pcre2/pcre2-10.31-Fixed-atomic-group-backtracking-bug.patch

68 lines
1.7 KiB
Diff

From bba8a81a820ffcfc9c88adb0055e12bad66eee4e Mon Sep 17 00:00:00 2001
From: ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069>
Date: Mon, 16 Jul 2018 15:24:32 +0000
Subject: [PATCH] Fixed atomic group backtracking bug.
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@965 6239d852-aaf2-0410-a92c-79f79f948069
Petr Písař: Ported to 8.31.
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
src/pcre2_match.c | 2 +-
testdata/testinput1 | 6 ++++++
testdata/testoutput1 | 8 ++++++++
3 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/pcre2_match.c b/src/pcre2_match.c
index ce96016..c294049 100644
--- a/src/pcre2_match.c
+++ b/src/pcre2_match.c
@@ -5509,7 +5509,7 @@ fprintf(stderr, "++ op=%d\n", *Fecode);
frame so that it points to the final branch. */
case OP_ONCE:
- Fback_frame = ((char *)F - (char *)P) + frame_size;
+ Fback_frame = ((char *)F - (char *)P);
for (;;)
{
uint32_t y = GET(P->ecode,1);
diff --git a/testdata/testinput1 b/testdata/testinput1
index 1b3191c..cc11288 100644
--- a/testdata/testinput1
+++ b/testdata/testinput1
@@ -6202,4 +6202,10 @@ ef) x/x,mark
/(?<=(?=.){4,5}x)/
+/(?>a(*:1))(?>b(*:1))(*SKIP:1)x|.*/no_start_optimize
+ abc
+
+/(?>a(*:1))(?>b)(*SKIP:1)x|.*/no_start_optimize
+ abc
+
# End of testinput1
diff --git a/testdata/testoutput1 b/testdata/testoutput1
index 06469fa..2fd2d48 100644
--- a/testdata/testoutput1
+++ b/testdata/testoutput1
@@ -9841,4 +9841,12 @@ No match
/(?<=(?=.){4,5}x)/
+/(?>a(*:1))(?>b(*:1))(*SKIP:1)x|.*/no_start_optimize
+ abc
+ 0: abc
+
+/(?>a(*:1))(?>b)(*SKIP:1)x|.*/no_start_optimize
+ abc
+ 0: abc
+
# End of testinput1
--
2.14.4