Merge branch 'PHP-7.4'

Author: nikic

ext/mbstring/php_mbregex.c

@@ -445,13 +445,18 @@ static php_mb_regex_t *php_mbregex_compile_pattern(const char *pattern, size_t p
 	OnigErrorInfo err_info;
 	OnigUChar err_str[ONIG_MAX_ERROR_MESSAGE_LEN];
 
+	if (!php_mb_check_encoding(pattern, patlen, _php_mb_regex_mbctype2name(enc))) {
+		php_error_docref(NULL, E_WARNING,
+			"Pattern is not valid under %s encoding", _php_mb_regex_mbctype2name(enc));
+		return NULL;
+	}
+
 	rc = zend_hash_str_find_ptr(&MBREX(ht_rc), (char *)pattern, patlen);
 	if (!rc || onig_get_options(rc) != options || onig_get_encoding(rc) != enc || onig_get_syntax(rc) != syntax) {
 		if ((err_code = onig_new(&retval, (OnigUChar *)pattern, (OnigUChar *)(pattern + patlen), options, enc, syntax, &err_info)) != ONIG_NORMAL) {
 			onig_error_code_to_str(err_str, err_code, &err_info);
 			php_error_docref(NULL, E_WARNING, "mbregex compile err: %s", err_str);
-			retval = NULL;
-			goto out;
+			return NULL;
 		}
 		if (rc == MBREX(search_re)) {
 			/* reuse the new rc? see bug #72399 */
@@ -461,7 +466,6 @@ static php_mb_regex_t *php_mbregex_compile_pattern(const char *pattern, size_t p
 	} else {
 		retval = rc;
 	}
-out:
 	return retval;
 }
 /* }}} */

ext/mbstring/tests/bug77370.phpt

@@ -7,5 +7,5 @@ Bug #77370 (Buffer overflow on mb regex functions - fetch_token)
 var_dump(mb_split("   \xfd",""));
 ?>
 --EXPECTF--
-Warning: mb_split(): mbregex compile err: invalid code point value in %sbug77370.php on line %d
+Warning: mb_split(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)

ext/mbstring/tests/bug77371.phpt

@@ -7,5 +7,5 @@ Bug #77371 (heap buffer overflow in mb regex functions - compile_string_node)
 var_dump(mb_ereg("()0\xfc00000\xfc00000\xfc00000\xfc",""));
 ?>
 --EXPECTF--
-Warning: mb_ereg(): mbregex compile err: invalid code point value in %sbug77371.php on line %d
+Warning: mb_ereg(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)

ext/mbstring/tests/bug77381.phpt

@@ -10,14 +10,14 @@ var_dump(mb_ereg("0000\\"."\xf5","0"));
 var_dump(mb_ereg("(?i)FFF00000000000000000\xfd",""));
 ?>
 --EXPECTF--
-Warning: mb_ereg(): mbregex compile err: invalid code point value in %sbug77381.php on line %d
+Warning: mb_ereg(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)
 
-Warning: mb_ereg(): mbregex compile err: invalid code point value in %sbug77381.php on line %d
+Warning: mb_ereg(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)
 
-Warning: mb_ereg(): mbregex compile err: invalid code point value in %sbug77381.php on line %d
+Warning: mb_ereg(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)
 
-Warning: mb_ereg(): mbregex compile err: invalid code point value in %sbug77381.php on line %d
+Warning: mb_ereg(): Pattern is not valid under UTF-8 encoding in %s on line %d
 bool(false)