Fix possible crash in ImageStream::getLine()

Resolves: #1683633

poppler-0.73.0-image-stream-getline.patch

@@ -0,0 +1,27 @@
+From f4136a6353162db249f63ddb0f20611622ab61b4 Mon Sep 17 00:00:00 2001
+From: Albert Astals Cid <aacid@kde.org>
+Date: Wed, 27 Feb 2019 19:43:22 +0100
+Subject: [PATCH] ImageStream::getLine: fix crash on broken files
+
+Fixes #728
+---
+ poppler/Stream.cc | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/poppler/Stream.cc b/poppler/Stream.cc
+index 33537b0e..a41435ab 100644
+--- a/poppler/Stream.cc
++++ b/poppler/Stream.cc
+@@ -496,6 +496,9 @@ unsigned char *ImageStream::getLine() {
+   }
+  
+   int readChars = str->doGetChars(inputLineSize, inputLine);
++  if (unlikely(readChars == -1)) {
++      readChars = 0;
++  }
+   for ( ; readChars < inputLineSize; readChars++) inputLine[readChars] = EOF;
+   if (nBits == 1) {
+     unsigned char *p = inputLine;
+-- 
+2.20.1
+

poppler.spec

@@ -4,7 +4,7 @@
 Summary: PDF rendering library
 Name:    poppler
 Version: 0.73.0
-Release: 5%{?dist}
+Release: 6%{?dist}
 License: (GPLv2 or GPLv3) and GPLv2+ and LGPLv2+ and MIT
 URL:     http://poppler.freedesktop.org/
 Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.xz
@@ -28,6 +28,9 @@ Patch8:  poppler-0.73.0-negative-xref-indices.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=1665273
 Patch9:  poppler-0.73.0-check-catalog-is-dict.patch
 
+# https://bugzilla.redhat.com/show_bug.cgi?id=1683632
+Patch10:  poppler-0.73.0-image-stream-getline.patch
+
 BuildRequires: cmake
 BuildRequires: gcc-c++
 BuildRequires: gettext-devel
@@ -258,6 +261,10 @@ test "$(pkg-config --modversion poppler-splash)" = "%{version}"
 %{_mandir}/man1/*
 
 %changelog
+* Mon Mar 11 2019 Marek Kasik <mkasik@redhat.com> - 0.73.0-6
+- Fix possible crash on broken files in ImageStream::getLine()
+- Resolves: #1683633
+
 * Fri Mar 8 2019 Marek Kasik <mkasik@redhat.com> - 0.73.0-5
 - Synchronize previous patch with upstream
 - Related: #1665274