diff --git a/pcre-8.42-Fix-bad-auto-possessify-for-certain-classes.patch b/pcre-8.42-Fix-bad-auto-possessify-for-certain-classes.patch
new file mode 100644
index 0000000..c47ec5f
--- /dev/null
+++ b/pcre-8.42-Fix-bad-auto-possessify-for-certain-classes.patch
@@ -0,0 +1,65 @@
+From 952cac5f4a17e52aec7d0536f405b25428367840 Mon Sep 17 00:00:00 2001
+From: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
+Date: Fri, 17 Aug 2018 14:50:21 +0000
+Subject: [PATCH] Fix bad auto-possessify for certain classes.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1738 2f5784b3-3f2a-0410-8824-cb99058d5e15
+Petr Písař: Ported to 8.42.
+---
+ pcre_compile.c       | 4 ++--
+ testdata/testinput4  | 3 +++
+ testdata/testoutput4 | 4 ++++
+
+diff --git a/pcre_compile.c b/pcre_compile.c
+index 6dd8886..3991d6c 100644
+--- a/pcre_compile.c
++++ b/pcre_compile.c
+@@ -6,7 +6,7 @@
+ and semantics are as close as possible to those of the Perl 5 language.
+ 
+                        Written by Philip Hazel
+-           Copyright (c) 1997-2016 University of Cambridge
++           Copyright (c) 1997-2018 University of Cambridge
+ 
+ -----------------------------------------------------------------------------
+ Redistribution and use in source and binary forms, with or without
+@@ -3299,7 +3299,7 @@ for(;;)
+       if ((*xclass_flags & XCL_MAP) == 0)
+         {
+         /* No bits are set for characters < 256. */
+-        if (list[1] == 0) return TRUE;
++        if (list[1] == 0) return (*xclass_flags & XCL_NOT) == 0;
+         /* Might be an empty repeat. */
+         continue;
+         }
+diff --git a/testdata/testinput4 b/testdata/testinput4
+index 8bdbdac..63368c0 100644
+--- a/testdata/testinput4
++++ b/testdata/testinput4
+@@ -727,4 +727,7 @@
+ /\C(\W?ſ)'?{{/8
+     \\C(\\W?ſ)'?{{
+ 
++/[^\x{100}-\x{ffff}]*[\x80-\xff]/8
++    \x{99}\x{99}\x{99}
++
+ /-- End of testinput4 --/
+diff --git a/testdata/testoutput4 b/testdata/testoutput4
+index d43c123..69e812c 100644
+--- a/testdata/testoutput4
++++ b/testdata/testoutput4
+@@ -1277,4 +1277,8 @@ No match
+     \\C(\\W?ſ)'?{{
+ No match
+ 
++/[^\x{100}-\x{ffff}]*[\x80-\xff]/8
++    \x{99}\x{99}\x{99}
++ 0: \x{99}\x{99}\x{99}
++
+ /-- End of testinput4 --/
+-- 
+2.14.4
+
diff --git a/pcre.spec b/pcre.spec
index 88eaa6a..844c90d 100644
--- a/pcre.spec
+++ b/pcre.spec
@@ -2,7 +2,7 @@
 #%%global rcversion RC1
 Name:       pcre
 Version:    8.42
-Release:    %{?rcversion:0.}2%{?rcversion:.%rcversion}%{?dist}.1
+Release:    %{?rcversion:0.}3%{?rcversion:.%rcversion}%{?dist}
 %global myversion %{version}%{?rcversion:-%rcversion}
 Summary:    Perl-compatible regular expression library
 ## Source package only:
@@ -41,6 +41,10 @@ Patch3:     pcre-8.42-Fix-two-C-wrapper-bugs-unnoticed-for-years.patch
 # Fix an error message and locale handling in pcregrep tool,
 # in upstream after 8.42
 Patch4:     pcre-8.42-Fix-typos-in-pcrgrep.patch
+# Fix autopossessifying a repeated negative class with no characters less than
+# 256 that is followed by a positive class with only characters less than 256,
+# upstream bug #2300, in upstream after 8.42
+Patch5:     pcre-8.42-Fix-bad-auto-possessify-for-certain-classes.patch
 BuildRequires:  readline-devel
 BuildRequires:  autoconf
 BuildRequires:  automake
@@ -127,6 +131,7 @@ Utilities demonstrating PCRE capabilities like pcregrep or pcretest.
 %patch2 -p2
 %patch3 -p1
 %patch4 -p1
+%patch5 -p1
 # Because of rpath patch
 libtoolize --copy --force
 autoreconf -vif
@@ -221,6 +226,11 @@ make %{?_smp_mflags} check VERBOSE=yes
 %{_mandir}/man1/pcretest.*
 
 %changelog
+* Mon Aug 20 2018 Petr Pisar <ppisar@redhat.com> - 8.42-3
+- Fix autopossessifying a repeated negative class with no characters less than
+  256 that is followed by a positive class with only characters less than 256
+  (upstream bug #2300)
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 8.42-2.1
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild