Upstream patch to fix buffer overflow for forward reference within backward assertion...

[pcre3.git] / pcre_compile.c

diff --git a/pcre_compile.c b/pcre_compile.c
index ae0027b8253cacfc78902968692f880f1284aeb8..c76ca1418d97679764ff32c4370cc74a3f06e741 100644 (file)
--- a/pcre_compile.c
+++ b/pcre_compile.c
@@ -9265,7 +9265,7 @@ OP_RECURSE that are not fixed length get a diagnosic with a useful offset. The
 exceptional ones forgo this. We scan the pattern to check that they are fixed
 length, and set their lengths. */
 
-if (cd->check_lookbehind)
+if (errorcode == 0 && cd->check_lookbehind)
   {
   pcre_uchar *cc = (pcre_uchar *)codestart;