Fixed #28209 -- Made date-based generic views return a 404 rather than crash when given an out of range date.

1 files changed, 12 insertions, 3 deletions

diff --git a/django/views/generic/dates.py b/django/views/generic/dates.py
index 2ec8aabf6a..3b55014e73 100644
--- a/django/views/generic/dates.py
+++ b/django/views/generic/dates.py
@@ -55,7 +55,10 @@ class YearMixin:
 
         The interval is defined by start date <= item date < next start date.
         """
-        return date.replace(year=date.year + 1, month=1, day=1)
+        try:
+            return date.replace(year=date.year + 1, month=1, day=1)
+        except ValueError:
+            raise Http404(_("Date out of range"))
 
     def _get_current_year(self, date):
         """Return the start date of the current interval."""
@@ -102,7 +105,10 @@ class MonthMixin:
         The interval is defined by start date <= item date < next start date.
         """
         if date.month == 12:
-            return date.replace(year=date.year + 1, month=1, day=1)
+            try:
+                return date.replace(year=date.year + 1, month=1, day=1)
+            except ValueError:
+                raise Http404(_("Date out of range"))
         else:
             return date.replace(month=date.month + 1, day=1)
 
@@ -196,7 +202,10 @@ class WeekMixin:
 
         The interval is defined by start date <= item date < next start date.
         """
-        return date + datetime.timedelta(days=7 - self._get_weekday(date))
+        try:
+            return date + datetime.timedelta(days=7 - self._get_weekday(date))
+        except OverflowError:
+            raise Http404(_("Date out of range"))
 
     def _get_current_week(self, date):
         """Return the start date of the current interval."""