Fix memory leak for subroutine call with more than 10 captured groups to be

saved.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1517 2f5784b3-3f2a-0410-8824-cb99058d5e15

2 files changed, 9 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index d962488..fe2efb2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,7 @@
 ChangeLog for PCRE
 ------------------
 
-Version 8.37 xx-xxx-201x
+Version 8.37 xx-xxx-2015
 ------------------------
 
 1.  When an (*ACCEPT) is triggered inside capturing parentheses, it arranges 
@@ -19,7 +19,10 @@ Version 8.37 xx-xxx-201x
     
 4.  An attempt to do global matching in pcretest with a zero-length ovector
     caused a crash. 
-
+    
+5.  Fixed a memory leak during matching that could occur for a subpattern
+    subroutine call (recursive or otherwise) if the number of captured groups
+    that had to be saved was greater than ten.
 
 
 Version 8.36 26-September-2014
diff --git a/pcre_exec.c b/pcre_exec.c
index bb5620d..607aad8 100644
--- a/pcre_exec.c
+++ b/pcre_exec.c
@@ -1840,7 +1840,11 @@ for (;;)
         are defined in a range that can be tested for. */
 
         if (rrc >= MATCH_BACKTRACK_MIN && rrc <= MATCH_BACKTRACK_MAX)
+          { 
+          if (new_recursive.offset_save != stacksave)
+            (PUBL(free))(new_recursive.offset_save);
           RRETURN(MATCH_NOMATCH);
+          } 
 
         /* Any return code other than NOMATCH is an error. */