From 1da2344aa3c88486dc11eeae2bd8583827e01f7f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 12 Jun 2021 13:03:47 +0530
Subject: [PATCH] Fix a possible crash when handling mouse clicks

---
 kitty/screen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kitty/screen.c b/kitty/screen.c
index d05cc4246..5d5a81540 100644
--- a/kitty/screen.c
+++ b/kitty/screen.c
@@ -2167,6 +2167,7 @@ screen_detect_url(Screen *screen, unsigned int x, unsigned int y) {
     bool has_url = false;
     index_type url_start, url_end = 0;
     Line *line = screen_visual_line(screen, y);
+    if (!line || x >= screen->columns) return false;
     if (line->cpu_cells[x].hyperlink_id) {
         screen_mark_hyperlink(screen, x, y);
         return true;