From bc4e95127c4bbbe1b98557debfbc5e689aa6690a Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Sun, 11 Jun 2023 15:05:16 -0500
Subject: [PATCH] Fix potential out-of-bounds access in TimeFilter (#2532)

---
 src/tallies/filter_time.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tallies/filter_time.cpp b/src/tallies/filter_time.cpp
index 787acc49e..0378aa28d 100644
--- a/src/tallies/filter_time.cpp
+++ b/src/tallies/filter_time.cpp
@@ -80,10 +80,11 @@ void TimeFilter::get_all_bins(
       if (t_end < bins_[i_bin + 1])
         break;
     }
-  } else {
+  } else if (t_end < bins_.back()) {
     // -------------------------------------------------------------------------
     // For collision estimator or surface tallies, find a match based on the
     // exact time of the particle
+
     const auto i_bin = lower_bound_index(bins_.begin(), bins_.end(), t_end);
     match.bins_.push_back(i_bin);
     match.weights_.push_back(1.0);