+--- php-8.0.10/ext/date/lib/parse_tz.c.orig 2021-08-27 14:25:14.033549324 +0200
++++ php-8.0.10/ext/date/lib/parse_tz.c 2021-08-27 14:24:27.173547016 +0200
+@@ -1019,6 +1019,8 @@
+ timelib_tzinfo *timelib_parse_tzfile(const char *timezone, const timelib_tzdb *tzdb, int *error_code)
+ {
+ const unsigned char *tzf;
++ char *memmap = NULL;
++ size_t maplen;
+ timelib_tzinfo *tmp;
+ int version;
+ int transitions_result, types_result;
+@@ -1026,7 +1028,7 @@
+
+ *error_code = TIMELIB_ERROR_NO_ERROR;
+
+- if (seek_to_tz_position(&tzf, timezone, tzdb)) {
++ if (seek_to_tz_position(&tzf, timezone, &memmap, &maplen, tzdb)) {
+ tmp = timelib_tzinfo_ctor(timezone);
+
+ version = read_preamble(&tzf, tmp, &type);