Fixed bug #39791 (Crash in strtotime() on overly long relative date

multipliers).

NEWS

@@ -50,6 +50,8 @@ PHP                                                                        NEWS
 - Fixed FastCGI impersonation for persistent connections on Windows. (Dmitry)
 - Fixed wrong signature initialization in imagepng (Takeshi Abe)
 - Added optimization for imageline with horizontal and vertial lines (Pierre)
+- Fixed bug #39791 (Crash in strtotime() on overly long relative date
+  multipliers). (Ilia)
 - Fixed bug #39780 (PNG image with CRC/data error raises fatal error) (Pierre)
 - Fixed bug #39775 ("Indirect modification ..." message is not shown). (Dmitry)
 - Fixed bug #39763 (magic quotes are applied twice by ext/filter in

ext/date/lib/parse_date.re

@@ -590,7 +590,10 @@ static void timelib_set_relative(char **ptr, timelib_sll amount, int behavior, S
 {
 	const timelib_relunit* relunit;
 
-	relunit = timelib_lookup_relunit(ptr);
+	if (!(relunit = timelib_lookup_relunit(ptr))) {
+		return;
+	}
+
 	switch (relunit->unit) {
 		case TIMELIB_SECOND: s->time->relative.s += amount * relunit->multiplier; break;
 		case TIMELIB_MINUTE: s->time->relative.i += amount * relunit->multiplier; break;