diff --git a/exiv2-0.26-pentax_backport.patch b/exiv2-0.26-pentax_backport.patch
new file mode 100644
index 0000000..b052347
--- /dev/null
+++ b/exiv2-0.26-pentax_backport.patch
@@ -0,0 +1,20 @@
+diff -up exiv2-0.26/src/pentaxmn.cpp.pentax exiv2-0.26/src/pentaxmn.cpp
+--- exiv2-0.26/src/pentaxmn.cpp.pentax	2017-04-26 14:16:21.000000000 -0500
++++ exiv2-0.26/src/pentaxmn.cpp	2019-01-10 14:21:00.342499581 -0600
+@@ -1254,6 +1254,7 @@ namespace Exiv2 {
+             unsigned long lensID = 0x3ff;
+             unsigned long index  = 0;
+ 
++            // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Pentax.html#LensData
+             const ExifData::const_iterator lensInfo = metadata->findKey(ExifKey("Exif.PentaxDng.LensInfo")) != metadata->end()
+                                                     ? metadata->findKey(ExifKey("Exif.PentaxDng.LensInfo"))
+                                                     : metadata->findKey(ExifKey("Exif.Pentax.LensInfo"))
+@@ -1268,8 +1269,6 @@ namespace Exiv2 {
+                 // 0x0207 Pentax       LensInfo  Undefined  36 3 255 0 0 40 148 71 152 80 6 241 65 237 153 88 36 1 76 107 251 255 255 255 0 0 80 6 241 0 0 0 0 0 0 0 0
+                 unsigned long base   = 1;
+ 
+-                // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Pentax.html#LensData
+-                const ExifData::const_iterator lensInfo = metadata->findKey(ExifKey("Exif.Pentax.LensInfo"));
+                 unsigned int  autoAperture     = lensInfo->toLong(base+1) & 0x01 ;
+                 unsigned int  minAperture      = lensInfo->toLong(base+2) & 0x06 ;
+                 unsigned int  minFocusDistance = lensInfo->toLong(base+3) & 0xf8 ;
diff --git a/exiv2.spec b/exiv2.spec
index 9b02654..fe931d3 100644
--- a/exiv2.spec
+++ b/exiv2.spec
@@ -6,7 +6,7 @@
 Summary: Exif and Iptc metadata manipulation library
 Name:    exiv2
 Version: 0.26
-Release: 12%{?dist}
+Release: 13%{?dist}
 
 License: GPLv2+
 URL:     http://www.exiv2.org/
@@ -39,6 +39,11 @@ Patch25: exiv2-CVE-2018-8977.patch
 ## upstreamable patches
 Patch100: exiv2-doxygen.patch
 
+## upstream backports
+# https://bugzilla.redhat.com/show_bug.cgi?id=1585514
+# https://github.com/Exiv2/exiv2/issues/201
+Patch200: exiv2-0.26-pentax_backport.patch
+
 BuildRequires: cmake
 BuildRequires: expat-devel
 BuildRequires: gcc-c++
@@ -148,6 +153,9 @@ test -x %{buildroot}%{_libdir}/libexiv2.so
 
 
 %changelog
+* Thu Jan 10 2019 Rex Dieter <rdieter@fedoraproject.org> - 0.26-13
+- backport pentax DNG crasher (#1585514, exiv2#201)
+
 * Tue Jul 24 2018 Jan Grulich <jgrulich@redhat.com> - 0.26-12
 - Security fix for CVE-2017-17723, CVE-2017-17725, CVE-2018-10958, CVE-2018-10998,
   CVE-2018-11531, CVE-2018-12264, CVE-2018-12265, CVE-2018-14046, CVE-2018-5772,