avoid-Segmentation-fault.patch
 
 %description
 SANE (Scanner Access Now Easy) is a sane and simple interface to both local and networked scanners
@@ -205,6 +206,9 @@ exit 0
 %{_unitdir}/*
 
 %changelog
+* Wed Jan 27 2021 lingsheng <lingsheng@huawei.com> - 1.0.28-9
+- Add check for ports to avoid Segmentation fault
+
 * Mon Jan 18 2021 zhanghua <zhanghua40@huawei.com> - 1.0.28-8
 - fix CVE-2020-12867