From 98f2df931ad8657f21124d8a6024967c5997fc99 Mon Sep 17 00:00:00 2001
From: Lewis Russell <lewis6991@gmail.com>
Date: Mon, 6 Mar 2023 16:10:04 +0000
Subject: [PATCH] fix(diff): add NULL check

---
 src/nvim/linematch.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/nvim/linematch.c b/src/nvim/linematch.c
index a9dac40731..a15f41d9a8 100644
--- a/src/nvim/linematch.c
+++ b/src/nvim/linematch.c
@@ -161,6 +161,9 @@ void fastforward_buf_to_lnum(const char **s, long lnum)
 {
   for (long i = 0; i < lnum - 1; i++) {
     *s = strchr(*s, '\n');
+    if (!*s) {
+      return;
+    }
     (*s)++;
   }
 }