bug70345_2.diff

diff --git a/ext/pcre/php_pcre.c b/ext/pcre/php_pcre.c
index 55ca8fa..6fdde04 100644
--- a/ext/pcre/php_pcre.c
+++ b/ext/pcre/php_pcre.c
@@ -758,7 +758,7 @@ PHPAPI void php_pcre_match_impl(pcre_cache_entry *pce, char *subject, int subjec
 			/* If subpatterns array has been passed, fill it in with values. */
 			if (subpats != NULL) {
 				/* Try to get the list of substrings and display a warning if failed. */
-				if (pcre_get_substring_list(subject, offsets, count, &stringlist) < 0) {
+				if (offsets[1] - offsets[0] < 0 || pcre_get_substring_list(subject, offsets, count, &stringlist) < 0) {
 					if (subpat_names) {
 						efree(subpat_names);
 					}
@@ -1177,7 +1177,7 @@ PHPAPI zend_string *php_pcre_replace_impl(pcre_cache_entry *pce, zend_string *su
 		piece = subject + start_offset;
 
 		/* if (EXPECTED(count > 0 && (limit == -1 || limit > 0))) */
-		if (EXPECTED(count > 0 && limit)) {
+		if (EXPECTED(count > 0 && offsets[1] - offsets[0] >= 0 && limit)) {
 			if (UNEXPECTED(replace_count)) {
 				++*replace_count;
 			}
@@ -1799,7 +1799,7 @@ PHPAPI void php_pcre_split_impl(pcre_cache_entry *pce, char *subject, int subjec
 		}
 
 		/* If something matched */
-		if (count > 0) {
+		if (count > 0 && offsets[1] - offsets[0] >= 0) {
 			if (!no_empty || &subject[offsets[0]] != last_match) {
 
 				if (offset_capture) {