Fix restoring a verb chaing list when exiting a JIT-compiled recursive function

pcre2-10.34-Fix-control-verb-chain-restoration-issue-in-JIT.patch

@@ -0,0 +1,55 @@
+From a6749bb6c7c6fbfe849fb7e4e8dcf9d0e767d3e4 Mon Sep 17 00:00:00 2001
+From: zherczeg <zherczeg@6239d852-aaf2-0410-a92c-79f79f948069>
+Date: Mon, 10 Feb 2020 10:18:01 +0000
+Subject: [PATCH] Fix control verb chain restoration issue in JIT.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1217 6239d852-aaf2-0410-a92c-79f79f948069
+Petr Písař: Ported to 10.34.
+---
+ src/pcre2_jit_compile.c | 8 ++++----
+ src/pcre2_jit_test.c    | 1 +
+
+diff --git a/src/pcre2_jit_compile.c b/src/pcre2_jit_compile.c
+index 7874fac..10665a8 100644
+--- a/src/pcre2_jit_compile.c
++++ b/src/pcre2_jit_compile.c
+@@ -2693,8 +2693,8 @@ while (cc < ccend)
+       }
+     if (common->control_head_ptr != 0 && !control_head_found)
+       {
+-      shared_srcw[0] = common->control_head_ptr;
+-      shared_count = 1;
++      private_srcw[0] = common->control_head_ptr;
++      private_count = 1;
+       control_head_found = TRUE;
+       }
+     cc += 1 + 2 + cc[1];
+@@ -2704,8 +2704,8 @@ while (cc < ccend)
+     SLJIT_ASSERT(common->control_head_ptr != 0);
+     if (!control_head_found)
+       {
+-      shared_srcw[0] = common->control_head_ptr;
+-      shared_count = 1;
++      private_srcw[0] = common->control_head_ptr;
++      private_count = 1;
+       control_head_found = TRUE;
+       }
+     cc++;
+diff --git a/src/pcre2_jit_test.c b/src/pcre2_jit_test.c
+index a188724..187e565 100644
+--- a/src/pcre2_jit_test.c
++++ b/src/pcre2_jit_test.c
+@@ -861,6 +861,7 @@ static struct regression_test_case regression_test_cases[] = {
+ 	{ MU, A, 0, 0 | F_NOMATCH, "(?(?=a)a(*THEN)b|ad)", "ad" },
+ 	{ MU, A, 0, 0, "(?!(?(?=a)ab|b(*THEN)d))bn|bnn", "bnn" },
+ 	{ MU, A, 0, 0, "(?=(*THEN: ))* ", " " },
++	{ MU, A, 0, 0, "a(*THEN)(?R) |", "a" },
+ 
+ 	/* Recurse and control verbs. */
+ 	{ MU, A, 0, 0, "(a(*ACCEPT)b){0}a(?1)b", "aacaabb" },
+-- 
+2.21.1
+

pcre2.spec

@@ -9,7 +9,7 @@
 #%%global rcversion RC1
 Name:       pcre2
 Version:    10.34
-Release:    %{?rcversion:0.}5%{?rcversion:.%rcversion}%{?dist}.1
+Release:    %{?rcversion:0.}6%{?rcversion:.%rcversion}%{?dist}
 %global     myversion %{version}%{?rcversion:-%rcversion}
 Summary:    Perl-compatible regular expression library
 # the library:                          BSD with exceptions
@@ -71,6 +71,9 @@ Patch6:     pcre2-10.34-Fix-bug-in-processing-DEFINE-.-within-lookbehind-ass.pat
 # Prevent from a stack exhaustion when studying a pattern for nested groups by
 # putting a limit of 1000 recursive calls, in upstream after 10.34
 Patch7:     pcre2-10.34-Limit-function-recursion-in-pcre2_study-to-avoid-sta.patch
+# Fix restoring a verb chaing list when exiting a JIT-compiled recursive
+# function, in upstream after 10.34
+Patch8:     pcre2-10.34-Fix-control-verb-chain-restoration-issue-in-JIT.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  coreutils
@@ -156,6 +159,7 @@ Utilities demonstrating PCRE2 capabilities like pcre2grep or pcre2test.
 %patch5 -p1
 %patch6 -p1
 %patch7 -p1
+%patch8 -p1
 # Because of multilib patch
 libtoolize --copy --force
 autoreconf -vif
@@ -253,6 +257,10 @@ make %{?_smp_mflags} check VERBOSE=yes
 %{_mandir}/man1/pcre2test.*
 
 %changelog
+* Mon Feb 17 2020 Petr Pisar <ppisar@redhat.com> - 10.34-6
+- Fix restoring a verb chaing list when exiting a JIT-compiled recursive
+  function
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 10.34-5.1
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild