From 1db0883fea78f84b94c54b2562ed8666d5e06c91 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Wed, 15 Mar 2023 11:31:27 +0100
Subject: [PATCH] LibGfx: VERIFY correct type length in PNGChunk ctor

---
 Userland/Libraries/LibGfx/PNGWriter.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Userland/Libraries/LibGfx/PNGWriter.cpp b/Userland/Libraries/LibGfx/PNGWriter.cpp
index f07baccef0..8bd39aff4e 100644
--- a/Userland/Libraries/LibGfx/PNGWriter.cpp
+++ b/Userland/Libraries/LibGfx/PNGWriter.cpp
@@ -48,6 +48,8 @@ private:
 PNGChunk::PNGChunk(String type)
     : m_type(move(type))
 {
+    VERIFY(m_type.bytes().size() == 4);
+
     // NOTE: These are MUST() because they should always be able to fit in m_data's inline capacity.
     MUST(add_as_big_endian<data_length_type>(0));
     MUST(store_type());