From a34b30039340b1917302cb1fa53103763331dafe Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Fri, 24 Feb 2023 21:09:48 -0500
Subject: [PATCH] Fuzzers: Add a WebP fuzzer

---
 Meta/Lagom/Fuzzers/CMakeLists.txt     |  1 +
 Meta/Lagom/Fuzzers/FuzzWebPLoader.cpp | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 Meta/Lagom/Fuzzers/FuzzWebPLoader.cpp

diff --git a/Meta/Lagom/Fuzzers/CMakeLists.txt b/Meta/Lagom/Fuzzers/CMakeLists.txt
index 247d9f64422..06e650a5c62 100644
--- a/Meta/Lagom/Fuzzers/CMakeLists.txt
+++ b/Meta/Lagom/Fuzzers/CMakeLists.txt
@@ -76,6 +76,7 @@ add_simple_fuzzer(FuzzRSAKeyParsing LibCrypto)
 add_simple_fuzzer(FuzzVP9Decoder LibVideo)
 add_simple_fuzzer(FuzzWAVLoader LibAudio)
 add_simple_fuzzer(FuzzWasmParser LibWasm)
+add_simple_fuzzer(FuzzWebPLoader LibGfx)
 add_simple_fuzzer(FuzzWOFF LibGfx)
 add_simple_fuzzer(FuzzXML LibXML)
 add_simple_fuzzer(FuzzZip LibArchive)
diff --git a/Meta/Lagom/Fuzzers/FuzzWebPLoader.cpp b/Meta/Lagom/Fuzzers/FuzzWebPLoader.cpp
new file mode 100644
index 00000000000..0ba2eaa240c
--- /dev/null
+++ b/Meta/Lagom/Fuzzers/FuzzWebPLoader.cpp
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2023, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibGfx/ImageFormats/WebPLoader.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(uint8_t const* data, size_t size)
+{
+    auto decoder_or_error = Gfx::WebPImageDecoderPlugin::create({ data, size });
+    if (decoder_or_error.is_error())
+        return 0;
+    auto decoder = decoder_or_error.release_value();
+    decoder->initialize();
+    (void)decoder->frame(0);
+    return 0;
+}