From a4b2e5b27b27f7243b0e5bef139290837f9501bc Mon Sep 17 00:00:00 2001
From: Lucas CHOLLET <lucas.chollet@free.fr>
Date: Sun, 11 Feb 2024 18:46:21 -0500
Subject: [PATCH] LibGfx/CCITT: Don't overrun the image width

---
 Userland/Libraries/LibGfx/ImageFormats/CCITTDecoder.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibGfx/ImageFormats/CCITTDecoder.cpp b/Userland/Libraries/LibGfx/ImageFormats/CCITTDecoder.cpp
index b137f18f7f..cadc90d582 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/CCITTDecoder.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/CCITTDecoder.cpp
@@ -273,7 +273,7 @@ ErrorOr<void> decode_single_ccitt3_1d_line(BigEndianInputBitStream& input_bit_st
     u32 run_length = 0;
     u32 column = 0;
 
-    while (column < image_width) {
+    while (column < image_width - 1) {
         if (run_length > 0) {
             run_length--;
             TRY(decoded_bits.write_bits(current_color == ccitt_white ? 0u : 1u, 1));