Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fixed bug #68739 (Missing break / control flow in curl)
  Fixed bug #68740 (NULL Pointer Dereference)
  Fixed bug #68677 (Use After Free in OPcache)

ext/curl/interface.c

@@ -2847,6 +2847,7 @@ static int _php_curl_setopt(php_curl *ch, long option, zval **zvalue TSRMLS_DC)
 					curl_easy_setopt(ch->cp, CURLOPT_SHARE, sh->share);
 				}
 			}
+			break;
 
 #if LIBCURL_VERSION_NUM >= 0x071500 /* Available since 7.21.0 */
 		case CURLOPT_FNMATCH_FUNCTION:

ext/ereg/regex/regcomp.c

@@ -1284,6 +1284,10 @@ int c;
 	register int ncols = (g->ncsets+(CHAR_BIT-1)) / CHAR_BIT;
 	register unsigned uc = (unsigned char)c;
 
+	if (!g->setbits) {
+		return(0);
+	}
+
 	for (i = 0, col = g->setbits; i < ncols; i++, col += g->csetsize)
 		if (col[uc] != 0)
 			return(1);

ext/opcache/zend_shared_alloc.c

@@ -346,10 +346,10 @@ void *_zend_shared_memdup(void *source, size_t size, zend_bool free_source TSRML
 	retval = ZCG(mem);;
 	ZCG(mem) = (void*)(((char*)ZCG(mem)) + ZEND_ALIGNED_SIZE(size));
 	memcpy(retval, source, size);
+	zend_shared_alloc_register_xlat_entry(source, retval);
 	if (free_source) {
 		interned_efree((char*)source);
 	}
-	zend_shared_alloc_register_xlat_entry(source, retval);
 	return retval;
 }