From f9c4f65e1faca2d4eec8c34820e3a62d871d9b0f Mon Sep 17 00:00:00 2001
From: Rummskartoffel <Rummskartoffel@protonmail.com>
Date: Fri, 7 Jan 2022 22:12:07 +0100
Subject: [PATCH] less: Fix crash on empty input

---
 Userland/Utilities/less.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Userland/Utilities/less.cpp b/Userland/Utilities/less.cpp
index d9fbf7002a..1973a5c039 100644
--- a/Userland/Utilities/less.cpp
+++ b/Userland/Utilities/less.cpp
@@ -428,6 +428,11 @@ private:
 
     void calculate_end()
     {
+        if (m_lines.is_empty()) {
+            m_end_line = 0;
+            m_end_subline = 0;
+            return;
+        }
         size_t end_line = m_lines.size() - 1;
         size_t end_subline = sublines(end_line).size() - 1;
         line_subline_add(end_line, end_subline, -(m_height - 1), false);